Commit | Line | Data |
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252b5132 | 1 | /* tc-i386.h -- Header file for tc-i386.c |
b3adc24a | 2 | Copyright (C) 1989-2020 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 RH |
20 | |
21 | #ifndef TC_I386 | |
22 | #define TC_I386 1 | |
23 | ||
1d5f2fe9 L |
24 | #include "opcodes/i386-opc.h" |
25 | ||
252b5132 | 26 | struct fix; |
252b5132 RH |
27 | |
28 | #define TARGET_BYTES_BIG_ENDIAN 0 | |
29 | ||
8a9036a4 | 30 | #define TARGET_ARCH (i386_arch ()) |
b9d79e03 | 31 | #define TARGET_MACH (i386_mach ()) |
8a9036a4 | 32 | extern enum bfd_architecture i386_arch (void); |
b7c92712 | 33 | extern unsigned long i386_mach (void); |
252b5132 | 34 | |
cac5b87b DB |
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" |
252b5132 RH |
40 | #endif |
41 | #ifdef TE_386BSD | |
4c63da97 | 42 | #define AOUT_TARGET_FORMAT "a.out-i386-bsd" |
252b5132 RH |
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" |
252b5132 RH |
49 | #endif |
50 | #ifdef TE_DYNIX | |
4c63da97 | 51 | #define AOUT_TARGET_FORMAT "a.out-i386-dynix" |
252b5132 | 52 | #endif |
4c63da97 AM |
53 | #ifndef AOUT_TARGET_FORMAT |
54 | #define AOUT_TARGET_FORMAT "a.out-i386" | |
252b5132 | 55 | #endif |
252b5132 | 56 | |
4ada7262 DB |
57 | #ifdef TE_FreeBSD |
58 | #define ELF_TARGET_FORMAT "elf32-i386-freebsd" | |
9d7cbccd | 59 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd" |
eac338cf PB |
60 | #elif defined (TE_VXWORKS) |
61 | #define ELF_TARGET_FORMAT "elf32-i386-vxworks" | |
8d63c93e RM |
62 | #elif defined (TE_NACL) |
63 | #define ELF_TARGET_FORMAT "elf32-i386-nacl" | |
8059fb19 RM |
64 | #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl" |
65 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl" | |
12400dcc AM |
66 | #elif defined TE_CLOUDABI |
67 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-cloudabi" | |
4ada7262 | 68 | #endif |
eac338cf | 69 | |
40cf28aa RO |
70 | #ifdef TE_SOLARIS |
71 | #define ELF_TARGET_FORMAT "elf32-i386-sol2" | |
72 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2" | |
73 | #endif | |
74 | ||
4ada7262 DB |
75 | #ifndef ELF_TARGET_FORMAT |
76 | #define ELF_TARGET_FORMAT "elf32-i386" | |
77 | #endif | |
78 | ||
9d7cbccd NC |
79 | #ifndef ELF_TARGET_FORMAT64 |
80 | #define ELF_TARGET_FORMAT64 "elf64-x86-64" | |
81 | #endif | |
82 | ||
351f65ca L |
83 | #ifndef ELF_TARGET_FORMAT32 |
84 | #define ELF_TARGET_FORMAT32 "elf32-x86-64" | |
85 | #endif | |
86 | ||
8a9036a4 L |
87 | #ifndef ELF_TARGET_L1OM_FORMAT |
88 | #define ELF_TARGET_L1OM_FORMAT "elf64-l1om" | |
89 | #endif | |
90 | ||
7a9068fe L |
91 | #ifndef ELF_TARGET_K1OM_FORMAT |
92 | #define ELF_TARGET_K1OM_FORMAT "elf64-k1om" | |
93 | #endif | |
94 | ||
81486035 L |
95 | #ifndef ELF_TARGET_IAMCU_FORMAT |
96 | #define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu" | |
97 | #endif | |
98 | ||
3e73aa7c | 99 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
321098a5 | 100 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
e57f8c65 | 101 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
e3bb37b5 | 102 | extern const char *i386_target_format (void); |
4c63da97 AM |
103 | #define TARGET_FORMAT i386_target_format () |
104 | #else | |
0561d57c JK |
105 | #ifdef TE_GO32 |
106 | #define TARGET_FORMAT "coff-go32" | |
107 | #endif | |
4c63da97 AM |
108 | #ifdef OBJ_AOUT |
109 | #define TARGET_FORMAT AOUT_TARGET_FORMAT | |
252b5132 RH |
110 | #endif |
111 | #endif | |
112 | ||
18e1d487 AM |
113 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 |
114 | ||
f378cd83 L |
115 | /* '$' may be used as immediate prefix. */ |
116 | #undef LOCAL_LABELS_DOLLAR | |
117 | #define LOCAL_LABELS_DOLLAR 0 | |
118 | #undef LOCAL_LABELS_FB | |
6088b00e | 119 | #define LOCAL_LABELS_FB 1 |
252b5132 RH |
120 | |
121 | extern const char extra_symbol_chars[]; | |
122 | #define tc_symbol_chars extra_symbol_chars | |
