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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" |
d2b2c203 | 33 | #include "elf/x86-64.h" |
40fb9820 | 34 | #include "opcodes/i386-init.h" |
41fd2579 | 35 | #include <limits.h> |
41fd2579 | 36 | |
c3332e24 | 37 | #ifndef INFER_ADDR_PREFIX |
eecb386c | 38 | #define INFER_ADDR_PREFIX 1 |
c3332e24 AM |
39 | #endif |
40 | ||
29b0f896 AM |
41 | #ifndef DEFAULT_ARCH |
42 | #define DEFAULT_ARCH "i386" | |
246fcdee | 43 | #endif |
252b5132 | 44 | |
edde18a5 AM |
45 | #ifndef INLINE |
46 | #if __GNUC__ >= 2 | |
47 | #define INLINE __inline__ | |
48 | #else | |
49 | #define INLINE | |
50 | #endif | |
51 | #endif | |
52 | ||
6305a203 L |
53 | /* Prefixes will be emitted in the order defined below. |
54 | WAIT_PREFIX must be the first prefix since FWAIT is really is an | |
55 | instruction, and so must come before any prefixes. | |
56 | The preferred prefix order is SEG_PREFIX, ADDR_PREFIX, DATA_PREFIX, | |
42164a71 | 57 | REP_PREFIX/HLE_PREFIX, LOCK_PREFIX. */ |
6305a203 L |
58 | #define WAIT_PREFIX 0 |
59 | #define SEG_PREFIX 1 | |
60 | #define ADDR_PREFIX 2 | |
61 | #define DATA_PREFIX 3 | |
c32fa91d | 62 | #define REP_PREFIX 4 |
42164a71 | 63 | #define HLE_PREFIX REP_PREFIX |
7e8b059b | 64 | #define BND_PREFIX REP_PREFIX |
c32fa91d | 65 | #define LOCK_PREFIX 5 |
4e9ac44a L |
66 | #define REX_PREFIX 6 /* must come last. */ |
67 | #define MAX_PREFIXES 7 /* max prefixes per opcode */ | |
6305a203 L |
68 | |
69 | /* we define the syntax here (modulo base,index,scale syntax) */ | |
70 | #define REGISTER_PREFIX '%' | |
71 | #define IMMEDIATE_PREFIX '$' | |
72 | #define ABSOLUTE_PREFIX '*' | |
73 | ||
74 | /* these are the instruction mnemonic suffixes in AT&T syntax or | |
75 | memory operand size in Intel syntax. */ | |
76 | #define WORD_MNEM_SUFFIX 'w' | |
77 | #define BYTE_MNEM_SUFFIX 'b' | |
78 | #define SHORT_MNEM_SUFFIX 's' | |
79 | #define LONG_MNEM_SUFFIX 'l' | |
80 | #define QWORD_MNEM_SUFFIX 'q' | |
6305a203 L |
81 | /* Intel Syntax. Use a non-ascii letter since since it never appears |
82 | in instructions. */ | |
83 | #define LONG_DOUBLE_MNEM_SUFFIX '\1' | |
84 | ||
85 | #define END_OF_INSN '\0' | |
86 | ||
79dec6b7 JB |
87 | /* This matches the C -> StaticRounding alias in the opcode table. */ |
88 | #define commutative staticrounding | |
89 | ||
6305a203 L |
90 | /* |
91 | 'templates' is for grouping together 'template' structures for opcodes | |
92 | of the same name. This is only used for storing the insns in the grand | |
93 | ole hash table of insns. | |
94 | The templates themselves start at START and range up to (but not including) | |
95 | END. | |
96 | */ | |
97 | typedef struct | |
98 | { | |
d3ce72d0 NC |
99 | const insn_template *start; |
100 | const insn_template *end; | |
6305a203 L |
101 | } |
102 | templates; | |
103 | ||
104 | /* 386 operand encoding bytes: see 386 book for details of this. */ | |
105 | typedef struct | |
106 | { | |
107 | unsigned int regmem; /* codes register or memory operand */ | |
108 | unsigned int reg; /* codes register operand (or extended opcode) */ | |
109 | unsigned int mode; /* how to interpret regmem & reg */ | |
110 | } | |
111 | modrm_byte; | |
112 | ||
113 | /* x86-64 extension prefix. */ | |
114 | typedef int rex_byte; | |
115 | ||
6305a203 L |
116 | /* 386 opcode byte to code indirect addressing. */ |
117 | typedef struct | |
118 | { | |
119 | unsigned base; | |
120 | unsigned index; | |
121 | unsigned scale; | |
122 | } | |
123 | sib_byte; | |
124 | ||
6305a203 L |
125 | /* x86 arch names, types and features */ |
126 | typedef struct | |
127 | { | |
128 | const char *name; /* arch name */ | |
6ceeed25 JB |
129 | unsigned int len:8; /* arch string length */ |
130 | bool skip:1; /* show_arch should skip this. */ | |
6305a203 | 131 | enum processor_type type; /* arch type */ |
ae89daec JB |
132 | i386_cpu_flags enable; /* cpu feature enable flags */ |
133 | i386_cpu_flags disable; /* cpu feature disable flags */ | |
6305a203 L |
134 | } |
135 | arch_entry; | |
136 | ||
78f12dd3 | 137 | static void update_code_flag (int, int); |
e3bb37b5 L |
138 | static void set_code_flag (int); |
139 | static void set_16bit_gcc_code_flag (int); | |
140 | static void set_intel_syntax (int); | |
1efbbeb4 | 141 | static void set_intel_mnemonic (int); |
db51cc60 | 142 | static void set_allow_index_reg (int); |
7bab8ab5 | 143 | static void set_check (int); |
e3bb37b5 | 144 | static void set_cpu_arch (int); |
6482c264 | 145 | #ifdef TE_PE |
e3bb37b5 | 146 | static void pe_directive_secrel (int); |
145667f8 | 147 | static void pe_directive_secidx (int); |
6482c264 | 148 | #endif |
e3bb37b5 L |
149 | static void signed_cons (int); |
150 | static char *output_invalid (int c); | |
ee86248c JB |
151 | static int i386_finalize_immediate (segT, expressionS *, i386_operand_type, |
152 | const char *); | |
153 | static int i386_finalize_displacement (segT, expressionS *, i386_operand_type, | |
154 | const char *); | |
a7619375 | 155 | static int i386_att_operand (char *); |
e3bb37b5 | 156 | static int i386_intel_operand (char *, int); |
ee86248c JB |
157 | static int i386_intel_simplify (expressionS *); |
158 | static int i386_intel_parse_name (const char *, expressionS *); | |
e3bb37b5 L |
159 | static const reg_entry *parse_register (char *, char **); |
160 | static char *parse_insn (char *, char *); | |
161 | static char *parse_operands (char *, const char *); | |
162 | static void swap_operands (void); | |
783c187b | 163 | static void swap_2_operands (unsigned int, unsigned int); |
48bcea9f | 164 | static enum flag_code i386_addressing_mode (void); |
e3bb37b5 L |
165 | static void optimize_imm (void); |
166 | static void optimize_disp (void); | |
83b16ac6 | 167 | static const insn_template *match_template (char); |
e3bb37b5 L |
168 | static int check_string (void); |
169 | static int process_suffix (void); | |
170 | static int check_byte_reg (void); | |
171 | static int check_long_reg (void); | |
172 | static int check_qword_reg (void); | |
173 | static int check_word_reg (void); | |
174 | static int finalize_imm (void); | |
175 | static int process_operands (void); | |
5e042380 | 176 | static const reg_entry *build_modrm_byte (void); |
e3bb37b5 L |
177 | static void output_insn (void); |
178 | static void output_imm (fragS *, offsetT); | |
179 | static void output_disp (fragS *, offsetT); | |
29b0f896 | 180 | #ifndef I386COFF |
e3bb37b5 | 181 | static void s_bss (int); |
252b5132 | 182 | #endif |
17d4e2a2 L |
183 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
184 | static void handle_large_common (int small ATTRIBUTE_UNUSED); | |
b4a3a7b4 L |
185 | |
186 | /* GNU_PROPERTY_X86_ISA_1_USED. */ | |
187 | static unsigned int x86_isa_1_used; | |
188 | /* GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
189 | static unsigned int x86_feature_2_used; | |
190 | /* Generate x86 used ISA and feature properties. */ | |
191 | static unsigned int x86_used_note = DEFAULT_X86_USED_NOTE; | |
17d4e2a2 | 192 | #endif |
252b5132 | 193 | |
a847613f | 194 | static const char *default_arch = DEFAULT_ARCH; |
3e73aa7c | 195 | |
8a6fb3f9 JB |
196 | /* parse_register() returns this when a register alias cannot be used. */ |
197 | static const reg_entry bad_reg = { "<bad>", OPERAND_TYPE_NONE, 0, 0, | |
198 | { Dw2Inval, Dw2Inval } }; | |
199 | ||
34684862 | 200 | static const reg_entry *reg_eax; |
5e042380 JB |
201 | static const reg_entry *reg_ds; |
202 | static const reg_entry *reg_es; | |
203 | static const reg_entry *reg_ss; | |
6288d05f | 204 | static const reg_entry *reg_st0; |
6225c532 JB |
205 | static const reg_entry *reg_k0; |
206 | ||
c0f3af97 L |
207 | /* VEX prefix. */ |
208 | typedef struct | |
209 | { | |
43234a1e L |
210 | /* VEX prefix is either 2 byte or 3 byte. EVEX is 4 byte. */ |
211 | unsigned char bytes[4]; | |
c0f3af97 L |
212 | unsigned int length; |
213 | /* Destination or source register specifier. */ | |
214 | const reg_entry *register_specifier; | |
215 | } vex_prefix; | |
216 | ||
252b5132 | 217 | /* 'md_assemble ()' gathers together information and puts it into a |
47926f60 | 218 | i386_insn. */ |
252b5132 | 219 | |
520dc8e8 AM |
220 | union i386_op |
221 | { | |
222 | expressionS *disps; | |
223 | expressionS *imms; | |
224 | const reg_entry *regs; | |
225 | }; | |
226 | ||
a65babc9 L |
227 | enum i386_error |
228 | { | |
b4d65f2d | 229 | no_error, /* Must be first. */ |
86e026a4 | 230 | operand_size_mismatch, |
a65babc9 L |
231 | operand_type_mismatch, |
232 | register_type_mismatch, | |
233 | number_of_operands_mismatch, | |
234 | invalid_instruction_suffix, | |
235 | bad_imm4, | |
a65babc9 L |
236 | unsupported_with_intel_mnemonic, |
237 | unsupported_syntax, | |
6c30d220 | 238 | unsupported, |
260cd341 | 239 | invalid_sib_address, |
6c30d220 | 240 | invalid_vsib_address, |
7bab8ab5 | 241 | invalid_vector_register_set, |
260cd341 | 242 | invalid_tmm_register_set, |
0cc78721 | 243 | invalid_dest_and_src_register_set, |
43234a1e L |
244 | unsupported_vector_index_register, |
245 | unsupported_broadcast, | |
43234a1e L |
246 | broadcast_needed, |
247 | unsupported_masking, | |
248 | mask_not_on_destination, | |
249 | no_default_mask, | |
250 | unsupported_rc_sae, | |
43234a1e | 251 | invalid_register_operand, |
a65babc9 L |
252 | }; |
253 | ||
252b5132 RH |
254 | struct _i386_insn |
255 | { | |
47926f60 | 256 | /* TM holds the template for the insn were currently assembling. */ |
d3ce72d0 | 257 | insn_template tm; |
252b5132 | 258 | |
7d5e4556 L |
259 | /* SUFFIX holds the instruction size suffix for byte, word, dword |
260 | or qword, if given. */ | |
252b5132 RH |
261 | char suffix; |
262 | ||
9a182d04 JB |
263 | /* OPCODE_LENGTH holds the number of base opcode bytes. */ |
264 | unsigned char opcode_length; | |
265 | ||
47926f60 | 266 | /* OPERANDS gives the number of given operands. */ |
252b5132 RH |
267 | unsigned int operands; |
268 | ||
269 | /* REG_OPERANDS, DISP_OPERANDS, MEM_OPERANDS, IMM_OPERANDS give the number | |
270 | of given register, displacement, memory operands and immediate | |
47926f60 | 271 | operands. */ |
252b5132 RH |
272 | unsigned int reg_operands, disp_operands, mem_operands, imm_operands; |
273 | ||
274 | /* TYPES [i] is the type (see above #defines) which tells us how to | |
520dc8e8 | 275 | use OP[i] for the corresponding operand. */ |
40fb9820 | 276 | i386_operand_type types[MAX_OPERANDS]; |
252b5132 | 277 | |
520dc8e8 AM |
278 | /* Displacement expression, immediate expression, or register for each |
279 | operand. */ | |
280 | union i386_op op[MAX_OPERANDS]; | |
252b5132 | 281 | |
3e73aa7c JH |
282 | /* Flags for operands. */ |
283 | unsigned int flags[MAX_OPERANDS]; | |
284 | #define Operand_PCrel 1 | |
c48dadc9 | 285 | #define Operand_Mem 2 |
3e73aa7c | 286 | |
252b5132 | 287 | /* Relocation type for operand */ |
f86103b7 | 288 | enum bfd_reloc_code_real reloc[MAX_OPERANDS]; |
252b5132 | 289 | |
252b5132 RH |
290 | /* BASE_REG, INDEX_REG, and LOG2_SCALE_FACTOR are used to encode |
291 | the base index byte below. */ | |
292 | const reg_entry *base_reg; | |
293 | const reg_entry *index_reg; | |
294 | unsigned int log2_scale_factor; | |
295 | ||
296 | /* SEG gives the seg_entries of this insn. They are zero unless | |
47926f60 | 297 | explicit segment overrides are given. */ |
5e042380 | 298 | const reg_entry *seg[2]; |
252b5132 | 299 | |
8325cc63 JB |
300 | /* Copied first memory operand string, for re-checking. */ |
301 | char *memop1_string; | |
302 | ||
252b5132 RH |
303 | /* PREFIX holds all the given prefix opcodes (usually null). |
304 | PREFIXES is the number of prefix opcodes. */ | |
305 | unsigned int prefixes; | |
306 | unsigned char prefix[MAX_PREFIXES]; | |
307 | ||
50128d0c | 308 | /* Register is in low 3 bits of opcode. */ |
5b7c81bd | 309 | bool short_form; |
50128d0c | 310 | |
6f2f06be | 311 | /* The operand to a branch insn indicates an absolute branch. */ |
5b7c81bd | 312 | bool jumpabsolute; |
6f2f06be | 313 | |
921eafea L |
314 | /* Extended states. */ |
315 | enum | |
316 | { | |
317 | /* Use MMX state. */ | |
318 | xstate_mmx = 1 << 0, | |
319 | /* Use XMM state. */ | |
320 | xstate_xmm = 1 << 1, | |
321 | /* Use YMM state. */ | |
322 | xstate_ymm = 1 << 2 | xstate_xmm, | |
323 | /* Use ZMM state. */ | |
324 | xstate_zmm = 1 << 3 | xstate_ymm, | |
325 | /* Use TMM state. */ | |
32930e4e L |
326 | xstate_tmm = 1 << 4, |
327 | /* Use MASK state. */ | |
328 | xstate_mask = 1 << 5 | |
921eafea | 329 | } xstate; |
260cd341 | 330 | |
e379e5f3 | 331 | /* Has GOTPC or TLS relocation. */ |
5b7c81bd | 332 | bool has_gotpc_tls_reloc; |
e379e5f3 | 333 | |
252b5132 | 334 | /* RM and SIB are the modrm byte and the sib byte where the |
c1e679ec | 335 | addressing modes of this insn are encoded. */ |
252b5132 | 336 | modrm_byte rm; |
3e73aa7c | 337 | rex_byte rex; |
43234a1e | 338 | rex_byte vrex; |
252b5132 | 339 | sib_byte sib; |
c0f3af97 | 340 | vex_prefix vex; |
b6169b20 | 341 | |
6225c532 JB |
342 | /* Masking attributes. |
343 | ||
344 | The struct describes masking, applied to OPERAND in the instruction. | |
345 | REG is a pointer to the corresponding mask register. ZEROING tells | |
346 | whether merging or zeroing mask is used. */ | |
347 | struct Mask_Operation | |
348 | { | |
349 | const reg_entry *reg; | |
350 | unsigned int zeroing; | |
351 | /* The operand where this operation is associated. */ | |
352 | unsigned int operand; | |
353 | } mask; | |
43234a1e L |
354 | |
355 | /* Rounding control and SAE attributes. */ | |
ca5312a2 JB |
356 | struct RC_Operation |
357 | { | |
358 | enum rc_type | |
359 | { | |
360 | rc_none = -1, | |
361 | rne, | |
362 | rd, | |
363 | ru, | |
364 | rz, | |
365 | saeonly | |
366 | } type; | |
7063667e JB |
367 | /* In Intel syntax the operand modifier form is supposed to be used, but |
368 | we continue to accept the immediate forms as well. */ | |
369 | bool modifier; | |
ca5312a2 | 370 | } rounding; |
43234a1e | 371 | |
5273a3cd JB |
372 | /* Broadcasting attributes. |
373 | ||
374 | The struct describes broadcasting, applied to OPERAND. TYPE is | |
375 | expresses the broadcast factor. */ | |
376 | struct Broadcast_Operation | |
377 | { | |
0cc78721 | 378 | /* Type of broadcast: {1to2}, {1to4}, {1to8}, {1to16} or {1to32}. */ |
5273a3cd JB |
379 | unsigned int type; |
380 | ||
381 | /* Index of broadcasted operand. */ | |
382 | unsigned int operand; | |
383 | ||
384 | /* Number of bytes to broadcast. */ | |
385 | unsigned int bytes; | |
386 | } broadcast; | |
43234a1e L |
387 | |
388 | /* Compressed disp8*N attribute. */ | |
389 | unsigned int memshift; | |
390 | ||
86fa6981 L |
391 | /* Prefer load or store in encoding. */ |
392 | enum | |
393 | { | |
394 | dir_encoding_default = 0, | |
395 | dir_encoding_load, | |
64c49ab3 JB |
396 | dir_encoding_store, |
397 | dir_encoding_swap | |
86fa6981 | 398 | } dir_encoding; |
891edac4 | 399 | |
41eb8e88 | 400 | /* Prefer 8bit, 16bit, 32bit displacement in encoding. */ |
a501d77e L |
401 | enum |
402 | { | |
403 | disp_encoding_default = 0, | |
404 | disp_encoding_8bit, | |
41eb8e88 | 405 | disp_encoding_16bit, |
a501d77e L |
406 | disp_encoding_32bit |
407 | } disp_encoding; | |
f8a5c266 | 408 | |
6b6b6807 | 409 | /* Prefer the REX byte in encoding. */ |
5b7c81bd | 410 | bool rex_encoding; |
6b6b6807 | 411 | |
b6f8c7c4 | 412 | /* Disable instruction size optimization. */ |
5b7c81bd | 413 | bool no_optimize; |
b6f8c7c4 | 414 | |
86fa6981 L |
415 | /* How to encode vector instructions. */ |
416 | enum | |
417 | { | |
418 | vex_encoding_default = 0, | |
42e04b36 | 419 | vex_encoding_vex, |
86fa6981 | 420 | vex_encoding_vex3, |
da4977e0 JB |
421 | vex_encoding_evex, |
422 | vex_encoding_error | |
86fa6981 L |
423 | } vec_encoding; |
424 | ||
d5de92cf L |
425 | /* REP prefix. */ |
426 | const char *rep_prefix; | |
427 | ||
165de32a L |
428 | /* HLE prefix. */ |
429 | const char *hle_prefix; | |
42164a71 | 430 | |
7e8b059b L |
431 | /* Have BND prefix. */ |
432 | const char *bnd_prefix; | |
433 | ||
04ef582a L |
434 | /* Have NOTRACK prefix. */ |
435 | const char *notrack_prefix; | |
436 | ||
891edac4 | 437 | /* Error message. */ |
a65babc9 | 438 | enum i386_error error; |
252b5132 RH |
439 | }; |
440 | ||
441 | typedef struct _i386_insn i386_insn; | |
442 | ||
43234a1e L |
443 | /* Link RC type with corresponding string, that'll be looked for in |
444 | asm. */ | |
445 | struct RC_name | |
446 | { | |
447 | enum rc_type type; | |
448 | const char *name; | |
449 | unsigned int len; | |
450 | }; | |
451 | ||
452 | static const struct RC_name RC_NamesTable[] = | |
453 | { | |
454 | { rne, STRING_COMMA_LEN ("rn-sae") }, | |
455 | { rd, STRING_COMMA_LEN ("rd-sae") }, | |
456 | { ru, STRING_COMMA_LEN ("ru-sae") }, | |
457 | { rz, STRING_COMMA_LEN ("rz-sae") }, | |
458 | { saeonly, STRING_COMMA_LEN ("sae") }, | |
459 | }; | |
460 | ||
252b5132 RH |
461 | /* List of chars besides those in app.c:symbol_chars that can start an |
462 | operand. Used to prevent the scrubber eating vital white-space. */ | |
86fa6981 | 463 | const char extra_symbol_chars[] = "*%-([{}" |
252b5132 | 464 | #ifdef LEX_AT |
32137342 NC |
465 | "@" |
466 | #endif | |
467 | #ifdef LEX_QM | |
468 | "?" | |
252b5132 | 469 | #endif |
32137342 | 470 | ; |
252b5132 | 471 | |
b3983e5f JB |
472 | #if ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ |
473 | && !defined (TE_GNU) \ | |
474 | && !defined (TE_LINUX) \ | |
d85e70a3 | 475 | && !defined (TE_Haiku) \ |
b3983e5f JB |
476 | && !defined (TE_FreeBSD) \ |
477 | && !defined (TE_DragonFly) \ | |
478 | && !defined (TE_NetBSD)) | |
252b5132 | 479 | /* This array holds the chars that always start a comment. If the |
b3b91714 AM |
480 | pre-processor is disabled, these aren't very useful. The option |
481 | --divide will remove '/' from this list. */ | |
482 | const char *i386_comment_chars = "#/"; | |
483 | #define SVR4_COMMENT_CHARS 1 | |
252b5132 | 484 | #define PREFIX_SEPARATOR '\\' |
252b5132 | 485 | |
b3b91714 AM |
486 | #else |
487 | const char *i386_comment_chars = "#"; | |
488 | #define PREFIX_SEPARATOR '/' | |
489 | #endif | |
490 | ||
252b5132 RH |
491 | /* This array holds the chars that only start a comment at the beginning of |
492 | a line. If the line seems to have the form '# 123 filename' | |
ce8a8b2f AM |
493 | .line and .file directives will appear in the pre-processed output. |
494 | Note that input_file.c hand checks for '#' at the beginning of the | |
252b5132 | 495 | first line of the input file. This is because the compiler outputs |
ce8a8b2f AM |
496 | #NO_APP at the beginning of its output. |
497 | Also note that comments started like this one will always work if | |
252b5132 | 498 | '/' isn't otherwise defined. */ |
b3b91714 | 499 | const char line_comment_chars[] = "#/"; |
252b5132 | 500 | |
63a0b638 | 501 | const char line_separator_chars[] = ";"; |
252b5132 | 502 | |
ce8a8b2f AM |
503 | /* Chars that can be used to separate mant from exp in floating point |
504 | nums. */ | |
252b5132 RH |
505 | const char EXP_CHARS[] = "eE"; |
506 | ||
ce8a8b2f AM |
507 | /* Chars that mean this number is a floating point constant |
508 | As in 0f12.456 | |
509 | or 0d1.2345e12. */ | |
de133cf9 | 510 | const char FLT_CHARS[] = "fFdDxXhHbB"; |
252b5132 | 511 | |
ce8a8b2f | 512 | /* Tables for lexical analysis. */ |
252b5132 RH |
513 | static char mnemonic_chars[256]; |
514 | static char register_chars[256]; | |
515 | static char operand_chars[256]; | |
516 | static char identifier_chars[256]; | |
252b5132 | 517 | |
ce8a8b2f | 518 | /* Lexical macros. */ |
252b5132 RH |
519 | #define is_mnemonic_char(x) (mnemonic_chars[(unsigned char) x]) |
520 | #define is_operand_char(x) (operand_chars[(unsigned char) x]) | |
521 | #define is_register_char(x) (register_chars[(unsigned char) x]) | |
522 | #define is_space_char(x) ((x) == ' ') | |
523 | #define is_identifier_char(x) (identifier_chars[(unsigned char) x]) | |
252b5132 | 524 | |
0234cb7c | 525 | /* All non-digit non-letter characters that may occur in an operand. */ |
252b5132 RH |
526 | static char operand_special_chars[] = "%$-+(,)*._~/<>|&^!:[@]"; |
527 | ||
528 | /* md_assemble() always leaves the strings it's passed unaltered. To | |
529 | effect this we maintain a stack of saved characters that we've smashed | |
530 | with '\0's (indicating end of strings for various sub-fields of the | |
47926f60 | 531 | assembler instruction). */ |
252b5132 | 532 | static char save_stack[32]; |
ce8a8b2f | 533 | static char *save_stack_p; |
252b5132 RH |
534 | #define END_STRING_AND_SAVE(s) \ |
535 | do { *save_stack_p++ = *(s); *(s) = '\0'; } while (0) | |
536 | #define RESTORE_END_STRING(s) \ | |
537 | do { *(s) = *--save_stack_p; } while (0) | |
538 | ||
47926f60 | 539 | /* The instruction we're assembling. */ |
252b5132 RH |
540 | static i386_insn i; |
541 | ||
542 | /* Possible templates for current insn. */ | |
543 | static const templates *current_templates; | |
544 | ||
31b2323c L |
545 | /* Per instruction expressionS buffers: max displacements & immediates. */ |
546 | static expressionS disp_expressions[MAX_MEMORY_OPERANDS]; | |
547 | static expressionS im_expressions[MAX_IMMEDIATE_OPERANDS]; | |
252b5132 | 548 | |
47926f60 | 549 | /* Current operand we are working on. */ |
ee86248c | 550 | static int this_operand = -1; |
252b5132 | 551 | |
3e73aa7c JH |
552 | /* We support four different modes. FLAG_CODE variable is used to distinguish |
553 | these. */ | |
554 | ||
555 | enum flag_code { | |
556 | CODE_32BIT, | |
557 | CODE_16BIT, | |
558 | CODE_64BIT }; | |
559 | ||
560 | static enum flag_code flag_code; | |
4fa24527 | 561 | static unsigned int object_64bit; |
862be3fb | 562 | static unsigned int disallow_64bit_reloc; |
3e73aa7c | 563 | static int use_rela_relocations = 0; |
e379e5f3 L |
564 | /* __tls_get_addr/___tls_get_addr symbol for TLS. */ |
565 | static const char *tls_get_addr; | |
3e73aa7c | 566 | |
7af8ed2d NC |
567 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
568 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ | |
569 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) | |
570 | ||
351f65ca L |
571 | /* The ELF ABI to use. */ |
572 | enum x86_elf_abi | |
573 | { | |
574 | I386_ABI, | |
7f56bc95 L |
575 | X86_64_ABI, |
576 | X86_64_X32_ABI | |
351f65ca L |
577 | }; |
578 | ||
579 | static enum x86_elf_abi x86_elf_abi = I386_ABI; | |
7af8ed2d | 580 | #endif |
351f65ca | 581 | |
167ad85b TG |
582 | #if defined (TE_PE) || defined (TE_PEP) |
583 | /* Use big object file format. */ | |
584 | static int use_big_obj = 0; | |
585 | #endif | |
586 | ||
8dcea932 L |
587 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
588 | /* 1 if generating code for a shared library. */ | |
589 | static int shared = 0; | |
590 | #endif | |
591 | ||
47926f60 KH |
592 | /* 1 for intel syntax, |
593 | 0 if att syntax. */ | |
594 | static int intel_syntax = 0; | |
252b5132 | 595 | |
4b5aaf5f L |
596 | static enum x86_64_isa |
597 | { | |
598 | amd64 = 1, /* AMD64 ISA. */ | |
599 | intel64 /* Intel64 ISA. */ | |
600 | } isa64; | |
e89c5eaa | 601 | |
1efbbeb4 L |
602 | /* 1 for intel mnemonic, |
603 | 0 if att mnemonic. */ | |
604 | static int intel_mnemonic = !SYSV386_COMPAT; | |
605 | ||
a60de03c JB |
606 | /* 1 if pseudo registers are permitted. */ |
607 | static int allow_pseudo_reg = 0; | |
608 | ||
47926f60 KH |
609 | /* 1 if register prefix % not required. */ |
610 | static int allow_naked_reg = 0; | |
252b5132 | 611 | |
33eaf5de | 612 | /* 1 if the assembler should add BND prefix for all control-transferring |
7e8b059b L |
613 | instructions supporting it, even if this prefix wasn't specified |
614 | explicitly. */ | |
615 | static int add_bnd_prefix = 0; | |
616 | ||
ba104c83 | 617 | /* 1 if pseudo index register, eiz/riz, is allowed . */ |
db51cc60 L |
618 | static int allow_index_reg = 0; |
619 | ||
d022bddd IT |
620 | /* 1 if the assembler should ignore LOCK prefix, even if it was |
621 | specified explicitly. */ | |
622 | static int omit_lock_prefix = 0; | |
623 | ||
e4e00185 AS |
624 | /* 1 if the assembler should encode lfence, mfence, and sfence as |
625 | "lock addl $0, (%{re}sp)". */ | |
626 | static int avoid_fence = 0; | |
627 | ||
ae531041 L |
628 | /* 1 if lfence should be inserted after every load. */ |
629 | static int lfence_after_load = 0; | |
630 | ||
631 | /* Non-zero if lfence should be inserted before indirect branch. */ | |
632 | static enum lfence_before_indirect_branch_kind | |
633 | { | |
634 | lfence_branch_none = 0, | |
635 | lfence_branch_register, | |
636 | lfence_branch_memory, | |
637 | lfence_branch_all | |
638 | } | |
639 | lfence_before_indirect_branch; | |
640 | ||
641 | /* Non-zero if lfence should be inserted before ret. */ | |
642 | static enum lfence_before_ret_kind | |
643 | { | |
644 | lfence_before_ret_none = 0, | |
645 | lfence_before_ret_not, | |
a09f656b | 646 | lfence_before_ret_or, |
647 | lfence_before_ret_shl | |
ae531041 L |
648 | } |
649 | lfence_before_ret; | |
650 | ||
651 | /* Types of previous instruction is .byte or prefix. */ | |
e379e5f3 L |
652 | static struct |
653 | { | |
654 | segT seg; | |
655 | const char *file; | |
656 | const char *name; | |
657 | unsigned int line; | |
658 | enum last_insn_kind | |
659 | { | |
660 | last_insn_other = 0, | |
661 | last_insn_directive, | |
662 | last_insn_prefix | |
663 | } kind; | |
664 | } last_insn; | |
665 | ||
0cb4071e L |
666 | /* 1 if the assembler should generate relax relocations. */ |
667 | ||
668 | static int generate_relax_relocations | |
669 | = DEFAULT_GENERATE_X86_RELAX_RELOCATIONS; | |
670 | ||
7bab8ab5 | 671 | static enum check_kind |
daf50ae7 | 672 | { |
7bab8ab5 JB |
673 | check_none = 0, |
674 | check_warning, | |
675 | check_error | |
daf50ae7 | 676 | } |
7bab8ab5 | 677 | sse_check, operand_check = check_warning; |
daf50ae7 | 678 | |
e379e5f3 L |
679 | /* Non-zero if branches should be aligned within power of 2 boundary. */ |
680 | static int align_branch_power = 0; | |
681 | ||
682 | /* Types of branches to align. */ | |
683 | enum align_branch_kind | |
684 | { | |
685 | align_branch_none = 0, | |
686 | align_branch_jcc = 1, | |
687 | align_branch_fused = 2, | |
688 | align_branch_jmp = 3, | |
689 | align_branch_call = 4, | |
690 | align_branch_indirect = 5, | |
691 | align_branch_ret = 6 | |
692 | }; | |
693 | ||
694 | /* Type bits of branches to align. */ | |
695 | enum align_branch_bit | |
696 | { | |
697 | align_branch_jcc_bit = 1 << align_branch_jcc, | |
698 | align_branch_fused_bit = 1 << align_branch_fused, | |
699 | align_branch_jmp_bit = 1 << align_branch_jmp, | |
700 | align_branch_call_bit = 1 << align_branch_call, | |
701 | align_branch_indirect_bit = 1 << align_branch_indirect, | |
702 | align_branch_ret_bit = 1 << align_branch_ret | |
703 | }; | |
704 | ||
705 | static unsigned int align_branch = (align_branch_jcc_bit | |
706 | | align_branch_fused_bit | |
707 | | align_branch_jmp_bit); | |
708 | ||
79d72f45 HL |
709 | /* Types of condition jump used by macro-fusion. */ |
710 | enum mf_jcc_kind | |
711 | { | |
712 | mf_jcc_jo = 0, /* base opcode 0x70 */ | |
713 | mf_jcc_jc, /* base opcode 0x72 */ | |
714 | mf_jcc_je, /* base opcode 0x74 */ | |
715 | mf_jcc_jna, /* base opcode 0x76 */ | |
716 | mf_jcc_js, /* base opcode 0x78 */ | |
717 | mf_jcc_jp, /* base opcode 0x7a */ | |
718 | mf_jcc_jl, /* base opcode 0x7c */ | |
719 | mf_jcc_jle, /* base opcode 0x7e */ | |
720 | }; | |
721 | ||
722 | /* Types of compare flag-modifying insntructions used by macro-fusion. */ | |
723 | enum mf_cmp_kind | |
724 | { | |
725 | mf_cmp_test_and, /* test/cmp */ | |
726 | mf_cmp_alu_cmp, /* add/sub/cmp */ | |
727 | mf_cmp_incdec /* inc/dec */ | |
728 | }; | |
729 | ||
e379e5f3 L |
730 | /* The maximum padding size for fused jcc. CMP like instruction can |
731 | be 9 bytes and jcc can be 6 bytes. Leave room just in case for | |
732 | prefixes. */ | |
733 | #define MAX_FUSED_JCC_PADDING_SIZE 20 | |
734 | ||
735 | /* The maximum number of prefixes added for an instruction. */ | |
736 | static unsigned int align_branch_prefix_size = 5; | |
737 | ||
b6f8c7c4 L |
738 | /* Optimization: |
739 | 1. Clear the REX_W bit with register operand if possible. | |
740 | 2. Above plus use 128bit vector instruction to clear the full vector | |
741 | register. | |
742 | */ | |
743 | static int optimize = 0; | |
744 | ||
745 | /* Optimization: | |
746 | 1. Clear the REX_W bit with register operand if possible. | |
747 | 2. Above plus use 128bit vector instruction to clear the full vector | |
748 | register. | |
749 | 3. Above plus optimize "test{q,l,w} $imm8,%r{64,32,16}" to | |
750 | "testb $imm7,%r8". | |
751 | */ | |
752 | static int optimize_for_space = 0; | |
753 | ||
2ca3ace5 L |
754 | /* Register prefix used for error message. */ |
755 | static const char *register_prefix = "%"; | |
756 | ||
47926f60 KH |
757 | /* Used in 16 bit gcc mode to add an l suffix to call, ret, enter, |
758 | leave, push, and pop instructions so that gcc has the same stack | |
759 | frame as in 32 bit mode. */ | |
760 | static char stackop_size = '\0'; | |
eecb386c | 761 | |
12b55ccc L |
762 | /* Non-zero to optimize code alignment. */ |
763 | int optimize_align_code = 1; | |
764 | ||
47926f60 KH |
765 | /* Non-zero to quieten some warnings. */ |
766 | static int quiet_warnings = 0; | |
a38cf1db | 767 | |
d59a54c2 JB |
768 | /* Guard to avoid repeated warnings about non-16-bit code on 16-bit CPUs. */ |
769 | static bool pre_386_16bit_warned; | |
770 | ||
47926f60 KH |
771 | /* CPU name. */ |
772 | static const char *cpu_arch_name = NULL; | |
6305a203 | 773 | static char *cpu_sub_arch_name = NULL; |
a38cf1db | 774 | |
47926f60 | 775 | /* CPU feature flags. */ |
40fb9820 L |
776 | static i386_cpu_flags cpu_arch_flags = CPU_UNKNOWN_FLAGS; |
777 | ||
ccc9c027 L |
778 | /* If we have selected a cpu we are generating instructions for. */ |
779 | static int cpu_arch_tune_set = 0; | |
780 | ||
9103f4f4 | 781 | /* Cpu we are generating instructions for. */ |
fbf3f584 | 782 | enum processor_type cpu_arch_tune = PROCESSOR_UNKNOWN; |
9103f4f4 L |
783 | |
784 | /* CPU feature flags of cpu we are generating instructions for. */ | |
40fb9820 | 785 | static i386_cpu_flags cpu_arch_tune_flags; |
9103f4f4 | 786 | |
ccc9c027 | 787 | /* CPU instruction set architecture used. */ |
fbf3f584 | 788 | enum processor_type cpu_arch_isa = PROCESSOR_UNKNOWN; |
ccc9c027 | 789 | |
9103f4f4 | 790 | /* CPU feature flags of instruction set architecture used. */ |
fbf3f584 | 791 | i386_cpu_flags cpu_arch_isa_flags; |
9103f4f4 | 792 | |
fddf5b5b AM |
793 | /* If set, conditional jumps are not automatically promoted to handle |
794 | larger than a byte offset. */ | |
f68697e8 | 795 | static bool no_cond_jump_promotion = false; |
fddf5b5b | 796 | |
c0f3af97 L |
797 | /* Encode SSE instructions with VEX prefix. */ |
798 | static unsigned int sse2avx; | |
799 | ||
c8480b58 L |
800 | /* Encode aligned vector move as unaligned vector move. */ |
801 | static unsigned int use_unaligned_vector_move; | |
802 | ||
539f890d L |
803 | /* Encode scalar AVX instructions with specific vector length. */ |
804 | static enum | |
805 | { | |
806 | vex128 = 0, | |
807 | vex256 | |
808 | } avxscalar; | |
809 | ||
03751133 L |
810 | /* Encode VEX WIG instructions with specific vex.w. */ |
811 | static enum | |
812 | { | |
813 | vexw0 = 0, | |
814 | vexw1 | |
815 | } vexwig; | |
816 | ||
43234a1e L |
817 | /* Encode scalar EVEX LIG instructions with specific vector length. */ |
818 | static enum | |
819 | { | |
820 | evexl128 = 0, | |
821 | evexl256, | |
822 | evexl512 | |
823 | } evexlig; | |
824 | ||
825 | /* Encode EVEX WIG instructions with specific evex.w. */ | |
826 | static enum | |
827 | { | |
828 | evexw0 = 0, | |
829 | evexw1 | |
830 | } evexwig; | |
831 | ||
d3d3c6db IT |
832 | /* Value to encode in EVEX RC bits, for SAE-only instructions. */ |
833 | static enum rc_type evexrcig = rne; | |
834 | ||
29b0f896 | 835 | /* Pre-defined "_GLOBAL_OFFSET_TABLE_". */ |
87c245cc | 836 | static symbolS *GOT_symbol; |
29b0f896 | 837 | |
a4447b93 RH |
838 | /* The dwarf2 return column, adjusted for 32 or 64 bit. */ |
839 | unsigned int x86_dwarf2_return_column; | |
840 | ||
841 | /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */ | |
842 | int x86_cie_data_alignment; | |
843 | ||
252b5132 | 844 | /* Interface to relax_segment. |
fddf5b5b AM |
845 | There are 3 major relax states for 386 jump insns because the |
846 | different types of jumps add different sizes to frags when we're | |
e379e5f3 L |
847 | figuring out what sort of jump to choose to reach a given label. |
848 | ||
849 | BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING are used to align | |
850 | branches which are handled by md_estimate_size_before_relax() and | |
851 | i386_generic_table_relax_frag(). */ | |
252b5132 | 852 | |
47926f60 | 853 | /* Types. */ |
93c2a809 AM |
854 | #define UNCOND_JUMP 0 |
855 | #define COND_JUMP 1 | |
856 | #define COND_JUMP86 2 | |
e379e5f3 L |
857 | #define BRANCH_PADDING 3 |
858 | #define BRANCH_PREFIX 4 | |
859 | #define FUSED_JCC_PADDING 5 | |
fddf5b5b | 860 | |
47926f60 | 861 | /* Sizes. */ |
252b5132 RH |
862 | #define CODE16 1 |
863 | #define SMALL 0 | |
29b0f896 | 864 | #define SMALL16 (SMALL | CODE16) |
252b5132 | 865 | #define BIG 2 |
29b0f896 | 866 | #define BIG16 (BIG | CODE16) |
252b5132 RH |
867 | |
868 | #ifndef INLINE | |
869 | #ifdef __GNUC__ | |
870 | #define INLINE __inline__ | |
871 | #else | |
872 | #define INLINE | |
873 | #endif | |
874 | #endif | |
875 | ||
fddf5b5b AM |
876 | #define ENCODE_RELAX_STATE(type, size) \ |
877 | ((relax_substateT) (((type) << 2) | (size))) | |
878 | #define TYPE_FROM_RELAX_STATE(s) \ | |
879 | ((s) >> 2) | |
880 | #define DISP_SIZE_FROM_RELAX_STATE(s) \ | |
881 | ((((s) & 3) == BIG ? 4 : (((s) & 3) == BIG16 ? 2 : 1))) | |
252b5132 RH |
882 | |
883 | /* This table is used by relax_frag to promote short jumps to long | |
884 | ones where necessary. SMALL (short) jumps may be promoted to BIG | |
885 | (32 bit long) ones, and SMALL16 jumps to BIG16 (16 bit long). We | |
886 | don't allow a short jump in a 32 bit code segment to be promoted to | |
887 | a 16 bit offset jump because it's slower (requires data size | |
888 | prefix), and doesn't work, unless the destination is in the bottom | |
889 | 64k of the code segment (The top 16 bits of eip are zeroed). */ | |
890 | ||
891 | const relax_typeS md_relax_table[] = | |
892 | { | |
24eab124 AM |
893 | /* The fields are: |
894 | 1) most positive reach of this state, | |
895 | 2) most negative reach of this state, | |
93c2a809 | 896 | 3) how many bytes this mode will have in the variable part of the frag |
ce8a8b2f | 897 | 4) which index into the table to try if we can't fit into this one. */ |
252b5132 | 898 | |
fddf5b5b | 899 | /* UNCOND_JUMP states. */ |
93c2a809 AM |
900 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG)}, |
901 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16)}, | |
902 | /* dword jmp adds 4 bytes to frag: | |
903 | 0 extra opcode bytes, 4 displacement bytes. */ | |
252b5132 | 904 | {0, 0, 4, 0}, |
93c2a809 AM |
905 | /* word jmp adds 2 byte2 to frag: |
906 | 0 extra opcode bytes, 2 displacement bytes. */ | |
252b5132 RH |
907 | {0, 0, 2, 0}, |
908 | ||
93c2a809 AM |
909 | /* COND_JUMP states. */ |
910 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG)}, | |
911 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP, BIG16)}, | |
912 | /* dword conditionals adds 5 bytes to frag: | |
913 | 1 extra opcode byte, 4 displacement bytes. */ | |
914 | {0, 0, 5, 0}, | |
fddf5b5b | 915 | /* word conditionals add 3 bytes to frag: |
93c2a809 AM |
916 | 1 extra opcode byte, 2 displacement bytes. */ |
917 | {0, 0, 3, 0}, | |
918 | ||
919 | /* COND_JUMP86 states. */ | |
920 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG)}, | |
921 | {127 + 1, -128 + 1, 1, ENCODE_RELAX_STATE (COND_JUMP86, BIG16)}, | |
922 | /* dword conditionals adds 5 bytes to frag: | |
923 | 1 extra opcode byte, 4 displacement bytes. */ | |
924 | {0, 0, 5, 0}, | |
925 | /* word conditionals add 4 bytes to frag: | |
926 | 1 displacement byte and a 3 byte long branch insn. */ | |
927 | {0, 0, 4, 0} | |
252b5132 RH |
928 | }; |
929 | ||
6ceeed25 | 930 | #define ARCH(n, t, f, s) \ |
ae89daec JB |
931 | { STRING_COMMA_LEN (#n), s, PROCESSOR_ ## t, CPU_ ## f ## _FLAGS, \ |
932 | CPU_NONE_FLAGS } | |
933 | #define SUBARCH(n, e, d, s) \ | |
934 | { STRING_COMMA_LEN (#n), s, PROCESSOR_NONE, CPU_ ## e ## _FLAGS, \ | |
935 | CPU_ ## d ## _FLAGS } | |
6ceeed25 | 936 | |
9103f4f4 L |
937 | static const arch_entry cpu_arch[] = |
938 | { | |
3ce2ebcf JB |
939 | /* Do not replace the first two entries - i386_target_format() and |
940 | set_cpu_arch() rely on them being there in this order. */ | |
6ceeed25 JB |
941 | ARCH (generic32, GENERIC32, GENERIC32, false), |
942 | ARCH (generic64, GENERIC64, GENERIC64, false), | |
943 | ARCH (i8086, UNKNOWN, NONE, false), | |
944 | ARCH (i186, UNKNOWN, I186, false), | |
945 | ARCH (i286, UNKNOWN, I286, false), | |
946 | ARCH (i386, I386, I386, false), | |
947 | ARCH (i486, I486, I486, false), | |
948 | ARCH (i586, PENTIUM, I586, false), | |
949 | ARCH (i686, PENTIUMPRO, I686, false), | |
950 | ARCH (pentium, PENTIUM, I586, false), | |
951 | ARCH (pentiumpro, PENTIUMPRO, PENTIUMPRO, false), | |
952 | ARCH (pentiumii, PENTIUMPRO, P2, false), | |
953 | ARCH (pentiumiii, PENTIUMPRO, P3, false), | |
954 | ARCH (pentium4, PENTIUM4, P4, false), | |
955 | ARCH (prescott, NOCONA, CORE, false), | |
956 | ARCH (nocona, NOCONA, NOCONA, false), | |
957 | ARCH (yonah, CORE, CORE, true), | |
958 | ARCH (core, CORE, CORE, false), | |
959 | ARCH (merom, CORE2, CORE2, true), | |
960 | ARCH (core2, CORE2, CORE2, false), | |
961 | ARCH (corei7, COREI7, COREI7, false), | |
962 | ARCH (iamcu, IAMCU, IAMCU, false), | |
963 | ARCH (k6, K6, K6, false), | |
964 | ARCH (k6_2, K6, K6_2, false), | |
965 | ARCH (athlon, ATHLON, ATHLON, false), | |
966 | ARCH (sledgehammer, K8, K8, true), | |
967 | ARCH (opteron, K8, K8, false), | |
968 | ARCH (k8, K8, K8, false), | |
969 | ARCH (amdfam10, AMDFAM10, AMDFAM10, false), | |
970 | ARCH (bdver1, BD, BDVER1, false), | |
971 | ARCH (bdver2, BD, BDVER2, false), | |
972 | ARCH (bdver3, BD, BDVER3, false), | |
973 | ARCH (bdver4, BD, BDVER4, false), | |
974 | ARCH (znver1, ZNVER, ZNVER1, false), | |
975 | ARCH (znver2, ZNVER, ZNVER2, false), | |
976 | ARCH (znver3, ZNVER, ZNVER3, false), | |
977 | ARCH (btver1, BT, BTVER1, false), | |
978 | ARCH (btver2, BT, BTVER2, false), | |
979 | ||
ae89daec JB |
980 | SUBARCH (8087, 8087, ANY_X87, false), |
981 | SUBARCH (87, NONE, ANY_X87, false), /* Disable only! */ | |
982 | SUBARCH (287, 287, ANY_287, false), | |
983 | SUBARCH (387, 387, ANY_387, false), | |
984 | SUBARCH (687, 687, ANY_687, false), | |
985 | SUBARCH (cmov, CMOV, ANY_CMOV, false), | |
986 | SUBARCH (fxsr, FXSR, ANY_FXSR, false), | |
987 | SUBARCH (mmx, MMX, ANY_MMX, false), | |
988 | SUBARCH (sse, SSE, ANY_SSE, false), | |
989 | SUBARCH (sse2, SSE2, ANY_SSE2, false), | |
990 | SUBARCH (sse3, SSE3, ANY_SSE3, false), | |
991 | SUBARCH (sse4a, SSE4A, ANY_SSE4A, false), | |
992 | SUBARCH (ssse3, SSSE3, ANY_SSSE3, false), | |
993 | SUBARCH (sse4.1, SSE4_1, ANY_SSE4_1, false), | |
994 | SUBARCH (sse4.2, SSE4_2, ANY_SSE4_2, false), | |
995 | SUBARCH (sse4, SSE4_2, ANY_SSE4_1, false), | |
996 | SUBARCH (avx, AVX, ANY_AVX, false), | |
997 | SUBARCH (avx2, AVX2, ANY_AVX2, false), | |
998 | SUBARCH (avx512f, AVX512F, ANY_AVX512F, false), | |
999 | SUBARCH (avx512cd, AVX512CD, ANY_AVX512CD, false), | |
1000 | SUBARCH (avx512er, AVX512ER, ANY_AVX512ER, false), | |
1001 | SUBARCH (avx512pf, AVX512PF, ANY_AVX512PF, false), | |
1002 | SUBARCH (avx512dq, AVX512DQ, ANY_AVX512DQ, false), | |
1003 | SUBARCH (avx512bw, AVX512BW, ANY_AVX512BW, false), | |
1004 | SUBARCH (avx512vl, AVX512VL, ANY_AVX512VL, false), | |
1005 | SUBARCH (vmx, VMX, VMX, false), | |
1006 | SUBARCH (vmfunc, VMFUNC, VMFUNC, false), | |
1007 | SUBARCH (smx, SMX, SMX, false), | |
1008 | SUBARCH (xsave, XSAVE, XSAVE, false), | |
1009 | SUBARCH (xsaveopt, XSAVEOPT, XSAVEOPT, false), | |
1010 | SUBARCH (xsavec, XSAVEC, XSAVEC, false), | |
1011 | SUBARCH (xsaves, XSAVES, XSAVES, false), | |
1012 | SUBARCH (aes, AES, AES, false), | |
1013 | SUBARCH (pclmul, PCLMUL, PCLMUL, false), | |
1014 | SUBARCH (clmul, PCLMUL, PCLMUL, true), | |
1015 | SUBARCH (fsgsbase, FSGSBASE, FSGSBASE, false), | |
1016 | SUBARCH (rdrnd, RDRND, RDRND, false), | |
1017 | SUBARCH (f16c, F16C, F16C, false), | |
1018 | SUBARCH (bmi2, BMI2, BMI2, false), | |
1019 | SUBARCH (fma, FMA, FMA, false), | |
1020 | SUBARCH (fma4, FMA4, FMA4, false), | |
1021 | SUBARCH (xop, XOP, XOP, false), | |
1022 | SUBARCH (lwp, LWP, LWP, false), | |
1023 | SUBARCH (movbe, MOVBE, MOVBE, false), | |
1024 | SUBARCH (cx16, CX16, CX16, false), | |
1025 | SUBARCH (ept, EPT, EPT, false), | |
1026 | SUBARCH (lzcnt, LZCNT, LZCNT, false), | |
1027 | SUBARCH (popcnt, POPCNT, POPCNT, false), | |
1028 | SUBARCH (hle, HLE, HLE, false), | |
1029 | SUBARCH (rtm, RTM, RTM, false), | |
1030 | SUBARCH (invpcid, INVPCID, INVPCID, false), | |
1031 | SUBARCH (clflush, CLFLUSH, CLFLUSH, false), | |
1032 | SUBARCH (nop, NOP, NOP, false), | |
1033 | SUBARCH (syscall, SYSCALL, SYSCALL, false), | |
1034 | SUBARCH (rdtscp, RDTSCP, RDTSCP, false), | |
1035 | SUBARCH (3dnow, 3DNOW, 3DNOW, false), | |
1036 | SUBARCH (3dnowa, 3DNOWA, 3DNOWA, false), | |
1037 | SUBARCH (padlock, PADLOCK, PADLOCK, false), | |
1038 | SUBARCH (pacifica, SVME, SVME, true), | |
1039 | SUBARCH (svme, SVME, SVME, false), | |
1040 | SUBARCH (sse4a, SSE4A, SSE4A, false), | |
1041 | SUBARCH (abm, ABM, ABM, false), | |
1042 | SUBARCH (bmi, BMI, BMI, false), | |
1043 | SUBARCH (tbm, TBM, TBM, false), | |
1044 | SUBARCH (adx, ADX, ADX, false), | |
1045 | SUBARCH (rdseed, RDSEED, RDSEED, false), | |
1046 | SUBARCH (prfchw, PRFCHW, PRFCHW, false), | |
1047 | SUBARCH (smap, SMAP, SMAP, false), | |
1048 | SUBARCH (mpx, MPX, MPX, false), | |
1049 | SUBARCH (sha, SHA, SHA, false), | |
1050 | SUBARCH (clflushopt, CLFLUSHOPT, CLFLUSHOPT, false), | |
1051 | SUBARCH (prefetchwt1, PREFETCHWT1, PREFETCHWT1, false), | |
1052 | SUBARCH (se1, SE1, SE1, false), | |
1053 | SUBARCH (clwb, CLWB, CLWB, false), | |
1054 | SUBARCH (avx512ifma, AVX512IFMA, ANY_AVX512IFMA, false), | |
1055 | SUBARCH (avx512vbmi, AVX512VBMI, ANY_AVX512VBMI, false), | |
1056 | SUBARCH (avx512_4fmaps, AVX512_4FMAPS, ANY_AVX512_4FMAPS, false), | |
1057 | SUBARCH (avx512_4vnniw, AVX512_4VNNIW, ANY_AVX512_4VNNIW, false), | |
1058 | SUBARCH (avx512_vpopcntdq, AVX512_VPOPCNTDQ, ANY_AVX512_VPOPCNTDQ, false), | |
1059 | SUBARCH (avx512_vbmi2, AVX512_VBMI2, ANY_AVX512_VBMI2, false), | |
1060 | SUBARCH (avx512_vnni, AVX512_VNNI, ANY_AVX512_VNNI, false), | |
1061 | SUBARCH (avx512_bitalg, AVX512_BITALG, ANY_AVX512_BITALG, false), | |
1062 | SUBARCH (avx_vnni, AVX_VNNI, ANY_AVX_VNNI, false), | |
1063 | SUBARCH (clzero, CLZERO, CLZERO, false), | |
1064 | SUBARCH (mwaitx, MWAITX, MWAITX, false), | |
1065 | SUBARCH (ospke, OSPKE, OSPKE, false), | |
1066 | SUBARCH (rdpid, RDPID, RDPID, false), | |
1067 | SUBARCH (ptwrite, PTWRITE, PTWRITE, false), | |
1068 | SUBARCH (ibt, IBT, ANY_IBT, false), | |
1069 | SUBARCH (shstk, SHSTK, ANY_SHSTK, false), | |
1070 | SUBARCH (gfni, GFNI, GFNI, false), | |
1071 | SUBARCH (vaes, VAES, VAES, false), | |
1072 | SUBARCH (vpclmulqdq, VPCLMULQDQ, VPCLMULQDQ, false), | |
1073 | SUBARCH (wbnoinvd, WBNOINVD, WBNOINVD, false), | |
1074 | SUBARCH (pconfig, PCONFIG, PCONFIG, false), | |
1075 | SUBARCH (waitpkg, WAITPKG, WAITPKG, false), | |
1076 | SUBARCH (cldemote, CLDEMOTE, CLDEMOTE, false), | |
1077 | SUBARCH (amx_int8, AMX_INT8, ANY_AMX_INT8, false), | |
1078 | SUBARCH (amx_bf16, AMX_BF16, ANY_AMX_BF16, false), | |
1079 | SUBARCH (amx_tile, AMX_TILE, ANY_AMX_TILE, false), | |
1080 | SUBARCH (movdiri, MOVDIRI, ANY_MOVDIRI, false), | |
1081 | SUBARCH (movdir64b, MOVDIR64B, ANY_MOVDIR64B, false), | |
1082 | SUBARCH (avx512_bf16, AVX512_BF16, ANY_AVX512_BF16, false), | |
1083 | SUBARCH (avx512_vp2intersect, AVX512_VP2INTERSECT, | |
1084 | ANY_AVX512_VP2INTERSECT, false), | |
1085 | SUBARCH (tdx, TDX, ANY_TDX, false), | |
1086 | SUBARCH (enqcmd, ENQCMD, ANY_ENQCMD, false), | |
1087 | SUBARCH (serialize, SERIALIZE, ANY_SERIALIZE, false), | |
1088 | SUBARCH (rdpru, RDPRU, RDPRU, false), | |
1089 | SUBARCH (mcommit, MCOMMIT, MCOMMIT, false), | |
1090 | SUBARCH (sev_es, SEV_ES, SEV_ES, false), | |
1091 | SUBARCH (tsxldtrk, TSXLDTRK, ANY_TSXLDTRK, false), | |
1092 | SUBARCH (kl, KL, ANY_KL, false), | |
1093 | SUBARCH (widekl, WIDEKL, ANY_WIDEKL, false), | |
1094 | SUBARCH (uintr, UINTR, ANY_UINTR, false), | |
1095 | SUBARCH (hreset, HRESET, ANY_HRESET, false), | |
1096 | SUBARCH (avx512_fp16, AVX512_FP16, ANY_AVX512_FP16, false), | |
293f5f65 L |
1097 | }; |
1098 | ||
6ceeed25 JB |
1099 | #undef SUBARCH |
1100 | #undef ARCH | |
1101 | ||
704209c0 | 1102 | #ifdef I386COFF |
a6c24e68 NC |
1103 | /* Like s_lcomm_internal in gas/read.c but the alignment string |
1104 | is allowed to be optional. */ | |
1105 | ||
1106 | static symbolS * | |
1107 | pe_lcomm_internal (int needs_align, symbolS *symbolP, addressT size) | |
1108 | { | |
1109 | addressT align = 0; | |
1110 | ||
1111 | SKIP_WHITESPACE (); | |
1112 | ||
7ab9ffdd | 1113 | if (needs_align |
a6c24e68 NC |
1114 | && *input_line_pointer == ',') |
1115 | { | |
1116 | align = parse_align (needs_align - 1); | |
7ab9ffdd | 1117 | |
a6c24e68 NC |
1118 | if (align == (addressT) -1) |
1119 | return NULL; | |
1120 | } | |
1121 | else | |
1122 | { | |
1123 | if (size >= 8) | |
1124 | align = 3; | |
1125 | else if (size >= 4) | |
1126 | align = 2; | |
1127 | else if (size >= 2) | |
1128 | align = 1; | |
1129 | else | |
1130 | align = 0; | |
1131 | } | |
1132 | ||
1133 | bss_alloc (symbolP, size, align); | |
1134 | return symbolP; | |
1135 | } | |
1136 | ||
704209c0 | 1137 | static void |
a6c24e68 NC |
1138 | pe_lcomm (int needs_align) |
1139 | { | |
1140 | s_comm_internal (needs_align * 2, pe_lcomm_internal); | |
1141 | } | |
704209c0 | 1142 | #endif |
a6c24e68 | 1143 | |
29b0f896 AM |
1144 | const pseudo_typeS md_pseudo_table[] = |
1145 | { | |
1146 | #if !defined(OBJ_AOUT) && !defined(USE_ALIGN_PTWO) | |
1147 | {"align", s_align_bytes, 0}, | |
1148 | #else | |
1149 | {"align", s_align_ptwo, 0}, | |
1150 | #endif | |
1151 | {"arch", set_cpu_arch, 0}, | |
1152 | #ifndef I386COFF | |
1153 | {"bss", s_bss, 0}, | |
a6c24e68 NC |
1154 | #else |
1155 | {"lcomm", pe_lcomm, 1}, | |
29b0f896 AM |
1156 | #endif |
1157 | {"ffloat", float_cons, 'f'}, | |
1158 | {"dfloat", float_cons, 'd'}, | |
1159 | {"tfloat", float_cons, 'x'}, | |
7d19d096 | 1160 | {"hfloat", float_cons, 'h'}, |
de133cf9 | 1161 | {"bfloat16", float_cons, 'b'}, |
29b0f896 | 1162 | {"value", cons, 2}, |
d182319b | 1163 | {"slong", signed_cons, 4}, |
29b0f896 AM |
1164 | {"noopt", s_ignore, 0}, |
1165 | {"optim", s_ignore, 0}, | |
1166 | {"code16gcc", set_16bit_gcc_code_flag, CODE_16BIT}, | |
1167 | {"code16", set_code_flag, CODE_16BIT}, | |
1168 | {"code32", set_code_flag, CODE_32BIT}, | |
da5f19a2 | 1169 | #ifdef BFD64 |
29b0f896 | 1170 | {"code64", set_code_flag, CODE_64BIT}, |
da5f19a2 | 1171 | #endif |
29b0f896 AM |
1172 | {"intel_syntax", set_intel_syntax, 1}, |
1173 | {"att_syntax", set_intel_syntax, 0}, | |
1efbbeb4 L |
1174 | {"intel_mnemonic", set_intel_mnemonic, 1}, |
1175 | {"att_mnemonic", set_intel_mnemonic, 0}, | |
db51cc60 L |
1176 | {"allow_index_reg", set_allow_index_reg, 1}, |
1177 | {"disallow_index_reg", set_allow_index_reg, 0}, | |
7bab8ab5 JB |
1178 | {"sse_check", set_check, 0}, |
1179 | {"operand_check", set_check, 1}, | |
3b22753a L |
1180 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1181 | {"largecomm", handle_large_common, 0}, | |
07a53e5c | 1182 | #else |
68d20676 | 1183 | {"file", dwarf2_directive_file, 0}, |
07a53e5c RH |
1184 | {"loc", dwarf2_directive_loc, 0}, |
1185 | {"loc_mark_labels", dwarf2_directive_loc_mark_labels, 0}, | |
3b22753a | 1186 | #endif |
6482c264 NC |
1187 | #ifdef TE_PE |
1188 | {"secrel32", pe_directive_secrel, 0}, | |
145667f8 | 1189 | {"secidx", pe_directive_secidx, 0}, |
6482c264 | 1190 | #endif |
29b0f896 AM |
1191 | {0, 0, 0} |
1192 | }; | |
1193 | ||
1194 | /* For interface with expression (). */ | |
1195 | extern char *input_line_pointer; | |
1196 | ||
1197 | /* Hash table for instruction mnemonic lookup. */ | |
629310ab | 1198 | static htab_t op_hash; |
29b0f896 AM |
1199 | |
1200 | /* Hash table for register lookup. */ | |
629310ab | 1201 | static htab_t reg_hash; |
29b0f896 | 1202 | \f |
ce8a8b2f AM |
1203 | /* Various efficient no-op patterns for aligning code labels. |
1204 | Note: Don't try to assemble the instructions in the comments. | |
1205 | 0L and 0w are not legal. */ | |
62a02d25 L |
1206 | static const unsigned char f32_1[] = |
1207 | {0x90}; /* nop */ | |
1208 | static const unsigned char f32_2[] = | |
1209 | {0x66,0x90}; /* xchg %ax,%ax */ | |
1210 | static const unsigned char f32_3[] = | |
1211 | {0x8d,0x76,0x00}; /* leal 0(%esi),%esi */ | |
1212 | static const unsigned char f32_4[] = | |
1213 | {0x8d,0x74,0x26,0x00}; /* leal 0(%esi,1),%esi */ | |
62a02d25 L |
1214 | static const unsigned char f32_6[] = |
1215 | {0x8d,0xb6,0x00,0x00,0x00,0x00}; /* leal 0L(%esi),%esi */ | |
1216 | static const unsigned char f32_7[] = | |
1217 | {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00}; /* leal 0L(%esi,1),%esi */ | |
62a02d25 | 1218 | static const unsigned char f16_3[] = |
3ae729d5 | 1219 | {0x8d,0x74,0x00}; /* lea 0(%si),%si */ |
62a02d25 | 1220 | static const unsigned char f16_4[] = |
3ae729d5 L |
1221 | {0x8d,0xb4,0x00,0x00}; /* lea 0W(%si),%si */ |
1222 | static const unsigned char jump_disp8[] = | |
1223 | {0xeb}; /* jmp disp8 */ | |
1224 | static const unsigned char jump32_disp32[] = | |
1225 | {0xe9}; /* jmp disp32 */ | |
1226 | static const unsigned char jump16_disp32[] = | |
1227 | {0x66,0xe9}; /* jmp disp32 */ | |
62a02d25 L |
1228 | /* 32-bit NOPs patterns. */ |
1229 | static const unsigned char *const f32_patt[] = { | |
3ae729d5 | 1230 | f32_1, f32_2, f32_3, f32_4, NULL, f32_6, f32_7 |
62a02d25 L |
1231 | }; |
1232 | /* 16-bit NOPs patterns. */ | |
1233 | static const unsigned char *const f16_patt[] = { | |
3ae729d5 | 1234 | f32_1, f32_2, f16_3, f16_4 |
62a02d25 L |
1235 | }; |
1236 | /* nopl (%[re]ax) */ | |
1237 | static const unsigned char alt_3[] = | |
1238 | {0x0f,0x1f,0x00}; | |
1239 | /* nopl 0(%[re]ax) */ | |
1240 | static const unsigned char alt_4[] = | |
1241 | {0x0f,0x1f,0x40,0x00}; | |
1242 | /* nopl 0(%[re]ax,%[re]ax,1) */ | |
1243 | static const unsigned char alt_5[] = | |
1244 | {0x0f,0x1f,0x44,0x00,0x00}; | |
1245 | /* nopw 0(%[re]ax,%[re]ax,1) */ | |
1246 | static const unsigned char alt_6[] = | |
1247 | {0x66,0x0f,0x1f,0x44,0x00,0x00}; | |
1248 | /* nopl 0L(%[re]ax) */ | |
1249 | static const unsigned char alt_7[] = | |
1250 | {0x0f,0x1f,0x80,0x00,0x00,0x00,0x00}; | |
1251 | /* nopl 0L(%[re]ax,%[re]ax,1) */ | |
1252 | static const unsigned char alt_8[] = | |
1253 | {0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1254 | /* nopw 0L(%[re]ax,%[re]ax,1) */ | |
1255 | static const unsigned char alt_9[] = | |
1256 | {0x66,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
1257 | /* nopw %cs:0L(%[re]ax,%[re]ax,1) */ | |
1258 | static const unsigned char alt_10[] = | |
1259 | {0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
3ae729d5 L |
1260 | /* data16 nopw %cs:0L(%eax,%eax,1) */ |
1261 | static const unsigned char alt_11[] = | |
1262 | {0x66,0x66,0x2e,0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00}; | |
62a02d25 L |
1263 | /* 32-bit and 64-bit NOPs patterns. */ |
1264 | static const unsigned char *const alt_patt[] = { | |
1265 | f32_1, f32_2, alt_3, alt_4, alt_5, alt_6, alt_7, alt_8, | |
3ae729d5 | 1266 | alt_9, alt_10, alt_11 |
62a02d25 L |
1267 | }; |
1268 | ||
1269 | /* Genenerate COUNT bytes of NOPs to WHERE from PATT with the maximum | |
1270 | size of a single NOP instruction MAX_SINGLE_NOP_SIZE. */ | |
1271 | ||
1272 | static void | |
1273 | i386_output_nops (char *where, const unsigned char *const *patt, | |
1274 | int count, int max_single_nop_size) | |
1275 | ||
1276 | { | |
3ae729d5 L |
1277 | /* Place the longer NOP first. */ |
1278 | int last; | |
1279 | int offset; | |
3076e594 NC |
1280 | const unsigned char *nops; |
1281 | ||
1282 | if (max_single_nop_size < 1) | |
1283 | { | |
1284 | as_fatal (_("i386_output_nops called to generate nops of at most %d bytes!"), | |
1285 | max_single_nop_size); | |
1286 | return; | |
1287 | } | |
1288 | ||
1289 | nops = patt[max_single_nop_size - 1]; | |
3ae729d5 L |
1290 | |
1291 | /* Use the smaller one if the requsted one isn't available. */ | |
1292 | if (nops == NULL) | |
62a02d25 | 1293 | { |
3ae729d5 L |
1294 | max_single_nop_size--; |
1295 | nops = patt[max_single_nop_size - 1]; | |
62a02d25 L |
1296 | } |
1297 | ||
3ae729d5 L |
1298 | last = count % max_single_nop_size; |
1299 | ||
1300 | count -= last; | |
1301 | for (offset = 0; offset < count; offset += max_single_nop_size) | |
1302 | memcpy (where + offset, nops, max_single_nop_size); | |
1303 | ||
1304 | if (last) | |
1305 | { | |
1306 | nops = patt[last - 1]; | |
1307 | if (nops == NULL) | |
1308 | { | |
1309 | /* Use the smaller one plus one-byte NOP if the needed one | |
1310 | isn't available. */ | |
1311 | last--; | |
1312 | nops = patt[last - 1]; | |
1313 | memcpy (where + offset, nops, last); | |
1314 | where[offset + last] = *patt[0]; | |
1315 | } | |
1316 | else | |
1317 | memcpy (where + offset, nops, last); | |
1318 | } | |
62a02d25 L |
1319 | } |
1320 | ||
3ae729d5 L |
1321 | static INLINE int |
1322 | fits_in_imm7 (offsetT num) | |
1323 | { | |
1324 | return (num & 0x7f) == num; | |
1325 | } | |
1326 | ||
1327 | static INLINE int | |
1328 | fits_in_imm31 (offsetT num) | |
1329 | { | |
1330 | return (num & 0x7fffffff) == num; | |
1331 | } | |
62a02d25 L |
1332 | |
1333 | /* Genenerate COUNT bytes of NOPs to WHERE with the maximum size of a | |
1334 | single NOP instruction LIMIT. */ | |
1335 | ||
1336 | void | |
3ae729d5 | 1337 | i386_generate_nops (fragS *fragP, char *where, offsetT count, int limit) |
62a02d25 | 1338 | { |
3ae729d5 | 1339 | const unsigned char *const *patt = NULL; |
62a02d25 | 1340 | int max_single_nop_size; |
3ae729d5 L |
1341 | /* Maximum number of NOPs before switching to jump over NOPs. */ |
1342 | int max_number_of_nops; | |
62a02d25 | 1343 | |
3ae729d5 | 1344 | switch (fragP->fr_type) |
62a02d25 | 1345 | { |
3ae729d5 L |
1346 | case rs_fill_nop: |
1347 | case rs_align_code: | |
1348 | break; | |
e379e5f3 L |
1349 | case rs_machine_dependent: |
1350 | /* Allow NOP padding for jumps and calls. */ | |
1351 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
1352 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
1353 | break; | |
1354 | /* Fall through. */ | |
3ae729d5 | 1355 | default: |
62a02d25 L |
1356 | return; |
1357 | } | |
1358 | ||
ccc9c027 L |
1359 | /* We need to decide which NOP sequence to use for 32bit and |
1360 | 64bit. When -mtune= is used: | |
4eed87de | 1361 | |
76bc74dc L |
1362 | 1. For PROCESSOR_I386, PROCESSOR_I486, PROCESSOR_PENTIUM and |
1363 | PROCESSOR_GENERIC32, f32_patt will be used. | |
80b8656c L |
1364 | 2. For the rest, alt_patt will be used. |
1365 | ||
1366 | When -mtune= isn't used, alt_patt will be used if | |
22109423 | 1367 | cpu_arch_isa_flags has CpuNop. Otherwise, f32_patt will |
76bc74dc | 1368 | be used. |
ccc9c027 L |
1369 | |
1370 | When -march= or .arch is used, we can't use anything beyond | |
1371 | cpu_arch_isa_flags. */ | |
1372 | ||
1373 | if (flag_code == CODE_16BIT) | |
1374 | { | |
3ae729d5 L |
1375 | patt = f16_patt; |
1376 | max_single_nop_size = sizeof (f16_patt) / sizeof (f16_patt[0]); | |
1377 | /* Limit number of NOPs to 2 in 16-bit mode. */ | |
1378 | max_number_of_nops = 2; | |
252b5132 | 1379 | } |
33fef721 | 1380 | else |
ccc9c027 | 1381 | { |
fbf3f584 | 1382 | if (fragP->tc_frag_data.isa == PROCESSOR_UNKNOWN) |
ccc9c027 L |
1383 | { |
1384 | /* PROCESSOR_UNKNOWN means that all ISAs may be used. */ | |
1385 | switch (cpu_arch_tune) | |
1386 | { | |
1387 | case PROCESSOR_UNKNOWN: | |
1388 | /* We use cpu_arch_isa_flags to check if we SHOULD | |
22109423 L |
1389 | optimize with nops. */ |
1390 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1391 | patt = alt_patt; |
ccc9c027 L |
1392 | else |
1393 | patt = f32_patt; | |
1394 | break; | |
ccc9c027 L |
1395 | case PROCESSOR_PENTIUM4: |
1396 | case PROCESSOR_NOCONA: | |
ef05d495 | 1397 | case PROCESSOR_CORE: |
76bc74dc | 1398 | case PROCESSOR_CORE2: |
bd5295b2 | 1399 | case PROCESSOR_COREI7: |
76bc74dc | 1400 | case PROCESSOR_GENERIC64: |
ccc9c027 L |
1401 | case PROCESSOR_K6: |
1402 | case PROCESSOR_ATHLON: | |
1403 | case PROCESSOR_K8: | |
4eed87de | 1404 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1405 | case PROCESSOR_BD: |
029f3522 | 1406 | case PROCESSOR_ZNVER: |
7b458c12 | 1407 | case PROCESSOR_BT: |
80b8656c | 1408 | patt = alt_patt; |
ccc9c027 | 1409 | break; |
76bc74dc | 1410 | case PROCESSOR_I386: |
ccc9c027 L |
1411 | case PROCESSOR_I486: |
1412 | case PROCESSOR_PENTIUM: | |
2dde1948 | 1413 | case PROCESSOR_PENTIUMPRO: |
81486035 | 1414 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1415 | case PROCESSOR_GENERIC32: |
1416 | patt = f32_patt; | |
1417 | break; | |
c368d2a8 JB |
1418 | case PROCESSOR_NONE: |
1419 | abort (); | |
4eed87de | 1420 | } |
ccc9c027 L |
1421 | } |
1422 | else | |
1423 | { | |
fbf3f584 | 1424 | switch (fragP->tc_frag_data.tune) |
ccc9c027 L |
1425 | { |
1426 | case PROCESSOR_UNKNOWN: | |
e6a14101 | 1427 | /* When cpu_arch_isa is set, cpu_arch_tune shouldn't be |
ccc9c027 L |
1428 | PROCESSOR_UNKNOWN. */ |
1429 | abort (); | |
1430 | break; | |
1431 | ||
76bc74dc | 1432 | case PROCESSOR_I386: |
ccc9c027 L |
1433 | case PROCESSOR_I486: |
1434 | case PROCESSOR_PENTIUM: | |
81486035 | 1435 | case PROCESSOR_IAMCU: |
ccc9c027 L |
1436 | case PROCESSOR_K6: |
1437 | case PROCESSOR_ATHLON: | |
1438 | case PROCESSOR_K8: | |
4eed87de | 1439 | case PROCESSOR_AMDFAM10: |
8aedb9fe | 1440 | case PROCESSOR_BD: |
029f3522 | 1441 | case PROCESSOR_ZNVER: |
7b458c12 | 1442 | case PROCESSOR_BT: |
ccc9c027 L |
1443 | case PROCESSOR_GENERIC32: |
1444 | /* We use cpu_arch_isa_flags to check if we CAN optimize | |
22109423 L |
1445 | with nops. */ |
1446 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) | |
80b8656c | 1447 | patt = alt_patt; |
ccc9c027 L |
1448 | else |
1449 | patt = f32_patt; | |
1450 | break; | |
76bc74dc L |
1451 | case PROCESSOR_PENTIUMPRO: |
1452 | case PROCESSOR_PENTIUM4: | |
1453 | case PROCESSOR_NOCONA: | |
1454 | case PROCESSOR_CORE: | |
ef05d495 | 1455 | case PROCESSOR_CORE2: |
bd5295b2 | 1456 | case PROCESSOR_COREI7: |
22109423 | 1457 | if (fragP->tc_frag_data.isa_flags.bitfield.cpunop) |
80b8656c | 1458 | patt = alt_patt; |
ccc9c027 L |
1459 | else |
1460 | patt = f32_patt; | |
1461 | break; | |
1462 | case PROCESSOR_GENERIC64: | |
80b8656c | 1463 | patt = alt_patt; |
ccc9c027 | 1464 | break; |
c368d2a8 JB |
1465 | case PROCESSOR_NONE: |
1466 | abort (); | |
4eed87de | 1467 | } |
ccc9c027 L |
1468 | } |
1469 | ||
76bc74dc L |
1470 | if (patt == f32_patt) |
1471 | { | |
3ae729d5 L |
1472 | max_single_nop_size = sizeof (f32_patt) / sizeof (f32_patt[0]); |
1473 | /* Limit number of NOPs to 2 for older processors. */ | |
1474 | max_number_of_nops = 2; | |
76bc74dc L |
1475 | } |
1476 | else | |
1477 | { | |
3ae729d5 L |
1478 | max_single_nop_size = sizeof (alt_patt) / sizeof (alt_patt[0]); |
1479 | /* Limit number of NOPs to 7 for newer processors. */ | |
1480 | max_number_of_nops = 7; | |
1481 | } | |
1482 | } | |
1483 | ||
1484 | if (limit == 0) | |
1485 | limit = max_single_nop_size; | |
1486 | ||
1487 | if (fragP->fr_type == rs_fill_nop) | |
1488 | { | |
1489 | /* Output NOPs for .nop directive. */ | |
1490 | if (limit > max_single_nop_size) | |
1491 | { | |
1492 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1493 | _("invalid single nop size: %d " | |
1494 | "(expect within [0, %d])"), | |
1495 | limit, max_single_nop_size); | |
1496 | return; | |
1497 | } | |
1498 | } | |
e379e5f3 | 1499 | else if (fragP->fr_type != rs_machine_dependent) |
3ae729d5 L |
1500 | fragP->fr_var = count; |
1501 | ||
1502 | if ((count / max_single_nop_size) > max_number_of_nops) | |
1503 | { | |
1504 | /* Generate jump over NOPs. */ | |
1505 | offsetT disp = count - 2; | |
1506 | if (fits_in_imm7 (disp)) | |
1507 | { | |
1508 | /* Use "jmp disp8" if possible. */ | |
1509 | count = disp; | |
1510 | where[0] = jump_disp8[0]; | |
1511 | where[1] = count; | |
1512 | where += 2; | |
1513 | } | |
1514 | else | |
1515 | { | |
1516 | unsigned int size_of_jump; | |
1517 | ||
1518 | if (flag_code == CODE_16BIT) | |
1519 | { | |
1520 | where[0] = jump16_disp32[0]; | |
1521 | where[1] = jump16_disp32[1]; | |
1522 | size_of_jump = 2; | |
1523 | } | |
1524 | else | |
1525 | { | |
1526 | where[0] = jump32_disp32[0]; | |
1527 | size_of_jump = 1; | |
1528 | } | |
1529 | ||
1530 | count -= size_of_jump + 4; | |
1531 | if (!fits_in_imm31 (count)) | |
1532 | { | |
1533 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
1534 | _("jump over nop padding out of range")); | |
1535 | return; | |
1536 | } | |
1537 | ||
1538 | md_number_to_chars (where + size_of_jump, count, 4); | |
1539 | where += size_of_jump + 4; | |
76bc74dc | 1540 | } |
ccc9c027 | 1541 | } |
3ae729d5 L |
1542 | |
1543 | /* Generate multiple NOPs. */ | |
1544 | i386_output_nops (where, patt, count, limit); | |
252b5132 RH |
1545 | } |
1546 | ||
c6fb90c8 | 1547 | static INLINE int |
0dfbf9d7 | 1548 | operand_type_all_zero (const union i386_operand_type *x) |
40fb9820 | 1549 | { |
0dfbf9d7 | 1550 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1551 | { |
1552 | case 3: | |
0dfbf9d7 | 1553 | if (x->array[2]) |
c6fb90c8 | 1554 | return 0; |
1a0670f3 | 1555 | /* Fall through. */ |
c6fb90c8 | 1556 | case 2: |
0dfbf9d7 | 1557 | if (x->array[1]) |
c6fb90c8 | 1558 | return 0; |
1a0670f3 | 1559 | /* Fall through. */ |
c6fb90c8 | 1560 | case 1: |
0dfbf9d7 | 1561 | return !x->array[0]; |
c6fb90c8 L |
1562 | default: |
1563 | abort (); | |
1564 | } | |
40fb9820 L |
1565 | } |
1566 | ||
c6fb90c8 | 1567 | static INLINE void |
0dfbf9d7 | 1568 | operand_type_set (union i386_operand_type *x, unsigned int v) |
40fb9820 | 1569 | { |
0dfbf9d7 | 1570 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1571 | { |
1572 | case 3: | |
0dfbf9d7 | 1573 | x->array[2] = v; |
1a0670f3 | 1574 | /* Fall through. */ |
c6fb90c8 | 1575 | case 2: |
0dfbf9d7 | 1576 | x->array[1] = v; |
1a0670f3 | 1577 | /* Fall through. */ |
c6fb90c8 | 1578 | case 1: |
0dfbf9d7 | 1579 | x->array[0] = v; |
1a0670f3 | 1580 | /* Fall through. */ |
c6fb90c8 L |
1581 | break; |
1582 | default: | |
1583 | abort (); | |
1584 | } | |
bab6aec1 JB |
1585 | |
1586 | x->bitfield.class = ClassNone; | |
75e5731b | 1587 | x->bitfield.instance = InstanceNone; |
c6fb90c8 | 1588 | } |
40fb9820 | 1589 | |
c6fb90c8 | 1590 | static INLINE int |
0dfbf9d7 L |
1591 | operand_type_equal (const union i386_operand_type *x, |
1592 | const union i386_operand_type *y) | |
c6fb90c8 | 1593 | { |
0dfbf9d7 | 1594 | switch (ARRAY_SIZE(x->array)) |
c6fb90c8 L |
1595 | { |
1596 | case 3: | |
0dfbf9d7 | 1597 | if (x->array[2] != y->array[2]) |
c6fb90c8 | 1598 | return 0; |
1a0670f3 | 1599 | /* Fall through. */ |
c6fb90c8 | 1600 | case 2: |
0dfbf9d7 | 1601 | if (x->array[1] != y->array[1]) |
c6fb90c8 | 1602 | return 0; |
1a0670f3 | 1603 | /* Fall through. */ |
c6fb90c8 | 1604 | case 1: |
0dfbf9d7 | 1605 | return x->array[0] == y->array[0]; |
c6fb90c8 L |
1606 | break; |
1607 | default: | |
1608 | abort (); | |
1609 | } | |
1610 | } | |
40fb9820 | 1611 | |
0dfbf9d7 L |
1612 | static INLINE int |
1613 | cpu_flags_all_zero (const union i386_cpu_flags *x) | |
1614 | { | |
1615 | switch (ARRAY_SIZE(x->array)) | |
1616 | { | |
53467f57 IT |
1617 | case 4: |
1618 | if (x->array[3]) | |
1619 | return 0; | |
1620 | /* Fall through. */ | |
0dfbf9d7 L |
1621 | case 3: |
1622 | if (x->array[2]) | |
1623 | return 0; | |
1a0670f3 | 1624 | /* Fall through. */ |
0dfbf9d7 L |
1625 | case 2: |
1626 | if (x->array[1]) | |
1627 | return 0; | |
1a0670f3 | 1628 | /* Fall through. */ |
0dfbf9d7 L |
1629 | case 1: |
1630 | return !x->array[0]; | |
1631 | default: | |
1632 | abort (); | |
1633 | } | |
1634 | } | |
1635 | ||
0dfbf9d7 L |
1636 | static INLINE int |
1637 | cpu_flags_equal (const union i386_cpu_flags *x, | |
1638 | const union i386_cpu_flags *y) | |
1639 | { | |
1640 | switch (ARRAY_SIZE(x->array)) | |
1641 | { | |
53467f57 IT |
1642 | case 4: |
1643 | if (x->array[3] != y->array[3]) | |
1644 | return 0; | |
1645 | /* Fall through. */ | |
0dfbf9d7 L |
1646 | case 3: |
1647 | if (x->array[2] != y->array[2]) | |
1648 | return 0; | |
1a0670f3 | 1649 | /* Fall through. */ |
0dfbf9d7 L |
1650 | case 2: |
1651 | if (x->array[1] != y->array[1]) | |
1652 | return 0; | |
1a0670f3 | 1653 | /* Fall through. */ |
0dfbf9d7 L |
1654 | case 1: |
1655 | return x->array[0] == y->array[0]; | |
1656 | break; | |
1657 | default: | |
1658 | abort (); | |
1659 | } | |
1660 | } | |
c6fb90c8 L |
1661 | |
1662 | static INLINE int | |
1663 | cpu_flags_check_cpu64 (i386_cpu_flags f) | |
1664 | { | |
1665 | return !((flag_code == CODE_64BIT && f.bitfield.cpuno64) | |
1666 | || (flag_code != CODE_64BIT && f.bitfield.cpu64)); | |
40fb9820 L |
1667 | } |
1668 | ||
c6fb90c8 L |
1669 | static INLINE i386_cpu_flags |
1670 | cpu_flags_and (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1671 | { |
c6fb90c8 L |
1672 | switch (ARRAY_SIZE (x.array)) |
1673 | { | |
53467f57 IT |
1674 | case 4: |
1675 | x.array [3] &= y.array [3]; | |
1676 | /* Fall through. */ | |
c6fb90c8 L |
1677 | case 3: |
1678 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1679 | /* Fall through. */ |
c6fb90c8 L |
1680 | case 2: |
1681 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1682 | /* Fall through. */ |
c6fb90c8 L |
1683 | case 1: |
1684 | x.array [0] &= y.array [0]; | |
1685 | break; | |
1686 | default: | |
1687 | abort (); | |
1688 | } | |
1689 | return x; | |
1690 | } | |
40fb9820 | 1691 | |
c6fb90c8 L |
1692 | static INLINE i386_cpu_flags |
1693 | cpu_flags_or (i386_cpu_flags x, i386_cpu_flags y) | |
40fb9820 | 1694 | { |
c6fb90c8 | 1695 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1696 | { |
53467f57 IT |
1697 | case 4: |
1698 | x.array [3] |= y.array [3]; | |
1699 | /* Fall through. */ | |
c6fb90c8 L |
1700 | case 3: |
1701 | x.array [2] |= y.array [2]; | |
1a0670f3 | 1702 | /* Fall through. */ |
c6fb90c8 L |
1703 | case 2: |
1704 | x.array [1] |= y.array [1]; | |
1a0670f3 | 1705 | /* Fall through. */ |
c6fb90c8 L |
1706 | case 1: |
1707 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1708 | break; |
1709 | default: | |
1710 | abort (); | |
1711 | } | |
40fb9820 L |
1712 | return x; |
1713 | } | |
1714 | ||
309d3373 JB |
1715 | static INLINE i386_cpu_flags |
1716 | cpu_flags_and_not (i386_cpu_flags x, i386_cpu_flags y) | |
1717 | { | |
1718 | switch (ARRAY_SIZE (x.array)) | |
1719 | { | |
53467f57 IT |
1720 | case 4: |
1721 | x.array [3] &= ~y.array [3]; | |
1722 | /* Fall through. */ | |
309d3373 JB |
1723 | case 3: |
1724 | x.array [2] &= ~y.array [2]; | |
1a0670f3 | 1725 | /* Fall through. */ |
309d3373 JB |
1726 | case 2: |
1727 | x.array [1] &= ~y.array [1]; | |
1a0670f3 | 1728 | /* Fall through. */ |
309d3373 JB |
1729 | case 1: |
1730 | x.array [0] &= ~y.array [0]; | |
1731 | break; | |
1732 | default: | |
1733 | abort (); | |
1734 | } | |
1735 | return x; | |
1736 | } | |
1737 | ||
6c0946d0 JB |
1738 | static const i386_cpu_flags avx512 = CPU_ANY_AVX512F_FLAGS; |
1739 | ||
c0f3af97 L |
1740 | #define CPU_FLAGS_ARCH_MATCH 0x1 |
1741 | #define CPU_FLAGS_64BIT_MATCH 0x2 | |
1742 | ||
c0f3af97 | 1743 | #define CPU_FLAGS_PERFECT_MATCH \ |
db12e14e | 1744 | (CPU_FLAGS_ARCH_MATCH | CPU_FLAGS_64BIT_MATCH) |
c0f3af97 L |
1745 | |
1746 | /* Return CPU flags match bits. */ | |
3629bb00 | 1747 | |
40fb9820 | 1748 | static int |
d3ce72d0 | 1749 | cpu_flags_match (const insn_template *t) |
40fb9820 | 1750 | { |
c0f3af97 L |
1751 | i386_cpu_flags x = t->cpu_flags; |
1752 | int match = cpu_flags_check_cpu64 (x) ? CPU_FLAGS_64BIT_MATCH : 0; | |
40fb9820 L |
1753 | |
1754 | x.bitfield.cpu64 = 0; | |
1755 | x.bitfield.cpuno64 = 0; | |
1756 | ||
0dfbf9d7 | 1757 | if (cpu_flags_all_zero (&x)) |
c0f3af97 L |
1758 | { |
1759 | /* This instruction is available on all archs. */ | |
db12e14e | 1760 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1761 | } |
3629bb00 L |
1762 | else |
1763 | { | |
c0f3af97 | 1764 | /* This instruction is available only on some archs. */ |
3629bb00 L |
1765 | i386_cpu_flags cpu = cpu_arch_flags; |
1766 | ||
ab592e75 JB |
1767 | /* AVX512VL is no standalone feature - match it and then strip it. */ |
1768 | if (x.bitfield.cpuavx512vl && !cpu.bitfield.cpuavx512vl) | |
1769 | return match; | |
1770 | x.bitfield.cpuavx512vl = 0; | |
1771 | ||
22c36940 JB |
1772 | /* AVX and AVX2 present at the same time express an operand size |
1773 | dependency - strip AVX2 for the purposes here. The operand size | |
1774 | dependent check occurs in check_vecOperands(). */ | |
1775 | if (x.bitfield.cpuavx && x.bitfield.cpuavx2) | |
1776 | x.bitfield.cpuavx2 = 0; | |
1777 | ||
3629bb00 | 1778 | cpu = cpu_flags_and (x, cpu); |
c0f3af97 L |
1779 | if (!cpu_flags_all_zero (&cpu)) |
1780 | { | |
57392598 | 1781 | if (x.bitfield.cpuavx) |
a5ff0eb2 | 1782 | { |
929f69fa | 1783 | /* We need to check a few extra flags with AVX. */ |
b9d49817 | 1784 | if (cpu.bitfield.cpuavx |
40d231b4 JB |
1785 | && (!t->opcode_modifier.sse2avx |
1786 | || (sse2avx && !i.prefix[DATA_PREFIX])) | |
b9d49817 | 1787 | && (!x.bitfield.cpuaes || cpu.bitfield.cpuaes) |
929f69fa | 1788 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) |
b9d49817 JB |
1789 | && (!x.bitfield.cpupclmul || cpu.bitfield.cpupclmul)) |
1790 | match |= CPU_FLAGS_ARCH_MATCH; | |
a5ff0eb2 | 1791 | } |
929f69fa JB |
1792 | else if (x.bitfield.cpuavx512f) |
1793 | { | |
1794 | /* We need to check a few extra flags with AVX512F. */ | |
1795 | if (cpu.bitfield.cpuavx512f | |
1796 | && (!x.bitfield.cpugfni || cpu.bitfield.cpugfni) | |
1797 | && (!x.bitfield.cpuvaes || cpu.bitfield.cpuvaes) | |
1798 | && (!x.bitfield.cpuvpclmulqdq || cpu.bitfield.cpuvpclmulqdq)) | |
1799 | match |= CPU_FLAGS_ARCH_MATCH; | |
1800 | } | |
a5ff0eb2 | 1801 | else |
db12e14e | 1802 | match |= CPU_FLAGS_ARCH_MATCH; |
c0f3af97 | 1803 | } |
3629bb00 | 1804 | } |
c0f3af97 | 1805 | return match; |
40fb9820 L |
1806 | } |
1807 | ||
c6fb90c8 L |
1808 | static INLINE i386_operand_type |
1809 | operand_type_and (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1810 | { |
bab6aec1 JB |
1811 | if (x.bitfield.class != y.bitfield.class) |
1812 | x.bitfield.class = ClassNone; | |
75e5731b JB |
1813 | if (x.bitfield.instance != y.bitfield.instance) |
1814 | x.bitfield.instance = InstanceNone; | |
bab6aec1 | 1815 | |
c6fb90c8 L |
1816 | switch (ARRAY_SIZE (x.array)) |
1817 | { | |
1818 | case 3: | |
1819 | x.array [2] &= y.array [2]; | |
1a0670f3 | 1820 | /* Fall through. */ |
c6fb90c8 L |
1821 | case 2: |
1822 | x.array [1] &= y.array [1]; | |
1a0670f3 | 1823 | /* Fall through. */ |
c6fb90c8 L |
1824 | case 1: |
1825 | x.array [0] &= y.array [0]; | |
1826 | break; | |
1827 | default: | |
1828 | abort (); | |
1829 | } | |
1830 | return x; | |
