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b534c6d3 | 1 | /* tc-i386.c -- Assemble code for the Intel 80386 |
a2c58332 | 2 | Copyright (C) 1989-2022 Free Software Foundation, Inc. |
252b5132 RH |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 8 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
9 | any later version. |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
18 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
19 | 02110-1301, USA. */ | |
252b5132 | 20 | |
47926f60 KH |
21 | /* Intel 80386 machine specific gas. |
22 | Written by Eliot Dresselhaus (eliot@mgm.mit.edu). | |
3e73aa7c | 23 | x86_64 support by Jan Hubicka (jh@suse.cz) |
0f10071e | 24 | VIA PadLock support by Michal Ludvig (mludvig@suse.cz) |
47926f60 KH |
25 | Bugs & suggestions are completely welcome. This is free software. |
26 | Please help us make it better. */ | |
252b5132 | 27 | |
252b5132 | 28 | #include "as.h" |
3882b010 | 29 | #include "safe-ctype.h" |
252b5132 | 30 | #include "subsegs.h" |
316e2c05 | 31 | #include "dwarf2dbg.h" |
54cfded0 | 32 | #include "dw2gencfi.h" |
b52c4ee4 IB |
33 | #include "gen-sframe.h" |
34 | #include "sframe.h" | |
d2b2c203 | 35 | #include "elf/x86-64.h" |
40fb9820 | 36 | #include "opcodes/i386-init.h" |
41fd2579 | 37 | #include <limits.h> |
41fd2579 | 38 | |
c3332e24 | 39 | #ifndef INFER_ADDR_PREFIX |
eecb386c | 40 | #define INFER_ADDR_PREFIX 1 |
c3332e24 AM |
41 | #endif |
42 | ||
29b0f896 AM |
43 | #ifndef DEFAULT_ARCH |
44 | #define DEFAULT_ARCH "i386" | |
246fcdee | 45 | #endif |
252b5132 | 46 | |
edde18a5 AM |
47 | #ifndef INLINE |
48 | #if __GNUC__ >= 2 | |
49 | #define INLINE __inline__ | |
50 | #else | |
51 | #define INLINE | |
52 | #endif | |
53 | #endif | |
54 | ||
6305a203 L |
55 | /* Prefixes will be emitted in the order defined below. |
56 | WAIT_PREFIX must be the first prefix since FWAIT is really is an | |
57 | instruction, and so must come before any prefixes. | |
58 | The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX, | |
42164a71 | 59 | REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */ |
6305a203 L |
60 | #define WAIT_PREFIX 0 |
61 | #define SEG_PREFIX 1 | |
62 | #define ADDR_PREFIX 2 | |
63 | #define DATA_PREFIX 3 | |
c32fa91d | 64 | #define REP_PREFIX 4 |
42164a71 | 65 | #define HLE_PREFIX REP_PREFIX |
7e8b059b | 66 | #define BND_PREFIX REP_PREFIX |
c32fa91d | 67 | #define LOCK_PREFIX 5 |
4e9ac44a L |
68 | #define REX_PREFIX 6 /* must come last. */ |
69 | #define MAX_PREFIXES 7 /* max prefixes per opcode */ | |
6305a203 L |
70 | |
71 | /* we define the syntax here (modulo base,index,scale syntax) */ | |
72 | #define REGISTER_PREFIX '%' | |
73 | #define IMMEDIATE_PREFIX '$' | |
74 | #define ABSOLUTE_PREFIX '*' | |
75 | ||
76 | /* these are the instruction mnemonic suffixes in AT&T syntax or | |
77 | memory operand size in Intel syntax. */ | |
78 | #define WORD_MNEM_SUFFIX 'w' | |
79 | #define BYTE_MNEM_SUFFIX 'b' | |
80 | #define SHORT_MNEM_SUFFIX 's' | |
81 | #define LONG_MNEM_SUFFIX 'l' | |
82 | #define QWORD_MNEM_SUFFIX 'q' | |
6305a203 L |
83 | /* Intel Syntax. Use a non-ascii letter since since it never appears |
84 | in instructions. */ | |
85 | #define LONG_DOUBLE_MNEM_SUFFIX '\1' | |
86 | ||
87 | #define END_OF_INSN '\0' | |
88 | ||
79dec6b7 JB |
89 | /* This matches the C -> StaticRounding alias in the opcode table. */ |
90 | #define commutative staticrounding | |
91 | ||
6305a203 L |
92 | /* |
93 | 'templates' is for grouping together 'template' structures for opcodes | |
94 | of the same name. This is only used for storing the insns in the grand | |
95 | ole hash table of insns. | |
96 | The templates themselves start at START and range up to (but not including) | |
97 | END. | |
98 | */ | |
99 | typedef struct | |
100 | { | |
d3ce72d0 NC |
101 | const insn_template *start; |
102 | const insn_template *end; | |
6305a203 L |
103 | } |
104 | templates; | |
105 | ||
106 | /* 386 operand encoding bytes: see 386 book for details of this. */ | |
107 | typedef struct | |
108 | { | |
109 | unsigned int regmem; /* codes register or memory operand */ | |
110 | unsigned int reg; /* codes register operand (or extended opcode) */ | |
111 | unsigned int mode; /* how to interpret regmem & reg */ | |
112 | } | |
113 | modrm_byte; | |
114 | ||
115 | /* x86-64 extension prefix. */ | |
116 | typedef int rex_byte; | |
117 | ||
6305a203 L |
118 | /* 386 opcode byte to code indirect addressing. */ |
119 | typedef struct | |
120 | { | |
121 | unsigned base; | |
122 | unsigned index; | |
123 | unsigned scale; | |
124 | } | |
125 | sib_byte; | |
126 | ||
6305a203 L |
127 | /* x86 arch names, types and features */ |
128 | typedef struct | |
129 | { | |
130 | const char *name; /* arch name */ | |
6ceeed25 JB |
131 | unsigned int len:8; /* arch string length */ |
132 | bool skip:1; /* show_arch should skip this. */ | |
6305a203 | 133 | enum processor_type type; /* arch type */ |
ae89daec JB |
134 | i386_cpu_flags enable; /* cpu feature enable flags */ |
135 | i386_cpu_flags disable; /* cpu feature disable flags */ | |
6305a203 L |
136 | } |
137 | arch_entry; | |
138 | ||
78f12dd3 | 139 | static void update_code_flag (int, int); |
e3bb37b5 L |
140 | static void set_code_flag (int); |
141 | static void set_16bit_gcc_code_flag (int); | |
142 | static void set_intel_syntax (int); | |
1efbbeb4 | 143 | static void set_intel_mnemonic (int); |
db51cc60 | 144 | static void set_allow_index_reg (int); |
7bab8ab5 | 145 | static void set_check (int); |
e3bb37b5 | 146 | static void set_cpu_arch (int); |
6482c264 | 147 | #ifdef TE_PE |
e3bb37b5 | 148 | static void pe_directive_secrel (int); |
145667f8 | 149 | static void pe_directive_secidx (int); |
6482c264 | 150 | #endif |
e3bb37b5 L |
151 | static void signed_cons (int); |
152 | static char *output_invalid (int c); | |
ee86248c JB |
153 | static int i386_finalize_immediate (segT, expressionS *, i386_operand_type, |
154 | const char *); | |
155 | static int i386_finalize_displacement (segT, expressionS *, i386_operand_type, | |
156 | const char *); | |
a7619375 | 157 | static int i386_att_operand (char *); |
e3bb37b5 | 158 | static int i386_intel_operand (char *, int); |
ee86248c JB |
159 | static int i386_intel_simplify (expressionS *); |
160 | static int i386_intel_parse_name (const char *, expressionS *); | |
e3bb37b5 L |
161 | static const reg_entry *parse_register (char *, char **); |
162 | static char *parse_insn (char *, char *); | |
163 | static char *parse_operands (char *, const char *); | |
164 | static void swap_operands (void); | |
783c187b | 165 | static void swap_2_operands (unsigned int, unsigned int); |
48bcea9f | 166 | static enum flag_code i386_addressing_mode (void); |
e3bb37b5 L |
167 | static void optimize_imm (void); |
168 | static void optimize_disp (void); | |
83b16ac6 | 169 | static const insn_template *match_template (char); |
e3bb37b5 L |
170 | static int check_string (void); |
171 | static int process_suffix (void); | |
172 | static int check_byte_reg (void); | |
173 | static int check_long_reg (void); | |
174 | static int check_qword_reg (void); | |
175 | static int check_word_reg (void); | |
176 | static int finalize_imm (void); | |
177 | static int process_operands (void); | |
5e042380 | 178 | static const reg_entry *build_modrm_byte (void); |
e3bb37b5 L |
179 | static void output_insn (void); |
180 | static void output_imm (fragS *, offsetT); | |
181 | static void output_disp (fragS *, offsetT); | |
29b0f896 | 182 | #ifndef I386COFF |
e3bb37b5 | 183 | static void s_bss (int); |
252b5132 | 184 | #endif |
17d4e2a2 L |
185 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
186 | static void handle_large_common (int small ATTRIBUTE_UNUSED); | |
b4a3a7b4 L |
187 | |
188 | /* GNU_PROPERTY_X86_ISA_1_USED. */ | |
189 | static unsigned int x86_isa_1_used; | |
190 | /* GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
191 | static unsigned int x86_feature_2_used; | |
192 | /* Generate x86 used ISA and feature properties. */ | |
193 | static unsigned int x86_used_note = DEFAULT_X86_USED_NOTE; | |
17d4e2a2 | 194 | #endif |
252b5132 | 195 | |
a847613f | 196 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 197 | |
8a6fb3f9 JB |
198 | /* parse_register() returns this when a register alias cannot be used. */ |
199 | static const reg_entry bad_reg = { "<bad>", OPERAND_TYPE_NONE, 0, 0, | |
200 | { Dw2Inval, Dw2Inval } }; | |
201 | ||
34684862 | 202 | static const reg_entry *reg_eax; |
5e042380 JB |
203 | static const reg_entry *reg_ds; |
204 | static const reg_entry *reg_es; | |
205 | static const reg_entry *reg_ss; | |
6288d05f | 206 | static const reg_entry *reg_st0; |
6225c532 JB |
207 | static const reg_entry *reg_k0; |
208 | ||
c0f3af97 L |
209 | /* VEX prefix. */ |
210 | typedef struct | |
211 | { | |
43234a1e L |
212 | /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */ |
213 | unsigned char bytes[4]; | |
c0f3af97 L |
214 | unsigned int length; |
215 | /* Destination or source register specifier. */ | |
216 | const reg_entry *register_specifier; | |
217 | } vex_prefix; | |
218 | ||
252b5132 | 219 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 220 | i386_insn. */ |
252b5132 | 221 | |
520dc8e8 AM |
222 | union i386_op |
223 | { | |
224 | expressionS *disps; | |
225 | expressionS *imms; | |
226 | const reg_entry *regs; | |
227 | }; | |
228 | ||
a65babc9 L |
229 | enum i386_error |
230 | { | |
b4d65f2d | 231 | no_error, /* Must be first. */ |
86e026a4 | 232 | operand_size_mismatch, |
a65babc9 L |
233 | operand_type_mismatch, |
234 | register_type_mismatch, | |
235 | number_of_operands_mismatch, | |
236 | invalid_instruction_suffix, | |
237 | bad_imm4, | |
a65babc9 L |
238 | unsupported_with_intel_mnemonic, |
239 | unsupported_syntax, | |
6c30d220 | 240 | unsupported, |
260cd341 | 241 | invalid_sib_address, |
6c30d220 | 242 | invalid_vsib_address, |
7bab8ab5 | 243 | invalid_vector_register_set, |
260cd341 | 244 | invalid_tmm_register_set, |
0cc78721 | 245 | invalid_dest_and_src_register_set, |
43234a1e L |
246 | unsupported_vector_index_register, |
247 | unsupported_broadcast, | |
43234a1e L |
248 | broadcast_needed, |
249 | unsupported_masking, | |
250 | mask_not_on_destination, | |
251 | no_default_mask, | |
252 | unsupported_rc_sae, | |
43234a1e | 253 | invalid_register_operand, |
a65babc9 L |
254 | }; |
255 | ||
252b5132 RH |
256 | struct _i386_insn |
257 | { | |
47926f60 | 258 | /* TM holds the template for the insn were currently assembling. */ |
d3ce72d0 | 259 | insn_template tm; |
252b5132 | 260 | |
7d5e4556 L |
261 | /* SUFFIX holds the instruction size suffix for byte, word, dword |
262 | or qword, if given. */ | |
252b5132 RH |
263 | char suffix; |
264 | ||
9a182d04 JB |
265 | /* OPCODE_LENGTH holds the number of base opcode bytes. */ |
266 | unsigned char opcode_length; | |
267 | ||
47926f60 | 268 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
269 | unsigned int operands; |
270 | ||
271 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
272 | of given register, displacement, memory operands and immediate | |
47926f60 | 273 | operands. */ |
252b5132 RH |
274 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
275 | ||
276 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 277 | use OP[i] for the corresponding operand. */ |
40fb9820 | 278 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 279 | |
520dc8e8 AM |
280 | /* Displacement expression, immediate expression, or register for each |
281 | operand. */ | |
282 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 283 | |
3e73aa7c JH |
284 | /* Flags for operands. */ |
285 | unsigned int flags[MAX_OPERANDS]; | |
286 | #define Operand_PCrel 1 | |
c48dadc9 | 287 | #define Operand_Mem 2 |
3e73aa7c | 288 | |
252b5132 | 289 | /* Relocation type for operand */ |
f86103b7 | 290 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 291 | |
252b5132 RH |
292 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
293 | the base index byte below. */ | |
294 | const reg_entry *base_reg; | |
295 | const reg_entry *index_reg; | |
296 | unsigned int log2_scale_factor; | |
297 | ||
298 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 299 | explicit segment overrides are given. */ |
5e042380 | 300 | const reg_entry *seg[2]; |
252b5132 | 301 | |
8325cc63 JB |
302 | /* Copied first memory operand string, for re-checking. */ |
303 | char *memop1_string; | |
304 | ||
252b5132 RH |
305 | /* PREFIX holds all the given prefix opcodes (usually null). |
306 | PREFIXES is the number of prefix opcodes. */ | |
307 | unsigned int prefixes; | |
308 | unsigned char prefix[MAX_PREFIXES]; | |
309 | ||
50128d0c | 310 | /* Register is in low 3 bits of opcode. */ |
5b7c81bd | 311 | bool short_form; |
50128d0c | 312 | |
6f2f06be | 313 | /* The operand to a branch insn indicates an absolute branch. */ |
5b7c81bd | 314 | bool jumpabsolute; |
6f2f06be | 315 | |
9373f275 L |
316 | /* There is a memory operand of (%dx) which should be only used |
317 | with input/output instructions. */ | |
318 | bool input_output_operand; | |
319 | ||
921eafea L |
320 | /* Extended states. */ |
321 | enum | |
322 | { | |
323 | /* Use MMX state. */ | |
324 | xstate_mmx = 1 << 0, | |
325 | /* Use XMM state. */ | |
326 | xstate_xmm = 1 << 1, | |
327 | /* Use YMM state. */ | |
328 | xstate_ymm = 1 << 2 | xstate_xmm, | |
329 | /* Use ZMM state. */ | |
330 | xstate_zmm = 1 << 3 | xstate_ymm, | |
331 | /* Use TMM state. */ | |
32930e4e L |
332 | xstate_tmm = 1 << 4, |
333 | /* Use MASK state. */ | |
334 | xstate_mask = 1 << 5 | |
921eafea | 335 | } xstate; |
260cd341 | 336 | |
e379e5f3 | 337 | /* Has GOTPC or TLS relocation. */ |
5b7c81bd | 338 | bool has_gotpc_tls_reloc; |
e379e5f3 | 339 | |
252b5132 | 340 | /* RM and SIB are the modrm byte and the sib byte where the |
c1e679ec | 341 | addressing modes of this insn are encoded. */ |
252b5132 | 342 | modrm_byte rm; |
3e73aa7c | 343 | rex_byte rex; |
43234a1e | 344 | rex_byte vrex; |
252b5132 | 345 | sib_byte sib; |
c0f3af97 | 346 | vex_prefix vex; |
b6169b20 | 347 | |
6225c532 JB |
348 | /* Masking attributes. |
349 | ||
350 | The struct describes masking, applied to OPERAND in the instruction. | |
351 | REG is a pointer to the corresponding mask register. ZEROING tells | |
352 | whether merging or zeroing mask is used. */ | |
353 | struct Mask_Operation | |
354 | { | |
355 | const reg_entry *reg; | |
356 | unsigned int zeroing; | |
357 | /* The operand where this operation is associated. */ | |
358 | unsigned int operand; | |
359 | } mask; | |
43234a1e L |
360 | |
361 | /* Rounding control and SAE attributes. */ | |
ca5312a2 JB |
362 | struct RC_Operation |
363 | { | |
364 | enum rc_type | |
365 | { | |
366 | rc_none = -1, | |
367 | rne, | |
368 | rd, | |
369 | ru, | |
370 | rz, | |
371 | saeonly | |
372 | } type; | |
7063667e JB |
373 | /* In Intel syntax the operand modifier form is supposed to be used, but |
374 | we continue to accept the immediate forms as well. */ | |
375 | bool modifier; | |
ca5312a2 | 376 | } rounding; |
43234a1e | 377 | |
5273a3cd JB |
378 | /* Broadcasting attributes. |
379 | ||
380 | The struct describes broadcasting, applied to OPERAND. TYPE is | |
381 | expresses the broadcast factor. */ | |
382 | struct Broadcast_Operation | |
383 | { | |
0cc78721 | 384 | /* Type of broadcast: {1to2}, {1to4}, {1to8}, {1to16} or {1to32}. */ |
5273a3cd JB |
385 | unsigned int type; |
386 | ||
387 | /* Index of broadcasted operand. */ | |
388 | unsigned int operand; | |
389 | ||
390 | /* Number of bytes to broadcast. */ | |
391 | unsigned int bytes; | |
392 | } broadcast; | |
43234a1e L |
393 | |
394 | /* Compressed disp8*N attribute. */ | |
395 | unsigned int memshift; | |
396 | ||
86fa6981 L |
397 | /* Prefer load or store in encoding. */ |
398 | enum | |
399 | { | |
400 | dir_encoding_default = 0, | |
401 | dir_encoding_load, | |
64c49ab3 JB |
402 | dir_encoding_store, |
403 | dir_encoding_swap | |
86fa6981 | 404 | } dir_encoding; |
891edac4 | 405 | |
41eb8e88 | 406 | /* Prefer 8bit, 16bit, 32bit displacement in encoding. */ |
a501d77e L |
407 | enum |
408 | { | |
409 | disp_encoding_default = 0, | |
410 | disp_encoding_8bit, | |
41eb8e88 | 411 | disp_encoding_16bit, |
a501d77e L |
412 | disp_encoding_32bit |
413 | } disp_encoding; | |
f8a5c266 | 414 | |
6b6b6807 | 415 | /* Prefer the REX byte in encoding. */ |
5b7c81bd | 416 | bool rex_encoding; |
6b6b6807 | 417 | |
b6f8c7c4 | 418 | /* Disable instruction size optimization. */ |
5b7c81bd | 419 | bool no_optimize; |
b6f8c7c4 | 420 | |
86fa6981 L |
421 | /* How to encode vector instructions. */ |
422 | enum | |
423 | { | |
424 | vex_encoding_default = 0, | |
42e04b36 | 425 | vex_encoding_vex, |
86fa6981 | 426 | vex_encoding_vex3, |
da4977e0 JB |
427 | vex_encoding_evex, |
428 | vex_encoding_error | |
86fa6981 L |
429 | } vec_encoding; |
430 | ||
d5de92cf L |
431 | /* REP prefix. */ |
432 | const char *rep_prefix; | |
433 | ||
165de32a L |
434 | /* HLE prefix. */ |
435 | const char *hle_prefix; | |
42164a71 | 436 | |
7e8b059b L |
437 | /* Have BND prefix. */ |
438 | const char *bnd_prefix; | |
439 | ||
04ef582a L |
440 | /* Have NOTRACK prefix. */ |
441 | const char *notrack_prefix; | |
442 | ||
891edac4 | 443 | /* Error message. */ |
a65babc9 | 444 | enum i386_error error; |
252b5132 RH |
445 | }; |
446 | ||
447 | typedef struct _i386_insn i386_insn; | |
448 | ||
43234a1e L |
449 | /* Link RC type with corresponding string, that'll be looked for in |
450 | asm. */ | |
451 | struct RC_name | |
452 | { | |
453 | enum rc_type type; | |
454 | const char *name; | |
455 | unsigned int len; | |
456 | }; | |
457 | ||
458 | static const struct RC_name RC_NamesTable[] = | |
459 | { | |
460 | { rne, STRING_COMMA_LEN ("rn-sae") }, | |
461 | { rd, STRING_COMMA_LEN ("rd-sae") }, | |
462 | { ru, STRING_COMMA_LEN ("ru-sae") }, | |
463 | { rz, STRING_COMMA_LEN ("rz-sae") }, | |
464 | { saeonly, STRING_COMMA_LEN ("sae") }, | |
465 | }; | |
466 | ||
252b5132 RH |
467 | /* List of chars besides those in app.c:symbol_chars that can start an |
468 | operand. Used to prevent the scrubber eating vital white-space. */ | |
86fa6981 | 469 | const char extra_symbol_chars[] = "*%-([{}" |
252b5132 | 470 | #ifdef LEX_AT |
32137342 NC |
471 | "@" |
472 | #endif | |
473 | #ifdef LEX_QM | |
474 | "?" | |
252b5132 | 475 | #endif |
32137342 | 476 | ; |
252b5132 | 477 | |
b3983e5f JB |
478 | #if ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ |
479 | && !defined (TE_GNU) \ | |
480 | && !defined (TE_LINUX) \ | |
d85e70a3 | 481 | && !defined (TE_Haiku) \ |
b3983e5f JB |
482 | && !defined (TE_FreeBSD) \ |
483 | && !defined (TE_DragonFly) \ | |
484 | && !defined (TE_NetBSD)) | |
252b5132 | 485 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
486 | pre-processor is disabled, these aren't very useful. The option |
487 | --divide will remove '/' from this list. */ | |
488 | const char *i386_comment_chars = "#/"; | |
489 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 490 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 491 | |
b3b91714 AM |
492 | #else |
493 | const char *i386_comment_chars = "#"; | |
494 | #define PREFIX_SEPARATOR '/' | |
495 | #endif | |
496 | ||
252b5132 RH |
497 | /* This array holds the chars that only start a comment at the beginning of |
498 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
499 | .line and .file directives will appear in the pre-processed output. |
500 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 501 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
502 | #NO_APP at the beginning of its output. |
503 | Also note that comments started like this one will always work if | |
252b5132 | 504 | '/' isn't otherwise defined. */ |
b3b91714 | 505 | const char line_comment_chars[] = "#/"; |
252b5132 | 506 | |
63a0b638 | 507 | const char line_separator_chars[] = ";"; |
252b5132 | 508 | |
ce8a8b2f AM |
509 | /* Chars that can be used to separate mant from exp in floating point |
510 | nums. */ | |
252b5132 RH |
511 | const char EXP_CHARS[] = "eE"; |
512 | ||
ce8a8b2f AM |
513 | /* Chars that mean this number is a floating point constant |
514 | As in 0f12.456 | |
515 | or 0d1.2345e12. */ | |
de133cf9 | 516 | const char FLT_CHARS[] = "fFdDxXhHbB"; |
252b5132 | 517 | |
ce8a8b2f | 518 | /* Tables for lexical analysis. */ |
252b5132 RH |
519 | static char mnemonic_chars[256]; |
520 | static char register_chars[256]; | |
521 | static char operand_chars[256]; | |
522 | static char identifier_chars[256]; | |
252b5132 | 523 | |
ce8a8b2f | 524 | /* Lexical macros. */ |
252b5132 RH |
525 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
526 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
527 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
528 | #define is_space_char(x) ((x) == ' ') | |
529 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
252b5132 | 530 | |
0234cb7c | 531 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
532 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
533 | ||
534 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
535 | effect this we maintain a stack of saved characters that we've smashed | |
536 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 537 | assembler instruction). */ |
252b5132 | 538 | static char save_stack[32]; |
ce8a8b2f | 539 | static char *save_stack_p; |
252b5132 RH |
540 | #define END_STRING_AND_SAVE(s) \ |
541 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
542 | #define RESTORE_END_STRING(s) \ | |
543 | do { *(s) = *--save_stack_p; } while (0) | |
544 | ||
47926f60 | 545 | /* The instruction we're assembling. */ |
252b5132 RH |
546 | static i386_insn i; |
547 | ||
548 | /* Possible templates for current insn. */ | |
549 | static const templates *current_templates; | |
550 | ||
31b2323c L |
551 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
552 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
553 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 554 | |
47926f60 | 555 | /* Current operand we are working on. */ |
ee86248c | 556 | static int this_operand = -1; |
252b5132 | 557 | |
3e73aa7c JH |
558 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
559 | these. */ | |
560 | ||
561 | enum flag_code { | |
562 | CODE_32BIT, | |
563 | CODE_16BIT, | |
564 | CODE_64BIT }; | |
565 | ||
566 | static enum flag_code flag_code; | |
4fa24527 | 567 | static unsigned int object_64bit; |
862be3fb | 568 | static unsigned int disallow_64bit_reloc; |
3e73aa7c | 569 | static int use_rela_relocations = 0; |
e379e5f3 L |
570 | /* __tls_get_addr/___tls_get_addr symbol for TLS. */ |
571 | static const char *tls_get_addr; | |
3e73aa7c | 572 | |
7af8ed2d NC |
573 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
574 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ | |
575 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) | |
576 | ||
351f65ca L |
577 | /* The ELF ABI to use. */ |
578 | enum x86_elf_abi | |
579 | { | |
580 | I386_ABI, | |
7f56bc95 L |
581 | X86_64_ABI, |
582 | X86_64_X32_ABI | |
351f65ca L |
583 | }; |
584 | ||
585 | static enum x86_elf_abi x86_elf_abi = I386_ABI; | |
7af8ed2d | 586 | #endif |
351f65ca | 587 | |
167ad85b TG |
588 | #if defined (TE_PE) || defined (TE_PEP) |
589 | /* Use big object file format. */ | |
590 | static int use_big_obj = 0; | |
591 | #endif | |
592 | ||
8dcea932 L |
593 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
594 | /* 1 if generating code for a shared library. */ | |
595 | static int shared = 0; | |
b52c4ee4 IB |
596 | |
597 | unsigned int x86_sframe_cfa_sp_reg; | |
598 | /* The other CFA base register for SFrame unwind info. */ | |
599 | unsigned int x86_sframe_cfa_fp_reg; | |
600 | unsigned int x86_sframe_cfa_ra_reg; | |
601 | ||
8dcea932 L |
602 | #endif |
603 | ||
47926f60 KH |
604 | /* 1 for intel syntax, |
605 | 0 if att syntax. */ | |
606 | static int intel_syntax = 0; | |
252b5132 | 607 | |
4b5aaf5f L |
608 | static enum x86_64_isa |
609 | { | |
610 | amd64 = 1, /* AMD64 ISA. */ | |
611 | intel64 /* Intel64 ISA. */ | |
612 | } isa64; | |
e89c5eaa | 613 | |
1efbbeb4 L |
614 | /* 1 for intel mnemonic, |
615 | 0 if att mnemonic. */ | |
616 | static int intel_mnemonic = !SYSV386_COMPAT; | |
617 | ||
a60de03c JB |
618 | /* 1 if pseudo registers are permitted. */ |
619 | static int allow_pseudo_reg = 0; | |
620 | ||
47926f60 KH |
621 | /* 1 if register prefix % not required. */ |
622 | static int allow_naked_reg = 0; | |
252b5132 | 623 | |
33eaf5de | 624 | /* 1 if the assembler should add BND prefix for all control-transferring |
7e8b059b L |
625 | instructions supporting it, even if this prefix wasn't specified |
626 | explicitly. */ | |
627 | static int add_bnd_prefix = 0; | |
628 | ||
ba104c83 | 629 | /* 1 if pseudo index register, eiz/riz, is allowed . */ |
db51cc60 L |
630 | static int allow_index_reg = 0; |
631 | ||
d022bddd IT |
632 | /* 1 if the assembler should ignore LOCK prefix, even if it was |
633 | specified explicitly. */ | |
634 | static int omit_lock_prefix = 0; | |
635 | ||
e4e00185 AS |
636 | /* 1 if the assembler should encode lfence, mfence, and sfence as |
637 | "lock addl $0, (%{re}sp)". */ | |
638 | static int avoid_fence = 0; | |
639 | ||
ae531041 L |
640 | /* 1 if lfence should be inserted after every load. */ |
641 | static int lfence_after_load = 0; | |
642 | ||
643 | /* Non-zero if lfence should be inserted before indirect branch. */ | |
644 | static enum lfence_before_indirect_branch_kind | |
645 | { | |
646 | lfence_branch_none = 0, | |
647 | lfence_branch_register, | |
648 | lfence_branch_memory, | |
649 | lfence_branch_all | |
650 | } | |
651 | lfence_before_indirect_branch; | |
652 | ||
653 | /* Non-zero if lfence should be inserted before ret. */ | |
654 | static enum lfence_before_ret_kind | |
655 | { | |
656 | lfence_before_ret_none = 0, | |
657 | lfence_before_ret_not, | |
a09f656b | 658 | lfence_before_ret_or, |
659 | lfence_before_ret_shl | |
ae531041 L |
660 | } |
661 | lfence_before_ret; | |
662 | ||
663 | /* Types of previous instruction is .byte or prefix. */ | |
e379e5f3 L |
664 | static struct |
665 | { | |
666 | segT seg; | |
667 | const char *file; | |
668 | const char *name; | |
669 | unsigned int line; | |
670 | enum last_insn_kind | |
671 | { | |
672 | last_insn_other = 0, | |
673 | last_insn_directive, | |
674 | last_insn_prefix | |
675 | } kind; | |
676 | } last_insn; | |
677 | ||
0cb4071e L |
678 | /* 1 if the assembler should generate relax relocations. */ |
679 | ||
680 | static int generate_relax_relocations | |
681 | = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS; | |
682 | ||
7bab8ab5 | 683 | static enum check_kind |
daf50ae7 | 684 | { |
7bab8ab5 JB |
685 | check_none = 0, |
686 | check_warning, | |
687 | check_error | |
daf50ae7 | 688 | } |
7bab8ab5 | 689 | sse_check, operand_check = check_warning; |
daf50ae7 | 690 | |
e379e5f3 L |
691 | /* Non-zero if branches should be aligned within power of 2 boundary. */ |
692 | static int align_branch_power = 0; | |
693 | ||
694 | /* Types of branches to align. */ | |
695 | enum align_branch_kind | |
696 | { | |
697 | align_branch_none = 0, | |
698 | align_branch_jcc = 1, | |
699 | align_branch_fused = 2, | |
700 | align_branch_jmp = 3, | |
701 | align_branch_call = 4, | |
702 | align_branch_indirect = 5, | |
703 | align_branch_ret = 6 | |
704 | }; | |
705 | ||
706 | /* Type bits of branches to align. */ | |
707 | enum align_branch_bit | |
708 | { | |
709 | align_branch_jcc_bit = 1 << align_branch_jcc, | |
710 | align_branch_fused_bit = 1 << align_branch_fused, | |
711 | align_branch_jmp_bit = 1 << align_branch_jmp, | |
712 | align_branch_call_bit = 1 << align_branch_call, | |
713 | align_branch_indirect_bit = 1 << align_branch_indirect, | |
714 | align_branch_ret_bit = 1 << align_branch_ret | |
715 | }; | |
716 | ||
717 | static unsigned int align_branch = (align_branch_jcc_bit | |
718 | | align_branch_fused_bit | |
719 | | align_branch_jmp_bit); | |
720 | ||
79d72f45 HL |
721 | /* Types of condition jump used by macro-fusion. */ |
722 | enum mf_jcc_kind | |
723 | { | |
724 | mf_jcc_jo = 0, /* base opcode 0x70 */ | |
725 | mf_jcc_jc, /* base opcode 0x72 */ | |
726 | mf_jcc_je, /* base opcode 0x74 */ | |
727 | mf_jcc_jna, /* base opcode 0x76 */ | |
728 | mf_jcc_js, /* base opcode 0x78 */ | |
729 | mf_jcc_jp, /* base opcode 0x7a */ | |
730 | mf_jcc_jl, /* base opcode 0x7c */ | |
731 | mf_jcc_jle, /* base opcode 0x7e */ | |
732 | }; | |
733 | ||
734 | /* Types of compare flag-modifying insntructions used by macro-fusion. */ | |
735 | enum mf_cmp_kind | |
736 | { | |
737 | mf_cmp_test_and, /* test/cmp */ | |
738 | mf_cmp_alu_cmp, /* add/sub/cmp */ | |
739 | mf_cmp_incdec /* inc/dec */ | |
740 | }; | |
741 | ||
e379e5f3 L |
742 | /* The maximum padding size for fused jcc. CMP like instruction can |
743 | be 9 bytes and jcc can be 6 bytes. Leave room just in case for | |
744 | prefixes. */ | |
745 | #define MAX_FUSED_JCC_PADDING_SIZE 20 | |
746 | ||
747 | /* The maximum number of prefixes added for an instruction. */ | |
748 | static unsigned int align_branch_prefix_size = 5; | |
749 | ||
b6f8c7c4 L |
750 | /* Optimization: |
751 | 1. Clear the REX_W bit with register operand if possible. | |
752 | 2. Above plus use 128bit vector instruction to clear the full vector | |
753 | register. | |
754 | */ | |
755 | static int optimize = 0; | |
756 | ||
757 | /* Optimization: | |
758 | 1. Clear the REX_W bit with register operand if possible. | |
759 | 2. Above plus use 128bit vector instruction to clear the full vector | |
760 | register. | |
761 | 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to | |
762 | "testb $imm7,%r8". | |
763 | */ | |
764 | static int optimize_for_space = 0; | |
765 | ||
2ca3ace5 L |
766 | /* Register prefix used for error message. */ |
767 | static const char *register_prefix = "%"; | |
768 | ||
47926f60 KH |
769 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
770 | leave, push, and pop instructions so that gcc has the same stack | |
771 | frame as in 32 bit mode. */ | |
772 | static char stackop_size = '\0'; | |
eecb386c | 773 | |
12b55ccc L |
774 | /* Non-zero to optimize code alignment. */ |
775 | int optimize_align_code = 1; | |
776 | ||
47926f60 KH |
777 | /* Non-zero to quieten some warnings. */ |
778 | static int quiet_warnings = 0; | |
a38cf1db | 779 | |
d59a54c2 JB |
780 | /* Guard to avoid repeated warnings about non-16-bit code on 16-bit CPUs. */ |
781 | static bool pre_386_16bit_warned; | |
782 | ||
47926f60 KH |
783 | /* CPU name. */ |
784 | static const char *cpu_arch_name = NULL; | |
6305a203 | 785 | static char *cpu_sub_arch_name = NULL; |
a38cf1db | 786 | |
47926f60 | 787 | /* CPU feature flags. */ |
40fb9820 L |
788 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
789 | ||
ccc9c027 L |
790 | /* If we have selected a cpu we are generating instructions for. */ |
791 | static int cpu_arch_tune_set = 0; | |
792 | ||
9103f4f4 | 793 | /* Cpu we are generating instructions for. */ |
fbf3f584 | 794 | enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; |
9103f4f4 L |
795 | |
796 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 797 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 798 | |
ccc9c027 | 799 | /* CPU instruction set architecture used. */ |
fbf3f584 | 800 | enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; |
ccc9c027 | 801 | |
9103f4f4 | 802 | /* CPU feature flags of instruction set architecture used. */ |
fbf3f584 | 803 | i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 804 | |
fddf5b5b AM |
805 | /* If set, conditional jumps are not automatically promoted to handle |
806 | larger than a byte offset. */ | |
f68697e8 | 807 | static bool no_cond_jump_promotion = false; |
fddf5b5b | 808 | |
c0f3af97 L |
809 | /* Encode SSE instructions with VEX prefix. */ |
810 | static unsigned int sse2avx; | |
811 | ||
c8480b58 L |
812 | /* Encode aligned vector move as unaligned vector move. */ |
813 | static unsigned int use_unaligned_vector_move; | |
814 | ||
539f890d L |
815 | /* Encode scalar AVX instructions with specific vector length. */ |
816 | static enum | |
817 | { | |
818 | vex128 = 0, | |
819 | vex256 | |
820 | } avxscalar; | |
821 | ||
03751133 L |
822 | /* Encode VEX WIG instructions with specific vex.w. */ |
823 | static enum | |
824 | { | |
825 | vexw0 = 0, | |
826 | vexw1 | |
827 | } vexwig; | |
828 | ||
43234a1e L |
829 | /* Encode scalar EVEX LIG instructions with specific vector length. */ |
830 | static enum | |
831 | { | |
832 | evexl128 = 0, | |
833 | evexl256, | |
834 | evexl512 | |
835 | } evexlig; | |
836 | ||
837 | /* Encode EVEX WIG instructions with specific evex.w. */ | |
838 | static enum | |
839 | { | |
840 | evexw0 = 0, | |
841 | evexw1 | |
842 | } evexwig; | |
843 | ||
d3d3c6db IT |
844 | /* Value to encode in EVEX RC bits, for SAE-only instructions. */ |
845 | static enum rc_type evexrcig = rne; | |
846 | ||
29b0f896 | 847 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 848 | static symbolS *GOT_symbol; |
29b0f896 | 849 | |
a4447b93 RH |
850 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
851 | unsigned int x86_dwarf2_return_column; | |
852 | ||
853 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
854 | int x86_cie_data_alignment; | |
855 | ||
252b5132 | 856 | /* Interface to relax_segment. |
fddf5b5b AM |
857 | There are 3 major relax states for 386 jump insns because the |
858 | different types of jumps add different sizes to frags when we're | |
e379e5f3 L |
859 | figuring out what sort of jump to choose to reach a given label. |
860 | ||
861 | BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING are used to align | |
862 | branches which are handled by md_estimate_size_before_relax() and | |
863 | i386_generic_table_relax_frag(). */ | |
252b5132 | 864 | |
47926f60 | 865 | /* Types. */ |
93c2a809 AM |
866 | #define UNCOND_JUMP 0 |
867 | #define COND_JUMP 1 | |
868 | #define COND_JUMP86 2 | |
e379e5f3 L |
869 | #define BRANCH_PADDING 3 |
870 | #define BRANCH_PREFIX 4 | |
871 | #define FUSED_JCC_PADDING 5 | |
fddf5b5b | 872 | |
47926f60 | 873 | /* Sizes. */ |
252b5132 RH |
874 | #define CODE16 1 |
875 | #define SMALL 0 | |
29b0f896 | 876 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 877 | #define BIG 2 |
29b0f896 | 878 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
879 | |
880 | #ifndef INLINE | |
881 | #ifdef __GNUC__ | |
882 | #define INLINE __inline__ | |
883 | #else | |
884 | #define INLINE | |
885 | #endif | |
886 | #endif | |
887 | ||
fddf5b5b AM |
888 | #define ENCODE_RELAX_STATE(type, size) \ |
889 | ((relax_substateT) (((type) << 2) | (size))) | |
890 | #define TYPE_FROM_RELAX_STATE(s) \ | |
891 | ((s) >> 2) | |
892 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
893 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
894 | |
895 | /* This table is used by relax_frag to promote short jumps to long | |
896 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
897 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
898 | don't allow a short jump in a 32 bit code segment to be promoted to | |
899 | a 16 bit offset jump because it's slower (requires data size | |
900 | prefix), and doesn't work, unless the destination is in the bottom | |
901 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
902 | ||
903 | const relax_typeS md_relax_table[] = | |
904 | { | |
24eab124 AM |
905 | /* The fields are: |
906 | 1) most positive reach of this state, | |
907 | 2) most negative reach of this state, | |
93c2a809 | 908 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 909 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 910 | |
fddf5b5b | 911 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
912 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
913 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
914 | /* dword jmp adds 4 bytes to frag: | |
915 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 916 | {0, 0, 4, 0}, |
93c2a809 AM |
917 | /* word jmp adds 2 byte2 to frag: |
918 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
919 | {0, 0, 2, 0}, |
920 | ||
93c2a809 AM |
921 | /* COND_JUMP states. */ |
922 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
923 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
924 | /* dword conditionals adds 5 bytes to frag: | |
925 | 1 extra opcode byte, 4 displacement bytes. */ | |
926 | {0, 0, 5, 0}, | |
fddf5b5b | 927 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
928 | 1 extra opcode byte, 2 displacement bytes. */ |
929 | {0, 0, 3, 0}, | |
930 | ||
931 | /* COND_JUMP86 states. */ | |
932 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
933 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
934 | /* dword conditionals adds 5 bytes to frag: | |
935 | 1 extra opcode byte, 4 displacement bytes. */ | |
936 | {0, 0, 5, 0}, | |
937 | /* word conditionals add 4 bytes to frag: | |
938 | 1 displacement byte and a 3 byte long branch insn. */ | |
939 | {0, 0, 4, 0} | |
252b5132 RH |
940 | }; |
941 | ||
6ceeed25 | 942 | #define ARCH(n, t, f, s) \ |
ae89daec JB |
943 | { STRING_COMMA_LEN (#n), s, PROCESSOR_ ## t, CPU_ ## f ## _FLAGS, \ |
944 | CPU_NONE_FLAGS } | |
945 | #define SUBARCH(n, e, d, s) \ | |
946 | { STRING_COMMA_LEN (#n), s, PROCESSOR_NONE, CPU_ ## e ## _FLAGS, \ | |
947 | CPU_ ## d ## _FLAGS } | |
6ceeed25 | 948 | |
9103f4f4 L |
949 | static const arch_entry cpu_arch[] = |
950 | { | |
3ce2ebcf JB |
951 | /* Do not replace the first two entries - i386_target_format() and |
952 | set_cpu_arch() rely on them being there in this order. */ | |
6ceeed25 JB |
953 | ARCH (generic32, GENERIC32, GENERIC32, false), |
954 | ARCH (generic64, GENERIC64, GENERIC64, false), | |
955 | ARCH (i8086, UNKNOWN, NONE, false), | |
956 | ARCH (i186, UNKNOWN, I186, false), | |
957 | ARCH (i286, UNKNOWN, I286, false), | |
958 | ARCH (i386, I386, I386, false), | |
959 | ARCH (i486, I486, I486, false), | |
960 | ARCH (i586, PENTIUM, I586, false), | |
961 | ARCH (i686, PENTIUMPRO, I686, false), | |
962 | ARCH (pentium, PENTIUM, I586, false), | |
963 | ARCH (pentiumpro, PENTIUMPRO, PENTIUMPRO, false), | |
964 | ARCH (pentiumii, PENTIUMPRO, P2, false), | |
965 | ARCH (pentiumiii, PENTIUMPRO, P3, false), | |
966 | ARCH (pentium4, PENTIUM4, P4, false), | |
967 | ARCH (prescott, NOCONA, CORE, false), | |
968 | ARCH (nocona, NOCONA, NOCONA, false), | |
969 | ARCH (yonah, CORE, CORE, true), | |
970 | ARCH (core, CORE, CORE, false), | |
971 | ARCH (merom, CORE2, CORE2, true), | |
972 | ARCH (core2, CORE2, CORE2, false), | |
973 | ARCH (corei7, COREI7, COREI7, false), | |
974 | ARCH (iamcu, IAMCU, IAMCU, false), | |
975 | ARCH (k6, K6, K6, false), | |
976 | ARCH (k6_2, K6, K6_2, false), | |
977 | ARCH (athlon, ATHLON, ATHLON, false), | |
978 | ARCH (sledgehammer, K8, K8, true), | |
979 | ARCH (opteron, K8, K8, false), | |
980 | ARCH (k8, K8, K8, false), | |
981 | ARCH (amdfam10, AMDFAM10, AMDFAM10, false), | |
982 | ARCH (bdver1, BD, BDVER1, false), | |
983 | ARCH (bdver2, BD, BDVER2, false), | |
984 | ARCH (bdver3, BD, BDVER3, false), | |
985 | ARCH (bdver4, BD, BDVER4, false), | |
986 | ARCH (znver1, ZNVER, ZNVER1, false), | |
987 | ARCH (znver2, ZNVER, ZNVER2, false), | |
988 | ARCH (znver3, ZNVER, ZNVER3, false), | |
b0e8fa7f | 989 | ARCH (znver4, ZNVER, ZNVER4, false), |
6ceeed25 JB |
990 | ARCH (btver1, BT, BTVER1, false), |
991 | ARCH (btver2, BT, BTVER2, false), | |
992 | ||
ae89daec JB |
993 | SUBARCH (8087, 8087, ANY_X87, false), |
994 | SUBARCH (87, NONE, ANY_X87, false), /* Disable only! */ | |
995 | SUBARCH (287, 287, ANY_287, false), | |
996 | SUBARCH (387, 387, ANY_387, false), | |
997 | SUBARCH (687, 687, ANY_687, false), | |
998 | SUBARCH (cmov, CMOV, ANY_CMOV, false), | |
999 | SUBARCH (fxsr, FXSR, ANY_FXSR, false), | |
1000 | SUBARCH (mmx, MMX, ANY_MMX, false), | |
1001 | SUBARCH (sse, SSE, ANY_SSE, false), | |
1002 | SUBARCH (sse2, SSE2, ANY_SSE2, false), | |
1003 | SUBARCH (sse3, SSE3, ANY_SSE3, false), | |
1004 | SUBARCH (sse4a, SSE4A, ANY_SSE4A, false), | |
1005 | SUBARCH (ssse3, SSSE3, ANY_SSSE3, false), | |
1006 | SUBARCH (sse4.1, SSE4_1, ANY_SSE4_1, false), | |
1007 | SUBARCH (sse4.2, SSE4_2, ANY_SSE4_2, false), | |
1008 | SUBARCH (sse4, SSE4_2, ANY_SSE4_1, false), | |
1009 | SUBARCH (avx, AVX, ANY_AVX, false), | |
1010 | SUBARCH (avx2, AVX2, ANY_AVX2, false), | |
1011 | SUBARCH (avx512f, AVX512F, ANY_AVX512F, false), | |
1012 | SUBARCH (avx512cd, AVX512CD, ANY_AVX512CD, false), | |
1013 | SUBARCH (avx512er, AVX512ER, ANY_AVX512ER, false), | |
1014 | SUBARCH (avx512pf, AVX512PF, ANY_AVX512PF, false), | |
1015 | SUBARCH (avx512dq, AVX512DQ, ANY_AVX512DQ, false), | |
1016 | SUBARCH (avx512bw, AVX512BW, ANY_AVX512BW, false), | |
1017 | SUBARCH (avx512vl, AVX512VL, ANY_AVX512VL, false), | |
1018 | SUBARCH (vmx, VMX, VMX, false), | |
1019 | SUBARCH (vmfunc, VMFUNC, VMFUNC, false), | |
1020 | SUBARCH (smx, SMX, SMX, false), | |
1021 | SUBARCH (xsave, XSAVE, XSAVE, false), | |
1022 | SUBARCH (xsaveopt, XSAVEOPT, XSAVEOPT, false), | |
1023 | SUBARCH (xsavec, XSAVEC, XSAVEC, false), | |
1024 | SUBARCH (xsaves, XSAVES, XSAVES, false), | |
1025 | SUBARCH (aes, AES, AES, false), | |
1026 | SUBARCH (pclmul, PCLMUL, PCLMUL, false), | |
1027 | SUBARCH (clmul, PCLMUL, PCLMUL, true), | |
1028 | SUBARCH (fsgsbase, FSGSBASE, FSGSBASE, false), | |
1029 | SUBARCH (rdrnd, RDRND, RDRND, false), | |
1030 | SUBARCH (f16c, F16C, F16C, false), | |
1031 | SUBARCH (bmi2, BMI2, BMI2, false), | |
1032 | SUBARCH (fma, FMA, FMA, false), | |
1033 | SUBARCH (fma4, FMA4, FMA4, false), | |
1034 | SUBARCH (xop, XOP, XOP, false), | |
1035 | SUBARCH (lwp, LWP, LWP, false), | |
1036 | SUBARCH (movbe, MOVBE, MOVBE, false), | |
1037 | SUBARCH (cx16, CX16, CX16, false), | |
1038 | SUBARCH (ept, EPT, EPT, false), | |
1039 | SUBARCH (lzcnt, LZCNT, LZCNT, false), | |
1040 | SUBARCH (popcnt, POPCNT, POPCNT, false), | |
1041 | SUBARCH (hle, HLE, HLE, false), | |
1042 | SUBARCH (rtm, RTM, RTM, false), | |
1043 | SUBARCH (invpcid, INVPCID, INVPCID, false), | |
1044 | SUBARCH (clflush, CLFLUSH, CLFLUSH, false), | |
1045 | SUBARCH (nop, NOP, NOP, false), | |
1046 | SUBARCH (syscall, SYSCALL, SYSCALL, false), | |
1047 | SUBARCH (rdtscp, RDTSCP, RDTSCP, false), | |
1048 | SUBARCH (3dnow, 3DNOW, 3DNOW, false), | |
1049 | SUBARCH (3dnowa, 3DNOWA, 3DNOWA, false), | |
1050 | SUBARCH (padlock, PADLOCK, PADLOCK, false), | |
1051 | SUBARCH (pacifica, SVME, SVME, true), | |
1052 | SUBARCH (svme, SVME, SVME, false), | |
ae89daec JB |
1053 | SUBARCH (abm, ABM, ABM, false), |
1054 | SUBARCH (bmi, BMI, BMI, false), | |
1055 | SUBARCH (tbm, TBM, TBM, false), | |
1056 | SUBARCH (adx, ADX, ADX, false), | |
1057 | SUBARCH (rdseed, RDSEED, RDSEED, false), | |
1058 | SUBARCH (prfchw, PRFCHW, PRFCHW, false), | |
1059 | SUBARCH (smap, SMAP, SMAP, false), | |
1060 | SUBARCH (mpx, MPX, MPX, false), | |
1061 | SUBARCH (sha, SHA, SHA, false), | |
1062 | SUBARCH (clflushopt, CLFLUSHOPT, CLFLUSHOPT, false), | |
1063 | SUBARCH (prefetchwt1, PREFETCHWT1, PREFETCHWT1, false), | |
1064 | SUBARCH (se1, SE1, SE1, false), | |
1065 | SUBARCH (clwb, CLWB, CLWB, false), | |
1066 | SUBARCH (avx512ifma, AVX512IFMA, ANY_AVX512IFMA, false), | |
1067 | SUBARCH (avx512vbmi, AVX512VBMI, ANY_AVX512VBMI, false), | |
1068 | SUBARCH (avx512_4fmaps, AVX512_4FMAPS, ANY_AVX512_4FMAPS, false), | |
1069 | SUBARCH (avx512_4vnniw, AVX512_4VNNIW, ANY_AVX512_4VNNIW, false), | |
1070 | SUBARCH (avx512_vpopcntdq, AVX512_VPOPCNTDQ, ANY_AVX512_VPOPCNTDQ, false), | |
1071 | SUBARCH (avx512_vbmi2, AVX512_VBMI2, ANY_AVX512_VBMI2, false), | |
1072 | SUBARCH (avx512_vnni, AVX512_VNNI, ANY_AVX512_VNNI, false), | |
1073 | SUBARCH (avx512_bitalg, AVX512_BITALG, ANY_AVX512_BITALG, false), | |
1074 | SUBARCH (avx_vnni, AVX_VNNI, ANY_AVX_VNNI, false), | |
1075 | SUBARCH (clzero, CLZERO, CLZERO, false), | |
1076 | SUBARCH (mwaitx, MWAITX, MWAITX, false), | |
1077 | SUBARCH (ospke, OSPKE, OSPKE, false), | |
1078 | SUBARCH (rdpid, RDPID, RDPID, false), | |
1079 | SUBARCH (ptwrite, PTWRITE, PTWRITE, false), | |
1080 | SUBARCH (ibt, IBT, ANY_IBT, false), | |
1081 | SUBARCH (shstk, SHSTK, ANY_SHSTK, false), | |
1082 | SUBARCH (gfni, GFNI, GFNI, false), | |
1083 | SUBARCH (vaes, VAES, VAES, false), | |
1084 | SUBARCH (vpclmulqdq, VPCLMULQDQ, VPCLMULQDQ, false), | |
1085 | SUBARCH (wbnoinvd, WBNOINVD, WBNOINVD, false), | |
1086 | SUBARCH (pconfig, PCONFIG, PCONFIG, false), | |
1087 | SUBARCH (waitpkg, WAITPKG, WAITPKG, false), | |
1088 | SUBARCH (cldemote, CLDEMOTE, CLDEMOTE, false), | |
1089 | SUBARCH (amx_int8, AMX_INT8, ANY_AMX_INT8, false), | |
1090 | SUBARCH (amx_bf16, AMX_BF16, ANY_AMX_BF16, false), | |
68830fba | 1091 | SUBARCH (amx_fp16, AMX_FP16, AMX_FP16, false), |
ae89daec JB |
1092 | SUBARCH (amx_tile, AMX_TILE, ANY_AMX_TILE, false), |
1093 | SUBARCH (movdiri, MOVDIRI, ANY_MOVDIRI, false), | |
1094 | SUBARCH (movdir64b, MOVDIR64B, ANY_MOVDIR64B, false), | |
1095 | SUBARCH (avx512_bf16, AVX512_BF16, ANY_AVX512_BF16, false), | |
1096 | SUBARCH (avx512_vp2intersect, AVX512_VP2INTERSECT, | |
1097 | ANY_AVX512_VP2INTERSECT, false), | |
1098 | SUBARCH (tdx, TDX, ANY_TDX, false), | |
1099 | SUBARCH (enqcmd, ENQCMD, ANY_ENQCMD, false), | |
1100 | SUBARCH (serialize, SERIALIZE, ANY_SERIALIZE, false), | |
1101 | SUBARCH (rdpru, RDPRU, RDPRU, false), | |
1102 | SUBARCH (mcommit, MCOMMIT, MCOMMIT, false), | |
1103 | SUBARCH (sev_es, SEV_ES, SEV_ES, false), | |
1104 | SUBARCH (tsxldtrk, TSXLDTRK, ANY_TSXLDTRK, false), | |
1105 | SUBARCH (kl, KL, ANY_KL, false), | |
1106 | SUBARCH (widekl, WIDEKL, ANY_WIDEKL, false), | |
1107 | SUBARCH (uintr, UINTR, ANY_UINTR, false), | |
1108 | SUBARCH (hreset, HRESET, ANY_HRESET, false), | |
1109 | SUBARCH (avx512_fp16, AVX512_FP16, ANY_AVX512_FP16, false), | |
ef07be45 | 1110 | SUBARCH (prefetchi, PREFETCHI, PREFETCHI, false), |
4321af3e | 1111 | SUBARCH (avx_ifma, AVX_IFMA, ANY_AVX_IFMA, false), |
23ae61ad | 1112 | SUBARCH (avx_vnni_int8, AVX_VNNI_INT8, ANY_AVX_VNNI_INT8, false), |
a93e3234 | 1113 | SUBARCH (cmpccxadd, CMPCCXADD, ANY_CMPCCXADD, false), |
941f0833 | 1114 | SUBARCH (wrmsrns, WRMSRNS, ANY_WRMSRNS, false), |
2188d6ea | 1115 | SUBARCH (msrlist, MSRLIST, ANY_MSRLIST, false), |
01d8ce74 | 1116 | SUBARCH (avx_ne_convert, AVX_NE_CONVERT, ANY_AVX_NE_CONVERT, false), |
b06311ad | 1117 | SUBARCH (rao_int, RAO_INT, ANY_RAO_INT, false), |
b0e8fa7f | 1118 | SUBARCH (rmpquery, RMPQUERY, RMPQUERY, false), |
293f5f65 L |
1119 | }; |
1120 | ||
6ceeed25 JB |
1121 | #undef SUBARCH |
1122 | #undef ARCH | |
1123 | ||
704209c0 | 1124 | #ifdef I386COFF |
a6c24e68 NC |
1125 | /* Like s_lcomm_internal in gas/read.c but the alignment string |
1126 | is allowed to be optional. */ | |
1127 | ||
1128 | static symbolS * | |
1129 | pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size) | |
1130 | { | |
1131 | addressT align = 0; | |
1132 | ||
1133 | SKIP_WHITESPACE (); | |
1134 | ||
7ab9ffdd | 1135 | if (needs_align |
a6c24e68 NC |
1136 | && *input_line_pointer == ',') |
1137 | { | |
1138 | align = parse_align (needs_align - 1); | |
7ab9ffdd | 1139 | |
a6c24e68 NC |
1140 | if (align == (addressT) -1) |
1141 | return NULL; | |
1142 | } | |
1143 | else | |
1144 | { | |
1145 | if (size >= 8) | |
1146 | align = 3; | |
1147 | else if (size >= 4) | |
1148 | align = 2; | |
1149 | else if (size >= 2) | |
1150 | align = 1; | |
1151 | else | |
1152 | align = 0; | |
1153 | } | |
1154 | ||
1155 | bss_alloc (symbolP, size, align); | |
1156 | return symbolP; | |
1157 | } | |
1158 | ||
704209c0 | 1159 | static void |
a6c24e68 NC |
1160 | pe_lcomm (int needs_align) |
1161 | { | |
1162 | s_comm_internal (needs_align * 2, pe_lcomm_internal); | |
1163 | } | |
704209c0 | 1164 | #endif |
a6c24e68 | 1165 | |
29b0f896 AM |
1166 | const pseudo_typeS md_pseudo_table[] = |
1167 | { | |
1168 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
1169 | {"align", s_align_bytes, 0}, | |
1170 | #else | |
1171 | {"align", s_align_ptwo, 0}, | |
1172 | #endif | |
1173 | {"arch", set_cpu_arch, 0}, | |
1174 | #ifndef I386COFF | |
1175 | {"bss", s_bss, 0}, | |
a6c24e68 NC |
1176 | #else |
1177 | {"lcomm", pe_lcomm, 1}, | |
29b0f896 AM |
1178 | #endif |
1179 | {"ffloat", float_cons, 'f'}, | |
1180 | {"dfloat", float_cons, 'd'}, | |
1181 | {"tfloat", float_cons, 'x'}, | |
7d19d096 | 1182 | {"hfloat", float_cons, 'h'}, |
de133cf9 | 1183 | {"bfloat16", float_cons, 'b'}, |
29b0f896 | 1184 | {"value", cons, 2}, |
d182319b | 1185 | {"slong", signed_cons, 4}, |
29b0f896 AM |
1186 | {"noopt", s_ignore, 0}, |
1187 | {"optim", s_ignore, 0}, | |
1188 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
1189 | {"code16", set_code_flag, CODE_16BIT}, | |
1190 | {"code32", set_code_flag, CODE_32BIT}, | |
da5f19a2 | 1191 | #ifdef BFD64 |
29b0f896 | 1192 | {"code64", set_code_flag, CODE_64BIT}, |
da5f19a2 | 1193 | #endif |
29b0f896 AM |
1194 | {"intel_syntax", set_intel_syntax, 1}, |
1195 | {"att_syntax", set_intel_syntax, 0}, | |
1efbbeb4 L |
1196 | {"intel_mnemonic", set_intel_mnemonic, 1}, |
1197 | {"att_mnemonic", set_intel_mnemonic, 0}, | |
db51cc60 L |
1198 | {"allow_index_reg", set_allow_index_reg, 1}, |
1199 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
7bab8ab5 JB |
1200 | {"sse_check", set_check, 0}, |
1201 | {"operand_check", set_check, 1}, | |
3b22753a L |
1202 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1203 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 1204 | #else |
68d20676 | 1205 | {"file", dwarf2_directive_file, 0}, |
07a53e5c RH |
1206 | {"loc", dwarf2_directive_loc, 0}, |
1207 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 1208 | #endif |
6482c264 NC |
1209 | #ifdef TE_PE |
1210 | {"secrel32", pe_directive_secrel, 0}, | |
145667f8 | 1211 | {"secidx", pe_directive_secidx, 0}, |
6482c264 | 1212 | #endif |
29b0f896 AM |
1213 | {0, 0, 0} |
1214 | }; | |
1215 | ||
1216 | /* For interface with expression (). */ | |
1217 | extern char *input_line_pointer; | |
1218 | ||
1219 | /* Hash table for instruction mnemonic lookup. */ | |
629310ab | 1220 | static htab_t op_hash; |
29b0f896 AM |
1221 | |
1222 | /* Hash table for register lookup. */ | |
629310ab | 1223 | static htab_t reg_hash; |
29b0f896 | 1224 | \f |
ce8a8b2f AM |
1225 | /* Various efficient no-op patterns for aligning code labels. |
1226 | Note: Don't try to assemble the instructions in the comments. | |
1227 | 0L and 0w are not legal. */ | |
62a02d25 L |
1228 | static const unsigned char f32_1[] = |
1229 | {0x90}; /* nop */ | |
1230 | static const unsigned char f32_2[] = | |
1231 | {0x66,0x90}; /* xchg %ax,%ax */ | |
1232 | static const unsigned char f32_3[] = | |
1233 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
1234 | static const unsigned char f32_4[] = | |
1235 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
62a02d25 L |
1236 | static const unsigned char f32_6[] = |
1237 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
1238 | static const unsigned char f32_7[] = | |
1239 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
62a02d25 | 1240 | static const unsigned char f16_3[] = |
3ae729d5 | 1241 | {0x8d,0x74,0x00}; /* lea 0(%si),%si */ |
62a02d25 | 1242 | static const unsigned char f16_4[] = |
3ae729d5 L |
1243 | {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */ |
1244 | static const unsigned char jump_disp8[] = | |
1245 | {0xeb}; /* jmp disp8 */ | |
1246 | static const unsigned char jump32_disp32[] = | |
1247 | {0xe9}; /* jmp disp32 */ | |
1248 | static const unsigned char jump16_disp32[] = | |
1249 | {0x66,0xe9}; /* jmp disp32 */ | |
62a02d25 L |
1250 | /* 32-bit NOPs patterns. */ |
1251 | static const unsigned char *const f32_patt[] = { | |
3ae729d5 | 1252 | f32_1, f32_2, f32_3, f32_4, NULL, f32_6, f32_7 |
62a02d25 L |
1253 | }; |
1254 | /* 16-bit NOPs patterns. */ | |
1255 | static const unsigned char *const f16_patt[] = { | |
3ae729d5 | 1256 | f32_1, f32_2, f16_3, f16_4 |
62a02d25 L |
1257 | }; |
1258 | /* nopl (%[re]ax) */ | |
1259 | static const unsigned char alt_3[] = | |
1260 | {0x0f,0x1f,0x00}; | |
1261 | /* nopl 0(%[re]ax) */ | |
1262 | static const unsigned char alt_4[] = | |
1263 | {0x0f,0x1f,0x40,0x00}; | |
1264 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
1265 | static const unsigned char alt_5[] = | |
1266 | {0x0f,0x1f,0x44,0x00,0x00}; | |
1267 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
1268 | static const unsigned char alt_6[] = | |
1269 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
1270 | /* nopl 0L(%[re]ax) */ | |
1271 | static const unsigned char alt_7[] = | |
1272 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
1273 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
1274 | static const unsigned char alt_8[] = | |
1275 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1276 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
1277 | static const unsigned char alt_9[] = | |
1278 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1279 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
1280 | static const unsigned char alt_10[] = | |
1281 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
3ae729d5 L |
1282 | /* data16 nopw %cs:0L(%eax,%eax,1) */ |
1283 | static const unsigned char alt_11[] = | |
1284 | {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
62a02d25 L |
1285 | /* 32-bit and 64-bit NOPs patterns. */ |
1286 | static const unsigned char *const alt_patt[] = { | |
1287 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
3ae729d5 | 1288 | alt_9, alt_10, alt_11 |
62a02d25 L |
1289 | }; |
1290 | ||
1291 | /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum | |
1292 | size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */ | |
1293 | ||
1294 | static void | |
1295 | i386_output_nops (char *where, const unsigned char *const *patt, | |
1296 | int count, int max_single_nop_size) | |
1297 | ||
1298 | { | |
3ae729d5 L |
1299 | /* Place the longer NOP first. */ |
1300 | int last; | |
1301 | int offset; | |
3076e594 NC |
1302 | const unsigned char *nops; |
1303 | ||
1304 | if (max_single_nop_size < 1) | |
1305 | { | |
1306 | as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"), | |
1307 | max_single_nop_size); | |
1308 | return; | |
1309 | } | |
1310 | ||
1311 | nops = patt[max_single_nop_size - 1]; | |
3ae729d5 L |
1312 | |
1313 | /* Use the smaller one if the requsted one isn't available. */ | |
1314 | if (nops == NULL) | |
62a02d25 | 1315 | { |
3ae729d5 L |
1316 | max_single_nop_size--; |
1317 | nops = patt[max_single_nop_size - 1]; | |
62a02d25 L |
1318 | } |
1319 | ||
3ae729d5 L |
1320 | last = count % max_single_nop_size; |
1321 | ||
1322 | count -= last; | |
1323 | for (offset = 0; offset < count; offset += max_single_nop_size) | |
1324 | memcpy (where + offset, nops, max_single_nop_size); | |
1325 | ||
1326 | if (last) | |
1327 | { | |
1328 | nops = patt[last - 1]; | |
1329 | if (nops == NULL) | |
1330 | { | |
1331 | /* Use the smaller one plus one-byte NOP if the needed one | |
1332 | isn't available. */ | |
1333 | last--; | |
1334 | nops = patt[last - 1]; | |
1335 | memcpy (where + offset, nops, last); | |
1336 | where[offset + last] = *patt[0]; | |
1337 | } | |
1338 | else | |
1339 | memcpy (where + offset, nops, last); | |
1340 | } | |
62a02d25 L |
1341 | } |
1342 | ||
3ae729d5 L |
1343 | static INLINE int |
1344 | fits_in_imm7 (offsetT num) | |
1345 | { | |
1346 | return (num & 0x7f) == num; | |
1347 | } | |
1348 | ||
1349 | static INLINE int | |
1350 | fits_in_imm31 (offsetT num) | |
1351 | { | |
1352 | return (num & 0x7fffffff) == num; | |
1353 | } | |
62a02d25 L |
1354 | |
1355 | /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a | |
1356 | single NOP instruction LIMIT. */ | |
1357 | ||
1358 | void | |
3ae729d5 | 1359 | i386_generate_nops (fragS *fragP, char *where, offsetT count, int limit) |
62a02d25 | 1360 | { |
3ae729d5 | 1361 | const unsigned char *const *patt = NULL; |
62a02d25 | 1362 | int max_single_nop_size; |
3ae729d5 L |
1363 | /* Maximum number of NOPs before switching to jump over NOPs. */ |
1364 | int max_number_of_nops; | |
62a02d25 | 1365 | |
3ae729d5 | 1366 | switch (fragP->fr_type) |
62a02d25 | 1367 | { |
3ae729d5 L |
1368 | case rs_fill_nop: |
1369 | case rs_align_code: | |
1370 | break; | |
e379e5f3 L |
1371 | case rs_machine_dependent: |
1372 | /* Allow NOP padding for jumps and calls. */ | |
1373 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
1374 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
1375 | break; | |
1376 | /* Fall through. */ | |
3ae729d5 | 1377 | default: |
62a02d25 L |
1378 | return; |
1379 | } | |
1380 | ||
ccc9c027 L |
1381 | /* We need to decide which NOP sequence to use for 32bit and |
1382 | 64bit. When -mtune= is used: | |
4eed87de | 1383 | |
76bc74dc L |
1384 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
1385 | PROCESSOR_GENERIC32, f32_patt will be used. | |
80b8656c L |
1386 | 2. For the rest, alt_patt will be used. |
1387 | ||
1388 | When -mtune= isn't used, alt_patt will be used if | |
22109423 | 1389 | cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will |
76bc74dc | 1390 | be used. |
ccc9c027 L |
1391 | |
1392 | When -march= or .arch is used, we can't use anything beyond | |
1393 | cpu_arch_isa_flags. */ | |
1394 | ||
1395 | if (flag_code == CODE_16BIT) | |
1396 | { | |
3ae729d5 L |
1397 | patt = f16_patt; |
1398 | max_single_nop_size = sizeof (f16_patt) / sizeof (f16_patt[0]); | |
1399 | /* Limit number of NOPs to 2 in 16-bit mode. */ | |
1400 | max_number_of_nops = 2; | |
252b5132 | 1401 | } |
33fef721 | 1402 | else |
ccc9c027 | 1403 | { |
fbf3f584 | 1404 | if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN) |
ccc9c027 L |
1405 | { |
1406 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
1407 | switch (cpu_arch_tune) | |
1408 | { | |
1409 | case PROCESSOR_UNKNOWN: | |
1410 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
22109423 L |
1411 | optimize with nops. */ |
1412 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1413 | patt = alt_patt; |
ccc9c027 L |
1414 | else |
1415 | patt = f32_patt; | |
1416 | break; | |
ccc9c027 L |
1417 | case PROCESSOR_PENTIUM4: |
1418 | case PROCESSOR_NOCONA: | |
ef05d495 | 1419 | case PROCESSOR_CORE: |
76bc74dc | 1420 | case PROCESSOR_CORE2: |
bd5295b2 | 1421 | case PROCESSOR_COREI7: |
76bc74dc | 1422 | case PROCESSOR_GENERIC64: |
ccc9c027 L |
1423 | case PROCESSOR_K6: |
1424 | case PROCESSOR_ATHLON: | |
1425 | case PROCESSOR_K8: | |
4eed87de | 1426 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1427 | case PROCESSOR_BD: |
029f3522 | 1428 | case PROCESSOR_ZNVER: |
7b458c12 | 1429 | case PROCESSOR_BT: |
80b8656c | 1430 | patt = alt_patt; |
ccc9c027 | 1431 | break; |
76bc74dc | 1432 | case PROCESSOR_I386: |
ccc9c027 L |
1433 | case PROCESSOR_I486: |
1434 | case PROCESSOR_PENTIUM: | |
2dde1948 | 1435 | case PROCESSOR_PENTIUMPRO: |
81486035 | 1436 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1437 | case PROCESSOR_GENERIC32: |
1438 | patt = f32_patt; | |
1439 | break; | |
c368d2a8 JB |
1440 | case PROCESSOR_NONE: |
1441 | abort (); | |
4eed87de | 1442 | } |
ccc9c027 L |
1443 | } |
1444 | else | |
1445 | { | |
fbf3f584 | 1446 | switch (fragP->tc_frag_data.tune) |
ccc9c027 L |
1447 | { |
1448 | case PROCESSOR_UNKNOWN: | |
e6a14101 | 1449 | /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be |
ccc9c027 L |
1450 | PROCESSOR_UNKNOWN. */ |
1451 | abort (); | |
1452 | break; | |
1453 | ||
76bc74dc | 1454 | case PROCESSOR_I386: |
ccc9c027 L |
1455 | case PROCESSOR_I486: |
1456 | case PROCESSOR_PENTIUM: | |
81486035 | 1457 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1458 | case PROCESSOR_K6: |
1459 | case PROCESSOR_ATHLON: | |
1460 | case PROCESSOR_K8: | |
4eed87de | 1461 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1462 | case PROCESSOR_BD: |
029f3522 | 1463 | case PROCESSOR_ZNVER: |
7b458c12 | 1464 | case PROCESSOR_BT: |
ccc9c027 L |
1465 | case PROCESSOR_GENERIC32: |
1466 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
22109423 L |
1467 | with nops. */ |
1468 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1469 | patt = alt_patt; |
ccc9c027 L |
1470 | else |
1471 | patt = f32_patt; | |
1472 | break; | |
76bc74dc L |
1473 | case PROCESSOR_PENTIUMPRO: |
1474 | case PROCESSOR_PENTIUM4: | |
1475 | case PROCESSOR_NOCONA: | |
1476 | case PROCESSOR_CORE: | |
ef05d495 | 1477 | case PROCESSOR_CORE2: |
bd5295b2 | 1478 | case PROCESSOR_COREI7: |
22109423 | 1479 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) |
80b8656c | 1480 | patt = alt_patt; |
ccc9c027 L |
1481 | else |
1482 | patt = f32_patt; | |
1483 | break; | |
1484 | case PROCESSOR_GENERIC64: | |
80b8656c | 1485 | patt = alt_patt; |
ccc9c027 | 1486 | break; |
c368d2a8 JB |
1487 | case PROCESSOR_NONE: |
1488 | abort (); | |
4eed87de | 1489 | } |
ccc9c027 L |
1490 | } |
1491 | ||
76bc74dc L |
1492 | if (patt == f32_patt) |
1493 | { | |
3ae729d5 L |
1494 | max_single_nop_size = sizeof (f32_patt) / sizeof (f32_patt[0]); |
1495 | /* Limit number of NOPs to 2 for older processors. */ | |
1496 | max_number_of_nops = 2; | |
76bc74dc L |
1497 | } |
1498 | else | |
1499 | { | |
3ae729d5 L |
1500 | max_single_nop_size = sizeof (alt_patt) / sizeof (alt_patt[0]); |
1501 | /* Limit number of NOPs to 7 for newer processors. */ | |
1502 | max_number_of_nops = 7; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | if (limit == 0) | |
1507 | limit = max_single_nop_size; | |
1508 | ||
1509 | if (fragP->fr_type == rs_fill_nop) | |
1510 | { | |
1511 | /* Output NOPs for .nop directive. */ | |
1512 | if (limit > max_single_nop_size) | |
1513 | { | |
1514 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1515 | _("invalid single nop size: %d " | |
1516 | "(expect within [0, %d])"), | |
1517 | limit, max_single_nop_size); | |
1518 | return; | |
1519 | } | |
1520 | } | |
e379e5f3 | 1521 | else if (fragP->fr_type != rs_machine_dependent) |
3ae729d5 L |
1522 | fragP->fr_var = count; |
1523 | ||
1524 | if ((count / max_single_nop_size) > max_number_of_nops) | |
1525 | { | |
1526 | /* Generate jump over NOPs. */ | |
1527 | offsetT disp = count - 2; | |
1528 | if (fits_in_imm7 (disp)) | |
1529 | { | |
1530 | /* Use "jmp disp8" if possible. */ | |
1531 | count = disp; | |
1532 | where[0] = jump_disp8[0]; | |
1533 | where[1] = count; | |
1534 | where += 2; | |
1535 | } | |
1536 | else | |
1537 | { | |
1538 | unsigned int size_of_jump; | |
1539 | ||
1540 | if (flag_code == CODE_16BIT) | |
1541 | { | |
1542 | where[0] = jump16_disp32[0]; | |
1543 | where[1] = jump16_disp32[1]; | |
1544 | size_of_jump = 2; | |
1545 | } | |
1546 | else | |
1547 | { | |
1548 | where[0] = jump32_disp32[0]; | |
1549 | size_of_jump = 1; | |
1550 | } | |
1551 | ||
1552 | count -= size_of_jump + 4; | |
1553 | if (!fits_in_imm31 (count)) | |
1554 | { | |
1555 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1556 | _("jump over nop padding out of range")); | |
1557 | return; | |
1558 | } | |
1559 | ||
1560 | md_number_to_chars (where + size_of_jump, count, 4); | |
1561 | where += size_of_jump + 4; | |
76bc74dc | 1562 | } |
ccc9c027 | 1563 | } |
3ae729d5 L |
1564 | |
1565 | /* Generate multiple NOPs. */ | |
1566 | i386_output_nops (where, patt, count, limit); | |
252b5132 RH |
1567 | } |
1568 | ||
c6fb90c8 | 1569 | static INLINE int |
0dfbf9d7 | 1570 | operand_type_all_zero (const union i386_operand_type *x) |
40fb9820 | 1571 | { |
0dfbf9d7 | 1572 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1573 | { |
1574 | case 3: | |
0dfbf9d7 | 1575 | if (x->array[2]) |
c6fb90c8 | 1576 | return 0; |
1a0670f3 | 1577 | /* Fall through. */ |
c6fb90c8 | 1578 | case 2: |
0dfbf9d7 | 1579 | if (x->array[1]) |
c6fb90c8 | 1580 | return 0; |
1a0670f3 | 1581 | /* Fall through. */ |
c6fb90c8 | 1582 | case 1: |
0dfbf9d7 | 1583 | return !x->array[0]; |
c6fb90c8 L |
1584 | default: |
1585 | abort (); | |
1586 | } | |
40fb9820 L |
1587 | } |
1588 | ||
c6fb90c8 | 1589 | static INLINE void |
0dfbf9d7 | 1590 | operand_type_set (union i386_operand_type *x, unsigned int v) |
40fb9820 | 1591 | { |
0dfbf9d7 | 1592 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1593 | { |
1594 | case 3: | |
0dfbf9d7 | 1595 | x->array[2] = v; |
1a0670f3 | 1596 | /* Fall through. */ |
c6fb90c8 | 1597 | case 2: |
0dfbf9d7 | 1598 | x->array[1] = v; |
1a0670f3 | 1599 | /* Fall through. */ |
c6fb90c8 | 1600 | case 1: |
0dfbf9d7 | 1601 | x->array[0] = v; |
1a0670f3 | 1602 | /* Fall through. */ |
c6fb90c8 L |
1603 | break; |
1604 | default: | |
1605 | abort (); | |
1606 | } | |
bab6aec1 JB |
1607 | |
1608 | x->bitfield.class = ClassNone; | |
75e5731b | 1609 | x->bitfield.instance = InstanceNone; |
c6fb90c8 | 1610 | } |
40fb9820 | 1611 | |
c6fb90c8 | 1612 | static INLINE int |
0dfbf9d7 L |
1613 | operand_type_equal (const union i386_operand_type *x, |
1614 | const union i386_operand_type *y) | |
c6fb90c8 | 1615 | { |
0dfbf9d7 | 1616 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1617 | { |
1618 | case 3: | |
0dfbf9d7 | 1619 | if (x->array[2] != y->array[2]) |
c6fb90c8 | 1620 | return 0; |
1a0670f3 | 1621 | /* Fall through. */ |
c6fb90c8 | 1622 | case 2: |
0dfbf9d7 | 1623 | if (x->array[1] != y->array[1]) |
c6fb90c8 | 1624 | return 0; |
1a0670f3 | 1625 | /* Fall through. */ |
c6fb90c8 | 1626 | case 1: |
0dfbf9d7 | 1627 | return x->array[0] == y->array[0]; |
c6fb90c8 L |
1628 | break; |
1629 | default: | |
1630 | abort (); | |
1631 | } | |
1632 | } | |
40fb9820 | 1633 | |
0dfbf9d7 L |
1634 | static INLINE int |
1635 | cpu_flags_all_zero (const union i386_cpu_flags *x) | |
1636 | { | |
1637 | switch (ARRAY_SIZE(x->array)) | |
1638 | { | |
75f8266a KL |
1639 | case 5: |
1640 | if (x->array[4]) | |
1641 | return 0; | |
1642 | /* Fall through. */ | |
53467f57 IT |
1643 | case 4: |
1644 | if (x->array[3]) | |
1645 | return 0; | |
1646 | /* Fall through. */ | |
0dfbf9d7 L |
1647 | case 3: |
1648 | if (x->array[2]) | |
1649 | return 0; | |
1a0670f3 | 1650 | /* Fall through. */ |
0dfbf9d7 L |
1651 | case 2: |
1652 | if (x->array[1]) | |
1653 | return 0; | |
1a0670f3 | 1654 | /* Fall through. */ |
0dfbf9d7 L |
1655 | case 1: |
1656 | return !x->array[0]; | |
1657 | default: | |
1658 | abort (); | |
1659 | } | |
1660 | } | |
1661 | ||
0dfbf9d7 L |
1662 | static INLINE int |
1663 | cpu_flags_equal (const union i386_cpu_flags *x, | |
1664 | const union i386_cpu_flags *y) | |
1665 | { | |
1666 | switch (ARRAY_SIZE(x->array)) | |
1667 | { | |
75f8266a KL |
1668 | case 5: |
1669 | if (x->array[4] != y->array[4]) | |
1670 | return 0; | |
1671 | /* Fall through. */ | |
53467f57 IT |
1672 | case 4: |
1673 | if (x->array[3] != y->array[3]) | |
1674 | return 0; | |
1675 | /* Fall through. */ | |
0dfbf9d7 L |
1676 | case 3: |
1677 | if (x->array[2] != y->array[2]) | |
1678 | return 0; | |
1a0670f3 | 1679 | /* Fall through. */ |
0dfbf9d7 L |
1680 | case 2: |
1681 | if (x->array[1] != y->array[1]) | |
1682 | return 0; | |
1a0670f3 | 1683 | /* Fall through. */ |
0dfbf9d7 L |
1684 | case 1: |
1685 | return x->array[0] == y->array[0]; | |
1686 | break; | |
1687 | default: | |
1688 | abort (); | |
1689 | } | |
1690 | } | |
c6fb90c8 L |
1691 | |
1692 | static INLINE int | |
1693 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
1694 | { | |
1695 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
1696 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
1697 | } |
1698 | ||
c6fb90c8 L |
1699 | static INLINE i386_cpu_flags |
1700 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1701 | { |
c6fb90c8 L |
1702 | switch (ARRAY_SIZE (x.array)) |
1703 | { | |
75f8266a KL |
1704 | case 5: |
1705 | x.array [4] &= y.array [4]; | |
1706 | /* Fall through. */ | |
53467f57 IT |
1707 | case 4: |
1708 | x.array [3] &= y.array [3]; | |
1709 | /* Fall through. */ | |
c6fb90c8 L |
1710 | case 3: |
1711 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1712 | /* Fall through. */ |
c6fb90c8 L |
1713 | case 2: |
1714 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1715 | /* Fall through. */ |
c6fb90c8 L |
1716 | case 1: |
1717 | x.array [0] &= y.array [0]; | |
1718 | break; | |
1719 | default: | |
1720 | abort (); | |
1721 | } | |
1722 | return x; | |
1723 | } | |
40fb9820 | 1724 | |
c6fb90c8 L |
1725 | static INLINE i386_cpu_flags |
1726 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1727 | { |
c6fb90c8 | 1728 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1729 | { |
75f8266a KL |
1730 | case 5: |
1731 | x.array [4] |= y.array [4]; | |
1732 | /* Fall through. */ | |
53467f57 IT |
1733 | case 4: |
1734 | x.array [3] |= y.array [3]; | |
1735 | /* Fall through. */ | |
c6fb90c8 L |
1736 | case 3: |
1737 | x.array [2] |= y.array [2]; | |
1a0670f3 | 1738 | /* Fall through. */ |
c6fb90c8 L |
1739 | case 2: |
1740 | x.array [1] |= y.array [1]; | |
1a0670f3 | 1741 | /* Fall through. */ |
c6fb90c8 L |
1742 | case 1: |
1743 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1744 | break; |
1745 | default: | |
1746 | abort (); | |
1747 | } | |
40fb9820 L |
1748 | return x; |
1749 | } | |
1750 | ||
309d3373 JB |
1751 | static INLINE i386_cpu_flags |
1752 | cpu_flags_and_not (i386_cpu_flags x, i386_cpu_flags y) | |
1753 | { | |
1754 | switch (ARRAY_SIZE (x.array)) | |
1755 | { | |
75f8266a KL |
1756 | case 5: |
1757 | x.array [4] &= ~y.array [4]; | |
1758 | /* Fall through. */ | |
53467f57 IT |
1759 | case 4: |
1760 | x.array [3] &= ~y.array [3]; | |
1761 | /* Fall through. */ | |
309d3373 JB |
1762 | case 3: |
1763 | x.array [2] &= ~y.array [2]; | |
1a0670f3 | 1764 | /* Fall through. */ |
309d3373 JB |
1765 | case 2: |
1766 | x.array [1] &= ~y.array [1]; | |
1a0670f3 | 1767 | /* Fall through. */ |
309d3373 JB |
1768 | case 1: |
1769 | x.array [0] &= ~y.array [0]; | |
1770 | break; | |
1771 | default: | |
1772 | abort (); | |
1773 | } | |
1774 | return x; | |
1775 | } | |
1776 | ||
6c0946d0 JB |
1777 | static const i386_cpu_flags avx512 = CPU_ANY_AVX512F_FLAGS; |
1778 | ||
c0f3af97 L |
1779 | #define CPU_FLAGS_ARCH_MATCH 0x1 |
1780 | #define CPU_FLAGS_64BIT_MATCH 0x2 | |
1781 | ||
c0f3af97 | 1782 | #define CPU_FLAGS_PERFECT_MATCH \ |
db12e14e | 1783 | (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH) |
c0f3af97 L |
1784 | |
1785 | /* Return CPU flags match bits. */ | |
3629bb00 | 1786 | |
40fb9820 | 1787 | static int |
d3ce72d0 | 1788 | cpu_flags_match (const insn_template *t) |
40fb9820 | 1789 | { |
c0f3af97 L |
1790 | i386_cpu_flags x = t->cpu_flags; |
1791 | int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0; | |
40fb9820 L |
1792 | |
1793 | x.bitfield.cpu64 = 0; | |
1794 | x.bitfield.cpuno64 = 0; | |
1795 | ||
0dfbf9d7 | 1796 | if (cpu_flags_all_zero (&x)) |
c0f3af97 L |
1797 | { |
1798 | /* This instruction is available on all archs. */ | |
db12e14e | 1799 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1800 | } |
3629bb00 L |
1801 | else |
1802 | { | |
c0f3af97 | 1803 | /* This instruction is available only on some archs. */ |
3629bb00 L |
1804 | i386_cpu_flags cpu = cpu_arch_flags; |
1805 | ||
ab592e75 JB |
1806 | /* AVX512VL is no standalone feature - match it and then strip it. */ |
1807 | if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl) | |
1808 | return match; | |
1809 | x.bitfield.cpuavx512vl = 0; | |
1810 | ||
22c36940 JB |
1811 | /* AVX and AVX2 present at the same time express an operand size |
1812 | dependency - strip AVX2 for the purposes here. The operand size | |
1813 | dependent check occurs in check_vecOperands(). */ | |
1814 | if (x.bitfield.cpuavx && x.bitfield.cpuavx2) | |
1815 | x.bitfield.cpuavx2 = 0; | |
1816 | ||
3629bb00 | 1817 | cpu = cpu_flags_and (x, cpu); |
c0f3af97 L |
1818 | if (!cpu_flags_all_zero (&cpu)) |
1819 | { | |
57392598 | 1820 | if (x.bitfield.cpuavx) |
a5ff0eb2 | 1821 | { |
929f69fa | 1822 | /* We need to check a few extra flags with AVX. */ |
b9d49817 | 1823 | if (cpu.bitfield.cpuavx |
40d231b4 JB |
