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252b5132 1/* tc-i386.h -- Header file for tc-i386.c
250d07de 2 Copyright (C) 1989-2021 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)
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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
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18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
19 02110-1301, USA. */
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20
21#ifndef TC_I386
22#define TC_I386 1
23
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24#include "opcodes/i386-opc.h"
25
252b5132 26struct fix;
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27
28#define TARGET_BYTES_BIG_ENDIAN 0
29
8a9036a4 30#define TARGET_ARCH (i386_arch ())
b9d79e03 31#define TARGET_MACH (i386_mach ())
8a9036a4 32extern enum bfd_architecture i386_arch (void);
b7c92712 33extern unsigned long i386_mach (void);
252b5132 34
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35#ifdef TE_FreeBSD
36#define AOUT_TARGET_FORMAT "a.out-i386-freebsd"
37#endif
252b5132 38#ifdef TE_NetBSD
4c63da97 39#define AOUT_TARGET_FORMAT "a.out-i386-netbsd"
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40#endif
41#ifdef TE_386BSD
4c63da97 42#define AOUT_TARGET_FORMAT "a.out-i386-bsd"
252b5132
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43#endif
44#ifdef TE_LINUX
4c63da97 45#define AOUT_TARGET_FORMAT "a.out-i386-linux"
252b5132
RH
46#endif
47#ifdef TE_Mach
4c63da97 48#define AOUT_TARGET_FORMAT "a.out-mach3"
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49#endif
50#ifdef TE_DYNIX
4c63da97 51#define AOUT_TARGET_FORMAT "a.out-i386-dynix"
252b5132 52#endif
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AM
53#ifndef AOUT_TARGET_FORMAT
54#define AOUT_TARGET_FORMAT "a.out-i386"
252b5132 55#endif
252b5132 56
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57#ifdef TE_FreeBSD
58#define ELF_TARGET_FORMAT "elf32-i386-freebsd"
9d7cbccd 59#define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd"
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PB
60#elif defined (TE_VXWORKS)
61#define ELF_TARGET_FORMAT "elf32-i386-vxworks"
12400dcc
AM
62#elif defined TE_CLOUDABI
63#define ELF_TARGET_FORMAT64 "elf64-x86-64-cloudabi"
4ada7262 64#endif
eac338cf 65
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66#ifdef TE_SOLARIS
67#define ELF_TARGET_FORMAT "elf32-i386-sol2"
68#define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2"
69#endif
70
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71#ifndef ELF_TARGET_FORMAT
72#define ELF_TARGET_FORMAT "elf32-i386"
73#endif
74
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75#ifndef ELF_TARGET_FORMAT64
76#define ELF_TARGET_FORMAT64 "elf64-x86-64"
77#endif
78
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79#ifndef ELF_TARGET_FORMAT32
80#define ELF_TARGET_FORMAT32 "elf32-x86-64"
81#endif
82
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83#ifndef ELF_TARGET_L1OM_FORMAT
84#define ELF_TARGET_L1OM_FORMAT "elf64-l1om"
85#endif
86
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87#ifndef ELF_TARGET_K1OM_FORMAT
88#define ELF_TARGET_K1OM_FORMAT "elf64-k1om"
89#endif
90
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91#ifndef ELF_TARGET_IAMCU_FORMAT
92#define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu"
93#endif
94
3e73aa7c 95#if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
321098a5 96 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
e57f8c65 97 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
e3bb37b5 98extern const char *i386_target_format (void);
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99#define TARGET_FORMAT i386_target_format ()
100#else
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101#ifdef TE_GO32
102#define TARGET_FORMAT "coff-go32"
103#endif
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104#ifdef OBJ_AOUT
105#define TARGET_FORMAT AOUT_TARGET_FORMAT
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106#endif
107#endif
108
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109#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
110
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111/* '$' may be used as immediate prefix. */
112#undef LOCAL_LABELS_DOLLAR
113#define LOCAL_LABELS_DOLLAR 0
114#undef LOCAL_LABELS_FB
6088b00e 115#define LOCAL_LABELS_FB 1
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116
117extern const char extra_symbol_chars[];
118#define tc_symbol_chars extra_symbol_chars
119
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120extern const char *i386_comment_chars;
121#define tc_comment_chars i386_comment_chars
122
252b5132 123/* The name of the global offset table generated by the compiler. Allow
4a4f25cf 124 this to be overridden if need be. */
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125#ifndef GLOBAL_OFFSET_TABLE_NAME
126#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
127#endif
128
718ddfc0 129#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT)
6088b00e 130#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
d182319b 131#endif
62ebcb5c 132extern bfd_reloc_code_real_type x86_cons (expressionS *, int);
6088b00e 133
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134#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
135 x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC)
6088b00e 136extern void x86_cons_fix_new
62ebcb5c 137(fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type);
6088b00e 138
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139#define TC_ADDRESS_BYTES x86_address_bytes
140extern int x86_address_bytes (void);
141
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142#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
143
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144#define NO_RELOC BFD_RELOC_NONE
145
e3bb37b5 146void i386_validate_fix (struct fix *);
a161fe53 147#define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX)
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148
149#define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
e3bb37b5 150extern int tc_i386_fix_adjustable (struct fix *);
6088b00e 151
55cf6793 152/* Values passed to md_apply_fix don't include the symbol value. */
a161fe53 153#define MD_APPLY_SYM_VALUE(FIX) 0
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154
155/* ELF wants external syms kept, as does PE COFF. */
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AM
156#if defined (TE_PE) && defined (STRICT_PE_FORMAT)
157#define EXTERN_FORCE_RELOC \
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158 (OUTPUT_FLAVOR == bfd_target_elf_flavour \
159 || OUTPUT_FLAVOR == bfd_target_coff_flavour)
160#else
161#define EXTERN_FORCE_RELOC \
162 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
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163#endif
164
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AM
165/* This expression evaluates to true if the relocation is for a local
166 object for which we still want to do the relocation at runtime.