40fb9820 L |
1831 | } |
1832 | ||
73053c1f JB |
1833 | static INLINE i386_operand_type |
1834 | operand_type_and_not (i386_operand_type x, i386_operand_type y) | |
1835 | { | |
bab6aec1 | 1836 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 1837 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 1838 | |
73053c1f JB |
1839 | switch (ARRAY_SIZE (x.array)) |
1840 | { | |
1841 | case 3: | |
1842 | x.array [2] &= ~y.array [2]; | |
1843 | /* Fall through. */ | |
1844 | case 2: | |
1845 | x.array [1] &= ~y.array [1]; | |
1846 | /* Fall through. */ | |
1847 | case 1: | |
1848 | x.array [0] &= ~y.array [0]; | |
1849 | break; | |
1850 | default: | |
1851 | abort (); | |
1852 | } | |
1853 | return x; | |
1854 | } | |
1855 | ||
c6fb90c8 L |
1856 | static INLINE i386_operand_type |
1857 | operand_type_or (i386_operand_type x, i386_operand_type y) | |
40fb9820 | 1858 | { |
bab6aec1 JB |
1859 | gas_assert (x.bitfield.class == ClassNone || |
1860 | y.bitfield.class == ClassNone || | |
1861 | x.bitfield.class == y.bitfield.class); | |
75e5731b JB |
1862 | gas_assert (x.bitfield.instance == InstanceNone || |
1863 | y.bitfield.instance == InstanceNone || | |
1864 | x.bitfield.instance == y.bitfield.instance); | |
bab6aec1 | 1865 | |
c6fb90c8 | 1866 | switch (ARRAY_SIZE (x.array)) |
40fb9820 | 1867 | { |
c6fb90c8 L |
1868 | case 3: |
1869 | x.array [2] |= y.array [2]; | |
1a0670f3 | 1870 | /* Fall through. */ |
c6fb90c8 L |
1871 | case 2: |
1872 | x.array [1] |= y.array [1]; | |
1a0670f3 | 1873 | /* Fall through. */ |
c6fb90c8 L |
1874 | case 1: |
1875 | x.array [0] |= y.array [0]; | |
40fb9820 L |
1876 | break; |
1877 | default: | |
1878 | abort (); | |
1879 | } | |
c6fb90c8 L |
1880 | return x; |
1881 | } | |
40fb9820 | 1882 | |
c6fb90c8 L |
1883 | static INLINE i386_operand_type |
1884 | operand_type_xor (i386_operand_type x, i386_operand_type y) | |
1885 | { | |
bab6aec1 | 1886 | gas_assert (y.bitfield.class == ClassNone); |
75e5731b | 1887 | gas_assert (y.bitfield.instance == InstanceNone); |
bab6aec1 | 1888 | |
c6fb90c8 L |
1889 | switch (ARRAY_SIZE (x.array)) |
1890 | { | |
1891 | case 3: | |
1892 | x.array [2] ^= y.array [2]; | |
1a0670f3 | 1893 | /* Fall through. */ |
c6fb90c8 L |
1894 | case 2: |
1895 | x.array [1] ^= y.array [1]; | |
1a0670f3 | 1896 | /* Fall through. */ |
c6fb90c8 L |
1897 | case 1: |
1898 | x.array [0] ^= y.array [0]; | |
1899 | break; | |
1900 | default: | |
1901 | abort (); | |
1902 | } | |
40fb9820 L |
1903 | return x; |
1904 | } | |
1905 | ||
40fb9820 | 1906 | static const i386_operand_type disp16_32 = OPERAND_TYPE_DISP16_32; |
bab6aec1 JB |
1907 | static const i386_operand_type anydisp = OPERAND_TYPE_ANYDISP; |
1908 | static const i386_operand_type anyimm = OPERAND_TYPE_ANYIMM; | |
40fb9820 L |
1909 | static const i386_operand_type regxmm = OPERAND_TYPE_REGXMM; |
1910 | static const i386_operand_type imm8 = OPERAND_TYPE_IMM8; | |
1911 | static const i386_operand_type imm8s = OPERAND_TYPE_IMM8S; | |
1912 | static const i386_operand_type imm16 = OPERAND_TYPE_IMM16; | |
1913 | static const i386_operand_type imm32 = OPERAND_TYPE_IMM32; | |
1914 | static const i386_operand_type imm32s = OPERAND_TYPE_IMM32S; | |
1915 | static const i386_operand_type imm64 = OPERAND_TYPE_IMM64; | |
1916 | static const i386_operand_type imm16_32 = OPERAND_TYPE_IMM16_32; | |
1917 | static const i386_operand_type imm16_32s = OPERAND_TYPE_IMM16_32S; | |
1918 | static const i386_operand_type imm16_32_32s = OPERAND_TYPE_IMM16_32_32S; | |
1919 | ||
1920 | enum operand_type | |
1921 | { | |
1922 | reg, | |
40fb9820 L |
1923 | imm, |
1924 | disp, | |
1925 | anymem | |
1926 | }; | |
1927 | ||
c6fb90c8 | 1928 | static INLINE int |
40fb9820 L |
1929 | operand_type_check (i386_operand_type t, enum operand_type c) |
1930 | { | |
1931 | switch (c) | |
1932 | { | |
1933 | case reg: | |
bab6aec1 | 1934 | return t.bitfield.class == Reg; |
40fb9820 | 1935 | |
40fb9820 L |
1936 | case imm: |
1937 | return (t.bitfield.imm8 | |
1938 | || t.bitfield.imm8s | |
1939 | || t.bitfield.imm16 | |
1940 | || t.bitfield.imm32 | |
1941 | || t.bitfield.imm32s | |
1942 | || t.bitfield.imm64); | |
1943 | ||
1944 | case disp: | |
1945 | return (t.bitfield.disp8 | |
1946 | || t.bitfield.disp16 | |
1947 | || t.bitfield.disp32 | |
40fb9820 L |
1948 | || t.bitfield.disp64); |
1949 | ||
1950 | case anymem: | |
1951 | return (t.bitfield.disp8 | |
1952 | || t.bitfield.disp16 | |
1953 | || t.bitfield.disp32 | |
40fb9820 L |
1954 | || t.bitfield.disp64 |
1955 | || t.bitfield.baseindex); | |
1956 | ||
1957 | default: | |
1958 | abort (); | |
1959 | } | |
2cfe26b6 AM |
1960 | |
1961 | return 0; | |
40fb9820 L |
1962 | } |
1963 | ||
7a54636a L |
1964 | /* Return 1 if there is no conflict in 8bit/16bit/32bit/64bit/80bit size |
1965 | between operand GIVEN and opeand WANTED for instruction template T. */ | |
5c07affc L |
1966 | |
1967 | static INLINE int | |
7a54636a L |
1968 | match_operand_size (const insn_template *t, unsigned int wanted, |
1969 | unsigned int given) | |
5c07affc | 1970 | { |
3ac21baa JB |
1971 | return !((i.types[given].bitfield.byte |
1972 | && !t->operand_types[wanted].bitfield.byte) | |
1973 | || (i.types[given].bitfield.word | |
1974 | && !t->operand_types[wanted].bitfield.word) | |
1975 | || (i.types[given].bitfield.dword | |
1976 | && !t->operand_types[wanted].bitfield.dword) | |
1977 | || (i.types[given].bitfield.qword | |
1978 | && !t->operand_types[wanted].bitfield.qword) | |
1979 | || (i.types[given].bitfield.tbyte | |
1980 | && !t->operand_types[wanted].bitfield.tbyte)); | |
5c07affc L |
1981 | } |
1982 | ||
dd40ce22 L |
1983 | /* Return 1 if there is no conflict in SIMD register between operand |
1984 | GIVEN and opeand WANTED for instruction template T. */ | |
1b54b8d7 JB |
1985 | |
1986 | static INLINE int | |
dd40ce22 L |
1987 | match_simd_size (const insn_template *t, unsigned int wanted, |
1988 | unsigned int given) | |
1b54b8d7 | 1989 | { |
3ac21baa JB |
1990 | return !((i.types[given].bitfield.xmmword |
1991 | && !t->operand_types[wanted].bitfield.xmmword) | |
1992 | || (i.types[given].bitfield.ymmword | |
1993 | && !t->operand_types[wanted].bitfield.ymmword) | |
1994 | || (i.types[given].bitfield.zmmword | |
260cd341 LC |
1995 | && !t->operand_types[wanted].bitfield.zmmword) |
1996 | || (i.types[given].bitfield.tmmword | |
1997 | && !t->operand_types[wanted].bitfield.tmmword)); | |
1b54b8d7 JB |
1998 | } |
1999 | ||
7a54636a L |
2000 | /* Return 1 if there is no conflict in any size between operand GIVEN |
2001 | and opeand WANTED for instruction template T. */ | |
5c07affc L |
2002 | |
2003 | static INLINE int | |
dd40ce22 L |
2004 | match_mem_size (const insn_template *t, unsigned int wanted, |
2005 | unsigned int given) | |
5c07affc | 2006 | { |
7a54636a | 2007 | return (match_operand_size (t, wanted, given) |
3ac21baa | 2008 | && !((i.types[given].bitfield.unspecified |
5273a3cd | 2009 | && !i.broadcast.type |
a5748e0d | 2010 | && !i.broadcast.bytes |
3ac21baa JB |
2011 | && !t->operand_types[wanted].bitfield.unspecified) |
2012 | || (i.types[given].bitfield.fword | |
2013 | && !t->operand_types[wanted].bitfield.fword) | |
1b54b8d7 JB |
2014 | /* For scalar opcode templates to allow register and memory |
2015 | operands at the same time, some special casing is needed | |
d6793fa1 JB |
2016 | here. Also for v{,p}broadcast*, {,v}pmov{s,z}*, and |
2017 | down-conversion vpmov*. */ | |
3528c362 | 2018 | || ((t->operand_types[wanted].bitfield.class == RegSIMD |
bc49bfd8 JB |
2019 | && t->operand_types[wanted].bitfield.byte |
2020 | + t->operand_types[wanted].bitfield.word | |
2021 | + t->operand_types[wanted].bitfield.dword | |
2022 | + t->operand_types[wanted].bitfield.qword | |
2023 | > !!t->opcode_modifier.broadcast) | |
3ac21baa JB |
2024 | ? (i.types[given].bitfield.xmmword |
2025 | || i.types[given].bitfield.ymmword | |
2026 | || i.types[given].bitfield.zmmword) | |
2027 | : !match_simd_size(t, wanted, given)))); | |
5c07affc L |
2028 | } |
2029 | ||
3ac21baa JB |
2030 | /* Return value has MATCH_STRAIGHT set if there is no size conflict on any |
2031 | operands for instruction template T, and it has MATCH_REVERSE set if there | |
2032 | is no size conflict on any operands for the template with operands reversed | |
2033 | (and the template allows for reversing in the first place). */ | |
5c07affc | 2034 | |
3ac21baa JB |
2035 | #define MATCH_STRAIGHT 1 |
2036 | #define MATCH_REVERSE 2 | |
2037 | ||
2038 | static INLINE unsigned int | |
d3ce72d0 | 2039 | operand_size_match (const insn_template *t) |
5c07affc | 2040 | { |
3ac21baa | 2041 | unsigned int j, match = MATCH_STRAIGHT; |
5c07affc | 2042 | |
0cfa3eb3 | 2043 | /* Don't check non-absolute jump instructions. */ |
5c07affc | 2044 | if (t->opcode_modifier.jump |
0cfa3eb3 | 2045 | && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
5c07affc L |
2046 | return match; |
2047 | ||
2048 | /* Check memory and accumulator operand size. */ | |
2049 | for (j = 0; j < i.operands; j++) | |
2050 | { | |
3528c362 JB |
2051 | if (i.types[j].bitfield.class != Reg |
2052 | && i.types[j].bitfield.class != RegSIMD | |
601e8564 | 2053 | && t->opcode_modifier.anysize) |
5c07affc L |
2054 | continue; |
2055 | ||
bab6aec1 | 2056 | if (t->operand_types[j].bitfield.class == Reg |
7a54636a | 2057 | && !match_operand_size (t, j, j)) |
5c07affc L |
2058 | { |
2059 | match = 0; | |
2060 | break; | |
2061 | } | |
2062 | ||
3528c362 | 2063 | if (t->operand_types[j].bitfield.class == RegSIMD |
3ac21baa | 2064 | && !match_simd_size (t, j, j)) |
1b54b8d7 JB |
2065 | { |
2066 | match = 0; | |
2067 | break; | |
2068 | } | |
2069 | ||
75e5731b | 2070 | if (t->operand_types[j].bitfield.instance == Accum |
7a54636a | 2071 | && (!match_operand_size (t, j, j) || !match_simd_size (t, j, j))) |
1b54b8d7 JB |
2072 | { |
2073 | match = 0; | |
2074 | break; | |
2075 | } | |
2076 | ||
c48dadc9 | 2077 | if ((i.flags[j] & Operand_Mem) && !match_mem_size (t, j, j)) |
5c07affc L |
2078 | { |
2079 | match = 0; | |
2080 | break; | |
2081 | } | |
2082 | } | |
2083 | ||
3ac21baa | 2084 | if (!t->opcode_modifier.d) |
7b94647a | 2085 | return match; |
5c07affc L |
2086 | |
2087 | /* Check reverse. */ | |
8bd915b7 JB |
2088 | gas_assert ((i.operands >= 2 && i.operands <= 3) |
2089 | || t->opcode_modifier.vexsources); | |
5c07affc | 2090 | |
f5eb1d70 | 2091 | for (j = 0; j < i.operands; j++) |
5c07affc | 2092 | { |
f5eb1d70 JB |
2093 | unsigned int given = i.operands - j - 1; |
2094 | ||
8bd915b7 JB |
2095 | /* For 4- and 5-operand insns VEX.W controls just the first two |
2096 | register operands. */ | |
2097 | if (t->opcode_modifier.vexsources) | |
2098 | given = j < 2 ? 1 - j : j; | |
2099 | ||
bab6aec1 | 2100 | if (t->operand_types[j].bitfield.class == Reg |
f5eb1d70 | 2101 | && !match_operand_size (t, j, given)) |
7b94647a | 2102 | return match; |
5c07affc | 2103 | |
3528c362 | 2104 | if (t->operand_types[j].bitfield.class == RegSIMD |
f5eb1d70 | 2105 | && !match_simd_size (t, j, given)) |
7b94647a | 2106 | return match; |
dbbc8b7e | 2107 | |
75e5731b | 2108 | if (t->operand_types[j].bitfield.instance == Accum |
f5eb1d70 JB |
2109 | && (!match_operand_size (t, j, given) |
2110 | || !match_simd_size (t, j, given))) | |
7b94647a | 2111 | return match; |
dbbc8b7e | 2112 | |
f5eb1d70 | 2113 | if ((i.flags[given] & Operand_Mem) && !match_mem_size (t, j, given)) |
7b94647a | 2114 | return match; |
5c07affc L |
2115 | } |
2116 | ||
3ac21baa | 2117 | return match | MATCH_REVERSE; |
5c07affc L |
2118 | } |
2119 | ||
c6fb90c8 | 2120 | static INLINE int |
40fb9820 L |
2121 | operand_type_match (i386_operand_type overlap, |
2122 | i386_operand_type given) | |
2123 | { | |
2124 | i386_operand_type temp = overlap; | |
2125 | ||
7d5e4556 | 2126 | temp.bitfield.unspecified = 0; |
5c07affc L |
2127 | temp.bitfield.byte = 0; |
2128 | temp.bitfield.word = 0; | |
2129 | temp.bitfield.dword = 0; | |
2130 | temp.bitfield.fword = 0; | |
2131 | temp.bitfield.qword = 0; | |
2132 | temp.bitfield.tbyte = 0; | |
2133 | temp.bitfield.xmmword = 0; | |
c0f3af97 | 2134 | temp.bitfield.ymmword = 0; |
43234a1e | 2135 | temp.bitfield.zmmword = 0; |
260cd341 | 2136 | temp.bitfield.tmmword = 0; |
0dfbf9d7 | 2137 | if (operand_type_all_zero (&temp)) |
891edac4 | 2138 | goto mismatch; |
40fb9820 | 2139 | |
6f2f06be | 2140 | if (given.bitfield.baseindex == overlap.bitfield.baseindex) |
891edac4 L |
2141 | return 1; |
2142 | ||
dc1e8a47 | 2143 | mismatch: |
a65babc9 | 2144 | i.error = operand_type_mismatch; |
891edac4 | 2145 | return 0; |
40fb9820 L |
2146 | } |
2147 | ||
7d5e4556 | 2148 | /* If given types g0 and g1 are registers they must be of the same type |
10c17abd | 2149 | unless the expected operand type register overlap is null. |
5de4d9ef | 2150 | Some Intel syntax memory operand size checking also happens here. */ |
40fb9820 | 2151 | |
c6fb90c8 | 2152 | static INLINE int |
dc821c5f | 2153 | operand_type_register_match (i386_operand_type g0, |
40fb9820 | 2154 | i386_operand_type t0, |
40fb9820 L |
2155 | i386_operand_type g1, |
2156 | i386_operand_type t1) | |
2157 | { | |
bab6aec1 | 2158 | if (g0.bitfield.class != Reg |
3528c362 | 2159 | && g0.bitfield.class != RegSIMD |
10c17abd JB |
2160 | && (!operand_type_check (g0, anymem) |
2161 | || g0.bitfield.unspecified | |
5de4d9ef JB |
2162 | || (t0.bitfield.class != Reg |
2163 | && t0.bitfield.class != RegSIMD))) | |
40fb9820 L |
2164 | return 1; |
2165 | ||
bab6aec1 | 2166 | if (g1.bitfield.class != Reg |
3528c362 | 2167 | && g1.bitfield.class != RegSIMD |
10c17abd JB |
2168 | && (!operand_type_check (g1, anymem) |
2169 | || g1.bitfield.unspecified | |
5de4d9ef JB |
2170 | || (t1.bitfield.class != Reg |
2171 | && t1.bitfield.class != RegSIMD))) | |
40fb9820 L |
2172 | return 1; |
2173 | ||
dc821c5f JB |
2174 | if (g0.bitfield.byte == g1.bitfield.byte |
2175 | && g0.bitfield.word == g1.bitfield.word | |
2176 | && g0.bitfield.dword == g1.bitfield.dword | |
10c17abd JB |
2177 | && g0.bitfield.qword == g1.bitfield.qword |
2178 | && g0.bitfield.xmmword == g1.bitfield.xmmword | |
2179 | && g0.bitfield.ymmword == g1.bitfield.ymmword | |
2180 | && g0.bitfield.zmmword == g1.bitfield.zmmword) | |
40fb9820 L |
2181 | return 1; |
2182 | ||
c4d09633 JB |
2183 | /* If expectations overlap in no more than a single size, all is fine. */ |
2184 | g0 = operand_type_and (t0, t1); | |
2185 | if (g0.bitfield.byte | |
2186 | + g0.bitfield.word | |
2187 | + g0.bitfield.dword | |
2188 | + g0.bitfield.qword | |
2189 | + g0.bitfield.xmmword | |
2190 | + g0.bitfield.ymmword | |
2191 | + g0.bitfield.zmmword <= 1) | |
891edac4 L |
2192 | return 1; |
2193 | ||
a65babc9 | 2194 | i.error = register_type_mismatch; |
891edac4 L |
2195 | |
2196 | return 0; | |
40fb9820 L |
2197 | } |
2198 | ||
4c692bc7 JB |
2199 | static INLINE unsigned int |
2200 | register_number (const reg_entry *r) | |
2201 | { | |
2202 | unsigned int nr = r->reg_num; | |
2203 | ||
2204 | if (r->reg_flags & RegRex) | |
2205 | nr += 8; | |
2206 | ||
200cbe0f L |
2207 | if (r->reg_flags & RegVRex) |
2208 | nr += 16; | |
2209 | ||
4c692bc7 JB |
2210 | return nr; |
2211 | } | |
2212 | ||
252b5132 | 2213 | static INLINE unsigned int |
40fb9820 | 2214 | mode_from_disp_size (i386_operand_type t) |
252b5132 | 2215 | { |
b5014f7a | 2216 | if (t.bitfield.disp8) |
40fb9820 L |
2217 | return 1; |
2218 | else if (t.bitfield.disp16 | |
a775efc8 | 2219 | || t.bitfield.disp32) |
40fb9820 L |
2220 | return 2; |
2221 | else | |
2222 | return 0; | |
252b5132 RH |
2223 | } |
2224 | ||
2225 | static INLINE int | |
65879393 | 2226 | fits_in_signed_byte (addressT num) |
252b5132 | 2227 | { |
65879393 | 2228 | return num + 0x80 <= 0xff; |
47926f60 | 2229 | } |
252b5132 RH |
2230 | |
2231 | static INLINE int | |
65879393 | 2232 | fits_in_unsigned_byte (addressT num) |
252b5132 | 2233 | { |
65879393 | 2234 | return num <= 0xff; |
47926f60 | 2235 | } |
252b5132 RH |
2236 | |
2237 | static INLINE int | |
65879393 | 2238 | fits_in_unsigned_word (addressT num) |
252b5132 | 2239 | { |
65879393 | 2240 | return num <= 0xffff; |
47926f60 | 2241 | } |
252b5132 RH |
2242 | |
2243 | static INLINE int | |
65879393 | 2244 | fits_in_signed_word (addressT num) |
252b5132 | 2245 | { |
65879393 | 2246 | return num + 0x8000 <= 0xffff; |
47926f60 | 2247 | } |
2a962e6d | 2248 | |
3e73aa7c | 2249 | static INLINE int |
65879393 | 2250 | fits_in_signed_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2251 | { |
2252 | #ifndef BFD64 | |
2253 | return 1; | |
2254 | #else | |
65879393 | 2255 | return num + 0x80000000 <= 0xffffffff; |
3e73aa7c JH |
2256 | #endif |
2257 | } /* fits_in_signed_long() */ | |
2a962e6d | 2258 | |
3e73aa7c | 2259 | static INLINE int |
65879393 | 2260 | fits_in_unsigned_long (addressT num ATTRIBUTE_UNUSED) |
3e73aa7c JH |
2261 | { |
2262 | #ifndef BFD64 | |
2263 | return 1; | |
2264 | #else | |
65879393 | 2265 | return num <= 0xffffffff; |
3e73aa7c JH |
2266 | #endif |
2267 | } /* fits_in_unsigned_long() */ | |
252b5132 | 2268 | |
a442cac5 JB |
2269 | static INLINE valueT extend_to_32bit_address (addressT num) |
2270 | { | |
2271 | #ifdef BFD64 | |
2272 | if (fits_in_unsigned_long(num)) | |
2273 | return (num ^ ((addressT) 1 << 31)) - ((addressT) 1 << 31); | |
2274 | ||
2275 | if (!fits_in_signed_long (num)) | |
2276 | return num & 0xffffffff; | |
2277 | #endif | |
2278 | ||
2279 | return num; | |
2280 | } | |
2281 | ||
43234a1e | 2282 | static INLINE int |
b5014f7a | 2283 | fits_in_disp8 (offsetT num) |
43234a1e L |
2284 | { |
2285 | int shift = i.memshift; | |
2286 | unsigned int mask; | |
2287 | ||
2288 | if (shift == -1) | |
2289 | abort (); | |
2290 | ||
2291 | mask = (1 << shift) - 1; | |
2292 | ||
2293 | /* Return 0 if NUM isn't properly aligned. */ | |
2294 | if ((num & mask)) | |
2295 | return 0; | |
2296 | ||
2297 | /* Check if NUM will fit in 8bit after shift. */ | |
2298 | return fits_in_signed_byte (num >> shift); | |
2299 | } | |
2300 | ||
a683cc34 SP |
2301 | static INLINE int |
2302 | fits_in_imm4 (offsetT num) | |
2303 | { | |
2304 | return (num & 0xf) == num; | |
2305 | } | |
2306 | ||
40fb9820 | 2307 | static i386_operand_type |
e3bb37b5 | 2308 | smallest_imm_type (offsetT num) |
252b5132 | 2309 | { |
40fb9820 | 2310 | i386_operand_type t; |
7ab9ffdd | 2311 | |
0dfbf9d7 | 2312 | operand_type_set (&t, 0); |
40fb9820 L |
2313 | t.bitfield.imm64 = 1; |
2314 | ||
2315 | if (cpu_arch_tune != PROCESSOR_I486 && num == 1) | |
e413e4e9 AM |
2316 | { |
2317 | /* This code is disabled on the 486 because all the Imm1 forms | |
2318 | in the opcode table are slower on the i486. They're the | |
2319 | versions with the implicitly specified single-position | |
2320 | displacement, which has another syntax if you really want to | |
2321 | use that form. */ | |
40fb9820 L |
2322 | t.bitfield.imm1 = 1; |
2323 | t.bitfield.imm8 = 1; | |
2324 | t.bitfield.imm8s = 1; | |
2325 | t.bitfield.imm16 = 1; | |
2326 | t.bitfield.imm32 = 1; | |
2327 | t.bitfield.imm32s = 1; | |
2328 | } | |
2329 | else if (fits_in_signed_byte (num)) | |
2330 | { | |
2331 | t.bitfield.imm8 = 1; | |
2332 | t.bitfield.imm8s = 1; | |
2333 | t.bitfield.imm16 = 1; | |
2334 | t.bitfield.imm32 = 1; | |
2335 | t.bitfield.imm32s = 1; | |
2336 | } | |
2337 | else if (fits_in_unsigned_byte (num)) | |
2338 | { | |
2339 | t.bitfield.imm8 = 1; | |
2340 | t.bitfield.imm16 = 1; | |
2341 | t.bitfield.imm32 = 1; | |
2342 | t.bitfield.imm32s = 1; | |
2343 | } | |
2344 | else if (fits_in_signed_word (num) || fits_in_unsigned_word (num)) | |
2345 | { | |
2346 | t.bitfield.imm16 = 1; | |
2347 | t.bitfield.imm32 = 1; | |
2348 | t.bitfield.imm32s = 1; | |
2349 | } | |
2350 | else if (fits_in_signed_long (num)) | |
2351 | { | |
2352 | t.bitfield.imm32 = 1; | |
2353 | t.bitfield.imm32s = 1; | |
2354 | } | |
2355 | else if (fits_in_unsigned_long (num)) | |
2356 | t.bitfield.imm32 = 1; | |
2357 | ||
2358 | return t; | |
47926f60 | 2359 | } |
252b5132 | 2360 | |
847f7ad4 | 2361 | static offsetT |
e3bb37b5 | 2362 | offset_in_range (offsetT val, int size) |
847f7ad4 | 2363 | { |
508866be | 2364 | addressT mask; |
ba2adb93 | 2365 | |
847f7ad4 AM |
2366 | switch (size) |
2367 | { | |
508866be L |
2368 | case 1: mask = ((addressT) 1 << 8) - 1; break; |
2369 | case 2: mask = ((addressT) 1 << 16) - 1; break; | |
3e73aa7c | 2370 | #ifdef BFD64 |
64965897 | 2371 | case 4: mask = ((addressT) 1 << 32) - 1; break; |
3e73aa7c | 2372 | #endif |
64965897 | 2373 | case sizeof (val): return val; |
47926f60 | 2374 | default: abort (); |
847f7ad4 AM |
2375 | } |
2376 | ||
4fe51f7d | 2377 | if ((val & ~mask) != 0 && (-val & ~mask) != 0) |
f493c217 AM |
2378 | as_warn (_("0x%" PRIx64 " shortened to 0x%" PRIx64), |
2379 | (uint64_t) val, (uint64_t) (val & mask)); | |
847f7ad4 | 2380 | |
847f7ad4 AM |
2381 | return val & mask; |
2382 | } | |
2383 | ||
c32fa91d L |
2384 | enum PREFIX_GROUP |
2385 | { | |
2386 | PREFIX_EXIST = 0, | |
2387 | PREFIX_LOCK, | |
2388 | PREFIX_REP, | |
04ef582a | 2389 | PREFIX_DS, |
c32fa91d L |
2390 | PREFIX_OTHER |
2391 | }; | |
2392 | ||
2393 | /* Returns | |
2394 | a. PREFIX_EXIST if attempting to add a prefix where one from the | |
2395 | same class already exists. | |
2396 | b. PREFIX_LOCK if lock prefix is added. | |
2397 | c. PREFIX_REP if rep/repne prefix is added. | |
04ef582a L |
2398 | d. PREFIX_DS if ds prefix is added. |
2399 | e. PREFIX_OTHER if other prefix is added. | |
c32fa91d L |
2400 | */ |
2401 | ||
2402 | static enum PREFIX_GROUP | |
e3bb37b5 | 2403 | add_prefix (unsigned int prefix) |
252b5132 | 2404 | { |
c32fa91d | 2405 | enum PREFIX_GROUP ret = PREFIX_OTHER; |
b1905489 | 2406 | unsigned int q; |
252b5132 | 2407 | |
29b0f896 AM |
2408 | if (prefix >= REX_OPCODE && prefix < REX_OPCODE + 16 |
2409 | && flag_code == CODE_64BIT) | |
b1905489 | 2410 | { |
161a04f6 | 2411 | if ((i.prefix[REX_PREFIX] & prefix & REX_W) |
44846f29 JB |
2412 | || (i.prefix[REX_PREFIX] & prefix & REX_R) |
2413 | || (i.prefix[REX_PREFIX] & prefix & REX_X) | |
2414 | || (i.prefix[REX_PREFIX] & prefix & REX_B)) | |
c32fa91d | 2415 | ret = PREFIX_EXIST; |
b1905489 JB |
2416 | q = REX_PREFIX; |
2417 | } | |
3e73aa7c | 2418 | else |
b1905489 JB |
2419 | { |
2420 | switch (prefix) | |
2421 | { | |
2422 | default: | |
2423 | abort (); | |
2424 | ||
b1905489 | 2425 | case DS_PREFIX_OPCODE: |
04ef582a L |
2426 | ret = PREFIX_DS; |
2427 | /* Fall through. */ | |
2428 | case CS_PREFIX_OPCODE: | |
b1905489 JB |
2429 | case ES_PREFIX_OPCODE: |
2430 | case FS_PREFIX_OPCODE: | |
2431 | case GS_PREFIX_OPCODE: | |
2432 | case SS_PREFIX_OPCODE: | |
2433 | q = SEG_PREFIX; | |
2434 | break; | |
2435 | ||
2436 | case REPNE_PREFIX_OPCODE: | |
2437 | case REPE_PREFIX_OPCODE: | |
c32fa91d L |
2438 | q = REP_PREFIX; |
2439 | ret = PREFIX_REP; | |
2440 | break; | |
2441 | ||
b1905489 | 2442 | case LOCK_PREFIX_OPCODE: |
c32fa91d L |
2443 | q = LOCK_PREFIX; |
2444 | ret = PREFIX_LOCK; | |
b1905489 JB |
2445 | break; |
2446 | ||
2447 | case FWAIT_OPCODE: | |
2448 | q = WAIT_PREFIX; | |
2449 | break; | |
2450 | ||
2451 | case ADDR_PREFIX_OPCODE: | |
2452 | q = ADDR_PREFIX; | |
2453 | break; | |
2454 | ||
2455 | case DATA_PREFIX_OPCODE: | |
2456 | q = DATA_PREFIX; | |
2457 | break; | |
2458 | } | |
2459 | if (i.prefix[q] != 0) | |
c32fa91d | 2460 | ret = PREFIX_EXIST; |
b1905489 | 2461 | } |
252b5132 | 2462 | |
b1905489 | 2463 | if (ret) |
252b5132 | 2464 | { |
b1905489 JB |
2465 | if (!i.prefix[q]) |
2466 | ++i.prefixes; | |
2467 | i.prefix[q] |= prefix; | |
252b5132 | 2468 | } |
b1905489 JB |
2469 | else |
2470 | as_bad (_("same type of prefix used twice")); | |
252b5132 | 2471 | |
252b5132 RH |
2472 | return ret; |
2473 | } | |
2474 | ||
2475 | static void | |
78f12dd3 | 2476 | update_code_flag (int value, int check) |
eecb386c | 2477 | { |
78f12dd3 L |
2478 | PRINTF_LIKE ((*as_error)); |
2479 | ||
1e9cc1c2 | 2480 | flag_code = (enum flag_code) value; |
40fb9820 L |
2481 | if (flag_code == CODE_64BIT) |
2482 | { | |
2483 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2484 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
40fb9820 L |
2485 | } |
2486 | else | |
2487 | { | |
2488 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2489 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
40fb9820 L |
2490 | } |
2491 | if (value == CODE_64BIT && !cpu_arch_flags.bitfield.cpulm ) | |
3e73aa7c | 2492 | { |
78f12dd3 L |
2493 | if (check) |
2494 | as_error = as_fatal; | |
2495 | else | |
2496 | as_error = as_bad; | |
2497 | (*as_error) (_("64bit mode not supported on `%s'."), | |
2498 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2499 | } |
40fb9820 | 2500 | if (value == CODE_32BIT && !cpu_arch_flags.bitfield.cpui386) |
3e73aa7c | 2501 | { |
78f12dd3 L |
2502 | if (check) |
2503 | as_error = as_fatal; | |
2504 | else | |
2505 | as_error = as_bad; | |
2506 | (*as_error) (_("32bit mode not supported on `%s'."), | |
2507 | cpu_arch_name ? cpu_arch_name : default_arch); | |
3e73aa7c | 2508 | } |
eecb386c AM |
2509 | stackop_size = '\0'; |
2510 | } | |
2511 | ||
78f12dd3 L |
2512 | static void |
2513 | set_code_flag (int value) | |
2514 | { | |
2515 | update_code_flag (value, 0); | |
2516 | } | |
2517 | ||
eecb386c | 2518 | static void |
e3bb37b5 | 2519 | set_16bit_gcc_code_flag (int new_code_flag) |
252b5132 | 2520 | { |
1e9cc1c2 | 2521 | flag_code = (enum flag_code) new_code_flag; |
40fb9820 L |
2522 | if (flag_code != CODE_16BIT) |
2523 | abort (); | |
2524 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2525 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
9306ca4a | 2526 | stackop_size = LONG_MNEM_SUFFIX; |
252b5132 RH |
2527 | } |
2528 | ||
2529 | static void | |
e3bb37b5 | 2530 | set_intel_syntax (int syntax_flag) |
252b5132 RH |
2531 | { |
2532 | /* Find out if register prefixing is specified. */ | |
2533 | int ask_naked_reg = 0; | |
2534 | ||
2535 | SKIP_WHITESPACE (); | |
29b0f896 | 2536 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
252b5132 | 2537 | { |
d02603dc NC |
2538 | char *string; |
2539 | int e = get_symbol_name (&string); | |
252b5132 | 2540 | |
47926f60 | 2541 | if (strcmp (string, "prefix") == 0) |
252b5132 | 2542 | ask_naked_reg = 1; |
47926f60 | 2543 | else if (strcmp (string, "noprefix") == 0) |
252b5132 RH |
2544 | ask_naked_reg = -1; |
2545 | else | |
d0b47220 | 2546 | as_bad (_("bad argument to syntax directive.")); |
d02603dc | 2547 | (void) restore_line_pointer (e); |
252b5132 RH |
2548 | } |
2549 | demand_empty_rest_of_line (); | |
c3332e24 | 2550 | |
252b5132 RH |
2551 | intel_syntax = syntax_flag; |
2552 | ||
2553 | if (ask_naked_reg == 0) | |
f86103b7 AM |
2554 | allow_naked_reg = (intel_syntax |
2555 | && (bfd_get_symbol_leading_char (stdoutput) != '\0')); | |
252b5132 RH |
2556 | else |
2557 | allow_naked_reg = (ask_naked_reg < 0); | |
9306ca4a | 2558 | |
ee86248c | 2559 | expr_set_rank (O_full_ptr, syntax_flag ? 10 : 0); |
7ab9ffdd | 2560 | |
e4a3b5a4 | 2561 | identifier_chars['%'] = intel_syntax && allow_naked_reg ? '%' : 0; |
9306ca4a | 2562 | identifier_chars['$'] = intel_syntax ? '$' : 0; |
e4a3b5a4 | 2563 | register_prefix = allow_naked_reg ? "" : "%"; |
252b5132 RH |
2564 | } |
2565 | ||
1efbbeb4 L |
2566 | static void |
2567 | set_intel_mnemonic (int mnemonic_flag) | |
2568 | { | |
e1d4d893 | 2569 | intel_mnemonic = mnemonic_flag; |
1efbbeb4 L |
2570 | } |
2571 | ||
db51cc60 L |
2572 | static void |
2573 | set_allow_index_reg (int flag) | |
2574 | { | |
2575 | allow_index_reg = flag; | |
2576 | } | |
2577 | ||
cb19c032 | 2578 | static void |
7bab8ab5 | 2579 | set_check (int what) |
cb19c032 | 2580 | { |
7bab8ab5 JB |
2581 | enum check_kind *kind; |
2582 | const char *str; | |
2583 | ||
2584 | if (what) | |
2585 | { | |
2586 | kind = &operand_check; | |
2587 | str = "operand"; | |
2588 | } | |
2589 | else | |
2590 | { | |
2591 | kind = &sse_check; | |
2592 | str = "sse"; | |
2593 | } | |
2594 | ||
cb19c032 L |
2595 | SKIP_WHITESPACE (); |
2596 | ||
2597 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) | |
2598 | { | |
d02603dc NC |
2599 | char *string; |
2600 | int e = get_symbol_name (&string); | |
cb19c032 L |
2601 | |
2602 | if (strcmp (string, "none") == 0) | |
7bab8ab5 | 2603 | *kind = check_none; |
cb19c032 | 2604 | else if (strcmp (string, "warning") == 0) |
7bab8ab5 | 2605 | *kind = check_warning; |
cb19c032 | 2606 | else if (strcmp (string, "error") == 0) |
7bab8ab5 | 2607 | *kind = check_error; |
cb19c032 | 2608 | else |
7bab8ab5 | 2609 | as_bad (_("bad argument to %s_check directive."), str); |
d02603dc | 2610 | (void) restore_line_pointer (e); |
cb19c032 L |
2611 | } |
2612 | else | |
7bab8ab5 | 2613 | as_bad (_("missing argument for %s_check directive"), str); |
cb19c032 L |
2614 | |
2615 | demand_empty_rest_of_line (); | |
2616 | } | |
2617 | ||
8a9036a4 L |
2618 | static void |
2619 | check_cpu_arch_compatible (const char *name ATTRIBUTE_UNUSED, | |
1e9cc1c2 | 2620 | i386_cpu_flags new_flag ATTRIBUTE_UNUSED) |
8a9036a4 L |
2621 | { |
2622 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
2623 | static const char *arch; | |
2624 | ||
c085ab00 | 2625 | /* Intel MCU is only supported on ELF. */ |
8a9036a4 L |
2626 | if (!IS_ELF) |
2627 | return; | |
2628 | ||
2629 | if (!arch) | |
2630 | { | |
2631 | /* Use cpu_arch_name if it is set in md_parse_option. Otherwise | |
2632 | use default_arch. */ | |
2633 | arch = cpu_arch_name; | |
2634 | if (!arch) | |
2635 | arch = default_arch; | |
2636 | } | |
2637 | ||
81486035 | 2638 | /* If we are targeting Intel MCU, we must enable it. */ |
648d04db JB |
2639 | if ((get_elf_backend_data (stdoutput)->elf_machine_code == EM_IAMCU) |
2640 | == new_flag.bitfield.cpuiamcu) | |
81486035 L |
2641 | return; |
2642 | ||
8a9036a4 L |
2643 | as_bad (_("`%s' is not supported on `%s'"), name, arch); |
2644 | #endif | |
2645 | } | |
2646 | ||
8180707f JB |
2647 | static void |
2648 | extend_cpu_sub_arch_name (const char *name) | |
2649 | { | |
2650 | if (cpu_sub_arch_name) | |
2651 | cpu_sub_arch_name = reconcat (cpu_sub_arch_name, cpu_sub_arch_name, | |
ae89daec | 2652 | ".", name, (const char *) NULL); |
8180707f | 2653 | else |
ae89daec | 2654 | cpu_sub_arch_name = concat (".", name, (const char *) NULL); |
8180707f JB |
2655 | } |
2656 | ||
e413e4e9 | 2657 | static void |
e3bb37b5 | 2658 | set_cpu_arch (int dummy ATTRIBUTE_UNUSED) |
e413e4e9 | 2659 | { |
f68697e8 JB |
2660 | typedef struct arch_stack_entry |
2661 | { | |
2662 | const struct arch_stack_entry *prev; | |
2663 | const char *name; | |
2664 | char *sub_name; | |
2665 | i386_cpu_flags flags; | |
2666 | i386_cpu_flags isa_flags; | |
2667 | enum processor_type isa; | |
2668 | enum flag_code flag_code; | |
2669 | char stackop_size; | |
2670 | bool no_cond_jump_promotion; | |
2671 | } arch_stack_entry; | |
2672 | static const arch_stack_entry *arch_stack_top; | |
2673 | ||
47926f60 | 2674 | SKIP_WHITESPACE (); |
e413e4e9 | 2675 | |
29b0f896 | 2676 | if (!is_end_of_line[(unsigned char) *input_line_pointer]) |
e413e4e9 | 2677 | { |
3ce2ebcf JB |
2678 | char *s; |
2679 | int e = get_symbol_name (&s); | |
2680 | const char *string = s; | |
2681 | unsigned int j = 0; | |
40fb9820 | 2682 | i386_cpu_flags flags; |
e413e4e9 | 2683 | |
3ce2ebcf JB |
2684 | if (strcmp (string, "default") == 0) |
2685 | { | |
2686 | if (strcmp (default_arch, "iamcu") == 0) | |
2687 | string = default_arch; | |
2688 | else | |
2689 | { | |
2690 | static const i386_cpu_flags cpu_unknown_flags = CPU_UNKNOWN_FLAGS; | |
2691 | ||
2692 | cpu_arch_name = NULL; | |
2693 | free (cpu_sub_arch_name); | |
2694 | cpu_sub_arch_name = NULL; | |
2695 | cpu_arch_flags = cpu_unknown_flags; | |
2696 | if (flag_code == CODE_64BIT) | |
2697 | { | |
2698 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2699 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
2700 | } | |
2701 | else | |
2702 | { | |
2703 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2704 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
2705 | } | |
2706 | cpu_arch_isa = PROCESSOR_UNKNOWN; | |
ae89daec | 2707 | cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
3ce2ebcf JB |
2708 | if (!cpu_arch_tune_set) |
2709 | { | |
2710 | cpu_arch_tune = cpu_arch_isa; | |
2711 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
2712 | } | |
2713 | ||
2714 | j = ARRAY_SIZE (cpu_arch) + 1; | |
2715 | } | |
2716 | } | |
f68697e8 JB |
2717 | else if (strcmp (string, "push") == 0) |
2718 | { | |
2719 | arch_stack_entry *top = XNEW (arch_stack_entry); | |
2720 | ||
2721 | top->name = cpu_arch_name; | |
2722 | if (cpu_sub_arch_name) | |
2723 | top->sub_name = xstrdup (cpu_sub_arch_name); | |
2724 | else | |
2725 | top->sub_name = NULL; | |
2726 | top->flags = cpu_arch_flags; | |
2727 | top->isa = cpu_arch_isa; | |
2728 | top->isa_flags = cpu_arch_isa_flags; | |
2729 | top->flag_code = flag_code; | |
2730 | top->stackop_size = stackop_size; | |
2731 | top->no_cond_jump_promotion = no_cond_jump_promotion; | |
2732 | ||
2733 | top->prev = arch_stack_top; | |
2734 | arch_stack_top = top; | |
2735 | ||
2736 | (void) restore_line_pointer (e); | |
2737 | demand_empty_rest_of_line (); | |
2738 | return; | |
2739 | } | |
2740 | else if (strcmp (string, "pop") == 0) | |
2741 | { | |
2742 | const arch_stack_entry *top = arch_stack_top; | |
2743 | ||
2744 | if (!top) | |
2745 | as_bad (_(".arch stack is empty")); | |
2746 | else if (top->flag_code != flag_code | |
2747 | || top->stackop_size != stackop_size) | |
2748 | { | |
2749 | static const unsigned int bits[] = { | |
2750 | [CODE_16BIT] = 16, | |
2751 | [CODE_32BIT] = 32, | |
2752 | [CODE_64BIT] = 64, | |
2753 | }; | |
2754 | ||
2755 | as_bad (_("this `.arch pop' requires `.code%u%s' to be in effect"), | |
2756 | bits[top->flag_code], | |
2757 | top->stackop_size == LONG_MNEM_SUFFIX ? "gcc" : ""); | |
2758 | } | |
2759 | else | |
2760 | { | |
2761 | arch_stack_top = top->prev; | |
2762 | ||
2763 | cpu_arch_name = top->name; | |
2764 | free (cpu_sub_arch_name); | |
2765 | cpu_sub_arch_name = top->sub_name; | |
2766 | cpu_arch_flags = top->flags; | |
2767 | cpu_arch_isa = top->isa; | |
2768 | cpu_arch_isa_flags = top->isa_flags; | |
2769 | no_cond_jump_promotion = top->no_cond_jump_promotion; | |
2770 | ||
2771 | XDELETE (top); | |
2772 | } | |
2773 | ||
2774 | (void) restore_line_pointer (e); | |
2775 | demand_empty_rest_of_line (); | |
2776 | return; | |
2777 | } | |
3ce2ebcf JB |
2778 | |
2779 | for (; j < ARRAY_SIZE (cpu_arch); j++) | |
e413e4e9 | 2780 | { |
ae89daec JB |
2781 | if (strcmp (string + (*string == '.'), cpu_arch[j].name) == 0 |
2782 | && (*string == '.') == (cpu_arch[j].type == PROCESSOR_NONE)) | |
e413e4e9 | 2783 | { |
5c6af06e JB |
2784 | if (*string != '.') |
2785 | { | |
ae89daec | 2786 | check_cpu_arch_compatible (string, cpu_arch[j].enable); |
648d04db | 2787 | |
91d6fa6a | 2788 | cpu_arch_name = cpu_arch[j].name; |
d92c7521 | 2789 | free (cpu_sub_arch_name); |
5c6af06e | 2790 | cpu_sub_arch_name = NULL; |
ae89daec | 2791 | cpu_arch_flags = cpu_arch[j].enable; |
40fb9820 L |
2792 | if (flag_code == CODE_64BIT) |
2793 | { | |
2794 | cpu_arch_flags.bitfield.cpu64 = 1; | |
2795 | cpu_arch_flags.bitfield.cpuno64 = 0; | |
2796 | } | |
2797 | else | |
2798 | { | |
2799 | cpu_arch_flags.bitfield.cpu64 = 0; | |
2800 | cpu_arch_flags.bitfield.cpuno64 = 1; | |
2801 | } | |
91d6fa6a | 2802 | cpu_arch_isa = cpu_arch[j].type; |
ae89daec | 2803 | cpu_arch_isa_flags = cpu_arch[j].enable; |
ccc9c027 L |
2804 | if (!cpu_arch_tune_set) |
2805 | { | |
2806 | cpu_arch_tune = cpu_arch_isa; | |
2807 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
2808 | } | |
d59a54c2 | 2809 | pre_386_16bit_warned = false; |
5c6af06e JB |
2810 | break; |
2811 | } | |
40fb9820 | 2812 | |
ae89daec JB |
2813 | if (cpu_flags_all_zero (&cpu_arch[j].enable)) |
2814 | continue; | |
2815 | ||
293f5f65 | 2816 | flags = cpu_flags_or (cpu_arch_flags, |
ae89daec | 2817 | cpu_arch[j].enable); |
81486035 | 2818 | |
5b64d091 | 2819 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
5c6af06e | 2820 | { |
ae89daec | 2821 | extend_cpu_sub_arch_name (string + 1); |
40fb9820 | 2822 | cpu_arch_flags = flags; |
a586129e | 2823 | cpu_arch_isa_flags = flags; |
5c6af06e | 2824 | } |
0089dace L |
2825 | else |
2826 | cpu_arch_isa_flags | |
2827 | = cpu_flags_or (cpu_arch_isa_flags, | |
ae89daec | 2828 | cpu_arch[j].enable); |
d02603dc | 2829 | (void) restore_line_pointer (e); |
5c6af06e JB |
2830 | demand_empty_rest_of_line (); |
2831 | return; | |
e413e4e9 AM |
2832 | } |
2833 | } | |
293f5f65 | 2834 | |
ae89daec | 2835 | if (startswith (string, ".no") && j >= ARRAY_SIZE (cpu_arch)) |
293f5f65 | 2836 | { |
33eaf5de | 2837 | /* Disable an ISA extension. */ |
ae89daec JB |
2838 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
2839 | if (cpu_arch[j].type == PROCESSOR_NONE | |
2840 | && strcmp (string + 3, cpu_arch[j].name) == 0) | |
293f5f65 L |
2841 | { |
2842 | flags = cpu_flags_and_not (cpu_arch_flags, | |
ae89daec | 2843 | cpu_arch[j].disable); |
293f5f65 L |
2844 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
2845 | { | |
ae89daec | 2846 | extend_cpu_sub_arch_name (string + 1); |
293f5f65 L |
2847 | cpu_arch_flags = flags; |
2848 | cpu_arch_isa_flags = flags; | |
2849 | } | |
2850 | (void) restore_line_pointer (e); | |
2851 | demand_empty_rest_of_line (); | |
2852 | return; | |
2853 | } | |
293f5f65 L |
2854 | } |
2855 | ||
3ce2ebcf | 2856 | if (j == ARRAY_SIZE (cpu_arch)) |
e413e4e9 AM |
2857 | as_bad (_("no such architecture: `%s'"), string); |
2858 | ||
2859 | *input_line_pointer = e; | |
2860 | } | |
2861 | else | |
2862 | as_bad (_("missing cpu architecture")); | |
2863 | ||
fddf5b5b AM |
2864 | no_cond_jump_promotion = 0; |
2865 | if (*input_line_pointer == ',' | |
29b0f896 | 2866 | && !is_end_of_line[(unsigned char) input_line_pointer[1]]) |
fddf5b5b | 2867 | { |
d02603dc NC |
2868 | char *string; |
2869 | char e; | |
2870 | ||
2871 | ++input_line_pointer; | |
2872 | e = get_symbol_name (&string); | |
fddf5b5b AM |
2873 | |
2874 | if (strcmp (string, "nojumps") == 0) | |
2875 | no_cond_jump_promotion = 1; | |
2876 | else if (strcmp (string, "jumps") == 0) | |
2877 | ; | |
2878 | else | |
2879 | as_bad (_("no such architecture modifier: `%s'"), string); | |
2880 | ||
d02603dc | 2881 | (void) restore_line_pointer (e); |
fddf5b5b AM |
2882 | } |
2883 | ||
e413e4e9 AM |
2884 | demand_empty_rest_of_line (); |
2885 | } | |
2886 | ||
8a9036a4 L |
2887 | enum bfd_architecture |
2888 | i386_arch (void) | |
2889 | { | |
c085ab00 | 2890 | if (cpu_arch_isa == PROCESSOR_IAMCU) |
81486035 L |
2891 | { |
2892 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour | |
2893 | || flag_code == CODE_64BIT) | |
2894 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
2895 | return bfd_arch_iamcu; | |
2896 | } | |
8a9036a4 L |
2897 | else |
2898 | return bfd_arch_i386; | |
2899 | } | |
2900 | ||
b9d79e03 | 2901 | unsigned long |
7016a5d5 | 2902 | i386_mach (void) |
b9d79e03 | 2903 | { |
d34049e8 | 2904 | if (startswith (default_arch, "x86_64")) |
8a9036a4 | 2905 | { |
c085ab00 | 2906 | if (default_arch[6] == '\0') |
8a9036a4 | 2907 | return bfd_mach_x86_64; |
351f65ca L |
2908 | else |
2909 | return bfd_mach_x64_32; | |
8a9036a4 | 2910 | } |
5197d474 L |
2911 | else if (!strcmp (default_arch, "i386") |
2912 | || !strcmp (default_arch, "iamcu")) | |
81486035 L |
2913 | { |
2914 | if (cpu_arch_isa == PROCESSOR_IAMCU) | |
2915 | { | |
2916 | if (OUTPUT_FLAVOR != bfd_target_elf_flavour) | |
2917 | as_fatal (_("Intel MCU is 32bit ELF only")); | |
2918 | return bfd_mach_i386_iamcu; | |
2919 | } | |
2920 | else | |
2921 | return bfd_mach_i386_i386; | |
2922 | } | |
b9d79e03 | 2923 | else |
2b5d6a91 | 2924 | as_fatal (_("unknown architecture")); |
b9d79e03 | 2925 | } |
b9d79e03 | 2926 | \f |
252b5132 | 2927 | void |
7016a5d5 | 2928 | md_begin (void) |
252b5132 | 2929 | { |
86fa6981 L |
2930 | /* Support pseudo prefixes like {disp32}. */ |
2931 | lex_type ['{'] = LEX_BEGIN_NAME; | |
2932 | ||
47926f60 | 2933 | /* Initialize op_hash hash table. */ |
629310ab | 2934 | op_hash = str_htab_create (); |
252b5132 RH |
2935 | |
2936 | { | |
d3ce72d0 | 2937 | const insn_template *optab; |
29b0f896 | 2938 | templates *core_optab; |
252b5132 | 2939 | |
47926f60 KH |
2940 | /* Setup for loop. */ |
2941 | optab = i386_optab; | |
654d6f31 | 2942 | core_optab = notes_alloc (sizeof (*core_optab)); |
252b5132 RH |
2943 | core_optab->start = optab; |
2944 | ||
2945 | while (1) | |
2946 | { | |
2947 | ++optab; | |
2948 | if (optab->name == NULL | |
2949 | || strcmp (optab->name, (optab - 1)->name) != 0) | |
2950 | { | |
2951 | /* different name --> ship out current template list; | |
47926f60 | 2952 | add to hash table; & begin anew. */ |
252b5132 | 2953 | core_optab->end = optab; |
fe0e921f AM |
2954 | if (str_hash_insert (op_hash, (optab - 1)->name, core_optab, 0)) |
2955 | as_fatal (_("duplicate %s"), (optab - 1)->name); | |
2956 | ||
252b5132 RH |
2957 | if (optab->name == NULL) |
2958 | break; | |
654d6f31 | 2959 | core_optab = notes_alloc (sizeof (*core_optab)); |
252b5132 RH |
2960 | core_optab->start = optab; |
2961 | } | |
2962 | } | |
2963 | } | |
2964 | ||
47926f60 | 2965 | /* Initialize reg_hash hash table. */ |
629310ab | 2966 | reg_hash = str_htab_create (); |
252b5132 | 2967 | { |
29b0f896 | 2968 | const reg_entry *regtab; |
c3fe08fa | 2969 | unsigned int regtab_size = i386_regtab_size; |
252b5132 | 2970 | |
c3fe08fa | 2971 | for (regtab = i386_regtab; regtab_size--; regtab++) |
6225c532 | 2972 | { |
6288d05f JB |
2973 | switch (regtab->reg_type.bitfield.class) |
2974 | { | |
2975 | case Reg: | |
34684862 JB |
2976 | if (regtab->reg_type.bitfield.dword) |
2977 | { | |
2978 | if (regtab->reg_type.bitfield.instance == Accum) | |
2979 | reg_eax = regtab; | |
2980 | } | |
2981 | else if (regtab->reg_type.bitfield.tbyte) | |
6288d05f JB |
2982 | { |
2983 | /* There's no point inserting st(<N>) in the hash table, as | |
2984 | parentheses aren't included in register_chars[] anyway. */ | |
2985 | if (regtab->reg_type.bitfield.instance != Accum) | |
2986 | continue; | |
2987 | reg_st0 = regtab; | |
2988 | } | |
2989 | break; | |
2990 | ||
5e042380 JB |
2991 | case SReg: |
2992 | switch (regtab->reg_num) | |
2993 | { | |
2994 | case 0: reg_es = regtab; break; | |
2995 | case 2: reg_ss = regtab; break; | |
2996 | case 3: reg_ds = regtab; break; | |
2997 | } | |
2998 | break; | |
2999 | ||
6288d05f JB |
3000 | case RegMask: |
3001 | if (!regtab->reg_num) | |
3002 | reg_k0 = regtab; | |
3003 | break; | |
3004 | } | |
3005 | ||
6225c532 JB |
3006 | if (str_hash_insert (reg_hash, regtab->reg_name, regtab, 0) != NULL) |
3007 | as_fatal (_("duplicate %s"), regtab->reg_name); | |
6225c532 | 3008 | } |
252b5132 RH |
3009 | } |
3010 | ||
47926f60 | 3011 | /* Fill in lexical tables: mnemonic_chars, operand_chars. */ |
252b5132 | 3012 | { |
29b0f896 AM |
3013 | int c; |
3014 | char *p; | |
252b5132 RH |
3015 | |
3016 | for (c = 0; c < 256; c++) | |
3017 | { | |
014fbcda | 3018 | if (ISDIGIT (c) || ISLOWER (c)) |
252b5132 RH |
3019 | { |
3020 | mnemonic_chars[c] = c; | |
3021 | register_chars[c] = c; | |
3022 | operand_chars[c] = c; | |
3023 | } | |
3882b010 | 3024 | else if (ISUPPER (c)) |
252b5132 | 3025 | { |
3882b010 | 3026 | mnemonic_chars[c] = TOLOWER (c); |
252b5132 RH |
3027 | register_chars[c] = mnemonic_chars[c]; |
3028 | operand_chars[c] = c; | |
3029 | } | |
43234a1e | 3030 | else if (c == '{' || c == '}') |
86fa6981 L |
3031 | { |
3032 | mnemonic_chars[c] = c; | |
3033 | operand_chars[c] = c; | |
3034 | } | |
b3983e5f JB |
3035 | #ifdef SVR4_COMMENT_CHARS |
3036 | else if (c == '\\' && strchr (i386_comment_chars, '/')) | |
3037 | operand_chars[c] = c; | |
3038 | #endif | |
252b5132 | 3039 | |
3882b010 | 3040 | if (ISALPHA (c) || ISDIGIT (c)) |
252b5132 RH |
3041 | identifier_chars[c] = c; |
3042 | else if (c >= 128) | |
3043 | { | |
3044 | identifier_chars[c] = c; | |
3045 | operand_chars[c] = c; | |
3046 | } | |
3047 | } | |
3048 | ||
3049 | #ifdef LEX_AT | |
3050 | identifier_chars['@'] = '@'; | |
32137342 NC |
3051 | #endif |
3052 | #ifdef LEX_QM | |
3053 | identifier_chars['?'] = '?'; | |
3054 | operand_chars['?'] = '?'; | |
252b5132 | 3055 | #endif |
c0f3af97 | 3056 | mnemonic_chars['_'] = '_'; |
791fe849 | 3057 | mnemonic_chars['-'] = '-'; |
0003779b | 3058 | mnemonic_chars['.'] = '.'; |
252b5132 RH |
3059 | identifier_chars['_'] = '_'; |
3060 | identifier_chars['.'] = '.'; | |
3061 | ||
3062 | for (p = operand_special_chars; *p != '\0'; p++) | |
3063 | operand_chars[(unsigned char) *p] = *p; | |
3064 | } | |
3065 | ||
a4447b93 RH |
3066 | if (flag_code == CODE_64BIT) |
3067 | { | |
ca19b261 KT |
3068 | #if defined (OBJ_COFF) && defined (TE_PE) |
3069 | x86_dwarf2_return_column = (OUTPUT_FLAVOR == bfd_target_coff_flavour | |
3070 | ? 32 : 16); | |
3071 | #else | |
a4447b93 | 3072 | x86_dwarf2_return_column = 16; |
ca19b261 | 3073 | #endif |
61ff971f | 3074 | x86_cie_data_alignment = -8; |
a4447b93 RH |
3075 | } |
3076 | else | |
3077 | { | |
3078 | x86_dwarf2_return_column = 8; | |
3079 | x86_cie_data_alignment = -4; | |
3080 | } | |
e379e5f3 L |
3081 | |
3082 | /* NB: FUSED_JCC_PADDING frag must have sufficient room so that it | |
3083 | can be turned into BRANCH_PREFIX frag. */ | |
3084 | if (align_branch_prefix_size > MAX_FUSED_JCC_PADDING_SIZE) | |
3085 | abort (); | |
252b5132 RH |
3086 | } |
3087 | ||
3088 | void | |
e3bb37b5 | 3089 | i386_print_statistics (FILE *file) |
252b5132 | 3090 | { |
629310ab ML |
3091 | htab_print_statistics (file, "i386 opcode", op_hash); |
3092 | htab_print_statistics (file, "i386 register", reg_hash); | |
252b5132 | 3093 | } |
654d6f31 AM |
3094 | |
3095 | void | |
3096 | i386_md_end (void) | |
3097 | { | |
3098 | htab_delete (op_hash); | |
3099 | htab_delete (reg_hash); | |
3100 | } | |
252b5132 | 3101 | \f |
252b5132 RH |
3102 | #ifdef DEBUG386 |
3103 | ||
ce8a8b2f | 3104 | /* Debugging routines for md_assemble. */ |
d3ce72d0 | 3105 | static void pte (insn_template *); |
40fb9820 | 3106 | static void pt (i386_operand_type); |
e3bb37b5 L |
3107 | static void pe (expressionS *); |
3108 | static void ps (symbolS *); | |
252b5132 RH |
3109 | |
3110 | static void | |
2c703856 | 3111 | pi (const char *line, i386_insn *x) |
252b5132 | 3112 | { |
09137c09 | 3113 | unsigned int j; |
252b5132 RH |
3114 | |
3115 | fprintf (stdout, "%s: template ", line); | |
3116 | pte (&x->tm); | |
09f131f2 JH |
3117 | fprintf (stdout, " address: base %s index %s scale %x\n", |
3118 | x->base_reg ? x->base_reg->reg_name : "none", | |
3119 | x->index_reg ? x->index_reg->reg_name : "none", | |
3120 | x->log2_scale_factor); | |
3121 | fprintf (stdout, " modrm: mode %x reg %x reg/mem %x\n", | |
252b5132 | 3122 | x->rm.mode, x->rm.reg, x->rm.regmem); |
09f131f2 JH |
3123 | fprintf (stdout, " sib: base %x index %x scale %x\n", |
3124 | x->sib.base, x->sib.index, x->sib.scale); | |
3125 | fprintf (stdout, " rex: 64bit %x extX %x extY %x extZ %x\n", | |
161a04f6 L |
3126 | (x->rex & REX_W) != 0, |
3127 | (x->rex & REX_R) != 0, | |
3128 | (x->rex & REX_X) != 0, | |
3129 | (x->rex & REX_B) != 0); | |
09137c09 | 3130 | for (j = 0; j < x->operands; j++) |
252b5132 | 3131 | { |
09137c09 SP |
3132 | fprintf (stdout, " #%d: ", j + 1); |
3133 | pt (x->types[j]); | |
252b5132 | 3134 | fprintf (stdout, "\n"); |
bab6aec1 | 3135 | if (x->types[j].bitfield.class == Reg |
3528c362 JB |
3136 | || x->types[j].bitfield.class == RegMMX |
3137 | || x->types[j].bitfield.class == RegSIMD | |
dd6b8a0b | 3138 | || x->types[j].bitfield.class == RegMask |
00cee14f | 3139 | || x->types[j].bitfield.class == SReg |
4a5c67ed JB |
3140 | || x->types[j].bitfield.class == RegCR |
3141 | || x->types[j].bitfield.class == RegDR | |
dd6b8a0b JB |
3142 | || x->types[j].bitfield.class == RegTR |
3143 | || x->types[j].bitfield.class == RegBND) | |
09137c09 SP |
3144 | fprintf (stdout, "%s\n", x->op[j].regs->reg_name); |
3145 | if (operand_type_check (x->types[j], imm)) | |
3146 | pe (x->op[j].imms); | |
3147 | if (operand_type_check (x->types[j], disp)) | |
3148 | pe (x->op[j].disps); | |
252b5132 RH |
3149 | } |
3150 | } | |
3151 | ||
3152 | static void | |
d3ce72d0 | 3153 | pte (insn_template *t) |
252b5132 | 3154 | { |
b933fa4b | 3155 | static const unsigned char opc_pfx[] = { 0, 0x66, 0xf3, 0xf2 }; |
441f6aca | 3156 | static const char *const opc_spc[] = { |
0cc78721 | 3157 | NULL, "0f", "0f38", "0f3a", NULL, "evexmap5", "evexmap6", NULL, |
441f6aca JB |
3158 | "XOP08", "XOP09", "XOP0A", |
3159 | }; | |
09137c09 | 3160 | unsigned int j; |
441f6aca | 3161 | |
252b5132 | 3162 | fprintf (stdout, " %d operands ", t->operands); |
441f6aca JB |
3163 | if (opc_pfx[t->opcode_modifier.opcodeprefix]) |
3164 | fprintf (stdout, "pfx %x ", opc_pfx[t->opcode_modifier.opcodeprefix]); | |
3165 | if (opc_spc[t->opcode_modifier.opcodespace]) | |
3166 | fprintf (stdout, "space %s ", opc_spc[t->opcode_modifier.opcodespace]); | |
47926f60 | 3167 | fprintf (stdout, "opcode %x ", t->base_opcode); |
252b5132 RH |
3168 | if (t->extension_opcode != None) |
3169 | fprintf (stdout, "ext %x ", t->extension_opcode); | |
40fb9820 | 3170 | if (t->opcode_modifier.d) |
252b5132 | 3171 | fprintf (stdout, "D"); |
40fb9820 | 3172 | if (t->opcode_modifier.w) |
252b5132 RH |
3173 | fprintf (stdout, "W"); |
3174 | fprintf (stdout, "\n"); | |
09137c09 | 3175 | for (j = 0; j < t->operands; j++) |
252b5132 | 3176 | { |
09137c09 SP |
3177 | fprintf (stdout, " #%d type ", j + 1); |
3178 | pt (t->operand_types[j]); | |
252b5132 RH |
3179 | fprintf (stdout, "\n"); |
3180 | } | |
3181 | } | |
3182 | ||
3183 | static void | |
e3bb37b5 | 3184 | pe (expressionS *e) |
252b5132 | 3185 | { |
24eab124 | 3186 | fprintf (stdout, " operation %d\n", e->X_op); |
b8281767 AM |
3187 | fprintf (stdout, " add_number %" PRId64 " (%" PRIx64 ")\n", |
3188 | (int64_t) e->X_add_number, (uint64_t) (valueT) e->X_add_number); | |
252b5132 RH |
3189 | if (e->X_add_symbol) |
3190 | { | |
3191 | fprintf (stdout, " add_symbol "); | |
3192 | ps (e->X_add_symbol); | |
3193 | fprintf (stdout, "\n"); | |
3194 | } | |
3195 | if (e->X_op_symbol) | |
3196 | { | |
3197 | fprintf (stdout, " op_symbol "); | |
3198 | ps (e->X_op_symbol); | |
3199 | fprintf (stdout, "\n"); | |
3200 | } | |
3201 | } | |
3202 | ||
3203 | static void | |
e3bb37b5 | 3204 | ps (symbolS *s) |
252b5132 RH |
3205 | { |
3206 | fprintf (stdout, "%s type %s%s", | |
3207 | S_GET_NAME (s), | |
3208 | S_IS_EXTERNAL (s) ? "EXTERNAL " : "", | |
3209 | segment_name (S_GET_SEGMENT (s))); | |
3210 | } | |
3211 | ||
7b81dfbb | 3212 | static struct type_name |
252b5132 | 3213 | { |
40fb9820 L |
3214 | i386_operand_type mask; |
3215 | const char *name; | |
252b5132 | 3216 | } |
7b81dfbb | 3217 | const type_names[] = |
252b5132 | 3218 | { |
40fb9820 L |
3219 | { OPERAND_TYPE_REG8, "r8" }, |
3220 | { OPERAND_TYPE_REG16, "r16" }, | |
3221 | { OPERAND_TYPE_REG32, "r32" }, | |
3222 | { OPERAND_TYPE_REG64, "r64" }, | |
2c703856 JB |
3223 | { OPERAND_TYPE_ACC8, "acc8" }, |
3224 | { OPERAND_TYPE_ACC16, "acc16" }, | |
3225 | { OPERAND_TYPE_ACC32, "acc32" }, | |
3226 | { OPERAND_TYPE_ACC64, "acc64" }, | |
40fb9820 L |
3227 | { OPERAND_TYPE_IMM8, "i8" }, |
3228 | { OPERAND_TYPE_IMM8, "i8s" }, | |
3229 | { OPERAND_TYPE_IMM16, "i16" }, | |
3230 | { OPERAND_TYPE_IMM32, "i32" }, | |
3231 | { OPERAND_TYPE_IMM32S, "i32s" }, | |
3232 | { OPERAND_TYPE_IMM64, "i64" }, | |
3233 | { OPERAND_TYPE_IMM1, "i1" }, | |
3234 | { OPERAND_TYPE_BASEINDEX, "BaseIndex" }, | |
3235 | { OPERAND_TYPE_DISP8, "d8" }, | |
3236 | { OPERAND_TYPE_DISP16, "d16" }, | |
3237 | { OPERAND_TYPE_DISP32, "d32" }, | |
40fb9820 L |
3238 | { OPERAND_TYPE_DISP64, "d64" }, |
3239 | { OPERAND_TYPE_INOUTPORTREG, "InOutPortReg" }, | |
3240 | { OPERAND_TYPE_SHIFTCOUNT, "ShiftCount" }, | |
3241 | { OPERAND_TYPE_CONTROL, "control reg" }, | |
3242 | { OPERAND_TYPE_TEST, "test reg" }, | |
3243 | { OPERAND_TYPE_DEBUG, "debug reg" }, | |
3244 | { OPERAND_TYPE_FLOATREG, "FReg" }, | |
3245 | { OPERAND_TYPE_FLOATACC, "FAcc" }, | |
21df382b | 3246 | { OPERAND_TYPE_SREG, "SReg" }, |
40fb9820 L |
3247 | { OPERAND_TYPE_REGMMX, "rMMX" }, |
3248 | { OPERAND_TYPE_REGXMM, "rXMM" }, | |
0349dc08 | 3249 | { OPERAND_TYPE_REGYMM, "rYMM" }, |
43234a1e | 3250 | { OPERAND_TYPE_REGZMM, "rZMM" }, |
260cd341 | 3251 | { OPERAND_TYPE_REGTMM, "rTMM" }, |
43234a1e | 3252 | { OPERAND_TYPE_REGMASK, "Mask reg" }, |
252b5132 RH |
3253 | }; |
3254 | ||
3255 | static void | |
40fb9820 | 3256 | pt (i386_operand_type t) |
252b5132 | 3257 | { |
40fb9820 | 3258 | unsigned int j; |
c6fb90c8 | 3259 | i386_operand_type a; |
252b5132 | 3260 | |
40fb9820 | 3261 | for (j = 0; j < ARRAY_SIZE (type_names); j++) |
c6fb90c8 L |
3262 | { |
3263 | a = operand_type_and (t, type_names[j].mask); | |
2c703856 | 3264 | if (operand_type_equal (&a, &type_names[j].mask)) |
c6fb90c8 L |
3265 | fprintf (stdout, "%s, ", type_names[j].name); |
3266 | } | |
252b5132 RH |
3267 | fflush (stdout); |
3268 | } | |
3269 | ||
3270 | #endif /* DEBUG386 */ | |
3271 | \f | |
252b5132 | 3272 | static bfd_reloc_code_real_type |
3956db08 | 3273 | reloc (unsigned int size, |
64e74474 AM |
3274 | int pcrel, |
3275 | int sign, | |
3276 | bfd_reloc_code_real_type other) | |
252b5132 | 3277 | { |
47926f60 | 3278 | if (other != NO_RELOC) |
3956db08 | 3279 | { |
91d6fa6a | 3280 | reloc_howto_type *rel; |
3956db08 JB |
3281 | |
3282 | if (size == 8) | |
3283 | switch (other) | |
3284 | { | |
64e74474 AM |
3285 | case BFD_RELOC_X86_64_GOT32: |
3286 | return BFD_RELOC_X86_64_GOT64; | |
3287 | break; | |
553d1284 L |
3288 | case BFD_RELOC_X86_64_GOTPLT64: |
3289 | return BFD_RELOC_X86_64_GOTPLT64; | |
3290 | break; | |
64e74474 AM |
3291 | case BFD_RELOC_X86_64_PLTOFF64: |
3292 | return BFD_RELOC_X86_64_PLTOFF64; | |
3293 | break; | |
3294 | case BFD_RELOC_X86_64_GOTPC32: | |
3295 | other = BFD_RELOC_X86_64_GOTPC64; | |
3296 | break; | |
3297 | case BFD_RELOC_X86_64_GOTPCREL: | |
3298 | other = BFD_RELOC_X86_64_GOTPCREL64; | |
3299 | break; | |
3300 | case BFD_RELOC_X86_64_TPOFF32: | |
3301 | other = BFD_RELOC_X86_64_TPOFF64; | |
3302 | break; | |
3303 | case BFD_RELOC_X86_64_DTPOFF32: | |
3304 | other = BFD_RELOC_X86_64_DTPOFF64; | |
3305 | break; | |
3306 | default: | |
3307 | break; | |
3956db08 | 3308 | } |
e05278af | 3309 | |
8ce3d284 | 3310 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
3311 | if (other == BFD_RELOC_SIZE32) |
3312 | { | |
3313 | if (size == 8) | |
1ab668bf | 3314 | other = BFD_RELOC_SIZE64; |
8fd4256d | 3315 | if (pcrel) |
1ab668bf AM |
3316 | { |
3317 | as_bad (_("there are no pc-relative size relocations")); | |
3318 | return NO_RELOC; | |
3319 | } | |
8fd4256d | 3320 | } |
8ce3d284 | 3321 | #endif |
8fd4256d | 3322 | |
e05278af | 3323 | /* Sign-checking 4-byte relocations in 16-/32-bit code is pointless. */ |
f2d8a97c | 3324 | if (size == 4 && (flag_code != CODE_64BIT || disallow_64bit_reloc)) |
e05278af JB |
3325 | sign = -1; |
3326 | ||
91d6fa6a NC |
3327 | rel = bfd_reloc_type_lookup (stdoutput, other); |
3328 | if (!rel) | |
3956db08 | 3329 | as_bad (_("unknown relocation (%u)"), other); |
91d6fa6a | 3330 | else if (size != bfd_get_reloc_size (rel)) |
3956db08 | 3331 | as_bad (_("%u-byte relocation cannot be applied to %u-byte field"), |
91d6fa6a | 3332 | bfd_get_reloc_size (rel), |
3956db08 | 3333 | size); |
91d6fa6a | 3334 | else if (pcrel && !rel->pc_relative) |
3956db08 | 3335 | as_bad (_("non-pc-relative relocation for pc-relative field")); |
91d6fa6a | 3336 | else if ((rel->complain_on_overflow == complain_overflow_signed |
3956db08 | 3337 | && !sign) |
91d6fa6a | 3338 | || (rel->complain_on_overflow == complain_overflow_unsigned |
64e74474 | 3339 | && sign > 0)) |
3956db08 JB |
3340 | as_bad (_("relocated field and relocation type differ in signedness")); |
3341 | else | |
3342 | return other; | |
3343 | return NO_RELOC; | |
3344 | } | |
252b5132 RH |
3345 | |
3346 | if (pcrel) | |
3347 | { | |
3e73aa7c | 3348 | if (!sign) |
3956db08 | 3349 | as_bad (_("there are no unsigned pc-relative relocations")); |
252b5132 RH |
3350 | switch (size) |
3351 | { | |
3352 | case 1: return BFD_RELOC_8_PCREL; | |
3353 | case 2: return BFD_RELOC_16_PCREL; | |
d258b828 | 3354 | case 4: return BFD_RELOC_32_PCREL; |
d6ab8113 | 3355 | case 8: return BFD_RELOC_64_PCREL; |
252b5132 | 3356 | } |
3956db08 | 3357 | as_bad (_("cannot do %u byte pc-relative relocation"), size); |
252b5132 RH |
3358 | } |
3359 | else | |
3360 | { | |
3956db08 | 3361 | if (sign > 0) |
e5cb08ac | 3362 | switch (size) |
3e73aa7c JH |
3363 | { |
3364 | case 4: return BFD_RELOC_X86_64_32S; | |
3365 | } | |
3366 | else | |
3367 | switch (size) | |
3368 | { | |
3369 | case 1: return BFD_RELOC_8; | |
3370 | case 2: return BFD_RELOC_16; | |
3371 | case 4: return BFD_RELOC_32; | |
3372 | case 8: return BFD_RELOC_64; | |
3373 | } | |
3956db08 JB |
3374 | as_bad (_("cannot do %s %u byte relocation"), |
3375 | sign > 0 ? "signed" : "unsigned", size); | |
252b5132 RH |
3376 | } |
3377 | ||
0cc9e1d3 | 3378 | return NO_RELOC; |
252b5132 RH |
3379 | } |
3380 | ||
47926f60 KH |
3381 | /* Here we decide which fixups can be adjusted to make them relative to |
3382 | the beginning of the section instead of the symbol. Basically we need | |
3383 | to make sure that the dynamic relocations are done correctly, so in | |
3384 | some cases we force the original symbol to be used. */ | |
3385 | ||
252b5132 | 3386 | int |
e3bb37b5 | 3387 | tc_i386_fix_adjustable (fixS *fixP ATTRIBUTE_UNUSED) |
252b5132 | 3388 | { |
6d249963 | 3389 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 3390 | if (!IS_ELF) |
31312f95 AM |
3391 | return 1; |
3392 | ||
a161fe53 AM |
3393 | /* Don't adjust pc-relative references to merge sections in 64-bit |
3394 | mode. */ | |
3395 | if (use_rela_relocations | |
3396 | && (S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_MERGE) != 0 | |
3397 | && fixP->fx_pcrel) | |
252b5132 | 3398 | return 0; |
31312f95 | 3399 | |
8d01d9a9 AJ |
3400 | /* The x86_64 GOTPCREL are represented as 32bit PCrel relocations |
3401 | and changed later by validate_fix. */ | |
3402 | if (GOT_symbol && fixP->fx_subsy == GOT_symbol | |
3403 | && fixP->fx_r_type == BFD_RELOC_32_PCREL) | |
3404 | return 0; | |
3405 | ||
8fd4256d L |
3406 | /* Adjust_reloc_syms doesn't know about the GOT. Need to keep symbol |
3407 | for size relocations. */ | |
3408 | if (fixP->fx_r_type == BFD_RELOC_SIZE32 | |
3409 | || fixP->fx_r_type == BFD_RELOC_SIZE64 | |
3410 | || fixP->fx_r_type == BFD_RELOC_386_GOTOFF | |
252b5132 | 3411 | || fixP->fx_r_type == BFD_RELOC_386_GOT32 |
02a86693 | 3412 | || fixP->fx_r_type == BFD_RELOC_386_GOT32X |
13ae64f3 JJ |
3413 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GD |
3414 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDM | |
3415 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LDO_32 | |
3416 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE_32 | |
37e55690 JJ |
3417 | || fixP->fx_r_type == BFD_RELOC_386_TLS_IE |
3418 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTIE | |
13ae64f3 JJ |
3419 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE_32 |
3420 | || fixP->fx_r_type == BFD_RELOC_386_TLS_LE | |
67a4f2b7 AO |
3421 | || fixP->fx_r_type == BFD_RELOC_386_TLS_GOTDESC |
3422 | || fixP->fx_r_type == BFD_RELOC_386_TLS_DESC_CALL | |
3e73aa7c | 3423 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOT32 |
80b3ee89 | 3424 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCREL |
56ceb5b5 L |
3425 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX |
3426 | || fixP->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX | |
bffbf940 JJ |
3427 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSGD |
3428 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSLD | |
3429 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF32 | |
d6ab8113 | 3430 | || fixP->fx_r_type == BFD_RELOC_X86_64_DTPOFF64 |
bffbf940 JJ |
3431 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTTPOFF |
3432 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF32 | |
d6ab8113 JB |
3433 | || fixP->fx_r_type == BFD_RELOC_X86_64_TPOFF64 |
3434 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTOFF64 | |
67a4f2b7 AO |
3435 | || fixP->fx_r_type == BFD_RELOC_X86_64_GOTPC32_TLSDESC |
3436 | || fixP->fx_r_type == BFD_RELOC_X86_64_TLSDESC_CALL | |
252b5132 RH |
3437 | || fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT |
3438 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
3439 | return 0; | |
31312f95 | 3440 | #endif |
252b5132 RH |
3441 | return 1; |
3442 | } | |
252b5132 | 3443 | |
a9aabc23 JB |
3444 | static INLINE bool |
3445 | want_disp32 (const insn_template *t) | |
3446 | { | |
3447 | return flag_code != CODE_64BIT | |
3448 | || i.prefix[ADDR_PREFIX] | |
3449 | || (t->base_opcode == 0x8d | |
3450 | && t->opcode_modifier.opcodespace == SPACE_BASE | |
fe134c65 JB |
3451 | && (!i.types[1].bitfield.qword |
3452 | || t->opcode_modifier.size == SIZE32)); | |
a9aabc23 JB |
3453 | } |
3454 | ||
b4cac588 | 3455 | static int |
e3bb37b5 | 3456 | intel_float_operand (const char *mnemonic) |
252b5132 | 3457 | { |
9306ca4a JB |
3458 | /* Note that the value returned is meaningful only for opcodes with (memory) |
3459 | operands, hence the code here is free to improperly handle opcodes that | |
3460 | have no operands (for better performance and smaller code). */ | |
3461 | ||
3462 | if (mnemonic[0] != 'f') | |
3463 | return 0; /* non-math */ | |
3464 | ||
3465 | switch (mnemonic[1]) | |
3466 | { | |
3467 | /* fclex, fdecstp, fdisi, femms, feni, fincstp, finit, fsetpm, and | |
3468 | the fs segment override prefix not currently handled because no | |
3469 | call path can make opcodes without operands get here */ | |
3470 | case 'i': | |
3471 | return 2 /* integer op */; | |
3472 | case 'l': | |
3473 | if (mnemonic[2] == 'd' && (mnemonic[3] == 'c' || mnemonic[3] == 'e')) | |
3474 | return 3; /* fldcw/fldenv */ | |
3475 | break; | |
3476 | case 'n': | |
3477 | if (mnemonic[2] != 'o' /* fnop */) | |
3478 | return 3; /* non-waiting control op */ | |
3479 | break; | |
3480 | case 'r': | |
3481 | if (mnemonic[2] == 's') | |
3482 | return 3; /* frstor/frstpm */ | |
3483 | break; | |
3484 | case 's': | |
3485 | if (mnemonic[2] == 'a') | |
3486 | return 3; /* fsave */ | |
3487 | if (mnemonic[2] == 't') | |
3488 | { | |
3489 | switch (mnemonic[3]) | |
3490 | { | |
3491 | case 'c': /* fstcw */ | |
3492 | case 'd': /* fstdw */ | |
3493 | case 'e': /* fstenv */ | |
3494 | case 's': /* fsts[gw] */ | |
3495 | return 3; | |
3496 | } | |
3497 | } | |
3498 | break; | |
3499 | case 'x': | |
3500 | if (mnemonic[2] == 'r' || mnemonic[2] == 's') | |
3501 | return 0; /* fxsave/fxrstor are not really math ops */ | |
3502 | break; | |
3503 | } | |
252b5132 | 3504 | |
9306ca4a | 3505 | return 1; |
252b5132 RH |
3506 | } |
3507 | ||
9a182d04 JB |
3508 | static INLINE void |
3509 | install_template (const insn_template *t) | |
3510 | { | |
3511 | unsigned int l; | |
3512 | ||
3513 | i.tm = *t; | |
3514 | ||
3515 | /* Note that for pseudo prefixes this produces a length of 1. But for them | |
3516 | the length isn't interesting at all. */ | |
3517 | for (l = 1; l < 4; ++l) | |
3518 | if (!(t->base_opcode >> (8 * l))) | |
3519 | break; | |
3520 | ||
3521 | i.opcode_length = l; | |
3522 | } | |
3523 | ||
c0f3af97 L |
3524 | /* Build the VEX prefix. */ |
3525 | ||
3526 | static void | |
d3ce72d0 | 3527 | build_vex_prefix (const insn_template *t) |
c0f3af97 L |
3528 | { |
3529 | unsigned int register_specifier; | |
c0f3af97 | 3530 | unsigned int vector_length; |
03751133 | 3531 | unsigned int w; |
c0f3af97 L |
3532 | |
3533 | /* Check register specifier. */ | |
3534 | if (i.vex.register_specifier) | |
43234a1e L |
3535 | { |
3536 | register_specifier = | |
3537 | ~register_number (i.vex.register_specifier) & 0xf; | |
3538 | gas_assert ((i.vex.register_specifier->reg_flags & RegVRex) == 0); | |
3539 | } | |
c0f3af97 L |
3540 | else |
3541 | register_specifier = 0xf; | |
3542 | ||
79f0fa25 L |
3543 | /* Use 2-byte VEX prefix by swapping destination and source operand |
3544 | if there are more than 1 register operand. */ | |
3545 | if (i.reg_operands > 1 | |
3546 | && i.vec_encoding != vex_encoding_vex3 | |
86fa6981 | 3547 | && i.dir_encoding == dir_encoding_default |
fa99fab2 | 3548 | && i.operands == i.reg_operands |
dbbc8b7e | 3549 | && operand_type_equal (&i.types[0], &i.types[i.operands - 1]) |
441f6aca | 3550 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
dbbc8b7e | 3551 | && (i.tm.opcode_modifier.load || i.tm.opcode_modifier.d) |
fa99fab2 L |
3552 | && i.rex == REX_B) |
3553 | { | |
3554 | unsigned int xchg = i.operands - 1; | |
3555 | union i386_op temp_op; | |
3556 | i386_operand_type temp_type; | |
3557 | ||
3558 | temp_type = i.types[xchg]; | |
3559 | i.types[xchg] = i.types[0]; | |
3560 | i.types[0] = temp_type; | |
3561 | temp_op = i.op[xchg]; | |
3562 | i.op[xchg] = i.op[0]; | |
3563 | i.op[0] = temp_op; | |
3564 | ||
9c2799c2 | 3565 | gas_assert (i.rm.mode == 3); |
fa99fab2 L |
3566 | |
3567 | i.rex = REX_R; | |
3568 | xchg = i.rm.regmem; | |
3569 | i.rm.regmem = i.rm.reg; | |
3570 | i.rm.reg = xchg; | |
3571 | ||
dbbc8b7e JB |
3572 | if (i.tm.opcode_modifier.d) |
3573 | i.tm.base_opcode ^= (i.tm.base_opcode & 0xee) != 0x6e | |
2c735193 | 3574 | ? Opcode_ExtD : Opcode_SIMD_IntD; |
dbbc8b7e | 3575 | else /* Use the next insn. */ |
9a182d04 | 3576 | install_template (&t[1]); |
fa99fab2 L |
3577 | } |
3578 | ||
79dec6b7 JB |
3579 | /* Use 2-byte VEX prefix by swapping commutative source operands if there |
3580 | are no memory operands and at least 3 register ones. */ | |
3581 | if (i.reg_operands >= 3 | |
3582 | && i.vec_encoding != vex_encoding_vex3 | |
3583 | && i.reg_operands == i.operands - i.imm_operands | |
3584 | && i.tm.opcode_modifier.vex | |
3585 | && i.tm.opcode_modifier.commutative | |
3586 | && (i.tm.opcode_modifier.sse2avx || optimize > 1) | |
3587 | && i.rex == REX_B | |
3588 | && i.vex.register_specifier | |
3589 | && !(i.vex.register_specifier->reg_flags & RegRex)) | |
3590 | { | |
3591 | unsigned int xchg = i.operands - i.reg_operands; | |
3592 | union i386_op temp_op; | |
3593 | i386_operand_type temp_type; | |
3594 | ||
441f6aca | 3595 | gas_assert (i.tm.opcode_modifier.opcodespace == SPACE_0F); |
79dec6b7 JB |
3596 | gas_assert (!i.tm.opcode_modifier.sae); |
3597 | gas_assert (operand_type_equal (&i.types[i.operands - 2], | |
3598 | &i.types[i.operands - 3])); | |
3599 | gas_assert (i.rm.mode == 3); | |
3600 | ||
3601 | temp_type = i.types[xchg]; | |
3602 | i.types[xchg] = i.types[xchg + 1]; | |
3603 | i.types[xchg + 1] = temp_type; | |
3604 | temp_op = i.op[xchg]; | |
3605 | i.op[xchg] = i.op[xchg + 1]; | |
3606 | i.op[xchg + 1] = temp_op; | |
3607 | ||
3608 | i.rex = 0; | |
3609 | xchg = i.rm.regmem | 8; | |
3610 | i.rm.regmem = ~register_specifier & 0xf; | |
3611 | gas_assert (!(i.rm.regmem & 8)); | |
3612 | i.vex.register_specifier += xchg - i.rm.regmem; | |
3613 | register_specifier = ~xchg & 0xf; | |
3614 | } | |
3615 | ||
539f890d L |
3616 | if (i.tm.opcode_modifier.vex == VEXScalar) |
3617 | vector_length = avxscalar; | |
10c17abd JB |
3618 | else if (i.tm.opcode_modifier.vex == VEX256) |
3619 | vector_length = 1; | |
539f890d | 3620 | else |
10c17abd | 3621 | { |
56522fc5 | 3622 | unsigned int op; |
10c17abd | 3623 | |
c7213af9 L |
3624 | /* Determine vector length from the last multi-length vector |
3625 | operand. */ | |
10c17abd | 3626 | vector_length = 0; |
56522fc5 | 3627 | for (op = t->operands; op--;) |
10c17abd JB |
3628 | if (t->operand_types[op].bitfield.xmmword |
3629 | && t->operand_types[op].bitfield.ymmword | |
3630 | && i.types[op].bitfield.ymmword) | |
3631 | { | |
3632 | vector_length = 1; | |
3633 | break; | |
3634 | } | |
3635 | } | |
c0f3af97 | 3636 | |
03751133 L |
3637 | /* Check the REX.W bit and VEXW. */ |
3638 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3639 | w = (vexwig == vexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3640 | else if (i.tm.opcode_modifier.vexw) | |
3641 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3642 | else | |
931d03b7 | 3643 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : vexwig == vexw1) ? 1 : 0; |
03751133 | 3644 | |
c0f3af97 | 3645 | /* Use 2-byte VEX prefix if possible. */ |
03751133 L |
3646 | if (w == 0 |
3647 | && i.vec_encoding != vex_encoding_vex3 | |
441f6aca | 3648 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
c0f3af97 L |
3649 | && (i.rex & (REX_W | REX_X | REX_B)) == 0) |
3650 | { | |
3651 | /* 2-byte VEX prefix. */ | |
3652 | unsigned int r; | |
3653 | ||
3654 | i.vex.length = 2; | |
3655 | i.vex.bytes[0] = 0xc5; | |
3656 | ||
3657 | /* Check the REX.R bit. */ | |
3658 | r = (i.rex & REX_R) ? 0 : 1; | |
3659 | i.vex.bytes[1] = (r << 7 | |
3660 | | register_specifier << 3 | |
3661 | | vector_length << 2 | |
35648716 | 3662 | | i.tm.opcode_modifier.opcodeprefix); |
c0f3af97 L |
3663 | } |
3664 | else | |
3665 | { | |
3666 | /* 3-byte VEX prefix. */ | |
f88c9eb0 | 3667 | i.vex.length = 3; |
f88c9eb0 | 3668 | |
441f6aca | 3669 | switch (i.tm.opcode_modifier.opcodespace) |
5dd85c99 | 3670 | { |
441f6aca JB |
3671 | case SPACE_0F: |
3672 | case SPACE_0F38: | |
3673 | case SPACE_0F3A: | |
80de6e00 | 3674 | i.vex.bytes[0] = 0xc4; |
7f399153 | 3675 | break; |
441f6aca JB |
3676 | case SPACE_XOP08: |
3677 | case SPACE_XOP09: | |
3678 | case SPACE_XOP0A: | |
f88c9eb0 | 3679 | i.vex.bytes[0] = 0x8f; |
7f399153 L |
3680 | break; |
3681 | default: | |
3682 | abort (); | |
f88c9eb0 | 3683 | } |
c0f3af97 | 3684 | |
c0f3af97 L |
3685 | /* The high 3 bits of the second VEX byte are 1's compliment |
3686 | of RXB bits from REX. */ | |
441f6aca | 3687 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | i.tm.opcode_modifier.opcodespace; |
c0f3af97 | 3688 | |
c0f3af97 L |
3689 | i.vex.bytes[2] = (w << 7 |
3690 | | register_specifier << 3 | |
3691 | | vector_length << 2 | |
35648716 | 3692 | | i.tm.opcode_modifier.opcodeprefix); |
c0f3af97 L |
3693 | } |
3694 | } | |
3695 | ||
5b7c81bd | 3696 | static INLINE bool |
e771e7c9 JB |
3697 | is_evex_encoding (const insn_template *t) |
3698 | { | |
7091c612 | 3699 | return t->opcode_modifier.evex || t->opcode_modifier.disp8memshift |
e771e7c9 | 3700 | || t->opcode_modifier.broadcast || t->opcode_modifier.masking |
a80195f1 | 3701 | || t->opcode_modifier.sae; |
e771e7c9 JB |
3702 | } |
3703 | ||
5b7c81bd | 3704 | static INLINE bool |
7a8655d2 JB |
3705 | is_any_vex_encoding (const insn_template *t) |
3706 | { | |
7b47a312 | 3707 | return t->opcode_modifier.vex || is_evex_encoding (t); |
7a8655d2 JB |
3708 | } |
3709 | ||
a5748e0d JB |
3710 | static unsigned int |
3711 | get_broadcast_bytes (const insn_template *t, bool diag) | |
3712 | { | |
3713 | unsigned int op, bytes; | |
3714 | const i386_operand_type *types; | |
3715 | ||
3716 | if (i.broadcast.type) | |
3717 | return i.broadcast.bytes = ((1 << (t->opcode_modifier.broadcast - 1)) | |
3718 | * i.broadcast.type); | |
3719 | ||
3720 | gas_assert (intel_syntax); | |
3721 | ||
3722 | for (op = 0; op < t->operands; ++op) | |
3723 | if (t->operand_types[op].bitfield.baseindex) | |
3724 | break; | |
3725 | ||
3726 | gas_assert (op < t->operands); | |
3727 | ||
3728 | if (t->opcode_modifier.evex | |
3729 | && t->opcode_modifier.evex != EVEXDYN) | |
3730 | switch (i.broadcast.bytes) | |
3731 | { | |
3732 | case 1: | |
3733 | if (t->operand_types[op].bitfield.word) | |
3734 | return 2; | |
3735 | /* Fall through. */ | |
3736 | case 2: | |
3737 | if (t->operand_types[op].bitfield.dword) | |
3738 | return 4; | |
3739 | /* Fall through. */ | |
3740 | case 4: | |