1824 | && (!t->opcode_modifier.sse2avx |
1825 | || (sse2avx && !i.prefix[DATA_PREFIX])) | |
b9d49817 | 1826 | && (!x.bitfield.cpuaes || cpu.bitfield.cpuaes) |
929f69fa | 1827 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) |
b9d49817 JB |
1828 | && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul)) |
1829 | match |= CPU_FLAGS_ARCH_MATCH; | |
a5ff0eb2 | 1830 | } |
929f69fa JB |
1831 | else if (x.bitfield.cpuavx512f) |
1832 | { | |
1833 | /* We need to check a few extra flags with AVX512F. */ | |
1834 | if (cpu.bitfield.cpuavx512f | |
1835 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) | |
1836 | && (!x.bitfield.cpuvaes || cpu.bitfield.cpuvaes) | |
1837 | && (!x.bitfield.cpuvpclmulqdq || cpu.bitfield.cpuvpclmulqdq)) | |
1838 | match |= CPU_FLAGS_ARCH_MATCH; | |
1839 | } | |
a5ff0eb2 | 1840 | else |
db12e14e | 1841 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1842 | } |
3629bb00 | 1843 | } |
c0f3af97 | 1844 | return match; |
40fb9820 L |
1845 | } |
1846 | ||
c6fb90c8 L |
1847 | static INLINE i386_operand_type |
1848 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1849 | { |
bab6aec1 JB |
1850 | if (x.bitfield.class != y.bitfield.class) |
1851 | x.bitfield.class = ClassNone; | |
75e5731b JB |
1852 | if (x.bitfield.instance != y.bitfield.instance) |
1853 | x.bitfield.instance = InstanceNone; | |
bab6aec1 | 1854 | |
c6fb90c8 L |
1855 | switch (ARRAY_SIZE (x.array)) |
1856 | { | |
1857 | case 3: | |
1858 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1859 | /* Fall through. */ |
c6fb90c8 L |
1860 | case 2: |
1861 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1862 | /* Fall through. */ |
c6fb90c8 L |
1863 | case 1: |
1864 | x.array [0] &= y.array [0]; | |
1865 | break; | |
1866 | default: | |
1867 | abort (); | |
1868 | } | |
1869 | return x; | |
40fb9820 L |
1870 | } |
1871 | ||
73053c1f JB |
1872 | static INLINE i386_operand_type |
1873 | operand_type_and_not (i386_operand_type x, i386_operand_type y) | |
1874 | { | |
bab6aec1 | 1875 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 1876 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 1877 | |
73053c1f JB |
1878 | switch (ARRAY_SIZE (x.array)) |
1879 | { | |
1880 | case 3: | |
1881 | x.array [2] &= ~y.array [2]; | |
1882 | /* Fall through. */ | |
1883 | case 2: | |
1884 | x.array [1] &= ~y.array [1]; | |
1885 | /* Fall through. */ | |
1886 | case 1: | |
1887 | x.array [0] &= ~y.array [0]; | |
1888 | break; | |
1889 | default: | |
1890 | abort (); | |
1891 | } | |
1892 | return x; | |
1893 | } | |
1894 | ||
c6fb90c8 L |
1895 | static INLINE i386_operand_type |
1896 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1897 | { |
bab6aec1 JB |
1898 | gas_assert (x.bitfield.class == ClassNone || |
1899 | y.bitfield.class == ClassNone || | |
1900 | x.bitfield.class == y.bitfield.class); | |
75e5731b JB |
1901 | gas_assert (x.bitfield.instance == InstanceNone || |
1902 | y.bitfield.instance == InstanceNone || | |
1903 | x.bitfield.instance == y.bitfield.instance); | |
bab6aec1 | 1904 | |
c6fb90c8 | 1905 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1906 | { |
c6fb90c8 L |
1907 | case 3: |
1908 | x.array [2] |= y.array [2]; | |
1a0670f3 | 1909 | /* Fall through. */ |
c6fb90c8 L |
1910 | case 2: |
1911 | x.array [1] |= y.array [1]; | |
1a0670f3 | 1912 | /* Fall through. */ |
c6fb90c8 L |
1913 | case 1: |
1914 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1915 | break; |
1916 | default: | |
1917 | abort (); | |
1918 | } | |
c6fb90c8 L |
1919 | return x; |
1920 | } | |
40fb9820 | 1921 | |
c6fb90c8 L |
1922 | static INLINE i386_operand_type |
1923 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
1924 | { | |
bab6aec1 | 1925 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 1926 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 1927 | |
c6fb90c8 L |
1928 | switch (ARRAY_SIZE (x.array)) |
1929 | { | |
1930 | case 3: | |
1931 | x.array [2] ^= y.array [2]; | |
1a0670f3 | 1932 | /* Fall through. */ |
c6fb90c8 L |
1933 | case 2: |
1934 | x.array [1] ^= y.array [1]; | |
1a0670f3 | 1935 | /* Fall through. */ |
c6fb90c8 L |
1936 | case 1: |
1937 | x.array [0] ^= y.array [0]; | |
1938 | break; | |
1939 | default: | |
1940 | abort (); | |
1941 | } | |
40fb9820 L |
1942 | return x; |
1943 | } | |
1944 | ||
40fb9820 | 1945 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; |
bab6aec1 | 1946 | static const i386_operand_type anydisp = OPERAND_TYPE_ANYDISP; |
40fb9820 | 1947 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
40fb9820 L |
1948 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; |
1949 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
1950 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
40fb9820 L |
1951 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; |
1952 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
1953 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
1954 | ||
1955 | enum operand_type | |
1956 | { | |
1957 | reg, | |
40fb9820 L |
1958 | imm, |
1959 | disp, | |
1960 | anymem | |
1961 | }; | |
1962 | ||
c6fb90c8 | 1963 | static INLINE int |
40fb9820 L |
1964 | operand_type_check (i386_operand_type t, enum operand_type c) |
1965 | { | |
1966 | switch (c) | |
1967 | { | |
1968 | case reg: | |
bab6aec1 | 1969 | return t.bitfield.class == Reg; |
40fb9820 | 1970 | |
40fb9820 L |
1971 | case imm: |
1972 | return (t.bitfield.imm8 | |
1973 | || t.bitfield.imm8s | |
1974 | || t.bitfield.imm16 | |
1975 | || t.bitfield.imm32 | |
1976 | || t.bitfield.imm32s | |
1977 | || t.bitfield.imm64); | |
1978 | ||
1979 | case disp: | |
1980 | return (t.bitfield.disp8 | |
1981 | || t.bitfield.disp16 | |
1982 | || t.bitfield.disp32 | |
40fb9820 L |
1983 | || t.bitfield.disp64); |
1984 | ||
1985 | case anymem: | |
1986 | return (t.bitfield.disp8 | |
1987 | || t.bitfield.disp16 | |
1988 | || t.bitfield.disp32 | |
40fb9820 L |
1989 | || t.bitfield.disp64 |
1990 | || t.bitfield.baseindex); | |
1991 | ||
1992 | default: | |
1993 | abort (); | |
1994 | } | |
2cfe26b6 AM |
1995 | |
1996 | return 0; | |
40fb9820 L |
1997 | } |
1998 | ||
7a54636a L |
1999 | /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size |
2000 | between operand GIVEN and opeand WANTED for instruction template T. */ | |
5c07affc L |
2001 | |
2002 | static INLINE int | |
7a54636a L |
2003 | match_operand_size (const insn_template *t, unsigned int wanted, |
2004 | unsigned int given) | |
5c07affc | 2005 | { |
3ac21baa JB |
2006 | return !((i.types[given].bitfield.byte |
2007 | && !t->operand_types[wanted].bitfield.byte) | |
2008 | || (i.types[given].bitfield.word | |
2009 | && !t->operand_types[wanted].bitfield.word) | |
2010 | || (i.types[given].bitfield.dword | |
2011 | && !t->operand_types[wanted].bitfield.dword) | |
2012 | || (i.types[given].bitfield.qword | |
2013 | && !t->operand_types[wanted].bitfield.qword) | |
2014 | || (i.types[given].bitfield.tbyte | |
2015 | && !t->operand_types[wanted].bitfield.tbyte)); | |
5c07affc L |
2016 | } |
2017 | ||
dd40ce22 L |
2018 | /* Return 1 if there is no conflict in SIMD register between operand |
2019 | GIVEN and opeand WANTED for instruction template T. */ | |
1b54b8d7 JB |
2020 | |
2021 | static INLINE int | |
dd40ce22 L |
2022 | match_simd_size (const insn_template *t, unsigned int wanted, |
2023 | unsigned int given) | |
1b54b8d7 | 2024 | { |
3ac21baa JB |
2025 | return !((i.types[given].bitfield.xmmword |
2026 | && !t->operand_types[wanted].bitfield.xmmword) | |
2027 | || (i.types[given].bitfield.ymmword | |
2028 | && !t->operand_types[wanted].bitfield.ymmword) | |
2029 | || (i.types[given].bitfield.zmmword | |
260cd341 LC |
2030 | && !t->operand_types[wanted].bitfield.zmmword) |
2031 | || (i.types[given].bitfield.tmmword | |
2032 | && !t->operand_types[wanted].bitfield.tmmword)); | |
1b54b8d7 JB |
2033 | } |
2034 | ||
7a54636a L |
2035 | /* Return 1 if there is no conflict in any size between operand GIVEN |
2036 | and opeand WANTED for instruction template T. */ | |
5c07affc L |
2037 | |
2038 | static INLINE int | |
dd40ce22 L |
2039 | match_mem_size (const insn_template *t, unsigned int wanted, |
2040 | unsigned int given) | |
5c07affc | 2041 | { |
7a54636a | 2042 | return (match_operand_size (t, wanted, given) |
3ac21baa | 2043 | && !((i.types[given].bitfield.unspecified |
5273a3cd | 2044 | && !i.broadcast.type |
a5748e0d | 2045 | && !i.broadcast.bytes |
3ac21baa JB |
2046 | && !t->operand_types[wanted].bitfield.unspecified) |
2047 | || (i.types[given].bitfield.fword | |
2048 | && !t->operand_types[wanted].bitfield.fword) | |
1b54b8d7 JB |
2049 | /* For scalar opcode templates to allow register and memory |
2050 | operands at the same time, some special casing is needed | |
d6793fa1 JB |
2051 | here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and |
2052 | down-conversion vpmov*. */ | |
3528c362 | 2053 | || ((t->operand_types[wanted].bitfield.class == RegSIMD |
bc49bfd8 JB |
2054 | && t->operand_types[wanted].bitfield.byte |
2055 | + t->operand_types[wanted].bitfield.word | |
2056 | + t->operand_types[wanted].bitfield.dword | |
2057 | + t->operand_types[wanted].bitfield.qword | |
2058 | > !!t->opcode_modifier.broadcast) | |
3ac21baa JB |
2059 | ? (i.types[given].bitfield.xmmword |
2060 | || i.types[given].bitfield.ymmword | |
2061 | || i.types[given].bitfield.zmmword) | |
2062 | : !match_simd_size(t, wanted, given)))); | |
5c07affc L |
2063 | } |
2064 | ||
3ac21baa JB |
2065 | /* Return value has MATCH_STRAIGHT set if there is no size conflict on any |
2066 | operands for instruction template T, and it has MATCH_REVERSE set if there | |
2067 | is no size conflict on any operands for the template with operands reversed | |
2068 | (and the template allows for reversing in the first place). */ | |
5c07affc | 2069 | |
3ac21baa JB |
2070 | #define MATCH_STRAIGHT 1 |
2071 | #define MATCH_REVERSE 2 | |
2072 | ||
2073 | static INLINE unsigned int | |
d3ce72d0 | 2074 | operand_size_match (const insn_template *t) |
5c07affc | 2075 | { |
3ac21baa | 2076 | unsigned int j, match = MATCH_STRAIGHT; |
5c07affc | 2077 | |
0cfa3eb3 | 2078 | /* Don't check non-absolute jump instructions. */ |
5c07affc | 2079 | if (t->opcode_modifier.jump |
0cfa3eb3 | 2080 | && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
5c07affc L |
2081 | return match; |
2082 | ||
2083 | /* Check memory and accumulator operand size. */ | |
2084 | for (j = 0; j < i.operands; j++) | |
2085 | { | |
3528c362 JB |
2086 | if (i.types[j].bitfield.class != Reg |
2087 | && i.types[j].bitfield.class != RegSIMD | |
255571cd | 2088 | && t->opcode_modifier.operandconstraint == ANY_SIZE) |
5c07affc L |
2089 | continue; |
2090 | ||
bab6aec1 | 2091 | if (t->operand_types[j].bitfield.class == Reg |
7a54636a | 2092 | && !match_operand_size (t, j, j)) |
5c07affc L |
2093 | { |
2094 | match = 0; | |
2095 | break; | |
2096 | } | |
2097 | ||
3528c362 | 2098 | if (t->operand_types[j].bitfield.class == RegSIMD |
3ac21baa | 2099 | && !match_simd_size (t, j, j)) |
1b54b8d7 JB |
2100 | { |
2101 | match = 0; | |
2102 | break; | |
2103 | } | |
2104 | ||
75e5731b | 2105 | if (t->operand_types[j].bitfield.instance == Accum |
7a54636a | 2106 | && (!match_operand_size (t, j, j) || !match_simd_size (t, j, j))) |
1b54b8d7 JB |
2107 | { |
2108 | match = 0; | |
2109 | break; | |
2110 | } | |
2111 | ||
c48dadc9 | 2112 | if ((i.flags[j] & Operand_Mem) && !match_mem_size (t, j, j)) |
5c07affc L |
2113 | { |
2114 | match = 0; | |
2115 | break; | |
2116 | } | |
2117 | } | |
2118 | ||
3ac21baa | 2119 | if (!t->opcode_modifier.d) |
7b94647a | 2120 | return match; |
5c07affc L |
2121 | |
2122 | /* Check reverse. */ | |
8bd915b7 JB |
2123 | gas_assert ((i.operands >= 2 && i.operands <= 3) |
2124 | || t->opcode_modifier.vexsources); | |
5c07affc | 2125 | |
f5eb1d70 | 2126 | for (j = 0; j < i.operands; j++) |
5c07affc | 2127 | { |
f5eb1d70 JB |
2128 | unsigned int given = i.operands - j - 1; |
2129 | ||
8bd915b7 JB |
2130 | /* For 4- and 5-operand insns VEX.W controls just the first two |
2131 | register operands. */ | |
2132 | if (t->opcode_modifier.vexsources) | |
2133 | given = j < 2 ? 1 - j : j; | |
2134 | ||
bab6aec1 | 2135 | if (t->operand_types[j].bitfield.class == Reg |
f5eb1d70 | 2136 | && !match_operand_size (t, j, given)) |
7b94647a | 2137 | return match; |
5c07affc | 2138 | |
3528c362 | 2139 | if (t->operand_types[j].bitfield.class == RegSIMD |
f5eb1d70 | 2140 | && !match_simd_size (t, j, given)) |
7b94647a | 2141 | return match; |
dbbc8b7e | 2142 | |
75e5731b | 2143 | if (t->operand_types[j].bitfield.instance == Accum |
f5eb1d70 JB |
2144 | && (!match_operand_size (t, j, given) |
2145 | || !match_simd_size (t, j, given))) | |
7b94647a | 2146 | return match; |
dbbc8b7e | 2147 | |
f5eb1d70 | 2148 | if ((i.flags[given] & Operand_Mem) && !match_mem_size (t, j, given)) |
7b94647a | 2149 | return match; |
5c07affc L |
2150 | } |
2151 | ||
3ac21baa | 2152 | return match | MATCH_REVERSE; |
5c07affc L |
2153 | } |
2154 | ||
c6fb90c8 | 2155 | static INLINE int |
40fb9820 L |
2156 | operand_type_match (i386_operand_type overlap, |
2157 | i386_operand_type given) | |
2158 | { | |
2159 | i386_operand_type temp = overlap; | |
2160 | ||
7d5e4556 | 2161 | temp.bitfield.unspecified = 0; |
5c07affc L |
2162 | temp.bitfield.byte = 0; |
2163 | temp.bitfield.word = 0; | |
2164 | temp.bitfield.dword = 0; | |
2165 | temp.bitfield.fword = 0; | |
2166 | temp.bitfield.qword = 0; | |
2167 | temp.bitfield.tbyte = 0; | |
2168 | temp.bitfield.xmmword = 0; | |
c0f3af97 | 2169 | temp.bitfield.ymmword = 0; |
43234a1e | 2170 | temp.bitfield.zmmword = 0; |
260cd341 | 2171 | temp.bitfield.tmmword = 0; |
0dfbf9d7 | 2172 | if (operand_type_all_zero (&temp)) |
891edac4 | 2173 | goto mismatch; |
40fb9820 | 2174 | |
6f2f06be | 2175 | if (given.bitfield.baseindex == overlap.bitfield.baseindex) |
891edac4 L |
2176 | return 1; |
2177 | ||
dc1e8a47 | 2178 | mismatch: |
a65babc9 | 2179 | i.error = operand_type_mismatch; |
891edac4 | 2180 | return 0; |
40fb9820 L |
2181 | } |
2182 | ||
7d5e4556 | 2183 | /* If given types g0 and g1 are registers they must be of the same type |
10c17abd | 2184 | unless the expected operand type register overlap is null. |
5de4d9ef | 2185 | Some Intel syntax memory operand size checking also happens here. */ |
40fb9820 | 2186 | |
c6fb90c8 | 2187 | static INLINE int |
dc821c5f | 2188 | operand_type_register_match (i386_operand_type g0, |
40fb9820 | 2189 | i386_operand_type t0, |
40fb9820 L |
2190 | i386_operand_type g1, |
2191 | i386_operand_type t1) | |
2192 | { | |
bab6aec1 | 2193 | if (g0.bitfield.class != Reg |
3528c362 | 2194 | && g0.bitfield.class != RegSIMD |
10c17abd JB |
2195 | && (!operand_type_check (g0, anymem) |
2196 | || g0.bitfield.unspecified | |
5de4d9ef JB |
2197 | || (t0.bitfield.class != Reg |
2198 | && t0.bitfield.class != RegSIMD))) | |
40fb9820 L |
2199 | return 1; |
2200 | ||
bab6aec1 | 2201 | if (g1.bitfield.class != Reg |
3528c362 | 2202 | && g1.bitfield.class != RegSIMD |
10c17abd JB |
2203 | && (!operand_type_check (g1, anymem) |
2204 | || g1.bitfield.unspecified | |
5de4d9ef JB |
2205 | || (t1.bitfield.class != Reg |
2206 | && t1.bitfield.class != RegSIMD))) | |
40fb9820 L |
2207 | return 1; |
2208 | ||
dc821c5f JB |
2209 | if (g0.bitfield.byte == g1.bitfield.byte |
2210 | && g0.bitfield.word == g1.bitfield.word | |
2211 | && g0.bitfield.dword == g1.bitfield.dword | |
10c17abd JB |
2212 | && g0.bitfield.qword == g1.bitfield.qword |
2213 | && g0.bitfield.xmmword == g1.bitfield.xmmword | |
2214 | && g0.bitfield.ymmword == g1.bitfield.ymmword | |
2215 | && g0.bitfield.zmmword == g1.bitfield.zmmword) | |
40fb9820 L |
2216 | return 1; |
2217 | ||
c4d09633 JB |
2218 | /* If expectations overlap in no more than a single size, all is fine. */ |
2219 | g0 = operand_type_and (t0, t1); | |
2220 | if (g0.bitfield.byte | |
2221 | + g0.bitfield.word | |
2222 | + g0.bitfield.dword | |
2223 | + g0.bitfield.qword | |
2224 | + g0.bitfield.xmmword | |
2225 | + g0.bitfield.ymmword | |
2226 | + g0.bitfield.zmmword <= 1) | |
891edac4 L |
2227 | return 1; |
2228 | ||
a65babc9 | 2229 | i.error = register_type_mismatch; |
891edac4 L |
2230 | |
2231 | return 0; | |
40fb9820 L |
2232 | } |
2233 | ||
4c692bc7 JB |
2234 | static INLINE unsigned int |
2235 | register_number (const reg_entry *r) | |
2236 | { | |
2237 | unsigned int nr = r->reg_num; | |
2238 | ||
2239 | if (r->reg_flags & RegRex) | |
2240 | nr += 8; | |
2241 | ||
200cbe0f L |
2242 | if (r->reg_flags & RegVRex) |
2243 | nr += 16; | |
2244 | ||
4c692bc7 JB |
2245 | return nr; |
2246 | } | |
2247 | ||
252b5132 | 2248 | static INLINE unsigned int |
40fb9820 | 2249 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 2250 | { |
b5014f7a | 2251 | if (t.bitfield.disp8) |
40fb9820 L |
2252 | return 1; |
2253 | else if (t.bitfield.disp16 | |
a775efc8 | 2254 | || t.bitfield.disp32) |
40fb9820 L |
2255 | return 2; |
2256 | else | |
2257 | return 0; | |
252b5132 RH |
2258 | } |
2259 | ||
2260 | static INLINE int | |
65879393 | 2261 | fits_in_signed_byte (addressT num) |
252b5132 | 2262 | { |
65879393 | 2263 | return num + 0x80 <= 0xff; |
47926f60 | 2264 | } |
252b5132 RH |
2265 | |
2266 | static INLINE int | |
65879393 | 2267 | fits_in_unsigned_byte (addressT num) |
252b5132 | 2268 | { |
65879393 | 2269 | return num <= 0xff; |
47926f60 | 2270 | } |
252b5132 RH |
2271 | |
2272 | static INLINE int | |
65879393 | 2273 | fits_in_unsigned_word (addressT num) |
252b5132 | 2274 | { |
65879393 | 2275 | return num <= 0xffff; |
47926f60 | 2276 | } |
252b5132 RH |
2277 | |
2278 | static INLINE int | |
65879393 | 2279 | fits_in_signed_word (addressT num) |
252b5132 | 2280 | { |
65879393 | 2281 | return num + 0x8000 <= 0xffff; |
47926f60 | 2282 | } |
2a962e6d | 2283 | |
3e73aa7c | 2284 | static INLINE int |
65879393 | 2285 | fits_in_signed_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2286 | { |
2287 | #ifndef BFD64 | |
2288 | return 1; | |
2289 | #else | |
65879393 | 2290 | return num + 0x80000000 <= 0xffffffff; |
3e73aa7c JH |
2291 | #endif |
2292 | } /* fits_in_signed_long() */ | |
2a962e6d | 2293 | |
3e73aa7c | 2294 | static INLINE int |
65879393 | 2295 | fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2296 | { |
2297 | #ifndef BFD64 | |
2298 | return 1; | |
2299 | #else | |
65879393 | 2300 | return num <= 0xffffffff; |
3e73aa7c JH |
2301 | #endif |
2302 | } /* fits_in_unsigned_long() */ | |
252b5132 | 2303 | |
a442cac5 JB |
2304 | static INLINE valueT extend_to_32bit_address (addressT num) |
2305 | { | |
2306 | #ifdef BFD64 | |
2307 | if (fits_in_unsigned_long(num)) | |
2308 | return (num ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
2309 | ||
2310 | if (!fits_in_signed_long (num)) | |
2311 | return num & 0xffffffff; | |
2312 | #endif | |
2313 | ||
2314 | return num; | |
2315 | } | |
2316 | ||
43234a1e | 2317 | static INLINE int |
b5014f7a | 2318 | fits_in_disp8 (offsetT num) |
43234a1e L |
2319 | { |
2320 | int shift = i.memshift; | |
2321 | unsigned int mask; | |
2322 | ||
2323 | if (shift == -1) | |
2324 | abort (); | |
2325 | ||
2326 | mask = (1 << shift) - 1; | |
2327 | ||
2328 | /* Return 0 if NUM isn't properly aligned. */ | |
2329 | if ((num & mask)) | |
2330 | return 0; | |
2331 | ||
2332 | /* Check if NUM will fit in 8bit after shift. */ | |
2333 | return fits_in_signed_byte (num >> shift); | |
2334 | } | |
2335 | ||
a683cc34 SP |
2336 | static INLINE int |
2337 | fits_in_imm4 (offsetT num) | |
2338 | { | |
2339 | return (num & 0xf) == num; | |
2340 | } | |
2341 | ||
40fb9820 | 2342 | static i386_operand_type |
e3bb37b5 | 2343 | smallest_imm_type (offsetT num) |
252b5132 | 2344 | { |
40fb9820 | 2345 | i386_operand_type t; |
7ab9ffdd | 2346 | |
0dfbf9d7 | 2347 | operand_type_set (&t, 0); |
40fb9820 L |
2348 | t.bitfield.imm64 = 1; |
2349 | ||
2350 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
2351 | { |
2352 | /* This code is disabled on the 486 because all the Imm1 forms | |
2353 | in the opcode table are slower on the i486. They're the | |
2354 | versions with the implicitly specified single-position | |
2355 | displacement, which has another syntax if you really want to | |
2356 | use that form. */ | |
40fb9820 L |
2357 | t.bitfield.imm1 = 1; |
2358 | t.bitfield.imm8 = 1; | |
2359 | t.bitfield.imm8s = 1; | |
2360 | t.bitfield.imm16 = 1; | |
2361 | t.bitfield.imm32 = 1; | |
2362 | t.bitfield.imm32s = 1; | |
2363 | } | |
2364 | else if (fits_in_signed_byte (num)) | |
2365 | { | |
2366 | t.bitfield.imm8 = 1; | |
2367 | t.bitfield.imm8s = 1; | |
2368 | t.bitfield.imm16 = 1; | |
2369 | t.bitfield.imm32 = 1; | |
2370 | t.bitfield.imm32s = 1; | |
2371 | } | |
2372 | else if (fits_in_unsigned_byte (num)) | |
2373 | { | |
2374 | t.bitfield.imm8 = 1; | |
2375 | t.bitfield.imm16 = 1; | |
2376 | t.bitfield.imm32 = 1; | |
2377 | t.bitfield.imm32s = 1; | |
2378 | } | |
2379 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
2380 | { | |
2381 | t.bitfield.imm16 = 1; | |
2382 | t.bitfield.imm32 = 1; | |
2383 | t.bitfield.imm32s = 1; | |
2384 | } | |
2385 | else if (fits_in_signed_long (num)) | |
2386 | { | |
2387 | t.bitfield.imm32 = 1; | |
2388 | t.bitfield.imm32s = 1; | |
2389 | } | |
2390 | else if (fits_in_unsigned_long (num)) | |
2391 | t.bitfield.imm32 = 1; | |
2392 | ||
2393 | return t; | |
47926f60 | 2394 | } |
252b5132 | 2395 | |
847f7ad4 | 2396 | static offsetT |
e3bb37b5 | 2397 | offset_in_range (offsetT val, int size) |
847f7ad4 | 2398 | { |
508866be | 2399 | addressT mask; |
ba2adb93 | 2400 | |
847f7ad4 AM |
2401 | switch (size) |
2402 | { | |
508866be L |
2403 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
2404 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3e73aa7c | 2405 | #ifdef BFD64 |
64965897 | 2406 | case 4: mask = ((addressT) 1 << 32) - 1; break; |
3e73aa7c | 2407 | #endif |
64965897 | 2408 | case sizeof (val): return val; |
47926f60 | 2409 | default: abort (); |
847f7ad4 AM |
2410 | } |
2411 | ||
4fe51f7d | 2412 | if ((val & ~mask) != 0 && (-val & ~mask) != 0) |
f493c217 AM |
2413 | as_warn (_("0x%" PRIx64 " shortened to 0x%" PRIx64), |
2414 | (uint64_t) val, (uint64_t) (val & mask)); | |
847f7ad4 | 2415 | |
847f7ad4 AM |
2416 | return val & mask; |
2417 | } | |
2418 | ||
c32fa91d L |
2419 | enum PREFIX_GROUP |
2420 | { | |
2421 | PREFIX_EXIST = 0, | |
2422 | PREFIX_LOCK, | |
2423 | PREFIX_REP, | |
04ef582a | 2424 | PREFIX_DS, |
c32fa91d L |
2425 | PREFIX_OTHER |
2426 | }; | |
2427 | ||
2428 | /* Returns | |
2429 | a. PREFIX_EXIST if attempting to add a prefix where one from the | |
2430 | same class already exists. | |
2431 | b. PREFIX_LOCK if lock prefix is added. | |
2432 | c. PREFIX_REP if rep/repne prefix is added. | |
04ef582a L |
2433 | d. PREFIX_DS if ds prefix is added. |
2434 | e. PREFIX_OTHER if other prefix is added. | |
c32fa91d L |
2435 | */ |
2436 | ||
2437 | static enum PREFIX_GROUP | |
e3bb37b5 | 2438 | add_prefix (unsigned int prefix) |
252b5132 | 2439 | { |
c32fa91d | 2440 | enum PREFIX_GROUP ret = PREFIX_OTHER; |
b1905489 | 2441 | unsigned int q; |
252b5132 | 2442 | |
29b0f896 AM |
2443 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
2444 | && flag_code == CODE_64BIT) | |
b1905489 | 2445 | { |
161a04f6 | 2446 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
44846f29 JB |
2447 | || (i.prefix[REX_PREFIX] & prefix & REX_R) |
2448 | || (i.prefix[REX_PREFIX] & prefix & REX_X) | |
2449 | || (i.prefix[REX_PREFIX] & prefix & REX_B)) | |
c32fa91d | 2450 | ret = PREFIX_EXIST; |
b1905489 JB |
2451 | q = REX_PREFIX; |
2452 | } | |
3e73aa7c | 2453 | else |
b1905489 JB |
2454 | { |
2455 | switch (prefix) | |
2456 | { | |
2457 | default: | |
2458 | abort (); | |
2459 | ||
b1905489 | 2460 | case DS_PREFIX_OPCODE: |
04ef582a L |
2461 | ret = PREFIX_DS; |
2462 | /* Fall through. */ | |
2463 | case CS_PREFIX_OPCODE: | |
b1905489 JB |
2464 | case ES_PREFIX_OPCODE: |
2465 | case FS_PREFIX_OPCODE: | |
2466 | case GS_PREFIX_OPCODE: | |
2467 | case SS_PREFIX_OPCODE: | |
2468 | q = SEG_PREFIX; | |
2469 | break; | |
2470 | ||
2471 | case REPNE_PREFIX_OPCODE: | |
2472 | case REPE_PREFIX_OPCODE: | |
c32fa91d L |
2473 | q = REP_PREFIX; |
2474 | ret = PREFIX_REP; | |
2475 | break; | |
2476 | ||
b1905489 | 2477 | case LOCK_PREFIX_OPCODE: |
c32fa91d L |
2478 | q = LOCK_PREFIX; |
2479 | ret = PREFIX_LOCK; | |
b1905489 JB |
2480 | break; |
2481 | ||
2482 | case FWAIT_OPCODE: | |
2483 | q = WAIT_PREFIX; | |
2484 | break; | |
2485 | ||
2486 | case ADDR_PREFIX_OPCODE: | |
2487 | q = ADDR_PREFIX; | |
2488 | break; | |
2489 | ||
2490 | case DATA_PREFIX_OPCODE: | |
2491 | q = DATA_PREFIX; | |
2492 | break; | |
2493 | } | |
2494 | if (i.prefix[q] != 0) | |
c32fa91d | 2495 | ret = PREFIX_EXIST; |
b1905489 | 2496 | } |
252b5132 | 2497 | |
b1905489 | 2498 | if (ret) |
252b5132 | 2499 | { |
b1905489 JB |
2500 | if (!i.prefix[q]) |
2501 | ++i.prefixes; | |
2502 | i.prefix[q] |= prefix; | |
252b5132 | 2503 | } |
b1905489 JB |
2504 | else |
2505 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 2506 | |
252b5132 RH |
2507 | return ret; |
2508 | } | |
2509 | ||
2510 | static void | |
78f12dd3 | 2511 | update_code_flag (int value, int check) |
eecb386c | 2512 | { |
78f12dd3 L |
2513 | PRINTF_LIKE ((*as_error)); |
2514 | ||
1e9cc1c2 | 2515 | flag_code = (enum flag_code) value; |
40fb9820 L |
2516 | if (flag_code == CODE_64BIT) |
2517 | { | |
2518 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2519 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
40fb9820 L |
2520 | } |
2521 | else | |
2522 | { | |
2523 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2524 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
40fb9820 L |
2525 | } |
2526 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c | 2527 | { |
78f12dd3 L |
2528 | if (check) |
2529 | as_error = as_fatal; | |
2530 | else | |
2531 | as_error = as_bad; | |
2532 | (*as_error) (_("64bit mode not supported on `%s'."), | |
2533 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2534 | } |
40fb9820 | 2535 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c | 2536 | { |
78f12dd3 L |
2537 | if (check) |
2538 | as_error = as_fatal; | |
2539 | else | |
2540 | as_error = as_bad; | |
2541 | (*as_error) (_("32bit mode not supported on `%s'."), | |
2542 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2543 | } |
eecb386c AM |
2544 | stackop_size = '\0'; |
2545 | } | |
2546 | ||
78f12dd3 L |
2547 | static void |
2548 | set_code_flag (int value) | |
2549 | { | |
2550 | update_code_flag (value, 0); | |
2551 | } | |
2552 | ||
eecb386c | 2553 | static void |
e3bb37b5 | 2554 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 2555 | { |
1e9cc1c2 | 2556 | flag_code = (enum flag_code) new_code_flag; |
40fb9820 L |
2557 | if (flag_code != CODE_16BIT) |
2558 | abort (); | |
2559 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2560 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
9306ca4a | 2561 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
2562 | } |
2563 | ||
2564 | static void | |
e3bb37b5 | 2565 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
2566 | { |
2567 | /* Find out if register prefixing is specified. */ | |
2568 | int ask_naked_reg = 0; | |
2569 | ||
2570 | SKIP_WHITESPACE (); | |
29b0f896 | 2571 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 | 2572 | { |
d02603dc NC |
2573 | char *string; |
2574 | int e = get_symbol_name (&string); | |
252b5132 | 2575 | |
47926f60 | 2576 | if (strcmp (string, "prefix") == 0) |
252b5132 | 2577 | ask_naked_reg = 1; |
47926f60 | 2578 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
2579 | ask_naked_reg = -1; |
2580 | else | |
d0b47220 | 2581 | as_bad (_("bad argument to syntax directive.")); |
d02603dc | 2582 | (void) restore_line_pointer (e); |
252b5132 RH |
2583 | } |
2584 | demand_empty_rest_of_line (); | |
c3332e24 | 2585 | |
252b5132 RH |
2586 | intel_syntax = syntax_flag; |
2587 | ||
2588 | if (ask_naked_reg == 0) | |
f86103b7 AM |
2589 | allow_naked_reg = (intel_syntax |
2590 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
2591 | else |
2592 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 2593 | |
ee86248c | 2594 | expr_set_rank (O_full_ptr, syntax_flag ? 10 : 0); |
7ab9ffdd | 2595 | |
e4a3b5a4 | 2596 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 2597 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 2598 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
2599 | } |
2600 | ||
1efbbeb4 L |
2601 | static void |
2602 | set_intel_mnemonic (int mnemonic_flag) | |
2603 | { | |
e1d4d893 | 2604 | intel_mnemonic = mnemonic_flag; |
1efbbeb4 L |
2605 | } |
2606 | ||
db51cc60 L |
2607 | static void |
2608 | set_allow_index_reg (int flag) | |
2609 | { | |
2610 | allow_index_reg = flag; | |
2611 | } | |
2612 | ||
cb19c032 | 2613 | static void |
7bab8ab5 | 2614 | set_check (int what) |
cb19c032 | 2615 | { |
7bab8ab5 JB |
2616 | enum check_kind *kind; |
2617 | const char *str; | |
2618 | ||
2619 | if (what) | |
2620 | { | |
2621 | kind = &operand_check; | |
2622 | str = "operand"; | |
2623 | } | |
2624 | else | |
2625 | { | |
2626 | kind = &sse_check; | |
2627 | str = "sse"; | |
2628 | } | |
2629 | ||
cb19c032 L |
2630 | SKIP_WHITESPACE (); |
2631 | ||
2632 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
2633 | { | |
d02603dc NC |
2634 | char *string; |
2635 | int e = get_symbol_name (&string); | |
cb19c032 L |
2636 | |
2637 | if (strcmp (string, "none") == 0) | |
7bab8ab5 | 2638 | *kind = check_none; |
cb19c032 | 2639 | else if (strcmp (string, "warning") == 0) |
7bab8ab5 | 2640 | *kind = check_warning; |
cb19c032 | 2641 | else if (strcmp (string, "error") == 0) |
7bab8ab5 | 2642 | *kind = check_error; |
cb19c032 | 2643 | else |
7bab8ab5 | 2644 | as_bad (_("bad argument to %s_check directive."), str); |
d02603dc | 2645 | (void) restore_line_pointer (e); |
cb19c032 L |
2646 | } |
2647 | else | |
7bab8ab5 | 2648 | as_bad (_("missing argument for %s_check directive"), str); |
cb19c032 L |
2649 | |
2650 | demand_empty_rest_of_line (); | |
2651 | } | |
2652 | ||
8a9036a4 L |
2653 | static void |
2654 | check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED, | |
1e9cc1c2 | 2655 | i386_cpu_flags new_flag ATTRIBUTE_UNUSED) |
8a9036a4 L |
2656 | { |
2657 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
2658 | static const char *arch; | |
2659 | ||
c085ab00 | 2660 | /* Intel MCU is only supported on ELF. */ |
8a9036a4 L |
2661 | if (!IS_ELF) |
2662 | return; | |
2663 | ||
2664 | if (!arch) | |
2665 | { | |
2666 | /* Use cpu_arch_name if it is set in md_parse_option. Otherwise | |
2667 | use default_arch. */ | |
2668 | arch = cpu_arch_name; | |
2669 | if (!arch) | |
2670 | arch = default_arch; | |
2671 | } | |
2672 | ||
81486035 | 2673 | /* If we are targeting Intel MCU, we must enable it. */ |
648d04db JB |
2674 | if ((get_elf_backend_data (stdoutput)->elf_machine_code == EM_IAMCU) |
2675 | == new_flag.bitfield.cpuiamcu) | |
81486035 L |
2676 | return; |
2677 | ||
8a9036a4 L |
2678 | as_bad (_("`%s' is not supported on `%s'"), name, arch); |
2679 | #endif | |
2680 | } | |
2681 | ||
8180707f JB |
2682 | static void |
2683 | extend_cpu_sub_arch_name (const char *name) | |
2684 | { | |
2685 | if (cpu_sub_arch_name) | |
2686 | cpu_sub_arch_name = reconcat (cpu_sub_arch_name, cpu_sub_arch_name, | |
ae89daec | 2687 | ".", name, (const char *) NULL); |
8180707f | 2688 | else |
ae89daec | 2689 | cpu_sub_arch_name = concat (".", name, (const char *) NULL); |
8180707f JB |
2690 | } |
2691 | ||
e413e4e9 | 2692 | static void |
e3bb37b5 | 2693 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 2694 | { |
f68697e8 JB |
2695 | typedef struct arch_stack_entry |
2696 | { | |
2697 | const struct arch_stack_entry *prev; | |
2698 | const char *name; | |
2699 | char *sub_name; | |
2700 | i386_cpu_flags flags; | |
2701 | i386_cpu_flags isa_flags; | |
2702 | enum processor_type isa; | |
2703 | enum flag_code flag_code; | |
2704 | char stackop_size; | |
2705 | bool no_cond_jump_promotion; | |
2706 | } arch_stack_entry; | |
2707 | static const arch_stack_entry *arch_stack_top; | |
2708 | ||
47926f60 | 2709 | SKIP_WHITESPACE (); |
e413e4e9 | 2710 | |
29b0f896 | 2711 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 | 2712 | { |
3ce2ebcf JB |
2713 | char *s; |
2714 | int e = get_symbol_name (&s); | |
2715 | const char *string = s; | |
2716 | unsigned int j = 0; | |
40fb9820 | 2717 | i386_cpu_flags flags; |
e413e4e9 | 2718 | |
3ce2ebcf JB |
2719 | if (strcmp (string, "default") == 0) |
2720 | { | |
2721 | if (strcmp (default_arch, "iamcu") == 0) | |
2722 | string = default_arch; | |
2723 | else | |
2724 | { | |
2725 | static const i386_cpu_flags cpu_unknown_flags = CPU_UNKNOWN_FLAGS; | |
2726 | ||
2727 | cpu_arch_name = NULL; | |
2728 | free (cpu_sub_arch_name); | |
2729 | cpu_sub_arch_name = NULL; | |
2730 | cpu_arch_flags = cpu_unknown_flags; | |
2731 | if (flag_code == CODE_64BIT) | |
2732 | { | |
2733 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2734 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
2735 | } | |
2736 | else | |
2737 | { | |
2738 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2739 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
2740 | } | |
2741 | cpu_arch_isa = PROCESSOR_UNKNOWN; | |
ae89daec | 2742 | cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
3ce2ebcf JB |
2743 | if (!cpu_arch_tune_set) |
2744 | { | |
2745 | cpu_arch_tune = cpu_arch_isa; | |
2746 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
2747 | } | |
2748 | ||
2749 | j = ARRAY_SIZE (cpu_arch) + 1; | |
2750 | } | |
2751 | } | |
f68697e8 JB |
2752 | else if (strcmp (string, "push") == 0) |
2753 | { | |
2754 | arch_stack_entry *top = XNEW (arch_stack_entry); | |
2755 | ||
2756 | top->name = cpu_arch_name; | |
2757 | if (cpu_sub_arch_name) | |
2758 | top->sub_name = xstrdup (cpu_sub_arch_name); | |
2759 | else | |
2760 | top->sub_name = NULL; | |
2761 | top->flags = cpu_arch_flags; | |
2762 | top->isa = cpu_arch_isa; | |
2763 | top->isa_flags = cpu_arch_isa_flags; | |
2764 | top->flag_code = flag_code; | |
2765 | top->stackop_size = stackop_size; | |
2766 | top->no_cond_jump_promotion = no_cond_jump_promotion; | |
2767 | ||
2768 | top->prev = arch_stack_top; | |
2769 | arch_stack_top = top; | |
2770 | ||
2771 | (void) restore_line_pointer (e); | |
2772 | demand_empty_rest_of_line (); | |
2773 | return; | |
2774 | } | |
2775 | else if (strcmp (string, "pop") == 0) | |
2776 | { | |
2777 | const arch_stack_entry *top = arch_stack_top; | |
2778 | ||
2779 | if (!top) | |
2780 | as_bad (_(".arch stack is empty")); | |
2781 | else if (top->flag_code != flag_code | |
2782 | || top->stackop_size != stackop_size) | |
2783 | { | |
2784 | static const unsigned int bits[] = { | |
2785 | [CODE_16BIT] = 16, | |
2786 | [CODE_32BIT] = 32, | |
2787 | [CODE_64BIT] = 64, | |
2788 | }; | |
2789 | ||
2790 | as_bad (_("this `.arch pop' requires `.code%u%s' to be in effect"), | |
2791 | bits[top->flag_code], | |
2792 | top->stackop_size == LONG_MNEM_SUFFIX ? "gcc" : ""); | |
2793 | } | |
2794 | else | |
2795 | { | |
2796 | arch_stack_top = top->prev; | |
2797 | ||
2798 | cpu_arch_name = top->name; | |
2799 | free (cpu_sub_arch_name); | |
2800 | cpu_sub_arch_name = top->sub_name; | |
2801 | cpu_arch_flags = top->flags; | |
2802 | cpu_arch_isa = top->isa; | |
2803 | cpu_arch_isa_flags = top->isa_flags; | |
2804 | no_cond_jump_promotion = top->no_cond_jump_promotion; | |
2805 | ||
2806 | XDELETE (top); | |
2807 | } | |
2808 | ||
2809 | (void) restore_line_pointer (e); | |
2810 | demand_empty_rest_of_line (); | |
2811 | return; | |
2812 | } | |
3ce2ebcf JB |
2813 | |
2814 | for (; j < ARRAY_SIZE (cpu_arch); j++) | |
e413e4e9 | 2815 | { |
ae89daec JB |
2816 | if (strcmp (string + (*string == '.'), cpu_arch[j].name) == 0 |
2817 | && (*string == '.') == (cpu_arch[j].type == PROCESSOR_NONE)) | |
e413e4e9 | 2818 | { |
5c6af06e JB |
2819 | if (*string != '.') |
2820 | { | |
ae89daec | 2821 | check_cpu_arch_compatible (string, cpu_arch[j].enable); |
648d04db | 2822 | |
91d6fa6a | 2823 | cpu_arch_name = cpu_arch[j].name; |
d92c7521 | 2824 | free (cpu_sub_arch_name); |
5c6af06e | 2825 | cpu_sub_arch_name = NULL; |
ae89daec | 2826 | cpu_arch_flags = cpu_arch[j].enable; |
40fb9820 L |
2827 | if (flag_code == CODE_64BIT) |
2828 | { | |
2829 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2830 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
2831 | } | |
2832 | else | |
2833 | { | |
2834 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2835 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
2836 | } | |
91d6fa6a | 2837 | cpu_arch_isa = cpu_arch[j].type; |
ae89daec | 2838 | cpu_arch_isa_flags = cpu_arch[j].enable; |
ccc9c027 L |
2839 | if (!cpu_arch_tune_set) |
2840 | { | |
2841 | cpu_arch_tune = cpu_arch_isa; | |
2842 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
2843 | } | |
d59a54c2 | 2844 | pre_386_16bit_warned = false; |
5c6af06e JB |
2845 | break; |
2846 | } | |
40fb9820 | 2847 | |
ae89daec JB |
2848 | if (cpu_flags_all_zero (&cpu_arch[j].enable)) |
2849 | continue; | |
2850 | ||
293f5f65 | 2851 | flags = cpu_flags_or (cpu_arch_flags, |
ae89daec | 2852 | cpu_arch[j].enable); |
81486035 | 2853 | |
5b64d091 | 2854 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
5c6af06e | 2855 | { |
ae89daec | 2856 | extend_cpu_sub_arch_name (string + 1); |
40fb9820 | 2857 | cpu_arch_flags = flags; |
a586129e | 2858 | cpu_arch_isa_flags = flags; |
5c6af06e | 2859 | } |
0089dace L |
2860 | else |
2861 | cpu_arch_isa_flags | |
2862 | = cpu_flags_or (cpu_arch_isa_flags, | |
ae89daec | 2863 | cpu_arch[j].enable); |
d02603dc | 2864 | (void) restore_line_pointer (e); |
5c6af06e JB |
2865 | demand_empty_rest_of_line (); |
2866 | return; | |
e413e4e9 AM |
2867 | } |
2868 | } | |
293f5f65 | 2869 | |
ae89daec | 2870 | if (startswith (string, ".no") && j >= ARRAY_SIZE (cpu_arch)) |
293f5f65 | 2871 | { |
33eaf5de | 2872 | /* Disable an ISA extension. */ |
ae89daec JB |
2873 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
2874 | if (cpu_arch[j].type == PROCESSOR_NONE | |
2875 | && strcmp (string + 3, cpu_arch[j].name) == 0) | |
293f5f65 L |
2876 | { |
2877 | flags = cpu_flags_and_not (cpu_arch_flags, | |
ae89daec | 2878 | cpu_arch[j].disable); |
293f5f65 L |
2879 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
2880 | { | |
ae89daec | 2881 | extend_cpu_sub_arch_name (string + 1); |
293f5f65 L |
2882 | cpu_arch_flags = flags; |
2883 | cpu_arch_isa_flags = flags; | |
2884 | } | |
2885 | (void) restore_line_pointer (e); | |
2886 | demand_empty_rest_of_line (); | |
2887 | return; | |
2888 | } | |
293f5f65 L |
2889 | } |
2890 | ||
3ce2ebcf | 2891 | if (j == ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
2892 | as_bad (_("no such architecture: `%s'"), string); |
2893 | ||
2894 | *input_line_pointer = e; | |
2895 | } | |
2896 | else | |
2897 | as_bad (_("missing cpu architecture")); | |
2898 | ||
fddf5b5b AM |
2899 | no_cond_jump_promotion = 0; |
2900 | if (*input_line_pointer == ',' | |
29b0f896 | 2901 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b | 2902 | { |
d02603dc NC |
2903 | char *string; |
2904 | char e; | |
2905 | ||
2906 | ++input_line_pointer; | |
2907 | e = get_symbol_name (&string); | |
fddf5b5b AM |
2908 | |
2909 | if (strcmp (string, "nojumps") == 0) | |
2910 | no_cond_jump_promotion = 1; | |
2911 | else if (strcmp (string, "jumps") == 0) | |
2912 | ; | |
2913 | else | |
2914 | as_bad (_("no such architecture modifier: `%s'"), string); | |
2915 | ||
d02603dc | 2916 | (void) restore_line_pointer (e); |
fddf5b5b AM |
2917 | } |
2918 | ||
e413e4e9 AM |
2919 | demand_empty_rest_of_line (); |
2920 | } | |
2921 | ||
8a9036a4 L |
2922 | enum bfd_architecture |
2923 | i386_arch (void) | |
2924 | { | |
c085ab00 | 2925 | if (cpu_arch_isa == PROCESSOR_IAMCU) |
81486035 L |
2926 | { |
2927 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2928 | || flag_code == CODE_64BIT) | |
2929 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
2930 | return bfd_arch_iamcu; | |
2931 | } | |
8a9036a4 L |
2932 | else |
2933 | return bfd_arch_i386; | |
2934 | } | |
2935 | ||
b9d79e03 | 2936 | unsigned long |
7016a5d5 | 2937 | i386_mach (void) |
b9d79e03 | 2938 | { |
d34049e8 | 2939 | if (startswith (default_arch, "x86_64")) |
8a9036a4 | 2940 | { |
c085ab00 | 2941 | if (default_arch[6] == '\0') |
8a9036a4 | 2942 | return bfd_mach_x86_64; |
351f65ca L |
2943 | else |
2944 | return bfd_mach_x64_32; | |
8a9036a4 | 2945 | } |
5197d474 L |
2946 | else if (!strcmp (default_arch, "i386") |
2947 | || !strcmp (default_arch, "iamcu")) | |
81486035 L |
2948 | { |
2949 | if (cpu_arch_isa == PROCESSOR_IAMCU) | |
2950 | { | |
2951 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour) | |
2952 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
2953 | return bfd_mach_i386_iamcu; | |
2954 | } | |
2955 | else | |
2956 | return bfd_mach_i386_i386; | |
2957 | } | |
b9d79e03 | 2958 | else |
2b5d6a91 | 2959 | as_fatal (_("unknown architecture")); |
b9d79e03 | 2960 | } |
b9d79e03 | 2961 | \f |
252b5132 | 2962 | void |
7016a5d5 | 2963 | md_begin (void) |
252b5132 | 2964 | { |
86fa6981 L |
2965 | /* Support pseudo prefixes like {disp32}. */ |
2966 | lex_type ['{'] = LEX_BEGIN_NAME; | |
2967 | ||
47926f60 | 2968 | /* Initialize op_hash hash table. */ |
629310ab | 2969 | op_hash = str_htab_create (); |
252b5132 RH |
2970 | |
2971 | { | |
d3ce72d0 | 2972 | const insn_template *optab; |
29b0f896 | 2973 | templates *core_optab; |
252b5132 | 2974 | |
47926f60 KH |
2975 | /* Setup for loop. */ |
2976 | optab = i386_optab; | |
654d6f31 | 2977 | core_optab = notes_alloc (sizeof (*core_optab)); |
252b5132 RH |
2978 | core_optab->start = optab; |
2979 | ||
2980 | while (1) | |
2981 | { | |
2982 | ++optab; | |
2983 | if (optab->name == NULL | |
2984 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
2985 | { | |
2986 | /* different name --> ship out current template list; | |
47926f60 | 2987 | add to hash table; & begin anew. */ |
252b5132 | 2988 | core_optab->end = optab; |
fe0e921f AM |
2989 | if (str_hash_insert (op_hash, (optab - 1)->name, core_optab, 0)) |
2990 | as_fatal (_("duplicate %s"), (optab - 1)->name); | |
2991 | ||
252b5132 RH |
2992 | if (optab->name == NULL) |
2993 | break; | |
654d6f31 | 2994 | core_optab = notes_alloc (sizeof (*core_optab)); |
252b5132 RH |
2995 | core_optab->start = optab; |
2996 | } | |
2997 | } | |
2998 | } | |
2999 | ||
47926f60 | 3000 | /* Initialize reg_hash hash table. */ |
629310ab | 3001 | reg_hash = str_htab_create (); |
252b5132 | 3002 | { |
29b0f896 | 3003 | const reg_entry *regtab; |
c3fe08fa | 3004 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 3005 | |
c3fe08fa | 3006 | for (regtab = i386_regtab; regtab_size--; regtab++) |
6225c532 | 3007 | { |
6288d05f JB |
3008 | switch (regtab->reg_type.bitfield.class) |
3009 | { | |
3010 | case Reg: | |
34684862 JB |
3011 | if (regtab->reg_type.bitfield.dword) |
3012 | { | |
3013 | if (regtab->reg_type.bitfield.instance == Accum) | |
3014 | reg_eax = regtab; | |
3015 | } | |
3016 | else if (regtab->reg_type.bitfield.tbyte) | |
6288d05f JB |
3017 | { |
3018 | /* There's no point inserting st(<N>) in the hash table, as | |
3019 | parentheses aren't included in register_chars[] anyway. */ | |
3020 | if (regtab->reg_type.bitfield.instance != Accum) | |
3021 | continue; | |
3022 | reg_st0 = regtab; | |
3023 | } | |
3024 | break; | |
3025 | ||
5e042380 JB |
3026 | case SReg: |
3027 | switch (regtab->reg_num) | |
3028 | { | |
3029 | case 0: reg_es = regtab; break; | |
3030 | case 2: reg_ss = regtab; break; | |
3031 | case 3: reg_ds = regtab; break; | |
3032 | } | |
3033 | break; | |
3034 | ||
6288d05f JB |
3035 | case RegMask: |
3036 | if (!regtab->reg_num) | |
3037 | reg_k0 = regtab; | |
3038 | break; | |
3039 | } | |
3040 | ||
6225c532 JB |
3041 | if (str_hash_insert (reg_hash, regtab->reg_name, regtab, 0) != NULL) |
3042 | as_fatal (_("duplicate %s"), regtab->reg_name); | |
6225c532 | 3043 | } |
252b5132 RH |
3044 | } |
3045 | ||
47926f60 | 3046 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 3047 | { |
29b0f896 AM |
3048 | int c; |
3049 | char *p; | |
252b5132 RH |
3050 | |
3051 | for (c = 0; c < 256; c++) | |
3052 | { | |
014fbcda | 3053 | if (ISDIGIT (c) || ISLOWER (c)) |
252b5132 RH |
3054 | { |
3055 | mnemonic_chars[c] = c; | |
3056 | register_chars[c] = c; | |
3057 | operand_chars[c] = c; | |
3058 | } | |
3882b010 | 3059 | else if (ISUPPER (c)) |
252b5132 | 3060 | { |
3882b010 | 3061 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
3062 | register_chars[c] = mnemonic_chars[c]; |
3063 | operand_chars[c] = c; | |
3064 | } | |
43234a1e | 3065 | else if (c == '{' || c == '}') |
86fa6981 L |
3066 | { |
3067 | mnemonic_chars[c] = c; | |
3068 | operand_chars[c] = c; | |
3069 | } | |
b3983e5f JB |
3070 | #ifdef SVR4_COMMENT_CHARS |
3071 | else if (c == '\\' && strchr (i386_comment_chars, '/')) | |
3072 | operand_chars[c] = c; | |
3073 | #endif | |
252b5132 | 3074 | |
3882b010 | 3075 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
3076 | identifier_chars[c] = c; |
3077 | else if (c >= 128) | |
3078 | { | |
3079 | identifier_chars[c] = c; | |
3080 | operand_chars[c] = c; | |
3081 | } | |
3082 | } | |
3083 | ||
3084 | #ifdef LEX_AT | |
3085 | identifier_chars['@'] = '@'; | |
32137342 NC |
3086 | #endif |
3087 | #ifdef LEX_QM | |
3088 | identifier_chars['?'] = '?'; | |
3089 | operand_chars['?'] = '?'; | |
252b5132 | 3090 | #endif |
c0f3af97 | 3091 | mnemonic_chars['_'] = '_'; |
791fe849 | 3092 | mnemonic_chars['-'] = '-'; |
0003779b | 3093 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
3094 | identifier_chars['_'] = '_'; |
3095 | identifier_chars['.'] = '.'; | |
3096 | ||
3097 | for (p = operand_special_chars; *p != '\0'; p++) | |
3098 | operand_chars[(unsigned char) *p] = *p; | |
3099 | } | |
3100 | ||
a4447b93 RH |
3101 | if (flag_code == CODE_64BIT) |
3102 | { | |
ca19b261 KT |
3103 | #if defined (OBJ_COFF) && defined (TE_PE) |
3104 | x86_dwarf2_return_column = (OUTPUT_FLAVOR == bfd_target_coff_flavour | |
3105 | ? 32 : 16); | |
3106 | #else | |
a4447b93 | 3107 | x86_dwarf2_return_column = 16; |
ca19b261 | 3108 | #endif |
61ff971f | 3109 | x86_cie_data_alignment = -8; |
b52c4ee4 IB |
3110 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
3111 | x86_sframe_cfa_sp_reg = 7; | |
3112 | x86_sframe_cfa_fp_reg = 6; | |
3113 | #endif | |
a4447b93 RH |
3114 | } |
3115 | else | |
3116 | { | |
3117 | x86_dwarf2_return_column = 8; | |
3118 | x86_cie_data_alignment = -4; | |
3119 | } | |
e379e5f3 L |
3120 | |
3121 | /* NB: FUSED_JCC_PADDING frag must have sufficient room so that it | |
3122 | can be turned into BRANCH_PREFIX frag. */ | |
3123 | if (align_branch_prefix_size > MAX_FUSED_JCC_PADDING_SIZE) | |
3124 | abort (); | |
252b5132 RH |
3125 | } |
3126 | ||
3127 | void | |
e3bb37b5 | 3128 | i386_print_statistics (FILE *file) |
252b5132 | 3129 | { |
629310ab ML |
3130 | htab_print_statistics (file, "i386 opcode", op_hash); |
3131 | htab_print_statistics (file, "i386 register", reg_hash); | |
252b5132 | 3132 | } |
654d6f31 AM |
3133 | |
3134 | void | |
3135 | i386_md_end (void) | |
3136 | { | |
3137 | htab_delete (op_hash); | |
3138 | htab_delete (reg_hash); | |
3139 | } | |
252b5132 | 3140 | \f |
252b5132 RH |
3141 | #ifdef DEBUG386 |
3142 | ||
ce8a8b2f | 3143 | /* Debugging routines for md_assemble. */ |
d3ce72d0 | 3144 | static void pte (insn_template *); |
40fb9820 | 3145 | static void pt (i386_operand_type); |
e3bb37b5 L |
3146 | static void pe (expressionS *); |
3147 | static void ps (symbolS *); | |
252b5132 RH |
3148 | |
3149 | static void | |
2c703856 | 3150 | pi (const char *line, i386_insn *x) |
252b5132 | 3151 | { |
09137c09 | 3152 | unsigned int j; |
252b5132 RH |
3153 | |
3154 | fprintf (stdout, "%s: template ", line); | |
3155 | pte (&x->tm); | |
09f131f2 JH |
3156 | fprintf (stdout, " address: base %s index %s scale %x\n", |
3157 | x->base_reg ? x->base_reg->reg_name : "none", | |
3158 | x->index_reg ? x->index_reg->reg_name : "none", | |
3159 | x->log2_scale_factor); | |
3160 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 3161 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
3162 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
3163 | x->sib.base, x->sib.index, x->sib.scale); | |
3164 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
3165 | (x->rex & REX_W) != 0, |
3166 | (x->rex & REX_R) != 0, | |
3167 | (x->rex & REX_X) != 0, | |
3168 | (x->rex & REX_B) != 0); | |
09137c09 | 3169 | for (j = 0; j < x->operands; j++) |
252b5132 | 3170 | { |
09137c09 SP |
3171 | fprintf (stdout, " #%d: ", j + 1); |
3172 | pt (x->types[j]); | |
252b5132 | 3173 | fprintf (stdout, "\n"); |
bab6aec1 | 3174 | if (x->types[j].bitfield.class == Reg |
3528c362 JB |
3175 | || x->types[j].bitfield.class == RegMMX |
3176 | || x->types[j].bitfield.class == RegSIMD | |
dd6b8a0b | 3177 | || x->types[j].bitfield.class == RegMask |
00cee14f | 3178 | || x->types[j].bitfield.class == SReg |
4a5c67ed JB |
3179 | || x->types[j].bitfield.class == RegCR |
3180 | || x->types[j].bitfield.class == RegDR | |
dd6b8a0b JB |
3181 | || x->types[j].bitfield.class == RegTR |
3182 | || x->types[j].bitfield.class == RegBND) | |
09137c09 SP |
3183 | fprintf (stdout, "%s\n", x->op[j].regs->reg_name); |
3184 | if (operand_type_check (x->types[j], imm)) | |
3185 | pe (x->op[j].imms); | |
3186 | if (operand_type_check (x->types[j], disp)) | |
3187 | pe (x->op[j].disps); | |
252b5132 RH |
3188 | } |
3189 | } | |
3190 | ||
3191 | static void | |
d3ce72d0 | 3192 | pte (insn_template *t) |
252b5132 | 3193 | { |
b933fa4b | 3194 | static const unsigned char opc_pfx[] = { 0, 0x66, 0xf3, 0xf2 }; |
441f6aca | 3195 | static const char *const opc_spc[] = { |
0cc78721 | 3196 | NULL, "0f", "0f38", "0f3a", NULL, "evexmap5", "evexmap6", NULL, |
441f6aca JB |
3197 | "XOP08", "XOP09", "XOP0A", |
3198 | }; | |
09137c09 | 3199 | unsigned int j; |
441f6aca | 3200 | |
252b5132 | 3201 | fprintf (stdout, " %d operands ", t->operands); |
441f6aca JB |
3202 | if (opc_pfx[t->opcode_modifier.opcodeprefix]) |
3203 | fprintf (stdout, "pfx %x ", opc_pfx[t->opcode_modifier.opcodeprefix]); | |
3204 | if (opc_spc[t->opcode_modifier.opcodespace]) | |
3205 | fprintf (stdout, "space %s ", opc_spc[t->opcode_modifier.opcodespace]); | |
47926f60 | 3206 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
3207 | if (t->extension_opcode != None) |
3208 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 3209 | if (t->opcode_modifier.d) |
252b5132 | 3210 | fprintf (stdout, "D"); |
40fb9820 | 3211 | if (t->opcode_modifier.w) |
252b5132 RH |
3212 | fprintf (stdout, "W"); |
3213 | fprintf (stdout, "\n"); | |
09137c09 | 3214 | for (j = 0; j < t->operands; j++) |
252b5132 | 3215 | { |
09137c09 SP |
3216 | fprintf (stdout, " #%d type ", j + 1); |
3217 | pt (t->operand_types[j]); | |
252b5132 RH |
3218 | fprintf (stdout, "\n"); |
3219 | } | |
3220 | } | |
3221 | ||
3222 | static void | |
e3bb37b5 | 3223 | pe (expressionS *e) |
252b5132 | 3224 | { |
24eab124 | 3225 | fprintf (stdout, " operation %d\n", e->X_op); |
b8281767 AM |
3226 | fprintf (stdout, " add_number %" PRId64 " (%" PRIx64 ")\n", |
3227 | (int64_t) e->X_add_number, (uint64_t) (valueT) e->X_add_number); | |
252b5132 RH |
3228 | if (e->X_add_symbol) |
3229 | { | |
3230 | fprintf (stdout, " add_symbol "); | |
3231 | ps (e->X_add_symbol); | |
3232 | fprintf (stdout, "\n"); | |
3233 | } | |
3234 | if (e->X_op_symbol) | |
3235 | { | |
3236 | fprintf (stdout, " op_symbol "); | |
3237 | ps (e->X_op_symbol); | |
3238 | fprintf (stdout, "\n"); | |
3239 | } | |
3240 | } | |
3241 | ||
3242 | static void | |
e3bb37b5 | 3243 | ps (symbolS *s) |
252b5132 RH |
3244 | { |
3245 | fprintf (stdout, "%s type %s%s", | |
3246 | S_GET_NAME (s), | |
3247 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
3248 | segment_name (S_GET_SEGMENT (s))); | |
3249 | } | |
3250 | ||
7b81dfbb | 3251 | static struct type_name |
252b5132 | 3252 | { |
40fb9820 L |
3253 | i386_operand_type mask; |
3254 | const char *name; | |
252b5132 | 3255 | } |
7b81dfbb | 3256 | const type_names[] = |
252b5132 | 3257 | { |
40fb9820 L |
3258 | { OPERAND_TYPE_REG8, "r8" }, |
3259 | { OPERAND_TYPE_REG16, "r16" }, | |
3260 | { OPERAND_TYPE_REG32, "r32" }, | |
3261 | { OPERAND_TYPE_REG64, "r64" }, | |
2c703856 JB |
3262 | { OPERAND_TYPE_ACC8, "acc8" }, |
3263 | { OPERAND_TYPE_ACC16, "acc16" }, | |
3264 | { OPERAND_TYPE_ACC32, "acc32" }, | |
3265 | { OPERAND_TYPE_ACC64, "acc64" }, | |
40fb9820 L |
3266 | { OPERAND_TYPE_IMM8, "i8" }, |
3267 | { OPERAND_TYPE_IMM8, "i8s" }, | |
3268 | { OPERAND_TYPE_IMM16, "i16" }, | |
3269 | { OPERAND_TYPE_IMM32, "i32" }, | |
3270 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
3271 | { OPERAND_TYPE_IMM64, "i64" }, | |
3272 | { OPERAND_TYPE_IMM1, "i1" }, | |
3273 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
3274 | { OPERAND_TYPE_DISP8, "d8" }, | |
3275 | { OPERAND_TYPE_DISP16, "d16" }, | |
3276 | { OPERAND_TYPE_DISP32, "d32" }, | |
40fb9820 L |
3277 | { OPERAND_TYPE_DISP64, "d64" }, |
3278 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
3279 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
3280 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
3281 | { OPERAND_TYPE_TEST, "test reg" }, | |
3282 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
3283 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
3284 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
21df382b | 3285 | { OPERAND_TYPE_SREG, "SReg" }, |
40fb9820 L |
3286 | { OPERAND_TYPE_REGMMX, "rMMX" }, |
3287 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
0349dc08 | 3288 | { OPERAND_TYPE_REGYMM, "rYMM" }, |
43234a1e | 3289 | { OPERAND_TYPE_REGZMM, "rZMM" }, |
260cd341 | 3290 | { OPERAND_TYPE_REGTMM, "rTMM" }, |
43234a1e | 3291 | { OPERAND_TYPE_REGMASK, "Mask reg" }, |
252b5132 RH |
3292 | }; |
3293 | ||
3294 | static void | |
40fb9820 | 3295 | pt (i386_operand_type t) |
252b5132 | 3296 | { |
40fb9820 | 3297 | unsigned int j; |
c6fb90c8 | 3298 | i386_operand_type a; |
252b5132 | 3299 | |
40fb9820 | 3300 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
3301 | { |
3302 | a = operand_type_and (t, type_names[j].mask); | |
2c703856 | 3303 | if (operand_type_equal (&a, &type_names[j].mask)) |
c6fb90c8 L |
3304 | fprintf (stdout, "%s, ", type_names[j].name); |
3305 | } | |
252b5132 RH |
3306 | fflush (stdout); |
3307 | } | |
3308 | ||
3309 | #endif /* DEBUG386 */ | |
3310 | \f | |
252b5132 | 3311 | static bfd_reloc_code_real_type |
3956db08 | 3312 | reloc (unsigned int size, |
64e74474 AM |
3313 | int pcrel, |
3314 | int sign, | |
3315 | bfd_reloc_code_real_type other) | |
252b5132 | 3316 | { |
47926f60 | 3317 | if (other != NO_RELOC) |
3956db08 | 3318 | { |
91d6fa6a | 3319 | reloc_howto_type *rel; |
3956db08 JB |
3320 | |
3321 | if (size == 8) | |
3322 | switch (other) | |
3323 | { | |
64e74474 AM |
3324 | case BFD_RELOC_X86_64_GOT32: |
3325 | return BFD_RELOC_X86_64_GOT64; | |
3326 | break; | |
553d1284 L |
3327 | case BFD_RELOC_X86_64_GOTPLT64: |
3328 | return BFD_RELOC_X86_64_GOTPLT64; | |
3329 | break; | |
64e74474 AM |
3330 | case BFD_RELOC_X86_64_PLTOFF64: |
3331 | return BFD_RELOC_X86_64_PLTOFF64; | |
3332 | break; | |
3333 | case BFD_RELOC_X86_64_GOTPC32: | |
3334 | other = BFD_RELOC_X86_64_GOTPC64; | |
3335 | break; | |
3336 | case BFD_RELOC_X86_64_GOTPCREL: | |
3337 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
3338 | break; | |
3339 | case BFD_RELOC_X86_64_TPOFF32: | |
3340 | other = BFD_RELOC_X86_64_TPOFF64; | |
3341 | break; | |
3342 | case BFD_RELOC_X86_64_DTPOFF32: | |
3343 | other = BFD_RELOC_X86_64_DTPOFF64; | |
3344 | break; | |
3345 | default: | |
3346 | break; | |
3956db08 | 3347 | } |
e05278af | 3348 | |
8ce3d284 | 3349 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
3350 | if (other == BFD_RELOC_SIZE32) |
3351 | { | |
3352 | if (size == 8) | |
1ab668bf | 3353 | other = BFD_RELOC_SIZE64; |
8fd4256d | 3354 | if (pcrel) |
1ab668bf AM |
3355 | { |
3356 | as_bad (_("there are no pc-relative size relocations")); | |
3357 | return NO_RELOC; | |
3358 | } | |
8fd4256d | 3359 | } |
8ce3d284 | 3360 | #endif |
8fd4256d | 3361 | |
e05278af | 3362 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ |
f2d8a97c | 3363 | if (size == 4 && (flag_code != CODE_64BIT || disallow_64bit_reloc)) |
e05278af JB |
3364 | sign = -1; |
3365 | ||
91d6fa6a NC |
3366 | rel = bfd_reloc_type_lookup (stdoutput, other); |
3367 | if (!rel) | |
3956db08 | 3368 | as_bad (_("unknown relocation (%u)"), other); |
91d6fa6a | 3369 | else if (size != bfd_get_reloc_size (rel)) |
3956db08 | 3370 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), |
91d6fa6a | 3371 | bfd_get_reloc_size (rel), |
3956db08 | 3372 | size); |
91d6fa6a | 3373 | else if (pcrel && !rel->pc_relative) |
3956db08 | 3374 | as_bad (_("non-pc-relative relocation for pc-relative field")); |
91d6fa6a | 3375 | else if ((rel->complain_on_overflow == complain_overflow_signed |
3956db08 | 3376 | && !sign) |
91d6fa6a | 3377 | || (rel->complain_on_overflow == complain_overflow_unsigned |
64e74474 | 3378 | && sign > 0)) |
3956db08 JB |
3379 | as_bad (_("relocated field and relocation type differ in signedness")); |
3380 | else | |
3381 | return other; | |
3382 | return NO_RELOC; | |
3383 | } | |
252b5132 RH |
3384 | |
3385 | if (pcrel) | |
3386 | { | |
3e73aa7c | 3387 | if (!sign) |
3956db08 | 3388 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
3389 | switch (size) |
3390 | { | |
3391 | case 1: return BFD_RELOC_8_PCREL; | |
3392 | case 2: return BFD_RELOC_16_PCREL; | |
d258b828 | 3393 | case 4: return BFD_RELOC_32_PCREL; |
d6ab8113 | 3394 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 3395 | } |
3956db08 | 3396 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
3397 | } |
3398 | else | |
3399 | { | |
3956db08 | 3400 | if (sign > 0) |
e5cb08ac | 3401 | switch (size) |
3e73aa7c JH |
3402 | { |
3403 | case 4: return BFD_RELOC_X86_64_32S; | |
3404 | } | |
3405 | else | |
3406 | switch (size) | |
3407 | { | |
3408 | case 1: return BFD_RELOC_8; | |
3409 | case 2: return BFD_RELOC_16; | |
3410 | case 4: return BFD_RELOC_32; | |
3411 | case 8: return BFD_RELOC_64; | |
3412 | } | |
3956db08 JB |
3413 | as_bad (_("cannot do %s %u byte relocation"), |
3414 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
3415 | } |
3416 | ||
0cc9e1d3 | 3417 | return NO_RELOC; |
252b5132 RH |
3418 | } |
3419 | ||
47926f60 KH |
3420 | /* Here we decide which fixups can be adjusted to make them relative to |
3421 | the beginning of the section instead of the symbol. Basically we need | |
3422 | to make sure that the dynamic relocations are done correctly, so in | |
3423 | some cases we force the original symbol to be used. */ | |
3424 | ||
252b5132 | 3425 | int |
e3bb37b5 | 3426 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 3427 | { |
6d249963 | 3428 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 3429 | if (!IS_ELF) |
31312f95 AM |
3430 | return 1; |
3431 | ||
a161fe53 AM |
3432 | /* Don't adjust pc-relative references to merge sections in 64-bit |
3433 | mode. */ | |
3434 | if (use_rela_relocations | |
3435 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
3436 | && fixP->fx_pcrel) | |
252b5132 | 3437 | return 0; |
31312f95 | 3438 | |
8d01d9a9 AJ |
3439 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
3440 | and changed later by validate_fix. */ | |
3441 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
3442 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
3443 | return 0; | |
3444 | ||
8fd4256d L |
3445 | /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol |
3446 | for size relocations. */ | |
3447 | if (fixP->fx_r_type == BFD_RELOC_SIZE32 | |
3448 | || fixP->fx_r_type == BFD_RELOC_SIZE64 | |
3449 | || fixP->fx_r_type == BFD_RELOC_386_GOTOFF | |
252b5132 | 3450 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 |
02a86693 | 3451 | || fixP->fx_r_type == BFD_RELOC_386_GOT32X |
13ae64f3 JJ |
3452 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
3453 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
3454 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
3455 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
3456 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
3457 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
3458 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
3459 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
3460 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
3461 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c | 3462 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 |
80b3ee89 | 3463 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
56ceb5b5 L |
3464 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX |
3465 | || fixP->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX | |
bffbf940 JJ |
3466 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
3467 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
3468 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 3469 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
3470 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
3471 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
3472 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
3473 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
3474 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
3475 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
3476 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
3477 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
3478 | return 0; | |
31312f95 | 3479 | #endif |
252b5132 RH |
3480 | return 1; |
3481 | } | |
252b5132 | 3482 | |
a9aabc23 JB |
3483 | static INLINE bool |
3484 | want_disp32 (const insn_template *t) | |
3485 | { | |
3486 | return flag_code != CODE_64BIT | |
3487 | || i.prefix[ADDR_PREFIX] | |
3488 | || (t->base_opcode == 0x8d | |
3489 | && t->opcode_modifier.opcodespace == SPACE_BASE | |
fe134c65 JB |
3490 | && (!i.types[1].bitfield.qword |
3491 | || t->opcode_modifier.size == SIZE32)); | |
a9aabc23 JB |
3492 | } |
3493 | ||
b4cac588 | 3494 | static int |
e3bb37b5 | 3495 | intel_float_operand (const char *mnemonic) |
252b5132 | 3496 | { |
9306ca4a JB |
3497 | /* Note that the value returned is meaningful only for opcodes with (memory) |
3498 | operands, hence the code here is free to improperly handle opcodes that | |
3499 | have no operands (for better performance and smaller code). */ | |
3500 | ||
3501 | if (mnemonic[0] != 'f') | |
3502 | return 0; /* non-math */ | |
3503 | ||
3504 | switch (mnemonic[1]) | |
3505 | { | |
3506 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
3507 | the fs segment override prefix not currently handled because no | |
3508 | call path can make opcodes without operands get here */ | |
3509 | case 'i': | |
3510 | return 2 /* integer op */; | |
3511 | case 'l': | |
3512 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
3513 | return 3; /* fldcw/fldenv */ | |
3514 | break; | |
3515 | case 'n': | |
3516 | if (mnemonic[2] != 'o' /* fnop */) | |
3517 | return 3; /* non-waiting control op */ | |
3518 | break; | |
3519 | case 'r': | |
3520 | if (mnemonic[2] == 's') | |
3521 | return 3; /* frstor/frstpm */ | |
3522 | break; | |
3523 | case 's': | |
3524 | if (mnemonic[2] == 'a') | |
3525 | return 3; /* fsave */ | |
3526 | if (mnemonic[2] == 't') | |
3527 | { | |
3528 | switch (mnemonic[3]) | |
3529 | { | |
3530 | case 'c': /* fstcw */ | |
3531 | case 'd': /* fstdw */ | |
3532 | case 'e': /* fstenv */ | |
3533 | case 's': /* fsts[gw] */ | |
3534 | return 3; | |
3535 | } | |
3536 | } | |
3537 | break; | |
3538 | case 'x': | |
3539 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
3540 | return 0; /* fxsave/fxrstor are not really math ops */ | |
3541 | break; | |
3542 | } | |
252b5132 | 3543 | |
9306ca4a | 3544 | return 1; |
252b5132 RH |
3545 | } |
3546 | ||
9a182d04 JB |
3547 | static INLINE void |
3548 | install_template (const insn_template *t) | |
3549 | { | |
3550 | unsigned int l; | |
3551 | ||
3552 | i.tm = *t; | |
3553 | ||
3554 | /* Note that for pseudo prefixes this produces a length of 1. But for them | |
3555 | the length isn't interesting at all. */ | |
3556 | for (l = 1; l < 4; ++l) | |
3557 | if (!(t->base_opcode >> (8 * l))) | |
3558 | break; | |
3559 | ||
3560 | i.opcode_length = l; | |
3561 | } | |
3562 | ||
c0f3af97 L |
3563 | /* Build the VEX prefix. */ |
3564 | ||
3565 | static void | |
d3ce72d0 | 3566 | build_vex_prefix (const insn_template *t) |
c0f3af97 L |
3567 | { |
3568 | unsigned int register_specifier; | |
c0f3af97 | 3569 | unsigned int vector_length; |
03751133 | 3570 | unsigned int w; |
c0f3af97 L |
3571 | |
3572 | /* Check register specifier. */ | |
3573 | if (i.vex.register_specifier) | |
43234a1e L |
3574 | { |
3575 | register_specifier = | |
3576 | ~register_number (i.vex.register_specifier) & 0xf; | |
3577 | gas_assert ((i.vex.register_specifier->reg_flags & RegVRex) == 0); | |
3578 | } | |
c0f3af97 L |
3579 | else |
3580 | register_specifier = 0xf; | |
3581 | ||
79f0fa25 L |
3582 | /* Use 2-byte VEX prefix by swapping destination and source operand |
3583 | if there are more than 1 register operand. */ | |
3584 | if (i.reg_operands > 1 | |
3585 | && i.vec_encoding != vex_encoding_vex3 | |
86fa6981 | 3586 | && i.dir_encoding == dir_encoding_default |
fa99fab2 | 3587 | && i.operands == i.reg_operands |
dbbc8b7e | 3588 | && operand_type_equal (&i.types[0], &i.types[i.operands - 1]) |
441f6aca | 3589 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
dbbc8b7e | 3590 | && (i.tm.opcode_modifier.load || i.tm.opcode_modifier.d) |
fa99fab2 L |
3591 | && i.rex == REX_B) |
3592 | { | |
3593 | unsigned int xchg = i.operands - 1; | |
3594 | union i386_op temp_op; | |
3595 | i386_operand_type temp_type; | |
3596 | ||
3597 | temp_type = i.types[xchg]; | |
3598 | i.types[xchg] = i.types[0]; | |
3599 | i.types[0] = temp_type; | |
3600 | temp_op = i.op[xchg]; | |
3601 | i.op[xchg] = i.op[0]; | |
3602 | i.op[0] = temp_op; | |
3603 | ||
9c2799c2 | 3604 | gas_assert (i.rm.mode == 3); |
fa99fab2 L |
3605 | |
3606 | i.rex = REX_R; | |
3607 | xchg = i.rm.regmem; | |
3608 | i.rm.regmem = i.rm.reg; | |
3609 | i.rm.reg = xchg; | |
3610 | ||
dbbc8b7e JB |
3611 | if (i.tm.opcode_modifier.d) |
3612 | i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e | |
2c735193 | 3613 | ? Opcode_ExtD : Opcode_SIMD_IntD; |
dbbc8b7e | 3614 | else /* Use the next insn. */ |
9a182d04 | 3615 | install_template (&t[1]); |
fa99fab2 L |
3616 | } |
3617 | ||
79dec6b7 JB |
3618 | /* Use 2-byte VEX prefix by swapping commutative source operands if there |
3619 | are no memory operands and at least 3 register ones. */ | |
3620 | if (i.reg_operands >= 3 | |
3621 | && i.vec_encoding != vex_encoding_vex3 | |
3622 | && i.reg_operands == i.operands - i.imm_operands | |
3623 | && i.tm.opcode_modifier.vex | |
3624 | && i.tm.opcode_modifier.commutative | |
3625 | && (i.tm.opcode_modifier.sse2avx || optimize > 1) | |
3626 | && i.rex == REX_B | |
3627 | && i.vex.register_specifier | |
3628 | && !(i.vex.register_specifier->reg_flags & RegRex)) | |
3629 | { | |
3630 | unsigned int xchg = i.operands - i.reg_operands; | |
3631 | union i386_op temp_op; | |
3632 | i386_operand_type temp_type; | |
3633 | ||
441f6aca | 3634 | gas_assert (i.tm.opcode_modifier.opcodespace == SPACE_0F); |
79dec6b7 JB |
3635 | gas_assert (!i.tm.opcode_modifier.sae); |
3636 | gas_assert (operand_type_equal (&i.types[i.operands - 2], | |
3637 | &i.types[i.operands - 3])); | |
3638 | gas_assert (i.rm.mode == 3); | |
3639 | ||
3640 | temp_type = i.types[xchg]; | |
3641 | i.types[xchg] = i.types[xchg + 1]; | |
3642 | i.types[xchg + 1] = temp_type; | |
3643 | temp_op = i.op[xchg]; | |
3644 | i.op[xchg] = i.op[xchg + 1]; | |
3645 | i.op[xchg + 1] = temp_op; | |
3646 | ||
3647 | i.rex = 0; | |
3648 | xchg = i.rm.regmem | 8; | |
3649 | i.rm.regmem = ~register_specifier & 0xf; | |
3650 | gas_assert (!(i.rm.regmem & 8)); | |
3651 | i.vex.register_specifier += xchg - i.rm.regmem; | |
3652 | register_specifier = ~xchg & 0xf; | |
3653 | } | |
3654 | ||
539f890d L |
3655 | if (i.tm.opcode_modifier.vex == VEXScalar) |
3656 | vector_length = avxscalar; | |
10c17abd JB |
3657 | else if (i.tm.opcode_modifier.vex == VEX256) |
3658 | vector_length = 1; | |
539f890d | 3659 | else |
10c17abd | 3660 | { |
56522fc5 | 3661 | unsigned int op; |
10c17abd | 3662 | |
c7213af9 L |
3663 | /* Determine vector length from the last multi-length vector |
3664 | operand. */ | |
10c17abd | 3665 | vector_length = 0; |
56522fc5 | 3666 | for (op = t->operands; op--;) |
10c17abd JB |
3667 | if (t->operand_types[op].bitfield.xmmword |
3668 | && t->operand_types[op].bitfield.ymmword | |
3669 | && i.types[op].bitfield.ymmword) | |
3670 | { | |
3671 | vector_length = 1; | |
3672 | break; | |
3673 | } | |
3674 | } | |
c0f3af97 | 3675 | |
03751133 L |
3676 | /* Check the REX.W bit and VEXW. */ |
3677 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3678 | w = (vexwig == vexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3679 | else if (i.tm.opcode_modifier.vexw) | |
3680 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3681 | else | |
931d03b7 | 3682 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : vexwig == vexw1) ? 1 : 0; |
03751133 | 3683 | |
c0f3af97 | 3684 | /* Use 2-byte VEX prefix if possible. */ |
03751133 L |
3685 | if (w == 0 |
3686 | && i.vec_encoding != vex_encoding_vex3 | |
441f6aca | 3687 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
c0f3af97 L |
3688 | && (i.rex & (REX_W | REX_X | REX_B)) == 0) |
3689 | { | |
3690 | /* 2-byte VEX prefix. */ | |
3691 | unsigned int r; | |
3692 | ||
3693 | i.vex.length = 2; | |
3694 | i.vex.bytes[0] = 0xc5; | |
3695 | ||
3696 | /* Check the REX.R bit. */ | |
3697 | r = (i.rex & REX_R) ? 0 : 1; | |
3698 | i.vex.bytes[1] = (r << 7 | |
3699 | | register_specifier << 3 | |
3700 | | vector_length << 2 | |
35648716 | 3701 | | i.tm.opcode_modifier.opcodeprefix); |
c0f3af97 L |
3702 | } |
3703 | else | |
3704 | { | |
3705 | /* 3-byte VEX prefix. */ | |
f88c9eb0 | 3706 | i.vex.length = 3; |
f88c9eb0 | 3707 | |
441f6aca | 3708 | switch (i.tm.opcode_modifier.opcodespace) |
5dd85c99 | 3709 | { |
441f6aca JB |
3710 | case SPACE_0F: |
3711 | case SPACE_0F38: | |
3712 | case SPACE_0F3A: | |
80de6e00 | 3713 | i.vex.bytes[0] = 0xc4; |
7f399153 | 3714 | break; |
441f6aca JB |
3715 | case SPACE_XOP08: |
3716 | case SPACE_XOP09: | |
3717 | case SPACE_XOP0A: | |
f88c9eb0 | 3718 | i.vex.bytes[0] = 0x8f; |
7f399153 L |
3719 | break; |
3720 | default: | |
3721 | abort (); | |
f88c9eb0 | 3722 | } |
c0f3af97 | 3723 | |
c0f3af97 L |
3724 | /* The high 3 bits of the second VEX byte are 1's compliment |
3725 | of RXB bits from REX. */ | |
441f6aca | 3726 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | i.tm.opcode_modifier.opcodespace; |
c0f3af97 | 3727 | |
c0f3af97 L |
3728 | i.vex.bytes[2] = (w << 7 |
3729 | | register_specifier << 3 | |
3730 | | vector_length << 2 | |
35648716 | 3731 | | i.tm.opcode_modifier.opcodeprefix); |
c0f3af97 L |
3732 | } |
3733 | } | |
3734 | ||
5b7c81bd | 3735 | static INLINE bool |
e771e7c9 JB |
3736 | is_evex_encoding (const insn_template *t) |
3737 | { | |
7091c612 | 3738 | return t->opcode_modifier.evex || t->opcode_modifier.disp8memshift |
e771e7c9 | 3739 | || t->opcode_modifier.broadcast || t->opcode_modifier.masking |
a80195f1 | 3740 | || t->opcode_modifier.sae; |
e771e7c9 JB |
3741 | } |
3742 | ||
5b7c81bd | 3743 | static INLINE bool |
7a8655d2 JB |
3744 | is_any_vex_encoding (const insn_template *t) |
3745 | { | |
7b47a312 | 3746 | return t->opcode_modifier.vex || is_evex_encoding (t); |
7a8655d2 JB |
3747 | } |
3748 | ||
a5748e0d JB |
3749 | static unsigned int |