123 | ||
b3b91714 AM |
124 | extern const char *i386_comment_chars; |
125 | #define tc_comment_chars i386_comment_chars | |
126 | ||
252b5132 | 127 | /* The name of the global offset table generated by the compiler. Allow |
4a4f25cf | 128 | this to be overridden if need be. */ |
252b5132 RH |
129 | #ifndef GLOBAL_OFFSET_TABLE_NAME |
130 | #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" | |
131 | #endif | |
132 | ||
718ddfc0 | 133 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) |
6088b00e | 134 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) |
d182319b | 135 | #endif |
62ebcb5c | 136 | extern bfd_reloc_code_real_type x86_cons (expressionS *, int); |
6088b00e | 137 | |
62ebcb5c AM |
138 | #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \ |
139 | x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC) | |
6088b00e | 140 | extern void x86_cons_fix_new |
62ebcb5c | 141 | (fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type); |
6088b00e | 142 | |
357d1bd8 L |
143 | #define TC_ADDRESS_BYTES x86_address_bytes |
144 | extern int x86_address_bytes (void); | |
145 | ||
6088b00e AM |
146 | #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ |
147 | ||
6088b00e AM |
148 | #define NO_RELOC BFD_RELOC_NONE |
149 | ||
e3bb37b5 | 150 | void i386_validate_fix (struct fix *); |
a161fe53 | 151 | #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX) |
6088b00e AM |
152 | |
153 | #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X) | |
e3bb37b5 | 154 | extern int tc_i386_fix_adjustable (struct fix *); |
6088b00e | 155 | |
55cf6793 | 156 | /* Values passed to md_apply_fix don't include the symbol value. */ |
a161fe53 | 157 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
3ca4bdc3 AM |
158 | |
159 | /* ELF wants external syms kept, as does PE COFF. */ | |
ae6063d4 AM |
160 | #if defined (TE_PE) && defined (STRICT_PE_FORMAT) |
161 | #define EXTERN_FORCE_RELOC \ | |
3ca4bdc3 AM |
162 | (OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
163 | || OUTPUT_FLAVOR == bfd_target_coff_flavour) | |
164 | #else | |
165 | #define EXTERN_FORCE_RELOC \ | |
166 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
252b5132 RH |
167 | #endif |
168 | ||
a161fe53 AM |
169 | /* This expression evaluates to true if the relocation is for a local |
170 | object for which we still want to do the relocation at runtime. | |
171 | False if we are willing to perform this relocation while building | |
8d63c93e | 172 | the .o file. GOTOFF and GOT32 do not need to be checked here because |
2a86604a | 173 | they are not pcrel. .*/ |
6088b00e | 174 | |
56ceb5b5 | 175 | #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
91cb9803 | 176 | (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \ |
56ceb5b5 L |
177 | || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ |
178 | || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ | |
9f52eab6 | 179 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \ |
56ceb5b5 | 180 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \ |
91cb9803 | 181 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX) |
6088b00e | 182 | |
4d1bb795 JB |
183 | extern int i386_parse_name (char *, expressionS *, char *); |
184 | #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) | |
252b5132 | 185 | |
ee86248c JB |
186 | extern operatorT i386_operator (const char *name, unsigned int operands, char *); |
187 | #define md_operator i386_operator | |
188 | ||
189 | extern int i386_need_index_operator (void); | |
190 | #define md_need_index_operator i386_need_index_operator | |
191 | ||
5a918ce7 JB |
192 | #define md_register_arithmetic 0 |
193 | ||
252b5132 RH |
194 | extern const struct relax_type md_relax_table[]; |
195 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
196 | ||
12b55ccc L |
197 | extern int optimize_align_code; |
198 | ||