3741 | if (t->operand_types[op].bitfield.qword) | |
3742 | return 8; | |
3743 | /* Fall through. */ | |
3744 | case 8: | |
3745 | if (t->operand_types[op].bitfield.xmmword) | |
3746 | return 16; | |
3747 | if (t->operand_types[op].bitfield.ymmword) | |
3748 | return 32; | |
3749 | if (t->operand_types[op].bitfield.zmmword) | |
3750 | return 64; | |
3751 | /* Fall through. */ | |
3752 | default: | |
3753 | abort (); | |
3754 | } | |
3755 | ||
3756 | gas_assert (op + 1 < t->operands); | |
3757 | ||
3758 | if (t->operand_types[op + 1].bitfield.xmmword | |
3759 | + t->operand_types[op + 1].bitfield.ymmword | |
3760 | + t->operand_types[op + 1].bitfield.zmmword > 1) | |
3761 | { | |
3762 | types = &i.types[op + 1]; | |
3763 | diag = false; | |
3764 | } | |
3765 | else /* Ambiguous - guess with a preference to non-AVX512VL forms. */ | |
3766 | types = &t->operand_types[op]; | |
3767 | ||
3768 | if (types->bitfield.zmmword) | |
3769 | bytes = 64; | |
3770 | else if (types->bitfield.ymmword) | |
3771 | bytes = 32; | |
3772 | else | |
3773 | bytes = 16; | |
3774 | ||
3775 | if (diag) | |
3776 | as_warn (_("ambiguous broadcast for `%s', using %u-bit form"), | |
3777 | t->name, bytes * 8); | |
3778 | ||
3779 | return bytes; | |
3780 | } | |
3781 | ||
43234a1e L |
3782 | /* Build the EVEX prefix. */ |
3783 | ||
3784 | static void | |
3785 | build_evex_prefix (void) | |
3786 | { | |
35648716 | 3787 | unsigned int register_specifier, w; |
43234a1e L |
3788 | rex_byte vrex_used = 0; |
3789 | ||
3790 | /* Check register specifier. */ | |
3791 | if (i.vex.register_specifier) | |
3792 | { | |
3793 | gas_assert ((i.vrex & REX_X) == 0); | |
3794 | ||
3795 | register_specifier = i.vex.register_specifier->reg_num; | |
3796 | if ((i.vex.register_specifier->reg_flags & RegRex)) | |
3797 | register_specifier += 8; | |
3798 | /* The upper 16 registers are encoded in the fourth byte of the | |
3799 | EVEX prefix. */ | |
3800 | if (!(i.vex.register_specifier->reg_flags & RegVRex)) | |
3801 | i.vex.bytes[3] = 0x8; | |
3802 | register_specifier = ~register_specifier & 0xf; | |
3803 | } | |
3804 | else | |
3805 | { | |
3806 | register_specifier = 0xf; | |
3807 | ||
3808 | /* Encode upper 16 vector index register in the fourth byte of | |
3809 | the EVEX prefix. */ | |
3810 | if (!(i.vrex & REX_X)) | |
3811 | i.vex.bytes[3] = 0x8; | |
3812 | else | |
3813 | vrex_used |= REX_X; | |
3814 | } | |
3815 | ||
43234a1e L |
3816 | /* 4 byte EVEX prefix. */ |
3817 | i.vex.length = 4; | |
3818 | i.vex.bytes[0] = 0x62; | |
3819 | ||
43234a1e L |
3820 | /* The high 3 bits of the second EVEX byte are 1's compliment of RXB |
3821 | bits from REX. */ | |
441f6aca | 3822 | gas_assert (i.tm.opcode_modifier.opcodespace >= SPACE_0F); |
0cc78721 | 3823 | gas_assert (i.tm.opcode_modifier.opcodespace <= SPACE_EVEXMAP6); |
441f6aca | 3824 | i.vex.bytes[1] = (~i.rex & 0x7) << 5 | i.tm.opcode_modifier.opcodespace; |
43234a1e L |
3825 | |
3826 | /* The fifth bit of the second EVEX byte is 1's compliment of the | |
3827 | REX_R bit in VREX. */ | |
3828 | if (!(i.vrex & REX_R)) | |
3829 | i.vex.bytes[1] |= 0x10; | |
3830 | else | |
3831 | vrex_used |= REX_R; | |
3832 | ||
3833 | if ((i.reg_operands + i.imm_operands) == i.operands) | |
3834 | { | |
3835 | /* When all operands are registers, the REX_X bit in REX is not | |
3836 | used. We reuse it to encode the upper 16 registers, which is | |
3837 | indicated by the REX_B bit in VREX. The REX_X bit is encoded | |
3838 | as 1's compliment. */ | |
3839 | if ((i.vrex & REX_B)) | |
3840 | { | |
3841 | vrex_used |= REX_B; | |
3842 | i.vex.bytes[1] &= ~0x40; | |
3843 | } | |
3844 | } | |
3845 | ||
3846 | /* EVEX instructions shouldn't need the REX prefix. */ | |
3847 | i.vrex &= ~vrex_used; | |
3848 | gas_assert (i.vrex == 0); | |
3849 | ||
6865c043 L |
3850 | /* Check the REX.W bit and VEXW. */ |
3851 | if (i.tm.opcode_modifier.vexw == VEXWIG) | |
3852 | w = (evexwig == evexw1 || (i.rex & REX_W)) ? 1 : 0; | |
3853 | else if (i.tm.opcode_modifier.vexw) | |
3854 | w = i.tm.opcode_modifier.vexw == VEXW1 ? 1 : 0; | |
3855 | else | |
931d03b7 | 3856 | w = (flag_code == CODE_64BIT ? i.rex & REX_W : evexwig == evexw1) ? 1 : 0; |
43234a1e | 3857 | |
43234a1e | 3858 | /* The third byte of the EVEX prefix. */ |
35648716 JB |
3859 | i.vex.bytes[2] = ((w << 7) |
3860 | | (register_specifier << 3) | |
3861 | | 4 /* Encode the U bit. */ | |
3862 | | i.tm.opcode_modifier.opcodeprefix); | |
43234a1e L |
3863 | |
3864 | /* The fourth byte of the EVEX prefix. */ | |
3865 | /* The zeroing-masking bit. */ | |
6225c532 | 3866 | if (i.mask.reg && i.mask.zeroing) |
43234a1e L |
3867 | i.vex.bytes[3] |= 0x80; |
3868 | ||
3869 | /* Don't always set the broadcast bit if there is no RC. */ | |
ca5312a2 | 3870 | if (i.rounding.type == rc_none) |
43234a1e L |
3871 | { |
3872 | /* Encode the vector length. */ | |
3873 | unsigned int vec_length; | |
3874 | ||
e771e7c9 JB |
3875 | if (!i.tm.opcode_modifier.evex |
3876 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
3877 | { | |
56522fc5 | 3878 | unsigned int op; |
e771e7c9 | 3879 | |
c7213af9 L |
3880 | /* Determine vector length from the last multi-length vector |
3881 | operand. */ | |
56522fc5 | 3882 | for (op = i.operands; op--;) |
e771e7c9 JB |
3883 | if (i.tm.operand_types[op].bitfield.xmmword |
3884 | + i.tm.operand_types[op].bitfield.ymmword | |
3885 | + i.tm.operand_types[op].bitfield.zmmword > 1) | |
3886 | { | |
3887 | if (i.types[op].bitfield.zmmword) | |
c7213af9 L |
3888 | { |
3889 | i.tm.opcode_modifier.evex = EVEX512; | |
3890 | break; | |
3891 | } | |
e771e7c9 | 3892 | else if (i.types[op].bitfield.ymmword) |
c7213af9 L |
3893 | { |
3894 | i.tm.opcode_modifier.evex = EVEX256; | |
3895 | break; | |
3896 | } | |
e771e7c9 | 3897 | else if (i.types[op].bitfield.xmmword) |
c7213af9 L |
3898 | { |
3899 | i.tm.opcode_modifier.evex = EVEX128; | |
3900 | break; | |
3901 | } | |
a5748e0d | 3902 | else if (i.broadcast.bytes && op == i.broadcast.operand) |
625cbd7a | 3903 | { |
a5748e0d | 3904 | switch (get_broadcast_bytes (&i.tm, true)) |
625cbd7a JB |
3905 | { |
3906 | case 64: | |
3907 | i.tm.opcode_modifier.evex = EVEX512; | |
3908 | break; | |
3909 | case 32: | |
3910 | i.tm.opcode_modifier.evex = EVEX256; | |
3911 | break; | |
3912 | case 16: | |
3913 | i.tm.opcode_modifier.evex = EVEX128; | |
3914 | break; | |
3915 | default: | |
c7213af9 | 3916 | abort (); |
625cbd7a | 3917 | } |
c7213af9 | 3918 | break; |
625cbd7a | 3919 | } |
e771e7c9 | 3920 | } |
c7213af9 | 3921 | |
56522fc5 | 3922 | if (op >= MAX_OPERANDS) |
c7213af9 | 3923 | abort (); |
e771e7c9 JB |
3924 | } |
3925 | ||
43234a1e L |
3926 | switch (i.tm.opcode_modifier.evex) |
3927 | { | |
3928 | case EVEXLIG: /* LL' is ignored */ | |
3929 | vec_length = evexlig << 5; | |
3930 | break; | |
3931 | case EVEX128: | |
3932 | vec_length = 0 << 5; | |
3933 | break; | |
3934 | case EVEX256: | |
3935 | vec_length = 1 << 5; | |
3936 | break; | |
3937 | case EVEX512: | |
3938 | vec_length = 2 << 5; | |
3939 | break; | |
3940 | default: | |
3941 | abort (); | |
3942 | break; | |
3943 | } | |
3944 | i.vex.bytes[3] |= vec_length; | |
3945 | /* Encode the broadcast bit. */ | |
a5748e0d | 3946 | if (i.broadcast.bytes) |
43234a1e L |
3947 | i.vex.bytes[3] |= 0x10; |
3948 | } | |
ca5312a2 JB |
3949 | else if (i.rounding.type != saeonly) |
3950 | i.vex.bytes[3] |= 0x10 | (i.rounding.type << 5); | |
43234a1e | 3951 | else |
ca5312a2 | 3952 | i.vex.bytes[3] |= 0x10 | (evexrcig << 5); |
43234a1e | 3953 | |
6225c532 JB |
3954 | if (i.mask.reg) |
3955 | i.vex.bytes[3] |= i.mask.reg->reg_num; | |
43234a1e L |
3956 | } |
3957 | ||
65da13b5 L |
3958 | static void |
3959 | process_immext (void) | |
3960 | { | |
3961 | expressionS *exp; | |
3962 | ||
c0f3af97 | 3963 | /* These AMD 3DNow! and SSE2 instructions have an opcode suffix |
65da13b5 L |
3964 | which is coded in the same place as an 8-bit immediate field |
3965 | would be. Here we fake an 8-bit immediate operand from the | |
3966 | opcode suffix stored in tm.extension_opcode. | |
3967 | ||
c1e679ec | 3968 | AVX instructions also use this encoding, for some of |
c0f3af97 | 3969 | 3 argument instructions. */ |
65da13b5 | 3970 | |
43234a1e | 3971 | gas_assert (i.imm_operands <= 1 |
7ab9ffdd | 3972 | && (i.operands <= 2 |
7a8655d2 | 3973 | || (is_any_vex_encoding (&i.tm) |
7ab9ffdd | 3974 | && i.operands <= 4))); |
65da13b5 L |
3975 | |
3976 | exp = &im_expressions[i.imm_operands++]; | |
3977 | i.op[i.operands].imms = exp; | |
3978 | i.types[i.operands] = imm8; | |
3979 | i.operands++; | |
3980 | exp->X_op = O_constant; | |
3981 | exp->X_add_number = i.tm.extension_opcode; | |
3982 | i.tm.extension_opcode = None; | |
3983 | } | |
3984 | ||
42164a71 L |
3985 | |
3986 | static int | |
3987 | check_hle (void) | |
3988 | { | |
742732c7 | 3989 | switch (i.tm.opcode_modifier.prefixok) |
42164a71 L |
3990 | { |
3991 | default: | |
3992 | abort (); | |
742732c7 JB |
3993 | case PrefixLock: |
3994 | case PrefixNone: | |
3995 | case PrefixNoTrack: | |
3996 | case PrefixRep: | |
165de32a L |
3997 | as_bad (_("invalid instruction `%s' after `%s'"), |
3998 | i.tm.name, i.hle_prefix); | |
42164a71 | 3999 | return 0; |
742732c7 | 4000 | case PrefixHLELock: |
42164a71 L |
4001 | if (i.prefix[LOCK_PREFIX]) |
4002 | return 1; | |
165de32a | 4003 | as_bad (_("missing `lock' with `%s'"), i.hle_prefix); |
42164a71 | 4004 | return 0; |
742732c7 | 4005 | case PrefixHLEAny: |
42164a71 | 4006 | return 1; |
742732c7 | 4007 | case PrefixHLERelease: |
42164a71 L |
4008 | if (i.prefix[HLE_PREFIX] != XRELEASE_PREFIX_OPCODE) |
4009 | { | |
4010 | as_bad (_("instruction `%s' after `xacquire' not allowed"), | |
4011 | i.tm.name); | |
4012 | return 0; | |
4013 | } | |
8dc0818e | 4014 | if (i.mem_operands == 0 || !(i.flags[i.operands - 1] & Operand_Mem)) |
42164a71 L |
4015 | { |
4016 | as_bad (_("memory destination needed for instruction `%s'" | |
4017 | " after `xrelease'"), i.tm.name); | |
4018 | return 0; | |
4019 | } | |
4020 | return 1; | |
4021 | } | |
4022 | } | |
4023 | ||
c8480b58 L |
4024 | /* Encode aligned vector move as unaligned vector move. */ |
4025 | ||
4026 | static void | |
4027 | encode_with_unaligned_vector_move (void) | |
4028 | { | |
4029 | switch (i.tm.base_opcode) | |
4030 | { | |
b3a9fe6f L |
4031 | case 0x28: /* Load instructions. */ |
4032 | case 0x29: /* Store instructions. */ | |
c8480b58 L |
4033 | /* movaps/movapd/vmovaps/vmovapd. */ |
4034 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4035 | && i.tm.opcode_modifier.opcodeprefix <= PREFIX_0X66) | |
b3a9fe6f | 4036 | i.tm.base_opcode = 0x10 | (i.tm.base_opcode & 1); |
c8480b58 | 4037 | break; |
b3a9fe6f L |
4038 | case 0x6f: /* Load instructions. */ |
4039 | case 0x7f: /* Store instructions. */ | |
c8480b58 L |
4040 | /* movdqa/vmovdqa/vmovdqa64/vmovdqa32. */ |
4041 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4042 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0X66) | |
4043 | i.tm.opcode_modifier.opcodeprefix = PREFIX_0XF3; | |
4044 | break; | |
4045 | default: | |
4046 | break; | |
4047 | } | |
4048 | } | |
4049 | ||
b6f8c7c4 L |
4050 | /* Try the shortest encoding by shortening operand size. */ |
4051 | ||
4052 | static void | |
4053 | optimize_encoding (void) | |
4054 | { | |
a0a1771e | 4055 | unsigned int j; |
b6f8c7c4 | 4056 | |
fe134c65 JB |
4057 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
4058 | && i.tm.base_opcode == 0x8d) | |
4059 | { | |
4060 | /* Optimize: -O: | |
4061 | lea symbol, %rN -> mov $symbol, %rN | |
4062 | lea (%rM), %rN -> mov %rM, %rN | |
4063 | lea (,%rM,1), %rN -> mov %rM, %rN | |
4064 | ||
4065 | and in 32-bit mode for 16-bit addressing | |
4066 | ||
4067 | lea (%rM), %rN -> movzx %rM, %rN | |
4068 | ||
4069 | and in 64-bit mode zap 32-bit addressing in favor of using a | |
4070 | 32-bit (or less) destination. | |
4071 | */ | |
4072 | if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX]) | |
4073 | { | |
4074 | if (!i.op[1].regs->reg_type.bitfield.word) | |
4075 | i.tm.opcode_modifier.size = SIZE32; | |
4076 | i.prefix[ADDR_PREFIX] = 0; | |
4077 | } | |
4078 | ||
4079 | if (!i.index_reg && !i.base_reg) | |
4080 | { | |
4081 | /* Handle: | |
4082 | lea symbol, %rN -> mov $symbol, %rN | |
4083 | */ | |
4084 | if (flag_code == CODE_64BIT) | |
4085 | { | |
4086 | /* Don't transform a relocation to a 16-bit one. */ | |
4087 | if (i.op[0].disps | |
4088 | && i.op[0].disps->X_op != O_constant | |
4089 | && i.op[1].regs->reg_type.bitfield.word) | |
4090 | return; | |
4091 | ||
4092 | if (!i.op[1].regs->reg_type.bitfield.qword | |
4093 | || i.tm.opcode_modifier.size == SIZE32) | |
4094 | { | |
4095 | i.tm.base_opcode = 0xb8; | |
4096 | i.tm.opcode_modifier.modrm = 0; | |
4097 | if (!i.op[1].regs->reg_type.bitfield.word) | |
4098 | i.types[0].bitfield.imm32 = 1; | |
4099 | else | |
4100 | { | |
4101 | i.tm.opcode_modifier.size = SIZE16; | |
4102 | i.types[0].bitfield.imm16 = 1; | |
4103 | } | |
4104 | } | |
4105 | else | |
4106 | { | |
4107 | /* Subject to further optimization below. */ | |
4108 | i.tm.base_opcode = 0xc7; | |
4109 | i.tm.extension_opcode = 0; | |
4110 | i.types[0].bitfield.imm32s = 1; | |
4111 | i.types[0].bitfield.baseindex = 0; | |
4112 | } | |
4113 | } | |
4114 | /* Outside of 64-bit mode address and operand sizes have to match if | |
4115 | a relocation is involved, as otherwise we wouldn't (currently) or | |
4116 | even couldn't express the relocation correctly. */ | |
4117 | else if (i.op[0].disps | |
4118 | && i.op[0].disps->X_op != O_constant | |
4119 | && ((!i.prefix[ADDR_PREFIX]) | |
4120 | != (flag_code == CODE_32BIT | |
4121 | ? i.op[1].regs->reg_type.bitfield.dword | |
4122 | : i.op[1].regs->reg_type.bitfield.word))) | |
4123 | return; | |
7772f168 JB |
4124 | /* In 16-bit mode converting LEA with 16-bit addressing and a 32-bit |
4125 | destination is going to grow encoding size. */ | |
4126 | else if (flag_code == CODE_16BIT | |
4127 | && (optimize <= 1 || optimize_for_space) | |
4128 | && !i.prefix[ADDR_PREFIX] | |
4129 | && i.op[1].regs->reg_type.bitfield.dword) | |
4130 | return; | |
fe134c65 JB |
4131 | else |
4132 | { | |
4133 | i.tm.base_opcode = 0xb8; | |
4134 | i.tm.opcode_modifier.modrm = 0; | |
4135 | if (i.op[1].regs->reg_type.bitfield.dword) | |
4136 | i.types[0].bitfield.imm32 = 1; | |
4137 | else | |
4138 | i.types[0].bitfield.imm16 = 1; | |
4139 | ||
4140 | if (i.op[0].disps | |
4141 | && i.op[0].disps->X_op == O_constant | |
4142 | && i.op[1].regs->reg_type.bitfield.dword | |
60cfa10c L |
4143 | /* NB: Add () to !i.prefix[ADDR_PREFIX] to silence |
4144 | GCC 5. */ | |
4145 | && (!i.prefix[ADDR_PREFIX]) != (flag_code == CODE_32BIT)) | |
fe134c65 JB |
4146 | i.op[0].disps->X_add_number &= 0xffff; |
4147 | } | |
4148 | ||
4149 | i.tm.operand_types[0] = i.types[0]; | |
4150 | i.imm_operands = 1; | |
4151 | if (!i.op[0].imms) | |
4152 | { | |
4153 | i.op[0].imms = &im_expressions[0]; | |
4154 | i.op[0].imms->X_op = O_absent; | |
4155 | } | |
4156 | } | |
4157 | else if (i.op[0].disps | |
4158 | && (i.op[0].disps->X_op != O_constant | |
4159 | || i.op[0].disps->X_add_number)) | |
4160 | return; | |
4161 | else | |
4162 | { | |
4163 | /* Handle: | |
4164 | lea (%rM), %rN -> mov %rM, %rN | |
4165 | lea (,%rM,1), %rN -> mov %rM, %rN | |
4166 | lea (%rM), %rN -> movzx %rM, %rN | |
4167 | */ | |
4168 | const reg_entry *addr_reg; | |
4169 | ||
4170 | if (!i.index_reg && i.base_reg->reg_num != RegIP) | |
4171 | addr_reg = i.base_reg; | |
4172 | else if (!i.base_reg | |
4173 | && i.index_reg->reg_num != RegIZ | |
4174 | && !i.log2_scale_factor) | |
4175 | addr_reg = i.index_reg; | |
4176 | else | |
4177 | return; | |
4178 | ||
4179 | if (addr_reg->reg_type.bitfield.word | |
4180 | && i.op[1].regs->reg_type.bitfield.dword) | |
4181 | { | |
4182 | if (flag_code != CODE_32BIT) | |
4183 | return; | |
4184 | i.tm.opcode_modifier.opcodespace = SPACE_0F; | |
4185 | i.tm.base_opcode = 0xb7; | |
4186 | } | |
4187 | else | |
4188 | i.tm.base_opcode = 0x8b; | |
4189 | ||
4190 | if (addr_reg->reg_type.bitfield.dword | |
4191 | && i.op[1].regs->reg_type.bitfield.qword) | |
4192 | i.tm.opcode_modifier.size = SIZE32; | |
4193 | ||
4194 | i.op[0].regs = addr_reg; | |
4195 | i.reg_operands = 2; | |
4196 | } | |
4197 | ||
4198 | i.mem_operands = 0; | |
4199 | i.disp_operands = 0; | |
4200 | i.prefix[ADDR_PREFIX] = 0; | |
4201 | i.prefix[SEG_PREFIX] = 0; | |
4202 | i.seg[0] = NULL; | |
4203 | } | |
4204 | ||
b6f8c7c4 | 4205 | if (optimize_for_space |
389d00a5 | 4206 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
b6f8c7c4 L |
4207 | && i.reg_operands == 1 |
4208 | && i.imm_operands == 1 | |
4209 | && !i.types[1].bitfield.byte | |
4210 | && i.op[0].imms->X_op == O_constant | |
4211 | && fits_in_imm7 (i.op[0].imms->X_add_number) | |
72aea328 | 4212 | && (i.tm.base_opcode == 0xa8 |
b6f8c7c4 L |
4213 | || (i.tm.base_opcode == 0xf6 |
4214 | && i.tm.extension_opcode == 0x0))) | |
4215 | { | |
4216 | /* Optimize: -Os: | |
4217 | test $imm7, %r64/%r32/%r16 -> test $imm7, %r8 | |
4218 | */ | |
4219 | unsigned int base_regnum = i.op[1].regs->reg_num; | |
4220 | if (flag_code == CODE_64BIT || base_regnum < 4) | |
4221 | { | |
4222 | i.types[1].bitfield.byte = 1; | |
4223 | /* Ignore the suffix. */ | |
4224 | i.suffix = 0; | |
7697afb6 JB |
4225 | /* Convert to byte registers. */ |
4226 | if (i.types[1].bitfield.word) | |
4227 | j = 16; | |
4228 | else if (i.types[1].bitfield.dword) | |
4229 | j = 32; | |
4230 | else | |
4231 | j = 48; | |
4232 | if (!(i.op[1].regs->reg_flags & RegRex) && base_regnum < 4) | |
4233 | j += 8; | |
4234 | i.op[1].regs -= j; | |
b6f8c7c4 L |
4235 | } |
4236 | } | |
4237 | else if (flag_code == CODE_64BIT | |
389d00a5 | 4238 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
d3d50934 L |
4239 | && ((i.types[1].bitfield.qword |
4240 | && i.reg_operands == 1 | |
b6f8c7c4 L |
4241 | && i.imm_operands == 1 |
4242 | && i.op[0].imms->X_op == O_constant | |
507916b8 | 4243 | && ((i.tm.base_opcode == 0xb8 |
b6f8c7c4 L |
4244 | && i.tm.extension_opcode == None |
4245 | && fits_in_unsigned_long (i.op[0].imms->X_add_number)) | |
4246 | || (fits_in_imm31 (i.op[0].imms->X_add_number) | |
72aea328 JB |
4247 | && ((i.tm.base_opcode == 0x24 |
4248 | || i.tm.base_opcode == 0xa8) | |
b6f8c7c4 L |
4249 | || (i.tm.base_opcode == 0x80 |
4250 | && i.tm.extension_opcode == 0x4) | |
4251 | || ((i.tm.base_opcode == 0xf6 | |
507916b8 | 4252 | || (i.tm.base_opcode | 1) == 0xc7) |
b8364fa7 JB |
4253 | && i.tm.extension_opcode == 0x0))) |
4254 | || (fits_in_imm7 (i.op[0].imms->X_add_number) | |
4255 | && i.tm.base_opcode == 0x83 | |
4256 | && i.tm.extension_opcode == 0x4))) | |
d3d50934 L |
4257 | || (i.types[0].bitfield.qword |
4258 | && ((i.reg_operands == 2 | |
4259 | && i.op[0].regs == i.op[1].regs | |
72aea328 JB |
4260 | && (i.tm.base_opcode == 0x30 |
4261 | || i.tm.base_opcode == 0x28)) | |
d3d50934 L |
4262 | || (i.reg_operands == 1 |
4263 | && i.operands == 1 | |
72aea328 | 4264 | && i.tm.base_opcode == 0x30))))) |
b6f8c7c4 L |
4265 | { |
4266 | /* Optimize: -O: | |
4267 | andq $imm31, %r64 -> andl $imm31, %r32 | |
b8364fa7 | 4268 | andq $imm7, %r64 -> andl $imm7, %r32 |
b6f8c7c4 L |
4269 | testq $imm31, %r64 -> testl $imm31, %r32 |
4270 | xorq %r64, %r64 -> xorl %r32, %r32 | |
4271 | subq %r64, %r64 -> subl %r32, %r32 | |
4272 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4273 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4274 | */ | |
4275 | i.tm.opcode_modifier.norex64 = 1; | |
507916b8 | 4276 | if (i.tm.base_opcode == 0xb8 || (i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4277 | { |
4278 | /* Handle | |
4279 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4280 | movq $imm32, %r64 -> movl $imm32, %r32 | |
4281 | */ | |
4282 | i.tm.operand_types[0].bitfield.imm32 = 1; | |
4283 | i.tm.operand_types[0].bitfield.imm32s = 0; | |
4284 | i.tm.operand_types[0].bitfield.imm64 = 0; | |
4285 | i.types[0].bitfield.imm32 = 1; | |
4286 | i.types[0].bitfield.imm32s = 0; | |
4287 | i.types[0].bitfield.imm64 = 0; | |
4288 | i.types[1].bitfield.dword = 1; | |
4289 | i.types[1].bitfield.qword = 0; | |
507916b8 | 4290 | if ((i.tm.base_opcode | 1) == 0xc7) |
b6f8c7c4 L |
4291 | { |
4292 | /* Handle | |
4293 | movq $imm31, %r64 -> movl $imm31, %r32 | |
4294 | */ | |
507916b8 | 4295 | i.tm.base_opcode = 0xb8; |
b6f8c7c4 | 4296 | i.tm.extension_opcode = None; |
507916b8 | 4297 | i.tm.opcode_modifier.w = 0; |
b6f8c7c4 L |
4298 | i.tm.opcode_modifier.modrm = 0; |
4299 | } | |
4300 | } | |
4301 | } | |
5641ec01 JB |
4302 | else if (optimize > 1 |
4303 | && !optimize_for_space | |
389d00a5 | 4304 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
5641ec01 JB |
4305 | && i.reg_operands == 2 |
4306 | && i.op[0].regs == i.op[1].regs | |
4307 | && ((i.tm.base_opcode & ~(Opcode_D | 1)) == 0x8 | |
4308 | || (i.tm.base_opcode & ~(Opcode_D | 1)) == 0x20) | |
4309 | && (flag_code != CODE_64BIT || !i.types[0].bitfield.dword)) | |
4310 | { | |
4311 | /* Optimize: -O2: | |
4312 | andb %rN, %rN -> testb %rN, %rN | |
4313 | andw %rN, %rN -> testw %rN, %rN | |
4314 | andq %rN, %rN -> testq %rN, %rN | |
4315 | orb %rN, %rN -> testb %rN, %rN | |
4316 | orw %rN, %rN -> testw %rN, %rN | |
4317 | orq %rN, %rN -> testq %rN, %rN | |
4318 | ||
4319 | and outside of 64-bit mode | |
4320 | ||
4321 | andl %rN, %rN -> testl %rN, %rN | |
4322 | orl %rN, %rN -> testl %rN, %rN | |
4323 | */ | |
4324 | i.tm.base_opcode = 0x84 | (i.tm.base_opcode & 1); | |
4325 | } | |
99112332 | 4326 | else if (i.reg_operands == 3 |
b6f8c7c4 L |
4327 | && i.op[0].regs == i.op[1].regs |
4328 | && !i.types[2].bitfield.xmmword | |
4329 | && (i.tm.opcode_modifier.vex | |
6225c532 | 4330 | || ((!i.mask.reg || i.mask.zeroing) |
e771e7c9 | 4331 | && is_evex_encoding (&i.tm) |
80c34c38 | 4332 | && (i.vec_encoding != vex_encoding_evex |
dd22218c | 4333 | || cpu_arch_isa_flags.bitfield.cpuavx512vl |
80c34c38 | 4334 | || i.tm.cpu_flags.bitfield.cpuavx512vl |
7091c612 | 4335 | || (i.tm.operand_types[2].bitfield.zmmword |
dd22218c | 4336 | && i.types[2].bitfield.ymmword)))) |
5844ccaa JB |
4337 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
4338 | && ((i.tm.base_opcode | 2) == 0x57 | |
4339 | || i.tm.base_opcode == 0xdf | |
4340 | || i.tm.base_opcode == 0xef | |
4341 | || (i.tm.base_opcode | 3) == 0xfb | |
4342 | || i.tm.base_opcode == 0x42 | |
4343 | || i.tm.base_opcode == 0x47)) | |
b6f8c7c4 | 4344 | { |
99112332 | 4345 | /* Optimize: -O1: |
8305403a L |
4346 | VOP, one of vandnps, vandnpd, vxorps, vxorpd, vpsubb, vpsubd, |
4347 | vpsubq and vpsubw: | |
b6f8c7c4 L |
4348 | EVEX VOP %zmmM, %zmmM, %zmmN |
4349 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4350 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4351 | EVEX VOP %ymmM, %ymmM, %ymmN |
4352 | -> VEX VOP %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4353 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4354 | VEX VOP %ymmM, %ymmM, %ymmN |
4355 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4356 | VOP, one of vpandn and vpxor: | |
4357 | VEX VOP %ymmM, %ymmM, %ymmN | |
4358 | -> VEX VOP %xmmM, %xmmM, %xmmN | |
4359 | VOP, one of vpandnd and vpandnq: | |
4360 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4361 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4362 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4363 | EVEX VOP %ymmM, %ymmM, %ymmN |
4364 | -> VEX vpandn %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4365 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4366 | VOP, one of vpxord and vpxorq: |
4367 | EVEX VOP %zmmM, %zmmM, %zmmN | |
4368 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4369 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
b6f8c7c4 L |
4370 | EVEX VOP %ymmM, %ymmM, %ymmN |
4371 | -> VEX vpxor %xmmM, %xmmM, %xmmN (M and N < 16) | |
99112332 | 4372 | -> EVEX VOP %xmmM, %xmmM, %xmmN (M || N >= 16) (-O2) |
1424ad86 JB |
4373 | VOP, one of kxord and kxorq: |
4374 | VEX VOP %kM, %kM, %kN | |
4375 | -> VEX kxorw %kM, %kM, %kN | |
4376 | VOP, one of kandnd and kandnq: | |
4377 | VEX VOP %kM, %kM, %kN | |
4378 | -> VEX kandnw %kM, %kM, %kN | |
b6f8c7c4 | 4379 | */ |
e771e7c9 | 4380 | if (is_evex_encoding (&i.tm)) |
b6f8c7c4 | 4381 | { |
7b1d7ca1 | 4382 | if (i.vec_encoding != vex_encoding_evex) |
b6f8c7c4 L |
4383 | { |
4384 | i.tm.opcode_modifier.vex = VEX128; | |
4385 | i.tm.opcode_modifier.vexw = VEXW0; | |
4386 | i.tm.opcode_modifier.evex = 0; | |
4387 | } | |
7b1d7ca1 | 4388 | else if (optimize > 1) |
dd22218c L |
4389 | i.tm.opcode_modifier.evex = EVEX128; |
4390 | else | |
4391 | return; | |
b6f8c7c4 | 4392 | } |
f74a6307 | 4393 | else if (i.tm.operand_types[0].bitfield.class == RegMask) |
1424ad86 | 4394 | { |
35648716 | 4395 | i.tm.opcode_modifier.opcodeprefix = PREFIX_NONE; |
1424ad86 JB |
4396 | i.tm.opcode_modifier.vexw = VEXW0; |
4397 | } | |
b6f8c7c4 L |
4398 | else |
4399 | i.tm.opcode_modifier.vex = VEX128; | |
4400 | ||
4401 | if (i.tm.opcode_modifier.vex) | |
4402 | for (j = 0; j < 3; j++) | |
4403 | { | |
4404 | i.types[j].bitfield.xmmword = 1; | |
4405 | i.types[j].bitfield.ymmword = 0; | |
4406 | } | |
4407 | } | |
392a5972 | 4408 | else if (i.vec_encoding != vex_encoding_evex |
97ed31ae | 4409 | && !i.types[0].bitfield.zmmword |
392a5972 | 4410 | && !i.types[1].bitfield.zmmword |
6225c532 | 4411 | && !i.mask.reg |
a5748e0d | 4412 | && !i.broadcast.bytes |
97ed31ae | 4413 | && is_evex_encoding (&i.tm) |
35648716 JB |
4414 | && ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x6f |
4415 | || (i.tm.base_opcode & ~4) == 0xdb | |
4416 | || (i.tm.base_opcode & ~4) == 0xeb) | |
97ed31ae L |
4417 | && i.tm.extension_opcode == None) |
4418 | { | |
4419 | /* Optimize: -O1: | |
4420 | VOP, one of vmovdqa32, vmovdqa64, vmovdqu8, vmovdqu16, | |
4421 | vmovdqu32 and vmovdqu64: | |
4422 | EVEX VOP %xmmM, %xmmN | |
4423 | -> VEX vmovdqa|vmovdqu %xmmM, %xmmN (M and N < 16) | |
4424 | EVEX VOP %ymmM, %ymmN | |
4425 | -> VEX vmovdqa|vmovdqu %ymmM, %ymmN (M and N < 16) | |
4426 | EVEX VOP %xmmM, mem | |
4427 | -> VEX vmovdqa|vmovdqu %xmmM, mem (M < 16) | |
4428 | EVEX VOP %ymmM, mem | |
4429 | -> VEX vmovdqa|vmovdqu %ymmM, mem (M < 16) | |
4430 | EVEX VOP mem, %xmmN | |
4431 | -> VEX mvmovdqa|vmovdquem, %xmmN (N < 16) | |
4432 | EVEX VOP mem, %ymmN | |
4433 | -> VEX vmovdqa|vmovdqu mem, %ymmN (N < 16) | |
a0a1771e JB |
4434 | VOP, one of vpand, vpandn, vpor, vpxor: |
4435 | EVEX VOP{d,q} %xmmL, %xmmM, %xmmN | |
4436 | -> VEX VOP %xmmL, %xmmM, %xmmN (L, M, and N < 16) | |
4437 | EVEX VOP{d,q} %ymmL, %ymmM, %ymmN | |
4438 | -> VEX VOP %ymmL, %ymmM, %ymmN (L, M, and N < 16) | |
4439 | EVEX VOP{d,q} mem, %xmmM, %xmmN | |
4440 | -> VEX VOP mem, %xmmM, %xmmN (M and N < 16) | |
4441 | EVEX VOP{d,q} mem, %ymmM, %ymmN | |
4442 | -> VEX VOP mem, %ymmM, %ymmN (M and N < 16) | |
97ed31ae | 4443 | */ |
a0a1771e | 4444 | for (j = 0; j < i.operands; j++) |
392a5972 L |
4445 | if (operand_type_check (i.types[j], disp) |
4446 | && i.op[j].disps->X_op == O_constant) | |
4447 | { | |
4448 | /* Since the VEX prefix has 2 or 3 bytes, the EVEX prefix | |
4449 | has 4 bytes, EVEX Disp8 has 1 byte and VEX Disp32 has 4 | |
4450 | bytes, we choose EVEX Disp8 over VEX Disp32. */ | |
4451 | int evex_disp8, vex_disp8; | |
4452 | unsigned int memshift = i.memshift; | |
4453 | offsetT n = i.op[j].disps->X_add_number; | |
4454 | ||
4455 | evex_disp8 = fits_in_disp8 (n); | |
4456 | i.memshift = 0; | |
4457 | vex_disp8 = fits_in_disp8 (n); | |
4458 | if (evex_disp8 != vex_disp8) | |
4459 | { | |
4460 | i.memshift = memshift; | |
4461 | return; | |
4462 | } | |
4463 | ||
4464 | i.types[j].bitfield.disp8 = vex_disp8; | |
4465 | break; | |
4466 | } | |
35648716 JB |
4467 | if ((i.tm.base_opcode & ~Opcode_SIMD_IntD) == 0x6f |
4468 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2) | |
4469 | i.tm.opcode_modifier.opcodeprefix = PREFIX_0XF3; | |
97ed31ae L |
4470 | i.tm.opcode_modifier.vex |
4471 | = i.types[0].bitfield.ymmword ? VEX256 : VEX128; | |
4472 | i.tm.opcode_modifier.vexw = VEXW0; | |
79dec6b7 | 4473 | /* VPAND, VPOR, and VPXOR are commutative. */ |
35648716 | 4474 | if (i.reg_operands == 3 && i.tm.base_opcode != 0xdf) |
79dec6b7 | 4475 | i.tm.opcode_modifier.commutative = 1; |
97ed31ae L |
4476 | i.tm.opcode_modifier.evex = 0; |
4477 | i.tm.opcode_modifier.masking = 0; | |
a0a1771e | 4478 | i.tm.opcode_modifier.broadcast = 0; |
97ed31ae L |
4479 | i.tm.opcode_modifier.disp8memshift = 0; |
4480 | i.memshift = 0; | |
a0a1771e JB |
4481 | if (j < i.operands) |
4482 | i.types[j].bitfield.disp8 | |
4483 | = fits_in_disp8 (i.op[j].disps->X_add_number); | |
97ed31ae | 4484 | } |
b6f8c7c4 L |
4485 | } |
4486 | ||
ae531041 L |
4487 | /* Return non-zero for load instruction. */ |
4488 | ||
4489 | static int | |
4490 | load_insn_p (void) | |
4491 | { | |
4492 | unsigned int dest; | |
4493 | int any_vex_p = is_any_vex_encoding (&i.tm); | |
4494 | unsigned int base_opcode = i.tm.base_opcode | 1; | |
4495 | ||
4496 | if (!any_vex_p) | |
4497 | { | |
a09f656b | 4498 | /* Anysize insns: lea, invlpg, clflush, prefetchnta, prefetcht0, |
4499 | prefetcht1, prefetcht2, prefetchtw, bndmk, bndcl, bndcu, bndcn, | |
4500 | bndstx, bndldx, prefetchwt1, clflushopt, clwb, cldemote. */ | |
4501 | if (i.tm.opcode_modifier.anysize) | |
ae531041 L |
4502 | return 0; |
4503 | ||
389d00a5 JB |
4504 | /* pop. */ |
4505 | if (strcmp (i.tm.name, "pop") == 0) | |
4506 | return 1; | |
4507 | } | |
4508 | ||
4509 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE) | |
4510 | { | |
4511 | /* popf, popa. */ | |
4512 | if (i.tm.base_opcode == 0x9d | |
a09f656b | 4513 | || i.tm.base_opcode == 0x61) |
ae531041 L |
4514 | return 1; |
4515 | ||
4516 | /* movs, cmps, lods, scas. */ | |
4517 | if ((i.tm.base_opcode | 0xb) == 0xaf) | |
4518 | return 1; | |
4519 | ||
a09f656b | 4520 | /* outs, xlatb. */ |
4521 | if (base_opcode == 0x6f | |
4522 | || i.tm.base_opcode == 0xd7) | |
ae531041 | 4523 | return 1; |
a09f656b | 4524 | /* NB: For AMD-specific insns with implicit memory operands, |
4525 | they're intentionally not covered. */ | |
ae531041 L |
4526 | } |
4527 | ||
4528 | /* No memory operand. */ | |
4529 | if (!i.mem_operands) | |
4530 | return 0; | |
4531 | ||
4532 | if (any_vex_p) | |
4533 | { | |
4534 | /* vldmxcsr. */ | |
4535 | if (i.tm.base_opcode == 0xae | |
4536 | && i.tm.opcode_modifier.vex | |
441f6aca | 4537 | && i.tm.opcode_modifier.opcodespace == SPACE_0F |
35648716 | 4538 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE |
ae531041 L |
4539 | && i.tm.extension_opcode == 2) |
4540 | return 1; | |
4541 | } | |
389d00a5 | 4542 | else if (i.tm.opcode_modifier.opcodespace == SPACE_BASE) |
ae531041 L |
4543 | { |
4544 | /* test, not, neg, mul, imul, div, idiv. */ | |
4545 | if ((i.tm.base_opcode == 0xf6 || i.tm.base_opcode == 0xf7) | |
4546 | && i.tm.extension_opcode != 1) | |
4547 | return 1; | |
4548 | ||
4549 | /* inc, dec. */ | |
4550 | if (base_opcode == 0xff && i.tm.extension_opcode <= 1) | |
4551 | return 1; | |
4552 | ||
4553 | /* add, or, adc, sbb, and, sub, xor, cmp. */ | |
4554 | if (i.tm.base_opcode >= 0x80 && i.tm.base_opcode <= 0x83) | |
4555 | return 1; | |
4556 | ||
ae531041 L |
4557 | /* rol, ror, rcl, rcr, shl/sal, shr, sar. */ |
4558 | if ((base_opcode == 0xc1 | |
4559 | || (i.tm.base_opcode >= 0xd0 && i.tm.base_opcode <= 0xd3)) | |
4560 | && i.tm.extension_opcode != 6) | |
4561 | return 1; | |
4562 | ||
ae531041 | 4563 | /* Check for x87 instructions. */ |
389d00a5 | 4564 | if (base_opcode >= 0xd8 && base_opcode <= 0xdf) |
ae531041 L |
4565 | { |
4566 | /* Skip fst, fstp, fstenv, fstcw. */ | |
4567 | if (i.tm.base_opcode == 0xd9 | |
4568 | && (i.tm.extension_opcode == 2 | |
4569 | || i.tm.extension_opcode == 3 | |
4570 | || i.tm.extension_opcode == 6 | |
4571 | || i.tm.extension_opcode == 7)) | |
4572 | return 0; | |
4573 | ||
4574 | /* Skip fisttp, fist, fistp, fstp. */ | |
4575 | if (i.tm.base_opcode == 0xdb | |
4576 | && (i.tm.extension_opcode == 1 | |
4577 | || i.tm.extension_opcode == 2 | |
4578 | || i.tm.extension_opcode == 3 | |
4579 | || i.tm.extension_opcode == 7)) | |
4580 | return 0; | |
4581 | ||
4582 | /* Skip fisttp, fst, fstp, fsave, fstsw. */ | |
4583 | if (i.tm.base_opcode == 0xdd | |
4584 | && (i.tm.extension_opcode == 1 | |
4585 | || i.tm.extension_opcode == 2 | |
4586 | || i.tm.extension_opcode == 3 | |
4587 | || i.tm.extension_opcode == 6 | |
4588 | || i.tm.extension_opcode == 7)) | |
4589 | return 0; | |
4590 | ||
4591 | /* Skip fisttp, fist, fistp, fbstp, fistp. */ | |
4592 | if (i.tm.base_opcode == 0xdf | |
4593 | && (i.tm.extension_opcode == 1 | |
4594 | || i.tm.extension_opcode == 2 | |
4595 | || i.tm.extension_opcode == 3 | |
4596 | || i.tm.extension_opcode == 6 | |
4597 | || i.tm.extension_opcode == 7)) | |
4598 | return 0; | |
4599 | ||
4600 | return 1; | |
4601 | } | |
4602 | } | |
389d00a5 JB |
4603 | else if (i.tm.opcode_modifier.opcodespace == SPACE_0F) |
4604 | { | |
4605 | /* bt, bts, btr, btc. */ | |
4606 | if (i.tm.base_opcode == 0xba | |
4607 | && (i.tm.extension_opcode >= 4 && i.tm.extension_opcode <= 7)) | |
4608 | return 1; | |
4609 | ||
4610 | /* cmpxchg8b, cmpxchg16b, xrstors, vmptrld. */ | |
4611 | if (i.tm.base_opcode == 0xc7 | |
4612 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE | |
4613 | && (i.tm.extension_opcode == 1 || i.tm.extension_opcode == 3 | |
4614 | || i.tm.extension_opcode == 6)) | |
4615 | return 1; | |
4616 | ||
4617 | /* fxrstor, ldmxcsr, xrstor. */ | |
4618 | if (i.tm.base_opcode == 0xae | |
4619 | && (i.tm.extension_opcode == 1 | |
4620 | || i.tm.extension_opcode == 2 | |
4621 | || i.tm.extension_opcode == 5)) | |
4622 | return 1; | |
4623 | ||
4624 | /* lgdt, lidt, lmsw. */ | |
4625 | if (i.tm.base_opcode == 0x01 | |
4626 | && (i.tm.extension_opcode == 2 | |
4627 | || i.tm.extension_opcode == 3 | |
4628 | || i.tm.extension_opcode == 6)) | |
4629 | return 1; | |
4630 | } | |
ae531041 L |
4631 | |
4632 | dest = i.operands - 1; | |
4633 | ||
4634 | /* Check fake imm8 operand and 3 source operands. */ | |
4635 | if ((i.tm.opcode_modifier.immext | |
4636 | || i.tm.opcode_modifier.vexsources == VEX3SOURCES) | |
4637 | && i.types[dest].bitfield.imm8) | |
4638 | dest--; | |
4639 | ||
389d00a5 JB |
4640 | /* add, or, adc, sbb, and, sub, xor, cmp, test, xchg. */ |
4641 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE | |
ae531041 L |
4642 | && (base_opcode == 0x1 |
4643 | || base_opcode == 0x9 | |
4644 | || base_opcode == 0x11 | |
4645 | || base_opcode == 0x19 | |
4646 | || base_opcode == 0x21 | |
4647 | || base_opcode == 0x29 | |
4648 | || base_opcode == 0x31 | |
4649 | || base_opcode == 0x39 | |
389d00a5 JB |
4650 | || (base_opcode | 2) == 0x87)) |
4651 | return 1; | |
4652 | ||
4653 | /* xadd. */ | |
4654 | if (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
4655 | && base_opcode == 0xc1) | |
ae531041 L |
4656 | return 1; |
4657 | ||
4658 | /* Check for load instruction. */ | |
4659 | return (i.types[dest].bitfield.class != ClassNone | |
4660 | || i.types[dest].bitfield.instance == Accum); | |
4661 | } | |
4662 | ||
4663 | /* Output lfence, 0xfaee8, after instruction. */ | |
4664 | ||
4665 | static void | |
4666 | insert_lfence_after (void) | |
4667 | { | |
4668 | if (lfence_after_load && load_insn_p ()) | |
4669 | { | |
a09f656b | 4670 | /* There are also two REP string instructions that require |
4671 | special treatment. Specifically, the compare string (CMPS) | |
4672 | and scan string (SCAS) instructions set EFLAGS in a manner | |
4673 | that depends on the data being compared/scanned. When used | |
4674 | with a REP prefix, the number of iterations may therefore | |
4675 | vary depending on this data. If the data is a program secret | |
4676 | chosen by the adversary using an LVI method, | |
4677 | then this data-dependent behavior may leak some aspect | |
4678 | of the secret. */ | |
4679 | if (((i.tm.base_opcode | 0x1) == 0xa7 | |
4680 | || (i.tm.base_opcode | 0x1) == 0xaf) | |
4681 | && i.prefix[REP_PREFIX]) | |
4682 | { | |
4683 | as_warn (_("`%s` changes flags which would affect control flow behavior"), | |
4684 | i.tm.name); | |
4685 | } | |
ae531041 L |
4686 | char *p = frag_more (3); |
4687 | *p++ = 0xf; | |
4688 | *p++ = 0xae; | |
4689 | *p = 0xe8; | |
4690 | } | |
4691 | } | |
4692 | ||
4693 | /* Output lfence, 0xfaee8, before instruction. */ | |
4694 | ||
4695 | static void | |
4696 | insert_lfence_before (void) | |
4697 | { | |
4698 | char *p; | |
4699 | ||
389d00a5 | 4700 | if (i.tm.opcode_modifier.opcodespace != SPACE_BASE) |
ae531041 L |
4701 | return; |
4702 | ||
4703 | if (i.tm.base_opcode == 0xff | |
4704 | && (i.tm.extension_opcode == 2 || i.tm.extension_opcode == 4)) | |
4705 | { | |
4706 | /* Insert lfence before indirect branch if needed. */ | |
4707 | ||
4708 | if (lfence_before_indirect_branch == lfence_branch_none) | |
4709 | return; | |
4710 | ||
4711 | if (i.operands != 1) | |
4712 | abort (); | |
4713 | ||
4714 | if (i.reg_operands == 1) | |
4715 | { | |
4716 | /* Indirect branch via register. Don't insert lfence with | |
4717 | -mlfence-after-load=yes. */ | |
4718 | if (lfence_after_load | |
4719 | || lfence_before_indirect_branch == lfence_branch_memory) | |
4720 | return; | |
4721 | } | |
4722 | else if (i.mem_operands == 1 | |
4723 | && lfence_before_indirect_branch != lfence_branch_register) | |
4724 | { | |
4725 | as_warn (_("indirect `%s` with memory operand should be avoided"), | |
4726 | i.tm.name); | |
4727 | return; | |
4728 | } | |
4729 | else | |
4730 | return; | |
4731 | ||
4732 | if (last_insn.kind != last_insn_other | |
4733 | && last_insn.seg == now_seg) | |
4734 | { | |
4735 | as_warn_where (last_insn.file, last_insn.line, | |
4736 | _("`%s` skips -mlfence-before-indirect-branch on `%s`"), | |
4737 | last_insn.name, i.tm.name); | |
4738 | return; | |
4739 | } | |
4740 | ||
4741 | p = frag_more (3); | |
4742 | *p++ = 0xf; | |
4743 | *p++ = 0xae; | |
4744 | *p = 0xe8; | |
4745 | return; | |
4746 | } | |
4747 | ||
503648e4 | 4748 | /* Output or/not/shl and lfence before near ret. */ |
ae531041 L |
4749 | if (lfence_before_ret != lfence_before_ret_none |
4750 | && (i.tm.base_opcode == 0xc2 | |
503648e4 | 4751 | || i.tm.base_opcode == 0xc3)) |
ae531041 L |
4752 | { |
4753 | if (last_insn.kind != last_insn_other | |
4754 | && last_insn.seg == now_seg) | |
4755 | { | |
4756 | as_warn_where (last_insn.file, last_insn.line, | |
4757 | _("`%s` skips -mlfence-before-ret on `%s`"), | |
4758 | last_insn.name, i.tm.name); | |
4759 | return; | |
4760 | } | |
a09f656b | 4761 | |
a09f656b | 4762 | /* Near ret ingore operand size override under CPU64. */ |
503648e4 | 4763 | char prefix = flag_code == CODE_64BIT |
4764 | ? 0x48 | |
4765 | : i.prefix[DATA_PREFIX] ? 0x66 : 0x0; | |
a09f656b | 4766 | |
4767 | if (lfence_before_ret == lfence_before_ret_not) | |
4768 | { | |
4769 | /* not: 0xf71424, may add prefix | |
4770 | for operand size override or 64-bit code. */ | |
4771 | p = frag_more ((prefix ? 2 : 0) + 6 + 3); | |
4772 | if (prefix) | |
4773 | *p++ = prefix; | |
ae531041 L |
4774 | *p++ = 0xf7; |
4775 | *p++ = 0x14; | |
4776 | *p++ = 0x24; | |
a09f656b | 4777 | if (prefix) |
4778 | *p++ = prefix; | |
ae531041 L |
4779 | *p++ = 0xf7; |
4780 | *p++ = 0x14; | |
4781 | *p++ = 0x24; | |
4782 | } | |
a09f656b | 4783 | else |
4784 | { | |
4785 | p = frag_more ((prefix ? 1 : 0) + 4 + 3); | |
4786 | if (prefix) | |
4787 | *p++ = prefix; | |
4788 | if (lfence_before_ret == lfence_before_ret_or) | |
4789 | { | |
4790 | /* or: 0x830c2400, may add prefix | |
4791 | for operand size override or 64-bit code. */ | |
4792 | *p++ = 0x83; | |
4793 | *p++ = 0x0c; | |
4794 | } | |
4795 | else | |
4796 | { | |
4797 | /* shl: 0xc1242400, may add prefix | |
4798 | for operand size override or 64-bit code. */ | |
4799 | *p++ = 0xc1; | |
4800 | *p++ = 0x24; | |
4801 | } | |
4802 | ||
4803 | *p++ = 0x24; | |
4804 | *p++ = 0x0; | |
4805 | } | |
4806 | ||
ae531041 L |
4807 | *p++ = 0xf; |
4808 | *p++ = 0xae; | |
4809 | *p = 0xe8; | |
4810 | } | |
4811 | } | |
4812 | ||
252b5132 RH |
4813 | /* This is the guts of the machine-dependent assembler. LINE points to a |
4814 | machine dependent instruction. This function is supposed to emit | |
4815 | the frags/bytes it assembles to. */ | |
4816 | ||
4817 | void | |
65da13b5 | 4818 | md_assemble (char *line) |
252b5132 | 4819 | { |
40fb9820 | 4820 | unsigned int j; |
83b16ac6 | 4821 | char mnemonic[MAX_MNEM_SIZE], mnem_suffix; |
d3ce72d0 | 4822 | const insn_template *t; |
252b5132 | 4823 | |
47926f60 | 4824 | /* Initialize globals. */ |
252b5132 | 4825 | memset (&i, '\0', sizeof (i)); |
ca5312a2 | 4826 | i.rounding.type = rc_none; |
252b5132 | 4827 | for (j = 0; j < MAX_OPERANDS; j++) |
1ae12ab7 | 4828 | i.reloc[j] = NO_RELOC; |
252b5132 RH |
4829 | memset (disp_expressions, '\0', sizeof (disp_expressions)); |
4830 | memset (im_expressions, '\0', sizeof (im_expressions)); | |
ce8a8b2f | 4831 | save_stack_p = save_stack; |
252b5132 RH |
4832 | |
4833 | /* First parse an instruction mnemonic & call i386_operand for the operands. | |
4834 | We assume that the scrubber has arranged it so that line[0] is the valid | |
47926f60 | 4835 | start of a (possibly prefixed) mnemonic. */ |
252b5132 | 4836 | |
29b0f896 AM |
4837 | line = parse_insn (line, mnemonic); |
4838 | if (line == NULL) | |
4839 | return; | |
83b16ac6 | 4840 | mnem_suffix = i.suffix; |
252b5132 | 4841 | |
29b0f896 | 4842 | line = parse_operands (line, mnemonic); |
ee86248c | 4843 | this_operand = -1; |
8325cc63 JB |
4844 | xfree (i.memop1_string); |
4845 | i.memop1_string = NULL; | |
29b0f896 AM |
4846 | if (line == NULL) |
4847 | return; | |
252b5132 | 4848 | |
29b0f896 AM |
4849 | /* Now we've parsed the mnemonic into a set of templates, and have the |
4850 | operands at hand. */ | |
4851 | ||
b630c145 | 4852 | /* All Intel opcodes have reversed operands except for "bound", "enter", |
c0e54661 JB |
4853 | "invlpg*", "monitor*", "mwait*", "tpause", "umwait", "pvalidate", |
4854 | "rmpadjust", and "rmpupdate". We also don't reverse intersegment "jmp" | |
4855 | and "call" instructions with 2 immediate operands so that the immediate | |
4856 | segment precedes the offset consistently in Intel and AT&T modes. */ | |
4d456e3d L |
4857 | if (intel_syntax |
4858 | && i.operands > 1 | |
29b0f896 | 4859 | && (strcmp (mnemonic, "bound") != 0) |
c0e54661 | 4860 | && (strncmp (mnemonic, "invlpg", 6) != 0) |
d34049e8 ML |
4861 | && !startswith (mnemonic, "monitor") |
4862 | && !startswith (mnemonic, "mwait") | |
c0e54661 | 4863 | && (strcmp (mnemonic, "pvalidate") != 0) |
d34049e8 | 4864 | && !startswith (mnemonic, "rmp") |
b630c145 JB |
4865 | && (strcmp (mnemonic, "tpause") != 0) |
4866 | && (strcmp (mnemonic, "umwait") != 0) | |
40fb9820 L |
4867 | && !(operand_type_check (i.types[0], imm) |
4868 | && operand_type_check (i.types[1], imm))) | |
29b0f896 AM |
4869 | swap_operands (); |
4870 | ||
ec56d5c0 JB |
4871 | /* The order of the immediates should be reversed |
4872 | for 2 immediates extrq and insertq instructions */ | |
4873 | if (i.imm_operands == 2 | |
4874 | && (strcmp (mnemonic, "extrq") == 0 | |
4875 | || strcmp (mnemonic, "insertq") == 0)) | |
4876 | swap_2_operands (0, 1); | |
4877 | ||
29b0f896 AM |
4878 | if (i.imm_operands) |
4879 | optimize_imm (); | |
4880 | ||
9386188e JB |
4881 | if (i.disp_operands && !want_disp32 (current_templates->start) |
4882 | && (!current_templates->start->opcode_modifier.jump | |
4883 | || i.jumpabsolute || i.types[0].bitfield.baseindex)) | |
cce08655 JB |
4884 | { |
4885 | for (j = 0; j < i.operands; ++j) | |
4886 | { | |
4887 | const expressionS *exp = i.op[j].disps; | |
4888 | ||
4889 | if (!operand_type_check (i.types[j], disp)) | |
4890 | continue; | |
4891 | ||
4892 | if (exp->X_op != O_constant) | |
4893 | continue; | |
4894 | ||
4895 | /* Since displacement is signed extended to 64bit, don't allow | |
a775efc8 | 4896 | disp32 if it is out of range. */ |
cce08655 JB |
4897 | if (fits_in_signed_long (exp->X_add_number)) |
4898 | continue; | |
4899 | ||
a775efc8 | 4900 | i.types[j].bitfield.disp32 = 0; |
cce08655 JB |
4901 | if (i.types[j].bitfield.baseindex) |
4902 | { | |
f493c217 AM |
4903 | as_bad (_("0x%" PRIx64 " out of range of signed 32bit displacement"), |
4904 | (uint64_t) exp->X_add_number); | |
cce08655 JB |
4905 | return; |
4906 | } | |
4907 | } | |
4908 | } | |
4909 | ||
b300c311 L |
4910 | /* Don't optimize displacement for movabs since it only takes 64bit |
4911 | displacement. */ | |
4912 | if (i.disp_operands | |
1a42a9fe | 4913 | && i.disp_encoding <= disp_encoding_8bit |
862be3fb L |
4914 | && (flag_code != CODE_64BIT |
4915 | || strcmp (mnemonic, "movabs") != 0)) | |
4916 | optimize_disp (); | |
29b0f896 AM |
4917 | |
4918 | /* Next, we find a template that matches the given insn, | |
4919 | making sure the overlap of the given operands types is consistent | |
4920 | with the template operand types. */ | |
252b5132 | 4921 | |
83b16ac6 | 4922 | if (!(t = match_template (mnem_suffix))) |
29b0f896 | 4923 | return; |
252b5132 | 4924 | |
7bab8ab5 | 4925 | if (sse_check != check_none |
ffb86450 JB |
4926 | /* The opcode space check isn't strictly needed; it's there only to |
4927 | bypass the logic below when easily possible. */ | |
4928 | && t->opcode_modifier.opcodespace >= SPACE_0F | |
4929 | && t->opcode_modifier.opcodespace <= SPACE_0F3A | |
4930 | && !i.tm.cpu_flags.bitfield.cpusse4a | |
4931 | && !is_any_vex_encoding (t)) | |
daf50ae7 | 4932 | { |
ffb86450 JB |
4933 | bool simd = false; |
4934 | ||
4935 | for (j = 0; j < t->operands; ++j) | |
4936 | { | |
4937 | if (t->operand_types[j].bitfield.class == RegMMX) | |
4938 | break; | |
4939 | if (t->operand_types[j].bitfield.class == RegSIMD) | |
4940 | simd = true; | |
4941 | } | |
4942 | ||
4943 | if (j >= t->operands && simd) | |
4944 | (sse_check == check_warning | |
4945 | ? as_warn | |
4946 | : as_bad) (_("SSE instruction `%s' is used"), i.tm.name); | |
daf50ae7 L |
4947 | } |
4948 | ||
40fb9820 | 4949 | if (i.tm.opcode_modifier.fwait) |
29b0f896 AM |
4950 | if (!add_prefix (FWAIT_OPCODE)) |
4951 | return; | |
252b5132 | 4952 | |
d5de92cf | 4953 | /* Check if REP prefix is OK. */ |
742732c7 | 4954 | if (i.rep_prefix && i.tm.opcode_modifier.prefixok != PrefixRep) |
d5de92cf L |
4955 | { |
4956 | as_bad (_("invalid instruction `%s' after `%s'"), | |
4957 | i.tm.name, i.rep_prefix); | |
4958 | return; | |
4959 | } | |
4960 | ||
c1ba0266 L |
4961 | /* Check for lock without a lockable instruction. Destination operand |
4962 | must be memory unless it is xchg (0x86). */ | |
c32fa91d | 4963 | if (i.prefix[LOCK_PREFIX] |
742732c7 | 4964 | && (i.tm.opcode_modifier.prefixok < PrefixLock |
c1ba0266 L |
4965 | || i.mem_operands == 0 |
4966 | || (i.tm.base_opcode != 0x86 | |
8dc0818e | 4967 | && !(i.flags[i.operands - 1] & Operand_Mem)))) |
c32fa91d L |
4968 | { |
4969 | as_bad (_("expecting lockable instruction after `lock'")); | |
4970 | return; | |
4971 | } | |
4972 | ||
40d231b4 JB |
4973 | /* Check for data size prefix on VEX/XOP/EVEX encoded and SIMD insns. */ |
4974 | if (i.prefix[DATA_PREFIX] | |
4975 | && (is_any_vex_encoding (&i.tm) | |
4976 | || i.tm.operand_types[i.imm_operands].bitfield.class >= RegMMX | |
4977 | || i.tm.operand_types[i.imm_operands + 1].bitfield.class >= RegMMX)) | |
7a8655d2 JB |
4978 | { |
4979 | as_bad (_("data size prefix invalid with `%s'"), i.tm.name); | |
4980 | return; | |
4981 | } | |
4982 | ||
42164a71 | 4983 | /* Check if HLE prefix is OK. */ |
165de32a | 4984 | if (i.hle_prefix && !check_hle ()) |
42164a71 L |
4985 | return; |
4986 | ||
7e8b059b L |
4987 | /* Check BND prefix. */ |
4988 | if (i.bnd_prefix && !i.tm.opcode_modifier.bndprefixok) | |
4989 | as_bad (_("expecting valid branch instruction after `bnd'")); | |
4990 | ||
04ef582a | 4991 | /* Check NOTRACK prefix. */ |
742732c7 | 4992 | if (i.notrack_prefix && i.tm.opcode_modifier.prefixok != PrefixNoTrack) |
9fef80d6 | 4993 | as_bad (_("expecting indirect branch instruction after `notrack'")); |
04ef582a | 4994 | |
327e8c42 JB |
4995 | if (i.tm.cpu_flags.bitfield.cpumpx) |
4996 | { | |
4997 | if (flag_code == CODE_64BIT && i.prefix[ADDR_PREFIX]) | |
4998 | as_bad (_("32-bit address isn't allowed in 64-bit MPX instructions.")); | |
4999 | else if (flag_code != CODE_16BIT | |
5000 | ? i.prefix[ADDR_PREFIX] | |
5001 | : i.mem_operands && !i.prefix[ADDR_PREFIX]) | |
5002 | as_bad (_("16-bit address isn't allowed in MPX instructions")); | |
5003 | } | |
7e8b059b L |
5004 | |
5005 | /* Insert BND prefix. */ | |
76d3a78a JB |
5006 | if (add_bnd_prefix && i.tm.opcode_modifier.bndprefixok) |
5007 | { | |
5008 | if (!i.prefix[BND_PREFIX]) | |
5009 | add_prefix (BND_PREFIX_OPCODE); | |
5010 | else if (i.prefix[BND_PREFIX] != BND_PREFIX_OPCODE) | |
5011 | { | |
5012 | as_warn (_("replacing `rep'/`repe' prefix by `bnd'")); | |
5013 | i.prefix[BND_PREFIX] = BND_PREFIX_OPCODE; | |
5014 | } | |
5015 | } | |
7e8b059b | 5016 | |
29b0f896 | 5017 | /* Check string instruction segment overrides. */ |
51c8edf6 | 5018 | if (i.tm.opcode_modifier.isstring >= IS_STRING_ES_OP0) |
29b0f896 | 5019 | { |
51c8edf6 | 5020 | gas_assert (i.mem_operands); |
29b0f896 | 5021 | if (!check_string ()) |
5dd0794d | 5022 | return; |
fc0763e6 | 5023 | i.disp_operands = 0; |
29b0f896 | 5024 | } |
5dd0794d | 5025 | |
b6f8c7c4 L |
5026 | if (optimize && !i.no_optimize && i.tm.opcode_modifier.optimize) |
5027 | optimize_encoding (); | |
5028 | ||
c8480b58 L |
5029 | if (use_unaligned_vector_move) |
5030 | encode_with_unaligned_vector_move (); | |
5031 | ||
29b0f896 AM |
5032 | if (!process_suffix ()) |
5033 | return; | |
e413e4e9 | 5034 | |
921eafea | 5035 | /* Update operand types and check extended states. */ |
bc0844ae | 5036 | for (j = 0; j < i.operands; j++) |
921eafea L |
5037 | { |
5038 | i.types[j] = operand_type_and (i.types[j], i.tm.operand_types[j]); | |
3d70986f | 5039 | switch (i.tm.operand_types[j].bitfield.class) |
921eafea L |
5040 | { |
5041 | default: | |
5042 | break; | |
5043 | case RegMMX: | |
5044 | i.xstate |= xstate_mmx; | |
5045 | break; | |
5046 | case RegMask: | |
32930e4e | 5047 | i.xstate |= xstate_mask; |
921eafea L |
5048 | break; |
5049 | case RegSIMD: | |
3d70986f | 5050 | if (i.tm.operand_types[j].bitfield.tmmword) |
921eafea | 5051 | i.xstate |= xstate_tmm; |
3d70986f | 5052 | else if (i.tm.operand_types[j].bitfield.zmmword) |
921eafea | 5053 | i.xstate |= xstate_zmm; |
3d70986f | 5054 | else if (i.tm.operand_types[j].bitfield.ymmword) |
921eafea | 5055 | i.xstate |= xstate_ymm; |
3d70986f | 5056 | else if (i.tm.operand_types[j].bitfield.xmmword) |
921eafea L |
5057 | i.xstate |= xstate_xmm; |
5058 | break; | |
5059 | } | |
5060 | } | |
bc0844ae | 5061 | |
29b0f896 AM |
5062 | /* Make still unresolved immediate matches conform to size of immediate |
5063 | given in i.suffix. */ | |
5064 | if (!finalize_imm ()) | |
5065 | return; | |
252b5132 | 5066 | |
40fb9820 | 5067 | if (i.types[0].bitfield.imm1) |
29b0f896 | 5068 | i.imm_operands = 0; /* kludge for shift insns. */ |
252b5132 | 5069 | |
9afe6eb8 L |
5070 | /* We only need to check those implicit registers for instructions |
5071 | with 3 operands or less. */ | |
5072 | if (i.operands <= 3) | |
5073 | for (j = 0; j < i.operands; j++) | |
75e5731b JB |
5074 | if (i.types[j].bitfield.instance != InstanceNone |
5075 | && !i.types[j].bitfield.xmmword) | |
9afe6eb8 | 5076 | i.reg_operands--; |
40fb9820 | 5077 | |
29b0f896 AM |
5078 | /* For insns with operands there are more diddles to do to the opcode. */ |
5079 | if (i.operands) | |
5080 | { | |
5081 | if (!process_operands ()) | |
5082 | return; | |
5083 | } | |
8c190ce0 | 5084 | else if (!quiet_warnings && i.tm.opcode_modifier.ugh) |
29b0f896 AM |
5085 | { |
5086 | /* UnixWare fsub no args is alias for fsubp, fadd -> faddp, etc. */ | |
5087 | as_warn (_("translating to `%sp'"), i.tm.name); | |
5088 | } | |
252b5132 | 5089 | |
7a8655d2 | 5090 | if (is_any_vex_encoding (&i.tm)) |
9e5e5283 | 5091 | { |
c1dc7af5 | 5092 | if (!cpu_arch_flags.bitfield.cpui286) |
9e5e5283 | 5093 | { |
c1dc7af5 | 5094 | as_bad (_("instruction `%s' isn't supported outside of protected mode."), |
9e5e5283 L |
5095 | i.tm.name); |
5096 | return; | |
5097 | } | |
c0f3af97 | 5098 | |
0b9404fd JB |
5099 | /* Check for explicit REX prefix. */ |
5100 | if (i.prefix[REX_PREFIX] || i.rex_encoding) | |
5101 | { | |
5102 | as_bad (_("REX prefix invalid with `%s'"), i.tm.name); | |
5103 | return; | |
5104 | } | |
5105 | ||
9e5e5283 L |
5106 | if (i.tm.opcode_modifier.vex) |
5107 | build_vex_prefix (t); | |
5108 | else | |
5109 | build_evex_prefix (); | |
0b9404fd JB |
5110 | |
5111 | /* The individual REX.RXBW bits got consumed. */ | |
5112 | i.rex &= REX_OPCODE; | |
9e5e5283 | 5113 | } |
43234a1e | 5114 | |
5dd85c99 SP |
5115 | /* Handle conversion of 'int $3' --> special int3 insn. XOP or FMA4 |
5116 | instructions may define INT_OPCODE as well, so avoid this corner | |
5117 | case for those instructions that use MODRM. */ | |
389d00a5 JB |
5118 | if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
5119 | && i.tm.base_opcode == INT_OPCODE | |
a6461c02 SP |
5120 | && !i.tm.opcode_modifier.modrm |
5121 | && i.op[0].imms->X_add_number == 3) | |
29b0f896 AM |
5122 | { |
5123 | i.tm.base_opcode = INT3_OPCODE; | |
5124 | i.imm_operands = 0; | |
5125 | } | |
252b5132 | 5126 | |
0cfa3eb3 JB |
5127 | if ((i.tm.opcode_modifier.jump == JUMP |
5128 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
5129 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 AM |
5130 | && i.op[0].disps->X_op == O_constant) |
5131 | { | |
5132 | /* Convert "jmp constant" (and "call constant") to a jump (call) to | |
5133 | the absolute address given by the constant. Since ix86 jumps and | |
5134 | calls are pc relative, we need to generate a reloc. */ | |
5135 | i.op[0].disps->X_add_symbol = &abs_symbol; | |
5136 | i.op[0].disps->X_op = O_symbol; | |
5137 | } | |
252b5132 | 5138 | |
29b0f896 AM |
5139 | /* For 8 bit registers we need an empty rex prefix. Also if the |
5140 | instruction already has a prefix, we need to convert old | |
5141 | registers to new ones. */ | |
773f551c | 5142 | |
bab6aec1 | 5143 | if ((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte |
29b0f896 | 5144 | && (i.op[0].regs->reg_flags & RegRex64) != 0) |
bab6aec1 | 5145 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte |
29b0f896 | 5146 | && (i.op[1].regs->reg_flags & RegRex64) != 0) |
bab6aec1 JB |
5147 | || (((i.types[0].bitfield.class == Reg && i.types[0].bitfield.byte) |
5148 | || (i.types[1].bitfield.class == Reg && i.types[1].bitfield.byte)) | |
29b0f896 AM |
5149 | && i.rex != 0)) |
5150 | { | |
5151 | int x; | |
726c5dcd | 5152 | |
29b0f896 AM |
5153 | i.rex |= REX_OPCODE; |
5154 | for (x = 0; x < 2; x++) | |
5155 | { | |
5156 | /* Look for 8 bit operand that uses old registers. */ | |
bab6aec1 | 5157 | if (i.types[x].bitfield.class == Reg && i.types[x].bitfield.byte |
29b0f896 | 5158 | && (i.op[x].regs->reg_flags & RegRex64) == 0) |
773f551c | 5159 | { |
3f93af61 | 5160 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
29b0f896 AM |
5161 | /* In case it is "hi" register, give up. */ |
5162 | if (i.op[x].regs->reg_num > 3) | |
a540244d | 5163 | as_bad (_("can't encode register '%s%s' in an " |
4eed87de | 5164 | "instruction requiring REX prefix."), |
a540244d | 5165 | register_prefix, i.op[x].regs->reg_name); |
773f551c | 5166 | |
29b0f896 AM |
5167 | /* Otherwise it is equivalent to the extended register. |
5168 | Since the encoding doesn't change this is merely | |
5169 | cosmetic cleanup for debug output. */ | |
5170 | ||
5171 | i.op[x].regs = i.op[x].regs + 8; | |
773f551c | 5172 | } |
29b0f896 AM |
5173 | } |
5174 | } | |
773f551c | 5175 | |
6b6b6807 L |
5176 | if (i.rex == 0 && i.rex_encoding) |
5177 | { | |
5178 | /* Check if we can add a REX_OPCODE byte. Look for 8 bit operand | |
3f93af61 | 5179 | that uses legacy register. If it is "hi" register, don't add |
6b6b6807 L |
5180 | the REX_OPCODE byte. */ |
5181 | int x; | |
5182 | for (x = 0; x < 2; x++) | |
bab6aec1 | 5183 | if (i.types[x].bitfield.class == Reg |
6b6b6807 L |
5184 | && i.types[x].bitfield.byte |
5185 | && (i.op[x].regs->reg_flags & RegRex64) == 0 | |
5186 | && i.op[x].regs->reg_num > 3) | |
5187 | { | |
3f93af61 | 5188 | gas_assert (!(i.op[x].regs->reg_flags & RegRex)); |
5b7c81bd | 5189 | i.rex_encoding = false; |
6b6b6807 L |
5190 | break; |
5191 | } | |
5192 | ||
5193 | if (i.rex_encoding) | |
5194 | i.rex = REX_OPCODE; | |
5195 | } | |
5196 | ||
7ab9ffdd | 5197 | if (i.rex != 0) |
29b0f896 AM |
5198 | add_prefix (REX_OPCODE | i.rex); |
5199 | ||
ae531041 L |
5200 | insert_lfence_before (); |
5201 | ||
29b0f896 AM |
5202 | /* We are ready to output the insn. */ |
5203 | output_insn (); | |
e379e5f3 | 5204 | |
ae531041 L |
5205 | insert_lfence_after (); |
5206 | ||
e379e5f3 L |
5207 | last_insn.seg = now_seg; |
5208 | ||
5209 | if (i.tm.opcode_modifier.isprefix) | |
5210 | { | |
5211 | last_insn.kind = last_insn_prefix; | |
5212 | last_insn.name = i.tm.name; | |
5213 | last_insn.file = as_where (&last_insn.line); | |
5214 | } | |
5215 | else | |
5216 | last_insn.kind = last_insn_other; | |
29b0f896 AM |
5217 | } |
5218 | ||
5219 | static char * | |
e3bb37b5 | 5220 | parse_insn (char *line, char *mnemonic) |
29b0f896 AM |
5221 | { |
5222 | char *l = line; | |
5223 | char *token_start = l; | |
5224 | char *mnem_p; | |
5c6af06e | 5225 | int supported; |
d3ce72d0 | 5226 | const insn_template *t; |
b6169b20 | 5227 | char *dot_p = NULL; |
29b0f896 | 5228 | |
29b0f896 AM |
5229 | while (1) |
5230 | { | |
5231 | mnem_p = mnemonic; | |
5232 | while ((*mnem_p = mnemonic_chars[(unsigned char) *l]) != 0) | |
5233 | { | |
b6169b20 L |
5234 | if (*mnem_p == '.') |
5235 | dot_p = mnem_p; | |
29b0f896 AM |
5236 | mnem_p++; |
5237 | if (mnem_p >= mnemonic + MAX_MNEM_SIZE) | |
45288df1 | 5238 | { |
29b0f896 AM |
5239 | as_bad (_("no such instruction: `%s'"), token_start); |
5240 | return NULL; | |
5241 | } | |
5242 | l++; | |
5243 | } | |
5244 | if (!is_space_char (*l) | |
5245 | && *l != END_OF_INSN | |
e44823cf JB |
5246 | && (intel_syntax |
5247 | || (*l != PREFIX_SEPARATOR | |
5248 | && *l != ','))) | |
29b0f896 AM |
5249 | { |
5250 | as_bad (_("invalid character %s in mnemonic"), | |
5251 | output_invalid (*l)); | |
5252 | return NULL; | |
5253 | } | |
5254 | if (token_start == l) | |
5255 | { | |
e44823cf | 5256 | if (!intel_syntax && *l == PREFIX_SEPARATOR) |
29b0f896 AM |
5257 | as_bad (_("expecting prefix; got nothing")); |
5258 | else | |
5259 | as_bad (_("expecting mnemonic; got nothing")); | |
5260 | return NULL; | |
5261 | } | |
45288df1 | 5262 | |
29b0f896 | 5263 | /* Look up instruction (or prefix) via hash table. */ |
629310ab | 5264 | current_templates = (const templates *) str_hash_find (op_hash, mnemonic); |
47926f60 | 5265 | |
29b0f896 AM |
5266 | if (*l != END_OF_INSN |
5267 | && (!is_space_char (*l) || l[1] != END_OF_INSN) | |
5268 | && current_templates | |
40fb9820 | 5269 | && current_templates->start->opcode_modifier.isprefix) |
29b0f896 | 5270 | { |
c6fb90c8 | 5271 | if (!cpu_flags_check_cpu64 (current_templates->start->cpu_flags)) |
2dd88dca JB |
5272 | { |
5273 | as_bad ((flag_code != CODE_64BIT | |
5274 | ? _("`%s' is only supported in 64-bit mode") | |
5275 | : _("`%s' is not supported in 64-bit mode")), | |
5276 | current_templates->start->name); | |
5277 | return NULL; | |
5278 | } | |
29b0f896 AM |
5279 | /* If we are in 16-bit mode, do not allow addr16 or data16. |
5280 | Similarly, in 32-bit mode, do not allow addr32 or data32. */ | |
673fe0f0 JB |
5281 | if ((current_templates->start->opcode_modifier.size == SIZE16 |
5282 | || current_templates->start->opcode_modifier.size == SIZE32) | |
29b0f896 | 5283 | && flag_code != CODE_64BIT |
673fe0f0 | 5284 | && ((current_templates->start->opcode_modifier.size == SIZE32) |
29b0f896 AM |
5285 | ^ (flag_code == CODE_16BIT))) |
5286 | { | |
5287 | as_bad (_("redundant %s prefix"), | |
5288 | current_templates->start->name); | |
5289 | return NULL; | |
45288df1 | 5290 | } |
31184569 JB |
5291 | |
5292 | if (current_templates->start->base_opcode == PSEUDO_PREFIX) | |
29b0f896 | 5293 | { |
86fa6981 | 5294 | /* Handle pseudo prefixes. */ |
31184569 | 5295 | switch (current_templates->start->extension_opcode) |
86fa6981 | 5296 | { |
41eb8e88 | 5297 | case Prefix_Disp8: |
86fa6981 L |
5298 | /* {disp8} */ |
5299 | i.disp_encoding = disp_encoding_8bit; | |
5300 | break; | |
41eb8e88 L |
5301 | case Prefix_Disp16: |
5302 | /* {disp16} */ | |
5303 | i.disp_encoding = disp_encoding_16bit; | |
5304 | break; | |
5305 | case Prefix_Disp32: | |
86fa6981 L |
5306 | /* {disp32} */ |
5307 | i.disp_encoding = disp_encoding_32bit; | |
5308 | break; | |
41eb8e88 | 5309 | case Prefix_Load: |
86fa6981 L |
5310 | /* {load} */ |
5311 | i.dir_encoding = dir_encoding_load; | |
5312 | break; | |
41eb8e88 | 5313 | case Prefix_Store: |
86fa6981 L |
5314 | /* {store} */ |
5315 | i.dir_encoding = dir_encoding_store; | |
5316 | break; | |
41eb8e88 | 5317 | case Prefix_VEX: |
42e04b36 L |
5318 | /* {vex} */ |
5319 | i.vec_encoding = vex_encoding_vex; | |
86fa6981 | 5320 | break; |
41eb8e88 | 5321 | case Prefix_VEX3: |
86fa6981 L |
5322 | /* {vex3} */ |
5323 | i.vec_encoding = vex_encoding_vex3; | |
5324 | break; | |
41eb8e88 | 5325 | case Prefix_EVEX: |
86fa6981 L |
5326 | /* {evex} */ |
5327 | i.vec_encoding = vex_encoding_evex; | |
5328 | break; | |
41eb8e88 | 5329 | case Prefix_REX: |
6b6b6807 | 5330 | /* {rex} */ |
5b7c81bd | 5331 | i.rex_encoding = true; |
6b6b6807 | 5332 | break; |
41eb8e88 | 5333 | case Prefix_NoOptimize: |
b6f8c7c4 | 5334 | /* {nooptimize} */ |
5b7c81bd | 5335 | i.no_optimize = true; |
b6f8c7c4 | 5336 | break; |
86fa6981 L |
5337 | default: |
5338 | abort (); | |
5339 | } | |
5340 | } | |
5341 | else | |
5342 | { | |
5343 | /* Add prefix, checking for repeated prefixes. */ | |
4e9ac44a | 5344 | switch (add_prefix (current_templates->start->base_opcode)) |
86fa6981 | 5345 | { |
4e9ac44a L |
5346 | case PREFIX_EXIST: |
5347 | return NULL; | |
5348 | case PREFIX_DS: | |
d777820b | 5349 | if (current_templates->start->cpu_flags.bitfield.cpuibt) |
4e9ac44a L |
5350 | i.notrack_prefix = current_templates->start->name; |
5351 | break; | |
5352 | case PREFIX_REP: | |
5353 | if (current_templates->start->cpu_flags.bitfield.cpuhle) | |
5354 | i.hle_prefix = current_templates->start->name; | |
5355 | else if (current_templates->start->cpu_flags.bitfield.cpumpx) | |
5356 | i.bnd_prefix = current_templates->start->name; | |
5357 | else | |
5358 | i.rep_prefix = current_templates->start->name; | |
5359 | break; | |
5360 | default: | |
5361 | break; | |
86fa6981 | 5362 | } |
29b0f896 AM |
5363 | } |
5364 | /* Skip past PREFIX_SEPARATOR and reset token_start. */ | |
5365 | token_start = ++l; | |
5366 | } | |
5367 | else | |
5368 | break; | |
5369 | } | |
45288df1 | 5370 | |
30a55f88 | 5371 | if (!current_templates) |
b6169b20 | 5372 | { |
07d5e953 JB |
5373 | /* Deprecated functionality (new code should use pseudo-prefixes instead): |
5374 | Check if we should swap operand or force 32bit displacement in | |
f8a5c266 | 5375 | encoding. */ |
30a55f88 | 5376 | if (mnem_p - 2 == dot_p && dot_p[1] == 's') |
64c49ab3 | 5377 | i.dir_encoding = dir_encoding_swap; |
8d63c93e | 5378 | else if (mnem_p - 3 == dot_p |
a501d77e L |
5379 | && dot_p[1] == 'd' |
5380 | && dot_p[2] == '8') | |
5381 | i.disp_encoding = disp_encoding_8bit; | |
8d63c93e | 5382 | else if (mnem_p - 4 == dot_p |
f8a5c266 L |
5383 | && dot_p[1] == 'd' |
5384 | && dot_p[2] == '3' | |
5385 | && dot_p[3] == '2') | |
a501d77e | 5386 | i.disp_encoding = disp_encoding_32bit; |
30a55f88 L |
5387 | else |
5388 | goto check_suffix; | |
5389 | mnem_p = dot_p; | |
5390 | *dot_p = '\0'; | |
629310ab | 5391 | current_templates = (const templates *) str_hash_find (op_hash, mnemonic); |
b6169b20 L |
5392 | } |
5393 | ||
29b0f896 AM |
5394 | if (!current_templates) |
5395 | { | |
dc1e8a47 | 5396 | check_suffix: |
1c529385 | 5397 | if (mnem_p > mnemonic) |
29b0f896 | 5398 | { |
1c529385 LH |
5399 | /* See if we can get a match by trimming off a suffix. */ |
5400 | switch (mnem_p[-1]) | |
29b0f896 | 5401 | { |
1c529385 LH |
5402 | case WORD_MNEM_SUFFIX: |
5403 | if (intel_syntax && (intel_float_operand (mnemonic) & 2)) | |
29b0f896 AM |
5404 | i.suffix = SHORT_MNEM_SUFFIX; |
5405 | else | |
1c529385 LH |
5406 | /* Fall through. */ |
5407 | case BYTE_MNEM_SUFFIX: | |
5408 | case QWORD_MNEM_SUFFIX: | |
5409 | i.suffix = mnem_p[-1]; | |
29b0f896 | 5410 | mnem_p[-1] = '\0'; |
fe0e921f AM |
5411 | current_templates |
5412 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5413 | break; |
5414 | case SHORT_MNEM_SUFFIX: | |
5415 | case LONG_MNEM_SUFFIX: | |
5416 | if (!intel_syntax) | |
5417 | { | |
5418 | i.suffix = mnem_p[-1]; | |
5419 | mnem_p[-1] = '\0'; | |
fe0e921f AM |
5420 | current_templates |
5421 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5422 | } |
5423 | break; | |
5424 | ||
5425 | /* Intel Syntax. */ | |
5426 | case 'd': | |
5427 | if (intel_syntax) | |
5428 | { | |
5429 | if (intel_float_operand (mnemonic) == 1) | |
5430 | i.suffix = SHORT_MNEM_SUFFIX; | |
5431 | else | |
5432 | i.suffix = LONG_MNEM_SUFFIX; | |
5433 | mnem_p[-1] = '\0'; | |
fe0e921f AM |
5434 | current_templates |
5435 | = (const templates *) str_hash_find (op_hash, mnemonic); | |
1c529385 LH |
5436 | } |
5437 | break; | |
29b0f896 | 5438 | } |
29b0f896 | 5439 | } |
1c529385 | 5440 | |
29b0f896 AM |
5441 | if (!current_templates) |
5442 | { | |
5443 | as_bad (_("no such instruction: `%s'"), token_start); | |
5444 | return NULL; | |
5445 | } | |
5446 | } | |
252b5132 | 5447 | |
0cfa3eb3 JB |
5448 | if (current_templates->start->opcode_modifier.jump == JUMP |
5449 | || current_templates->start->opcode_modifier.jump == JUMP_BYTE) | |
29b0f896 AM |
5450 | { |
5451 | /* Check for a branch hint. We allow ",pt" and ",pn" for | |
5452 | predict taken and predict not taken respectively. | |
5453 | I'm not sure that branch hints actually do anything on loop | |
5454 | and jcxz insns (JumpByte) for current Pentium4 chips. They | |
5455 | may work in the future and it doesn't hurt to accept them | |
5456 | now. */ | |
5457 | if (l[0] == ',' && l[1] == 'p') | |
5458 | { | |
5459 | if (l[2] == 't') | |
5460 | { | |
5461 | if (!add_prefix (DS_PREFIX_OPCODE)) | |
5462 | return NULL; | |
5463 | l += 3; | |
5464 | } | |
5465 | else if (l[2] == 'n') | |
5466 | { | |
5467 | if (!add_prefix (CS_PREFIX_OPCODE)) | |
5468 | return NULL; | |
5469 | l += 3; | |
5470 | } | |
5471 | } | |
5472 | } | |
5473 | /* Any other comma loses. */ | |
5474 | if (*l == ',') | |
5475 | { | |
5476 | as_bad (_("invalid character %s in mnemonic"), | |
5477 | output_invalid (*l)); | |
5478 | return NULL; | |
5479 | } | |
252b5132 | 5480 | |
29b0f896 | 5481 | /* Check if instruction is supported on specified architecture. */ |
5c6af06e JB |
5482 | supported = 0; |
5483 | for (t = current_templates->start; t < current_templates->end; ++t) | |
5484 | { | |
c0f3af97 L |
5485 | supported |= cpu_flags_match (t); |
5486 | if (supported == CPU_FLAGS_PERFECT_MATCH) | |
d59a54c2 | 5487 | return l; |
29b0f896 | 5488 | } |
3629bb00 | 5489 | |
548d0ee6 JB |
5490 | if (!(supported & CPU_FLAGS_64BIT_MATCH)) |
5491 | as_bad (flag_code == CODE_64BIT | |
5492 | ? _("`%s' is not supported in 64-bit mode") | |
5493 | : _("`%s' is only supported in 64-bit mode"), | |
5494 | current_templates->start->name); | |
5495 | else | |
5496 | as_bad (_("`%s' is not supported on `%s%s'"), | |
5497 | current_templates->start->name, | |
5498 | cpu_arch_name ? cpu_arch_name : default_arch, | |
5499 | cpu_sub_arch_name ? cpu_sub_arch_name : ""); | |
252b5132 | 5500 | |
548d0ee6 | 5501 | return NULL; |
29b0f896 | 5502 | } |
252b5132 | 5503 | |
29b0f896 | 5504 | static char * |
e3bb37b5 | 5505 | parse_operands (char *l, const char *mnemonic) |
29b0f896 AM |
5506 | { |
5507 | char *token_start; | |
3138f287 | 5508 | |
29b0f896 AM |
5509 | /* 1 if operand is pending after ','. */ |
5510 | unsigned int expecting_operand = 0; | |
252b5132 | 5511 | |
29b0f896 AM |
5512 | while (*l != END_OF_INSN) |
5513 | { | |
e68c3d59 JB |
5514 | /* Non-zero if operand parens not balanced. */ |
5515 | unsigned int paren_not_balanced = 0; | |
5516 | /* True if inside double quotes. */ | |
5517 | bool in_quotes = false; | |
5518 | ||
29b0f896 AM |
5519 | /* Skip optional white space before operand. */ |
5520 | if (is_space_char (*l)) | |
5521 | ++l; | |
d02603dc | 5522 | if (!is_operand_char (*l) && *l != END_OF_INSN && *l != '"') |
29b0f896 AM |
5523 | { |
5524 | as_bad (_("invalid character %s before operand %d"), | |
5525 | output_invalid (*l), | |
5526 | i.operands + 1); | |
5527 | return NULL; | |
5528 | } | |
d02603dc | 5529 | token_start = l; /* After white space. */ |
e68c3d59 | 5530 | while (in_quotes || paren_not_balanced || *l != ',') |
29b0f896 AM |
5531 | { |
5532 | if (*l == END_OF_INSN) | |
5533 | { | |
e68c3d59 JB |
5534 | if (in_quotes) |
5535 | { | |
5536 | as_bad (_("unbalanced double quotes in operand %d."), | |
5537 | i.operands + 1); | |
5538 | return NULL; | |
5539 | } | |
29b0f896 AM |
5540 | if (paren_not_balanced) |
5541 | { | |
98ff9f1c JB |
5542 | know (!intel_syntax); |
5543 | as_bad (_("unbalanced parenthesis in operand %d."), | |
5544 | i.operands + 1); | |
29b0f896 AM |
5545 | return NULL; |
5546 | } | |
5547 | else | |
5548 | break; /* we are done */ | |
5549 | } | |
e68c3d59 JB |
5550 | else if (*l == '\\' && l[1] == '"') |
5551 | ++l; | |
5552 | else if (*l == '"') | |
5553 | in_quotes = !in_quotes; | |
5554 | else if (!in_quotes && !is_operand_char (*l) && !is_space_char (*l)) | |
29b0f896 AM |
5555 | { |
5556 | as_bad (_("invalid character %s in operand %d"), | |
5557 | output_invalid (*l), | |
5558 | i.operands + 1); | |
5559 | return NULL; | |
5560 | } | |
e68c3d59 | 5561 | if (!intel_syntax && !in_quotes) |
29b0f896 AM |
5562 | { |
5563 | if (*l == '(') | |
5564 | ++paren_not_balanced; | |
5565 | if (*l == ')') | |
5566 | --paren_not_balanced; | |
5567 | } | |
29b0f896 AM |
5568 | l++; |
5569 | } | |
5570 | if (l != token_start) | |
5571 | { /* Yes, we've read in another operand. */ | |
5572 | unsigned int operand_ok; | |
5573 | this_operand = i.operands++; | |
5574 | if (i.operands > MAX_OPERANDS) | |
5575 | { | |
5576 | as_bad (_("spurious operands; (%d operands/instruction max)"), | |
5577 | MAX_OPERANDS); | |
5578 | return NULL; | |
5579 | } | |
9d46ce34 | 5580 | i.types[this_operand].bitfield.unspecified = 1; |
29b0f896 AM |
5581 | /* Now parse operand adding info to 'i' as we go along. */ |
5582 | END_STRING_AND_SAVE (l); | |
5583 | ||
1286ab78 L |
5584 | if (i.mem_operands > 1) |
5585 | { | |
5586 | as_bad (_("too many memory references for `%s'"), | |
5587 | mnemonic); | |
5588 | return 0; | |
5589 | } | |
5590 | ||
29b0f896 AM |
5591 | if (intel_syntax) |
5592 | operand_ok = | |
5593 | i386_intel_operand (token_start, | |
5594 | intel_float_operand (mnemonic)); | |
5595 | else | |
a7619375 | 5596 | operand_ok = i386_att_operand (token_start); |
29b0f896 AM |
5597 | |
5598 | RESTORE_END_STRING (l); | |
5599 | if (!operand_ok) | |
5600 | return NULL; | |
5601 | } | |
5602 | else | |
5603 | { | |
5604 | if (expecting_operand) | |
5605 | { | |
5606 | expecting_operand_after_comma: | |
5607 | as_bad (_("expecting operand after ','; got nothing")); | |
5608 | return NULL; | |
5609 | } | |
5610 | if (*l == ',') | |
5611 | { | |
5612 | as_bad (_("expecting operand before ','; got nothing")); | |