3750 | get_broadcast_bytes (const insn_template *t, bool diag) | |
3751 | { | |
3752 | unsigned int op, bytes; | |
3753 | const i386_operand_type *types; | |
3754 | ||
3755 | if (i.broadcast.type) | |
3756 | return i.broadcast.bytes = ((1 << (t->opcode_modifier.broadcast - 1)) | |
3757 | * i.broadcast.type); | |
3758 | ||
3759 | gas_assert (intel_syntax); | |
3760 | ||
3761 | for (op = 0; op < t->operands; ++op) | |
3762 | if (t->operand_types[op].bitfield.baseindex) | |
3763 | break; | |
3764 | ||
3765 | gas_assert (op < t->operands); | |
3766 | ||
3767 | if (t->opcode_modifier.evex | |
3768 | && t->opcode_modifier.evex != EVEXDYN) | |
3769 | switch (i.broadcast.bytes) | |
3770 | { | |
3771 | case 1: | |
3772 | if (t->operand_types[op].bitfield.word) | |
3773 | return 2; | |
3774 | /* Fall through. */ | |
3775 | case 2: | |
3776 | if (t->operand_types[op].bitfield.dword) | |
3777 | return 4; | |
3778 | /* Fall through. */ | |
3779 | case 4: | |
3780 | if (t->operand_types[op].bitfield.qword) | |
3781 | return 8; | |
3782 | /* Fall through. */ | |
3783 | case 8: | |
3784 | if (t->operand_types[op].bitfield.xmmword) | |
3785 | return 16; | |
3786 | if (t->operand_types[op].bitfield.ymmword) | |
3787 | return 32; | |
3788 | if (t->operand_types[op].bitfield.zmmword) | |
3789 | return 64; | |
3790 | /* Fall through. */ | |
3791 | default: | |
3792 | abort (); | |
3793 | } | |
3794 | ||
3795 | gas_assert (op + 1 < t->operands); | |
3796 | ||
3797 | if (t->operand_types[op + 1].bitfield.xmmword | |
3798 | + t->operand_types[op + 1].bitfield.ymmword | |
3799 | + t->operand_types[op + 1].bitfield.zmmword > 1) | |
3800 | { | |
3801 | types = &i.types[op + 1]; | |
3802 | diag = false; | |
3803 | } | |
3804 | else /* Ambiguous - guess with a preference to non-AVX512VL forms. */ | |
3805 | types = &t->operand_types[op]; | |
3806 | ||
3807 | if (types->bitfield.zmmword) | |
3808 | bytes = 64; | |
3809 | else if (types->bitfield.ymmword) | |
3810 | bytes = 32; | |
3811 | else | |
3812 | bytes = 16; | |
3813 | ||
3814 | if (diag) | |
3815 | as_warn (_("ambiguous broadcast for `%s', using %u-bit form"), | |
3816 | t->name, bytes * 8); | |
3817 | ||
3818 | return bytes; | |
3819 | } | |
3820 | ||
43234a1e L |
3821 | /* Build the EVEX prefix. */ |
3822 | ||
3823 | static void | |
3824 | build_evex_prefix (void) | |
3825 | { | |
35648716 | 3826 | unsigned int register_specifier, w; |
43234a1e L |
3827 | rex_byte vrex_used = 0; |
3828 | ||
3829 | /* Check register specifier. */ | |
3830 | if (i.vex.register_specifier) | |
3831 | { | |
3832 | gas_assert ((i.vrex & REX_X) == 0); | |
3833 | ||
3834 | register_specifier = i.vex.register_specifier->reg_num; | |
3835 | if ((i.vex.register_specifier->reg_flags & RegRex)) | |
3836 | register_specifier += 8; | |
3837 | /* The upper 16 registers are encoded in the fourth byte of the | |
3838 | EVEX prefix. */ | |
3839 | if (!(i.vex.register_specifier->reg_flags & RegVRex)) | |
3840 | i.vex.bytes[3] = 0x8; | |
3841 | register_specifier = ~register_specifier & 0xf; | |
3842 | } | |
3843 | else | |
3844 | { | |
3845 | register_specifier = 0xf; | |
3846 | ||
3847 | /* Encode upper 16 vector index register in the fourth byte of | |
3848 | the EVEX prefix. */ | |
3849 | if (!(i.vrex & REX_X)) | |
3850 | i.vex.bytes[3] = 0x8; | |
3851 | else | |
3852 | vrex_used |= REX_X; | |
3853 | } | |
3854 | ||
43234a1e L |
3855 | /* 4 byte EVEX prefix. */ |
3856 | i.vex.length = 4; | |
3857 | i.vex.bytes[0] = 0x62; | |
3858 | ||
43234a1e L |
3859 | /* The high 3 bits of the second EVEX byte are 1's compliment of RXB |
3860 | bits from REX. */ | |
441f6aca | 3861 | gas_assert (i.tm.opcode_modifier.opcodespace >= SPACE_0F); |
0cc78721 | 3862 | gas_assert (i.tm.opcode_modifier.opcodespace <= SPACE_EVEXMAP6); |
441f6aca | 3863 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | i.tm.opcode_modifier.opcodespace; |
43234a1e L |
3864 | |
3865 | /* The fifth bit of the second EVEX byte is 1's compliment of the | |
3866 | REX_R bit in VREX. */ | |
3867 | if (!(i.vrex & REX_R)) | |
3868 | i.vex.bytes[1] |= 0x10; | |
3869 | else | |
3870 | vrex_used |= REX_R; | |
3871 | ||
3872 | if ((i.reg_operands + i.imm_operands) == i.operands) | |
3873 | { | |
3874 | /* When all operands are registers, the REX_X bit in REX is not | |
3875 | used. We reuse it to encode the upper 16 registers, which is | |
3876 | indicated by the REX_B bit in VREX. The REX_X bit is encoded | |
3877 | as 1's compliment. */ | |
3878 | if ((i.vrex & REX_B)) | |
3879 | { | |
3880 | vrex_used |= REX_B; | |
3881 | i.vex.bytes[1] &= ~0x40; | |
3882 | } | |
3883 | } | |
3884 | ||
3885 | /* EVEX instructions shouldn't need the REX prefix. */ | |
3886 | i.vrex &= ~vrex_used; | |
3887 | gas_assert (i.vrex == 0); | |
3888 | ||
6865c043 L |
3889 | /* Check the REX.W bit and VEXW. */ |
3890 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3891 | w = (evexwig == evexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3892 | else if (i.tm.opcode_modifier.vexw) | |
3893 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3894 | else | |
931d03b7 | 3895 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : evexwig == evexw1) ? 1 : 0; |
43234a1e | 3896 | |
43234a1e | 3897 | /* The third byte of the EVEX prefix. */ |
35648716 JB |
3898 | i.vex.bytes[2] = ((w << 7) |
3899 | | (register_specifier << 3) | |
3900 | | 4 /* Encode the U bit. */ | |
3901 | | i.tm.opcode_modifier.opcodeprefix); | |
43234a1e L |
3902 | |
3903 | /* The fourth byte of the EVEX prefix. */ | |
3904 | /* The zeroing-masking bit. */ | |
6225c532 | 3905 | if (i.mask.reg && i.mask.zeroing) |
43234a1e L |
3906 | i.vex.bytes[3] |= 0x80; |
3907 | ||
3908 | /* Don't always set the broadcast bit if there is no RC. */ | |
ca5312a2 | 3909 | if (i.rounding.type == rc_none) |
43234a1e L |
3910 | { |
3911 | /* Encode the vector length. */ | |
3912 | unsigned int vec_length; | |
3913 | ||
e771e7c9 JB |
3914 | if (!i.tm.opcode_modifier.evex |
3915 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
3916 | { | |
56522fc5 | 3917 | unsigned int op; |
e771e7c9 | 3918 | |
c7213af9 L |
3919 | /* Determine vector length from the last multi-length vector |
3920 | operand. */ | |
56522fc5 | 3921 | for (op = i.operands; op--;) |
e771e7c9 JB |
3922 | if (i.tm.operand_types[op].bitfield.xmmword |
3923 | + i.tm.operand_types[op].bitfield.ymmword | |
3924 | + i.tm.operand_types[op].bitfield.zmmword > 1) | |
3925 | { | |
3926 | if (i.types[op].bitfield.zmmword) | |
c7213af9 L |
3927 | { |
3928 | i.tm.opcode_modifier.evex = EVEX512; | |
3929 | break; | |
3930 | } | |
e771e7c9 | 3931 | else if (i.types[op].bitfield.ymmword) |
c7213af9 L |
3932 | { |
3933 | i.tm.opcode_modifier.evex = EVEX256; | |
3934 | break; | |
3935 | } | |
e771e7c9 | 3936 | else if (i.types[op].bitfield.xmmword) |
c7213af9 L |
3937 | { |
3938 | i.tm.opcode_modifier.evex = EVEX128; | |
3939 | break; | |
3940 | } | |
a5748e0d | 3941 | else if (i.broadcast.bytes && op == i.broadcast.operand) |
625cbd7a | 3942 | { |
a5748e0d | 3943 | switch (get_broadcast_bytes (&i.tm, true)) |
625cbd7a JB |
3944 | { |
3945 | case 64: | |
3946 | i.tm.opcode_modifier.evex = EVEX512; | |
3947 | break; | |
3948 | case 32: | |
3949 | i.tm.opcode_modifier.evex = EVEX256; | |
3950 | break; | |
3951 | case 16: | |
3952 | i.tm.opcode_modifier.evex = EVEX128; | |
3953 | break; | |
3954 | default: | |
c7213af9 | 3955 | abort (); |
625cbd7a | 3956 | } |
c7213af9 | 3957 | break; |
625cbd7a | 3958 | } |
e771e7c9 | 3959 | } |
c7213af9 | 3960 | |
56522fc5 | 3961 | if (op >= MAX_OPERANDS) |
c7213af9 | 3962 | abort (); |
e771e7c9 JB |
3963 | } |
3964 | ||
43234a1e L |
3965 | switch (i.tm.opcode_modifier.evex) |
3966 | { | |
3967 | case EVEXLIG: /* LL' is ignored */ | |
3968 | vec_length = evexlig << 5; | |
3969 | break; | |
3970 | case EVEX128: | |
3971 | vec_length = 0 << 5; | |
3972 | break; | |
3973 | case EVEX256: | |
3974 | vec_length = 1 << 5; | |
3975 | break; | |
3976 | case EVEX512: | |
3977 | vec_length = 2 << 5; | |
3978 | break; | |
3979 | default: | |
3980 | abort (); | |
3981 | break; | |
3982 | } | |
3983 | i.vex.bytes[3] |= vec_length; | |
3984 | /* Encode the broadcast bit. */ | |
a5748e0d | 3985 | if (i.broadcast.bytes) |
43234a1e L |
3986 | i.vex.bytes[3] |= 0x10; |
3987 | } | |
ca5312a2 JB |
3988 | else if (i.rounding.type != saeonly) |
3989 | i.vex.bytes[3] |= 0x10 | (i.rounding.type << 5); | |
43234a1e | 3990 | else |
ca5312a2 | 3991 | i.vex.bytes[3] |= 0x10 | (evexrcig << 5); |
43234a1e | 3992 | |
6225c532 JB |
3993 | if (i.mask.reg) |
3994 | i.vex.bytes[3] |= i.mask.reg->reg_num; | |
43234a1e L |
3995 | } |
3996 | ||
65da13b5 L |
3997 | static void |
3998 | process_immext (void) | |
3999 | { | |
4000 | expressionS *exp; | |
4001 | ||
c0f3af97 | 4002 | /* These AMD 3DNow! and SSE2 instructions have an opcode suffix |
65da13b5 L |
4003 | which is coded in the same place as an 8-bit immediate field |
4004 | would be. Here we fake an 8-bit immediate operand from the | |
4005 | opcode suffix stored in tm.extension_opcode. | |
4006 | ||
c1e679ec | 4007 | AVX instructions also use this encoding, for some of |
c0f3af97 | 4008 | 3 argument instructions. */ |
65da13b5 | 4009 | |
43234a1e | 4010 | gas_assert (i.imm_operands <= 1 |
7ab9ffdd | 4011 | && (i.operands <= 2 |
7a8655d2 | 4012 | || (is_any_vex_encoding (&i.tm) |
7ab9ffdd | 4013 | && i.operands <= 4))); |
65da13b5 L |
4014 | |
4015 | exp = &im_expressions[i.imm_operands++]; | |
4016 | i.op[i.operands].imms = exp; | |
be1643ff | 4017 | i.types[i.operands].bitfield.imm8 = 1; |
65da13b5 L |
4018 | i.operands++; |
4019 | exp->X_op = O_constant; | |
4020 | exp->X_add_number = i.tm.extension_opcode; | |
4021 | i.tm.extension_opcode = None; | |
4022 | } | |
4023 | ||
42164a71 L |
4024 | |
4025 | static int | |
4026 | check_hle (void) | |
4027 | { | |
742732c7 | 4028 | switch (i.tm.opcode_modifier.prefixok) |
42164a71 L |
4029 | { |
4030 | default: | |
4031 | abort (); | |
742732c7 JB |
4032 | case PrefixLock: |
4033 | case PrefixNone: | |
4034 | case PrefixNoTrack: | |
4035 | case PrefixRep: | |
165de32a L |
4036 | as_bad (_("invalid instruction `%s' after `%s'"), |
4037 | i.tm.name, i.hle_prefix); | |
42164a71 | 4038 | return 0; |
742732c7 | 4039 | case PrefixHLELock: |
42164a71 L |
4040 | if (i.prefix[LOCK_PREFIX]) |
4041 | return 1; | |
165de32a | 4042 | as_bad (_("missing `lock' with `%s'"), i.hle_prefix); |
42164a71 | 4043 | return 0; |
742732c7 | 4044 | case PrefixHLEAny: |
42164a71 | 4045 | return 1; |
742732c7 | 4046 | case PrefixHLERelease: |
42164a71 L |
4047 | if (i.prefix[HLE_PREFIX] != XRELEASE_PREFIX_OPCODE) |
4048 | { | |
4049 | as_bad (_("instruction `%s' after `xacquire' not allowed"), | |
4050 | i.tm.name); | |
4051 | return 0; | |
4052 | } | |
8dc0818e | 4053 | if (i.mem_operands == 0 || !(i.flags[i.operands - 1] & Operand_Mem)) |
42164a71 L |
4054 | { |
4055 | as_bad (_("memory destination needed for instruction `%s'" | |
4056 | " after `xrelease'"), i.tm.name); | |
4057 | return 0; | |
4058 | } | |
4059 | return 1; | |
4060 | } | |
4061 | } | |
4062 | ||
c8480b58 L |
4063 | /* Encode aligned vector move as unaligned vector move. */ |
4064 | ||
4065 | static void | |
4066 | encode_with_unaligned_vector_move (void) | |
4067 | { | |
4068 | switch (i.tm.base_opcode) | |
4069 | { | |
b3a9fe6f L |
4070 | case 0x28: /* Load instructions. */ |
4071 | case 0x29: /* Store instructions. */ | |
c8480b58 L |
4072 | /* movaps/movapd/vmovaps/vmovapd. */ |
4073 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4074 | && i.tm.opcode_modifier.opcodeprefix <= PREFIX_0X66) | |
b3a9fe6f | 4075 | i.tm.base_opcode = 0x10 | (i.tm.base_opcode & 1); |
c8480b58 | 4076 | break; |
b3a9fe6f L |
4077 | case 0x6f: /* Load instructions. */ |
4078 | case 0x7f: /* Store instructions. */ | |
c8480b58 L |
4079 | /* movdqa/vmovdqa/vmovdqa64/vmovdqa32. */ |
4080 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4081 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0X66) | |
4082 | i.tm.opcode_modifier.opcodeprefix = PREFIX_0XF3; | |
4083 | break; | |
4084 | default: | |
4085 | break; | |
4086 | } | |
4087 | } | |
4088 | ||
b6f8c7c4 L |
4089 | /* Try the shortest encoding by shortening operand size. */ |
4090 | ||
4091 | static void | |
4092 | optimize_encoding (void) | |
4093 | { | |
a0a1771e | 4094 | unsigned int j; |
b6f8c7c4 | 4095 | |
fe134c65 JB |
4096 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
4097 | && i.tm.base_opcode == 0x8d) | |
4098 | { | |
4099 | /* Optimize: -O: | |
4100 | lea symbol, %rN -> mov $symbol, %rN | |
4101 | lea (%rM), %rN -> mov %rM, %rN | |
4102 | lea (,%rM,1), %rN -> mov %rM, %rN | |
4103 | ||
4104 | and in 32-bit mode for 16-bit addressing | |
4105 | ||
4106 | lea (%rM), %rN -> movzx %rM, %rN | |
4107 | ||
4108 | and in 64-bit mode zap 32-bit addressing in favor of using a | |
4109 | 32-bit (or less) destination. | |
4110 | */ | |
4111 | if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX]) | |
4112 | { | |
4113 | if (!i.op[1].regs->reg_type.bitfield.word) | |
4114 | i.tm.opcode_modifier.size = SIZE32; | |
4115 | i.prefix[ADDR_PREFIX] = 0; | |
4116 | } | |
4117 | ||
4118 | if (!i.index_reg && !i.base_reg) | |
4119 | { | |
4120 | /* Handle: | |
4121 | lea symbol, %rN -> mov $symbol, %rN | |
4122 | */ | |
4123 | if (flag_code == CODE_64BIT) | |
4124 | { | |
4125 | /* Don't transform a relocation to a 16-bit one. */ | |
4126 | if (i.op[0].disps | |
4127 | && i.op[0].disps->X_op != O_constant | |
4128 | && i.op[1].regs->reg_type.bitfield.word) | |
4129 | return; | |
4130 | ||
4131 | if (!i.op[1].regs->reg_type.bitfield.qword | |
4132 | || i.tm.opcode_modifier.size == SIZE32) | |
4133 | { | |
4134 | i.tm.base_opcode = 0xb8; | |
4135 | i.tm.opcode_modifier.modrm = 0; | |
4136 | if (!i.op[1].regs->reg_type.bitfield.word) | |
4137 | i.types[0].bitfield.imm32 = 1; | |
4138 | else | |
4139 | { | |
4140 | i.tm.opcode_modifier.size = SIZE16; | |
4141 | i.types[0].bitfield.imm16 = 1; | |
4142 | } | |
4143 | } | |
4144 | else | |
4145 | { | |
4146 | /* Subject to further optimization below. */ | |
4147 | i.tm.base_opcode = 0xc7; | |
4148 | i.tm.extension_opcode = 0; | |
4149 | i.types[0].bitfield.imm32s = 1; | |
4150 | i.types[0].bitfield.baseindex = 0; | |
4151 | } | |
4152 | } | |
4153 | /* Outside of 64-bit mode address and operand sizes have to match if | |
4154 | a relocation is involved, as otherwise we wouldn't (currently) or | |
4155 | even couldn't express the relocation correctly. */ | |
4156 | else if (i.op[0].disps | |
4157 | && i.op[0].disps->X_op != O_constant | |
4158 | && ((!i.prefix[ADDR_PREFIX]) | |
4159 | != (flag_code == CODE_32BIT | |
4160 | ? i.op[1].regs->reg_type.bitfield.dword | |
4161 | : i.op[1].regs->reg_type.bitfield.word))) | |
4162 | return; | |
7772f168 JB |
4163 | /* In 16-bit mode converting LEA with 16-bit addressing and a 32-bit |
4164 | destination is going to grow encoding size. */ | |
4165 | else if (flag_code == CODE_16BIT | |
4166 | && (optimize <= 1 || optimize_for_space) | |
4167 | && !i.prefix[ADDR_PREFIX] | |
4168 | && i.op[1].regs->reg_type.bitfield.dword) | |
4169 | return; | |
fe134c65 JB |
4170 | else |
4171 | { | |
4172 | i.tm.base_opcode = 0xb8; | |
4173 | i.tm.opcode_modifier.modrm = 0; | |
4174 | if (i.op[1].regs->reg_type.bitfield.dword) | |
4175 | i.types[0].bitfield.imm32 = 1; | |
4176 | else | |
4177 | i.types[0].bitfield.imm16 = 1; | |
4178 | ||
4179 | if (i.op[0].disps | |
4180 | && i.op[0].disps->X_op == O_constant | |
4181 | && i.op[1].regs->reg_type.bitfield.dword | |
60cfa10c L |
4182 | /* NB: Add () to !i.prefix[ADDR_PREFIX] to silence |
4183 | GCC 5. */ | |
4184 | && (!i.prefix[ADDR_PREFIX]) != (flag_code == CODE_32BIT)) | |
fe134c65 JB |
4185 | i.op[0].disps->X_add_number &= 0xffff; |
4186 | } | |
4187 | ||
4188 | i.tm.operand_types[0] = i.types[0]; | |
4189 | i.imm_operands = 1; | |
4190 | if (!i.op[0].imms) | |
4191 | { | |
4192 | i.op[0].imms = &im_expressions[0]; | |
4193 | i.op[0].imms->X_op = O_absent; | |
4194 | } | |
4195 | } | |
4196 | else if (i.op[0].disps | |
4197 | && (i.op[0].disps->X_op != O_constant | |
4198 | || i.op[0].disps->X_add_number)) | |
4199 | return; | |
4200 | else | |
4201 | { | |
4202 | /* Handle: | |
4203 | lea (%rM), %rN -> mov %rM, %rN | |
4204 | lea (,%rM,1), %rN -> mov %rM, %rN | |
4205 | lea (%rM), %rN -> movzx %rM, %rN | |
4206 | */ | |
4207 | const reg_entry *addr_reg; | |
4208 | ||
4209 | if (!i.index_reg && i.base_reg->reg_num != RegIP) | |
4210 | addr_reg = i.base_reg; | |
4211 | else if (!i.base_reg | |
4212 | && i.index_reg->reg_num != RegIZ | |
4213 | && !i.log2_scale_factor) | |
4214 | addr_reg = i.index_reg; | |
4215 | else | |
4216 | return; | |
4217 | ||
4218 | if (addr_reg->reg_type.bitfield.word | |
4219 | && i.op[1].regs->reg_type.bitfield.dword) | |
4220 | { | |
4221 | if (flag_code != CODE_32BIT) | |
4222 | return; | |
4223 | i.tm.opcode_modifier.opcodespace = SPACE_0F; | |
4224 | i.tm.base_opcode = 0xb7; | |
4225 | } | |
4226 | else | |
4227 | i.tm.base_opcode = 0x8b; | |
4228 | ||
4229 | if (addr_reg->reg_type.bitfield.dword | |
4230 | && i.op[1].regs->reg_type.bitfield.qword) | |
4231 | i.tm.opcode_modifier.size = SIZE32; | |
4232 | ||
4233 | i.op[0].regs = addr_reg; | |
4234 | i.reg_operands = 2; | |
4235 | } | |
4236 | ||
4237 | i.mem_operands = 0; | |
4238 | i.disp_operands = 0; | |
4239 | i.prefix[ADDR_PREFIX] = 0; | |
4240 | i.prefix[SEG_PREFIX] = 0; | |
4241 | i.seg[0] = NULL; | |
4242 | } | |
4243 | ||
b6f8c7c4 | 4244 | if (optimize_for_space |
389d00a5 | 4245 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
b6f8c7c4 L |
4246 | && i.reg_operands == 1 |
4247 | && i.imm_operands == 1 | |
4248 | && !i.types[1].bitfield.byte | |
4249 | && i.op[0].imms->X_op == O_constant | |
4250 | && fits_in_imm7 (i.op[0].imms->X_add_number) | |
72aea328 | 4251 | && (i.tm.base_opcode == 0xa8 |
b6f8c7c4 L |
4252 | || (i.tm.base_opcode == 0xf6 |
4253 | && i.tm.extension_opcode == 0x0))) | |
4254 | { | |
4255 | /* Optimize: -Os: | |
4256 | test $imm7, %r64/%r32/%r16 -> test $imm7, %r8 | |
4257 | */ | |
4258 | unsigned int base_regnum = i.op[1].regs->reg_num; | |
4259 | if (flag_code == CODE_64BIT || base_regnum < 4) | |
4260 | { | |
4261 | i.types[1].bitfield.byte = 1; | |
4262 | /* Ignore the suffix. */ | |
4263 | i.suffix = 0; | |
7697afb6 JB |
4264 | /* Convert to byte registers. */ |
4265 | if (i.types[1].bitfield.word) | |
4266 | j = 16; | |
4267 | else if (i.types[1].bitfield.dword) | |
4268 | j = 32; | |
4269 | else | |
4270 | j = 48; | |
4271 | if (!(i.op[1].regs->reg_flags & RegRex) && base_regnum < 4) | |
4272 | j += 8; | |
4273 | i.op[1].regs -= j; | |
b6f8c7c4 L |
4274 | } |
4275 | } | |
4276 | else if (flag_code == CODE_64BIT | |
389d00a5 | 4277 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
d3d50934 L |
4278 | && ((i.types[1].bitfield.qword |
4279 | && i.reg_operands == 1 | |
b6f8c7c4 L |
4280 | && i.imm_operands == 1 |
4281 | && i.op[0].imms->X_op == O_constant | |
507916b8 | 4282 | && ((i.tm.base_opcode == 0xb8 |
b6f8c7c4 L |
4283 | && i.tm.extension_opcode == None |
4284 | && fits_in_unsigned_long (i.op[0].imms->X_add_number)) | |
4285 | || (fits_in_imm31 (i.op[0].imms->X_add_number) | |
72aea328 JB |
4286 | && ((i.tm.base_opcode == 0x24 |
4287 | || i.tm.base_opcode == 0xa8) | |
b6f8c7c4 L |
4288 | || (i.tm.base_opcode == 0x80 |
4289 | && i.tm.extension_opcode == 0x4) | |
4290 | || ((i.tm.base_opcode == 0xf6 | |
507916b8 | 4291 | || (i.tm.base_opcode | 1) == 0xc7) |
b8364fa7 JB |
4292 | && i.tm.extension_opcode == 0x0))) |
4293 | || (fits_in_imm7 (i.op[0].imms->X_add_number) | |
4294 | && i.tm.base_opcode == 0x83 | |
4295 | && i.tm.extension_opcode == 0x4))) | |
d3d50934 L |
4296 | || (i.types[0].bitfield.qword |
4297 | && ((i.reg_operands == 2 | |
4298 | && i.op[0].regs == i.op[1].regs | |
72aea328 JB |
4299 | && (i.tm.base_opcode == 0x30 |
4300 | || i.tm.base_opcode == 0x28)) | |
d3d50934 L |
4301 | || (i.reg_operands == 1 |
4302 | && i.operands == 1 | |
72aea328 | 4303 | && i.tm.base_opcode == 0x30))))) |
b6f8c7c4 L |
4304 | { |
4305 | /* Optimize: -O: | |
4306 | andq $imm31, %r64 -> andl $imm31, %r32 | |
b8364fa7 | 4307 | andq $imm7, %r64 -> andl $imm7, %r32 |
b6f8c7c4 L |
4308 | testq $imm31, %r64 -> testl $imm31, %r32 |
4309 | xorq %r64, %r64 -> xorl %r32, %r32 | |
4310 | subq %r64, %r64 -> subl %r32, %r32 | |
4311 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4312 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4313 | */ | |
4314 | i.tm.opcode_modifier.norex64 = 1; | |
507916b8 | 4315 | if (i.tm.base_opcode == 0xb8 || (i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4316 | { |
4317 | /* Handle | |
4318 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4319 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4320 | */ | |
4321 | i.tm.operand_types[0].bitfield.imm32 = 1; | |
4322 | i.tm.operand_types[0].bitfield.imm32s = 0; | |
4323 | i.tm.operand_types[0].bitfield.imm64 = 0; | |
4324 | i.types[0].bitfield.imm32 = 1; | |
4325 | i.types[0].bitfield.imm32s = 0; | |
4326 | i.types[0].bitfield.imm64 = 0; | |
4327 | i.types[1].bitfield.dword = 1; | |
4328 | i.types[1].bitfield.qword = 0; | |
507916b8 | 4329 | if ((i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4330 | { |
4331 | /* Handle | |
4332 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4333 | */ | |
507916b8 | 4334 | i.tm.base_opcode = 0xb8; |
b6f8c7c4 | 4335 | i.tm.extension_opcode = None; |
507916b8 | 4336 | i.tm.opcode_modifier.w = 0; |
b6f8c7c4 L |
4337 | i.tm.opcode_modifier.modrm = 0; |
4338 | } | |
4339 | } | |
4340 | } | |
5641ec01 JB |
4341 | else if (optimize > 1 |
4342 | && !optimize_for_space | |
389d00a5 | 4343 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
5641ec01 JB |
4344 | && i.reg_operands == 2 |
4345 | && i.op[0].regs == i.op[1].regs | |
4346 | && ((i.tm.base_opcode & ~(Opcode_D | 1)) == 0x8 | |
4347 | || (i.tm.base_opcode & ~(Opcode_D | 1)) == 0x20) | |
4348 | && (flag_code != CODE_64BIT || !i.types[0].bitfield.dword)) | |
4349 | { | |
4350 | /* Optimize: -O2: | |
4351 | andb %rN, %rN -> testb %rN, %rN | |
4352 | andw %rN, %rN -> testw %rN, %rN | |
4353 | andq %rN, %rN -> testq %rN, %rN | |
4354 | orb %rN, %rN -> testb %rN, %rN | |
4355 | orw %rN, %rN -> testw %rN, %rN | |
4356 | orq %rN, %rN -> testq %rN, %rN | |
4357 | ||
4358 | and outside of 64-bit mode | |
4359 | ||
4360 | andl %rN, %rN -> testl %rN, %rN | |
4361 | orl %rN, %rN -> testl %rN, %rN | |
4362 | */ | |
4363 | i.tm.base_opcode = 0x84 | (i.tm.base_opcode & 1); | |
4364 | } | |
99112332 | 4365 | else if (i.reg_operands == 3 |
b6f8c7c4 L |
4366 | && i.op[0].regs == i.op[1].regs |
4367 | && !i.types[2].bitfield.xmmword | |
4368 | && (i.tm.opcode_modifier.vex | |
6225c532 | 4369 | || ((!i.mask.reg || i.mask.zeroing) |
e771e7c9 | 4370 | && is_evex_encoding (&i.tm) |
80c34c38 | 4371 | && (i.vec_encoding != vex_encoding_evex |
dd22218c | 4372 | || cpu_arch_isa_flags.bitfield.cpuavx512vl |
80c34c38 | 4373 | || i.tm.cpu_flags.bitfield.cpuavx512vl |
7091c612 | 4374 | || (i.tm.operand_types[2].bitfield.zmmword |
dd22218c | 4375 | && i.types[2].bitfield.ymmword)))) |
5844ccaa JB |
4376 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
4377 | && ((i.tm.base_opcode | 2) == 0x57 | |
4378 | || i.tm.base_opcode == 0xdf | |
4379 | || i.tm.base_opcode == 0xef | |
4380 | || (i.tm.base_opcode | 3) == 0xfb | |
4381 | || i.tm.base_opcode == 0x42 | |
4382 | || i.tm.base_opcode == 0x47)) | |
b6f8c7c4 | 4383 | { |
99112332 | 4384 | /* Optimize: -O1: |
8305403a L |
4385 | VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd, |
4386 | vpsubq and vpsubw: | |
b6f8c7c4 L |
4387 | EVEX VOP %zmmM, %zmmM, %zmmN |
4388 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4389 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4390 | EVEX VOP %ymmM, %ymmM, %ymmN |
4391 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4392 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4393 | VEX VOP %ymmM, %ymmM, %ymmN |
4394 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4395 | VOP, one of vpandn and vpxor: | |
4396 | VEX VOP %ymmM, %ymmM, %ymmN | |
4397 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4398 | VOP, one of vpandnd and vpandnq: | |
4399 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4400 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4401 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4402 | EVEX VOP %ymmM, %ymmM, %ymmN |
4403 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4404 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4405 | VOP, one of vpxord and vpxorq: |
4406 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4407 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4408 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4409 | EVEX VOP %ymmM, %ymmM, %ymmN |
4410 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4411 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
1424ad86 JB |
4412 | VOP, one of kxord and kxorq: |
4413 | VEX VOP %kM, %kM, %kN | |
4414 | -> VEX kxorw %kM, %kM, %kN | |
4415 | VOP, one of kandnd and kandnq: | |
4416 | VEX VOP %kM, %kM, %kN | |
4417 | -> VEX kandnw %kM, %kM, %kN | |
b6f8c7c4 | 4418 | */ |
e771e7c9 | 4419 | if (is_evex_encoding (&i.tm)) |
b6f8c7c4 | 4420 | { |
7b1d7ca1 | 4421 | if (i.vec_encoding != vex_encoding_evex) |
b6f8c7c4 L |
4422 | { |
4423 | i.tm.opcode_modifier.vex = VEX128; | |
4424 | i.tm.opcode_modifier.vexw = VEXW0; | |
4425 | i.tm.opcode_modifier.evex = 0; | |
4426 | } | |
7b1d7ca1 | 4427 | else if (optimize > 1) |
dd22218c L |
4428 | i.tm.opcode_modifier.evex = EVEX128; |
4429 | else | |
4430 | return; | |
b6f8c7c4 | 4431 | } |
f74a6307 | 4432 | else if (i.tm.operand_types[0].bitfield.class == RegMask) |
1424ad86 | 4433 | { |
35648716 | 4434 | i.tm.opcode_modifier.opcodeprefix = PREFIX_NONE; |
1424ad86 JB |
4435 | i.tm.opcode_modifier.vexw = VEXW0; |
4436 | } | |
b6f8c7c4 L |
4437 | else |
4438 | i.tm.opcode_modifier.vex = VEX128; | |
4439 | ||
4440 | if (i.tm.opcode_modifier.vex) | |
4441 | for (j = 0; j < 3; j++) | |
4442 | { | |
4443 | i.types[j].bitfield.xmmword = 1; | |
4444 | i.types[j].bitfield.ymmword = 0; | |
4445 | } | |
4446 | } | |
392a5972 | 4447 | else if (i.vec_encoding != vex_encoding_evex |
97ed31ae | 4448 | && !i.types[0].bitfield.zmmword |
392a5972 | 4449 | && !i.types[1].bitfield.zmmword |
6225c532 | 4450 | && !i.mask.reg |
a5748e0d | 4451 | && !i.broadcast.bytes |
97ed31ae | 4452 | && is_evex_encoding (&i.tm) |
35648716 JB |
4453 | && ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x6f |
4454 | || (i.tm.base_opcode & ~4) == 0xdb | |
4455 | || (i.tm.base_opcode & ~4) == 0xeb) | |
97ed31ae L |
4456 | && i.tm.extension_opcode == None) |
4457 | { | |
4458 | /* Optimize: -O1: | |
4459 | VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16, | |
4460 | vmovdqu32 and vmovdqu64: | |
4461 | EVEX VOP %xmmM, %xmmN | |
4462 | -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16) | |
4463 | EVEX VOP %ymmM, %ymmN | |
4464 | -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16) | |
4465 | EVEX VOP %xmmM, mem | |
4466 | -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16) | |
4467 | EVEX VOP %ymmM, mem | |
4468 | -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16) | |
4469 | EVEX VOP mem, %xmmN | |
4470 | -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16) | |
4471 | EVEX VOP mem, %ymmN | |
4472 | -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16) | |
a0a1771e JB |
4473 | VOP, one of vpand, vpandn, vpor, vpxor: |
4474 | EVEX VOP{d,q} %xmmL, %xmmM, %xmmN | |
4475 | -> VEX VOP %xmmL, %xmmM, %xmmN (L, M, and N < 16) | |
4476 | EVEX VOP{d,q} %ymmL, %ymmM, %ymmN | |
4477 | -> VEX VOP %ymmL, %ymmM, %ymmN (L, M, and N < 16) | |
4478 | EVEX VOP{d,q} mem, %xmmM, %xmmN | |
4479 | -> VEX VOP mem, %xmmM, %xmmN (M and N < 16) | |
4480 | EVEX VOP{d,q} mem, %ymmM, %ymmN | |
4481 | -> VEX VOP mem, %ymmM, %ymmN (M and N < 16) | |
97ed31ae | 4482 | */ |
a0a1771e | 4483 | for (j = 0; j < i.operands; j++) |
392a5972 L |
4484 | if (operand_type_check (i.types[j], disp) |
4485 | && i.op[j].disps->X_op == O_constant) | |
4486 | { | |
4487 | /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix | |
4488 | has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4 | |
4489 | bytes, we choose EVEX Disp8 over VEX Disp32. */ | |
4490 | int evex_disp8, vex_disp8; | |
4491 | unsigned int memshift = i.memshift; | |
4492 | offsetT n = i.op[j].disps->X_add_number; | |
4493 | ||
4494 | evex_disp8 = fits_in_disp8 (n); | |
4495 | i.memshift = 0; | |
4496 | vex_disp8 = fits_in_disp8 (n); | |
4497 | if (evex_disp8 != vex_disp8) | |
4498 | { | |
4499 | i.memshift = memshift; | |
4500 | return; | |
4501 | } | |
4502 | ||
4503 | i.types[j].bitfield.disp8 = vex_disp8; | |
4504 | break; | |
4505 | } | |
35648716 JB |
4506 | if ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x6f |
4507 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2) | |
4508 | i.tm.opcode_modifier.opcodeprefix = PREFIX_0XF3; | |
97ed31ae L |
4509 | i.tm.opcode_modifier.vex |
4510 | = i.types[0].bitfield.ymmword ? VEX256 : VEX128; | |
4511 | i.tm.opcode_modifier.vexw = VEXW0; | |
79dec6b7 | 4512 | /* VPAND, VPOR, and VPXOR are commutative. */ |
35648716 | 4513 | if (i.reg_operands == 3 && i.tm.base_opcode != 0xdf) |
79dec6b7 | 4514 | i.tm.opcode_modifier.commutative = 1; |
97ed31ae L |
4515 | i.tm.opcode_modifier.evex = 0; |
4516 | i.tm.opcode_modifier.masking = 0; | |
a0a1771e | 4517 | i.tm.opcode_modifier.broadcast = 0; |
97ed31ae L |
4518 | i.tm.opcode_modifier.disp8memshift = 0; |
4519 | i.memshift = 0; | |
a0a1771e JB |
4520 | if (j < i.operands) |
4521 | i.types[j].bitfield.disp8 | |
4522 | = fits_in_disp8 (i.op[j].disps->X_add_number); | |
97ed31ae | 4523 | } |
b6f8c7c4 L |
4524 | } |
4525 | ||
ae531041 L |
4526 | /* Return non-zero for load instruction. */ |
4527 | ||
4528 | static int | |
4529 | load_insn_p (void) | |
4530 | { | |
4531 | unsigned int dest; | |
4532 | int any_vex_p = is_any_vex_encoding (&i.tm); | |
4533 | unsigned int base_opcode = i.tm.base_opcode | 1; | |
4534 | ||
4535 | if (!any_vex_p) | |
4536 | { | |
ef07be45 CL |
4537 | /* Anysize insns: lea, invlpg, clflush, prefetch*, bndmk, bndcl, bndcu, |
4538 | bndcn, bndstx, bndldx, clflushopt, clwb, cldemote. */ | |
255571cd | 4539 | if (i.tm.opcode_modifier.operandconstraint == ANY_SIZE) |
ae531041 L |
4540 | return 0; |
4541 | ||
389d00a5 JB |
4542 | /* pop. */ |
4543 | if (strcmp (i.tm.name, "pop") == 0) | |
4544 | return 1; | |
4545 | } | |
4546 | ||
4547 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE) | |
4548 | { | |
4549 | /* popf, popa. */ | |
4550 | if (i.tm.base_opcode == 0x9d | |
a09f656b | 4551 | || i.tm.base_opcode == 0x61) |
ae531041 L |
4552 | return 1; |
4553 | ||
4554 | /* movs, cmps, lods, scas. */ | |
4555 | if ((i.tm.base_opcode | 0xb) == 0xaf) | |
4556 | return 1; | |
4557 | ||
a09f656b | 4558 | /* outs, xlatb. */ |
4559 | if (base_opcode == 0x6f | |
4560 | || i.tm.base_opcode == 0xd7) | |
ae531041 | 4561 | return 1; |
a09f656b | 4562 | /* NB: For AMD-specific insns with implicit memory operands, |
4563 | they're intentionally not covered. */ | |
ae531041 L |
4564 | } |
4565 | ||
4566 | /* No memory operand. */ | |
4567 | if (!i.mem_operands) | |
4568 | return 0; | |
4569 | ||
4570 | if (any_vex_p) | |
4571 | { | |
4572 | /* vldmxcsr. */ | |
4573 | if (i.tm.base_opcode == 0xae | |
4574 | && i.tm.opcode_modifier.vex | |
441f6aca | 4575 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
35648716 | 4576 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE |
ae531041 L |
4577 | && i.tm.extension_opcode == 2) |
4578 | return 1; | |
4579 | } | |
389d00a5 | 4580 | else if (i.tm.opcode_modifier.opcodespace == SPACE_BASE) |
ae531041 L |
4581 | { |
4582 | /* test, not, neg, mul, imul, div, idiv. */ | |
4583 | if ((i.tm.base_opcode == 0xf6 || i.tm.base_opcode == 0xf7) | |
4584 | && i.tm.extension_opcode != 1) | |
4585 | return 1; | |
4586 | ||
4587 | /* inc, dec. */ | |
4588 | if (base_opcode == 0xff && i.tm.extension_opcode <= 1) | |
4589 | return 1; | |
4590 | ||
4591 | /* add, or, adc, sbb, and, sub, xor, cmp. */ | |
4592 | if (i.tm.base_opcode >= 0x80 && i.tm.base_opcode <= 0x83) | |
4593 | return 1; | |
4594 | ||
ae531041 L |
4595 | /* rol, ror, rcl, rcr, shl/sal, shr, sar. */ |
4596 | if ((base_opcode == 0xc1 | |
4597 | || (i.tm.base_opcode >= 0xd0 && i.tm.base_opcode <= 0xd3)) | |
4598 | && i.tm.extension_opcode != 6) | |
4599 | return 1; | |
4600 | ||
ae531041 | 4601 | /* Check for x87 instructions. */ |
389d00a5 | 4602 | if (base_opcode >= 0xd8 && base_opcode <= 0xdf) |
ae531041 L |
4603 | { |
4604 | /* Skip fst, fstp, fstenv, fstcw. */ | |
4605 | if (i.tm.base_opcode == 0xd9 | |
4606 | && (i.tm.extension_opcode == 2 | |
4607 | || i.tm.extension_opcode == 3 | |
4608 | || i.tm.extension_opcode == 6 | |
4609 | || i.tm.extension_opcode == 7)) | |
4610 | return 0; | |
4611 | ||
4612 | /* Skip fisttp, fist, fistp, fstp. */ | |
4613 | if (i.tm.base_opcode == 0xdb | |
4614 | && (i.tm.extension_opcode == 1 | |
4615 | || i.tm.extension_opcode == 2 | |
4616 | || i.tm.extension_opcode == 3 | |
4617 | || i.tm.extension_opcode == 7)) | |
4618 | return 0; | |
4619 | ||
4620 | /* Skip fisttp, fst, fstp, fsave, fstsw. */ | |
4621 | if (i.tm.base_opcode == 0xdd | |
4622 | && (i.tm.extension_opcode == 1 | |
4623 | || i.tm.extension_opcode == 2 | |
4624 | || i.tm.extension_opcode == 3 | |
4625 | || i.tm.extension_opcode == 6 | |
4626 | || i.tm.extension_opcode == 7)) | |
4627 | return 0; | |
4628 | ||
4629 | /* Skip fisttp, fist, fistp, fbstp, fistp. */ | |
4630 | if (i.tm.base_opcode == 0xdf | |
4631 | && (i.tm.extension_opcode == 1 | |
4632 | || i.tm.extension_opcode == 2 | |
4633 | || i.tm.extension_opcode == 3 | |
4634 | || i.tm.extension_opcode == 6 | |
4635 | || i.tm.extension_opcode == 7)) | |
4636 | return 0; | |
4637 | ||
4638 | return 1; | |
4639 | } | |
4640 | } | |
389d00a5 JB |
4641 | else if (i.tm.opcode_modifier.opcodespace == SPACE_0F) |
4642 | { | |
4643 | /* bt, bts, btr, btc. */ | |
4644 | if (i.tm.base_opcode == 0xba | |
4645 | && (i.tm.extension_opcode >= 4 && i.tm.extension_opcode <= 7)) | |
4646 | return 1; | |
4647 | ||
4648 | /* cmpxchg8b, cmpxchg16b, xrstors, vmptrld. */ | |
4649 | if (i.tm.base_opcode == 0xc7 | |
4650 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE | |
4651 | && (i.tm.extension_opcode == 1 || i.tm.extension_opcode == 3 | |
4652 | || i.tm.extension_opcode == 6)) | |
4653 | return 1; | |
4654 | ||
4655 | /* fxrstor, ldmxcsr, xrstor. */ | |
4656 | if (i.tm.base_opcode == 0xae | |
4657 | && (i.tm.extension_opcode == 1 | |
4658 | || i.tm.extension_opcode == 2 | |
4659 | || i.tm.extension_opcode == 5)) | |
4660 | return 1; | |
4661 | ||
4662 | /* lgdt, lidt, lmsw. */ | |
4663 | if (i.tm.base_opcode == 0x01 | |
4664 | && (i.tm.extension_opcode == 2 | |
4665 | || i.tm.extension_opcode == 3 | |
4666 | || i.tm.extension_opcode == 6)) | |
4667 | return 1; | |
4668 | } | |
ae531041 L |
4669 | |
4670 | dest = i.operands - 1; | |
4671 | ||
4672 | /* Check fake imm8 operand and 3 source operands. */ | |
4673 | if ((i.tm.opcode_modifier.immext | |
4674 | || i.tm.opcode_modifier.vexsources == VEX3SOURCES) | |
4675 | && i.types[dest].bitfield.imm8) | |
4676 | dest--; | |
4677 | ||
389d00a5 JB |
4678 | /* add, or, adc, sbb, and, sub, xor, cmp, test, xchg. */ |
4679 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE | |
ae531041 L |
4680 | && (base_opcode == 0x1 |
4681 | || base_opcode == 0x9 | |
4682 | || base_opcode == 0x11 | |
4683 | || base_opcode == 0x19 | |
4684 | || base_opcode == 0x21 | |
4685 | || base_opcode == 0x29 | |
4686 | || base_opcode == 0x31 | |
4687 | || base_opcode == 0x39 | |
389d00a5 JB |
4688 | || (base_opcode | 2) == 0x87)) |
4689 | return 1; | |
4690 | ||
4691 | /* xadd. */ | |
4692 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4693 | && base_opcode == 0xc1) | |
ae531041 L |
4694 | return 1; |
4695 | ||
4696 | /* Check for load instruction. */ | |
4697 | return (i.types[dest].bitfield.class != ClassNone | |
4698 | || i.types[dest].bitfield.instance == Accum); | |
4699 | } | |
4700 | ||
4701 | /* Output lfence, 0xfaee8, after instruction. */ | |
4702 | ||
4703 | static void | |
4704 | insert_lfence_after (void) | |
4705 | { | |
4706 | if (lfence_after_load && load_insn_p ()) | |
4707 | { | |
a09f656b | 4708 | /* There are also two REP string instructions that require |
4709 | special treatment. Specifically, the compare string (CMPS) | |
4710 | and scan string (SCAS) instructions set EFLAGS in a manner | |
4711 | that depends on the data being compared/scanned. When used | |
4712 | with a REP prefix, the number of iterations may therefore | |
4713 | vary depending on this data. If the data is a program secret | |
4714 | chosen by the adversary using an LVI method, | |
4715 | then this data-dependent behavior may leak some aspect | |
4716 | of the secret. */ | |
4717 | if (((i.tm.base_opcode | 0x1) == 0xa7 | |
4718 | || (i.tm.base_opcode | 0x1) == 0xaf) | |
4719 | && i.prefix[REP_PREFIX]) | |
4720 | { | |
4721 | as_warn (_("`%s` changes flags which would affect control flow behavior"), | |
4722 | i.tm.name); | |
4723 | } | |
ae531041 L |
4724 | char *p = frag_more (3); |
4725 | *p++ = 0xf; | |
4726 | *p++ = 0xae; | |
4727 | *p = 0xe8; | |
4728 | } | |
4729 | } | |
4730 | ||
4731 | /* Output lfence, 0xfaee8, before instruction. */ | |
4732 | ||
4733 | static void | |
4734 | insert_lfence_before (void) | |
4735 | { | |
4736 | char *p; | |
4737 | ||
389d00a5 | 4738 | if (i.tm.opcode_modifier.opcodespace != SPACE_BASE) |
ae531041 L |
4739 | return; |
4740 | ||
4741 | if (i.tm.base_opcode == 0xff | |
4742 | && (i.tm.extension_opcode == 2 || i.tm.extension_opcode == 4)) | |
4743 | { | |
4744 | /* Insert lfence before indirect branch if needed. */ | |
4745 | ||
4746 | if (lfence_before_indirect_branch == lfence_branch_none) | |
4747 | return; | |
4748 | ||
4749 | if (i.operands != 1) | |
4750 | abort (); | |
4751 | ||
4752 | if (i.reg_operands == 1) | |
4753 | { | |
4754 | /* Indirect branch via register. Don't insert lfence with | |
4755 | -mlfence-after-load=yes. */ | |
4756 | if (lfence_after_load | |
4757 | || lfence_before_indirect_branch == lfence_branch_memory) | |
4758 | return; | |
4759 | } | |
4760 | else if (i.mem_operands == 1 | |
4761 | && lfence_before_indirect_branch != lfence_branch_register) | |
4762 | { | |
4763 | as_warn (_("indirect `%s` with memory operand should be avoided"), | |
4764 | i.tm.name); | |
4765 | return; | |
4766 | } | |
4767 | else | |
4768 | return; | |
4769 | ||
4770 | if (last_insn.kind != last_insn_other | |
4771 | && last_insn.seg == now_seg) | |
4772 | { | |
4773 | as_warn_where (last_insn.file, last_insn.line, | |
4774 | _("`%s` skips -mlfence-before-indirect-branch on `%s`"), | |
4775 | last_insn.name, i.tm.name); | |
4776 | return; | |
4777 | } | |
4778 | ||
4779 | p = frag_more (3); | |
4780 | *p++ = 0xf; | |
4781 | *p++ = 0xae; | |
4782 | *p = 0xe8; | |
4783 | return; | |
4784 | } | |
4785 | ||
503648e4 | 4786 | /* Output or/not/shl and lfence before near ret. */ |
ae531041 L |
4787 | if (lfence_before_ret != lfence_before_ret_none |
4788 | && (i.tm.base_opcode == 0xc2 | |
503648e4 | 4789 | || i.tm.base_opcode == 0xc3)) |
ae531041 L |
4790 | { |
4791 | if (last_insn.kind != last_insn_other | |
4792 | && last_insn.seg == now_seg) | |
4793 | { | |
4794 | as_warn_where (last_insn.file, last_insn.line, | |
4795 | _("`%s` skips -mlfence-before-ret on `%s`"), | |
4796 | last_insn.name, i.tm.name); | |
4797 | return; | |
4798 | } | |
a09f656b | 4799 | |
a09f656b | 4800 | /* Near ret ingore operand size override under CPU64. */ |
503648e4 | 4801 | char prefix = flag_code == CODE_64BIT |
4802 | ? 0x48 | |
4803 | : i.prefix[DATA_PREFIX] ? 0x66 : 0x0; | |
a09f656b | 4804 | |
4805 | if (lfence_before_ret == lfence_before_ret_not) | |
4806 | { | |
4807 | /* not: 0xf71424, may add prefix | |
4808 | for operand size override or 64-bit code. */ | |
4809 | p = frag_more ((prefix ? 2 : 0) + 6 + 3); | |
4810 | if (prefix) | |
4811 | *p++ = prefix; | |
ae531041 L |
4812 | *p++ = 0xf7; |
4813 | *p++ = 0x14; | |
4814 | *p++ = 0x24; | |
a09f656b | 4815 | if (prefix) |
4816 | *p++ = prefix; | |
ae531041 L |
4817 | *p++ = 0xf7; |
4818 | *p++ = 0x14; | |
4819 | *p++ = 0x24; | |
4820 | } | |
a09f656b | 4821 | else |
4822 | { | |
4823 | p = frag_more ((prefix ? 1 : 0) + 4 + 3); | |
4824 | if (prefix) | |
4825 | *p++ = prefix; | |
4826 | if (lfence_before_ret == lfence_before_ret_or) | |
4827 | { | |
4828 | /* or: 0x830c2400, may add prefix | |
4829 | for operand size override or 64-bit code. */ | |
4830 | *p++ = 0x83; | |
4831 | *p++ = 0x0c; | |
4832 | } | |
4833 | else | |
4834 | { | |
4835 | /* shl: 0xc1242400, may add prefix | |
4836 | for operand size override or 64-bit code. */ | |
4837 | *p++ = 0xc1; | |
4838 | *p++ = 0x24; | |
4839 | } | |
4840 | ||
4841 | *p++ = 0x24; | |
4842 | *p++ = 0x0; | |
4843 | } | |
4844 | ||
ae531041 L |
4845 | *p++ = 0xf; |
4846 | *p++ = 0xae; | |
4847 | *p = 0xe8; | |
4848 | } | |
4849 | } | |
4850 | ||
252b5132 RH |
4851 | /* This is the guts of the machine-dependent assembler. LINE points to a |
4852 | machine dependent instruction. This function is supposed to emit | |
4853 | the frags/bytes it assembles to. */ | |
4854 | ||
4855 | void | |
65da13b5 | 4856 | md_assemble (char *line) |
252b5132 | 4857 | { |
40fb9820 | 4858 | unsigned int j; |
83b16ac6 | 4859 | char mnemonic[MAX_MNEM_SIZE], mnem_suffix; |
d3ce72d0 | 4860 | const insn_template *t; |
252b5132 | 4861 | |
47926f60 | 4862 | /* Initialize globals. */ |
252b5132 | 4863 | memset (&i, '\0', sizeof (i)); |
ca5312a2 | 4864 | i.rounding.type = rc_none; |
252b5132 | 4865 | for (j = 0; j < MAX_OPERANDS; j++) |
1ae12ab7 | 4866 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
4867 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
4868 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 4869 | save_stack_p = save_stack; |
252b5132 RH |
4870 | |
4871 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
4872 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 4873 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 4874 | |
29b0f896 AM |
4875 | line = parse_insn (line, mnemonic); |
4876 | if (line == NULL) | |
4877 | return; | |
83b16ac6 | 4878 | mnem_suffix = i.suffix; |
252b5132 | 4879 | |
29b0f896 | 4880 | line = parse_operands (line, mnemonic); |
ee86248c | 4881 | this_operand = -1; |
8325cc63 JB |
4882 | xfree (i.memop1_string); |
4883 | i.memop1_string = NULL; | |
29b0f896 AM |
4884 | if (line == NULL) |
4885 | return; | |
252b5132 | 4886 | |
29b0f896 AM |
4887 | /* Now we've parsed the mnemonic into a set of templates, and have the |
4888 | operands at hand. */ | |
4889 | ||
b630c145 | 4890 | /* All Intel opcodes have reversed operands except for "bound", "enter", |
c0e54661 | 4891 | "invlpg*", "monitor*", "mwait*", "tpause", "umwait", "pvalidate", |
b0e8fa7f TJ |
4892 | "rmpadjust", "rmpupdate", and "rmpquery". We also don't reverse |
4893 | intersegment "jmp" and "call" instructions with 2 immediate operands so | |
4894 | that the immediate segment precedes the offset consistently in Intel and | |
4895 | AT&T modes. */ | |
4d456e3d L |
4896 | if (intel_syntax |
4897 | && i.operands > 1 | |
29b0f896 | 4898 | && (strcmp (mnemonic, "bound") != 0) |
c0e54661 | 4899 | && (strncmp (mnemonic, "invlpg", 6) != 0) |
d34049e8 ML |
4900 | && !startswith (mnemonic, "monitor") |
4901 | && !startswith (mnemonic, "mwait") | |
c0e54661 | 4902 | && (strcmp (mnemonic, "pvalidate") != 0) |
d34049e8 | 4903 | && !startswith (mnemonic, "rmp") |
b630c145 JB |
4904 | && (strcmp (mnemonic, "tpause") != 0) |
4905 | && (strcmp (mnemonic, "umwait") != 0) | |
47c0279b JB |
4906 | && !(i.operands == 2 |
4907 | && operand_type_check (i.types[0], imm) | |
40fb9820 | 4908 | && operand_type_check (i.types[1], imm))) |
29b0f896 AM |
4909 | swap_operands (); |
4910 | ||
ec56d5c0 JB |
4911 | /* The order of the immediates should be reversed |
4912 | for 2 immediates extrq and insertq instructions */ | |
4913 | if (i.imm_operands == 2 | |
4914 | && (strcmp (mnemonic, "extrq") == 0 | |
4915 | || strcmp (mnemonic, "insertq") == 0)) | |
4916 | swap_2_operands (0, 1); | |
4917 | ||
29b0f896 AM |
4918 | if (i.imm_operands) |
4919 | optimize_imm (); | |
4920 | ||
9386188e JB |
4921 | if (i.disp_operands && !want_disp32 (current_templates->start) |
4922 | && (!current_templates->start->opcode_modifier.jump | |
4923 | || i.jumpabsolute || i.types[0].bitfield.baseindex)) | |
cce08655 JB |
4924 | { |
4925 | for (j = 0; j < i.operands; ++j) | |
4926 | { | |
4927 | const expressionS *exp = i.op[j].disps; | |
4928 | ||
4929 | if (!operand_type_check (i.types[j], disp)) | |
4930 | continue; | |
4931 | ||
4932 | if (exp->X_op != O_constant) | |
4933 | continue; | |
4934 | ||
4935 | /* Since displacement is signed extended to 64bit, don't allow | |
a775efc8 | 4936 | disp32 if it is out of range. */ |
cce08655 JB |
4937 | if (fits_in_signed_long (exp->X_add_number)) |
4938 | continue; | |
4939 | ||
a775efc8 | 4940 | i.types[j].bitfield.disp32 = 0; |
cce08655 JB |
4941 | if (i.types[j].bitfield.baseindex) |
4942 | { | |
f493c217 AM |
4943 | as_bad (_("0x%" PRIx64 " out of range of signed 32bit displacement"), |
4944 | (uint64_t) exp->X_add_number); | |
cce08655 JB |
4945 | return; |
4946 | } | |
4947 | } | |
4948 | } | |
4949 | ||
b300c311 L |
4950 | /* Don't optimize displacement for movabs since it only takes 64bit |
4951 | displacement. */ | |
4952 | if (i.disp_operands | |
1a42a9fe | 4953 | && i.disp_encoding <= disp_encoding_8bit |
862be3fb L |
4954 | && (flag_code != CODE_64BIT |
4955 | || strcmp (mnemonic, "movabs") != 0)) | |
4956 | optimize_disp (); | |
29b0f896 AM |
4957 | |
4958 | /* Next, we find a template that matches the given insn, | |
4959 | making sure the overlap of the given operands types is consistent | |
4960 | with the template operand types. */ | |
252b5132 | 4961 | |
83b16ac6 | 4962 | if (!(t = match_template (mnem_suffix))) |
29b0f896 | 4963 | return; |
252b5132 | 4964 | |
7bab8ab5 | 4965 | if (sse_check != check_none |
ffb86450 JB |
4966 | /* The opcode space check isn't strictly needed; it's there only to |
4967 | bypass the logic below when easily possible. */ | |
4968 | && t->opcode_modifier.opcodespace >= SPACE_0F | |
4969 | && t->opcode_modifier.opcodespace <= SPACE_0F3A | |
4970 | && !i.tm.cpu_flags.bitfield.cpusse4a | |
4971 | && !is_any_vex_encoding (t)) | |
daf50ae7 | 4972 | { |
ffb86450 JB |
4973 | bool simd = false; |
4974 | ||
4975 | for (j = 0; j < t->operands; ++j) | |
4976 | { | |
4977 | if (t->operand_types[j].bitfield.class == RegMMX) | |
4978 | break; | |
4979 | if (t->operand_types[j].bitfield.class == RegSIMD) | |
4980 | simd = true; | |
4981 | } | |
4982 | ||
4983 | if (j >= t->operands && simd) | |
4984 | (sse_check == check_warning | |
4985 | ? as_warn | |
4986 | : as_bad) (_("SSE instruction `%s' is used"), i.tm.name); | |
daf50ae7 L |
4987 | } |
4988 | ||
40fb9820 | 4989 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
4990 | if (!add_prefix (FWAIT_OPCODE)) |
4991 | return; | |
252b5132 | 4992 | |
d5de92cf | 4993 | /* Check if REP prefix is OK. */ |
742732c7 | 4994 | if (i.rep_prefix && i.tm.opcode_modifier.prefixok != PrefixRep) |
d5de92cf L |
4995 | { |
4996 | as_bad (_("invalid instruction `%s' after `%s'"), | |
4997 | i.tm.name, i.rep_prefix); | |
4998 | return; | |
4999 | } | |
5000 | ||
c1ba0266 L |
5001 | /* Check for lock without a lockable instruction. Destination operand |
5002 | must be memory unless it is xchg (0x86). */ | |
c32fa91d | 5003 | if (i.prefix[LOCK_PREFIX] |
742732c7 | 5004 | && (i.tm.opcode_modifier.prefixok < PrefixLock |
c1ba0266 L |
5005 | || i.mem_operands == 0 |
5006 | || (i.tm.base_opcode != 0x86 | |
8dc0818e | 5007 | && !(i.flags[i.operands - 1] & Operand_Mem)))) |
c32fa91d L |
5008 | { |
5009 | as_bad (_("expecting lockable instruction after `lock'")); | |
5010 | return; | |
5011 | } | |
5012 | ||
40d231b4 JB |
5013 | /* Check for data size prefix on VEX/XOP/EVEX encoded and SIMD insns. */ |
5014 | if (i.prefix[DATA_PREFIX] | |
5015 | && (is_any_vex_encoding (&i.tm) | |
5016 | || i.tm.operand_types[i.imm_operands].bitfield.class >= RegMMX | |
5017 | || i.tm.operand_types[i.imm_operands + 1].bitfield.class >= RegMMX)) | |
7a8655d2 JB |
5018 | { |
5019 | as_bad (_("data size prefix invalid with `%s'"), i.tm.name); | |
5020 | return; | |
5021 | } | |
5022 | ||
42164a71 | 5023 | /* Check if HLE prefix is OK. */ |
165de32a | 5024 | if (i.hle_prefix && !check_hle ()) |
42164a71 L |
5025 | return; |
5026 | ||
7e8b059b L |
5027 | /* Check BND prefix. */ |
5028 | if (i.bnd_prefix && !i.tm.opcode_modifier.bndprefixok) | |
5029 | as_bad (_("expecting valid branch instruction after `bnd'")); | |
5030 | ||
04ef582a | 5031 | /* Check NOTRACK prefix. */ |
742732c7 | 5032 | if (i.notrack_prefix && i.tm.opcode_modifier.prefixok != PrefixNoTrack) |
9fef80d6 | 5033 | as_bad (_("expecting indirect branch instruction after `notrack'")); |
04ef582a | 5034 | |
327e8c42 JB |
5035 | if (i.tm.cpu_flags.bitfield.cpumpx) |
5036 | { | |
5037 | if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX]) | |
5038 | as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions.")); | |
5039 | else if (flag_code != CODE_16BIT | |
5040 | ? i.prefix[ADDR_PREFIX] | |
5041 | : i.mem_operands && !i.prefix[ADDR_PREFIX]) | |
5042 | as_bad (_("16-bit address isn't allowed in MPX instructions")); | |
5043 | } | |
7e8b059b L |
5044 | |
5045 | /* Insert BND prefix. */ | |
76d3a78a JB |
5046 | if (add_bnd_prefix && i.tm.opcode_modifier.bndprefixok) |
5047 | { | |
5048 | if (!i.prefix[BND_PREFIX]) | |
5049 | add_prefix (BND_PREFIX_OPCODE); | |
5050 | else if (i.prefix[BND_PREFIX] != BND_PREFIX_OPCODE) | |
5051 | { | |
5052 | as_warn (_("replacing `rep'/`repe' prefix by `bnd'")); | |
5053 | i.prefix[BND_PREFIX] = BND_PREFIX_OPCODE; | |
5054 | } | |
5055 | } | |
7e8b059b | 5056 | |
29b0f896 | 5057 | /* Check string instruction segment overrides. */ |
51c8edf6 | 5058 | if (i.tm.opcode_modifier.isstring >= IS_STRING_ES_OP0) |
29b0f896 | 5059 | { |
51c8edf6 | 5060 | gas_assert (i.mem_operands); |
29b0f896 | 5061 | if (!check_string ()) |
5dd0794d | 5062 | return; |
fc0763e6 | 5063 | i.disp_operands = 0; |
29b0f896 | 5064 | } |
5dd0794d | 5065 | |
9373f275 L |
5066 | /* The memory operand of (%dx) should be only used with input/output |
5067 | instructions (base opcodes: 0x6c, 0x6e, 0xec, 0xee). */ | |
5068 | if (i.input_output_operand | |
5069 | && ((i.tm.base_opcode | 0x82) != 0xee | |
5070 | || i.tm.opcode_modifier.opcodespace != SPACE_BASE)) | |
5071 | { | |
5072 | as_bad (_("input/output port address isn't allowed with `%s'"), | |
5073 | i.tm.name); | |
5074 | return; | |
5075 | } | |
5076 | ||
b6f8c7c4 L |
5077 | if (optimize && !i.no_optimize && i.tm.opcode_modifier.optimize) |
5078 | optimize_encoding (); | |
5079 | ||
c8480b58 L |
5080 | if (use_unaligned_vector_move) |
5081 | encode_with_unaligned_vector_move (); | |
5082 | ||
29b0f896 AM |
5083 | if (!process_suffix ()) |
5084 | return; | |
e413e4e9 | 5085 | |
ef07be45 CL |
5086 | /* Check if IP-relative addressing requirements can be satisfied. */ |
5087 | if (i.tm.cpu_flags.bitfield.cpuprefetchi | |
5088 | && !(i.base_reg && i.base_reg->reg_num == RegIP)) | |
f2462532 | 5089 | as_warn (_("'%s' only supports RIP-relative address"), i.tm.name); |
ef07be45 | 5090 | |
921eafea | 5091 | /* Update operand types and check extended states. */ |
bc0844ae | 5092 | for (j = 0; j < i.operands; j++) |
921eafea L |
5093 | { |
5094 | i.types[j] = operand_type_and (i.types[j], i.tm.operand_types[j]); | |
3d70986f | 5095 | switch (i.tm.operand_types[j].bitfield.class) |
921eafea L |
5096 | { |
5097 | default: | |
5098 | break; | |
5099 | case RegMMX: | |
5100 | i.xstate |= xstate_mmx; | |
5101 | break; | |
5102 | case RegMask: | |
32930e4e | 5103 | i.xstate |= xstate_mask; |
921eafea L |
5104 | break; |
5105 | case RegSIMD: | |
3d70986f | 5106 | if (i.tm.operand_types[j].bitfield.tmmword) |
921eafea | 5107 | i.xstate |= xstate_tmm; |
3d70986f | 5108 | else if (i.tm.operand_types[j].bitfield.zmmword) |
921eafea | 5109 | i.xstate |= xstate_zmm; |
3d70986f | 5110 | else if (i.tm.operand_types[j].bitfield.ymmword) |
921eafea | 5111 | i.xstate |= xstate_ymm; |
3d70986f | 5112 | else if (i.tm.operand_types[j].bitfield.xmmword) |
921eafea L |
5113 | i.xstate |= xstate_xmm; |
5114 | break; | |
5115 | } | |
5116 | } | |
bc0844ae | 5117 | |
29b0f896 AM |
5118 | /* Make still unresolved immediate matches conform to size of immediate |
5119 | given in i.suffix. */ | |
5120 | if (!finalize_imm ()) | |
5121 | return; | |
252b5132 | 5122 | |
40fb9820 | 5123 | if (i.types[0].bitfield.imm1) |
29b0f896 | 5124 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 5125 | |
9afe6eb8 L |
5126 | /* We only need to check those implicit registers for instructions |
5127 | with 3 operands or less. */ | |
5128 | if (i.operands <= 3) | |
5129 | for (j = 0; j < i.operands; j++) | |
75e5731b JB |
5130 | if (i.types[j].bitfield.instance != InstanceNone |
5131 | && !i.types[j].bitfield.xmmword) | |
9afe6eb8 | 5132 | i.reg_operands--; |
40fb9820 | 5133 | |
29b0f896 AM |
5134 | /* For insns with operands there are more diddles to do to the opcode. */ |
5135 | if (i.operands) | |
5136 | { | |
5137 | if (!process_operands ()) | |
5138 | return; | |
5139 | } | |
255571cd | 5140 | else if (!quiet_warnings && i.tm.opcode_modifier.operandconstraint == UGH) |
29b0f896 AM |
5141 | { |
5142 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
5143 | as_warn (_("translating to `%sp'"), i.tm.name); | |
5144 | } | |
252b5132 | 5145 | |
7a8655d2 | 5146 | if (is_any_vex_encoding (&i.tm)) |
9e5e5283 | 5147 | { |
c1dc7af5 | 5148 | if (!cpu_arch_flags.bitfield.cpui286) |
9e5e5283 | 5149 | { |
c1dc7af5 | 5150 | as_bad (_("instruction `%s' isn't supported outside of protected mode."), |
9e5e5283 L |
5151 | i.tm.name); |
5152 | return; | |
5153 | } | |
c0f3af97 | 5154 | |
0b9404fd JB |
5155 | /* Check for explicit REX prefix. */ |
5156 | if (i.prefix[REX_PREFIX] || i.rex_encoding) | |
5157 | { | |
5158 | as_bad (_("REX prefix invalid with `%s'"), i.tm.name); | |
5159 | return; | |
5160 | } | |
5161 | ||
9e5e5283 L |
5162 | if (i.tm.opcode_modifier.vex) |
5163 | build_vex_prefix (t); | |
5164 | else | |
5165 | build_evex_prefix (); | |
0b9404fd JB |
5166 | |
5167 | /* The individual REX.RXBW bits got consumed. */ | |
5168 | i.rex &= REX_OPCODE; | |
9e5e5283 | 5169 | } |
43234a1e | 5170 | |
5dd85c99 SP |
5171 | /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4 |
5172 | instructions may define INT_OPCODE as well, so avoid this corner | |
5173 | case for those instructions that use MODRM. */ | |
389d00a5 JB |
5174 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
5175 | && i.tm.base_opcode == INT_OPCODE | |
a6461c02 SP |
5176 | && !i.tm.opcode_modifier.modrm |
5177 | && i.op[0].imms->X_add_number == 3) | |
29b0f896 AM |
5178 | { |
5179 | i.tm.base_opcode = INT3_OPCODE; | |
5180 | i.imm_operands = 0; | |
5181 | } | |
252b5132 | 5182 | |
0cfa3eb3 JB |
5183 | if ((i.tm.opcode_modifier.jump == JUMP |
5184 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
5185 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 AM |
5186 | && i.op[0].disps->X_op == O_constant) |
5187 | { | |
5188 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
5189 | the absolute address given by the constant. Since ix86 jumps and | |
5190 | calls are pc relative, we need to generate a reloc. */ | |
5191 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
5192 | i.op[0].disps->X_op = O_symbol; | |
5193 | } | |
252b5132 | 5194 | |
29b0f896 AM |
5195 | /* For 8 bit registers we need an empty rex prefix. Also if the |
5196 | instruction already has a prefix, we need to convert old | |
5197 | registers to new ones. */ | |
773f551c | 5198 | |
bab6aec1 | 5199 | if ((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte |
29b0f896 | 5200 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
bab6aec1 | 5201 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte |
29b0f896 | 5202 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
bab6aec1 JB |
5203 | || (((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte) |
5204 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte)) | |
29b0f896 AM |
5205 | && i.rex != 0)) |
5206 | { | |
5207 | int x; | |
726c5dcd | 5208 | |
29b0f896 AM |
5209 | i.rex |= REX_OPCODE; |
5210 | for (x = 0; x < 2; x++) | |
5211 | { | |
5212 | /* Look for 8 bit operand that uses old registers. */ | |
bab6aec1 | 5213 | if (i.types[x].bitfield.class == Reg && i.types[x].bitfield.byte |
29b0f896 | 5214 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 5215 | { |
3f93af61 | 5216 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
29b0f896 AM |
5217 | /* In case it is "hi" register, give up. */ |
5218 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 5219 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 5220 | "instruction requiring REX prefix."), |
a540244d | 5221 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 5222 | |
29b0f896 AM |
5223 | /* Otherwise it is equivalent to the extended register. |
5224 | Since the encoding doesn't change this is merely | |
5225 | cosmetic cleanup for debug output. */ | |
5226 | ||
5227 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 5228 | } |
29b0f896 AM |
5229 | } |
5230 | } | |
773f551c | 5231 | |
6b6b6807 L |
5232 | if (i.rex == 0 && i.rex_encoding) |
5233 | { | |
5234 | /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand | |
3f93af61 | 5235 | that uses legacy register. If it is "hi" register, don't add |
6b6b6807 L |
5236 | the REX_OPCODE byte. */ |
5237 | int x; | |
5238 | for (x = 0; x < 2; x++) | |
bab6aec1 | 5239 | if (i.types[x].bitfield.class == Reg |
6b6b6807 L |
5240 | && i.types[x].bitfield.byte |
5241 | && (i.op[x].regs->reg_flags & RegRex64) == 0 | |
5242 | && i.op[x].regs->reg_num > 3) | |
5243 | { | |
3f93af61 | 5244 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
5b7c81bd | 5245 | i.rex_encoding = false; |
6b6b6807 L |
5246 | break; |
5247 | } | |
5248 | ||
5249 | if (i.rex_encoding) | |
5250 | i.rex = REX_OPCODE; | |
5251 | } | |
5252 | ||
7ab9ffdd | 5253 | if (i.rex != 0) |
29b0f896 AM |
5254 | add_prefix (REX_OPCODE | i.rex); |
5255 | ||
ae531041 L |
5256 | insert_lfence_before (); |
5257 | ||
29b0f896 AM |
5258 | /* We are ready to output the insn. */ |
5259 | output_insn (); | |
e379e5f3 | 5260 | |
ae531041 L |
5261 | insert_lfence_after (); |
5262 | ||
e379e5f3 L |
5263 | last_insn.seg = now_seg; |
5264 | ||
5265 | if (i.tm.opcode_modifier.isprefix) | |
5266 | { | |
5267 | last_insn.kind = last_insn_prefix; | |
5268 | last_insn.name = i.tm.name; | |
5269 | last_insn.file = as_where (&last_insn.line); | |
5270 | } | |
5271 | else | |
5272 | last_insn.kind = last_insn_other; | |
29b0f896 AM |
5273 | } |
5274 | ||
5275 | static char * | |
e3bb37b5 | 5276 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
5277 | { |
5278 | char *l = line; | |
5279 | char *token_start = l; | |
5280 | char *mnem_p; | |
5c6af06e | 5281 | int supported; |
d3ce72d0 | 5282 | const insn_template *t; |
b6169b20 | 5283 | char *dot_p = NULL; |
29b0f896 | 5284 | |
29b0f896 AM |
5285 | while (1) |
5286 | { | |
5287 | mnem_p = mnemonic; | |
5288 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
5289 | { | |
b6169b20 L |
5290 | if (*mnem_p == '.') |
5291 | dot_p = mnem_p; | |
29b0f896 AM |
5292 | mnem_p++; |
5293 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 5294 | { |
29b0f896 AM |
5295 | as_bad (_("no such instruction: `%s'"), token_start); |
5296 | return NULL; | |
5297 | } | |
5298 | l++; | |
5299 | } | |
5300 | if (!is_space_char (*l) | |
5301 | && *l != END_OF_INSN | |
e44823cf JB |
5302 | && (intel_syntax |
5303 | || (*l != PREFIX_SEPARATOR | |
5304 | && *l != ','))) | |
29b0f896 AM |
5305 | { |
5306 | as_bad (_("invalid character %s in mnemonic"), | |
5307 | output_invalid (*l)); | |
5308 | return NULL; | |
5309 | } | |
5310 | if (token_start == l) | |
5311 | { | |
e44823cf | 5312 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
5313 | as_bad (_("expecting prefix; got nothing")); |
5314 | else | |
5315 | as_bad (_("expecting mnemonic; got nothing")); | |
5316 | return NULL; | |
5317 | } | |
45288df1 | 5318 | |
29b0f896 | 5319 | /* Look up instruction (or prefix) via hash table. */ |
629310ab | 5320 | current_templates = (const templates *) str_hash_find (op_hash, mnemonic); |
47926f60 | 5321 | |
29b0f896 AM |
5322 | if (*l != END_OF_INSN |
5323 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
5324 | && current_templates | |
40fb9820 | 5325 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 5326 | { |
c6fb90c8 | 5327 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
5328 | { |
5329 | as_bad ((flag_code != CODE_64BIT | |
5330 | ? _("`%s' is only supported in 64-bit mode") | |
5331 | : _("`%s' is not supported in 64-bit mode")), | |
5332 | current_templates->start->name); | |
5333 | return NULL; | |
5334 | } | |
29b0f896 AM |
5335 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
5336 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
673fe0f0 JB |
5337 | if ((current_templates->start->opcode_modifier.size == SIZE16 |
5338 | || current_templates->start->opcode_modifier.size == SIZE32) | |
29b0f896 | 5339 | && flag_code != CODE_64BIT |
673fe0f0 | 5340 | && ((current_templates->start->opcode_modifier.size == SIZE32) |
29b0f896 AM |
5341 | ^ (flag_code == CODE_16BIT))) |
5342 | { | |
5343 | as_bad (_("redundant %s prefix"), | |
5344 | current_templates->start->name); | |
5345 | return NULL; | |
45288df1 | 5346 | } |
31184569 JB |
5347 | |
5348 | if (current_templates->start->base_opcode == PSEUDO_PREFIX) | |
29b0f896 | 5349 | { |
86fa6981 | 5350 | /* Handle pseudo prefixes. */ |
31184569 | 5351 | switch (current_templates->start->extension_opcode) |
86fa6981 | 5352 | { |
41eb8e88 | 5353 | case Prefix_Disp8: |
86fa6981 L |
5354 | /* {disp8} */ |
5355 | i.disp_encoding = disp_encoding_8bit; | |
5356 | break; | |
41eb8e88 L |
5357 | case Prefix_Disp16: |
5358 | /* {disp16} */ | |
5359 | i.disp_encoding = disp_encoding_16bit; | |
5360 | break; | |
5361 | case Prefix_Disp32: | |
86fa6981 L |
5362 | /* {disp32} */ |
5363 | i.disp_encoding = disp_encoding_32bit; | |
5364 | break; | |
41eb8e88 | 5365 | case Prefix_Load: |
86fa6981 L |
5366 | /* {load} */ |
5367 | i.dir_encoding = dir_encoding_load; | |
5368 | break; | |
41eb8e88 | 5369 | case Prefix_Store: |
86fa6981 L |
5370 | /* {store} */ |
5371 | i.dir_encoding = dir_encoding_store; | |
5372 | break; | |
41eb8e88 | 5373 | case Prefix_VEX: |
42e04b36 L |
5374 | /* {vex} */ |
5375 | i.vec_encoding = vex_encoding_vex; | |
86fa6981 | 5376 | break; |
41eb8e88 | 5377 | case Prefix_VEX3: |
86fa6981 L |
5378 | /* {vex3} */ |
5379 | i.vec_encoding = vex_encoding_vex3; | |
5380 | break; | |
41eb8e88 | 5381 | case Prefix_EVEX: |
86fa6981 L |
5382 | /* {evex} */ |
5383 | i.vec_encoding = vex_encoding_evex; | |
5384 | break; | |
41eb8e88 | 5385 | case Prefix_REX: |
6b6b6807 | 5386 | /* {rex} */ |
5b7c81bd | 5387 | i.rex_encoding = true; |
6b6b6807 | 5388 | break; |
41eb8e88 | 5389 | case Prefix_NoOptimize: |
b6f8c7c4 | 5390 | /* {nooptimize} */ |
5b7c81bd | 5391 | i.no_optimize = true; |
b6f8c7c4 | 5392 | break; |
86fa6981 L |
5393 | default: |
5394 | abort (); | |
5395 | } | |
5396 | } | |
5397 | else | |
5398 | { | |
5399 | /* Add prefix, checking for repeated prefixes. */ | |
4e9ac44a | 5400 | switch (add_prefix (current_templates->start->base_opcode)) |
86fa6981 | 5401 | { |
4e9ac44a L |
5402 | case PREFIX_EXIST: |
5403 | return NULL; | |
5404 | case PREFIX_DS: | |
d777820b | 5405 | if (current_templates->start->cpu_flags.bitfield.cpuibt) |
4e9ac44a L |
5406 | i.notrack_prefix = current_templates->start->name; |
5407 | break; | |
5408 | case PREFIX_REP: | |
5409 | if (current_templates->start->cpu_flags.bitfield.cpuhle) | |
5410 | i.hle_prefix = current_templates->start->name; | |
5411 | else if (current_templates->start->cpu_flags.bitfield.cpumpx) | |
5412 | i.bnd_prefix = current_templates->start->name; | |
5413 | else | |
5414 | i.rep_prefix = current_templates->start->name; | |
5415 | break; | |
5416 | default: | |
5417 | break; | |
86fa6981 | 5418 | } |
29b0f896 AM |
5419 | } |
5420 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
5421 | token_start = ++l; | |
5422 | } | |
5423 | else | |
5424 | break; | |
5425 | } | |
45288df1 | 5426 | |
30a55f88 | 5427 | if (!current_templates) |
b6169b20 | 5428 | { |
07d5e953 JB |
5429 | /* Deprecated functionality (new code should use pseudo-prefixes instead): |
5430 | Check if we should swap operand or force 32bit displacement in | |
f8a5c266 | 5431 | encoding. */ |
30a55f88 | 5432 | if (mnem_p - 2 == dot_p && dot_p[1] == 's') |
64c49ab3 | 5433 | i.dir_encoding = dir_encoding_swap; |
8d63c93e | 5434 | else if (mnem_p - 3 == dot_p |
a501d77e L |
5435 | && dot_p[1] == 'd' |
5436 | && dot_p[2] == '8') | |
5437 | i.disp_encoding = disp_encoding_8bit; | |
8d63c93e | 5438 | else if (mnem_p - 4 == dot_p |
f8a5c266 L |
5439 | && dot_p[1] == 'd' |
5440 | && dot_p[2] == '3' | |
5441 | && dot_p[3] == '2') | |
a501d77e | 5442 | i.disp_encoding = disp_encoding_32bit; |
30a55f88 L |
5443 | else |
5444 | goto check_suffix; | |
5445 | mnem_p = dot_p; | |
5446 | *dot_p = '\0'; | |
629310ab | 5447 | current_templates = (const templates *) str_hash_find (op_hash, mnemonic); |
b6169b20 L |
5448 | } |
5449 | ||
29b0f896 AM |
5450 | if (!current_templates) |
5451 | { | |
dc1e8a47 | 5452 | check_suffix: |
1c529385 | 5453 | if (mnem_p > mnemonic) |
29b0f896 | 5454 | { |
1c529385 LH |
5455 | /* See if we can get a match by trimming off a suffix. */ |
5456 | switch (mnem_p[-1]) | |
29b0f896 | 5457 | { |
1c529385 LH |
5458 | case WORD_MNEM_SUFFIX: |
5459 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) | |
29b0f896 AM |
5460 | i.suffix = SHORT_MNEM_SUFFIX; |
5461 | else | |
1c529385 LH |
5462 | /* Fall through. */ |
5463 | case BYTE_MNEM_SUFFIX: | |
5464 | case QWORD_MNEM_SUFFIX: | |
5465 | i.suffix = mnem_p[-1]; | |
29b0f896 | 5466 | mnem_p[-1] = '\0'; |
fe0e921f AM |
5467 | current_templates |
5468 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5469 | break; |
5470 | case SHORT_MNEM_SUFFIX: | |
5471 | case LONG_MNEM_SUFFIX: | |
5472 | if (!intel_syntax) | |
5473 | { | |
5474 | i.suffix = mnem_p[-1]; | |
5475 | mnem_p[-1] = '\0'; | |
fe0e921f AM |
5476 | current_templates |
5477 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5478 | } |
5479 | break; | |
5480 | ||
5481 | /* Intel Syntax. */ | |
5482 | case 'd': | |
5483 | if (intel_syntax) | |
5484 | { | |
5485 | if (intel_float_operand (mnemonic) == 1) | |
5486 | i.suffix = SHORT_MNEM_SUFFIX; | |
5487 | else | |
5488 | i.suffix = LONG_MNEM_SUFFIX; | |
5489 | mnem_p[-1] = '\0'; | |
fe0e921f AM |
5490 | current_templates |
5491 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5492 | } |
5493 | break; | |
29b0f896 | 5494 | } |
29b0f896 | 5495 | } |
1c529385 | 5496 | |
29b0f896 AM |
5497 | if (!current_templates) |
5498 | { | |
5499 | as_bad (_("no such instruction: `%s'"), token_start); | |
5500 | return NULL; | |
5501 | } | |
5502 | } | |
252b5132 | 5503 | |
0cfa3eb3 JB |
5504 | if (current_templates->start->opcode_modifier.jump == JUMP |
5505 | || current_templates->start->opcode_modifier.jump == JUMP_BYTE) | |
29b0f896 AM |
5506 | { |
5507 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
5508 | predict taken and predict not taken respectively. | |
5509 | I'm not sure that branch hints actually do anything on loop | |
5510 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
5511 | may work in the future and it doesn't hurt to accept them | |
5512 | now. */ | |
5513 | if (l[0] == ',' && l[1] == 'p') | |
5514 | { | |
5515 | if (l[2] == 't') | |
5516 | { | |
5517 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
5518 | return NULL; | |
5519 | l += 3; | |
5520 | } | |
5521 | else if (l[2] == 'n') | |
5522 | { | |
5523 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
5524 | return NULL; | |
5525 | l += 3; | |
5526 | } | |
5527 | } | |
5528 | } | |
5529 | /* Any other comma loses. */ | |
5530 | if (*l == ',') | |
5531 | { | |
5532 | as_bad (_("invalid character %s in mnemonic"), | |
5533 | output_invalid (*l)); | |
5534 | return NULL; | |
5535 | } | |
252b5132 | 5536 | |
29b0f896 | 5537 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
5538 | supported = 0; |
5539 | for (t = current_templates->start; t < current_templates->end; ++t) | |
5540 | { | |
c0f3af97 L |
5541 | supported |= cpu_flags_match (t); |
5542 | if (supported == CPU_FLAGS_PERFECT_MATCH) | |
d59a54c2 | 5543 | return l; |
29b0f896 | 5544 | } |
3629bb00 | 5545 | |
548d0ee6 JB |
5546 | if (!(supported & CPU_FLAGS_64BIT_MATCH)) |
5547 | as_bad (flag_code == CODE_64BIT | |
5548 | ? _("`%s' is not supported in 64-bit mode") | |
5549 | : _("`%s' is only supported in 64-bit mode"), | |
5550 | current_templates->start->name); | |
5551 | else | |
5552 | as_bad (_("`%s' is not supported on `%s%s'"), | |
5553 | current_templates->start->name, | |
5554 | cpu_arch_name ? cpu_arch_name : default_arch, | |
5555 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); | |
252b5132 | 5556 | |
548d0ee6 | 5557 | return NULL; |
29b0f896 | 5558 | } |
252b5132 | 5559 | |
29b0f896 | 5560 | static char * |
e3bb37b5 | 5561 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
5562 | { |
5563 | char *token_start; | |
3138f287 | 5564 | |
29b0f896 AM |
5565 | /* 1 if operand is pending after ','. */ |
5566 | unsigned int expecting_operand = 0; | |
252b5132 | 5567 | |
29b0f896 AM |
5568 | while (*l != END_OF_INSN) |
5569 | { | |
e68c3d59 JB |
5570 | /* Non-zero if operand parens not balanced. */ |
5571 | unsigned int paren_not_balanced = 0; | |
5572 | /* True if inside double quotes. */ | |
5573 | bool in_quotes = false; | |
5574 | ||
29b0f896 AM |
5575 | /* Skip optional white space before operand. */ |
5576 | if (is_space_char (*l)) | |
5577 | ++l; | |
d02603dc | 5578 | if (!is_operand_char (*l) && *l != END_OF_INSN && *l != '"') |
29b0f896 AM |
5579 | { |
5580 | as_bad (_("invalid character %s before operand %d"), | |
5581 | output_invalid (*l), | |
5582 | i.operands + 1); | |
5583 | return NULL; | |
5584 | } | |
d02603dc | 5585 | token_start = l; /* After white space. */ |
e68c3d59 | 5586 | while (in_quotes || paren_not_balanced || *l != ',') |
29b0f896 AM |
5587 | { |
5588 | if (*l == END_OF_INSN) | |
5589 | { | |
e68c3d59 JB |
5590 | if (in_quotes) |
5591 | { | |
5592 | as_bad (_("unbalanced double quotes in operand %d."), | |
5593 | i.operands + 1); | |
5594 | return NULL; | |
5595 | } | |
29b0f896 AM |
5596 | if (paren_not_balanced) |
5597 | { | |
98ff9f1c JB |
5598 | know (!intel_syntax); |
5599 | as_bad (_("unbalanced parenthesis in operand %d."), | |
5600 | i.operands + 1); | |
29b0f896 AM |
5601 | return NULL; |
5602 | } | |
5603 | else | |
5604 | break; /* we are done */ | |
5605 | } | |
e68c3d59 JB |
5606 | else if (*l == '\\' && l[1] == '"') |
5607 | ++l; | |
5608 | else if (*l == '"') | |
5609 | in_quotes = !in_quotes; | |
5610 | else if (!in_quotes && !is_operand_char (*l) && !is_space_char (*l)) | |
29b0f896 AM |
5611 | { |
5612 | as_bad (_("invalid character %s in operand %d"), | |
5613 | output_invalid (*l), | |
5614 | i.operands + 1); | |
5615 | return NULL; | |
5616 | } | |
e68c3d59 | 5617 | if (!intel_syntax && !in_quotes) |
29b0f896 AM |
5618 | { |
5619 | if (*l == '(') | |
5620 | ++paren_not_balanced; | |
5621 | if (*l == ')') | |
5622 | --paren_not_balanced; | |