167 False if we are willing to perform this relocation while building
8d63c93e 168 the .o file. GOTOFF and GOT32 do not need to be checked here because
2a86604a 169 they are not pcrel. .*/
6088b00e 170
56ceb5b5 171#define TC_FORCE_RELOCATION_LOCAL(FIX) \
91cb9803 172 (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
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L
173 || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \
174 || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \
9f52eab6 175 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \
56ceb5b5 176 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \
91cb9803 177 || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
6088b00e 178
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L
179#define TC_FORCE_RELOCATION_ABS(FIX) \
180 (TC_FORCE_RELOCATION (FIX) \
181 || (FIX)->fx_r_type == BFD_RELOC_386_GOT32 \
182 || (FIX)->fx_r_type == BFD_RELOC_386_GOT32X \
183 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \
184 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \
185 || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
186
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187extern int i386_parse_name (char *, expressionS *, char *);
188#define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
252b5132 189
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190extern operatorT i386_operator (const char *name, unsigned int operands, char *);
191#define md_operator i386_operator
192
193extern int i386_need_index_operator (void);
194#define md_need_index_operator i386_need_index_operator
195
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196#define md_register_arithmetic 0
197
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198extern const struct relax_type md_relax_table[];
199#define TC_GENERIC_RELAX_TABLE md_relax_table
200
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201extern int optimize_align_code;
202
252b5132 203#define md_do_align(n, fill, len, max, around) \
12b55ccc
L
204if ((n) \
205 && !need_pass_2 \
206 && optimize_align_code \
207 && (!(fill) \
208 || ((char)*(fill) == (char)0x90 && (len) == 1)) \
b9e57a38 209 && subseg_text_p (now_seg)) \
252b5132 210 { \
0a9ef439 211 frag_align_code ((n), (max)); \
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212 goto around; \
213 }
214
db222310 215#define MAX_MEM_FOR_RS_ALIGN_CODE (alignment ? ((1 << alignment) - 1) : 1)
252b5132 216
e379e5f3
L
217extern void i386_cons_align (int);
218#define md_cons_align(nbytes) i386_cons_align (nbytes)
219
e3bb37b5 220void i386_print_statistics (FILE *);
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221#define tc_print_statistics i386_print_statistics
222
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223extern unsigned int i386_frag_max_var (fragS *);
224#define md_frag_max_var i386_frag_max_var
225
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L
226extern long i386_generic_table_relax_frag (segT, fragS *, long);
227#define md_generic_table_relax_frag(segment, fragP, stretch) \
228 i386_generic_table_relax_frag (segment, fragP, stretch)
229
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230#define md_number_to_chars number_to_chars_littleendian
231
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232enum processor_type
233{
234 PROCESSOR_UNKNOWN,
235 PROCESSOR_I386,
236 PROCESSOR_I486,
237 PROCESSOR_PENTIUM,
238 PROCESSOR_PENTIUMPRO,
239 PROCESSOR_PENTIUM4,
240 PROCESSOR_NOCONA,
241 PROCESSOR_CORE,
242 PROCESSOR_CORE2,
bd5295b2 243 PROCESSOR_COREI7,
3632d14b 244 PROCESSOR_L1OM,
7a9068fe 245 PROCESSOR_K1OM,
81486035 246 PROCESSOR_IAMCU,
fbf3f584
L
247 PROCESSOR_K6,
248 PROCESSOR_ATHLON,
249 PROCESSOR_K8,
250 PROCESSOR_GENERIC32,
251 PROCESSOR_GENERIC64,
69dd9865 252 PROCESSOR_AMDFAM10,
7b458c12 253 PROCESSOR_BD,
029f3522 254 PROCESSOR_ZNVER,
7b458c12 255 PROCESSOR_BT
fbf3f584
L
256};
257
258extern enum processor_type cpu_arch_tune;
259extern enum processor_type cpu_arch_isa;
260extern i386_cpu_flags cpu_arch_isa_flags;
261
262struct i386_tc_frag_data
263{
e379e5f3
L
264 union
265 {
266 fragS *padding_fragP;
267 fragS *branch_fragP;
268 } u;
269 addressT padding_address;
fbf3f584
L
270 enum processor_type isa;
271 i386_cpu_flags isa_flags;
272 enum processor_type tune;
db222310 273 unsigned int max_bytes;
e379e5f3
L
274 unsigned char length;
275 unsigned char last_length;
276 unsigned char max_prefix_length;
277 unsigned char prefix_length;
278 unsigned char default_prefix;