5613 | return NULL; | |
5614 | } | |
5615 | } | |
7f3f1ea2 | 5616 | |
29b0f896 AM |
5617 | /* Now *l must be either ',' or END_OF_INSN. */ |
5618 | if (*l == ',') | |
5619 | { | |
5620 | if (*++l == END_OF_INSN) | |
5621 | { | |
5622 | /* Just skip it, if it's \n complain. */ | |
5623 | goto expecting_operand_after_comma; | |
5624 | } | |
5625 | expecting_operand = 1; | |
5626 | } | |
5627 | } | |
5628 | return l; | |
5629 | } | |
7f3f1ea2 | 5630 | |
050dfa73 | 5631 | static void |
783c187b | 5632 | swap_2_operands (unsigned int xchg1, unsigned int xchg2) |
050dfa73 MM |
5633 | { |
5634 | union i386_op temp_op; | |
40fb9820 | 5635 | i386_operand_type temp_type; |
c48dadc9 | 5636 | unsigned int temp_flags; |
050dfa73 | 5637 | enum bfd_reloc_code_real temp_reloc; |
4eed87de | 5638 | |
050dfa73 MM |
5639 | temp_type = i.types[xchg2]; |
5640 | i.types[xchg2] = i.types[xchg1]; | |
5641 | i.types[xchg1] = temp_type; | |
c48dadc9 JB |
5642 | |
5643 | temp_flags = i.flags[xchg2]; | |
5644 | i.flags[xchg2] = i.flags[xchg1]; | |
5645 | i.flags[xchg1] = temp_flags; | |
5646 | ||
050dfa73 MM |
5647 | temp_op = i.op[xchg2]; |
5648 | i.op[xchg2] = i.op[xchg1]; | |
5649 | i.op[xchg1] = temp_op; | |
c48dadc9 | 5650 | |
050dfa73 MM |
5651 | temp_reloc = i.reloc[xchg2]; |
5652 | i.reloc[xchg2] = i.reloc[xchg1]; | |
5653 | i.reloc[xchg1] = temp_reloc; | |
43234a1e | 5654 | |
6225c532 | 5655 | if (i.mask.reg) |
43234a1e | 5656 | { |
6225c532 JB |
5657 | if (i.mask.operand == xchg1) |
5658 | i.mask.operand = xchg2; | |
5659 | else if (i.mask.operand == xchg2) | |
5660 | i.mask.operand = xchg1; | |
43234a1e | 5661 | } |
a5748e0d | 5662 | if (i.broadcast.type || i.broadcast.bytes) |
43234a1e | 5663 | { |
5273a3cd JB |
5664 | if (i.broadcast.operand == xchg1) |
5665 | i.broadcast.operand = xchg2; | |
5666 | else if (i.broadcast.operand == xchg2) | |
5667 | i.broadcast.operand = xchg1; | |
43234a1e | 5668 | } |
050dfa73 MM |
5669 | } |
5670 | ||
29b0f896 | 5671 | static void |
e3bb37b5 | 5672 | swap_operands (void) |
29b0f896 | 5673 | { |
b7c61d9a | 5674 | switch (i.operands) |
050dfa73 | 5675 | { |
c0f3af97 | 5676 | case 5: |
b7c61d9a | 5677 | case 4: |
4d456e3d | 5678 | swap_2_operands (1, i.operands - 2); |
1a0670f3 | 5679 | /* Fall through. */ |
b7c61d9a L |
5680 | case 3: |
5681 | case 2: | |
4d456e3d | 5682 | swap_2_operands (0, i.operands - 1); |
b7c61d9a L |
5683 | break; |
5684 | default: | |
5685 | abort (); | |
29b0f896 | 5686 | } |
29b0f896 AM |
5687 | |
5688 | if (i.mem_operands == 2) | |
5689 | { | |
5e042380 | 5690 | const reg_entry *temp_seg; |
29b0f896 AM |
5691 | temp_seg = i.seg[0]; |
5692 | i.seg[0] = i.seg[1]; | |
5693 | i.seg[1] = temp_seg; | |
5694 | } | |
5695 | } | |
252b5132 | 5696 | |
29b0f896 AM |
5697 | /* Try to ensure constant immediates are represented in the smallest |
5698 | opcode possible. */ | |
5699 | static void | |
e3bb37b5 | 5700 | optimize_imm (void) |
29b0f896 AM |
5701 | { |
5702 | char guess_suffix = 0; | |
5703 | int op; | |
252b5132 | 5704 | |
29b0f896 AM |
5705 | if (i.suffix) |
5706 | guess_suffix = i.suffix; | |
5707 | else if (i.reg_operands) | |
5708 | { | |
5709 | /* Figure out a suffix from the last register operand specified. | |
75e5731b JB |
5710 | We can't do this properly yet, i.e. excluding special register |
5711 | instances, but the following works for instructions with | |
5712 | immediates. In any case, we can't set i.suffix yet. */ | |
29b0f896 | 5713 | for (op = i.operands; --op >= 0;) |
bab6aec1 JB |
5714 | if (i.types[op].bitfield.class != Reg) |
5715 | continue; | |
5716 | else if (i.types[op].bitfield.byte) | |
7ab9ffdd | 5717 | { |
40fb9820 L |
5718 | guess_suffix = BYTE_MNEM_SUFFIX; |
5719 | break; | |
5720 | } | |
bab6aec1 | 5721 | else if (i.types[op].bitfield.word) |
252b5132 | 5722 | { |
40fb9820 L |
5723 | guess_suffix = WORD_MNEM_SUFFIX; |
5724 | break; | |
5725 | } | |
bab6aec1 | 5726 | else if (i.types[op].bitfield.dword) |
40fb9820 L |
5727 | { |
5728 | guess_suffix = LONG_MNEM_SUFFIX; | |
5729 | break; | |
5730 | } | |
bab6aec1 | 5731 | else if (i.types[op].bitfield.qword) |
40fb9820 L |
5732 | { |
5733 | guess_suffix = QWORD_MNEM_SUFFIX; | |
29b0f896 | 5734 | break; |
252b5132 | 5735 | } |
29b0f896 AM |
5736 | } |
5737 | else if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) | |
5738 | guess_suffix = WORD_MNEM_SUFFIX; | |
5739 | ||
5740 | for (op = i.operands; --op >= 0;) | |
40fb9820 | 5741 | if (operand_type_check (i.types[op], imm)) |
29b0f896 AM |
5742 | { |
5743 | switch (i.op[op].imms->X_op) | |
252b5132 | 5744 | { |
29b0f896 AM |
5745 | case O_constant: |
5746 | /* If a suffix is given, this operand may be shortened. */ | |
5747 | switch (guess_suffix) | |
252b5132 | 5748 | { |
29b0f896 | 5749 | case LONG_MNEM_SUFFIX: |
40fb9820 L |
5750 | i.types[op].bitfield.imm32 = 1; |
5751 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5752 | break; |
5753 | case WORD_MNEM_SUFFIX: | |
40fb9820 L |
5754 | i.types[op].bitfield.imm16 = 1; |
5755 | i.types[op].bitfield.imm32 = 1; | |
5756 | i.types[op].bitfield.imm32s = 1; | |
5757 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 AM |
5758 | break; |
5759 | case BYTE_MNEM_SUFFIX: | |
40fb9820 L |
5760 | i.types[op].bitfield.imm8 = 1; |
5761 | i.types[op].bitfield.imm8s = 1; | |
5762 | i.types[op].bitfield.imm16 = 1; | |
5763 | i.types[op].bitfield.imm32 = 1; | |
5764 | i.types[op].bitfield.imm32s = 1; | |
5765 | i.types[op].bitfield.imm64 = 1; | |
29b0f896 | 5766 | break; |
252b5132 | 5767 | } |
252b5132 | 5768 | |
29b0f896 AM |
5769 | /* If this operand is at most 16 bits, convert it |
5770 | to a signed 16 bit number before trying to see | |
5771 | whether it will fit in an even smaller size. | |
5772 | This allows a 16-bit operand such as $0xffe0 to | |
5773 | be recognised as within Imm8S range. */ | |
40fb9820 | 5774 | if ((i.types[op].bitfield.imm16) |
7e96fb68 | 5775 | && fits_in_unsigned_word (i.op[op].imms->X_add_number)) |
252b5132 | 5776 | { |
87ed972d JB |
5777 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number |
5778 | ^ 0x8000) - 0x8000); | |
29b0f896 | 5779 | } |
a28def75 L |
5780 | #ifdef BFD64 |
5781 | /* Store 32-bit immediate in 64-bit for 64-bit BFD. */ | |
40fb9820 | 5782 | if ((i.types[op].bitfield.imm32) |
7e96fb68 | 5783 | && fits_in_unsigned_long (i.op[op].imms->X_add_number)) |
29b0f896 AM |
5784 | { |
5785 | i.op[op].imms->X_add_number = ((i.op[op].imms->X_add_number | |
5786 | ^ ((offsetT) 1 << 31)) | |
5787 | - ((offsetT) 1 << 31)); | |
5788 | } | |
a28def75 | 5789 | #endif |
40fb9820 | 5790 | i.types[op] |
c6fb90c8 L |
5791 | = operand_type_or (i.types[op], |
5792 | smallest_imm_type (i.op[op].imms->X_add_number)); | |
252b5132 | 5793 | |
29b0f896 AM |
5794 | /* We must avoid matching of Imm32 templates when 64bit |
5795 | only immediate is available. */ | |
5796 | if (guess_suffix == QWORD_MNEM_SUFFIX) | |
40fb9820 | 5797 | i.types[op].bitfield.imm32 = 0; |
29b0f896 | 5798 | break; |
252b5132 | 5799 | |
29b0f896 AM |
5800 | case O_absent: |
5801 | case O_register: | |
5802 | abort (); | |
5803 | ||
5804 | /* Symbols and expressions. */ | |
5805 | default: | |
9cd96992 JB |
5806 | /* Convert symbolic operand to proper sizes for matching, but don't |
5807 | prevent matching a set of insns that only supports sizes other | |
5808 | than those matching the insn suffix. */ | |
5809 | { | |
40fb9820 | 5810 | i386_operand_type mask, allowed; |
87ed972d | 5811 | const insn_template *t = current_templates->start; |
9cd96992 | 5812 | |
0dfbf9d7 | 5813 | operand_type_set (&mask, 0); |
87ed972d | 5814 | allowed = t->operand_types[op]; |
40fb9820 | 5815 | |
87ed972d | 5816 | while (++t < current_templates->end) |
bab6aec1 | 5817 | { |
bab6aec1 | 5818 | allowed = operand_type_and (allowed, anyimm); |
87ed972d | 5819 | allowed = operand_type_or (allowed, t->operand_types[op]); |
bab6aec1 | 5820 | } |
9cd96992 JB |
5821 | switch (guess_suffix) |
5822 | { | |
5823 | case QWORD_MNEM_SUFFIX: | |
40fb9820 L |
5824 | mask.bitfield.imm64 = 1; |
5825 | mask.bitfield.imm32s = 1; | |
9cd96992 JB |
5826 | break; |
5827 | case LONG_MNEM_SUFFIX: | |
40fb9820 | 5828 | mask.bitfield.imm32 = 1; |
9cd96992 JB |
5829 | break; |
5830 | case WORD_MNEM_SUFFIX: | |
40fb9820 | 5831 | mask.bitfield.imm16 = 1; |
9cd96992 JB |
5832 | break; |
5833 | case BYTE_MNEM_SUFFIX: | |
40fb9820 | 5834 | mask.bitfield.imm8 = 1; |
9cd96992 JB |
5835 | break; |
5836 | default: | |
9cd96992 JB |
5837 | break; |
5838 | } | |
c6fb90c8 | 5839 | allowed = operand_type_and (mask, allowed); |
0dfbf9d7 | 5840 | if (!operand_type_all_zero (&allowed)) |
c6fb90c8 | 5841 | i.types[op] = operand_type_and (i.types[op], mask); |
9cd96992 | 5842 | } |
29b0f896 | 5843 | break; |
252b5132 | 5844 | } |
29b0f896 AM |
5845 | } |
5846 | } | |
47926f60 | 5847 | |
29b0f896 AM |
5848 | /* Try to use the smallest displacement type too. */ |
5849 | static void | |
e3bb37b5 | 5850 | optimize_disp (void) |
29b0f896 AM |
5851 | { |
5852 | int op; | |
3e73aa7c | 5853 | |
29b0f896 | 5854 | for (op = i.operands; --op >= 0;) |
40fb9820 | 5855 | if (operand_type_check (i.types[op], disp)) |
252b5132 | 5856 | { |
b300c311 | 5857 | if (i.op[op].disps->X_op == O_constant) |
252b5132 | 5858 | { |
91d6fa6a | 5859 | offsetT op_disp = i.op[op].disps->X_add_number; |
29b0f896 | 5860 | |
91d6fa6a | 5861 | if (!op_disp && i.types[op].bitfield.baseindex) |
b300c311 | 5862 | { |
2f2be86b JB |
5863 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
5864 | i.op[op].disps = NULL; | |
b300c311 | 5865 | i.disp_operands--; |
f185acdd JB |
5866 | continue; |
5867 | } | |
5868 | ||
5869 | if (i.types[op].bitfield.disp16 | |
cd613c1f | 5870 | && fits_in_unsigned_word (op_disp)) |
f185acdd JB |
5871 | { |
5872 | /* If this operand is at most 16 bits, convert | |
5873 | to a signed 16 bit number and don't use 64bit | |
5874 | displacement. */ | |
5875 | op_disp = ((op_disp ^ 0x8000) - 0x8000); | |
5876 | i.types[op].bitfield.disp64 = 0; | |
b300c311 | 5877 | } |
f185acdd | 5878 | |
28a167a4 | 5879 | #ifdef BFD64 |
a50187b2 | 5880 | /* Optimize 64-bit displacement to 32-bit for 64-bit BFD. */ |
a775efc8 JB |
5881 | if ((flag_code != CODE_64BIT |
5882 | ? i.types[op].bitfield.disp32 | |
5883 | : want_disp32 (current_templates->start) | |
5884 | && (!current_templates->start->opcode_modifier.jump | |
5885 | || i.jumpabsolute || i.types[op].bitfield.baseindex)) | |
a50187b2 | 5886 | && fits_in_unsigned_long (op_disp)) |
b300c311 | 5887 | { |
a50187b2 JB |
5888 | /* If this operand is at most 32 bits, convert |
5889 | to a signed 32 bit number and don't use 64bit | |
5890 | displacement. */ | |
5891 | op_disp = (op_disp ^ ((offsetT) 1 << 31)) - ((addressT) 1 << 31); | |
5892 | i.types[op].bitfield.disp64 = 0; | |
5893 | i.types[op].bitfield.disp32 = 1; | |
5894 | } | |
28a167a4 | 5895 | |
a50187b2 JB |
5896 | if (flag_code == CODE_64BIT && fits_in_signed_long (op_disp)) |
5897 | { | |
5898 | i.types[op].bitfield.disp64 = 0; | |
a775efc8 | 5899 | i.types[op].bitfield.disp32 = 1; |
b300c311 | 5900 | } |
28a167a4 | 5901 | #endif |
40fb9820 | 5902 | if ((i.types[op].bitfield.disp32 |
40fb9820 | 5903 | || i.types[op].bitfield.disp16) |
b5014f7a | 5904 | && fits_in_disp8 (op_disp)) |
40fb9820 | 5905 | i.types[op].bitfield.disp8 = 1; |
77c59789 JB |
5906 | |
5907 | i.op[op].disps->X_add_number = op_disp; | |
252b5132 | 5908 | } |
67a4f2b7 AO |
5909 | else if (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL |
5910 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL) | |
5911 | { | |
5912 | fix_new_exp (frag_now, frag_more (0) - frag_now->fr_literal, 0, | |
5913 | i.op[op].disps, 0, i.reloc[op]); | |
2f2be86b | 5914 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
67a4f2b7 AO |
5915 | } |
5916 | else | |
b300c311 | 5917 | /* We only support 64bit displacement on constants. */ |
40fb9820 | 5918 | i.types[op].bitfield.disp64 = 0; |
252b5132 | 5919 | } |
29b0f896 AM |
5920 | } |
5921 | ||
4a1b91ea L |
5922 | /* Return 1 if there is a match in broadcast bytes between operand |
5923 | GIVEN and instruction template T. */ | |
5924 | ||
5925 | static INLINE int | |
5926 | match_broadcast_size (const insn_template *t, unsigned int given) | |
5927 | { | |
5928 | return ((t->opcode_modifier.broadcast == BYTE_BROADCAST | |
5929 | && i.types[given].bitfield.byte) | |
5930 | || (t->opcode_modifier.broadcast == WORD_BROADCAST | |
5931 | && i.types[given].bitfield.word) | |
5932 | || (t->opcode_modifier.broadcast == DWORD_BROADCAST | |
5933 | && i.types[given].bitfield.dword) | |
5934 | || (t->opcode_modifier.broadcast == QWORD_BROADCAST | |
5935 | && i.types[given].bitfield.qword)); | |
5936 | } | |
5937 | ||
6c30d220 L |
5938 | /* Check if operands are valid for the instruction. */ |
5939 | ||
5940 | static int | |
5941 | check_VecOperands (const insn_template *t) | |
5942 | { | |
43234a1e | 5943 | unsigned int op; |
e2195274 | 5944 | i386_cpu_flags cpu; |
e2195274 JB |
5945 | |
5946 | /* Templates allowing for ZMMword as well as YMMword and/or XMMword for | |
5947 | any one operand are implicity requiring AVX512VL support if the actual | |
5948 | operand size is YMMword or XMMword. Since this function runs after | |
5949 | template matching, there's no need to check for YMMword/XMMword in | |
5950 | the template. */ | |
5951 | cpu = cpu_flags_and (t->cpu_flags, avx512); | |
5952 | if (!cpu_flags_all_zero (&cpu) | |
5953 | && !t->cpu_flags.bitfield.cpuavx512vl | |
5954 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
5955 | { | |
5956 | for (op = 0; op < t->operands; ++op) | |
5957 | { | |
5958 | if (t->operand_types[op].bitfield.zmmword | |
5959 | && (i.types[op].bitfield.ymmword | |
5960 | || i.types[op].bitfield.xmmword)) | |
5961 | { | |
5962 | i.error = unsupported; | |
5963 | return 1; | |
5964 | } | |
5965 | } | |
5966 | } | |
43234a1e | 5967 | |
22c36940 JB |
5968 | /* Somewhat similarly, templates specifying both AVX and AVX2 are |
5969 | requiring AVX2 support if the actual operand size is YMMword. */ | |
5970 | if (t->cpu_flags.bitfield.cpuavx | |
5971 | && t->cpu_flags.bitfield.cpuavx2 | |
5972 | && !cpu_arch_flags.bitfield.cpuavx2) | |
5973 | { | |
5974 | for (op = 0; op < t->operands; ++op) | |
5975 | { | |
5976 | if (t->operand_types[op].bitfield.xmmword | |
5977 | && i.types[op].bitfield.ymmword) | |
5978 | { | |
5979 | i.error = unsupported; | |
5980 | return 1; | |
5981 | } | |
5982 | } | |
5983 | } | |
5984 | ||
6c30d220 | 5985 | /* Without VSIB byte, we can't have a vector register for index. */ |
63112cd6 | 5986 | if (!t->opcode_modifier.sib |
6c30d220 | 5987 | && i.index_reg |
1b54b8d7 JB |
5988 | && (i.index_reg->reg_type.bitfield.xmmword |
5989 | || i.index_reg->reg_type.bitfield.ymmword | |
5990 | || i.index_reg->reg_type.bitfield.zmmword)) | |
6c30d220 L |
5991 | { |
5992 | i.error = unsupported_vector_index_register; | |
5993 | return 1; | |
5994 | } | |
5995 | ||
ad8ecc81 MZ |
5996 | /* Check if default mask is allowed. */ |
5997 | if (t->opcode_modifier.nodefmask | |
6225c532 | 5998 | && (!i.mask.reg || i.mask.reg->reg_num == 0)) |
ad8ecc81 MZ |
5999 | { |
6000 | i.error = no_default_mask; | |
6001 | return 1; | |
6002 | } | |
6003 | ||
7bab8ab5 JB |
6004 | /* For VSIB byte, we need a vector register for index, and all vector |
6005 | registers must be distinct. */ | |
260cd341 | 6006 | if (t->opcode_modifier.sib && t->opcode_modifier.sib != SIBMEM) |
7bab8ab5 JB |
6007 | { |
6008 | if (!i.index_reg | |
63112cd6 | 6009 | || !((t->opcode_modifier.sib == VECSIB128 |
1b54b8d7 | 6010 | && i.index_reg->reg_type.bitfield.xmmword) |
63112cd6 | 6011 | || (t->opcode_modifier.sib == VECSIB256 |
1b54b8d7 | 6012 | && i.index_reg->reg_type.bitfield.ymmword) |
63112cd6 | 6013 | || (t->opcode_modifier.sib == VECSIB512 |
1b54b8d7 | 6014 | && i.index_reg->reg_type.bitfield.zmmword))) |
7bab8ab5 JB |
6015 | { |
6016 | i.error = invalid_vsib_address; | |
6017 | return 1; | |
6018 | } | |
6019 | ||
6225c532 JB |
6020 | gas_assert (i.reg_operands == 2 || i.mask.reg); |
6021 | if (i.reg_operands == 2 && !i.mask.reg) | |
43234a1e | 6022 | { |
3528c362 | 6023 | gas_assert (i.types[0].bitfield.class == RegSIMD); |
1b54b8d7 JB |
6024 | gas_assert (i.types[0].bitfield.xmmword |
6025 | || i.types[0].bitfield.ymmword); | |
3528c362 | 6026 | gas_assert (i.types[2].bitfield.class == RegSIMD); |
1b54b8d7 JB |
6027 | gas_assert (i.types[2].bitfield.xmmword |
6028 | || i.types[2].bitfield.ymmword); | |
43234a1e L |
6029 | if (operand_check == check_none) |
6030 | return 0; | |
6031 | if (register_number (i.op[0].regs) | |
6032 | != register_number (i.index_reg) | |
6033 | && register_number (i.op[2].regs) | |
6034 | != register_number (i.index_reg) | |
6035 | && register_number (i.op[0].regs) | |
6036 | != register_number (i.op[2].regs)) | |
6037 | return 0; | |
6038 | if (operand_check == check_error) | |
6039 | { | |
6040 | i.error = invalid_vector_register_set; | |
6041 | return 1; | |
6042 | } | |
6043 | as_warn (_("mask, index, and destination registers should be distinct")); | |
6044 | } | |
6225c532 | 6045 | else if (i.reg_operands == 1 && i.mask.reg) |
8444f82a | 6046 | { |
3528c362 | 6047 | if (i.types[1].bitfield.class == RegSIMD |
1b54b8d7 JB |
6048 | && (i.types[1].bitfield.xmmword |
6049 | || i.types[1].bitfield.ymmword | |
6050 | || i.types[1].bitfield.zmmword) | |
8444f82a MZ |
6051 | && (register_number (i.op[1].regs) |
6052 | == register_number (i.index_reg))) | |
6053 | { | |
6054 | if (operand_check == check_error) | |
6055 | { | |
6056 | i.error = invalid_vector_register_set; | |
6057 | return 1; | |
6058 | } | |
6059 | if (operand_check != check_none) | |
6060 | as_warn (_("index and destination registers should be distinct")); | |
6061 | } | |
6062 | } | |
43234a1e | 6063 | } |
7bab8ab5 | 6064 | |
fc141319 L |
6065 | /* For AMX instructions with 3 TMM register operands, all operands |
6066 | must be distinct. */ | |
6067 | if (i.reg_operands == 3 | |
6068 | && t->operand_types[0].bitfield.tmmword | |
6069 | && (i.op[0].regs == i.op[1].regs | |
6070 | || i.op[0].regs == i.op[2].regs | |
6071 | || i.op[1].regs == i.op[2].regs)) | |
6072 | { | |
6073 | i.error = invalid_tmm_register_set; | |
6074 | return 1; | |
260cd341 LC |
6075 | } |
6076 | ||
0cc78721 CL |
6077 | /* For some special instructions require that destination must be distinct |
6078 | from source registers. */ | |
6079 | if (t->opcode_modifier.distinctdest) | |
6080 | { | |
6081 | unsigned int dest_reg = i.operands - 1; | |
6082 | ||
6083 | know (i.operands >= 3); | |
6084 | ||
6085 | /* #UD if dest_reg == src1_reg or dest_reg == src2_reg. */ | |
6086 | if (i.op[dest_reg - 1].regs == i.op[dest_reg].regs | |
6087 | || (i.reg_operands > 2 | |
6088 | && i.op[dest_reg - 2].regs == i.op[dest_reg].regs)) | |
6089 | { | |
6090 | i.error = invalid_dest_and_src_register_set; | |
6091 | return 1; | |
6092 | } | |
6093 | } | |
6094 | ||
43234a1e L |
6095 | /* Check if broadcast is supported by the instruction and is applied |
6096 | to the memory operand. */ | |
a5748e0d | 6097 | if (i.broadcast.type || i.broadcast.bytes) |
43234a1e | 6098 | { |
8e6e0792 | 6099 | i386_operand_type type, overlap; |
43234a1e L |
6100 | |
6101 | /* Check if specified broadcast is supported in this instruction, | |
4a1b91ea | 6102 | and its broadcast bytes match the memory operand. */ |
5273a3cd | 6103 | op = i.broadcast.operand; |
8e6e0792 | 6104 | if (!t->opcode_modifier.broadcast |
c48dadc9 | 6105 | || !(i.flags[op] & Operand_Mem) |
c39e5b26 | 6106 | || (!i.types[op].bitfield.unspecified |
4a1b91ea | 6107 | && !match_broadcast_size (t, op))) |
43234a1e L |
6108 | { |
6109 | bad_broadcast: | |
6110 | i.error = unsupported_broadcast; | |
6111 | return 1; | |
6112 | } | |
8e6e0792 | 6113 | |
a5748e0d JB |
6114 | if (i.broadcast.type) |
6115 | i.broadcast.bytes = ((1 << (t->opcode_modifier.broadcast - 1)) | |
6116 | * i.broadcast.type); | |
8e6e0792 | 6117 | operand_type_set (&type, 0); |
a5748e0d | 6118 | switch (get_broadcast_bytes (t, false)) |
8e6e0792 | 6119 | { |
4a1b91ea L |
6120 | case 2: |
6121 | type.bitfield.word = 1; | |
6122 | break; | |
6123 | case 4: | |
6124 | type.bitfield.dword = 1; | |
6125 | break; | |
8e6e0792 JB |
6126 | case 8: |
6127 | type.bitfield.qword = 1; | |
6128 | break; | |
6129 | case 16: | |
6130 | type.bitfield.xmmword = 1; | |
6131 | break; | |
6132 | case 32: | |
6133 | type.bitfield.ymmword = 1; | |
6134 | break; | |
6135 | case 64: | |
6136 | type.bitfield.zmmword = 1; | |
6137 | break; | |
6138 | default: | |
6139 | goto bad_broadcast; | |
6140 | } | |
6141 | ||
6142 | overlap = operand_type_and (type, t->operand_types[op]); | |
bc49bfd8 JB |
6143 | if (t->operand_types[op].bitfield.class == RegSIMD |
6144 | && t->operand_types[op].bitfield.byte | |
6145 | + t->operand_types[op].bitfield.word | |
6146 | + t->operand_types[op].bitfield.dword | |
6147 | + t->operand_types[op].bitfield.qword > 1) | |
6148 | { | |
6149 | overlap.bitfield.xmmword = 0; | |
6150 | overlap.bitfield.ymmword = 0; | |
6151 | overlap.bitfield.zmmword = 0; | |
6152 | } | |
8e6e0792 JB |
6153 | if (operand_type_all_zero (&overlap)) |
6154 | goto bad_broadcast; | |
6155 | ||
6156 | if (t->opcode_modifier.checkregsize) | |
6157 | { | |
6158 | unsigned int j; | |
6159 | ||
e2195274 | 6160 | type.bitfield.baseindex = 1; |
8e6e0792 JB |
6161 | for (j = 0; j < i.operands; ++j) |
6162 | { | |
6163 | if (j != op | |
6164 | && !operand_type_register_match(i.types[j], | |
6165 | t->operand_types[j], | |
6166 | type, | |
6167 | t->operand_types[op])) | |
6168 | goto bad_broadcast; | |
6169 | } | |
6170 | } | |
43234a1e L |
6171 | } |
6172 | /* If broadcast is supported in this instruction, we need to check if | |
6173 | operand of one-element size isn't specified without broadcast. */ | |
6174 | else if (t->opcode_modifier.broadcast && i.mem_operands) | |
6175 | { | |
6176 | /* Find memory operand. */ | |
6177 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 6178 | if (i.flags[op] & Operand_Mem) |
43234a1e L |
6179 | break; |
6180 | gas_assert (op < i.operands); | |
6181 | /* Check size of the memory operand. */ | |
4a1b91ea | 6182 | if (match_broadcast_size (t, op)) |
43234a1e L |
6183 | { |
6184 | i.error = broadcast_needed; | |
6185 | return 1; | |
6186 | } | |
6187 | } | |
c39e5b26 JB |
6188 | else |
6189 | op = MAX_OPERANDS - 1; /* Avoid uninitialized variable warning. */ | |
43234a1e L |
6190 | |
6191 | /* Check if requested masking is supported. */ | |
6225c532 | 6192 | if (i.mask.reg) |
43234a1e | 6193 | { |
ae2387fe JB |
6194 | switch (t->opcode_modifier.masking) |
6195 | { | |
6196 | case BOTH_MASKING: | |
6197 | break; | |
6198 | case MERGING_MASKING: | |
6225c532 | 6199 | if (i.mask.zeroing) |
ae2387fe JB |
6200 | { |
6201 | case 0: | |
6202 | i.error = unsupported_masking; | |
6203 | return 1; | |
6204 | } | |
6205 | break; | |
6206 | case DYNAMIC_MASKING: | |
6207 | /* Memory destinations allow only merging masking. */ | |
6225c532 | 6208 | if (i.mask.zeroing && i.mem_operands) |
ae2387fe JB |
6209 | { |
6210 | /* Find memory operand. */ | |
6211 | for (op = 0; op < i.operands; op++) | |
c48dadc9 | 6212 | if (i.flags[op] & Operand_Mem) |
ae2387fe JB |
6213 | break; |
6214 | gas_assert (op < i.operands); | |
6215 | if (op == i.operands - 1) | |
6216 | { | |
6217 | i.error = unsupported_masking; | |
6218 | return 1; | |
6219 | } | |
6220 | } | |
6221 | break; | |
6222 | default: | |
6223 | abort (); | |
6224 | } | |
43234a1e L |
6225 | } |
6226 | ||
6227 | /* Check if masking is applied to dest operand. */ | |
6225c532 | 6228 | if (i.mask.reg && (i.mask.operand != i.operands - 1)) |
43234a1e L |
6229 | { |
6230 | i.error = mask_not_on_destination; | |
6231 | return 1; | |
6232 | } | |
6233 | ||
43234a1e | 6234 | /* Check RC/SAE. */ |
ca5312a2 | 6235 | if (i.rounding.type != rc_none) |
43234a1e | 6236 | { |
a80195f1 | 6237 | if (!t->opcode_modifier.sae |
cf665fee JB |
6238 | || ((i.rounding.type != saeonly) != t->opcode_modifier.staticrounding) |
6239 | || i.mem_operands) | |
43234a1e L |
6240 | { |
6241 | i.error = unsupported_rc_sae; | |
6242 | return 1; | |
6243 | } | |
cf665fee JB |
6244 | |
6245 | /* Non-EVEX.LIG forms need to have a ZMM register as at least one | |
6246 | operand. */ | |
6247 | if (t->opcode_modifier.evex != EVEXLIG) | |
7bab8ab5 | 6248 | { |
cf665fee JB |
6249 | for (op = 0; op < t->operands; ++op) |
6250 | if (i.types[op].bitfield.zmmword) | |
6251 | break; | |
6252 | if (op >= t->operands) | |
6253 | { | |
6254 | i.error = operand_size_mismatch; | |
6255 | return 1; | |
6256 | } | |
7bab8ab5 | 6257 | } |
6c30d220 L |
6258 | } |
6259 | ||
da4977e0 JB |
6260 | /* Check the special Imm4 cases; must be the first operand. */ |
6261 | if (t->cpu_flags.bitfield.cpuxop && t->operands == 5) | |
6262 | { | |
6263 | if (i.op[0].imms->X_op != O_constant | |
6264 | || !fits_in_imm4 (i.op[0].imms->X_add_number)) | |
6265 | { | |
6266 | i.error = bad_imm4; | |
6267 | return 1; | |
6268 | } | |
6269 | ||
6270 | /* Turn off Imm<N> so that update_imm won't complain. */ | |
6271 | operand_type_set (&i.types[0], 0); | |
6272 | } | |
6273 | ||
43234a1e | 6274 | /* Check vector Disp8 operand. */ |
b5014f7a | 6275 | if (t->opcode_modifier.disp8memshift |
1a42a9fe | 6276 | && i.disp_encoding <= disp_encoding_8bit) |
43234a1e | 6277 | { |
a5748e0d | 6278 | if (i.broadcast.bytes) |
4a1b91ea | 6279 | i.memshift = t->opcode_modifier.broadcast - 1; |
7091c612 | 6280 | else if (t->opcode_modifier.disp8memshift != DISP8_SHIFT_VL) |
43234a1e | 6281 | i.memshift = t->opcode_modifier.disp8memshift; |
7091c612 JB |
6282 | else |
6283 | { | |
125ff819 | 6284 | const i386_operand_type *type = NULL, *fallback = NULL; |
7091c612 JB |
6285 | |
6286 | i.memshift = 0; | |
6287 | for (op = 0; op < i.operands; op++) | |
8dc0818e | 6288 | if (i.flags[op] & Operand_Mem) |
7091c612 | 6289 | { |
4174bfff JB |
6290 | if (t->opcode_modifier.evex == EVEXLIG) |
6291 | i.memshift = 2 + (i.suffix == QWORD_MNEM_SUFFIX); | |
6292 | else if (t->operand_types[op].bitfield.xmmword | |
6293 | + t->operand_types[op].bitfield.ymmword | |
6294 | + t->operand_types[op].bitfield.zmmword <= 1) | |
7091c612 JB |
6295 | type = &t->operand_types[op]; |
6296 | else if (!i.types[op].bitfield.unspecified) | |
6297 | type = &i.types[op]; | |
125ff819 JB |
6298 | else /* Ambiguities get resolved elsewhere. */ |
6299 | fallback = &t->operand_types[op]; | |
7091c612 | 6300 | } |
3528c362 | 6301 | else if (i.types[op].bitfield.class == RegSIMD |
4174bfff | 6302 | && t->opcode_modifier.evex != EVEXLIG) |
7091c612 JB |
6303 | { |
6304 | if (i.types[op].bitfield.zmmword) | |
6305 | i.memshift = 6; | |
6306 | else if (i.types[op].bitfield.ymmword && i.memshift < 5) | |
6307 | i.memshift = 5; | |
6308 | else if (i.types[op].bitfield.xmmword && i.memshift < 4) | |
6309 | i.memshift = 4; | |
6310 | } | |
6311 | ||
125ff819 JB |
6312 | if (!type && !i.memshift) |
6313 | type = fallback; | |
7091c612 JB |
6314 | if (type) |
6315 | { | |
6316 | if (type->bitfield.zmmword) | |
6317 | i.memshift = 6; | |
6318 | else if (type->bitfield.ymmword) | |
6319 | i.memshift = 5; | |
6320 | else if (type->bitfield.xmmword) | |
6321 | i.memshift = 4; | |
6322 | } | |
6323 | ||
6324 | /* For the check in fits_in_disp8(). */ | |
6325 | if (i.memshift == 0) | |
6326 | i.memshift = -1; | |
6327 | } | |
43234a1e L |
6328 | |
6329 | for (op = 0; op < i.operands; op++) | |
6330 | if (operand_type_check (i.types[op], disp) | |
6331 | && i.op[op].disps->X_op == O_constant) | |
6332 | { | |
b5014f7a | 6333 | if (fits_in_disp8 (i.op[op].disps->X_add_number)) |
43234a1e | 6334 | { |
b5014f7a JB |
6335 | i.types[op].bitfield.disp8 = 1; |
6336 | return 0; | |
43234a1e | 6337 | } |
b5014f7a | 6338 | i.types[op].bitfield.disp8 = 0; |
43234a1e L |
6339 | } |
6340 | } | |
b5014f7a JB |
6341 | |
6342 | i.memshift = 0; | |
43234a1e | 6343 | |
6c30d220 L |
6344 | return 0; |
6345 | } | |
6346 | ||
da4977e0 | 6347 | /* Check if encoding requirements are met by the instruction. */ |
a683cc34 SP |
6348 | |
6349 | static int | |
da4977e0 | 6350 | VEX_check_encoding (const insn_template *t) |
a683cc34 | 6351 | { |
da4977e0 JB |
6352 | if (i.vec_encoding == vex_encoding_error) |
6353 | { | |
6354 | i.error = unsupported; | |
6355 | return 1; | |
6356 | } | |
6357 | ||
86fa6981 | 6358 | if (i.vec_encoding == vex_encoding_evex) |
43234a1e | 6359 | { |
86fa6981 | 6360 | /* This instruction must be encoded with EVEX prefix. */ |
e771e7c9 | 6361 | if (!is_evex_encoding (t)) |
86fa6981 L |
6362 | { |
6363 | i.error = unsupported; | |
6364 | return 1; | |
6365 | } | |
6366 | return 0; | |
43234a1e L |
6367 | } |
6368 | ||
a683cc34 | 6369 | if (!t->opcode_modifier.vex) |
86fa6981 L |
6370 | { |
6371 | /* This instruction template doesn't have VEX prefix. */ | |
6372 | if (i.vec_encoding != vex_encoding_default) | |
6373 | { | |
6374 | i.error = unsupported; | |
6375 | return 1; | |
6376 | } | |
6377 | return 0; | |
6378 | } | |
a683cc34 | 6379 | |
a683cc34 SP |
6380 | return 0; |
6381 | } | |
6382 | ||
7b94647a JB |
6383 | /* Helper function for the progress() macro in match_template(). */ |
6384 | static INLINE enum i386_error progress (enum i386_error new, | |
6385 | enum i386_error last, | |
6386 | unsigned int line, unsigned int *line_p) | |
6387 | { | |
6388 | if (line <= *line_p) | |
6389 | return last; | |
6390 | *line_p = line; | |
6391 | return new; | |
6392 | } | |
6393 | ||
d3ce72d0 | 6394 | static const insn_template * |
83b16ac6 | 6395 | match_template (char mnem_suffix) |
29b0f896 AM |
6396 | { |
6397 | /* Points to template once we've found it. */ | |
d3ce72d0 | 6398 | const insn_template *t; |
40fb9820 | 6399 | i386_operand_type overlap0, overlap1, overlap2, overlap3; |
c0f3af97 | 6400 | i386_operand_type overlap4; |
29b0f896 | 6401 | unsigned int found_reverse_match; |
dc2be329 | 6402 | i386_opcode_modifier suffix_check; |
40fb9820 | 6403 | i386_operand_type operand_types [MAX_OPERANDS]; |
539e75ad | 6404 | int addr_prefix_disp; |
7b94647a JB |
6405 | unsigned int j, size_match, check_register, errline = __LINE__; |
6406 | enum i386_error specific_error = number_of_operands_mismatch; | |
6407 | #define progress(err) progress (err, specific_error, __LINE__, &errline) | |
29b0f896 | 6408 | |
c0f3af97 L |
6409 | #if MAX_OPERANDS != 5 |
6410 | # error "MAX_OPERANDS must be 5." | |
f48ff2ae L |
6411 | #endif |
6412 | ||
29b0f896 | 6413 | found_reverse_match = 0; |
539e75ad | 6414 | addr_prefix_disp = -1; |
40fb9820 | 6415 | |
dc2be329 | 6416 | /* Prepare for mnemonic suffix check. */ |
40fb9820 | 6417 | memset (&suffix_check, 0, sizeof (suffix_check)); |
dc2be329 L |
6418 | switch (mnem_suffix) |
6419 | { | |
6420 | case BYTE_MNEM_SUFFIX: | |
6421 | suffix_check.no_bsuf = 1; | |
6422 | break; | |
6423 | case WORD_MNEM_SUFFIX: | |
6424 | suffix_check.no_wsuf = 1; | |
6425 | break; | |
6426 | case SHORT_MNEM_SUFFIX: | |
6427 | suffix_check.no_ssuf = 1; | |
6428 | break; | |
6429 | case LONG_MNEM_SUFFIX: | |
6430 | suffix_check.no_lsuf = 1; | |
6431 | break; | |
6432 | case QWORD_MNEM_SUFFIX: | |
6433 | suffix_check.no_qsuf = 1; | |
6434 | break; | |
6435 | default: | |
6436 | /* NB: In Intel syntax, normally we can check for memory operand | |
6437 | size when there is no mnemonic suffix. But jmp and call have | |
6438 | 2 different encodings with Dword memory operand size, one with | |
6439 | No_ldSuf and the other without. i.suffix is set to | |
6440 | LONG_DOUBLE_MNEM_SUFFIX to skip the one with No_ldSuf. */ | |
6441 | if (i.suffix == LONG_DOUBLE_MNEM_SUFFIX) | |
6442 | suffix_check.no_ldsuf = 1; | |
83b16ac6 JB |
6443 | } |
6444 | ||
45aa61fe | 6445 | for (t = current_templates->start; t < current_templates->end; t++) |
29b0f896 | 6446 | { |
539e75ad | 6447 | addr_prefix_disp = -1; |
dbbc8b7e | 6448 | found_reverse_match = 0; |
539e75ad | 6449 | |
7b94647a | 6450 | /* Must have right number of operands. */ |
29b0f896 AM |
6451 | if (i.operands != t->operands) |
6452 | continue; | |
6453 | ||
50aecf8c | 6454 | /* Check processor support. */ |
7b94647a | 6455 | specific_error = progress (unsupported); |
45a4bb20 | 6456 | if (cpu_flags_match (t) != CPU_FLAGS_PERFECT_MATCH) |
50aecf8c L |
6457 | continue; |
6458 | ||
e1d4d893 | 6459 | /* Check AT&T mnemonic. */ |
7b94647a | 6460 | specific_error = progress (unsupported_with_intel_mnemonic); |
e1d4d893 | 6461 | if (intel_mnemonic && t->opcode_modifier.attmnemonic) |
1efbbeb4 L |
6462 | continue; |
6463 | ||
4b5aaf5f | 6464 | /* Check AT&T/Intel syntax. */ |
7b94647a | 6465 | specific_error = progress (unsupported_syntax); |
5c07affc | 6466 | if ((intel_syntax && t->opcode_modifier.attsyntax) |
4b5aaf5f | 6467 | || (!intel_syntax && t->opcode_modifier.intelsyntax)) |
1efbbeb4 L |
6468 | continue; |
6469 | ||
4b5aaf5f L |
6470 | /* Check Intel64/AMD64 ISA. */ |
6471 | switch (isa64) | |
6472 | { | |
6473 | default: | |
6474 | /* Default: Don't accept Intel64. */ | |
6475 | if (t->opcode_modifier.isa64 == INTEL64) | |
6476 | continue; | |
6477 | break; | |
6478 | case amd64: | |
6479 | /* -mamd64: Don't accept Intel64 and Intel64 only. */ | |
6480 | if (t->opcode_modifier.isa64 >= INTEL64) | |
6481 | continue; | |
6482 | break; | |
6483 | case intel64: | |
6484 | /* -mintel64: Don't accept AMD64. */ | |
5990e377 | 6485 | if (t->opcode_modifier.isa64 == AMD64 && flag_code == CODE_64BIT) |
4b5aaf5f L |
6486 | continue; |
6487 | break; | |
6488 | } | |
6489 | ||
dc2be329 | 6490 | /* Check the suffix. */ |
7b94647a | 6491 | specific_error = progress (invalid_instruction_suffix); |
dc2be329 L |
6492 | if ((t->opcode_modifier.no_bsuf && suffix_check.no_bsuf) |
6493 | || (t->opcode_modifier.no_wsuf && suffix_check.no_wsuf) | |
6494 | || (t->opcode_modifier.no_lsuf && suffix_check.no_lsuf) | |
6495 | || (t->opcode_modifier.no_ssuf && suffix_check.no_ssuf) | |
6496 | || (t->opcode_modifier.no_qsuf && suffix_check.no_qsuf) | |
6497 | || (t->opcode_modifier.no_ldsuf && suffix_check.no_ldsuf)) | |
83b16ac6 | 6498 | continue; |
29b0f896 | 6499 | |
7b94647a | 6500 | specific_error = progress (operand_size_mismatch); |
3ac21baa JB |
6501 | size_match = operand_size_match (t); |
6502 | if (!size_match) | |
7d5e4556 | 6503 | continue; |
539e75ad | 6504 | |
6f2f06be JB |
6505 | /* This is intentionally not |
6506 | ||
0cfa3eb3 | 6507 | if (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE)) |
6f2f06be JB |
6508 | |
6509 | as the case of a missing * on the operand is accepted (perhaps with | |
6510 | a warning, issued further down). */ | |
7b94647a | 6511 | specific_error = progress (operand_type_mismatch); |
0cfa3eb3 | 6512 | if (i.jumpabsolute && t->opcode_modifier.jump != JUMP_ABSOLUTE) |
7b94647a | 6513 | continue; |
6f2f06be | 6514 | |
5c07affc L |
6515 | for (j = 0; j < MAX_OPERANDS; j++) |
6516 | operand_types[j] = t->operand_types[j]; | |
6517 | ||
e365e234 JB |
6518 | /* In general, don't allow |
6519 | - 64-bit operands outside of 64-bit mode, | |
6520 | - 32-bit operands on pre-386. */ | |
7b94647a JB |
6521 | specific_error = progress (mnem_suffix ? invalid_instruction_suffix |
6522 | : operand_size_mismatch); | |
4873e243 | 6523 | j = i.imm_operands + (t->operands > i.imm_operands + 1); |
e365e234 JB |
6524 | if (((i.suffix == QWORD_MNEM_SUFFIX |
6525 | && flag_code != CODE_64BIT | |
389d00a5 JB |
6526 | && !(t->opcode_modifier.opcodespace == SPACE_0F |
6527 | && t->base_opcode == 0xc7 | |
5e74b495 | 6528 | && t->opcode_modifier.opcodeprefix == PREFIX_NONE |
8b65b895 | 6529 | && t->extension_opcode == 1) /* cmpxchg8b */) |
e365e234 JB |
6530 | || (i.suffix == LONG_MNEM_SUFFIX |
6531 | && !cpu_arch_flags.bitfield.cpui386)) | |
45aa61fe | 6532 | && (intel_syntax |
3cd7f3e3 | 6533 | ? (t->opcode_modifier.mnemonicsize != IGNORESIZE |
45aa61fe AM |
6534 | && !intel_float_operand (t->name)) |
6535 | : intel_float_operand (t->name) != 2) | |
4873e243 JB |
6536 | && (t->operands == i.imm_operands |
6537 | || (operand_types[i.imm_operands].bitfield.class != RegMMX | |
6538 | && operand_types[i.imm_operands].bitfield.class != RegSIMD | |
6539 | && operand_types[i.imm_operands].bitfield.class != RegMask) | |
6540 | || (operand_types[j].bitfield.class != RegMMX | |
6541 | && operand_types[j].bitfield.class != RegSIMD | |
6542 | && operand_types[j].bitfield.class != RegMask)) | |
63112cd6 | 6543 | && !t->opcode_modifier.sib) |
192dc9c6 JB |
6544 | continue; |
6545 | ||
29b0f896 | 6546 | /* Do not verify operands when there are none. */ |
e365e234 | 6547 | if (!t->operands) |
da4977e0 JB |
6548 | { |
6549 | if (VEX_check_encoding (t)) | |
6550 | { | |
7b94647a | 6551 | specific_error = progress (i.error); |
da4977e0 JB |
6552 | continue; |
6553 | } | |
6554 | ||
6555 | /* We've found a match; break out of loop. */ | |
6556 | break; | |
6557 | } | |
252b5132 | 6558 | |
48bcea9f JB |
6559 | if (!t->opcode_modifier.jump |
6560 | || t->opcode_modifier.jump == JUMP_ABSOLUTE) | |
6561 | { | |
6562 | /* There should be only one Disp operand. */ | |
6563 | for (j = 0; j < MAX_OPERANDS; j++) | |
6564 | if (operand_type_check (operand_types[j], disp)) | |
539e75ad | 6565 | break; |
48bcea9f JB |
6566 | if (j < MAX_OPERANDS) |
6567 | { | |
5b7c81bd | 6568 | bool override = (i.prefix[ADDR_PREFIX] != 0); |
48bcea9f JB |
6569 | |
6570 | addr_prefix_disp = j; | |
6571 | ||
a775efc8 JB |
6572 | /* Address size prefix will turn Disp64 operand into Disp32 and |
6573 | Disp32/Disp16 one into Disp16/Disp32 respectively. */ | |
48bcea9f | 6574 | switch (flag_code) |
40fb9820 | 6575 | { |
48bcea9f JB |
6576 | case CODE_16BIT: |
6577 | override = !override; | |
6578 | /* Fall through. */ | |
6579 | case CODE_32BIT: | |
6580 | if (operand_types[j].bitfield.disp32 | |
6581 | && operand_types[j].bitfield.disp16) | |
40fb9820 | 6582 | { |
48bcea9f JB |
6583 | operand_types[j].bitfield.disp16 = override; |
6584 | operand_types[j].bitfield.disp32 = !override; | |
40fb9820 | 6585 | } |
a775efc8 | 6586 | gas_assert (!operand_types[j].bitfield.disp64); |
48bcea9f JB |
6587 | break; |
6588 | ||
6589 | case CODE_64BIT: | |
a775efc8 | 6590 | if (operand_types[j].bitfield.disp64) |
40fb9820 | 6591 | { |
a775efc8 | 6592 | gas_assert (!operand_types[j].bitfield.disp32); |
48bcea9f | 6593 | operand_types[j].bitfield.disp32 = override; |
a775efc8 | 6594 | operand_types[j].bitfield.disp64 = !override; |
40fb9820 | 6595 | } |
48bcea9f JB |
6596 | operand_types[j].bitfield.disp16 = 0; |
6597 | break; | |
40fb9820 | 6598 | } |
539e75ad | 6599 | } |
48bcea9f | 6600 | } |
539e75ad | 6601 | |
d7e3e627 L |
6602 | switch (i.reloc[0]) |
6603 | { | |
6604 | case BFD_RELOC_386_GOT32: | |
6605 | /* Force 0x8b encoding for "mov foo@GOT, %eax". */ | |
6606 | if (t->base_opcode == 0xa0 | |
6607 | && t->opcode_modifier.opcodespace == SPACE_BASE) | |
6608 | continue; | |
6609 | break; | |
6610 | case BFD_RELOC_386_TLS_GOTIE: | |
6611 | case BFD_RELOC_386_TLS_LE_32: | |
6612 | case BFD_RELOC_X86_64_GOTTPOFF: | |
6613 | case BFD_RELOC_X86_64_TLSLD: | |
6614 | /* Don't allow KMOV in TLS code sequences. */ | |
6615 | if (t->opcode_modifier.vex) | |
6616 | continue; | |
6617 | break; | |
6618 | default: | |
6619 | break; | |
6620 | } | |
02a86693 | 6621 | |
56ffb741 | 6622 | /* We check register size if needed. */ |
e2195274 JB |
6623 | if (t->opcode_modifier.checkregsize) |
6624 | { | |
6625 | check_register = (1 << t->operands) - 1; | |
a5748e0d | 6626 | if (i.broadcast.type || i.broadcast.bytes) |
5273a3cd | 6627 | check_register &= ~(1 << i.broadcast.operand); |
e2195274 JB |
6628 | } |
6629 | else | |
6630 | check_register = 0; | |
6631 | ||
c6fb90c8 | 6632 | overlap0 = operand_type_and (i.types[0], operand_types[0]); |
29b0f896 AM |
6633 | switch (t->operands) |
6634 | { | |
6635 | case 1: | |
40fb9820 | 6636 | if (!operand_type_match (overlap0, i.types[0])) |
29b0f896 AM |
6637 | continue; |
6638 | break; | |
6639 | case 2: | |
33eaf5de | 6640 | /* xchg %eax, %eax is a special case. It is an alias for nop |
8b38ad71 L |
6641 | only in 32bit mode and we can use opcode 0x90. In 64bit |
6642 | mode, we can't use 0x90 for xchg %eax, %eax since it should | |
6643 | zero-extend %eax to %rax. */ | |
6644 | if (flag_code == CODE_64BIT | |
6645 | && t->base_opcode == 0x90 | |
35648716 | 6646 | && t->opcode_modifier.opcodespace == SPACE_BASE |
75e5731b JB |
6647 | && i.types[0].bitfield.instance == Accum |
6648 | && i.types[0].bitfield.dword | |
6649 | && i.types[1].bitfield.instance == Accum | |
6650 | && i.types[1].bitfield.dword) | |
8b38ad71 | 6651 | continue; |
1212781b JB |
6652 | /* xrelease mov %eax, <disp> is another special case. It must not |
6653 | match the accumulator-only encoding of mov. */ | |
6654 | if (flag_code != CODE_64BIT | |
6655 | && i.hle_prefix | |
6656 | && t->base_opcode == 0xa0 | |
35648716 | 6657 | && t->opcode_modifier.opcodespace == SPACE_BASE |
75e5731b | 6658 | && i.types[0].bitfield.instance == Accum |
8dc0818e | 6659 | && (i.flags[1] & Operand_Mem)) |
1212781b | 6660 | continue; |
f5eb1d70 JB |
6661 | /* Fall through. */ |
6662 | ||
6663 | case 3: | |
3ac21baa JB |
6664 | if (!(size_match & MATCH_STRAIGHT)) |
6665 | goto check_reverse; | |
64c49ab3 JB |
6666 | /* Reverse direction of operands if swapping is possible in the first |
6667 | place (operands need to be symmetric) and | |
6668 | - the load form is requested, and the template is a store form, | |
6669 | - the store form is requested, and the template is a load form, | |
6670 | - the non-default (swapped) form is requested. */ | |
6671 | overlap1 = operand_type_and (operand_types[0], operand_types[1]); | |
f5eb1d70 | 6672 | if (t->opcode_modifier.d && i.reg_operands == i.operands |
64c49ab3 JB |
6673 | && !operand_type_all_zero (&overlap1)) |
6674 | switch (i.dir_encoding) | |
6675 | { | |
6676 | case dir_encoding_load: | |
6677 | if (operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6678 | || t->opcode_modifier.regmem) |
64c49ab3 JB |
6679 | goto check_reverse; |
6680 | break; | |
6681 | ||
6682 | case dir_encoding_store: | |
6683 | if (!operand_type_check (operand_types[i.operands - 1], anymem) | |
dfd69174 | 6684 | && !t->opcode_modifier.regmem) |
64c49ab3 JB |
6685 | goto check_reverse; |
6686 | break; | |
6687 | ||
6688 | case dir_encoding_swap: | |
6689 | goto check_reverse; | |
6690 | ||
6691 | case dir_encoding_default: | |
6692 | break; | |
6693 | } | |
86fa6981 | 6694 | /* If we want store form, we skip the current load. */ |
64c49ab3 JB |
6695 | if ((i.dir_encoding == dir_encoding_store |
6696 | || i.dir_encoding == dir_encoding_swap) | |
86fa6981 L |
6697 | && i.mem_operands == 0 |
6698 | && t->opcode_modifier.load) | |
fa99fab2 | 6699 | continue; |
1a0670f3 | 6700 | /* Fall through. */ |
f48ff2ae | 6701 | case 4: |
c0f3af97 | 6702 | case 5: |
c6fb90c8 | 6703 | overlap1 = operand_type_and (i.types[1], operand_types[1]); |
40fb9820 L |
6704 | if (!operand_type_match (overlap0, i.types[0]) |
6705 | || !operand_type_match (overlap1, i.types[1]) | |
e2195274 | 6706 | || ((check_register & 3) == 3 |
dc821c5f | 6707 | && !operand_type_register_match (i.types[0], |
40fb9820 | 6708 | operand_types[0], |
dc821c5f | 6709 | i.types[1], |
40fb9820 | 6710 | operand_types[1]))) |
29b0f896 | 6711 | { |
7b94647a JB |
6712 | specific_error = progress (i.error); |
6713 | ||
29b0f896 | 6714 | /* Check if other direction is valid ... */ |
38e314eb | 6715 | if (!t->opcode_modifier.d) |
29b0f896 AM |
6716 | continue; |
6717 | ||
dc1e8a47 | 6718 | check_reverse: |
3ac21baa JB |
6719 | if (!(size_match & MATCH_REVERSE)) |
6720 | continue; | |
29b0f896 | 6721 | /* Try reversing direction of operands. */ |
8bd915b7 JB |
6722 | j = t->opcode_modifier.vexsources ? 1 : i.operands - 1; |
6723 | overlap0 = operand_type_and (i.types[0], operand_types[j]); | |
6724 | overlap1 = operand_type_and (i.types[j], operand_types[0]); | |
c975cec5 JB |
6725 | overlap2 = operand_type_and (i.types[1], operand_types[1]); |
6726 | gas_assert (t->operands != 3 || !check_register); | |
40fb9820 | 6727 | if (!operand_type_match (overlap0, i.types[0]) |
8bd915b7 | 6728 | || !operand_type_match (overlap1, i.types[j]) |
c975cec5 JB |
6729 | || (t->operands == 3 |
6730 | && !operand_type_match (overlap2, i.types[1])) | |
45664ddb | 6731 | || (check_register |
dc821c5f | 6732 | && !operand_type_register_match (i.types[0], |
8bd915b7 JB |
6733 | operand_types[j], |
6734 | i.types[j], | |
45664ddb | 6735 | operand_types[0]))) |
29b0f896 AM |
6736 | { |
6737 | /* Does not match either direction. */ | |
7b94647a | 6738 | specific_error = progress (i.error); |
29b0f896 AM |
6739 | continue; |
6740 | } | |
38e314eb | 6741 | /* found_reverse_match holds which of D or FloatR |
29b0f896 | 6742 | we've found. */ |
38e314eb JB |
6743 | if (!t->opcode_modifier.d) |
6744 | found_reverse_match = 0; | |
6745 | else if (operand_types[0].bitfield.tbyte) | |
8a2ed489 | 6746 | found_reverse_match = Opcode_FloatD; |
8bd915b7 JB |
6747 | else if (t->opcode_modifier.vexsources) |
6748 | { | |
6749 | found_reverse_match = Opcode_VexW; | |
6750 | goto check_operands_345; | |
6751 | } | |
2c735193 JB |
6752 | else if (t->opcode_modifier.opcodespace != SPACE_BASE |
6753 | && (t->opcode_modifier.opcodespace != SPACE_0F | |
6754 | /* MOV to/from CR/DR/TR, as an exception, follow | |
6755 | the base opcode space encoding model. */ | |
6756 | || (t->base_opcode | 7) != 0x27)) | |
dbbc8b7e | 6757 | found_reverse_match = (t->base_opcode & 0xee) != 0x6e |
2c735193 | 6758 | ? Opcode_ExtD : Opcode_SIMD_IntD; |
8a2ed489 | 6759 | else |
38e314eb | 6760 | found_reverse_match = Opcode_D; |
40fb9820 | 6761 | if (t->opcode_modifier.floatr) |
8a2ed489 | 6762 | found_reverse_match |= Opcode_FloatR; |
29b0f896 | 6763 | } |
f48ff2ae | 6764 | else |
29b0f896 | 6765 | { |
f48ff2ae | 6766 | /* Found a forward 2 operand match here. */ |
8bd915b7 | 6767 | check_operands_345: |
d1cbb4db L |
6768 | switch (t->operands) |
6769 | { | |
c0f3af97 | 6770 | case 5: |
3d0738af | 6771 | overlap4 = operand_type_and (i.types[4], operand_types[4]); |
c0f3af97 | 6772 | if (!operand_type_match (overlap4, i.types[4]) |
dc821c5f | 6773 | || !operand_type_register_match (i.types[3], |
c0f3af97 | 6774 | operand_types[3], |
c0f3af97 L |
6775 | i.types[4], |
6776 | operand_types[4])) | |
7b94647a JB |
6777 | { |
6778 | specific_error = progress (i.error); | |
6779 | continue; | |
6780 | } | |
1a0670f3 | 6781 | /* Fall through. */ |
f48ff2ae | 6782 | case 4: |
3d0738af | 6783 | overlap3 = operand_type_and (i.types[3], operand_types[3]); |
40fb9820 | 6784 | if (!operand_type_match (overlap3, i.types[3]) |
e2195274 JB |
6785 | || ((check_register & 0xa) == 0xa |
6786 | && !operand_type_register_match (i.types[1], | |
f7768225 JB |
6787 | operand_types[1], |
6788 | i.types[3], | |
e2195274 JB |
6789 | operand_types[3])) |
6790 | || ((check_register & 0xc) == 0xc | |
6791 | && !operand_type_register_match (i.types[2], | |
6792 | operand_types[2], | |
6793 | i.types[3], | |
6794 | operand_types[3]))) | |
7b94647a JB |
6795 | { |
6796 | specific_error = progress (i.error); | |
6797 | continue; | |
6798 | } | |
1a0670f3 | 6799 | /* Fall through. */ |
f48ff2ae | 6800 | case 3: |
3d0738af | 6801 | overlap2 = operand_type_and (i.types[2], operand_types[2]); |
40fb9820 | 6802 | if (!operand_type_match (overlap2, i.types[2]) |
e2195274 JB |
6803 | || ((check_register & 5) == 5 |
6804 | && !operand_type_register_match (i.types[0], | |
23e42951 JB |
6805 | operand_types[0], |
6806 | i.types[2], | |
e2195274 JB |
6807 | operand_types[2])) |
6808 | || ((check_register & 6) == 6 | |
6809 | && !operand_type_register_match (i.types[1], | |
6810 | operand_types[1], | |
6811 | i.types[2], | |
6812 | operand_types[2]))) | |
7b94647a JB |
6813 | { |
6814 | specific_error = progress (i.error); | |
6815 | continue; | |
6816 | } | |
f48ff2ae L |
6817 | break; |
6818 | } | |
29b0f896 | 6819 | } |
f48ff2ae | 6820 | /* Found either forward/reverse 2, 3 or 4 operand match here: |
29b0f896 AM |
6821 | slip through to break. */ |
6822 | } | |
c0f3af97 | 6823 | |
9bb4d860 L |
6824 | /* Check if VEX/EVEX encoding requirements can be satisfied. */ |
6825 | if (VEX_check_encoding (t)) | |
da4977e0 | 6826 | { |
7b94647a | 6827 | specific_error = progress (i.error); |
da4977e0 JB |
6828 | continue; |
6829 | } | |
6830 | ||
9bb4d860 L |
6831 | /* Check if vector operands are valid. */ |
6832 | if (check_VecOperands (t)) | |
5614d22c | 6833 | { |
7b94647a | 6834 | specific_error = progress (i.error); |
5614d22c JB |
6835 | continue; |
6836 | } | |
a683cc34 | 6837 | |
29b0f896 AM |
6838 | /* We've found a match; break out of loop. */ |
6839 | break; | |
6840 | } | |
6841 | ||
7b94647a JB |
6842 | #undef progress |
6843 | ||
29b0f896 AM |
6844 | if (t == current_templates->end) |
6845 | { | |
6846 | /* We found no match. */ | |
a65babc9 | 6847 | const char *err_msg; |
7b94647a | 6848 | switch (specific_error) |
a65babc9 L |
6849 | { |
6850 | default: | |
6851 | abort (); | |
86e026a4 | 6852 | case operand_size_mismatch: |
a65babc9 L |
6853 | err_msg = _("operand size mismatch"); |
6854 | break; | |
6855 | case operand_type_mismatch: | |
6856 | err_msg = _("operand type mismatch"); | |
6857 | break; | |
6858 | case register_type_mismatch: | |
6859 | err_msg = _("register type mismatch"); | |
6860 | break; | |
6861 | case number_of_operands_mismatch: | |
6862 | err_msg = _("number of operands mismatch"); | |
6863 | break; | |
6864 | case invalid_instruction_suffix: | |
6865 | err_msg = _("invalid instruction suffix"); | |
6866 | break; | |
6867 | case bad_imm4: | |
4a2608e3 | 6868 | err_msg = _("constant doesn't fit in 4 bits"); |
a65babc9 | 6869 | break; |
a65babc9 L |
6870 | case unsupported_with_intel_mnemonic: |
6871 | err_msg = _("unsupported with Intel mnemonic"); | |
6872 | break; | |
6873 | case unsupported_syntax: | |
6874 | err_msg = _("unsupported syntax"); | |
6875 | break; | |
6876 | case unsupported: | |
35262a23 | 6877 | as_bad (_("unsupported instruction `%s'"), |
10efe3f6 L |
6878 | current_templates->start->name); |
6879 | return NULL; | |
260cd341 LC |
6880 | case invalid_sib_address: |
6881 | err_msg = _("invalid SIB address"); | |
6882 | break; | |
6c30d220 L |
6883 | case invalid_vsib_address: |
6884 | err_msg = _("invalid VSIB address"); | |
6885 | break; | |
7bab8ab5 JB |
6886 | case invalid_vector_register_set: |
6887 | err_msg = _("mask, index, and destination registers must be distinct"); | |
6888 | break; | |
260cd341 LC |
6889 | case invalid_tmm_register_set: |
6890 | err_msg = _("all tmm registers must be distinct"); | |
6891 | break; | |
0cc78721 CL |
6892 | case invalid_dest_and_src_register_set: |
6893 | err_msg = _("destination and source registers must be distinct"); | |
6894 | break; | |
6c30d220 L |
6895 | case unsupported_vector_index_register: |
6896 | err_msg = _("unsupported vector index register"); | |
6897 | break; | |
43234a1e L |
6898 | case unsupported_broadcast: |
6899 | err_msg = _("unsupported broadcast"); | |
6900 | break; | |
43234a1e L |
6901 | case broadcast_needed: |
6902 | err_msg = _("broadcast is needed for operand of such type"); | |
6903 | break; | |
6904 | case unsupported_masking: | |
6905 | err_msg = _("unsupported masking"); | |
6906 | break; | |
6907 | case mask_not_on_destination: | |
6908 | err_msg = _("mask not on destination operand"); | |
6909 | break; | |
6910 | case no_default_mask: | |
6911 | err_msg = _("default mask isn't allowed"); | |
6912 | break; | |
6913 | case unsupported_rc_sae: | |
6914 | err_msg = _("unsupported static rounding/sae"); | |
6915 | break; | |
43234a1e L |
6916 | case invalid_register_operand: |
6917 | err_msg = _("invalid register operand"); | |
6918 | break; | |
a65babc9 L |
6919 | } |
6920 | as_bad (_("%s for `%s'"), err_msg, | |
891edac4 | 6921 | current_templates->start->name); |
fa99fab2 | 6922 | return NULL; |
29b0f896 | 6923 | } |
252b5132 | 6924 | |
29b0f896 AM |
6925 | if (!quiet_warnings) |
6926 | { | |
6927 | if (!intel_syntax | |
0cfa3eb3 | 6928 | && (i.jumpabsolute != (t->opcode_modifier.jump == JUMP_ABSOLUTE))) |
6f2f06be | 6929 | as_warn (_("indirect %s without `*'"), t->name); |
29b0f896 | 6930 | |
40fb9820 | 6931 | if (t->opcode_modifier.isprefix |
3cd7f3e3 | 6932 | && t->opcode_modifier.mnemonicsize == IGNORESIZE) |
29b0f896 AM |
6933 | { |
6934 | /* Warn them that a data or address size prefix doesn't | |
6935 | affect assembly of the next line of code. */ | |
6936 | as_warn (_("stand-alone `%s' prefix"), t->name); | |
6937 | } | |
6938 | } | |
6939 | ||
6940 | /* Copy the template we found. */ | |
9a182d04 | 6941 | install_template (t); |
539e75ad L |
6942 | |
6943 | if (addr_prefix_disp != -1) | |
6944 | i.tm.operand_types[addr_prefix_disp] | |
6945 | = operand_types[addr_prefix_disp]; | |
6946 | ||
8bd915b7 | 6947 | switch (found_reverse_match) |
29b0f896 | 6948 | { |
8bd915b7 JB |
6949 | case 0: |
6950 | break; | |
6951 | ||
6952 | default: | |
dfd69174 JB |
6953 | /* If we found a reverse match we must alter the opcode direction |
6954 | bit and clear/flip the regmem modifier one. found_reverse_match | |
6955 | holds bits to change (different for int & float insns). */ | |
29b0f896 AM |
6956 | |
6957 | i.tm.base_opcode ^= found_reverse_match; | |
6958 | ||
f5eb1d70 JB |
6959 | i.tm.operand_types[0] = operand_types[i.operands - 1]; |
6960 | i.tm.operand_types[i.operands - 1] = operand_types[0]; | |
dfd69174 JB |
6961 | |
6962 | /* Certain SIMD insns have their load forms specified in the opcode | |
6963 | table, and hence we need to _set_ RegMem instead of clearing it. | |
6964 | We need to avoid setting the bit though on insns like KMOVW. */ | |
6965 | i.tm.opcode_modifier.regmem | |
6966 | = i.tm.opcode_modifier.modrm && i.tm.opcode_modifier.d | |
6967 | && i.tm.operands > 2U - i.tm.opcode_modifier.sse2avx | |
6968 | && !i.tm.opcode_modifier.regmem; | |
8bd915b7 JB |
6969 | break; |
6970 | ||
6971 | case Opcode_VexW: | |
6972 | /* Only the first two register operands need reversing, alongside | |
6973 | flipping VEX.W. */ | |
6974 | i.tm.opcode_modifier.vexw ^= VEXW0 ^ VEXW1; | |
6975 | ||
6976 | j = i.tm.operand_types[0].bitfield.imm8; | |
6977 | i.tm.operand_types[j] = operand_types[j + 1]; | |
6978 | i.tm.operand_types[j + 1] = operand_types[j]; | |
6979 | break; | |
29b0f896 AM |
6980 | } |
6981 | ||
fa99fab2 | 6982 | return t; |
29b0f896 AM |
6983 | } |
6984 | ||
6985 | static int | |
e3bb37b5 | 6986 | check_string (void) |
29b0f896 | 6987 | { |
51c8edf6 JB |
6988 | unsigned int es_op = i.tm.opcode_modifier.isstring - IS_STRING_ES_OP0; |
6989 | unsigned int op = i.tm.operand_types[0].bitfield.baseindex ? es_op : 0; | |
8dc0818e | 6990 | |
5e042380 | 6991 | if (i.seg[op] != NULL && i.seg[op] != reg_es) |
29b0f896 | 6992 | { |
51c8edf6 JB |
6993 | as_bad (_("`%s' operand %u must use `%ses' segment"), |
6994 | i.tm.name, | |
6995 | intel_syntax ? i.tm.operands - es_op : es_op + 1, | |
6996 | register_prefix); | |
6997 | return 0; | |
29b0f896 | 6998 | } |
51c8edf6 JB |
6999 | |
7000 | /* There's only ever one segment override allowed per instruction. | |
7001 | This instruction possibly has a legal segment override on the | |
7002 | second operand, so copy the segment to where non-string | |
7003 | instructions store it, allowing common code. */ | |
7004 | i.seg[op] = i.seg[1]; | |
7005 | ||
29b0f896 AM |
7006 | return 1; |
7007 | } | |
7008 | ||
7009 | static int | |
543613e9 | 7010 | process_suffix (void) |
29b0f896 | 7011 | { |
5b7c81bd | 7012 | bool is_crc32 = false, is_movx = false; |
8b65b895 | 7013 | |
29b0f896 AM |
7014 | /* If matched instruction specifies an explicit instruction mnemonic |
7015 | suffix, use it. */ | |
673fe0f0 | 7016 | if (i.tm.opcode_modifier.size == SIZE16) |
40fb9820 | 7017 | i.suffix = WORD_MNEM_SUFFIX; |
673fe0f0 | 7018 | else if (i.tm.opcode_modifier.size == SIZE32) |
40fb9820 | 7019 | i.suffix = LONG_MNEM_SUFFIX; |
673fe0f0 | 7020 | else if (i.tm.opcode_modifier.size == SIZE64) |
40fb9820 | 7021 | i.suffix = QWORD_MNEM_SUFFIX; |
13e600d0 | 7022 | else if (i.reg_operands |
c8f8eebc JB |
7023 | && (i.operands > 1 || i.types[0].bitfield.class == Reg) |
7024 | && !i.tm.opcode_modifier.addrprefixopreg) | |
29b0f896 | 7025 | { |
65fca059 | 7026 | unsigned int numop = i.operands; |
389d00a5 JB |
7027 | |
7028 | /* MOVSX/MOVZX */ | |
7029 | is_movx = (i.tm.opcode_modifier.opcodespace == SPACE_0F | |
7030 | && (i.tm.base_opcode | 8) == 0xbe) | |
7031 | || (i.tm.opcode_modifier.opcodespace == SPACE_BASE | |
7032 | && i.tm.base_opcode == 0x63 | |
7033 | && i.tm.cpu_flags.bitfield.cpu64); | |
7034 | ||
8b65b895 | 7035 | /* CRC32 */ |
389d00a5 JB |
7036 | is_crc32 = (i.tm.base_opcode == 0xf0 |
7037 | && i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
8b65b895 | 7038 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2); |
65fca059 JB |
7039 | |
7040 | /* movsx/movzx want only their source operand considered here, for the | |
7041 | ambiguity checking below. The suffix will be replaced afterwards | |
7042 | to represent the destination (register). */ | |
389d00a5 | 7043 | if (is_movx && (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63)) |
65fca059 JB |
7044 | --i.operands; |
7045 | ||
643bb870 | 7046 | /* crc32 needs REX.W set regardless of suffix / source operand size. */ |
8b65b895 | 7047 | if (is_crc32 && i.tm.operand_types[1].bitfield.qword) |
643bb870 JB |
7048 | i.rex |= REX_W; |
7049 | ||
29b0f896 | 7050 | /* If there's no instruction mnemonic suffix we try to invent one |
13e600d0 | 7051 | based on GPR operands. */ |
29b0f896 AM |
7052 | if (!i.suffix) |
7053 | { | |
7054 | /* We take i.suffix from the last register operand specified, | |
7055 | Destination register type is more significant than source | |
381d071f L |
7056 | register type. crc32 in SSE4.2 prefers source register |
7057 | type. */ | |
8b65b895 | 7058 | unsigned int op = is_crc32 ? 1 : i.operands; |
20592a94 | 7059 | |
1a035124 JB |
7060 | while (op--) |
7061 | if (i.tm.operand_types[op].bitfield.instance == InstanceNone | |
7062 | || i.tm.operand_types[op].bitfield.instance == Accum) | |
7063 | { | |
7064 | if (i.types[op].bitfield.class != Reg) | |
7065 | continue; | |
7066 | if (i.types[op].bitfield.byte) | |
7067 | i.suffix = BYTE_MNEM_SUFFIX; | |
7068 | else if (i.types[op].bitfield.word) | |
7069 | i.suffix = WORD_MNEM_SUFFIX; | |
7070 | else if (i.types[op].bitfield.dword) | |
7071 | i.suffix = LONG_MNEM_SUFFIX; | |
7072 | else if (i.types[op].bitfield.qword) | |
7073 | i.suffix = QWORD_MNEM_SUFFIX; | |
7074 | else | |
7075 | continue; | |
7076 | break; | |
7077 | } | |
65fca059 JB |
7078 | |
7079 | /* As an exception, movsx/movzx silently default to a byte source | |
7080 | in AT&T mode. */ | |
389d00a5 | 7081 | if (is_movx && i.tm.opcode_modifier.w && !i.suffix && !intel_syntax) |
65fca059 | 7082 | i.suffix = BYTE_MNEM_SUFFIX; |
29b0f896 AM |
7083 | } |
7084 | else if (i.suffix == BYTE_MNEM_SUFFIX) | |
7085 | { | |
1cb0ab18 | 7086 | if (!check_byte_reg ()) |
29b0f896 AM |
7087 | return 0; |
7088 | } | |
7089 | else if (i.suffix == LONG_MNEM_SUFFIX) | |
7090 | { | |
1cb0ab18 | 7091 | if (!check_long_reg ()) |
29b0f896 AM |
7092 | return 0; |
7093 | } | |
7094 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
7095 | { | |
1cb0ab18 | 7096 | if (!check_qword_reg ()) |
29b0f896 AM |
7097 | return 0; |
7098 | } | |
7099 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
7100 | { | |
1cb0ab18 | 7101 | if (!check_word_reg ()) |
29b0f896 AM |
7102 | return 0; |
7103 | } | |
3cd7f3e3 L |
7104 | else if (intel_syntax |
7105 | && i.tm.opcode_modifier.mnemonicsize == IGNORESIZE) | |
29b0f896 AM |
7106 | /* Do nothing if the instruction is going to ignore the prefix. */ |
7107 | ; | |
7108 | else | |
7109 | abort (); | |
65fca059 JB |
7110 | |
7111 | /* Undo the movsx/movzx change done above. */ | |
7112 | i.operands = numop; | |
29b0f896 | 7113 | } |
3cd7f3e3 L |
7114 | else if (i.tm.opcode_modifier.mnemonicsize == DEFAULTSIZE |
7115 | && !i.suffix) | |
29b0f896 | 7116 | { |
13e600d0 JB |
7117 | i.suffix = stackop_size; |
7118 | if (stackop_size == LONG_MNEM_SUFFIX) | |
06f74c5c L |
7119 | { |
7120 | /* stackop_size is set to LONG_MNEM_SUFFIX for the | |
7121 | .code16gcc directive to support 16-bit mode with | |
7122 | 32-bit address. For IRET without a suffix, generate | |
7123 | 16-bit IRET (opcode 0xcf) to return from an interrupt | |
7124 | handler. */ | |
13e600d0 JB |
7125 | if (i.tm.base_opcode == 0xcf) |
7126 | { | |
7127 | i.suffix = WORD_MNEM_SUFFIX; | |
7128 | as_warn (_("generating 16-bit `iret' for .code16gcc directive")); | |
7129 | } | |
7130 | /* Warn about changed behavior for segment register push/pop. */ | |
7131 | else if ((i.tm.base_opcode | 1) == 0x07) | |
7132 | as_warn (_("generating 32-bit `%s', unlike earlier gas versions"), | |
7133 | i.tm.name); | |
06f74c5c | 7134 | } |
29b0f896 | 7135 | } |
c006a730 | 7136 | else if (!i.suffix |
0cfa3eb3 JB |
7137 | && (i.tm.opcode_modifier.jump == JUMP_ABSOLUTE |
7138 | || i.tm.opcode_modifier.jump == JUMP_BYTE | |
7139 | || i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT | |
389d00a5 JB |
7140 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
7141 | && i.tm.base_opcode == 0x01 /* [ls][gi]dt */ | |
64e74474 | 7142 | && i.tm.extension_opcode <= 3))) |
9306ca4a JB |
7143 | { |
7144 | switch (flag_code) | |
7145 | { | |
7146 | case CODE_64BIT: | |
40fb9820 | 7147 | if (!i.tm.opcode_modifier.no_qsuf) |
9306ca4a | 7148 | { |
828c2a25 JB |
7149 | if (i.tm.opcode_modifier.jump == JUMP_BYTE |
7150 | || i.tm.opcode_modifier.no_lsuf) | |
7151 | i.suffix = QWORD_MNEM_SUFFIX; | |
9306ca4a JB |
7152 | break; |
7153 | } | |
1a0670f3 | 7154 | /* Fall through. */ |
9306ca4a | 7155 | case CODE_32BIT: |
40fb9820 | 7156 | if (!i.tm.opcode_modifier.no_lsuf) |
9306ca4a JB |
7157 | i.suffix = LONG_MNEM_SUFFIX; |
7158 | break; | |
7159 | case CODE_16BIT: | |
40fb9820 | 7160 | if (!i.tm.opcode_modifier.no_wsuf) |
9306ca4a JB |
7161 | i.suffix = WORD_MNEM_SUFFIX; |
7162 | break; | |
7163 | } | |
7164 | } | |
252b5132 | 7165 | |
c006a730 | 7166 | if (!i.suffix |
3cd7f3e3 | 7167 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 JB |
7168 | /* Also cover lret/retf/iret in 64-bit mode. */ |
7169 | || (flag_code == CODE_64BIT | |
7170 | && !i.tm.opcode_modifier.no_lsuf | |
7171 | && !i.tm.opcode_modifier.no_qsuf)) | |
3cd7f3e3 | 7172 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
8bbb3ad8 JB |
7173 | /* Explicit sizing prefixes are assumed to disambiguate insns. */ |
7174 | && !i.prefix[DATA_PREFIX] && !(i.prefix[REX_PREFIX] & REX_W) | |
62b3f548 JB |
7175 | /* Accept FLDENV et al without suffix. */ |
7176 | && (i.tm.opcode_modifier.no_ssuf || i.tm.opcode_modifier.floatmf)) | |
29b0f896 | 7177 | { |
6c0946d0 | 7178 | unsigned int suffixes, evex = 0; |
c006a730 JB |
7179 | |
7180 | suffixes = !i.tm.opcode_modifier.no_bsuf; | |
7181 | if (!i.tm.opcode_modifier.no_wsuf) | |
7182 | suffixes |= 1 << 1; | |
7183 | if (!i.tm.opcode_modifier.no_lsuf) | |
7184 | suffixes |= 1 << 2; | |
7185 | if (!i.tm.opcode_modifier.no_ldsuf) | |
7186 | suffixes |= 1 << 3; | |
7187 | if (!i.tm.opcode_modifier.no_ssuf) | |
7188 | suffixes |= 1 << 4; | |
7189 | if (flag_code == CODE_64BIT && !i.tm.opcode_modifier.no_qsuf) | |
7190 | suffixes |= 1 << 5; | |
7191 | ||
6c0946d0 JB |
7192 | /* For [XYZ]MMWORD operands inspect operand sizes. While generally |
7193 | also suitable for AT&T syntax mode, it was requested that this be | |
7194 | restricted to just Intel syntax. */ | |
a5748e0d JB |
7195 | if (intel_syntax && is_any_vex_encoding (&i.tm) |
7196 | && !i.broadcast.type && !i.broadcast.bytes) | |
6c0946d0 | 7197 | { |
b9915cbc | 7198 | unsigned int op; |
6c0946d0 | 7199 | |
b9915cbc | 7200 | for (op = 0; op < i.tm.operands; ++op) |
6c0946d0 | 7201 | { |
b9915cbc JB |
7202 | if (is_evex_encoding (&i.tm) |
7203 | && !cpu_arch_flags.bitfield.cpuavx512vl) | |
6c0946d0 | 7204 | { |
b9915cbc JB |
7205 | if (i.tm.operand_types[op].bitfield.ymmword) |
7206 | i.tm.operand_types[op].bitfield.xmmword = 0; | |
7207 | if (i.tm.operand_types[op].bitfield.zmmword) | |
7208 | i.tm.operand_types[op].bitfield.ymmword = 0; | |
7209 | if (!i.tm.opcode_modifier.evex | |
7210 | || i.tm.opcode_modifier.evex == EVEXDYN) | |
7211 | i.tm.opcode_modifier.evex = EVEX512; | |
7212 | } | |
6c0946d0 | 7213 | |
b9915cbc JB |
7214 | if (i.tm.operand_types[op].bitfield.xmmword |
7215 | + i.tm.operand_types[op].bitfield.ymmword | |
7216 | + i.tm.operand_types[op].bitfield.zmmword < 2) | |
7217 | continue; | |
6c0946d0 | 7218 | |
b9915cbc JB |
7219 | /* Any properly sized operand disambiguates the insn. */ |
7220 | if (i.types[op].bitfield.xmmword | |
7221 | || i.types[op].bitfield.ymmword | |
7222 | || i.types[op].bitfield.zmmword) | |
7223 | { | |
7224 | suffixes &= ~(7 << 6); | |
7225 | evex = 0; | |
7226 | break; | |
7227 | } | |
6c0946d0 | 7228 | |
b9915cbc JB |
7229 | if ((i.flags[op] & Operand_Mem) |
7230 | && i.tm.operand_types[op].bitfield.unspecified) | |
7231 | { | |
7232 | if (i.tm.operand_types[op].bitfield.xmmword) | |
7233 | suffixes |= 1 << 6; | |
7234 | if (i.tm.operand_types[op].bitfield.ymmword) | |
7235 | suffixes |= 1 << 7; | |
7236 | if (i.tm.operand_types[op].bitfield.zmmword) | |
7237 | suffixes |= 1 << 8; | |
7238 | if (is_evex_encoding (&i.tm)) | |
7239 | evex = EVEX512; | |
6c0946d0 JB |
7240 | } |
7241 | } | |
7242 | } | |
7243 | ||
7244 | /* Are multiple suffixes / operand sizes allowed? */ | |
c006a730 | 7245 | if (suffixes & (suffixes - 1)) |
9306ca4a | 7246 | { |
873494c8 | 7247 | if (intel_syntax |
3cd7f3e3 | 7248 | && (i.tm.opcode_modifier.mnemonicsize != DEFAULTSIZE |
873494c8 | 7249 | || operand_check == check_error)) |
9306ca4a | 7250 | { |
c006a730 | 7251 | as_bad (_("ambiguous operand size for `%s'"), i.tm.name); |
9306ca4a JB |
7252 | return 0; |
7253 | } | |
c006a730 | 7254 | if (operand_check == check_error) |
9306ca4a | 7255 | { |
c006a730 JB |
7256 | as_bad (_("no instruction mnemonic suffix given and " |
7257 | "no register operands; can't size `%s'"), i.tm.name); | |
9306ca4a JB |
7258 | return 0; |
7259 | } | |
c006a730 | 7260 | if (operand_check == check_warning) |
873494c8 JB |
7261 | as_warn (_("%s; using default for `%s'"), |
7262 | intel_syntax | |
7263 | ? _("ambiguous operand size") | |
7264 | : _("no instruction mnemonic suffix given and " | |
7265 | "no register operands"), | |
7266 | i.tm.name); | |
c006a730 JB |
7267 | |
7268 | if (i.tm.opcode_modifier.floatmf) | |
7269 | i.suffix = SHORT_MNEM_SUFFIX; | |
389d00a5 | 7270 | else if (is_movx) |
65fca059 | 7271 | /* handled below */; |
6c0946d0 JB |
7272 | else if (evex) |
7273 | i.tm.opcode_modifier.evex = evex; | |
c006a730 JB |
7274 | else if (flag_code == CODE_16BIT) |
7275 | i.suffix = WORD_MNEM_SUFFIX; | |
1a035124 | 7276 | else if (!i.tm.opcode_modifier.no_lsuf) |
c006a730 | 7277 | i.suffix = LONG_MNEM_SUFFIX; |
1a035124 JB |
7278 | else |
7279 | i.suffix = QWORD_MNEM_SUFFIX; | |
9306ca4a | 7280 | } |
29b0f896 | 7281 | } |
252b5132 | 7282 | |
389d00a5 | 7283 | if (is_movx) |
65fca059 JB |
7284 | { |
7285 | /* In Intel syntax, movsx/movzx must have a "suffix" (checked above). | |
7286 | In AT&T syntax, if there is no suffix (warned about above), the default | |
7287 | will be byte extension. */ | |
7288 | if (i.tm.opcode_modifier.w && i.suffix && i.suffix != BYTE_MNEM_SUFFIX) | |
7289 | i.tm.base_opcode |= 1; | |
7290 | ||
7291 | /* For further processing, the suffix should represent the destination | |
7292 | (register). This is already the case when one was used with | |
7293 | mov[sz][bw]*, but we need to replace it for mov[sz]x, or if there was | |
7294 | no suffix to begin with. */ | |
7295 | if (i.tm.opcode_modifier.w || i.tm.base_opcode == 0x63 || !i.suffix) | |
7296 | { | |
7297 | if (i.types[1].bitfield.word) | |
7298 | i.suffix = WORD_MNEM_SUFFIX; | |
7299 | else if (i.types[1].bitfield.qword) | |
7300 | i.suffix = QWORD_MNEM_SUFFIX; | |
7301 | else | |
7302 | i.suffix = LONG_MNEM_SUFFIX; | |
7303 | ||
7304 | i.tm.opcode_modifier.w = 0; | |
7305 | } | |
7306 | } | |
7307 | ||
50128d0c JB |
7308 | if (!i.tm.opcode_modifier.modrm && i.reg_operands && i.tm.operands < 3) |
7309 | i.short_form = (i.tm.operand_types[0].bitfield.class == Reg) | |
7310 | != (i.tm.operand_types[1].bitfield.class == Reg); | |
7311 | ||
d2224064 JB |
7312 | /* Change the opcode based on the operand size given by i.suffix. */ |
7313 | switch (i.suffix) | |
29b0f896 | 7314 | { |
d2224064 JB |
7315 | /* Size floating point instruction. */ |
7316 | case LONG_MNEM_SUFFIX: | |
7317 | if (i.tm.opcode_modifier.floatmf) | |
7318 | { | |
7319 | i.tm.base_opcode ^= 4; | |
7320 | break; | |
7321 | } | |
7322 | /* fall through */ | |
7323 | case WORD_MNEM_SUFFIX: | |
7324 | case QWORD_MNEM_SUFFIX: | |
29b0f896 | 7325 | /* It's not a byte, select word/dword operation. */ |
40fb9820 | 7326 | if (i.tm.opcode_modifier.w) |
29b0f896 | 7327 | { |
50128d0c | 7328 | if (i.short_form) |
29b0f896 AM |
7329 | i.tm.base_opcode |= 8; |
7330 | else | |
7331 | i.tm.base_opcode |= 1; | |
7332 | } | |
d2224064 JB |
7333 | /* fall through */ |
7334 | case SHORT_MNEM_SUFFIX: | |
29b0f896 AM |
7335 | /* Now select between word & dword operations via the operand |
7336 | size prefix, except for instructions that will ignore this | |
7337 | prefix anyway. */ | |
c8f8eebc | 7338 | if (i.suffix != QWORD_MNEM_SUFFIX |
3cd7f3e3 | 7339 | && i.tm.opcode_modifier.mnemonicsize != IGNORESIZE |
c8f8eebc JB |
7340 | && !i.tm.opcode_modifier.floatmf |
7341 | && !is_any_vex_encoding (&i.tm) | |
7342 | && ((i.suffix == LONG_MNEM_SUFFIX) == (flag_code == CODE_16BIT) | |
7343 | || (flag_code == CODE_64BIT | |
7344 | && i.tm.opcode_modifier.jump == JUMP_BYTE))) | |
24eab124 AM |
7345 | { |
7346 | unsigned int prefix = DATA_PREFIX_OPCODE; | |
543613e9 | 7347 | |
0cfa3eb3 | 7348 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) /* jcxz, loop */ |
29b0f896 | 7349 | prefix = ADDR_PREFIX_OPCODE; |
252b5132 | 7350 | |
29b0f896 AM |
7351 | if (!add_prefix (prefix)) |
7352 | return 0; | |
24eab124 | 7353 | } |
252b5132 | 7354 | |
29b0f896 AM |
7355 | /* Set mode64 for an operand. */ |
7356 | if (i.suffix == QWORD_MNEM_SUFFIX | |
9146926a | 7357 | && flag_code == CODE_64BIT |
d2224064 | 7358 | && !i.tm.opcode_modifier.norex64 |
4ed21b58 | 7359 | && !i.tm.opcode_modifier.vexw |
46e883c5 | 7360 | /* Special case for xchg %rax,%rax. It is NOP and doesn't |
d2224064 JB |
7361 | need rex64. */ |
7362 | && ! (i.operands == 2 | |
7363 | && i.tm.base_opcode == 0x90 | |
7364 | && i.tm.extension_opcode == None | |
75e5731b JB |
7365 | && i.types[0].bitfield.instance == Accum |
7366 | && i.types[0].bitfield.qword | |
7367 | && i.types[1].bitfield.instance == Accum | |
7368 | && i.types[1].bitfield.qword)) | |
d2224064 | 7369 | i.rex |= REX_W; |
3e73aa7c | 7370 | |
d2224064 | 7371 | break; |
8bbb3ad8 JB |
7372 | |
7373 | case 0: | |
f9a6a8f0 | 7374 | /* Select word/dword/qword operation with explicit data sizing prefix |
8bbb3ad8 JB |
7375 | when there are no suitable register operands. */ |
7376 | if (i.tm.opcode_modifier.w | |
7377 | && (i.prefix[DATA_PREFIX] || (i.prefix[REX_PREFIX] & REX_W)) | |
7378 | && (!i.reg_operands | |
7379 | || (i.reg_operands == 1 | |
7380 | /* ShiftCount */ | |
7381 | && (i.tm.operand_types[0].bitfield.instance == RegC | |
7382 | /* InOutPortReg */ | |
7383 | || i.tm.operand_types[0].bitfield.instance == RegD | |
7384 | || i.tm.operand_types[1].bitfield.instance == RegD | |
7385 | /* CRC32 */ | |
8b65b895 | 7386 | || is_crc32)))) |
8bbb3ad8 JB |