5623 | } | |
29b0f896 AM |
5624 | l++; |
5625 | } | |
5626 | if (l != token_start) | |
5627 | { /* Yes, we've read in another operand. */ | |
5628 | unsigned int operand_ok; | |
5629 | this_operand = i.operands++; | |
5630 | if (i.operands > MAX_OPERANDS) | |
5631 | { | |
5632 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
5633 | MAX_OPERANDS); | |
5634 | return NULL; | |
5635 | } | |
9d46ce34 | 5636 | i.types[this_operand].bitfield.unspecified = 1; |
29b0f896 AM |
5637 | /* Now parse operand adding info to 'i' as we go along. */ |
5638 | END_STRING_AND_SAVE (l); | |
5639 | ||
1286ab78 L |
5640 | if (i.mem_operands > 1) |
5641 | { | |
5642 | as_bad (_("too many memory references for `%s'"), | |
5643 | mnemonic); | |
5644 | return 0; | |
5645 | } | |
5646 | ||
29b0f896 AM |
5647 | if (intel_syntax) |
5648 | operand_ok = | |
5649 | i386_intel_operand (token_start, | |
5650 | intel_float_operand (mnemonic)); | |
5651 | else | |
a7619375 | 5652 | operand_ok = i386_att_operand (token_start); |
29b0f896 AM |
5653 | |
5654 | RESTORE_END_STRING (l); | |
5655 | if (!operand_ok) | |
5656 | return NULL; | |
5657 | } | |
5658 | else | |
5659 | { | |
5660 | if (expecting_operand) | |
5661 | { | |
5662 | expecting_operand_after_comma: | |
5663 | as_bad (_("expecting operand after ','; got nothing")); | |
5664 | return NULL; | |
5665 | } | |
5666 | if (*l == ',') | |
5667 | { | |
5668 | as_bad (_("expecting operand before ','; got nothing")); | |
5669 | return NULL; | |
5670 | } | |
5671 | } | |
7f3f1ea2 | 5672 | |
29b0f896 AM |
5673 | /* Now *l must be either ',' or END_OF_INSN. */ |
5674 | if (*l == ',') | |
5675 | { | |
5676 | if (*++l == END_OF_INSN) | |
5677 | { | |
5678 | /* Just skip it, if it's \n complain. */ | |
5679 | goto expecting_operand_after_comma; | |
5680 | } | |
5681 | expecting_operand = 1; | |
5682 | } | |
5683 | } | |
5684 | return l; | |
5685 | } | |
7f3f1ea2 | 5686 | |
050dfa73 | 5687 | static void |
783c187b | 5688 | swap_2_operands (unsigned int xchg1, unsigned int xchg2) |
050dfa73 MM |
5689 | { |
5690 | union i386_op temp_op; | |
40fb9820 | 5691 | i386_operand_type temp_type; |
c48dadc9 | 5692 | unsigned int temp_flags; |
050dfa73 | 5693 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 5694 | |
050dfa73 MM |
5695 | temp_type = i.types[xchg2]; |
5696 | i.types[xchg2] = i.types[xchg1]; | |
5697 | i.types[xchg1] = temp_type; | |
c48dadc9 JB |
5698 | |
5699 | temp_flags = i.flags[xchg2]; | |
5700 | i.flags[xchg2] = i.flags[xchg1]; | |
5701 | i.flags[xchg1] = temp_flags; | |
5702 | ||
050dfa73 MM |
5703 | temp_op = i.op[xchg2]; |
5704 | i.op[xchg2] = i.op[xchg1]; | |
5705 | i.op[xchg1] = temp_op; | |
c48dadc9 | 5706 | |
050dfa73 MM |
5707 | temp_reloc = i.reloc[xchg2]; |
5708 | i.reloc[xchg2] = i.reloc[xchg1]; | |
5709 | i.reloc[xchg1] = temp_reloc; | |
43234a1e | 5710 | |
6225c532 | 5711 | if (i.mask.reg) |
43234a1e | 5712 | { |
6225c532 JB |
5713 | if (i.mask.operand == xchg1) |
5714 | i.mask.operand = xchg2; | |
5715 | else if (i.mask.operand == xchg2) | |
5716 | i.mask.operand = xchg1; | |
43234a1e | 5717 | } |
a5748e0d | 5718 | if (i.broadcast.type || i.broadcast.bytes) |
43234a1e | 5719 | { |
5273a3cd JB |
5720 | if (i.broadcast.operand == xchg1) |
5721 | i.broadcast.operand = xchg2; | |
5722 | else if (i.broadcast.operand == xchg2) | |
5723 | i.broadcast.operand = xchg1; | |
43234a1e | 5724 | } |
050dfa73 MM |
5725 | } |
5726 | ||
29b0f896 | 5727 | static void |
e3bb37b5 | 5728 | swap_operands (void) |
29b0f896 | 5729 | { |
b7c61d9a | 5730 | switch (i.operands) |
050dfa73 | 5731 | { |
c0f3af97 | 5732 | case 5: |
b7c61d9a | 5733 | case 4: |
4d456e3d | 5734 | swap_2_operands (1, i.operands - 2); |
1a0670f3 | 5735 | /* Fall through. */ |
b7c61d9a L |
5736 | case 3: |
5737 | case 2: | |
4d456e3d | 5738 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
5739 | break; |
5740 | default: | |
5741 | abort (); | |
29b0f896 | 5742 | } |
29b0f896 AM |
5743 | |
5744 | if (i.mem_operands == 2) | |
5745 | { | |
5e042380 | 5746 | const reg_entry *temp_seg; |
29b0f896 AM |
5747 | temp_seg = i.seg[0]; |
5748 | i.seg[0] = i.seg[1]; | |
5749 | i.seg[1] = temp_seg; | |
5750 | } | |
5751 | } | |
252b5132 | 5752 | |
29b0f896 AM |
5753 | /* Try to ensure constant immediates are represented in the smallest |
5754 | opcode possible. */ | |
5755 | static void | |
e3bb37b5 | 5756 | optimize_imm (void) |
29b0f896 AM |
5757 | { |
5758 | char guess_suffix = 0; | |
5759 | int op; | |
252b5132 | 5760 | |
29b0f896 AM |
5761 | if (i.suffix) |
5762 | guess_suffix = i.suffix; | |
5763 | else if (i.reg_operands) | |
5764 | { | |
5765 | /* Figure out a suffix from the last register operand specified. | |
75e5731b JB |
5766 | We can't do this properly yet, i.e. excluding special register |
5767 | instances, but the following works for instructions with | |
5768 | immediates. In any case, we can't set i.suffix yet. */ | |
29b0f896 | 5769 | for (op = i.operands; --op >= 0;) |
bab6aec1 JB |
5770 | if (i.types[op].bitfield.class != Reg) |
5771 | continue; | |
5772 | else if (i.types[op].bitfield.byte) | |
7ab9ffdd | 5773 | { |
40fb9820 L |
5774 | guess_suffix = BYTE_MNEM_SUFFIX; |
5775 | break; | |
5776 | } | |
bab6aec1 | 5777 | else if (i.types[op].bitfield.word) |
252b5132 | 5778 | { |
40fb9820 L |
5779 | guess_suffix = WORD_MNEM_SUFFIX; |
5780 | break; | |
5781 | } | |
bab6aec1 | 5782 | else if (i.types[op].bitfield.dword) |
40fb9820 L |
5783 | { |
5784 | guess_suffix = LONG_MNEM_SUFFIX; | |
5785 | break; | |
5786 | } | |
bab6aec1 | 5787 | else if (i.types[op].bitfield.qword) |
40fb9820 L |
5788 | { |
5789 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 5790 | break; |
252b5132 | 5791 | } |
29b0f896 AM |
5792 | } |
5793 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
5794 | guess_suffix = WORD_MNEM_SUFFIX; | |
5795 | ||
5796 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 5797 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
5798 | { |
5799 | switch (i.op[op].imms->X_op) | |
252b5132 | 5800 | { |
29b0f896 AM |
5801 | case O_constant: |
5802 | /* If a suffix is given, this operand may be shortened. */ | |
5803 | switch (guess_suffix) | |
252b5132 | 5804 | { |
29b0f896 | 5805 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
5806 | i.types[op].bitfield.imm32 = 1; |
5807 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5808 | break; |
5809 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
5810 | i.types[op].bitfield.imm16 = 1; |
5811 | i.types[op].bitfield.imm32 = 1; | |
5812 | i.types[op].bitfield.imm32s = 1; | |
5813 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5814 | break; |
5815 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
5816 | i.types[op].bitfield.imm8 = 1; |
5817 | i.types[op].bitfield.imm8s = 1; | |
5818 | i.types[op].bitfield.imm16 = 1; | |
5819 | i.types[op].bitfield.imm32 = 1; | |
5820 | i.types[op].bitfield.imm32s = 1; | |
5821 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 5822 | break; |
252b5132 | 5823 | } |
252b5132 | 5824 | |
29b0f896 AM |
5825 | /* If this operand is at most 16 bits, convert it |
5826 | to a signed 16 bit number before trying to see | |
5827 | whether it will fit in an even smaller size. | |
5828 | This allows a 16-bit operand such as $0xffe0 to | |
5829 | be recognised as within Imm8S range. */ | |
40fb9820 | 5830 | if ((i.types[op].bitfield.imm16) |
7e96fb68 | 5831 | && fits_in_unsigned_word (i.op[op].imms->X_add_number)) |
252b5132 | 5832 | { |
87ed972d JB |
5833 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number |
5834 | ^ 0x8000) - 0x8000); | |
29b0f896 | 5835 | } |
a28def75 L |
5836 | #ifdef BFD64 |
5837 | /* Store 32-bit immediate in 64-bit for 64-bit BFD. */ | |
40fb9820 | 5838 | if ((i.types[op].bitfield.imm32) |
7e96fb68 | 5839 | && fits_in_unsigned_long (i.op[op].imms->X_add_number)) |
29b0f896 AM |
5840 | { |
5841 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
5842 | ^ ((offsetT) 1 << 31)) | |
5843 | - ((offsetT) 1 << 31)); | |
5844 | } | |
a28def75 | 5845 | #endif |
40fb9820 | 5846 | i.types[op] |
c6fb90c8 L |
5847 | = operand_type_or (i.types[op], |
5848 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 5849 | |
29b0f896 AM |
5850 | /* We must avoid matching of Imm32 templates when 64bit |
5851 | only immediate is available. */ | |
5852 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 5853 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 5854 | break; |
252b5132 | 5855 | |
29b0f896 AM |
5856 | case O_absent: |
5857 | case O_register: | |
5858 | abort (); | |
5859 | ||
5860 | /* Symbols and expressions. */ | |
5861 | default: | |
9cd96992 JB |
5862 | /* Convert symbolic operand to proper sizes for matching, but don't |
5863 | prevent matching a set of insns that only supports sizes other | |
5864 | than those matching the insn suffix. */ | |
5865 | { | |
40fb9820 | 5866 | i386_operand_type mask, allowed; |
87ed972d | 5867 | const insn_template *t = current_templates->start; |
9cd96992 | 5868 | |
0dfbf9d7 | 5869 | operand_type_set (&mask, 0); |
9cd96992 JB |
5870 | switch (guess_suffix) |
5871 | { | |
5872 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
5873 | mask.bitfield.imm64 = 1; |
5874 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
5875 | break; |
5876 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 5877 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
5878 | break; |
5879 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 5880 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
5881 | break; |
5882 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 5883 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
5884 | break; |
5885 | default: | |
9cd96992 JB |
5886 | break; |
5887 | } | |
8f0212ac JB |
5888 | |
5889 | allowed = operand_type_and (t->operand_types[op], mask); | |
5890 | while (++t < current_templates->end) | |
5891 | { | |
5892 | allowed = operand_type_or (allowed, t->operand_types[op]); | |
5893 | allowed = operand_type_and (allowed, mask); | |
5894 | } | |
5895 | ||
0dfbf9d7 | 5896 | if (!operand_type_all_zero (&allowed)) |
c6fb90c8 | 5897 | i.types[op] = operand_type_and (i.types[op], mask); |
9cd96992 | 5898 | } |
29b0f896 | 5899 | break; |
252b5132 | 5900 | } |
29b0f896 AM |
5901 | } |
5902 | } | |
47926f60 | 5903 | |
29b0f896 AM |
5904 | /* Try to use the smallest displacement type too. */ |
5905 | static void | |
e3bb37b5 | 5906 | optimize_disp (void) |
29b0f896 AM |
5907 | { |
5908 | int op; | |
3e73aa7c | 5909 | |
29b0f896 | 5910 | for (op = i.operands; --op >= 0;) |
40fb9820 | 5911 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 5912 | { |
b300c311 | 5913 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 5914 | { |
91d6fa6a | 5915 | offsetT op_disp = i.op[op].disps->X_add_number; |
29b0f896 | 5916 | |
91d6fa6a | 5917 | if (!op_disp && i.types[op].bitfield.baseindex) |
b300c311 | 5918 | { |
2f2be86b JB |
5919 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
5920 | i.op[op].disps = NULL; | |
b300c311 | 5921 | i.disp_operands--; |
f185acdd JB |
5922 | continue; |
5923 | } | |
5924 | ||
5925 | if (i.types[op].bitfield.disp16 | |
cd613c1f | 5926 | && fits_in_unsigned_word (op_disp)) |
f185acdd JB |
5927 | { |
5928 | /* If this operand is at most 16 bits, convert | |
5929 | to a signed 16 bit number and don't use 64bit | |
5930 | displacement. */ | |
5931 | op_disp = ((op_disp ^ 0x8000) - 0x8000); | |
5932 | i.types[op].bitfield.disp64 = 0; | |
b300c311 | 5933 | } |
f185acdd | 5934 | |
28a167a4 | 5935 | #ifdef BFD64 |
a50187b2 | 5936 | /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */ |
a775efc8 JB |
5937 | if ((flag_code != CODE_64BIT |
5938 | ? i.types[op].bitfield.disp32 | |
5939 | : want_disp32 (current_templates->start) | |
5940 | && (!current_templates->start->opcode_modifier.jump | |
5941 | || i.jumpabsolute || i.types[op].bitfield.baseindex)) | |
a50187b2 | 5942 | && fits_in_unsigned_long (op_disp)) |
b300c311 | 5943 | { |
a50187b2 JB |
5944 | /* If this operand is at most 32 bits, convert |
5945 | to a signed 32 bit number and don't use 64bit | |
5946 | displacement. */ | |
5947 | op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
5948 | i.types[op].bitfield.disp64 = 0; | |
5949 | i.types[op].bitfield.disp32 = 1; | |
5950 | } | |
28a167a4 | 5951 | |
a50187b2 JB |
5952 | if (flag_code == CODE_64BIT && fits_in_signed_long (op_disp)) |
5953 | { | |
5954 | i.types[op].bitfield.disp64 = 0; | |
a775efc8 | 5955 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 5956 | } |
28a167a4 | 5957 | #endif |
40fb9820 | 5958 | if ((i.types[op].bitfield.disp32 |
40fb9820 | 5959 | || i.types[op].bitfield.disp16) |
b5014f7a | 5960 | && fits_in_disp8 (op_disp)) |
40fb9820 | 5961 | i.types[op].bitfield.disp8 = 1; |
77c59789 JB |
5962 | |
5963 | i.op[op].disps->X_add_number = op_disp; | |
252b5132 | 5964 | } |
67a4f2b7 AO |
5965 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
5966 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
5967 | { | |
5968 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
5969 | i.op[op].disps, 0, i.reloc[op]); | |
2f2be86b | 5970 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
67a4f2b7 AO |
5971 | } |
5972 | else | |
b300c311 | 5973 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 5974 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 5975 | } |
29b0f896 AM |
5976 | } |
5977 | ||
4a1b91ea L |
5978 | /* Return 1 if there is a match in broadcast bytes between operand |
5979 | GIVEN and instruction template T. */ | |
5980 | ||
5981 | static INLINE int | |
5982 | match_broadcast_size (const insn_template *t, unsigned int given) | |
5983 | { | |
5984 | return ((t->opcode_modifier.broadcast == BYTE_BROADCAST | |
5985 | && i.types[given].bitfield.byte) | |
5986 | || (t->opcode_modifier.broadcast == WORD_BROADCAST | |
5987 | && i.types[given].bitfield.word) | |
5988 | || (t->opcode_modifier.broadcast == DWORD_BROADCAST | |
5989 | && i.types[given].bitfield.dword) | |
5990 | || (t->opcode_modifier.broadcast == QWORD_BROADCAST | |
5991 | && i.types[given].bitfield.qword)); | |
5992 | } | |
5993 | ||
6c30d220 L |
5994 | /* Check if operands are valid for the instruction. */ |
5995 | ||
5996 | static int | |
5997 | check_VecOperands (const insn_template *t) | |
5998 | { | |
43234a1e | 5999 | unsigned int op; |
e2195274 | 6000 | i386_cpu_flags cpu; |
e2195274 JB |
6001 | |
6002 | /* Templates allowing for ZMMword as well as YMMword and/or XMMword for | |
6003 | any one operand are implicity requiring AVX512VL support if the actual | |
6004 | operand size is YMMword or XMMword. Since this function runs after | |
6005 | template matching, there's no need to check for YMMword/XMMword in | |
6006 | the template. */ | |
6007 | cpu = cpu_flags_and (t->cpu_flags, avx512); | |
6008 | if (!cpu_flags_all_zero (&cpu) | |
6009 | && !t->cpu_flags.bitfield.cpuavx512vl | |
6010 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
6011 | { | |
6012 | for (op = 0; op < t->operands; ++op) | |
6013 | { | |
6014 | if (t->operand_types[op].bitfield.zmmword | |
6015 | && (i.types[op].bitfield.ymmword | |
6016 | || i.types[op].bitfield.xmmword)) | |
6017 | { | |
6018 | i.error = unsupported; | |
6019 | return 1; | |
6020 | } | |
6021 | } | |
6022 | } | |
43234a1e | 6023 | |
22c36940 JB |
6024 | /* Somewhat similarly, templates specifying both AVX and AVX2 are |
6025 | requiring AVX2 support if the actual operand size is YMMword. */ | |
6026 | if (t->cpu_flags.bitfield.cpuavx | |
6027 | && t->cpu_flags.bitfield.cpuavx2 | |
6028 | && !cpu_arch_flags.bitfield.cpuavx2) | |
6029 | { | |
6030 | for (op = 0; op < t->operands; ++op) | |
6031 | { | |
6032 | if (t->operand_types[op].bitfield.xmmword | |
6033 | && i.types[op].bitfield.ymmword) | |
6034 | { | |
6035 | i.error = unsupported; | |
6036 | return 1; | |
6037 | } | |
6038 | } | |
6039 | } | |
6040 | ||
6c30d220 | 6041 | /* Without VSIB byte, we can't have a vector register for index. */ |
63112cd6 | 6042 | if (!t->opcode_modifier.sib |
6c30d220 | 6043 | && i.index_reg |
1b54b8d7 JB |
6044 | && (i.index_reg->reg_type.bitfield.xmmword |
6045 | || i.index_reg->reg_type.bitfield.ymmword | |
6046 | || i.index_reg->reg_type.bitfield.zmmword)) | |
6c30d220 L |
6047 | { |
6048 | i.error = unsupported_vector_index_register; | |
6049 | return 1; | |
6050 | } | |
6051 | ||
ad8ecc81 | 6052 | /* Check if default mask is allowed. */ |
255571cd | 6053 | if (t->opcode_modifier.operandconstraint == NO_DEFAULT_MASK |
6225c532 | 6054 | && (!i.mask.reg || i.mask.reg->reg_num == 0)) |
ad8ecc81 MZ |
6055 | { |
6056 | i.error = no_default_mask; | |
6057 | return 1; | |
6058 | } | |
6059 | ||
7bab8ab5 JB |
6060 | /* For VSIB byte, we need a vector register for index, and all vector |
6061 | registers must be distinct. */ | |
260cd341 | 6062 | if (t->opcode_modifier.sib && t->opcode_modifier.sib != SIBMEM) |
7bab8ab5 JB |
6063 | { |
6064 | if (!i.index_reg | |
63112cd6 | 6065 | || !((t->opcode_modifier.sib == VECSIB128 |
1b54b8d7 | 6066 | && i.index_reg->reg_type.bitfield.xmmword) |
63112cd6 | 6067 | || (t->opcode_modifier.sib == VECSIB256 |
1b54b8d7 | 6068 | && i.index_reg->reg_type.bitfield.ymmword) |
63112cd6 | 6069 | || (t->opcode_modifier.sib == VECSIB512 |
1b54b8d7 | 6070 | && i.index_reg->reg_type.bitfield.zmmword))) |
7bab8ab5 JB |
6071 | { |
6072 | i.error = invalid_vsib_address; | |
6073 | return 1; | |
6074 | } | |
6075 | ||
6225c532 JB |
6076 | gas_assert (i.reg_operands == 2 || i.mask.reg); |
6077 | if (i.reg_operands == 2 && !i.mask.reg) | |
43234a1e | 6078 | { |
3528c362 | 6079 | gas_assert (i.types[0].bitfield.class == RegSIMD); |
1b54b8d7 JB |
6080 | gas_assert (i.types[0].bitfield.xmmword |
6081 | || i.types[0].bitfield.ymmword); | |
3528c362 | 6082 | gas_assert (i.types[2].bitfield.class == RegSIMD); |
1b54b8d7 JB |
6083 | gas_assert (i.types[2].bitfield.xmmword |
6084 | || i.types[2].bitfield.ymmword); | |
43234a1e L |
6085 | if (operand_check == check_none) |
6086 | return 0; | |
6087 | if (register_number (i.op[0].regs) | |
6088 | != register_number (i.index_reg) | |
6089 | && register_number (i.op[2].regs) | |
6090 | != register_number (i.index_reg) | |
6091 | && register_number (i.op[0].regs) | |
6092 | != register_number (i.op[2].regs)) | |
6093 | return 0; | |
6094 | if (operand_check == check_error) | |
6095 | { | |
6096 | i.error = invalid_vector_register_set; | |
6097 | return 1; | |
6098 | } | |
6099 | as_warn (_("mask, index, and destination registers should be distinct")); | |
6100 | } | |
6225c532 | 6101 | else if (i.reg_operands == 1 && i.mask.reg) |
8444f82a | 6102 | { |
3528c362 | 6103 | if (i.types[1].bitfield.class == RegSIMD |
1b54b8d7 JB |
6104 | && (i.types[1].bitfield.xmmword |
6105 | || i.types[1].bitfield.ymmword | |
6106 | || i.types[1].bitfield.zmmword) | |
8444f82a MZ |
6107 | && (register_number (i.op[1].regs) |
6108 | == register_number (i.index_reg))) | |
6109 | { | |
6110 | if (operand_check == check_error) | |
6111 | { | |
6112 | i.error = invalid_vector_register_set; | |
6113 | return 1; | |
6114 | } | |
6115 | if (operand_check != check_none) | |
6116 | as_warn (_("index and destination registers should be distinct")); | |
6117 | } | |
6118 | } | |
43234a1e | 6119 | } |
7bab8ab5 | 6120 | |
fc141319 L |
6121 | /* For AMX instructions with 3 TMM register operands, all operands |
6122 | must be distinct. */ | |
6123 | if (i.reg_operands == 3 | |
6124 | && t->operand_types[0].bitfield.tmmword | |
6125 | && (i.op[0].regs == i.op[1].regs | |
6126 | || i.op[0].regs == i.op[2].regs | |
6127 | || i.op[1].regs == i.op[2].regs)) | |
6128 | { | |
6129 | i.error = invalid_tmm_register_set; | |
6130 | return 1; | |
260cd341 LC |
6131 | } |
6132 | ||
0cc78721 CL |
6133 | /* For some special instructions require that destination must be distinct |
6134 | from source registers. */ | |
255571cd | 6135 | if (t->opcode_modifier.operandconstraint == DISTINCT_DEST) |
0cc78721 CL |
6136 | { |
6137 | unsigned int dest_reg = i.operands - 1; | |
6138 | ||
6139 | know (i.operands >= 3); | |
6140 | ||
6141 | /* #UD if dest_reg == src1_reg or dest_reg == src2_reg. */ | |
6142 | if (i.op[dest_reg - 1].regs == i.op[dest_reg].regs | |
6143 | || (i.reg_operands > 2 | |
6144 | && i.op[dest_reg - 2].regs == i.op[dest_reg].regs)) | |
6145 | { | |
6146 | i.error = invalid_dest_and_src_register_set; | |
6147 | return 1; | |
6148 | } | |
6149 | } | |
6150 | ||
43234a1e L |
6151 | /* Check if broadcast is supported by the instruction and is applied |
6152 | to the memory operand. */ | |
a5748e0d | 6153 | if (i.broadcast.type || i.broadcast.bytes) |
43234a1e | 6154 | { |
8e6e0792 | 6155 | i386_operand_type type, overlap; |
43234a1e L |
6156 | |
6157 | /* Check if specified broadcast is supported in this instruction, | |
4a1b91ea | 6158 | and its broadcast bytes match the memory operand. */ |
5273a3cd | 6159 | op = i.broadcast.operand; |
8e6e0792 | 6160 | if (!t->opcode_modifier.broadcast |
c48dadc9 | 6161 | || !(i.flags[op] & Operand_Mem) |
c39e5b26 | 6162 | || (!i.types[op].bitfield.unspecified |
4a1b91ea | 6163 | && !match_broadcast_size (t, op))) |
43234a1e L |
6164 | { |
6165 | bad_broadcast: | |
6166 | i.error = unsupported_broadcast; | |
6167 | return 1; | |
6168 | } | |
8e6e0792 | 6169 | |
a5748e0d JB |
6170 | if (i.broadcast.type) |
6171 | i.broadcast.bytes = ((1 << (t->opcode_modifier.broadcast - 1)) | |
6172 | * i.broadcast.type); | |
8e6e0792 | 6173 | operand_type_set (&type, 0); |
a5748e0d | 6174 | switch (get_broadcast_bytes (t, false)) |
8e6e0792 | 6175 | { |
4a1b91ea L |
6176 | case 2: |
6177 | type.bitfield.word = 1; | |
6178 | break; | |
6179 | case 4: | |
6180 | type.bitfield.dword = 1; | |
6181 | break; | |
8e6e0792 JB |
6182 | case 8: |
6183 | type.bitfield.qword = 1; | |
6184 | break; | |
6185 | case 16: | |
6186 | type.bitfield.xmmword = 1; | |
6187 | break; | |
6188 | case 32: | |
6189 | type.bitfield.ymmword = 1; | |
6190 | break; | |
6191 | case 64: | |
6192 | type.bitfield.zmmword = 1; | |
6193 | break; | |
6194 | default: | |
6195 | goto bad_broadcast; | |
6196 | } | |
6197 | ||
6198 | overlap = operand_type_and (type, t->operand_types[op]); | |
bc49bfd8 JB |
6199 | if (t->operand_types[op].bitfield.class == RegSIMD |
6200 | && t->operand_types[op].bitfield.byte | |
6201 | + t->operand_types[op].bitfield.word | |
6202 | + t->operand_types[op].bitfield.dword | |
6203 | + t->operand_types[op].bitfield.qword > 1) | |
6204 | { | |
6205 | overlap.bitfield.xmmword = 0; | |
6206 | overlap.bitfield.ymmword = 0; | |
6207 | overlap.bitfield.zmmword = 0; | |
6208 | } | |
8e6e0792 JB |
6209 | if (operand_type_all_zero (&overlap)) |
6210 | goto bad_broadcast; | |
6211 | ||
6212 | if (t->opcode_modifier.checkregsize) | |
6213 | { | |
6214 | unsigned int j; | |
6215 | ||
e2195274 | 6216 | type.bitfield.baseindex = 1; |
8e6e0792 JB |
6217 | for (j = 0; j < i.operands; ++j) |
6218 | { | |
6219 | if (j != op | |
6220 | && !operand_type_register_match(i.types[j], | |
6221 | t->operand_types[j], | |
6222 | type, | |
6223 | t->operand_types[op])) | |
6224 | goto bad_broadcast; | |
6225 | } | |
6226 | } | |
43234a1e L |
6227 | } |
6228 | /* If broadcast is supported in this instruction, we need to check if | |
6229 | operand of one-element size isn't specified without broadcast. */ | |
6230 | else if (t->opcode_modifier.broadcast && i.mem_operands) | |
6231 | { | |
6232 | /* Find memory operand. */ | |
6233 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 6234 | if (i.flags[op] & Operand_Mem) |
43234a1e L |
6235 | break; |
6236 | gas_assert (op < i.operands); | |
6237 | /* Check size of the memory operand. */ | |
4a1b91ea | 6238 | if (match_broadcast_size (t, op)) |
43234a1e L |
6239 | { |
6240 | i.error = broadcast_needed; | |
6241 | return 1; | |
6242 | } | |
6243 | } | |
c39e5b26 JB |
6244 | else |
6245 | op = MAX_OPERANDS - 1; /* Avoid uninitialized variable warning. */ | |
43234a1e L |
6246 | |
6247 | /* Check if requested masking is supported. */ | |
6225c532 | 6248 | if (i.mask.reg) |
43234a1e | 6249 | { |
ae2387fe JB |
6250 | switch (t->opcode_modifier.masking) |
6251 | { | |
6252 | case BOTH_MASKING: | |
6253 | break; | |
6254 | case MERGING_MASKING: | |
6225c532 | 6255 | if (i.mask.zeroing) |
ae2387fe JB |
6256 | { |
6257 | case 0: | |
6258 | i.error = unsupported_masking; | |
6259 | return 1; | |
6260 | } | |
6261 | break; | |
6262 | case DYNAMIC_MASKING: | |
6263 | /* Memory destinations allow only merging masking. */ | |
6225c532 | 6264 | if (i.mask.zeroing && i.mem_operands) |
ae2387fe JB |
6265 | { |
6266 | /* Find memory operand. */ | |
6267 | for (op = 0; op < i.operands; op++) | |
c48dadc9 | 6268 | if (i.flags[op] & Operand_Mem) |
ae2387fe JB |
6269 | break; |
6270 | gas_assert (op < i.operands); | |
6271 | if (op == i.operands - 1) | |
6272 | { | |
6273 | i.error = unsupported_masking; | |
6274 | return 1; | |
6275 | } | |
6276 | } | |
6277 | break; | |
6278 | default: | |
6279 | abort (); | |
6280 | } | |
43234a1e L |
6281 | } |
6282 | ||
6283 | /* Check if masking is applied to dest operand. */ | |
6225c532 | 6284 | if (i.mask.reg && (i.mask.operand != i.operands - 1)) |
43234a1e L |
6285 | { |
6286 | i.error = mask_not_on_destination; | |
6287 | return 1; | |
6288 | } | |
6289 | ||
43234a1e | 6290 | /* Check RC/SAE. */ |
ca5312a2 | 6291 | if (i.rounding.type != rc_none) |
43234a1e | 6292 | { |
a80195f1 | 6293 | if (!t->opcode_modifier.sae |
cf665fee JB |
6294 | || ((i.rounding.type != saeonly) != t->opcode_modifier.staticrounding) |
6295 | || i.mem_operands) | |
43234a1e L |
6296 | { |
6297 | i.error = unsupported_rc_sae; | |
6298 | return 1; | |
6299 | } | |
cf665fee JB |
6300 | |
6301 | /* Non-EVEX.LIG forms need to have a ZMM register as at least one | |
6302 | operand. */ | |
6303 | if (t->opcode_modifier.evex != EVEXLIG) | |
7bab8ab5 | 6304 | { |
cf665fee JB |
6305 | for (op = 0; op < t->operands; ++op) |
6306 | if (i.types[op].bitfield.zmmword) | |
6307 | break; | |
6308 | if (op >= t->operands) | |
6309 | { | |
6310 | i.error = operand_size_mismatch; | |
6311 | return 1; | |
6312 | } | |
7bab8ab5 | 6313 | } |
6c30d220 L |
6314 | } |
6315 | ||
da4977e0 JB |
6316 | /* Check the special Imm4 cases; must be the first operand. */ |
6317 | if (t->cpu_flags.bitfield.cpuxop && t->operands == 5) | |
6318 | { | |
6319 | if (i.op[0].imms->X_op != O_constant | |
6320 | || !fits_in_imm4 (i.op[0].imms->X_add_number)) | |
6321 | { | |
6322 | i.error = bad_imm4; | |
6323 | return 1; | |
6324 | } | |
6325 | ||
6326 | /* Turn off Imm<N> so that update_imm won't complain. */ | |
6327 | operand_type_set (&i.types[0], 0); | |
6328 | } | |
6329 | ||
43234a1e | 6330 | /* Check vector Disp8 operand. */ |
b5014f7a | 6331 | if (t->opcode_modifier.disp8memshift |
1a42a9fe | 6332 | && i.disp_encoding <= disp_encoding_8bit) |
43234a1e | 6333 | { |
a5748e0d | 6334 | if (i.broadcast.bytes) |
4a1b91ea | 6335 | i.memshift = t->opcode_modifier.broadcast - 1; |
7091c612 | 6336 | else if (t->opcode_modifier.disp8memshift != DISP8_SHIFT_VL) |
43234a1e | 6337 | i.memshift = t->opcode_modifier.disp8memshift; |
7091c612 JB |
6338 | else |
6339 | { | |
125ff819 | 6340 | const i386_operand_type *type = NULL, *fallback = NULL; |
7091c612 JB |
6341 | |
6342 | i.memshift = 0; | |
6343 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 6344 | if (i.flags[op] & Operand_Mem) |
7091c612 | 6345 | { |
4174bfff JB |
6346 | if (t->opcode_modifier.evex == EVEXLIG) |
6347 | i.memshift = 2 + (i.suffix == QWORD_MNEM_SUFFIX); | |
6348 | else if (t->operand_types[op].bitfield.xmmword | |
6349 | + t->operand_types[op].bitfield.ymmword | |
6350 | + t->operand_types[op].bitfield.zmmword <= 1) | |
7091c612 JB |
6351 | type = &t->operand_types[op]; |
6352 | else if (!i.types[op].bitfield.unspecified) | |
6353 | type = &i.types[op]; | |
125ff819 JB |
6354 | else /* Ambiguities get resolved elsewhere. */ |
6355 | fallback = &t->operand_types[op]; | |
7091c612 | 6356 | } |
3528c362 | 6357 | else if (i.types[op].bitfield.class == RegSIMD |
4174bfff | 6358 | && t->opcode_modifier.evex != EVEXLIG) |
7091c612 JB |
6359 | { |
6360 | if (i.types[op].bitfield.zmmword) | |
6361 | i.memshift = 6; | |
6362 | else if (i.types[op].bitfield.ymmword && i.memshift < 5) | |
6363 | i.memshift = 5; | |
6364 | else if (i.types[op].bitfield.xmmword && i.memshift < 4) | |
6365 | i.memshift = 4; | |
6366 | } | |
6367 | ||
125ff819 JB |
6368 | if (!type && !i.memshift) |
6369 | type = fallback; | |
7091c612 JB |
6370 | if (type) |
6371 | { | |
6372 | if (type->bitfield.zmmword) | |
6373 | i.memshift = 6; | |
6374 | else if (type->bitfield.ymmword) | |
6375 | i.memshift = 5; | |
6376 | else if (type->bitfield.xmmword) | |
6377 | i.memshift = 4; | |
6378 | } | |
6379 | ||
6380 | /* For the check in fits_in_disp8(). */ | |
6381 | if (i.memshift == 0) | |
6382 | i.memshift = -1; | |
6383 | } | |
43234a1e L |
6384 | |
6385 | for (op = 0; op < i.operands; op++) | |
6386 | if (operand_type_check (i.types[op], disp) | |
6387 | && i.op[op].disps->X_op == O_constant) | |
6388 | { | |
b5014f7a | 6389 | if (fits_in_disp8 (i.op[op].disps->X_add_number)) |
43234a1e | 6390 | { |
b5014f7a JB |
6391 | i.types[op].bitfield.disp8 = 1; |
6392 | return 0; | |
43234a1e | 6393 | } |
b5014f7a | 6394 | i.types[op].bitfield.disp8 = 0; |
43234a1e L |
6395 | } |
6396 | } | |
b5014f7a JB |
6397 | |
6398 | i.memshift = 0; | |
43234a1e | 6399 | |
6c30d220 L |
6400 | return 0; |
6401 | } | |
6402 | ||
da4977e0 | 6403 | /* Check if encoding requirements are met by the instruction. */ |
a683cc34 SP |
6404 | |
6405 | static int | |
da4977e0 | 6406 | VEX_check_encoding (const insn_template *t) |
a683cc34 | 6407 | { |
da4977e0 JB |
6408 | if (i.vec_encoding == vex_encoding_error) |
6409 | { | |
6410 | i.error = unsupported; | |
6411 | return 1; | |
6412 | } | |
6413 | ||
86fa6981 | 6414 | if (i.vec_encoding == vex_encoding_evex) |
43234a1e | 6415 | { |
86fa6981 | 6416 | /* This instruction must be encoded with EVEX prefix. */ |
e771e7c9 | 6417 | if (!is_evex_encoding (t)) |
86fa6981 L |
6418 | { |
6419 | i.error = unsupported; | |
6420 | return 1; | |
6421 | } | |
6422 | return 0; | |
43234a1e L |
6423 | } |
6424 | ||
a683cc34 | 6425 | if (!t->opcode_modifier.vex) |
86fa6981 L |
6426 | { |
6427 | /* This instruction template doesn't have VEX prefix. */ | |
6428 | if (i.vec_encoding != vex_encoding_default) | |
6429 | { | |
6430 | i.error = unsupported; | |
6431 | return 1; | |
6432 | } | |
6433 | return 0; | |
6434 | } | |
a683cc34 | 6435 | |
a683cc34 SP |
6436 | return 0; |
6437 | } | |
6438 | ||
7b94647a JB |
6439 | /* Helper function for the progress() macro in match_template(). */ |
6440 | static INLINE enum i386_error progress (enum i386_error new, | |
6441 | enum i386_error last, | |
6442 | unsigned int line, unsigned int *line_p) | |
6443 | { | |
6444 | if (line <= *line_p) | |
6445 | return last; | |
6446 | *line_p = line; | |
6447 | return new; | |
6448 | } | |
6449 | ||
d3ce72d0 | 6450 | static const insn_template * |
83b16ac6 | 6451 | match_template (char mnem_suffix) |
29b0f896 AM |
6452 | { |
6453 | /* Points to template once we've found it. */ | |
d3ce72d0 | 6454 | const insn_template *t; |
40fb9820 | 6455 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
c0f3af97 | 6456 | i386_operand_type overlap4; |
29b0f896 | 6457 | unsigned int found_reverse_match; |
dc2be329 | 6458 | i386_opcode_modifier suffix_check; |
40fb9820 | 6459 | i386_operand_type operand_types [MAX_OPERANDS]; |
539e75ad | 6460 | int addr_prefix_disp; |
7b94647a JB |
6461 | unsigned int j, size_match, check_register, errline = __LINE__; |
6462 | enum i386_error specific_error = number_of_operands_mismatch; | |
6463 | #define progress(err) progress (err, specific_error, __LINE__, &errline) | |
29b0f896 | 6464 | |
c0f3af97 L |
6465 | #if MAX_OPERANDS != 5 |
6466 | # error "MAX_OPERANDS must be 5." | |
f48ff2ae L |
6467 | #endif |
6468 | ||
29b0f896 | 6469 | found_reverse_match = 0; |
539e75ad | 6470 | addr_prefix_disp = -1; |
40fb9820 | 6471 | |
dc2be329 | 6472 | /* Prepare for mnemonic suffix check. */ |
40fb9820 | 6473 | memset (&suffix_check, 0, sizeof (suffix_check)); |
dc2be329 L |
6474 | switch (mnem_suffix) |
6475 | { | |
6476 | case BYTE_MNEM_SUFFIX: | |
6477 | suffix_check.no_bsuf = 1; | |
6478 | break; | |
6479 | case WORD_MNEM_SUFFIX: | |
6480 | suffix_check.no_wsuf = 1; | |
6481 | break; | |
6482 | case SHORT_MNEM_SUFFIX: | |
6483 | suffix_check.no_ssuf = 1; | |
6484 | break; | |
6485 | case LONG_MNEM_SUFFIX: | |
6486 | suffix_check.no_lsuf = 1; | |
6487 | break; | |
6488 | case QWORD_MNEM_SUFFIX: | |
6489 | suffix_check.no_qsuf = 1; | |
6490 | break; | |
6491 | default: | |
6492 | /* NB: In Intel syntax, normally we can check for memory operand | |
6493 | size when there is no mnemonic suffix. But jmp and call have | |
6494 | 2 different encodings with Dword memory operand size, one with | |
6495 | No_ldSuf and the other without. i.suffix is set to | |
6496 | LONG_DOUBLE_MNEM_SUFFIX to skip the one with No_ldSuf. */ | |
6497 | if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
6498 | suffix_check.no_ldsuf = 1; | |
83b16ac6 JB |
6499 | } |
6500 | ||
45aa61fe | 6501 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 6502 | { |
539e75ad | 6503 | addr_prefix_disp = -1; |
dbbc8b7e | 6504 | found_reverse_match = 0; |
539e75ad | 6505 | |
7b94647a | 6506 | /* Must have right number of operands. */ |
29b0f896 AM |
6507 | if (i.operands != t->operands) |
6508 | continue; | |
6509 | ||
50aecf8c | 6510 | /* Check processor support. */ |
7b94647a | 6511 | specific_error = progress (unsupported); |
45a4bb20 | 6512 | if (cpu_flags_match (t) != CPU_FLAGS_PERFECT_MATCH) |
50aecf8c L |
6513 | continue; |
6514 | ||
e1d4d893 | 6515 | /* Check AT&T mnemonic. */ |
7b94647a | 6516 | specific_error = progress (unsupported_with_intel_mnemonic); |
e1d4d893 | 6517 | if (intel_mnemonic && t->opcode_modifier.attmnemonic) |
1efbbeb4 L |
6518 | continue; |
6519 | ||
4b5aaf5f | 6520 | /* Check AT&T/Intel syntax. */ |
7b94647a | 6521 | specific_error = progress (unsupported_syntax); |
5c07affc | 6522 | if ((intel_syntax && t->opcode_modifier.attsyntax) |
4b5aaf5f | 6523 | || (!intel_syntax && t->opcode_modifier.intelsyntax)) |
1efbbeb4 L |
6524 | continue; |
6525 | ||
4b5aaf5f L |
6526 | /* Check Intel64/AMD64 ISA. */ |
6527 | switch (isa64) | |
6528 | { | |
6529 | default: | |
6530 | /* Default: Don't accept Intel64. */ | |
6531 | if (t->opcode_modifier.isa64 == INTEL64) | |
6532 | continue; | |
6533 | break; | |
6534 | case amd64: | |
6535 | /* -mamd64: Don't accept Intel64 and Intel64 only. */ | |
6536 | if (t->opcode_modifier.isa64 >= INTEL64) | |
6537 | continue; | |
6538 | break; | |
6539 | case intel64: | |
6540 | /* -mintel64: Don't accept AMD64. */ | |
5990e377 | 6541 | if (t->opcode_modifier.isa64 == AMD64 && flag_code == CODE_64BIT) |
4b5aaf5f L |
6542 | continue; |
6543 | break; | |
6544 | } | |
6545 | ||
dc2be329 | 6546 | /* Check the suffix. */ |
7b94647a | 6547 | specific_error = progress (invalid_instruction_suffix); |
dc2be329 L |
6548 | if ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf) |
6549 | || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf) | |
6550 | || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf) | |
6551 | || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf) | |
6552 | || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf) | |
6553 | || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf)) | |
83b16ac6 | 6554 | continue; |
29b0f896 | 6555 | |
7b94647a | 6556 | specific_error = progress (operand_size_mismatch); |
3ac21baa JB |
6557 | size_match = operand_size_match (t); |
6558 | if (!size_match) | |
7d5e4556 | 6559 | continue; |
539e75ad | 6560 | |
6f2f06be JB |
6561 | /* This is intentionally not |
6562 | ||
0cfa3eb3 | 6563 | if (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE)) |
6f2f06be JB |
6564 | |
6565 | as the case of a missing * on the operand is accepted (perhaps with | |
6566 | a warning, issued further down). */ | |
7b94647a | 6567 | specific_error = progress (operand_type_mismatch); |
0cfa3eb3 | 6568 | if (i.jumpabsolute && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
7b94647a | 6569 | continue; |
6f2f06be | 6570 | |
5c07affc L |
6571 | for (j = 0; j < MAX_OPERANDS; j++) |
6572 | operand_types[j] = t->operand_types[j]; | |
6573 | ||
e365e234 JB |
6574 | /* In general, don't allow |
6575 | - 64-bit operands outside of 64-bit mode, | |
6576 | - 32-bit operands on pre-386. */ | |
7b94647a JB |
6577 | specific_error = progress (mnem_suffix ? invalid_instruction_suffix |
6578 | : operand_size_mismatch); | |
4873e243 | 6579 | j = i.imm_operands + (t->operands > i.imm_operands + 1); |
e365e234 JB |
6580 | if (((i.suffix == QWORD_MNEM_SUFFIX |
6581 | && flag_code != CODE_64BIT | |
389d00a5 JB |
6582 | && !(t->opcode_modifier.opcodespace == SPACE_0F |
6583 | && t->base_opcode == 0xc7 | |
5e74b495 | 6584 | && t->opcode_modifier.opcodeprefix == PREFIX_NONE |
8b65b895 | 6585 | && t->extension_opcode == 1) /* cmpxchg8b */) |
e365e234 JB |
6586 | || (i.suffix == LONG_MNEM_SUFFIX |
6587 | && !cpu_arch_flags.bitfield.cpui386)) | |
45aa61fe | 6588 | && (intel_syntax |
3cd7f3e3 | 6589 | ? (t->opcode_modifier.mnemonicsize != IGNORESIZE |
45aa61fe AM |
6590 | && !intel_float_operand (t->name)) |
6591 | : intel_float_operand (t->name) != 2) | |
4873e243 JB |
6592 | && (t->operands == i.imm_operands |
6593 | || (operand_types[i.imm_operands].bitfield.class != RegMMX | |
6594 | && operand_types[i.imm_operands].bitfield.class != RegSIMD | |
6595 | && operand_types[i.imm_operands].bitfield.class != RegMask) | |
6596 | || (operand_types[j].bitfield.class != RegMMX | |
6597 | && operand_types[j].bitfield.class != RegSIMD | |
6598 | && operand_types[j].bitfield.class != RegMask)) | |
63112cd6 | 6599 | && !t->opcode_modifier.sib) |
192dc9c6 JB |
6600 | continue; |
6601 | ||
29b0f896 | 6602 | /* Do not verify operands when there are none. */ |
e365e234 | 6603 | if (!t->operands) |
da4977e0 JB |
6604 | { |
6605 | if (VEX_check_encoding (t)) | |
6606 | { | |
7b94647a | 6607 | specific_error = progress (i.error); |
da4977e0 JB |
6608 | continue; |
6609 | } | |
6610 | ||
6611 | /* We've found a match; break out of loop. */ | |
6612 | break; | |
6613 | } | |
252b5132 | 6614 | |
48bcea9f JB |
6615 | if (!t->opcode_modifier.jump |
6616 | || t->opcode_modifier.jump == JUMP_ABSOLUTE) | |
6617 | { | |
6618 | /* There should be only one Disp operand. */ | |
6619 | for (j = 0; j < MAX_OPERANDS; j++) | |
6620 | if (operand_type_check (operand_types[j], disp)) | |
539e75ad | 6621 | break; |
48bcea9f JB |
6622 | if (j < MAX_OPERANDS) |
6623 | { | |
5b7c81bd | 6624 | bool override = (i.prefix[ADDR_PREFIX] != 0); |
48bcea9f JB |
6625 | |
6626 | addr_prefix_disp = j; | |
6627 | ||
a775efc8 JB |
6628 | /* Address size prefix will turn Disp64 operand into Disp32 and |
6629 | Disp32/Disp16 one into Disp16/Disp32 respectively. */ | |
48bcea9f | 6630 | switch (flag_code) |
40fb9820 | 6631 | { |
48bcea9f JB |
6632 | case CODE_16BIT: |
6633 | override = !override; | |
6634 | /* Fall through. */ | |
6635 | case CODE_32BIT: | |
6636 | if (operand_types[j].bitfield.disp32 | |
6637 | && operand_types[j].bitfield.disp16) | |
40fb9820 | 6638 | { |
48bcea9f JB |
6639 | operand_types[j].bitfield.disp16 = override; |
6640 | operand_types[j].bitfield.disp32 = !override; | |
40fb9820 | 6641 | } |
a775efc8 | 6642 | gas_assert (!operand_types[j].bitfield.disp64); |
48bcea9f JB |
6643 | break; |
6644 | ||
6645 | case CODE_64BIT: | |
a775efc8 | 6646 | if (operand_types[j].bitfield.disp64) |
40fb9820 | 6647 | { |
a775efc8 | 6648 | gas_assert (!operand_types[j].bitfield.disp32); |
48bcea9f | 6649 | operand_types[j].bitfield.disp32 = override; |
a775efc8 | 6650 | operand_types[j].bitfield.disp64 = !override; |
40fb9820 | 6651 | } |
48bcea9f JB |
6652 | operand_types[j].bitfield.disp16 = 0; |
6653 | break; | |
40fb9820 | 6654 | } |
539e75ad | 6655 | } |
48bcea9f | 6656 | } |
539e75ad | 6657 | |
d7e3e627 L |
6658 | switch (i.reloc[0]) |
6659 | { | |
6660 | case BFD_RELOC_386_GOT32: | |
6661 | /* Force 0x8b encoding for "mov foo@GOT, %eax". */ | |
6662 | if (t->base_opcode == 0xa0 | |
6663 | && t->opcode_modifier.opcodespace == SPACE_BASE) | |
6664 | continue; | |
6665 | break; | |
6666 | case BFD_RELOC_386_TLS_GOTIE: | |
6667 | case BFD_RELOC_386_TLS_LE_32: | |
6668 | case BFD_RELOC_X86_64_GOTTPOFF: | |
6669 | case BFD_RELOC_X86_64_TLSLD: | |
6670 | /* Don't allow KMOV in TLS code sequences. */ | |
6671 | if (t->opcode_modifier.vex) | |
6672 | continue; | |
6673 | break; | |
6674 | default: | |
6675 | break; | |
6676 | } | |
02a86693 | 6677 | |
56ffb741 | 6678 | /* We check register size if needed. */ |
e2195274 JB |
6679 | if (t->opcode_modifier.checkregsize) |
6680 | { | |
6681 | check_register = (1 << t->operands) - 1; | |
a5748e0d | 6682 | if (i.broadcast.type || i.broadcast.bytes) |
5273a3cd | 6683 | check_register &= ~(1 << i.broadcast.operand); |
e2195274 JB |
6684 | } |
6685 | else | |
6686 | check_register = 0; | |
6687 | ||
c6fb90c8 | 6688 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
6689 | switch (t->operands) |
6690 | { | |
6691 | case 1: | |
40fb9820 | 6692 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
6693 | continue; |
6694 | break; | |
6695 | case 2: | |
33eaf5de | 6696 | /* xchg %eax, %eax is a special case. It is an alias for nop |
8b38ad71 L |
6697 | only in 32bit mode and we can use opcode 0x90. In 64bit |
6698 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
6699 | zero-extend %eax to %rax. */ | |
6700 | if (flag_code == CODE_64BIT | |
6701 | && t->base_opcode == 0x90 | |
35648716 | 6702 | && t->opcode_modifier.opcodespace == SPACE_BASE |
75e5731b JB |
6703 | && i.types[0].bitfield.instance == Accum |
6704 | && i.types[0].bitfield.dword | |
6705 | && i.types[1].bitfield.instance == Accum | |
6706 | && i.types[1].bitfield.dword) | |
8b38ad71 | 6707 | continue; |
1212781b JB |
6708 | /* xrelease mov %eax, <disp> is another special case. It must not |
6709 | match the accumulator-only encoding of mov. */ | |
6710 | if (flag_code != CODE_64BIT | |
6711 | && i.hle_prefix | |
6712 | && t->base_opcode == 0xa0 | |
35648716 | 6713 | && t->opcode_modifier.opcodespace == SPACE_BASE |
75e5731b | 6714 | && i.types[0].bitfield.instance == Accum |
8dc0818e | 6715 | && (i.flags[1] & Operand_Mem)) |
1212781b | 6716 | continue; |
f5eb1d70 JB |
6717 | /* Fall through. */ |
6718 | ||
6719 | case 3: | |
3ac21baa JB |
6720 | if (!(size_match & MATCH_STRAIGHT)) |
6721 | goto check_reverse; | |
64c49ab3 JB |
6722 | /* Reverse direction of operands if swapping is possible in the first |
6723 | place (operands need to be symmetric) and | |
6724 | - the load form is requested, and the template is a store form, | |
6725 | - the store form is requested, and the template is a load form, | |
6726 | - the non-default (swapped) form is requested. */ | |
6727 | overlap1 = operand_type_and (operand_types[0], operand_types[1]); | |
f5eb1d70 | 6728 | if (t->opcode_modifier.d && i.reg_operands == i.operands |
64c49ab3 JB |
6729 | && !operand_type_all_zero (&overlap1)) |
6730 | switch (i.dir_encoding) | |
6731 | { | |
6732 | case dir_encoding_load: | |
6733 | if (operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6734 | || t->opcode_modifier.regmem) |
64c49ab3 JB |
6735 | goto check_reverse; |
6736 | break; | |
6737 | ||
6738 | case dir_encoding_store: | |
6739 | if (!operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6740 | && !t->opcode_modifier.regmem) |
64c49ab3 JB |
6741 | goto check_reverse; |
6742 | break; | |
6743 | ||
6744 | case dir_encoding_swap: | |
6745 | goto check_reverse; | |
6746 | ||
6747 | case dir_encoding_default: | |
6748 | break; | |
6749 | } | |
86fa6981 | 6750 | /* If we want store form, we skip the current load. */ |
64c49ab3 JB |
6751 | if ((i.dir_encoding == dir_encoding_store |
6752 | || i.dir_encoding == dir_encoding_swap) | |
86fa6981 L |
6753 | && i.mem_operands == 0 |
6754 | && t->opcode_modifier.load) | |
fa99fab2 | 6755 | continue; |
1a0670f3 | 6756 | /* Fall through. */ |
f48ff2ae | 6757 | case 4: |
c0f3af97 | 6758 | case 5: |
c6fb90c8 | 6759 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
6760 | if (!operand_type_match (overlap0, i.types[0]) |
6761 | || !operand_type_match (overlap1, i.types[1]) | |
e2195274 | 6762 | || ((check_register & 3) == 3 |
dc821c5f | 6763 | && !operand_type_register_match (i.types[0], |
40fb9820 | 6764 | operand_types[0], |
dc821c5f | 6765 | i.types[1], |
40fb9820 | 6766 | operand_types[1]))) |
29b0f896 | 6767 | { |
7b94647a JB |
6768 | specific_error = progress (i.error); |
6769 | ||
29b0f896 | 6770 | /* Check if other direction is valid ... */ |
38e314eb | 6771 | if (!t->opcode_modifier.d) |
29b0f896 AM |
6772 | continue; |
6773 | ||
dc1e8a47 | 6774 | check_reverse: |
3ac21baa JB |
6775 | if (!(size_match & MATCH_REVERSE)) |
6776 | continue; | |
29b0f896 | 6777 | /* Try reversing direction of operands. */ |
8bd915b7 JB |
6778 | j = t->opcode_modifier.vexsources ? 1 : i.operands - 1; |
6779 | overlap0 = operand_type_and (i.types[0], operand_types[j]); | |
6780 | overlap1 = operand_type_and (i.types[j], operand_types[0]); | |
c975cec5 JB |
6781 | overlap2 = operand_type_and (i.types[1], operand_types[1]); |
6782 | gas_assert (t->operands != 3 || !check_register); | |
40fb9820 | 6783 | if (!operand_type_match (overlap0, i.types[0]) |
8bd915b7 | 6784 | || !operand_type_match (overlap1, i.types[j]) |
c975cec5 JB |
6785 | || (t->operands == 3 |
6786 | && !operand_type_match (overlap2, i.types[1])) | |
45664ddb | 6787 | || (check_register |
dc821c5f | 6788 | && !operand_type_register_match (i.types[0], |
8bd915b7 JB |
6789 | operand_types[j], |
6790 | i.types[j], | |
45664ddb | 6791 | operand_types[0]))) |
29b0f896 AM |
6792 | { |
6793 | /* Does not match either direction. */ | |
7b94647a | 6794 | specific_error = progress (i.error); |
29b0f896 AM |
6795 | continue; |
6796 | } | |
38e314eb | 6797 | /* found_reverse_match holds which of D or FloatR |
29b0f896 | 6798 | we've found. */ |
38e314eb JB |
6799 | if (!t->opcode_modifier.d) |
6800 | found_reverse_match = 0; | |
6801 | else if (operand_types[0].bitfield.tbyte) | |
8a2ed489 | 6802 | found_reverse_match = Opcode_FloatD; |
8bd915b7 JB |
6803 | else if (t->opcode_modifier.vexsources) |
6804 | { | |
6805 | found_reverse_match = Opcode_VexW; | |
6806 | goto check_operands_345; | |
6807 | } | |
2c735193 JB |
6808 | else if (t->opcode_modifier.opcodespace != SPACE_BASE |
6809 | && (t->opcode_modifier.opcodespace != SPACE_0F | |
6810 | /* MOV to/from CR/DR/TR, as an exception, follow | |
6811 | the base opcode space encoding model. */ | |
6812 | || (t->base_opcode | 7) != 0x27)) | |
dbbc8b7e | 6813 | found_reverse_match = (t->base_opcode & 0xee) != 0x6e |
2c735193 | 6814 | ? Opcode_ExtD : Opcode_SIMD_IntD; |
8a2ed489 | 6815 | else |
38e314eb | 6816 | found_reverse_match = Opcode_D; |
40fb9820 | 6817 | if (t->opcode_modifier.floatr) |
8a2ed489 | 6818 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 6819 | } |
f48ff2ae | 6820 | else |
29b0f896 | 6821 | { |
f48ff2ae | 6822 | /* Found a forward 2 operand match here. */ |
8bd915b7 | 6823 | check_operands_345: |
d1cbb4db L |
6824 | switch (t->operands) |
6825 | { | |
c0f3af97 | 6826 | case 5: |
3d0738af | 6827 | overlap4 = operand_type_and (i.types[4], operand_types[4]); |
c0f3af97 | 6828 | if (!operand_type_match (overlap4, i.types[4]) |
dc821c5f | 6829 | || !operand_type_register_match (i.types[3], |
c0f3af97 | 6830 | operand_types[3], |
c0f3af97 L |
6831 | i.types[4], |
6832 | operand_types[4])) | |
7b94647a JB |
6833 | { |
6834 | specific_error = progress (i.error); | |
6835 | continue; | |
6836 | } | |
1a0670f3 | 6837 | /* Fall through. */ |
f48ff2ae | 6838 | case 4: |
3d0738af | 6839 | overlap3 = operand_type_and (i.types[3], operand_types[3]); |
40fb9820 | 6840 | if (!operand_type_match (overlap3, i.types[3]) |
e2195274 JB |
6841 | || ((check_register & 0xa) == 0xa |
6842 | && !operand_type_register_match (i.types[1], | |
f7768225 JB |
6843 | operand_types[1], |
6844 | i.types[3], | |
e2195274 JB |
6845 | operand_types[3])) |
6846 | || ((check_register & 0xc) == 0xc | |
6847 | && !operand_type_register_match (i.types[2], | |
6848 | operand_types[2], | |
6849 | i.types[3], | |
6850 | operand_types[3]))) | |
7b94647a JB |
6851 | { |
6852 | specific_error = progress (i.error); | |
6853 | continue; | |
6854 | } | |
1a0670f3 | 6855 | /* Fall through. */ |
f48ff2ae | 6856 | case 3: |
3d0738af | 6857 | overlap2 = operand_type_and (i.types[2], operand_types[2]); |
40fb9820 | 6858 | if (!operand_type_match (overlap2, i.types[2]) |
e2195274 JB |
6859 | || ((check_register & 5) == 5 |
6860 | && !operand_type_register_match (i.types[0], | |
23e42951 JB |
6861 | operand_types[0], |
6862 | i.types[2], | |
e2195274 JB |
6863 | operand_types[2])) |
6864 | || ((check_register & 6) == 6 | |
6865 | && !operand_type_register_match (i.types[1], | |
6866 | operand_types[1], | |
6867 | i.types[2], | |
6868 | operand_types[2]))) | |
7b94647a JB |
6869 | { |
6870 | specific_error = progress (i.error); | |
6871 | continue; | |
6872 | } | |
f48ff2ae L |
6873 | break; |
6874 | } | |
29b0f896 | 6875 | } |
f48ff2ae | 6876 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
6877 | slip through to break. */ |
6878 | } | |
c0f3af97 | 6879 | |
9bb4d860 L |
6880 | /* Check if VEX/EVEX encoding requirements can be satisfied. */ |
6881 | if (VEX_check_encoding (t)) | |
da4977e0 | 6882 | { |
7b94647a | 6883 | specific_error = progress (i.error); |
da4977e0 JB |
6884 | continue; |
6885 | } | |
6886 | ||
9bb4d860 L |
6887 | /* Check if vector operands are valid. */ |
6888 | if (check_VecOperands (t)) | |
5614d22c | 6889 | { |
7b94647a | 6890 | specific_error = progress (i.error); |
5614d22c JB |
6891 | continue; |
6892 | } | |
a683cc34 | 6893 | |
29b0f896 AM |
6894 | /* We've found a match; break out of loop. */ |
6895 | break; | |
6896 | } | |
6897 | ||
7b94647a JB |
6898 | #undef progress |
6899 | ||
29b0f896 AM |
6900 | if (t == current_templates->end) |
6901 | { | |
6902 | /* We found no match. */ | |
a65babc9 | 6903 | const char *err_msg; |
7b94647a | 6904 | switch (specific_error) |
a65babc9 L |
6905 | { |
6906 | default: | |
6907 | abort (); | |
86e026a4 | 6908 | case operand_size_mismatch: |
a65babc9 L |
6909 | err_msg = _("operand size mismatch"); |
6910 | break; | |
6911 | case operand_type_mismatch: | |
6912 | err_msg = _("operand type mismatch"); | |
6913 | break; | |
6914 | case register_type_mismatch: | |
6915 | err_msg = _("register type mismatch"); | |
6916 | break; | |
6917 | case number_of_operands_mismatch: | |
6918 | err_msg = _("number of operands mismatch"); | |
6919 | break; | |
6920 | case invalid_instruction_suffix: | |
6921 | err_msg = _("invalid instruction suffix"); | |
6922 | break; | |
6923 | case bad_imm4: | |
4a2608e3 | 6924 | err_msg = _("constant doesn't fit in 4 bits"); |
a65babc9 | 6925 | break; |
a65babc9 L |
6926 | case unsupported_with_intel_mnemonic: |
6927 | err_msg = _("unsupported with Intel mnemonic"); | |
6928 | break; | |
6929 | case unsupported_syntax: | |
6930 | err_msg = _("unsupported syntax"); | |
6931 | break; | |
6932 | case unsupported: | |
35262a23 | 6933 | as_bad (_("unsupported instruction `%s'"), |
10efe3f6 L |
6934 | current_templates->start->name); |
6935 | return NULL; | |
260cd341 LC |
6936 | case invalid_sib_address: |
6937 | err_msg = _("invalid SIB address"); | |
6938 | break; | |
6c30d220 L |
6939 | case invalid_vsib_address: |
6940 | err_msg = _("invalid VSIB address"); | |
6941 | break; | |
7bab8ab5 JB |
6942 | case invalid_vector_register_set: |
6943 | err_msg = _("mask, index, and destination registers must be distinct"); | |
6944 | break; | |
260cd341 LC |
6945 | case invalid_tmm_register_set: |
6946 | err_msg = _("all tmm registers must be distinct"); | |
6947 | break; | |
0cc78721 CL |
6948 | case invalid_dest_and_src_register_set: |
6949 | err_msg = _("destination and source registers must be distinct"); | |
6950 | break; | |
6c30d220 L |
6951 | case unsupported_vector_index_register: |
6952 | err_msg = _("unsupported vector index register"); | |
6953 | break; | |
43234a1e L |
6954 | case unsupported_broadcast: |
6955 | err_msg = _("unsupported broadcast"); | |
6956 | break; | |
43234a1e L |
6957 | case broadcast_needed: |
6958 | err_msg = _("broadcast is needed for operand of such type"); | |
6959 | break; | |
6960 | case unsupported_masking: | |
6961 | err_msg = _("unsupported masking"); | |
6962 | break; | |
6963 | case mask_not_on_destination: | |
6964 | err_msg = _("mask not on destination operand"); | |
6965 | break; | |
6966 | case no_default_mask: | |
6967 | err_msg = _("default mask isn't allowed"); | |
6968 | break; | |
6969 | case unsupported_rc_sae: | |
6970 | err_msg = _("unsupported static rounding/sae"); | |
6971 | break; | |
43234a1e L |
6972 | case invalid_register_operand: |
6973 | err_msg = _("invalid register operand"); | |
6974 | break; | |
a65babc9 L |
6975 | } |
6976 | as_bad (_("%s for `%s'"), err_msg, | |
891edac4 | 6977 | current_templates->start->name); |
fa99fab2 | 6978 | return NULL; |
29b0f896 | 6979 | } |
252b5132 | 6980 | |
29b0f896 AM |
6981 | if (!quiet_warnings) |
6982 | { | |
6983 | if (!intel_syntax | |
0cfa3eb3 | 6984 | && (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE))) |
6f2f06be | 6985 | as_warn (_("indirect %s without `*'"), t->name); |
29b0f896 | 6986 | |
40fb9820 | 6987 | if (t->opcode_modifier.isprefix |
3cd7f3e3 | 6988 | && t->opcode_modifier.mnemonicsize == IGNORESIZE) |
29b0f896 AM |
6989 | { |
6990 | /* Warn them that a data or address size prefix doesn't | |
6991 | affect assembly of the next line of code. */ | |
6992 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
6993 | } | |
6994 | } | |
6995 | ||
6996 | /* Copy the template we found. */ | |
9a182d04 | 6997 | install_template (t); |
539e75ad L |
6998 | |
6999 | if (addr_prefix_disp != -1) | |
7000 | i.tm.operand_types[addr_prefix_disp] | |
7001 | = operand_types[addr_prefix_disp]; | |
7002 | ||
8bd915b7 | 7003 | switch (found_reverse_match) |
29b0f896 | 7004 | { |
8bd915b7 JB |
7005 | case 0: |
7006 | break; | |
7007 | ||
7008 | default: | |
dfd69174 JB |
7009 | /* If we found a reverse match we must alter the opcode direction |
7010 | bit and clear/flip the regmem modifier one. found_reverse_match | |
7011 | holds bits to change (different for int & float insns). */ | |
29b0f896 AM |
7012 | |
7013 | i.tm.base_opcode ^= found_reverse_match; | |
7014 | ||
f5eb1d70 JB |
7015 | i.tm.operand_types[0] = operand_types[i.operands - 1]; |
7016 | i.tm.operand_types[i.operands - 1] = operand_types[0]; | |
dfd69174 JB |
7017 | |
7018 | /* Certain SIMD insns have their load forms specified in the opcode | |
7019 | table, and hence we need to _set_ RegMem instead of clearing it. | |
7020 | We need to avoid setting the bit though on insns like KMOVW. */ | |
7021 | i.tm.opcode_modifier.regmem | |
7022 | = i.tm.opcode_modifier.modrm && i.tm.opcode_modifier.d | |
7023 | && i.tm.operands > 2U - i.tm.opcode_modifier.sse2avx | |
7024 | && !i.tm.opcode_modifier.regmem; | |
8bd915b7 JB |
7025 | break; |
7026 | ||
7027 | case Opcode_VexW: | |
7028 | /* Only the first two register operands need reversing, alongside | |
7029 | flipping VEX.W. */ | |
7030 | i.tm.opcode_modifier.vexw ^= VEXW0 ^ VEXW1; | |
7031 | ||
7032 | j = i.tm.operand_types[0].bitfield.imm8; | |
7033 | i.tm.operand_types[j] = operand_types[j + 1]; | |
7034 | i.tm.operand_types[j + 1] = operand_types[j]; | |
7035 | break; | |
29b0f896 AM |
7036 | } |
7037 | ||
fa99fab2 | 7038 | return t; |
29b0f896 AM |
7039 | } |
7040 | ||
7041 | static int | |
e3bb37b5 | 7042 | check_string (void) |
29b0f896 | 7043 | { |
51c8edf6 JB |
7044 | unsigned int es_op = i.tm.opcode_modifier.isstring - IS_STRING_ES_OP0; |
7045 | unsigned int op = i.tm.operand_types[0].bitfield.baseindex ? es_op : 0; | |
8dc0818e | 7046 | |
5e042380 | 7047 | if (i.seg[op] != NULL && i.seg[op] != reg_es) |
29b0f896 | 7048 | { |
51c8edf6 JB |
7049 | as_bad (_("`%s' operand %u must use `%ses' segment"), |
7050 | i.tm.name, | |
7051 | intel_syntax ? i.tm.operands - es_op : es_op + 1, | |
7052 | register_prefix); | |
7053 | return 0; | |
29b0f896 | 7054 | } |
51c8edf6 JB |
7055 | |
7056 | /* There's only ever one segment override allowed per instruction. | |
7057 | This instruction possibly has a legal segment override on the | |
7058 | second operand, so copy the segment to where non-string | |
7059 | instructions store it, allowing common code. */ | |
7060 | i.seg[op] = i.seg[1]; | |
7061 | ||
29b0f896 AM |
7062 | return 1; |
7063 | } | |
7064 | ||
7065 | static int | |
543613e9 | 7066 | process_suffix (void) |
29b0f896 | 7067 | { |
5b7c81bd | 7068 | bool is_crc32 = false, is_movx = false; |
8b65b895 | 7069 | |
29b0f896 AM |
7070 | /* If matched instruction specifies an explicit instruction mnemonic |
7071 | suffix, use it. */ | |
673fe0f0 | 7072 | if (i.tm.opcode_modifier.size == SIZE16) |
40fb9820 | 7073 | i.suffix = WORD_MNEM_SUFFIX; |
673fe0f0 | 7074 | else if (i.tm.opcode_modifier.size == SIZE32) |
40fb9820 | 7075 | i.suffix = LONG_MNEM_SUFFIX; |
673fe0f0 | 7076 | else if (i.tm.opcode_modifier.size == SIZE64) |
40fb9820 | 7077 | i.suffix = QWORD_MNEM_SUFFIX; |
13e600d0 | 7078 | else if (i.reg_operands |
c8f8eebc | 7079 | && (i.operands > 1 || i.types[0].bitfield.class == Reg) |
255571cd | 7080 | && i.tm.opcode_modifier.operandconstraint != ADDR_PREFIX_OP_REG) |
29b0f896 | 7081 | { |
65fca059 | 7082 | unsigned int numop = i.operands; |
389d00a5 JB |
7083 | |
7084 | /* MOVSX/MOVZX */ | |
7085 | is_movx = (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
7086 | && (i.tm.base_opcode | 8) == 0xbe) | |
7087 | || (i.tm.opcode_modifier.opcodespace == SPACE_BASE | |
7088 | && i.tm.base_opcode == 0x63 | |
7089 | && i.tm.cpu_flags.bitfield.cpu64); | |
7090 | ||
8b65b895 | 7091 | /* CRC32 */ |
389d00a5 JB |
7092 | is_crc32 = (i.tm.base_opcode == 0xf0 |
7093 | && i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
8b65b895 | 7094 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2); |
65fca059 JB |
7095 | |
7096 | /* movsx/movzx want only their source operand considered here, for the | |
7097 | ambiguity checking below. The suffix will be replaced afterwards | |
7098 | to represent the destination (register). */ | |
389d00a5 | 7099 | if (is_movx && (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63)) |
65fca059 JB |
7100 | --i.operands; |
7101 | ||
643bb870 | 7102 | /* crc32 needs REX.W set regardless of suffix / source operand size. */ |
8b65b895 | 7103 | if (is_crc32 && i.tm.operand_types[1].bitfield.qword) |
643bb870 JB |
7104 | i.rex |= REX_W; |
7105 | ||
29b0f896 | 7106 | /* If there's no instruction mnemonic suffix we try to invent one |
13e600d0 | 7107 | based on GPR operands. */ |
29b0f896 AM |
7108 | if (!i.suffix) |
7109 | { | |
7110 | /* We take i.suffix from the last register operand specified, | |
7111 | Destination register type is more significant than source | |
381d071f L |
7112 | register type. crc32 in SSE4.2 prefers source register |
7113 | type. */ | |
8b65b895 | 7114 | unsigned int op = is_crc32 ? 1 : i.operands; |
20592a94 | 7115 | |
1a035124 JB |
7116 | while (op--) |
7117 | if (i.tm.operand_types[op].bitfield.instance == InstanceNone | |
7118 | || i.tm.operand_types[op].bitfield.instance == Accum) | |
7119 | { | |
7120 | if (i.types[op].bitfield.class != Reg) | |
7121 | continue; | |
7122 | if (i.types[op].bitfield.byte) | |
7123 | i.suffix = BYTE_MNEM_SUFFIX; | |
7124 | else if (i.types[op].bitfield.word) | |
7125 | i.suffix = WORD_MNEM_SUFFIX; | |
7126 | else if (i.types[op].bitfield.dword) | |
7127 | i.suffix = LONG_MNEM_SUFFIX; | |
7128 | else if (i.types[op].bitfield.qword) | |
7129 | i.suffix = QWORD_MNEM_SUFFIX; | |
7130 | else | |
7131 | continue; | |
7132 | break; | |
7133 | } | |
65fca059 JB |
7134 | |
7135 | /* As an exception, movsx/movzx silently default to a byte source | |
7136 | in AT&T mode. */ | |
389d00a5 | 7137 | if (is_movx && i.tm.opcode_modifier.w && !i.suffix && !intel_syntax) |
65fca059 | 7138 | i.suffix = BYTE_MNEM_SUFFIX; |
29b0f896 AM |
7139 | } |
7140 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
7141 | { | |
1cb0ab18 | 7142 | if (!check_byte_reg ()) |
29b0f896 AM |
7143 | return 0; |
7144 | } | |
7145 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
7146 | { | |
1cb0ab18 | 7147 | if (!check_long_reg ()) |
29b0f896 AM |
7148 | return 0; |
7149 | } | |
7150 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
7151 | { | |
1cb0ab18 | 7152 | if (!check_qword_reg ()) |
29b0f896 AM |
7153 | return 0; |
7154 | } | |
7155 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
7156 | { | |
1cb0ab18 | 7157 | if (!check_word_reg ()) |
29b0f896 AM |
7158 | return 0; |
7159 | } | |
3cd7f3e3 L |
7160 | else if (intel_syntax |
7161 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE) | |
29b0f896 AM |
7162 | /* Do nothing if the instruction is going to ignore the prefix. */ |
7163 | ; | |
7164 | else | |
7165 | abort (); | |
65fca059 JB |
7166 | |
7167 | /* Undo the movsx/movzx change done above. */ | |
7168 | i.operands = numop; | |
29b0f896 | 7169 | } |
3cd7f3e3 L |
7170 | else if (i.tm.opcode_modifier.mnemonicsize == DEFAULTSIZE |
7171 | && !i.suffix) | |
29b0f896 | 7172 | { |
13e600d0 JB |
7173 | i.suffix = stackop_size; |
7174 | if (stackop_size == LONG_MNEM_SUFFIX) | |
06f74c5c L |
7175 | { |
7176 | /* stackop_size is set to LONG_MNEM_SUFFIX for the | |
7177 | .code16gcc directive to support 16-bit mode with | |
7178 | 32-bit address. For IRET without a suffix, generate | |
7179 | 16-bit IRET (opcode 0xcf) to return from an interrupt | |
7180 | handler. */ | |
13e600d0 JB |
7181 | if (i.tm.base_opcode == 0xcf) |
7182 | { | |
7183 | i.suffix = WORD_MNEM_SUFFIX; | |
7184 | as_warn (_("generating 16-bit `iret' for .code16gcc directive")); | |
7185 | } | |
7186 | /* Warn about changed behavior for segment register push/pop. */ | |
7187 | else if ((i.tm.base_opcode | 1) == 0x07) | |
7188 | as_warn (_("generating 32-bit `%s', unlike earlier gas versions"), | |
7189 | i.tm.name); | |
06f74c5c | 7190 | } |
29b0f896 | 7191 | } |
c006a730 | 7192 | else if (!i.suffix |
0cfa3eb3 JB |
7193 | && (i.tm.opcode_modifier.jump == JUMP_ABSOLUTE |
7194 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
7195 | || i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT | |
389d00a5 JB |
7196 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
7197 | && i.tm.base_opcode == 0x01 /* [ls][gi]dt */ | |
64e74474 | 7198 | && i.tm.extension_opcode <= 3))) |
9306ca4a JB |
7199 | { |
7200 | switch (flag_code) | |
7201 | { | |
7202 | case CODE_64BIT: | |
40fb9820 | 7203 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a | 7204 | { |
828c2a25 JB |
7205 | if (i.tm.opcode_modifier.jump == JUMP_BYTE |
7206 | || i.tm.opcode_modifier.no_lsuf) | |
7207 | i.suffix = QWORD_MNEM_SUFFIX; | |
9306ca4a JB |
7208 | break; |
7209 | } | |
1a0670f3 | 7210 | /* Fall through. */ |
9306ca4a | 7211 | case CODE_32BIT: |
40fb9820 | 7212 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
7213 | i.suffix = LONG_MNEM_SUFFIX; |
7214 | break; | |
7215 | case CODE_16BIT: | |
40fb9820 | 7216 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
7217 | i.suffix = WORD_MNEM_SUFFIX; |
7218 | break; | |
7219 | } | |
7220 | } | |
252b5132 | 7221 | |
c006a730 | 7222 | if (!i.suffix |
3cd7f3e3 | 7223 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 JB |
7224 | /* Also cover lret/retf/iret in 64-bit mode. */ |
7225 | || (flag_code == CODE_64BIT | |
7226 | && !i.tm.opcode_modifier.no_lsuf | |
7227 | && !i.tm.opcode_modifier.no_qsuf)) | |
3cd7f3e3 | 7228 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
8bbb3ad8 JB |
7229 | /* Explicit sizing prefixes are assumed to disambiguate insns. */ |
7230 | && !i.prefix[DATA_PREFIX] && !(i.prefix[REX_PREFIX] & REX_W) | |
62b3f548 JB |
7231 | /* Accept FLDENV et al without suffix. */ |
7232 | && (i.tm.opcode_modifier.no_ssuf || i.tm.opcode_modifier.floatmf)) | |
29b0f896 | 7233 | { |
6c0946d0 | 7234 | unsigned int suffixes, evex = 0; |
c006a730 JB |
7235 | |
7236 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
7237 | if (!i.tm.opcode_modifier.no_wsuf) | |
7238 | suffixes |= 1 << 1; | |
7239 | if (!i.tm.opcode_modifier.no_lsuf) | |
7240 | suffixes |= 1 << 2; | |
7241 | if (!i.tm.opcode_modifier.no_ldsuf) | |
7242 | suffixes |= 1 << 3; | |
7243 | if (!i.tm.opcode_modifier.no_ssuf) | |
7244 | suffixes |= 1 << 4; | |
7245 | if (flag_code == CODE_64BIT && !i.tm.opcode_modifier.no_qsuf) | |
7246 | suffixes |= 1 << 5; | |
7247 | ||
6c0946d0 JB |
7248 | /* For [XYZ]MMWORD operands inspect operand sizes. While generally |
7249 | also suitable for AT&T syntax mode, it was requested that this be | |
7250 | restricted to just Intel syntax. */ | |
a5748e0d JB |
7251 | if (intel_syntax && is_any_vex_encoding (&i.tm) |
7252 | && !i.broadcast.type && !i.broadcast.bytes) | |
6c0946d0 | 7253 | { |
b9915cbc | 7254 | unsigned int op; |
6c0946d0 | 7255 | |
b9915cbc | 7256 | for (op = 0; op < i.tm.operands; ++op) |
6c0946d0 | 7257 | { |
b9915cbc JB |
7258 | if (is_evex_encoding (&i.tm) |
7259 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
6c0946d0 | 7260 | { |
b9915cbc JB |
7261 | if (i.tm.operand_types[op].bitfield.ymmword) |
7262 | i.tm.operand_types[op].bitfield.xmmword = 0; | |
7263 | if (i.tm.operand_types[op].bitfield.zmmword) | |
7264 | i.tm.operand_types[op].bitfield.ymmword = 0; | |
7265 | if (!i.tm.opcode_modifier.evex | |
7266 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
7267 | i.tm.opcode_modifier.evex = EVEX512; | |
7268 | } | |
6c0946d0 | 7269 | |
b9915cbc JB |
7270 | if (i.tm.operand_types[op].bitfield.xmmword |
7271 | + i.tm.operand_types[op].bitfield.ymmword | |
7272 | + i.tm.operand_types[op].bitfield.zmmword < 2) | |
7273 | continue; | |
6c0946d0 | 7274 | |
b9915cbc JB |
7275 | /* Any properly sized operand disambiguates the insn. */ |
7276 | if (i.types[op].bitfield.xmmword | |
7277 | || i.types[op].bitfield.ymmword | |
7278 | || i.types[op].bitfield.zmmword) | |
7279 | { | |
7280 | suffixes &= ~(7 << 6); | |
7281 | evex = 0; | |
7282 | break; | |
7283 | } | |
6c0946d0 | 7284 | |
b9915cbc JB |
7285 | if ((i.flags[op] & Operand_Mem) |
7286 | && i.tm.operand_types[op].bitfield.unspecified) | |
7287 | { | |
7288 | if (i.tm.operand_types[op].bitfield.xmmword) | |
7289 | suffixes |= 1 << 6; | |
7290 | if (i.tm.operand_types[op].bitfield.ymmword) | |
7291 | suffixes |= 1 << 7; | |
7292 | if (i.tm.operand_types[op].bitfield.zmmword) | |
7293 | suffixes |= 1 << 8; | |
7294 | if (is_evex_encoding (&i.tm)) | |
7295 | evex = EVEX512; | |
6c0946d0 JB |
7296 | } |
7297 | } | |
7298 | } | |
7299 | ||
7300 | /* Are multiple suffixes / operand sizes allowed? */ | |
c006a730 | 7301 | if (suffixes & (suffixes - 1)) |
9306ca4a | 7302 | { |
873494c8 | 7303 | if (intel_syntax |
3cd7f3e3 | 7304 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 | 7305 | || operand_check == check_error)) |
9306ca4a | 7306 | { |
c006a730 | 7307 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); |
9306ca4a JB |
7308 | return 0; |
7309 | } | |
c006a730 | 7310 | if (operand_check == check_error) |
9306ca4a | 7311 | { |
c006a730 JB |
7312 | as_bad (_("no instruction mnemonic suffix given and " |
7313 | "no register operands; can't size `%s'"), i.tm.name); | |
9306ca4a JB |
7314 | return 0; |
7315 | } | |
c006a730 | 7316 | if (operand_check == check_warning) |
873494c8 JB |
7317 | as_warn (_("%s; using default for `%s'"), |
7318 | intel_syntax | |
7319 | ? _("ambiguous operand size") | |
7320 | : _("no instruction mnemonic suffix given and " | |
7321 | "no register operands"), | |
7322 | i.tm.name); | |
c006a730 JB |
7323 | |
7324 | if (i.tm.opcode_modifier.floatmf) | |
7325 | i.suffix = SHORT_MNEM_SUFFIX; | |
389d00a5 | 7326 | else if (is_movx) |
65fca059 | 7327 | /* handled below */; |
6c0946d0 JB |
7328 | else if (evex) |
7329 | i.tm.opcode_modifier.evex = evex; | |
c006a730 JB |
7330 | else if (flag_code == CODE_16BIT) |
7331 | i.suffix = WORD_MNEM_SUFFIX; | |
1a035124 | 7332 | else if (!i.tm.opcode_modifier.no_lsuf) |
c006a730 | 7333 | i.suffix = LONG_MNEM_SUFFIX; |
1a035124 JB |
7334 | else |
7335 | i.suffix = QWORD_MNEM_SUFFIX; | |
9306ca4a | 7336 | } |
29b0f896 | 7337 | } |
252b5132 | 7338 | |
389d00a5 | 7339 | if (is_movx) |
65fca059 JB |
7340 | { |
7341 | /* In Intel syntax, movsx/movzx must have a "suffix" (checked above). | |
7342 | In AT&T syntax, if there is no suffix (warned about above), the default | |
7343 | will be byte extension. */ | |
7344 | if (i.tm.opcode_modifier.w && i.suffix && i.suffix != BYTE_MNEM_SUFFIX) | |
7345 | i.tm.base_opcode |= 1; | |
7346 | ||
7347 | /* For further processing, the suffix should represent the destination | |
7348 | (register). This is already the case when one was used with | |
7349 | mov[sz][bw]*, but we need to replace it for mov[sz]x, or if there was | |
7350 | no suffix to begin with. */ | |
7351 | if (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63 || !i.suffix) | |
7352 | { | |
7353 | if (i.types[1].bitfield.word) | |
7354 | i.suffix = WORD_MNEM_SUFFIX; | |
7355 | else if (i.types[1].bitfield.qword) | |
7356 | i.suffix = QWORD_MNEM_SUFFIX; | |
7357 | else | |
7358 | i.suffix = LONG_MNEM_SUFFIX; | |
7359 | ||
7360 | i.tm.opcode_modifier.w = 0; | |
7361 | } | |
7362 | } | |
7363 | ||
50128d0c JB |
7364 | if (!i.tm.opcode_modifier.modrm && i.reg_operands && i.tm.operands < 3) |
7365 | i.short_form = (i.tm.operand_types[0].bitfield.class == Reg) | |
7366 | != (i.tm.operand_types[1].bitfield.class == Reg); | |
7367 | ||
d2224064 JB |
7368 | /* Change the opcode based on the operand size given by i.suffix. */ |
7369 | switch (i.suffix) | |
29b0f896 | 7370 | { |
d2224064 JB |
7371 | /* Size floating point instruction. */ |
7372 | case LONG_MNEM_SUFFIX: | |
7373 | if (i.tm.opcode_modifier.floatmf) | |
7374 | { | |
7375 | i.tm.base_opcode ^= 4; | |
7376 | break; | |
7377 | } | |
7378 | /* fall through */ | |
7379 | case WORD_MNEM_SUFFIX: | |
7380 | case QWORD_MNEM_SUFFIX: | |
29b0f896 | 7381 | /* It's not a byte, select word/dword operation. */ |
40fb9820 | 7382 | if (i.tm.opcode_modifier.w) |
29b0f896 | 7383 | { |
50128d0c | 7384 | if (i.short_form) |
29b0f896 AM |
7385 | i.tm.base_opcode |= 8; |
7386 | else | |
7387 | i.tm.base_opcode |= 1; | |
7388 | } | |
d2224064 JB |
7389 | /* fall through */ |
7390 | case SHORT_MNEM_SUFFIX: | |
29b0f896 AM |
7391 | /* Now select between word & dword operations via the operand |
7392 | size prefix, except for instructions that will ignore this | |
7393 | prefix anyway. */ | |
c8f8eebc | 7394 | if (i.suffix != QWORD_MNEM_SUFFIX |
3cd7f3e3 | 7395 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
c8f8eebc JB |
7396 | && !i.tm.opcode_modifier.floatmf |
7397 | && !is_any_vex_encoding (&i.tm) | |
7398 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) | |
7399 | || (flag_code == CODE_64BIT | |
7400 | && i.tm.opcode_modifier.jump == JUMP_BYTE))) | |
24eab124 AM |
7401 | { |
7402 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 7403 | |
0cfa3eb3 | 7404 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) /* jcxz, loop */ |
29b0f896 | 7405 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 7406 | |
29b0f896 AM |
7407 | if (!add_prefix (prefix)) |
7408 | return 0; | |
24eab124 | 7409 | } |
252b5132 | 7410 | |
29b0f896 AM |
7411 | /* Set mode64 for an operand. */ |
7412 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 7413 | && flag_code == CODE_64BIT |