279 unsigned char cmp_size;
79d72f45 280 unsigned int mf_type : 3;
e379e5f3
L
281 unsigned int classified : 1;
282 unsigned int branch_type : 3;
fbf3f584
L
283};
284
285/* We need to emit the right NOP pattern in .align frags. This is
286 done after the text-to-bits assembly pass, so we need to mark it with
287 the isa/tune settings at the time the .align was assembled. */
288#define TC_FRAG_TYPE struct i386_tc_frag_data
289
db222310 290#define TC_FRAG_INIT(FRAGP, MAX_BYTES) \
fbf3f584
L
291 do \
292 { \
e379e5f3
L
293 (FRAGP)->tc_frag_data.u.padding_fragP = NULL; \
294 (FRAGP)->tc_frag_data.padding_address = 0; \
fbf3f584
L
295 (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
296 (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \
297 (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
db222310 298 (FRAGP)->tc_frag_data.max_bytes = (MAX_BYTES); \
e379e5f3
L
299 (FRAGP)->tc_frag_data.length = 0; \
300 (FRAGP)->tc_frag_data.last_length = 0; \
301 (FRAGP)->tc_frag_data.max_prefix_length = 0; \
302 (FRAGP)->tc_frag_data.prefix_length = 0; \
303 (FRAGP)->tc_frag_data.default_prefix = 0; \
304 (FRAGP)->tc_frag_data.cmp_size = 0; \
305 (FRAGP)->tc_frag_data.classified = 0; \
306 (FRAGP)->tc_frag_data.branch_type = 0; \
79d72f45 307 (FRAGP)->tc_frag_data.mf_type = 0; \
fbf3f584
L
308 } \
309 while (0)
310
b1b7d09b
AM
311#define WORKING_DOT_WORD 1
312
62a02d25
L
313/* How to generate NOPs for .nop direct directive. */
314extern void i386_generate_nops (fragS *, char *, offsetT, int);
315#define md_generate_nops(frag, where, amount, control) \
316 i386_generate_nops ((frag), (where), (amount), (control))
317
3ae729d5
L
318#define HANDLE_ALIGN(fragP) \
319if (fragP->fr_type == rs_align_code) \
320 { \
321 offsetT __count = (fragP->fr_next->fr_address \
322 - fragP->fr_address \
323 - fragP->fr_fix); \
db222310
L
324 if (__count > 0 \
325 && (unsigned int) __count <= fragP->tc_frag_data.max_bytes) \
3ae729d5
L
326 md_generate_nops (fragP, fragP->fr_literal + fragP->fr_fix, \
327 __count, 0); \
328 }
329
54cfded0 330/* We want .cfi_* pseudo-ops for generating unwind info. */
a4447b93 331#define TARGET_USE_CFIPOP 1
54cfded0 332
a4447b93
RH
333extern unsigned int x86_dwarf2_return_column;
334#define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
335
336extern int x86_cie_data_alignment;
337#define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
54cfded0 338
d7921315
L
339extern int x86_dwarf2_addr_size (void);
340#define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size ()
341
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JB
342#define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
343extern void tc_x86_parse_to_dw2regnum (expressionS *);
54cfded0
AM
344
345#define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
e3bb37b5 346extern void tc_x86_frame_initial_instructions (void);
54cfded0 347
d2b2c203 348#define md_elf_section_type(str,len) i386_elf_section_type (str, len)
e3bb37b5 349extern int i386_elf_section_type (const char *, size_t);
d2b2c203 350
ad5fec3b
EB
351#ifdef TE_SOLARIS
352#define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
353extern void i386_solaris_fix_up_eh_frame (segT);
354#endif
355
3b22753a 356/* Support for SHF_X86_64_LARGE */
01e1a5bc 357extern bfd_vma x86_64_section_word (char *, size_t);
6d4af3c2 358extern bfd_vma x86_64_section_letter (int, const char **);
3b22753a
L
359#define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG)
360#define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN)
361
b4a3a7b4
L
362#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
363extern void x86_cleanup (void);
364#define md_cleanup() x86_cleanup ()
365#endif
366
bb41ade5
AM
367#ifdef TE_PE
368
369#define O_secrel O_md1
370
371#define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
372void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
373
374#endif /* TE_PE */
375
ee86248c
JB
376/* X_add_symbol:X_op_symbol (Intel mode only) */
377#define O_full_ptr O_md2
378
cdaa5616
IS
379#ifdef OBJ_MACH_O
380
381#define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX))
382
383#define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \
384 (obj_mach_o_force_reloc_sub_same (FIX, SEG))
385
386#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \
387 (obj_mach_o_force_reloc_sub_local (FIX, SEG))
388
389#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
390
391#endif /* OBJ_MACH_O */
392
6088b00e 393#endif /* TC_I386 */