7387 | i.tm.base_opcode |= 1; |
7388 | break; | |
29b0f896 | 7389 | } |
7ecd2f8b | 7390 | |
c8f8eebc | 7391 | if (i.tm.opcode_modifier.addrprefixopreg) |
c0a30a9f | 7392 | { |
c8f8eebc JB |
7393 | gas_assert (!i.suffix); |
7394 | gas_assert (i.reg_operands); | |
c0a30a9f | 7395 | |
c8f8eebc JB |
7396 | if (i.tm.operand_types[0].bitfield.instance == Accum |
7397 | || i.operands == 1) | |
7398 | { | |
7399 | /* The address size override prefix changes the size of the | |
7400 | first operand. */ | |
7401 | if (flag_code == CODE_64BIT | |
7402 | && i.op[0].regs->reg_type.bitfield.word) | |
7403 | { | |
7404 | as_bad (_("16-bit addressing unavailable for `%s'"), | |
7405 | i.tm.name); | |
7406 | return 0; | |
7407 | } | |
7408 | ||
7409 | if ((flag_code == CODE_32BIT | |
7410 | ? i.op[0].regs->reg_type.bitfield.word | |
7411 | : i.op[0].regs->reg_type.bitfield.dword) | |
7412 | && !add_prefix (ADDR_PREFIX_OPCODE)) | |
7413 | return 0; | |
7414 | } | |
c0a30a9f L |
7415 | else |
7416 | { | |
c8f8eebc JB |
7417 | /* Check invalid register operand when the address size override |
7418 | prefix changes the size of register operands. */ | |
7419 | unsigned int op; | |
7420 | enum { need_word, need_dword, need_qword } need; | |
7421 | ||
27f13469 | 7422 | /* Check the register operand for the address size prefix if |
b3a3496f | 7423 | the memory operand has no real registers, like symbol, DISP |
829f3fe1 | 7424 | or bogus (x32-only) symbol(%rip) when symbol(%eip) is meant. */ |
27f13469 L |
7425 | if (i.mem_operands == 1 |
7426 | && i.reg_operands == 1 | |
7427 | && i.operands == 2 | |
27f13469 | 7428 | && i.types[1].bitfield.class == Reg |
b3a3496f L |
7429 | && (flag_code == CODE_32BIT |
7430 | ? i.op[1].regs->reg_type.bitfield.word | |
7431 | : i.op[1].regs->reg_type.bitfield.dword) | |
7432 | && ((i.base_reg == NULL && i.index_reg == NULL) | |
829f3fe1 JB |
7433 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
7434 | || (x86_elf_abi == X86_64_X32_ABI | |
7435 | && i.base_reg | |
b3a3496f L |
7436 | && i.base_reg->reg_num == RegIP |
7437 | && i.base_reg->reg_type.bitfield.qword)) | |
829f3fe1 JB |
7438 | #else |
7439 | || 0) | |
7440 | #endif | |
27f13469 L |
7441 | && !add_prefix (ADDR_PREFIX_OPCODE)) |
7442 | return 0; | |
7443 | ||
c8f8eebc JB |
7444 | if (flag_code == CODE_32BIT) |
7445 | need = i.prefix[ADDR_PREFIX] ? need_word : need_dword; | |
7446 | else if (i.prefix[ADDR_PREFIX]) | |
c0a30a9f L |
7447 | need = need_dword; |
7448 | else | |
7449 | need = flag_code == CODE_64BIT ? need_qword : need_word; | |
c0a30a9f | 7450 | |
c8f8eebc JB |
7451 | for (op = 0; op < i.operands; op++) |
7452 | { | |
7453 | if (i.types[op].bitfield.class != Reg) | |
7454 | continue; | |
7455 | ||
7456 | switch (need) | |
7457 | { | |
7458 | case need_word: | |
7459 | if (i.op[op].regs->reg_type.bitfield.word) | |
7460 | continue; | |
7461 | break; | |
7462 | case need_dword: | |
7463 | if (i.op[op].regs->reg_type.bitfield.dword) | |
7464 | continue; | |
7465 | break; | |
7466 | case need_qword: | |
7467 | if (i.op[op].regs->reg_type.bitfield.qword) | |
7468 | continue; | |
7469 | break; | |
7470 | } | |
7471 | ||
7472 | as_bad (_("invalid register operand size for `%s'"), | |
7473 | i.tm.name); | |
7474 | return 0; | |
7475 | } | |
7476 | } | |
c0a30a9f L |
7477 | } |
7478 | ||
29b0f896 AM |
7479 | return 1; |
7480 | } | |
3e73aa7c | 7481 | |
29b0f896 | 7482 | static int |
543613e9 | 7483 | check_byte_reg (void) |
29b0f896 AM |
7484 | { |
7485 | int op; | |
543613e9 | 7486 | |
29b0f896 AM |
7487 | for (op = i.operands; --op >= 0;) |
7488 | { | |
dc821c5f | 7489 | /* Skip non-register operands. */ |
bab6aec1 | 7490 | if (i.types[op].bitfield.class != Reg) |
dc821c5f JB |
7491 | continue; |
7492 | ||
29b0f896 AM |
7493 | /* If this is an eight bit register, it's OK. If it's the 16 or |
7494 | 32 bit version of an eight bit register, we will just use the | |
7495 | low portion, and that's OK too. */ | |
dc821c5f | 7496 | if (i.types[op].bitfield.byte) |
29b0f896 AM |
7497 | continue; |
7498 | ||
5a819eb9 | 7499 | /* I/O port address operands are OK too. */ |
75e5731b JB |
7500 | if (i.tm.operand_types[op].bitfield.instance == RegD |
7501 | && i.tm.operand_types[op].bitfield.word) | |
5a819eb9 JB |
7502 | continue; |
7503 | ||
9706160a | 7504 | /* crc32 only wants its source operand checked here. */ |
389d00a5 JB |
7505 | if (i.tm.base_opcode == 0xf0 |
7506 | && i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
8b65b895 L |
7507 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_0XF2 |
7508 | && op != 0) | |
9344ff29 L |
7509 | continue; |
7510 | ||
29b0f896 | 7511 | /* Any other register is bad. */ |
73c76375 JB |
7512 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7513 | register_prefix, i.op[op].regs->reg_name, | |
7514 | i.tm.name, i.suffix); | |
7515 | return 0; | |
29b0f896 AM |
7516 | } |
7517 | return 1; | |
7518 | } | |
7519 | ||
7520 | static int | |
e3bb37b5 | 7521 | check_long_reg (void) |
29b0f896 AM |
7522 | { |
7523 | int op; | |
7524 | ||
7525 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7526 | /* Skip non-register operands. */ |
bab6aec1 | 7527 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7528 | continue; |
29b0f896 AM |
7529 | /* Reject eight bit registers, except where the template requires |
7530 | them. (eg. movzb) */ | |
dc821c5f | 7531 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7532 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7533 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7534 | && (i.tm.operand_types[op].bitfield.word |
7535 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7536 | { |
a540244d L |
7537 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7538 | register_prefix, | |
29b0f896 AM |
7539 | i.op[op].regs->reg_name, |
7540 | i.tm.name, | |
7541 | i.suffix); | |
7542 | return 0; | |
7543 | } | |
be4c5e58 L |
7544 | /* Error if the e prefix on a general reg is missing. */ |
7545 | else if (i.types[op].bitfield.word | |
bab6aec1 | 7546 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7547 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7548 | && i.tm.operand_types[op].bitfield.dword) |
29b0f896 | 7549 | { |
be4c5e58 L |
7550 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7551 | register_prefix, i.op[op].regs->reg_name, | |
7552 | i.suffix); | |
7553 | return 0; | |
252b5132 | 7554 | } |
e4630f71 | 7555 | /* Warn if the r prefix on a general reg is present. */ |
dc821c5f | 7556 | else if (i.types[op].bitfield.qword |
bab6aec1 | 7557 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7558 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7559 | && i.tm.operand_types[op].bitfield.dword) |
252b5132 | 7560 | { |
1cb0ab18 JB |
7561 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7562 | register_prefix, i.op[op].regs->reg_name, i.suffix); | |
7563 | return 0; | |
29b0f896 AM |
7564 | } |
7565 | return 1; | |
7566 | } | |
252b5132 | 7567 | |
29b0f896 | 7568 | static int |
e3bb37b5 | 7569 | check_qword_reg (void) |
29b0f896 AM |
7570 | { |
7571 | int op; | |
252b5132 | 7572 | |
29b0f896 | 7573 | for (op = i.operands; --op >= 0; ) |
dc821c5f | 7574 | /* Skip non-register operands. */ |
bab6aec1 | 7575 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7576 | continue; |
29b0f896 AM |
7577 | /* Reject eight bit registers, except where the template requires |
7578 | them. (eg. movzb) */ | |
dc821c5f | 7579 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7580 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7581 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7582 | && (i.tm.operand_types[op].bitfield.word |
7583 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7584 | { |
a540244d L |
7585 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7586 | register_prefix, | |
29b0f896 AM |
7587 | i.op[op].regs->reg_name, |
7588 | i.tm.name, | |
7589 | i.suffix); | |
7590 | return 0; | |
7591 | } | |
e4630f71 | 7592 | /* Warn if the r prefix on a general reg is missing. */ |
dc821c5f JB |
7593 | else if ((i.types[op].bitfield.word |
7594 | || i.types[op].bitfield.dword) | |
bab6aec1 | 7595 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7596 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7597 | && i.tm.operand_types[op].bitfield.qword) |
29b0f896 AM |
7598 | { |
7599 | /* Prohibit these changes in the 64bit mode, since the | |
7600 | lowering is more complicated. */ | |
1cb0ab18 JB |
7601 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7602 | register_prefix, i.op[op].regs->reg_name, i.suffix); | |
7603 | return 0; | |
252b5132 | 7604 | } |
29b0f896 AM |
7605 | return 1; |
7606 | } | |
252b5132 | 7607 | |
29b0f896 | 7608 | static int |
e3bb37b5 | 7609 | check_word_reg (void) |
29b0f896 AM |
7610 | { |
7611 | int op; | |
7612 | for (op = i.operands; --op >= 0;) | |
dc821c5f | 7613 | /* Skip non-register operands. */ |
bab6aec1 | 7614 | if (i.types[op].bitfield.class != Reg) |
dc821c5f | 7615 | continue; |
29b0f896 AM |
7616 | /* Reject eight bit registers, except where the template requires |
7617 | them. (eg. movzb) */ | |
dc821c5f | 7618 | else if (i.types[op].bitfield.byte |
bab6aec1 | 7619 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7620 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f JB |
7621 | && (i.tm.operand_types[op].bitfield.word |
7622 | || i.tm.operand_types[op].bitfield.dword)) | |
29b0f896 | 7623 | { |
a540244d L |
7624 | as_bad (_("`%s%s' not allowed with `%s%c'"), |
7625 | register_prefix, | |
29b0f896 AM |
7626 | i.op[op].regs->reg_name, |
7627 | i.tm.name, | |
7628 | i.suffix); | |
7629 | return 0; | |
7630 | } | |
9706160a JB |
7631 | /* Error if the e or r prefix on a general reg is present. */ |
7632 | else if ((i.types[op].bitfield.dword | |
dc821c5f | 7633 | || i.types[op].bitfield.qword) |
bab6aec1 | 7634 | && (i.tm.operand_types[op].bitfield.class == Reg |
75e5731b | 7635 | || i.tm.operand_types[op].bitfield.instance == Accum) |
dc821c5f | 7636 | && i.tm.operand_types[op].bitfield.word) |
252b5132 | 7637 | { |
9706160a JB |
7638 | as_bad (_("incorrect register `%s%s' used with `%c' suffix"), |
7639 | register_prefix, i.op[op].regs->reg_name, | |
7640 | i.suffix); | |
7641 | return 0; | |
29b0f896 AM |
7642 | } |
7643 | return 1; | |
7644 | } | |
252b5132 | 7645 | |
29b0f896 | 7646 | static int |
40fb9820 | 7647 | update_imm (unsigned int j) |
29b0f896 | 7648 | { |
bc0844ae | 7649 | i386_operand_type overlap = i.types[j]; |
40fb9820 L |
7650 | if ((overlap.bitfield.imm8 |
7651 | || overlap.bitfield.imm8s | |
7652 | || overlap.bitfield.imm16 | |
7653 | || overlap.bitfield.imm32 | |
7654 | || overlap.bitfield.imm32s | |
7655 | || overlap.bitfield.imm64) | |
0dfbf9d7 L |
7656 | && !operand_type_equal (&overlap, &imm8) |
7657 | && !operand_type_equal (&overlap, &imm8s) | |
7658 | && !operand_type_equal (&overlap, &imm16) | |
7659 | && !operand_type_equal (&overlap, &imm32) | |
7660 | && !operand_type_equal (&overlap, &imm32s) | |
7661 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 AM |
7662 | { |
7663 | if (i.suffix) | |
7664 | { | |
40fb9820 L |
7665 | i386_operand_type temp; |
7666 | ||
0dfbf9d7 | 7667 | operand_type_set (&temp, 0); |
7ab9ffdd | 7668 | if (i.suffix == BYTE_MNEM_SUFFIX) |
40fb9820 L |
7669 | { |
7670 | temp.bitfield.imm8 = overlap.bitfield.imm8; | |
7671 | temp.bitfield.imm8s = overlap.bitfield.imm8s; | |
7672 | } | |
7673 | else if (i.suffix == WORD_MNEM_SUFFIX) | |
7674 | temp.bitfield.imm16 = overlap.bitfield.imm16; | |
7675 | else if (i.suffix == QWORD_MNEM_SUFFIX) | |
7676 | { | |
7677 | temp.bitfield.imm64 = overlap.bitfield.imm64; | |
7678 | temp.bitfield.imm32s = overlap.bitfield.imm32s; | |
7679 | } | |
7680 | else | |
7681 | temp.bitfield.imm32 = overlap.bitfield.imm32; | |
7682 | overlap = temp; | |
29b0f896 | 7683 | } |
0dfbf9d7 L |
7684 | else if (operand_type_equal (&overlap, &imm16_32_32s) |
7685 | || operand_type_equal (&overlap, &imm16_32) | |
7686 | || operand_type_equal (&overlap, &imm16_32s)) | |
29b0f896 | 7687 | { |
40fb9820 | 7688 | if ((flag_code == CODE_16BIT) ^ (i.prefix[DATA_PREFIX] != 0)) |
65da13b5 | 7689 | overlap = imm16; |
40fb9820 | 7690 | else |
65da13b5 | 7691 | overlap = imm32s; |
29b0f896 | 7692 | } |
8bbb3ad8 JB |
7693 | else if (i.prefix[REX_PREFIX] & REX_W) |
7694 | overlap = operand_type_and (overlap, imm32s); | |
7695 | else if (i.prefix[DATA_PREFIX]) | |
7696 | overlap = operand_type_and (overlap, | |
7697 | flag_code != CODE_16BIT ? imm16 : imm32); | |
0dfbf9d7 L |
7698 | if (!operand_type_equal (&overlap, &imm8) |
7699 | && !operand_type_equal (&overlap, &imm8s) | |
7700 | && !operand_type_equal (&overlap, &imm16) | |
7701 | && !operand_type_equal (&overlap, &imm32) | |
7702 | && !operand_type_equal (&overlap, &imm32s) | |
7703 | && !operand_type_equal (&overlap, &imm64)) | |
29b0f896 | 7704 | { |
4eed87de AM |
7705 | as_bad (_("no instruction mnemonic suffix given; " |
7706 | "can't determine immediate size")); | |
29b0f896 AM |
7707 | return 0; |
7708 | } | |
7709 | } | |
40fb9820 | 7710 | i.types[j] = overlap; |
29b0f896 | 7711 | |
40fb9820 L |
7712 | return 1; |
7713 | } | |
7714 | ||
7715 | static int | |
7716 | finalize_imm (void) | |
7717 | { | |
bc0844ae | 7718 | unsigned int j, n; |
29b0f896 | 7719 | |
bc0844ae L |
7720 | /* Update the first 2 immediate operands. */ |
7721 | n = i.operands > 2 ? 2 : i.operands; | |
7722 | if (n) | |
7723 | { | |
7724 | for (j = 0; j < n; j++) | |
7725 | if (update_imm (j) == 0) | |
7726 | return 0; | |
40fb9820 | 7727 | |
bc0844ae L |
7728 | /* The 3rd operand can't be immediate operand. */ |
7729 | gas_assert (operand_type_check (i.types[2], imm) == 0); | |
7730 | } | |
29b0f896 AM |
7731 | |
7732 | return 1; | |
7733 | } | |
7734 | ||
7735 | static int | |
e3bb37b5 | 7736 | process_operands (void) |
29b0f896 AM |
7737 | { |
7738 | /* Default segment register this instruction will use for memory | |
7739 | accesses. 0 means unknown. This is only for optimizing out | |
7740 | unnecessary segment overrides. */ | |
5e042380 | 7741 | const reg_entry *default_seg = NULL; |
29b0f896 | 7742 | |
a5aeccd9 JB |
7743 | if (i.tm.opcode_modifier.sse2avx) |
7744 | { | |
7745 | /* Legacy encoded insns allow explicit REX prefixes, so these prefixes | |
7746 | need converting. */ | |
7747 | i.rex |= i.prefix[REX_PREFIX] & (REX_W | REX_R | REX_X | REX_B); | |
7748 | i.prefix[REX_PREFIX] = 0; | |
7749 | i.rex_encoding = 0; | |
7750 | } | |
c423d21a JB |
7751 | /* ImmExt should be processed after SSE2AVX. */ |
7752 | else if (i.tm.opcode_modifier.immext) | |
7753 | process_immext (); | |
a5aeccd9 | 7754 | |
2426c15f | 7755 | if (i.tm.opcode_modifier.sse2avx && i.tm.opcode_modifier.vexvvvv) |
29b0f896 | 7756 | { |
91d6fa6a NC |
7757 | unsigned int dupl = i.operands; |
7758 | unsigned int dest = dupl - 1; | |
9fcfb3d7 L |
7759 | unsigned int j; |
7760 | ||
c0f3af97 | 7761 | /* The destination must be an xmm register. */ |
9c2799c2 | 7762 | gas_assert (i.reg_operands |
91d6fa6a | 7763 | && MAX_OPERANDS > dupl |
7ab9ffdd | 7764 | && operand_type_equal (&i.types[dest], ®xmm)); |
c0f3af97 | 7765 | |
75e5731b | 7766 | if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7767 | && i.tm.operand_types[0].bitfield.xmmword) |
e2ec9d29 | 7768 | { |
8cd7925b | 7769 | if (i.tm.opcode_modifier.vexsources == VEX3SOURCES) |
c0f3af97 L |
7770 | { |
7771 | /* Keep xmm0 for instructions with VEX prefix and 3 | |
7772 | sources. */ | |
75e5731b | 7773 | i.tm.operand_types[0].bitfield.instance = InstanceNone; |
3528c362 | 7774 | i.tm.operand_types[0].bitfield.class = RegSIMD; |
c0f3af97 L |
7775 | goto duplicate; |
7776 | } | |
e2ec9d29 | 7777 | else |
c0f3af97 L |
7778 | { |
7779 | /* We remove the first xmm0 and keep the number of | |
7780 | operands unchanged, which in fact duplicates the | |
7781 | destination. */ | |
7782 | for (j = 1; j < i.operands; j++) | |
7783 | { | |
7784 | i.op[j - 1] = i.op[j]; | |
7785 | i.types[j - 1] = i.types[j]; | |
7786 | i.tm.operand_types[j - 1] = i.tm.operand_types[j]; | |
8dc0818e | 7787 | i.flags[j - 1] = i.flags[j]; |
c0f3af97 L |
7788 | } |
7789 | } | |
7790 | } | |
7791 | else if (i.tm.opcode_modifier.implicit1stxmm0) | |
7ab9ffdd | 7792 | { |
91d6fa6a | 7793 | gas_assert ((MAX_OPERANDS - 1) > dupl |
8cd7925b L |
7794 | && (i.tm.opcode_modifier.vexsources |
7795 | == VEX3SOURCES)); | |
c0f3af97 L |
7796 | |
7797 | /* Add the implicit xmm0 for instructions with VEX prefix | |
7798 | and 3 sources. */ | |
7799 | for (j = i.operands; j > 0; j--) | |
7800 | { | |
7801 | i.op[j] = i.op[j - 1]; | |
7802 | i.types[j] = i.types[j - 1]; | |
7803 | i.tm.operand_types[j] = i.tm.operand_types[j - 1]; | |
8dc0818e | 7804 | i.flags[j] = i.flags[j - 1]; |
c0f3af97 L |
7805 | } |
7806 | i.op[0].regs | |
629310ab | 7807 | = (const reg_entry *) str_hash_find (reg_hash, "xmm0"); |
7ab9ffdd | 7808 | i.types[0] = regxmm; |
c0f3af97 L |
7809 | i.tm.operand_types[0] = regxmm; |
7810 | ||
7811 | i.operands += 2; | |
7812 | i.reg_operands += 2; | |
7813 | i.tm.operands += 2; | |
7814 | ||
91d6fa6a | 7815 | dupl++; |
c0f3af97 | 7816 | dest++; |
91d6fa6a NC |
7817 | i.op[dupl] = i.op[dest]; |
7818 | i.types[dupl] = i.types[dest]; | |
7819 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7820 | i.flags[dupl] = i.flags[dest]; |
e2ec9d29 | 7821 | } |
c0f3af97 L |
7822 | else |
7823 | { | |
dc1e8a47 | 7824 | duplicate: |
c0f3af97 L |
7825 | i.operands++; |
7826 | i.reg_operands++; | |
7827 | i.tm.operands++; | |
7828 | ||
91d6fa6a NC |
7829 | i.op[dupl] = i.op[dest]; |
7830 | i.types[dupl] = i.types[dest]; | |
7831 | i.tm.operand_types[dupl] = i.tm.operand_types[dest]; | |
8dc0818e | 7832 | i.flags[dupl] = i.flags[dest]; |
c0f3af97 L |
7833 | } |
7834 | ||
7835 | if (i.tm.opcode_modifier.immext) | |
7836 | process_immext (); | |
7837 | } | |
75e5731b | 7838 | else if (i.tm.operand_types[0].bitfield.instance == Accum |
1b54b8d7 | 7839 | && i.tm.operand_types[0].bitfield.xmmword) |
c0f3af97 L |
7840 | { |
7841 | unsigned int j; | |
7842 | ||
9fcfb3d7 L |
7843 | for (j = 1; j < i.operands; j++) |
7844 | { | |
7845 | i.op[j - 1] = i.op[j]; | |
7846 | i.types[j - 1] = i.types[j]; | |
7847 | ||
7848 | /* We need to adjust fields in i.tm since they are used by | |
7849 | build_modrm_byte. */ | |
7850 | i.tm.operand_types [j - 1] = i.tm.operand_types [j]; | |
8dc0818e JB |
7851 | |
7852 | i.flags[j - 1] = i.flags[j]; | |
9fcfb3d7 L |
7853 | } |
7854 | ||
e2ec9d29 L |
7855 | i.operands--; |
7856 | i.reg_operands--; | |
e2ec9d29 L |
7857 | i.tm.operands--; |
7858 | } | |
920d2ddc IT |
7859 | else if (i.tm.opcode_modifier.implicitquadgroup) |
7860 | { | |
a477a8c4 JB |
7861 | unsigned int regnum, first_reg_in_group, last_reg_in_group; |
7862 | ||
920d2ddc | 7863 | /* The second operand must be {x,y,z}mmN, where N is a multiple of 4. */ |
3528c362 | 7864 | gas_assert (i.operands >= 2 && i.types[1].bitfield.class == RegSIMD); |
a477a8c4 JB |
7865 | regnum = register_number (i.op[1].regs); |
7866 | first_reg_in_group = regnum & ~3; | |
7867 | last_reg_in_group = first_reg_in_group + 3; | |
7868 | if (regnum != first_reg_in_group) | |
7869 | as_warn (_("source register `%s%s' implicitly denotes" | |
7870 | " `%s%.3s%u' to `%s%.3s%u' source group in `%s'"), | |
7871 | register_prefix, i.op[1].regs->reg_name, | |
7872 | register_prefix, i.op[1].regs->reg_name, first_reg_in_group, | |
7873 | register_prefix, i.op[1].regs->reg_name, last_reg_in_group, | |
7874 | i.tm.name); | |
7875 | } | |
e2ec9d29 L |
7876 | else if (i.tm.opcode_modifier.regkludge) |
7877 | { | |
7878 | /* The imul $imm, %reg instruction is converted into | |
7879 | imul $imm, %reg, %reg, and the clr %reg instruction | |
7880 | is converted into xor %reg, %reg. */ | |
7881 | ||
7882 | unsigned int first_reg_op; | |
7883 | ||
7884 | if (operand_type_check (i.types[0], reg)) | |
7885 | first_reg_op = 0; | |
7886 | else | |
7887 | first_reg_op = 1; | |
7888 | /* Pretend we saw the extra register operand. */ | |
9c2799c2 | 7889 | gas_assert (i.reg_operands == 1 |
7ab9ffdd | 7890 | && i.op[first_reg_op + 1].regs == 0); |
e2ec9d29 L |
7891 | i.op[first_reg_op + 1].regs = i.op[first_reg_op].regs; |
7892 | i.types[first_reg_op + 1] = i.types[first_reg_op]; | |
7893 | i.operands++; | |
7894 | i.reg_operands++; | |
29b0f896 AM |
7895 | } |
7896 | ||
85b80b0f | 7897 | if (i.tm.opcode_modifier.modrm) |
29b0f896 AM |
7898 | { |
7899 | /* The opcode is completed (modulo i.tm.extension_opcode which | |
52271982 AM |
7900 | must be put into the modrm byte). Now, we make the modrm and |
7901 | index base bytes based on all the info we've collected. */ | |
29b0f896 AM |
7902 | |
7903 | default_seg = build_modrm_byte (); | |
7904 | } | |
00cee14f | 7905 | else if (i.types[0].bitfield.class == SReg) |
85b80b0f JB |
7906 | { |
7907 | if (flag_code != CODE_64BIT | |
7908 | ? i.tm.base_opcode == POP_SEG_SHORT | |
7909 | && i.op[0].regs->reg_num == 1 | |
389d00a5 | 7910 | : (i.tm.base_opcode | 1) == (POP_SEG386_SHORT & 0xff) |
85b80b0f JB |
7911 | && i.op[0].regs->reg_num < 4) |
7912 | { | |
7913 | as_bad (_("you can't `%s %s%s'"), | |
7914 | i.tm.name, register_prefix, i.op[0].regs->reg_name); | |
7915 | return 0; | |
7916 | } | |
389d00a5 JB |
7917 | if (i.op[0].regs->reg_num > 3 |
7918 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE ) | |
85b80b0f | 7919 | { |
389d00a5 JB |
7920 | i.tm.base_opcode ^= (POP_SEG_SHORT ^ POP_SEG386_SHORT) & 0xff; |
7921 | i.tm.opcode_modifier.opcodespace = SPACE_0F; | |
85b80b0f JB |
7922 | } |
7923 | i.tm.base_opcode |= (i.op[0].regs->reg_num << 3); | |
7924 | } | |
389d00a5 JB |
7925 | else if (i.tm.opcode_modifier.opcodespace == SPACE_BASE |
7926 | && (i.tm.base_opcode & ~3) == MOV_AX_DISP32) | |
29b0f896 | 7927 | { |
5e042380 | 7928 | default_seg = reg_ds; |
29b0f896 | 7929 | } |
40fb9820 | 7930 | else if (i.tm.opcode_modifier.isstring) |
29b0f896 AM |
7931 | { |
7932 | /* For the string instructions that allow a segment override | |
7933 | on one of their operands, the default segment is ds. */ | |
5e042380 | 7934 | default_seg = reg_ds; |
29b0f896 | 7935 | } |
50128d0c | 7936 | else if (i.short_form) |
85b80b0f JB |
7937 | { |
7938 | /* The register or float register operand is in operand | |
7939 | 0 or 1. */ | |
bab6aec1 | 7940 | unsigned int op = i.tm.operand_types[0].bitfield.class != Reg; |
85b80b0f JB |
7941 | |
7942 | /* Register goes in low 3 bits of opcode. */ | |
7943 | i.tm.base_opcode |= i.op[op].regs->reg_num; | |
7944 | if ((i.op[op].regs->reg_flags & RegRex) != 0) | |
7945 | i.rex |= REX_B; | |
7946 | if (!quiet_warnings && i.tm.opcode_modifier.ugh) | |
7947 | { | |
7948 | /* Warn about some common errors, but press on regardless. | |
7949 | The first case can be generated by gcc (<= 2.8.1). */ | |
7950 | if (i.operands == 2) | |
7951 | { | |
7952 | /* Reversed arguments on faddp, fsubp, etc. */ | |
7953 | as_warn (_("translating to `%s %s%s,%s%s'"), i.tm.name, | |
7954 | register_prefix, i.op[!intel_syntax].regs->reg_name, | |
7955 | register_prefix, i.op[intel_syntax].regs->reg_name); | |
7956 | } | |
7957 | else | |
7958 | { | |
7959 | /* Extraneous `l' suffix on fp insn. */ | |
7960 | as_warn (_("translating to `%s %s%s'"), i.tm.name, | |
7961 | register_prefix, i.op[0].regs->reg_name); | |
7962 | } | |
7963 | } | |
7964 | } | |
29b0f896 | 7965 | |
514a8bb0 | 7966 | if ((i.seg[0] || i.prefix[SEG_PREFIX]) |
514a8bb0 | 7967 | && i.tm.base_opcode == 0x8d /* lea */ |
35648716 | 7968 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
514a8bb0 | 7969 | && !is_any_vex_encoding(&i.tm)) |
92334ad2 JB |
7970 | { |
7971 | if (!quiet_warnings) | |
7972 | as_warn (_("segment override on `%s' is ineffectual"), i.tm.name); | |
7973 | if (optimize) | |
7974 | { | |
7975 | i.seg[0] = NULL; | |
7976 | i.prefix[SEG_PREFIX] = 0; | |
7977 | } | |
7978 | } | |
52271982 AM |
7979 | |
7980 | /* If a segment was explicitly specified, and the specified segment | |
b6773884 JB |
7981 | is neither the default nor the one already recorded from a prefix, |
7982 | use an opcode prefix to select it. If we never figured out what | |
7983 | the default segment is, then default_seg will be zero at this | |
7984 | point, and the specified segment prefix will always be used. */ | |
7985 | if (i.seg[0] | |
7986 | && i.seg[0] != default_seg | |
5e042380 | 7987 | && i386_seg_prefixes[i.seg[0]->reg_num] != i.prefix[SEG_PREFIX]) |
29b0f896 | 7988 | { |
5e042380 | 7989 | if (!add_prefix (i386_seg_prefixes[i.seg[0]->reg_num])) |
29b0f896 AM |
7990 | return 0; |
7991 | } | |
7992 | return 1; | |
7993 | } | |
7994 | ||
a5aeccd9 | 7995 | static INLINE void set_rex_vrex (const reg_entry *r, unsigned int rex_bit, |
5b7c81bd | 7996 | bool do_sse2avx) |
a5aeccd9 JB |
7997 | { |
7998 | if (r->reg_flags & RegRex) | |
7999 | { | |
8000 | if (i.rex & rex_bit) | |
8001 | as_bad (_("same type of prefix used twice")); | |
8002 | i.rex |= rex_bit; | |
8003 | } | |
8004 | else if (do_sse2avx && (i.rex & rex_bit) && i.vex.register_specifier) | |
8005 | { | |
8006 | gas_assert (i.vex.register_specifier == r); | |
8007 | i.vex.register_specifier += 8; | |
8008 | } | |
8009 | ||
8010 | if (r->reg_flags & RegVRex) | |
8011 | i.vrex |= rex_bit; | |
8012 | } | |
8013 | ||
5e042380 | 8014 | static const reg_entry * |
e3bb37b5 | 8015 | build_modrm_byte (void) |
29b0f896 | 8016 | { |
5e042380 | 8017 | const reg_entry *default_seg = NULL; |
c0f3af97 | 8018 | unsigned int source, dest; |
8cd7925b | 8019 | int vex_3_sources; |
c0f3af97 | 8020 | |
8cd7925b | 8021 | vex_3_sources = i.tm.opcode_modifier.vexsources == VEX3SOURCES; |
c0f3af97 L |
8022 | if (vex_3_sources) |
8023 | { | |
91d6fa6a | 8024 | unsigned int nds, reg_slot; |
4c2c6516 | 8025 | expressionS *exp; |
c0f3af97 | 8026 | |
6b8d3588 | 8027 | dest = i.operands - 1; |
c0f3af97 | 8028 | nds = dest - 1; |
922d8de8 | 8029 | |
a683cc34 | 8030 | /* There are 2 kinds of instructions: |
bed3d976 | 8031 | 1. 5 operands: 4 register operands or 3 register operands |
9d3bf266 | 8032 | plus 1 memory operand plus one Imm4 operand, VexXDS, and |
bed3d976 | 8033 | VexW0 or VexW1. The destination must be either XMM, YMM or |
43234a1e | 8034 | ZMM register. |
bed3d976 | 8035 | 2. 4 operands: 4 register operands or 3 register operands |
2f1bada2 | 8036 | plus 1 memory operand, with VexXDS. */ |
922d8de8 | 8037 | gas_assert ((i.reg_operands == 4 |
bed3d976 JB |
8038 | || (i.reg_operands == 3 && i.mem_operands == 1)) |
8039 | && i.tm.opcode_modifier.vexvvvv == VEXXDS | |
dcd7e323 | 8040 | && i.tm.opcode_modifier.vexw |
3528c362 | 8041 | && i.tm.operand_types[dest].bitfield.class == RegSIMD); |
a683cc34 | 8042 | |
48db9223 JB |
8043 | /* If VexW1 is set, the first non-immediate operand is the source and |
8044 | the second non-immediate one is encoded in the immediate operand. */ | |
8045 | if (i.tm.opcode_modifier.vexw == VEXW1) | |
8046 | { | |
8047 | source = i.imm_operands; | |
8048 | reg_slot = i.imm_operands + 1; | |
8049 | } | |
8050 | else | |
8051 | { | |
8052 | source = i.imm_operands + 1; | |
8053 | reg_slot = i.imm_operands; | |
8054 | } | |
8055 | ||
a683cc34 | 8056 | if (i.imm_operands == 0) |
bed3d976 JB |
8057 | { |
8058 | /* When there is no immediate operand, generate an 8bit | |
8059 | immediate operand to encode the first operand. */ | |
8060 | exp = &im_expressions[i.imm_operands++]; | |
8061 | i.op[i.operands].imms = exp; | |
8062 | i.types[i.operands] = imm8; | |
8063 | i.operands++; | |
8064 | ||
3528c362 | 8065 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
bed3d976 JB |
8066 | exp->X_op = O_constant; |
8067 | exp->X_add_number = register_number (i.op[reg_slot].regs) << 4; | |
43234a1e L |
8068 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
8069 | } | |
922d8de8 | 8070 | else |
bed3d976 | 8071 | { |
9d3bf266 JB |
8072 | gas_assert (i.imm_operands == 1); |
8073 | gas_assert (fits_in_imm4 (i.op[0].imms->X_add_number)); | |
8074 | gas_assert (!i.tm.opcode_modifier.immext); | |
a683cc34 | 8075 | |
9d3bf266 JB |
8076 | /* Turn on Imm8 again so that output_imm will generate it. */ |
8077 | i.types[0].bitfield.imm8 = 1; | |
bed3d976 | 8078 | |
3528c362 | 8079 | gas_assert (i.tm.operand_types[reg_slot].bitfield.class == RegSIMD); |
9d3bf266 | 8080 | i.op[0].imms->X_add_number |
bed3d976 | 8081 | |= register_number (i.op[reg_slot].regs) << 4; |
43234a1e | 8082 | gas_assert ((i.op[reg_slot].regs->reg_flags & RegVRex) == 0); |
bed3d976 | 8083 | } |
a683cc34 | 8084 | |
3528c362 | 8085 | gas_assert (i.tm.operand_types[nds].bitfield.class == RegSIMD); |
dae39acc | 8086 | i.vex.register_specifier = i.op[nds].regs; |
c0f3af97 L |
8087 | } |
8088 | else | |
8089 | source = dest = 0; | |
29b0f896 AM |
8090 | |
8091 | /* i.reg_operands MUST be the number of real register operands; | |
c0f3af97 L |
8092 | implicit registers do not count. If there are 3 register |
8093 | operands, it must be a instruction with VexNDS. For a | |
8094 | instruction with VexNDD, the destination register is encoded | |
8095 | in VEX prefix. If there are 4 register operands, it must be | |
8096 | a instruction with VEX prefix and 3 sources. */ | |
7ab9ffdd L |
8097 | if (i.mem_operands == 0 |
8098 | && ((i.reg_operands == 2 | |
2426c15f | 8099 | && i.tm.opcode_modifier.vexvvvv <= VEXXDS) |
7ab9ffdd | 8100 | || (i.reg_operands == 3 |
2426c15f | 8101 | && i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd | 8102 | || (i.reg_operands == 4 && vex_3_sources))) |
29b0f896 | 8103 | { |
cab737b9 L |
8104 | switch (i.operands) |
8105 | { | |
8106 | case 2: | |
8107 | source = 0; | |
8108 | break; | |
8109 | case 3: | |
c81128dc L |
8110 | /* When there are 3 operands, one of them may be immediate, |
8111 | which may be the first or the last operand. Otherwise, | |
c0f3af97 L |
8112 | the first operand must be shift count register (cl) or it |
8113 | is an instruction with VexNDS. */ | |
9c2799c2 | 8114 | gas_assert (i.imm_operands == 1 |
7ab9ffdd | 8115 | || (i.imm_operands == 0 |
2426c15f | 8116 | && (i.tm.opcode_modifier.vexvvvv == VEXXDS |
75e5731b JB |
8117 | || (i.types[0].bitfield.instance == RegC |
8118 | && i.types[0].bitfield.byte)))); | |
40fb9820 | 8119 | if (operand_type_check (i.types[0], imm) |
75e5731b JB |
8120 | || (i.types[0].bitfield.instance == RegC |
8121 | && i.types[0].bitfield.byte)) | |
40fb9820 L |
8122 | source = 1; |
8123 | else | |
8124 | source = 0; | |
cab737b9 L |
8125 | break; |
8126 | case 4: | |
368d64cc L |
8127 | /* When there are 4 operands, the first two must be 8bit |
8128 | immediate operands. The source operand will be the 3rd | |
c0f3af97 L |
8129 | one. |
8130 | ||
8131 | For instructions with VexNDS, if the first operand | |
8132 | an imm8, the source operand is the 2nd one. If the last | |
8133 | operand is imm8, the source operand is the first one. */ | |
9c2799c2 | 8134 | gas_assert ((i.imm_operands == 2 |
7ab9ffdd L |
8135 | && i.types[0].bitfield.imm8 |
8136 | && i.types[1].bitfield.imm8) | |
2426c15f | 8137 | || (i.tm.opcode_modifier.vexvvvv == VEXXDS |
7ab9ffdd L |
8138 | && i.imm_operands == 1 |
8139 | && (i.types[0].bitfield.imm8 | |
cf665fee | 8140 | || i.types[i.operands - 1].bitfield.imm8))); |
9f2670f2 L |
8141 | if (i.imm_operands == 2) |
8142 | source = 2; | |
8143 | else | |
c0f3af97 L |
8144 | { |
8145 | if (i.types[0].bitfield.imm8) | |
8146 | source = 1; | |
8147 | else | |
8148 | source = 0; | |
8149 | } | |
c0f3af97 L |
8150 | break; |
8151 | case 5: | |
cf665fee JB |
8152 | gas_assert (!is_evex_encoding (&i.tm)); |
8153 | gas_assert (i.imm_operands == 1 && vex_3_sources); | |
cab737b9 L |
8154 | break; |
8155 | default: | |
8156 | abort (); | |
8157 | } | |
8158 | ||
c0f3af97 L |
8159 | if (!vex_3_sources) |
8160 | { | |
8161 | dest = source + 1; | |
8162 | ||
2426c15f | 8163 | if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
c0f3af97 | 8164 | { |
43234a1e | 8165 | /* For instructions with VexNDS, the register-only source |
c5d0745b | 8166 | operand must be a 32/64bit integer, XMM, YMM, ZMM, or mask |
dfd69174 | 8167 | register. It is encoded in VEX prefix. */ |
f12dc422 L |
8168 | |
8169 | i386_operand_type op; | |
8170 | unsigned int vvvv; | |
8171 | ||
c2ecccb3 L |
8172 | /* Swap two source operands if needed. */ |
8173 | if (i.tm.opcode_modifier.swapsources) | |
f12dc422 L |
8174 | { |
8175 | vvvv = source; | |
8176 | source = dest; | |
8177 | } | |
8178 | else | |
8179 | vvvv = dest; | |
8180 | ||
8181 | op = i.tm.operand_types[vvvv]; | |
c0f3af97 | 8182 | if ((dest + 1) >= i.operands |
bab6aec1 | 8183 | || ((op.bitfield.class != Reg |
dc821c5f | 8184 | || (!op.bitfield.dword && !op.bitfield.qword)) |
3528c362 | 8185 | && op.bitfield.class != RegSIMD |
c0f327b8 | 8186 | && op.bitfield.class != RegMask)) |
c0f3af97 | 8187 | abort (); |
f12dc422 | 8188 | i.vex.register_specifier = i.op[vvvv].regs; |
c0f3af97 L |
8189 | dest++; |
8190 | } | |
8191 | } | |
29b0f896 AM |
8192 | |
8193 | i.rm.mode = 3; | |
dfd69174 JB |
8194 | /* One of the register operands will be encoded in the i.rm.reg |
8195 | field, the other in the combined i.rm.mode and i.rm.regmem | |
29b0f896 AM |
8196 | fields. If no form of this instruction supports a memory |
8197 | destination operand, then we assume the source operand may | |
8198 | sometimes be a memory operand and so we need to store the | |
8199 | destination in the i.rm.reg field. */ | |
dfd69174 | 8200 | if (!i.tm.opcode_modifier.regmem |
40fb9820 | 8201 | && operand_type_check (i.tm.operand_types[dest], anymem) == 0) |
29b0f896 AM |
8202 | { |
8203 | i.rm.reg = i.op[dest].regs->reg_num; | |
8204 | i.rm.regmem = i.op[source].regs->reg_num; | |
a5aeccd9 | 8205 | set_rex_vrex (i.op[dest].regs, REX_R, i.tm.opcode_modifier.sse2avx); |
5b7c81bd | 8206 | set_rex_vrex (i.op[source].regs, REX_B, false); |
29b0f896 AM |
8207 | } |
8208 | else | |
8209 | { | |
8210 | i.rm.reg = i.op[source].regs->reg_num; | |
8211 | i.rm.regmem = i.op[dest].regs->reg_num; | |
a5aeccd9 | 8212 | set_rex_vrex (i.op[dest].regs, REX_B, i.tm.opcode_modifier.sse2avx); |
5b7c81bd | 8213 | set_rex_vrex (i.op[source].regs, REX_R, false); |
29b0f896 | 8214 | } |
e0c7f900 | 8215 | if (flag_code != CODE_64BIT && (i.rex & REX_R)) |
c4a530c5 | 8216 | { |
4a5c67ed | 8217 | if (i.types[!i.tm.opcode_modifier.regmem].bitfield.class != RegCR) |
c4a530c5 | 8218 | abort (); |
e0c7f900 | 8219 | i.rex &= ~REX_R; |
c4a530c5 JB |
8220 | add_prefix (LOCK_PREFIX_OPCODE); |
8221 | } | |
29b0f896 AM |
8222 | } |
8223 | else | |
8224 | { /* If it's not 2 reg operands... */ | |
c0f3af97 L |
8225 | unsigned int mem; |
8226 | ||
29b0f896 AM |
8227 | if (i.mem_operands) |
8228 | { | |
8229 | unsigned int fake_zero_displacement = 0; | |
99018f42 | 8230 | unsigned int op; |
4eed87de | 8231 | |
7ab9ffdd | 8232 | for (op = 0; op < i.operands; op++) |
8dc0818e | 8233 | if (i.flags[op] & Operand_Mem) |
7ab9ffdd | 8234 | break; |
7ab9ffdd | 8235 | gas_assert (op < i.operands); |
29b0f896 | 8236 | |
63112cd6 | 8237 | if (i.tm.opcode_modifier.sib) |
6c30d220 | 8238 | { |
260cd341 LC |
8239 | /* The index register of VSIB shouldn't be RegIZ. */ |
8240 | if (i.tm.opcode_modifier.sib != SIBMEM | |
8241 | && i.index_reg->reg_num == RegIZ) | |
6c30d220 L |
8242 | abort (); |
8243 | ||
8244 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
8245 | if (!i.base_reg) | |
8246 | { | |
8247 | i.sib.base = NO_BASE_REGISTER; | |
8248 | i.sib.scale = i.log2_scale_factor; | |
2f2be86b | 8249 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
a775efc8 | 8250 | i.types[op].bitfield.disp32 = 1; |
6c30d220 | 8251 | } |
260cd341 LC |
8252 | |
8253 | /* Since the mandatory SIB always has index register, so | |
8254 | the code logic remains unchanged. The non-mandatory SIB | |
8255 | without index register is allowed and will be handled | |
8256 | later. */ | |
8257 | if (i.index_reg) | |
8258 | { | |
8259 | if (i.index_reg->reg_num == RegIZ) | |
8260 | i.sib.index = NO_INDEX_REGISTER; | |
8261 | else | |
8262 | i.sib.index = i.index_reg->reg_num; | |
5b7c81bd | 8263 | set_rex_vrex (i.index_reg, REX_X, false); |
260cd341 | 8264 | } |
6c30d220 L |
8265 | } |
8266 | ||
5e042380 | 8267 | default_seg = reg_ds; |
29b0f896 AM |
8268 | |
8269 | if (i.base_reg == 0) | |
8270 | { | |
8271 | i.rm.mode = 0; | |
8272 | if (!i.disp_operands) | |
9bb129e8 | 8273 | fake_zero_displacement = 1; |
29b0f896 AM |
8274 | if (i.index_reg == 0) |
8275 | { | |
260cd341 LC |
8276 | /* Both check for VSIB and mandatory non-vector SIB. */ |
8277 | gas_assert (!i.tm.opcode_modifier.sib | |
8278 | || i.tm.opcode_modifier.sib == SIBMEM); | |
29b0f896 | 8279 | /* Operand is just <disp> */ |
2f2be86b | 8280 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
20f0a1fc | 8281 | if (flag_code == CODE_64BIT) |
29b0f896 AM |
8282 | { |
8283 | /* 64bit mode overwrites the 32bit absolute | |
8284 | addressing by RIP relative addressing and | |
8285 | absolute addressing is encoded by one of the | |
8286 | redundant SIB forms. */ | |
8287 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
8288 | i.sib.base = NO_BASE_REGISTER; | |
8289 | i.sib.index = NO_INDEX_REGISTER; | |
a775efc8 | 8290 | i.types[op].bitfield.disp32 = 1; |
20f0a1fc | 8291 | } |
fc225355 L |
8292 | else if ((flag_code == CODE_16BIT) |
8293 | ^ (i.prefix[ADDR_PREFIX] != 0)) | |
20f0a1fc NC |
8294 | { |
8295 | i.rm.regmem = NO_BASE_REGISTER_16; | |
2f2be86b | 8296 | i.types[op].bitfield.disp16 = 1; |
20f0a1fc NC |
8297 | } |
8298 | else | |
8299 | { | |
8300 | i.rm.regmem = NO_BASE_REGISTER; | |
2f2be86b | 8301 | i.types[op].bitfield.disp32 = 1; |
29b0f896 AM |
8302 | } |
8303 | } | |
63112cd6 | 8304 | else if (!i.tm.opcode_modifier.sib) |
29b0f896 | 8305 | { |
6c30d220 | 8306 | /* !i.base_reg && i.index_reg */ |
e968fc9b | 8307 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
8308 | i.sib.index = NO_INDEX_REGISTER; |
8309 | else | |
8310 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
8311 | i.sib.base = NO_BASE_REGISTER; |
8312 | i.sib.scale = i.log2_scale_factor; | |
8313 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; | |
2f2be86b | 8314 | i.types[op] = operand_type_and_not (i.types[op], anydisp); |
a775efc8 | 8315 | i.types[op].bitfield.disp32 = 1; |
29b0f896 | 8316 | if ((i.index_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8317 | i.rex |= REX_X; |
29b0f896 AM |
8318 | } |
8319 | } | |
8320 | /* RIP addressing for 64bit mode. */ | |
e968fc9b | 8321 | else if (i.base_reg->reg_num == RegIP) |
29b0f896 | 8322 | { |
63112cd6 | 8323 | gas_assert (!i.tm.opcode_modifier.sib); |
29b0f896 | 8324 | i.rm.regmem = NO_BASE_REGISTER; |
40fb9820 L |
8325 | i.types[op].bitfield.disp8 = 0; |
8326 | i.types[op].bitfield.disp16 = 0; | |
a775efc8 | 8327 | i.types[op].bitfield.disp32 = 1; |
40fb9820 | 8328 | i.types[op].bitfield.disp64 = 0; |
71903a11 | 8329 | i.flags[op] |= Operand_PCrel; |
20f0a1fc NC |
8330 | if (! i.disp_operands) |
8331 | fake_zero_displacement = 1; | |
29b0f896 | 8332 | } |
dc821c5f | 8333 | else if (i.base_reg->reg_type.bitfield.word) |
29b0f896 | 8334 | { |
63112cd6 | 8335 | gas_assert (!i.tm.opcode_modifier.sib); |
29b0f896 AM |
8336 | switch (i.base_reg->reg_num) |
8337 | { | |
8338 | case 3: /* (%bx) */ | |
8339 | if (i.index_reg == 0) | |
8340 | i.rm.regmem = 7; | |
8341 | else /* (%bx,%si) -> 0, or (%bx,%di) -> 1 */ | |
8342 | i.rm.regmem = i.index_reg->reg_num - 6; | |
8343 | break; | |
8344 | case 5: /* (%bp) */ | |
5e042380 | 8345 | default_seg = reg_ss; |
29b0f896 AM |
8346 | if (i.index_reg == 0) |
8347 | { | |
8348 | i.rm.regmem = 6; | |
40fb9820 | 8349 | if (operand_type_check (i.types[op], disp) == 0) |
29b0f896 AM |
8350 | { |
8351 | /* fake (%bp) into 0(%bp) */ | |
41eb8e88 | 8352 | if (i.disp_encoding == disp_encoding_16bit) |
1a02d6b0 L |
8353 | i.types[op].bitfield.disp16 = 1; |
8354 | else | |
8355 | i.types[op].bitfield.disp8 = 1; | |
252b5132 | 8356 | fake_zero_displacement = 1; |
29b0f896 AM |
8357 | } |
8358 | } | |
8359 | else /* (%bp,%si) -> 2, or (%bp,%di) -> 3 */ | |
8360 | i.rm.regmem = i.index_reg->reg_num - 6 + 2; | |
8361 | break; | |
8362 | default: /* (%si) -> 4 or (%di) -> 5 */ | |
8363 | i.rm.regmem = i.base_reg->reg_num - 6 + 4; | |
8364 | } | |
41eb8e88 L |
8365 | if (!fake_zero_displacement |
8366 | && !i.disp_operands | |
8367 | && i.disp_encoding) | |
8368 | { | |
8369 | fake_zero_displacement = 1; | |
8370 | if (i.disp_encoding == disp_encoding_8bit) | |
8371 | i.types[op].bitfield.disp8 = 1; | |
8372 | else | |
8373 | i.types[op].bitfield.disp16 = 1; | |
8374 | } | |
29b0f896 AM |
8375 | i.rm.mode = mode_from_disp_size (i.types[op]); |
8376 | } | |
8377 | else /* i.base_reg and 32/64 bit mode */ | |
8378 | { | |
a9aabc23 | 8379 | if (operand_type_check (i.types[op], disp)) |
40fb9820 | 8380 | { |
73053c1f JB |
8381 | i.types[op].bitfield.disp16 = 0; |
8382 | i.types[op].bitfield.disp64 = 0; | |
a775efc8 | 8383 | i.types[op].bitfield.disp32 = 1; |
40fb9820 | 8384 | } |
20f0a1fc | 8385 | |
63112cd6 | 8386 | if (!i.tm.opcode_modifier.sib) |
6c30d220 | 8387 | i.rm.regmem = i.base_reg->reg_num; |
29b0f896 | 8388 | if ((i.base_reg->reg_flags & RegRex) != 0) |
161a04f6 | 8389 | i.rex |= REX_B; |
29b0f896 AM |
8390 | i.sib.base = i.base_reg->reg_num; |
8391 | /* x86-64 ignores REX prefix bit here to avoid decoder | |
8392 | complications. */ | |
848930b2 JB |
8393 | if (!(i.base_reg->reg_flags & RegRex) |
8394 | && (i.base_reg->reg_num == EBP_REG_NUM | |
8395 | || i.base_reg->reg_num == ESP_REG_NUM)) | |
5e042380 | 8396 | default_seg = reg_ss; |
848930b2 | 8397 | if (i.base_reg->reg_num == 5 && i.disp_operands == 0) |
29b0f896 | 8398 | { |
848930b2 | 8399 | fake_zero_displacement = 1; |
1a02d6b0 L |
8400 | if (i.disp_encoding == disp_encoding_32bit) |
8401 | i.types[op].bitfield.disp32 = 1; | |
8402 | else | |
8403 | i.types[op].bitfield.disp8 = 1; | |
29b0f896 AM |
8404 | } |
8405 | i.sib.scale = i.log2_scale_factor; | |
8406 | if (i.index_reg == 0) | |
8407 | { | |
260cd341 LC |
8408 | /* Only check for VSIB. */ |
8409 | gas_assert (i.tm.opcode_modifier.sib != VECSIB128 | |
8410 | && i.tm.opcode_modifier.sib != VECSIB256 | |
8411 | && i.tm.opcode_modifier.sib != VECSIB512); | |
8412 | ||
29b0f896 AM |
8413 | /* <disp>(%esp) becomes two byte modrm with no index |
8414 | register. We've already stored the code for esp | |
8415 | in i.rm.regmem ie. ESCAPE_TO_TWO_BYTE_ADDRESSING. | |
8416 | Any base register besides %esp will not use the | |
8417 | extra modrm byte. */ | |
8418 | i.sib.index = NO_INDEX_REGISTER; | |
29b0f896 | 8419 | } |
63112cd6 | 8420 | else if (!i.tm.opcode_modifier.sib) |
29b0f896 | 8421 | { |
e968fc9b | 8422 | if (i.index_reg->reg_num == RegIZ) |
db51cc60 L |
8423 | i.sib.index = NO_INDEX_REGISTER; |
8424 | else | |
8425 | i.sib.index = i.index_reg->reg_num; | |
29b0f896 AM |
8426 | i.rm.regmem = ESCAPE_TO_TWO_BYTE_ADDRESSING; |
8427 | if ((i.index_reg->reg_flags & RegRex) != 0) | |
161a04f6 | 8428 | i.rex |= REX_X; |
29b0f896 | 8429 | } |
67a4f2b7 AO |
8430 | |
8431 | if (i.disp_operands | |
8432 | && (i.reloc[op] == BFD_RELOC_386_TLS_DESC_CALL | |
8433 | || i.reloc[op] == BFD_RELOC_X86_64_TLSDESC_CALL)) | |
8434 | i.rm.mode = 0; | |
8435 | else | |
a501d77e L |
8436 | { |
8437 | if (!fake_zero_displacement | |
8438 | && !i.disp_operands | |
8439 | && i.disp_encoding) | |
8440 | { | |
8441 | fake_zero_displacement = 1; | |
8442 | if (i.disp_encoding == disp_encoding_8bit) | |
8443 | i.types[op].bitfield.disp8 = 1; | |
8444 | else | |
8445 | i.types[op].bitfield.disp32 = 1; | |
8446 | } | |
8447 | i.rm.mode = mode_from_disp_size (i.types[op]); | |
8448 | } | |
29b0f896 | 8449 | } |
252b5132 | 8450 | |
29b0f896 AM |
8451 | if (fake_zero_displacement) |
8452 | { | |
8453 | /* Fakes a zero displacement assuming that i.types[op] | |
8454 | holds the correct displacement size. */ | |
8455 | expressionS *exp; | |
8456 | ||
9c2799c2 | 8457 | gas_assert (i.op[op].disps == 0); |
29b0f896 AM |
8458 | exp = &disp_expressions[i.disp_operands++]; |
8459 | i.op[op].disps = exp; | |
8460 | exp->X_op = O_constant; | |
8461 | exp->X_add_number = 0; | |
8462 | exp->X_add_symbol = (symbolS *) 0; | |
8463 | exp->X_op_symbol = (symbolS *) 0; | |
8464 | } | |
c0f3af97 L |
8465 | |
8466 | mem = op; | |
29b0f896 | 8467 | } |
c0f3af97 L |
8468 | else |
8469 | mem = ~0; | |
252b5132 | 8470 | |
8c43a48b | 8471 | if (i.tm.opcode_modifier.vexsources == XOP2SOURCES) |
5dd85c99 SP |
8472 | { |
8473 | if (operand_type_check (i.types[0], imm)) | |
8474 | i.vex.register_specifier = NULL; | |
8475 | else | |
8476 | { | |
8477 | /* VEX.vvvv encodes one of the sources when the first | |
8478 | operand is not an immediate. */ | |
1ef99a7b | 8479 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8480 | i.vex.register_specifier = i.op[0].regs; |
8481 | else | |
8482 | i.vex.register_specifier = i.op[1].regs; | |
8483 | } | |
8484 | ||
8485 | /* Destination is a XMM register encoded in the ModRM.reg | |
8486 | and VEX.R bit. */ | |
8487 | i.rm.reg = i.op[2].regs->reg_num; | |
8488 | if ((i.op[2].regs->reg_flags & RegRex) != 0) | |
8489 | i.rex |= REX_R; | |
8490 | ||
8491 | /* ModRM.rm and VEX.B encodes the other source. */ | |
8492 | if (!i.mem_operands) | |
8493 | { | |
8494 | i.rm.mode = 3; | |
8495 | ||
1ef99a7b | 8496 | if (i.tm.opcode_modifier.vexw == VEXW0) |
5dd85c99 SP |
8497 | i.rm.regmem = i.op[1].regs->reg_num; |
8498 | else | |
8499 | i.rm.regmem = i.op[0].regs->reg_num; | |
8500 | ||
8501 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8502 | i.rex |= REX_B; | |
8503 | } | |
8504 | } | |
2426c15f | 8505 | else if (i.tm.opcode_modifier.vexvvvv == VEXLWP) |
f88c9eb0 SP |
8506 | { |
8507 | i.vex.register_specifier = i.op[2].regs; | |
8508 | if (!i.mem_operands) | |
8509 | { | |
8510 | i.rm.mode = 3; | |
8511 | i.rm.regmem = i.op[1].regs->reg_num; | |
8512 | if ((i.op[1].regs->reg_flags & RegRex) != 0) | |
8513 | i.rex |= REX_B; | |
8514 | } | |
8515 | } | |
29b0f896 AM |
8516 | /* Fill in i.rm.reg or i.rm.regmem field with register operand |
8517 | (if any) based on i.tm.extension_opcode. Again, we must be | |
8518 | careful to make sure that segment/control/debug/test/MMX | |
8519 | registers are coded into the i.rm.reg field. */ | |
f88c9eb0 | 8520 | else if (i.reg_operands) |
29b0f896 | 8521 | { |
99018f42 | 8522 | unsigned int op; |
7ab9ffdd L |
8523 | unsigned int vex_reg = ~0; |
8524 | ||
8525 | for (op = 0; op < i.operands; op++) | |
921eafea L |
8526 | if (i.types[op].bitfield.class == Reg |
8527 | || i.types[op].bitfield.class == RegBND | |
8528 | || i.types[op].bitfield.class == RegMask | |
8529 | || i.types[op].bitfield.class == SReg | |
8530 | || i.types[op].bitfield.class == RegCR | |
8531 | || i.types[op].bitfield.class == RegDR | |
8532 | || i.types[op].bitfield.class == RegTR | |
8533 | || i.types[op].bitfield.class == RegSIMD | |
8534 | || i.types[op].bitfield.class == RegMMX) | |
8535 | break; | |
c0209578 | 8536 | |
7ab9ffdd L |
8537 | if (vex_3_sources) |
8538 | op = dest; | |
2426c15f | 8539 | else if (i.tm.opcode_modifier.vexvvvv == VEXXDS) |
7ab9ffdd L |
8540 | { |
8541 | /* For instructions with VexNDS, the register-only | |
8542 | source operand is encoded in VEX prefix. */ | |
8543 | gas_assert (mem != (unsigned int) ~0); | |
c0f3af97 | 8544 | |
7ab9ffdd | 8545 | if (op > mem) |
c0f3af97 | 8546 | { |
7ab9ffdd L |
8547 | vex_reg = op++; |
8548 | gas_assert (op < i.operands); | |
c0f3af97 L |
8549 | } |
8550 | else | |
c0f3af97 | 8551 | { |
f12dc422 L |
8552 | /* Check register-only source operand when two source |
8553 | operands are swapped. */ | |
8554 | if (!i.tm.operand_types[op].bitfield.baseindex | |
8555 | && i.tm.operand_types[op + 1].bitfield.baseindex) | |
8556 | { | |
8557 | vex_reg = op; | |
8558 | op += 2; | |
8559 | gas_assert (mem == (vex_reg + 1) | |
8560 | && op < i.operands); | |
8561 | } | |
8562 | else | |
8563 | { | |
8564 | vex_reg = op + 1; | |
8565 | gas_assert (vex_reg < i.operands); | |
8566 | } | |
c0f3af97 | 8567 | } |
7ab9ffdd | 8568 | } |
2426c15f | 8569 | else if (i.tm.opcode_modifier.vexvvvv == VEXNDD) |
7ab9ffdd | 8570 | { |
f12dc422 | 8571 | /* For instructions with VexNDD, the register destination |
7ab9ffdd | 8572 | is encoded in VEX prefix. */ |
f12dc422 L |
8573 | if (i.mem_operands == 0) |
8574 | { | |
8575 | /* There is no memory operand. */ | |
8576 | gas_assert ((op + 2) == i.operands); | |
8577 | vex_reg = op + 1; | |
8578 | } | |
8579 | else | |
8d63c93e | 8580 | { |
ed438a93 JB |
8581 | /* There are only 2 non-immediate operands. */ |
8582 | gas_assert (op < i.imm_operands + 2 | |
8583 | && i.operands == i.imm_operands + 2); | |
8584 | vex_reg = i.imm_operands + 1; | |
f12dc422 | 8585 | } |
7ab9ffdd L |
8586 | } |
8587 | else | |
8588 | gas_assert (op < i.operands); | |
99018f42 | 8589 | |
7ab9ffdd L |
8590 | if (vex_reg != (unsigned int) ~0) |
8591 | { | |
f12dc422 | 8592 | i386_operand_type *type = &i.tm.operand_types[vex_reg]; |
7ab9ffdd | 8593 | |
bab6aec1 | 8594 | if ((type->bitfield.class != Reg |
dc821c5f | 8595 | || (!type->bitfield.dword && !type->bitfield.qword)) |
3528c362 | 8596 | && type->bitfield.class != RegSIMD |
c0f327b8 | 8597 | && type->bitfield.class != RegMask) |
7ab9ffdd | 8598 | abort (); |
f88c9eb0 | 8599 | |
7ab9ffdd L |
8600 | i.vex.register_specifier = i.op[vex_reg].regs; |
8601 | } | |
8602 | ||
1b9f0c97 L |
8603 | /* Don't set OP operand twice. */ |
8604 | if (vex_reg != op) | |
7ab9ffdd | 8605 | { |
1b9f0c97 L |
8606 | /* If there is an extension opcode to put here, the |
8607 | register number must be put into the regmem field. */ | |
8608 | if (i.tm.extension_opcode != None) | |
8609 | { | |
8610 | i.rm.regmem = i.op[op].regs->reg_num; | |
a5aeccd9 JB |
8611 | set_rex_vrex (i.op[op].regs, REX_B, |
8612 | i.tm.opcode_modifier.sse2avx); | |
1b9f0c97 L |
8613 | } |
8614 | else | |
8615 | { | |
8616 | i.rm.reg = i.op[op].regs->reg_num; | |
a5aeccd9 JB |
8617 | set_rex_vrex (i.op[op].regs, REX_R, |
8618 | i.tm.opcode_modifier.sse2avx); | |
1b9f0c97 | 8619 | } |
7ab9ffdd | 8620 | } |
252b5132 | 8621 | |
29b0f896 AM |
8622 | /* Now, if no memory operand has set i.rm.mode = 0, 1, 2 we |
8623 | must set it to 3 to indicate this is a register operand | |
8624 | in the regmem field. */ | |
8625 | if (!i.mem_operands) | |
8626 | i.rm.mode = 3; | |
8627 | } | |
252b5132 | 8628 | |
29b0f896 | 8629 | /* Fill in i.rm.reg field with extension opcode (if any). */ |
c1e679ec | 8630 | if (i.tm.extension_opcode != None) |
29b0f896 AM |
8631 | i.rm.reg = i.tm.extension_opcode; |
8632 | } | |
8633 | return default_seg; | |
8634 | } | |
252b5132 | 8635 | |
48ef937e JB |
8636 | static INLINE void |
8637 | frag_opcode_byte (unsigned char byte) | |
8638 | { | |
8639 | if (now_seg != absolute_section) | |
8640 | FRAG_APPEND_1_CHAR (byte); | |
8641 | else | |
8642 | ++abs_section_offset; | |
8643 | } | |
8644 | ||
376cd056 JB |
8645 | static unsigned int |
8646 | flip_code16 (unsigned int code16) | |
8647 | { | |
8648 | gas_assert (i.tm.operands == 1); | |
8649 | ||
8650 | return !(i.prefix[REX_PREFIX] & REX_W) | |
8651 | && (code16 ? i.tm.operand_types[0].bitfield.disp32 | |
376cd056 JB |
8652 | : i.tm.operand_types[0].bitfield.disp16) |
8653 | ? CODE16 : 0; | |
8654 | } | |
8655 | ||
29b0f896 | 8656 | static void |
e3bb37b5 | 8657 | output_branch (void) |
29b0f896 AM |
8658 | { |
8659 | char *p; | |
f8a5c266 | 8660 | int size; |
29b0f896 AM |
8661 | int code16; |
8662 | int prefix; | |
8663 | relax_substateT subtype; | |
8664 | symbolS *sym; | |
8665 | offsetT off; | |
8666 | ||
48ef937e JB |
8667 | if (now_seg == absolute_section) |
8668 | { | |
8669 | as_bad (_("relaxable branches not supported in absolute section")); | |
8670 | return; | |
8671 | } | |
8672 | ||
f8a5c266 | 8673 | code16 = flag_code == CODE_16BIT ? CODE16 : 0; |
1a42a9fe | 8674 | size = i.disp_encoding > disp_encoding_8bit ? BIG : SMALL; |
29b0f896 AM |
8675 | |
8676 | prefix = 0; | |
8677 | if (i.prefix[DATA_PREFIX] != 0) | |
252b5132 | 8678 | { |
29b0f896 AM |
8679 | prefix = 1; |
8680 | i.prefixes -= 1; | |
376cd056 | 8681 | code16 ^= flip_code16(code16); |
252b5132 | 8682 | } |
29b0f896 AM |
8683 | /* Pentium4 branch hints. */ |
8684 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8685 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
2f66722d | 8686 | { |
29b0f896 AM |
8687 | prefix++; |
8688 | i.prefixes--; | |
8689 | } | |
8690 | if (i.prefix[REX_PREFIX] != 0) | |
8691 | { | |
8692 | prefix++; | |
8693 | i.prefixes--; | |
2f66722d AM |
8694 | } |
8695 | ||
7e8b059b L |
8696 | /* BND prefixed jump. */ |
8697 | if (i.prefix[BND_PREFIX] != 0) | |
8698 | { | |
6cb0a70e JB |
8699 | prefix++; |
8700 | i.prefixes--; | |
7e8b059b L |
8701 | } |
8702 | ||
f2810fe0 JB |
8703 | if (i.prefixes != 0) |
8704 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
29b0f896 AM |
8705 | |
8706 | /* It's always a symbol; End frag & setup for relax. | |
8707 | Make sure there is enough room in this frag for the largest | |
8708 | instruction we may generate in md_convert_frag. This is 2 | |
8709 | bytes for the opcode and room for the prefix and largest | |
8710 | displacement. */ | |
8711 | frag_grow (prefix + 2 + 4); | |
8712 | /* Prefix and 1 opcode byte go in fr_fix. */ | |
8713 | p = frag_more (prefix + 1); | |
8714 | if (i.prefix[DATA_PREFIX] != 0) | |
8715 | *p++ = DATA_PREFIX_OPCODE; | |
8716 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE | |
8717 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE) | |
8718 | *p++ = i.prefix[SEG_PREFIX]; | |
6cb0a70e JB |
8719 | if (i.prefix[BND_PREFIX] != 0) |
8720 | *p++ = BND_PREFIX_OPCODE; | |
29b0f896 AM |
8721 | if (i.prefix[REX_PREFIX] != 0) |
8722 | *p++ = i.prefix[REX_PREFIX]; | |
8723 | *p = i.tm.base_opcode; | |
8724 | ||
8725 | if ((unsigned char) *p == JUMP_PC_RELATIVE) | |
f8a5c266 | 8726 | subtype = ENCODE_RELAX_STATE (UNCOND_JUMP, size); |
40fb9820 | 8727 | else if (cpu_arch_flags.bitfield.cpui386) |
f8a5c266 | 8728 | subtype = ENCODE_RELAX_STATE (COND_JUMP, size); |
29b0f896 | 8729 | else |
f8a5c266 | 8730 | subtype = ENCODE_RELAX_STATE (COND_JUMP86, size); |
29b0f896 | 8731 | subtype |= code16; |
3e73aa7c | 8732 | |
29b0f896 AM |
8733 | sym = i.op[0].disps->X_add_symbol; |
8734 | off = i.op[0].disps->X_add_number; | |
3e73aa7c | 8735 | |
29b0f896 AM |
8736 | if (i.op[0].disps->X_op != O_constant |
8737 | && i.op[0].disps->X_op != O_symbol) | |
3e73aa7c | 8738 | { |
29b0f896 AM |
8739 | /* Handle complex expressions. */ |
8740 | sym = make_expr_symbol (i.op[0].disps); | |
8741 | off = 0; | |
8742 | } | |
3e73aa7c | 8743 | |
1ef3994a JB |
8744 | frag_now->tc_frag_data.code64 = flag_code == CODE_64BIT; |
8745 | ||
29b0f896 AM |
8746 | /* 1 possible extra opcode + 4 byte displacement go in var part. |
8747 | Pass reloc in fr_var. */ | |
d258b828 | 8748 | frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p); |
29b0f896 | 8749 | } |
3e73aa7c | 8750 | |
bd7ab16b L |
8751 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8752 | /* Return TRUE iff PLT32 relocation should be used for branching to | |
8753 | symbol S. */ | |
8754 | ||
5b7c81bd | 8755 | static bool |
bd7ab16b L |
8756 | need_plt32_p (symbolS *s) |
8757 | { | |
8758 | /* PLT32 relocation is ELF only. */ | |
8759 | if (!IS_ELF) | |
5b7c81bd | 8760 | return false; |
bd7ab16b | 8761 | |
a5def729 RO |
8762 | #ifdef TE_SOLARIS |
8763 | /* Don't emit PLT32 relocation on Solaris: neither native linker nor | |
8764 | krtld support it. */ | |
5b7c81bd | 8765 | return false; |
a5def729 RO |
8766 | #endif |
8767 | ||
bd7ab16b L |
8768 | /* Since there is no need to prepare for PLT branch on x86-64, we |
8769 | can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can | |
8770 | be used as a marker for 32-bit PC-relative branches. */ | |
8771 | if (!object_64bit) | |
5b7c81bd | 8772 | return false; |
bd7ab16b | 8773 | |
44365e88 | 8774 | if (s == NULL) |
5b7c81bd | 8775 | return false; |
44365e88 | 8776 | |
bd7ab16b L |
8777 | /* Weak or undefined symbol need PLT32 relocation. */ |
8778 | if (S_IS_WEAK (s) || !S_IS_DEFINED (s)) | |
5b7c81bd | 8779 | return true; |
bd7ab16b L |
8780 | |
8781 | /* Non-global symbol doesn't need PLT32 relocation. */ | |
8782 | if (! S_IS_EXTERNAL (s)) | |
5b7c81bd | 8783 | return false; |
bd7ab16b L |
8784 | |
8785 | /* Other global symbols need PLT32 relocation. NB: Symbol with | |
8786 | non-default visibilities are treated as normal global symbol | |
8787 | so that PLT32 relocation can be used as a marker for 32-bit | |
8788 | PC-relative branches. It is useful for linker relaxation. */ | |
5b7c81bd | 8789 | return true; |
bd7ab16b L |
8790 | } |
8791 | #endif | |
8792 | ||
29b0f896 | 8793 | static void |
e3bb37b5 | 8794 | output_jump (void) |
29b0f896 AM |
8795 | { |
8796 | char *p; | |
8797 | int size; | |
3e02c1cc | 8798 | fixS *fixP; |
bd7ab16b | 8799 | bfd_reloc_code_real_type jump_reloc = i.reloc[0]; |
29b0f896 | 8800 | |
0cfa3eb3 | 8801 | if (i.tm.opcode_modifier.jump == JUMP_BYTE) |
29b0f896 AM |
8802 | { |
8803 | /* This is a loop or jecxz type instruction. */ | |
8804 | size = 1; | |
8805 | if (i.prefix[ADDR_PREFIX] != 0) | |
8806 | { | |
48ef937e | 8807 | frag_opcode_byte (ADDR_PREFIX_OPCODE); |
29b0f896 AM |
8808 | i.prefixes -= 1; |
8809 | } | |
8810 | /* Pentium4 branch hints. */ | |
8811 | if (i.prefix[SEG_PREFIX] == CS_PREFIX_OPCODE /* not taken */ | |
8812 | || i.prefix[SEG_PREFIX] == DS_PREFIX_OPCODE /* taken */) | |
8813 | { | |
48ef937e | 8814 | frag_opcode_byte (i.prefix[SEG_PREFIX]); |
29b0f896 | 8815 | i.prefixes--; |
3e73aa7c JH |
8816 | } |
8817 | } | |
29b0f896 AM |
8818 | else |
8819 | { | |
8820 | int code16; | |
3e73aa7c | 8821 | |
29b0f896 AM |
8822 | code16 = 0; |
8823 | if (flag_code == CODE_16BIT) | |
8824 | code16 = CODE16; | |
3e73aa7c | 8825 | |
29b0f896 AM |
8826 | if (i.prefix[DATA_PREFIX] != 0) |
8827 | { | |
48ef937e | 8828 | frag_opcode_byte (DATA_PREFIX_OPCODE); |
29b0f896 | 8829 | i.prefixes -= 1; |
376cd056 | 8830 | code16 ^= flip_code16(code16); |
29b0f896 | 8831 | } |
252b5132 | 8832 | |
29b0f896 AM |
8833 | size = 4; |
8834 | if (code16) | |
8835 | size = 2; | |
8836 | } | |
9fcc94b6 | 8837 | |
6cb0a70e JB |
8838 | /* BND prefixed jump. */ |
8839 | if (i.prefix[BND_PREFIX] != 0) | |
29b0f896 | 8840 | { |
48ef937e | 8841 | frag_opcode_byte (i.prefix[BND_PREFIX]); |
29b0f896 AM |
8842 | i.prefixes -= 1; |
8843 | } | |
252b5132 | 8844 | |
6cb0a70e | 8845 | if (i.prefix[REX_PREFIX] != 0) |
7e8b059b | 8846 | { |
48ef937e | 8847 | frag_opcode_byte (i.prefix[REX_PREFIX]); |
7e8b059b L |
8848 | i.prefixes -= 1; |
8849 | } | |
8850 | ||
f2810fe0 JB |
8851 | if (i.prefixes != 0) |
8852 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
e0890092 | 8853 | |
48ef937e JB |
8854 | if (now_seg == absolute_section) |
8855 | { | |
9a182d04 | 8856 | abs_section_offset += i.opcode_length + size; |
48ef937e JB |
8857 | return; |
8858 | } | |
8859 | ||
9a182d04 JB |
8860 | p = frag_more (i.opcode_length + size); |
8861 | switch (i.opcode_length) | |
42164a71 L |
8862 | { |
8863 | case 2: | |
8864 | *p++ = i.tm.base_opcode >> 8; | |
1a0670f3 | 8865 | /* Fall through. */ |
42164a71 L |
8866 | case 1: |
8867 | *p++ = i.tm.base_opcode; | |
8868 | break; | |
8869 | default: | |
8870 | abort (); | |
8871 | } | |
e0890092 | 8872 | |
bd7ab16b | 8873 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1ef3994a JB |
8874 | if (flag_code == CODE_64BIT && size == 4 |
8875 | && jump_reloc == NO_RELOC && i.op[0].disps->X_add_number == 0 | |
bd7ab16b L |
8876 | && need_plt32_p (i.op[0].disps->X_add_symbol)) |
8877 | jump_reloc = BFD_RELOC_X86_64_PLT32; | |
8878 | #endif | |
8879 | ||
8880 | jump_reloc = reloc (size, 1, 1, jump_reloc); | |
8881 | ||
3e02c1cc | 8882 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
bd7ab16b | 8883 | i.op[0].disps, 1, jump_reloc); |
3e02c1cc | 8884 | |
eb19308f JB |
8885 | /* All jumps handled here are signed, but don't unconditionally use a |
8886 | signed limit check for 32 and 16 bit jumps as we want to allow wrap | |
8887 | around at 4G (outside of 64-bit mode) and 64k (except for XBEGIN) | |
8888 | respectively. */ | |
8889 | switch (size) | |
8890 | { | |
8891 | case 1: | |
8892 | fixP->fx_signed = 1; | |
8893 | break; | |
8894 | ||
8895 | case 2: | |
8896 | if (i.tm.base_opcode == 0xc7f8) | |
8897 | fixP->fx_signed = 1; | |
8898 | break; | |
8899 | ||
8900 | case 4: | |
8901 | if (flag_code == CODE_64BIT) | |
8902 | fixP->fx_signed = 1; | |
8903 | break; | |
8904 | } | |
29b0f896 | 8905 | } |
e0890092 | 8906 | |
29b0f896 | 8907 | static void |
e3bb37b5 | 8908 | output_interseg_jump (void) |
29b0f896 AM |
8909 | { |
8910 | char *p; | |
8911 | int size; | |
8912 | int prefix; | |
8913 | int code16; | |
252b5132 | 8914 | |
29b0f896 AM |
8915 | code16 = 0; |
8916 | if (flag_code == CODE_16BIT) | |
8917 | code16 = CODE16; | |
a217f122 | 8918 | |
29b0f896 AM |
8919 | prefix = 0; |
8920 | if (i.prefix[DATA_PREFIX] != 0) | |
8921 | { | |
8922 | prefix = 1; | |
8923 | i.prefixes -= 1; | |
8924 | code16 ^= CODE16; | |
8925 | } | |
6cb0a70e JB |
8926 | |
8927 | gas_assert (!i.prefix[REX_PREFIX]); | |
252b5132 | 8928 | |
29b0f896 AM |
8929 | size = 4; |
8930 | if (code16) | |
8931 | size = 2; | |
252b5132 | 8932 | |
f2810fe0 JB |
8933 | if (i.prefixes != 0) |
8934 | as_warn (_("skipping prefixes on `%s'"), i.tm.name); | |
252b5132 | 8935 | |
48ef937e JB |
8936 | if (now_seg == absolute_section) |
8937 | { | |
8938 | abs_section_offset += prefix + 1 + 2 + size; | |
8939 | return; | |
8940 | } | |
8941 | ||
29b0f896 AM |
8942 | /* 1 opcode; 2 segment; offset */ |
8943 | p = frag_more (prefix + 1 + 2 + size); | |
3e73aa7c | 8944 | |
29b0f896 AM |
8945 | if (i.prefix[DATA_PREFIX] != 0) |
8946 | *p++ = DATA_PREFIX_OPCODE; | |
252b5132 | 8947 | |
29b0f896 AM |
8948 | if (i.prefix[REX_PREFIX] != 0) |
8949 | *p++ = i.prefix[REX_PREFIX]; | |
252b5132 | 8950 | |
29b0f896 AM |
8951 | *p++ = i.tm.base_opcode; |
8952 | if (i.op[1].imms->X_op == O_constant) | |
8953 | { | |
8954 | offsetT n = i.op[1].imms->X_add_number; | |
252b5132 | 8955 | |
29b0f896 AM |
8956 | if (size == 2 |
8957 | && !fits_in_unsigned_word (n) | |
8958 | && !fits_in_signed_word (n)) | |
8959 | { | |
8960 | as_bad (_("16-bit jump out of range")); | |
8961 | return; | |
8962 | } | |
8963 | md_number_to_chars (p, n, size); | |
8964 | } | |
8965 | else | |
8966 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, | |
d258b828 | 8967 | i.op[1].imms, 0, reloc (size, 0, 0, i.reloc[1])); |
6d96a594 C |
8968 | |
8969 | p += size; | |
8970 | if (i.op[0].imms->X_op == O_constant) | |
8971 | md_number_to_chars (p, (valueT) i.op[0].imms->X_add_number, 2); | |
8972 | else | |
8973 | fix_new_exp (frag_now, p - frag_now->fr_literal, 2, | |
8974 | i.op[0].imms, 0, reloc (2, 0, 0, i.reloc[0])); | |
29b0f896 | 8975 | } |
a217f122 | 8976 | |
b4a3a7b4 L |
8977 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8978 | void | |
8979 | x86_cleanup (void) | |
8980 | { | |
8981 | char *p; | |
8982 | asection *seg = now_seg; | |
8983 | subsegT subseg = now_subseg; | |
8984 | asection *sec; | |
8985 | unsigned int alignment, align_size_1; | |
8986 | unsigned int isa_1_descsz, feature_2_descsz, descsz; | |
8987 | unsigned int isa_1_descsz_raw, feature_2_descsz_raw; | |
8988 | unsigned int padding; | |
8989 | ||
1273b2f8 | 8990 | if (!IS_ELF || !x86_used_note) |
b4a3a7b4 L |
8991 | return; |
8992 | ||
b4a3a7b4 L |
8993 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X86; |
8994 | ||
8995 | /* The .note.gnu.property section layout: | |
8996 | ||
8997 | Field Length Contents | |
8998 | ---- ---- ---- | |
8999 | n_namsz 4 4 | |
9000 | n_descsz 4 The note descriptor size | |
9001 | n_type 4 NT_GNU_PROPERTY_TYPE_0 | |
9002 | n_name 4 "GNU" | |
9003 | n_desc n_descsz The program property array | |
9004 | .... .... .... | |
9005 | */ | |
9006 | ||
9007 | /* Create the .note.gnu.property section. */ | |
9008 | sec = subseg_new (NOTE_GNU_PROPERTY_SECTION_NAME, 0); | |
fd361982 | 9009 | bfd_set_section_flags (sec, |
b4a3a7b4 L |
9010 | (SEC_ALLOC |
9011 | | SEC_LOAD | |
9012 | | SEC_DATA | |
9013 | | SEC_HAS_CONTENTS | |
9014 | | SEC_READONLY)); | |
9015 | ||
9016 | if (get_elf_backend_data (stdoutput)->s->elfclass == ELFCLASS64) | |
9017 | { | |
9018 | align_size_1 = 7; | |
9019 | alignment = 3; | |
9020 | } | |
9021 | else | |
9022 | { | |
9023 | align_size_1 = 3; | |
9024 | alignment = 2; | |
9025 | } | |
9026 | ||
fd361982 | 9027 | bfd_set_section_alignment (sec, alignment); |
b4a3a7b4 L |
9028 | elf_section_type (sec) = SHT_NOTE; |
9029 | ||
1273b2f8 L |
9030 | /* GNU_PROPERTY_X86_ISA_1_USED: 4-byte type + 4-byte data size |
9031 | + 4-byte data */ | |
9032 | isa_1_descsz_raw = 4 + 4 + 4; | |
9033 | /* Align GNU_PROPERTY_X86_ISA_1_USED. */ | |
9034 | isa_1_descsz = (isa_1_descsz_raw + align_size_1) & ~align_size_1; | |
b4a3a7b4 L |
9035 | |
9036 | feature_2_descsz_raw = isa_1_descsz; | |
9037 | /* GNU_PROPERTY_X86_FEATURE_2_USED: 4-byte type + 4-byte data size | |
1273b2f8 | 9038 | + 4-byte data */ |
b4a3a7b4 L |
9039 | feature_2_descsz_raw += 4 + 4 + 4; |
9040 | /* Align GNU_PROPERTY_X86_FEATURE_2_USED. */ | |
9041 | feature_2_descsz = ((feature_2_descsz_raw + align_size_1) | |
9042 | & ~align_size_1); | |
9043 | ||
9044 | descsz = feature_2_descsz; | |
9045 | /* Section size: n_namsz + n_descsz + n_type + n_name + n_descsz. */ | |
9046 | p = frag_more (4 + 4 + 4 + 4 + descsz); | |
9047 | ||
9048 | /* Write n_namsz. */ | |
9049 | md_number_to_chars (p, (valueT) 4, 4); | |
9050 | ||
9051 | /* Write n_descsz. */ | |
9052 | md_number_to_chars (p + 4, (valueT) descsz, 4); | |
9053 | ||
9054 | /* Write n_type. */ | |
9055 | md_number_to_chars (p + 4 * 2, (valueT) NT_GNU_PROPERTY_TYPE_0, 4); | |
9056 | ||
9057 | /* Write n_name. */ | |
9058 | memcpy (p + 4 * 3, "GNU", 4); | |
9059 | ||
1273b2f8 L |
9060 | /* Write 4-byte type. */ |
9061 | md_number_to_chars (p + 4 * 4, | |
9062 | (valueT) GNU_PROPERTY_X86_ISA_1_USED, 4); | |
b4a3a7b4 | 9063 | |
1273b2f8 L |
9064 | /* Write 4-byte data size. */ |
9065 | md_number_to_chars (p + 4 * 5, (valueT) 4, 4); | |
b4a3a7b4 | 9066 | |
1273b2f8 L |
9067 | /* Write 4-byte data. */ |
9068 | md_number_to_chars (p + 4 * 6, (valueT) x86_isa_1_used, 4); | |
b4a3a7b4 | 9069 | |
1273b2f8 L |
9070 | /* Zero out paddings. */ |
9071 | padding = isa_1_descsz - isa_1_descsz_raw; | |
9072 | if (padding) | |
9073 | memset (p + 4 * 7, 0, padding); | |
b4a3a7b4 L |
9074 | |
9075 | /* Write 4-byte type. */ | |
9076 | md_number_to_chars (p + isa_1_descsz + 4 * 4, | |
9077 | (valueT) GNU_PROPERTY_X86_FEATURE_2_USED, 4); | |
9078 | ||
9079 | /* Write 4-byte data size. */ | |
9080 | md_number_to_chars (p + isa_1_descsz + 4 * 5, (valueT) 4, 4); | |
9081 | ||
9082 | /* Write 4-byte data. */ | |
9083 | md_number_to_chars (p + isa_1_descsz + 4 * 6, | |
9084 | (valueT) x86_feature_2_used, 4); | |
9085 | ||
9086 | /* Zero out paddings. */ | |
9087 | padding = feature_2_descsz - feature_2_descsz_raw; | |
9088 | if (padding) | |
9089 | memset (p + isa_1_descsz + 4 * 7, 0, padding); | |
9090 | ||
9091 | /* We probably can't restore the current segment, for there likely | |
9092 | isn't one yet... */ | |
9093 | if (seg && subseg) | |
9094 | subseg_set (seg, subseg); | |
9095 | } | |
9096 | #endif | |
9097 | ||
9c33702b JB |
9098 | static unsigned int |
9099 | encoding_length (const fragS *start_frag, offsetT start_off, | |
9100 | const char *frag_now_ptr) | |
9101 | { | |
9102 | unsigned int len = 0; | |
9103 | ||
9104 | if (start_frag != frag_now) | |
9105 | { | |
9106 | const fragS *fr = start_frag; | |
9107 | ||
9108 | do { | |
9109 | len += fr->fr_fix; | |
9110 | fr = fr->fr_next; | |
9111 | } while (fr && fr != frag_now); | |
9112 | } | |
9113 | ||
9114 | return len - start_off + (frag_now_ptr - frag_now->fr_literal); | |
9115 | } | |
9116 | ||
e379e5f3 | 9117 | /* Return 1 for test, and, cmp, add, sub, inc and dec which may |
79d72f45 HL |
9118 | be macro-fused with conditional jumps. |
9119 | NB: If TEST/AND/CMP/ADD/SUB/INC/DEC is of RIP relative address, | |
9120 | or is one of the following format: | |
9121 | ||
9122 | cmp m, imm | |
9123 | add m, imm | |
9124 | sub m, imm | |
9125 | test m, imm | |
9126 | and m, imm | |
9127 | inc m | |
9128 | dec m | |
9129 | ||
9130 | it is unfusible. */ | |
e379e5f3 L |
9131 | |
9132 | static int | |
79d72f45 | 9133 | maybe_fused_with_jcc_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
9134 | { |
9135 | /* No RIP address. */ | |
9136 | if (i.base_reg && i.base_reg->reg_num == RegIP) | |
9137 | return 0; | |
9138 | ||
389d00a5 JB |
9139 | /* No opcodes outside of base encoding space. */ |
9140 | if (i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
e379e5f3 L |
9141 | return 0; |
9142 | ||
79d72f45 HL |
9143 | /* add, sub without add/sub m, imm. */ |
9144 | if (i.tm.base_opcode <= 5 | |
e379e5f3 L |
9145 | || (i.tm.base_opcode >= 0x28 && i.tm.base_opcode <= 0x2d) |
9146 | || ((i.tm.base_opcode | 3) == 0x83 | |
79d72f45 | 9147 | && (i.tm.extension_opcode == 0x5 |
e379e5f3 | 9148 | || i.tm.extension_opcode == 0x0))) |
79d72f45 HL |
9149 | { |
9150 | *mf_cmp_p = mf_cmp_alu_cmp; | |
9151 | return !(i.mem_operands && i.imm_operands); | |
9152 | } | |
e379e5f3 | 9153 | |
79d72f45 HL |
9154 | /* and without and m, imm. */ |
9155 | if ((i.tm.base_opcode >= 0x20 && i.tm.base_opcode <= 0x25) | |
9156 | || ((i.tm.base_opcode | 3) == 0x83 | |
9157 | && i.tm.extension_opcode == 0x4)) | |
9158 | { | |
9159 | *mf_cmp_p = mf_cmp_test_and; | |
9160 | return !(i.mem_operands && i.imm_operands); | |
9161 | } | |
9162 | ||
9163 | /* test without test m imm. */ | |
e379e5f3 L |
9164 | if ((i.tm.base_opcode | 1) == 0x85 |
9165 | || (i.tm.base_opcode | 1) == 0xa9 | |
9166 | || ((i.tm.base_opcode | 1) == 0xf7 | |
79d72f45 HL |
9167 | && i.tm.extension_opcode == 0)) |
9168 | { | |
9169 | *mf_cmp_p = mf_cmp_test_and; | |
9170 | return !(i.mem_operands && i.imm_operands); | |
9171 | } | |
9172 | ||
9173 | /* cmp without cmp m, imm. */ | |
9174 | if ((i.tm.base_opcode >= 0x38 && i.tm.base_opcode <= 0x3d) | |
e379e5f3 L |
9175 | || ((i.tm.base_opcode | 3) == 0x83 |
9176 | && (i.tm.extension_opcode == 0x7))) | |
79d72f45 HL |
9177 | { |
9178 | *mf_cmp_p = mf_cmp_alu_cmp; | |
9179 | return !(i.mem_operands && i.imm_operands); | |
9180 | } | |
e379e5f3 | 9181 | |
79d72f45 | 9182 | /* inc, dec without inc/dec m. */ |
e379e5f3 L |
9183 | if ((i.tm.cpu_flags.bitfield.cpuno64 |
9184 | && (i.tm.base_opcode | 0xf) == 0x4f) | |
9185 | || ((i.tm.base_opcode | 1) == 0xff | |
9186 | && i.tm.extension_opcode <= 0x1)) | |
79d72f45 HL |
9187 | { |
9188 | *mf_cmp_p = mf_cmp_incdec; | |
9189 | return !i.mem_operands; | |
9190 | } | |
e379e5f3 L |
9191 | |
9192 | return 0; | |
9193 | } | |
9194 | ||
9195 | /* Return 1 if a FUSED_JCC_PADDING frag should be generated. */ | |
9196 | ||
9197 | static int | |
79d72f45 | 9198 | add_fused_jcc_padding_frag_p (enum mf_cmp_kind* mf_cmp_p) |
e379e5f3 L |
9199 | { |
9200 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
9201 | if (!align_branch_power | |
9202 | || now_seg == absolute_section | |
9203 | || !cpu_arch_flags.bitfield.cpui386 | |
9204 | || !(align_branch & align_branch_fused_bit)) | |
9205 | return 0; | |
9206 | ||
79d72f45 | 9207 | if (maybe_fused_with_jcc_p (mf_cmp_p)) |
e379e5f3 L |
9208 | { |
9209 | if (last_insn.kind == last_insn_other | |
9210 | || last_insn.seg != now_seg) | |
9211 | return 1; | |
9212 | if (flag_debug) | |
9213 | as_warn_where (last_insn.file, last_insn.line, | |
9214 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9215 | last_insn.name, i.tm.name); | |
9216 | } | |
9217 | ||
9218 | return 0; | |