d2224064 | 7414 | && !i.tm.opcode_modifier.norex64 |
4ed21b58 | 7415 | && !i.tm.opcode_modifier.vexw |
46e883c5 | 7416 | /* Special case for xchg %rax,%rax. It is NOP and doesn't |
d2224064 JB |
7417 | need rex64. */ |
7418 | && ! (i.operands == 2 | |
7419 | && i.tm.base_opcode == 0x90 | |
7420 | && i.tm.extension_opcode == None | |
75e5731b JB |
7421 | && i.types[0].bitfield.instance == Accum |
7422 | && i.types[0].bitfield.qword | |
7423 | && i.types[1].bitfield.instance == Accum | |
7424 | && i.types[1].bitfield.qword)) | |
d2224064 | 7425 | i.rex |= REX_W; |
3e73aa7c | 7426 | |
d2224064 | 7427 | break; |
8bbb3ad8 JB |
7428 | |
7429 | case 0: | |
f9a6a8f0 | 7430 | /* Select word/dword/qword operation with explicit data sizing prefix |
8bbb3ad8 JB |
7431 | when there are no suitable register operands. */ |
7432 | if (i.tm.opcode_modifier.w | |
7433 | && (i.prefix[DATA_PREFIX] || (i.prefix[REX_PREFIX] & REX_W)) | |
7434 | && (!i.reg_operands | |
7435 | || (i.reg_operands == 1 | |
7436 | /* ShiftCount */ | |
7437 | && (i.tm.operand_types[0].bitfield.instance == RegC | |
7438 | /* InOutPortReg */ | |
7439 | || i.tm.operand_types[0].bitfield.instance == RegD | |
7440 | || i.tm.operand_types[1].bitfield.instance == RegD | |
7441 | /* CRC32 */ | |
8b65b895 | 7442 | || is_crc32)))) |
8bbb3ad8 JB |
7443 | i.tm.base_opcode |= 1; |
7444 | break; | |
29b0f896 | 7445 | } |
7ecd2f8b | 7446 | |
255571cd | 7447 | if (i.tm.opcode_modifier.operandconstraint == ADDR_PREFIX_OP_REG) |
c0a30a9f | 7448 | { |
c8f8eebc JB |
7449 | gas_assert (!i.suffix); |
7450 | gas_assert (i.reg_operands); | |
c0a30a9f | 7451 | |
c8f8eebc JB |
7452 | if (i.tm.operand_types[0].bitfield.instance == Accum |
7453 | || i.operands == 1) | |
7454 | { | |
7455 | /* The address size override prefix changes the size of the | |
7456 | first operand. */ | |
7457 | if (flag_code == CODE_64BIT | |
7458 | && i.op[0].regs->reg_type.bitfield.word) | |
7459 | { | |
7460 | as_bad (_("16-bit addressing unavailable for `%s'"), | |
7461 | i.tm.name); | |
7462 | return 0; | |
7463 | } | |
7464 | ||
7465 | if ((flag_code == CODE_32BIT | |
7466 | ? i.op[0].regs->reg_type.bitfield.word | |
7467 | : i.op[0].regs->reg_type.bitfield.dword) | |
7468 | && !add_prefix (ADDR_PREFIX_OPCODE)) | |
7469 | return 0; | |
7470 | } | |
c0a30a9f L |
7471 | else |
7472 | { | |
c8f8eebc JB |
7473 | /* Check invalid register operand when the address size override |
7474 | prefix changes the size of register operands. */ | |
7475 | unsigned int op; | |
7476 | enum { need_word, need_dword, need_qword } need; | |
7477 | ||
27f13469 | 7478 | /* Check the register operand for the address size prefix if |
b3a3496f | 7479 | the memory operand has no real registers, like symbol, DISP |
829f3fe1 | 7480 | or bogus (x32-only) symbol(%rip) when symbol(%eip) is meant. */ |
27f13469 L |
7481 | if (i.mem_operands == 1 |
7482 | && i.reg_operands == 1 | |
7483 | && i.operands == 2 | |
27f13469 | 7484 | && i.types[1].bitfield.class == Reg |
b3a3496f L |
7485 | && (flag_code == CODE_32BIT |
7486 | ? i.op[1].regs->reg_type.bitfield.word | |
7487 | : i.op[1].regs->reg_type.bitfield.dword) | |
7488 | && ((i.base_reg == NULL && i.index_reg == NULL) | |
829f3fe1 JB |
7489 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
7490 | || (x86_elf_abi == X86_64_X32_ABI | |
7491 | && i.base_reg | |
b3a3496f L |
7492 | && i.base_reg->reg_num == RegIP |
7493 | && i.base_reg->reg_type.bitfield.qword)) | |
829f3fe1 JB |
7494 | #else |
7495 | || 0) | |
7496 | #endif | |
27f13469 L |
7497 | && !add_prefix (ADDR_PREFIX_OPCODE)) |
7498 | return 0; | |
7499 | ||
c8f8eebc JB |
7500 | if (flag_code == CODE_32BIT) |
7501 | need = i.prefix[ADDR_PREFIX] ? need_word : need_dword; | |
7502 | else if (i.prefix[ADDR_PREFIX]) | |
c0a30a9f L |
7503 | need = need_dword; |
7504 | else | |
7505 | need = flag_code == CODE_64BIT ? need_qword : need_word; | |
c0a30a9f | 7506 | |
c8f8eebc JB |
7507 | for (op = 0; op < i.operands; op++) |
7508 | { | |
7509 | if (i.types[op].bitfield.class != Reg) | |
7510 | continue; | |
7511 | ||
7512 | switch (need) | |
7513 | { | |
7514 | case need_word: | |
7515 | if (i.op[op].regs->reg_type.bitfield.word) | |
7516 | continue; | |
7517 | break; | |
7518 | case need_dword: | |
7519 | if (i.op[op].regs->reg_type.bitfield.dword) | |
7520 | continue; | |
7521 | break; | |
7522 | case need_qword: | |
7523 | if (i.op[op].regs->reg_type.bitfield.qword) | |
7524 | continue; | |
7525 | break; | |
7526 | } | |
7527 | ||
7528 | as_bad (_("invalid register operand size for `%s'"), | |
7529 | i.tm.name); | |
7530 | return 0; | |
7531 | } | |
7532 | } | |
c0a30a9f L |
7533 | } |
7534 | ||
29b0f896 AM |
7535 | return 1; |
7536 | } | |
3e73aa7c | 7537 | |
29b0f896 | 7538 | static int |
543613e9 | 7539 | check_byte_reg (void) |
29b0f896 AM |
7540 | { |
7541 | int op; | |
543613e9 | 7542 | |
29b0f896 AM |
7543 | for (op = i.operands; --op >= 0;) |
7544 | { | |
dc821c5f | 7545 | /* Skip non-register operands. */ |
bab6aec1 | 7546 | if (i.types[op].bitfield.class != Reg) |
dc821c5f JB |
7547 | continue; |
7548 | ||
29b0f896 AM |
7549 | /* If this is an eight bit register, it's OK. If it's the 16 or |
7550 | 32 bit version of an eight bit register, we will just use the | |
7551 | low portion, and that's OK too. */ | |
dc821c5f | 7552 | if (i.types[op].bitfield.byte) |
29b0f896 AM |
7553 | continue; |
7554 | ||
5a819eb9 | 7555 | /* I/O port address operands are OK too. */ |
75e5731b JB |
7556 | if (i.tm.operand_types[op].bitfield.instance == RegD |
7557 | && i.tm.operand_types[op].bitfield.word) | |
5a819eb9 JB |
7558 | continue; |
7559 | ||
9706160a | 7560 | /* crc32 only wants its source operand checked here. */ |
389d00a5 JB |
7561 | if (i.tm.base_opcode == 0xf0 |
7562 | && i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
8b65b895 L |
7563 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2 |
7564 | && op != 0) | |
9344ff29 L |
7565 | continue; |
7566 | ||
29b0f896 | 7567 | /* Any other register is bad. */ |
73c76375 JB |
7568 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7569 | register_prefix, i.op[op].regs->reg_name, | |
7570 | i.tm.name, i.suffix); | |
7571 | return 0; | |
29b0f896 AM |
7572 | } |
7573 | return 1; | |
7574 | } | |
7575 | ||
7576 | static int | |
e3bb37b5 | 7577 | check_long_reg (void) |
29b0f896 AM |
7578 | { |
7579 | int op; | |
7580 | ||
7581 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7582 | /* Skip non-register operands. */ |
bab6aec1 | 7583 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7584 | continue; |
29b0f896 AM |
7585 | /* Reject eight bit registers, except where the template requires |
7586 | them. (eg. movzb) */ | |
dc821c5f | 7587 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7588 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7589 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7590 | && (i.tm.operand_types[op].bitfield.word |
7591 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7592 | { |
a540244d L |
7593 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7594 | register_prefix, | |
29b0f896 AM |
7595 | i.op[op].regs->reg_name, |
7596 | i.tm.name, | |
7597 | i.suffix); | |
7598 | return 0; | |
7599 | } | |
be4c5e58 L |
7600 | /* Error if the e prefix on a general reg is missing. */ |
7601 | else if (i.types[op].bitfield.word | |
bab6aec1 | 7602 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7603 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7604 | && i.tm.operand_types[op].bitfield.dword) |
29b0f896 | 7605 | { |
be4c5e58 L |
7606 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7607 | register_prefix, i.op[op].regs->reg_name, | |
7608 | i.suffix); | |
7609 | return 0; | |
252b5132 | 7610 | } |
e4630f71 | 7611 | /* Warn if the r prefix on a general reg is present. */ |
dc821c5f | 7612 | else if (i.types[op].bitfield.qword |
bab6aec1 | 7613 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7614 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7615 | && i.tm.operand_types[op].bitfield.dword) |
252b5132 | 7616 | { |
1cb0ab18 JB |
7617 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7618 | register_prefix, i.op[op].regs->reg_name, i.suffix); | |
7619 | return 0; | |
29b0f896 AM |
7620 | } |
7621 | return 1; | |
7622 | } | |
252b5132 | 7623 | |
29b0f896 | 7624 | static int |
e3bb37b5 | 7625 | check_qword_reg (void) |
29b0f896 AM |
7626 | { |
7627 | int op; | |
252b5132 | 7628 | |
29b0f896 | 7629 | for (op = i.operands; --op >= 0; ) |
dc821c5f | 7630 | /* Skip non-register operands. */ |
bab6aec1 | 7631 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7632 | continue; |
29b0f896 AM |
7633 | /* Reject eight bit registers, except where the template requires |
7634 | them. (eg. movzb) */ | |
dc821c5f | 7635 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7636 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7637 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7638 | && (i.tm.operand_types[op].bitfield.word |
7639 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7640 | { |
a540244d L |
7641 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7642 | register_prefix, | |
29b0f896 AM |
7643 | i.op[op].regs->reg_name, |
7644 | i.tm.name, | |
7645 | i.suffix); | |
7646 | return 0; | |
7647 | } | |
e4630f71 | 7648 | /* Warn if the r prefix on a general reg is missing. */ |
dc821c5f JB |
7649 | else if ((i.types[op].bitfield.word |
7650 | || i.types[op].bitfield.dword) | |
bab6aec1 | 7651 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7652 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7653 | && i.tm.operand_types[op].bitfield.qword) |
29b0f896 AM |
7654 | { |
7655 | /* Prohibit these changes in the 64bit mode, since the | |
7656 | lowering is more complicated. */ | |
1cb0ab18 JB |
7657 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7658 | register_prefix, i.op[op].regs->reg_name, i.suffix); | |
7659 | return 0; | |
252b5132 | 7660 | } |
29b0f896 AM |
7661 | return 1; |
7662 | } | |
252b5132 | 7663 | |
29b0f896 | 7664 | static int |
e3bb37b5 | 7665 | check_word_reg (void) |
29b0f896 AM |
7666 | { |
7667 | int op; | |
7668 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7669 | /* Skip non-register operands. */ |
bab6aec1 | 7670 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7671 | continue; |
29b0f896 AM |
7672 | /* Reject eight bit registers, except where the template requires |
7673 | them. (eg. movzb) */ | |
dc821c5f | 7674 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7675 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7676 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7677 | && (i.tm.operand_types[op].bitfield.word |
7678 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7679 | { |
a540244d L |
7680 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7681 | register_prefix, | |
29b0f896 AM |
7682 | i.op[op].regs->reg_name, |
7683 | i.tm.name, | |
7684 | i.suffix); | |
7685 | return 0; | |
7686 | } | |
9706160a JB |
7687 | /* Error if the e or r prefix on a general reg is present. */ |
7688 | else if ((i.types[op].bitfield.dword | |
dc821c5f | 7689 | || i.types[op].bitfield.qword) |
bab6aec1 | 7690 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7691 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7692 | && i.tm.operand_types[op].bitfield.word) |
252b5132 | 7693 | { |
9706160a JB |
7694 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7695 | register_prefix, i.op[op].regs->reg_name, | |
7696 | i.suffix); | |
7697 | return 0; | |
29b0f896 AM |
7698 | } |
7699 | return 1; | |
7700 | } | |
252b5132 | 7701 | |
29b0f896 | 7702 | static int |
40fb9820 | 7703 | update_imm (unsigned int j) |
29b0f896 | 7704 | { |
bc0844ae | 7705 | i386_operand_type overlap = i.types[j]; |
be1643ff JB |
7706 | if (overlap.bitfield.imm8 |
7707 | + overlap.bitfield.imm8s | |
7708 | + overlap.bitfield.imm16 | |
7709 | + overlap.bitfield.imm32 | |
7710 | + overlap.bitfield.imm32s | |
7711 | + overlap.bitfield.imm64 > 1) | |
29b0f896 AM |
7712 | { |
7713 | if (i.suffix) | |
7714 | { | |
40fb9820 L |
7715 | i386_operand_type temp; |
7716 | ||
0dfbf9d7 | 7717 | operand_type_set (&temp, 0); |
7ab9ffdd | 7718 | if (i.suffix == BYTE_MNEM_SUFFIX) |
40fb9820 L |
7719 | { |
7720 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
7721 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
7722 | } | |
7723 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
7724 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
7725 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
7726 | { | |
7727 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
7728 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
7729 | } | |
7730 | else | |
7731 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
7732 | overlap = temp; | |
29b0f896 | 7733 | } |
0dfbf9d7 L |
7734 | else if (operand_type_equal (&overlap, &imm16_32_32s) |
7735 | || operand_type_equal (&overlap, &imm16_32) | |
7736 | || operand_type_equal (&overlap, &imm16_32s)) | |
29b0f896 | 7737 | { |
40fb9820 | 7738 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
65da13b5 | 7739 | overlap = imm16; |
40fb9820 | 7740 | else |
65da13b5 | 7741 | overlap = imm32s; |
29b0f896 | 7742 | } |
8bbb3ad8 JB |
7743 | else if (i.prefix[REX_PREFIX] & REX_W) |
7744 | overlap = operand_type_and (overlap, imm32s); | |
7745 | else if (i.prefix[DATA_PREFIX]) | |
7746 | overlap = operand_type_and (overlap, | |
7747 | flag_code != CODE_16BIT ? imm16 : imm32); | |
be1643ff JB |
7748 | if (overlap.bitfield.imm8 |
7749 | + overlap.bitfield.imm8s | |
7750 | + overlap.bitfield.imm16 | |
7751 | + overlap.bitfield.imm32 | |
7752 | + overlap.bitfield.imm32s | |
7753 | + overlap.bitfield.imm64 != 1) | |
29b0f896 | 7754 | { |
4eed87de AM |
7755 | as_bad (_("no instruction mnemonic suffix given; " |
7756 | "can't determine immediate size")); | |
29b0f896 AM |
7757 | return 0; |
7758 | } | |
7759 | } | |
40fb9820 | 7760 | i.types[j] = overlap; |
29b0f896 | 7761 | |
40fb9820 L |
7762 | return 1; |
7763 | } | |
7764 | ||
7765 | static int | |
7766 | finalize_imm (void) | |
7767 | { | |
bc0844ae | 7768 | unsigned int j, n; |
29b0f896 | 7769 | |
bc0844ae L |
7770 | /* Update the first 2 immediate operands. */ |
7771 | n = i.operands > 2 ? 2 : i.operands; | |
7772 | if (n) | |
7773 | { | |
7774 | for (j = 0; j < n; j++) | |
7775 | if (update_imm (j) == 0) | |
7776 | return 0; | |
40fb9820 | 7777 | |
bc0844ae L |
7778 | /* The 3rd operand can't be immediate operand. */ |
7779 | gas_assert (operand_type_check (i.types[2], imm) == 0); | |
7780 | } | |
29b0f896 AM |
7781 | |
7782 | return 1; | |
7783 | } | |
7784 | ||
7785 | static int | |
e3bb37b5 | 7786 | process_operands (void) |
29b0f896 AM |
7787 | { |
7788 | /* Default segment register this instruction will use for memory | |
7789 | accesses. 0 means unknown. This is only for optimizing out | |
7790 | unnecessary segment overrides. */ | |
5e042380 | 7791 | const reg_entry *default_seg = NULL; |
29b0f896 | 7792 | |
a5aeccd9 JB |
7793 | if (i.tm.opcode_modifier.sse2avx) |
7794 | { | |
7795 | /* Legacy encoded insns allow explicit REX prefixes, so these prefixes | |
7796 | need converting. */ | |
7797 | i.rex |= i.prefix[REX_PREFIX] & (REX_W | REX_R | REX_X | REX_B); | |
7798 | i.prefix[REX_PREFIX] = 0; | |
7799 | i.rex_encoding = 0; | |
7800 | } | |
c423d21a JB |
7801 | /* ImmExt should be processed after SSE2AVX. */ |
7802 | else if (i.tm.opcode_modifier.immext) | |
7803 | process_immext (); | |
a5aeccd9 | 7804 | |
2426c15f | 7805 | if (i.tm.opcode_modifier.sse2avx && i.tm.opcode_modifier.vexvvvv) |
29b0f896 | 7806 | { |
91d6fa6a NC |
7807 | unsigned int dupl = i.operands; |
7808 | unsigned int dest = dupl - 1; | |
9fcfb3d7 L |
7809 | unsigned int j; |
7810 | ||
c0f3af97 | 7811 | /* The destination must be an xmm register. */ |
9c2799c2 | 7812 | gas_assert (i.reg_operands |
91d6fa6a | 7813 | && MAX_OPERANDS > dupl |
7ab9ffdd | 7814 | && operand_type_equal (&i.types[dest], ®xmm)); |
c0f3af97 | 7815 | |
75e5731b | 7816 | if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7817 | && i.tm.operand_types[0].bitfield.xmmword) |
e2ec9d29 | 7818 | { |
8cd7925b | 7819 | if (i.tm.opcode_modifier.vexsources == VEX3SOURCES) |
c0f3af97 L |
7820 | { |
7821 | /* Keep xmm0 for instructions with VEX prefix and 3 | |
7822 | sources. */ | |
75e5731b | 7823 | i.tm.operand_types[0].bitfield.instance = InstanceNone; |
3528c362 | 7824 | i.tm.operand_types[0].bitfield.class = RegSIMD; |
c0f3af97 L |
7825 | goto duplicate; |
7826 | } | |
e2ec9d29 | 7827 | else |
c0f3af97 L |
7828 | { |
7829 | /* We remove the first xmm0 and keep the number of | |
7830 | operands unchanged, which in fact duplicates the | |
7831 | destination. */ | |
7832 | for (j = 1; j < i.operands; j++) | |
7833 | { | |
7834 | i.op[j - 1] = i.op[j]; | |
7835 | i.types[j - 1] = i.types[j]; | |
7836 | i.tm.operand_types[j - 1] = i.tm.operand_types[j]; | |
8dc0818e | 7837 | i.flags[j - 1] = i.flags[j]; |
c0f3af97 L |
7838 | } |
7839 | } | |
7840 | } | |
255571cd | 7841 | else if (i.tm.opcode_modifier.operandconstraint == IMPLICIT_1ST_XMM0) |
7ab9ffdd | 7842 | { |
91d6fa6a | 7843 | gas_assert ((MAX_OPERANDS - 1) > dupl |
8cd7925b L |
7844 | && (i.tm.opcode_modifier.vexsources |
7845 | == VEX3SOURCES)); | |
c0f3af97 L |
7846 | |
7847 | /* Add the implicit xmm0 for instructions with VEX prefix | |
7848 | and 3 sources. */ | |
7849 | for (j = i.operands; j > 0; j--) | |
7850 | { | |
7851 | i.op[j] = i.op[j - 1]; | |
7852 | i.types[j] = i.types[j - 1]; | |
7853 | i.tm.operand_types[j] = i.tm.operand_types[j - 1]; | |
8dc0818e | 7854 | i.flags[j] = i.flags[j - 1]; |
c0f3af97 L |
7855 | } |
7856 | i.op[0].regs | |
629310ab | 7857 | = (const reg_entry *) str_hash_find (reg_hash, "xmm0"); |
7ab9ffdd | 7858 | i.types[0] = regxmm; |
c0f3af97 L |
7859 | i.tm.operand_types[0] = regxmm; |
7860 | ||
7861 | i.operands += 2; | |
7862 | i.reg_operands += 2; | |
7863 | i.tm.operands += 2; | |
7864 | ||
91d6fa6a | 7865 | dupl++; |
c0f3af97 | 7866 | dest++; |
91d6fa6a NC |
7867 | i.op[dupl] = i.op[dest]; |
7868 | i.types[dupl] = i.types[dest]; | |
7869 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7870 | i.flags[dupl] = i.flags[dest]; |
e2ec9d29 | 7871 | } |
c0f3af97 L |
7872 | else |
7873 | { | |
dc1e8a47 | 7874 | duplicate: |
c0f3af97 L |
7875 | i.operands++; |
7876 | i.reg_operands++; | |
7877 | i.tm.operands++; | |
7878 | ||
91d6fa6a NC |
7879 | i.op[dupl] = i.op[dest]; |
7880 | i.types[dupl] = i.types[dest]; | |
7881 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7882 | i.flags[dupl] = i.flags[dest]; |
c0f3af97 L |
7883 | } |
7884 | ||
7885 | if (i.tm.opcode_modifier.immext) | |
7886 | process_immext (); | |
7887 | } | |
75e5731b | 7888 | else if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7889 | && i.tm.operand_types[0].bitfield.xmmword) |
c0f3af97 L |
7890 | { |
7891 | unsigned int j; | |
7892 | ||
9fcfb3d7 L |
7893 | for (j = 1; j < i.operands; j++) |
7894 | { | |
7895 | i.op[j - 1] = i.op[j]; | |
7896 | i.types[j - 1] = i.types[j]; | |
7897 | ||
7898 | /* We need to adjust fields in i.tm since they are used by | |
7899 | build_modrm_byte. */ | |
7900 | i.tm.operand_types [j - 1] = i.tm.operand_types [j]; | |
8dc0818e JB |
7901 | |
7902 | i.flags[j - 1] = i.flags[j]; | |
9fcfb3d7 L |
7903 | } |
7904 | ||
e2ec9d29 L |
7905 | i.operands--; |
7906 | i.reg_operands--; | |
e2ec9d29 L |
7907 | i.tm.operands--; |
7908 | } | |
255571cd | 7909 | else if (i.tm.opcode_modifier.operandconstraint == IMPLICIT_QUAD_GROUP) |
920d2ddc | 7910 | { |
a477a8c4 JB |
7911 | unsigned int regnum, first_reg_in_group, last_reg_in_group; |
7912 | ||
920d2ddc | 7913 | /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */ |
3528c362 | 7914 | gas_assert (i.operands >= 2 && i.types[1].bitfield.class == RegSIMD); |
a477a8c4 JB |
7915 | regnum = register_number (i.op[1].regs); |
7916 | first_reg_in_group = regnum & ~3; | |
7917 | last_reg_in_group = first_reg_in_group + 3; | |
7918 | if (regnum != first_reg_in_group) | |
7919 | as_warn (_("source register `%s%s' implicitly denotes" | |
7920 | " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"), | |
7921 | register_prefix, i.op[1].regs->reg_name, | |
7922 | register_prefix, i.op[1].regs->reg_name, first_reg_in_group, | |
7923 | register_prefix, i.op[1].regs->reg_name, last_reg_in_group, | |
7924 | i.tm.name); | |
7925 | } | |
255571cd | 7926 | else if (i.tm.opcode_modifier.operandconstraint == REG_KLUDGE) |
e2ec9d29 L |
7927 | { |
7928 | /* The imul $imm, %reg instruction is converted into | |
7929 | imul $imm, %reg, %reg, and the clr %reg instruction | |
7930 | is converted into xor %reg, %reg. */ | |
7931 | ||
7932 | unsigned int first_reg_op; | |
7933 | ||
7934 | if (operand_type_check (i.types[0], reg)) | |
7935 | first_reg_op = 0; | |
7936 | else | |
7937 | first_reg_op = 1; | |
7938 | /* Pretend we saw the extra register operand. */ | |
9c2799c2 | 7939 | gas_assert (i.reg_operands == 1 |
7ab9ffdd | 7940 | && i.op[first_reg_op + 1].regs == 0); |
e2ec9d29 L |
7941 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; |
7942 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
7943 | i.operands++; | |
7944 | i.reg_operands++; | |
29b0f896 AM |
7945 | } |
7946 | ||
85b80b0f | 7947 | if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
7948 | { |
7949 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
7950 | must be put into the modrm byte). Now, we make the modrm and |
7951 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
7952 | |
7953 | default_seg = build_modrm_byte (); | |
7954 | } | |
00cee14f | 7955 | else if (i.types[0].bitfield.class == SReg) |
85b80b0f JB |
7956 | { |
7957 | if (flag_code != CODE_64BIT | |
7958 | ? i.tm.base_opcode == POP_SEG_SHORT | |
7959 | && i.op[0].regs->reg_num == 1 | |
389d00a5 | 7960 | : (i.tm.base_opcode | 1) == (POP_SEG386_SHORT & 0xff) |
85b80b0f JB |
7961 | && i.op[0].regs->reg_num < 4) |
7962 | { | |
7963 | as_bad (_("you can't `%s %s%s'"), | |
7964 | i.tm.name, register_prefix, i.op[0].regs->reg_name); | |
7965 | return 0; | |
7966 | } | |
389d00a5 JB |
7967 | if (i.op[0].regs->reg_num > 3 |
7968 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE ) | |
85b80b0f | 7969 | { |
389d00a5 JB |
7970 | i.tm.base_opcode ^= (POP_SEG_SHORT ^ POP_SEG386_SHORT) & 0xff; |
7971 | i.tm.opcode_modifier.opcodespace = SPACE_0F; | |
85b80b0f JB |
7972 | } |
7973 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); | |
7974 | } | |
389d00a5 JB |
7975 | else if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
7976 | && (i.tm.base_opcode & ~3) == MOV_AX_DISP32) | |
29b0f896 | 7977 | { |
5e042380 | 7978 | default_seg = reg_ds; |
29b0f896 | 7979 | } |
40fb9820 | 7980 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
7981 | { |
7982 | /* For the string instructions that allow a segment override | |
7983 | on one of their operands, the default segment is ds. */ | |
5e042380 | 7984 | default_seg = reg_ds; |
29b0f896 | 7985 | } |
50128d0c | 7986 | else if (i.short_form) |
85b80b0f JB |
7987 | { |
7988 | /* The register or float register operand is in operand | |
7989 | 0 or 1. */ | |
bab6aec1 | 7990 | unsigned int op = i.tm.operand_types[0].bitfield.class != Reg; |
85b80b0f JB |
7991 | |
7992 | /* Register goes in low 3 bits of opcode. */ | |
7993 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
7994 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
7995 | i.rex |= REX_B; | |
255571cd | 7996 | if (!quiet_warnings && i.tm.opcode_modifier.operandconstraint == UGH) |
85b80b0f JB |
7997 | { |
7998 | /* Warn about some common errors, but press on regardless. | |
7999 | The first case can be generated by gcc (<= 2.8.1). */ | |
8000 | if (i.operands == 2) | |
8001 | { | |
8002 | /* Reversed arguments on faddp, fsubp, etc. */ | |
8003 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, | |
8004 | register_prefix, i.op[!intel_syntax].regs->reg_name, | |
8005 | register_prefix, i.op[intel_syntax].regs->reg_name); | |
8006 | } | |
8007 | else | |
8008 | { | |
8009 | /* Extraneous `l' suffix on fp insn. */ | |
8010 | as_warn (_("translating to `%s %s%s'"), i.tm.name, | |
8011 | register_prefix, i.op[0].regs->reg_name); | |
8012 | } | |
8013 | } | |
8014 | } | |
29b0f896 | 8015 | |
514a8bb0 | 8016 | if ((i.seg[0] || i.prefix[SEG_PREFIX]) |
514a8bb0 | 8017 | && i.tm.base_opcode == 0x8d /* lea */ |
35648716 | 8018 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
514a8bb0 | 8019 | && !is_any_vex_encoding(&i.tm)) |
92334ad2 JB |
8020 | { |
8021 | if (!quiet_warnings) | |
8022 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); | |
8023 | if (optimize) | |
8024 | { | |
8025 | i.seg[0] = NULL; | |
8026 | i.prefix[SEG_PREFIX] = 0; | |
8027 | } | |
8028 | } | |
52271982 AM |
8029 | |
8030 | /* If a segment was explicitly specified, and the specified segment | |
b6773884 JB |
8031 | is neither the default nor the one already recorded from a prefix, |
8032 | use an opcode prefix to select it. If we never figured out what | |
8033 | the default segment is, then default_seg will be zero at this | |
8034 | point, and the specified segment prefix will always be used. */ | |
8035 | if (i.seg[0] | |
8036 | && i.seg[0] != default_seg | |
5e042380 | 8037 | && i386_seg_prefixes[i.seg[0]->reg_num] != i.prefix[SEG_PREFIX]) |
29b0f896 | 8038 | { |
5e042380 | 8039 | if (!add_prefix (i386_seg_prefixes[i.seg[0]->reg_num])) |
29b0f896 AM |
8040 | return 0; |
8041 | } | |
8042 | return 1; | |
8043 | } | |
8044 | ||
a5aeccd9 | 8045 | static INLINE void set_rex_vrex (const reg_entry *r, unsigned int rex_bit, |
5b7c81bd | 8046 | bool do_sse2avx) |
a5aeccd9 JB |
8047 | { |
8048 | if (r->reg_flags & RegRex) | |
8049 | { | |
8050 | if (i.rex & rex_bit) | |
8051 | as_bad (_("same type of prefix used twice")); | |
8052 | i.rex |= rex_bit; | |
8053 | } | |
8054 | else if (do_sse2avx && (i.rex & rex_bit) && i.vex.register_specifier) | |
8055 | { | |
8056 | gas_assert (i.vex.register_specifier == r); | |
8057 | i.vex.register_specifier += 8; | |
8058 | } | |
8059 | ||
8060 | if (r->reg_flags & RegVRex) | |
8061 | i.vrex |= rex_bit; | |
8062 | } | |
8063 | ||
5e042380 | 8064 | static const reg_entry * |
e3bb37b5 | 8065 | build_modrm_byte (void) |
29b0f896 | 8066 | { |
5e042380 | 8067 | const reg_entry *default_seg = NULL; |
c0f3af97 | 8068 | unsigned int source, dest; |
8cd7925b | 8069 | int vex_3_sources; |
c0f3af97 | 8070 | |
8cd7925b | 8071 | vex_3_sources = i.tm.opcode_modifier.vexsources == VEX3SOURCES; |
c0f3af97 L |
8072 | if (vex_3_sources) |
8073 | { | |
91d6fa6a | 8074 | unsigned int nds, reg_slot; |
4c2c6516 | 8075 | expressionS *exp; |
c0f3af97 | 8076 | |
6b8d3588 | 8077 | dest = i.operands - 1; |
c0f3af97 | 8078 | nds = dest - 1; |
922d8de8 | 8079 | |
a683cc34 | 8080 | /* There are 2 kinds of instructions: |
bed3d976 | 8081 | 1. 5 operands: 4 register operands or 3 register operands |
9d3bf266 | 8082 | plus 1 memory operand plus one Imm4 operand, VexXDS, and |
bed3d976 | 8083 | VexW0 or VexW1. The destination must be either XMM, YMM or |
43234a1e | 8084 | ZMM register. |
bed3d976 | 8085 | 2. 4 operands: 4 register operands or 3 register operands |
2f1bada2 | 8086 | plus 1 memory operand, with VexXDS. */ |
922d8de8 | 8087 | gas_assert ((i.reg_operands == 4 |
bed3d976 JB |
8088 | || (i.reg_operands == 3 && i.mem_operands == 1)) |
8089 | && i.tm.opcode_modifier.vexvvvv == VEXXDS | |
dcd7e323 | 8090 | && i.tm.opcode_modifier.vexw |
3528c362 | 8091 | && i.tm.operand_types[dest].bitfield.class == RegSIMD); |
a683cc34 | 8092 | |
48db9223 JB |
8093 | /* If VexW1 is set, the first non-immediate operand is the source and |
8094 | the second non-immediate one is encoded in the immediate operand. */ | |
8095 | if (i.tm.opcode_modifier.vexw == VEXW1) | |
8096 | { | |
8097 | source = i.imm_operands; | |
8098 | reg_slot = i.imm_operands + 1; | |
8099 | } | |
8100 | else | |
8101 | { | |
8102 | source = i.imm_operands + 1; | |
8103 | reg_slot = i.imm_operands; | |
8104 | } | |
8105 | ||
a683cc34 | 8106 | if (i.imm_operands == 0) |
bed3d976 JB |
8107 | { |
8108 | /* When there is no immediate operand, generate an 8bit | |
8109 | immediate operand to encode the first operand. */ | |
8110 | exp = &im_expressions[i.imm_operands++]; | |
8111 | i.op[i.operands].imms = exp; | |
be1643ff | 8112 | i.types[i.operands].bitfield.imm8 = 1; |
bed3d976 JB |
8113 | i.operands++; |
8114 | ||
3528c362 | 8115 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
bed3d976 JB |
8116 | exp->X_op = O_constant; |
8117 | exp->X_add_number = register_number (i.op[reg_slot].regs) << 4; | |
43234a1e L |
8118 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
8119 | } | |
922d8de8 | 8120 | else |
bed3d976 | 8121 | { |
9d3bf266 JB |
8122 | gas_assert (i.imm_operands == 1); |
8123 | gas_assert (fits_in_imm4 (i.op[0].imms->X_add_number)); | |
8124 | gas_assert (!i.tm.opcode_modifier.immext); | |
a683cc34 | 8125 | |
9d3bf266 JB |
8126 | /* Turn on Imm8 again so that output_imm will generate it. */ |
8127 | i.types[0].bitfield.imm8 = 1; | |
bed3d976 | 8128 | |
3528c362 | 8129 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
9d3bf266 | 8130 | i.op[0].imms->X_add_number |
bed3d976 | 8131 | |= register_number (i.op[reg_slot].regs) << 4; |
43234a1e | 8132 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
bed3d976 | 8133 | } |
a683cc34 | 8134 | |
3528c362 | 8135 | gas_assert (i.tm.operand_types[nds].bitfield.class == RegSIMD); |
dae39acc | 8136 | i.vex.register_specifier = i.op[nds].regs; |
c0f3af97 L |
8137 | } |
8138 | else | |
8139 | source = dest = 0; | |
29b0f896 AM |
8140 | |
8141 | /* i.reg_operands MUST be the number of real register operands; | |
c0f3af97 L |
8142 | implicit registers do not count. If there are 3 register |
8143 | operands, it must be a instruction with VexNDS. For a | |
8144 | instruction with VexNDD, the destination register is encoded | |
8145 | in VEX prefix. If there are 4 register operands, it must be | |
8146 | a instruction with VEX prefix and 3 sources. */ | |
7ab9ffdd L |
8147 | if (i.mem_operands == 0 |
8148 | && ((i.reg_operands == 2 | |
2426c15f | 8149 | && i.tm.opcode_modifier.vexvvvv <= VEXXDS) |
7ab9ffdd | 8150 | || (i.reg_operands == 3 |
2426c15f | 8151 | && i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd | 8152 | || (i.reg_operands == 4 && vex_3_sources))) |
29b0f896 | 8153 | { |
cab737b9 L |
8154 | switch (i.operands) |
8155 | { | |
8156 | case 2: | |
8157 | source = 0; | |
8158 | break; | |
8159 | case 3: | |
c81128dc L |
8160 | /* When there are 3 operands, one of them may be immediate, |
8161 | which may be the first or the last operand. Otherwise, | |
c0f3af97 L |
8162 | the first operand must be shift count register (cl) or it |
8163 | is an instruction with VexNDS. */ | |
9c2799c2 | 8164 | gas_assert (i.imm_operands == 1 |
7ab9ffdd | 8165 | || (i.imm_operands == 0 |
2426c15f | 8166 | && (i.tm.opcode_modifier.vexvvvv == VEXXDS |
75e5731b JB |
8167 | || (i.types[0].bitfield.instance == RegC |
8168 | && i.types[0].bitfield.byte)))); | |
40fb9820 | 8169 | if (operand_type_check (i.types[0], imm) |
75e5731b JB |
8170 | || (i.types[0].bitfield.instance == RegC |
8171 | && i.types[0].bitfield.byte)) | |
40fb9820 L |
8172 | source = 1; |
8173 | else | |
8174 | source = 0; | |
cab737b9 L |
8175 | break; |
8176 | case 4: | |
368d64cc L |
8177 | /* When there are 4 operands, the first two must be 8bit |
8178 | immediate operands. The source operand will be the 3rd | |
c0f3af97 L |
8179 | one. |
8180 | ||
8181 | For instructions with VexNDS, if the first operand | |
8182 | an imm8, the source operand is the 2nd one. If the last | |
8183 | operand is imm8, the source operand is the first one. */ | |
9c2799c2 | 8184 | gas_assert ((i.imm_operands == 2 |
7ab9ffdd L |
8185 | && i.types[0].bitfield.imm8 |
8186 | && i.types[1].bitfield.imm8) | |
2426c15f | 8187 | || (i.tm.opcode_modifier.vexvvvv == VEXXDS |
7ab9ffdd L |
8188 | && i.imm_operands == 1 |
8189 | && (i.types[0].bitfield.imm8 | |
cf665fee | 8190 | || i.types[i.operands - 1].bitfield.imm8))); |
9f2670f2 L |
8191 | if (i.imm_operands == 2) |
8192 | source = 2; | |
8193 | else | |
c0f3af97 L |
8194 | { |
8195 | if (i.types[0].bitfield.imm8) | |
8196 | source = 1; | |
8197 | else | |
8198 | source = 0; | |
8199 | } | |
c0f3af97 L |
8200 | break; |
8201 | case 5: | |
cf665fee JB |
8202 | gas_assert (!is_evex_encoding (&i.tm)); |
8203 | gas_assert (i.imm_operands == 1 && vex_3_sources); | |
cab737b9 L |
8204 | break; |
8205 | default: | |
8206 | abort (); | |
8207 | } | |
8208 | ||
c0f3af97 L |
8209 | if (!vex_3_sources) |
8210 | { | |
8211 | dest = source + 1; | |
8212 | ||
2426c15f | 8213 | if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
c0f3af97 | 8214 | { |
43234a1e | 8215 | /* For instructions with VexNDS, the register-only source |
c5d0745b | 8216 | operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask |
dfd69174 | 8217 | register. It is encoded in VEX prefix. */ |
f12dc422 L |
8218 | |
8219 | i386_operand_type op; | |
8220 | unsigned int vvvv; | |
8221 | ||
c2ecccb3 | 8222 | /* Swap two source operands if needed. */ |
255571cd | 8223 | if (i.tm.opcode_modifier.operandconstraint == SWAP_SOURCES) |
f12dc422 L |
8224 | { |
8225 | vvvv = source; | |
8226 | source = dest; | |
8227 | } | |
8228 | else | |
8229 | vvvv = dest; | |
8230 | ||
8231 | op = i.tm.operand_types[vvvv]; | |
c0f3af97 | 8232 | if ((dest + 1) >= i.operands |
bab6aec1 | 8233 | || ((op.bitfield.class != Reg |
dc821c5f | 8234 | || (!op.bitfield.dword && !op.bitfield.qword)) |
3528c362 | 8235 | && op.bitfield.class != RegSIMD |
c0f327b8 | 8236 | && op.bitfield.class != RegMask)) |
c0f3af97 | 8237 | abort (); |
f12dc422 | 8238 | i.vex.register_specifier = i.op[vvvv].regs; |
c0f3af97 L |
8239 | dest++; |
8240 | } | |
8241 | } | |
29b0f896 AM |
8242 | |
8243 | i.rm.mode = 3; | |
dfd69174 JB |
8244 | /* One of the register operands will be encoded in the i.rm.reg |
8245 | field, the other in the combined i.rm.mode and i.rm.regmem | |
29b0f896 AM |
8246 | fields. If no form of this instruction supports a memory |
8247 | destination operand, then we assume the source operand may | |
8248 | sometimes be a memory operand and so we need to store the | |
8249 | destination in the i.rm.reg field. */ | |
dfd69174 | 8250 | if (!i.tm.opcode_modifier.regmem |
40fb9820 | 8251 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) |
29b0f896 AM |
8252 | { |
8253 | i.rm.reg = i.op[dest].regs->reg_num; | |
8254 | i.rm.regmem = i.op[source].regs->reg_num; | |
a5aeccd9 | 8255 | set_rex_vrex (i.op[dest].regs, REX_R, i.tm.opcode_modifier.sse2avx); |
5b7c81bd | 8256 | set_rex_vrex (i.op[source].regs, REX_B, false); |
29b0f896 AM |
8257 | } |
8258 | else | |
8259 | { | |
8260 | i.rm.reg = i.op[source].regs->reg_num; | |
8261 | i.rm.regmem = i.op[dest].regs->reg_num; | |
a5aeccd9 | 8262 | set_rex_vrex (i.op[dest].regs, REX_B, i.tm.opcode_modifier.sse2avx); |
5b7c81bd | 8263 | set_rex_vrex (i.op[source].regs, REX_R, false); |
29b0f896 | 8264 | } |
e0c7f900 | 8265 | if (flag_code != CODE_64BIT && (i.rex & REX_R)) |
c4a530c5 | 8266 | { |
4a5c67ed | 8267 | if (i.types[!i.tm.opcode_modifier.regmem].bitfield.class != RegCR) |
c4a530c5 | 8268 | abort (); |
e0c7f900 | 8269 | i.rex &= ~REX_R; |
c4a530c5 JB |
8270 | add_prefix (LOCK_PREFIX_OPCODE); |
8271 | } | |
29b0f896 AM |
8272 | } |
8273 | else | |
8274 | { /* If it's not 2 reg operands... */ | |
c0f3af97 L |
8275 | unsigned int mem; |
8276 | ||
29b0f896 AM |
8277 | if (i.mem_operands) |
8278 | { | |
8279 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 8280 | unsigned int op; |
4eed87de | 8281 | |
7ab9ffdd | 8282 | for (op = 0; op < i.operands; op++) |
8dc0818e | 8283 | if (i.flags[op] & Operand_Mem) |
7ab9ffdd | 8284 | break; |
7ab9ffdd | 8285 | gas_assert (op < i.operands); |
29b0f896 | 8286 | |
63112cd6 | 8287 | if (i.tm.opcode_modifier.sib) |
6c30d220 | 8288 | { |
260cd341 LC |
8289 | /* The index register of VSIB shouldn't be RegIZ. */ |
8290 | if (i.tm.opcode_modifier.sib != SIBMEM | |
8291 | && i.index_reg->reg_num == RegIZ) | |
6c30d220 L |
8292 | abort (); |
8293 | ||
8294 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
8295 | if (!i.base_reg) | |
8296 | { | |
8297 | i.sib.base = NO_BASE_REGISTER; | |
8298 | i.sib.scale = i.log2_scale_factor; | |
2f2be86b | 8299 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
a775efc8 | 8300 | i.types[op].bitfield.disp32 = 1; |
6c30d220 | 8301 | } |
260cd341 LC |
8302 | |
8303 | /* Since the mandatory SIB always has index register, so | |
8304 | the code logic remains unchanged. The non-mandatory SIB | |
8305 | without index register is allowed and will be handled | |
8306 | later. */ | |
8307 | if (i.index_reg) | |
8308 | { | |
8309 | if (i.index_reg->reg_num == RegIZ) | |
8310 | i.sib.index = NO_INDEX_REGISTER; | |
8311 | else | |
8312 | i.sib.index = i.index_reg->reg_num; | |
5b7c81bd | 8313 | set_rex_vrex (i.index_reg, REX_X, false); |
260cd341 | 8314 | } |
6c30d220 L |
8315 | } |
8316 | ||
5e042380 | 8317 | default_seg = reg_ds; |
29b0f896 AM |
8318 | |
8319 | if (i.base_reg == 0) | |
8320 | { | |
8321 | i.rm.mode = 0; | |
8322 | if (!i.disp_operands) | |
9bb129e8 | 8323 | fake_zero_displacement = 1; |
29b0f896 AM |
8324 | if (i.index_reg == 0) |
8325 | { | |
260cd341 LC |
8326 | /* Both check for VSIB and mandatory non-vector SIB. */ |
8327 | gas_assert (!i.tm.opcode_modifier.sib | |
8328 | || i.tm.opcode_modifier.sib == SIBMEM); | |
29b0f896 | 8329 | /* Operand is just <disp> */ |
2f2be86b | 8330 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
20f0a1fc | 8331 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
8332 | { |
8333 | /* 64bit mode overwrites the 32bit absolute | |
8334 | addressing by RIP relative addressing and | |
8335 | absolute addressing is encoded by one of the | |
8336 | redundant SIB forms. */ | |
8337 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
8338 | i.sib.base = NO_BASE_REGISTER; | |
8339 | i.sib.index = NO_INDEX_REGISTER; | |
a775efc8 | 8340 | i.types[op].bitfield.disp32 = 1; |
20f0a1fc | 8341 | } |
fc225355 L |
8342 | else if ((flag_code == CODE_16BIT) |
8343 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
8344 | { |
8345 | i.rm.regmem = NO_BASE_REGISTER_16; | |
2f2be86b | 8346 | i.types[op].bitfield.disp16 = 1; |
20f0a1fc NC |
8347 | } |
8348 | else | |
8349 | { | |
8350 | i.rm.regmem = NO_BASE_REGISTER; | |
2f2be86b | 8351 | i.types[op].bitfield.disp32 = 1; |
29b0f896 AM |
8352 | } |
8353 | } | |
63112cd6 | 8354 | else if (!i.tm.opcode_modifier.sib) |
29b0f896 | 8355 | { |
6c30d220 | 8356 | /* !i.base_reg && i.index_reg */ |
e968fc9b | 8357 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
8358 | i.sib.index = NO_INDEX_REGISTER; |
8359 | else | |
8360 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
8361 | i.sib.base = NO_BASE_REGISTER; |
8362 | i.sib.scale = i.log2_scale_factor; | |
8363 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
2f2be86b | 8364 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
a775efc8 | 8365 | i.types[op].bitfield.disp32 = 1; |
29b0f896 | 8366 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8367 | i.rex |= REX_X; |
29b0f896 AM |
8368 | } |
8369 | } | |
8370 | /* RIP addressing for 64bit mode. */ | |
e968fc9b | 8371 | else if (i.base_reg->reg_num == RegIP) |
29b0f896 | 8372 | { |
63112cd6 | 8373 | gas_assert (!i.tm.opcode_modifier.sib); |
29b0f896 | 8374 | i.rm.regmem = NO_BASE_REGISTER; |
40fb9820 L |
8375 | i.types[op].bitfield.disp8 = 0; |
8376 | i.types[op].bitfield.disp16 = 0; | |
a775efc8 | 8377 | i.types[op].bitfield.disp32 = 1; |
40fb9820 | 8378 | i.types[op].bitfield.disp64 = 0; |
71903a11 | 8379 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
8380 | if (! i.disp_operands) |
8381 | fake_zero_displacement = 1; | |
29b0f896 | 8382 | } |
dc821c5f | 8383 | else if (i.base_reg->reg_type.bitfield.word) |
29b0f896 | 8384 | { |
63112cd6 | 8385 | gas_assert (!i.tm.opcode_modifier.sib); |
29b0f896 AM |
8386 | switch (i.base_reg->reg_num) |
8387 | { | |
8388 | case 3: /* (%bx) */ | |
8389 | if (i.index_reg == 0) | |
8390 | i.rm.regmem = 7; | |
8391 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
8392 | i.rm.regmem = i.index_reg->reg_num - 6; | |
8393 | break; | |
8394 | case 5: /* (%bp) */ | |
5e042380 | 8395 | default_seg = reg_ss; |
29b0f896 AM |
8396 | if (i.index_reg == 0) |
8397 | { | |
8398 | i.rm.regmem = 6; | |
40fb9820 | 8399 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
8400 | { |
8401 | /* fake (%bp) into 0(%bp) */ | |
41eb8e88 | 8402 | if (i.disp_encoding == disp_encoding_16bit) |
1a02d6b0 L |
8403 | i.types[op].bitfield.disp16 = 1; |
8404 | else | |
8405 | i.types[op].bitfield.disp8 = 1; | |
252b5132 | 8406 | fake_zero_displacement = 1; |
29b0f896 AM |
8407 | } |
8408 | } | |
8409 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
8410 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
8411 | break; | |
8412 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
8413 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
8414 | } | |
41eb8e88 L |
8415 | if (!fake_zero_displacement |
8416 | && !i.disp_operands | |
8417 | && i.disp_encoding) | |
8418 | { | |
8419 | fake_zero_displacement = 1; | |
8420 | if (i.disp_encoding == disp_encoding_8bit) | |
8421 | i.types[op].bitfield.disp8 = 1; | |
8422 | else | |
8423 | i.types[op].bitfield.disp16 = 1; | |
8424 | } | |
29b0f896 AM |
8425 | i.rm.mode = mode_from_disp_size (i.types[op]); |
8426 | } | |
8427 | else /* i.base_reg and 32/64 bit mode */ | |
8428 | { | |
a9aabc23 | 8429 | if (operand_type_check (i.types[op], disp)) |
40fb9820 | 8430 | { |
73053c1f JB |
8431 | i.types[op].bitfield.disp16 = 0; |
8432 | i.types[op].bitfield.disp64 = 0; | |
a775efc8 | 8433 | i.types[op].bitfield.disp32 = 1; |
40fb9820 | 8434 | } |
20f0a1fc | 8435 | |
63112cd6 | 8436 | if (!i.tm.opcode_modifier.sib) |
6c30d220 | 8437 | i.rm.regmem = i.base_reg->reg_num; |
29b0f896 | 8438 | if ((i.base_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8439 | i.rex |= REX_B; |
29b0f896 AM |
8440 | i.sib.base = i.base_reg->reg_num; |
8441 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
8442 | complications. */ | |
848930b2 JB |
8443 | if (!(i.base_reg->reg_flags & RegRex) |
8444 | && (i.base_reg->reg_num == EBP_REG_NUM | |
8445 | || i.base_reg->reg_num == ESP_REG_NUM)) | |
5e042380 | 8446 | default_seg = reg_ss; |
848930b2 | 8447 | if (i.base_reg->reg_num == 5 && i.disp_operands == 0) |
29b0f896 | 8448 | { |
848930b2 | 8449 | fake_zero_displacement = 1; |
1a02d6b0 L |
8450 | if (i.disp_encoding == disp_encoding_32bit) |
8451 | i.types[op].bitfield.disp32 = 1; | |
8452 | else | |
8453 | i.types[op].bitfield.disp8 = 1; | |
29b0f896 AM |
8454 | } |
8455 | i.sib.scale = i.log2_scale_factor; | |
8456 | if (i.index_reg == 0) | |
8457 | { | |
260cd341 LC |
8458 | /* Only check for VSIB. */ |
8459 | gas_assert (i.tm.opcode_modifier.sib != VECSIB128 | |
8460 | && i.tm.opcode_modifier.sib != VECSIB256 | |
8461 | && i.tm.opcode_modifier.sib != VECSIB512); | |
8462 | ||
29b0f896 AM |
8463 | /* <disp>(%esp) becomes two byte modrm with no index |
8464 | register. We've already stored the code for esp | |
8465 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
8466 | Any base register besides %esp will not use the | |
8467 | extra modrm byte. */ | |
8468 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 | 8469 | } |
63112cd6 | 8470 | else if (!i.tm.opcode_modifier.sib) |
29b0f896 | 8471 | { |
e968fc9b | 8472 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
8473 | i.sib.index = NO_INDEX_REGISTER; |
8474 | else | |
8475 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
8476 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
8477 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 8478 | i.rex |= REX_X; |
29b0f896 | 8479 | } |
67a4f2b7 AO |
8480 | |
8481 | if (i.disp_operands | |
8482 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
8483 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
8484 | i.rm.mode = 0; | |
8485 | else | |
a501d77e L |
8486 | { |
8487 | if (!fake_zero_displacement | |
8488 | && !i.disp_operands | |
8489 | && i.disp_encoding) | |
8490 | { | |
8491 | fake_zero_displacement = 1; | |
8492 | if (i.disp_encoding == disp_encoding_8bit) | |
8493 | i.types[op].bitfield.disp8 = 1; | |
8494 | else | |
8495 | i.types[op].bitfield.disp32 = 1; | |
8496 | } | |
8497 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
8498 | } | |
29b0f896 | 8499 | } |
252b5132 | 8500 | |
29b0f896 AM |
8501 | if (fake_zero_displacement) |
8502 | { | |
8503 | /* Fakes a zero displacement assuming that i.types[op] | |
8504 | holds the correct displacement size. */ | |
8505 | expressionS *exp; | |
8506 | ||
9c2799c2 | 8507 | gas_assert (i.op[op].disps == 0); |
29b0f896 AM |
8508 | exp = &disp_expressions[i.disp_operands++]; |
8509 | i.op[op].disps = exp; | |
8510 | exp->X_op = O_constant; | |
8511 | exp->X_add_number = 0; | |
8512 | exp->X_add_symbol = (symbolS *) 0; | |
8513 | exp->X_op_symbol = (symbolS *) 0; | |
8514 | } | |
c0f3af97 L |
8515 | |
8516 | mem = op; | |
29b0f896 | 8517 | } |
c0f3af97 L |
8518 | else |
8519 | mem = ~0; | |
252b5132 | 8520 | |
8c43a48b | 8521 | if (i.tm.opcode_modifier.vexsources == XOP2SOURCES) |
5dd85c99 SP |
8522 | { |
8523 | if (operand_type_check (i.types[0], imm)) | |
8524 | i.vex.register_specifier = NULL; | |
8525 | else | |
8526 | { | |
8527 | /* VEX.vvvv encodes one of the sources when the first | |
8528 | operand is not an immediate. */ | |
1ef99a7b | 8529 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8530 | i.vex.register_specifier = i.op[0].regs; |
8531 | else | |
8532 | i.vex.register_specifier = i.op[1].regs; | |
8533 | } | |
8534 | ||
8535 | /* Destination is a XMM register encoded in the ModRM.reg | |
8536 | and VEX.R bit. */ | |
8537 | i.rm.reg = i.op[2].regs->reg_num; | |
8538 | if ((i.op[2].regs->reg_flags & RegRex) != 0) | |
8539 | i.rex |= REX_R; | |
8540 | ||
8541 | /* ModRM.rm and VEX.B encodes the other source. */ | |
8542 | if (!i.mem_operands) | |
8543 | { | |
8544 | i.rm.mode = 3; | |
8545 | ||
1ef99a7b | 8546 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8547 | i.rm.regmem = i.op[1].regs->reg_num; |
8548 | else | |
8549 | i.rm.regmem = i.op[0].regs->reg_num; | |
8550 | ||
8551 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8552 | i.rex |= REX_B; | |
8553 | } | |
8554 | } | |
2426c15f | 8555 | else if (i.tm.opcode_modifier.vexvvvv == VEXLWP) |
f88c9eb0 SP |
8556 | { |
8557 | i.vex.register_specifier = i.op[2].regs; | |
8558 | if (!i.mem_operands) | |
8559 | { | |
8560 | i.rm.mode = 3; | |
8561 | i.rm.regmem = i.op[1].regs->reg_num; | |
8562 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8563 | i.rex |= REX_B; | |
8564 | } | |
8565 | } | |
29b0f896 AM |
8566 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
8567 | (if any) based on i.tm.extension_opcode. Again, we must be | |
8568 | careful to make sure that segment/control/debug/test/MMX | |
8569 | registers are coded into the i.rm.reg field. */ | |
f88c9eb0 | 8570 | else if (i.reg_operands) |
29b0f896 | 8571 | { |
99018f42 | 8572 | unsigned int op; |
7ab9ffdd L |
8573 | unsigned int vex_reg = ~0; |
8574 | ||
8575 | for (op = 0; op < i.operands; op++) | |
921eafea L |
8576 | if (i.types[op].bitfield.class == Reg |
8577 | || i.types[op].bitfield.class == RegBND | |
8578 | || i.types[op].bitfield.class == RegMask | |
8579 | || i.types[op].bitfield.class == SReg | |
8580 | || i.types[op].bitfield.class == RegCR | |
8581 | || i.types[op].bitfield.class == RegDR | |
8582 | || i.types[op].bitfield.class == RegTR | |
8583 | || i.types[op].bitfield.class == RegSIMD | |
8584 | || i.types[op].bitfield.class == RegMMX) | |
8585 | break; | |
c0209578 | 8586 | |
7ab9ffdd L |
8587 | if (vex_3_sources) |
8588 | op = dest; | |
2426c15f | 8589 | else if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd L |
8590 | { |
8591 | /* For instructions with VexNDS, the register-only | |
8592 | source operand is encoded in VEX prefix. */ | |
8593 | gas_assert (mem != (unsigned int) ~0); | |
c0f3af97 | 8594 | |
a93e3234 | 8595 | if (op > mem || i.tm.cpu_flags.bitfield.cpucmpccxadd) |
c0f3af97 | 8596 | { |
7ab9ffdd L |
8597 | vex_reg = op++; |
8598 | gas_assert (op < i.operands); | |
c0f3af97 L |
8599 | } |
8600 | else | |
c0f3af97 | 8601 | { |
f12dc422 L |
8602 | /* Check register-only source operand when two source |
8603 | operands are swapped. */ | |
8604 | if (!i.tm.operand_types[op].bitfield.baseindex | |
8605 | && i.tm.operand_types[op + 1].bitfield.baseindex) | |
8606 | { | |
8607 | vex_reg = op; | |
8608 | op += 2; | |
8609 | gas_assert (mem == (vex_reg + 1) | |
8610 | && op < i.operands); | |
8611 | } | |
8612 | else | |
8613 | { | |
8614 | vex_reg = op + 1; | |
8615 | gas_assert (vex_reg < i.operands); | |
8616 | } | |
c0f3af97 | 8617 | } |
7ab9ffdd | 8618 | } |
2426c15f | 8619 | else if (i.tm.opcode_modifier.vexvvvv == VEXNDD) |
7ab9ffdd | 8620 | { |
f12dc422 | 8621 | /* For instructions with VexNDD, the register destination |
7ab9ffdd | 8622 | is encoded in VEX prefix. */ |
f12dc422 L |
8623 | if (i.mem_operands == 0) |
8624 | { | |
8625 | /* There is no memory operand. */ | |
8626 | gas_assert ((op + 2) == i.operands); | |
8627 | vex_reg = op + 1; | |
8628 | } | |
8629 | else | |
8d63c93e | 8630 | { |
ed438a93 JB |
8631 | /* There are only 2 non-immediate operands. */ |
8632 | gas_assert (op < i.imm_operands + 2 | |
8633 | && i.operands == i.imm_operands + 2); | |
8634 | vex_reg = i.imm_operands + 1; | |
f12dc422 | 8635 | } |
7ab9ffdd L |
8636 | } |
8637 | else | |
8638 | gas_assert (op < i.operands); | |
99018f42 | 8639 | |
7ab9ffdd L |
8640 | if (vex_reg != (unsigned int) ~0) |
8641 | { | |
f12dc422 | 8642 | i386_operand_type *type = &i.tm.operand_types[vex_reg]; |
7ab9ffdd | 8643 | |
bab6aec1 | 8644 | if ((type->bitfield.class != Reg |
dc821c5f | 8645 | || (!type->bitfield.dword && !type->bitfield.qword)) |
3528c362 | 8646 | && type->bitfield.class != RegSIMD |
c0f327b8 | 8647 | && type->bitfield.class != RegMask) |
7ab9ffdd | 8648 | abort (); |
f88c9eb0 | 8649 | |
7ab9ffdd L |
8650 | i.vex.register_specifier = i.op[vex_reg].regs; |
8651 | } | |
8652 | ||
1b9f0c97 L |
8653 | /* Don't set OP operand twice. */ |
8654 | if (vex_reg != op) | |
7ab9ffdd | 8655 | { |
1b9f0c97 L |
8656 | /* If there is an extension opcode to put here, the |
8657 | register number must be put into the regmem field. */ | |
8658 | if (i.tm.extension_opcode != None) | |
8659 | { | |
8660 | i.rm.regmem = i.op[op].regs->reg_num; | |
a5aeccd9 JB |
8661 | set_rex_vrex (i.op[op].regs, REX_B, |
8662 | i.tm.opcode_modifier.sse2avx); | |
1b9f0c97 L |
8663 | } |
8664 | else | |
8665 | { | |
8666 | i.rm.reg = i.op[op].regs->reg_num; | |
a5aeccd9 JB |
8667 | set_rex_vrex (i.op[op].regs, REX_R, |
8668 | i.tm.opcode_modifier.sse2avx); | |
1b9f0c97 | 8669 | } |
7ab9ffdd | 8670 | } |
252b5132 | 8671 | |
29b0f896 AM |
8672 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
8673 | must set it to 3 to indicate this is a register operand | |
8674 | in the regmem field. */ | |
8675 | if (!i.mem_operands) | |
8676 | i.rm.mode = 3; | |
8677 | } | |
252b5132 | 8678 | |
29b0f896 | 8679 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
c1e679ec | 8680 | if (i.tm.extension_opcode != None) |
29b0f896 AM |
8681 | i.rm.reg = i.tm.extension_opcode; |
8682 | } | |
8683 | return default_seg; | |
8684 | } | |
252b5132 | 8685 | |
48ef937e JB |
8686 | static INLINE void |
8687 | frag_opcode_byte (unsigned char byte) | |
8688 | { | |
8689 | if (now_seg != absolute_section) | |
8690 | FRAG_APPEND_1_CHAR (byte); | |
8691 | else | |
8692 | ++abs_section_offset; | |
8693 | } | |
8694 | ||
376cd056 JB |
8695 | static unsigned int |
8696 | flip_code16 (unsigned int code16) | |
8697 | { | |
8698 | gas_assert (i.tm.operands == 1); | |
8699 | ||
8700 | return !(i.prefix[REX_PREFIX] & REX_W) | |
8701 | && (code16 ? i.tm.operand_types[0].bitfield.disp32 | |
376cd056 JB |
8702 | : i.tm.operand_types[0].bitfield.disp16) |
8703 | ? CODE16 : 0; | |
8704 | } | |
8705 | ||
29b0f896 | 8706 | static void |
e3bb37b5 | 8707 | output_branch (void) |
29b0f896 AM |
8708 | { |
8709 | char *p; | |
f8a5c266 | 8710 | int size; |
29b0f896 AM |
8711 | int code16; |
8712 | int prefix; | |
8713 | relax_substateT subtype; | |
8714 | symbolS *sym; | |
8715 | offsetT off; | |
8716 | ||
48ef937e JB |
8717 | if (now_seg == absolute_section) |
8718 | { | |
8719 | as_bad (_("relaxable branches not supported in absolute section")); | |
8720 | return; | |
8721 | } | |
8722 | ||
f8a5c266 | 8723 | code16 = flag_code == CODE_16BIT ? CODE16 : 0; |
1a42a9fe | 8724 | size = i.disp_encoding > disp_encoding_8bit ? BIG : SMALL; |
29b0f896 AM |
8725 | |
8726 | prefix = 0; | |
8727 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 8728 | { |
29b0f896 AM |
8729 | prefix = 1; |
8730 | i.prefixes -= 1; | |
376cd056 | 8731 | code16 ^= flip_code16(code16); |
252b5132 | 8732 | } |
29b0f896 AM |
8733 | /* Pentium4 branch hints. */ |
8734 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8735 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 8736 | { |
29b0f896 AM |
8737 | prefix++; |
8738 | i.prefixes--; | |
8739 | } | |
8740 | if (i.prefix[REX_PREFIX] != 0) | |
8741 | { | |
8742 | prefix++; | |
8743 | i.prefixes--; | |
2f66722d AM |
8744 | } |
8745 | ||
7e8b059b L |
8746 | /* BND prefixed jump. */ |
8747 | if (i.prefix[BND_PREFIX] != 0) | |
8748 | { | |
6cb0a70e JB |
8749 | prefix++; |
8750 | i.prefixes--; | |
7e8b059b L |
8751 | } |
8752 | ||
f2810fe0 JB |
8753 | if (i.prefixes != 0) |
8754 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
29b0f896 AM |
8755 | |
8756 | /* It's always a symbol; End frag & setup for relax. | |
8757 | Make sure there is enough room in this frag for the largest | |
8758 | instruction we may generate in md_convert_frag. This is 2 | |
8759 | bytes for the opcode and room for the prefix and largest | |
8760 | displacement. */ | |
8761 | frag_grow (prefix + 2 + 4); | |
8762 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
8763 | p = frag_more (prefix + 1); | |
8764 | if (i.prefix[DATA_PREFIX] != 0) | |
8765 | *p++ = DATA_PREFIX_OPCODE; | |
8766 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
8767 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
8768 | *p++ = i.prefix[SEG_PREFIX]; | |
6cb0a70e JB |
8769 | if (i.prefix[BND_PREFIX] != 0) |
8770 | *p++ = BND_PREFIX_OPCODE; | |
29b0f896 AM |
8771 | if (i.prefix[REX_PREFIX] != 0) |
8772 | *p++ = i.prefix[REX_PREFIX]; | |
8773 | *p = i.tm.base_opcode; | |
8774 | ||
8775 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
f8a5c266 | 8776 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size); |
40fb9820 | 8777 | else if (cpu_arch_flags.bitfield.cpui386) |
f8a5c266 | 8778 | subtype = ENCODE_RELAX_STATE (COND_JUMP, size); |
29b0f896 | 8779 | else |
f8a5c266 | 8780 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, size); |
29b0f896 | 8781 | subtype |= code16; |
3e73aa7c | 8782 | |
29b0f896 AM |
8783 | sym = i.op[0].disps->X_add_symbol; |
8784 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 8785 | |
29b0f896 AM |
8786 | if (i.op[0].disps->X_op != O_constant |
8787 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 8788 | { |
29b0f896 AM |
8789 | /* Handle complex expressions. */ |
8790 | sym = make_expr_symbol (i.op[0].disps); | |
8791 | off = 0; | |
8792 | } | |
3e73aa7c | 8793 | |
1ef3994a JB |
8794 | frag_now->tc_frag_data.code64 = flag_code == CODE_64BIT; |
8795 | ||
29b0f896 AM |
8796 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
8797 | Pass reloc in fr_var. */ | |
d258b828 | 8798 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); |
29b0f896 | 8799 | } |
3e73aa7c | 8800 | |
bd7ab16b L |
8801 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8802 | /* Return TRUE iff PLT32 relocation should be used for branching to | |
8803 | symbol S. */ | |
8804 | ||
5b7c81bd | 8805 | static bool |
bd7ab16b L |
8806 | need_plt32_p (symbolS *s) |
8807 | { | |
8808 | /* PLT32 relocation is ELF only. */ | |
8809 | if (!IS_ELF) | |
5b7c81bd | 8810 | return false; |
bd7ab16b | 8811 | |
a5def729 RO |
8812 | #ifdef TE_SOLARIS |
8813 | /* Don't emit PLT32 relocation on Solaris: neither native linker nor | |
8814 | krtld support it. */ | |
5b7c81bd | 8815 | return false; |
a5def729 RO |
8816 | #endif |
8817 | ||
bd7ab16b L |
8818 | /* Since there is no need to prepare for PLT branch on x86-64, we |
8819 | can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can | |
8820 | be used as a marker for 32-bit PC-relative branches. */ | |
8821 | if (!object_64bit) | |
5b7c81bd | 8822 | return false; |
bd7ab16b | 8823 | |
44365e88 | 8824 | if (s == NULL) |
5b7c81bd | 8825 | return false; |
44365e88 | 8826 | |
bd7ab16b L |
8827 | /* Weak or undefined symbol need PLT32 relocation. */ |
8828 | if (S_IS_WEAK (s) || !S_IS_DEFINED (s)) | |
5b7c81bd | 8829 | return true; |
bd7ab16b L |
8830 | |
8831 | /* Non-global symbol doesn't need PLT32 relocation. */ | |
8832 | if (! S_IS_EXTERNAL (s)) | |
5b7c81bd | 8833 | return false; |
bd7ab16b L |
8834 | |
8835 | /* Other global symbols need PLT32 relocation. NB: Symbol with | |
8836 | non-default visibilities are treated as normal global symbol | |
8837 | so that PLT32 relocation can be used as a marker for 32-bit | |
8838 | PC-relative branches. It is useful for linker relaxation. */ | |
5b7c81bd | 8839 | return true; |
bd7ab16b L |
8840 | } |
8841 | #endif | |
8842 | ||
29b0f896 | 8843 | static void |
e3bb37b5 | 8844 | output_jump (void) |
29b0f896 AM |
8845 | { |
8846 | char *p; | |
8847 | int size; | |
3e02c1cc | 8848 | fixS *fixP; |
bd7ab16b | 8849 | bfd_reloc_code_real_type jump_reloc = i.reloc[0]; |
29b0f896 | 8850 | |
0cfa3eb3 | 8851 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) |
29b0f896 AM |
8852 | { |
8853 | /* This is a loop or jecxz type instruction. */ | |
8854 | size = 1; | |
8855 | if (i.prefix[ADDR_PREFIX] != 0) | |
8856 | { | |
48ef937e | 8857 | frag_opcode_byte (ADDR_PREFIX_OPCODE); |
29b0f896 AM |
8858 | i.prefixes -= 1; |
8859 | } | |
8860 | /* Pentium4 branch hints. */ | |
8861 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8862 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
8863 | { | |
48ef937e | 8864 | frag_opcode_byte (i.prefix[SEG_PREFIX]); |
29b0f896 | 8865 | i.prefixes--; |
3e73aa7c JH |
8866 | } |
8867 | } | |
29b0f896 AM |
8868 | else |
8869 | { | |
8870 | int code16; | |
3e73aa7c | 8871 | |
29b0f896 AM |
8872 | code16 = 0; |
8873 | if (flag_code == CODE_16BIT) | |
8874 | code16 = CODE16; | |
3e73aa7c | 8875 | |
29b0f896 AM |
8876 | if (i.prefix[DATA_PREFIX] != 0) |
8877 | { | |
48ef937e | 8878 | frag_opcode_byte (DATA_PREFIX_OPCODE); |
29b0f896 | 8879 | i.prefixes -= 1; |
376cd056 | 8880 | code16 ^= flip_code16(code16); |
29b0f896 | 8881 | } |
252b5132 | 8882 | |
29b0f896 AM |
8883 | size = 4; |
8884 | if (code16) | |
8885 | size = 2; | |
8886 | } | |
9fcc94b6 | 8887 | |
6cb0a70e JB |
8888 | /* BND prefixed jump. */ |
8889 | if (i.prefix[BND_PREFIX] != 0) | |
29b0f896 | 8890 | { |
48ef937e | 8891 | frag_opcode_byte (i.prefix[BND_PREFIX]); |
29b0f896 AM |
8892 | i.prefixes -= 1; |
8893 | } | |
252b5132 | 8894 | |
6cb0a70e | 8895 | if (i.prefix[REX_PREFIX] != 0) |
7e8b059b | 8896 | { |
48ef937e | 8897 | frag_opcode_byte (i.prefix[REX_PREFIX]); |
7e8b059b L |
8898 | i.prefixes -= 1; |
8899 | } | |
8900 | ||
f2810fe0 JB |
8901 | if (i.prefixes != 0) |
8902 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
e0890092 | 8903 | |
48ef937e JB |
8904 | if (now_seg == absolute_section) |
8905 | { | |
9a182d04 | 8906 | abs_section_offset += i.opcode_length + size; |
48ef937e JB |
8907 | return; |
8908 | } | |
8909 | ||
9a182d04 JB |
8910 | p = frag_more (i.opcode_length + size); |
8911 | switch (i.opcode_length) | |
42164a71 L |
8912 | { |
8913 | case 2: | |
8914 | *p++ = i.tm.base_opcode >> 8; | |
1a0670f3 | 8915 | /* Fall through. */ |
42164a71 L |
8916 | case 1: |
8917 | *p++ = i.tm.base_opcode; | |
8918 | break; | |
8919 | default: | |
8920 | abort (); | |
8921 | } | |
e0890092 | 8922 | |
bd7ab16b | 8923 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1ef3994a JB |
8924 | if (flag_code == CODE_64BIT && size == 4 |
8925 | && jump_reloc == NO_RELOC && i.op[0].disps->X_add_number == 0 | |
bd7ab16b L |
8926 | && need_plt32_p (i.op[0].disps->X_add_symbol)) |
8927 | jump_reloc = BFD_RELOC_X86_64_PLT32; | |
8928 | #endif | |
8929 | ||
8930 | jump_reloc = reloc (size, 1, 1, jump_reloc); | |
8931 | ||
3e02c1cc | 8932 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
bd7ab16b | 8933 | i.op[0].disps, 1, jump_reloc); |
3e02c1cc | 8934 | |
eb19308f JB |
8935 | /* All jumps handled here are signed, but don't unconditionally use a |
8936 | signed limit check for 32 and 16 bit jumps as we want to allow wrap | |
8937 | around at 4G (outside of 64-bit mode) and 64k (except for XBEGIN) | |
8938 | respectively. */ | |
8939 | switch (size) | |
8940 | { | |
8941 | case 1: | |
8942 | fixP->fx_signed = 1; | |
8943 | break; | |
8944 | ||
8945 | case 2: | |
8946 | if (i.tm.base_opcode == 0xc7f8) | |
8947 | fixP->fx_signed = 1; | |
8948 | break; | |
8949 | ||
8950 | case 4: | |
8951 | if (flag_code == CODE_64BIT) | |
8952 | fixP->fx_signed = 1; | |
8953 | break; | |
8954 | } | |
29b0f896 | 8955 | } |
e0890092 | 8956 | |
29b0f896 | 8957 | static void |
e3bb37b5 | 8958 | output_interseg_jump (void) |
29b0f896 AM |
8959 | { |
8960 | char *p; | |
8961 | int size; | |
8962 | int prefix; | |
8963 | int code16; | |
252b5132 | 8964 | |
29b0f896 AM |
8965 | code16 = 0; |
8966 | if (flag_code == CODE_16BIT) | |
8967 | code16 = CODE16; | |
a217f122 | 8968 | |
29b0f896 AM |
8969 | prefix = 0; |
8970 | if (i.prefix[DATA_PREFIX] != 0) | |
8971 | { | |
8972 | prefix = 1; | |
8973 | i.prefixes -= 1; | |
8974 | code16 ^= CODE16; | |
8975 | } | |
6cb0a70e JB |
8976 | |
8977 | gas_assert (!i.prefix[REX_PREFIX]); | |
252b5132 | 8978 | |
29b0f896 AM |
8979 | size = 4; |
8980 | if (code16) | |
8981 | size = 2; | |
252b5132 | 8982 | |
f2810fe0 JB |
8983 | if (i.prefixes != 0) |
8984 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
252b5132 | 8985 | |
48ef937e JB |
8986 | if (now_seg == absolute_section) |
8987 | { | |
8988 | abs_section_offset += prefix + 1 + 2 + size; | |
8989 | return; | |
8990 | } | |
8991 | ||
29b0f896 AM |
8992 | /* 1 opcode; 2 segment; offset */ |
8993 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 8994 | |
29b0f896 AM |
8995 | if (i.prefix[DATA_PREFIX] != 0) |
8996 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 8997 | |
29b0f896 AM |
8998 | if (i.prefix[REX_PREFIX] != 0) |
8999 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 9000 | |
29b0f896 AM |
9001 | *p++ = i.tm.base_opcode; |
9002 | if (i.op[1].imms->X_op == O_constant) | |
9003 | { | |
9004 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 9005 | |
29b0f896 AM |
9006 | if (size == 2 |
9007 | && !fits_in_unsigned_word (n) | |
9008 | && !fits_in_signed_word (n)) | |
9009 | { | |
9010 | as_bad (_("16-bit jump out of range")); | |
9011 | return; | |
9012 | } | |
9013 | md_number_to_chars (p, n, size); | |
9014 | } | |
9015 | else | |
9016 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
d258b828 | 9017 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); |
6d96a594 C |
9018 | |
9019 | p += size; | |
9020 | if (i.op[0].imms->X_op == O_constant) | |
9021 | md_number_to_chars (p, (valueT) i.op[0].imms->X_add_number, 2); | |
9022 | else | |
9023 | fix_new_exp (frag_now, p - frag_now->fr_literal, 2, | |
9024 | i.op[0].imms, 0, reloc (2, 0, 0, i.reloc[0])); | |
29b0f896 | 9025 | } |
a217f122 | 9026 | |
b4a3a7b4 L |
9027 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
9028 | void | |
9029 | x86_cleanup (void) | |
9030 | { | |
9031 | char *p; | |
9032 | asection *seg = now_seg; | |
9033 | subsegT subseg = now_subseg; | |
9034 | asection *sec; | |
9035 | unsigned int alignment, align_size_1; | |
9036 | unsigned int isa_1_descsz, feature_2_descsz, descsz; | |
9037 | unsigned int isa_1_descsz_raw, feature_2_descsz_raw; | |
9038 | unsigned int padding; | |
9039 | ||
1273b2f8 | 9040 | if (!IS_ELF || !x86_used_note) |
b4a3a7b4 L |
9041 | return; |
9042 | ||
b4a3a7b4 L |
9043 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X86; |
9044 | ||
9045 | /* The .note.gnu.property section layout: | |
9046 | ||
9047 | Field Length Contents | |
9048 | ---- ---- ---- | |
9049 | n_namsz 4 4 | |
9050 | n_descsz 4 The note descriptor size | |
9051 | n_type 4 NT_GNU_PROPERTY_TYPE_0 | |
9052 | n_name 4 "GNU" | |
9053 | n_desc n_descsz The program property array | |
9054 | .... .... .... | |
9055 | */ | |
9056 | ||
9057 | /* Create the .note.gnu.property section. */ | |
9058 | sec = subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME, 0); | |
fd361982 | 9059 | bfd_set_section_flags (sec, |
b4a3a7b4 L |
9060 | (SEC_ALLOC |
9061 | | SEC_LOAD | |
9062 | | SEC_DATA | |
9063 | | SEC_HAS_CONTENTS | |
9064 | | SEC_READONLY)); | |
9065 | ||
9066 | if (get_elf_backend_data (stdoutput)->s->elfclass == ELFCLASS64) | |
9067 | { | |
9068 | align_size_1 = 7; | |
9069 | alignment = 3; | |
9070 | } | |
9071 | else | |
9072 | { | |
9073 | align_size_1 = 3; | |
9074 | alignment = 2; | |
9075 | } | |
9076 | ||
fd361982 | 9077 | bfd_set_section_alignment (sec, alignment); |
b4a3a7b4 L |
9078 | elf_section_type (sec) = SHT_NOTE; |
9079 | ||
1273b2f8 L |
9080 | /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size |
9081 | + 4-byte data */ | |
9082 | isa_1_descsz_raw = 4 + 4 + 4; | |
9083 | /* Align GNU_PROPERTY_X86_ISA_1_USED. */ | |
9084 | isa_1_descsz = (isa_1_descsz_raw + align_size_1) & ~align_size_1; | |
b4a3a7b4 L |
9085 | |
9086 | feature_2_descsz_raw = isa_1_descsz; | |
9087 | /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size | |
1273b2f8 | 9088 | + 4-byte data */ |
b4a3a7b4 L |
9089 | feature_2_descsz_raw += 4 + 4 + 4; |
9090 | /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
9091 | feature_2_descsz = ((feature_2_descsz_raw + align_size_1) | |
9092 | & ~align_size_1); | |
9093 | ||
9094 | descsz = feature_2_descsz; | |
9095 | /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */ | |
9096 | p = frag_more (4 + 4 + 4 + 4 + descsz); | |
9097 | ||
9098 | /* Write n_namsz. */ | |
9099 | md_number_to_chars (p, (valueT) 4, 4); | |
9100 | ||
9101 | /* Write n_descsz. */ | |
9102 | md_number_to_chars (p + 4, (valueT) descsz, 4); | |
9103 | ||
9104 | /* Write n_type. */ | |
9105 | md_number_to_chars (p + 4 * 2, (valueT) NT_GNU_PROPERTY_TYPE_0, 4); | |
9106 | ||
9107 | /* Write n_name. */ | |
9108 | memcpy (p + 4 * 3, "GNU", 4); | |
9109 | ||
1273b2f8 L |
9110 | /* Write 4-byte type. */ |
9111 | md_number_to_chars (p + 4 * 4, | |
9112 | (valueT) GNU_PROPERTY_X86_ISA_1_USED, 4); | |
b4a3a7b4 | 9113 | |
1273b2f8 L |
9114 | /* Write 4-byte data size. */ |
9115 | md_number_to_chars (p + 4 * 5, (valueT) 4, 4); | |
b4a3a7b4 | 9116 | |
1273b2f8 L |
9117 | /* Write 4-byte data. */ |
9118 | md_number_to_chars (p + 4 * 6, (valueT) x86_isa_1_used, 4); | |
b4a3a7b4 | 9119 | |
1273b2f8 L |
9120 | /* Zero out paddings. */ |
9121 | padding = isa_1_descsz - isa_1_descsz_raw; | |
9122 | if (padding) | |
9123 | memset (p + 4 * 7, 0, padding); | |
b4a3a7b4 L |
9124 | |
9125 | /* Write 4-byte type. */ | |
9126 | md_number_to_chars (p + isa_1_descsz + 4 * 4, | |
9127 | (valueT) GNU_PROPERTY_X86_FEATURE_2_USED, 4); | |
9128 | ||
9129 | /* Write 4-byte data size. */ | |
9130 | md_number_to_chars (p + isa_1_descsz + 4 * 5, (valueT) 4, 4); | |
9131 | ||
9132 | /* Write 4-byte data. */ | |
9133 | md_number_to_chars (p + isa_1_descsz + 4 * 6, | |
9134 | (valueT) x86_feature_2_used, 4); | |
9135 | ||
9136 | /* Zero out paddings. */ | |
9137 | padding = feature_2_descsz - feature_2_descsz_raw; | |
9138 | if (padding) | |
9139 | memset (p + isa_1_descsz + 4 * 7, 0, padding); | |
9140 | ||
9141 | /* We probably can't restore the current segment, for there likely | |
9142 | isn't one yet... */ | |
9143 | if (seg && subseg) | |
9144 | subseg_set (seg, subseg); | |
9145 | } | |
b52c4ee4 IB |
9146 | |
9147 | bool | |
9148 | x86_support_sframe_p (void) | |
9149 | { | |
9150 | /* At this time, SFrame unwind is supported for AMD64 ABI only. */ | |
9151 | return (x86_elf_abi == X86_64_ABI); | |
9152 | } | |
9153 | ||
9154 | bool | |
9155 | x86_sframe_ra_tracking_p (void) | |
9156 | { | |
9157 | /* In AMD64, return address is always stored on the stack at a fixed offset | |
9158 | from the CFA (provided via x86_sframe_cfa_ra_offset ()). | |
9159 | Do not track explicitly via an SFrame Frame Row Entry. */ | |
9160 | return false; | |
9161 | } | |
9162 | ||
9163 | offsetT | |
9164 | x86_sframe_cfa_ra_offset (void) | |
9165 | { | |
9166 | gas_assert (x86_elf_abi == X86_64_ABI); | |
9167 | return (offsetT) -8; | |
9168 | } | |
9169 | ||
9170 | unsigned char | |
9171 | x86_sframe_get_abi_arch (void) | |
9172 | { | |
9173 | unsigned char sframe_abi_arch = 0; | |
9174 | ||
9175 | if (x86_support_sframe_p ()) | |
9176 | { | |
9177 | gas_assert (!target_big_endian); | |
9178 | sframe_abi_arch = SFRAME_ABI_AMD64_ENDIAN_LITTLE; | |
9179 | } | |
9180 | ||
9181 | return sframe_abi_arch; | |
9182 | } | |
9183 | ||
b4a3a7b4 L |
9184 | #endif |
9185 | ||
9c33702b JB |
9186 | static unsigned int |
9187 | encoding_length (const fragS *start_frag, offsetT start_off, | |
9188 | const char *frag_now_ptr) | |
9189 | { | |
9190 | unsigned int len = 0; | |
9191 | ||
9192 | if (start_frag != frag_now) | |
9193 | { | |
9194 | const fragS *fr = start_frag; | |
9195 | ||
9196 | do { | |
9197 | len += fr->fr_fix; | |
9198 | fr = fr->fr_next; | |
9199 | } while (fr && fr != frag_now); | |
9200 | } | |
9201 | ||
9202 | return len - start_off + (frag_now_ptr - frag_now->fr_literal); | |
9203 | } | |
9204 | ||
e379e5f3 | 9205 | /* Return 1 for test, and, cmp, add, sub, inc and dec which may |
79d72f45 HL |
9206 | be macro-fused with conditional jumps. |
9207 | NB: If TEST/AND/CMP/ADD/SUB/INC/DEC is of RIP relative address, | |
9208 | or is one of the following format: | |
9209 | ||
9210 | cmp m, imm | |
9211 | add m, imm | |
9212 | sub m, imm | |
9213 | test m, imm | |
9214 | and m, imm | |
9215 | inc m | |
9216 | dec m | |
9217 | ||
9218 | it is unfusible. */ | |
e379e5f3 L |
9219 | |
9220 | static int | |
79d72f45 | 9221 | maybe_fused_with_jcc_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
9222 | { |
9223 | /* No RIP address. */ | |
9224 | if (i.base_reg && i.base_reg->reg_num == RegIP) | |
9225 | return 0; | |
9226 | ||
389d00a5 JB |
9227 | /* No opcodes outside of base encoding space. */ |
9228 | if (i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
e379e5f3 L |
9229 | return 0; |
9230 | ||
79d72f45 HL |
9231 | /* add, sub without add/sub m, imm. */ |
9232 | if (i.tm.base_opcode <= 5 | |
e379e5f3 L |
9233 | || (i.tm.base_opcode >= 0x28 && i.tm.base_opcode <= 0x2d) |
9234 | || ((i.tm.base_opcode | 3) == 0x83 | |
79d72f45 | 9235 | && (i.tm.extension_opcode == 0x5 |
e379e5f3 | 9236 | || i.tm.extension_opcode == 0x0))) |
79d72f45 HL |
9237 | { |
9238 | *mf_cmp_p = mf_cmp_alu_cmp; | |
9239 | return !(i.mem_operands && i.imm_operands); | |
9240 | } | |
e379e5f3 | 9241 | |
79d72f45 HL |
9242 | /* and without and m, imm. */ |
9243 | if ((i.tm.base_opcode >= 0x20 && i.tm.base_opcode <= 0x25) | |
9244 | || ((i.tm.base_opcode | 3) == 0x83 | |
9245 | && i.tm.extension_opcode == 0x4)) | |
9246 | { | |
9247 | *mf_cmp_p = mf_cmp_test_and; | |
9248 | return !(i.mem_operands && i.imm_operands); | |
9249 | } | |
9250 | ||
9251 | /* test without test m imm. */ | |
e379e5f3 L |
9252 | if ((i.tm.base_opcode | 1) == 0x85 |