252b5132 | 199 | #define md_do_align(n, fill, len, max, around) \ |
12b55ccc L |
200 | if ((n) \ |
201 | && !need_pass_2 \ | |
202 | && optimize_align_code \ | |
203 | && (!(fill) \ | |
204 | || ((char)*(fill) == (char)0x90 && (len) == 1)) \ | |
b9e57a38 | 205 | && subseg_text_p (now_seg)) \ |
252b5132 | 206 | { \ |
0a9ef439 | 207 | frag_align_code ((n), (max)); \ |
252b5132 RH |
208 | goto around; \ |
209 | } | |
210 | ||
db222310 | 211 | #define MAX_MEM_FOR_RS_ALIGN_CODE (alignment ? ((1 << alignment) - 1) : 1) |
252b5132 | 212 | |
e379e5f3 L |
213 | extern void i386_cons_align (int); |
214 | #define md_cons_align(nbytes) i386_cons_align (nbytes) | |
215 | ||
e3bb37b5 | 216 | void i386_print_statistics (FILE *); |
252b5132 RH |
217 | #define tc_print_statistics i386_print_statistics |
218 | ||
fa94de6b RM |
219 | extern unsigned int i386_frag_max_var (fragS *); |
220 | #define md_frag_max_var i386_frag_max_var | |
221 | ||
e379e5f3 L |
222 | extern long i386_generic_table_relax_frag (segT, fragS *, long); |
223 | #define md_generic_table_relax_frag(segment, fragP, stretch) \ | |
224 | i386_generic_table_relax_frag (segment, fragP, stretch) | |
225 | ||
252b5132 RH |
226 | #define md_number_to_chars number_to_chars_littleendian |
227 | ||
fbf3f584 L |
228 | enum processor_type |
229 | { | |
230 | PROCESSOR_UNKNOWN, | |
231 | PROCESSOR_I386, | |
232 | PROCESSOR_I486, | |
233 | PROCESSOR_PENTIUM, | |
234 | PROCESSOR_PENTIUMPRO, | |
235 | PROCESSOR_PENTIUM4, | |
236 | PROCESSOR_NOCONA, | |
237 | PROCESSOR_CORE, | |
238 | PROCESSOR_CORE2, | |
bd5295b2 | 239 | PROCESSOR_COREI7, |
3632d14b | 240 | PROCESSOR_L1OM, |
7a9068fe | 241 | PROCESSOR_K1OM, |
81486035 | 242 | PROCESSOR_IAMCU, |
fbf3f584 L |
243 | PROCESSOR_K6, |
244 | PROCESSOR_ATHLON, | |
245 | PROCESSOR_K8, | |
246 | PROCESSOR_GENERIC32, | |
247 | PROCESSOR_GENERIC64, | |
69dd9865 | 248 | PROCESSOR_AMDFAM10, |
7b458c12 | 249 | PROCESSOR_BD, |
029f3522 | 250 | PROCESSOR_ZNVER, |
7b458c12 | 251 | PROCESSOR_BT |
fbf3f584 L |
252 | }; |
253 | ||
254 | extern enum processor_type cpu_arch_tune; | |
255 | extern enum processor_type cpu_arch_isa; | |
256 | extern i386_cpu_flags cpu_arch_isa_flags; | |
257 | ||
258 | struct i386_tc_frag_data | |
259 | { | |
e379e5f3 L |
260 | union |
261 | { | |
262 | fragS *padding_fragP; | |
263 | fragS *branch_fragP; | |
264 | } u; | |
265 | addressT padding_address; | |
fbf3f584 L |
266 | enum processor_type isa; |
267 | i386_cpu_flags isa_flags; | |
268 | enum processor_type tune; | |
db222310 | 269 | unsigned int max_bytes; |
e379e5f3 L |
270 | unsigned char length; |
271 | unsigned char last_length; | |
272 | unsigned char max_prefix_length; | |
273 | unsigned char prefix_length; | |
274 | unsigned char default_prefix; | |
275 | unsigned char cmp_size; | |
276 | unsigned int classified : 1; | |
277 | unsigned int branch_type : 3; | |
fbf3f584 L |
278 | }; |
279 | ||
280 | /* We need to emit the right NOP pattern in .align frags. This is | |
281 | done after the text-to-bits assembly pass, so we need to mark it with | |
282 | the isa/tune settings at the time the .align was assembled. */ | |
283 | #define TC_FRAG_TYPE struct i386_tc_frag_data | |
284 | ||
db222310 | 285 | #define TC_FRAG_INIT(FRAGP, MAX_BYTES) \ |
fbf3f584 L |
286 | do \ |
287 | { \ | |
e379e5f3 L |
288 | (FRAGP)->tc_frag_data.u.padding_fragP = NULL; \ |
289 | (FRAGP)->tc_frag_data.padding_address = 0; \ | |
fbf3f584 L |
290 | (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \ |
291 | (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \ | |
292 | (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \ | |
db222310 | 293 | (FRAGP)->tc_frag_data.max_bytes = (MAX_BYTES); \ |
e379e5f3 L |
294 | (FRAGP)->tc_frag_data.length = 0; \ |
295 | (FRAGP)->tc_frag_data.last_length = 0; \ | |
296 | (FRAGP)->tc_frag_data.max_prefix_length = 0; \ | |
