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252b5132 1/* tc-i386.h -- Header file for tc-i386.c
219d1afa 2 Copyright (C) 1989-2018 Free Software Foundation, Inc.
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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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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"
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43#endif
44#ifdef TE_LINUX
4c63da97 45#define AOUT_TARGET_FORMAT "a.out-i386-linux"
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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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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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60#elif defined (TE_VXWORKS)
61#define ELF_TARGET_FORMAT "elf32-i386-vxworks"
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62#elif defined (TE_NACL)
63#define ELF_TARGET_FORMAT "elf32-i386-nacl"
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64#define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl"
65#define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl"
4ada7262 66#endif
eac338cf 67
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68#ifdef TE_SOLARIS
69#define ELF_TARGET_FORMAT "elf32-i386-sol2"
70#define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2"
71#endif
72
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73#ifndef ELF_TARGET_FORMAT
74#define ELF_TARGET_FORMAT "elf32-i386"
75#endif
76
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77#ifndef ELF_TARGET_FORMAT64
78#define ELF_TARGET_FORMAT64 "elf64-x86-64"
79#endif
80
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81#ifndef ELF_TARGET_FORMAT32
82#define ELF_TARGET_FORMAT32 "elf32-x86-64"
83#endif
84
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85#ifndef ELF_TARGET_L1OM_FORMAT
86#define ELF_TARGET_L1OM_FORMAT "elf64-l1om"
87#endif
88
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89#ifndef ELF_TARGET_K1OM_FORMAT
90#define ELF_TARGET_K1OM_FORMAT "elf64-k1om"
91#endif
92
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93#ifndef ELF_TARGET_IAMCU_FORMAT
94#define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu"
95#endif
96
3e73aa7c 97#if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
321098a5 98 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
e57f8c65 99 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
e3bb37b5 100extern const char *i386_target_format (void);
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101#define TARGET_FORMAT i386_target_format ()
102#else
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103#ifdef TE_GO32
104#define TARGET_FORMAT "coff-go32"
105#endif
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106#ifdef OBJ_AOUT
107#define TARGET_FORMAT AOUT_TARGET_FORMAT
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108#endif
109#endif
110
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111#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
112
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113/* '$' may be used as immediate prefix. */
114#undef LOCAL_LABELS_DOLLAR
115#define LOCAL_LABELS_DOLLAR 0
116#undef LOCAL_LABELS_FB
6088b00e 117#define LOCAL_LABELS_FB 1
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118
119extern const char extra_symbol_chars[];
120#define tc_symbol_chars extra_symbol_chars
121
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122extern const char *i386_comment_chars;
123#define tc_comment_chars i386_comment_chars
124
252b5132 125/* The name of the global offset table generated by the compiler. Allow
4a4f25cf 126 this to be overridden if need be. */
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127#ifndef GLOBAL_OFFSET_TABLE_NAME
128#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
129#endif
130
718ddfc0 131#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT)
6088b00e 132#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
d182319b 133#endif
62ebcb5c 134extern bfd_reloc_code_real_type x86_cons (expressionS *, int);
6088b00e 135
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136#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
137 x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC)
6088b00e 138extern void x86_cons_fix_new
62ebcb5c 139(fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type);
6088b00e 140
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141#define TC_ADDRESS_BYTES x86_address_bytes
142extern int x86_address_bytes (void);
143
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144#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
145
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146#define NO_RELOC BFD_RELOC_NONE
147
e3bb37b5 148void i386_validate_fix (struct fix *);
a161fe53 149#define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX)
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150
151#define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
e3bb37b5 152extern int tc_i386_fix_adjustable (struct fix *);
6088b00e 153
55cf6793 154/* Values passed to md_apply_fix don't include the symbol value. */
a161fe53 155#define MD_APPLY_SYM_VALUE(FIX) 0
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156
157/* ELF wants external syms kept, as does PE COFF. */
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158#if defined (TE_PE) && defined (STRICT_PE_FORMAT)
159#define EXTERN_FORCE_RELOC \
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160 (OUTPUT_FLAVOR == bfd_target_elf_flavour \
161 || OUTPUT_FLAVOR == bfd_target_coff_flavour)
162#else
163#define EXTERN_FORCE_RELOC \
164 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
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165#endif
166
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167/* This expression evaluates to true if the relocation is for a local
168 object for which we still want to do the relocation at runtime.