9253 | || (i.tm.base_opcode | 1) == 0xa9 | |
9254 | || ((i.tm.base_opcode | 1) == 0xf7 | |
79d72f45 HL |
9255 | && i.tm.extension_opcode == 0)) |
9256 | { | |
9257 | *mf_cmp_p = mf_cmp_test_and; | |
9258 | return !(i.mem_operands && i.imm_operands); | |
9259 | } | |
9260 | ||
9261 | /* cmp without cmp m, imm. */ | |
9262 | if ((i.tm.base_opcode >= 0x38 && i.tm.base_opcode <= 0x3d) | |
e379e5f3 L |
9263 | || ((i.tm.base_opcode | 3) == 0x83 |
9264 | && (i.tm.extension_opcode == 0x7))) | |
79d72f45 HL |
9265 | { |
9266 | *mf_cmp_p = mf_cmp_alu_cmp; | |
9267 | return !(i.mem_operands && i.imm_operands); | |
9268 | } | |
e379e5f3 | 9269 | |
79d72f45 | 9270 | /* inc, dec without inc/dec m. */ |
e379e5f3 L |
9271 | if ((i.tm.cpu_flags.bitfield.cpuno64 |
9272 | && (i.tm.base_opcode | 0xf) == 0x4f) | |
9273 | || ((i.tm.base_opcode | 1) == 0xff | |
9274 | && i.tm.extension_opcode <= 0x1)) | |
79d72f45 HL |
9275 | { |
9276 | *mf_cmp_p = mf_cmp_incdec; | |
9277 | return !i.mem_operands; | |
9278 | } | |
e379e5f3 L |
9279 | |
9280 | return 0; | |
9281 | } | |
9282 | ||
9283 | /* Return 1 if a FUSED_JCC_PADDING frag should be generated. */ | |
9284 | ||
9285 | static int | |
79d72f45 | 9286 | add_fused_jcc_padding_frag_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
9287 | { |
9288 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
9289 | if (!align_branch_power | |
9290 | || now_seg == absolute_section | |
9291 | || !cpu_arch_flags.bitfield.cpui386 | |
9292 | || !(align_branch & align_branch_fused_bit)) | |
9293 | return 0; | |
9294 | ||
79d72f45 | 9295 | if (maybe_fused_with_jcc_p (mf_cmp_p)) |
e379e5f3 L |
9296 | { |
9297 | if (last_insn.kind == last_insn_other | |
9298 | || last_insn.seg != now_seg) | |
9299 | return 1; | |
9300 | if (flag_debug) | |
9301 | as_warn_where (last_insn.file, last_insn.line, | |
9302 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9303 | last_insn.name, i.tm.name); | |
9304 | } | |
9305 | ||
9306 | return 0; | |
9307 | } | |
9308 | ||
9309 | /* Return 1 if a BRANCH_PREFIX frag should be generated. */ | |
9310 | ||
9311 | static int | |
9312 | add_branch_prefix_frag_p (void) | |
9313 | { | |
9314 | /* NB: Don't work with COND_JUMP86 without i386. Don't add prefix | |
9315 | to PadLock instructions since they include prefixes in opcode. */ | |
9316 | if (!align_branch_power | |
9317 | || !align_branch_prefix_size | |
9318 | || now_seg == absolute_section | |
9319 | || i.tm.cpu_flags.bitfield.cpupadlock | |
9320 | || !cpu_arch_flags.bitfield.cpui386) | |
9321 | return 0; | |
9322 | ||
9323 | /* Don't add prefix if it is a prefix or there is no operand in case | |
9324 | that segment prefix is special. */ | |
9325 | if (!i.operands || i.tm.opcode_modifier.isprefix) | |
9326 | return 0; | |
9327 | ||
9328 | if (last_insn.kind == last_insn_other | |
9329 | || last_insn.seg != now_seg) | |
9330 | return 1; | |
9331 | ||
9332 | if (flag_debug) | |
9333 | as_warn_where (last_insn.file, last_insn.line, | |
9334 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9335 | last_insn.name, i.tm.name); | |
9336 | ||
9337 | return 0; | |
9338 | } | |
9339 | ||
9340 | /* Return 1 if a BRANCH_PADDING frag should be generated. */ | |
9341 | ||
9342 | static int | |
79d72f45 HL |
9343 | add_branch_padding_frag_p (enum align_branch_kind *branch_p, |
9344 | enum mf_jcc_kind *mf_jcc_p) | |
e379e5f3 L |
9345 | { |
9346 | int add_padding; | |
9347 | ||
9348 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
9349 | if (!align_branch_power | |
9350 | || now_seg == absolute_section | |
389d00a5 JB |
9351 | || !cpu_arch_flags.bitfield.cpui386 |
9352 | || i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
e379e5f3 L |
9353 | return 0; |
9354 | ||
9355 | add_padding = 0; | |
9356 | ||
9357 | /* Check for jcc and direct jmp. */ | |
9358 | if (i.tm.opcode_modifier.jump == JUMP) | |
9359 | { | |
9360 | if (i.tm.base_opcode == JUMP_PC_RELATIVE) | |
9361 | { | |
9362 | *branch_p = align_branch_jmp; | |
9363 | add_padding = align_branch & align_branch_jmp_bit; | |
9364 | } | |
9365 | else | |
9366 | { | |
79d72f45 HL |
9367 | /* Because J<cc> and JN<cc> share same group in macro-fusible table, |
9368 | igore the lowest bit. */ | |
9369 | *mf_jcc_p = (i.tm.base_opcode & 0x0e) >> 1; | |
e379e5f3 L |
9370 | *branch_p = align_branch_jcc; |
9371 | if ((align_branch & align_branch_jcc_bit)) | |
9372 | add_padding = 1; | |
9373 | } | |
9374 | } | |
e379e5f3 L |
9375 | else if ((i.tm.base_opcode | 1) == 0xc3) |
9376 | { | |
9377 | /* Near ret. */ | |
9378 | *branch_p = align_branch_ret; | |
9379 | if ((align_branch & align_branch_ret_bit)) | |
9380 | add_padding = 1; | |
9381 | } | |
9382 | else | |
9383 | { | |
9384 | /* Check for indirect jmp, direct and indirect calls. */ | |
9385 | if (i.tm.base_opcode == 0xe8) | |
9386 | { | |
9387 | /* Direct call. */ | |
9388 | *branch_p = align_branch_call; | |
9389 | if ((align_branch & align_branch_call_bit)) | |
9390 | add_padding = 1; | |
9391 | } | |
9392 | else if (i.tm.base_opcode == 0xff | |
9393 | && (i.tm.extension_opcode == 2 | |
9394 | || i.tm.extension_opcode == 4)) | |
9395 | { | |
9396 | /* Indirect call and jmp. */ | |
9397 | *branch_p = align_branch_indirect; | |
9398 | if ((align_branch & align_branch_indirect_bit)) | |
9399 | add_padding = 1; | |
9400 | } | |
9401 | ||
9402 | if (add_padding | |
9403 | && i.disp_operands | |
9404 | && tls_get_addr | |
9405 | && (i.op[0].disps->X_op == O_symbol | |
9406 | || (i.op[0].disps->X_op == O_subtract | |
9407 | && i.op[0].disps->X_op_symbol == GOT_symbol))) | |
9408 | { | |
9409 | symbolS *s = i.op[0].disps->X_add_symbol; | |
9410 | /* No padding to call to global or undefined tls_get_addr. */ | |
9411 | if ((S_IS_EXTERNAL (s) || !S_IS_DEFINED (s)) | |
9412 | && strcmp (S_GET_NAME (s), tls_get_addr) == 0) | |
9413 | return 0; | |
9414 | } | |
9415 | } | |
9416 | ||
9417 | if (add_padding | |
9418 | && last_insn.kind != last_insn_other | |
9419 | && last_insn.seg == now_seg) | |
9420 | { | |
9421 | if (flag_debug) | |
9422 | as_warn_where (last_insn.file, last_insn.line, | |
9423 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9424 | last_insn.name, i.tm.name); | |
9425 | return 0; | |
9426 | } | |
9427 | ||
9428 | return add_padding; | |
9429 | } | |
9430 | ||
29b0f896 | 9431 | static void |
e3bb37b5 | 9432 | output_insn (void) |
29b0f896 | 9433 | { |
2bbd9c25 JJ |
9434 | fragS *insn_start_frag; |
9435 | offsetT insn_start_off; | |
e379e5f3 L |
9436 | fragS *fragP = NULL; |
9437 | enum align_branch_kind branch = align_branch_none; | |
79d72f45 HL |
9438 | /* The initializer is arbitrary just to avoid uninitialized error. |
9439 | it's actually either assigned in add_branch_padding_frag_p | |
9440 | or never be used. */ | |
9441 | enum mf_jcc_kind mf_jcc = mf_jcc_jo; | |
2bbd9c25 | 9442 | |
b4a3a7b4 | 9443 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
48ef937e | 9444 | if (IS_ELF && x86_used_note && now_seg != absolute_section) |
b4a3a7b4 | 9445 | { |
32930e4e L |
9446 | if ((i.xstate & xstate_tmm) == xstate_tmm |
9447 | || i.tm.cpu_flags.bitfield.cpuamx_tile) | |
9448 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_TMM; | |
9449 | ||
b4a3a7b4 L |
9450 | if (i.tm.cpu_flags.bitfield.cpu8087 |
9451 | || i.tm.cpu_flags.bitfield.cpu287 | |
9452 | || i.tm.cpu_flags.bitfield.cpu387 | |
9453 | || i.tm.cpu_flags.bitfield.cpu687 | |
9454 | || i.tm.cpu_flags.bitfield.cpufisttp) | |
9455 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87; | |
014d61ea | 9456 | |
921eafea | 9457 | if ((i.xstate & xstate_mmx) |
389d00a5 JB |
9458 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
9459 | && !is_any_vex_encoding (&i.tm) | |
9460 | && (i.tm.base_opcode == 0x77 /* emms */ | |
9461 | || i.tm.base_opcode == 0x0e /* femms */))) | |
b4a3a7b4 | 9462 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX; |
014d61ea | 9463 | |
32930e4e L |
9464 | if (i.index_reg) |
9465 | { | |
9466 | if (i.index_reg->reg_type.bitfield.zmmword) | |
9467 | i.xstate |= xstate_zmm; | |
9468 | else if (i.index_reg->reg_type.bitfield.ymmword) | |
9469 | i.xstate |= xstate_ymm; | |
9470 | else if (i.index_reg->reg_type.bitfield.xmmword) | |
9471 | i.xstate |= xstate_xmm; | |
9472 | } | |
014d61ea JB |
9473 | |
9474 | /* vzeroall / vzeroupper */ | |
9475 | if (i.tm.base_opcode == 0x77 && i.tm.cpu_flags.bitfield.cpuavx) | |
9476 | i.xstate |= xstate_ymm; | |
9477 | ||
c4694f17 | 9478 | if ((i.xstate & xstate_xmm) |
389d00a5 JB |
9479 | /* ldmxcsr / stmxcsr / vldmxcsr / vstmxcsr */ |
9480 | || (i.tm.base_opcode == 0xae | |
9481 | && (i.tm.cpu_flags.bitfield.cpusse | |
9482 | || i.tm.cpu_flags.bitfield.cpuavx)) | |
c4694f17 TG |
9483 | || i.tm.cpu_flags.bitfield.cpuwidekl |
9484 | || i.tm.cpu_flags.bitfield.cpukl) | |
b4a3a7b4 | 9485 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM; |
014d61ea | 9486 | |
921eafea | 9487 | if ((i.xstate & xstate_ymm) == xstate_ymm) |
b4a3a7b4 | 9488 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_YMM; |
921eafea | 9489 | if ((i.xstate & xstate_zmm) == xstate_zmm) |
b4a3a7b4 | 9490 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_ZMM; |
6225c532 | 9491 | if (i.mask.reg || (i.xstate & xstate_mask) == xstate_mask) |
32930e4e | 9492 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MASK; |
b4a3a7b4 L |
9493 | if (i.tm.cpu_flags.bitfield.cpufxsr) |
9494 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_FXSR; | |
9495 | if (i.tm.cpu_flags.bitfield.cpuxsave) | |
9496 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVE; | |
9497 | if (i.tm.cpu_flags.bitfield.cpuxsaveopt) | |
9498 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT; | |
9499 | if (i.tm.cpu_flags.bitfield.cpuxsavec) | |
9500 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEC; | |
b0ab0693 L |
9501 | |
9502 | if (x86_feature_2_used | |
9503 | || i.tm.cpu_flags.bitfield.cpucmov | |
9504 | || i.tm.cpu_flags.bitfield.cpusyscall | |
389d00a5 JB |
9505 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
9506 | && i.tm.base_opcode == 0xc7 | |
70e95837 | 9507 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE |
b0ab0693 L |
9508 | && i.tm.extension_opcode == 1) /* cmpxchg8b */) |
9509 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_BASELINE; | |
9510 | if (i.tm.cpu_flags.bitfield.cpusse3 | |
9511 | || i.tm.cpu_flags.bitfield.cpussse3 | |
9512 | || i.tm.cpu_flags.bitfield.cpusse4_1 | |
9513 | || i.tm.cpu_flags.bitfield.cpusse4_2 | |
9514 | || i.tm.cpu_flags.bitfield.cpucx16 | |
9515 | || i.tm.cpu_flags.bitfield.cpupopcnt | |
9516 | /* LAHF-SAHF insns in 64-bit mode. */ | |
9517 | || (flag_code == CODE_64BIT | |
35648716 JB |
9518 | && (i.tm.base_opcode | 1) == 0x9f |
9519 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE)) | |
b0ab0693 L |
9520 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V2; |
9521 | if (i.tm.cpu_flags.bitfield.cpuavx | |
9522 | || i.tm.cpu_flags.bitfield.cpuavx2 | |
a9860005 JB |
9523 | /* Any VEX encoded insns execpt for AVX512F, AVX512BW, AVX512DQ, |
9524 | XOP, FMA4, LPW, TBM, and AMX. */ | |
b0ab0693 L |
9525 | || (i.tm.opcode_modifier.vex |
9526 | && !i.tm.cpu_flags.bitfield.cpuavx512f | |
9527 | && !i.tm.cpu_flags.bitfield.cpuavx512bw | |
9528 | && !i.tm.cpu_flags.bitfield.cpuavx512dq | |
a9860005 JB |
9529 | && !i.tm.cpu_flags.bitfield.cpuxop |
9530 | && !i.tm.cpu_flags.bitfield.cpufma4 | |
b0ab0693 L |
9531 | && !i.tm.cpu_flags.bitfield.cpulwp |
9532 | && !i.tm.cpu_flags.bitfield.cputbm | |
9533 | && !(x86_feature_2_used & GNU_PROPERTY_X86_FEATURE_2_TMM)) | |
9534 | || i.tm.cpu_flags.bitfield.cpuf16c | |
9535 | || i.tm.cpu_flags.bitfield.cpufma | |
9536 | || i.tm.cpu_flags.bitfield.cpulzcnt | |
9537 | || i.tm.cpu_flags.bitfield.cpumovbe | |
9538 | || i.tm.cpu_flags.bitfield.cpuxsaves | |
9539 | || (x86_feature_2_used | |
9540 | & (GNU_PROPERTY_X86_FEATURE_2_XSAVE | |
9541 | | GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT | |
9542 | | GNU_PROPERTY_X86_FEATURE_2_XSAVEC)) != 0) | |
9543 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V3; | |
9544 | if (i.tm.cpu_flags.bitfield.cpuavx512f | |
9545 | || i.tm.cpu_flags.bitfield.cpuavx512bw | |
9546 | || i.tm.cpu_flags.bitfield.cpuavx512dq | |
9547 | || i.tm.cpu_flags.bitfield.cpuavx512vl | |
a9860005 JB |
9548 | /* Any EVEX encoded insns except for AVX512ER, AVX512PF, |
9549 | AVX512-4FMAPS, and AVX512-4VNNIW. */ | |
b0ab0693 L |
9550 | || (i.tm.opcode_modifier.evex |
9551 | && !i.tm.cpu_flags.bitfield.cpuavx512er | |
9552 | && !i.tm.cpu_flags.bitfield.cpuavx512pf | |
a9860005 | 9553 | && !i.tm.cpu_flags.bitfield.cpuavx512_4fmaps |
b0ab0693 L |
9554 | && !i.tm.cpu_flags.bitfield.cpuavx512_4vnniw)) |
9555 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V4; | |
b4a3a7b4 L |
9556 | } |
9557 | #endif | |
9558 | ||
29b0f896 AM |
9559 | /* Tie dwarf2 debug info to the address at the start of the insn. |
9560 | We can't do this after the insn has been output as the current | |
9561 | frag may have been closed off. eg. by frag_var. */ | |
9562 | dwarf2_emit_insn (0); | |
9563 | ||
2bbd9c25 JJ |
9564 | insn_start_frag = frag_now; |
9565 | insn_start_off = frag_now_fix (); | |
9566 | ||
79d72f45 | 9567 | if (add_branch_padding_frag_p (&branch, &mf_jcc)) |
e379e5f3 L |
9568 | { |
9569 | char *p; | |
9570 | /* Branch can be 8 bytes. Leave some room for prefixes. */ | |
9571 | unsigned int max_branch_padding_size = 14; | |
9572 | ||
9573 | /* Align section to boundary. */ | |
9574 | record_alignment (now_seg, align_branch_power); | |
9575 | ||
9576 | /* Make room for padding. */ | |
9577 | frag_grow (max_branch_padding_size); | |
9578 | ||
9579 | /* Start of the padding. */ | |
9580 | p = frag_more (0); | |
9581 | ||
9582 | fragP = frag_now; | |
9583 | ||
9584 | frag_var (rs_machine_dependent, max_branch_padding_size, 0, | |
9585 | ENCODE_RELAX_STATE (BRANCH_PADDING, 0), | |
9586 | NULL, 0, p); | |
9587 | ||
79d72f45 | 9588 | fragP->tc_frag_data.mf_type = mf_jcc; |
e379e5f3 L |
9589 | fragP->tc_frag_data.branch_type = branch; |
9590 | fragP->tc_frag_data.max_bytes = max_branch_padding_size; | |
9591 | } | |
9592 | ||
d59a54c2 JB |
9593 | if (!cpu_arch_flags.bitfield.cpui386 && (flag_code != CODE_16BIT) |
9594 | && !pre_386_16bit_warned) | |
9595 | { | |
9596 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
9597 | pre_386_16bit_warned = true; | |
9598 | } | |
9599 | ||
29b0f896 | 9600 | /* Output jumps. */ |
0cfa3eb3 | 9601 | if (i.tm.opcode_modifier.jump == JUMP) |
29b0f896 | 9602 | output_branch (); |
0cfa3eb3 JB |
9603 | else if (i.tm.opcode_modifier.jump == JUMP_BYTE |
9604 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 | 9605 | output_jump (); |
0cfa3eb3 | 9606 | else if (i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT) |
29b0f896 AM |
9607 | output_interseg_jump (); |
9608 | else | |
9609 | { | |
9610 | /* Output normal instructions here. */ | |
9611 | char *p; | |
9612 | unsigned char *q; | |
47465058 | 9613 | unsigned int j; |
79d72f45 | 9614 | enum mf_cmp_kind mf_cmp; |
4dffcebc | 9615 | |
e4e00185 | 9616 | if (avoid_fence |
389d00a5 JB |
9617 | && (i.tm.base_opcode == 0xaee8 |
9618 | || i.tm.base_opcode == 0xaef0 | |
9619 | || i.tm.base_opcode == 0xaef8)) | |
48ef937e JB |
9620 | { |
9621 | /* Encode lfence, mfence, and sfence as | |
9622 | f0 83 04 24 00 lock addl $0x0, (%{re}sp). */ | |
47f4115a JB |
9623 | if (flag_code == CODE_16BIT) |
9624 | as_bad (_("Cannot convert `%s' in 16-bit mode"), i.tm.name); | |
9625 | else if (omit_lock_prefix) | |
9626 | as_bad (_("Cannot convert `%s' with `-momit-lock-prefix=yes' in effect"), | |
9627 | i.tm.name); | |
9628 | else if (now_seg != absolute_section) | |
48ef937e JB |
9629 | { |
9630 | offsetT val = 0x240483f0ULL; | |
9631 | ||
9632 | p = frag_more (5); | |
9633 | md_number_to_chars (p, val, 5); | |
9634 | } | |
9635 | else | |
9636 | abs_section_offset += 5; | |
9637 | return; | |
9638 | } | |
e4e00185 | 9639 | |
d022bddd IT |
9640 | /* Some processors fail on LOCK prefix. This options makes |
9641 | assembler ignore LOCK prefix and serves as a workaround. */ | |
9642 | if (omit_lock_prefix) | |
9643 | { | |
35648716 JB |
9644 | if (i.tm.base_opcode == LOCK_PREFIX_OPCODE |
9645 | && i.tm.opcode_modifier.isprefix) | |
d022bddd IT |
9646 | return; |
9647 | i.prefix[LOCK_PREFIX] = 0; | |
9648 | } | |
9649 | ||
e379e5f3 L |
9650 | if (branch) |
9651 | /* Skip if this is a branch. */ | |
9652 | ; | |
79d72f45 | 9653 | else if (add_fused_jcc_padding_frag_p (&mf_cmp)) |
e379e5f3 L |
9654 | { |
9655 | /* Make room for padding. */ | |
9656 | frag_grow (MAX_FUSED_JCC_PADDING_SIZE); | |
9657 | p = frag_more (0); | |
9658 | ||
9659 | fragP = frag_now; | |
9660 | ||
9661 | frag_var (rs_machine_dependent, MAX_FUSED_JCC_PADDING_SIZE, 0, | |
9662 | ENCODE_RELAX_STATE (FUSED_JCC_PADDING, 0), | |
9663 | NULL, 0, p); | |
9664 | ||
79d72f45 | 9665 | fragP->tc_frag_data.mf_type = mf_cmp; |
e379e5f3 L |
9666 | fragP->tc_frag_data.branch_type = align_branch_fused; |
9667 | fragP->tc_frag_data.max_bytes = MAX_FUSED_JCC_PADDING_SIZE; | |
9668 | } | |
9669 | else if (add_branch_prefix_frag_p ()) | |
9670 | { | |
9671 | unsigned int max_prefix_size = align_branch_prefix_size; | |
9672 | ||
9673 | /* Make room for padding. */ | |
9674 | frag_grow (max_prefix_size); | |
9675 | p = frag_more (0); | |
9676 | ||
9677 | fragP = frag_now; | |
9678 | ||
9679 | frag_var (rs_machine_dependent, max_prefix_size, 0, | |
9680 | ENCODE_RELAX_STATE (BRANCH_PREFIX, 0), | |
9681 | NULL, 0, p); | |
9682 | ||
9683 | fragP->tc_frag_data.max_bytes = max_prefix_size; | |
9684 | } | |
9685 | ||
43234a1e L |
9686 | /* Since the VEX/EVEX prefix contains the implicit prefix, we |
9687 | don't need the explicit prefix. */ | |
cf665fee | 9688 | if (!is_any_vex_encoding (&i.tm)) |
bc4bd9ab | 9689 | { |
7b47a312 | 9690 | switch (i.tm.opcode_modifier.opcodeprefix) |
bc4bd9ab | 9691 | { |
7b47a312 L |
9692 | case PREFIX_0X66: |
9693 | add_prefix (0x66); | |
9694 | break; | |
9695 | case PREFIX_0XF2: | |
9696 | add_prefix (0xf2); | |
9697 | break; | |
9698 | case PREFIX_0XF3: | |
8b65b895 L |
9699 | if (!i.tm.cpu_flags.bitfield.cpupadlock |
9700 | || (i.prefix[REP_PREFIX] != 0xf3)) | |
9701 | add_prefix (0xf3); | |
c0f3af97 | 9702 | break; |
7b47a312 | 9703 | case PREFIX_NONE: |
9a182d04 | 9704 | switch (i.opcode_length) |
c0f3af97 | 9705 | { |
7b47a312 | 9706 | case 2: |
7b47a312 | 9707 | break; |
9a182d04 | 9708 | case 1: |
7b47a312 | 9709 | /* Check for pseudo prefixes. */ |
9a182d04 JB |
9710 | if (!i.tm.opcode_modifier.isprefix || i.tm.base_opcode) |
9711 | break; | |
7b47a312 L |
9712 | as_bad_where (insn_start_frag->fr_file, |
9713 | insn_start_frag->fr_line, | |
9714 | _("pseudo prefix without instruction")); | |
9715 | return; | |
9716 | default: | |
9717 | abort (); | |
4dffcebc | 9718 | } |
c0f3af97 | 9719 | break; |
c0f3af97 L |
9720 | default: |
9721 | abort (); | |
bc4bd9ab | 9722 | } |
c0f3af97 | 9723 | |
6d19a37a | 9724 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
cf61b747 L |
9725 | /* For x32, add a dummy REX_OPCODE prefix for mov/add with |
9726 | R_X86_64_GOTTPOFF relocation so that linker can safely | |
14470f07 L |
9727 | perform IE->LE optimization. A dummy REX_OPCODE prefix |
9728 | is also needed for lea with R_X86_64_GOTPC32_TLSDESC | |
9729 | relocation for GDesc -> IE/LE optimization. */ | |
cf61b747 L |
9730 | if (x86_elf_abi == X86_64_X32_ABI |
9731 | && i.operands == 2 | |
14470f07 L |
9732 | && (i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF |
9733 | || i.reloc[0] == BFD_RELOC_X86_64_GOTPC32_TLSDESC) | |
cf61b747 L |
9734 | && i.prefix[REX_PREFIX] == 0) |
9735 | add_prefix (REX_OPCODE); | |
6d19a37a | 9736 | #endif |
cf61b747 | 9737 | |
c0f3af97 L |
9738 | /* The prefix bytes. */ |
9739 | for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++) | |
9740 | if (*q) | |
48ef937e | 9741 | frag_opcode_byte (*q); |
0f10071e | 9742 | } |
ae5c1c7b | 9743 | else |
c0f3af97 L |
9744 | { |
9745 | for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++) | |
9746 | if (*q) | |
9747 | switch (j) | |
9748 | { | |
c0f3af97 L |
9749 | case SEG_PREFIX: |
9750 | case ADDR_PREFIX: | |
48ef937e | 9751 | frag_opcode_byte (*q); |
c0f3af97 L |
9752 | break; |
9753 | default: | |
9754 | /* There should be no other prefixes for instructions | |
9755 | with VEX prefix. */ | |
9756 | abort (); | |
9757 | } | |
9758 | ||
43234a1e L |
9759 | /* For EVEX instructions i.vrex should become 0 after |
9760 | build_evex_prefix. For VEX instructions upper 16 registers | |
9761 | aren't available, so VREX should be 0. */ | |
9762 | if (i.vrex) | |
9763 | abort (); | |
c0f3af97 | 9764 | /* Now the VEX prefix. */ |
48ef937e JB |
9765 | if (now_seg != absolute_section) |
9766 | { | |
9767 | p = frag_more (i.vex.length); | |
9768 | for (j = 0; j < i.vex.length; j++) | |
9769 | p[j] = i.vex.bytes[j]; | |
9770 | } | |
9771 | else | |
9772 | abs_section_offset += i.vex.length; | |
c0f3af97 | 9773 | } |
252b5132 | 9774 | |
29b0f896 | 9775 | /* Now the opcode; be careful about word order here! */ |
389d00a5 JB |
9776 | j = i.opcode_length; |
9777 | if (!i.vex.length) | |
9778 | switch (i.tm.opcode_modifier.opcodespace) | |
9779 | { | |
9780 | case SPACE_BASE: | |
9781 | break; | |
9782 | case SPACE_0F: | |
9783 | ++j; | |
9784 | break; | |
9785 | case SPACE_0F38: | |
9786 | case SPACE_0F3A: | |
9787 | j += 2; | |
9788 | break; | |
9789 | default: | |
9790 | abort (); | |
9791 | } | |
9792 | ||
48ef937e | 9793 | if (now_seg == absolute_section) |
389d00a5 JB |
9794 | abs_section_offset += j; |
9795 | else if (j == 1) | |
29b0f896 AM |
9796 | { |
9797 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
9798 | } | |
9799 | else | |
9800 | { | |
389d00a5 JB |
9801 | p = frag_more (j); |
9802 | if (!i.vex.length | |
9803 | && i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
9804 | { | |
9805 | *p++ = 0x0f; | |
9806 | if (i.tm.opcode_modifier.opcodespace != SPACE_0F) | |
9807 | *p++ = i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
9808 | ? 0x38 : 0x3a; | |
9809 | } | |
9810 | ||
9a182d04 | 9811 | switch (i.opcode_length) |
331d2d0d | 9812 | { |
4dffcebc | 9813 | case 2: |
389d00a5 JB |
9814 | /* Put out high byte first: can't use md_number_to_chars! */ |
9815 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
9816 | /* Fall through. */ | |
9817 | case 1: | |
9818 | *p = i.tm.base_opcode & 0xff; | |
4dffcebc L |
9819 | break; |
9820 | default: | |
9821 | abort (); | |
9822 | break; | |
331d2d0d | 9823 | } |
0f10071e | 9824 | |
29b0f896 | 9825 | } |
3e73aa7c | 9826 | |
29b0f896 | 9827 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 9828 | if (i.tm.opcode_modifier.modrm) |
29b0f896 | 9829 | { |
48ef937e JB |
9830 | frag_opcode_byte ((i.rm.regmem << 0) |
9831 | | (i.rm.reg << 3) | |
9832 | | (i.rm.mode << 6)); | |
29b0f896 AM |
9833 | /* If i.rm.regmem == ESP (4) |
9834 | && i.rm.mode != (Register mode) | |
9835 | && not 16 bit | |
9836 | ==> need second modrm byte. */ | |
9837 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
9838 | && i.rm.mode != 3 | |
dc821c5f | 9839 | && !(i.base_reg && i.base_reg->reg_type.bitfield.word)) |
48ef937e JB |
9840 | frag_opcode_byte ((i.sib.base << 0) |
9841 | | (i.sib.index << 3) | |
9842 | | (i.sib.scale << 6)); | |
29b0f896 | 9843 | } |
3e73aa7c | 9844 | |
29b0f896 | 9845 | if (i.disp_operands) |
2bbd9c25 | 9846 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 9847 | |
29b0f896 | 9848 | if (i.imm_operands) |
2bbd9c25 | 9849 | output_imm (insn_start_frag, insn_start_off); |
9c33702b JB |
9850 | |
9851 | /* | |
9852 | * frag_now_fix () returning plain abs_section_offset when we're in the | |
9853 | * absolute section, and abs_section_offset not getting updated as data | |
9854 | * gets added to the frag breaks the logic below. | |
9855 | */ | |
9856 | if (now_seg != absolute_section) | |
9857 | { | |
9858 | j = encoding_length (insn_start_frag, insn_start_off, frag_more (0)); | |
9859 | if (j > 15) | |
9860 | as_warn (_("instruction length of %u bytes exceeds the limit of 15"), | |
9861 | j); | |
e379e5f3 L |
9862 | else if (fragP) |
9863 | { | |
9864 | /* NB: Don't add prefix with GOTPC relocation since | |
9865 | output_disp() above depends on the fixed encoding | |
9866 | length. Can't add prefix with TLS relocation since | |
9867 | it breaks TLS linker optimization. */ | |
9868 | unsigned int max = i.has_gotpc_tls_reloc ? 0 : 15 - j; | |
9869 | /* Prefix count on the current instruction. */ | |
9870 | unsigned int count = i.vex.length; | |
9871 | unsigned int k; | |
9872 | for (k = 0; k < ARRAY_SIZE (i.prefix); k++) | |
9873 | /* REX byte is encoded in VEX/EVEX prefix. */ | |
9874 | if (i.prefix[k] && (k != REX_PREFIX || !i.vex.length)) | |
9875 | count++; | |
9876 | ||
9877 | /* Count prefixes for extended opcode maps. */ | |
9878 | if (!i.vex.length) | |
389d00a5 | 9879 | switch (i.tm.opcode_modifier.opcodespace) |
e379e5f3 | 9880 | { |
389d00a5 | 9881 | case SPACE_BASE: |
e379e5f3 | 9882 | break; |
389d00a5 JB |
9883 | case SPACE_0F: |
9884 | count++; | |
e379e5f3 | 9885 | break; |
389d00a5 JB |
9886 | case SPACE_0F38: |
9887 | case SPACE_0F3A: | |
9888 | count += 2; | |
e379e5f3 L |
9889 | break; |
9890 | default: | |
9891 | abort (); | |
9892 | } | |
9893 | ||
9894 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
9895 | == BRANCH_PREFIX) | |
9896 | { | |
9897 | /* Set the maximum prefix size in BRANCH_PREFIX | |
9898 | frag. */ | |
9899 | if (fragP->tc_frag_data.max_bytes > max) | |
9900 | fragP->tc_frag_data.max_bytes = max; | |
9901 | if (fragP->tc_frag_data.max_bytes > count) | |
9902 | fragP->tc_frag_data.max_bytes -= count; | |
9903 | else | |
9904 | fragP->tc_frag_data.max_bytes = 0; | |
9905 | } | |
9906 | else | |
9907 | { | |
9908 | /* Remember the maximum prefix size in FUSED_JCC_PADDING | |
9909 | frag. */ | |
9910 | unsigned int max_prefix_size; | |
9911 | if (align_branch_prefix_size > max) | |
9912 | max_prefix_size = max; | |
9913 | else | |
9914 | max_prefix_size = align_branch_prefix_size; | |
9915 | if (max_prefix_size > count) | |
9916 | fragP->tc_frag_data.max_prefix_length | |
9917 | = max_prefix_size - count; | |
9918 | } | |
9919 | ||
9920 | /* Use existing segment prefix if possible. Use CS | |
9921 | segment prefix in 64-bit mode. In 32-bit mode, use SS | |
9922 | segment prefix with ESP/EBP base register and use DS | |
9923 | segment prefix without ESP/EBP base register. */ | |
9924 | if (i.prefix[SEG_PREFIX]) | |
9925 | fragP->tc_frag_data.default_prefix = i.prefix[SEG_PREFIX]; | |
9926 | else if (flag_code == CODE_64BIT) | |
9927 | fragP->tc_frag_data.default_prefix = CS_PREFIX_OPCODE; | |
9928 | else if (i.base_reg | |
9929 | && (i.base_reg->reg_num == 4 | |
9930 | || i.base_reg->reg_num == 5)) | |
9931 | fragP->tc_frag_data.default_prefix = SS_PREFIX_OPCODE; | |
9932 | else | |
9933 | fragP->tc_frag_data.default_prefix = DS_PREFIX_OPCODE; | |
9934 | } | |
9c33702b | 9935 | } |
29b0f896 | 9936 | } |
252b5132 | 9937 | |
e379e5f3 L |
9938 | /* NB: Don't work with COND_JUMP86 without i386. */ |
9939 | if (align_branch_power | |
9940 | && now_seg != absolute_section | |
9941 | && cpu_arch_flags.bitfield.cpui386) | |
9942 | { | |
9943 | /* Terminate each frag so that we can add prefix and check for | |
9944 | fused jcc. */ | |
9945 | frag_wane (frag_now); | |
9946 | frag_new (0); | |
9947 | } | |
9948 | ||
29b0f896 AM |
9949 | #ifdef DEBUG386 |
9950 | if (flag_debug) | |
9951 | { | |
7b81dfbb | 9952 | pi ("" /*line*/, &i); |
29b0f896 AM |
9953 | } |
9954 | #endif /* DEBUG386 */ | |
9955 | } | |
252b5132 | 9956 | |
e205caa7 L |
9957 | /* Return the size of the displacement operand N. */ |
9958 | ||
9959 | static int | |
9960 | disp_size (unsigned int n) | |
9961 | { | |
9962 | int size = 4; | |
43234a1e | 9963 | |
b5014f7a | 9964 | if (i.types[n].bitfield.disp64) |
40fb9820 L |
9965 | size = 8; |
9966 | else if (i.types[n].bitfield.disp8) | |
9967 | size = 1; | |
9968 | else if (i.types[n].bitfield.disp16) | |
9969 | size = 2; | |
e205caa7 L |
9970 | return size; |
9971 | } | |
9972 | ||
9973 | /* Return the size of the immediate operand N. */ | |
9974 | ||
9975 | static int | |
9976 | imm_size (unsigned int n) | |
9977 | { | |
9978 | int size = 4; | |
40fb9820 L |
9979 | if (i.types[n].bitfield.imm64) |
9980 | size = 8; | |
9981 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
9982 | size = 1; | |
9983 | else if (i.types[n].bitfield.imm16) | |
9984 | size = 2; | |
e205caa7 L |
9985 | return size; |
9986 | } | |
9987 | ||
29b0f896 | 9988 | static void |
64e74474 | 9989 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
9990 | { |
9991 | char *p; | |
9992 | unsigned int n; | |
252b5132 | 9993 | |
29b0f896 AM |
9994 | for (n = 0; n < i.operands; n++) |
9995 | { | |
b5014f7a | 9996 | if (operand_type_check (i.types[n], disp)) |
29b0f896 | 9997 | { |
48ef937e JB |
9998 | int size = disp_size (n); |
9999 | ||
10000 | if (now_seg == absolute_section) | |
10001 | abs_section_offset += size; | |
10002 | else if (i.op[n].disps->X_op == O_constant) | |
29b0f896 | 10003 | { |
43234a1e | 10004 | offsetT val = i.op[n].disps->X_add_number; |
252b5132 | 10005 | |
629cfaf1 JB |
10006 | val = offset_in_range (val >> (size == 1 ? i.memshift : 0), |
10007 | size); | |
29b0f896 AM |
10008 | p = frag_more (size); |
10009 | md_number_to_chars (p, val, size); | |
10010 | } | |
10011 | else | |
10012 | { | |
f86103b7 | 10013 | enum bfd_reloc_code_real reloc_type; |
a775efc8 JB |
10014 | bool pcrel = (i.flags[n] & Operand_PCrel) != 0; |
10015 | bool sign = (flag_code == CODE_64BIT && size == 4 | |
10016 | && (!want_disp32 (&i.tm) | |
10017 | || (i.tm.opcode_modifier.jump && !i.jumpabsolute | |
10018 | && !i.types[n].bitfield.baseindex))) | |
10019 | || pcrel; | |
02a86693 | 10020 | fixS *fixP; |
29b0f896 | 10021 | |
e205caa7 | 10022 | /* We can't have 8 bit displacement here. */ |
9c2799c2 | 10023 | gas_assert (!i.types[n].bitfield.disp8); |
e205caa7 | 10024 | |
29b0f896 AM |
10025 | /* The PC relative address is computed relative |
10026 | to the instruction boundary, so in case immediate | |
10027 | fields follows, we need to adjust the value. */ | |
10028 | if (pcrel && i.imm_operands) | |
10029 | { | |
29b0f896 | 10030 | unsigned int n1; |
e205caa7 | 10031 | int sz = 0; |
252b5132 | 10032 | |
29b0f896 | 10033 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 10034 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 10035 | { |
e205caa7 L |
10036 | /* Only one immediate is allowed for PC |
10037 | relative address. */ | |
9c2799c2 | 10038 | gas_assert (sz == 0); |
e205caa7 L |
10039 | sz = imm_size (n1); |
10040 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 10041 | } |
29b0f896 | 10042 | /* We should find the immediate. */ |
9c2799c2 | 10043 | gas_assert (sz != 0); |
29b0f896 | 10044 | } |
520dc8e8 | 10045 | |
29b0f896 | 10046 | p = frag_more (size); |
d258b828 | 10047 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 10048 | if (GOT_symbol |
2bbd9c25 | 10049 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 10050 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
10051 | || reloc_type == BFD_RELOC_X86_64_32S |
10052 | || (reloc_type == BFD_RELOC_64 | |
10053 | && object_64bit)) | |
d6ab8113 JB |
10054 | && (i.op[n].disps->X_op == O_symbol |
10055 | || (i.op[n].disps->X_op == O_add | |
10056 | && ((symbol_get_value_expression | |
10057 | (i.op[n].disps->X_op_symbol)->X_op) | |
10058 | == O_subtract)))) | |
10059 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 | 10060 | { |
4fa24527 | 10061 | if (!object_64bit) |
7b81dfbb AJ |
10062 | { |
10063 | reloc_type = BFD_RELOC_386_GOTPC; | |
5b7c81bd | 10064 | i.has_gotpc_tls_reloc = true; |
98da05bf | 10065 | i.op[n].disps->X_add_number += |
d583596c | 10066 | encoding_length (insn_start_frag, insn_start_off, p); |
7b81dfbb AJ |
10067 | } |
10068 | else if (reloc_type == BFD_RELOC_64) | |
10069 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 10070 | else |
7b81dfbb AJ |
10071 | /* Don't do the adjustment for x86-64, as there |
10072 | the pcrel addressing is relative to the _next_ | |
10073 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 10074 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 10075 | } |
e379e5f3 L |
10076 | else if (align_branch_power) |
10077 | { | |
10078 | switch (reloc_type) | |
10079 | { | |
10080 | case BFD_RELOC_386_TLS_GD: | |
10081 | case BFD_RELOC_386_TLS_LDM: | |
10082 | case BFD_RELOC_386_TLS_IE: | |
10083 | case BFD_RELOC_386_TLS_IE_32: | |
10084 | case BFD_RELOC_386_TLS_GOTIE: | |
10085 | case BFD_RELOC_386_TLS_GOTDESC: | |
10086 | case BFD_RELOC_386_TLS_DESC_CALL: | |
10087 | case BFD_RELOC_X86_64_TLSGD: | |
10088 | case BFD_RELOC_X86_64_TLSLD: | |
10089 | case BFD_RELOC_X86_64_GOTTPOFF: | |
10090 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: | |
10091 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
5b7c81bd | 10092 | i.has_gotpc_tls_reloc = true; |
e379e5f3 L |
10093 | default: |
10094 | break; | |
10095 | } | |
10096 | } | |
02a86693 L |
10097 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, |
10098 | size, i.op[n].disps, pcrel, | |
10099 | reloc_type); | |
eb19308f JB |
10100 | |
10101 | if (flag_code == CODE_64BIT && size == 4 && pcrel | |
10102 | && !i.prefix[ADDR_PREFIX]) | |
10103 | fixP->fx_signed = 1; | |
10104 | ||
02a86693 L |
10105 | /* Check for "call/jmp *mem", "mov mem, %reg", |
10106 | "test %reg, mem" and "binop mem, %reg" where binop | |
10107 | is one of adc, add, and, cmp, or, sbb, sub, xor | |
e60f4d3b L |
10108 | instructions without data prefix. Always generate |
10109 | R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */ | |
10110 | if (i.prefix[DATA_PREFIX] == 0 | |
10111 | && (generate_relax_relocations | |
10112 | || (!object_64bit | |
10113 | && i.rm.mode == 0 | |
10114 | && i.rm.regmem == 5)) | |
0cb4071e L |
10115 | && (i.rm.mode == 2 |
10116 | || (i.rm.mode == 0 && i.rm.regmem == 5)) | |
389d00a5 | 10117 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
02a86693 L |
10118 | && ((i.operands == 1 |
10119 | && i.tm.base_opcode == 0xff | |
10120 | && (i.rm.reg == 2 || i.rm.reg == 4)) | |
10121 | || (i.operands == 2 | |
10122 | && (i.tm.base_opcode == 0x8b | |
10123 | || i.tm.base_opcode == 0x85 | |
2ae4c703 | 10124 | || (i.tm.base_opcode & ~0x38) == 0x03)))) |
02a86693 L |
10125 | { |
10126 | if (object_64bit) | |
10127 | { | |
10128 | fixP->fx_tcbit = i.rex != 0; | |
10129 | if (i.base_reg | |
e968fc9b | 10130 | && (i.base_reg->reg_num == RegIP)) |
02a86693 L |
10131 | fixP->fx_tcbit2 = 1; |
10132 | } | |
10133 | else | |
10134 | fixP->fx_tcbit2 = 1; | |
10135 | } | |
29b0f896 AM |
10136 | } |
10137 | } | |
10138 | } | |
10139 | } | |
252b5132 | 10140 | |
29b0f896 | 10141 | static void |
64e74474 | 10142 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
10143 | { |
10144 | char *p; | |
10145 | unsigned int n; | |
252b5132 | 10146 | |
29b0f896 AM |
10147 | for (n = 0; n < i.operands; n++) |
10148 | { | |
40fb9820 | 10149 | if (operand_type_check (i.types[n], imm)) |
29b0f896 | 10150 | { |
48ef937e JB |
10151 | int size = imm_size (n); |
10152 | ||
10153 | if (now_seg == absolute_section) | |
10154 | abs_section_offset += size; | |
10155 | else if (i.op[n].imms->X_op == O_constant) | |
29b0f896 | 10156 | { |
29b0f896 | 10157 | offsetT val; |
b4cac588 | 10158 | |
29b0f896 AM |
10159 | val = offset_in_range (i.op[n].imms->X_add_number, |
10160 | size); | |
10161 | p = frag_more (size); | |
10162 | md_number_to_chars (p, val, size); | |
10163 | } | |
10164 | else | |
10165 | { | |
10166 | /* Not absolute_section. | |
10167 | Need a 32-bit fixup (don't support 8bit | |
10168 | non-absolute imms). Try to support other | |
10169 | sizes ... */ | |
f86103b7 | 10170 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 10171 | int sign; |
29b0f896 | 10172 | |
40fb9820 | 10173 | if (i.types[n].bitfield.imm32s |
a7d61044 | 10174 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 10175 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 10176 | sign = 1; |
e205caa7 L |
10177 | else |
10178 | sign = 0; | |
520dc8e8 | 10179 | |
29b0f896 | 10180 | p = frag_more (size); |
d258b828 | 10181 | reloc_type = reloc (size, 0, sign, i.reloc[n]); |
f86103b7 | 10182 | |
2bbd9c25 JJ |
10183 | /* This is tough to explain. We end up with this one if we |
10184 | * have operands that look like | |
10185 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
10186 | * obtain the absolute address of the GOT, and it is strongly | |
10187 | * preferable from a performance point of view to avoid using | |
10188 | * a runtime relocation for this. The actual sequence of | |
10189 | * instructions often look something like: | |
10190 | * | |
10191 | * call .L66 | |
10192 | * .L66: | |
10193 | * popl %ebx | |
10194 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
10195 | * | |
10196 | * The call and pop essentially return the absolute address | |
10197 | * of the label .L66 and store it in %ebx. The linker itself | |
10198 | * will ultimately change the first operand of the addl so | |
10199 | * that %ebx points to the GOT, but to keep things simple, the | |
10200 | * .o file must have this operand set so that it generates not | |
10201 | * the absolute address of .L66, but the absolute address of | |
10202 | * itself. This allows the linker itself simply treat a GOTPC | |
10203 | * relocation as asking for a pcrel offset to the GOT to be | |
10204 | * added in, and the addend of the relocation is stored in the | |
10205 | * operand field for the instruction itself. | |
10206 | * | |
10207 | * Our job here is to fix the operand so that it would add | |
10208 | * the correct offset so that %ebx would point to itself. The | |
10209 | * thing that is tricky is that .-.L66 will point to the | |
10210 | * beginning of the instruction, so we need to further modify | |
10211 | * the operand so that it will point to itself. There are | |
10212 | * other cases where you have something like: | |
10213 | * | |
10214 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
10215 | * | |
10216 | * and here no correction would be required. Internally in | |
10217 | * the assembler we treat operands of this form as not being | |
10218 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
10219 | * whether it would simplify matters to do it this way. Who | |
10220 | * knows. In earlier versions of the PIC patches, the | |
10221 | * pcrel_adjust field was used to store the correction, but | |
10222 | * since the expression is not pcrel, I felt it would be | |
10223 | * confusing to do it this way. */ | |
10224 | ||
d6ab8113 | 10225 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
10226 | || reloc_type == BFD_RELOC_X86_64_32S |
10227 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
10228 | && GOT_symbol |
10229 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
10230 | && (i.op[n].imms->X_op == O_symbol | |
10231 | || (i.op[n].imms->X_op == O_add | |
10232 | && ((symbol_get_value_expression | |
10233 | (i.op[n].imms->X_op_symbol)->X_op) | |
10234 | == O_subtract)))) | |
10235 | { | |
4fa24527 | 10236 | if (!object_64bit) |
d6ab8113 | 10237 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 10238 | else if (size == 4) |
d6ab8113 | 10239 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
10240 | else if (size == 8) |
10241 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
5b7c81bd | 10242 | i.has_gotpc_tls_reloc = true; |
d583596c JB |
10243 | i.op[n].imms->X_add_number += |
10244 | encoding_length (insn_start_frag, insn_start_off, p); | |
29b0f896 | 10245 | } |
29b0f896 AM |
10246 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
10247 | i.op[n].imms, 0, reloc_type); | |
10248 | } | |
10249 | } | |
10250 | } | |
252b5132 RH |
10251 | } |
10252 | \f | |
d182319b JB |
10253 | /* x86_cons_fix_new is called via the expression parsing code when a |
10254 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
d182319b JB |
10255 | static int cons_sign = -1; |
10256 | ||
10257 | void | |
e3bb37b5 | 10258 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
62ebcb5c | 10259 | expressionS *exp, bfd_reloc_code_real_type r) |
d182319b | 10260 | { |
d258b828 | 10261 | r = reloc (len, 0, cons_sign, r); |
d182319b JB |
10262 | |
10263 | #ifdef TE_PE | |
10264 | if (exp->X_op == O_secrel) | |
10265 | { | |
10266 | exp->X_op = O_symbol; | |
10267 | r = BFD_RELOC_32_SECREL; | |
10268 | } | |
145667f8 MH |
10269 | else if (exp->X_op == O_secidx) |
10270 | r = BFD_RELOC_16_SECIDX; | |
d182319b JB |
10271 | #endif |
10272 | ||
10273 | fix_new_exp (frag, off, len, exp, 0, r); | |
10274 | } | |
10275 | ||
357d1bd8 L |
10276 | /* Export the ABI address size for use by TC_ADDRESS_BYTES for the |
10277 | purpose of the `.dc.a' internal pseudo-op. */ | |
10278 | ||
10279 | int | |
10280 | x86_address_bytes (void) | |
10281 | { | |
10282 | if ((stdoutput->arch_info->mach & bfd_mach_x64_32)) | |
10283 | return 4; | |
10284 | return stdoutput->arch_info->bits_per_address / 8; | |
10285 | } | |
10286 | ||
deea4973 JB |
10287 | #if (!(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \ |
10288 | || defined (LEX_AT)) && !defined (TE_PE) | |
d258b828 | 10289 | # define lex_got(reloc, adjust, types) NULL |
718ddfc0 | 10290 | #else |
f3c180ae AM |
10291 | /* Parse operands of the form |
10292 | <symbol>@GOTOFF+<nnn> | |
10293 | and similar .plt or .got references. | |
10294 | ||
10295 | If we find one, set up the correct relocation in RELOC and copy the | |
10296 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
10297 | parsing by the calling routine. Return this buffer, and if ADJUST | |
10298 | is non-null set it to the length of the string we removed from the | |
10299 | input line. Otherwise return NULL. */ | |
10300 | static char * | |
91d6fa6a | 10301 | lex_got (enum bfd_reloc_code_real *rel, |
64e74474 | 10302 | int *adjust, |
d258b828 | 10303 | i386_operand_type *types) |
f3c180ae | 10304 | { |
7b81dfbb AJ |
10305 | /* Some of the relocations depend on the size of what field is to |
10306 | be relocated. But in our callers i386_immediate and i386_displacement | |
10307 | we don't yet know the operand size (this will be set by insn | |
10308 | matching). Hence we record the word32 relocation here, | |
10309 | and adjust the reloc according to the real size in reloc(). */ | |
145667f8 MH |
10310 | static const struct |
10311 | { | |
f3c180ae | 10312 | const char *str; |
cff8d58a | 10313 | int len; |
4fa24527 | 10314 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 10315 | const i386_operand_type types64; |
5b7c81bd | 10316 | bool need_GOT_symbol; |
145667f8 MH |
10317 | } |
10318 | gotrel[] = | |
10319 | { | |
deea4973 | 10320 | #ifndef TE_PE |
8ce3d284 | 10321 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
10322 | { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32, |
10323 | BFD_RELOC_SIZE32 }, | |
5b7c81bd | 10324 | OPERAND_TYPE_IMM32_64, false }, |
8ce3d284 | 10325 | #endif |
cff8d58a L |
10326 | { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real, |
10327 | BFD_RELOC_X86_64_PLTOFF64 }, | |
5b7c81bd | 10328 | OPERAND_TYPE_IMM64, true }, |
cff8d58a L |
10329 | { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32, |
10330 | BFD_RELOC_X86_64_PLT32 }, | |
a775efc8 | 10331 | OPERAND_TYPE_IMM32_32S_DISP32, false }, |
cff8d58a L |
10332 | { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real, |
10333 | BFD_RELOC_X86_64_GOTPLT64 }, | |
5b7c81bd | 10334 | OPERAND_TYPE_IMM64_DISP64, true }, |
cff8d58a L |
10335 | { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF, |
10336 | BFD_RELOC_X86_64_GOTOFF64 }, | |
5b7c81bd | 10337 | OPERAND_TYPE_IMM64_DISP64, true }, |
cff8d58a L |
10338 | { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real, |
10339 | BFD_RELOC_X86_64_GOTPCREL }, | |
a775efc8 | 10340 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10341 | { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD, |
10342 | BFD_RELOC_X86_64_TLSGD }, | |
a775efc8 | 10343 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10344 | { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM, |
10345 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10346 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10347 | { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real, |
10348 | BFD_RELOC_X86_64_TLSLD }, | |
a775efc8 | 10349 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10350 | { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32, |
10351 | BFD_RELOC_X86_64_GOTTPOFF }, | |
a775efc8 | 10352 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10353 | { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32, |
10354 | BFD_RELOC_X86_64_TPOFF32 }, | |
a775efc8 | 10355 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, true }, |
cff8d58a L |
10356 | { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE, |
10357 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10358 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10359 | { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32, |
10360 | BFD_RELOC_X86_64_DTPOFF32 }, | |
a775efc8 | 10361 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, true }, |
cff8d58a L |
10362 | { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE, |
10363 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10364 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10365 | { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE, |
10366 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10367 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10368 | { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32, |
10369 | BFD_RELOC_X86_64_GOT32 }, | |
a775efc8 | 10370 | OPERAND_TYPE_IMM32_32S_64_DISP32, true }, |
cff8d58a L |
10371 | { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC, |
10372 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
a775efc8 | 10373 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10374 | { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL, |
10375 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
a775efc8 | 10376 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
deea4973 JB |
10377 | #else /* TE_PE */ |
10378 | { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL, | |
10379 | BFD_RELOC_32_SECREL }, | |
a775efc8 | 10380 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, false }, |
deea4973 | 10381 | #endif |
f3c180ae AM |
10382 | }; |
10383 | char *cp; | |
10384 | unsigned int j; | |
10385 | ||
deea4973 | 10386 | #if defined (OBJ_MAYBE_ELF) && !defined (TE_PE) |
718ddfc0 JB |
10387 | if (!IS_ELF) |
10388 | return NULL; | |
d382c579 | 10389 | #endif |
718ddfc0 | 10390 | |
f3c180ae | 10391 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 10392 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
10393 | return NULL; |
10394 | ||
47465058 | 10395 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) |
f3c180ae | 10396 | { |
cff8d58a | 10397 | int len = gotrel[j].len; |
28f81592 | 10398 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 10399 | { |
4fa24527 | 10400 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 10401 | { |
28f81592 AM |
10402 | int first, second; |
10403 | char *tmpbuf, *past_reloc; | |
f3c180ae | 10404 | |
91d6fa6a | 10405 | *rel = gotrel[j].rel[object_64bit]; |
f3c180ae | 10406 | |
3956db08 JB |
10407 | if (types) |
10408 | { | |
10409 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
10410 | { |
10411 | types->bitfield.imm32 = 1; | |
10412 | types->bitfield.disp32 = 1; | |
10413 | } | |
3956db08 JB |
10414 | else |
10415 | *types = gotrel[j].types64; | |
10416 | } | |
10417 | ||
844bf810 | 10418 | if (gotrel[j].need_GOT_symbol && GOT_symbol == NULL) |
f3c180ae AM |
10419 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); |
10420 | ||
28f81592 | 10421 | /* The length of the first part of our input line. */ |
f3c180ae | 10422 | first = cp - input_line_pointer; |
28f81592 AM |
10423 | |
10424 | /* The second part goes from after the reloc token until | |
67c11a9b | 10425 | (and including) an end_of_line char or comma. */ |
28f81592 | 10426 | past_reloc = cp + 1 + len; |
67c11a9b AM |
10427 | cp = past_reloc; |
10428 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
10429 | ++cp; | |
10430 | second = cp + 1 - past_reloc; | |
28f81592 AM |
10431 | |
10432 | /* Allocate and copy string. The trailing NUL shouldn't | |
10433 | be necessary, but be safe. */ | |
add39d23 | 10434 | tmpbuf = XNEWVEC (char, first + second + 2); |
f3c180ae | 10435 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
10436 | if (second != 0 && *past_reloc != ' ') |
10437 | /* Replace the relocation token with ' ', so that | |
10438 | errors like foo@GOTOFF1 will be detected. */ | |
10439 | tmpbuf[first++] = ' '; | |
af89796a L |
10440 | else |
10441 | /* Increment length by 1 if the relocation token is | |
10442 | removed. */ | |
10443 | len++; | |
10444 | if (adjust) | |
10445 | *adjust = len; | |
0787a12d AM |
10446 | memcpy (tmpbuf + first, past_reloc, second); |
10447 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
10448 | return tmpbuf; |
10449 | } | |
10450 | ||
4fa24527 JB |
10451 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
10452 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
10453 | return NULL; |
10454 | } | |
10455 | } | |
10456 | ||
10457 | /* Might be a symbol version string. Don't as_bad here. */ | |
10458 | return NULL; | |
10459 | } | |
4e4f7c87 | 10460 | #endif |
f3c180ae | 10461 | |
62ebcb5c | 10462 | bfd_reloc_code_real_type |
e3bb37b5 | 10463 | x86_cons (expressionS *exp, int size) |
f3c180ae | 10464 | { |
62ebcb5c AM |
10465 | bfd_reloc_code_real_type got_reloc = NO_RELOC; |
10466 | ||
2748c1b1 L |
10467 | #if ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ |
10468 | && !defined (LEX_AT)) \ | |
10469 | || defined (TE_PE) | |
ee86248c JB |
10470 | intel_syntax = -intel_syntax; |
10471 | ||
3c7b9c2c | 10472 | exp->X_md = 0; |
4fa24527 | 10473 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
10474 | { |
10475 | /* Handle @GOTOFF and the like in an expression. */ | |
10476 | char *save; | |
10477 | char *gotfree_input_line; | |
4a57f2cf | 10478 | int adjust = 0; |
f3c180ae AM |
10479 | |
10480 | save = input_line_pointer; | |
d258b828 | 10481 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
10482 | if (gotfree_input_line) |
10483 | input_line_pointer = gotfree_input_line; | |
10484 | ||
10485 | expression (exp); | |
10486 | ||
10487 | if (gotfree_input_line) | |
10488 | { | |
10489 | /* expression () has merrily parsed up to the end of line, | |
10490 | or a comma - in the wrong buffer. Transfer how far | |
10491 | input_line_pointer has moved to the right buffer. */ | |
10492 | input_line_pointer = (save | |
10493 | + (input_line_pointer - gotfree_input_line) | |
10494 | + adjust); | |
10495 | free (gotfree_input_line); | |
3992d3b7 AM |
10496 | if (exp->X_op == O_constant |
10497 | || exp->X_op == O_absent | |
10498 | || exp->X_op == O_illegal | |
0398aac5 | 10499 | || exp->X_op == O_register |
3992d3b7 AM |
10500 | || exp->X_op == O_big) |
10501 | { | |
10502 | char c = *input_line_pointer; | |
10503 | *input_line_pointer = 0; | |
10504 | as_bad (_("missing or invalid expression `%s'"), save); | |
10505 | *input_line_pointer = c; | |
10506 | } | |
b9519cfe L |
10507 | else if ((got_reloc == BFD_RELOC_386_PLT32 |
10508 | || got_reloc == BFD_RELOC_X86_64_PLT32) | |
10509 | && exp->X_op != O_symbol) | |
10510 | { | |
10511 | char c = *input_line_pointer; | |
10512 | *input_line_pointer = 0; | |
10513 | as_bad (_("invalid PLT expression `%s'"), save); | |
10514 | *input_line_pointer = c; | |
10515 | } | |
f3c180ae AM |
10516 | } |
10517 | } | |
10518 | else | |
10519 | expression (exp); | |
ee86248c JB |
10520 | |
10521 | intel_syntax = -intel_syntax; | |
10522 | ||
10523 | if (intel_syntax) | |
10524 | i386_intel_simplify (exp); | |
2748c1b1 L |
10525 | #else |
10526 | expression (exp); | |
10527 | #endif | |
62ebcb5c | 10528 | |
a442cac5 JB |
10529 | /* If not 64bit, massage value, to account for wraparound when !BFD64. */ |
10530 | if (size == 4 && exp->X_op == O_constant && !object_64bit) | |
10531 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
10532 | ||
62ebcb5c | 10533 | return got_reloc; |
f3c180ae | 10534 | } |
f3c180ae | 10535 | |
9f32dd5b L |
10536 | static void |
10537 | signed_cons (int size) | |
6482c264 | 10538 | { |
a442cac5 | 10539 | if (object_64bit) |
d182319b JB |
10540 | cons_sign = 1; |
10541 | cons (size); | |
10542 | cons_sign = -1; | |
6482c264 NC |
10543 | } |
10544 | ||
d182319b | 10545 | #ifdef TE_PE |
6482c264 | 10546 | static void |
7016a5d5 | 10547 | pe_directive_secrel (int dummy ATTRIBUTE_UNUSED) |
6482c264 NC |
10548 | { |
10549 | expressionS exp; | |
10550 | ||
10551 | do | |
10552 | { | |
10553 | expression (&exp); | |
10554 | if (exp.X_op == O_symbol) | |
10555 | exp.X_op = O_secrel; | |
10556 | ||
10557 | emit_expr (&exp, 4); | |
10558 | } | |
10559 | while (*input_line_pointer++ == ','); | |
10560 | ||
10561 | input_line_pointer--; | |
10562 | demand_empty_rest_of_line (); | |
10563 | } | |
145667f8 MH |
10564 | |
10565 | static void | |
10566 | pe_directive_secidx (int dummy ATTRIBUTE_UNUSED) | |
10567 | { | |
10568 | expressionS exp; | |
10569 | ||
10570 | do | |
10571 | { | |
10572 | expression (&exp); | |
10573 | if (exp.X_op == O_symbol) | |
10574 | exp.X_op = O_secidx; | |
10575 | ||
10576 | emit_expr (&exp, 2); | |
10577 | } | |
10578 | while (*input_line_pointer++ == ','); | |
10579 | ||
10580 | input_line_pointer--; | |
10581 | demand_empty_rest_of_line (); | |
10582 | } | |
6482c264 NC |
10583 | #endif |
10584 | ||
7063667e JB |
10585 | /* Handle Rounding Control / SAE specifiers. */ |
10586 | ||
10587 | static char * | |
10588 | RC_SAE_specifier (const char *pstr) | |
10589 | { | |
10590 | unsigned int j; | |
10591 | ||
10592 | for (j = 0; j < ARRAY_SIZE (RC_NamesTable); j++) | |
10593 | { | |
10594 | if (!strncmp (pstr, RC_NamesTable[j].name, RC_NamesTable[j].len)) | |
10595 | { | |
10596 | if (i.rounding.type != rc_none) | |
10597 | { | |
10598 | as_bad (_("duplicated `{%s}'"), RC_NamesTable[j].name); | |
10599 | return NULL; | |
10600 | } | |
10601 | ||
10602 | i.rounding.type = RC_NamesTable[j].type; | |
10603 | ||
10604 | return (char *)(pstr + RC_NamesTable[j].len); | |
10605 | } | |
10606 | } | |
10607 | ||
10608 | return NULL; | |
10609 | } | |
10610 | ||
43234a1e L |
10611 | /* Handle Vector operations. */ |
10612 | ||
10613 | static char * | |
f70c6814 | 10614 | check_VecOperations (char *op_string) |
43234a1e L |
10615 | { |
10616 | const reg_entry *mask; | |
10617 | const char *saved; | |
10618 | char *end_op; | |
10619 | ||
f70c6814 | 10620 | while (*op_string) |
43234a1e L |
10621 | { |
10622 | saved = op_string; | |
10623 | if (*op_string == '{') | |
10624 | { | |
10625 | op_string++; | |
10626 | ||
10627 | /* Check broadcasts. */ | |
d34049e8 | 10628 | if (startswith (op_string, "1to")) |
43234a1e | 10629 | { |
5273a3cd | 10630 | unsigned int bcst_type; |
43234a1e | 10631 | |
5273a3cd | 10632 | if (i.broadcast.type) |
43234a1e L |
10633 | goto duplicated_vec_op; |
10634 | ||
10635 | op_string += 3; | |
10636 | if (*op_string == '8') | |
8e6e0792 | 10637 | bcst_type = 8; |
b28d1bda | 10638 | else if (*op_string == '4') |
8e6e0792 | 10639 | bcst_type = 4; |
b28d1bda | 10640 | else if (*op_string == '2') |
8e6e0792 | 10641 | bcst_type = 2; |
43234a1e L |
10642 | else if (*op_string == '1' |
10643 | && *(op_string+1) == '6') | |
10644 | { | |
8e6e0792 | 10645 | bcst_type = 16; |
43234a1e L |
10646 | op_string++; |
10647 | } | |
0cc78721 CL |
10648 | else if (*op_string == '3' |
10649 | && *(op_string+1) == '2') | |
10650 | { | |
10651 | bcst_type = 32; | |
10652 | op_string++; | |
10653 | } | |
43234a1e L |
10654 | else |
10655 | { | |
10656 | as_bad (_("Unsupported broadcast: `%s'"), saved); | |
10657 | return NULL; | |
10658 | } | |
10659 | op_string++; | |
10660 | ||
5273a3cd JB |
10661 | i.broadcast.type = bcst_type; |
10662 | i.broadcast.operand = this_operand; | |
43234a1e L |
10663 | } |
10664 | /* Check masking operation. */ | |
10665 | else if ((mask = parse_register (op_string, &end_op)) != NULL) | |
10666 | { | |
8a6fb3f9 JB |
10667 | if (mask == &bad_reg) |
10668 | return NULL; | |
10669 | ||
43234a1e | 10670 | /* k0 can't be used for write mask. */ |
f74a6307 | 10671 | if (mask->reg_type.bitfield.class != RegMask || !mask->reg_num) |
43234a1e | 10672 | { |
6d2cd6b2 JB |
10673 | as_bad (_("`%s%s' can't be used for write mask"), |
10674 | register_prefix, mask->reg_name); | |
43234a1e L |
10675 | return NULL; |
10676 | } | |
10677 | ||
6225c532 | 10678 | if (!i.mask.reg) |
43234a1e | 10679 | { |
6225c532 JB |
10680 | i.mask.reg = mask; |
10681 | i.mask.operand = this_operand; | |
43234a1e | 10682 | } |
6225c532 JB |
10683 | else if (i.mask.reg->reg_num) |
10684 | goto duplicated_vec_op; | |
43234a1e L |
10685 | else |
10686 | { | |
6225c532 | 10687 | i.mask.reg = mask; |
43234a1e L |
10688 | |
10689 | /* Only "{z}" is allowed here. No need to check | |
10690 | zeroing mask explicitly. */ | |
6225c532 | 10691 | if (i.mask.operand != (unsigned int) this_operand) |
43234a1e L |
10692 | { |
10693 | as_bad (_("invalid write mask `%s'"), saved); | |
10694 | return NULL; | |
10695 | } | |
10696 | } | |
10697 | ||
10698 | op_string = end_op; | |
10699 | } | |
10700 | /* Check zeroing-flag for masking operation. */ | |
10701 | else if (*op_string == 'z') | |
10702 | { | |
6225c532 | 10703 | if (!i.mask.reg) |
43234a1e | 10704 | { |
6225c532 JB |
10705 | i.mask.reg = reg_k0; |
10706 | i.mask.zeroing = 1; | |
10707 | i.mask.operand = this_operand; | |
43234a1e L |
10708 | } |
10709 | else | |
10710 | { | |
6225c532 | 10711 | if (i.mask.zeroing) |
43234a1e L |
10712 | { |
10713 | duplicated_vec_op: | |
10714 | as_bad (_("duplicated `%s'"), saved); | |
10715 | return NULL; | |
10716 | } | |
10717 | ||
6225c532 | 10718 | i.mask.zeroing = 1; |
43234a1e L |
10719 | |
10720 | /* Only "{%k}" is allowed here. No need to check mask | |
10721 | register explicitly. */ | |
6225c532 | 10722 | if (i.mask.operand != (unsigned int) this_operand) |
43234a1e L |
10723 | { |
10724 | as_bad (_("invalid zeroing-masking `%s'"), | |
10725 | saved); | |
10726 | return NULL; | |
10727 | } | |
10728 | } | |
10729 | ||
10730 | op_string++; | |
10731 | } | |
7063667e JB |
10732 | else if (intel_syntax |
10733 | && (op_string = RC_SAE_specifier (op_string)) != NULL) | |
10734 | i.rounding.modifier = true; | |
43234a1e L |
10735 | else |
10736 | goto unknown_vec_op; | |
10737 | ||
10738 | if (*op_string != '}') | |
10739 | { | |
10740 | as_bad (_("missing `}' in `%s'"), saved); | |
10741 | return NULL; | |
10742 | } | |
10743 | op_string++; | |
0ba3a731 L |
10744 | |
10745 | /* Strip whitespace since the addition of pseudo prefixes | |
10746 | changed how the scrubber treats '{'. */ | |
10747 | if (is_space_char (*op_string)) | |
10748 | ++op_string; | |
10749 | ||
43234a1e L |
10750 | continue; |
10751 | } | |
10752 | unknown_vec_op: | |
10753 | /* We don't know this one. */ | |
10754 | as_bad (_("unknown vector operation: `%s'"), saved); | |
10755 | return NULL; | |
10756 | } | |
10757 | ||
6225c532 | 10758 | if (i.mask.reg && i.mask.zeroing && !i.mask.reg->reg_num) |
6d2cd6b2 JB |
10759 | { |
10760 | as_bad (_("zeroing-masking only allowed with write mask")); | |
10761 | return NULL; | |
10762 | } | |
10763 | ||
43234a1e L |
10764 | return op_string; |
10765 | } | |
10766 | ||
252b5132 | 10767 | static int |
70e41ade | 10768 | i386_immediate (char *imm_start) |
252b5132 RH |
10769 | { |
10770 | char *save_input_line_pointer; | |
f3c180ae | 10771 | char *gotfree_input_line; |
252b5132 | 10772 | segT exp_seg = 0; |
47926f60 | 10773 | expressionS *exp; |
40fb9820 L |
10774 | i386_operand_type types; |
10775 | ||
0dfbf9d7 | 10776 | operand_type_set (&types, ~0); |
252b5132 RH |
10777 | |
10778 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
10779 | { | |
31b2323c L |
10780 | as_bad (_("at most %d immediate operands are allowed"), |
10781 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
10782 | return 0; |
10783 | } | |
10784 | ||
10785 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 10786 | i.op[this_operand].imms = exp; |
252b5132 RH |
10787 | |
10788 | if (is_space_char (*imm_start)) | |
10789 | ++imm_start; | |
10790 | ||
10791 | save_input_line_pointer = input_line_pointer; | |
10792 | input_line_pointer = imm_start; | |
10793 | ||
d258b828 | 10794 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
10795 | if (gotfree_input_line) |
10796 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
10797 | |
10798 | exp_seg = expression (exp); | |
10799 | ||
83183c0c | 10800 | SKIP_WHITESPACE (); |
252b5132 | 10801 | if (*input_line_pointer) |
f3c180ae | 10802 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
10803 | |
10804 | input_line_pointer = save_input_line_pointer; | |
f3c180ae | 10805 | if (gotfree_input_line) |
ee86248c JB |
10806 | { |
10807 | free (gotfree_input_line); | |
10808 | ||
9aac24b1 | 10809 | if (exp->X_op == O_constant) |
ee86248c JB |
10810 | exp->X_op = O_illegal; |
10811 | } | |
10812 | ||
9aac24b1 JB |
10813 | if (exp_seg == reg_section) |
10814 | { | |
10815 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
10816 | return 0; | |
10817 | } | |
10818 | ||
ee86248c JB |
10819 | return i386_finalize_immediate (exp_seg, exp, types, imm_start); |
10820 | } | |
252b5132 | 10821 | |
ee86248c JB |
10822 | static int |
10823 | i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
10824 | i386_operand_type types, const char *imm_start) | |
10825 | { | |
10826 | if (exp->X_op == O_absent || exp->X_op == O_illegal || exp->X_op == O_big) | |
252b5132 | 10827 | { |
313c53d1 L |
10828 | if (imm_start) |
10829 | as_bad (_("missing or invalid immediate expression `%s'"), | |
10830 | imm_start); | |
3992d3b7 | 10831 | return 0; |
252b5132 | 10832 | } |
3e73aa7c | 10833 | else if (exp->X_op == O_constant) |
252b5132 | 10834 | { |
47926f60 | 10835 | /* Size it properly later. */ |
40fb9820 | 10836 | i.types[this_operand].bitfield.imm64 = 1; |
a442cac5 JB |
10837 | |
10838 | /* If not 64bit, sign/zero extend val, to account for wraparound | |
10839 | when !BFD64. */ | |
10840 | if (flag_code != CODE_64BIT) | |
10841 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
252b5132 | 10842 | } |
4c63da97 | 10843 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 10844 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 10845 | && exp_seg != absolute_section |
47926f60 | 10846 | && exp_seg != text_section |
24eab124 AM |
10847 | && exp_seg != data_section |
10848 | && exp_seg != bss_section | |
10849 | && exp_seg != undefined_section | |
f86103b7 | 10850 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 10851 | { |
d0b47220 | 10852 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
10853 | return 0; |
10854 | } | |
10855 | #endif | |
10856 | else | |
10857 | { | |
10858 | /* This is an address. The size of the address will be | |
24eab124 | 10859 | determined later, depending on destination register, |
3e73aa7c | 10860 | suffix, or the default for the section. */ |
40fb9820 L |
10861 | i.types[this_operand].bitfield.imm8 = 1; |
10862 | i.types[this_operand].bitfield.imm16 = 1; | |
10863 | i.types[this_operand].bitfield.imm32 = 1; | |
10864 | i.types[this_operand].bitfield.imm32s = 1; | |
10865 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
10866 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
10867 | types); | |
252b5132 RH |
10868 | } |
10869 | ||
10870 | return 1; | |
10871 | } | |
10872 | ||
551c1ca1 | 10873 | static char * |
e3bb37b5 | 10874 | i386_scale (char *scale) |
252b5132 | 10875 | { |
551c1ca1 AM |
10876 | offsetT val; |
10877 | char *save = input_line_pointer; | |
252b5132 | 10878 | |
551c1ca1 AM |
10879 | input_line_pointer = scale; |
10880 | val = get_absolute_expression (); | |
10881 | ||
10882 | switch (val) | |
252b5132 | 10883 | { |
551c1ca1 | 10884 | case 1: |
252b5132 RH |
10885 | i.log2_scale_factor = 0; |
10886 | break; | |
551c1ca1 | 10887 | case 2: |
252b5132 RH |
10888 | i.log2_scale_factor = 1; |
10889 | break; | |
551c1ca1 | 10890 | case 4: |
252b5132 RH |
10891 | i.log2_scale_factor = 2; |
10892 | break; | |
551c1ca1 | 10893 | case 8: |
252b5132 RH |
10894 | i.log2_scale_factor = 3; |
10895 | break; | |
10896 | default: | |
a724f0f4 JB |
10897 | { |
10898 | char sep = *input_line_pointer; | |
10899 | ||
10900 | *input_line_pointer = '\0'; | |
10901 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
10902 | scale); | |
10903 | *input_line_pointer = sep; | |
10904 | input_line_pointer = save; | |
10905 | return NULL; | |
10906 | } | |
252b5132 | 10907 | } |
29b0f896 | 10908 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
10909 | { |
10910 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 10911 | 1 << i.log2_scale_factor); |
252b5132 | 10912 | i.log2_scale_factor = 0; |
252b5132 | 10913 | } |
551c1ca1 AM |
10914 | scale = input_line_pointer; |
10915 | input_line_pointer = save; | |
10916 | return scale; | |
252b5132 RH |
10917 | } |
10918 | ||
252b5132 | 10919 | static int |
e3bb37b5 | 10920 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 10921 | { |
29b0f896 | 10922 | expressionS *exp; |
252b5132 RH |
10923 | segT exp_seg = 0; |
10924 | char *save_input_line_pointer; | |
f3c180ae | 10925 | char *gotfree_input_line; |
40fb9820 L |
10926 | int override; |
10927 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 10928 | int ret; |
252b5132 | 10929 | |
31b2323c L |
10930 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
10931 | { | |
10932 | as_bad (_("at most %d displacement operands are allowed"), | |
10933 | MAX_MEMORY_OPERANDS); | |
10934 | return 0; | |
10935 | } | |
10936 | ||
0dfbf9d7 | 10937 | operand_type_set (&bigdisp, 0); |
6f2f06be | 10938 | if (i.jumpabsolute |
48bcea9f | 10939 | || i.types[this_operand].bitfield.baseindex |
0cfa3eb3 JB |
10940 | || (current_templates->start->opcode_modifier.jump != JUMP |
10941 | && current_templates->start->opcode_modifier.jump != JUMP_DWORD)) | |
e05278af | 10942 | { |
48bcea9f | 10943 | i386_addressing_mode (); |
e05278af | 10944 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
10945 | if (flag_code == CODE_64BIT) |
10946 | { | |
a775efc8 | 10947 | bigdisp.bitfield.disp32 = 1; |
40fb9820 | 10948 | if (!override) |
a775efc8 | 10949 | bigdisp.bitfield.disp64 = 1; |
40fb9820 L |
10950 | } |
10951 | else if ((flag_code == CODE_16BIT) ^ override) | |
40fb9820 | 10952 | bigdisp.bitfield.disp16 = 1; |
48bcea9f JB |
10953 | else |
10954 | bigdisp.bitfield.disp32 = 1; | |
e05278af JB |
10955 | } |
10956 | else | |
10957 | { | |
376cd056 JB |
10958 | /* For PC-relative branches, the width of the displacement may be |
10959 | dependent upon data size, but is never dependent upon address size. | |
10960 | Also make sure to not unintentionally match against a non-PC-relative | |
10961 | branch template. */ | |
10962 | static templates aux_templates; | |
10963 | const insn_template *t = current_templates->start; | |
5b7c81bd | 10964 | bool has_intel64 = false; |
376cd056 JB |
10965 | |
10966 | aux_templates.start = t; | |
10967 | while (++t < current_templates->end) | |
10968 | { | |
10969 | if (t->opcode_modifier.jump | |
10970 | != current_templates->start->opcode_modifier.jump) | |
10971 | break; | |
4b5aaf5f | 10972 | if ((t->opcode_modifier.isa64 >= INTEL64)) |
5b7c81bd | 10973 | has_intel64 = true; |
376cd056 JB |
10974 | } |
10975 | if (t < current_templates->end) | |
10976 | { | |
10977 | aux_templates.end = t; | |
10978 | current_templates = &aux_templates; | |
10979 | } | |
10980 | ||
e05278af | 10981 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
10982 | if (flag_code == CODE_64BIT) |
10983 | { | |
376cd056 JB |
10984 | if ((override || i.suffix == WORD_MNEM_SUFFIX) |
10985 | && (!intel64 || !has_intel64)) | |
40fb9820 L |
10986 | bigdisp.bitfield.disp16 = 1; |
10987 | else | |
a775efc8 | 10988 | bigdisp.bitfield.disp32 = 1; |
40fb9820 L |
10989 | } |
10990 | else | |
e05278af JB |
10991 | { |
10992 | if (!override) | |
10993 | override = (i.suffix == (flag_code != CODE_16BIT | |
10994 | ? WORD_MNEM_SUFFIX | |
10995 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
10996 | bigdisp.bitfield.disp32 = 1; |
10997 | if ((flag_code == CODE_16BIT) ^ override) | |
10998 | { | |
10999 | bigdisp.bitfield.disp32 = 0; | |
11000 | bigdisp.bitfield.disp16 = 1; | |
11001 | } | |
e05278af | 11002 | } |
e05278af | 11003 | } |
c6fb90c8 L |
11004 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
11005 | bigdisp); | |
252b5132 RH |
11006 | |
11007 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 11008 | i.op[this_operand].disps = exp; |
252b5132 RH |
11009 | i.disp_operands++; |
11010 | save_input_line_pointer = input_line_pointer; | |
11011 | input_line_pointer = disp_start; | |
11012 | END_STRING_AND_SAVE (disp_end); | |
11013 | ||
11014 | #ifndef GCC_ASM_O_HACK | |
11015 | #define GCC_ASM_O_HACK 0 | |
11016 | #endif | |
11017 | #if GCC_ASM_O_HACK | |
11018 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 11019 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 11020 | && displacement_string_end[-1] == '+') |
252b5132 RH |
11021 | { |
11022 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
11023 | constraint within gcc asm statements. |
11024 | For instance: | |
11025 | ||
11026 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
11027 | __asm__ __volatile__ ( \ | |
11028 | "movw %w2,%0\n\t" \ | |
11029 | "movw %w1,2+%0\n\t" \ | |
11030 | "rorl $16,%1\n\t" \ | |
11031 | "movb %b1,4+%0\n\t" \ | |
11032 | "movb %4,5+%0\n\t" \ | |
11033 | "movb $0,6+%0\n\t" \ | |
11034 | "movb %h1,7+%0\n\t" \ | |
11035 | "rorl $16,%1" \ | |
11036 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
11037 | ||
11038 | This works great except that the output assembler ends | |
11039 | up looking a bit weird if it turns out that there is | |
11040 | no offset. You end up producing code that looks like: | |
11041 | ||
11042 | #APP | |
11043 | movw $235,(%eax) | |
11044 | movw %dx,2+(%eax) | |
11045 | rorl $16,%edx | |
11046 | movb %dl,4+(%eax) | |
11047 | movb $137,5+(%eax) | |
11048 | movb $0,6+(%eax) | |
11049 | movb %dh,7+(%eax) | |
11050 | rorl $16,%edx | |
11051 | #NO_APP | |
11052 | ||
47926f60 | 11053 | So here we provide the missing zero. */ |
24eab124 AM |
11054 | |
11055 | *displacement_string_end = '0'; | |
252b5132 RH |
11056 | } |
11057 | #endif | |
d258b828 | 11058 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
11059 | if (gotfree_input_line) |
11060 | input_line_pointer = gotfree_input_line; | |
252b5132 | 11061 | |
24eab124 | 11062 | exp_seg = expression (exp); |
252b5132 | 11063 | |
636c26b0 AM |
11064 | SKIP_WHITESPACE (); |
11065 | if (*input_line_pointer) | |
11066 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
11067 | #if GCC_ASM_O_HACK | |
11068 | RESTORE_END_STRING (disp_end + 1); | |
11069 | #endif | |
636c26b0 | 11070 | input_line_pointer = save_input_line_pointer; |
636c26b0 | 11071 | if (gotfree_input_line) |
ee86248c JB |
11072 | { |
11073 | free (gotfree_input_line); | |
11074 | ||
11075 | if (exp->X_op == O_constant || exp->X_op == O_register) | |
11076 | exp->X_op = O_illegal; | |
11077 | } | |
11078 | ||
11079 | ret = i386_finalize_displacement (exp_seg, exp, types, disp_start); | |
11080 | ||
11081 | RESTORE_END_STRING (disp_end); | |
11082 | ||
11083 | return ret; | |
11084 | } | |
11085 | ||
11086 | static int | |
11087 | i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