297 | (FRAGP)->tc_frag_data.prefix_length = 0; \ | |
298 | (FRAGP)->tc_frag_data.default_prefix = 0; \ | |
299 | (FRAGP)->tc_frag_data.cmp_size = 0; \ | |
300 | (FRAGP)->tc_frag_data.classified = 0; \ | |
301 | (FRAGP)->tc_frag_data.branch_type = 0; \ | |
fbf3f584 L |
302 | } \ |
303 | while (0) | |
304 | ||
b1b7d09b AM |
305 | #define WORKING_DOT_WORD 1 |
306 | ||
62a02d25 L |
307 | /* How to generate NOPs for .nop direct directive. */ |
308 | extern void i386_generate_nops (fragS *, char *, offsetT, int); | |
309 | #define md_generate_nops(frag, where, amount, control) \ | |
310 | i386_generate_nops ((frag), (where), (amount), (control)) | |
311 | ||
3ae729d5 L |
312 | #define HANDLE_ALIGN(fragP) \ |
313 | if (fragP->fr_type == rs_align_code) \ | |
314 | { \ | |
315 | offsetT __count = (fragP->fr_next->fr_address \ | |
316 | - fragP->fr_address \ | |
317 | - fragP->fr_fix); \ | |
db222310 L |
318 | if (__count > 0 \ |
319 | && (unsigned int) __count <= fragP->tc_frag_data.max_bytes) \ | |
3ae729d5 L |
320 | md_generate_nops (fragP, fragP->fr_literal + fragP->fr_fix, \ |
321 | __count, 0); \ | |
322 | } | |
323 | ||
54cfded0 | 324 | /* We want .cfi_* pseudo-ops for generating unwind info. */ |
a4447b93 | 325 | #define TARGET_USE_CFIPOP 1 |
54cfded0 | 326 | |
a4447b93 RH |
327 | extern unsigned int x86_dwarf2_return_column; |
328 | #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column | |
329 | ||
330 | extern int x86_cie_data_alignment; | |
331 | #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment | |
54cfded0 | 332 | |
d7921315 L |
333 | extern int x86_dwarf2_addr_size (void); |
334 | #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size () | |
335 | ||
a60de03c JB |
336 | #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum |
337 | extern void tc_x86_parse_to_dw2regnum (expressionS *); | |
54cfded0 AM |
338 | |
339 | #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions | |
e3bb37b5 | 340 | extern void tc_x86_frame_initial_instructions (void); |
54cfded0 | 341 | |
d2b2c203 | 342 | #define md_elf_section_type(str,len) i386_elf_section_type (str, len) |
e3bb37b5 | 343 | extern int i386_elf_section_type (const char *, size_t); |
d2b2c203 | 344 | |
ad5fec3b EB |
345 | #ifdef TE_SOLARIS |
346 | #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec) | |
347 | extern void i386_solaris_fix_up_eh_frame (segT); | |
348 | #endif | |
349 | ||
3b22753a | 350 | /* Support for SHF_X86_64_LARGE */ |
01e1a5bc | 351 | extern bfd_vma x86_64_section_word (char *, size_t); |
6d4af3c2 | 352 | extern bfd_vma x86_64_section_letter (int, const char **); |
3b22753a L |
353 | #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG) |
354 | #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN) | |
355 | ||
b4a3a7b4 L |
356 | #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) |
357 | extern void x86_cleanup (void); | |
358 | #define md_cleanup() x86_cleanup () | |
359 | #endif | |
360 | ||
bb41ade5 AM |
361 | #ifdef TE_PE |
362 | ||
363 | #define O_secrel O_md1 | |
364 | ||
365 | #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset | |
366 | void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int); | |
367 | ||
368 | #endif /* TE_PE */ | |
369 | ||
ee86248c JB |
370 | /* X_add_symbol:X_op_symbol (Intel mode only) */ |
371 | #define O_full_ptr O_md2 | |
372 | ||
cdaa5616 IS |
373 | #ifdef OBJ_MACH_O |
374 | ||
375 | #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX)) | |
376 | ||
377 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \ | |
378 | (obj_mach_o_force_reloc_sub_same (FIX, SEG)) | |
379 | ||
380 | #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \ | |
381 | (obj_mach_o_force_reloc_sub_local (FIX, SEG)) | |
382 | ||
383 | #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1 | |
384 | ||
385 | #endif /* OBJ_MACH_O */ | |
386 | ||
6088b00e | 387 | #endif /* TC_I386 */ |