169 False if we are willing to perform this relocation while building
8d63c93e 170 the .o file. GOTOFF and GOT32 do not need to be checked here because
2a86604a 171 they are not pcrel. .*/
6088b00e 172
56ceb5b5 173#define TC_FORCE_RELOCATION_LOCAL(FIX) \
91cb9803 174 (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
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L
175 || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \
176 || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \
177 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \
91cb9803 178 || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
6088b00e 179
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180extern int i386_parse_name (char *, expressionS *, char *);
181#define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
252b5132 182
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183extern operatorT i386_operator (const char *name, unsigned int operands, char *);
184#define md_operator i386_operator
185
186extern int i386_need_index_operator (void);
187#define md_need_index_operator i386_need_index_operator
188
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189#define md_register_arithmetic 0
190
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191extern const struct relax_type md_relax_table[];
192#define TC_GENERIC_RELAX_TABLE md_relax_table
193
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194extern int optimize_align_code;
195
252b5132 196#define md_do_align(n, fill, len, max, around) \
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197if ((n) \
198 && !need_pass_2 \
199 && optimize_align_code \
200 && (!(fill) \
201 || ((char)*(fill) == (char)0x90 && (len) == 1)) \
b9e57a38 202 && subseg_text_p (now_seg)) \
252b5132 203 { \
0a9ef439 204 frag_align_code ((n), (max)); \
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205 goto around; \
206 }
207
76bc74dc 208#define MAX_MEM_FOR_RS_ALIGN_CODE 31
0a9ef439 209
e3bb37b5 210extern void i386_align_code (fragS *, int);
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211
212#define HANDLE_ALIGN(fragP) \
213if (fragP->fr_type == rs_align_code) \
214 i386_align_code (fragP, (fragP->fr_next->fr_address \
215 - fragP->fr_address \
216 - fragP->fr_fix));
217
e3bb37b5 218void i386_print_statistics (FILE *);
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219#define tc_print_statistics i386_print_statistics
220
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221extern unsigned int i386_frag_max_var (fragS *);
222#define md_frag_max_var i386_frag_max_var
223
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224#define md_number_to_chars number_to_chars_littleendian
225
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226enum processor_type
227{
228 PROCESSOR_UNKNOWN,
229 PROCESSOR_I386,
230 PROCESSOR_I486,
231 PROCESSOR_PENTIUM,
232 PROCESSOR_PENTIUMPRO,
233 PROCESSOR_PENTIUM4,
234 PROCESSOR_NOCONA,
235 PROCESSOR_CORE,
236 PROCESSOR_CORE2,
bd5295b2 237 PROCESSOR_COREI7,
3632d14b 238 PROCESSOR_L1OM,
7a9068fe 239 PROCESSOR_K1OM,
81486035 240 PROCESSOR_IAMCU,
fbf3f584
L
241 PROCESSOR_K6,
242 PROCESSOR_ATHLON,
243 PROCESSOR_K8,
244 PROCESSOR_GENERIC32,
245 PROCESSOR_GENERIC64,
69dd9865 246 PROCESSOR_AMDFAM10,
7b458c12 247 PROCESSOR_BD,
029f3522 248 PROCESSOR_ZNVER,
7b458c12 249 PROCESSOR_BT
fbf3f584
L
250};
251
252extern enum processor_type cpu_arch_tune;
253extern enum processor_type cpu_arch_isa;
254extern i386_cpu_flags cpu_arch_isa_flags;
255
256struct i386_tc_frag_data
257{
258 enum processor_type isa;
259 i386_cpu_flags isa_flags;
260 enum processor_type tune;
261};
262
263/* We need to emit the right NOP pattern in .align frags. This is
264 done after the text-to-bits assembly pass, so we need to mark it with
265 the isa/tune settings at the time the .align was assembled. */
266#define TC_FRAG_TYPE struct i386_tc_frag_data
267
268#define TC_FRAG_INIT(FRAGP) \
269 do \
270 { \
271 (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
272 (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \
273 (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
274 } \
275 while (0)
276
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277#ifdef SCO_ELF
278#define tc_init_after_args() sco_id ()
e3bb37b5 279extern void sco_id (void);
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280#endif
281
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AM
282#define WORKING_DOT_WORD 1
283
54cfded0 284/* We want .cfi_* pseudo-ops for generating unwind info. */
a4447b93 285#define TARGET_USE_CFIPOP 1
54cfded0 286
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287extern unsigned int x86_dwarf2_return_column;
288#define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
289
290extern int x86_cie_data_alignment;
291#define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
54cfded0 292
d7921315
L
293extern int x86_dwarf2_addr_size (void);
294#define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size ()
295
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296#define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
297extern void tc_x86_parse_to_dw2regnum (expressionS *);
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AM
298
299#define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
e3bb37b5 300extern void tc_x86_frame_initial_instructions (void);
54cfded0 301
d2b2c203 302#define md_elf_section_type(str,len) i386_elf_section_type (str, len)
e3bb37b5 303extern int i386_elf_section_type (const char *, size_t);
d2b2c203 304
ad5fec3b
EB
305#ifdef TE_SOLARIS
306#define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
307extern void i386_solaris_fix_up_eh_frame (segT);
308#endif
309
3b22753a 310/* Support for SHF_X86_64_LARGE */
01e1a5bc 311extern bfd_vma x86_64_section_word (char *, size_t);
6d4af3c2 312extern bfd_vma x86_64_section_letter (int, const char **);
3b22753a
L
313#define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG)
314#define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN)
315
bb41ade5
AM
316#ifdef TE_PE
317
318#define O_secrel O_md1
319
320#define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
321void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
322
323#endif /* TE_PE */
324
ee86248c
JB
325/* X_add_symbol:X_op_symbol (Intel mode only) */
326#define O_full_ptr O_md2
327
cdaa5616
IS
328#ifdef OBJ_MACH_O
329
330#define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX))
331
332#define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \
333 (obj_mach_o_force_reloc_sub_same (FIX, SEG))
334
335#define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \
336 (obj_mach_o_force_reloc_sub_local (FIX, SEG))
337
338#define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
339
340#endif /* OBJ_MACH_O */
341
6088b00e 342#endif /* TC_I386 */