11088 | i386_operand_type types, const char *disp_start) | |
11089 | { | |
ee86248c | 11090 | int ret = 1; |
636c26b0 | 11091 | |
24eab124 AM |
11092 | /* We do this to make sure that the section symbol is in |
11093 | the symbol table. We will ultimately change the relocation | |
47926f60 | 11094 | to be relative to the beginning of the section. */ |
1ae12ab7 | 11095 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
11096 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
11097 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 11098 | { |
636c26b0 | 11099 | if (exp->X_op != O_symbol) |
3992d3b7 | 11100 | goto inv_disp; |
636c26b0 | 11101 | |
e5cb08ac | 11102 | if (S_IS_LOCAL (exp->X_add_symbol) |
c64efb4b L |
11103 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section |
11104 | && S_GET_SEGMENT (exp->X_add_symbol) != expr_section) | |
24eab124 | 11105 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); |
24eab124 AM |
11106 | exp->X_op = O_subtract; |
11107 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 11108 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 11109 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
11110 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
11111 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 11112 | else |
29b0f896 | 11113 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 11114 | } |
252b5132 | 11115 | |
3992d3b7 AM |
11116 | else if (exp->X_op == O_absent |
11117 | || exp->X_op == O_illegal | |
ee86248c | 11118 | || exp->X_op == O_big) |
2daf4fd8 | 11119 | { |
3992d3b7 AM |
11120 | inv_disp: |
11121 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 11122 | disp_start); |
3992d3b7 | 11123 | ret = 0; |
2daf4fd8 AM |
11124 | } |
11125 | ||
a50187b2 JB |
11126 | else if (exp->X_op == O_constant) |
11127 | { | |
11128 | /* Sizing gets taken care of by optimize_disp(). | |
11129 | ||
11130 | If not 64bit, sign/zero extend val, to account for wraparound | |
11131 | when !BFD64. */ | |
11132 | if (flag_code != CODE_64BIT) | |
11133 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
11134 | } | |
11135 | ||
4c63da97 | 11136 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
a50187b2 | 11137 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
3992d3b7 AM |
11138 | && exp_seg != absolute_section |
11139 | && exp_seg != text_section | |
11140 | && exp_seg != data_section | |
11141 | && exp_seg != bss_section | |
11142 | && exp_seg != undefined_section | |
11143 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 11144 | { |
d0b47220 | 11145 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 11146 | ret = 0; |
24eab124 | 11147 | } |
252b5132 | 11148 | #endif |
3956db08 | 11149 | |
a50187b2 | 11150 | else if (current_templates->start->opcode_modifier.jump == JUMP_BYTE) |
48bcea9f JB |
11151 | i.types[this_operand].bitfield.disp8 = 1; |
11152 | ||
40fb9820 | 11153 | /* Check if this is a displacement only operand. */ |
02b83698 JB |
11154 | if (!i.types[this_operand].bitfield.baseindex) |
11155 | i.types[this_operand] = | |
11156 | operand_type_or (operand_type_and_not (i.types[this_operand], anydisp), | |
11157 | operand_type_and (i.types[this_operand], types)); | |
3956db08 | 11158 | |
3992d3b7 | 11159 | return ret; |
252b5132 RH |
11160 | } |
11161 | ||
2abc2bec JB |
11162 | /* Return the active addressing mode, taking address override and |
11163 | registers forming the address into consideration. Update the | |
11164 | address override prefix if necessary. */ | |
47926f60 | 11165 | |
2abc2bec JB |
11166 | static enum flag_code |
11167 | i386_addressing_mode (void) | |
252b5132 | 11168 | { |
be05d201 L |
11169 | enum flag_code addr_mode; |
11170 | ||
11171 | if (i.prefix[ADDR_PREFIX]) | |
11172 | addr_mode = flag_code == CODE_32BIT ? CODE_16BIT : CODE_32BIT; | |
a23b33b3 JB |
11173 | else if (flag_code == CODE_16BIT |
11174 | && current_templates->start->cpu_flags.bitfield.cpumpx | |
11175 | /* Avoid replacing the "16-bit addressing not allowed" diagnostic | |
11176 | from md_assemble() by "is not a valid base/index expression" | |
11177 | when there is a base and/or index. */ | |
11178 | && !i.types[this_operand].bitfield.baseindex) | |
11179 | { | |
11180 | /* MPX insn memory operands with neither base nor index must be forced | |
11181 | to use 32-bit addressing in 16-bit mode. */ | |
11182 | addr_mode = CODE_32BIT; | |
11183 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
11184 | ++i.prefixes; | |
11185 | gas_assert (!i.types[this_operand].bitfield.disp16); | |
11186 | gas_assert (!i.types[this_operand].bitfield.disp32); | |
11187 | } | |
be05d201 L |
11188 | else |
11189 | { | |
11190 | addr_mode = flag_code; | |
11191 | ||
24eab124 | 11192 | #if INFER_ADDR_PREFIX |
be05d201 L |
11193 | if (i.mem_operands == 0) |
11194 | { | |
11195 | /* Infer address prefix from the first memory operand. */ | |
11196 | const reg_entry *addr_reg = i.base_reg; | |
11197 | ||
11198 | if (addr_reg == NULL) | |
11199 | addr_reg = i.index_reg; | |
eecb386c | 11200 | |
be05d201 L |
11201 | if (addr_reg) |
11202 | { | |
e968fc9b | 11203 | if (addr_reg->reg_type.bitfield.dword) |
be05d201 L |
11204 | addr_mode = CODE_32BIT; |
11205 | else if (flag_code != CODE_64BIT | |
dc821c5f | 11206 | && addr_reg->reg_type.bitfield.word) |
be05d201 L |
11207 | addr_mode = CODE_16BIT; |
11208 | ||
11209 | if (addr_mode != flag_code) | |
11210 | { | |
11211 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
11212 | i.prefixes += 1; | |
11213 | /* Change the size of any displacement too. At most one | |
11214 | of Disp16 or Disp32 is set. | |
11215 | FIXME. There doesn't seem to be any real need for | |
11216 | separate Disp16 and Disp32 flags. The same goes for | |
11217 | Imm16 and Imm32. Removing them would probably clean | |
11218 | up the code quite a lot. */ | |
11219 | if (flag_code != CODE_64BIT | |
11220 | && (i.types[this_operand].bitfield.disp16 | |
11221 | || i.types[this_operand].bitfield.disp32)) | |
11222 | i.types[this_operand] | |
11223 | = operand_type_xor (i.types[this_operand], disp16_32); | |
11224 | } | |
11225 | } | |
11226 | } | |
24eab124 | 11227 | #endif |
be05d201 L |
11228 | } |
11229 | ||
2abc2bec JB |
11230 | return addr_mode; |
11231 | } | |
11232 | ||
11233 | /* Make sure the memory operand we've been dealt is valid. | |
11234 | Return 1 on success, 0 on a failure. */ | |
11235 | ||
11236 | static int | |
11237 | i386_index_check (const char *operand_string) | |
11238 | { | |
11239 | const char *kind = "base/index"; | |
11240 | enum flag_code addr_mode = i386_addressing_mode (); | |
a152332d | 11241 | const insn_template *t = current_templates->start; |
2abc2bec | 11242 | |
a152332d | 11243 | if (t->opcode_modifier.isstring |
fc0763e6 JB |
11244 | && (current_templates->end[-1].opcode_modifier.isstring |
11245 | || i.mem_operands)) | |
11246 | { | |
11247 | /* Memory operands of string insns are special in that they only allow | |
11248 | a single register (rDI, rSI, or rBX) as their memory address. */ | |
be05d201 L |
11249 | const reg_entry *expected_reg; |
11250 | static const char *di_si[][2] = | |
11251 | { | |
11252 | { "esi", "edi" }, | |
11253 | { "si", "di" }, | |
11254 | { "rsi", "rdi" } | |
11255 | }; | |
11256 | static const char *bx[] = { "ebx", "bx", "rbx" }; | |
fc0763e6 JB |
11257 | |
11258 | kind = "string address"; | |
11259 | ||
a152332d | 11260 | if (t->opcode_modifier.prefixok == PrefixRep) |
fc0763e6 | 11261 | { |
51c8edf6 JB |
11262 | int es_op = current_templates->end[-1].opcode_modifier.isstring |
11263 | - IS_STRING_ES_OP0; | |
11264 | int op = 0; | |
fc0763e6 | 11265 | |
51c8edf6 | 11266 | if (!current_templates->end[-1].operand_types[0].bitfield.baseindex |
fc0763e6 JB |
11267 | || ((!i.mem_operands != !intel_syntax) |
11268 | && current_templates->end[-1].operand_types[1] | |
11269 | .bitfield.baseindex)) | |
51c8edf6 | 11270 | op = 1; |
fe0e921f AM |
11271 | expected_reg |
11272 | = (const reg_entry *) str_hash_find (reg_hash, | |
11273 | di_si[addr_mode][op == es_op]); | |
fc0763e6 JB |
11274 | } |
11275 | else | |
fe0e921f AM |
11276 | expected_reg |
11277 | = (const reg_entry *)str_hash_find (reg_hash, bx[addr_mode]); | |
fc0763e6 | 11278 | |
be05d201 L |
11279 | if (i.base_reg != expected_reg |
11280 | || i.index_reg | |
fc0763e6 | 11281 | || operand_type_check (i.types[this_operand], disp)) |
fc0763e6 | 11282 | { |
be05d201 L |
11283 | /* The second memory operand must have the same size as |
11284 | the first one. */ | |
11285 | if (i.mem_operands | |
11286 | && i.base_reg | |
11287 | && !((addr_mode == CODE_64BIT | |
dc821c5f | 11288 | && i.base_reg->reg_type.bitfield.qword) |
be05d201 | 11289 | || (addr_mode == CODE_32BIT |
dc821c5f JB |
11290 | ? i.base_reg->reg_type.bitfield.dword |
11291 | : i.base_reg->reg_type.bitfield.word))) | |
be05d201 L |
11292 | goto bad_address; |
11293 | ||
fc0763e6 JB |
11294 | as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"), |
11295 | operand_string, | |
11296 | intel_syntax ? '[' : '(', | |
11297 | register_prefix, | |
be05d201 | 11298 | expected_reg->reg_name, |
fc0763e6 | 11299 | intel_syntax ? ']' : ')'); |
be05d201 | 11300 | return 1; |
fc0763e6 | 11301 | } |
be05d201 L |
11302 | else |
11303 | return 1; | |
11304 | ||
dc1e8a47 | 11305 | bad_address: |
be05d201 L |
11306 | as_bad (_("`%s' is not a valid %s expression"), |
11307 | operand_string, kind); | |
11308 | return 0; | |
3e73aa7c JH |
11309 | } |
11310 | else | |
11311 | { | |
be05d201 L |
11312 | if (addr_mode != CODE_16BIT) |
11313 | { | |
11314 | /* 32-bit/64-bit checks. */ | |
41eb8e88 L |
11315 | if (i.disp_encoding == disp_encoding_16bit) |
11316 | { | |
11317 | bad_disp: | |
11318 | as_bad (_("invalid `%s' prefix"), | |
11319 | addr_mode == CODE_16BIT ? "{disp32}" : "{disp16}"); | |
11320 | return 0; | |
11321 | } | |
11322 | ||
be05d201 | 11323 | if ((i.base_reg |
e968fc9b JB |
11324 | && ((addr_mode == CODE_64BIT |
11325 | ? !i.base_reg->reg_type.bitfield.qword | |
11326 | : !i.base_reg->reg_type.bitfield.dword) | |
11327 | || (i.index_reg && i.base_reg->reg_num == RegIP) | |
11328 | || i.base_reg->reg_num == RegIZ)) | |
be05d201 | 11329 | || (i.index_reg |
1b54b8d7 JB |
11330 | && !i.index_reg->reg_type.bitfield.xmmword |
11331 | && !i.index_reg->reg_type.bitfield.ymmword | |
11332 | && !i.index_reg->reg_type.bitfield.zmmword | |
be05d201 | 11333 | && ((addr_mode == CODE_64BIT |
e968fc9b JB |
11334 | ? !i.index_reg->reg_type.bitfield.qword |
11335 | : !i.index_reg->reg_type.bitfield.dword) | |
be05d201 L |
11336 | || !i.index_reg->reg_type.bitfield.baseindex))) |
11337 | goto bad_address; | |
8178be5b | 11338 | |
260cd341 | 11339 | /* bndmk, bndldx, bndstx and mandatory non-vector SIB have special restrictions. */ |
a152332d | 11340 | if ((t->opcode_modifier.opcodeprefix == PREFIX_0XF3 |
389d00a5 JB |
11341 | && t->opcode_modifier.opcodespace == SPACE_0F |
11342 | && t->base_opcode == 0x1b) | |
a152332d | 11343 | || (t->opcode_modifier.opcodeprefix == PREFIX_NONE |
389d00a5 JB |
11344 | && t->opcode_modifier.opcodespace == SPACE_0F |
11345 | && (t->base_opcode & ~1) == 0x1a) | |
a152332d | 11346 | || t->opcode_modifier.sib == SIBMEM) |
8178be5b JB |
11347 | { |
11348 | /* They cannot use RIP-relative addressing. */ | |
e968fc9b | 11349 | if (i.base_reg && i.base_reg->reg_num == RegIP) |
8178be5b JB |
11350 | { |
11351 | as_bad (_("`%s' cannot be used here"), operand_string); | |
11352 | return 0; | |
11353 | } | |
11354 | ||
11355 | /* bndldx and bndstx ignore their scale factor. */ | |
a152332d | 11356 | if (t->opcode_modifier.opcodeprefix == PREFIX_NONE |
389d00a5 JB |
11357 | && t->opcode_modifier.opcodespace == SPACE_0F |
11358 | && (t->base_opcode & ~1) == 0x1a | |
8178be5b JB |
11359 | && i.log2_scale_factor) |
11360 | as_warn (_("register scaling is being ignored here")); | |
11361 | } | |
be05d201 L |
11362 | } |
11363 | else | |
3e73aa7c | 11364 | { |
be05d201 | 11365 | /* 16-bit checks. */ |
41eb8e88 L |
11366 | if (i.disp_encoding == disp_encoding_32bit) |
11367 | goto bad_disp; | |
11368 | ||
3e73aa7c | 11369 | if ((i.base_reg |
dc821c5f | 11370 | && (!i.base_reg->reg_type.bitfield.word |
40fb9820 | 11371 | || !i.base_reg->reg_type.bitfield.baseindex)) |
3e73aa7c | 11372 | || (i.index_reg |
dc821c5f | 11373 | && (!i.index_reg->reg_type.bitfield.word |
40fb9820 | 11374 | || !i.index_reg->reg_type.bitfield.baseindex |
29b0f896 AM |
11375 | || !(i.base_reg |
11376 | && i.base_reg->reg_num < 6 | |
11377 | && i.index_reg->reg_num >= 6 | |
11378 | && i.log2_scale_factor == 0)))) | |
be05d201 | 11379 | goto bad_address; |
3e73aa7c JH |
11380 | } |
11381 | } | |
be05d201 | 11382 | return 1; |
24eab124 | 11383 | } |
252b5132 | 11384 | |
43234a1e L |
11385 | /* Handle vector immediates. */ |
11386 | ||
11387 | static int | |
11388 | RC_SAE_immediate (const char *imm_start) | |
11389 | { | |
43234a1e | 11390 | const char *pstr = imm_start; |
43234a1e L |
11391 | |
11392 | if (*pstr != '{') | |
11393 | return 0; | |
11394 | ||
7063667e JB |
11395 | pstr = RC_SAE_specifier (pstr + 1); |
11396 | if (pstr == NULL) | |
43234a1e L |
11397 | return 0; |
11398 | ||
11399 | if (*pstr++ != '}') | |
11400 | { | |
11401 | as_bad (_("Missing '}': '%s'"), imm_start); | |
11402 | return 0; | |
11403 | } | |
11404 | /* RC/SAE immediate string should contain nothing more. */; | |
11405 | if (*pstr != 0) | |
11406 | { | |
11407 | as_bad (_("Junk after '}': '%s'"), imm_start); | |
11408 | return 0; | |
11409 | } | |
11410 | ||
cf665fee JB |
11411 | /* Internally this doesn't count as an operand. */ |
11412 | --i.operands; | |
43234a1e | 11413 | |
43234a1e L |
11414 | return 1; |
11415 | } | |
11416 | ||
8325cc63 JB |
11417 | /* Only string instructions can have a second memory operand, so |
11418 | reduce current_templates to just those if it contains any. */ | |
11419 | static int | |
11420 | maybe_adjust_templates (void) | |
11421 | { | |
11422 | const insn_template *t; | |
11423 | ||
11424 | gas_assert (i.mem_operands == 1); | |
11425 | ||
11426 | for (t = current_templates->start; t < current_templates->end; ++t) | |
11427 | if (t->opcode_modifier.isstring) | |
11428 | break; | |
11429 | ||
11430 | if (t < current_templates->end) | |
11431 | { | |
11432 | static templates aux_templates; | |
5b7c81bd | 11433 | bool recheck; |
8325cc63 JB |
11434 | |
11435 | aux_templates.start = t; | |
11436 | for (; t < current_templates->end; ++t) | |
11437 | if (!t->opcode_modifier.isstring) | |
11438 | break; | |
11439 | aux_templates.end = t; | |
11440 | ||
11441 | /* Determine whether to re-check the first memory operand. */ | |
11442 | recheck = (aux_templates.start != current_templates->start | |
11443 | || t != current_templates->end); | |
11444 | ||
11445 | current_templates = &aux_templates; | |
11446 | ||
11447 | if (recheck) | |
11448 | { | |
11449 | i.mem_operands = 0; | |
11450 | if (i.memop1_string != NULL | |
11451 | && i386_index_check (i.memop1_string) == 0) | |
11452 | return 0; | |
11453 | i.mem_operands = 1; | |
11454 | } | |
11455 | } | |
11456 | ||
11457 | return 1; | |
11458 | } | |
11459 | ||
9d299bea JB |
11460 | static INLINE bool starts_memory_operand (char c) |
11461 | { | |
014fbcda | 11462 | return ISDIGIT (c) |
9d299bea | 11463 | || is_identifier_char (c) |
014fbcda | 11464 | || strchr ("([\"+-!~", c); |
9d299bea JB |
11465 | } |
11466 | ||
fc0763e6 | 11467 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero |
47926f60 | 11468 | on error. */ |
252b5132 | 11469 | |
252b5132 | 11470 | static int |
a7619375 | 11471 | i386_att_operand (char *operand_string) |
252b5132 | 11472 | { |
af6bdddf AM |
11473 | const reg_entry *r; |
11474 | char *end_op; | |
24eab124 | 11475 | char *op_string = operand_string; |
252b5132 | 11476 | |
24eab124 | 11477 | if (is_space_char (*op_string)) |
252b5132 RH |
11478 | ++op_string; |
11479 | ||
24eab124 | 11480 | /* We check for an absolute prefix (differentiating, |
47926f60 | 11481 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
11482 | if (*op_string == ABSOLUTE_PREFIX) |
11483 | { | |
11484 | ++op_string; | |
11485 | if (is_space_char (*op_string)) | |
11486 | ++op_string; | |
5b7c81bd | 11487 | i.jumpabsolute = true; |
24eab124 | 11488 | } |
252b5132 | 11489 | |
47926f60 | 11490 | /* Check if operand is a register. */ |
4d1bb795 | 11491 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 11492 | { |
40fb9820 L |
11493 | i386_operand_type temp; |
11494 | ||
8a6fb3f9 JB |
11495 | if (r == &bad_reg) |
11496 | return 0; | |
11497 | ||
24eab124 AM |
11498 | /* Check for a segment override by searching for ':' after a |
11499 | segment register. */ | |
11500 | op_string = end_op; | |
11501 | if (is_space_char (*op_string)) | |
11502 | ++op_string; | |
00cee14f | 11503 | if (*op_string == ':' && r->reg_type.bitfield.class == SReg) |
24eab124 | 11504 | { |
5e042380 | 11505 | i.seg[i.mem_operands] = r; |
252b5132 | 11506 | |
24eab124 | 11507 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
11508 | ++op_string; |
11509 | if (is_space_char (*op_string)) | |
24eab124 | 11510 | ++op_string; |
252b5132 | 11511 | |
47926f60 | 11512 | /* Handle case of %es:*foo. */ |
c8d541e2 | 11513 | if (!i.jumpabsolute && *op_string == ABSOLUTE_PREFIX) |
24eab124 AM |
11514 | { |
11515 | ++op_string; | |
11516 | if (is_space_char (*op_string)) | |
11517 | ++op_string; | |
5b7c81bd | 11518 | i.jumpabsolute = true; |
24eab124 | 11519 | } |
c8d541e2 | 11520 | |
9d299bea | 11521 | if (!starts_memory_operand (*op_string)) |
c8d541e2 JB |
11522 | { |
11523 | as_bad (_("bad memory operand `%s'"), op_string); | |
11524 | return 0; | |
11525 | } | |
24eab124 AM |
11526 | goto do_memory_reference; |
11527 | } | |
43234a1e L |
11528 | |
11529 | /* Handle vector operations. */ | |
11530 | if (*op_string == '{') | |
11531 | { | |
f70c6814 | 11532 | op_string = check_VecOperations (op_string); |
43234a1e L |
11533 | if (op_string == NULL) |
11534 | return 0; | |
11535 | } | |
11536 | ||
24eab124 AM |
11537 | if (*op_string) |
11538 | { | |
d0b47220 | 11539 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
11540 | return 0; |
11541 | } | |
40fb9820 L |
11542 | temp = r->reg_type; |
11543 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
11544 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
11545 | temp); | |
7d5e4556 | 11546 | i.types[this_operand].bitfield.unspecified = 0; |
520dc8e8 | 11547 | i.op[this_operand].regs = r; |
24eab124 | 11548 | i.reg_operands++; |
cf665fee JB |
11549 | |
11550 | /* A GPR may follow an RC or SAE immediate only if a (vector) register | |
11551 | operand was also present earlier on. */ | |
11552 | if (i.rounding.type != rc_none && temp.bitfield.class == Reg | |
11553 | && i.reg_operands == 1) | |
11554 | { | |
11555 | unsigned int j; | |
11556 | ||
11557 | for (j = 0; j < ARRAY_SIZE (RC_NamesTable); ++j) | |
11558 | if (i.rounding.type == RC_NamesTable[j].type) | |
11559 | break; | |
11560 | as_bad (_("`%s': misplaced `{%s}'"), | |
11561 | current_templates->start->name, RC_NamesTable[j].name); | |
11562 | return 0; | |
11563 | } | |
24eab124 | 11564 | } |
af6bdddf AM |
11565 | else if (*op_string == REGISTER_PREFIX) |
11566 | { | |
11567 | as_bad (_("bad register name `%s'"), op_string); | |
11568 | return 0; | |
11569 | } | |
24eab124 | 11570 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 11571 | { |
24eab124 | 11572 | ++op_string; |
6f2f06be | 11573 | if (i.jumpabsolute) |
24eab124 | 11574 | { |
d0b47220 | 11575 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
11576 | return 0; |
11577 | } | |
11578 | if (!i386_immediate (op_string)) | |
11579 | return 0; | |
cf665fee JB |
11580 | if (i.rounding.type != rc_none) |
11581 | { | |
11582 | as_bad (_("`%s': RC/SAE operand must follow immediate operands"), | |
11583 | current_templates->start->name); | |
11584 | return 0; | |
11585 | } | |
24eab124 | 11586 | } |
43234a1e L |
11587 | else if (RC_SAE_immediate (operand_string)) |
11588 | { | |
cf665fee JB |
11589 | /* If it is a RC or SAE immediate, do the necessary placement check: |
11590 | Only another immediate or a GPR may precede it. */ | |
11591 | if (i.mem_operands || i.reg_operands + i.imm_operands > 1 | |
11592 | || (i.reg_operands == 1 | |
11593 | && i.op[0].regs->reg_type.bitfield.class != Reg)) | |
11594 | { | |
11595 | as_bad (_("`%s': misplaced `%s'"), | |
11596 | current_templates->start->name, operand_string); | |
11597 | return 0; | |
11598 | } | |
43234a1e | 11599 | } |
9d299bea | 11600 | else if (starts_memory_operand (*op_string)) |
24eab124 | 11601 | { |
47926f60 | 11602 | /* This is a memory reference of some sort. */ |
af6bdddf | 11603 | char *base_string; |
252b5132 | 11604 | |
47926f60 | 11605 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
11606 | char *displacement_string_start; |
11607 | char *displacement_string_end; | |
252b5132 | 11608 | |
24eab124 | 11609 | do_memory_reference: |
8325cc63 JB |
11610 | if (i.mem_operands == 1 && !maybe_adjust_templates ()) |
11611 | return 0; | |
24eab124 | 11612 | if ((i.mem_operands == 1 |
40fb9820 | 11613 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
11614 | || i.mem_operands == 2) |
11615 | { | |
11616 | as_bad (_("too many memory references for `%s'"), | |
11617 | current_templates->start->name); | |
11618 | return 0; | |
11619 | } | |
252b5132 | 11620 | |
24eab124 AM |
11621 | /* Check for base index form. We detect the base index form by |
11622 | looking for an ')' at the end of the operand, searching | |
11623 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
11624 | after the '('. */ | |
af6bdddf | 11625 | base_string = op_string + strlen (op_string); |
c3332e24 | 11626 | |
43234a1e | 11627 | /* Handle vector operations. */ |
6b5ba0d4 JB |
11628 | --base_string; |
11629 | if (is_space_char (*base_string)) | |
11630 | --base_string; | |
11631 | ||
11632 | if (*base_string == '}') | |
43234a1e | 11633 | { |
6b5ba0d4 JB |
11634 | char *vop_start = NULL; |
11635 | ||
11636 | while (base_string-- > op_string) | |
11637 | { | |
11638 | if (*base_string == '"') | |
11639 | break; | |
11640 | if (*base_string != '{') | |
11641 | continue; | |
11642 | ||
11643 | vop_start = base_string; | |
11644 | ||
11645 | --base_string; | |
11646 | if (is_space_char (*base_string)) | |
11647 | --base_string; | |
11648 | ||
11649 | if (*base_string != '}') | |
11650 | break; | |
11651 | ||
11652 | vop_start = NULL; | |
11653 | } | |
11654 | ||
11655 | if (!vop_start) | |
11656 | { | |
11657 | as_bad (_("unbalanced figure braces")); | |
11658 | return 0; | |
11659 | } | |
11660 | ||
f70c6814 | 11661 | if (check_VecOperations (vop_start) == NULL) |
43234a1e | 11662 | return 0; |
43234a1e L |
11663 | } |
11664 | ||
47926f60 | 11665 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
11666 | displacement_string_start = op_string; |
11667 | displacement_string_end = base_string + 1; | |
252b5132 | 11668 | |
24eab124 AM |
11669 | if (*base_string == ')') |
11670 | { | |
af6bdddf | 11671 | char *temp_string; |
e87fb6a6 JB |
11672 | unsigned int parens_not_balanced = 0; |
11673 | bool in_quotes = false; | |
e68c3d59 | 11674 | |
24eab124 | 11675 | /* We've already checked that the number of left & right ()'s are |
e87fb6a6 JB |
11676 | equal, and that there's a matching set of double quotes. */ |
11677 | end_op = base_string; | |
11678 | for (temp_string = op_string; temp_string < end_op; temp_string++) | |
24eab124 | 11679 | { |
e87fb6a6 JB |
11680 | if (*temp_string == '\\' && temp_string[1] == '"') |
11681 | ++temp_string; | |
11682 | else if (*temp_string == '"') | |
11683 | in_quotes = !in_quotes; | |
11684 | else if (!in_quotes) | |
11685 | { | |
11686 | if (*temp_string == '(' && !parens_not_balanced++) | |
11687 | base_string = temp_string; | |
11688 | if (*temp_string == ')') | |
11689 | --parens_not_balanced; | |
11690 | } | |
24eab124 | 11691 | } |
c3332e24 | 11692 | |
af6bdddf | 11693 | temp_string = base_string; |
c3332e24 | 11694 | |
24eab124 | 11695 | /* Skip past '(' and whitespace. */ |
e87fb6a6 JB |
11696 | gas_assert (*base_string == '('); |
11697 | ++base_string; | |
252b5132 | 11698 | if (is_space_char (*base_string)) |
24eab124 | 11699 | ++base_string; |
252b5132 | 11700 | |
af6bdddf | 11701 | if (*base_string == ',' |
4eed87de AM |
11702 | || ((i.base_reg = parse_register (base_string, &end_op)) |
11703 | != NULL)) | |
252b5132 | 11704 | { |
af6bdddf | 11705 | displacement_string_end = temp_string; |
252b5132 | 11706 | |
40fb9820 | 11707 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 11708 | |
af6bdddf | 11709 | if (i.base_reg) |
24eab124 | 11710 | { |
8a6fb3f9 JB |
11711 | if (i.base_reg == &bad_reg) |
11712 | return 0; | |
24eab124 AM |
11713 | base_string = end_op; |
11714 | if (is_space_char (*base_string)) | |
11715 | ++base_string; | |
af6bdddf AM |
11716 | } |
11717 | ||
11718 | /* There may be an index reg or scale factor here. */ | |
11719 | if (*base_string == ',') | |
11720 | { | |
11721 | ++base_string; | |
11722 | if (is_space_char (*base_string)) | |
11723 | ++base_string; | |
11724 | ||
4eed87de AM |
11725 | if ((i.index_reg = parse_register (base_string, &end_op)) |
11726 | != NULL) | |
24eab124 | 11727 | { |
8a6fb3f9 JB |
11728 | if (i.index_reg == &bad_reg) |
11729 | return 0; | |
af6bdddf | 11730 | base_string = end_op; |
24eab124 AM |
11731 | if (is_space_char (*base_string)) |
11732 | ++base_string; | |
af6bdddf AM |
11733 | if (*base_string == ',') |
11734 | { | |
11735 | ++base_string; | |
11736 | if (is_space_char (*base_string)) | |
11737 | ++base_string; | |
11738 | } | |
e5cb08ac | 11739 | else if (*base_string != ')') |
af6bdddf | 11740 | { |
4eed87de AM |
11741 | as_bad (_("expecting `,' or `)' " |
11742 | "after index register in `%s'"), | |
af6bdddf AM |
11743 | operand_string); |
11744 | return 0; | |
11745 | } | |
24eab124 | 11746 | } |
af6bdddf | 11747 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 11748 | { |
f76bf5e0 L |
11749 | end_op = strchr (base_string, ','); |
11750 | if (end_op) | |
11751 | *end_op = '\0'; | |
af6bdddf | 11752 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
11753 | return 0; |
11754 | } | |
252b5132 | 11755 | |
47926f60 | 11756 | /* Check for scale factor. */ |
551c1ca1 | 11757 | if (*base_string != ')') |
af6bdddf | 11758 | { |
551c1ca1 AM |
11759 | char *end_scale = i386_scale (base_string); |
11760 | ||
11761 | if (!end_scale) | |
af6bdddf | 11762 | return 0; |
24eab124 | 11763 | |
551c1ca1 | 11764 | base_string = end_scale; |
af6bdddf AM |
11765 | if (is_space_char (*base_string)) |
11766 | ++base_string; | |
11767 | if (*base_string != ')') | |
11768 | { | |
4eed87de AM |
11769 | as_bad (_("expecting `)' " |
11770 | "after scale factor in `%s'"), | |
af6bdddf AM |
11771 | operand_string); |
11772 | return 0; | |
11773 | } | |
11774 | } | |
11775 | else if (!i.index_reg) | |
24eab124 | 11776 | { |
4eed87de AM |
11777 | as_bad (_("expecting index register or scale factor " |
11778 | "after `,'; got '%c'"), | |
af6bdddf | 11779 | *base_string); |
24eab124 AM |
11780 | return 0; |
11781 | } | |
11782 | } | |
af6bdddf | 11783 | else if (*base_string != ')') |
24eab124 | 11784 | { |
4eed87de AM |
11785 | as_bad (_("expecting `,' or `)' " |
11786 | "after base register in `%s'"), | |
af6bdddf | 11787 | operand_string); |
24eab124 AM |
11788 | return 0; |
11789 | } | |
c3332e24 | 11790 | } |
af6bdddf | 11791 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 11792 | { |
f76bf5e0 L |
11793 | end_op = strchr (base_string, ','); |
11794 | if (end_op) | |
11795 | *end_op = '\0'; | |
af6bdddf | 11796 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 11797 | return 0; |
c3332e24 | 11798 | } |
24eab124 AM |
11799 | } |
11800 | ||
11801 | /* If there's an expression beginning the operand, parse it, | |
11802 | assuming displacement_string_start and | |
11803 | displacement_string_end are meaningful. */ | |
11804 | if (displacement_string_start != displacement_string_end) | |
11805 | { | |
11806 | if (!i386_displacement (displacement_string_start, | |
11807 | displacement_string_end)) | |
11808 | return 0; | |
11809 | } | |
11810 | ||
11811 | /* Special case for (%dx) while doing input/output op. */ | |
11812 | if (i.base_reg | |
75e5731b JB |
11813 | && i.base_reg->reg_type.bitfield.instance == RegD |
11814 | && i.base_reg->reg_type.bitfield.word | |
24eab124 AM |
11815 | && i.index_reg == 0 |
11816 | && i.log2_scale_factor == 0 | |
11817 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 11818 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 11819 | { |
2fb5be8d | 11820 | i.types[this_operand] = i.base_reg->reg_type; |
9373f275 | 11821 | i.input_output_operand = true; |
24eab124 AM |
11822 | return 1; |
11823 | } | |
11824 | ||
eecb386c AM |
11825 | if (i386_index_check (operand_string) == 0) |
11826 | return 0; | |
c48dadc9 | 11827 | i.flags[this_operand] |= Operand_Mem; |
8325cc63 JB |
11828 | if (i.mem_operands == 0) |
11829 | i.memop1_string = xstrdup (operand_string); | |
24eab124 AM |
11830 | i.mem_operands++; |
11831 | } | |
11832 | else | |
ce8a8b2f AM |
11833 | { |
11834 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
11835 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
11836 | output_invalid (*op_string), | |
11837 | this_operand + 1, | |
11838 | op_string); | |
11839 | return 0; | |
11840 | } | |
47926f60 | 11841 | return 1; /* Normal return. */ |
252b5132 RH |
11842 | } |
11843 | \f | |
fa94de6b RM |
11844 | /* Calculate the maximum variable size (i.e., excluding fr_fix) |
11845 | that an rs_machine_dependent frag may reach. */ | |
11846 | ||
11847 | unsigned int | |
11848 | i386_frag_max_var (fragS *frag) | |
11849 | { | |
11850 | /* The only relaxable frags are for jumps. | |
11851 | Unconditional jumps can grow by 4 bytes and others by 5 bytes. */ | |
11852 | gas_assert (frag->fr_type == rs_machine_dependent); | |
11853 | return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5; | |
11854 | } | |
11855 | ||
b084df0b L |
11856 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
11857 | static int | |
8dcea932 | 11858 | elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var) |
b084df0b L |
11859 | { |
11860 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
11861 | if ((symbol_get_bfdsym (fr_symbol)->flags | |
11862 | & BSF_GNU_INDIRECT_FUNCTION) != 0) | |
11863 | return 0; | |
11864 | ||
11865 | if (!S_IS_EXTERNAL (fr_symbol)) | |
11866 | /* Symbol may be weak or local. */ | |
11867 | return !S_IS_WEAK (fr_symbol); | |
11868 | ||
8dcea932 L |
11869 | /* Global symbols with non-default visibility can't be preempted. */ |
11870 | if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT) | |
11871 | return 1; | |
11872 | ||
11873 | if (fr_var != NO_RELOC) | |
11874 | switch ((enum bfd_reloc_code_real) fr_var) | |
11875 | { | |
11876 | case BFD_RELOC_386_PLT32: | |
11877 | case BFD_RELOC_X86_64_PLT32: | |
33eaf5de | 11878 | /* Symbol with PLT relocation may be preempted. */ |
8dcea932 L |
11879 | return 0; |
11880 | default: | |
11881 | abort (); | |
11882 | } | |
11883 | ||
b084df0b L |
11884 | /* Global symbols with default visibility in a shared library may be |
11885 | preempted by another definition. */ | |
8dcea932 | 11886 | return !shared; |
b084df0b L |
11887 | } |
11888 | #endif | |
11889 | ||
79d72f45 HL |
11890 | /* Table 3-2. Macro-Fusible Instructions in Haswell Microarchitecture |
11891 | Note also work for Skylake and Cascadelake. | |
11892 | --------------------------------------------------------------------- | |
11893 | | JCC | ADD/SUB/CMP | INC/DEC | TEST/AND | | |
11894 | | ------ | ----------- | ------- | -------- | | |
11895 | | Jo | N | N | Y | | |
11896 | | Jno | N | N | Y | | |
11897 | | Jc/Jb | Y | N | Y | | |
11898 | | Jae/Jnb | Y | N | Y | | |
11899 | | Je/Jz | Y | Y | Y | | |
11900 | | Jne/Jnz | Y | Y | Y | | |
11901 | | Jna/Jbe | Y | N | Y | | |
11902 | | Ja/Jnbe | Y | N | Y | | |
11903 | | Js | N | N | Y | | |
11904 | | Jns | N | N | Y | | |
11905 | | Jp/Jpe | N | N | Y | | |
11906 | | Jnp/Jpo | N | N | Y | | |
11907 | | Jl/Jnge | Y | Y | Y | | |
11908 | | Jge/Jnl | Y | Y | Y | | |
11909 | | Jle/Jng | Y | Y | Y | | |
11910 | | Jg/Jnle | Y | Y | Y | | |
11911 | --------------------------------------------------------------------- */ | |
11912 | static int | |
11913 | i386_macro_fusible_p (enum mf_cmp_kind mf_cmp, enum mf_jcc_kind mf_jcc) | |
11914 | { | |
11915 | if (mf_cmp == mf_cmp_alu_cmp) | |
11916 | return ((mf_jcc >= mf_jcc_jc && mf_jcc <= mf_jcc_jna) | |
11917 | || mf_jcc == mf_jcc_jl || mf_jcc == mf_jcc_jle); | |
11918 | if (mf_cmp == mf_cmp_incdec) | |
11919 | return (mf_jcc == mf_jcc_je || mf_jcc == mf_jcc_jl | |
11920 | || mf_jcc == mf_jcc_jle); | |
11921 | if (mf_cmp == mf_cmp_test_and) | |
11922 | return 1; | |
11923 | return 0; | |
11924 | } | |
11925 | ||
e379e5f3 L |
11926 | /* Return the next non-empty frag. */ |
11927 | ||
11928 | static fragS * | |
11929 | i386_next_non_empty_frag (fragS *fragP) | |
11930 | { | |
11931 | /* There may be a frag with a ".fill 0" when there is no room in | |
11932 | the current frag for frag_grow in output_insn. */ | |
11933 | for (fragP = fragP->fr_next; | |
11934 | (fragP != NULL | |
11935 | && fragP->fr_type == rs_fill | |
11936 | && fragP->fr_fix == 0); | |
11937 | fragP = fragP->fr_next) | |
11938 | ; | |
11939 | return fragP; | |
11940 | } | |
11941 | ||
11942 | /* Return the next jcc frag after BRANCH_PADDING. */ | |
11943 | ||
11944 | static fragS * | |
79d72f45 | 11945 | i386_next_fusible_jcc_frag (fragS *maybe_cmp_fragP, fragS *pad_fragP) |
e379e5f3 | 11946 | { |
79d72f45 HL |
11947 | fragS *branch_fragP; |
11948 | if (!pad_fragP) | |
e379e5f3 L |
11949 | return NULL; |
11950 | ||
79d72f45 HL |
11951 | if (pad_fragP->fr_type == rs_machine_dependent |
11952 | && (TYPE_FROM_RELAX_STATE (pad_fragP->fr_subtype) | |
e379e5f3 L |
11953 | == BRANCH_PADDING)) |
11954 | { | |
79d72f45 HL |
11955 | branch_fragP = i386_next_non_empty_frag (pad_fragP); |
11956 | if (branch_fragP->fr_type != rs_machine_dependent) | |
e379e5f3 | 11957 | return NULL; |
79d72f45 HL |
11958 | if (TYPE_FROM_RELAX_STATE (branch_fragP->fr_subtype) == COND_JUMP |
11959 | && i386_macro_fusible_p (maybe_cmp_fragP->tc_frag_data.mf_type, | |
11960 | pad_fragP->tc_frag_data.mf_type)) | |
11961 | return branch_fragP; | |
e379e5f3 L |
11962 | } |
11963 | ||
11964 | return NULL; | |
11965 | } | |
11966 | ||
11967 | /* Classify BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags. */ | |
11968 | ||
11969 | static void | |
11970 | i386_classify_machine_dependent_frag (fragS *fragP) | |
11971 | { | |
11972 | fragS *cmp_fragP; | |
11973 | fragS *pad_fragP; | |
11974 | fragS *branch_fragP; | |
11975 | fragS *next_fragP; | |
11976 | unsigned int max_prefix_length; | |
11977 | ||
11978 | if (fragP->tc_frag_data.classified) | |
11979 | return; | |
11980 | ||
11981 | /* First scan for BRANCH_PADDING and FUSED_JCC_PADDING. Convert | |
11982 | FUSED_JCC_PADDING and merge BRANCH_PADDING. */ | |
11983 | for (next_fragP = fragP; | |
11984 | next_fragP != NULL; | |
11985 | next_fragP = next_fragP->fr_next) | |
11986 | { | |
11987 | next_fragP->tc_frag_data.classified = 1; | |
11988 | if (next_fragP->fr_type == rs_machine_dependent) | |
11989 | switch (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)) | |
11990 | { | |
11991 | case BRANCH_PADDING: | |
11992 | /* The BRANCH_PADDING frag must be followed by a branch | |
11993 | frag. */ | |
11994 | branch_fragP = i386_next_non_empty_frag (next_fragP); | |
11995 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
11996 | break; | |
11997 | case FUSED_JCC_PADDING: | |
11998 | /* Check if this is a fused jcc: | |
11999 | FUSED_JCC_PADDING | |
12000 | CMP like instruction | |
12001 | BRANCH_PADDING | |
12002 | COND_JUMP | |
12003 | */ | |
12004 | cmp_fragP = i386_next_non_empty_frag (next_fragP); | |
12005 | pad_fragP = i386_next_non_empty_frag (cmp_fragP); | |
79d72f45 | 12006 | branch_fragP = i386_next_fusible_jcc_frag (next_fragP, pad_fragP); |
e379e5f3 L |
12007 | if (branch_fragP) |
12008 | { | |
12009 | /* The BRANCH_PADDING frag is merged with the | |
12010 | FUSED_JCC_PADDING frag. */ | |
12011 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
12012 | /* CMP like instruction size. */ | |
12013 | next_fragP->tc_frag_data.cmp_size = cmp_fragP->fr_fix; | |
12014 | frag_wane (pad_fragP); | |
12015 | /* Skip to branch_fragP. */ | |
12016 | next_fragP = branch_fragP; | |
12017 | } | |
12018 | else if (next_fragP->tc_frag_data.max_prefix_length) | |
12019 | { | |
12020 | /* Turn FUSED_JCC_PADDING into BRANCH_PREFIX if it isn't | |
12021 | a fused jcc. */ | |
12022 | next_fragP->fr_subtype | |
12023 | = ENCODE_RELAX_STATE (BRANCH_PREFIX, 0); | |
12024 | next_fragP->tc_frag_data.max_bytes | |
12025 | = next_fragP->tc_frag_data.max_prefix_length; | |
12026 | /* This will be updated in the BRANCH_PREFIX scan. */ | |
12027 | next_fragP->tc_frag_data.max_prefix_length = 0; | |
12028 | } | |
12029 | else | |
12030 | frag_wane (next_fragP); | |
12031 | break; | |
12032 | } | |
12033 | } | |
12034 | ||
12035 | /* Stop if there is no BRANCH_PREFIX. */ | |
12036 | if (!align_branch_prefix_size) | |
12037 | return; | |
12038 | ||
12039 | /* Scan for BRANCH_PREFIX. */ | |
12040 | for (; fragP != NULL; fragP = fragP->fr_next) | |
12041 | { | |
12042 | if (fragP->fr_type != rs_machine_dependent | |
12043 | || (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
12044 | != BRANCH_PREFIX)) | |
12045 | continue; | |
12046 | ||
12047 | /* Count all BRANCH_PREFIX frags before BRANCH_PADDING and | |
12048 | COND_JUMP_PREFIX. */ | |
12049 | max_prefix_length = 0; | |
12050 | for (next_fragP = fragP; | |
12051 | next_fragP != NULL; | |
12052 | next_fragP = next_fragP->fr_next) | |
12053 | { | |
12054 | if (next_fragP->fr_type == rs_fill) | |
12055 | /* Skip rs_fill frags. */ | |
12056 | continue; | |
12057 | else if (next_fragP->fr_type != rs_machine_dependent) | |
12058 | /* Stop for all other frags. */ | |
12059 | break; | |
12060 | ||
12061 | /* rs_machine_dependent frags. */ | |
12062 | if (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12063 | == BRANCH_PREFIX) | |
12064 | { | |
12065 | /* Count BRANCH_PREFIX frags. */ | |
12066 | if (max_prefix_length >= MAX_FUSED_JCC_PADDING_SIZE) | |
12067 | { | |
12068 | max_prefix_length = MAX_FUSED_JCC_PADDING_SIZE; | |
12069 | frag_wane (next_fragP); | |
12070 | } | |
12071 | else | |
12072 | max_prefix_length | |
12073 | += next_fragP->tc_frag_data.max_bytes; | |
12074 | } | |
12075 | else if ((TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12076 | == BRANCH_PADDING) | |
12077 | || (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12078 | == FUSED_JCC_PADDING)) | |
12079 | { | |
12080 | /* Stop at BRANCH_PADDING and FUSED_JCC_PADDING. */ | |
12081 | fragP->tc_frag_data.u.padding_fragP = next_fragP; | |
12082 | break; | |
12083 | } | |
12084 | else | |
12085 | /* Stop for other rs_machine_dependent frags. */ | |
12086 | break; | |
12087 | } | |
12088 | ||
12089 | fragP->tc_frag_data.max_prefix_length = max_prefix_length; | |
12090 | ||
12091 | /* Skip to the next frag. */ | |
12092 | fragP = next_fragP; | |
12093 | } | |
12094 | } | |
12095 | ||
12096 | /* Compute padding size for | |
12097 | ||
12098 | FUSED_JCC_PADDING | |
12099 | CMP like instruction | |
12100 | BRANCH_PADDING | |
12101 | COND_JUMP/UNCOND_JUMP | |
12102 | ||
12103 | or | |
12104 | ||
12105 | BRANCH_PADDING | |
12106 | COND_JUMP/UNCOND_JUMP | |
12107 | */ | |
12108 | ||
12109 | static int | |
12110 | i386_branch_padding_size (fragS *fragP, offsetT address) | |
12111 | { | |
12112 | unsigned int offset, size, padding_size; | |
12113 | fragS *branch_fragP = fragP->tc_frag_data.u.branch_fragP; | |
12114 | ||
12115 | /* The start address of the BRANCH_PADDING or FUSED_JCC_PADDING frag. */ | |
12116 | if (!address) | |
12117 | address = fragP->fr_address; | |
12118 | address += fragP->fr_fix; | |
12119 | ||
12120 | /* CMP like instrunction size. */ | |
12121 | size = fragP->tc_frag_data.cmp_size; | |
12122 | ||
12123 | /* The base size of the branch frag. */ | |
12124 | size += branch_fragP->fr_fix; | |
12125 | ||
12126 | /* Add opcode and displacement bytes for the rs_machine_dependent | |
12127 | branch frag. */ | |
12128 | if (branch_fragP->fr_type == rs_machine_dependent) | |
12129 | size += md_relax_table[branch_fragP->fr_subtype].rlx_length; | |
12130 | ||
12131 | /* Check if branch is within boundary and doesn't end at the last | |
12132 | byte. */ | |
12133 | offset = address & ((1U << align_branch_power) - 1); | |
12134 | if ((offset + size) >= (1U << align_branch_power)) | |
12135 | /* Padding needed to avoid crossing boundary. */ | |
12136 | padding_size = (1U << align_branch_power) - offset; | |
12137 | else | |
12138 | /* No padding needed. */ | |
12139 | padding_size = 0; | |
12140 | ||
12141 | /* The return value may be saved in tc_frag_data.length which is | |
12142 | unsigned byte. */ | |
12143 | if (!fits_in_unsigned_byte (padding_size)) | |
12144 | abort (); | |
12145 | ||
12146 | return padding_size; | |
12147 | } | |
12148 | ||
12149 | /* i386_generic_table_relax_frag() | |
12150 | ||
12151 | Handle BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags to | |
12152 | grow/shrink padding to align branch frags. Hand others to | |
12153 | relax_frag(). */ | |
12154 | ||
12155 | long | |
12156 | i386_generic_table_relax_frag (segT segment, fragS *fragP, long stretch) | |
12157 | { | |
12158 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
12159 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
12160 | { | |
12161 | long padding_size = i386_branch_padding_size (fragP, 0); | |
12162 | long grow = padding_size - fragP->tc_frag_data.length; | |
12163 | ||
12164 | /* When the BRANCH_PREFIX frag is used, the computed address | |
12165 | must match the actual address and there should be no padding. */ | |
12166 | if (fragP->tc_frag_data.padding_address | |
12167 | && (fragP->tc_frag_data.padding_address != fragP->fr_address | |
12168 | || padding_size)) | |
12169 | abort (); | |
12170 | ||
12171 | /* Update the padding size. */ | |
12172 | if (grow) | |
12173 | fragP->tc_frag_data.length = padding_size; | |
12174 | ||
12175 | return grow; | |
12176 | } | |
12177 | else if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12178 | { | |
12179 | fragS *padding_fragP, *next_fragP; | |
12180 | long padding_size, left_size, last_size; | |
12181 | ||
12182 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
12183 | if (!padding_fragP) | |
12184 | /* Use the padding set by the leading BRANCH_PREFIX frag. */ | |
12185 | return (fragP->tc_frag_data.length | |
12186 | - fragP->tc_frag_data.last_length); | |
12187 | ||
12188 | /* Compute the relative address of the padding frag in the very | |
12189 | first time where the BRANCH_PREFIX frag sizes are zero. */ | |
12190 | if (!fragP->tc_frag_data.padding_address) | |
12191 | fragP->tc_frag_data.padding_address | |
12192 | = padding_fragP->fr_address - (fragP->fr_address - stretch); | |
12193 | ||
12194 | /* First update the last length from the previous interation. */ | |
12195 | left_size = fragP->tc_frag_data.prefix_length; | |
12196 | for (next_fragP = fragP; | |
12197 | next_fragP != padding_fragP; | |
12198 | next_fragP = next_fragP->fr_next) | |
12199 | if (next_fragP->fr_type == rs_machine_dependent | |
12200 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12201 | == BRANCH_PREFIX)) | |
12202 | { | |
12203 | if (left_size) | |
12204 | { | |
12205 | int max = next_fragP->tc_frag_data.max_bytes; | |
12206 | if (max) | |
12207 | { | |
12208 | int size; | |
12209 | if (max > left_size) | |
12210 | size = left_size; | |
12211 | else | |
12212 | size = max; | |
12213 | left_size -= size; | |
12214 | next_fragP->tc_frag_data.last_length = size; | |
12215 | } | |
12216 | } | |
12217 | else | |
12218 | next_fragP->tc_frag_data.last_length = 0; | |
12219 | } | |
12220 | ||
12221 | /* Check the padding size for the padding frag. */ | |
12222 | padding_size = i386_branch_padding_size | |
12223 | (padding_fragP, (fragP->fr_address | |
12224 | + fragP->tc_frag_data.padding_address)); | |
12225 | ||
12226 | last_size = fragP->tc_frag_data.prefix_length; | |
12227 | /* Check if there is change from the last interation. */ | |
12228 | if (padding_size == last_size) | |
12229 | { | |
12230 | /* Update the expected address of the padding frag. */ | |
12231 | padding_fragP->tc_frag_data.padding_address | |
12232 | = (fragP->fr_address + padding_size | |
12233 | + fragP->tc_frag_data.padding_address); | |
12234 | return 0; | |
12235 | } | |
12236 | ||
12237 | if (padding_size > fragP->tc_frag_data.max_prefix_length) | |
12238 | { | |
12239 | /* No padding if there is no sufficient room. Clear the | |
12240 | expected address of the padding frag. */ | |
12241 | padding_fragP->tc_frag_data.padding_address = 0; | |
12242 | padding_size = 0; | |
12243 | } | |
12244 | else | |
12245 | /* Store the expected address of the padding frag. */ | |
12246 | padding_fragP->tc_frag_data.padding_address | |
12247 | = (fragP->fr_address + padding_size | |
12248 | + fragP->tc_frag_data.padding_address); | |
12249 | ||
12250 | fragP->tc_frag_data.prefix_length = padding_size; | |
12251 | ||
12252 | /* Update the length for the current interation. */ | |
12253 | left_size = padding_size; | |
12254 | for (next_fragP = fragP; | |
12255 | next_fragP != padding_fragP; | |
12256 | next_fragP = next_fragP->fr_next) | |
12257 | if (next_fragP->fr_type == rs_machine_dependent | |
12258 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12259 | == BRANCH_PREFIX)) | |
12260 | { | |
12261 | if (left_size) | |
12262 | { | |
12263 | int max = next_fragP->tc_frag_data.max_bytes; | |
12264 | if (max) | |
12265 | { | |
12266 | int size; | |
12267 | if (max > left_size) | |
12268 | size = left_size; | |
12269 | else | |
12270 | size = max; | |
12271 | left_size -= size; | |
12272 | next_fragP->tc_frag_data.length = size; | |
12273 | } | |
12274 | } | |
12275 | else | |
12276 | next_fragP->tc_frag_data.length = 0; | |
12277 | } | |
12278 | ||
12279 | return (fragP->tc_frag_data.length | |
12280 | - fragP->tc_frag_data.last_length); | |
12281 | } | |
12282 | return relax_frag (segment, fragP, stretch); | |
12283 | } | |
12284 | ||
ee7fcc42 AM |
12285 | /* md_estimate_size_before_relax() |
12286 | ||
12287 | Called just before relax() for rs_machine_dependent frags. The x86 | |
12288 | assembler uses these frags to handle variable size jump | |
12289 | instructions. | |
12290 | ||
12291 | Any symbol that is now undefined will not become defined. | |
12292 | Return the correct fr_subtype in the frag. | |
12293 | Return the initial "guess for variable size of frag" to caller. | |
12294 | The guess is actually the growth beyond the fixed part. Whatever | |
12295 | we do to grow the fixed or variable part contributes to our | |
12296 | returned value. */ | |
12297 | ||
252b5132 | 12298 | int |
7016a5d5 | 12299 | md_estimate_size_before_relax (fragS *fragP, segT segment) |
252b5132 | 12300 | { |
e379e5f3 L |
12301 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
12302 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX | |
12303 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
12304 | { | |
12305 | i386_classify_machine_dependent_frag (fragP); | |
12306 | return fragP->tc_frag_data.length; | |
12307 | } | |
12308 | ||
252b5132 | 12309 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
12310 | check for un-relaxable symbols. On an ELF system, we can't relax |
12311 | an externally visible symbol, because it may be overridden by a | |
12312 | shared library. */ | |
12313 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 12314 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 12315 | || (IS_ELF |
8dcea932 L |
12316 | && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol, |
12317 | fragP->fr_var)) | |
fbeb56a4 DK |
12318 | #endif |
12319 | #if defined (OBJ_COFF) && defined (TE_PE) | |
7ab9ffdd | 12320 | || (OUTPUT_FLAVOR == bfd_target_coff_flavour |
fbeb56a4 | 12321 | && S_IS_WEAK (fragP->fr_symbol)) |
b98ef147 AM |
12322 | #endif |
12323 | ) | |
252b5132 | 12324 | { |
b98ef147 AM |
12325 | /* Symbol is undefined in this segment, or we need to keep a |
12326 | reloc so that weak symbols can be overridden. */ | |
12327 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 12328 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
12329 | unsigned char *opcode; |
12330 | int old_fr_fix; | |
eb19308f | 12331 | fixS *fixP = NULL; |
f6af82bd | 12332 | |
ee7fcc42 | 12333 | if (fragP->fr_var != NO_RELOC) |
1e9cc1c2 | 12334 | reloc_type = (enum bfd_reloc_code_real) fragP->fr_var; |
b98ef147 | 12335 | else if (size == 2) |
f6af82bd | 12336 | reloc_type = BFD_RELOC_16_PCREL; |
bd7ab16b | 12337 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1ef3994a JB |
12338 | else if (fragP->tc_frag_data.code64 && fragP->fr_offset == 0 |
12339 | && need_plt32_p (fragP->fr_symbol)) | |
bd7ab16b L |
12340 | reloc_type = BFD_RELOC_X86_64_PLT32; |
12341 | #endif | |
f6af82bd AM |
12342 | else |
12343 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 12344 | |
ee7fcc42 AM |
12345 | old_fr_fix = fragP->fr_fix; |
12346 | opcode = (unsigned char *) fragP->fr_opcode; | |
12347 | ||
fddf5b5b | 12348 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 12349 | { |
fddf5b5b AM |
12350 | case UNCOND_JUMP: |
12351 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 12352 | opcode[0] = 0xe9; |
252b5132 | 12353 | fragP->fr_fix += size; |
eb19308f JB |
12354 | fixP = fix_new (fragP, old_fr_fix, size, |
12355 | fragP->fr_symbol, | |
12356 | fragP->fr_offset, 1, | |
12357 | reloc_type); | |
252b5132 RH |
12358 | break; |
12359 | ||
fddf5b5b | 12360 | case COND_JUMP86: |
412167cb AM |
12361 | if (size == 2 |
12362 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
12363 | { |
12364 | /* Negate the condition, and branch past an | |
12365 | unconditional jump. */ | |
12366 | opcode[0] ^= 1; | |
12367 | opcode[1] = 3; | |
12368 | /* Insert an unconditional jump. */ | |
12369 | opcode[2] = 0xe9; | |
12370 | /* We added two extra opcode bytes, and have a two byte | |
12371 | offset. */ | |
12372 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
12373 | fix_new (fragP, old_fr_fix + 2, 2, |
12374 | fragP->fr_symbol, | |
12375 | fragP->fr_offset, 1, | |
12376 | reloc_type); | |
fddf5b5b AM |
12377 | break; |
12378 | } | |
12379 | /* Fall through. */ | |
12380 | ||
12381 | case COND_JUMP: | |
412167cb AM |
12382 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
12383 | { | |
12384 | fragP->fr_fix += 1; | |
3e02c1cc AM |
12385 | fixP = fix_new (fragP, old_fr_fix, 1, |
12386 | fragP->fr_symbol, | |
12387 | fragP->fr_offset, 1, | |
12388 | BFD_RELOC_8_PCREL); | |
12389 | fixP->fx_signed = 1; | |
412167cb AM |
12390 | break; |
12391 | } | |
93c2a809 | 12392 | |
24eab124 | 12393 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 12394 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 12395 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 12396 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
12397 | /* We've added an opcode byte. */ |
12398 | fragP->fr_fix += 1 + size; | |
eb19308f JB |
12399 | fixP = fix_new (fragP, old_fr_fix + 1, size, |
12400 | fragP->fr_symbol, | |
12401 | fragP->fr_offset, 1, | |
12402 | reloc_type); | |
252b5132 | 12403 | break; |
fddf5b5b AM |
12404 | |
12405 | default: | |
12406 | BAD_CASE (fragP->fr_subtype); | |
12407 | break; | |
252b5132 | 12408 | } |
eb19308f JB |
12409 | |
12410 | /* All jumps handled here are signed, but don't unconditionally use a | |
12411 | signed limit check for 32 and 16 bit jumps as we want to allow wrap | |
12412 | around at 4G (outside of 64-bit mode) and 64k. */ | |
12413 | if (size == 4 && flag_code == CODE_64BIT) | |
12414 | fixP->fx_signed = 1; | |
12415 | ||
252b5132 | 12416 | frag_wane (fragP); |
ee7fcc42 | 12417 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 12418 | } |
93c2a809 | 12419 | |
93c2a809 AM |
12420 | /* Guess size depending on current relax state. Initially the relax |
12421 | state will correspond to a short jump and we return 1, because | |
12422 | the variable part of the frag (the branch offset) is one byte | |
12423 | long. However, we can relax a section more than once and in that | |
12424 | case we must either set fr_subtype back to the unrelaxed state, | |
12425 | or return the value for the appropriate branch. */ | |
12426 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
12427 | } |
12428 | ||
47926f60 KH |
12429 | /* Called after relax() is finished. |
12430 | ||
12431 | In: Address of frag. | |
12432 | fr_type == rs_machine_dependent. | |
12433 | fr_subtype is what the address relaxed to. | |
12434 | ||
12435 | Out: Any fixSs and constants are set up. | |
12436 | Caller will turn frag into a ".space 0". */ | |
12437 | ||
252b5132 | 12438 | void |
7016a5d5 TG |
12439 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT sec ATTRIBUTE_UNUSED, |
12440 | fragS *fragP) | |
252b5132 | 12441 | { |
29b0f896 | 12442 | unsigned char *opcode; |
252b5132 | 12443 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
12444 | offsetT target_address; |
12445 | offsetT opcode_address; | |
252b5132 | 12446 | unsigned int extension = 0; |
847f7ad4 | 12447 | offsetT displacement_from_opcode_start; |
252b5132 | 12448 | |
e379e5f3 L |
12449 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
12450 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING | |
12451 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12452 | { | |
12453 | /* Generate nop padding. */ | |
12454 | unsigned int size = fragP->tc_frag_data.length; | |
12455 | if (size) | |
12456 | { | |
12457 | if (size > fragP->tc_frag_data.max_bytes) | |
12458 | abort (); | |
12459 | ||
12460 | if (flag_debug) | |
12461 | { | |
12462 | const char *msg; | |
12463 | const char *branch = "branch"; | |
12464 | const char *prefix = ""; | |
12465 | fragS *padding_fragP; | |
12466 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
12467 | == BRANCH_PREFIX) | |
12468 | { | |
12469 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
12470 | switch (fragP->tc_frag_data.default_prefix) | |
12471 | { | |
12472 | default: | |
12473 | abort (); | |
12474 | break; | |
12475 | case CS_PREFIX_OPCODE: | |
12476 | prefix = " cs"; | |
12477 | break; | |
12478 | case DS_PREFIX_OPCODE: | |
12479 | prefix = " ds"; | |
12480 | break; | |
12481 | case ES_PREFIX_OPCODE: | |
12482 | prefix = " es"; | |
12483 | break; | |
12484 | case FS_PREFIX_OPCODE: | |
12485 | prefix = " fs"; | |
12486 | break; | |
12487 | case GS_PREFIX_OPCODE: | |
12488 | prefix = " gs"; | |
12489 | break; | |
12490 | case SS_PREFIX_OPCODE: | |
12491 | prefix = " ss"; | |
12492 | break; | |
12493 | } | |
12494 | if (padding_fragP) | |
12495 | msg = _("%s:%u: add %d%s at 0x%llx to align " | |
12496 | "%s within %d-byte boundary\n"); | |
12497 | else | |
12498 | msg = _("%s:%u: add additional %d%s at 0x%llx to " | |
12499 | "align %s within %d-byte boundary\n"); | |
12500 | } | |
12501 | else | |
12502 | { | |
12503 | padding_fragP = fragP; | |
12504 | msg = _("%s:%u: add %d%s-byte nop at 0x%llx to align " | |
12505 | "%s within %d-byte boundary\n"); | |
12506 | } | |
12507 | ||
12508 | if (padding_fragP) | |
12509 | switch (padding_fragP->tc_frag_data.branch_type) | |
12510 | { | |
12511 | case align_branch_jcc: | |
12512 | branch = "jcc"; | |
12513 | break; | |
12514 | case align_branch_fused: | |
12515 | branch = "fused jcc"; | |
12516 | break; | |
12517 | case align_branch_jmp: | |
12518 | branch = "jmp"; | |
12519 | break; | |
12520 | case align_branch_call: | |
12521 | branch = "call"; | |
12522 | break; | |
12523 | case align_branch_indirect: | |
12524 | branch = "indiret branch"; | |
12525 | break; | |
12526 | case align_branch_ret: | |
12527 | branch = "ret"; | |
12528 | break; | |
12529 | default: | |
12530 | break; | |
12531 | } | |
12532 | ||
12533 | fprintf (stdout, msg, | |
12534 | fragP->fr_file, fragP->fr_line, size, prefix, | |
12535 | (long long) fragP->fr_address, branch, | |
12536 | 1 << align_branch_power); | |
12537 | } | |
12538 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12539 | memset (fragP->fr_opcode, | |
12540 | fragP->tc_frag_data.default_prefix, size); | |
12541 | else | |
12542 | i386_generate_nops (fragP, (char *) fragP->fr_opcode, | |
12543 | size, 0); | |
12544 | fragP->fr_fix += size; | |
12545 | } | |
12546 | return; | |
12547 | } | |
12548 | ||
252b5132 RH |
12549 | opcode = (unsigned char *) fragP->fr_opcode; |
12550 | ||
47926f60 | 12551 | /* Address we want to reach in file space. */ |
252b5132 | 12552 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 12553 | |
47926f60 | 12554 | /* Address opcode resides at in file space. */ |
252b5132 RH |
12555 | opcode_address = fragP->fr_address + fragP->fr_fix; |
12556 | ||
47926f60 | 12557 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
12558 | displacement_from_opcode_start = target_address - opcode_address; |
12559 | ||
fddf5b5b | 12560 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 12561 | { |
47926f60 KH |
12562 | /* Don't have to change opcode. */ |
12563 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 12564 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
12565 | } |
12566 | else | |
12567 | { | |
12568 | if (no_cond_jump_promotion | |
12569 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
12570 | as_warn_where (fragP->fr_file, fragP->fr_line, |
12571 | _("long jump required")); | |
252b5132 | 12572 | |
fddf5b5b AM |
12573 | switch (fragP->fr_subtype) |
12574 | { | |
12575 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
12576 | extension = 4; /* 1 opcode + 4 displacement */ | |
12577 | opcode[0] = 0xe9; | |
12578 | where_to_put_displacement = &opcode[1]; | |
12579 | break; | |
252b5132 | 12580 | |
fddf5b5b AM |
12581 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
12582 | extension = 2; /* 1 opcode + 2 displacement */ | |
12583 | opcode[0] = 0xe9; | |
12584 | where_to_put_displacement = &opcode[1]; | |
12585 | break; | |
252b5132 | 12586 | |
fddf5b5b AM |
12587 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
12588 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
12589 | extension = 5; /* 2 opcode + 4 displacement */ | |
12590 | opcode[1] = opcode[0] + 0x10; | |
12591 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12592 | where_to_put_displacement = &opcode[2]; | |
12593 | break; | |
252b5132 | 12594 | |
fddf5b5b AM |
12595 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
12596 | extension = 3; /* 2 opcode + 2 displacement */ | |
12597 | opcode[1] = opcode[0] + 0x10; | |
12598 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12599 | where_to_put_displacement = &opcode[2]; | |
12600 | break; | |
252b5132 | 12601 | |
fddf5b5b AM |
12602 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
12603 | extension = 4; | |
12604 | opcode[0] ^= 1; | |
12605 | opcode[1] = 3; | |
12606 | opcode[2] = 0xe9; | |
12607 | where_to_put_displacement = &opcode[3]; | |
12608 | break; | |
12609 | ||
12610 | default: | |
12611 | BAD_CASE (fragP->fr_subtype); | |
12612 | break; | |
12613 | } | |
252b5132 | 12614 | } |
fddf5b5b | 12615 | |
7b81dfbb AJ |
12616 | /* If size if less then four we are sure that the operand fits, |
12617 | but if it's 4, then it could be that the displacement is larger | |
12618 | then -/+ 2GB. */ | |
12619 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
12620 | && object_64bit | |
12621 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
12622 | + ((addressT) 1 << 31)) |
12623 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
12624 | { |
12625 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
12626 | _("jump target out of range")); | |
12627 | /* Make us emit 0. */ | |
12628 | displacement_from_opcode_start = extension; | |
12629 | } | |
47926f60 | 12630 | /* Now put displacement after opcode. */ |
252b5132 RH |
12631 | md_number_to_chars ((char *) where_to_put_displacement, |
12632 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 12633 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
12634 | fragP->fr_fix += extension; |
12635 | } | |
12636 | \f | |
7016a5d5 | 12637 | /* Apply a fixup (fixP) to segment data, once it has been determined |
252b5132 RH |
12638 | by our caller that we have all the info we need to fix it up. |
12639 | ||
7016a5d5 TG |
12640 | Parameter valP is the pointer to the value of the bits. |
12641 | ||
252b5132 RH |
12642 | On the 386, immediates, displacements, and data pointers are all in |
12643 | the same (little-endian) format, so we don't need to care about which | |
12644 | we are handling. */ | |
12645 | ||
94f592af | 12646 | void |
7016a5d5 | 12647 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 12648 | { |
94f592af | 12649 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 12650 | valueT value = *valP; |
252b5132 | 12651 | |
f86103b7 | 12652 | #if !defined (TE_Mach) |
93382f6d AM |
12653 | if (fixP->fx_pcrel) |
12654 | { | |
12655 | switch (fixP->fx_r_type) | |
12656 | { | |
5865bb77 ILT |
12657 | default: |
12658 | break; | |
12659 | ||
d6ab8113 JB |
12660 | case BFD_RELOC_64: |
12661 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
12662 | break; | |
93382f6d | 12663 | case BFD_RELOC_32: |
ae8887b5 | 12664 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
12665 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
12666 | break; | |
12667 | case BFD_RELOC_16: | |
12668 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
12669 | break; | |
12670 | case BFD_RELOC_8: | |
12671 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
12672 | break; | |
12673 | } | |
12674 | } | |
252b5132 | 12675 | |
a161fe53 | 12676 | if (fixP->fx_addsy != NULL |
31312f95 | 12677 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 12678 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 | 12679 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
d258b828 | 12680 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) |
31312f95 | 12681 | && !use_rela_relocations) |
252b5132 | 12682 | { |
31312f95 AM |
12683 | /* This is a hack. There should be a better way to handle this. |
12684 | This covers for the fact that bfd_install_relocation will | |
12685 | subtract the current location (for partial_inplace, PC relative | |
12686 | relocations); see more below. */ | |
252b5132 | 12687 | #ifndef OBJ_AOUT |
718ddfc0 | 12688 | if (IS_ELF |
252b5132 RH |
12689 | #ifdef TE_PE |
12690 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
12691 | #endif | |
12692 | ) | |
12693 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12694 | #endif | |
12695 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 12696 | if (IS_ELF) |
252b5132 | 12697 | { |
6539b54b | 12698 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 12699 | |
6539b54b | 12700 | if ((sym_seg == seg |
2f66722d | 12701 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 12702 | && sym_seg != absolute_section)) |
af65af87 | 12703 | && !generic_force_reloc (fixP)) |
2f66722d AM |
12704 | { |
12705 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
12706 | bfd_install_relocation subtracts them out again. I think |
12707 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
12708 | it. FIXME. */ |
12709 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12710 | } | |
252b5132 RH |
12711 | } |
12712 | #endif | |
12713 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
12714 | /* For some reason, the PE format does not store a |
12715 | section address offset for a PC relative symbol. */ | |
12716 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 12717 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
12718 | value += md_pcrel_from (fixP); |
12719 | #endif | |
12720 | } | |
fbeb56a4 | 12721 | #if defined (OBJ_COFF) && defined (TE_PE) |
f01c1a09 NC |
12722 | if (fixP->fx_addsy != NULL |
12723 | && S_IS_WEAK (fixP->fx_addsy) | |
12724 | /* PR 16858: Do not modify weak function references. */ | |
12725 | && ! fixP->fx_pcrel) | |
fbeb56a4 | 12726 | { |
296a8689 NC |
12727 | #if !defined (TE_PEP) |
12728 | /* For x86 PE weak function symbols are neither PC-relative | |
12729 | nor do they set S_IS_FUNCTION. So the only reliable way | |
12730 | to detect them is to check the flags of their containing | |
12731 | section. */ | |
12732 | if (S_GET_SEGMENT (fixP->fx_addsy) != NULL | |
12733 | && S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_CODE) | |
12734 | ; | |
12735 | else | |
12736 | #endif | |
fbeb56a4 DK |
12737 | value -= S_GET_VALUE (fixP->fx_addsy); |
12738 | } | |
12739 | #endif | |
252b5132 RH |
12740 | |
12741 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 12742 | and we must not disappoint it. */ |
252b5132 | 12743 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 12744 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
12745 | switch (fixP->fx_r_type) |
12746 | { | |
12747 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 12748 | case BFD_RELOC_X86_64_PLT32: |
b9519cfe L |
12749 | /* Make the jump instruction point to the address of the operand. |
12750 | At runtime we merely add the offset to the actual PLT entry. | |
12751 | NB: Subtract the offset size only for jump instructions. */ | |
12752 | if (fixP->fx_pcrel) | |
12753 | value = -4; | |
47926f60 | 12754 | break; |
31312f95 | 12755 | |
13ae64f3 JJ |
12756 | case BFD_RELOC_386_TLS_GD: |
12757 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 12758 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
12759 | case BFD_RELOC_386_TLS_IE: |
12760 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 12761 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
12762 | case BFD_RELOC_X86_64_TLSGD: |
12763 | case BFD_RELOC_X86_64_TLSLD: | |
12764 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 12765 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
12766 | value = 0; /* Fully resolved at runtime. No addend. */ |
12767 | /* Fallthrough */ | |
12768 | case BFD_RELOC_386_TLS_LE: | |
12769 | case BFD_RELOC_386_TLS_LDO_32: | |
12770 | case BFD_RELOC_386_TLS_LE_32: | |
12771 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 12772 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 12773 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 12774 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
12775 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
12776 | break; | |
12777 | ||
67a4f2b7 AO |
12778 | case BFD_RELOC_386_TLS_DESC_CALL: |
12779 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
12780 | value = 0; /* Fully resolved at runtime. No addend. */ | |
12781 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
12782 | fixP->fx_done = 0; | |
12783 | return; | |
12784 | ||
47926f60 KH |
12785 | case BFD_RELOC_VTABLE_INHERIT: |
12786 | case BFD_RELOC_VTABLE_ENTRY: | |
12787 | fixP->fx_done = 0; | |
94f592af | 12788 | return; |
47926f60 KH |
12789 | |
12790 | default: | |
12791 | break; | |
12792 | } | |
12793 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
a442cac5 JB |
12794 | |
12795 | /* If not 64bit, massage value, to account for wraparound when !BFD64. */ | |
12796 | if (!object_64bit) | |
12797 | value = extend_to_32bit_address (value); | |
12798 | ||
c6682705 | 12799 | *valP = value; |
f86103b7 | 12800 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 12801 | |
3e73aa7c | 12802 | /* Are we finished with this relocation now? */ |
c6682705 | 12803 | if (fixP->fx_addsy == NULL) |
b8188555 JB |
12804 | { |
12805 | fixP->fx_done = 1; | |
12806 | switch (fixP->fx_r_type) | |
12807 | { | |
12808 | case BFD_RELOC_X86_64_32S: | |
12809 | fixP->fx_signed = 1; | |
12810 | break; | |
12811 | ||
12812 | default: | |
12813 | break; | |
12814 | } | |
12815 | } | |
fbeb56a4 DK |
12816 | #if defined (OBJ_COFF) && defined (TE_PE) |
12817 | else if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy)) | |
12818 | { | |
12819 | fixP->fx_done = 0; | |
12820 | /* Remember value for tc_gen_reloc. */ | |
12821 | fixP->fx_addnumber = value; | |
12822 | /* Clear out the frag for now. */ | |
12823 | value = 0; | |
12824 | } | |
12825 | #endif | |
3e73aa7c JH |
12826 | else if (use_rela_relocations) |
12827 | { | |
46fb6d5a JB |
12828 | if (!disallow_64bit_reloc || fixP->fx_r_type == NO_RELOC) |
12829 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
12830 | /* Remember value for tc_gen_reloc. */ |
12831 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
12832 | value = 0; |
12833 | } | |
f86103b7 | 12834 | |
94f592af | 12835 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 12836 | } |
252b5132 | 12837 | \f |
6d4af3c2 | 12838 | const char * |
499ac353 | 12839 | md_atof (int type, char *litP, int *sizeP) |
252b5132 | 12840 | { |
499ac353 NC |
12841 | /* This outputs the LITTLENUMs in REVERSE order; |
12842 | in accord with the bigendian 386. */ | |
5b7c81bd | 12843 | return ieee_md_atof (type, litP, sizeP, false); |
252b5132 RH |
12844 | } |
12845 | \f | |
2d545b82 | 12846 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 12847 | |
252b5132 | 12848 | static char * |
e3bb37b5 | 12849 | output_invalid (int c) |
252b5132 | 12850 | { |
3882b010 | 12851 | if (ISPRINT (c)) |
f9f21a03 L |
12852 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
12853 | "'%c'", c); | |
252b5132 | 12854 | else |
f9f21a03 | 12855 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 12856 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
12857 | return output_invalid_buf; |
12858 | } | |
12859 | ||
8a6fb3f9 JB |
12860 | /* Verify that @r can be used in the current context. */ |
12861 | ||
5b7c81bd | 12862 | static bool check_register (const reg_entry *r) |
8a6fb3f9 JB |
12863 | { |
12864 | if (allow_pseudo_reg) | |
5b7c81bd | 12865 | return true; |
8a6fb3f9 JB |
12866 | |
12867 | if (operand_type_all_zero (&r->reg_type)) | |
5b7c81bd | 12868 | return false; |
8a6fb3f9 JB |
12869 | |
12870 | if ((r->reg_type.bitfield.dword | |
12871 | || (r->reg_type.bitfield.class == SReg && r->reg_num > 3) | |
12872 | || r->reg_type.bitfield.class == RegCR | |
22e00a3f | 12873 | || r->reg_type.bitfield.class == RegDR) |
8a6fb3f9 | 12874 | && !cpu_arch_flags.bitfield.cpui386) |
5b7c81bd | 12875 | return false; |
8a6fb3f9 | 12876 | |
22e00a3f JB |
12877 | if (r->reg_type.bitfield.class == RegTR |
12878 | && (flag_code == CODE_64BIT | |
12879 | || !cpu_arch_flags.bitfield.cpui386 | |
12880 | || cpu_arch_isa_flags.bitfield.cpui586 | |
12881 | || cpu_arch_isa_flags.bitfield.cpui686)) | |
5b7c81bd | 12882 | return false; |
22e00a3f | 12883 | |
8a6fb3f9 | 12884 | if (r->reg_type.bitfield.class == RegMMX && !cpu_arch_flags.bitfield.cpummx) |
5b7c81bd | 12885 | return false; |
8a6fb3f9 JB |
12886 | |
12887 | if (!cpu_arch_flags.bitfield.cpuavx512f) | |
12888 | { | |
12889 | if (r->reg_type.bitfield.zmmword | |
12890 | || r->reg_type.bitfield.class == RegMask) | |
5b7c81bd | 12891 | return false; |
8a6fb3f9 JB |
12892 | |
12893 | if (!cpu_arch_flags.bitfield.cpuavx) | |
12894 | { | |
12895 | if (r->reg_type.bitfield.ymmword) | |
5b7c81bd | 12896 | return false; |
8a6fb3f9 JB |
12897 | |
12898 | if (!cpu_arch_flags.bitfield.cpusse && r->reg_type.bitfield.xmmword) | |
5b7c81bd | 12899 | return false; |
8a6fb3f9 JB |
12900 | } |
12901 | } | |
12902 | ||
260cd341 LC |
12903 | if (r->reg_type.bitfield.tmmword |
12904 | && (!cpu_arch_flags.bitfield.cpuamx_tile | |
12905 | || flag_code != CODE_64BIT)) | |
5b7c81bd | 12906 | return false; |
260cd341 | 12907 | |
8a6fb3f9 | 12908 | if (r->reg_type.bitfield.class == RegBND && !cpu_arch_flags.bitfield.cpumpx) |