9219 | } | |
9220 | ||
9221 | /* Return 1 if a BRANCH_PREFIX frag should be generated. */ | |
9222 | ||
9223 | static int | |
9224 | add_branch_prefix_frag_p (void) | |
9225 | { | |
9226 | /* NB: Don't work with COND_JUMP86 without i386. Don't add prefix | |
9227 | to PadLock instructions since they include prefixes in opcode. */ | |
9228 | if (!align_branch_power | |
9229 | || !align_branch_prefix_size | |
9230 | || now_seg == absolute_section | |
9231 | || i.tm.cpu_flags.bitfield.cpupadlock | |
9232 | || !cpu_arch_flags.bitfield.cpui386) | |
9233 | return 0; | |
9234 | ||
9235 | /* Don't add prefix if it is a prefix or there is no operand in case | |
9236 | that segment prefix is special. */ | |
9237 | if (!i.operands || i.tm.opcode_modifier.isprefix) | |
9238 | return 0; | |
9239 | ||
9240 | if (last_insn.kind == last_insn_other | |
9241 | || last_insn.seg != now_seg) | |
9242 | return 1; | |
9243 | ||
9244 | if (flag_debug) | |
9245 | as_warn_where (last_insn.file, last_insn.line, | |
9246 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9247 | last_insn.name, i.tm.name); | |
9248 | ||
9249 | return 0; | |
9250 | } | |
9251 | ||
9252 | /* Return 1 if a BRANCH_PADDING frag should be generated. */ | |
9253 | ||
9254 | static int | |
79d72f45 HL |
9255 | add_branch_padding_frag_p (enum align_branch_kind *branch_p, |
9256 | enum mf_jcc_kind *mf_jcc_p) | |
e379e5f3 L |
9257 | { |
9258 | int add_padding; | |
9259 | ||
9260 | /* NB: Don't work with COND_JUMP86 without i386. */ | |
9261 | if (!align_branch_power | |
9262 | || now_seg == absolute_section | |
389d00a5 JB |
9263 | || !cpu_arch_flags.bitfield.cpui386 |
9264 | || i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
e379e5f3 L |
9265 | return 0; |
9266 | ||
9267 | add_padding = 0; | |
9268 | ||
9269 | /* Check for jcc and direct jmp. */ | |
9270 | if (i.tm.opcode_modifier.jump == JUMP) | |
9271 | { | |
9272 | if (i.tm.base_opcode == JUMP_PC_RELATIVE) | |
9273 | { | |
9274 | *branch_p = align_branch_jmp; | |
9275 | add_padding = align_branch & align_branch_jmp_bit; | |
9276 | } | |
9277 | else | |
9278 | { | |
79d72f45 HL |
9279 | /* Because J<cc> and JN<cc> share same group in macro-fusible table, |
9280 | igore the lowest bit. */ | |
9281 | *mf_jcc_p = (i.tm.base_opcode & 0x0e) >> 1; | |
e379e5f3 L |
9282 | *branch_p = align_branch_jcc; |
9283 | if ((align_branch & align_branch_jcc_bit)) | |
9284 | add_padding = 1; | |
9285 | } | |
9286 | } | |
e379e5f3 L |
9287 | else if ((i.tm.base_opcode | 1) == 0xc3) |
9288 | { | |
9289 | /* Near ret. */ | |
9290 | *branch_p = align_branch_ret; | |
9291 | if ((align_branch & align_branch_ret_bit)) | |
9292 | add_padding = 1; | |
9293 | } | |
9294 | else | |
9295 | { | |
9296 | /* Check for indirect jmp, direct and indirect calls. */ | |
9297 | if (i.tm.base_opcode == 0xe8) | |
9298 | { | |
9299 | /* Direct call. */ | |
9300 | *branch_p = align_branch_call; | |
9301 | if ((align_branch & align_branch_call_bit)) | |
9302 | add_padding = 1; | |
9303 | } | |
9304 | else if (i.tm.base_opcode == 0xff | |
9305 | && (i.tm.extension_opcode == 2 | |
9306 | || i.tm.extension_opcode == 4)) | |
9307 | { | |
9308 | /* Indirect call and jmp. */ | |
9309 | *branch_p = align_branch_indirect; | |
9310 | if ((align_branch & align_branch_indirect_bit)) | |
9311 | add_padding = 1; | |
9312 | } | |
9313 | ||
9314 | if (add_padding | |
9315 | && i.disp_operands | |
9316 | && tls_get_addr | |
9317 | && (i.op[0].disps->X_op == O_symbol | |
9318 | || (i.op[0].disps->X_op == O_subtract | |
9319 | && i.op[0].disps->X_op_symbol == GOT_symbol))) | |
9320 | { | |
9321 | symbolS *s = i.op[0].disps->X_add_symbol; | |
9322 | /* No padding to call to global or undefined tls_get_addr. */ | |
9323 | if ((S_IS_EXTERNAL (s) || !S_IS_DEFINED (s)) | |
9324 | && strcmp (S_GET_NAME (s), tls_get_addr) == 0) | |
9325 | return 0; | |
9326 | } | |
9327 | } | |
9328 | ||
9329 | if (add_padding | |
9330 | && last_insn.kind != last_insn_other | |
9331 | && last_insn.seg == now_seg) | |
9332 | { | |
9333 | if (flag_debug) | |
9334 | as_warn_where (last_insn.file, last_insn.line, | |
9335 | _("`%s` skips -malign-branch-boundary on `%s`"), | |
9336 | last_insn.name, i.tm.name); | |
9337 | return 0; | |
9338 | } | |
9339 | ||
9340 | return add_padding; | |
9341 | } | |
9342 | ||
29b0f896 | 9343 | static void |
e3bb37b5 | 9344 | output_insn (void) |
29b0f896 | 9345 | { |
2bbd9c25 JJ |
9346 | fragS *insn_start_frag; |
9347 | offsetT insn_start_off; | |
e379e5f3 L |
9348 | fragS *fragP = NULL; |
9349 | enum align_branch_kind branch = align_branch_none; | |
79d72f45 HL |
9350 | /* The initializer is arbitrary just to avoid uninitialized error. |
9351 | it's actually either assigned in add_branch_padding_frag_p | |
9352 | or never be used. */ | |
9353 | enum mf_jcc_kind mf_jcc = mf_jcc_jo; | |
2bbd9c25 | 9354 | |
b4a3a7b4 | 9355 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
48ef937e | 9356 | if (IS_ELF && x86_used_note && now_seg != absolute_section) |
b4a3a7b4 | 9357 | { |
32930e4e L |
9358 | if ((i.xstate & xstate_tmm) == xstate_tmm |
9359 | || i.tm.cpu_flags.bitfield.cpuamx_tile) | |
9360 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_TMM; | |
9361 | ||
b4a3a7b4 L |
9362 | if (i.tm.cpu_flags.bitfield.cpu8087 |
9363 | || i.tm.cpu_flags.bitfield.cpu287 | |
9364 | || i.tm.cpu_flags.bitfield.cpu387 | |
9365 | || i.tm.cpu_flags.bitfield.cpu687 | |
9366 | || i.tm.cpu_flags.bitfield.cpufisttp) | |
9367 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_X87; | |
014d61ea | 9368 | |
921eafea | 9369 | if ((i.xstate & xstate_mmx) |
389d00a5 JB |
9370 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
9371 | && !is_any_vex_encoding (&i.tm) | |
9372 | && (i.tm.base_opcode == 0x77 /* emms */ | |
9373 | || i.tm.base_opcode == 0x0e /* femms */))) | |
b4a3a7b4 | 9374 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MMX; |
014d61ea | 9375 | |
32930e4e L |
9376 | if (i.index_reg) |
9377 | { | |
9378 | if (i.index_reg->reg_type.bitfield.zmmword) | |
9379 | i.xstate |= xstate_zmm; | |
9380 | else if (i.index_reg->reg_type.bitfield.ymmword) | |
9381 | i.xstate |= xstate_ymm; | |
9382 | else if (i.index_reg->reg_type.bitfield.xmmword) | |
9383 | i.xstate |= xstate_xmm; | |
9384 | } | |
014d61ea JB |
9385 | |
9386 | /* vzeroall / vzeroupper */ | |
9387 | if (i.tm.base_opcode == 0x77 && i.tm.cpu_flags.bitfield.cpuavx) | |
9388 | i.xstate |= xstate_ymm; | |
9389 | ||
c4694f17 | 9390 | if ((i.xstate & xstate_xmm) |
389d00a5 JB |
9391 | /* ldmxcsr / stmxcsr / vldmxcsr / vstmxcsr */ |
9392 | || (i.tm.base_opcode == 0xae | |
9393 | && (i.tm.cpu_flags.bitfield.cpusse | |
9394 | || i.tm.cpu_flags.bitfield.cpuavx)) | |
c4694f17 TG |
9395 | || i.tm.cpu_flags.bitfield.cpuwidekl |
9396 | || i.tm.cpu_flags.bitfield.cpukl) | |
b4a3a7b4 | 9397 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XMM; |
014d61ea | 9398 | |
921eafea | 9399 | if ((i.xstate & xstate_ymm) == xstate_ymm) |
b4a3a7b4 | 9400 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_YMM; |
921eafea | 9401 | if ((i.xstate & xstate_zmm) == xstate_zmm) |
b4a3a7b4 | 9402 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_ZMM; |
6225c532 | 9403 | if (i.mask.reg || (i.xstate & xstate_mask) == xstate_mask) |
32930e4e | 9404 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_MASK; |
b4a3a7b4 L |
9405 | if (i.tm.cpu_flags.bitfield.cpufxsr) |
9406 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_FXSR; | |
9407 | if (i.tm.cpu_flags.bitfield.cpuxsave) | |
9408 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVE; | |
9409 | if (i.tm.cpu_flags.bitfield.cpuxsaveopt) | |
9410 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT; | |
9411 | if (i.tm.cpu_flags.bitfield.cpuxsavec) | |
9412 | x86_feature_2_used |= GNU_PROPERTY_X86_FEATURE_2_XSAVEC; | |
b0ab0693 L |
9413 | |
9414 | if (x86_feature_2_used | |
9415 | || i.tm.cpu_flags.bitfield.cpucmov | |
9416 | || i.tm.cpu_flags.bitfield.cpusyscall | |
389d00a5 JB |
9417 | || (i.tm.opcode_modifier.opcodespace == SPACE_0F |
9418 | && i.tm.base_opcode == 0xc7 | |
70e95837 | 9419 | && i.tm.opcode_modifier.opcodeprefix == PREFIX_NONE |
b0ab0693 L |
9420 | && i.tm.extension_opcode == 1) /* cmpxchg8b */) |
9421 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_BASELINE; | |
9422 | if (i.tm.cpu_flags.bitfield.cpusse3 | |
9423 | || i.tm.cpu_flags.bitfield.cpussse3 | |
9424 | || i.tm.cpu_flags.bitfield.cpusse4_1 | |
9425 | || i.tm.cpu_flags.bitfield.cpusse4_2 | |
9426 | || i.tm.cpu_flags.bitfield.cpucx16 | |
9427 | || i.tm.cpu_flags.bitfield.cpupopcnt | |
9428 | /* LAHF-SAHF insns in 64-bit mode. */ | |
9429 | || (flag_code == CODE_64BIT | |
35648716 JB |
9430 | && (i.tm.base_opcode | 1) == 0x9f |
9431 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE)) | |
b0ab0693 L |
9432 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V2; |
9433 | if (i.tm.cpu_flags.bitfield.cpuavx | |
9434 | || i.tm.cpu_flags.bitfield.cpuavx2 | |
a9860005 JB |
9435 | /* Any VEX encoded insns execpt for AVX512F, AVX512BW, AVX512DQ, |
9436 | XOP, FMA4, LPW, TBM, and AMX. */ | |
b0ab0693 L |
9437 | || (i.tm.opcode_modifier.vex |
9438 | && !i.tm.cpu_flags.bitfield.cpuavx512f | |
9439 | && !i.tm.cpu_flags.bitfield.cpuavx512bw | |
9440 | && !i.tm.cpu_flags.bitfield.cpuavx512dq | |
a9860005 JB |
9441 | && !i.tm.cpu_flags.bitfield.cpuxop |
9442 | && !i.tm.cpu_flags.bitfield.cpufma4 | |
b0ab0693 L |
9443 | && !i.tm.cpu_flags.bitfield.cpulwp |
9444 | && !i.tm.cpu_flags.bitfield.cputbm | |
9445 | && !(x86_feature_2_used & GNU_PROPERTY_X86_FEATURE_2_TMM)) | |
9446 | || i.tm.cpu_flags.bitfield.cpuf16c | |
9447 | || i.tm.cpu_flags.bitfield.cpufma | |
9448 | || i.tm.cpu_flags.bitfield.cpulzcnt | |
9449 | || i.tm.cpu_flags.bitfield.cpumovbe | |
9450 | || i.tm.cpu_flags.bitfield.cpuxsaves | |
9451 | || (x86_feature_2_used | |
9452 | & (GNU_PROPERTY_X86_FEATURE_2_XSAVE | |
9453 | | GNU_PROPERTY_X86_FEATURE_2_XSAVEOPT | |
9454 | | GNU_PROPERTY_X86_FEATURE_2_XSAVEC)) != 0) | |
9455 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V3; | |
9456 | if (i.tm.cpu_flags.bitfield.cpuavx512f | |
9457 | || i.tm.cpu_flags.bitfield.cpuavx512bw | |
9458 | || i.tm.cpu_flags.bitfield.cpuavx512dq | |
9459 | || i.tm.cpu_flags.bitfield.cpuavx512vl | |
a9860005 JB |
9460 | /* Any EVEX encoded insns except for AVX512ER, AVX512PF, |
9461 | AVX512-4FMAPS, and AVX512-4VNNIW. */ | |
b0ab0693 L |
9462 | || (i.tm.opcode_modifier.evex |
9463 | && !i.tm.cpu_flags.bitfield.cpuavx512er | |
9464 | && !i.tm.cpu_flags.bitfield.cpuavx512pf | |
a9860005 | 9465 | && !i.tm.cpu_flags.bitfield.cpuavx512_4fmaps |
b0ab0693 L |
9466 | && !i.tm.cpu_flags.bitfield.cpuavx512_4vnniw)) |
9467 | x86_isa_1_used |= GNU_PROPERTY_X86_ISA_1_V4; | |
b4a3a7b4 L |
9468 | } |
9469 | #endif | |
9470 | ||
29b0f896 AM |
9471 | /* Tie dwarf2 debug info to the address at the start of the insn. |
9472 | We can't do this after the insn has been output as the current | |
9473 | frag may have been closed off. eg. by frag_var. */ | |
9474 | dwarf2_emit_insn (0); | |
9475 | ||
2bbd9c25 JJ |
9476 | insn_start_frag = frag_now; |
9477 | insn_start_off = frag_now_fix (); | |
9478 | ||
79d72f45 | 9479 | if (add_branch_padding_frag_p (&branch, &mf_jcc)) |
e379e5f3 L |
9480 | { |
9481 | char *p; | |
9482 | /* Branch can be 8 bytes. Leave some room for prefixes. */ | |
9483 | unsigned int max_branch_padding_size = 14; | |
9484 | ||
9485 | /* Align section to boundary. */ | |
9486 | record_alignment (now_seg, align_branch_power); | |
9487 | ||
9488 | /* Make room for padding. */ | |
9489 | frag_grow (max_branch_padding_size); | |
9490 | ||
9491 | /* Start of the padding. */ | |
9492 | p = frag_more (0); | |
9493 | ||
9494 | fragP = frag_now; | |
9495 | ||
9496 | frag_var (rs_machine_dependent, max_branch_padding_size, 0, | |
9497 | ENCODE_RELAX_STATE (BRANCH_PADDING, 0), | |
9498 | NULL, 0, p); | |
9499 | ||
79d72f45 | 9500 | fragP->tc_frag_data.mf_type = mf_jcc; |
e379e5f3 L |
9501 | fragP->tc_frag_data.branch_type = branch; |
9502 | fragP->tc_frag_data.max_bytes = max_branch_padding_size; | |
9503 | } | |
9504 | ||
d59a54c2 JB |
9505 | if (!cpu_arch_flags.bitfield.cpui386 && (flag_code != CODE_16BIT) |
9506 | && !pre_386_16bit_warned) | |
9507 | { | |
9508 | as_warn (_("use .code16 to ensure correct addressing mode")); | |
9509 | pre_386_16bit_warned = true; | |
9510 | } | |
9511 | ||
29b0f896 | 9512 | /* Output jumps. */ |
0cfa3eb3 | 9513 | if (i.tm.opcode_modifier.jump == JUMP) |
29b0f896 | 9514 | output_branch (); |
0cfa3eb3 JB |
9515 | else if (i.tm.opcode_modifier.jump == JUMP_BYTE |
9516 | || i.tm.opcode_modifier.jump == JUMP_DWORD) | |
29b0f896 | 9517 | output_jump (); |
0cfa3eb3 | 9518 | else if (i.tm.opcode_modifier.jump == JUMP_INTERSEGMENT) |
29b0f896 AM |
9519 | output_interseg_jump (); |
9520 | else | |
9521 | { | |
9522 | /* Output normal instructions here. */ | |
9523 | char *p; | |
9524 | unsigned char *q; | |
47465058 | 9525 | unsigned int j; |
79d72f45 | 9526 | enum mf_cmp_kind mf_cmp; |
4dffcebc | 9527 | |
e4e00185 | 9528 | if (avoid_fence |
389d00a5 JB |
9529 | && (i.tm.base_opcode == 0xaee8 |
9530 | || i.tm.base_opcode == 0xaef0 | |
9531 | || i.tm.base_opcode == 0xaef8)) | |
48ef937e JB |
9532 | { |
9533 | /* Encode lfence, mfence, and sfence as | |
9534 | f0 83 04 24 00 lock addl $0x0, (%{re}sp). */ | |
47f4115a JB |
9535 | if (flag_code == CODE_16BIT) |
9536 | as_bad (_("Cannot convert `%s' in 16-bit mode"), i.tm.name); | |
9537 | else if (omit_lock_prefix) | |
9538 | as_bad (_("Cannot convert `%s' with `-momit-lock-prefix=yes' in effect"), | |
9539 | i.tm.name); | |
9540 | else if (now_seg != absolute_section) | |
48ef937e JB |
9541 | { |
9542 | offsetT val = 0x240483f0ULL; | |
9543 | ||
9544 | p = frag_more (5); | |
9545 | md_number_to_chars (p, val, 5); | |
9546 | } | |
9547 | else | |
9548 | abs_section_offset += 5; | |
9549 | return; | |
9550 | } | |
e4e00185 | 9551 | |
d022bddd IT |
9552 | /* Some processors fail on LOCK prefix. This options makes |
9553 | assembler ignore LOCK prefix and serves as a workaround. */ | |
9554 | if (omit_lock_prefix) | |
9555 | { | |
35648716 JB |
9556 | if (i.tm.base_opcode == LOCK_PREFIX_OPCODE |
9557 | && i.tm.opcode_modifier.isprefix) | |
d022bddd IT |
9558 | return; |
9559 | i.prefix[LOCK_PREFIX] = 0; | |
9560 | } | |
9561 | ||
e379e5f3 L |
9562 | if (branch) |
9563 | /* Skip if this is a branch. */ | |
9564 | ; | |
79d72f45 | 9565 | else if (add_fused_jcc_padding_frag_p (&mf_cmp)) |
e379e5f3 L |
9566 | { |
9567 | /* Make room for padding. */ | |
9568 | frag_grow (MAX_FUSED_JCC_PADDING_SIZE); | |
9569 | p = frag_more (0); | |
9570 | ||
9571 | fragP = frag_now; | |
9572 | ||
9573 | frag_var (rs_machine_dependent, MAX_FUSED_JCC_PADDING_SIZE, 0, | |
9574 | ENCODE_RELAX_STATE (FUSED_JCC_PADDING, 0), | |
9575 | NULL, 0, p); | |
9576 | ||
79d72f45 | 9577 | fragP->tc_frag_data.mf_type = mf_cmp; |
e379e5f3 L |
9578 | fragP->tc_frag_data.branch_type = align_branch_fused; |
9579 | fragP->tc_frag_data.max_bytes = MAX_FUSED_JCC_PADDING_SIZE; | |
9580 | } | |
9581 | else if (add_branch_prefix_frag_p ()) | |
9582 | { | |
9583 | unsigned int max_prefix_size = align_branch_prefix_size; | |
9584 | ||
9585 | /* Make room for padding. */ | |
9586 | frag_grow (max_prefix_size); | |
9587 | p = frag_more (0); | |
9588 | ||
9589 | fragP = frag_now; | |
9590 | ||
9591 | frag_var (rs_machine_dependent, max_prefix_size, 0, | |
9592 | ENCODE_RELAX_STATE (BRANCH_PREFIX, 0), | |
9593 | NULL, 0, p); | |
9594 | ||
9595 | fragP->tc_frag_data.max_bytes = max_prefix_size; | |
9596 | } | |
9597 | ||
43234a1e L |
9598 | /* Since the VEX/EVEX prefix contains the implicit prefix, we |
9599 | don't need the explicit prefix. */ | |
cf665fee | 9600 | if (!is_any_vex_encoding (&i.tm)) |
bc4bd9ab | 9601 | { |
7b47a312 | 9602 | switch (i.tm.opcode_modifier.opcodeprefix) |
bc4bd9ab | 9603 | { |
7b47a312 L |
9604 | case PREFIX_0X66: |
9605 | add_prefix (0x66); | |
9606 | break; | |
9607 | case PREFIX_0XF2: | |
9608 | add_prefix (0xf2); | |
9609 | break; | |
9610 | case PREFIX_0XF3: | |
8b65b895 L |
9611 | if (!i.tm.cpu_flags.bitfield.cpupadlock |
9612 | || (i.prefix[REP_PREFIX] != 0xf3)) | |
9613 | add_prefix (0xf3); | |
c0f3af97 | 9614 | break; |
7b47a312 | 9615 | case PREFIX_NONE: |
9a182d04 | 9616 | switch (i.opcode_length) |
c0f3af97 | 9617 | { |
7b47a312 | 9618 | case 2: |
7b47a312 | 9619 | break; |
9a182d04 | 9620 | case 1: |
7b47a312 | 9621 | /* Check for pseudo prefixes. */ |
9a182d04 JB |
9622 | if (!i.tm.opcode_modifier.isprefix || i.tm.base_opcode) |
9623 | break; | |
7b47a312 L |
9624 | as_bad_where (insn_start_frag->fr_file, |
9625 | insn_start_frag->fr_line, | |
9626 | _("pseudo prefix without instruction")); | |
9627 | return; | |
9628 | default: | |
9629 | abort (); | |
4dffcebc | 9630 | } |
c0f3af97 | 9631 | break; |
c0f3af97 L |
9632 | default: |
9633 | abort (); | |
bc4bd9ab | 9634 | } |
c0f3af97 | 9635 | |
6d19a37a | 9636 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
cf61b747 L |
9637 | /* For x32, add a dummy REX_OPCODE prefix for mov/add with |
9638 | R_X86_64_GOTTPOFF relocation so that linker can safely | |
14470f07 L |
9639 | perform IE->LE optimization. A dummy REX_OPCODE prefix |
9640 | is also needed for lea with R_X86_64_GOTPC32_TLSDESC | |
9641 | relocation for GDesc -> IE/LE optimization. */ | |
cf61b747 L |
9642 | if (x86_elf_abi == X86_64_X32_ABI |
9643 | && i.operands == 2 | |
14470f07 L |
9644 | && (i.reloc[0] == BFD_RELOC_X86_64_GOTTPOFF |
9645 | || i.reloc[0] == BFD_RELOC_X86_64_GOTPC32_TLSDESC) | |
cf61b747 L |
9646 | && i.prefix[REX_PREFIX] == 0) |
9647 | add_prefix (REX_OPCODE); | |
6d19a37a | 9648 | #endif |
cf61b747 | 9649 | |
c0f3af97 L |
9650 | /* The prefix bytes. */ |
9651 | for (j = ARRAY_SIZE (i.prefix), q = i.prefix; j > 0; j--, q++) | |
9652 | if (*q) | |
48ef937e | 9653 | frag_opcode_byte (*q); |
0f10071e | 9654 | } |
ae5c1c7b | 9655 | else |
c0f3af97 L |
9656 | { |
9657 | for (j = 0, q = i.prefix; j < ARRAY_SIZE (i.prefix); j++, q++) | |
9658 | if (*q) | |
9659 | switch (j) | |
9660 | { | |
c0f3af97 L |
9661 | case SEG_PREFIX: |
9662 | case ADDR_PREFIX: | |
48ef937e | 9663 | frag_opcode_byte (*q); |
c0f3af97 L |
9664 | break; |
9665 | default: | |
9666 | /* There should be no other prefixes for instructions | |
9667 | with VEX prefix. */ | |
9668 | abort (); | |
9669 | } | |
9670 | ||
43234a1e L |
9671 | /* For EVEX instructions i.vrex should become 0 after |
9672 | build_evex_prefix. For VEX instructions upper 16 registers | |
9673 | aren't available, so VREX should be 0. */ | |
9674 | if (i.vrex) | |
9675 | abort (); | |
c0f3af97 | 9676 | /* Now the VEX prefix. */ |
48ef937e JB |
9677 | if (now_seg != absolute_section) |
9678 | { | |
9679 | p = frag_more (i.vex.length); | |
9680 | for (j = 0; j < i.vex.length; j++) | |
9681 | p[j] = i.vex.bytes[j]; | |
9682 | } | |
9683 | else | |
9684 | abs_section_offset += i.vex.length; | |
c0f3af97 | 9685 | } |
252b5132 | 9686 | |
29b0f896 | 9687 | /* Now the opcode; be careful about word order here! */ |
389d00a5 JB |
9688 | j = i.opcode_length; |
9689 | if (!i.vex.length) | |
9690 | switch (i.tm.opcode_modifier.opcodespace) | |
9691 | { | |
9692 | case SPACE_BASE: | |
9693 | break; | |
9694 | case SPACE_0F: | |
9695 | ++j; | |
9696 | break; | |
9697 | case SPACE_0F38: | |
9698 | case SPACE_0F3A: | |
9699 | j += 2; | |
9700 | break; | |
9701 | default: | |
9702 | abort (); | |
9703 | } | |
9704 | ||
48ef937e | 9705 | if (now_seg == absolute_section) |
389d00a5 JB |
9706 | abs_section_offset += j; |
9707 | else if (j == 1) | |
29b0f896 AM |
9708 | { |
9709 | FRAG_APPEND_1_CHAR (i.tm.base_opcode); | |
9710 | } | |
9711 | else | |
9712 | { | |
389d00a5 JB |
9713 | p = frag_more (j); |
9714 | if (!i.vex.length | |
9715 | && i.tm.opcode_modifier.opcodespace != SPACE_BASE) | |
9716 | { | |
9717 | *p++ = 0x0f; | |
9718 | if (i.tm.opcode_modifier.opcodespace != SPACE_0F) | |
9719 | *p++ = i.tm.opcode_modifier.opcodespace == SPACE_0F38 | |
9720 | ? 0x38 : 0x3a; | |
9721 | } | |
9722 | ||
9a182d04 | 9723 | switch (i.opcode_length) |
331d2d0d | 9724 | { |
4dffcebc | 9725 | case 2: |
389d00a5 JB |
9726 | /* Put out high byte first: can't use md_number_to_chars! */ |
9727 | *p++ = (i.tm.base_opcode >> 8) & 0xff; | |
9728 | /* Fall through. */ | |
9729 | case 1: | |
9730 | *p = i.tm.base_opcode & 0xff; | |
4dffcebc L |
9731 | break; |
9732 | default: | |
9733 | abort (); | |
9734 | break; | |
331d2d0d | 9735 | } |
0f10071e | 9736 | |
29b0f896 | 9737 | } |
3e73aa7c | 9738 | |
29b0f896 | 9739 | /* Now the modrm byte and sib byte (if present). */ |
40fb9820 | 9740 | if (i.tm.opcode_modifier.modrm) |
29b0f896 | 9741 | { |
48ef937e JB |
9742 | frag_opcode_byte ((i.rm.regmem << 0) |
9743 | | (i.rm.reg << 3) | |
9744 | | (i.rm.mode << 6)); | |
29b0f896 AM |
9745 | /* If i.rm.regmem == ESP (4) |
9746 | && i.rm.mode != (Register mode) | |
9747 | && not 16 bit | |
9748 | ==> need second modrm byte. */ | |
9749 | if (i.rm.regmem == ESCAPE_TO_TWO_BYTE_ADDRESSING | |
9750 | && i.rm.mode != 3 | |
dc821c5f | 9751 | && !(i.base_reg && i.base_reg->reg_type.bitfield.word)) |
48ef937e JB |
9752 | frag_opcode_byte ((i.sib.base << 0) |
9753 | | (i.sib.index << 3) | |
9754 | | (i.sib.scale << 6)); | |
29b0f896 | 9755 | } |
3e73aa7c | 9756 | |
29b0f896 | 9757 | if (i.disp_operands) |
2bbd9c25 | 9758 | output_disp (insn_start_frag, insn_start_off); |
3e73aa7c | 9759 | |
29b0f896 | 9760 | if (i.imm_operands) |
2bbd9c25 | 9761 | output_imm (insn_start_frag, insn_start_off); |
9c33702b JB |
9762 | |
9763 | /* | |
9764 | * frag_now_fix () returning plain abs_section_offset when we're in the | |
9765 | * absolute section, and abs_section_offset not getting updated as data | |
9766 | * gets added to the frag breaks the logic below. | |
9767 | */ | |
9768 | if (now_seg != absolute_section) | |
9769 | { | |
9770 | j = encoding_length (insn_start_frag, insn_start_off, frag_more (0)); | |
9771 | if (j > 15) | |
9772 | as_warn (_("instruction length of %u bytes exceeds the limit of 15"), | |
9773 | j); | |
e379e5f3 L |
9774 | else if (fragP) |
9775 | { | |
9776 | /* NB: Don't add prefix with GOTPC relocation since | |
9777 | output_disp() above depends on the fixed encoding | |
9778 | length. Can't add prefix with TLS relocation since | |
9779 | it breaks TLS linker optimization. */ | |
9780 | unsigned int max = i.has_gotpc_tls_reloc ? 0 : 15 - j; | |
9781 | /* Prefix count on the current instruction. */ | |
9782 | unsigned int count = i.vex.length; | |
9783 | unsigned int k; | |
9784 | for (k = 0; k < ARRAY_SIZE (i.prefix); k++) | |
9785 | /* REX byte is encoded in VEX/EVEX prefix. */ | |
9786 | if (i.prefix[k] && (k != REX_PREFIX || !i.vex.length)) | |
9787 | count++; | |
9788 | ||
9789 | /* Count prefixes for extended opcode maps. */ | |
9790 | if (!i.vex.length) | |
389d00a5 | 9791 | switch (i.tm.opcode_modifier.opcodespace) |
e379e5f3 | 9792 | { |
389d00a5 | 9793 | case SPACE_BASE: |
e379e5f3 | 9794 | break; |
389d00a5 JB |
9795 | case SPACE_0F: |
9796 | count++; | |
e379e5f3 | 9797 | break; |
389d00a5 JB |
9798 | case SPACE_0F38: |
9799 | case SPACE_0F3A: | |
9800 | count += 2; | |
e379e5f3 L |
9801 | break; |
9802 | default: | |
9803 | abort (); | |
9804 | } | |
9805 | ||
9806 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
9807 | == BRANCH_PREFIX) | |
9808 | { | |
9809 | /* Set the maximum prefix size in BRANCH_PREFIX | |
9810 | frag. */ | |
9811 | if (fragP->tc_frag_data.max_bytes > max) | |
9812 | fragP->tc_frag_data.max_bytes = max; | |
9813 | if (fragP->tc_frag_data.max_bytes > count) | |
9814 | fragP->tc_frag_data.max_bytes -= count; | |
9815 | else | |
9816 | fragP->tc_frag_data.max_bytes = 0; | |
9817 | } | |
9818 | else | |
9819 | { | |
9820 | /* Remember the maximum prefix size in FUSED_JCC_PADDING | |
9821 | frag. */ | |
9822 | unsigned int max_prefix_size; | |
9823 | if (align_branch_prefix_size > max) | |
9824 | max_prefix_size = max; | |
9825 | else | |
9826 | max_prefix_size = align_branch_prefix_size; | |
9827 | if (max_prefix_size > count) | |
9828 | fragP->tc_frag_data.max_prefix_length | |
9829 | = max_prefix_size - count; | |
9830 | } | |
9831 | ||
9832 | /* Use existing segment prefix if possible. Use CS | |
9833 | segment prefix in 64-bit mode. In 32-bit mode, use SS | |
9834 | segment prefix with ESP/EBP base register and use DS | |
9835 | segment prefix without ESP/EBP base register. */ | |
9836 | if (i.prefix[SEG_PREFIX]) | |
9837 | fragP->tc_frag_data.default_prefix = i.prefix[SEG_PREFIX]; | |
9838 | else if (flag_code == CODE_64BIT) | |
9839 | fragP->tc_frag_data.default_prefix = CS_PREFIX_OPCODE; | |
9840 | else if (i.base_reg | |
9841 | && (i.base_reg->reg_num == 4 | |
9842 | || i.base_reg->reg_num == 5)) | |
9843 | fragP->tc_frag_data.default_prefix = SS_PREFIX_OPCODE; | |
9844 | else | |
9845 | fragP->tc_frag_data.default_prefix = DS_PREFIX_OPCODE; | |
9846 | } | |
9c33702b | 9847 | } |
29b0f896 | 9848 | } |
252b5132 | 9849 | |
e379e5f3 L |
9850 | /* NB: Don't work with COND_JUMP86 without i386. */ |
9851 | if (align_branch_power | |
9852 | && now_seg != absolute_section | |
9853 | && cpu_arch_flags.bitfield.cpui386) | |
9854 | { | |
9855 | /* Terminate each frag so that we can add prefix and check for | |
9856 | fused jcc. */ | |
9857 | frag_wane (frag_now); | |
9858 | frag_new (0); | |
9859 | } | |
9860 | ||
29b0f896 AM |
9861 | #ifdef DEBUG386 |
9862 | if (flag_debug) | |
9863 | { | |
7b81dfbb | 9864 | pi ("" /*line*/, &i); |
29b0f896 AM |
9865 | } |
9866 | #endif /* DEBUG386 */ | |
9867 | } | |
252b5132 | 9868 | |
e205caa7 L |
9869 | /* Return the size of the displacement operand N. */ |
9870 | ||
9871 | static int | |
9872 | disp_size (unsigned int n) | |
9873 | { | |
9874 | int size = 4; | |
43234a1e | 9875 | |
b5014f7a | 9876 | if (i.types[n].bitfield.disp64) |
40fb9820 L |
9877 | size = 8; |
9878 | else if (i.types[n].bitfield.disp8) | |
9879 | size = 1; | |
9880 | else if (i.types[n].bitfield.disp16) | |
9881 | size = 2; | |
e205caa7 L |
9882 | return size; |
9883 | } | |
9884 | ||
9885 | /* Return the size of the immediate operand N. */ | |
9886 | ||
9887 | static int | |
9888 | imm_size (unsigned int n) | |
9889 | { | |
9890 | int size = 4; | |
40fb9820 L |
9891 | if (i.types[n].bitfield.imm64) |
9892 | size = 8; | |
9893 | else if (i.types[n].bitfield.imm8 || i.types[n].bitfield.imm8s) | |
9894 | size = 1; | |
9895 | else if (i.types[n].bitfield.imm16) | |
9896 | size = 2; | |
e205caa7 L |
9897 | return size; |
9898 | } | |
9899 | ||
29b0f896 | 9900 | static void |
64e74474 | 9901 | output_disp (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
9902 | { |
9903 | char *p; | |
9904 | unsigned int n; | |
252b5132 | 9905 | |
29b0f896 AM |
9906 | for (n = 0; n < i.operands; n++) |
9907 | { | |
b5014f7a | 9908 | if (operand_type_check (i.types[n], disp)) |
29b0f896 | 9909 | { |
48ef937e JB |
9910 | int size = disp_size (n); |
9911 | ||
9912 | if (now_seg == absolute_section) | |
9913 | abs_section_offset += size; | |
9914 | else if (i.op[n].disps->X_op == O_constant) | |
29b0f896 | 9915 | { |
43234a1e | 9916 | offsetT val = i.op[n].disps->X_add_number; |
252b5132 | 9917 | |
629cfaf1 JB |
9918 | val = offset_in_range (val >> (size == 1 ? i.memshift : 0), |
9919 | size); | |
29b0f896 AM |
9920 | p = frag_more (size); |
9921 | md_number_to_chars (p, val, size); | |
9922 | } | |
9923 | else | |
9924 | { | |
f86103b7 | 9925 | enum bfd_reloc_code_real reloc_type; |
a775efc8 JB |
9926 | bool pcrel = (i.flags[n] & Operand_PCrel) != 0; |
9927 | bool sign = (flag_code == CODE_64BIT && size == 4 | |
9928 | && (!want_disp32 (&i.tm) | |
9929 | || (i.tm.opcode_modifier.jump && !i.jumpabsolute | |
9930 | && !i.types[n].bitfield.baseindex))) | |
9931 | || pcrel; | |
02a86693 | 9932 | fixS *fixP; |
29b0f896 | 9933 | |
e205caa7 | 9934 | /* We can't have 8 bit displacement here. */ |
9c2799c2 | 9935 | gas_assert (!i.types[n].bitfield.disp8); |
e205caa7 | 9936 | |
29b0f896 AM |
9937 | /* The PC relative address is computed relative |
9938 | to the instruction boundary, so in case immediate | |
9939 | fields follows, we need to adjust the value. */ | |
9940 | if (pcrel && i.imm_operands) | |
9941 | { | |
29b0f896 | 9942 | unsigned int n1; |
e205caa7 | 9943 | int sz = 0; |
252b5132 | 9944 | |
29b0f896 | 9945 | for (n1 = 0; n1 < i.operands; n1++) |
40fb9820 | 9946 | if (operand_type_check (i.types[n1], imm)) |
252b5132 | 9947 | { |
e205caa7 L |
9948 | /* Only one immediate is allowed for PC |
9949 | relative address. */ | |
9c2799c2 | 9950 | gas_assert (sz == 0); |
e205caa7 L |
9951 | sz = imm_size (n1); |
9952 | i.op[n].disps->X_add_number -= sz; | |
252b5132 | 9953 | } |
29b0f896 | 9954 | /* We should find the immediate. */ |
9c2799c2 | 9955 | gas_assert (sz != 0); |
29b0f896 | 9956 | } |
520dc8e8 | 9957 | |
29b0f896 | 9958 | p = frag_more (size); |
d258b828 | 9959 | reloc_type = reloc (size, pcrel, sign, i.reloc[n]); |
d6ab8113 | 9960 | if (GOT_symbol |
2bbd9c25 | 9961 | && GOT_symbol == i.op[n].disps->X_add_symbol |
d6ab8113 | 9962 | && (((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
9963 | || reloc_type == BFD_RELOC_X86_64_32S |
9964 | || (reloc_type == BFD_RELOC_64 | |
9965 | && object_64bit)) | |
d6ab8113 JB |
9966 | && (i.op[n].disps->X_op == O_symbol |
9967 | || (i.op[n].disps->X_op == O_add | |
9968 | && ((symbol_get_value_expression | |
9969 | (i.op[n].disps->X_op_symbol)->X_op) | |
9970 | == O_subtract)))) | |
9971 | || reloc_type == BFD_RELOC_32_PCREL)) | |
2bbd9c25 | 9972 | { |
4fa24527 | 9973 | if (!object_64bit) |
7b81dfbb AJ |
9974 | { |
9975 | reloc_type = BFD_RELOC_386_GOTPC; | |
5b7c81bd | 9976 | i.has_gotpc_tls_reloc = true; |
98da05bf | 9977 | i.op[n].disps->X_add_number += |
d583596c | 9978 | encoding_length (insn_start_frag, insn_start_off, p); |
7b81dfbb AJ |
9979 | } |
9980 | else if (reloc_type == BFD_RELOC_64) | |
9981 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
d6ab8113 | 9982 | else |
7b81dfbb AJ |
9983 | /* Don't do the adjustment for x86-64, as there |
9984 | the pcrel addressing is relative to the _next_ | |
9985 | insn, and that is taken care of in other code. */ | |
d6ab8113 | 9986 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
2bbd9c25 | 9987 | } |
e379e5f3 L |
9988 | else if (align_branch_power) |
9989 | { | |
9990 | switch (reloc_type) | |
9991 | { | |
9992 | case BFD_RELOC_386_TLS_GD: | |
9993 | case BFD_RELOC_386_TLS_LDM: | |
9994 | case BFD_RELOC_386_TLS_IE: | |
9995 | case BFD_RELOC_386_TLS_IE_32: | |
9996 | case BFD_RELOC_386_TLS_GOTIE: | |
9997 | case BFD_RELOC_386_TLS_GOTDESC: | |
9998 | case BFD_RELOC_386_TLS_DESC_CALL: | |
9999 | case BFD_RELOC_X86_64_TLSGD: | |
10000 | case BFD_RELOC_X86_64_TLSLD: | |
10001 | case BFD_RELOC_X86_64_GOTTPOFF: | |
10002 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: | |
10003 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
5b7c81bd | 10004 | i.has_gotpc_tls_reloc = true; |
e379e5f3 L |
10005 | default: |
10006 | break; | |
10007 | } | |
10008 | } | |
02a86693 L |
10009 | fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, |
10010 | size, i.op[n].disps, pcrel, | |
10011 | reloc_type); | |
eb19308f JB |
10012 | |
10013 | if (flag_code == CODE_64BIT && size == 4 && pcrel | |
10014 | && !i.prefix[ADDR_PREFIX]) | |
10015 | fixP->fx_signed = 1; | |
10016 | ||
02a86693 L |
10017 | /* Check for "call/jmp *mem", "mov mem, %reg", |
10018 | "test %reg, mem" and "binop mem, %reg" where binop | |
10019 | is one of adc, add, and, cmp, or, sbb, sub, xor | |
e60f4d3b L |
10020 | instructions without data prefix. Always generate |
10021 | R_386_GOT32X for "sym*GOT" operand in 32-bit mode. */ | |
10022 | if (i.prefix[DATA_PREFIX] == 0 | |
10023 | && (generate_relax_relocations | |
10024 | || (!object_64bit | |
10025 | && i.rm.mode == 0 | |
10026 | && i.rm.regmem == 5)) | |
0cb4071e L |
10027 | && (i.rm.mode == 2 |
10028 | || (i.rm.mode == 0 && i.rm.regmem == 5)) | |
389d00a5 | 10029 | && i.tm.opcode_modifier.opcodespace == SPACE_BASE |
02a86693 L |
10030 | && ((i.operands == 1 |
10031 | && i.tm.base_opcode == 0xff | |
10032 | && (i.rm.reg == 2 || i.rm.reg == 4)) | |
10033 | || (i.operands == 2 | |
10034 | && (i.tm.base_opcode == 0x8b | |
10035 | || i.tm.base_opcode == 0x85 | |
2ae4c703 | 10036 | || (i.tm.base_opcode & ~0x38) == 0x03)))) |
02a86693 L |
10037 | { |
10038 | if (object_64bit) | |
10039 | { | |
10040 | fixP->fx_tcbit = i.rex != 0; | |
10041 | if (i.base_reg | |
e968fc9b | 10042 | && (i.base_reg->reg_num == RegIP)) |
02a86693 L |
10043 | fixP->fx_tcbit2 = 1; |
10044 | } | |
10045 | else | |
10046 | fixP->fx_tcbit2 = 1; | |
10047 | } | |
29b0f896 AM |
10048 | } |
10049 | } | |
10050 | } | |
10051 | } | |
252b5132 | 10052 | |
29b0f896 | 10053 | static void |
64e74474 | 10054 | output_imm (fragS *insn_start_frag, offsetT insn_start_off) |
29b0f896 AM |
10055 | { |
10056 | char *p; | |
10057 | unsigned int n; | |
252b5132 | 10058 | |
29b0f896 AM |
10059 | for (n = 0; n < i.operands; n++) |
10060 | { | |
40fb9820 | 10061 | if (operand_type_check (i.types[n], imm)) |
29b0f896 | 10062 | { |
48ef937e JB |
10063 | int size = imm_size (n); |
10064 | ||
10065 | if (now_seg == absolute_section) | |
10066 | abs_section_offset += size; | |
10067 | else if (i.op[n].imms->X_op == O_constant) | |
29b0f896 | 10068 | { |
29b0f896 | 10069 | offsetT val; |
b4cac588 | 10070 | |
29b0f896 AM |
10071 | val = offset_in_range (i.op[n].imms->X_add_number, |
10072 | size); | |
10073 | p = frag_more (size); | |
10074 | md_number_to_chars (p, val, size); | |
10075 | } | |
10076 | else | |
10077 | { | |
10078 | /* Not absolute_section. | |
10079 | Need a 32-bit fixup (don't support 8bit | |
10080 | non-absolute imms). Try to support other | |
10081 | sizes ... */ | |
f86103b7 | 10082 | enum bfd_reloc_code_real reloc_type; |
e205caa7 | 10083 | int sign; |
29b0f896 | 10084 | |
40fb9820 | 10085 | if (i.types[n].bitfield.imm32s |
a7d61044 | 10086 | && (i.suffix == QWORD_MNEM_SUFFIX |
40fb9820 | 10087 | || (!i.suffix && i.tm.opcode_modifier.no_lsuf))) |
29b0f896 | 10088 | sign = 1; |
e205caa7 L |
10089 | else |
10090 | sign = 0; | |
520dc8e8 | 10091 | |
29b0f896 | 10092 | p = frag_more (size); |
d258b828 | 10093 | reloc_type = reloc (size, 0, sign, i.reloc[n]); |
f86103b7 | 10094 | |
2bbd9c25 JJ |
10095 | /* This is tough to explain. We end up with this one if we |
10096 | * have operands that look like | |
10097 | * "_GLOBAL_OFFSET_TABLE_+[.-.L284]". The goal here is to | |
10098 | * obtain the absolute address of the GOT, and it is strongly | |
10099 | * preferable from a performance point of view to avoid using | |
10100 | * a runtime relocation for this. The actual sequence of | |
10101 | * instructions often look something like: | |
10102 | * | |
10103 | * call .L66 | |
10104 | * .L66: | |
10105 | * popl %ebx | |
10106 | * addl $_GLOBAL_OFFSET_TABLE_+[.-.L66],%ebx | |
10107 | * | |
10108 | * The call and pop essentially return the absolute address | |
10109 | * of the label .L66 and store it in %ebx. The linker itself | |
10110 | * will ultimately change the first operand of the addl so | |
10111 | * that %ebx points to the GOT, but to keep things simple, the | |
10112 | * .o file must have this operand set so that it generates not | |
10113 | * the absolute address of .L66, but the absolute address of | |
10114 | * itself. This allows the linker itself simply treat a GOTPC | |
10115 | * relocation as asking for a pcrel offset to the GOT to be | |
10116 | * added in, and the addend of the relocation is stored in the | |
10117 | * operand field for the instruction itself. | |
10118 | * | |
10119 | * Our job here is to fix the operand so that it would add | |
10120 | * the correct offset so that %ebx would point to itself. The | |
10121 | * thing that is tricky is that .-.L66 will point to the | |
10122 | * beginning of the instruction, so we need to further modify | |
10123 | * the operand so that it will point to itself. There are | |
10124 | * other cases where you have something like: | |
10125 | * | |
10126 | * .long $_GLOBAL_OFFSET_TABLE_+[.-.L66] | |
10127 | * | |
10128 | * and here no correction would be required. Internally in | |
10129 | * the assembler we treat operands of this form as not being | |
10130 | * pcrel since the '.' is explicitly mentioned, and I wonder | |
10131 | * whether it would simplify matters to do it this way. Who | |
10132 | * knows. In earlier versions of the PIC patches, the | |
10133 | * pcrel_adjust field was used to store the correction, but | |
10134 | * since the expression is not pcrel, I felt it would be | |
10135 | * confusing to do it this way. */ | |
10136 | ||
d6ab8113 | 10137 | if ((reloc_type == BFD_RELOC_32 |
7b81dfbb AJ |
10138 | || reloc_type == BFD_RELOC_X86_64_32S |
10139 | || reloc_type == BFD_RELOC_64) | |
29b0f896 AM |
10140 | && GOT_symbol |
10141 | && GOT_symbol == i.op[n].imms->X_add_symbol | |
10142 | && (i.op[n].imms->X_op == O_symbol | |
10143 | || (i.op[n].imms->X_op == O_add | |
10144 | && ((symbol_get_value_expression | |
10145 | (i.op[n].imms->X_op_symbol)->X_op) | |
10146 | == O_subtract)))) | |
10147 | { | |
4fa24527 | 10148 | if (!object_64bit) |
d6ab8113 | 10149 | reloc_type = BFD_RELOC_386_GOTPC; |
7b81dfbb | 10150 | else if (size == 4) |
d6ab8113 | 10151 | reloc_type = BFD_RELOC_X86_64_GOTPC32; |
7b81dfbb AJ |
10152 | else if (size == 8) |
10153 | reloc_type = BFD_RELOC_X86_64_GOTPC64; | |
5b7c81bd | 10154 | i.has_gotpc_tls_reloc = true; |
d583596c JB |
10155 | i.op[n].imms->X_add_number += |
10156 | encoding_length (insn_start_frag, insn_start_off, p); | |
29b0f896 | 10157 | } |
29b0f896 AM |
10158 | fix_new_exp (frag_now, p - frag_now->fr_literal, size, |
10159 | i.op[n].imms, 0, reloc_type); | |
10160 | } | |
10161 | } | |
10162 | } | |
252b5132 RH |
10163 | } |
10164 | \f | |
d182319b JB |
10165 | /* x86_cons_fix_new is called via the expression parsing code when a |
10166 | reloc is needed. We use this hook to get the correct .got reloc. */ | |
d182319b JB |
10167 | static int cons_sign = -1; |
10168 | ||
10169 | void | |
e3bb37b5 | 10170 | x86_cons_fix_new (fragS *frag, unsigned int off, unsigned int len, |
62ebcb5c | 10171 | expressionS *exp, bfd_reloc_code_real_type r) |
d182319b | 10172 | { |
d258b828 | 10173 | r = reloc (len, 0, cons_sign, r); |
d182319b JB |
10174 | |
10175 | #ifdef TE_PE | |
10176 | if (exp->X_op == O_secrel) | |
10177 | { | |
10178 | exp->X_op = O_symbol; | |
10179 | r = BFD_RELOC_32_SECREL; | |
10180 | } | |
145667f8 MH |
10181 | else if (exp->X_op == O_secidx) |
10182 | r = BFD_RELOC_16_SECIDX; | |
d182319b JB |
10183 | #endif |
10184 | ||
10185 | fix_new_exp (frag, off, len, exp, 0, r); | |
10186 | } | |
10187 | ||
357d1bd8 L |
10188 | /* Export the ABI address size for use by TC_ADDRESS_BYTES for the |
10189 | purpose of the `.dc.a' internal pseudo-op. */ | |
10190 | ||
10191 | int | |
10192 | x86_address_bytes (void) | |
10193 | { | |
10194 | if ((stdoutput->arch_info->mach & bfd_mach_x64_32)) | |
10195 | return 4; | |
10196 | return stdoutput->arch_info->bits_per_address / 8; | |
10197 | } | |
10198 | ||
deea4973 JB |
10199 | #if (!(defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) || defined (OBJ_MACH_O)) \ |
10200 | || defined (LEX_AT)) && !defined (TE_PE) | |
d258b828 | 10201 | # define lex_got(reloc, adjust, types) NULL |
718ddfc0 | 10202 | #else |
f3c180ae AM |
10203 | /* Parse operands of the form |
10204 | <symbol>@GOTOFF+<nnn> | |
10205 | and similar .plt or .got references. | |
10206 | ||
10207 | If we find one, set up the correct relocation in RELOC and copy the | |
10208 | input string, minus the `@GOTOFF' into a malloc'd buffer for | |
10209 | parsing by the calling routine. Return this buffer, and if ADJUST | |
10210 | is non-null set it to the length of the string we removed from the | |
10211 | input line. Otherwise return NULL. */ | |
10212 | static char * | |
91d6fa6a | 10213 | lex_got (enum bfd_reloc_code_real *rel, |
64e74474 | 10214 | int *adjust, |
d258b828 | 10215 | i386_operand_type *types) |
f3c180ae | 10216 | { |
7b81dfbb AJ |
10217 | /* Some of the relocations depend on the size of what field is to |
10218 | be relocated. But in our callers i386_immediate and i386_displacement | |
10219 | we don't yet know the operand size (this will be set by insn | |
10220 | matching). Hence we record the word32 relocation here, | |
10221 | and adjust the reloc according to the real size in reloc(). */ | |
145667f8 MH |
10222 | static const struct |
10223 | { | |
f3c180ae | 10224 | const char *str; |
cff8d58a | 10225 | int len; |
4fa24527 | 10226 | const enum bfd_reloc_code_real rel[2]; |
40fb9820 | 10227 | const i386_operand_type types64; |
5b7c81bd | 10228 | bool need_GOT_symbol; |
145667f8 MH |
10229 | } |
10230 | gotrel[] = | |
10231 | { | |
deea4973 | 10232 | #ifndef TE_PE |
8ce3d284 | 10233 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8fd4256d L |
10234 | { STRING_COMMA_LEN ("SIZE"), { BFD_RELOC_SIZE32, |
10235 | BFD_RELOC_SIZE32 }, | |
5b7c81bd | 10236 | OPERAND_TYPE_IMM32_64, false }, |
8ce3d284 | 10237 | #endif |
cff8d58a L |
10238 | { STRING_COMMA_LEN ("PLTOFF"), { _dummy_first_bfd_reloc_code_real, |
10239 | BFD_RELOC_X86_64_PLTOFF64 }, | |
5b7c81bd | 10240 | OPERAND_TYPE_IMM64, true }, |
cff8d58a L |
10241 | { STRING_COMMA_LEN ("PLT"), { BFD_RELOC_386_PLT32, |
10242 | BFD_RELOC_X86_64_PLT32 }, | |
a775efc8 | 10243 | OPERAND_TYPE_IMM32_32S_DISP32, false }, |
cff8d58a L |
10244 | { STRING_COMMA_LEN ("GOTPLT"), { _dummy_first_bfd_reloc_code_real, |
10245 | BFD_RELOC_X86_64_GOTPLT64 }, | |
5b7c81bd | 10246 | OPERAND_TYPE_IMM64_DISP64, true }, |
cff8d58a L |
10247 | { STRING_COMMA_LEN ("GOTOFF"), { BFD_RELOC_386_GOTOFF, |
10248 | BFD_RELOC_X86_64_GOTOFF64 }, | |
5b7c81bd | 10249 | OPERAND_TYPE_IMM64_DISP64, true }, |
cff8d58a L |
10250 | { STRING_COMMA_LEN ("GOTPCREL"), { _dummy_first_bfd_reloc_code_real, |
10251 | BFD_RELOC_X86_64_GOTPCREL }, | |
a775efc8 | 10252 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10253 | { STRING_COMMA_LEN ("TLSGD"), { BFD_RELOC_386_TLS_GD, |
10254 | BFD_RELOC_X86_64_TLSGD }, | |
a775efc8 | 10255 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10256 | { STRING_COMMA_LEN ("TLSLDM"), { BFD_RELOC_386_TLS_LDM, |
10257 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10258 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10259 | { STRING_COMMA_LEN ("TLSLD"), { _dummy_first_bfd_reloc_code_real, |
10260 | BFD_RELOC_X86_64_TLSLD }, | |
a775efc8 | 10261 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10262 | { STRING_COMMA_LEN ("GOTTPOFF"), { BFD_RELOC_386_TLS_IE_32, |
10263 | BFD_RELOC_X86_64_GOTTPOFF }, | |
a775efc8 | 10264 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10265 | { STRING_COMMA_LEN ("TPOFF"), { BFD_RELOC_386_TLS_LE_32, |
10266 | BFD_RELOC_X86_64_TPOFF32 }, | |
a775efc8 | 10267 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, true }, |
cff8d58a L |
10268 | { STRING_COMMA_LEN ("NTPOFF"), { BFD_RELOC_386_TLS_LE, |
10269 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10270 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10271 | { STRING_COMMA_LEN ("DTPOFF"), { BFD_RELOC_386_TLS_LDO_32, |
10272 | BFD_RELOC_X86_64_DTPOFF32 }, | |
a775efc8 | 10273 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, true }, |
cff8d58a L |
10274 | { STRING_COMMA_LEN ("GOTNTPOFF"),{ BFD_RELOC_386_TLS_GOTIE, |
10275 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10276 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10277 | { STRING_COMMA_LEN ("INDNTPOFF"),{ BFD_RELOC_386_TLS_IE, |
10278 | _dummy_first_bfd_reloc_code_real }, | |
5b7c81bd | 10279 | OPERAND_TYPE_NONE, true }, |
cff8d58a L |
10280 | { STRING_COMMA_LEN ("GOT"), { BFD_RELOC_386_GOT32, |
10281 | BFD_RELOC_X86_64_GOT32 }, | |
a775efc8 | 10282 | OPERAND_TYPE_IMM32_32S_64_DISP32, true }, |
cff8d58a L |
10283 | { STRING_COMMA_LEN ("TLSDESC"), { BFD_RELOC_386_TLS_GOTDESC, |
10284 | BFD_RELOC_X86_64_GOTPC32_TLSDESC }, | |
a775efc8 | 10285 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
cff8d58a L |
10286 | { STRING_COMMA_LEN ("TLSCALL"), { BFD_RELOC_386_TLS_DESC_CALL, |
10287 | BFD_RELOC_X86_64_TLSDESC_CALL }, | |
a775efc8 | 10288 | OPERAND_TYPE_IMM32_32S_DISP32, true }, |
deea4973 JB |
10289 | #else /* TE_PE */ |
10290 | { STRING_COMMA_LEN ("SECREL32"), { BFD_RELOC_32_SECREL, | |
10291 | BFD_RELOC_32_SECREL }, | |
a775efc8 | 10292 | OPERAND_TYPE_IMM32_32S_64_DISP32_64, false }, |
deea4973 | 10293 | #endif |
f3c180ae AM |
10294 | }; |
10295 | char *cp; | |
10296 | unsigned int j; | |
10297 | ||
deea4973 | 10298 | #if defined (OBJ_MAYBE_ELF) && !defined (TE_PE) |
718ddfc0 JB |
10299 | if (!IS_ELF) |
10300 | return NULL; | |
d382c579 | 10301 | #endif |
718ddfc0 | 10302 | |
f3c180ae | 10303 | for (cp = input_line_pointer; *cp != '@'; cp++) |
67c11a9b | 10304 | if (is_end_of_line[(unsigned char) *cp] || *cp == ',') |
f3c180ae AM |
10305 | return NULL; |
10306 | ||
47465058 | 10307 | for (j = 0; j < ARRAY_SIZE (gotrel); j++) |
f3c180ae | 10308 | { |
cff8d58a | 10309 | int len = gotrel[j].len; |
28f81592 | 10310 | if (strncasecmp (cp + 1, gotrel[j].str, len) == 0) |
f3c180ae | 10311 | { |
4fa24527 | 10312 | if (gotrel[j].rel[object_64bit] != 0) |
f3c180ae | 10313 | { |
28f81592 AM |
10314 | int first, second; |
10315 | char *tmpbuf, *past_reloc; | |
f3c180ae | 10316 | |
91d6fa6a | 10317 | *rel = gotrel[j].rel[object_64bit]; |
f3c180ae | 10318 | |
3956db08 JB |
10319 | if (types) |
10320 | { | |
10321 | if (flag_code != CODE_64BIT) | |
40fb9820 L |
10322 | { |
10323 | types->bitfield.imm32 = 1; | |
10324 | types->bitfield.disp32 = 1; | |
10325 | } | |
3956db08 JB |
10326 | else |
10327 | *types = gotrel[j].types64; | |
10328 | } | |
10329 | ||
844bf810 | 10330 | if (gotrel[j].need_GOT_symbol && GOT_symbol == NULL) |
f3c180ae AM |
10331 | GOT_symbol = symbol_find_or_make (GLOBAL_OFFSET_TABLE_NAME); |
10332 | ||
28f81592 | 10333 | /* The length of the first part of our input line. */ |
f3c180ae | 10334 | first = cp - input_line_pointer; |
28f81592 AM |
10335 | |
10336 | /* The second part goes from after the reloc token until | |
67c11a9b | 10337 | (and including) an end_of_line char or comma. */ |
28f81592 | 10338 | past_reloc = cp + 1 + len; |
67c11a9b AM |
10339 | cp = past_reloc; |
10340 | while (!is_end_of_line[(unsigned char) *cp] && *cp != ',') | |
10341 | ++cp; | |
10342 | second = cp + 1 - past_reloc; | |
28f81592 AM |
10343 | |
10344 | /* Allocate and copy string. The trailing NUL shouldn't | |
10345 | be necessary, but be safe. */ | |
add39d23 | 10346 | tmpbuf = XNEWVEC (char, first + second + 2); |
f3c180ae | 10347 | memcpy (tmpbuf, input_line_pointer, first); |
0787a12d AM |
10348 | if (second != 0 && *past_reloc != ' ') |
10349 | /* Replace the relocation token with ' ', so that | |
10350 | errors like foo@GOTOFF1 will be detected. */ | |
10351 | tmpbuf[first++] = ' '; | |
af89796a L |
10352 | else |
10353 | /* Increment length by 1 if the relocation token is | |
10354 | removed. */ | |
10355 | len++; | |
10356 | if (adjust) | |
10357 | *adjust = len; | |
0787a12d AM |
10358 | memcpy (tmpbuf + first, past_reloc, second); |
10359 | tmpbuf[first + second] = '\0'; | |
f3c180ae AM |
10360 | return tmpbuf; |
10361 | } | |
10362 | ||
4fa24527 JB |
10363 | as_bad (_("@%s reloc is not supported with %d-bit output format"), |
10364 | gotrel[j].str, 1 << (5 + object_64bit)); | |
f3c180ae AM |
10365 | return NULL; |
10366 | } | |
10367 | } | |
10368 | ||
10369 | /* Might be a symbol version string. Don't as_bad here. */ | |
10370 | return NULL; | |
10371 | } | |
4e4f7c87 | 10372 | #endif |
f3c180ae | 10373 | |
62ebcb5c | 10374 | bfd_reloc_code_real_type |
e3bb37b5 | 10375 | x86_cons (expressionS *exp, int size) |
f3c180ae | 10376 | { |
62ebcb5c AM |
10377 | bfd_reloc_code_real_type got_reloc = NO_RELOC; |
10378 | ||
2748c1b1 L |
10379 | #if ((defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) \ |
10380 | && !defined (LEX_AT)) \ | |
10381 | || defined (TE_PE) | |
ee86248c JB |
10382 | intel_syntax = -intel_syntax; |
10383 | ||
3c7b9c2c | 10384 | exp->X_md = 0; |
4fa24527 | 10385 | if (size == 4 || (object_64bit && size == 8)) |
f3c180ae AM |
10386 | { |
10387 | /* Handle @GOTOFF and the like in an expression. */ | |
10388 | char *save; | |
10389 | char *gotfree_input_line; | |
4a57f2cf | 10390 | int adjust = 0; |
f3c180ae AM |
10391 | |
10392 | save = input_line_pointer; | |
d258b828 | 10393 | gotfree_input_line = lex_got (&got_reloc, &adjust, NULL); |
f3c180ae AM |
10394 | if (gotfree_input_line) |
10395 | input_line_pointer = gotfree_input_line; | |
10396 | ||
10397 | expression (exp); | |
10398 | ||
10399 | if (gotfree_input_line) | |
10400 | { | |
10401 | /* expression () has merrily parsed up to the end of line, | |
10402 | or a comma - in the wrong buffer. Transfer how far | |
10403 | input_line_pointer has moved to the right buffer. */ | |
10404 | input_line_pointer = (save | |
10405 | + (input_line_pointer - gotfree_input_line) | |
10406 | + adjust); | |
10407 | free (gotfree_input_line); | |
3992d3b7 AM |
10408 | if (exp->X_op == O_constant |
10409 | || exp->X_op == O_absent | |
10410 | || exp->X_op == O_illegal | |
0398aac5 | 10411 | || exp->X_op == O_register |
3992d3b7 AM |
10412 | || exp->X_op == O_big) |
10413 | { | |
10414 | char c = *input_line_pointer; | |
10415 | *input_line_pointer = 0; | |
10416 | as_bad (_("missing or invalid expression `%s'"), save); | |
10417 | *input_line_pointer = c; | |
10418 | } | |
b9519cfe L |
10419 | else if ((got_reloc == BFD_RELOC_386_PLT32 |
10420 | || got_reloc == BFD_RELOC_X86_64_PLT32) | |
10421 | && exp->X_op != O_symbol) | |
10422 | { | |
10423 | char c = *input_line_pointer; | |
10424 | *input_line_pointer = 0; | |
10425 | as_bad (_("invalid PLT expression `%s'"), save); | |
10426 | *input_line_pointer = c; | |
10427 | } | |
f3c180ae AM |
10428 | } |
10429 | } | |
10430 | else | |
10431 | expression (exp); | |
ee86248c JB |
10432 | |
10433 | intel_syntax = -intel_syntax; | |
10434 | ||
10435 | if (intel_syntax) | |
10436 | i386_intel_simplify (exp); | |
2748c1b1 L |
10437 | #else |
10438 | expression (exp); | |
10439 | #endif | |
62ebcb5c | 10440 | |
a442cac5 JB |
10441 | /* If not 64bit, massage value, to account for wraparound when !BFD64. */ |
10442 | if (size == 4 && exp->X_op == O_constant && !object_64bit) | |
10443 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
10444 | ||
62ebcb5c | 10445 | return got_reloc; |
f3c180ae | 10446 | } |
f3c180ae | 10447 | |
9f32dd5b L |
10448 | static void |
10449 | signed_cons (int size) | |
6482c264 | 10450 | { |
a442cac5 | 10451 | if (object_64bit) |
d182319b JB |
10452 | cons_sign = 1; |
10453 | cons (size); | |
10454 | cons_sign = -1; | |
6482c264 NC |
10455 | } |
10456 | ||
d182319b | 10457 | #ifdef TE_PE |
6482c264 | 10458 | static void |
7016a5d5 | 10459 | pe_directive_secrel (int dummy ATTRIBUTE_UNUSED) |
6482c264 NC |
10460 | { |
10461 | expressionS exp; | |
10462 | ||
10463 | do | |
10464 | { | |
10465 | expression (&exp); | |
10466 | if (exp.X_op == O_symbol) | |
10467 | exp.X_op = O_secrel; | |
10468 | ||
10469 | emit_expr (&exp, 4); | |
10470 | } | |
10471 | while (*input_line_pointer++ == ','); | |
10472 | ||
10473 | input_line_pointer--; | |
10474 | demand_empty_rest_of_line (); | |
10475 | } | |
145667f8 MH |
10476 | |
10477 | static void | |
10478 | pe_directive_secidx (int dummy ATTRIBUTE_UNUSED) | |
10479 | { | |
10480 | expressionS exp; | |
10481 | ||
10482 | do | |
10483 | { | |
10484 | expression (&exp); | |
10485 | if (exp.X_op == O_symbol) | |
10486 | exp.X_op = O_secidx; | |
10487 | ||
10488 | emit_expr (&exp, 2); | |
10489 | } | |
10490 | while (*input_line_pointer++ == ','); | |
10491 | ||
10492 | input_line_pointer--; | |
10493 | demand_empty_rest_of_line (); | |
10494 | } | |
6482c264 NC |
10495 | #endif |
10496 | ||
7063667e JB |
10497 | /* Handle Rounding Control / SAE specifiers. */ |
10498 | ||
10499 | static char * | |
10500 | RC_SAE_specifier (const char *pstr) | |
10501 | { | |
10502 | unsigned int j; | |
10503 | ||
10504 | for (j = 0; j < ARRAY_SIZE (RC_NamesTable); j++) | |
10505 | { | |
10506 | if (!strncmp (pstr, RC_NamesTable[j].name, RC_NamesTable[j].len)) | |
10507 | { | |
10508 | if (i.rounding.type != rc_none) | |
10509 | { | |
10510 | as_bad (_("duplicated `{%s}'"), RC_NamesTable[j].name); | |
10511 | return NULL; | |
10512 | } | |
10513 | ||
10514 | i.rounding.type = RC_NamesTable[j].type; | |
10515 | ||
10516 | return (char *)(pstr + RC_NamesTable[j].len); | |
10517 | } | |
10518 | } | |
10519 | ||
10520 | return NULL; | |
10521 | } | |
10522 | ||
43234a1e L |
10523 | /* Handle Vector operations. */ |
10524 | ||
10525 | static char * | |
f70c6814 | 10526 | check_VecOperations (char *op_string) |
43234a1e L |
10527 | { |
10528 | const reg_entry *mask; | |
10529 | const char *saved; | |
10530 | char *end_op; | |
10531 | ||
f70c6814 | 10532 | while (*op_string) |
43234a1e L |
10533 | { |
10534 | saved = op_string; | |
10535 | if (*op_string == '{') | |
10536 | { | |
10537 | op_string++; | |
10538 | ||
10539 | /* Check broadcasts. */ | |
d34049e8 | 10540 | if (startswith (op_string, "1to")) |
43234a1e | 10541 | { |
5273a3cd | 10542 | unsigned int bcst_type; |
43234a1e | 10543 | |
5273a3cd | 10544 | if (i.broadcast.type) |
43234a1e L |
10545 | goto duplicated_vec_op; |
10546 | ||
10547 | op_string += 3; | |
10548 | if (*op_string == '8') | |
8e6e0792 | 10549 | bcst_type = 8; |
b28d1bda | 10550 | else if (*op_string == '4') |
8e6e0792 | 10551 | bcst_type = 4; |
b28d1bda | 10552 | else if (*op_string == '2') |
8e6e0792 | 10553 | bcst_type = 2; |
43234a1e L |
10554 | else if (*op_string == '1' |
10555 | && *(op_string+1) == '6') | |
10556 | { | |
8e6e0792 | 10557 | bcst_type = 16; |
43234a1e L |
10558 | op_string++; |
10559 | } | |
0cc78721 CL |
10560 | else if (*op_string == '3' |
10561 | && *(op_string+1) == '2') | |
10562 | { | |
10563 | bcst_type = 32; | |
10564 | op_string++; | |
10565 | } | |
43234a1e L |
10566 | else |
10567 | { | |
10568 | as_bad (_("Unsupported broadcast: `%s'"), saved); | |
10569 | return NULL; | |
10570 | } | |
10571 | op_string++; | |
10572 | ||
5273a3cd JB |
10573 | i.broadcast.type = bcst_type; |
10574 | i.broadcast.operand = this_operand; | |
43234a1e L |
10575 | } |
10576 | /* Check masking operation. */ | |
10577 | else if ((mask = parse_register (op_string, &end_op)) != NULL) | |
10578 | { | |
8a6fb3f9 JB |
10579 | if (mask == &bad_reg) |
10580 | return NULL; | |
10581 | ||
43234a1e | 10582 | /* k0 can't be used for write mask. */ |
f74a6307 | 10583 | if (mask->reg_type.bitfield.class != RegMask || !mask->reg_num) |
43234a1e | 10584 | { |
6d2cd6b2 JB |
10585 | as_bad (_("`%s%s' can't be used for write mask"), |
10586 | register_prefix, mask->reg_name); | |
43234a1e L |
10587 | return NULL; |
10588 | } | |
10589 | ||
6225c532 | 10590 | if (!i.mask.reg) |
43234a1e | 10591 | { |
6225c532 JB |
10592 | i.mask.reg = mask; |
10593 | i.mask.operand = this_operand; | |
43234a1e | 10594 | } |
6225c532 JB |
10595 | else if (i.mask.reg->reg_num) |
10596 | goto duplicated_vec_op; | |
43234a1e L |
10597 | else |
10598 | { | |
6225c532 | 10599 | i.mask.reg = mask; |
43234a1e L |
10600 | |
10601 | /* Only "{z}" is allowed here. No need to check | |
10602 | zeroing mask explicitly. */ | |
6225c532 | 10603 | if (i.mask.operand != (unsigned int) this_operand) |
43234a1e L |
10604 | { |
10605 | as_bad (_("invalid write mask `%s'"), saved); | |
10606 | return NULL; | |
10607 | } | |
10608 | } | |
10609 | ||
10610 | op_string = end_op; | |
10611 | } | |
10612 | /* Check zeroing-flag for masking operation. */ | |
10613 | else if (*op_string == 'z') | |
10614 | { | |
6225c532 | 10615 | if (!i.mask.reg) |
43234a1e | 10616 | { |
6225c532 JB |
10617 | i.mask.reg = reg_k0; |
10618 | i.mask.zeroing = 1; | |
10619 | i.mask.operand = this_operand; | |
43234a1e L |
10620 | } |
10621 | else | |
10622 | { | |
6225c532 | 10623 | if (i.mask.zeroing) |
43234a1e L |
10624 | { |
10625 | duplicated_vec_op: | |
10626 | as_bad (_("duplicated `%s'"), saved); | |
10627 | return NULL; | |
10628 | } | |
10629 | ||
6225c532 | 10630 | i.mask.zeroing = 1; |
43234a1e L |
10631 | |
10632 | /* Only "{%k}" is allowed here. No need to check mask | |
10633 | register explicitly. */ | |
6225c532 | 10634 | if (i.mask.operand != (unsigned int) this_operand) |
43234a1e L |
10635 | { |
10636 | as_bad (_("invalid zeroing-masking `%s'"), | |
10637 | saved); | |
10638 | return NULL; | |
10639 | } | |
10640 | } | |
10641 | ||
10642 | op_string++; | |
10643 | } | |
7063667e JB |
10644 | else if (intel_syntax |
10645 | && (op_string = RC_SAE_specifier (op_string)) != NULL) | |
10646 | i.rounding.modifier = true; | |
43234a1e L |
10647 | else |
10648 | goto unknown_vec_op; | |
10649 | ||
10650 | if (*op_string != '}') | |
10651 | { | |
10652 | as_bad (_("missing `}' in `%s'"), saved); | |
10653 | return NULL; | |
10654 | } | |
10655 | op_string++; | |
0ba3a731 L |
10656 | |
10657 | /* Strip whitespace since the addition of pseudo prefixes | |
10658 | changed how the scrubber treats '{'. */ | |
10659 | if (is_space_char (*op_string)) | |
10660 | ++op_string; | |
10661 | ||
43234a1e L |
10662 | continue; |
10663 | } | |
10664 | unknown_vec_op: | |
10665 | /* We don't know this one. */ | |
10666 | as_bad (_("unknown vector operation: `%s'"), saved); | |
10667 | return NULL; | |
10668 | } | |
10669 | ||
6225c532 | 10670 | if (i.mask.reg && i.mask.zeroing && !i.mask.reg->reg_num) |
6d2cd6b2 JB |
10671 | { |
10672 | as_bad (_("zeroing-masking only allowed with write mask")); | |
10673 | return NULL; | |
10674 | } | |
10675 | ||
43234a1e L |
10676 | return op_string; |
10677 | } | |
10678 | ||
252b5132 | 10679 | static int |
70e41ade | 10680 | i386_immediate (char *imm_start) |
252b5132 RH |
10681 | { |
10682 | char *save_input_line_pointer; | |
f3c180ae | 10683 | char *gotfree_input_line; |
252b5132 | 10684 | segT exp_seg = 0; |
47926f60 | 10685 | expressionS *exp; |
40fb9820 L |
10686 | i386_operand_type types; |
10687 | ||
0dfbf9d7 | 10688 | operand_type_set (&types, ~0); |
252b5132 RH |
10689 | |
10690 | if (i.imm_operands == MAX_IMMEDIATE_OPERANDS) | |
10691 | { | |
31b2323c L |
10692 | as_bad (_("at most %d immediate operands are allowed"), |
10693 | MAX_IMMEDIATE_OPERANDS); | |
252b5132 RH |
10694 | return 0; |
10695 | } | |
10696 | ||
10697 | exp = &im_expressions[i.imm_operands++]; | |
520dc8e8 | 10698 | i.op[this_operand].imms = exp; |
252b5132 RH |
10699 | |
10700 | if (is_space_char (*imm_start)) | |
10701 | ++imm_start; | |
10702 | ||
10703 | save_input_line_pointer = input_line_pointer; | |
10704 | input_line_pointer = imm_start; | |
10705 | ||
d258b828 | 10706 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
10707 | if (gotfree_input_line) |
10708 | input_line_pointer = gotfree_input_line; | |
252b5132 RH |
10709 | |
10710 | exp_seg = expression (exp); | |
10711 | ||
83183c0c | 10712 | SKIP_WHITESPACE (); |
252b5132 | 10713 | if (*input_line_pointer) |
f3c180ae | 10714 | as_bad (_("junk `%s' after expression"), input_line_pointer); |
252b5132 RH |
10715 | |
10716 | input_line_pointer = save_input_line_pointer; | |
f3c180ae | 10717 | if (gotfree_input_line) |
ee86248c JB |
10718 | { |
10719 | free (gotfree_input_line); | |
10720 | ||
9aac24b1 | 10721 | if (exp->X_op == O_constant) |
ee86248c JB |
10722 | exp->X_op = O_illegal; |
10723 | } | |
10724 | ||
9aac24b1 JB |
10725 | if (exp_seg == reg_section) |
10726 | { | |
10727 | as_bad (_("illegal immediate register operand %s"), imm_start); | |
10728 | return 0; | |
10729 | } | |
10730 | ||
ee86248c JB |
10731 | return i386_finalize_immediate (exp_seg, exp, types, imm_start); |
10732 | } | |
252b5132 | 10733 | |
ee86248c JB |
10734 | static int |
10735 | i386_finalize_immediate (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
10736 | i386_operand_type types, const char *imm_start) | |
10737 | { | |
10738 | if (exp->X_op == O_absent || exp->X_op == O_illegal || exp->X_op == O_big) | |
252b5132 | 10739 | { |
313c53d1 L |
10740 | if (imm_start) |
10741 | as_bad (_("missing or invalid immediate expression `%s'"), | |
10742 | imm_start); | |
3992d3b7 | 10743 | return 0; |
252b5132 | 10744 | } |
3e73aa7c | 10745 | else if (exp->X_op == O_constant) |
252b5132 | 10746 | { |
47926f60 | 10747 | /* Size it properly later. */ |
40fb9820 | 10748 | i.types[this_operand].bitfield.imm64 = 1; |
a442cac5 JB |
10749 | |
10750 | /* If not 64bit, sign/zero extend val, to account for wraparound | |
10751 | when !BFD64. */ | |
10752 | if (flag_code != CODE_64BIT) | |
10753 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
252b5132 | 10754 | } |
4c63da97 | 10755 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
f86103b7 | 10756 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
31312f95 | 10757 | && exp_seg != absolute_section |
47926f60 | 10758 | && exp_seg != text_section |
24eab124 AM |
10759 | && exp_seg != data_section |
10760 | && exp_seg != bss_section | |
10761 | && exp_seg != undefined_section | |
f86103b7 | 10762 | && !bfd_is_com_section (exp_seg)) |
252b5132 | 10763 | { |
d0b47220 | 10764 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
252b5132 RH |
10765 | return 0; |
10766 | } | |
10767 | #endif | |
10768 | else | |
10769 | { | |
10770 | /* This is an address. The size of the address will be | |
24eab124 | 10771 | determined later, depending on destination register, |
3e73aa7c | 10772 | suffix, or the default for the section. */ |
40fb9820 L |
10773 | i.types[this_operand].bitfield.imm8 = 1; |
10774 | i.types[this_operand].bitfield.imm16 = 1; | |
10775 | i.types[this_operand].bitfield.imm32 = 1; | |
10776 | i.types[this_operand].bitfield.imm32s = 1; | |
10777 | i.types[this_operand].bitfield.imm64 = 1; | |
c6fb90c8 L |
10778 | i.types[this_operand] = operand_type_and (i.types[this_operand], |
10779 | types); | |
252b5132 RH |
10780 | } |
10781 | ||
10782 | return 1; | |
10783 | } | |
10784 | ||
551c1ca1 | 10785 | static char * |
e3bb37b5 | 10786 | i386_scale (char *scale) |
252b5132 | 10787 | { |
551c1ca1 AM |
10788 | offsetT val; |
10789 | char *save = input_line_pointer; | |
252b5132 | 10790 | |
551c1ca1 AM |
10791 | input_line_pointer = scale; |
10792 | val = get_absolute_expression (); | |
10793 | ||
10794 | switch (val) | |
252b5132 | 10795 | { |
551c1ca1 | 10796 | case 1: |
252b5132 RH |
10797 | i.log2_scale_factor = 0; |
10798 | break; | |
551c1ca1 | 10799 | case 2: |
252b5132 RH |
10800 | i.log2_scale_factor = 1; |
10801 | break; | |
551c1ca1 | 10802 | case 4: |
252b5132 RH |
10803 | i.log2_scale_factor = 2; |
10804 | break; | |
551c1ca1 | 10805 | case 8: |
252b5132 RH |
10806 | i.log2_scale_factor = 3; |
10807 | break; | |
10808 | default: | |
a724f0f4 JB |
10809 | { |
10810 | char sep = *input_line_pointer; | |
10811 | ||
10812 | *input_line_pointer = '\0'; | |
10813 | as_bad (_("expecting scale factor of 1, 2, 4, or 8: got `%s'"), | |
10814 | scale); | |
10815 | *input_line_pointer = sep; | |
10816 | input_line_pointer = save; | |
10817 | return NULL; | |
10818 | } | |
252b5132 | 10819 | } |
29b0f896 | 10820 | if (i.log2_scale_factor != 0 && i.index_reg == 0) |
252b5132 RH |
10821 | { |
10822 | as_warn (_("scale factor of %d without an index register"), | |
24eab124 | 10823 | 1 << i.log2_scale_factor); |
252b5132 | 10824 | i.log2_scale_factor = 0; |
252b5132 | 10825 | } |
551c1ca1 AM |
10826 | scale = input_line_pointer; |
10827 | input_line_pointer = save; | |
10828 | return scale; | |
252b5132 RH |
10829 | } |
10830 | ||
252b5132 | 10831 | static int |
e3bb37b5 | 10832 | i386_displacement (char *disp_start, char *disp_end) |
252b5132 | 10833 | { |
29b0f896 | 10834 | expressionS *exp; |
252b5132 RH |
10835 | segT exp_seg = 0; |
10836 | char *save_input_line_pointer; | |
f3c180ae | 10837 | char *gotfree_input_line; |
40fb9820 L |
10838 | int override; |
10839 | i386_operand_type bigdisp, types = anydisp; | |
3992d3b7 | 10840 | int ret; |
252b5132 | 10841 | |
31b2323c L |
10842 | if (i.disp_operands == MAX_MEMORY_OPERANDS) |
10843 | { | |
10844 | as_bad (_("at most %d displacement operands are allowed"), | |
10845 | MAX_MEMORY_OPERANDS); | |
10846 | return 0; | |
10847 | } | |
10848 | ||
0dfbf9d7 | 10849 | operand_type_set (&bigdisp, 0); |
6f2f06be | 10850 | if (i.jumpabsolute |
48bcea9f | 10851 | || i.types[this_operand].bitfield.baseindex |
0cfa3eb3 JB |
10852 | || (current_templates->start->opcode_modifier.jump != JUMP |
10853 | && current_templates->start->opcode_modifier.jump != JUMP_DWORD)) | |
e05278af | 10854 | { |
48bcea9f | 10855 | i386_addressing_mode (); |
e05278af | 10856 | override = (i.prefix[ADDR_PREFIX] != 0); |
40fb9820 L |
10857 | if (flag_code == CODE_64BIT) |
10858 | { | |
a775efc8 | 10859 | bigdisp.bitfield.disp32 = 1; |
40fb9820 | 10860 | if (!override) |
a775efc8 | 10861 | bigdisp.bitfield.disp64 = 1; |
40fb9820 L |
10862 | } |
10863 | else if ((flag_code == CODE_16BIT) ^ override) | |
40fb9820 | 10864 | bigdisp.bitfield.disp16 = 1; |
48bcea9f JB |
10865 | else |
10866 | bigdisp.bitfield.disp32 = 1; | |
e05278af JB |
10867 | } |
10868 | else | |
10869 | { | |
376cd056 JB |
10870 | /* For PC-relative branches, the width of the displacement may be |
10871 | dependent upon data size, but is never dependent upon address size. | |
10872 | Also make sure to not unintentionally match against a non-PC-relative | |
10873 | branch template. */ | |
10874 | static templates aux_templates; | |
10875 | const insn_template *t = current_templates->start; | |
5b7c81bd | 10876 | bool has_intel64 = false; |
376cd056 JB |
10877 | |
10878 | aux_templates.start = t; | |
10879 | while (++t < current_templates->end) | |
10880 | { | |
10881 | if (t->opcode_modifier.jump | |
10882 | != current_templates->start->opcode_modifier.jump) | |
10883 | break; | |
4b5aaf5f | 10884 | if ((t->opcode_modifier.isa64 >= INTEL64)) |
5b7c81bd | 10885 | has_intel64 = true; |
376cd056 JB |
10886 | } |
10887 | if (t < current_templates->end) | |
10888 | { | |
10889 | aux_templates.end = t; | |
10890 | current_templates = &aux_templates; | |
10891 | } | |
10892 | ||
e05278af | 10893 | override = (i.prefix[DATA_PREFIX] != 0); |
40fb9820 L |
10894 | if (flag_code == CODE_64BIT) |
10895 | { | |
376cd056 JB |
10896 | if ((override || i.suffix == WORD_MNEM_SUFFIX) |
10897 | && (!intel64 || !has_intel64)) | |
40fb9820 L |
10898 | bigdisp.bitfield.disp16 = 1; |
10899 | else | |
a775efc8 | 10900 | bigdisp.bitfield.disp32 = 1; |
40fb9820 L |
10901 | } |
10902 | else | |
e05278af JB |
10903 | { |
10904 | if (!override) | |
10905 | override = (i.suffix == (flag_code != CODE_16BIT | |
10906 | ? WORD_MNEM_SUFFIX | |
10907 | : LONG_MNEM_SUFFIX)); | |
40fb9820 L |
10908 | bigdisp.bitfield.disp32 = 1; |
10909 | if ((flag_code == CODE_16BIT) ^ override) | |
10910 | { | |
10911 | bigdisp.bitfield.disp32 = 0; | |
10912 | bigdisp.bitfield.disp16 = 1; | |
10913 | } | |
e05278af | 10914 | } |
e05278af | 10915 | } |
c6fb90c8 L |
10916 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
10917 | bigdisp); | |
252b5132 RH |
10918 | |
10919 | exp = &disp_expressions[i.disp_operands]; | |
520dc8e8 | 10920 | i.op[this_operand].disps = exp; |
252b5132 RH |
10921 | i.disp_operands++; |
10922 | save_input_line_pointer = input_line_pointer; | |
10923 | input_line_pointer = disp_start; | |
10924 | END_STRING_AND_SAVE (disp_end); | |
10925 | ||
10926 | #ifndef GCC_ASM_O_HACK | |
10927 | #define GCC_ASM_O_HACK 0 | |
10928 | #endif | |
10929 | #if GCC_ASM_O_HACK | |
10930 | END_STRING_AND_SAVE (disp_end + 1); | |
40fb9820 | 10931 | if (i.types[this_operand].bitfield.baseIndex |
24eab124 | 10932 | && displacement_string_end[-1] == '+') |
252b5132 RH |
10933 | { |
10934 | /* This hack is to avoid a warning when using the "o" | |
24eab124 AM |
10935 | constraint within gcc asm statements. |
10936 | For instance: | |
10937 | ||
10938 | #define _set_tssldt_desc(n,addr,limit,type) \ | |
10939 | __asm__ __volatile__ ( \ | |
10940 | "movw %w2,%0\n\t" \ | |
10941 | "movw %w1,2+%0\n\t" \ | |
10942 | "rorl $16,%1\n\t" \ | |
10943 | "movb %b1,4+%0\n\t" \ | |
10944 | "movb %4,5+%0\n\t" \ | |
10945 | "movb $0,6+%0\n\t" \ | |
10946 | "movb %h1,7+%0\n\t" \ | |
10947 | "rorl $16,%1" \ | |
10948 | : "=o"(*(n)) : "q" (addr), "ri"(limit), "i"(type)) | |
10949 | ||
10950 | This works great except that the output assembler ends | |
10951 | up looking a bit weird if it turns out that there is | |
10952 | no offset. You end up producing code that looks like: | |
10953 | ||
10954 | #APP | |
10955 | movw $235,(%eax) | |
10956 | movw %dx,2+(%eax) | |
10957 | rorl $16,%edx | |
10958 | movb %dl,4+(%eax) | |
10959 | movb $137,5+(%eax) | |
10960 | movb $0,6+(%eax) | |
10961 | movb %dh,7+(%eax) | |
10962 | rorl $16,%edx | |
10963 | #NO_APP | |
10964 | ||
47926f60 | 10965 | So here we provide the missing zero. */ |
24eab124 AM |
10966 | |
10967 | *displacement_string_end = '0'; | |
252b5132 RH |
10968 | } |
10969 | #endif | |
d258b828 | 10970 | gotfree_input_line = lex_got (&i.reloc[this_operand], NULL, &types); |
f3c180ae AM |
10971 | if (gotfree_input_line) |
10972 | input_line_pointer = gotfree_input_line; | |
252b5132 | 10973 | |
24eab124 | 10974 | exp_seg = expression (exp); |
252b5132 | 10975 | |
636c26b0 AM |
10976 | SKIP_WHITESPACE (); |
10977 | if (*input_line_pointer) | |
10978 | as_bad (_("junk `%s' after expression"), input_line_pointer); | |
10979 | #if GCC_ASM_O_HACK | |
10980 | RESTORE_END_STRING (disp_end + 1); | |
10981 | #endif | |
636c26b0 | 10982 | input_line_pointer = save_input_line_pointer; |
636c26b0 | 10983 | if (gotfree_input_line) |
ee86248c JB |
10984 | { |
10985 | free (gotfree_input_line); | |
10986 | ||
10987 | if (exp->X_op == O_constant || exp->X_op == O_register) | |
10988 | exp->X_op = O_illegal; | |
10989 | } | |
10990 | ||
10991 | ret = i386_finalize_displacement (exp_seg, exp, types, disp_start); | |
10992 | ||
10993 | RESTORE_END_STRING (disp_end); | |
10994 | ||
10995 | return ret; | |
10996 | } | |
10997 | ||
10998 | static int | |
10999 | i386_finalize_displacement (segT exp_seg ATTRIBUTE_UNUSED, expressionS *exp, | |
11000 | i386_operand_type types, const char *disp_start) | |
11001 | { | |
ee86248c | 11002 | int ret = 1; |
636c26b0 | 11003 | |
24eab124 AM |
11004 | /* We do this to make sure that the section symbol is in |
11005 | the symbol table. We will ultimately change the relocation | |
47926f60 | 11006 | to be relative to the beginning of the section. */ |
1ae12ab7 | 11007 | if (i.reloc[this_operand] == BFD_RELOC_386_GOTOFF |
d6ab8113 JB |
11008 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL |
11009 | || i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) | |
24eab124 | 11010 | { |
636c26b0 | 11011 | if (exp->X_op != O_symbol) |
3992d3b7 | 11012 | goto inv_disp; |
636c26b0 | 11013 | |
e5cb08ac | 11014 | if (S_IS_LOCAL (exp->X_add_symbol) |
c64efb4b L |
11015 | && S_GET_SEGMENT (exp->X_add_symbol) != undefined_section |
11016 | && S_GET_SEGMENT (exp->X_add_symbol) != expr_section) | |
24eab124 | 11017 | section_symbol (S_GET_SEGMENT (exp->X_add_symbol)); |
24eab124 AM |
11018 | exp->X_op = O_subtract; |
11019 | exp->X_op_symbol = GOT_symbol; | |
1ae12ab7 | 11020 | if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTPCREL) |
29b0f896 | 11021 | i.reloc[this_operand] = BFD_RELOC_32_PCREL; |
d6ab8113 JB |
11022 | else if (i.reloc[this_operand] == BFD_RELOC_X86_64_GOTOFF64) |
11023 | i.reloc[this_operand] = BFD_RELOC_64; | |
23df1078 | 11024 | else |
29b0f896 | 11025 | i.reloc[this_operand] = BFD_RELOC_32; |
24eab124 | 11026 | } |
252b5132 | 11027 | |
3992d3b7 AM |
11028 | else if (exp->X_op == O_absent |
11029 | || exp->X_op == O_illegal | |
ee86248c | 11030 | || exp->X_op == O_big) |
2daf4fd8 | 11031 | { |
3992d3b7 AM |
11032 | inv_disp: |
11033 | as_bad (_("missing or invalid displacement expression `%s'"), | |
2daf4fd8 | 11034 | disp_start); |
3992d3b7 | 11035 | ret = 0; |
2daf4fd8 AM |
11036 | } |
11037 | ||
a50187b2 JB |
11038 | else if (exp->X_op == O_constant) |
11039 | { | |
11040 | /* Sizing gets taken care of by optimize_disp(). | |
11041 | ||
11042 | If not 64bit, sign/zero extend val, to account for wraparound | |
11043 | when !BFD64. */ | |
11044 | if (flag_code != CODE_64BIT) | |
11045 | exp->X_add_number = extend_to_32bit_address (exp->X_add_number); | |
11046 | } | |
11047 | ||
4c63da97 | 11048 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
a50187b2 | 11049 | else if (OUTPUT_FLAVOR == bfd_target_aout_flavour |
3992d3b7 AM |
11050 | && exp_seg != absolute_section |
11051 | && exp_seg != text_section | |
11052 | && exp_seg != data_section | |
11053 | && exp_seg != bss_section | |
11054 | && exp_seg != undefined_section | |
11055 | && !bfd_is_com_section (exp_seg)) | |
24eab124 | 11056 | { |
d0b47220 | 11057 | as_bad (_("unimplemented segment %s in operand"), exp_seg->name); |
3992d3b7 | 11058 | ret = 0; |
24eab124 | 11059 | } |
252b5132 | 11060 | #endif |
3956db08 | 11061 | |
a50187b2 | 11062 | else if (current_templates->start->opcode_modifier.jump == JUMP_BYTE) |
48bcea9f JB |
11063 | i.types[this_operand].bitfield.disp8 = 1; |
11064 | ||
40fb9820 | 11065 | /* Check if this is a displacement only operand. */ |
02b83698 JB |
11066 | if (!i.types[this_operand].bitfield.baseindex) |
11067 | i.types[this_operand] = | |
11068 | operand_type_or (operand_type_and_not (i.types[this_operand], anydisp), | |
11069 | operand_type_and (i.types[this_operand], types)); | |
3956db08 | 11070 | |
3992d3b7 | 11071 | return ret; |
252b5132 RH |
11072 | } |
11073 | ||
2abc2bec JB |
11074 | /* Return the active addressing mode, taking address override and |
11075 | registers forming the address into consideration. Update the | |
11076 | address override prefix if necessary. */ | |
47926f60 | 11077 | |
2abc2bec JB |
11078 | static enum flag_code |
11079 | i386_addressing_mode (void) | |
252b5132 | 11080 | { |
be05d201 L |
11081 | enum flag_code addr_mode; |
11082 | ||
11083 | if (i.prefix[ADDR_PREFIX]) | |
11084 | addr_mode = flag_code == CODE_32BIT ? CODE_16BIT : CODE_32BIT; | |
a23b33b3 JB |
11085 | else if (flag_code == CODE_16BIT |
11086 | && current_templates->start->cpu_flags.bitfield.cpumpx | |
11087 | /* Avoid replacing the "16-bit addressing not allowed" diagnostic | |
11088 | from md_assemble() by "is not a valid base/index expression" | |
11089 | when there is a base and/or index. */ | |
11090 | && !i.types[this_operand].bitfield.baseindex) | |
11091 | { | |
11092 | /* MPX insn memory operands with neither base nor index must be forced | |
11093 | to use 32-bit addressing in 16-bit mode. */ | |
11094 | addr_mode = CODE_32BIT; | |
11095 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
11096 | ++i.prefixes; | |
11097 | gas_assert (!i.types[this_operand].bitfield.disp16); | |
11098 | gas_assert (!i.types[this_operand].bitfield.disp32); | |
11099 | } | |
be05d201 L |
11100 | else |
11101 | { | |
11102 | addr_mode = flag_code; | |
11103 | ||
24eab124 | 11104 | #if INFER_ADDR_PREFIX |
be05d201 L |
11105 | if (i.mem_operands == 0) |
11106 | { | |
11107 | /* Infer address prefix from the first memory operand. */ | |
11108 | const reg_entry *addr_reg = i.base_reg; | |
11109 | ||
11110 | if (addr_reg == NULL) | |
11111 | addr_reg = i.index_reg; | |
eecb386c | 11112 | |
be05d201 L |
11113 | if (addr_reg) |
11114 | { | |
e968fc9b | 11115 | if (addr_reg->reg_type.bitfield.dword) |
be05d201 L |
11116 | addr_mode = CODE_32BIT; |
11117 | else if (flag_code != CODE_64BIT | |
dc821c5f | 11118 | && addr_reg->reg_type.bitfield.word) |
be05d201 L |
11119 | addr_mode = CODE_16BIT; |
11120 | ||
11121 | if (addr_mode != flag_code) | |
11122 | { | |
11123 | i.prefix[ADDR_PREFIX] = ADDR_PREFIX_OPCODE; | |
11124 | i.prefixes += 1; | |
11125 | /* Change the size of any displacement too. At most one | |
11126 | of Disp16 or Disp32 is set. | |
11127 | FIXME. There doesn't seem to be any real need for | |
11128 | separate Disp16 and Disp32 flags. The same goes for | |
11129 | Imm16 and Imm32. Removing them would probably clean | |
11130 | up the code quite a lot. */ | |
11131 | if (flag_code != CODE_64BIT | |
11132 | && (i.types[this_operand].bitfield.disp16 | |
11133 | || i.types[this_operand].bitfield.disp32)) | |
11134 | i.types[this_operand] | |
11135 | = operand_type_xor (i.types[this_operand], disp16_32); | |
11136 | } | |
11137 | } | |
11138 | } | |
24eab124 | 11139 | #endif |
be05d201 L |
11140 | } |
11141 | ||
2abc2bec JB |
11142 | return addr_mode; |
11143 | } | |
11144 | ||
11145 | /* Make sure the memory operand we've been dealt is valid. | |
11146 | Return 1 on success, 0 on a failure. */ | |
11147 | ||
11148 | static int | |
11149 | i386_index_check (const char *operand_string) | |
11150 | { | |
11151 | const char *kind = "base/index"; | |
11152 | enum flag_code addr_mode = i386_addressing_mode (); | |
a152332d | 11153 | const insn_template *t = current_templates->start; |
2abc2bec | 11154 | |
a152332d JB |
11155 | if (t->opcode_modifier.isstring |
11156 | && !t->cpu_flags.bitfield.cpupadlock | |
fc0763e6 JB |
11157 | && (current_templates->end[-1].opcode_modifier.isstring |
11158 | || i.mem_operands)) | |
11159 | { | |
11160 | /* Memory operands of string insns are special in that they only allow | |
11161 | a single register (rDI, rSI, or rBX) as their memory address. */ | |
be05d201 L |
11162 | const reg_entry *expected_reg; |
11163 | static const char *di_si[][2] = | |
11164 | { | |
11165 | { "esi", "edi" }, | |
11166 | { "si", "di" }, | |
11167 | { "rsi", "rdi" } | |
11168 | }; | |
11169 | static const char *bx[] = { "ebx", "bx", "rbx" }; | |
fc0763e6 JB |
11170 | |
11171 | kind = "string address"; | |
11172 | ||
a152332d | 11173 | if (t->opcode_modifier.prefixok == PrefixRep) |
fc0763e6 | 11174 | { |
51c8edf6 JB |
11175 | int es_op = current_templates->end[-1].opcode_modifier.isstring |
11176 | - IS_STRING_ES_OP0; | |
11177 | int op = 0; | |
fc0763e6 | 11178 | |
51c8edf6 | 11179 | if (!current_templates->end[-1].operand_types[0].bitfield.baseindex |
fc0763e6 JB |
11180 | || ((!i.mem_operands != !intel_syntax) |
11181 | && current_templates->end[-1].operand_types[1] | |
11182 | .bitfield.baseindex)) | |
51c8edf6 | 11183 | op = 1; |
fe0e921f AM |
11184 | expected_reg |
11185 | = (const reg_entry *) str_hash_find (reg_hash, | |
11186 | di_si[addr_mode][op == es_op]); | |
fc0763e6 JB |
11187 | } |
11188 | else | |
fe0e921f AM |
11189 | expected_reg |
11190 | = (const reg_entry *)str_hash_find (reg_hash, bx[addr_mode]); | |
fc0763e6 | 11191 | |
be05d201 L |
11192 | if (i.base_reg != expected_reg |
11193 | || i.index_reg | |
fc0763e6 | 11194 | || operand_type_check (i.types[this_operand], disp)) |
fc0763e6 | 11195 | { |
be05d201 L |
11196 | /* The second memory operand must have the same size as |
11197 | the first one. */ | |
11198 | if (i.mem_operands | |
11199 | && i.base_reg | |
11200 | && !((addr_mode == CODE_64BIT | |
dc821c5f | 11201 | && i.base_reg->reg_type.bitfield.qword) |
be05d201 | 11202 | || (addr_mode == CODE_32BIT |
dc821c5f JB |
11203 | ? i.base_reg->reg_type.bitfield.dword |
11204 | : i.base_reg->reg_type.bitfield.word))) | |
be05d201 L |
11205 | goto bad_address; |
11206 | ||
fc0763e6 JB |
11207 | as_warn (_("`%s' is not valid here (expected `%c%s%s%c')"), |
11208 | operand_string, | |
11209 | intel_syntax ? '[' : '(', | |
11210 | register_prefix, | |
be05d201 | 11211 | expected_reg->reg_name, |
fc0763e6 | 11212 | intel_syntax ? ']' : ')'); |
be05d201 | 11213 | return 1; |
fc0763e6 | 11214 | } |
be05d201 L |
11215 | else |
11216 | return 1; | |
11217 | ||
dc1e8a47 | 11218 | bad_address: |
be05d201 L |
11219 | as_bad (_("`%s' is not a valid %s expression"), |
11220 | operand_string, kind); | |
11221 | return 0; | |
3e73aa7c JH |
11222 | } |
11223 | else | |
11224 | { | |
be05d201 L |
11225 | if (addr_mode != CODE_16BIT) |
11226 | { | |
11227 | /* 32-bit/64-bit checks. */ | |
41eb8e88 L |
11228 | if (i.disp_encoding == disp_encoding_16bit) |
11229 | { | |
11230 | bad_disp: | |
11231 | as_bad (_("invalid `%s' prefix"), | |
11232 | addr_mode == CODE_16BIT ? "{disp32}" : "{disp16}"); | |
11233 | return 0; | |
11234 | } | |
11235 | ||
be05d201 | 11236 | if ((i.base_reg |
e968fc9b JB |
11237 | && ((addr_mode == CODE_64BIT |
11238 | ? !i.base_reg->reg_type.bitfield.qword | |
11239 | : !i.base_reg->reg_type.bitfield.dword) | |
11240 | || (i.index_reg && i.base_reg->reg_num == RegIP) | |
11241 | || i.base_reg->reg_num == RegIZ)) | |
be05d201 | 11242 | || (i.index_reg |
1b54b8d7 JB |
11243 | && !i.index_reg->reg_type.bitfield.xmmword |
11244 | && !i.index_reg->reg_type.bitfield.ymmword | |
11245 | && !i.index_reg->reg_type.bitfield.zmmword | |
be05d201 | 11246 | && ((addr_mode == CODE_64BIT |
e968fc9b JB |
11247 | ? !i.index_reg->reg_type.bitfield.qword |
11248 | : !i.index_reg->reg_type.bitfield.dword) | |
be05d201 L |
11249 | || !i.index_reg->reg_type.bitfield.baseindex))) |
11250 | goto bad_address; | |
8178be5b | 11251 | |
260cd341 | 11252 | /* bndmk, bndldx, bndstx and mandatory non-vector SIB have special restrictions. */ |
a152332d | 11253 | if ((t->opcode_modifier.opcodeprefix == PREFIX_0XF3 |
389d00a5 JB |
11254 | && t->opcode_modifier.opcodespace == SPACE_0F |
11255 | && t->base_opcode == 0x1b) | |
a152332d | 11256 | || (t->opcode_modifier.opcodeprefix == PREFIX_NONE |
389d00a5 JB |
11257 | && t->opcode_modifier.opcodespace == SPACE_0F |
11258 | && (t->base_opcode & ~1) == 0x1a) | |
a152332d | 11259 | || t->opcode_modifier.sib == SIBMEM) |
8178be5b JB |
11260 | { |
11261 | /* They cannot use RIP-relative addressing. */ | |
e968fc9b | 11262 | if (i.base_reg && i.base_reg->reg_num == RegIP) |
8178be5b JB |
11263 | { |
11264 | as_bad (_("`%s' cannot be used here"), operand_string); | |
11265 | return 0; | |
11266 | } | |
11267 | ||
11268 | /* bndldx and bndstx ignore their scale factor. */ | |
a152332d | 11269 | if (t->opcode_modifier.opcodeprefix == PREFIX_NONE |
389d00a5 JB |
11270 | && t->opcode_modifier.opcodespace == SPACE_0F |
11271 | && (t->base_opcode & ~1) == 0x1a | |
8178be5b JB |
11272 | && i.log2_scale_factor) |
11273 | as_warn (_("register scaling is being ignored here")); | |
11274 | } | |
be05d201 L |
11275 | } |
11276 | else | |
3e73aa7c | 11277 | { |
be05d201 | 11278 | /* 16-bit checks. */ |
41eb8e88 L |
11279 | if (i.disp_encoding == disp_encoding_32bit) |
11280 | goto bad_disp; | |
11281 | ||
3e73aa7c | 11282 | if ((i.base_reg |
dc821c5f | 11283 | && (!i.base_reg->reg_type.bitfield.word |
40fb9820 | 11284 | || !i.base_reg->reg_type.bitfield.baseindex)) |
3e73aa7c | 11285 | || (i.index_reg |
dc821c5f | 11286 | && (!i.index_reg->reg_type.bitfield.word |
40fb9820 | 11287 | || !i.index_reg->reg_type.bitfield.baseindex |
29b0f896 AM |
11288 | || !(i.base_reg |
11289 | && i.base_reg->reg_num < 6 | |
11290 | && i.index_reg->reg_num >= 6 | |
11291 | && i.log2_scale_factor == 0)))) | |
be05d201 | 11292 | goto bad_address; |
3e73aa7c JH |
11293 | } |
11294 | } | |
be05d201 | 11295 | return 1; |
24eab124 | 11296 | } |
252b5132 | 11297 | |
43234a1e L |
11298 | /* Handle vector immediates. */ |
11299 | ||
11300 | static int | |
11301 | RC_SAE_immediate (const char *imm_start) | |
11302 | { | |
43234a1e | 11303 | const char *pstr = imm_start; |
43234a1e L |
11304 | |
11305 | if (*pstr != '{') | |
11306 | return 0; | |
11307 | ||
7063667e JB |
11308 | pstr = RC_SAE_specifier (pstr + 1); |
11309 | if (pstr == NULL) | |
43234a1e L |
11310 | return 0; |
11311 | ||
11312 | if (*pstr++ != '}') | |
11313 | { | |
11314 | as_bad (_("Missing '}': '%s'"), imm_start); | |
11315 | return 0; | |
11316 | } | |
11317 | /* RC/SAE immediate string should contain nothing more. */; | |
11318 | if (*pstr != 0) | |
11319 | { | |
11320 | as_bad (_("Junk after '}': '%s'"), imm_start); | |
11321 | return 0; | |
11322 | } | |
11323 | ||
cf665fee JB |
11324 | /* Internally this doesn't count as an operand. */ |
11325 | --i.operands; | |
43234a1e | 11326 | |
43234a1e L |
11327 | return 1; |
11328 | } | |
11329 | ||
8325cc63 JB |
11330 | /* Only string instructions can have a second memory operand, so |
11331 | reduce current_templates to just those if it contains any. */ | |
11332 | static int | |
11333 | maybe_adjust_templates (void) | |
11334 | { | |
11335 | const insn_template *t; | |
11336 | ||
11337 | gas_assert (i.mem_operands == 1); | |
11338 | ||
11339 | for (t = current_templates->start; t < current_templates->end; ++t) | |
11340 | if (t->opcode_modifier.isstring) | |
11341 | break; | |
11342 | ||
11343 | if (t < current_templates->end) | |
11344 | { | |
11345 | static templates aux_templates; | |
5b7c81bd | 11346 | bool recheck; |
8325cc63 JB |
11347 | |
11348 | aux_templates.start = t; | |
11349 | for (; t < current_templates->end; ++t) | |
11350 | if (!t->opcode_modifier.isstring) | |
11351 | break; | |
11352 | aux_templates.end = t; | |
11353 | ||
11354 | /* Determine whether to re-check the first memory operand. */ | |
11355 | recheck = (aux_templates.start != current_templates->start | |
11356 | || t != current_templates->end); | |
11357 | ||
11358 | current_templates = &aux_templates; | |
11359 | ||
11360 | if (recheck) | |
11361 | { | |
11362 | i.mem_operands = 0; | |
11363 | if (i.memop1_string != NULL | |
11364 | && i386_index_check (i.memop1_string) == 0) | |
11365 | return 0; | |
11366 | i.mem_operands = 1; | |
11367 | } | |
11368 | } | |
11369 | ||
11370 | return 1; | |
11371 | } | |
11372 | ||
9d299bea JB |
11373 | static INLINE bool starts_memory_operand (char c) |
11374 | { | |
014fbcda | 11375 | return ISDIGIT (c) |
9d299bea | 11376 | || is_identifier_char (c) |
014fbcda | 11377 | || strchr ("([\"+-!~", c); |
9d299bea JB |
11378 | } |
11379 | ||
fc0763e6 | 11380 | /* Parse OPERAND_STRING into the i386_insn structure I. Returns zero |
47926f60 | 11381 | on error. */ |
252b5132 | 11382 | |
252b5132 | 11383 | static int |
a7619375 | 11384 | i386_att_operand (char *operand_string) |
252b5132 | 11385 | { |
af6bdddf AM |
11386 | const reg_entry *r; |
11387 | char *end_op; | |
24eab124 | 11388 | char *op_string = operand_string; |
252b5132 | 11389 | |
24eab124 | 11390 | if (is_space_char (*op_string)) |
252b5132 RH |
11391 | ++op_string; |
11392 | ||
24eab124 | 11393 | /* We check for an absolute prefix (differentiating, |
47926f60 | 11394 | for example, 'jmp pc_relative_label' from 'jmp *absolute_label'. */ |
24eab124 AM |
11395 | if (*op_string == ABSOLUTE_PREFIX) |
11396 | { | |
11397 | ++op_string; | |
11398 | if (is_space_char (*op_string)) | |
11399 | ++op_string; | |
5b7c81bd | 11400 | i.jumpabsolute = true; |
24eab124 | 11401 | } |
252b5132 | 11402 | |
47926f60 | 11403 | /* Check if operand is a register. */ |
4d1bb795 | 11404 | if ((r = parse_register (op_string, &end_op)) != NULL) |
24eab124 | 11405 | { |
40fb9820 L |
11406 | i386_operand_type temp; |
11407 | ||
8a6fb3f9 JB |
11408 | if (r == &bad_reg) |
11409 | return 0; | |
11410 | ||
24eab124 AM |
11411 | /* Check for a segment override by searching for ':' after a |
11412 | segment register. */ | |
11413 | op_string = end_op; | |
11414 | if (is_space_char (*op_string)) | |
11415 | ++op_string; | |
00cee14f | 11416 | if (*op_string == ':' && r->reg_type.bitfield.class == SReg) |
24eab124 | 11417 | { |
5e042380 | 11418 | i.seg[i.mem_operands] = r; |
252b5132 | 11419 | |
24eab124 | 11420 | /* Skip the ':' and whitespace. */ |
252b5132 RH |
11421 | ++op_string; |
11422 | if (is_space_char (*op_string)) | |
24eab124 | 11423 | ++op_string; |
252b5132 | 11424 | |
47926f60 | 11425 | /* Handle case of %es:*foo. */ |
c8d541e2 | 11426 | if (!i.jumpabsolute && *op_string == ABSOLUTE_PREFIX) |
24eab124 AM |
11427 | { |
11428 | ++op_string; | |
11429 | if (is_space_char (*op_string)) | |
11430 | ++op_string; | |
5b7c81bd | 11431 | i.jumpabsolute = true; |
24eab124 | 11432 | } |
c8d541e2 | 11433 | |
9d299bea | 11434 | if (!starts_memory_operand (*op_string)) |
c8d541e2 JB |
11435 | { |
11436 | as_bad (_("bad memory operand `%s'"), op_string); | |
11437 | return 0; | |
11438 | } | |
24eab124 AM |
11439 | goto do_memory_reference; |
11440 | } | |
43234a1e L |
11441 | |
11442 | /* Handle vector operations. */ | |
11443 | if (*op_string == '{') | |
11444 | { | |
f70c6814 | 11445 | op_string = check_VecOperations (op_string); |
43234a1e L |
11446 | if (op_string == NULL) |
11447 | return 0; | |
11448 | } | |
11449 | ||
24eab124 AM |
11450 | if (*op_string) |
11451 | { | |
d0b47220 | 11452 | as_bad (_("junk `%s' after register"), op_string); |
24eab124 AM |
11453 | return 0; |
11454 | } | |
40fb9820 L |
11455 | temp = r->reg_type; |
11456 | temp.bitfield.baseindex = 0; | |
c6fb90c8 L |
11457 | i.types[this_operand] = operand_type_or (i.types[this_operand], |
11458 | temp); | |
7d5e4556 | 11459 | i.types[this_operand].bitfield.unspecified = 0; |
520dc8e8 | 11460 | i.op[this_operand].regs = r; |
24eab124 | 11461 | i.reg_operands++; |
cf665fee JB |
11462 | |
11463 | /* A GPR may follow an RC or SAE immediate only if a (vector) register | |
11464 | operand was also present earlier on. */ | |
11465 | if (i.rounding.type != rc_none && temp.bitfield.class == Reg | |
11466 | && i.reg_operands == 1) | |
11467 | { | |
11468 | unsigned int j; | |
11469 | ||
11470 | for (j = 0; j < ARRAY_SIZE (RC_NamesTable); ++j) | |
11471 | if (i.rounding.type == RC_NamesTable[j].type) | |
11472 | break; | |
11473 | as_bad (_("`%s': misplaced `{%s}'"), | |
11474 | current_templates->start->name, RC_NamesTable[j].name); | |
11475 | return 0; | |
11476 | } | |
24eab124 | 11477 | } |
af6bdddf AM |
11478 | else if (*op_string == REGISTER_PREFIX) |
11479 | { | |
11480 | as_bad (_("bad register name `%s'"), op_string); | |
11481 | return 0; | |
11482 | } | |
24eab124 | 11483 | else if (*op_string == IMMEDIATE_PREFIX) |
ce8a8b2f | 11484 | { |
24eab124 | 11485 | ++op_string; |
6f2f06be | 11486 | if (i.jumpabsolute) |
24eab124 | 11487 | { |
d0b47220 | 11488 | as_bad (_("immediate operand illegal with absolute jump")); |
24eab124 AM |
11489 | return 0; |
11490 | } | |
11491 | if (!i386_immediate (op_string)) | |
11492 | return 0; | |
cf665fee JB |
11493 | if (i.rounding.type != rc_none) |
11494 | { | |
11495 | as_bad (_("`%s': RC/SAE operand must follow immediate operands"), | |
11496 | current_templates->start->name); | |
11497 | return 0; | |
11498 | } | |
24eab124 | 11499 | } |
43234a1e L |
11500 | else if (RC_SAE_immediate (operand_string)) |
11501 | { | |
cf665fee JB |
11502 | /* If it is a RC or SAE immediate, do the necessary placement check: |
11503 | Only another immediate or a GPR may precede it. */ | |
11504 | if (i.mem_operands || i.reg_operands + i.imm_operands > 1 | |
11505 | || (i.reg_operands == 1 | |
11506 | && i.op[0].regs->reg_type.bitfield.class != Reg)) | |
11507 | { | |
11508 | as_bad (_("`%s': misplaced `%s'"), | |
11509 | current_templates->start->name, operand_string); | |
11510 | return 0; | |
11511 | } | |
43234a1e | 11512 | } |
9d299bea | 11513 | else if (starts_memory_operand (*op_string)) |
24eab124 | 11514 | { |
47926f60 | 11515 | /* This is a memory reference of some sort. */ |
af6bdddf | 11516 | char *base_string; |
252b5132 | 11517 | |
47926f60 | 11518 | /* Start and end of displacement string expression (if found). */ |
eecb386c AM |
11519 | char *displacement_string_start; |
11520 | char *displacement_string_end; | |
252b5132 | 11521 | |
24eab124 | 11522 | do_memory_reference: |
8325cc63 JB |
11523 | if (i.mem_operands == 1 && !maybe_adjust_templates ()) |
11524 | return 0; | |
24eab124 | 11525 | if ((i.mem_operands == 1 |
40fb9820 | 11526 | && !current_templates->start->opcode_modifier.isstring) |
24eab124 AM |
11527 | || i.mem_operands == 2) |
11528 | { | |
11529 | as_bad (_("too many memory references for `%s'"), | |
11530 | current_templates->start->name); | |
11531 | return 0; | |
11532 | } | |
252b5132 | 11533 | |
24eab124 AM |
11534 | /* Check for base index form. We detect the base index form by |
11535 | looking for an ')' at the end of the operand, searching | |
11536 | for the '(' matching it, and finding a REGISTER_PREFIX or ',' | |
11537 | after the '('. */ | |
af6bdddf | 11538 | base_string = op_string + strlen (op_string); |
c3332e24 | 11539 | |
43234a1e | 11540 | /* Handle vector operations. */ |
6b5ba0d4 JB |
11541 | --base_string; |
11542 | if (is_space_char (*base_string)) | |
11543 | --base_string; | |
11544 | ||
11545 | if (*base_string == '}') | |
43234a1e | 11546 | { |
6b5ba0d4 JB |
11547 | char *vop_start = NULL; |
11548 | ||
11549 | while (base_string-- > op_string) | |
11550 | { | |
11551 | if (*base_string == '"') | |
11552 | break; | |
11553 | if (*base_string != '{') | |
11554 | continue; | |
11555 | ||
11556 | vop_start = base_string; | |
11557 | ||
11558 | --base_string; | |
11559 | if (is_space_char (*base_string)) | |
11560 | --base_string; | |
11561 | ||
11562 | if (*base_string != '}') | |
11563 | break; | |
11564 | ||
11565 | vop_start = NULL; | |
11566 | } | |
11567 | ||
11568 | if (!vop_start) | |
11569 | { | |
11570 | as_bad (_("unbalanced figure braces")); | |
11571 | return 0; | |
11572 | } | |
11573 | ||
f70c6814 | 11574 | if (check_VecOperations (vop_start) == NULL) |
43234a1e | 11575 | return 0; |
43234a1e L |
11576 | } |
11577 | ||
47926f60 | 11578 | /* If we only have a displacement, set-up for it to be parsed later. */ |
af6bdddf AM |
11579 | displacement_string_start = op_string; |
11580 | displacement_string_end = base_string + 1; | |
252b5132 | 11581 | |
24eab124 AM |
11582 | if (*base_string == ')') |
11583 | { | |
af6bdddf | 11584 | char *temp_string; |
e87fb6a6 JB |
11585 | unsigned int parens_not_balanced = 0; |
11586 | bool in_quotes = false; | |
e68c3d59 | 11587 | |
24eab124 | 11588 | /* We've already checked that the number of left & right ()'s are |
e87fb6a6 JB |
11589 | equal, and that there's a matching set of double quotes. */ |
11590 | end_op = base_string; | |
11591 | for (temp_string = op_string; temp_string < end_op; temp_string++) | |
24eab124 | 11592 | { |
e87fb6a6 JB |
11593 | if (*temp_string == '\\' && temp_string[1] == '"') |
11594 | ++temp_string; | |
11595 | else if (*temp_string == '"') | |
11596 | in_quotes = !in_quotes; | |
11597 | else if (!in_quotes) | |
11598 | { | |
11599 | if (*temp_string == '(' && !parens_not_balanced++) | |
11600 | base_string = temp_string; | |
11601 | if (*temp_string == ')') | |
11602 | --parens_not_balanced; | |
11603 | } | |
24eab124 | 11604 | } |
c3332e24 | 11605 | |
af6bdddf | 11606 | temp_string = base_string; |
c3332e24 | 11607 | |
24eab124 | 11608 | /* Skip past '(' and whitespace. */ |
e87fb6a6 JB |
11609 | gas_assert (*base_string == '('); |
11610 | ++base_string; | |
252b5132 | 11611 | if (is_space_char (*base_string)) |
24eab124 | 11612 | ++base_string; |
252b5132 | 11613 | |
af6bdddf | 11614 | if (*base_string == ',' |
4eed87de AM |
11615 | || ((i.base_reg = parse_register (base_string, &end_op)) |
11616 | != NULL)) | |
252b5132 | 11617 | { |
af6bdddf | 11618 | displacement_string_end = temp_string; |
252b5132 | 11619 | |
40fb9820 | 11620 | i.types[this_operand].bitfield.baseindex = 1; |
252b5132 | 11621 | |
af6bdddf | 11622 | if (i.base_reg) |
24eab124 | 11623 | { |
8a6fb3f9 JB |
11624 | if (i.base_reg == &bad_reg) |
11625 | return 0; | |
24eab124 AM |
11626 | base_string = end_op; |
11627 | if (is_space_char (*base_string)) | |
11628 | ++base_string; | |
af6bdddf AM |
11629 | } |
11630 | ||
11631 | /* There may be an index reg or scale factor here. */ | |
11632 | if (*base_string == ',') | |
11633 | { | |
11634 | ++base_string; | |
11635 | if (is_space_char (*base_string)) | |
11636 | ++base_string; | |
11637 | ||
4eed87de AM |
11638 | if ((i.index_reg = parse_register (base_string, &end_op)) |
11639 | != NULL) | |
24eab124 | 11640 | { |
8a6fb3f9 JB |
11641 | if (i.index_reg == &bad_reg) |
11642 | return 0; | |
af6bdddf | 11643 | base_string = end_op; |
24eab124 AM |
11644 | if (is_space_char (*base_string)) |
11645 | ++base_string; | |
af6bdddf AM |
11646 | if (*base_string == ',') |
11647 | { | |
11648 | ++base_string; | |
11649 | if (is_space_char (*base_string)) | |
11650 | ++base_string; | |
11651 | } | |
e5cb08ac | 11652 | else if (*base_string != ')') |
af6bdddf | 11653 | { |
4eed87de AM |
11654 | as_bad (_("expecting `,' or `)' " |
11655 | "after index register in `%s'"), | |
af6bdddf AM |
11656 | operand_string); |
11657 | return 0; | |
11658 | } | |
24eab124 | 11659 | } |
af6bdddf | 11660 | else if (*base_string == REGISTER_PREFIX) |
24eab124 | 11661 | { |
f76bf5e0 L |
11662 | end_op = strchr (base_string, ','); |
11663 | if (end_op) | |
11664 | *end_op = '\0'; | |
af6bdddf | 11665 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 AM |
11666 | return 0; |
11667 | } | |
252b5132 | 11668 | |
47926f60 | 11669 | /* Check for scale factor. */ |
551c1ca1 | 11670 | if (*base_string != ')') |
af6bdddf | 11671 | { |
551c1ca1 AM |
11672 | char *end_scale = i386_scale (base_string); |
11673 | ||
11674 | if (!end_scale) | |
af6bdddf | 11675 | return 0; |
24eab124 | 11676 | |
551c1ca1 | 11677 | base_string = end_scale; |
af6bdddf AM |
11678 | if (is_space_char (*base_string)) |
11679 | ++base_string; | |
11680 | if (*base_string != ')') | |
11681 | { | |
4eed87de AM |
11682 | as_bad (_("expecting `)' " |
11683 | "after scale factor in `%s'"), | |
af6bdddf AM |
11684 | operand_string); |
11685 | return 0; | |
11686 | } | |
11687 | } | |
11688 | else if (!i.index_reg) | |
24eab124 | 11689 | { |
4eed87de AM |
11690 | as_bad (_("expecting index register or scale factor " |
11691 | "after `,'; got '%c'"), | |
af6bdddf | 11692 | *base_string); |
24eab124 AM |
11693 | return 0; |
11694 | } | |
11695 | } | |
af6bdddf | 11696 | else if (*base_string != ')') |
24eab124 | 11697 | { |
4eed87de AM |
11698 | as_bad (_("expecting `,' or `)' " |
11699 | "after base register in `%s'"), | |
af6bdddf | 11700 | operand_string); |
24eab124 AM |
11701 | return 0; |
11702 | } | |
c3332e24 | 11703 | } |
af6bdddf | 11704 | else if (*base_string == REGISTER_PREFIX) |
c3332e24 | 11705 | { |
f76bf5e0 L |
11706 | end_op = strchr (base_string, ','); |
11707 | if (end_op) | |
11708 | *end_op = '\0'; | |
af6bdddf | 11709 | as_bad (_("bad register name `%s'"), base_string); |
24eab124 | 11710 | return 0; |
c3332e24 | 11711 | } |
24eab124 AM |
11712 | } |
11713 | ||
11714 | /* If there's an expression beginning the operand, parse it, | |
11715 | assuming displacement_string_start and | |
11716 | displacement_string_end are meaningful. */ | |
11717 | if (displacement_string_start != displacement_string_end) | |
11718 | { | |
11719 | if (!i386_displacement (displacement_string_start, | |
11720 | displacement_string_end)) | |
11721 | return 0; | |
11722 | } | |
11723 | ||
11724 | /* Special case for (%dx) while doing input/output op. */ | |
11725 | if (i.base_reg | |
75e5731b JB |
11726 | && i.base_reg->reg_type.bitfield.instance == RegD |
11727 | && i.base_reg->reg_type.bitfield.word | |
24eab124 AM |
11728 | && i.index_reg == 0 |
11729 | && i.log2_scale_factor == 0 | |
11730 | && i.seg[i.mem_operands] == 0 | |
40fb9820 | 11731 | && !operand_type_check (i.types[this_operand], disp)) |
24eab124 | 11732 | { |
2fb5be8d | 11733 | i.types[this_operand] = i.base_reg->reg_type; |
24eab124 AM |
11734 | return 1; |
11735 | } | |
11736 | ||
eecb386c AM |
11737 | if (i386_index_check (operand_string) == 0) |
11738 | return 0; | |
c48dadc9 | 11739 | i.flags[this_operand] |= Operand_Mem; |
8325cc63 JB |
11740 | if (i.mem_operands == 0) |
11741 | i.memop1_string = xstrdup (operand_string); | |
24eab124 AM |
11742 | i.mem_operands++; |
11743 | } | |
11744 | else | |
ce8a8b2f AM |
11745 | { |
11746 | /* It's not a memory operand; argh! */ | |
24eab124 AM |
11747 | as_bad (_("invalid char %s beginning operand %d `%s'"), |
11748 | output_invalid (*op_string), | |
11749 | this_operand + 1, | |
11750 | op_string); | |
11751 | return 0; | |
11752 | } | |
47926f60 | 11753 | return 1; /* Normal return. */ |
252b5132 RH |
11754 | } |
11755 | \f | |
fa94de6b RM |
11756 | /* Calculate the maximum variable size (i.e., excluding fr_fix) |
11757 | that an rs_machine_dependent frag may reach. */ | |
11758 | ||
11759 | unsigned int | |
11760 | i386_frag_max_var (fragS *frag) | |
11761 | { | |
11762 | /* The only relaxable frags are for jumps. | |
11763 | Unconditional jumps can grow by 4 bytes and others by 5 bytes. */ | |
11764 | gas_assert (frag->fr_type == rs_machine_dependent); | |
11765 | return TYPE_FROM_RELAX_STATE (frag->fr_subtype) == UNCOND_JUMP ? 4 : 5; | |
11766 | } | |
11767 | ||
b084df0b L |
11768 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
11769 | static int | |
8dcea932 | 11770 | elf_symbol_resolved_in_segment_p (symbolS *fr_symbol, offsetT fr_var) |
b084df0b L |
11771 | { |
11772 | /* STT_GNU_IFUNC symbol must go through PLT. */ | |
11773 | if ((symbol_get_bfdsym (fr_symbol)->flags | |
11774 | & BSF_GNU_INDIRECT_FUNCTION) != 0) | |
11775 | return 0; | |
11776 | ||
11777 | if (!S_IS_EXTERNAL (fr_symbol)) | |
11778 | /* Symbol may be weak or local. */ | |
11779 | return !S_IS_WEAK (fr_symbol); | |
11780 | ||
8dcea932 L |
11781 | /* Global symbols with non-default visibility can't be preempted. */ |
11782 | if (ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT) | |
11783 | return 1; | |
11784 | ||
11785 | if (fr_var != NO_RELOC) | |
11786 | switch ((enum bfd_reloc_code_real) fr_var) | |
11787 | { | |
11788 | case BFD_RELOC_386_PLT32: | |
11789 | case BFD_RELOC_X86_64_PLT32: | |
33eaf5de | 11790 | /* Symbol with PLT relocation may be preempted. */ |
8dcea932 L |
11791 | return 0; |
11792 | default: | |
11793 | abort (); | |
11794 | } | |
11795 | ||
b084df0b L |
11796 | /* Global symbols with default visibility in a shared library may be |
11797 | preempted by another definition. */ | |
8dcea932 | 11798 | return !shared; |
b084df0b L |
11799 | } |
11800 | #endif | |
11801 | ||
79d72f45 HL |
11802 | /* Table 3-2. Macro-Fusible Instructions in Haswell Microarchitecture |
11803 | Note also work for Skylake and Cascadelake. | |
11804 | --------------------------------------------------------------------- | |
11805 | | JCC | ADD/SUB/CMP | INC/DEC | TEST/AND | | |
11806 | | ------ | ----------- | ------- | -------- | | |
11807 | | Jo | N | N | Y | | |
11808 | | Jno | N | N | Y | | |
11809 | | Jc/Jb | Y | N | Y | | |
11810 | | Jae/Jnb | Y | N | Y | | |
11811 | | Je/Jz | Y | Y | Y | | |
11812 | | Jne/Jnz | Y | Y | Y | | |
11813 | | Jna/Jbe | Y | N | Y | | |
11814 | | Ja/Jnbe | Y | N | Y | | |
11815 | | Js | N | N | Y | | |
11816 | | Jns | N | N | Y | | |
11817 | | Jp/Jpe | N | N | Y | | |
11818 | | Jnp/Jpo | N | N | Y | | |
11819 | | Jl/Jnge | Y | Y | Y | | |
11820 | | Jge/Jnl | Y | Y | Y | | |
11821 | | Jle/Jng | Y | Y | Y | | |
11822 | | Jg/Jnle | Y | Y | Y | | |
11823 | --------------------------------------------------------------------- */ | |
11824 | static int | |
11825 | i386_macro_fusible_p (enum mf_cmp_kind mf_cmp, enum mf_jcc_kind mf_jcc) | |
11826 | { | |
11827 | if (mf_cmp == mf_cmp_alu_cmp) | |
11828 | return ((mf_jcc >= mf_jcc_jc && mf_jcc <= mf_jcc_jna) | |
11829 | || mf_jcc == mf_jcc_jl || mf_jcc == mf_jcc_jle); | |
11830 | if (mf_cmp == mf_cmp_incdec) | |
11831 | return (mf_jcc == mf_jcc_je || mf_jcc == mf_jcc_jl | |
11832 | || mf_jcc == mf_jcc_jle); | |
11833 | if (mf_cmp == mf_cmp_test_and) | |
11834 | return 1; | |
11835 | return 0; | |
11836 | } | |
11837 | ||
e379e5f3 L |
11838 | /* Return the next non-empty frag. */ |
11839 | ||
11840 | static fragS * | |
11841 | i386_next_non_empty_frag (fragS *fragP) | |
11842 | { | |
11843 | /* There may be a frag with a ".fill 0" when there is no room in | |
11844 | the current frag for frag_grow in output_insn. */ | |
11845 | for (fragP = fragP->fr_next; | |
11846 | (fragP != NULL | |
11847 | && fragP->fr_type == rs_fill | |
11848 | && fragP->fr_fix == 0); | |
11849 | fragP = fragP->fr_next) | |
11850 | ; | |
11851 | return fragP; | |
11852 | } | |
11853 | ||
11854 | /* Return the next jcc frag after BRANCH_PADDING. */ | |
11855 | ||
11856 | static fragS * | |
79d72f45 | 11857 | i386_next_fusible_jcc_frag (fragS *maybe_cmp_fragP, fragS *pad_fragP) |
e379e5f3 | 11858 | { |
79d72f45 HL |
11859 | fragS *branch_fragP; |
11860 | if (!pad_fragP) | |
e379e5f3 L |
11861 | return NULL; |
11862 | ||
79d72f45 HL |
11863 | if (pad_fragP->fr_type == rs_machine_dependent |
11864 | && (TYPE_FROM_RELAX_STATE (pad_fragP->fr_subtype) | |
e379e5f3 L |
11865 | == BRANCH_PADDING)) |
11866 | { | |
79d72f45 HL |
11867 | branch_fragP = i386_next_non_empty_frag (pad_fragP); |
11868 | if (branch_fragP->fr_type != rs_machine_dependent) | |
e379e5f3 | 11869 | return NULL; |
79d72f45 HL |
11870 | if (TYPE_FROM_RELAX_STATE (branch_fragP->fr_subtype) == COND_JUMP |
11871 | && i386_macro_fusible_p (maybe_cmp_fragP->tc_frag_data.mf_type, | |
11872 | pad_fragP->tc_frag_data.mf_type)) | |
11873 | return branch_fragP; | |
e379e5f3 L |
11874 | } |
11875 | ||
11876 | return NULL; | |
11877 | } | |
11878 | ||
11879 | /* Classify BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags. */ | |
11880 | ||
11881 | static void | |
11882 | i386_classify_machine_dependent_frag (fragS *fragP) | |
11883 | { | |
11884 | fragS *cmp_fragP; | |
11885 | fragS *pad_fragP; | |
11886 | fragS *branch_fragP; | |
11887 | fragS *next_fragP; | |
11888 | unsigned int max_prefix_length; | |
11889 | ||
11890 | if (fragP->tc_frag_data.classified) | |
11891 | return; | |
11892 | ||
11893 | /* First scan for BRANCH_PADDING and FUSED_JCC_PADDING. Convert | |
11894 | FUSED_JCC_PADDING and merge BRANCH_PADDING. */ | |
11895 | for (next_fragP = fragP; | |
11896 | next_fragP != NULL; | |
11897 | next_fragP = next_fragP->fr_next) | |
11898 | { | |
11899 | next_fragP->tc_frag_data.classified = 1; | |
11900 | if (next_fragP->fr_type == rs_machine_dependent) | |
11901 | switch (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype)) | |
11902 | { | |
11903 | case BRANCH_PADDING: | |
11904 | /* The BRANCH_PADDING frag must be followed by a branch | |
11905 | frag. */ | |
11906 | branch_fragP = i386_next_non_empty_frag (next_fragP); | |
11907 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
11908 | break; | |
11909 | case FUSED_JCC_PADDING: | |
11910 | /* Check if this is a fused jcc: | |
11911 | FUSED_JCC_PADDING | |
11912 | CMP like instruction | |
11913 | BRANCH_PADDING | |
11914 | COND_JUMP | |
11915 | */ | |
11916 | cmp_fragP = i386_next_non_empty_frag (next_fragP); | |
11917 | pad_fragP = i386_next_non_empty_frag (cmp_fragP); | |
79d72f45 | 11918 | branch_fragP = i386_next_fusible_jcc_frag (next_fragP, pad_fragP); |
e379e5f3 L |
11919 | if (branch_fragP) |
11920 | { | |
11921 | /* The BRANCH_PADDING frag is merged with the | |
11922 | FUSED_JCC_PADDING frag. */ | |
11923 | next_fragP->tc_frag_data.u.branch_fragP = branch_fragP; | |
11924 | /* CMP like instruction size. */ | |
11925 | next_fragP->tc_frag_data.cmp_size = cmp_fragP->fr_fix; | |
11926 | frag_wane (pad_fragP); | |
11927 | /* Skip to branch_fragP. */ | |
11928 | next_fragP = branch_fragP; | |
11929 | } | |
11930 | else if (next_fragP->tc_frag_data.max_prefix_length) | |
11931 | { | |
11932 | /* Turn FUSED_JCC_PADDING into BRANCH_PREFIX if it isn't | |
11933 | a fused jcc. */ | |
11934 | next_fragP->fr_subtype | |
11935 | = ENCODE_RELAX_STATE (BRANCH_PREFIX, 0); | |
11936 | next_fragP->tc_frag_data.max_bytes | |
11937 | = next_fragP->tc_frag_data.max_prefix_length; | |
11938 | /* This will be updated in the BRANCH_PREFIX scan. */ | |
11939 | next_fragP->tc_frag_data.max_prefix_length = 0; | |
11940 | } | |
11941 | else | |
11942 | frag_wane (next_fragP); | |
11943 | break; | |
11944 | } | |
11945 | } | |
11946 | ||
11947 | /* Stop if there is no BRANCH_PREFIX. */ | |
11948 | if (!align_branch_prefix_size) | |
11949 | return; | |
11950 | ||
11951 | /* Scan for BRANCH_PREFIX. */ | |
11952 | for (; fragP != NULL; fragP = fragP->fr_next) | |
11953 | { | |
11954 | if (fragP->fr_type != rs_machine_dependent | |
11955 | || (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
11956 | != BRANCH_PREFIX)) | |
11957 | continue; | |
11958 | ||
11959 | /* Count all BRANCH_PREFIX frags before BRANCH_PADDING and | |
11960 | COND_JUMP_PREFIX. */ | |
11961 | max_prefix_length = 0; | |
11962 | for (next_fragP = fragP; | |
11963 | next_fragP != NULL; | |
11964 | next_fragP = next_fragP->fr_next) | |
11965 | { | |
11966 | if (next_fragP->fr_type == rs_fill) | |
11967 | /* Skip rs_fill frags. */ | |
11968 | continue; | |
11969 | else if (next_fragP->fr_type != rs_machine_dependent) | |
11970 | /* Stop for all other frags. */ | |
11971 | break; | |
11972 | ||
11973 | /* rs_machine_dependent frags. */ | |
11974 | if (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11975 | == BRANCH_PREFIX) | |
11976 | { | |
11977 | /* Count BRANCH_PREFIX frags. */ | |
11978 | if (max_prefix_length >= MAX_FUSED_JCC_PADDING_SIZE) | |
11979 | { | |
11980 | max_prefix_length = MAX_FUSED_JCC_PADDING_SIZE; | |
11981 | frag_wane (next_fragP); | |
11982 | } | |
11983 | else | |
11984 | max_prefix_length | |
11985 | += next_fragP->tc_frag_data.max_bytes; | |
11986 | } | |
11987 | else if ((TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11988 | == BRANCH_PADDING) | |
11989 | || (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
11990 | == FUSED_JCC_PADDING)) | |
11991 | { | |
11992 | /* Stop at BRANCH_PADDING and FUSED_JCC_PADDING. */ | |
11993 | fragP->tc_frag_data.u.padding_fragP = next_fragP; | |
11994 | break; | |
11995 | } | |
11996 | else | |
11997 | /* Stop for other rs_machine_dependent frags. */ | |
11998 | break; | |
11999 | } | |
12000 | ||
12001 | fragP->tc_frag_data.max_prefix_length = max_prefix_length; | |
12002 | ||
12003 | /* Skip to the next frag. */ | |
12004 | fragP = next_fragP; | |
12005 | } | |
12006 | } | |
12007 | ||
12008 | /* Compute padding size for | |
12009 | ||
12010 | FUSED_JCC_PADDING | |
12011 | CMP like instruction | |
12012 | BRANCH_PADDING | |
12013 | COND_JUMP/UNCOND_JUMP | |
12014 | ||
12015 | or | |
12016 | ||
12017 | BRANCH_PADDING | |
12018 | COND_JUMP/UNCOND_JUMP | |
12019 | */ | |
12020 | ||
12021 | static int | |
12022 | i386_branch_padding_size (fragS *fragP, offsetT address) | |
12023 | { | |
12024 | unsigned int offset, size, padding_size; | |
12025 | fragS *branch_fragP = fragP->tc_frag_data.u.branch_fragP; | |
12026 | ||
12027 | /* The start address of the BRANCH_PADDING or FUSED_JCC_PADDING frag. */ | |
12028 | if (!address) | |
12029 | address = fragP->fr_address; | |
12030 | address += fragP->fr_fix; | |
12031 | ||
12032 | /* CMP like instrunction size. */ | |
12033 | size = fragP->tc_frag_data.cmp_size; | |
12034 | ||
12035 | /* The base size of the branch frag. */ | |
12036 | size += branch_fragP->fr_fix; | |
12037 | ||
12038 | /* Add opcode and displacement bytes for the rs_machine_dependent | |
12039 | branch frag. */ | |
12040 | if (branch_fragP->fr_type == rs_machine_dependent) | |
12041 | size += md_relax_table[branch_fragP->fr_subtype].rlx_length; | |
12042 | ||
12043 | /* Check if branch is within boundary and doesn't end at the last | |
12044 | byte. */ | |
12045 | offset = address & ((1U << align_branch_power) - 1); | |
12046 | if ((offset + size) >= (1U << align_branch_power)) | |
12047 | /* Padding needed to avoid crossing boundary. */ | |
12048 | padding_size = (1U << align_branch_power) - offset; | |
12049 | else | |
12050 | /* No padding needed. */ | |
12051 | padding_size = 0; | |
12052 | ||
12053 | /* The return value may be saved in tc_frag_data.length which is | |
12054 | unsigned byte. */ | |
12055 | if (!fits_in_unsigned_byte (padding_size)) | |
12056 | abort (); | |
12057 | ||
12058 | return padding_size; | |
12059 | } | |
12060 | ||
12061 | /* i386_generic_table_relax_frag() | |
12062 | ||
12063 | Handle BRANCH_PADDING, BRANCH_PREFIX and FUSED_JCC_PADDING frags to | |
12064 | grow/shrink padding to align branch frags. Hand others to | |
12065 | relax_frag(). */ | |
12066 | ||
12067 | long | |
12068 | i386_generic_table_relax_frag (segT segment, fragS *fragP, long stretch) | |
12069 | { | |
12070 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING | |
12071 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
12072 | { | |
12073 | long padding_size = i386_branch_padding_size (fragP, 0); | |
12074 | long grow = padding_size - fragP->tc_frag_data.length; | |
12075 | ||
12076 | /* When the BRANCH_PREFIX frag is used, the computed address | |
12077 | must match the actual address and there should be no padding. */ | |
12078 | if (fragP->tc_frag_data.padding_address | |
12079 | && (fragP->tc_frag_data.padding_address != fragP->fr_address | |
12080 | || padding_size)) | |
12081 | abort (); | |
12082 | ||
12083 | /* Update the padding size. */ | |
12084 | if (grow) | |
12085 | fragP->tc_frag_data.length = padding_size; | |
12086 | ||
12087 | return grow; | |
12088 | } | |
12089 | else if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12090 | { | |
12091 | fragS *padding_fragP, *next_fragP; | |
12092 | long padding_size, left_size, last_size; | |
12093 | ||
12094 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
12095 | if (!padding_fragP) | |
12096 | /* Use the padding set by the leading BRANCH_PREFIX frag. */ | |
12097 | return (fragP->tc_frag_data.length | |
12098 | - fragP->tc_frag_data.last_length); | |
12099 | ||
12100 | /* Compute the relative address of the padding frag in the very | |
12101 | first time where the BRANCH_PREFIX frag sizes are zero. */ | |
12102 | if (!fragP->tc_frag_data.padding_address) | |
12103 | fragP->tc_frag_data.padding_address | |
12104 | = padding_fragP->fr_address - (fragP->fr_address - stretch); | |
12105 | ||
12106 | /* First update the last length from the previous interation. */ | |
12107 | left_size = fragP->tc_frag_data.prefix_length; | |
12108 | for (next_fragP = fragP; | |
12109 | next_fragP != padding_fragP; | |
12110 | next_fragP = next_fragP->fr_next) | |
12111 | if (next_fragP->fr_type == rs_machine_dependent | |
12112 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12113 | == BRANCH_PREFIX)) | |
12114 | { | |
12115 | if (left_size) | |
12116 | { | |
12117 | int max = next_fragP->tc_frag_data.max_bytes; | |
12118 | if (max) | |
12119 | { | |
12120 | int size; | |
12121 | if (max > left_size) | |
12122 | size = left_size; | |
12123 | else | |
12124 | size = max; | |
12125 | left_size -= size; | |
12126 | next_fragP->tc_frag_data.last_length = size; | |
12127 | } | |
12128 | } | |
12129 | else | |
12130 | next_fragP->tc_frag_data.last_length = 0; | |
12131 | } | |
12132 | ||
12133 | /* Check the padding size for the padding frag. */ | |
12134 | padding_size = i386_branch_padding_size | |
12135 | (padding_fragP, (fragP->fr_address | |
12136 | + fragP->tc_frag_data.padding_address)); | |
12137 | ||
12138 | last_size = fragP->tc_frag_data.prefix_length; | |
12139 | /* Check if there is change from the last interation. */ | |
12140 | if (padding_size == last_size) | |
12141 | { | |
12142 | /* Update the expected address of the padding frag. */ | |
12143 | padding_fragP->tc_frag_data.padding_address | |
12144 | = (fragP->fr_address + padding_size | |
12145 | + fragP->tc_frag_data.padding_address); | |
12146 | return 0; | |
12147 | } | |
12148 | ||
12149 | if (padding_size > fragP->tc_frag_data.max_prefix_length) | |
12150 | { | |
12151 | /* No padding if there is no sufficient room. Clear the | |
12152 | expected address of the padding frag. */ | |
12153 | padding_fragP->tc_frag_data.padding_address = 0; | |
12154 | padding_size = 0; | |
12155 | } | |
12156 | else | |
12157 | /* Store the expected address of the padding frag. */ | |
12158 | padding_fragP->tc_frag_data.padding_address | |
12159 | = (fragP->fr_address + padding_size | |
12160 | + fragP->tc_frag_data.padding_address); | |
12161 | ||
12162 | fragP->tc_frag_data.prefix_length = padding_size; | |
12163 | ||
12164 | /* Update the length for the current interation. */ | |
12165 | left_size = padding_size; | |
12166 | for (next_fragP = fragP; | |
12167 | next_fragP != padding_fragP; | |
12168 | next_fragP = next_fragP->fr_next) | |
12169 | if (next_fragP->fr_type == rs_machine_dependent | |
12170 | && (TYPE_FROM_RELAX_STATE (next_fragP->fr_subtype) | |
12171 | == BRANCH_PREFIX)) | |
12172 | { | |
12173 | if (left_size) | |
12174 | { | |
12175 | int max = next_fragP->tc_frag_data.max_bytes; | |
12176 | if (max) | |
12177 | { | |
12178 | int size; | |
12179 | if (max > left_size) | |
12180 | size = left_size; | |
12181 | else | |
12182 | size = max; | |
12183 | left_size -= size; | |
12184 | next_fragP->tc_frag_data.length = size; | |
12185 | } | |
12186 | } | |
12187 | else | |
12188 | next_fragP->tc_frag_data.length = 0; | |
12189 | } | |
12190 | ||
12191 | return (fragP->tc_frag_data.length | |
12192 | - fragP->tc_frag_data.last_length); | |
12193 | } | |
12194 | return relax_frag (segment, fragP, stretch); | |
12195 | } | |
12196 | ||
ee7fcc42 AM |
12197 | /* md_estimate_size_before_relax() |
12198 | ||
12199 | Called just before relax() for rs_machine_dependent frags. The x86 | |
12200 | assembler uses these frags to handle variable size jump | |
12201 | instructions. | |
12202 | ||
12203 | Any symbol that is now undefined will not become defined. | |
12204 | Return the correct fr_subtype in the frag. | |
12205 | Return the initial "guess for variable size of frag" to caller. | |
12206 | The guess is actually the growth beyond the fixed part. Whatever | |
12207 | we do to grow the fixed or variable part contributes to our | |
12208 | returned value. */ | |
12209 | ||
252b5132 | 12210 | int |
7016a5d5 | 12211 | md_estimate_size_before_relax (fragS *fragP, segT segment) |
252b5132 | 12212 | { |
e379e5f3 L |
12213 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
12214 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX | |
12215 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING) | |
12216 | { | |
12217 | i386_classify_machine_dependent_frag (fragP); | |
12218 | return fragP->tc_frag_data.length; | |
12219 | } | |
12220 | ||
252b5132 | 12221 | /* We've already got fragP->fr_subtype right; all we have to do is |
b98ef147 AM |
12222 | check for un-relaxable symbols. On an ELF system, we can't relax |
12223 | an externally visible symbol, because it may be overridden by a | |
12224 | shared library. */ | |
12225 | if (S_GET_SEGMENT (fragP->fr_symbol) != segment | |
6d249963 | 12226 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 12227 | || (IS_ELF |
8dcea932 L |
12228 | && !elf_symbol_resolved_in_segment_p (fragP->fr_symbol, |
12229 | fragP->fr_var)) | |
fbeb56a4 DK |
12230 | #endif |
12231 | #if defined (OBJ_COFF) && defined (TE_PE) | |
7ab9ffdd | 12232 | || (OUTPUT_FLAVOR == bfd_target_coff_flavour |
fbeb56a4 | 12233 | && S_IS_WEAK (fragP->fr_symbol)) |
b98ef147 AM |
12234 | #endif |
12235 | ) | |
252b5132 | 12236 | { |
b98ef147 AM |
12237 | /* Symbol is undefined in this segment, or we need to keep a |
12238 | reloc so that weak symbols can be overridden. */ | |
12239 | int size = (fragP->fr_subtype & CODE16) ? 2 : 4; | |
f86103b7 | 12240 | enum bfd_reloc_code_real reloc_type; |
ee7fcc42 AM |
12241 | unsigned char *opcode; |
12242 | int old_fr_fix; | |
eb19308f | 12243 | fixS *fixP = NULL; |
f6af82bd | 12244 | |
ee7fcc42 | 12245 | if (fragP->fr_var != NO_RELOC) |
1e9cc1c2 | 12246 | reloc_type = (enum bfd_reloc_code_real) fragP->fr_var; |
b98ef147 | 12247 | else if (size == 2) |
f6af82bd | 12248 | reloc_type = BFD_RELOC_16_PCREL; |
bd7ab16b | 12249 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
1ef3994a JB |
12250 | else if (fragP->tc_frag_data.code64 && fragP->fr_offset == 0 |
12251 | && need_plt32_p (fragP->fr_symbol)) | |
bd7ab16b L |
12252 | reloc_type = BFD_RELOC_X86_64_PLT32; |
12253 | #endif | |
f6af82bd AM |
12254 | else |
12255 | reloc_type = BFD_RELOC_32_PCREL; | |
252b5132 | 12256 | |
ee7fcc42 AM |
12257 | old_fr_fix = fragP->fr_fix; |
12258 | opcode = (unsigned char *) fragP->fr_opcode; | |
12259 | ||
fddf5b5b | 12260 | switch (TYPE_FROM_RELAX_STATE (fragP->fr_subtype)) |
252b5132 | 12261 | { |
fddf5b5b AM |
12262 | case UNCOND_JUMP: |
12263 | /* Make jmp (0xeb) a (d)word displacement jump. */ | |
47926f60 | 12264 | opcode[0] = 0xe9; |
252b5132 | 12265 | fragP->fr_fix += size; |
eb19308f JB |
12266 | fixP = fix_new (fragP, old_fr_fix, size, |
12267 | fragP->fr_symbol, | |
12268 | fragP->fr_offset, 1, | |
12269 | reloc_type); | |
252b5132 RH |
12270 | break; |
12271 | ||
fddf5b5b | 12272 | case COND_JUMP86: |
412167cb AM |
12273 | if (size == 2 |
12274 | && (!no_cond_jump_promotion || fragP->fr_var != NO_RELOC)) | |
fddf5b5b AM |
12275 | { |
12276 | /* Negate the condition, and branch past an | |
12277 | unconditional jump. */ | |
12278 | opcode[0] ^= 1; | |
12279 | opcode[1] = 3; | |
12280 | /* Insert an unconditional jump. */ | |
12281 | opcode[2] = 0xe9; | |
12282 | /* We added two extra opcode bytes, and have a two byte | |
12283 | offset. */ | |
12284 | fragP->fr_fix += 2 + 2; | |
062cd5e7 AS |
12285 | fix_new (fragP, old_fr_fix + 2, 2, |
12286 | fragP->fr_symbol, | |
12287 | fragP->fr_offset, 1, | |
12288 | reloc_type); | |
fddf5b5b AM |
12289 | break; |
12290 | } | |
12291 | /* Fall through. */ | |
12292 | ||
12293 | case COND_JUMP: | |
412167cb AM |
12294 | if (no_cond_jump_promotion && fragP->fr_var == NO_RELOC) |
12295 | { | |
12296 | fragP->fr_fix += 1; | |
3e02c1cc AM |
12297 | fixP = fix_new (fragP, old_fr_fix, 1, |
12298 | fragP->fr_symbol, | |
12299 | fragP->fr_offset, 1, | |
12300 | BFD_RELOC_8_PCREL); | |
12301 | fixP->fx_signed = 1; | |
412167cb AM |
12302 | break; |
12303 | } | |
93c2a809 | 12304 | |
24eab124 | 12305 | /* This changes the byte-displacement jump 0x7N |
fddf5b5b | 12306 | to the (d)word-displacement jump 0x0f,0x8N. */ |
252b5132 | 12307 | opcode[1] = opcode[0] + 0x10; |
f6af82bd | 12308 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; |
47926f60 KH |
12309 | /* We've added an opcode byte. */ |
12310 | fragP->fr_fix += 1 + size; | |
eb19308f JB |
12311 | fixP = fix_new (fragP, old_fr_fix + 1, size, |
12312 | fragP->fr_symbol, | |
12313 | fragP->fr_offset, 1, | |
12314 | reloc_type); | |
252b5132 | 12315 | break; |
fddf5b5b AM |
12316 | |
12317 | default: | |
12318 | BAD_CASE (fragP->fr_subtype); | |
12319 | break; | |
252b5132 | 12320 | } |
eb19308f JB |
12321 | |
12322 | /* All jumps handled here are signed, but don't unconditionally use a | |
12323 | signed limit check for 32 and 16 bit jumps as we want to allow wrap | |
12324 | around at 4G (outside of 64-bit mode) and 64k. */ | |
12325 | if (size == 4 && flag_code == CODE_64BIT) | |
12326 | fixP->fx_signed = 1; | |
12327 | ||
252b5132 | 12328 | frag_wane (fragP); |
ee7fcc42 | 12329 | return fragP->fr_fix - old_fr_fix; |
252b5132 | 12330 | } |
93c2a809 | 12331 | |
93c2a809 AM |
12332 | /* Guess size depending on current relax state. Initially the relax |
12333 | state will correspond to a short jump and we return 1, because | |
12334 | the variable part of the frag (the branch offset) is one byte | |
12335 | long. However, we can relax a section more than once and in that | |
12336 | case we must either set fr_subtype back to the unrelaxed state, | |
12337 | or return the value for the appropriate branch. */ | |
12338 | return md_relax_table[fragP->fr_subtype].rlx_length; | |
ee7fcc42 AM |
12339 | } |
12340 | ||
47926f60 KH |
12341 | /* Called after relax() is finished. |
12342 | ||
12343 | In: Address of frag. | |
12344 | fr_type == rs_machine_dependent. | |
12345 | fr_subtype is what the address relaxed to. | |
12346 | ||
12347 | Out: Any fixSs and constants are set up. | |
12348 | Caller will turn frag into a ".space 0". */ | |
12349 | ||
252b5132 | 12350 | void |
7016a5d5 TG |
12351 | md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED, segT sec ATTRIBUTE_UNUSED, |
12352 | fragS *fragP) | |
252b5132 | 12353 | { |
29b0f896 | 12354 | unsigned char *opcode; |
252b5132 | 12355 | unsigned char *where_to_put_displacement = NULL; |
847f7ad4 AM |
12356 | offsetT target_address; |
12357 | offsetT opcode_address; | |
252b5132 | 12358 | unsigned int extension = 0; |
847f7ad4 | 12359 | offsetT displacement_from_opcode_start; |
252b5132 | 12360 | |
e379e5f3 L |
12361 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PADDING |
12362 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == FUSED_JCC_PADDING | |
12363 | || TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12364 | { | |
12365 | /* Generate nop padding. */ | |
12366 | unsigned int size = fragP->tc_frag_data.length; | |
12367 | if (size) | |
12368 | { | |
12369 | if (size > fragP->tc_frag_data.max_bytes) | |
12370 | abort (); | |
12371 | ||
12372 | if (flag_debug) | |
12373 | { | |
12374 | const char *msg; | |
12375 | const char *branch = "branch"; | |
12376 | const char *prefix = ""; | |
12377 | fragS *padding_fragP; | |
12378 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) | |
12379 | == BRANCH_PREFIX) | |
12380 | { | |
12381 | padding_fragP = fragP->tc_frag_data.u.padding_fragP; | |
12382 | switch (fragP->tc_frag_data.default_prefix) | |
12383 | { | |
12384 | default: | |
12385 | abort (); | |
12386 | break; | |
12387 | case CS_PREFIX_OPCODE: | |
12388 | prefix = " cs"; | |
12389 | break; | |
12390 | case DS_PREFIX_OPCODE: | |
12391 | prefix = " ds"; | |
12392 | break; | |
12393 | case ES_PREFIX_OPCODE: | |
12394 | prefix = " es"; | |
12395 | break; | |
12396 | case FS_PREFIX_OPCODE: | |
12397 | prefix = " fs"; | |
12398 | break; | |
12399 | case GS_PREFIX_OPCODE: | |
12400 | prefix = " gs"; | |
12401 | break; | |
12402 | case SS_PREFIX_OPCODE: | |
12403 | prefix = " ss"; | |
12404 | break; | |
12405 | } | |
12406 | if (padding_fragP) | |
12407 | msg = _("%s:%u: add %d%s at 0x%llx to align " | |
12408 | "%s within %d-byte boundary\n"); | |
12409 | else | |
12410 | msg = _("%s:%u: add additional %d%s at 0x%llx to " | |
12411 | "align %s within %d-byte boundary\n"); | |
12412 | } | |
12413 | else | |
12414 | { | |
12415 | padding_fragP = fragP; | |
12416 | msg = _("%s:%u: add %d%s-byte nop at 0x%llx to align " | |
12417 | "%s within %d-byte boundary\n"); | |
12418 | } | |
12419 | ||
12420 | if (padding_fragP) | |
12421 | switch (padding_fragP->tc_frag_data.branch_type) | |
12422 | { | |
12423 | case align_branch_jcc: | |
12424 | branch = "jcc"; | |
12425 | break; | |
12426 | case align_branch_fused: | |
12427 | branch = "fused jcc"; | |
12428 | break; | |
12429 | case align_branch_jmp: | |
12430 | branch = "jmp"; | |
12431 | break; | |
12432 | case align_branch_call: | |
12433 | branch = "call"; | |
12434 | break; | |
12435 | case align_branch_indirect: | |
12436 | branch = "indiret branch"; | |
12437 | break; | |
12438 | case align_branch_ret: | |
12439 | branch = "ret"; | |
12440 | break; | |
12441 | default: | |
12442 | break; | |
12443 | } | |
12444 | ||
12445 | fprintf (stdout, msg, | |
12446 | fragP->fr_file, fragP->fr_line, size, prefix, | |
12447 | (long long) fragP->fr_address, branch, | |
12448 | 1 << align_branch_power); | |
12449 | } | |
12450 | if (TYPE_FROM_RELAX_STATE (fragP->fr_subtype) == BRANCH_PREFIX) | |
12451 | memset (fragP->fr_opcode, | |
12452 | fragP->tc_frag_data.default_prefix, size); | |
12453 | else | |
12454 | i386_generate_nops (fragP, (char *) fragP->fr_opcode, | |
12455 | size, 0); | |
12456 | fragP->fr_fix += size; | |
12457 | } | |
12458 | return; | |
12459 | } | |
12460 | ||
252b5132 RH |
12461 | opcode = (unsigned char *) fragP->fr_opcode; |
12462 | ||
47926f60 | 12463 | /* Address we want to reach in file space. */ |
252b5132 | 12464 | target_address = S_GET_VALUE (fragP->fr_symbol) + fragP->fr_offset; |
252b5132 | 12465 | |
47926f60 | 12466 | /* Address opcode resides at in file space. */ |
252b5132 RH |
12467 | opcode_address = fragP->fr_address + fragP->fr_fix; |
12468 | ||
47926f60 | 12469 | /* Displacement from opcode start to fill into instruction. */ |
252b5132 RH |
12470 | displacement_from_opcode_start = target_address - opcode_address; |
12471 | ||
fddf5b5b | 12472 | if ((fragP->fr_subtype & BIG) == 0) |
252b5132 | 12473 | { |
47926f60 KH |
12474 | /* Don't have to change opcode. */ |
12475 | extension = 1; /* 1 opcode + 1 displacement */ | |
252b5132 | 12476 | where_to_put_displacement = &opcode[1]; |
fddf5b5b AM |
12477 | } |
12478 | else | |
12479 | { | |
12480 | if (no_cond_jump_promotion | |
12481 | && TYPE_FROM_RELAX_STATE (fragP->fr_subtype) != UNCOND_JUMP) | |
4eed87de AM |
12482 | as_warn_where (fragP->fr_file, fragP->fr_line, |
12483 | _("long jump required")); | |
252b5132 | 12484 | |
fddf5b5b AM |
12485 | switch (fragP->fr_subtype) |
12486 | { | |
12487 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG): | |
12488 | extension = 4; /* 1 opcode + 4 displacement */ | |
12489 | opcode[0] = 0xe9; | |
12490 | where_to_put_displacement = &opcode[1]; | |
12491 | break; | |
252b5132 | 12492 | |
fddf5b5b AM |
12493 | case ENCODE_RELAX_STATE (UNCOND_JUMP, BIG16): |
12494 | extension = 2; /* 1 opcode + 2 displacement */ | |
12495 | opcode[0] = 0xe9; | |
12496 | where_to_put_displacement = &opcode[1]; | |
12497 | break; | |
252b5132 | 12498 | |
fddf5b5b AM |
12499 | case ENCODE_RELAX_STATE (COND_JUMP, BIG): |
12500 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG): | |
12501 | extension = 5; /* 2 opcode + 4 displacement */ | |
12502 | opcode[1] = opcode[0] + 0x10; | |
12503 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12504 | where_to_put_displacement = &opcode[2]; | |
12505 | break; | |
252b5132 | 12506 | |
fddf5b5b AM |
12507 | case ENCODE_RELAX_STATE (COND_JUMP, BIG16): |
12508 | extension = 3; /* 2 opcode + 2 displacement */ | |
12509 | opcode[1] = opcode[0] + 0x10; | |
12510 | opcode[0] = TWO_BYTE_OPCODE_ESCAPE; | |
12511 | where_to_put_displacement = &opcode[2]; | |
12512 | break; | |
252b5132 | 12513 | |
fddf5b5b AM |
12514 | case ENCODE_RELAX_STATE (COND_JUMP86, BIG16): |
12515 | extension = 4; | |
12516 | opcode[0] ^= 1; | |
12517 | opcode[1] = 3; | |
12518 | opcode[2] = 0xe9; | |
12519 | where_to_put_displacement = &opcode[3]; | |
12520 | break; | |
12521 | ||
12522 | default: | |
12523 | BAD_CASE (fragP->fr_subtype); | |
12524 | break; | |
12525 | } | |
252b5132 | 12526 | } |
fddf5b5b | 12527 | |
7b81dfbb AJ |
12528 | /* If size if less then four we are sure that the operand fits, |
12529 | but if it's 4, then it could be that the displacement is larger | |
12530 | then -/+ 2GB. */ | |
12531 | if (DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype) == 4 | |
12532 | && object_64bit | |
12533 | && ((addressT) (displacement_from_opcode_start - extension | |
4eed87de AM |
12534 | + ((addressT) 1 << 31)) |
12535 | > (((addressT) 2 << 31) - 1))) | |
7b81dfbb AJ |
12536 | { |
12537 | as_bad_where (fragP->fr_file, fragP->fr_line, | |
12538 | _("jump target out of range")); | |
12539 | /* Make us emit 0. */ | |
12540 | displacement_from_opcode_start = extension; | |
12541 | } | |
47926f60 | 12542 | /* Now put displacement after opcode. */ |
252b5132 RH |
12543 | md_number_to_chars ((char *) where_to_put_displacement, |
12544 | (valueT) (displacement_from_opcode_start - extension), | |
fddf5b5b | 12545 | DISP_SIZE_FROM_RELAX_STATE (fragP->fr_subtype)); |
252b5132 RH |
12546 | fragP->fr_fix += extension; |
12547 | } | |
12548 | \f | |
7016a5d5 | 12549 | /* Apply a fixup (fixP) to segment data, once it has been determined |
252b5132 RH |
12550 | by our caller that we have all the info we need to fix it up. |
12551 | ||
7016a5d5 TG |
12552 | Parameter valP is the pointer to the value of the bits. |
12553 | ||
252b5132 RH |
12554 | On the 386, immediates, displacements, and data pointers are all in |
12555 | the same (little-endian) format, so we don't need to care about which | |
12556 | we are handling. */ | |
12557 | ||
94f592af | 12558 | void |
7016a5d5 | 12559 | md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED) |
252b5132 | 12560 | { |
94f592af | 12561 | char *p = fixP->fx_where + fixP->fx_frag->fr_literal; |
c6682705 | 12562 | valueT value = *valP; |
252b5132 | 12563 | |
f86103b7 | 12564 | #if !defined (TE_Mach) |
93382f6d AM |
12565 | if (fixP->fx_pcrel) |
12566 | { | |
12567 | switch (fixP->fx_r_type) | |
12568 | { | |
5865bb77 ILT |
12569 | default: |
12570 | break; | |
12571 | ||
d6ab8113 JB |
12572 | case BFD_RELOC_64: |
12573 | fixP->fx_r_type = BFD_RELOC_64_PCREL; | |
12574 | break; | |
93382f6d | 12575 | case BFD_RELOC_32: |
ae8887b5 | 12576 | case BFD_RELOC_X86_64_32S: |
93382f6d AM |
12577 | fixP->fx_r_type = BFD_RELOC_32_PCREL; |
12578 | break; | |
12579 | case BFD_RELOC_16: | |
12580 | fixP->fx_r_type = BFD_RELOC_16_PCREL; | |
12581 | break; | |
12582 | case BFD_RELOC_8: | |
12583 | fixP->fx_r_type = BFD_RELOC_8_PCREL; | |
12584 | break; | |
12585 | } | |
12586 | } | |
252b5132 | 12587 | |
a161fe53 | 12588 | if (fixP->fx_addsy != NULL |
31312f95 | 12589 | && (fixP->fx_r_type == BFD_RELOC_32_PCREL |
d6ab8113 | 12590 | || fixP->fx_r_type == BFD_RELOC_64_PCREL |
31312f95 | 12591 | || fixP->fx_r_type == BFD_RELOC_16_PCREL |
d258b828 | 12592 | || fixP->fx_r_type == BFD_RELOC_8_PCREL) |
31312f95 | 12593 | && !use_rela_relocations) |
252b5132 | 12594 | { |
31312f95 AM |
12595 | /* This is a hack. There should be a better way to handle this. |
12596 | This covers for the fact that bfd_install_relocation will | |
12597 | subtract the current location (for partial_inplace, PC relative | |
12598 | relocations); see more below. */ | |
252b5132 | 12599 | #ifndef OBJ_AOUT |
718ddfc0 | 12600 | if (IS_ELF |
252b5132 RH |
12601 | #ifdef TE_PE |
12602 | || OUTPUT_FLAVOR == bfd_target_coff_flavour | |
12603 | #endif | |
12604 | ) | |
12605 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12606 | #endif | |
12607 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
718ddfc0 | 12608 | if (IS_ELF) |
252b5132 | 12609 | { |
6539b54b | 12610 | segT sym_seg = S_GET_SEGMENT (fixP->fx_addsy); |
2f66722d | 12611 | |
6539b54b | 12612 | if ((sym_seg == seg |
2f66722d | 12613 | || (symbol_section_p (fixP->fx_addsy) |
6539b54b | 12614 | && sym_seg != absolute_section)) |
af65af87 | 12615 | && !generic_force_reloc (fixP)) |
2f66722d AM |
12616 | { |
12617 | /* Yes, we add the values in twice. This is because | |
6539b54b AM |
12618 | bfd_install_relocation subtracts them out again. I think |
12619 | bfd_install_relocation is broken, but I don't dare change | |
2f66722d AM |
12620 | it. FIXME. */ |
12621 | value += fixP->fx_where + fixP->fx_frag->fr_address; | |
12622 | } | |
252b5132 RH |
12623 | } |
12624 | #endif | |
12625 | #if defined (OBJ_COFF) && defined (TE_PE) | |
977cdf5a NC |
12626 | /* For some reason, the PE format does not store a |
12627 | section address offset for a PC relative symbol. */ | |
12628 | if (S_GET_SEGMENT (fixP->fx_addsy) != seg | |
7be1c489 | 12629 | || S_IS_WEAK (fixP->fx_addsy)) |
252b5132 RH |
12630 | value += md_pcrel_from (fixP); |
12631 | #endif | |
12632 | } | |
fbeb56a4 | 12633 | #if defined (OBJ_COFF) && defined (TE_PE) |
f01c1a09 NC |
12634 | if (fixP->fx_addsy != NULL |
12635 | && S_IS_WEAK (fixP->fx_addsy) | |
12636 | /* PR 16858: Do not modify weak function references. */ | |
12637 | && ! fixP->fx_pcrel) | |
fbeb56a4 | 12638 | { |
296a8689 NC |
12639 | #if !defined (TE_PEP) |
12640 | /* For x86 PE weak function symbols are neither PC-relative | |
12641 | nor do they set S_IS_FUNCTION. So the only reliable way | |
12642 | to detect them is to check the flags of their containing | |
12643 | section. */ | |
12644 | if (S_GET_SEGMENT (fixP->fx_addsy) != NULL | |
12645 | && S_GET_SEGMENT (fixP->fx_addsy)->flags & SEC_CODE) | |
12646 | ; | |
12647 | else | |
12648 | #endif | |
fbeb56a4 DK |
12649 | value -= S_GET_VALUE (fixP->fx_addsy); |
12650 | } | |
12651 | #endif | |
252b5132 RH |
12652 | |
12653 | /* Fix a few things - the dynamic linker expects certain values here, | |
0234cb7c | 12654 | and we must not disappoint it. */ |
252b5132 | 12655 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
718ddfc0 | 12656 | if (IS_ELF && fixP->fx_addsy) |
47926f60 KH |
12657 | switch (fixP->fx_r_type) |
12658 | { | |
12659 | case BFD_RELOC_386_PLT32: | |
3e73aa7c | 12660 | case BFD_RELOC_X86_64_PLT32: |
b9519cfe L |
12661 | /* Make the jump instruction point to the address of the operand. |
12662 | At runtime we merely add the offset to the actual PLT entry. | |
12663 | NB: Subtract the offset size only for jump instructions. */ | |
12664 | if (fixP->fx_pcrel) | |
12665 | value = -4; | |
47926f60 | 12666 | break; |
31312f95 | 12667 | |
13ae64f3 JJ |
12668 | case BFD_RELOC_386_TLS_GD: |
12669 | case BFD_RELOC_386_TLS_LDM: | |
13ae64f3 | 12670 | case BFD_RELOC_386_TLS_IE_32: |
37e55690 JJ |
12671 | case BFD_RELOC_386_TLS_IE: |
12672 | case BFD_RELOC_386_TLS_GOTIE: | |
67a4f2b7 | 12673 | case BFD_RELOC_386_TLS_GOTDESC: |
bffbf940 JJ |
12674 | case BFD_RELOC_X86_64_TLSGD: |
12675 | case BFD_RELOC_X86_64_TLSLD: | |
12676 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 | 12677 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
00f7efb6 JJ |
12678 | value = 0; /* Fully resolved at runtime. No addend. */ |
12679 | /* Fallthrough */ | |
12680 | case BFD_RELOC_386_TLS_LE: | |
12681 | case BFD_RELOC_386_TLS_LDO_32: | |
12682 | case BFD_RELOC_386_TLS_LE_32: | |
12683 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 12684 | case BFD_RELOC_X86_64_DTPOFF64: |
00f7efb6 | 12685 | case BFD_RELOC_X86_64_TPOFF32: |
d6ab8113 | 12686 | case BFD_RELOC_X86_64_TPOFF64: |
00f7efb6 JJ |
12687 | S_SET_THREAD_LOCAL (fixP->fx_addsy); |
12688 | break; | |
12689 | ||
67a4f2b7 AO |
12690 | case BFD_RELOC_386_TLS_DESC_CALL: |
12691 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
12692 | value = 0; /* Fully resolved at runtime. No addend. */ | |
12693 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
12694 | fixP->fx_done = 0; | |
12695 | return; | |
12696 | ||
47926f60 KH |
12697 | case BFD_RELOC_VTABLE_INHERIT: |
12698 | case BFD_RELOC_VTABLE_ENTRY: | |
12699 | fixP->fx_done = 0; | |
94f592af | 12700 | return; |
47926f60 KH |
12701 | |
12702 | default: | |
12703 | break; | |
12704 | } | |
12705 | #endif /* defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) */ | |
a442cac5 JB |
12706 | |
12707 | /* If not 64bit, massage value, to account for wraparound when !BFD64. */ | |
12708 | if (!object_64bit) | |
12709 | value = extend_to_32bit_address (value); | |
12710 | ||
c6682705 | 12711 | *valP = value; |
f86103b7 | 12712 | #endif /* !defined (TE_Mach) */ |
3e73aa7c | 12713 | |
3e73aa7c | 12714 | /* Are we finished with this relocation now? */ |
c6682705 | 12715 | if (fixP->fx_addsy == NULL) |
b8188555 JB |
12716 | { |
12717 | fixP->fx_done = 1; | |
12718 | switch (fixP->fx_r_type) | |
12719 | { | |
12720 | case BFD_RELOC_X86_64_32S: | |
12721 | fixP->fx_signed = 1; | |
12722 | break; | |
12723 | ||
12724 | default: | |
12725 | break; | |
12726 | } | |
12727 | } | |
fbeb56a4 DK |
12728 | #if defined (OBJ_COFF) && defined (TE_PE) |
12729 | else if (fixP->fx_addsy != NULL && S_IS_WEAK (fixP->fx_addsy)) | |
12730 | { | |
12731 | fixP->fx_done = 0; | |
12732 | /* Remember value for tc_gen_reloc. */ | |
12733 | fixP->fx_addnumber = value; | |
12734 | /* Clear out the frag for now. */ | |
12735 | value = 0; | |
12736 | } | |
12737 | #endif | |
3e73aa7c JH |
12738 | else if (use_rela_relocations) |
12739 | { | |
46fb6d5a JB |
12740 | if (!disallow_64bit_reloc || fixP->fx_r_type == NO_RELOC) |
12741 | fixP->fx_no_overflow = 1; | |
062cd5e7 AS |
12742 | /* Remember value for tc_gen_reloc. */ |
12743 | fixP->fx_addnumber = value; | |
3e73aa7c JH |
12744 | value = 0; |
12745 | } | |
f86103b7 | 12746 | |
94f592af | 12747 | md_number_to_chars (p, value, fixP->fx_size); |
252b5132 | 12748 | } |
252b5132 | 12749 | \f |
6d4af3c2 | 12750 | const char * |
499ac353 | 12751 | md_atof (int type, char *litP, int *sizeP) |
252b5132 | 12752 | { |
499ac353 NC |
12753 | /* This outputs the LITTLENUMs in REVERSE order; |
12754 | in accord with the bigendian 386. */ | |
5b7c81bd | 12755 | return ieee_md_atof (type, litP, sizeP, false); |
252b5132 RH |
12756 | } |
12757 | \f | |
2d545b82 | 12758 | static char output_invalid_buf[sizeof (unsigned char) * 2 + 6]; |
252b5132 | 12759 | |
252b5132 | 12760 | static char * |
e3bb37b5 | 12761 | output_invalid (int c) |
252b5132 | 12762 | { |
3882b010 | 12763 | if (ISPRINT (c)) |
f9f21a03 L |
12764 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
12765 | "'%c'", c); | |
252b5132 | 12766 | else |
f9f21a03 | 12767 | snprintf (output_invalid_buf, sizeof (output_invalid_buf), |
2d545b82 | 12768 | "(0x%x)", (unsigned char) c); |
252b5132 RH |
12769 | return output_invalid_buf; |
12770 | } | |
12771 | ||
8a6fb3f9 JB |
12772 | /* Verify that @r can be used in the current context. */ |
12773 | ||
5b7c81bd | 12774 | static bool check_register (const reg_entry *r) |
8a6fb3f9 JB |
12775 | { |
12776 | if (allow_pseudo_reg) | |
5b7c81bd | 12777 | return true; |
8a6fb3f9 JB |
12778 | |
12779 | if (operand_type_all_zero (&r->reg_type)) | |
5b7c81bd | 12780 | return false; |
8a6fb3f9 JB |
12781 | |
12782 | if ((r->reg_type.bitfield.dword | |
12783 | || (r->reg_type.bitfield.class == SReg && r->reg_num > 3) | |
12784 | || r->reg_type.bitfield.class == RegCR | |
22e00a3f | 12785 | || r->reg_type.bitfield.class == RegDR) |
8a6fb3f9 | 12786 | && !cpu_arch_flags.bitfield.cpui386) |
5b7c81bd | 12787 | return false; |
8a6fb3f9 | 12788 | |
22e00a3f JB |
12789 | if (r->reg_type.bitfield.class == RegTR |
12790 | && (flag_code == CODE_64BIT | |
12791 | || !cpu_arch_flags.bitfield.cpui386 | |
12792 | || cpu_arch_isa_flags.bitfield.cpui586 | |
12793 | || cpu_arch_isa_flags.bitfield.cpui686)) | |
5b7c81bd | 12794 | return false; |
22e00a3f | 12795 | |
8a6fb3f9 | 12796 | if (r->reg_type.bitfield.class == RegMMX && !cpu_arch_flags.bitfield.cpummx) |
5b7c81bd | 12797 | return false; |
8a6fb3f9 JB |
12798 | |
12799 | if (!cpu_arch_flags.bitfield.cpuavx512f) | |
12800 | { | |
12801 | if (r->reg_type.bitfield.zmmword | |
12802 | || r->reg_type.bitfield.class == RegMask) | |
5b7c81bd | 12803 | return false; |
8a6fb3f9 JB |
12804 | |
12805 | if (!cpu_arch_flags.bitfield.cpuavx) | |
12806 | { | |
12807 | if (r->reg_type.bitfield.ymmword) | |
5b7c81bd | 12808 | return false; |
8a6fb3f9 JB |
12809 | |
12810 | if (!cpu_arch_flags.bitfield.cpusse && r->reg_type.bitfield.xmmword) | |
5b7c81bd | 12811 | return false; |
8a6fb3f9 JB |
12812 | } |
12813 | } | |
12814 | ||
260cd341 LC |
12815 | if (r->reg_type.bitfield.tmmword |
12816 | && (!cpu_arch_flags.bitfield.cpuamx_tile | |
12817 | || flag_code != CODE_64BIT)) | |
5b7c81bd | 12818 | return false; |
260cd341 | 12819 | |
8a6fb3f9 | 12820 | if (r->reg_type.bitfield.class == RegBND && !cpu_arch_flags.bitfield.cpumpx) |
5b7c81bd | 12821 | return false; |
8a6fb3f9 JB |
12822 | |
12823 | /* Don't allow fake index register unless allow_index_reg isn't 0. */ | |
12824 | if (!allow_index_reg && r->reg_num == RegIZ) | |
5b7c81bd | 12825 | return false; |
8a6fb3f9 JB |
12826 | |
12827 | /* Upper 16 vector registers are only available with VREX in 64bit | |
12828 | mode, and require EVEX encoding. */ | |
12829 | if (r->reg_flags & RegVRex) | |
12830 | { | |
12831 | if (!cpu_arch_flags.bitfield.cpuavx512f | |
12832 | || flag_code != CODE_64BIT) | |
5b7c81bd | 12833 | return false; |
8a6fb3f9 | 12834 | |
da4977e0 JB |
12835 | if (i.vec_encoding == vex_encoding_default) |
12836 | i.vec_encoding = vex_encoding_evex; | |
12837 | else if (i.vec_encoding != vex_encoding_evex) | |
12838 | i.vec_encoding = vex_encoding_error; | |
8a6fb3f9 JB |
12839 | } |
12840 | ||
12841 | if (((r->reg_flags & (RegRex64 | RegRex)) || r->reg_type.bitfield.qword) | |
12842 | && (!cpu_arch_flags.bitfield.cpulm || r->reg_type.bitfield.class != RegCR) | |
12843 | && flag_code != CODE_64BIT) | |
5b7c81bd | 12844 | return false; |
8a6fb3f9 JB |
12845 | |
12846 | if (r->reg_type.bitfield.class == SReg && r->reg_num == RegFlat | |
12847 | && !intel_syntax) | |
5b7c81bd | 12848 | return false; |
8a6fb3f9 | 12849 | |
5b7c81bd | 12850 | return true; |
8a6fb3f9 JB |
12851 | } |
12852 | ||
af6bdddf | 12853 | /* REG_STRING starts *before* REGISTER_PREFIX. */ |
252b5132 RH |
12854 | |
12855 | static const reg_entry * | |
4d1bb795 | 12856 | parse_real_register (char *reg_string, char **end_op) |
252b5132 | 12857 | { |
af6bdddf AM |
12858 | char *s = reg_string; |
12859 | char *p; | |
252b5132 RH |
12860 | char reg_name_given[MAX_REG_NAME_SIZE + 1]; |
12861 | const reg_entry *r; | |
12862 | ||
12863 | /* Skip possible REGISTER_PREFIX and possible whitespace. */ | |
12864 | if (*s == REGISTER_PREFIX) | |
12865 | ++s; | |
12866 | ||
12867 | if (is_space_char (*s)) | |
12868 | ++s; | |
12869 | ||
12870 | p = reg_name_given; | |
af6bdddf | 12871 | while ((*p++ = register_chars[(unsigned char) *s]) != '\0') |
252b5132 RH |
12872 | { |
12873 | if (p >= reg_name_given + MAX_REG_NAME_SIZE) | |
af6bdddf AM |
12874 | return (const reg_entry *) NULL; |
12875 | s++; | |
252b5132 RH |
12876 | } |
12877 | ||
6588847e DN |
12878 | /* For naked regs, make sure that we are not dealing with an identifier. |
12879 | This prevents confusing an identifier like `eax_var' with register | |
12880 | `eax'. */ | |
12881 | if (allow_naked_reg && identifier_chars[(unsigned char) *s]) | |
12882 | return (const reg_entry *) NULL; | |
12883 | ||
af6bdddf | 12884 | *end_op = s; |
252b5132 | 12885 | |
629310ab | 12886 | r = (const reg_entry *) str_hash_find (reg_hash, reg_name_given); |
252b5132 | 12887 | |
5f47d35b | 12888 | /* Handle floating point regs, allowing spaces in the (i) part. */ |
6288d05f | 12889 | if (r == reg_st0) |
5f47d35b | 12890 | { |
0e0eea78 JB |
12891 | if (!cpu_arch_flags.bitfield.cpu8087 |
12892 | && !cpu_arch_flags.bitfield.cpu287 | |
af32b722 JB |
12893 | && !cpu_arch_flags.bitfield.cpu387 |
12894 | && !allow_pseudo_reg) | |
0e0eea78 JB |
12895 | return (const reg_entry *) NULL; |
12896 | ||
5f47d35b AM |
12897 | if (is_space_char (*s)) |
12898 | ++s; | |
12899 | if (*s == '(') | |
12900 | { | |
af6bdddf | 12901 | ++s; |
5f47d35b AM |
12902 | if (is_space_char (*s)) |
12903 | ++s; | |
12904 | if (*s >= '0' && *s <= '7') | |
12905 | { | |
db557034 | 12906 | int fpr = *s - '0'; |
af6bdddf | 12907 | ++s; |
5f47d35b AM |
12908 | if (is_space_char (*s)) |
12909 | ++s; | |
12910 | if (*s == ')') | |
12911 | { | |
12912 | *end_op = s + 1; | |
6288d05f | 12913 | know (r[fpr].reg_num == fpr); |
db557034 | 12914 | return r + fpr; |
5f47d35b | 12915 | } |
5f47d35b | 12916 | } |
47926f60 | 12917 | /* We have "%st(" then garbage. */ |
5f47d35b AM |
12918 | return (const reg_entry *) NULL; |
12919 | } | |
12920 | } | |
12921 | ||
8a6fb3f9 | 12922 | return r && check_register (r) ? r : NULL; |
252b5132 | 12923 | } |
4d1bb795 JB |
12924 | |
12925 | /* REG_STRING starts *before* REGISTER_PREFIX. */ | |
12926 | ||
12927 | static const reg_entry * | |
12928 | parse_register (char *reg_string, char **end_op) | |
12929 | { | |
12930 | const reg_entry *r; | |
12931 | ||
12932 | if (*reg_string == REGISTER_PREFIX || allow_naked_reg) | |
12933 | r = parse_real_register (reg_string, end_op); | |
12934 | else | |
12935 | r = NULL; | |
12936 | if (!r) | |
12937 | { | |
12938 | char *save = input_line_pointer; | |
12939 | char c; | |
12940 | symbolS *symbolP; | |
12941 | ||
12942 | input_line_pointer = reg_string; | |
d02603dc | 12943 | c = get_symbol_name (®_string); |
4d1bb795 | 12944 | symbolP = symbol_find (reg_string); |
64d23078 JB |
12945 | while (symbolP && S_GET_SEGMENT (symbolP) != reg_section) |
12946 | { | |
12947 | const expressionS *e = symbol_get_value_expression(symbolP); | |
12948 | ||
12949 | if (e->X_op != O_symbol || e->X_add_number) | |
12950 | break; | |
12951 | symbolP = e->X_add_symbol; | |
12952 | } | |
4d1bb795 JB |
12953 | if (symbolP && S_GET_SEGMENT (symbolP) == reg_section) |
12954 | { | |
12955 | const expressionS *e = symbol_get_value_expression (symbolP); | |
12956 | ||
3b55a1d0 JB |
12957 | know (e->X_op == O_register); |
12958 | know (e->X_add_number >= 0 | |
12959 | && (valueT) e->X_add_number < i386_regtab_size); | |
12960 | r = i386_regtab + e->X_add_number; | |
12961 | if (!check_register (r)) | |
8a6fb3f9 | 12962 | { |
3b55a1d0 JB |
12963 | as_bad (_("register '%s%s' cannot be used here"), |
12964 | register_prefix, r->reg_name); | |
12965 | r = &bad_reg; | |
8a6fb3f9 | 12966 | } |
3b55a1d0 | 12967 | *end_op = input_line_pointer; |
4d1bb795 JB |
12968 | } |
12969 | *input_line_pointer = c; | |
12970 | input_line_pointer = save; | |
12971 | } | |
12972 | return r; | |
12973 | } | |
12974 | ||
12975 | int | |
12976 | i386_parse_name (char *name, expressionS *e, char *nextcharP) | |
12977 | { | |
4faaa10f | 12978 | const reg_entry *r = NULL; |
4d1bb795 JB |
12979 | char *end = input_line_pointer; |
12980 | ||
12981 | *end = *nextcharP; | |
4faaa10f JB |
12982 | if (*name == REGISTER_PREFIX || allow_naked_reg) |
12983 | r = parse_real_register (name, &input_line_pointer); | |
4d1bb795 JB |
12984 | if (r && end <= input_line_pointer) |
12985 | { | |
12986 | *nextcharP = *input_line_pointer; | |
12987 | *input_line_pointer = 0; | |
8a6fb3f9 JB |
12988 | if (r != &bad_reg) |
12989 | { | |
12990 | e->X_op = O_register; | |
12991 | e->X_add_number = r - i386_regtab; | |
12992 | } | |
12993 | else | |
12994 | e->X_op = O_illegal; | |
4d1bb795 JB |
12995 | return 1; |
12996 | } | |
12997 | input_line_pointer = end; | |
12998 | *end = 0; | |
ee86248c | 12999 | return intel_syntax ? i386_intel_parse_name (name, e) : 0; |
4d1bb795 JB |
13000 | } |
13001 | ||
13002 | void | |
13003 | md_operand (expressionS *e) | |
13004 | { | |
ee86248c JB |
13005 | char *end; |
13006 | const reg_entry *r; | |
4d1bb795 | 13007 | |
ee86248c JB |
13008 | switch (*input_line_pointer) |
13009 | { | |
13010 | case REGISTER_PREFIX: | |
13011 | r = parse_real_register (input_line_pointer, &end); | |
4d1bb795 JB |
13012 | if (r) |
13013 | { | |
13014 | e->X_op = O_register; | |
13015 | e->X_add_number = r - i386_regtab; | |
13016 | input_line_pointer = end; | |
13017 | } | |
ee86248c JB |
13018 | break; |
13019 | ||
13020 | case '[': | |
9c2799c2 | 13021 | gas_assert (intel_syntax); |
ee86248c JB |
13022 | end = input_line_pointer++; |
13023 | expression (e); | |
13024 | if (*input_line_pointer == ']') | |
13025 | { | |
13026 | ++input_line_pointer; | |
13027 | e->X_op_symbol = make_expr_symbol (e); | |
13028 | e->X_add_symbol = NULL; | |
13029 | e->X_add_number = 0; | |
13030 | e->X_op = O_index; | |
13031 | } | |
13032 | else | |
13033 | { | |
13034 | e->X_op = O_absent; | |
13035 | input_line_pointer = end; | |
13036 | } | |
13037 | break; | |
4d1bb795 JB |
13038 | } |
13039 | } | |
13040 | ||
252b5132 | 13041 | \f |
4cc782b5 | 13042 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
b6f8c7c4 | 13043 | const char *md_shortopts = "kVQ:sqnO::"; |
252b5132 | 13044 | #else |
b6f8c7c4 | 13045 | const char *md_shortopts = "qnO::"; |
252b5132 | 13046 | #endif |
6e0b89ee | 13047 | |
3e73aa7c | 13048 | #define OPTION_32 (OPTION_MD_BASE + 0) |
b3b91714 AM |
13049 | #define OPTION_64 (OPTION_MD_BASE + 1) |
13050 | #define OPTION_DIVIDE (OPTION_MD_BASE + 2) | |
9103f4f4 L |
13051 | #define OPTION_MARCH (OPTION_MD_BASE + 3) |
13052 | #define OPTION_MTUNE (OPTION_MD_BASE + 4) | |
1efbbeb4 L |
13053 | #define OPTION_MMNEMONIC (OPTION_MD_BASE + 5) |
13054 | #define OPTION_MSYNTAX (OPTION_MD_BASE + 6) | |
13055 | #define OPTION_MINDEX_REG (OPTION_MD_BASE + 7) | |
13056 | #define OPTION_MNAKED_REG (OPTION_MD_BASE + 8) | |
bd5dea88 | 13057 | #define OPTION_MRELAX_RELOCATIONS (OPTION_MD_BASE + 9) |
c0f3af97 | 13058 | #define OPTION_MSSE2AVX (OPTION_MD_BASE + 10) |
daf50ae7 | 13059 | #define OPTION_MSSE_CHECK (OPTION_MD_BASE + 11) |
7bab8ab5 JB |
13060 | #define OPTION_MOPERAND_CHECK (OPTION_MD_BASE + 12) |
13061 | #define OPTION_MAVXSCALAR (OPTION_MD_BASE + 13) | |
13062 | #define OPTION_X32 (OPTION_MD_BASE + 14) | |
7e8b059b | 13063 | #define OPTION_MADD_BND_PREFIX (OPTION_MD_BASE + 15) |
43234a1e L |
13064 | #define OPTION_MEVEXLIG (OPTION_MD_BASE + 16) |
13065 | #define OPTION_MEVEXWIG (OPTION_MD_BASE + 17) | |
167ad85b | 13066 | #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18) |
d1982f93 | 13067 | #define OPTION_MOMIT_LOCK_PREFIX (OPTION_MD_BASE + 19) |
d3d3c6db | 13068 | #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20) |
8dcea932 | 13069 | #define OPTION_MSHARED (OPTION_MD_BASE + 21) |
5db04b09 L |
13070 | #define OPTION_MAMD64 (OPTION_MD_BASE + 22) |
13071 | #define OPTION_MINTEL64 (OPTION_MD_BASE + 23) | |
e4e00185 | 13072 | #define OPTION_MFENCE_AS_LOCK_ADD (OPTION_MD_BASE + 24) |
b4a3a7b4 | 13073 | #define OPTION_X86_USED_NOTE (OPTION_MD_BASE + 25) |
03751133 | 13074 | #define OPTION_MVEXWIG (OPTION_MD_BASE + 26) |
e379e5f3 L |
13075 | #define OPTION_MALIGN_BRANCH_BOUNDARY (OPTION_MD_BASE + 27) |
13076 | #define OPTION_MALIGN_BRANCH_PREFIX_SIZE (OPTION_MD_BASE + 28) | |
13077 | #define OPTION_MALIGN_BRANCH (OPTION_MD_BASE + 29) | |
76cf450b | 13078 | #define OPTION_MBRANCHES_WITH_32B_BOUNDARIES (OPTION_MD_BASE + 30) |
ae531041 L |
13079 | #define OPTION_MLFENCE_AFTER_LOAD (OPTION_MD_BASE + 31) |
13080 | #define OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH (OPTION_MD_BASE + 32) | |
13081 | #define OPTION_MLFENCE_BEFORE_RET (OPTION_MD_BASE + 33) | |
c8480b58 | 13082 | #define OPTION_MUSE_UNALIGNED_VECTOR_MOVE (OPTION_MD_BASE + 34) |
b3b91714 | 13083 | |
99ad8390 NC |
13084 | struct option md_longopts[] = |
13085 | { | |
3e73aa7c | 13086 | {"32", no_argument, NULL, OPTION_32}, |
321098a5 | 13087 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 13088 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c | 13089 | {"64", no_argument, NULL, OPTION_64}, |
351f65ca L |
13090 | #endif |
13091 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
570561f7 | 13092 | {"x32", no_argument, NULL, OPTION_X32}, |
8dcea932 | 13093 | {"mshared", no_argument, NULL, OPTION_MSHARED}, |
b4a3a7b4 | 13094 | {"mx86-used-note", required_argument, NULL, OPTION_X86_USED_NOTE}, |
6e0b89ee | 13095 | #endif |
b3b91714 | 13096 | {"divide", no_argument, NULL, OPTION_DIVIDE}, |
9103f4f4 L |
13097 | {"march", required_argument, NULL, OPTION_MARCH}, |
13098 | {"mtune", required_argument, NULL, OPTION_MTUNE}, | |
1efbbeb4 L |
13099 | {"mmnemonic", required_argument, NULL, OPTION_MMNEMONIC}, |
13100 | {"msyntax", required_argument, NULL, OPTION_MSYNTAX}, | |
13101 | {"mindex-reg", no_argument, NULL, OPTION_MINDEX_REG}, | |
13102 | {"mnaked-reg", no_argument, NULL, OPTION_MNAKED_REG}, | |
c0f3af97 | 13103 | {"msse2avx", no_argument, NULL, OPTION_MSSE2AVX}, |
c8480b58 | 13104 | {"muse-unaligned-vector-move", no_argument, NULL, OPTION_MUSE_UNALIGNED_VECTOR_MOVE}, |
daf50ae7 | 13105 | {"msse-check", required_argument, NULL, OPTION_MSSE_CHECK}, |
7bab8ab5 | 13106 | {"moperand-check", required_argument, NULL, OPTION_MOPERAND_CHECK}, |
539f890d | 13107 | {"mavxscalar", required_argument, NULL, OPTION_MAVXSCALAR}, |
03751133 | 13108 | {"mvexwig", required_argument, NULL, OPTION_MVEXWIG}, |
7e8b059b | 13109 | {"madd-bnd-prefix", no_argument, NULL, OPTION_MADD_BND_PREFIX}, |
43234a1e L |
13110 | {"mevexlig", required_argument, NULL, OPTION_MEVEXLIG}, |
13111 | {"mevexwig", required_argument, NULL, OPTION_MEVEXWIG}, | |
167ad85b TG |
13112 | # if defined (TE_PE) || defined (TE_PEP) |
13113 | {"mbig-obj", no_argument, NULL, OPTION_MBIG_OBJ}, | |
13114 | #endif | |
d1982f93 | 13115 | {"momit-lock-prefix", required_argument, NULL, OPTION_MOMIT_LOCK_PREFIX}, |
e4e00185 | 13116 | {"mfence-as-lock-add", required_argument, NULL, OPTION_MFENCE_AS_LOCK_ADD}, |
0cb4071e | 13117 | {"mrelax-relocations", required_argument, NULL, OPTION_MRELAX_RELOCATIONS}, |
d3d3c6db | 13118 | {"mevexrcig", required_argument, NULL, OPTION_MEVEXRCIG}, |
e379e5f3 L |
13119 | {"malign-branch-boundary", required_argument, NULL, OPTION_MALIGN_BRANCH_BOUNDARY}, |
13120 | {"malign-branch-prefix-size", required_argument, NULL, OPTION_MALIGN_BRANCH_PREFIX_SIZE}, | |
13121 | {"malign-branch", required_argument, NULL, OPTION_MALIGN_BRANCH}, | |
76cf450b | 13122 | {"mbranches-within-32B-boundaries", no_argument, NULL, OPTION_MBRANCHES_WITH_32B_BOUNDARIES}, |
ae531041 L |
13123 | {"mlfence-after-load", required_argument, NULL, OPTION_MLFENCE_AFTER_LOAD}, |
13124 | {"mlfence-before-indirect-branch", required_argument, NULL, | |
13125 | OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH}, | |
13126 | {"mlfence-before-ret", required_argument, NULL, OPTION_MLFENCE_BEFORE_RET}, | |
5db04b09 L |
13127 | {"mamd64", no_argument, NULL, OPTION_MAMD64}, |
13128 | {"mintel64", no_argument, NULL, OPTION_MINTEL64}, | |
252b5132 RH |
13129 | {NULL, no_argument, NULL, 0} |
13130 | }; | |
13131 | size_t md_longopts_size = sizeof (md_longopts); | |
13132 | ||
13133 | int | |
17b9d67d | 13134 | md_parse_option (int c, const char *arg) |
252b5132 | 13135 | { |
91d6fa6a | 13136 | unsigned int j; |
e379e5f3 | 13137 | char *arch, *next, *saved, *type; |
9103f4f4 | 13138 | |
252b5132 RH |
13139 | switch (c) |
13140 | { | |
12b55ccc L |
13141 | case 'n': |
13142 | optimize_align_code = 0; | |
13143 | break; | |
13144 | ||
a38cf1db AM |
13145 | case 'q': |
13146 | quiet_warnings = 1; | |
252b5132 RH |
13147 | break; |
13148 | ||
13149 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
a38cf1db AM |
13150 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section |
13151 | should be emitted or not. FIXME: Not implemented. */ | |
13152 | case 'Q': | |
d4693039 JB |
13153 | if ((arg[0] != 'y' && arg[0] != 'n') || arg[1]) |
13154 | return 0; | |
252b5132 RH |
13155 | break; |
13156 | ||
13157 | /* -V: SVR4 argument to print version ID. */ | |
13158 | case 'V': | |
13159 | print_version_id (); | |
13160 | break; | |
13161 | ||
a38cf1db AM |
13162 | /* -k: Ignore for FreeBSD compatibility. */ |
13163 | case 'k': | |
252b5132 | 13164 | break; |
4cc782b5 ILT |
13165 | |
13166 | case 's': | |
13167 | /* -s: On i386 Solaris, this tells the native assembler to use | |
29b0f896 | 13168 | .stab instead of .stab.excl. We always use .stab anyhow. */ |
4cc782b5 | 13169 | break; |
8dcea932 L |
13170 | |
13171 | case OPTION_MSHARED: | |
13172 | shared = 1; | |
13173 | break; | |
b4a3a7b4 L |
13174 | |
13175 | case OPTION_X86_USED_NOTE: | |
13176 | if (strcasecmp (arg, "yes") == 0) | |
13177 | x86_used_note = 1; | |
13178 | else if (strcasecmp (arg, "no") == 0) | |
13179 | x86_used_note = 0; | |
13180 | else | |
13181 | as_fatal (_("invalid -mx86-used-note= option: `%s'"), arg); | |
13182 | break; | |
13183 | ||
13184 | ||
99ad8390 | 13185 | #endif |
321098a5 | 13186 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
d382c579 | 13187 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
3e73aa7c JH |
13188 | case OPTION_64: |
13189 | { | |
13190 | const char **list, **l; | |
13191 | ||
3e73aa7c JH |
13192 | list = bfd_target_list (); |
13193 | for (l = list; *l != NULL; l++) | |
08dedd66 | 13194 | if (startswith (*l, "elf64-x86-64") |
99ad8390 NC |
13195 | || strcmp (*l, "coff-x86-64") == 0 |
13196 | || strcmp (*l, "pe-x86-64") == 0 | |
d382c579 TG |
13197 | || strcmp (*l, "pei-x86-64") == 0 |
13198 | || strcmp (*l, "mach-o-x86-64") == 0) | |
6e0b89ee AM |
13199 | { |
13200 | default_arch = "x86_64"; | |
13201 | break; | |
13202 | } | |
3e73aa7c | 13203 | if (*l == NULL) |
2b5d6a91 | 13204 | as_fatal (_("no compiled in support for x86_64")); |
3e73aa7c JH |
13205 | free (list); |
13206 | } | |
13207 | break; | |
13208 | #endif | |
252b5132 | 13209 | |
351f65ca | 13210 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
570561f7 | 13211 | case OPTION_X32: |
351f65ca L |
13212 | if (IS_ELF) |
13213 | { | |
13214 | const char **list, **l; | |
13215 | ||
13216 | list = bfd_target_list (); | |
13217 | for (l = list; *l != NULL; l++) | |
08dedd66 | 13218 | if (startswith (*l, "elf32-x86-64")) |
351f65ca L |
13219 | { |
13220 | default_arch = "x86_64:32"; | |
13221 | break; | |
13222 | } | |
13223 | if (*l == NULL) | |
2b5d6a91 | 13224 | as_fatal (_("no compiled in support for 32bit x86_64")); |
351f65ca L |
13225 | free (list); |
13226 | } | |
13227 | else | |
13228 | as_fatal (_("32bit x86_64 is only supported for ELF")); | |
13229 | break; | |
13230 | #endif | |
13231 | ||
6e0b89ee AM |
13232 | case OPTION_32: |
13233 | default_arch = "i386"; | |
13234 | break; | |
13235 | ||
b3b91714 AM |
13236 | case OPTION_DIVIDE: |
13237 | #ifdef SVR4_COMMENT_CHARS | |
13238 | { | |
13239 | char *n, *t; | |
13240 | const char *s; | |
13241 | ||
add39d23 | 13242 | n = XNEWVEC (char, strlen (i386_comment_chars) + 1); |
b3b91714 AM |
13243 | t = n; |
13244 | for (s = i386_comment_chars; *s != '\0'; s++) | |
13245 | if (*s != '/') | |
13246 | *t++ = *s; | |
13247 | *t = '\0'; | |
13248 | i386_comment_chars = n; | |
13249 | } | |
13250 | #endif | |
13251 | break; | |
13252 | ||
9103f4f4 | 13253 | case OPTION_MARCH: |
293f5f65 L |
13254 | saved = xstrdup (arg); |
13255 | arch = saved; | |
13256 | /* Allow -march=+nosse. */ | |
13257 | if (*arch == '+') | |
13258 | arch++; | |
6305a203 | 13259 | do |
9103f4f4 | 13260 | { |
6305a203 | 13261 | if (*arch == '.') |
2b5d6a91 | 13262 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
13263 | next = strchr (arch, '+'); |
13264 | if (next) | |
13265 | *next++ = '\0'; | |
91d6fa6a | 13266 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 13267 | { |
ae89daec JB |
13268 | if (arch == saved && cpu_arch[j].type != PROCESSOR_NONE |
13269 | && strcmp (arch, cpu_arch[j].name) == 0) | |
ccc9c027 | 13270 | { |
6305a203 | 13271 | /* Processor. */ |
ae89daec | 13272 | if (! cpu_arch[j].enable.bitfield.cpui386) |
1ded5609 JB |
13273 | continue; |
13274 | ||
91d6fa6a | 13275 | cpu_arch_name = cpu_arch[j].name; |
d92c7521 | 13276 | free (cpu_sub_arch_name); |
6305a203 | 13277 | cpu_sub_arch_name = NULL; |
ae89daec | 13278 | cpu_arch_flags = cpu_arch[j].enable; |
91d6fa6a | 13279 | cpu_arch_isa = cpu_arch[j].type; |
ae89daec | 13280 | cpu_arch_isa_flags = cpu_arch[j].enable; |
6305a203 L |
13281 | if (!cpu_arch_tune_set) |
13282 | { | |
13283 | cpu_arch_tune = cpu_arch_isa; | |
13284 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
13285 | } | |
13286 | break; | |
13287 | } | |
ae89daec JB |
13288 | else if (cpu_arch[j].type == PROCESSOR_NONE |
13289 | && strcmp (arch, cpu_arch[j].name) == 0 | |
13290 | && !cpu_flags_all_zero (&cpu_arch[j].enable)) | |
6305a203 | 13291 | { |
33eaf5de | 13292 | /* ISA extension. */ |
6305a203 | 13293 | i386_cpu_flags flags; |
309d3373 | 13294 | |
293f5f65 | 13295 | flags = cpu_flags_or (cpu_arch_flags, |
ae89daec | 13296 | cpu_arch[j].enable); |
81486035 | 13297 | |
5b64d091 | 13298 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
6305a203 | 13299 | { |
ae89daec | 13300 | extend_cpu_sub_arch_name (arch); |
6305a203 | 13301 | cpu_arch_flags = flags; |
a586129e | 13302 | cpu_arch_isa_flags = flags; |
6305a203 | 13303 | } |
0089dace L |
13304 | else |
13305 | cpu_arch_isa_flags | |
13306 | = cpu_flags_or (cpu_arch_isa_flags, | |
ae89daec | 13307 | cpu_arch[j].enable); |
6305a203 | 13308 | break; |
ccc9c027 | 13309 | } |
9103f4f4 | 13310 | } |
6305a203 | 13311 | |
ae89daec | 13312 | if (j >= ARRAY_SIZE (cpu_arch) && startswith (arch, "no")) |
293f5f65 | 13313 | { |
33eaf5de | 13314 | /* Disable an ISA extension. */ |
ae89daec JB |
13315 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
13316 | if (cpu_arch[j].type == PROCESSOR_NONE | |
13317 | && strcmp (arch + 2, cpu_arch[j].name) == 0) | |
293f5f65 L |
13318 | { |
13319 | i386_cpu_flags flags; | |
13320 | ||
13321 | flags = cpu_flags_and_not (cpu_arch_flags, | |
ae89daec | 13322 | cpu_arch[j].disable); |
293f5f65 L |
13323 | if (!cpu_flags_equal (&flags, &cpu_arch_flags)) |
13324 | { | |
8180707f | 13325 | extend_cpu_sub_arch_name (arch); |
293f5f65 L |
13326 | cpu_arch_flags = flags; |
13327 | cpu_arch_isa_flags = flags; | |
13328 | } | |
13329 | break; | |
13330 | } | |
293f5f65 L |
13331 | } |
13332 | ||
91d6fa6a | 13333 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 13334 | as_fatal (_("invalid -march= option: `%s'"), arg); |
6305a203 L |
13335 | |
13336 | arch = next; | |
9103f4f4 | 13337 | } |
293f5f65 L |
13338 | while (next != NULL); |
13339 | free (saved); | |
9103f4f4 L |
13340 | break; |
13341 | ||
13342 | case OPTION_MTUNE: | |
13343 | if (*arg == '.') | |
2b5d6a91 | 13344 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
91d6fa6a | 13345 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
9103f4f4 | 13346 | { |
ae89daec JB |
13347 | if (cpu_arch[j].type != PROCESSOR_NONE |
13348 | && strcmp (arg, cpu_arch[j].name) == 0) | |
9103f4f4 | 13349 | { |
ccc9c027 | 13350 | cpu_arch_tune_set = 1; |
91d6fa6a | 13351 | cpu_arch_tune = cpu_arch [j].type; |
ae89daec | 13352 | cpu_arch_tune_flags = cpu_arch[j].enable; |
9103f4f4 L |
13353 | break; |
13354 | } | |
13355 | } | |
91d6fa6a | 13356 | if (j >= ARRAY_SIZE (cpu_arch)) |
2b5d6a91 | 13357 | as_fatal (_("invalid -mtune= option: `%s'"), arg); |
9103f4f4 L |
13358 | break; |
13359 | ||
1efbbeb4 L |
13360 | case OPTION_MMNEMONIC: |
13361 | if (strcasecmp (arg, "att") == 0) | |
13362 | intel_mnemonic = 0; | |
13363 | else if (strcasecmp (arg, "intel") == 0) | |
13364 | intel_mnemonic = 1; | |
13365 | else | |
2b5d6a91 | 13366 | as_fatal (_("invalid -mmnemonic= option: `%s'"), arg); |
1efbbeb4 L |
13367 | break; |
13368 | ||
13369 | case OPTION_MSYNTAX: | |
13370 | if (strcasecmp (arg, "att") == 0) | |
13371 | intel_syntax = 0; | |
13372 | else if (strcasecmp (arg, "intel") == 0) | |
13373 | intel_syntax = 1; | |
13374 | else | |
2b5d6a91 | 13375 | as_fatal (_("invalid -msyntax= option: `%s'"), arg); |
1efbbeb4 L |
13376 | break; |
13377 | ||
13378 | case OPTION_MINDEX_REG: | |
13379 | allow_index_reg = 1; | |
13380 | break; | |
13381 | ||
13382 | case OPTION_MNAKED_REG: | |
13383 | allow_naked_reg = 1; | |
13384 | break; | |
13385 | ||
c0f3af97 L |
13386 | case OPTION_MSSE2AVX: |
13387 | sse2avx = 1; | |
13388 | break; | |
13389 | ||
c8480b58 L |
13390 | case OPTION_MUSE_UNALIGNED_VECTOR_MOVE: |
13391 | use_unaligned_vector_move = 1; | |
13392 | break; | |
13393 | ||
daf50ae7 L |
13394 | case OPTION_MSSE_CHECK: |
13395 | if (strcasecmp (arg, "error") == 0) | |
7bab8ab5 | 13396 | sse_check = check_error; |
daf50ae7 | 13397 | else if (strcasecmp (arg, "warning") == 0) |
7bab8ab5 | 13398 | sse_check = check_warning; |
daf50ae7 | 13399 | else if (strcasecmp (arg, "none") == 0) |
7bab8ab5 | 13400 | sse_check = check_none; |
daf50ae7 | 13401 | else |
2b5d6a91 | 13402 | as_fatal (_("invalid -msse-check= option: `%s'"), arg); |
daf50ae7 L |
13403 | break; |
13404 | ||
7bab8ab5 JB |
13405 | case OPTION_MOPERAND_CHECK: |
13406 | if (strcasecmp (arg, "error") == 0) | |
13407 | operand_check = check_error; | |
13408 | else if (strcasecmp (arg, "warning") == 0) | |
13409 | operand_check = check_warning; | |
13410 | else if (strcasecmp (arg, "none") == 0) | |
13411 | operand_check = check_none; | |
13412 | else | |
13413 | as_fatal (_("invalid -moperand-check= option: `%s'"), arg); | |
13414 | break; | |
13415 | ||
539f890d L |
13416 | case OPTION_MAVXSCALAR: |
13417 | if (strcasecmp (arg, "128") == 0) | |
13418 | avxscalar = vex128; | |
13419 | else if (strcasecmp (arg, "256") == 0) | |
13420 | avxscalar = vex256; | |
13421 | else | |
2b5d6a91 | 13422 | as_fatal (_("invalid -mavxscalar= option: `%s'"), arg); |
539f890d L |
13423 | break; |
13424 | ||
03751133 L |
13425 | case OPTION_MVEXWIG: |
13426 | if (strcmp (arg, "0") == 0) | |
40c9c8de | 13427 | vexwig = vexw0; |
03751133 | 13428 | else if (strcmp (arg, "1") == 0) |
40c9c8de | 13429 | vexwig = vexw1; |
03751133 L |
13430 | else |
13431 | as_fatal (_("invalid -mvexwig= option: `%s'"), arg); | |
13432 | break; | |
13433 | ||
7e8b059b L |
13434 | case OPTION_MADD_BND_PREFIX: |
13435 | add_bnd_prefix = 1; | |
13436 | break; | |
13437 | ||
43234a1e L |
13438 | case OPTION_MEVEXLIG: |
13439 | if (strcmp (arg, "128") == 0) | |
13440 | evexlig = evexl128; | |
13441 | else if (strcmp (arg, "256") == 0) | |
13442 | evexlig = evexl256; | |
13443 | else if (strcmp (arg, "512") == 0) | |
13444 | evexlig = evexl512; | |
13445 | else | |
13446 | as_fatal (_("invalid -mevexlig= option: `%s'"), arg); | |
13447 | break; | |
13448 | ||
d3d3c6db IT |
13449 | case OPTION_MEVEXRCIG: |
13450 | if (strcmp (arg, "rne") == 0) | |
13451 | evexrcig = rne; | |
13452 | else if (strcmp (arg, "rd") == 0) | |
13453 | evexrcig = rd; | |
13454 | else if (strcmp (arg, "ru") == 0) | |
13455 | evexrcig = ru; | |
13456 | else if (strcmp (arg, "rz") == 0) | |
13457 | evexrcig = rz; | |
13458 | else | |
13459 | as_fatal (_("invalid -mevexrcig= option: `%s'"), arg); | |
13460 | break; | |
13461 | ||
43234a1e L |
13462 | case OPTION_MEVEXWIG: |
13463 | if (strcmp (arg, "0") == 0) | |
13464 | evexwig = evexw0; | |
13465 | else if (strcmp (arg, "1") == 0) | |
13466 | evexwig = evexw1; | |
13467 | else | |
13468 | as_fatal (_("invalid -mevexwig= option: `%s'"), arg); | |
13469 | break; | |
13470 | ||
167ad85b TG |
13471 | # if defined (TE_PE) || defined (TE_PEP) |
13472 | case OPTION_MBIG_OBJ: | |
13473 | use_big_obj = 1; | |
13474 | break; | |
13475 | #endif | |
13476 | ||
d1982f93 | 13477 | case OPTION_MOMIT_LOCK_PREFIX: |
d022bddd IT |
13478 | if (strcasecmp (arg, "yes") == 0) |
13479 | omit_lock_prefix = 1; | |
13480 | else if (strcasecmp (arg, "no") == 0) | |
13481 | omit_lock_prefix = 0; | |
13482 | else | |
13483 | as_fatal (_("invalid -momit-lock-prefix= option: `%s'"), arg); | |
13484 | break; | |
13485 | ||
e4e00185 AS |
13486 | case OPTION_MFENCE_AS_LOCK_ADD: |
13487 | if (strcasecmp (arg, "yes") == 0) | |
13488 | avoid_fence = 1; | |
13489 | else if (strcasecmp (arg, "no") == 0) | |
13490 | avoid_fence = 0; | |
13491 | else | |
13492 | as_fatal (_("invalid -mfence-as-lock-add= option: `%s'"), arg); | |
13493 | break; | |
13494 | ||
ae531041 L |
13495 | case OPTION_MLFENCE_AFTER_LOAD: |
13496 | if (strcasecmp (arg, "yes") == 0) | |
13497 | lfence_after_load = 1; | |
13498 | else if (strcasecmp (arg, "no") == 0) | |
13499 | lfence_after_load = 0; | |
13500 | else | |
13501 | as_fatal (_("invalid -mlfence-after-load= option: `%s'"), arg); | |
13502 | break; | |
13503 | ||
13504 | case OPTION_MLFENCE_BEFORE_INDIRECT_BRANCH: | |
13505 | if (strcasecmp (arg, "all") == 0) | |
a09f656b | 13506 | { |
13507 | lfence_before_indirect_branch = lfence_branch_all; | |
13508 | if (lfence_before_ret == lfence_before_ret_none) | |
13509 | lfence_before_ret = lfence_before_ret_shl; | |
13510 | } | |
ae531041 L |
13511 | else if (strcasecmp (arg, "memory") == 0) |
13512 | lfence_before_indirect_branch = lfence_branch_memory; | |
13513 | else if (strcasecmp (arg, "register") == 0) | |
13514 | lfence_before_indirect_branch = lfence_branch_register; | |
13515 | else if (strcasecmp (arg, "none") == 0) | |
13516 | lfence_before_indirect_branch = lfence_branch_none; | |
13517 | else | |
13518 | as_fatal (_("invalid -mlfence-before-indirect-branch= option: `%s'"), | |
13519 | arg); | |
13520 | break; | |
13521 | ||
13522 | case OPTION_MLFENCE_BEFORE_RET: | |
13523 | if (strcasecmp (arg, "or") == 0) | |
13524 | lfence_before_ret = lfence_before_ret_or; | |
13525 | else if (strcasecmp (arg, "not") == 0) | |
13526 | lfence_before_ret = lfence_before_ret_not; | |
a09f656b | 13527 | else if (strcasecmp (arg, "shl") == 0 || strcasecmp (arg, "yes") == 0) |
13528 | lfence_before_ret = lfence_before_ret_shl; | |
ae531041 L |
13529 | else if (strcasecmp (arg, "none") == 0) |
13530 | lfence_before_ret = lfence_before_ret_none; | |
13531 | else | |
13532 | as_fatal (_("invalid -mlfence-before-ret= option: `%s'"), | |
13533 | arg); | |
13534 | break; | |
13535 | ||
0cb4071e L |
13536 | case OPTION_MRELAX_RELOCATIONS: |
13537 | if (strcasecmp (arg, "yes") == 0) | |
13538 | generate_relax_relocations = 1; | |
13539 | else if (strcasecmp (arg, "no") == 0) | |
13540 | generate_relax_relocations = 0; | |
13541 | else | |
13542 | as_fatal (_("invalid -mrelax-relocations= option: `%s'"), arg); | |
13543 | break; | |
13544 | ||
e379e5f3 L |
13545 | case OPTION_MALIGN_BRANCH_BOUNDARY: |
13546 | { | |
13547 | char *end; | |
13548 | long int align = strtoul (arg, &end, 0); | |
13549 | if (*end == '\0') | |
13550 | { | |
13551 | if (align == 0) | |
13552 | { | |
13553 | align_branch_power = 0; | |
13554 | break; | |
13555 | } | |
13556 | else if (align >= 16) | |
13557 | { | |
13558 | int align_power; | |
13559 | for (align_power = 0; | |
13560 | (align & 1) == 0; | |
13561 | align >>= 1, align_power++) | |
13562 | continue; | |
13563 | /* Limit alignment power to 31. */ | |
13564 | if (align == 1 && align_power < 32) | |
13565 | { | |
13566 | align_branch_power = align_power; | |
13567 | break; | |
13568 | } | |
13569 | } | |
13570 | } | |
13571 | as_fatal (_("invalid -malign-branch-boundary= value: %s"), arg); | |
13572 | } | |
13573 | break; | |
13574 | ||
13575 | case OPTION_MALIGN_BRANCH_PREFIX_SIZE: | |
13576 | { | |
13577 | char *end; | |
13578 | int align = strtoul (arg, &end, 0); | |
13579 | /* Some processors only support 5 prefixes. */ | |
13580 | if (*end == '\0' && align >= 0 && align < 6) | |
13581 | { | |
13582 | align_branch_prefix_size = align; | |
13583 | break; | |
13584 | } | |
13585 | as_fatal (_("invalid -malign-branch-prefix-size= value: %s"), | |
13586 | arg); | |
13587 | } | |
13588 | break; | |
13589 | ||
13590 | case OPTION_MALIGN_BRANCH: | |
13591 | align_branch = 0; | |
13592 | saved = xstrdup (arg); | |
13593 | type = saved; | |
13594 | do | |
13595 | { | |
13596 | next = strchr (type, '+'); | |
13597 | if (next) | |
13598 | *next++ = '\0'; | |
13599 | if (strcasecmp (type, "jcc") == 0) | |
13600 | align_branch |= align_branch_jcc_bit; | |
13601 | else if (strcasecmp (type, "fused") == 0) | |
13602 | align_branch |= align_branch_fused_bit; | |
13603 | else if (strcasecmp (type, "jmp") == 0) | |
13604 | align_branch |= align_branch_jmp_bit; | |
13605 | else if (strcasecmp (type, "call") == 0) | |
13606 | align_branch |= align_branch_call_bit; | |
13607 | else if (strcasecmp (type, "ret") == 0) | |
13608 | align_branch |= align_branch_ret_bit; | |
13609 | else if (strcasecmp (type, "indirect") == 0) | |
13610 | align_branch |= align_branch_indirect_bit; | |
13611 | else | |
13612 | as_fatal (_("invalid -malign-branch= option: `%s'"), arg); | |
13613 | type = next; | |
13614 | } | |
13615 | while (next != NULL); | |
13616 | free (saved); | |
13617 | break; | |
13618 | ||
76cf450b L |
13619 | case OPTION_MBRANCHES_WITH_32B_BOUNDARIES: |
13620 | align_branch_power = 5; | |
13621 | align_branch_prefix_size = 5; | |
13622 | align_branch = (align_branch_jcc_bit | |
13623 | | align_branch_fused_bit | |
13624 | | align_branch_jmp_bit); | |
13625 | break; | |
13626 | ||
5db04b09 | 13627 | case OPTION_MAMD64: |
4b5aaf5f | 13628 | isa64 = amd64; |
5db04b09 L |
13629 | break; |
13630 | ||
13631 | case OPTION_MINTEL64: | |
4b5aaf5f | 13632 | isa64 = intel64; |
5db04b09 L |
13633 | break; |
13634 | ||
b6f8c7c4 L |
13635 | case 'O': |
13636 | if (arg == NULL) | |
13637 | { | |
13638 | optimize = 1; | |
13639 | /* Turn off -Os. */ | |
13640 | optimize_for_space = 0; | |
13641 | } | |
13642 | else if (*arg == 's') | |
13643 | { | |
13644 | optimize_for_space = 1; | |
13645 | /* Turn on all encoding optimizations. */ | |
41fd2579 | 13646 | optimize = INT_MAX; |
b6f8c7c4 L |
13647 | } |
13648 | else | |
13649 | { | |
13650 | optimize = atoi (arg); | |
13651 | /* Turn off -Os. */ | |
13652 | optimize_for_space = 0; | |
13653 | } | |
13654 | break; | |
13655 | ||
252b5132 RH |
13656 | default: |
13657 | return 0; | |
13658 | } | |
13659 | return 1; | |
13660 | } | |
13661 | ||
8a2c8fef L |
13662 | #define MESSAGE_TEMPLATE \ |
13663 | " " | |
13664 | ||
293f5f65 L |
13665 | static char * |
13666 | output_message (FILE *stream, char *p, char *message, char *start, | |
13667 | int *left_p, const char *name, int len) | |
13668 | { | |
13669 | int size = sizeof (MESSAGE_TEMPLATE); | |
13670 | int left = *left_p; | |
13671 | ||
13672 | /* Reserve 2 spaces for ", " or ",\0" */ | |
13673 | left -= len + 2; | |
13674 | ||
13675 | /* Check if there is any room. */ | |
13676 | if (left >= 0) | |
13677 | { | |
13678 | if (p != start) | |
13679 | { | |
13680 | *p++ = ','; | |
13681 | *p++ = ' '; | |
13682 | } | |
13683 | p = mempcpy (p, name, len); | |
13684 | } | |
13685 | else | |
13686 | { | |
13687 | /* Output the current message now and start a new one. */ | |
13688 | *p++ = ','; | |
13689 | *p = '\0'; | |
13690 | fprintf (stream, "%s\n", message); | |
13691 | p = start; | |
13692 | left = size - (start - message) - len - 2; | |
13693 | ||
13694 | gas_assert (left >= 0); | |
13695 | ||
13696 | p = mempcpy (p, name, len); | |
13697 | } | |
13698 | ||
13699 | *left_p = left; | |
13700 | return p; | |
13701 | } | |
13702 | ||
8a2c8fef | 13703 | static void |
1ded5609 | 13704 | show_arch (FILE *stream, int ext, int check) |
8a2c8fef L |
13705 | { |
13706 | static char message[] = MESSAGE_TEMPLATE; | |
13707 | char *start = message + 27; | |
13708 | char *p; | |
13709 | int size = sizeof (MESSAGE_TEMPLATE); | |
13710 | int left; | |
13711 | const char *name; | |
13712 | int len; | |
13713 | unsigned int j; | |
13714 | ||
13715 | p = start; | |
13716 | left = size - (start - message); | |
3ce2ebcf JB |
13717 | |
13718 | if (!ext && check) | |
13719 | { | |
13720 | p = output_message (stream, p, message, start, &left, | |
13721 | STRING_COMMA_LEN ("default")); | |
f68697e8 JB |
13722 | p = output_message (stream, p, message, start, &left, |
13723 | STRING_COMMA_LEN ("push")); | |
13724 | p = output_message (stream, p, message, start, &left, | |
13725 | STRING_COMMA_LEN ("pop")); | |
3ce2ebcf JB |
13726 | } |
13727 | ||
8a2c8fef L |
13728 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
13729 | { | |
13730 | /* Should it be skipped? */ | |
13731 | if (cpu_arch [j].skip) | |
13732 | continue; | |
13733 | ||
13734 | name = cpu_arch [j].name; | |
13735 | len = cpu_arch [j].len; | |
ae89daec | 13736 | if (cpu_arch[j].type == PROCESSOR_NONE) |
8a2c8fef L |
13737 | { |
13738 | /* It is an extension. Skip if we aren't asked to show it. */ | |
ae89daec | 13739 | if (!ext || cpu_flags_all_zero (&cpu_arch[j].enable)) |
8a2c8fef L |
13740 | continue; |
13741 | } | |
13742 | else if (ext) | |
13743 | { | |
13744 | /* It is an processor. Skip if we show only extension. */ | |
13745 | continue; | |
13746 | } | |
ae89daec | 13747 | else if (check && ! cpu_arch[j].enable.bitfield.cpui386) |
1ded5609 JB |
13748 | { |
13749 | /* It is an impossible processor - skip. */ | |
13750 | continue; | |
13751 | } | |
8a2c8fef | 13752 | |
293f5f65 | 13753 | p = output_message (stream, p, message, start, &left, name, len); |
8a2c8fef L |
13754 | } |
13755 | ||
293f5f65 L |
13756 | /* Display disabled extensions. */ |
13757 | if (ext) | |
ae89daec | 13758 | for (j = 0; j < ARRAY_SIZE (cpu_arch); j++) |
293f5f65 | 13759 | { |
ae89daec JB |
13760 | char *str; |
13761 | ||
13762 | if (cpu_arch[j].type != PROCESSOR_NONE | |
13763 | || !cpu_flags_all_zero (&cpu_arch[j].enable)) | |
13764 | continue; | |
13765 | str = xasprintf ("no%s", cpu_arch[j].name); | |
13766 | p = output_message (stream, p, message, start, &left, str, | |
13767 | strlen (str)); | |
13768 | free (str); | |
293f5f65 L |
13769 | } |
13770 | ||
8a2c8fef L |
13771 | *p = '\0'; |
13772 | fprintf (stream, "%s\n", message); | |
13773 | } | |
13774 | ||
252b5132 | 13775 | void |
8a2c8fef | 13776 | md_show_usage (FILE *stream) |
252b5132 | 13777 | { |
4cc782b5 ILT |
13778 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
13779 | fprintf (stream, _("\ | |
d4693039 | 13780 | -Qy, -Qn ignored\n\ |
a38cf1db | 13781 | -V print assembler version number\n\ |
b3b91714 AM |
13782 | -k ignored\n")); |
13783 | #endif | |
13784 | fprintf (stream, _("\ | |
7ebd68d1 NC |
13785 | -n do not optimize code alignment\n\ |
13786 | -O{012s} attempt some code optimizations\n\ | |
b3b91714 AM |
13787 | -q quieten some warnings\n")); |
13788 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13789 | fprintf (stream, _("\ | |
a38cf1db | 13790 | -s ignored\n")); |
b3b91714 | 13791 | #endif |
b00af7c8 JB |
13792 | #ifdef BFD64 |
13793 | # if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
13794 | fprintf (stream, _("\ | |
13795 | --32/--64/--x32 generate 32bit/64bit/x32 object\n")); | |
13796 | # elif defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O) | |
751d281c | 13797 | fprintf (stream, _("\ |
b00af7c8 JB |
13798 | --32/--64 generate 32bit/64bit object\n")); |
13799 | # endif | |
751d281c | 13800 | #endif |
b3b91714 AM |
13801 | #ifdef SVR4_COMMENT_CHARS |
13802 | fprintf (stream, _("\ | |
13803 | --divide do not treat `/' as a comment character\n")); | |
a38cf1db AM |
13804 | #else |
13805 | fprintf (stream, _("\ | |
b3b91714 | 13806 | --divide ignored\n")); |
4cc782b5 | 13807 | #endif |
9103f4f4 | 13808 | fprintf (stream, _("\ |
6305a203 | 13809 | -march=CPU[,+EXTENSION...]\n\ |
8a2c8fef | 13810 | generate code for CPU and EXTENSION, CPU is one of:\n")); |
1ded5609 | 13811 | show_arch (stream, 0, 1); |
8a2c8fef | 13812 | fprintf (stream, _("\ |
ae89daec | 13813 | EXTENSION is combination of (possibly \"no\"-prefixed):\n")); |
1ded5609 | 13814 | show_arch (stream, 1, 0); |
6305a203 | 13815 | fprintf (stream, _("\ |
8a2c8fef | 13816 | -mtune=CPU optimize for CPU, CPU is one of:\n")); |
1ded5609 | 13817 | show_arch (stream, 0, 0); |
ba104c83 | 13818 | fprintf (stream, _("\ |
c0f3af97 L |
13819 | -msse2avx encode SSE instructions with VEX prefix\n")); |
13820 | fprintf (stream, _("\ | |
c8480b58 L |
13821 | -muse-unaligned-vector-move\n\ |
13822 | encode aligned vector move as unaligned vector move\n")); | |
13823 | fprintf (stream, _("\ | |
7c5c05ef | 13824 | -msse-check=[none|error|warning] (default: warning)\n\ |
daf50ae7 L |
13825 | check SSE instructions\n")); |
13826 | fprintf (stream, _("\ | |
7c5c05ef | 13827 | -moperand-check=[none|error|warning] (default: warning)\n\ |
7bab8ab5 JB |
13828 | check operand combinations for validity\n")); |
13829 | fprintf (stream, _("\ | |
7c5c05ef L |
13830 | -mavxscalar=[128|256] (default: 128)\n\ |
13831 | encode scalar AVX instructions with specific vector\n\ | |
539f890d L |
13832 | length\n")); |
13833 | fprintf (stream, _("\ | |
03751133 L |
13834 | -mvexwig=[0|1] (default: 0)\n\ |
13835 | encode VEX instructions with specific VEX.W value\n\ | |
13836 | for VEX.W bit ignored instructions\n")); | |
13837 | fprintf (stream, _("\ | |
7c5c05ef L |
13838 | -mevexlig=[128|256|512] (default: 128)\n\ |
13839 | encode scalar EVEX instructions with specific vector\n\ | |
43234a1e L |
13840 | length\n")); |
13841 | fprintf (stream, _("\ | |
7c5c05ef L |
13842 | -mevexwig=[0|1] (default: 0)\n\ |
13843 | encode EVEX instructions with specific EVEX.W value\n\ | |
43234a1e L |
13844 | for EVEX.W bit ignored instructions\n")); |
13845 | fprintf (stream, _("\ | |
7c5c05ef | 13846 | -mevexrcig=[rne|rd|ru|rz] (default: rne)\n\ |
d3d3c6db IT |
13847 | encode EVEX instructions with specific EVEX.RC value\n\ |
13848 | for SAE-only ignored instructions\n")); | |
13849 | fprintf (stream, _("\ | |
7c5c05ef L |
13850 | -mmnemonic=[att|intel] ")); |
13851 | if (SYSV386_COMPAT) | |
13852 | fprintf (stream, _("(default: att)\n")); | |
13853 | else | |
13854 | fprintf (stream, _("(default: intel)\n")); | |
13855 | fprintf (stream, _("\ | |
13856 | use AT&T/Intel mnemonic\n")); | |
ba104c83 | 13857 | fprintf (stream, _("\ |
7c5c05ef L |
13858 | -msyntax=[att|intel] (default: att)\n\ |
13859 | use AT&T/Intel syntax\n")); | |
ba104c83 L |
13860 | fprintf (stream, _("\ |
13861 | -mindex-reg support pseudo index registers\n")); | |
13862 | fprintf (stream, _("\ | |
13863 | -mnaked-reg don't require `%%' prefix for registers\n")); | |
13864 | fprintf (stream, _("\ | |
7e8b059b | 13865 | -madd-bnd-prefix add BND prefix for all valid branches\n")); |
b4a3a7b4 | 13866 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
8dcea932 L |
13867 | fprintf (stream, _("\ |
13868 | -mshared disable branch optimization for shared code\n")); | |
b4a3a7b4 L |
13869 | fprintf (stream, _("\ |
13870 | -mx86-used-note=[no|yes] ")); | |
13871 | if (DEFAULT_X86_USED_NOTE) | |
13872 | fprintf (stream, _("(default: yes)\n")); | |
13873 | else | |
13874 | fprintf (stream, _("(default: no)\n")); | |
13875 | fprintf (stream, _("\ | |
13876 | generate x86 used ISA and feature properties\n")); | |
13877 | #endif | |
13878 | #if defined (TE_PE) || defined (TE_PEP) | |
167ad85b TG |
13879 | fprintf (stream, _("\ |
13880 | -mbig-obj generate big object files\n")); | |
13881 | #endif | |
d022bddd | 13882 | fprintf (stream, _("\ |
7c5c05ef | 13883 | -momit-lock-prefix=[no|yes] (default: no)\n\ |
d022bddd | 13884 | strip all lock prefixes\n")); |
5db04b09 | 13885 | fprintf (stream, _("\ |
7c5c05ef | 13886 | -mfence-as-lock-add=[no|yes] (default: no)\n\ |
e4e00185 AS |
13887 | encode lfence, mfence and sfence as\n\ |
13888 | lock addl $0x0, (%%{re}sp)\n")); | |
13889 | fprintf (stream, _("\ | |
7c5c05ef L |
13890 | -mrelax-relocations=[no|yes] ")); |
13891 | if (DEFAULT_GENERATE_X86_RELAX_RELOCATIONS) | |
13892 | fprintf (stream, _("(default: yes)\n")); | |
13893 | else | |
13894 | fprintf (stream, _("(default: no)\n")); | |
13895 | fprintf (stream, _("\ | |
0cb4071e L |
13896 | generate relax relocations\n")); |
13897 | fprintf (stream, _("\ | |
e379e5f3 L |
13898 | -malign-branch-boundary=NUM (default: 0)\n\ |
13899 | align branches within NUM byte boundary\n")); | |
13900 | fprintf (stream, _("\ | |
13901 | -malign-branch=TYPE[+TYPE...] (default: jcc+fused+jmp)\n\ | |
13902 | TYPE is combination of jcc, fused, jmp, call, ret,\n\ | |
13903 | indirect\n\ | |
13904 | specify types of branches to align\n")); | |
13905 | fprintf (stream, _("\ | |
13906 | -malign-branch-prefix-size=NUM (default: 5)\n\ | |
13907 | align branches with NUM prefixes per instruction\n")); | |
13908 | fprintf (stream, _("\ | |
76cf450b L |
13909 | -mbranches-within-32B-boundaries\n\ |
13910 | align branches within 32 byte boundary\n")); | |
13911 | fprintf (stream, _("\ | |
ae531041 L |
13912 | -mlfence-after-load=[no|yes] (default: no)\n\ |
13913 | generate lfence after load\n")); | |
13914 | fprintf (stream, _("\ | |
13915 | -mlfence-before-indirect-branch=[none|all|register|memory] (default: none)\n\ | |
13916 | generate lfence before indirect near branch\n")); | |
13917 | fprintf (stream, _("\ | |
a09f656b | 13918 | -mlfence-before-ret=[none|or|not|shl|yes] (default: none)\n\ |
ae531041 L |
13919 | generate lfence before ret\n")); |
13920 | fprintf (stream, _("\ | |
7c5c05ef | 13921 | -mamd64 accept only AMD64 ISA [default]\n")); |
5db04b09 L |
13922 | fprintf (stream, _("\ |
13923 | -mintel64 accept only Intel64 ISA\n")); | |
252b5132 RH |
13924 | } |
13925 | ||
3e73aa7c | 13926 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
321098a5 | 13927 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
e57f8c65 | 13928 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
252b5132 RH |
13929 | |
13930 | /* Pick the target format to use. */ | |
13931 | ||
47926f60 | 13932 | const char * |
e3bb37b5 | 13933 | i386_target_format (void) |
252b5132 | 13934 | { |
d34049e8 | 13935 | if (startswith (default_arch, "x86_64")) |
351f65ca L |
13936 | { |
13937 | update_code_flag (CODE_64BIT, 1); | |
13938 | if (default_arch[6] == '\0') | |
7f56bc95 | 13939 | x86_elf_abi = X86_64_ABI; |
351f65ca | 13940 | else |
7f56bc95 | 13941 | x86_elf_abi = X86_64_X32_ABI; |
351f65ca | 13942 | } |
3e73aa7c | 13943 | else if (!strcmp (default_arch, "i386")) |
78f12dd3 | 13944 | update_code_flag (CODE_32BIT, 1); |
5197d474 L |
13945 | else if (!strcmp (default_arch, "iamcu")) |
13946 | { | |
13947 | update_code_flag (CODE_32BIT, 1); | |
13948 | if (cpu_arch_isa == PROCESSOR_UNKNOWN) | |
13949 | { | |
13950 | static const i386_cpu_flags iamcu_flags = CPU_IAMCU_FLAGS; | |
13951 | cpu_arch_name = "iamcu"; | |
d92c7521 | 13952 | free (cpu_sub_arch_name); |
5197d474 L |
13953 | cpu_sub_arch_name = NULL; |
13954 | cpu_arch_flags = iamcu_flags; | |
13955 | cpu_arch_isa = PROCESSOR_IAMCU; | |
13956 | cpu_arch_isa_flags = iamcu_flags; | |
13957 | if (!cpu_arch_tune_set) | |
13958 | { | |
13959 | cpu_arch_tune = cpu_arch_isa; | |
13960 | cpu_arch_tune_flags = cpu_arch_isa_flags; | |
13961 | } | |
13962 | } | |
8d471ec1 | 13963 | else if (cpu_arch_isa != PROCESSOR_IAMCU) |
5197d474 L |
13964 | as_fatal (_("Intel MCU doesn't support `%s' architecture"), |
13965 | cpu_arch_name); | |
13966 | } | |
3e73aa7c | 13967 | else |
2b5d6a91 | 13968 | as_fatal (_("unknown architecture")); |
89507696 JB |
13969 | |
13970 | if (cpu_flags_all_zero (&cpu_arch_isa_flags)) | |
ae89daec | 13971 | cpu_arch_isa_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
89507696 | 13972 | if (cpu_flags_all_zero (&cpu_arch_tune_flags)) |
ae89daec | 13973 | cpu_arch_tune_flags = cpu_arch[flag_code == CODE_64BIT].enable; |
89507696 | 13974 | |
252b5132 RH |
13975 | switch (OUTPUT_FLAVOR) |
13976 | { | |
9384f2ff | 13977 | #if defined (OBJ_MAYBE_AOUT) || defined (OBJ_AOUT) |
4c63da97 | 13978 | case bfd_target_aout_flavour: |
47926f60 | 13979 | return AOUT_TARGET_FORMAT; |
4c63da97 | 13980 | #endif |
9384f2ff AM |
13981 | #if defined (OBJ_MAYBE_COFF) || defined (OBJ_COFF) |
13982 | # if defined (TE_PE) || defined (TE_PEP) | |
13983 | case bfd_target_coff_flavour: | |
167ad85b | 13984 | if (flag_code == CODE_64BIT) |
eb19308f JB |
13985 | { |
13986 | object_64bit = 1; | |
13987 | return use_big_obj ? "pe-bigobj-x86-64" : "pe-x86-64"; | |
13988 | } | |
13989 | return use_big_obj ? "pe-bigobj-i386" : "pe-i386"; | |
9384f2ff | 13990 | # elif defined (TE_GO32) |
0561d57c JK |
13991 | case bfd_target_coff_flavour: |
13992 | return "coff-go32"; | |
9384f2ff | 13993 | # else |
252b5132 RH |
13994 | case bfd_target_coff_flavour: |
13995 | return "coff-i386"; | |
9384f2ff | 13996 | # endif |
4c63da97 | 13997 | #endif |
3e73aa7c | 13998 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) |
252b5132 | 13999 | case bfd_target_elf_flavour: |
3e73aa7c | 14000 | { |
351f65ca L |
14001 | const char *format; |
14002 | ||
14003 | switch (x86_elf_abi) | |
4fa24527 | 14004 | { |
351f65ca L |
14005 | default: |
14006 | format = ELF_TARGET_FORMAT; | |
e379e5f3 L |
14007 | #ifndef TE_SOLARIS |
14008 | tls_get_addr = "___tls_get_addr"; | |
14009 | #endif | |
351f65ca | 14010 | break; |
7f56bc95 | 14011 | case X86_64_ABI: |
351f65ca | 14012 | use_rela_relocations = 1; |
4fa24527 | 14013 | object_64bit = 1; |
e379e5f3 L |
14014 | #ifndef TE_SOLARIS |
14015 | tls_get_addr = "__tls_get_addr"; | |
14016 | #endif | |
351f65ca L |
14017 | format = ELF_TARGET_FORMAT64; |
14018 | break; | |
7f56bc95 | 14019 | case X86_64_X32_ABI: |
4fa24527 | 14020 | use_rela_relocations = 1; |
351f65ca | 14021 | object_64bit = 1; |
e379e5f3 L |
14022 | #ifndef TE_SOLARIS |
14023 | tls_get_addr = "__tls_get_addr"; | |
14024 | #endif | |
862be3fb | 14025 | disallow_64bit_reloc = 1; |
351f65ca L |
14026 | format = ELF_TARGET_FORMAT32; |
14027 | break; | |
4fa24527 | 14028 | } |
c085ab00 | 14029 | if (cpu_arch_isa == PROCESSOR_IAMCU) |
81486035 L |
14030 | { |
14031 | if (x86_elf_abi != I386_ABI) | |
14032 | as_fatal (_("Intel MCU is 32bit only")); | |
14033 | return ELF_TARGET_IAMCU_FORMAT; | |
14034 | } | |
8a9036a4 | 14035 | else |
351f65ca | 14036 | return format; |
3e73aa7c | 14037 | } |
e57f8c65 TG |
14038 | #endif |
14039 | #if defined (OBJ_MACH_O) | |
14040 | case bfd_target_mach_o_flavour: | |
d382c579 TG |
14041 | if (flag_code == CODE_64BIT) |
14042 | { | |
14043 | use_rela_relocations = 1; | |
14044 | object_64bit = 1; | |
14045 | return "mach-o-x86-64"; | |
14046 | } | |
14047 | else | |
14048 | return "mach-o-i386"; | |
4c63da97 | 14049 | #endif |
252b5132 RH |
14050 | default: |
14051 | abort (); | |
14052 | return NULL; | |
14053 | } | |
14054 | } | |
14055 | ||
47926f60 | 14056 | #endif /* OBJ_MAYBE_ more than one */ |
252b5132 | 14057 | \f |
252b5132 | 14058 | symbolS * |
7016a5d5 | 14059 | md_undefined_symbol (char *name) |
252b5132 | 14060 | { |
18dc2407 ILT |
14061 | if (name[0] == GLOBAL_OFFSET_TABLE_NAME[0] |
14062 | && name[1] == GLOBAL_OFFSET_TABLE_NAME[1] | |
14063 | && name[2] == GLOBAL_OFFSET_TABLE_NAME[2] | |
14064 | && strcmp (name, GLOBAL_OFFSET_TABLE_NAME) == 0) | |
24eab124 AM |
14065 | { |
14066 | if (!GOT_symbol) | |
14067 | { | |
14068 | if (symbol_find (name)) | |
14069 | as_bad (_("GOT already in symbol table")); | |
14070 | GOT_symbol = symbol_new (name, undefined_section, | |
e01e1cee | 14071 | &zero_address_frag, 0); |
24eab124 AM |
14072 | }; |
14073 | return GOT_symbol; | |
14074 | } | |
252b5132 RH |
14075 | return 0; |
14076 | } | |
14077 | ||
14078 | /* Round up a section size to the appropriate boundary. */ | |
47926f60 | 14079 | |
252b5132 | 14080 | valueT |
7016a5d5 | 14081 | md_section_align (segT segment ATTRIBUTE_UNUSED, valueT size) |
252b5132 | 14082 | { |
4c63da97 AM |
14083 | #if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT)) |
14084 | if (OUTPUT_FLAVOR == bfd_target_aout_flavour) | |
14085 | { | |
14086 | /* For a.out, force the section size to be aligned. If we don't do | |
14087 | this, BFD will align it for us, but it will not write out the | |
14088 | final bytes of the section. This may be a bug in BFD, but it is | |
14089 | easier to fix it here since that is how the other a.out targets | |
14090 | work. */ | |
14091 | int align; | |
14092 | ||
fd361982 | 14093 | align = bfd_section_alignment (segment); |
8d3842cd | 14094 | size = ((size + (1 << align) - 1) & (-((valueT) 1 << align))); |
4c63da97 | 14095 | } |
252b5132 RH |
14096 | #endif |
14097 | ||
14098 | return size; | |
14099 | } | |
14100 | ||
14101 | /* On the i386, PC-relative offsets are relative to the start of the | |
14102 | next instruction. That is, the address of the offset, plus its | |
14103 | size, since the offset is always the last part of the insn. */ | |
14104 | ||
14105 | long | |
e3bb37b5 | 14106 | md_pcrel_from (fixS *fixP) |
252b5132 RH |
14107 | { |
14108 | return fixP->fx_size + fixP->fx_where + fixP->fx_frag->fr_address; | |
14109 | } | |
14110 | ||
14111 | #ifndef I386COFF | |
14112 | ||
14113 | static void | |
e3bb37b5 | 14114 | s_bss (int ignore ATTRIBUTE_UNUSED) |
252b5132 | 14115 | { |
29b0f896 | 14116 | int temp; |
252b5132 | 14117 | |
8a75718c JB |
14118 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
14119 | if (IS_ELF) | |
14120 | obj_elf_section_change_hook (); | |
14121 | #endif | |
252b5132 RH |
14122 | temp = get_absolute_expression (); |
14123 | subseg_set (bss_section, (subsegT) temp); | |
14124 | demand_empty_rest_of_line (); | |
14125 | } | |
14126 | ||
14127 | #endif | |
14128 | ||
e379e5f3 L |
14129 | /* Remember constant directive. */ |
14130 | ||
14131 | void | |
14132 | i386_cons_align (int ignore ATTRIBUTE_UNUSED) | |
14133 | { | |
14134 | if (last_insn.kind != last_insn_directive | |
14135 | && (bfd_section_flags (now_seg) & SEC_CODE)) | |
14136 | { | |
14137 | last_insn.seg = now_seg; | |
14138 | last_insn.kind = last_insn_directive; | |
14139 | last_insn.name = "constant directive"; | |
14140 | last_insn.file = as_where (&last_insn.line); | |
ae531041 L |
14141 | if (lfence_before_ret != lfence_before_ret_none) |
14142 | { | |
14143 | if (lfence_before_indirect_branch != lfence_branch_none) | |
14144 | as_warn (_("constant directive skips -mlfence-before-ret " | |
14145 | "and -mlfence-before-indirect-branch")); | |
14146 | else | |
14147 | as_warn (_("constant directive skips -mlfence-before-ret")); | |
14148 | } | |
14149 | else if (lfence_before_indirect_branch != lfence_branch_none) | |
14150 | as_warn (_("constant directive skips -mlfence-before-indirect-branch")); | |
e379e5f3 L |
14151 | } |
14152 | } | |
14153 | ||
3abbafc2 | 14154 | int |
e3bb37b5 | 14155 | i386_validate_fix (fixS *fixp) |
252b5132 | 14156 | { |
e52a16f2 JB |
14157 | if (fixp->fx_addsy && S_GET_SEGMENT(fixp->fx_addsy) == reg_section) |
14158 | { | |
14159 | reloc_howto_type *howto; | |
14160 | ||
14161 | howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
14162 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14163 | _("invalid %s relocation against register"), | |
14164 | howto ? howto->name : "<unknown>"); | |
14165 | return 0; | |
14166 | } | |
14167 | ||
3abbafc2 JB |
14168 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
14169 | if (fixp->fx_r_type == BFD_RELOC_SIZE32 | |
14170 | || fixp->fx_r_type == BFD_RELOC_SIZE64) | |
14171 | return IS_ELF && fixp->fx_addsy | |
14172 | && (!S_IS_DEFINED (fixp->fx_addsy) | |
14173 | || S_IS_EXTERNAL (fixp->fx_addsy)); | |
14174 | #endif | |
14175 | ||
02a86693 | 14176 | if (fixp->fx_subsy) |
252b5132 | 14177 | { |
02a86693 | 14178 | if (fixp->fx_subsy == GOT_symbol) |
23df1078 | 14179 | { |
02a86693 L |
14180 | if (fixp->fx_r_type == BFD_RELOC_32_PCREL) |
14181 | { | |
14182 | if (!object_64bit) | |
14183 | abort (); | |
14184 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
14185 | if (fixp->fx_tcbit2) | |
56ceb5b5 L |
14186 | fixp->fx_r_type = (fixp->fx_tcbit |
14187 | ? BFD_RELOC_X86_64_REX_GOTPCRELX | |
14188 | : BFD_RELOC_X86_64_GOTPCRELX); | |
02a86693 L |
14189 | else |
14190 | #endif | |
14191 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTPCREL; | |
14192 | } | |
d6ab8113 | 14193 | else |
02a86693 L |
14194 | { |
14195 | if (!object_64bit) | |
14196 | fixp->fx_r_type = BFD_RELOC_386_GOTOFF; | |
14197 | else | |
14198 | fixp->fx_r_type = BFD_RELOC_X86_64_GOTOFF64; | |
14199 | } | |
14200 | fixp->fx_subsy = 0; | |
23df1078 | 14201 | } |
252b5132 | 14202 | } |
02a86693 | 14203 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
2585b7a5 | 14204 | else |
02a86693 | 14205 | { |
2585b7a5 L |
14206 | /* NB: Commit 292676c1 resolved PLT32 reloc aganst local symbol |
14207 | to section. Since PLT32 relocation must be against symbols, | |
14208 | turn such PLT32 relocation into PC32 relocation. */ | |
14209 | if (fixp->fx_addsy | |
14210 | && (fixp->fx_r_type == BFD_RELOC_386_PLT32 | |
14211 | || fixp->fx_r_type == BFD_RELOC_X86_64_PLT32) | |
14212 | && symbol_section_p (fixp->fx_addsy)) | |
14213 | fixp->fx_r_type = BFD_RELOC_32_PCREL; | |
14214 | if (!object_64bit) | |
14215 | { | |
14216 | if (fixp->fx_r_type == BFD_RELOC_386_GOT32 | |
14217 | && fixp->fx_tcbit2) | |
14218 | fixp->fx_r_type = BFD_RELOC_386_GOT32X; | |
14219 | } | |
02a86693 L |
14220 | } |
14221 | #endif | |
3abbafc2 JB |
14222 | |
14223 | return 1; | |
252b5132 RH |
14224 | } |
14225 | ||
252b5132 | 14226 | arelent * |
7016a5d5 | 14227 | tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp) |
252b5132 RH |
14228 | { |
14229 | arelent *rel; | |
14230 | bfd_reloc_code_real_type code; | |
14231 | ||
14232 | switch (fixp->fx_r_type) | |
14233 | { | |
8ce3d284 | 14234 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
3abbafc2 JB |
14235 | symbolS *sym; |
14236 | ||
8fd4256d L |
14237 | case BFD_RELOC_SIZE32: |
14238 | case BFD_RELOC_SIZE64: | |
3abbafc2 JB |
14239 | if (fixp->fx_addsy |
14240 | && !bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_addsy)) | |
14241 | && (!fixp->fx_subsy | |
14242 | || bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_subsy)))) | |
14243 | sym = fixp->fx_addsy; | |
14244 | else if (fixp->fx_subsy | |
14245 | && !bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_subsy)) | |
14246 | && (!fixp->fx_addsy | |
14247 | || bfd_is_abs_section (S_GET_SEGMENT (fixp->fx_addsy)))) | |
14248 | sym = fixp->fx_subsy; | |
14249 | else | |
14250 | sym = NULL; | |
14251 | if (IS_ELF && sym && S_IS_DEFINED (sym) && !S_IS_EXTERNAL (sym)) | |
8fd4256d L |
14252 | { |
14253 | /* Resolve size relocation against local symbol to size of | |
14254 | the symbol plus addend. */ | |
3abbafc2 | 14255 | valueT value = S_GET_SIZE (sym); |
44f87162 | 14256 | |
3abbafc2 JB |
14257 | if (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) |
14258 | value = bfd_section_size (S_GET_SEGMENT (sym)); | |
14259 | if (sym == fixp->fx_subsy) | |
14260 | { | |
14261 | value = -value; | |
14262 | if (fixp->fx_addsy) | |
14263 | value += S_GET_VALUE (fixp->fx_addsy); | |
14264 | } | |
14265 | else if (fixp->fx_subsy) | |
14266 | value -= S_GET_VALUE (fixp->fx_subsy); | |
44f87162 | 14267 | value += fixp->fx_offset; |
8fd4256d | 14268 | if (fixp->fx_r_type == BFD_RELOC_SIZE32 |
d965814f | 14269 | && object_64bit |
8fd4256d L |
14270 | && !fits_in_unsigned_long (value)) |
14271 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14272 | _("symbol size computation overflow")); | |
14273 | fixp->fx_addsy = NULL; | |
14274 | fixp->fx_subsy = NULL; | |
14275 | md_apply_fix (fixp, (valueT *) &value, NULL); | |
14276 | return NULL; | |
14277 | } | |
3abbafc2 JB |
14278 | if (!fixp->fx_addsy || fixp->fx_subsy) |
14279 | { | |
14280 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14281 | "unsupported expression involving @size"); | |
14282 | return NULL; | |
14283 | } | |
8ce3d284 | 14284 | #endif |
1a0670f3 | 14285 | /* Fall through. */ |
8fd4256d | 14286 | |
3e73aa7c JH |
14287 | case BFD_RELOC_X86_64_PLT32: |
14288 | case BFD_RELOC_X86_64_GOT32: | |
14289 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
14290 | case BFD_RELOC_X86_64_GOTPCRELX: |
14291 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
252b5132 RH |
14292 | case BFD_RELOC_386_PLT32: |
14293 | case BFD_RELOC_386_GOT32: | |
02a86693 | 14294 | case BFD_RELOC_386_GOT32X: |
252b5132 RH |
14295 | case BFD_RELOC_386_GOTOFF: |
14296 | case BFD_RELOC_386_GOTPC: | |
13ae64f3 JJ |
14297 | case BFD_RELOC_386_TLS_GD: |
14298 | case BFD_RELOC_386_TLS_LDM: | |
14299 | case BFD_RELOC_386_TLS_LDO_32: | |
14300 | case BFD_RELOC_386_TLS_IE_32: | |
37e55690 JJ |
14301 | case BFD_RELOC_386_TLS_IE: |
14302 | case BFD_RELOC_386_TLS_GOTIE: | |
13ae64f3 JJ |
14303 | case BFD_RELOC_386_TLS_LE_32: |
14304 | case BFD_RELOC_386_TLS_LE: | |
67a4f2b7 AO |
14305 | case BFD_RELOC_386_TLS_GOTDESC: |
14306 | case BFD_RELOC_386_TLS_DESC_CALL: | |
bffbf940 JJ |
14307 | case BFD_RELOC_X86_64_TLSGD: |
14308 | case BFD_RELOC_X86_64_TLSLD: | |
14309 | case BFD_RELOC_X86_64_DTPOFF32: | |
d6ab8113 | 14310 | case BFD_RELOC_X86_64_DTPOFF64: |
bffbf940 JJ |
14311 | case BFD_RELOC_X86_64_GOTTPOFF: |
14312 | case BFD_RELOC_X86_64_TPOFF32: | |
d6ab8113 JB |
14313 | case BFD_RELOC_X86_64_TPOFF64: |
14314 | case BFD_RELOC_X86_64_GOTOFF64: | |
14315 | case BFD_RELOC_X86_64_GOTPC32: | |
7b81dfbb AJ |
14316 | case BFD_RELOC_X86_64_GOT64: |
14317 | case BFD_RELOC_X86_64_GOTPCREL64: | |
14318 | case BFD_RELOC_X86_64_GOTPC64: | |
14319 | case BFD_RELOC_X86_64_GOTPLT64: | |
14320 | case BFD_RELOC_X86_64_PLTOFF64: | |
67a4f2b7 AO |
14321 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
14322 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
252b5132 RH |
14323 | case BFD_RELOC_RVA: |
14324 | case BFD_RELOC_VTABLE_ENTRY: | |
14325 | case BFD_RELOC_VTABLE_INHERIT: | |
6482c264 NC |
14326 | #ifdef TE_PE |
14327 | case BFD_RELOC_32_SECREL: | |
145667f8 | 14328 | case BFD_RELOC_16_SECIDX: |
6482c264 | 14329 | #endif |
252b5132 RH |
14330 | code = fixp->fx_r_type; |
14331 | break; | |
dbbaec26 L |
14332 | case BFD_RELOC_X86_64_32S: |
14333 | if (!fixp->fx_pcrel) | |
14334 | { | |
14335 | /* Don't turn BFD_RELOC_X86_64_32S into BFD_RELOC_32. */ | |
14336 | code = fixp->fx_r_type; | |
14337 | break; | |
14338 | } | |
1a0670f3 | 14339 | /* Fall through. */ |
252b5132 | 14340 | default: |
93382f6d | 14341 | if (fixp->fx_pcrel) |
252b5132 | 14342 | { |
93382f6d AM |
14343 | switch (fixp->fx_size) |
14344 | { | |
14345 | default: | |
b091f402 AM |
14346 | as_bad_where (fixp->fx_file, fixp->fx_line, |
14347 | _("can not do %d byte pc-relative relocation"), | |
14348 | fixp->fx_size); | |
93382f6d AM |
14349 | code = BFD_RELOC_32_PCREL; |
14350 | break; | |
14351 | case 1: code = BFD_RELOC_8_PCREL; break; | |
14352 | case 2: code = BFD_RELOC_16_PCREL; break; | |
d258b828 | 14353 | case 4: code = BFD_RELOC_32_PCREL; break; |
d6ab8113 JB |
14354 | #ifdef BFD64 |
14355 | case 8: code = BFD_RELOC_64_PCREL; break; | |
14356 | #endif | |
93382f6d AM |
14357 | } |
14358 | } | |
14359 | else | |
14360 | { | |
14361 | switch (fixp->fx_size) | |
14362 | { | |
14363 | default: | |
b091f402 AM |
14364 | as_bad_where (fixp->fx_file, fixp->fx_line, |
14365 | _("can not do %d byte relocation"), | |
14366 | fixp->fx_size); | |
93382f6d AM |
14367 | code = BFD_RELOC_32; |
14368 | break; | |
14369 | case 1: code = BFD_RELOC_8; break; | |
14370 | case 2: code = BFD_RELOC_16; break; | |
14371 | case 4: code = BFD_RELOC_32; break; | |
937149dd | 14372 | #ifdef BFD64 |
3e73aa7c | 14373 | case 8: code = BFD_RELOC_64; break; |
937149dd | 14374 | #endif |
93382f6d | 14375 | } |
252b5132 RH |
14376 | } |
14377 | break; | |
14378 | } | |
252b5132 | 14379 | |
d182319b JB |
14380 | if ((code == BFD_RELOC_32 |
14381 | || code == BFD_RELOC_32_PCREL | |
14382 | || code == BFD_RELOC_X86_64_32S) | |
252b5132 RH |
14383 | && GOT_symbol |
14384 | && fixp->fx_addsy == GOT_symbol) | |
3e73aa7c | 14385 | { |
4fa24527 | 14386 | if (!object_64bit) |
d6ab8113 JB |
14387 | code = BFD_RELOC_386_GOTPC; |
14388 | else | |
14389 | code = BFD_RELOC_X86_64_GOTPC32; | |
3e73aa7c | 14390 | } |
7b81dfbb AJ |
14391 | if ((code == BFD_RELOC_64 || code == BFD_RELOC_64_PCREL) |
14392 | && GOT_symbol | |
14393 | && fixp->fx_addsy == GOT_symbol) | |
14394 | { | |
14395 | code = BFD_RELOC_X86_64_GOTPC64; | |
14396 | } | |
252b5132 | 14397 | |
add39d23 TS |
14398 | rel = XNEW (arelent); |
14399 | rel->sym_ptr_ptr = XNEW (asymbol *); | |
49309057 | 14400 | *rel->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
252b5132 RH |
14401 | |
14402 | rel->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
c87db184 | 14403 | |
3e73aa7c JH |
14404 | if (!use_rela_relocations) |
14405 | { | |
14406 | /* HACK: Since i386 ELF uses Rel instead of Rela, encode the | |
14407 | vtable entry to be used in the relocation's section offset. */ | |
14408 | if (fixp->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
14409 | rel->address = fixp->fx_offset; | |
fbeb56a4 DK |
14410 | #if defined (OBJ_COFF) && defined (TE_PE) |
14411 | else if (fixp->fx_addsy && S_IS_WEAK (fixp->fx_addsy)) | |
14412 | rel->addend = fixp->fx_addnumber - (S_GET_VALUE (fixp->fx_addsy) * 2); | |
14413 | else | |
14414 | #endif | |
c6682705 | 14415 | rel->addend = 0; |
3e73aa7c JH |
14416 | } |
14417 | /* Use the rela in 64bit mode. */ | |
252b5132 | 14418 | else |
3e73aa7c | 14419 | { |
862be3fb L |
14420 | if (disallow_64bit_reloc) |
14421 | switch (code) | |
14422 | { | |
862be3fb L |
14423 | case BFD_RELOC_X86_64_DTPOFF64: |
14424 | case BFD_RELOC_X86_64_TPOFF64: | |
14425 | case BFD_RELOC_64_PCREL: | |
14426 | case BFD_RELOC_X86_64_GOTOFF64: | |
14427 | case BFD_RELOC_X86_64_GOT64: | |
14428 | case BFD_RELOC_X86_64_GOTPCREL64: | |
14429 | case BFD_RELOC_X86_64_GOTPC64: | |
14430 | case BFD_RELOC_X86_64_GOTPLT64: | |
14431 | case BFD_RELOC_X86_64_PLTOFF64: | |
14432 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
14433 | _("cannot represent relocation type %s in x32 mode"), | |
14434 | bfd_get_reloc_code_name (code)); | |
14435 | break; | |
14436 | default: | |
14437 | break; | |
14438 | } | |
14439 | ||
062cd5e7 AS |
14440 | if (!fixp->fx_pcrel) |
14441 | rel->addend = fixp->fx_offset; | |
14442 | else | |
14443 | switch (code) | |
14444 | { | |
14445 | case BFD_RELOC_X86_64_PLT32: | |
14446 | case BFD_RELOC_X86_64_GOT32: | |
14447 | case BFD_RELOC_X86_64_GOTPCREL: | |
56ceb5b5 L |
14448 | case BFD_RELOC_X86_64_GOTPCRELX: |
14449 | case BFD_RELOC_X86_64_REX_GOTPCRELX: | |
bffbf940 JJ |
14450 | case BFD_RELOC_X86_64_TLSGD: |
14451 | case BFD_RELOC_X86_64_TLSLD: | |
14452 | case BFD_RELOC_X86_64_GOTTPOFF: | |
67a4f2b7 AO |
14453 | case BFD_RELOC_X86_64_GOTPC32_TLSDESC: |
14454 | case BFD_RELOC_X86_64_TLSDESC_CALL: | |
062cd5e7 AS |
14455 | rel->addend = fixp->fx_offset - fixp->fx_size; |
14456 | break; | |
14457 | default: | |
14458 | rel->addend = (section->vma | |
14459 | - fixp->fx_size | |
14460 | + fixp->fx_addnumber | |
14461 | + md_pcrel_from (fixp)); | |
14462 | break; | |
14463 | } | |
3e73aa7c JH |
14464 | } |
14465 | ||
252b5132 RH |
14466 | rel->howto = bfd_reloc_type_lookup (stdoutput, code); |
14467 | if (rel->howto == NULL) | |
14468 | { | |
14469 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
d0b47220 | 14470 | _("cannot represent relocation type %s"), |
252b5132 RH |
14471 | bfd_get_reloc_code_name (code)); |
14472 | /* Set howto to a garbage value so that we can keep going. */ | |
14473 | rel->howto = bfd_reloc_type_lookup (stdoutput, BFD_RELOC_32); | |
9c2799c2 | 14474 | gas_assert (rel->howto != NULL); |
252b5132 RH |
14475 | } |
14476 | ||
14477 | return rel; | |
14478 | } | |
14479 | ||
ee86248c | 14480 | #include "tc-i386-intel.c" |
54cfded0 | 14481 | |
a60de03c JB |
14482 | void |
14483 | tc_x86_parse_to_dw2regnum (expressionS *exp) | |
54cfded0 | 14484 | { |
a60de03c JB |
14485 | int saved_naked_reg; |
14486 | char saved_register_dot; | |
54cfded0 | 14487 | |
a60de03c JB |
14488 | saved_naked_reg = allow_naked_reg; |
14489 | allow_naked_reg = 1; | |
14490 | saved_register_dot = register_chars['.']; | |
14491 | register_chars['.'] = '.'; | |
14492 | allow_pseudo_reg = 1; | |
14493 | expression_and_evaluate (exp); | |
14494 | allow_pseudo_reg = 0; | |
14495 | register_chars['.'] = saved_register_dot; | |
14496 | allow_naked_reg = saved_naked_reg; | |
14497 | ||
e96d56a1 | 14498 | if (exp->X_op == O_register && exp->X_add_number >= 0) |
54cfded0 | 14499 | { |
a60de03c JB |
14500 | if ((addressT) exp->X_add_number < i386_regtab_size) |
14501 | { | |
14502 | exp->X_op = O_constant; | |
14503 | exp->X_add_number = i386_regtab[exp->X_add_number] | |
14504 | .dw2_regnum[flag_code >> 1]; | |
14505 | } | |
14506 | else | |
14507 | exp->X_op = O_illegal; | |
54cfded0 | 14508 | } |
54cfded0 AM |
14509 | } |
14510 | ||
14511 | void | |
14512 | tc_x86_frame_initial_instructions (void) | |
14513 | { | |
a60de03c JB |
14514 | static unsigned int sp_regno[2]; |
14515 | ||
14516 | if (!sp_regno[flag_code >> 1]) | |
14517 | { | |
14518 | char *saved_input = input_line_pointer; | |
14519 | char sp[][4] = {"esp", "rsp"}; | |
14520 | expressionS exp; | |
a4447b93 | 14521 | |
a60de03c JB |
14522 | input_line_pointer = sp[flag_code >> 1]; |
14523 | tc_x86_parse_to_dw2regnum (&exp); | |
9c2799c2 | 14524 | gas_assert (exp.X_op == O_constant); |
a60de03c JB |
14525 | sp_regno[flag_code >> 1] = exp.X_add_number; |
14526 | input_line_pointer = saved_input; | |
14527 | } | |
a4447b93 | 14528 | |
61ff971f L |
14529 | cfi_add_CFA_def_cfa (sp_regno[flag_code >> 1], -x86_cie_data_alignment); |
14530 | cfi_add_CFA_offset (x86_dwarf2_return_column, x86_cie_data_alignment); | |
54cfded0 | 14531 | } |
d2b2c203 | 14532 | |
d7921315 L |
14533 | int |
14534 | x86_dwarf2_addr_size (void) | |
14535 | { | |
14536 | #if defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF) | |
14537 | if (x86_elf_abi == X86_64_X32_ABI) | |
14538 | return 4; | |
14539 | #endif | |
14540 | return bfd_arch_bits_per_address (stdoutput) / 8; | |
14541 | } | |
14542 | ||
d2b2c203 DJ |
14543 | int |
14544 | i386_elf_section_type (const char *str, size_t len) | |
14545 | { | |
14546 | if (flag_code == CODE_64BIT | |
14547 | && len == sizeof ("unwind") - 1 | |
d34049e8 | 14548 | && startswith (str, "unwind")) |
d2b2c203 DJ |
14549 | return SHT_X86_64_UNWIND; |
14550 | ||
14551 | return -1; | |
14552 | } | |
bb41ade5 | 14553 | |
ad5fec3b EB |
14554 | #ifdef TE_SOLARIS |
14555 | void | |
14556 | i386_solaris_fix_up_eh_frame (segT sec) | |
14557 | { | |
14558 | if (flag_code == CODE_64BIT) | |
14559 | elf_section_type (sec) = SHT_X86_64_UNWIND; | |
14560 | } | |
14561 | #endif | |
14562 | ||
bb41ade5 AM |
14563 | #ifdef TE_PE |
14564 | void | |
14565 | tc_pe_dwarf2_emit_offset (symbolS *symbol, unsigned int size) | |
14566 | { | |
91d6fa6a | 14567 | expressionS exp; |
bb41ade5 | 14568 | |
91d6fa6a NC |
14569 | exp.X_op = O_secrel; |
14570 | exp.X_add_symbol = symbol; | |
14571 | exp.X_add_number = 0; | |
14572 | emit_expr (&exp, size); | |
bb41ade5 AM |
14573 | } |
14574 | #endif | |
3b22753a L |
14575 | |
14576 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) | |
14577 | /* For ELF on x86-64, add support for SHF_X86_64_LARGE. */ | |
14578 | ||
01e1a5bc | 14579 | bfd_vma |
6d4af3c2 | 14580 | x86_64_section_letter (int letter, const char **ptr_msg) |
3b22753a L |
14581 | { |
14582 | if (flag_code == CODE_64BIT) | |
14583 | { | |
14584 | if (letter == 'l') | |
14585 | return SHF_X86_64_LARGE; | |
14586 | ||
8f3bae45 | 14587 | *ptr_msg = _("bad .section directive: want a,l,w,x,M,S,G,T in string"); |
64e74474 | 14588 | } |
3b22753a | 14589 | else |
8f3bae45 | 14590 | *ptr_msg = _("bad .section directive: want a,w,x,M,S,G,T in string"); |
3b22753a L |
14591 | return -1; |
14592 | } | |
14593 | ||
01e1a5bc | 14594 | bfd_vma |
3b22753a L |
14595 | x86_64_section_word (char *str, size_t len) |
14596 | { | |
08dedd66 | 14597 | if (len == 5 && flag_code == CODE_64BIT && startswith (str, "large")) |
3b22753a L |
14598 | return SHF_X86_64_LARGE; |
14599 | ||
14600 | return -1; | |
14601 | } | |
14602 | ||
14603 | static void | |
14604 | handle_large_common (int small ATTRIBUTE_UNUSED) | |
14605 | { | |
14606 | if (flag_code != CODE_64BIT) | |
14607 | { | |
14608 | s_comm_internal (0, elf_common_parse); | |
14609 | as_warn (_(".largecomm supported only in 64bit mode, producing .comm")); | |
14610 | } | |
14611 | else | |
14612 | { | |
14613 | static segT lbss_section; | |
14614 | asection *saved_com_section_ptr = elf_com_section_ptr; | |
14615 | asection *saved_bss_section = bss_section; | |
14616 | ||
14617 | if (lbss_section == NULL) | |
14618 | { | |
14619 | flagword applicable; | |
14620 | segT seg = now_seg; | |
14621 | subsegT subseg = now_subseg; | |
14622 | ||
14623 | /* The .lbss section is for local .largecomm symbols. */ | |
14624 | lbss_section = subseg_new (".lbss", 0); | |
14625 | applicable = bfd_applicable_section_flags (stdoutput); | |
fd361982 | 14626 | bfd_set_section_flags (lbss_section, applicable & SEC_ALLOC); |
3b22753a L |
14627 | seg_info (lbss_section)->bss = 1; |
14628 | ||
14629 | subseg_set (seg, subseg); | |
14630 | } | |
14631 | ||
14632 | elf_com_section_ptr = &_bfd_elf_large_com_section; | |
14633 | bss_section = lbss_section; | |
14634 | ||
14635 | s_comm_internal (0, elf_common_parse); | |
14636 | ||
14637 | elf_com_section_ptr = saved_com_section_ptr; | |
14638 | bss_section = saved_bss_section; | |
14639 | } | |
14640 | } | |
14641 | #endif /* OBJ_ELF || OBJ_MAYBE_ELF */ |