5b7c81bd | 12909 | return false; |
8a6fb3f9 JB |
12910 | |
12911 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ | |
12912 | if (!allow_index_reg && r->reg_num == RegIZ) | |
5b7c81bd | 12913 | return false; |
8a6fb3f9 JB |
12914 | |
12915 | /* Upper 16 vector registers are only available with VREX in 64bit | |
12916 | mode, and require EVEX encoding. */ | |
12917 | if (r->reg_flags & RegVRex) | |
12918 | { | |
12919 | if (!cpu_arch_flags.bitfield.cpuavx512f | |
12920 | || flag_code != CODE_64BIT) | |
5b7c81bd | 12921 | return false; |
8a6fb3f9 | 12922 | |
da4977e0 JB |
12923 | if (i.vec_encoding == vex_encoding_default) |
12924 | i.vec_encoding = vex_encoding_evex; | |
12925 | else if (i.vec_encoding != vex_encoding_evex) | |
12926 | i.vec_encoding = vex_encoding_error; | |
8a6fb3f9 JB |
12927 | } |
12928 | ||
12929 | if (((r->reg_flags & (RegRex64 | RegRex)) || r->reg_type.bitfield.qword) | |
12930 | && (!cpu_arch_flags.bitfield.cpulm || r->reg_type.bitfield.class != RegCR) | |
12931 | && flag_code != CODE_64BIT) | |
5b7c81bd | 12932 | return false; |
8a6fb3f9 JB |
12933 | |
12934 | if (r->reg_type.bitfield.class == SReg && r->reg_num == RegFlat | |
12935 | && !intel_syntax) | |
5b7c81bd | 12936 | return false; |
8a6fb3f9 | 12937 | |
5b7c81bd | 12938 | return true; |
8a6fb3f9 JB |
12939 | } |
12940 | ||
af6bdddf | 12941 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
12942 | |
12943 | static const reg_entry * | |
4d1bb795 | 12944 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 12945 | { |
af6bdddf AM |
12946 | char *s = reg_string; |
12947 | char *p; | |
252b5132 RH |
12948 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
12949 | const reg_entry *r; | |
12950 | ||
12951 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
12952 | if (*s == REGISTER_PREFIX) | |
12953 | ++s; | |
12954 | ||
12955 | if (is_space_char (*s)) | |
12956 | ++s; | |
12957 | ||
12958 | p = reg_name_given; | |
af6bdddf | 12959 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
12960 | { |
12961 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
12962 | return (const reg_entry *) NULL; |
12963 | s++; | |
252b5132 RH |
12964 | } |
12965 | ||
6588847e DN |
12966 | /* For naked regs, make sure that we are not dealing with an identifier. |
12967 | This prevents confusing an identifier like `eax_var' with register | |
12968 | `eax'. */ | |
12969 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
12970 | return (const reg_entry *) NULL; | |
12971 | ||
af6bdddf | 12972 | *end_op = s; |
252b5132 | 12973 | |
629310ab | 12974 | r = (const reg_entry *) str_hash_find (reg_hash, reg_name_given); |
252b5132 | 12975 | |
5f47d35b | 12976 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
6288d05f | 12977 | if (r == reg_st0) |
5f47d35b | 12978 | { |
0e0eea78 JB |
12979 | if (!cpu_arch_flags.bitfield.cpu8087 |
12980 | && !cpu_arch_flags.bitfield.cpu287 | |
af32b722 JB |
12981 | && !cpu_arch_flags.bitfield.cpu387 |
12982 | && !allow_pseudo_reg) | |
0e0eea78 JB |
12983 | return (const reg_entry *) NULL; |
12984 | ||
5f47d35b AM |
12985 | if (is_space_char (*s)) |
12986 | ++s; | |
12987 | if (*s == '(') | |
12988 | { | |
af6bdddf | 12989 | ++s; |
5f47d35b AM |
12990 | if (is_space_char (*s)) |
12991 | ++s; | |
12992 | if (*s >= '0' && *s <= '7') | |
12993 | { | |
db557034 | 12994 | int fpr = *s - '0'; |
af6bdddf | 12995 | ++s; |
5f47d35b AM |
12996 | if (is_space_char (*s)) |
12997 | ++s; | |
12998 | if (*s == ')') | |
12999 | { | |
13000 | *end_op = s + 1; | |
6288d05f | 13001 | know (r[fpr].reg_num == fpr); |
db557034 | 13002 | return r + fpr; |
5f47d35b | 13003 | } |
5f47d35b | 13004 | } |
47926f60 | 13005 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
13006 | return (const reg_entry *) NULL; |
13007 | } | |
13008 | } | |
13009 | ||
8a6fb3f9 | 13010 | return r && check_register (r) ? r : NULL; |
252b5132 | 13011 | } |
4d1bb795 JB |
13012 | |
13013 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
13014 | ||
13015 | static const reg_entry * | |
13016 | parse_register (char *reg_string, char **end_op) | |
13017 | { | |
13018 | const reg_entry *r; | |
13019 | ||
13020 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
13021 | r = parse_real_register (reg_string, end_op); | |
13022 | else | |
13023 | r = NULL; | |
13024 | if (!r) | |
13025 | { | |
13026 | char *save = input_line_pointer; | |
13027 | char c; | |
13028 | symbolS *symbolP; | |
13029 | ||
13030 | input_line_pointer = reg_string; | |
d02603dc | 13031 | c = get_symbol_name (®_string); |
4d1bb795 | 13032 | symbolP = symbol_find (reg_string); |
64d23078 JB |
13033 | while (symbolP && S_GET_SEGMENT (symbolP) != reg_section) |
13034 | { | |
13035 | const expressionS *e = symbol_get_value_expression(symbolP); | |
13036 | ||
13037 | if (e->X_op != O_symbol || e->X_add_number) | |
13038 | break; | |
13039 | symbolP = e->X_add_symbol; | |
13040 | } | |
4d1bb795 JB |
13041 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) |
13042 | { | |
13043 | const expressionS *e = symbol_get_value_expression (symbolP); | |
13044 | ||
3b55a1d0 JB |
13045 | know (e->X_op == O_register); |
13046 | know (e->X_add_number >= 0 | |
13047 | && (valueT) e->X_add_number < i386_regtab_size); | |
13048 | r = i386_regtab + e->X_add_number; | |
13049 | if (!check_register (r)) | |
8a6fb3f9 | 13050 | { |
3b55a1d0 JB |
13051 | as_bad (_("register '%s%s' cannot be used here"), |
13052 | register_prefix, r->reg_name); | |
13053 | r = &bad_reg; | |
8a6fb3f9 | 13054 | } |
3b55a1d0 | 13055 | *end_op = input_line_pointer; |
4d1bb795 JB |
13056 | } |
13057 | *input_line_pointer = c; | |
13058 | input_line_pointer = save; | |
13059 | } | |
13060 | return r; | |
13061 | } | |
13062 | ||
13063 | int | |
13064 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
13065 | { | |
4faaa10f | 13066 | const reg_entry *r = NULL; |
4d1bb795 JB |
13067 | char *end = input_line_pointer; |
13068 | ||
13069 | *end = *nextcharP; | |
4faaa10f JB |
13070 | if (*name == REGISTER_PREFIX || allow_naked_reg) |
13071 | r = parse_real_register (name, &input_line_pointer); | |
4d1bb795 JB |
13072 | if (r && end <= input_line_pointer) |
13073 | { | |
13074 | *nextcharP = *input_line_pointer; | |
13075 | *input_line_pointer = 0; | |
8a6fb3f9 JB |
13076 | if (r != &bad_reg) |
13077 | { | |
13078 | e->X_op = O_register; | |
13079 | e->X_add_number = r - i386_regtab; | |
13080 | } | |
13081 | else | |
13082 | e->X_op = O_illegal; | |
4d1bb795 JB |
13083 | return 1; |
13084 | } | |
13085 | input_line_pointer = end; | |
13086 | *end = 0; | |
ee86248c | 13087 | return intel_syntax ? i386_intel_parse_name (name, e) : 0; |
4d1bb795 JB |
13088 | } |
13089 | ||
13090 | void | |
13091 | md_operand (expressionS *e) | |
13092 | { | |
ee86248c JB |
13093 | char *end; |
13094 | const reg_entry *r; | |
4d1bb795 | 13095 | |
ee86248c JB |
13096 | switch (*input_line_pointer) |
13097 | { | |
13098 | case REGISTER_PREFIX: | |
13099 | r = parse_real_register (input_line_pointer, &end); | |
4d1bb795 JB |
13100 | if (r) |
13101 | { | |
13102 | e->X_op = O_register; | |
13103 | e->X_add_number = r - i386_regtab; | |
13104 | input_line_pointer = end; | |
13105 | } | |
ee86248c JB |
13106 | break; |
13107 | ||
13108 | case '[': | |
9c2799c2 | 13109 | gas_assert (intel_syntax); |
ee86248c JB |
13110 | end = input_line_pointer++; |
13111 | expression (e); | |
13112 | if (*input_line_pointer == ']') | |
13113 | { | |
13114 | ++input_line_pointer; | |
13115 | e->X_op_symbol = make_expr_symbol (e); | |
13116 | e->X_add_symbol = NULL; | |
13117 | e->X_add_number = 0; | |
13118 | e->X_op = O_index; | |
13119 | } | |
13120 | else | |
13121 | { | |
13122 | e->X_op = O_absent; | |
13123 | input_line_pointer = end; | |
13124 | } | |
13125 | break; | |
4d1bb795 JB |
13126 | } |
13127 | } | |
13128 | ||
252b5132 | 13129 | \f |
4cc782b5 | 13130 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
b6f8c7c4 | 13131 | const char *md_shortopts = "kVQ:sqnO::"; |
252b5132 | 13132 | #else |
b6f8c7c4 | 13133 | const char *md_shortopts = "qnO::"; |
252b5132 | 13134 | #endif |
6e0b89ee | 13135 | |
3e73aa7c | 13136 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
13137 | #define OPTION_64 (OPTION_MD_BASE + 1) |
13138 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
13139 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
13140 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
1efbbeb4 L |
13141 | #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5) |
13142 | #define OPTION_MSYNTAX (OPTION_MD_BASE + 6) | |
13143 | #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7) | |
13144 | #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8) | |
bd5dea88 | 13145 | #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9) |
c0f3af97 | 13146 | #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10) |
daf50ae7 | 13147 | #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11) |
7bab8ab5 JB |
13148 | #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12) |
13149 | #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13) | |
13150 | #define OPTION_X32 (OPTION_MD_BASE + 14) | |
7e8b059b | 13151 | #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15) |
43234a1e L |
13152 | #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16) |
13153 | #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17) | |
167ad85b | 13154 | #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18) |
d1982f93 | 13155 | #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19) |
d3d3c6db | 13156 | #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20) |
8dcea932 | 13157 | #define OPTION_MSHARED (OPTION_MD_BASE + 21) |
5db04b09 L |
13158 | #define OPTION_MAMD64 (OPTION_MD_BASE + 22) |
13159 | #define OPTION_MINTEL64 (OPTION_MD_BASE + 23) | |
e4e00185 | 13160 | #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24) |
b4a3a7b4 | 13161 | #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25) |
03751133 | 13162 | #define OPTION_MVEXWIG (OPTION_MD_BASE + 26) |
e379e5f3 L |
13163 | #define OPTION_MALIGN_BRANCH_BOUNDARY (OPTION_MD_BASE + 27) |
13164 | #define OPTION_MALIGN_BRANCH_PREFIX_SIZE (OPTION_MD_BASE + 28) | |
13165 | #define OPTION_MALIGN_BRANCH (OPTION_MD_BASE + 29) | |
76cf450b | 13166 | #define OPTION_MBRANCHES_WITH_32B_BOUNDARIES (OPTION_MD_BASE + 30) |
ae531041 L |
13167 | #define OPTION_MLFENCE_AFTER_LOAD (OPTION_MD_BASE + 31) |
13168 | #define OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH (OPTION_MD_BASE + 32) | |
13169 | #define OPTION_MLFENCE_BEFORE_RET (OPTION_MD_BASE + 33) | |
c8480b58 | 13170 | #define OPTION_MUSE_UNALIGNED_VECTOR_MOVE (OPTION_MD_BASE + 34) |
b3b91714 | 13171 | |
99ad8390 NC |
13172 | struct option md_longopts[] = |
13173 | { | |
3e73aa7c | 13174 | {"32", no_argument, NULL, OPTION_32}, |
321098a5 | 13175 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 13176 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c | 13177 | {"64", no_argument, NULL, OPTION_64}, |
351f65ca L |
13178 | #endif |
13179 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
570561f7 | 13180 | {"x32", no_argument, NULL, OPTION_X32}, |
8dcea932 | 13181 | {"mshared", no_argument, NULL, OPTION_MSHARED}, |
b4a3a7b4 | 13182 | {"mx86-used-note", required_argument, NULL, OPTION_X86_USED_NOTE}, |
6e0b89ee | 13183 | #endif |
b3b91714 | 13184 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
13185 | {"march", required_argument, NULL, OPTION_MARCH}, |
13186 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
1efbbeb4 L |
13187 | {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC}, |
13188 | {"msyntax", required_argument, NULL, OPTION_MSYNTAX}, | |
13189 | {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG}, | |
13190 | {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG}, | |
c0f3af97 | 13191 | {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX}, |
c8480b58 | 13192 | {"muse-unaligned-vector-move", no_argument, NULL, OPTION_MUSE_UNALIGNED_VECTOR_MOVE}, |
daf50ae7 | 13193 | {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK}, |
7bab8ab5 | 13194 | {"moperand-check", required_argument, NULL, OPTION_MOPERAND_CHECK}, |
539f890d | 13195 | {"mavxscalar", required_argument, NULL, OPTION_MAVXSCALAR}, |
03751133 | 13196 | {"mvexwig", required_argument, NULL, OPTION_MVEXWIG}, |
7e8b059b | 13197 | {"madd-bnd-prefix", no_argument, NULL, OPTION_MADD_BND_PREFIX}, |
43234a1e L |
13198 | {"mevexlig", required_argument, NULL, OPTION_MEVEXLIG}, |
13199 | {"mevexwig", required_argument, NULL, OPTION_MEVEXWIG}, | |
167ad85b TG |
13200 | # if defined (TE_PE) || defined (TE_PEP) |
13201 | {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ}, | |
13202 | #endif | |
d1982f93 | 13203 | {"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX}, |
e4e00185 | 13204 | {"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD}, |
0cb4071e | 13205 | {"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS}, |
d3d3c6db | 13206 | {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG}, |
e379e5f3 L |
13207 | {"malign-branch-boundary", required_argument, NULL, OPTION_MALIGN_BRANCH_BOUNDARY}, |
13208 | {"malign-branch-prefix-size", required_argument, NULL, OPTION_MALIGN_BRANCH_PREFIX_SIZE}, | |
13209 | {"malign-branch", required_argument, NULL, OPTION_MALIGN_BRANCH}, | |
76cf450b | 13210 | {"mbranches-within-32B-boundaries", no_argument, NULL, OPTION_MBRANCHES_WITH_32B_BOUNDARIES}, |
ae531041 L |
13211 | {"mlfence-after-load", required_argument, NULL, OPTION_MLFENCE_AFTER_LOAD}, |
13212 | {"mlfence-before-indirect-branch", required_argument, NULL, | |
13213 | OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH}, | |
13214 | {"mlfence-before-ret", required_argument, NULL, OPTION_MLFENCE_BEFORE_RET}, | |
5db04b09 L |
13215 | {"mamd64", no_argument, NULL, OPTION_MAMD64}, |
13216 | {"mintel64", no_argument, NULL, OPTION_MINTEL64}, | |
252b5132 RH |
13217 | {NULL, no_argument, NULL, 0} |
13218 | }; | |
13219 | size_t md_longopts_size = sizeof (md_longopts); | |
13220 | ||
13221 | int | |
17b9d67d | 13222 | md_parse_option (int c, const char *arg) |
252b5132 | 13223 | { |
91d6fa6a | 13224 | unsigned int j; |
e379e5f3 | 13225 | char *arch, *next, *saved, *type; |
9103f4f4 | 13226 | |
252b5132 RH |
13227 | switch (c) |
13228 | { | |
12b55ccc L |
13229 | case 'n': |
13230 | optimize_align_code = 0; | |
13231 | break; | |
13232 | ||
a38cf1db AM |
13233 | case 'q': |
13234 | quiet_warnings = 1; | |
252b5132 RH |
13235 | break; |
13236 | ||
13237 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
13238 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
13239 | should be emitted or not. FIXME: Not implemented. */ | |
13240 | case 'Q': | |
d4693039 JB |
13241 | if ((arg[0] != 'y' && arg[0] != 'n') || arg[1]) |
13242 | return 0; | |
252b5132 RH |
13243 | break; |
13244 | ||
13245 | /* -V: SVR4 argument to print version ID. */ | |
13246 | case 'V': | |
13247 | print_version_id (); | |
13248 | break; | |
13249 | ||
a38cf1db AM |
13250 | /* -k: Ignore for FreeBSD compatibility. */ |
13251 | case 'k': | |
252b5132 | 13252 | break; |
4cc782b5 ILT |
13253 | |
13254 | case 's': | |
13255 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 13256 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 13257 | break; |
8dcea932 L |
13258 | |
13259 | case OPTION_MSHARED: | |
13260 | shared = 1; | |
13261 | break; | |
b4a3a7b4 L |
13262 | |
13263 | case OPTION_X86_USED_NOTE: | |
13264 | if (strcasecmp (arg, "yes") == 0) | |
13265 | x86_used_note = 1; | |
13266 | else if (strcasecmp (arg, "no") == 0) | |
13267 | x86_used_note = 0; | |
13268 | else | |
13269 | as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg); | |
13270 | break; | |
13271 | ||
13272 | ||
99ad8390 | 13273 | #endif |
321098a5 | 13274 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 13275 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c JH |
13276 | case OPTION_64: |
13277 | { | |
13278 | const char **list, **l; | |
13279 | ||
3e73aa7c JH |
13280 | list = bfd_target_list (); |
13281 | for (l = list; *l != NULL; l++) | |
08dedd66 | 13282 | if (startswith (*l, "elf64-x86-64") |
99ad8390 NC |
13283 | || strcmp (*l, "coff-x86-64") == 0 |
13284 | || strcmp (*l, "pe-x86-64") == 0 | |
d382c579 TG |
13285 | || strcmp (*l, "pei-x86-64") == 0 |
13286 | || strcmp (*l, "mach-o-x86-64") == 0) | |
6e0b89ee AM |
13287 | { |
13288 | default_arch = "x86_64"; | |
13289 | break; | |
13290 | } | |
3e73aa7c | 13291 | if (*l == NULL) |
2b5d6a91 | 13292 | as_fatal (_("no compiled in support for x86_64")); |
3e73aa7c JH |
13293 | free (list); |
13294 | } | |
13295 | break; | |
13296 | #endif | |
252b5132 | 13297 | |
351f65ca | 13298 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
570561f7 | 13299 | case OPTION_X32: |
351f65ca L |
13300 | if (IS_ELF) |
13301 | { | |
13302 | const char **list, **l; | |
13303 | ||
13304 | list = bfd_target_list (); | |
13305 | for (l = list; *l != NULL; l++) | |
08dedd66 | 13306 | if (startswith (*l, "elf32-x86-64")) |
351f65ca L |
13307 | { |
13308 | default_arch = "x86_64:32"; | |
13309 | break; | |
13310 | } | |
13311 | if (*l == NULL) | |
2b5d6a91 | 13312 | as_fatal (_("no compiled in support for 32bit x86_64")); |
351f65ca L |
13313 | free (list); |
13314 | } | |
13315 | else | |
13316 | as_fatal (_("32bit x86_64 is only supported for ELF")); | |
13317 | break; | |
13318 | #endif | |
13319 | ||
6e0b89ee AM |
13320 | case OPTION_32: |
13321 | default_arch = "i386"; | |
13322 | break; | |
13323 | ||
b3b91714 AM |
13324 | case OPTION_DIVIDE: |
13325 | #ifdef SVR4_COMMENT_CHARS | |
13326 | { | |
13327 | char *n, *t; | |
13328 | const char *s; | |
13329 | ||
add39d23 | 13330 | n = XNEWVEC (char, strlen (i386_comment_chars) + 1); |
b3b91714 AM |
13331 | t = n; |
13332 | for (s = i386_comment_chars; *s != '\0'; s++) | |
13333 | if (*s != '/') | |
13334 | *t++ = *s; | |
13335 | *t = '\0'; | |
13336 | i386_comment_chars = n; | |
13337 | } | |
13338 | #endif | |
13339 | break; | |
13340 | ||
9103f4f4 | 13341 | case OPTION_MARCH: |
293f5f65 L |
13342 | saved = xstrdup (arg); |
13343 | arch = saved; | |
13344 | /* Allow -march=+nosse. */ | |
13345 | if (*arch == '+') | |
13346 | arch++; | |
6305a203 | 13347 | do |
9103f4f4 | 13348 | { |
6305a203 | 13349 | if (*arch == '.') |
2b5d6a91 | 13350 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
13351 | next = strchr (arch, '+'); |
13352 | if (next) | |
13353 | *next++ = '\0'; | |
91d6fa6a | 13354 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 13355 | { |
ae89daec JB |
13356 | if (arch == saved && cpu_arch[j].type != PROCESSOR_NONE |
13357 | && strcmp (arch, cpu_arch[j].name) == 0) | |
ccc9c027 | 13358 | { |
6305a203 | 13359 | /* Processor. */ |
ae89daec | 13360 | if (! cpu_arch[j].enable.bitfield.cpui386) |
1ded5609 JB |
13361 | continue; |
13362 | ||
91d6fa6a | 13363 | cpu_arch_name = cpu_arch[j].name; |
d92c7521 | 13364 | free (cpu_sub_arch_name); |
6305a203 | 13365 | cpu_sub_arch_name = NULL; |
ae89daec | 13366 | cpu_arch_flags = cpu_arch[j].enable; |
91d6fa6a | 13367 | cpu_arch_isa = cpu_arch[j].type; |
ae89daec | 13368 | cpu_arch_isa_flags = cpu_arch[j].enable; |
6305a203 L |
13369 | if (!cpu_arch_tune_set) |
13370 | { | |
13371 | cpu_arch_tune = cpu_arch_isa; | |
13372 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
13373 | } | |
13374 | break; | |
13375 | } | |
ae89daec JB |
13376 | else if (cpu_arch[j].type == PROCESSOR_NONE |
13377 | && strcmp (arch, cpu_arch[j].name) == 0 | |
13378 | && !cpu_flags_all_zero (&cpu_arch[j].enable)) | |
6305a203 | 13379 | { |
33eaf5de | 13380 | /* ISA extension. */ |
6305a203 | 13381 | i386_cpu_flags flags; |
309d3373 | 13382 | |
293f5f65 | 13383 | flags = cpu_flags_or (cpu_arch_flags, |
ae89daec | 13384 | cpu_arch[j].enable); |
81486035 | 13385 | |
5b64d091 | 13386 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
6305a203 | 13387 | { |
ae89daec | 13388 | extend_cpu_sub_arch_name (arch); |
6305a203 | 13389 | cpu_arch_flags = flags; |
a586129e | 13390 | cpu_arch_isa_flags = flags; |
6305a203 | 13391 | } |
0089dace L |
13392 | else |
13393 | cpu_arch_isa_flags | |
13394 | = cpu_flags_or (cpu_arch_isa_flags, | |
ae89daec | 13395 | cpu_arch[j].enable); |
6305a203 | 13396 | break; |
ccc9c027 | 13397 | } |
9103f4f4 | 13398 | } |
6305a203 | 13399 | |
ae89daec | 13400 | if (j >= ARRAY_SIZE (cpu_arch) && startswith (arch, "no")) |
293f5f65 | 13401 | { |
33eaf5de | 13402 | /* Disable an ISA extension. */ |
ae89daec JB |
13403 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
13404 | if (cpu_arch[j].type == PROCESSOR_NONE | |
13405 | && strcmp (arch + 2, cpu_arch[j].name) == 0) | |
293f5f65 L |
13406 | { |
13407 | i386_cpu_flags flags; | |
13408 | ||
13409 | flags = cpu_flags_and_not (cpu_arch_flags, | |
ae89daec | 13410 | cpu_arch[j].disable); |
293f5f65 L |
13411 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
13412 | { | |
8180707f | 13413 | extend_cpu_sub_arch_name (arch); |
293f5f65 L |
13414 | cpu_arch_flags = flags; |
13415 | cpu_arch_isa_flags = flags; | |
13416 | } | |
13417 | break; | |
13418 | } | |
293f5f65 L |
13419 | } |
13420 | ||
91d6fa6a | 13421 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 13422 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
13423 | |
13424 | arch = next; | |
9103f4f4 | 13425 | } |
293f5f65 L |
13426 | while (next != NULL); |
13427 | free (saved); | |
9103f4f4 L |
13428 | break; |
13429 | ||
13430 | case OPTION_MTUNE: | |
13431 | if (*arg == '.') | |
2b5d6a91 | 13432 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
91d6fa6a | 13433 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 13434 | { |
ae89daec JB |
13435 | if (cpu_arch[j].type != PROCESSOR_NONE |
13436 | && strcmp (arg, cpu_arch[j].name) == 0) | |
9103f4f4 | 13437 | { |
ccc9c027 | 13438 | cpu_arch_tune_set = 1; |
91d6fa6a | 13439 | cpu_arch_tune = cpu_arch [j].type; |
ae89daec | 13440 | cpu_arch_tune_flags = cpu_arch[j].enable; |
9103f4f4 L |
13441 | break; |
13442 | } | |
13443 | } | |
91d6fa6a | 13444 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 13445 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
9103f4f4 L |
13446 | break; |
13447 | ||
1efbbeb4 L |
13448 | case OPTION_MMNEMONIC: |
13449 | if (strcasecmp (arg, "att") == 0) | |
13450 | intel_mnemonic = 0; | |
13451 | else if (strcasecmp (arg, "intel") == 0) | |
13452 | intel_mnemonic = 1; | |
13453 | else | |
2b5d6a91 | 13454 | as_fatal (_("invalid -mmnemonic= option: `%s'"), arg); |
1efbbeb4 L |
13455 | break; |
13456 | ||
13457 | case OPTION_MSYNTAX: | |
13458 | if (strcasecmp (arg, "att") == 0) | |
13459 | intel_syntax = 0; | |
13460 | else if (strcasecmp (arg, "intel") == 0) | |
13461 | intel_syntax = 1; | |
13462 | else | |
2b5d6a91 | 13463 | as_fatal (_("invalid -msyntax= option: `%s'"), arg); |
1efbbeb4 L |
13464 | break; |
13465 | ||
13466 | case OPTION_MINDEX_REG: | |
13467 | allow_index_reg = 1; | |
13468 | break; | |
13469 | ||
13470 | case OPTION_MNAKED_REG: | |
13471 | allow_naked_reg = 1; | |
13472 | break; | |
13473 | ||
c0f3af97 L |
13474 | case OPTION_MSSE2AVX: |
13475 | sse2avx = 1; | |
13476 | break; | |
13477 | ||
c8480b58 L |
13478 | case OPTION_MUSE_UNALIGNED_VECTOR_MOVE: |
13479 | use_unaligned_vector_move = 1; | |
13480 | break; | |
13481 | ||
daf50ae7 L |
13482 | case OPTION_MSSE_CHECK: |
13483 | if (strcasecmp (arg, "error") == 0) | |
7bab8ab5 | 13484 | sse_check = check_error; |
daf50ae7 | 13485 | else if (strcasecmp (arg, "warning") == 0) |
7bab8ab5 | 13486 | sse_check = check_warning; |
daf50ae7 | 13487 | else if (strcasecmp (arg, "none") == 0) |
7bab8ab5 | 13488 | sse_check = check_none; |
daf50ae7 | 13489 | else |
2b5d6a91 | 13490 | as_fatal (_("invalid -msse-check= option: `%s'"), arg); |
daf50ae7 L |
13491 | break; |
13492 | ||
7bab8ab5 JB |
13493 | case OPTION_MOPERAND_CHECK: |
13494 | if (strcasecmp (arg, "error") == 0) | |
13495 | operand_check = check_error; | |
13496 | else if (strcasecmp (arg, "warning") == 0) | |
13497 | operand_check = check_warning; | |
13498 | else if (strcasecmp (arg, "none") == 0) | |
13499 | operand_check = check_none; | |
13500 | else | |
13501 | as_fatal (_("invalid -moperand-check= option: `%s'"), arg); | |
13502 | break; | |
13503 | ||
539f890d L |
13504 | case OPTION_MAVXSCALAR: |
13505 | if (strcasecmp (arg, "128") == 0) | |
13506 | avxscalar = vex128; | |
13507 | else if (strcasecmp (arg, "256") == 0) | |
13508 | avxscalar = vex256; | |
13509 | else | |
2b5d6a91 | 13510 | as_fatal (_("invalid -mavxscalar= option: `%s'"), arg); |
539f890d L |
13511 | break; |
13512 | ||
03751133 L |
13513 | case OPTION_MVEXWIG: |
13514 | if (strcmp (arg, "0") == 0) | |
40c9c8de | 13515 | vexwig = vexw0; |
03751133 | 13516 | else if (strcmp (arg, "1") == 0) |
40c9c8de | 13517 | vexwig = vexw1; |
03751133 L |
13518 | else |
13519 | as_fatal (_("invalid -mvexwig= option: `%s'"), arg); | |
13520 | break; | |
13521 | ||
7e8b059b L |
13522 | case OPTION_MADD_BND_PREFIX: |
13523 | add_bnd_prefix = 1; | |
13524 | break; | |
13525 | ||
43234a1e L |
13526 | case OPTION_MEVEXLIG: |
13527 | if (strcmp (arg, "128") == 0) | |
13528 | evexlig = evexl128; | |
13529 | else if (strcmp (arg, "256") == 0) | |
13530 | evexlig = evexl256; | |
13531 | else if (strcmp (arg, "512") == 0) | |
13532 | evexlig = evexl512; | |
13533 | else | |
13534 | as_fatal (_("invalid -mevexlig= option: `%s'"), arg); | |
13535 | break; | |
13536 | ||
d3d3c6db IT |
13537 | case OPTION_MEVEXRCIG: |
13538 | if (strcmp (arg, "rne") == 0) | |
13539 | evexrcig = rne; | |
13540 | else if (strcmp (arg, "rd") == 0) | |
13541 | evexrcig = rd; | |
13542 | else if (strcmp (arg, "ru") == 0) | |
13543 | evexrcig = ru; | |
13544 | else if (strcmp (arg, "rz") == 0) | |
13545 | evexrcig = rz; | |
13546 | else | |
13547 | as_fatal (_("invalid -mevexrcig= option: `%s'"), arg); | |
13548 | break; | |
13549 | ||
43234a1e L |
13550 | case OPTION_MEVEXWIG: |
13551 | if (strcmp (arg, "0") == 0) | |
13552 | evexwig = evexw0; | |
13553 | else if (strcmp (arg, "1") == 0) | |
13554 | evexwig = evexw1; | |
13555 | else | |
13556 | as_fatal (_("invalid -mevexwig= option: `%s'"), arg); | |
13557 | break; | |
13558 | ||
167ad85b TG |
13559 | # if defined (TE_PE) || defined (TE_PEP) |
13560 | case OPTION_MBIG_OBJ: | |
13561 | use_big_obj = 1; | |
13562 | break; | |
13563 | #endif | |
13564 | ||
d1982f93 | 13565 | case OPTION_MOMIT_LOCK_PREFIX: |
d022bddd IT |
13566 | if (strcasecmp (arg, "yes") == 0) |
13567 | omit_lock_prefix = 1; | |
13568 | else if (strcasecmp (arg, "no") == 0) | |
13569 | omit_lock_prefix = 0; | |
13570 | else | |
13571 | as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg); | |
13572 | break; | |
13573 | ||
e4e00185 AS |
13574 | case OPTION_MFENCE_AS_LOCK_ADD: |
13575 | if (strcasecmp (arg, "yes") == 0) | |
13576 | avoid_fence = 1; | |
13577 | else if (strcasecmp (arg, "no") == 0) | |
13578 | avoid_fence = 0; | |
13579 | else | |
13580 | as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg); | |
13581 | break; | |
13582 | ||
ae531041 L |
13583 | case OPTION_MLFENCE_AFTER_LOAD: |
13584 | if (strcasecmp (arg, "yes") == 0) | |
13585 | lfence_after_load = 1; | |
13586 | else if (strcasecmp (arg, "no") == 0) | |
13587 | lfence_after_load = 0; | |
13588 | else | |
13589 | as_fatal (_("invalid -mlfence-after-load= option: `%s'"), arg); | |
13590 | break; | |
13591 | ||
13592 | case OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH: | |
13593 | if (strcasecmp (arg, "all") == 0) | |
a09f656b | 13594 | { |
13595 | lfence_before_indirect_branch = lfence_branch_all; | |
13596 | if (lfence_before_ret == lfence_before_ret_none) | |
13597 | lfence_before_ret = lfence_before_ret_shl; | |
13598 | } | |
ae531041 L |
13599 | else if (strcasecmp (arg, "memory") == 0) |
13600 | lfence_before_indirect_branch = lfence_branch_memory; | |
13601 | else if (strcasecmp (arg, "register") == 0) | |
13602 | lfence_before_indirect_branch = lfence_branch_register; | |
13603 | else if (strcasecmp (arg, "none") == 0) | |
13604 | lfence_before_indirect_branch = lfence_branch_none; | |
13605 | else | |
13606 | as_fatal (_("invalid -mlfence-before-indirect-branch= option: `%s'"), | |
13607 | arg); | |
13608 | break; | |
13609 | ||
13610 | case OPTION_MLFENCE_BEFORE_RET: | |
13611 | if (strcasecmp (arg, "or") == 0) | |
13612 | lfence_before_ret = lfence_before_ret_or; | |
13613 | else if (strcasecmp (arg, "not") == 0) | |
13614 | lfence_before_ret = lfence_before_ret_not; | |
a09f656b | 13615 | else if (strcasecmp (arg, "shl") == 0 || strcasecmp (arg, "yes") == 0) |
13616 | lfence_before_ret = lfence_before_ret_shl; | |
ae531041 L |
13617 | else if (strcasecmp (arg, "none") == 0) |
13618 | lfence_before_ret = lfence_before_ret_none; | |
13619 | else | |
13620 | as_fatal (_("invalid -mlfence-before-ret= option: `%s'"), | |
13621 | arg); | |
13622 | break; | |
13623 | ||
0cb4071e L |
13624 | case OPTION_MRELAX_RELOCATIONS: |
13625 | if (strcasecmp (arg, "yes") == 0) | |
13626 | generate_relax_relocations = 1; | |
13627 | else if (strcasecmp (arg, "no") == 0) | |
13628 | generate_relax_relocations = 0; | |
13629 | else | |
13630 | as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg); | |
13631 | break; | |
13632 | ||
e379e5f3 L |
13633 | case OPTION_MALIGN_BRANCH_BOUNDARY: |
13634 | { | |
13635 | char *end; | |
13636 | long int align = strtoul (arg, &end, 0); | |
13637 | if (*end == '\0') | |
13638 | { | |
13639 | if (align == 0) | |
13640 | { | |
13641 | align_branch_power = 0; | |
13642 | break; | |
13643 | } | |
13644 | else if (align >= 16) | |
13645 | { | |
13646 | int align_power; | |
13647 | for (align_power = 0; | |
13648 | (align & 1) == 0; | |
13649 | align >>= 1, align_power++) | |
13650 | continue; | |
13651 | /* Limit alignment power to 31. */ | |
13652 | if (align == 1 && align_power < 32) | |
13653 | { | |
13654 | align_branch_power = align_power; | |
13655 | break; | |
13656 | } | |
13657 | } | |
13658 | } | |
13659 | as_fatal (_("invalid -malign-branch-boundary= value: %s"), arg); | |
13660 | } | |
13661 | break; | |
13662 | ||
13663 | case OPTION_MALIGN_BRANCH_PREFIX_SIZE: | |
13664 | { | |
13665 | char *end; | |
13666 | int align = strtoul (arg, &end, 0); | |
13667 | /* Some processors only support 5 prefixes. */ | |
13668 | if (*end == '\0' && align >= 0 && align < 6) | |
13669 | { | |
13670 | align_branch_prefix_size = align; | |
13671 | break; | |
13672 | } | |
13673 | as_fatal (_("invalid -malign-branch-prefix-size= value: %s"), | |
13674 | arg); | |
13675 | } | |
13676 | break; | |
13677 | ||
13678 | case OPTION_MALIGN_BRANCH: | |
13679 | align_branch = 0; | |
13680 | saved = xstrdup (arg); | |
13681 | type = saved; | |
13682 | do | |
13683 | { | |
13684 | next = strchr (type, '+'); | |
13685 | if (next) | |
13686 | *next++ = '\0'; | |
13687 | if (strcasecmp (type, "jcc") == 0) | |
13688 | align_branch |= align_branch_jcc_bit; | |
13689 | else if (strcasecmp (type, "fused") == 0) | |
13690 | align_branch |= align_branch_fused_bit; | |
13691 | else if (strcasecmp (type, "jmp") == 0) | |
13692 | align_branch |= align_branch_jmp_bit; | |
13693 | else if (strcasecmp (type, "call") == 0) | |
13694 | align_branch |= align_branch_call_bit; | |
13695 | else if (strcasecmp (type, "ret") == 0) | |
13696 | align_branch |= align_branch_ret_bit; | |
13697 | else if (strcasecmp (type, "indirect") == 0) | |
13698 | align_branch |= align_branch_indirect_bit; | |
13699 | else | |
13700 | as_fatal (_("invalid -malign-branch= option: `%s'"), arg); | |
13701 | type = next; | |
13702 | } | |
13703 | while (next != NULL); | |
13704 | free (saved); | |
13705 | break; | |
13706 | ||
76cf450b L |
13707 | case OPTION_MBRANCHES_WITH_32B_BOUNDARIES: |
13708 | align_branch_power = 5; | |
13709 | align_branch_prefix_size = 5; | |
13710 | align_branch = (align_branch_jcc_bit | |
13711 | | align_branch_fused_bit | |
13712 | | align_branch_jmp_bit); | |
13713 | break; | |
13714 | ||
5db04b09 | 13715 | case OPTION_MAMD64: |
4b5aaf5f | 13716 | isa64 = amd64; |
5db04b09 L |
13717 | break; |
13718 | ||
13719 | case OPTION_MINTEL64: | |
4b5aaf5f | 13720 | isa64 = intel64; |
5db04b09 L |
13721 | break; |
13722 | ||
b6f8c7c4 L |
13723 | case 'O': |
13724 | if (arg == NULL) | |
13725 | { | |
13726 | optimize = 1; | |
13727 | /* Turn off -Os. */ | |
13728 | optimize_for_space = 0; | |
13729 | } | |
13730 | else if (*arg == 's') | |
13731 | { | |
13732 | optimize_for_space = 1; | |
13733 | /* Turn on all encoding optimizations. */ | |
41fd2579 | 13734 | optimize = INT_MAX; |
b6f8c7c4 L |
13735 | } |
13736 | else | |
13737 | { | |
13738 | optimize = atoi (arg); | |
13739 | /* Turn off -Os. */ | |
13740 | optimize_for_space = 0; | |
13741 | } | |
13742 | break; | |
13743 | ||
252b5132 RH |
13744 | default: |
13745 | return 0; | |
13746 | } | |
13747 | return 1; | |
13748 | } | |
13749 | ||
8a2c8fef L |
13750 | #define MESSAGE_TEMPLATE \ |
13751 | " " | |
13752 | ||
293f5f65 L |
13753 | static char * |
13754 | output_message (FILE *stream, char *p, char *message, char *start, | |
13755 | int *left_p, const char *name, int len) | |
13756 | { | |
13757 | int size = sizeof (MESSAGE_TEMPLATE); | |
13758 | int left = *left_p; | |
13759 | ||
13760 | /* Reserve 2 spaces for ", " or ",\0" */ | |
13761 | left -= len + 2; | |
13762 | ||
13763 | /* Check if there is any room. */ | |
13764 | if (left >= 0) | |
13765 | { | |
13766 | if (p != start) | |
13767 | { | |
13768 | *p++ = ','; | |
13769 | *p++ = ' '; | |
13770 | } | |
13771 | p = mempcpy (p, name, len); | |
13772 | } | |
13773 | else | |
13774 | { | |
13775 | /* Output the current message now and start a new one. */ | |
13776 | *p++ = ','; | |
13777 | *p = '\0'; | |
13778 | fprintf (stream, "%s\n", message); | |
13779 | p = start; | |
13780 | left = size - (start - message) - len - 2; | |
13781 | ||
13782 | gas_assert (left >= 0); | |
13783 | ||
13784 | p = mempcpy (p, name, len); | |
13785 | } | |
13786 | ||
13787 | *left_p = left; | |
13788 | return p; | |
13789 | } | |
13790 | ||
8a2c8fef | 13791 | static void |
1ded5609 | 13792 | show_arch (FILE *stream, int ext, int check) |
8a2c8fef L |
13793 | { |
13794 | static char message[] = MESSAGE_TEMPLATE; | |
13795 | char *start = message + 27; | |
13796 | char *p; | |
13797 | int size = sizeof (MESSAGE_TEMPLATE); | |
13798 | int left; | |
13799 | const char *name; | |
13800 | int len; | |
13801 | unsigned int j; | |
13802 | ||
13803 | p = start; | |
13804 | left = size - (start - message); | |
3ce2ebcf JB |
13805 | |
13806 | if (!ext && check) | |
13807 | { | |
13808 | p = output_message (stream, p, message, start, &left, | |
13809 | STRING_COMMA_LEN ("default")); | |
f68697e8 JB |
13810 | p = output_message (stream, p, message, start, &left, |
13811 | STRING_COMMA_LEN ("push")); | |
13812 | p = output_message (stream, p, message, start, &left, | |
13813 | STRING_COMMA_LEN ("pop")); | |
3ce2ebcf JB |
13814 | } |
13815 | ||
8a2c8fef L |
13816 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
13817 | { | |
13818 | /* Should it be skipped? */ | |
13819 | if (cpu_arch [j].skip) | |
13820 | continue; | |
13821 | ||
13822 | name = cpu_arch [j].name; | |
13823 | len = cpu_arch [j].len; | |
ae89daec | 13824 | if (cpu_arch[j].type == PROCESSOR_NONE) |
8a2c8fef L |
13825 | { |
13826 | /* It is an extension. Skip if we aren't asked to show it. */ | |
ae89daec | 13827 | if (!ext || cpu_flags_all_zero (&cpu_arch[j].enable)) |
8a2c8fef L |
13828 | continue; |
13829 | } | |
13830 | else if (ext) | |
13831 | { | |
13832 | /* It is an processor. Skip if we show only extension. */ | |
13833 | continue; | |
13834 | } | |
ae89daec | 13835 | else if (check && ! cpu_arch[j].enable.bitfield.cpui386) |
1ded5609 JB |
13836 | { |
13837 | /* It is an impossible processor - skip. */ | |
13838 | continue; | |
13839 | } | |
8a2c8fef | 13840 | |
293f5f65 | 13841 | p = output_message (stream, p, message, start, &left, name, len); |
8a2c8fef L |
13842 | } |
13843 | ||
293f5f65 L |
13844 | /* Display disabled extensions. */ |
13845 | if (ext) | |
ae89daec | 13846 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
293f5f65 | 13847 | { |
ae89daec JB |
13848 | char *str; |
13849 | ||
13850 | if (cpu_arch[j].type != PROCESSOR_NONE | |
13851 | || !cpu_flags_all_zero (&cpu_arch[j].enable)) | |
13852 | continue; | |
13853 | str = xasprintf ("no%s", cpu_arch[j].name); | |
13854 | p = output_message (stream, p, message, start, &left, str, | |
13855 | strlen (str)); | |
13856 | free (str); | |
293f5f65 L |
13857 | } |
13858 | ||
8a2c8fef L |
13859 | *p = '\0'; |
13860 | fprintf (stream, "%s\n", message); | |
13861 | } | |
13862 | ||
252b5132 | 13863 | void |
8a2c8fef | 13864 | md_show_usage (FILE *stream) |
252b5132 | 13865 | { |
4cc782b5 ILT |
13866 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
13867 | fprintf (stream, _("\ | |
d4693039 | 13868 | -Qy, -Qn ignored\n\ |
a38cf1db | 13869 | -V print assembler version number\n\ |
b3b91714 AM |
13870 | -k ignored\n")); |
13871 | #endif | |
13872 | fprintf (stream, _("\ | |
7ebd68d1 NC |
13873 | -n do not optimize code alignment\n\ |
13874 | -O{012s} attempt some code optimizations\n\ | |
b3b91714 AM |
13875 | -q quieten some warnings\n")); |
13876 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13877 | fprintf (stream, _("\ | |
a38cf1db | 13878 | -s ignored\n")); |
b3b91714 | 13879 | #endif |
b00af7c8 JB |
13880 | #ifdef BFD64 |
13881 | # if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13882 | fprintf (stream, _("\ | |
13883 | --32/--64/--x32 generate 32bit/64bit/x32 object\n")); | |
13884 | # elif defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O) | |
751d281c | 13885 | fprintf (stream, _("\ |
b00af7c8 JB |
13886 | --32/--64 generate 32bit/64bit object\n")); |
13887 | # endif | |
751d281c | 13888 | #endif |
b3b91714 AM |
13889 | #ifdef SVR4_COMMENT_CHARS |
13890 | fprintf (stream, _("\ | |
13891 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
13892 | #else |
13893 | fprintf (stream, _("\ | |
b3b91714 | 13894 | --divide ignored\n")); |
4cc782b5 | 13895 | #endif |
9103f4f4 | 13896 | fprintf (stream, _("\ |
6305a203 | 13897 | -march=CPU[,+EXTENSION...]\n\ |
8a2c8fef | 13898 | generate code for CPU and EXTENSION, CPU is one of:\n")); |
1ded5609 | 13899 | show_arch (stream, 0, 1); |
8a2c8fef | 13900 | fprintf (stream, _("\ |
ae89daec | 13901 | EXTENSION is combination of (possibly \"no\"-prefixed):\n")); |
1ded5609 | 13902 | show_arch (stream, 1, 0); |
6305a203 | 13903 | fprintf (stream, _("\ |
8a2c8fef | 13904 | -mtune=CPU optimize for CPU, CPU is one of:\n")); |
1ded5609 | 13905 | show_arch (stream, 0, 0); |
ba104c83 | 13906 | fprintf (stream, _("\ |
c0f3af97 L |
13907 | -msse2avx encode SSE instructions with VEX prefix\n")); |
13908 | fprintf (stream, _("\ | |
c8480b58 L |
13909 | -muse-unaligned-vector-move\n\ |
13910 | encode aligned vector move as unaligned vector move\n")); | |
13911 | fprintf (stream, _("\ | |
7c5c05ef | 13912 | -msse-check=[none|error|warning] (default: warning)\n\ |
daf50ae7 L |
13913 | check SSE instructions\n")); |
13914 | fprintf (stream, _("\ | |
7c5c05ef | 13915 | -moperand-check=[none|error|warning] (default: warning)\n\ |
7bab8ab5 JB |
13916 | check operand combinations for validity\n")); |
13917 | fprintf (stream, _("\ | |
7c5c05ef L |
13918 | -mavxscalar=[128|256] (default: 128)\n\ |
13919 | encode scalar AVX instructions with specific vector\n\ | |
539f890d L |
13920 | length\n")); |
13921 | fprintf (stream, _("\ | |
03751133 L |
13922 | -mvexwig=[0|1] (default: 0)\n\ |
13923 | encode VEX instructions with specific VEX.W value\n\ | |
13924 | for VEX.W bit ignored instructions\n")); | |
13925 | fprintf (stream, _("\ | |
7c5c05ef L |
13926 | -mevexlig=[128|256|512] (default: 128)\n\ |
13927 | encode scalar EVEX instructions with specific vector\n\ | |
43234a1e L |
13928 | length\n")); |
13929 | fprintf (stream, _("\ | |
7c5c05ef L |
13930 | -mevexwig=[0|1] (default: 0)\n\ |
13931 | encode EVEX instructions with specific EVEX.W value\n\ | |
43234a1e L |
13932 | for EVEX.W bit ignored instructions\n")); |
13933 | fprintf (stream, _("\ | |
7c5c05ef | 13934 | -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\ |
d3d3c6db IT |
13935 | encode EVEX instructions with specific EVEX.RC value\n\ |
13936 | for SAE-only ignored instructions\n")); | |
13937 | fprintf (stream, _("\ | |
7c5c05ef L |
13938 | -mmnemonic=[att|intel] ")); |
13939 | if (SYSV386_COMPAT) | |
13940 | fprintf (stream, _("(default: att)\n")); | |
13941 | else | |
13942 | fprintf (stream, _("(default: intel)\n")); | |
13943 | fprintf (stream, _("\ | |
13944 | use AT&T/Intel mnemonic\n")); | |
ba104c83 | 13945 | fprintf (stream, _("\ |
7c5c05ef L |
13946 | -msyntax=[att|intel] (default: att)\n\ |
13947 | use AT&T/Intel syntax\n")); | |
ba104c83 L |
13948 | fprintf (stream, _("\ |
13949 | -mindex-reg support pseudo index registers\n")); | |
13950 | fprintf (stream, _("\ | |
13951 | -mnaked-reg don't require `%%' prefix for registers\n")); | |
13952 | fprintf (stream, _("\ | |
7e8b059b | 13953 | -madd-bnd-prefix add BND prefix for all valid branches\n")); |
b4a3a7b4 | 13954 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8dcea932 L |
13955 | fprintf (stream, _("\ |
13956 | -mshared disable branch optimization for shared code\n")); | |
b4a3a7b4 L |
13957 | fprintf (stream, _("\ |
13958 | -mx86-used-note=[no|yes] ")); | |
13959 | if (DEFAULT_X86_USED_NOTE) | |
13960 | fprintf (stream, _("(default: yes)\n")); | |
13961 | else | |
13962 | fprintf (stream, _("(default: no)\n")); | |
13963 | fprintf (stream, _("\ | |
13964 | generate x86 used ISA and feature properties\n")); | |
13965 | #endif | |
13966 | #if defined (TE_PE) || defined (TE_PEP) | |
167ad85b TG |
13967 | fprintf (stream, _("\ |
13968 | -mbig-obj generate big object files\n")); | |
13969 | #endif | |
d022bddd | 13970 | fprintf (stream, _("\ |
7c5c05ef | 13971 | -momit-lock-prefix=[no|yes] (default: no)\n\ |
d022bddd | 13972 | strip all lock prefixes\n")); |
5db04b09 | 13973 | fprintf (stream, _("\ |
7c5c05ef | 13974 | -mfence-as-lock-add=[no|yes] (default: no)\n\ |
e4e00185 AS |
13975 | encode lfence, mfence and sfence as\n\ |
13976 | lock addl $0x0, (%%{re}sp)\n")); | |
13977 | fprintf (stream, _("\ | |
7c5c05ef L |
13978 | -mrelax-relocations=[no|yes] ")); |
13979 | if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS) | |
13980 | fprintf (stream, _("(default: yes)\n")); | |
13981 | else | |
13982 | fprintf (stream, _("(default: no)\n")); | |
13983 | fprintf (stream, _("\ | |
0cb4071e L |
13984 | generate relax relocations\n")); |
13985 | fprintf (stream, _("\ | |
e379e5f3 L |
13986 | -malign-branch-boundary=NUM (default: 0)\n\ |
13987 | align branches within NUM byte boundary\n")); | |
13988 | fprintf (stream, _("\ | |
13989 | -malign-branch=TYPE[+TYPE...] (default: jcc+fused+jmp)\n\ | |
13990 | TYPE is combination of jcc, fused, jmp, call, ret,\n\ | |
13991 | indirect\n\ | |
13992 | specify types of branches to align\n")); | |
13993 | fprintf (stream, _("\ | |
13994 | -malign-branch-prefix-size=NUM (default: 5)\n\ | |
13995 | align branches with NUM prefixes per instruction\n")); | |
13996 | fprintf (stream, _("\ | |
76cf450b L |
13997 | -mbranches-within-32B-boundaries\n\ |
13998 | align branches within 32 byte boundary\n")); | |
13999 | fprintf (stream, _("\ | |
ae531041 L |
14000 | -mlfence-after-load=[no|yes] (default: no)\n\ |
14001 | generate lfence after load\n")); | |
14002 | fprintf (stream, _("\ | |
14003 | -mlfence-before-indirect-branch=[none|all|register|memory] (default: none)\n\ | |
14004 | generate lfence before indirect near branch\n")); | |
14005 | fprintf (stream, _("\ | |
a09f656b | 14006 | -mlfence-before-ret=[none|or|not|shl|yes] (default: none)\n\ |
ae531041 L |
14007 | generate lfence before ret\n")); |
14008 | fprintf (stream, _("\ | |
7c5c05ef | 14009 | -mamd64 accept only AMD64 ISA [default]\n")); |
5db04b09 L |
14010 | fprintf (stream, _("\ |
14011 | -mintel64 accept only Intel64 ISA\n")); | |
252b5132 RH |
14012 | } |
14013 | ||
3e73aa7c | 14014 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
321098a5 | 14015 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
e57f8c65 | 14016 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
252b5132 RH |
14017 | |
14018 | /* Pick the target format to use. */ | |
14019 | ||
47926f60 | 14020 | const char * |
e3bb37b5 | 14021 | i386_target_format (void) |
252b5132 | 14022 | { |
d34049e8 | 14023 | if (startswith (default_arch, "x86_64")) |
351f65ca L |
14024 | { |
14025 | update_code_flag (CODE_64BIT, 1); | |
14026 | if (default_arch[6] == '\0') | |
7f56bc95 | 14027 | x86_elf_abi = X86_64_ABI; |
351f65ca | 14028 | else |
7f56bc95 | 14029 | x86_elf_abi = X86_64_X32_ABI; |
351f65ca | 14030 | } |
3e73aa7c | 14031 | else if (!strcmp (default_arch, "i386")) |
78f12dd3 | 14032 | update_code_flag (CODE_32BIT, 1); |
5197d474 L |
14033 | else if (!strcmp (default_arch, "iamcu")) |
14034 | { | |
14035 | update_code_flag (CODE_32BIT, 1); | |
14036 | if (cpu_arch_isa == PROCESSOR_UNKNOWN) | |
14037 | { | |
14038 | static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS; | |
14039 | cpu_arch_name = "iamcu"; | |
d92c7521 | 14040 | free (cpu_sub_arch_name); |
5197d474 L |
14041 | cpu_sub_arch_name = NULL; |
14042 | cpu_arch_flags = iamcu_flags; | |
14043 | cpu_arch_isa = PROCESSOR_IAMCU; | |
14044 | cpu_arch_isa_flags = iamcu_flags; | |
14045 | if (!cpu_arch_tune_set) | |
14046 | { | |
14047 | cpu_arch_tune = cpu_arch_isa; | |
14048 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
14049 | } | |
14050 | } | |
8d471ec1 | 14051 | else if (cpu_arch_isa != PROCESSOR_IAMCU) |
5197d474 L |
14052 | as_fatal (_("Intel MCU doesn't support `%s' architecture"), |
14053 | cpu_arch_name); | |
14054 | } | |
3e73aa7c | 14055 | else |
2b5d6a91 | 14056 | as_fatal (_("unknown architecture")); |
89507696 JB |
14057 | |
14058 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) | |
ae89daec | 14059 | cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
89507696 | 14060 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
ae89daec | 14061 | cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
89507696 | 14062 | |
252b5132 RH |
14063 | switch (OUTPUT_FLAVOR) |
14064 | { | |
9384f2ff | 14065 | #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT) |
4c63da97 | 14066 | case bfd_target_aout_flavour: |
47926f60 | 14067 | return AOUT_TARGET_FORMAT; |
4c63da97 | 14068 | #endif |
9384f2ff AM |
14069 | #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF) |
14070 | # if defined (TE_PE) || defined (TE_PEP) | |
14071 | case bfd_target_coff_flavour: | |
167ad85b | 14072 | if (flag_code == CODE_64BIT) |
eb19308f JB |
14073 | { |
14074 | object_64bit = 1; | |
14075 | return use_big_obj ? "pe-bigobj-x86-64" : "pe-x86-64"; | |
14076 | } | |
14077 | return use_big_obj ? "pe-bigobj-i386" : "pe-i386"; | |
9384f2ff | 14078 | # elif defined (TE_GO32) |
0561d57c JK |
14079 | case bfd_target_coff_flavour: |
14080 | return "coff-go32"; | |
9384f2ff | 14081 | # else |
252b5132 RH |
14082 | case bfd_target_coff_flavour: |
14083 | return "coff-i386"; | |
9384f2ff | 14084 | # endif |
4c63da97 | 14085 | #endif |
3e73aa7c | 14086 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 14087 | case bfd_target_elf_flavour: |
3e73aa7c | 14088 | { |
351f65ca L |
14089 | const char *format; |
14090 | ||
14091 | switch (x86_elf_abi) | |
4fa24527 | 14092 | { |
351f65ca L |
14093 | default: |
14094 | format = ELF_TARGET_FORMAT; | |
e379e5f3 L |
14095 | #ifndef TE_SOLARIS |
14096 | tls_get_addr = "___tls_get_addr"; | |
14097 | #endif | |
351f65ca | 14098 | break; |
7f56bc95 | 14099 | case X86_64_ABI: |
351f65ca | 14100 | use_rela_relocations = 1; |
4fa24527 | 14101 | object_64bit = 1; |
e379e5f3 L |
14102 | #ifndef TE_SOLARIS |
14103 | tls_get_addr = "__tls_get_addr"; | |
14104 | #endif | |
351f65ca L |
14105 | format = ELF_TARGET_FORMAT64; |
14106 | break; | |
7f56bc95 | 14107 | case X86_64_X32_ABI: |
4fa24527 | 14108 | use_rela_relocations = 1; |
351f65ca | 14109 | object_64bit = 1; |
e379e5f3 L |
14110 | #ifndef TE_SOLARIS |
14111 | tls_get_addr = "__tls_get_addr"; | |
14112 | #endif | |
862be3fb | 14113 | disallow_64bit_reloc = 1; |
351f65ca L |
14114 | format = ELF_TARGET_FORMAT32; |
14115 | break; | |
4fa24527 | 14116 | } |
c085ab00 | 14117 | if (cpu_arch_isa == PROCESSOR_IAMCU) |
81486035 L |
14118 | { |
14119 | if (x86_elf_abi != I386_ABI) | |
14120 | as_fatal (_("Intel MCU is 32bit only")); | |
14121 | return ELF_TARGET_IAMCU_FORMAT; | |
14122 | } | |
8a9036a4 | 14123 | else |
351f65ca | 14124 | return format; |
3e73aa7c | 14125 | } |
e57f8c65 TG |
14126 | #endif |
14127 | #if defined (OBJ_MACH_O) | |
14128 | case bfd_target_mach_o_flavour: | |
d382c579 TG |
14129 | if (flag_code == CODE_64BIT) |
14130 | { | |
14131 | use_rela_relocations = 1; | |
14132 | object_64bit = 1; | |
14133 | return "mach-o-x86-64"; | |
14134 | } | |
14135 | else | |
14136 | return "mach-o-i386"; | |
4c63da97 | 14137 | #endif |
252b5132 RH |
14138 | default: |
14139 | abort (); | |
14140 | return NULL; | |
14141 | } | |
14142 | } | |
14143 | ||
47926f60 | 14144 | #endif /* OBJ_MAYBE_ more than one */ |
252b5132 | 14145 | \f |
252b5132 | 14146 | symbolS * |
7016a5d5 | 14147 | md_undefined_symbol (char *name) |
252b5132 | 14148 | { |
18dc2407 ILT |
14149 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
14150 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
14151 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
14152 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
14153 | { |
14154 | if (!GOT_symbol) | |
14155 | { | |
14156 | if (symbol_find (name)) | |
14157 | as_bad (_("GOT already in symbol table")); | |
14158 | GOT_symbol = symbol_new (name, undefined_section, | |
e01e1cee | 14159 | &zero_address_frag, 0); |
24eab124 AM |
14160 | }; |
14161 | return GOT_symbol; | |
14162 | } | |
252b5132 RH |
14163 | return 0; |
14164 | } | |
14165 | ||
14166 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 14167 | |
252b5132 | 14168 | valueT |
7016a5d5 | 14169 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) |
252b5132 | 14170 | { |
4c63da97 AM |
14171 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
14172 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
14173 | { | |
14174 | /* For a.out, force the section size to be aligned. If we don't do | |
14175 | this, BFD will align it for us, but it will not write out the | |
14176 | final bytes of the section. This may be a bug in BFD, but it is | |
14177 | easier to fix it here since that is how the other a.out targets | |
14178 | work. */ | |
14179 | int align; | |
14180 | ||
fd361982 | 14181 | align = bfd_section_alignment (segment); |
8d3842cd | 14182 | size = ((size + (1 << align) - 1) & (-((valueT) 1 << align))); |
4c63da97 | 14183 | } |
252b5132 RH |
14184 | #endif |
14185 | ||
14186 | return size; | |
14187 | } | |
14188 | ||
14189 | /* On the i386, PC-relative offsets are relative to the start of the | |
14190 | next instruction. That is, the address of the offset, plus its | |
14191 | size, since the offset is always the last part of the insn. */ | |
14192 | ||
14193 | long | |
e3bb37b5 | 14194 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
14195 | { |
14196 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
14197 | } | |
14198 | ||
14199 | #ifndef I386COFF | |
14200 | ||
14201 | static void | |
e3bb37b5 | 14202 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 14203 | { |
29b0f896 | 14204 | int temp; |
252b5132 | 14205 | |
8a75718c JB |
14206 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
14207 | if (IS_ELF) | |
14208 | obj_elf_section_change_hook (); | |
14209 | #endif | |
252b5132 RH |
14210 | temp = get_absolute_expression (); |
14211 | subseg_set (bss_section, (subsegT) temp); | |
14212 | demand_empty_rest_of_line (); | |
14213 | } | |
14214 | ||
14215 | #endif | |
14216 | ||
e379e5f3 L |
14217 | /* Remember constant directive. */ |
14218 | ||
14219 | void | |
14220 | i386_cons_align (int ignore ATTRIBUTE_UNUSED) | |
14221 | { | |
14222 | if (last_insn.kind != last_insn_directive | |
14223 | && (bfd_section_flags (now_seg) & SEC_CODE)) | |
14224 | { | |
14225 | last_insn.seg = now_seg; | |
14226 | last_insn.kind = last_insn_directive; | |
14227 | last_insn.name = "constant directive"; | |
14228 | last_insn.file = as_where (&last_insn.line); | |
ae531041 L |
14229 | if (lfence_before_ret != lfence_before_ret_none) |
14230 | { | |
14231 | if (lfence_before_indirect_branch != lfence_branch_none) | |
14232 | as_warn (_("constant directive skips -mlfence-before-ret " | |
14233 | "and -mlfence-before-indirect-branch")); | |
14234 | else | |
14235 | as_warn (_("constant directive skips -mlfence-before-ret")); | |
14236 | } | |
14237 | else if (lfence_before_indirect_branch != lfence_branch_none) | |
14238 | as_warn (_("constant directive skips -mlfence-before-indirect-branch")); | |
e379e5f3 L |
14239 | } |
14240 | } | |
14241 | ||
3abbafc2 | 14242 | int |
e3bb37b5 | 14243 | i386_validate_fix (fixS *fixp) |
252b5132 | 14244 | { |
e52a16f2 JB |
14245 | if (fixp->fx_addsy && S_GET_SEGMENT(fixp->fx_addsy) == reg_section) |
14246 | { | |
14247 | reloc_howto_type *howto; | |
14248 | ||
14249 | howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
14250 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14251 | _("invalid %s relocation against register"), | |
14252 | howto ? howto->name : "<unknown>"); | |
14253 | return 0; | |
14254 | } | |
14255 | ||
3abbafc2 JB |
14256 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
14257 | if (fixp->fx_r_type == BFD_RELOC_SIZE32 | |
14258 | || fixp->fx_r_type == BFD_RELOC_SIZE64) | |
14259 | return IS_ELF && fixp->fx_addsy | |
14260 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
14261 | || S_IS_EXTERNAL (fixp->fx_addsy)); | |
14262 | #endif | |
14263 | ||
02a86693 | 14264 | if (fixp->fx_subsy) |
252b5132 | 14265 | { |
02a86693 | 14266 | if (fixp->fx_subsy == GOT_symbol) |
23df1078 | 14267 | { |
02a86693 L |
14268 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
14269 | { | |
14270 | if (!object_64bit) | |
14271 | abort (); | |
14272 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
14273 | if (fixp->fx_tcbit2) | |
56ceb5b5 L |
14274 | fixp->fx_r_type = (fixp->fx_tcbit |
14275 | ? BFD_RELOC_X86_64_REX_GOTPCRELX | |
14276 | : BFD_RELOC_X86_64_GOTPCRELX); | |
02a86693 L |
14277 | else |
14278 | #endif | |
14279 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
14280 | } | |
d6ab8113 | 14281 | else |
02a86693 L |
14282 | { |
14283 | if (!object_64bit) | |
14284 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; | |
14285 | else | |
14286 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
14287 | } | |
14288 | fixp->fx_subsy = 0; | |
23df1078 | 14289 | } |
252b5132 | 14290 | } |
02a86693 | 14291 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
2585b7a5 | 14292 | else |
02a86693 | 14293 | { |
2585b7a5 L |
14294 | /* NB: Commit 292676c1 resolved PLT32 reloc aganst local symbol |
14295 | to section. Since PLT32 relocation must be against symbols, | |
14296 | turn such PLT32 relocation into PC32 relocation. */ | |
14297 | if (fixp->fx_addsy | |
14298 | && (fixp->fx_r_type == BFD_RELOC_386_PLT32 | |
14299 | || fixp->fx_r_type == BFD_RELOC_X86_64_PLT32) | |
14300 | && symbol_section_p (fixp->fx_addsy)) | |
14301 | fixp->fx_r_type = BFD_RELOC_32_PCREL; | |
14302 | if (!object_64bit) | |
14303 | { | |
14304 | if (fixp->fx_r_type == BFD_RELOC_386_GOT32 | |
14305 | && fixp->fx_tcbit2) | |
14306 | fixp->fx_r_type = BFD_RELOC_386_GOT32X; | |
14307 | } | |
02a86693 L |
14308 | } |
14309 | #endif | |
3abbafc2 JB |
14310 | |
14311 | return 1; | |
252b5132 RH |
14312 | } |
14313 | ||
252b5132 | 14314 | arelent * |
7016a5d5 | 14315 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
14316 | { |
14317 | arelent *rel; | |
14318 | bfd_reloc_code_real_type code; | |
14319 | ||
14320 | switch (fixp->fx_r_type) | |
14321 | { | |
8ce3d284 | 14322 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
3abbafc2 JB |
14323 | symbolS *sym; |
14324 | ||
8fd4256d L |
14325 | case BFD_RELOC_SIZE32: |
14326 | case BFD_RELOC_SIZE64: | |
3abbafc2 JB |
14327 | if (fixp->fx_addsy |
14328 | && !bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_addsy)) | |
14329 | && (!fixp->fx_subsy | |
14330 | || bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_subsy)))) | |
14331 | sym = fixp->fx_addsy; | |
14332 | else if (fixp->fx_subsy | |
14333 | && !bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_subsy)) | |
14334 | && (!fixp->fx_addsy | |
14335 | || bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_addsy)))) | |
14336 | sym = fixp->fx_subsy; | |
14337 | else | |
14338 | sym = NULL; | |
14339 | if (IS_ELF && sym && S_IS_DEFINED (sym) && !S_IS_EXTERNAL (sym)) | |
8fd4256d L |
14340 | { |
14341 | /* Resolve size relocation against local symbol to size of | |
14342 | the symbol plus addend. */ | |
3abbafc2 | 14343 | valueT value = S_GET_SIZE (sym); |
44f87162 | 14344 | |
3abbafc2 JB |
14345 | if (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) |
14346 | value = bfd_section_size (S_GET_SEGMENT (sym)); | |
14347 | if (sym == fixp->fx_subsy) | |
14348 | { | |
14349 | value = -value; | |
14350 | if (fixp->fx_addsy) | |
14351 | value += S_GET_VALUE (fixp->fx_addsy); | |
14352 | } | |
14353 | else if (fixp->fx_subsy) | |
14354 | value -= S_GET_VALUE (fixp->fx_subsy); | |
44f87162 | 14355 | value += fixp->fx_offset; |
8fd4256d | 14356 | if (fixp->fx_r_type == BFD_RELOC_SIZE32 |
d965814f | 14357 | && object_64bit |
8fd4256d L |
14358 | && !fits_in_unsigned_long (value)) |
14359 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14360 | _("symbol size computation overflow")); | |
14361 | fixp->fx_addsy = NULL; | |
14362 | fixp->fx_subsy = NULL; | |
14363 | md_apply_fix (fixp, (valueT *) &value, NULL); | |
14364 | return NULL; | |
14365 | } | |
3abbafc2 JB |
14366 | if (!fixp->fx_addsy || fixp->fx_subsy) |
14367 | { | |
14368 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14369 | "unsupported expression involving @size"); | |
14370 | return NULL; | |
14371 | } | |
8ce3d284 | 14372 | #endif |
1a0670f3 | 14373 | /* Fall through. */ |
8fd4256d | 14374 | |
3e73aa7c JH |
14375 | case BFD_RELOC_X86_64_PLT32: |
14376 | case BFD_RELOC_X86_64_GOT32: | |
14377 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
14378 | case BFD_RELOC_X86_64_GOTPCRELX: |
14379 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
252b5132 RH |
14380 | case BFD_RELOC_386_PLT32: |
14381 | case BFD_RELOC_386_GOT32: | |
02a86693 | 14382 | case BFD_RELOC_386_GOT32X: |
252b5132 RH |
14383 | case BFD_RELOC_386_GOTOFF: |
14384 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
14385 | case BFD_RELOC_386_TLS_GD: |
14386 | case BFD_RELOC_386_TLS_LDM: | |
14387 | case BFD_RELOC_386_TLS_LDO_32: | |
14388 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
14389 | case BFD_RELOC_386_TLS_IE: |
14390 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
14391 | case BFD_RELOC_386_TLS_LE_32: |
14392 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
14393 | case BFD_RELOC_386_TLS_GOTDESC: |
14394 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
14395 | case BFD_RELOC_X86_64_TLSGD: |
14396 | case BFD_RELOC_X86_64_TLSLD: | |
14397 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 14398 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
14399 | case BFD_RELOC_X86_64_GOTTPOFF: |
14400 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
14401 | case BFD_RELOC_X86_64_TPOFF64: |
14402 | case BFD_RELOC_X86_64_GOTOFF64: | |
14403 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
14404 | case BFD_RELOC_X86_64_GOT64: |
14405 | case BFD_RELOC_X86_64_GOTPCREL64: | |
14406 | case BFD_RELOC_X86_64_GOTPC64: | |
14407 | case BFD_RELOC_X86_64_GOTPLT64: | |
14408 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
14409 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
14410 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
14411 | case BFD_RELOC_RVA: |
14412 | case BFD_RELOC_VTABLE_ENTRY: | |
14413 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
14414 | #ifdef TE_PE |
14415 | case BFD_RELOC_32_SECREL: | |
145667f8 | 14416 | case BFD_RELOC_16_SECIDX: |
6482c264 | 14417 | #endif |
252b5132 RH |
14418 | code = fixp->fx_r_type; |
14419 | break; | |
dbbaec26 L |
14420 | case BFD_RELOC_X86_64_32S: |
14421 | if (!fixp->fx_pcrel) | |
14422 | { | |
14423 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
14424 | code = fixp->fx_r_type; | |
14425 | break; | |
14426 | } | |
1a0670f3 | 14427 | /* Fall through. */ |
252b5132 | 14428 | default: |
93382f6d | 14429 | if (fixp->fx_pcrel) |
252b5132 | 14430 | { |
93382f6d AM |
14431 | switch (fixp->fx_size) |
14432 | { | |
14433 | default: | |
b091f402 AM |
14434 | as_bad_where (fixp->fx_file, fixp->fx_line, |
14435 | _("can not do %d byte pc-relative relocation"), | |
14436 | fixp->fx_size); | |
93382f6d AM |
14437 | code = BFD_RELOC_32_PCREL; |
14438 | break; | |
14439 | case 1: code = BFD_RELOC_8_PCREL; break; | |
14440 | case 2: code = BFD_RELOC_16_PCREL; break; | |
d258b828 | 14441 | case 4: code = BFD_RELOC_32_PCREL; break; |
d6ab8113 JB |
14442 | #ifdef BFD64 |
14443 | case 8: code = BFD_RELOC_64_PCREL; break; | |
14444 | #endif | |
93382f6d AM |
14445 | } |
14446 | } | |
14447 | else | |
14448 | { | |
14449 | switch (fixp->fx_size) | |
14450 | { | |
14451 | default: | |
b091f402 AM |
14452 | as_bad_where (fixp->fx_file, fixp->fx_line, |
14453 | _("can not do %d byte relocation"), | |
14454 | fixp->fx_size); | |
93382f6d AM |
14455 | code = BFD_RELOC_32; |
14456 | break; | |
14457 | case 1: code = BFD_RELOC_8; break; | |
14458 | case 2: code = BFD_RELOC_16; break; | |
14459 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 14460 | #ifdef BFD64 |
3e73aa7c | 14461 | case 8: code = BFD_RELOC_64; break; |
937149dd | 14462 | #endif |
93382f6d | 14463 | } |
252b5132 RH |
14464 | } |
14465 | break; | |
14466 | } | |
252b5132 | 14467 | |
d182319b JB |
14468 | if ((code == BFD_RELOC_32 |
14469 | || code == BFD_RELOC_32_PCREL | |
14470 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
14471 | && GOT_symbol |
14472 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 14473 | { |
4fa24527 | 14474 | if (!object_64bit) |
d6ab8113 JB |
14475 | code = BFD_RELOC_386_GOTPC; |
14476 | else | |
14477 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 14478 | } |
7b81dfbb AJ |
14479 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
14480 | && GOT_symbol | |
14481 | && fixp->fx_addsy == GOT_symbol) | |
14482 | { | |
14483 | code = BFD_RELOC_X86_64_GOTPC64; | |
14484 | } | |
252b5132 | 14485 | |
add39d23 TS |
14486 | rel = XNEW (arelent); |
14487 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
49309057 | 14488 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
252b5132 RH |
14489 | |
14490 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 14491 | |
3e73aa7c JH |
14492 | if (!use_rela_relocations) |
14493 | { | |
14494 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
14495 | vtable entry to be used in the relocation's section offset. */ | |
14496 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
14497 | rel->address = fixp->fx_offset; | |
fbeb56a4 DK |
14498 | #if defined (OBJ_COFF) && defined (TE_PE) |
14499 | else if (fixp->fx_addsy && S_IS_WEAK (fixp->fx_addsy)) | |
14500 | rel->addend = fixp->fx_addnumber - (S_GET_VALUE (fixp->fx_addsy) * 2); | |
14501 | else | |
14502 | #endif | |
c6682705 | 14503 | rel->addend = 0; |
3e73aa7c JH |
14504 | } |
14505 | /* Use the rela in 64bit mode. */ | |
252b5132 | 14506 | else |
3e73aa7c | 14507 | { |
862be3fb L |
14508 | if (disallow_64bit_reloc) |
14509 | switch (code) | |
14510 | { | |
862be3fb L |
14511 | case BFD_RELOC_X86_64_DTPOFF64: |
14512 | case BFD_RELOC_X86_64_TPOFF64: | |
14513 | case BFD_RELOC_64_PCREL: | |
14514 | case BFD_RELOC_X86_64_GOTOFF64: | |
14515 | case BFD_RELOC_X86_64_GOT64: | |
14516 | case BFD_RELOC_X86_64_GOTPCREL64: | |
14517 | case BFD_RELOC_X86_64_GOTPC64: | |
14518 | case BFD_RELOC_X86_64_GOTPLT64: | |
14519 | case BFD_RELOC_X86_64_PLTOFF64: | |
14520 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14521 | _("cannot represent relocation type %s in x32 mode"), | |
14522 | bfd_get_reloc_code_name (code)); | |
14523 | break; | |
14524 | default: | |
14525 | break; | |
14526 | } | |
14527 | ||
062cd5e7 AS |
14528 | if (!fixp->fx_pcrel) |
14529 | rel->addend = fixp->fx_offset; | |
14530 | else | |
14531 | switch (code) | |
14532 | { | |
14533 | case BFD_RELOC_X86_64_PLT32: | |
14534 | case BFD_RELOC_X86_64_GOT32: | |
14535 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
14536 | case BFD_RELOC_X86_64_GOTPCRELX: |
14537 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
bffbf940 JJ |
14538 | case BFD_RELOC_X86_64_TLSGD: |
14539 | case BFD_RELOC_X86_64_TLSLD: | |
14540 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
14541 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
14542 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
14543 | rel->addend = fixp->fx_offset - fixp->fx_size; |
14544 | break; | |
14545 | default: | |
14546 | rel->addend = (section->vma | |
14547 | - fixp->fx_size | |
14548 | + fixp->fx_addnumber | |
14549 | + md_pcrel_from (fixp)); | |
14550 | break; | |
14551 | } | |
3e73aa7c JH |
14552 | } |
14553 | ||
252b5132 RH |
14554 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
14555 | if (rel->howto == NULL) | |
14556 | { | |
14557 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 14558 | _("cannot represent relocation type %s"), |
252b5132 RH |
14559 | bfd_get_reloc_code_name (code)); |
14560 | /* Set howto to a garbage value so that we can keep going. */ | |
14561 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 14562 | gas_assert (rel->howto != NULL); |
252b5132 RH |
14563 | } |
14564 | ||
14565 | return rel; | |
14566 | } | |
14567 | ||
ee86248c | 14568 | #include "tc-i386-intel.c" |
54cfded0 | 14569 | |
a60de03c JB |
14570 | void |
14571 | tc_x86_parse_to_dw2regnum (expressionS *exp) | |
54cfded0 | 14572 | { |
a60de03c JB |
14573 | int saved_naked_reg; |
14574 | char saved_register_dot; | |
54cfded0 | 14575 | |
a60de03c JB |
14576 | saved_naked_reg = allow_naked_reg; |
14577 | allow_naked_reg = 1; | |
14578 | saved_register_dot = register_chars['.']; | |
14579 | register_chars['.'] = '.'; | |
14580 | allow_pseudo_reg = 1; | |
14581 | expression_and_evaluate (exp); | |
14582 | allow_pseudo_reg = 0; | |
14583 | register_chars['.'] = saved_register_dot; | |
14584 | allow_naked_reg = saved_naked_reg; | |
14585 | ||
e96d56a1 | 14586 | if (exp->X_op == O_register && exp->X_add_number >= 0) |
54cfded0 | 14587 | { |
a60de03c JB |
14588 | if ((addressT) exp->X_add_number < i386_regtab_size) |
14589 | { | |
14590 | exp->X_op = O_constant; | |
14591 | exp->X_add_number = i386_regtab[exp->X_add_number] | |
14592 | .dw2_regnum[flag_code >> 1]; | |
14593 | } | |
14594 | else | |
14595 | exp->X_op = O_illegal; | |
54cfded0 | 14596 | } |
54cfded0 AM |
14597 | } |
14598 | ||
14599 | void | |
14600 | tc_x86_frame_initial_instructions (void) | |
14601 | { | |
a60de03c JB |
14602 | static unsigned int sp_regno[2]; |
14603 | ||
14604 | if (!sp_regno[flag_code >> 1]) | |
14605 | { | |
14606 | char *saved_input = input_line_pointer; | |
14607 | char sp[][4] = {"esp", "rsp"}; | |
14608 | expressionS exp; | |
a4447b93 | 14609 | |
a60de03c JB |
14610 | input_line_pointer = sp[flag_code >> 1]; |
14611 | tc_x86_parse_to_dw2regnum (&exp); | |
9c2799c2 | 14612 | gas_assert (exp.X_op == O_constant); |
a60de03c JB |
14613 | sp_regno[flag_code >> 1] = exp.X_add_number; |
14614 | input_line_pointer = saved_input; | |
14615 | } | |
a4447b93 | 14616 | |
61ff971f L |
14617 | cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment); |
14618 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); | |
54cfded0 | 14619 | } |
d2b2c203 | 14620 | |
d7921315 L |
14621 | int |
14622 | x86_dwarf2_addr_size (void) | |
14623 | { | |
14624 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) | |
14625 | if (x86_elf_abi == X86_64_X32_ABI) | |
14626 | return 4; | |
14627 | #endif | |
14628 | return bfd_arch_bits_per_address (stdoutput) / 8; | |
14629 | } | |
14630 | ||
d2b2c203 DJ |
14631 | int |
14632 | i386_elf_section_type (const char *str, size_t len) | |
14633 | { | |
14634 | if (flag_code == CODE_64BIT | |
14635 | && len == sizeof ("unwind") - 1 | |
d34049e8 | 14636 | && startswith (str, "unwind")) |
d2b2c203 DJ |
14637 | return SHT_X86_64_UNWIND; |
14638 | ||
14639 | return -1; | |
14640 | } | |
bb41ade5 | 14641 | |
ad5fec3b EB |
14642 | #ifdef TE_SOLARIS |
14643 | void | |
14644 | i386_solaris_fix_up_eh_frame (segT sec) | |
14645 | { | |
14646 | if (flag_code == CODE_64BIT) | |
14647 | elf_section_type (sec) = SHT_X86_64_UNWIND; | |
14648 | } | |
14649 | #endif | |
14650 | ||
bb41ade5 AM |
14651 | #ifdef TE_PE |
14652 | void | |
14653 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
14654 | { | |
91d6fa6a | 14655 | expressionS exp; |
bb41ade5 | 14656 | |
91d6fa6a NC |
14657 | exp.X_op = O_secrel; |
14658 | exp.X_add_symbol = symbol; | |
14659 | exp.X_add_number = 0; | |
14660 | emit_expr (&exp, size); | |
bb41ade5 AM |
14661 | } |
14662 | #endif | |
3b22753a L |
14663 | |
14664 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
14665 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
14666 | ||
01e1a5bc | 14667 | bfd_vma |
6d4af3c2 | 14668 | x86_64_section_letter (int letter, const char **ptr_msg) |
3b22753a L |
14669 | { |
14670 | if (flag_code == CODE_64BIT) | |
14671 | { | |
14672 | if (letter == 'l') | |
14673 | return SHF_X86_64_LARGE; | |
14674 | ||
8f3bae45 | 14675 | *ptr_msg = _("bad .section directive: want a,l,w,x,M,S,G,T in string"); |
64e74474 | 14676 | } |
3b22753a | 14677 | else |
8f3bae45 | 14678 | *ptr_msg = _("bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
14679 | return -1; |
14680 | } | |
14681 | ||
01e1a5bc | 14682 | bfd_vma |
3b22753a L |
14683 | x86_64_section_word (char *str, size_t len) |
14684 | { | |
08dedd66 | 14685 | if (len == 5 && flag_code == CODE_64BIT && startswith (str, "large")) |
3b22753a L |
14686 | return SHF_X86_64_LARGE; |
14687 | ||
14688 | return -1; | |
14689 | } | |
14690 | ||
14691 | static void | |
14692 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
14693 | { | |
14694 | if (flag_code != CODE_64BIT) | |
14695 | { | |
14696 | s_comm_internal (0, elf_common_parse); | |
14697 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
14698 | } | |
14699 | else | |
14700 | { | |
14701 | static segT lbss_section; | |
14702 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
14703 | asection *saved_bss_section = bss_section; | |
14704 | ||
14705 | if (lbss_section == NULL) | |
14706 | { | |
14707 | flagword applicable; | |
14708 | segT seg = now_seg; | |
14709 | subsegT subseg = now_subseg; | |
14710 | ||
14711 | /* The .lbss section is for local .largecomm symbols. */ | |
14712 | lbss_section = subseg_new (".lbss", 0); | |
14713 | applicable = bfd_applicable_section_flags (stdoutput); | |
fd361982 | 14714 | bfd_set_section_flags (lbss_section, applicable & SEC_ALLOC); |
3b22753a L |
14715 | seg_info (lbss_section)->bss = 1; |
14716 | ||
14717 | subseg_set (seg, subseg); | |
14718 | } | |
14719 | ||
14720 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
14721 | bss_section = lbss_section; | |
14722 | ||
14723 | s_comm_internal (0, elf_common_parse); | |
14724 | ||
14725 | elf_com_section_ptr = saved_com_section_ptr; | |
14726 | bss_section = saved_bss_section; | |
14727 | } | |
14728 | } | |
14729 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |