Commit | Line | Data |
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252b5132 | 1 | /* tc-i386.h -- Header file for tc-i386.c |
f7e42eb4 | 2 | Copyright 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
23117009 | 3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
f7e42eb4 | 4 | Free Software Foundation, Inc. |
252b5132 RH |
5 | |
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
ec2655a6 | 10 | the Free Software Foundation; either version 3, or (at your option) |
252b5132 RH |
11 | any later version. |
12 | ||
13 | GAS is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GAS; see the file COPYING. If not, write to the Free | |
4b4da160 NC |
20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
21 | 02110-1301, USA. */ | |
252b5132 RH |
22 | |
23 | #ifndef TC_I386 | |
24 | #define TC_I386 1 | |
25 | ||
1d5f2fe9 L |
26 | #include "opcodes/i386-opc.h" |
27 | ||
252b5132 | 28 | struct fix; |
252b5132 RH |
29 | |
30 | #define TARGET_BYTES_BIG_ENDIAN 0 | |
31 | ||
252b5132 | 32 | #define TARGET_ARCH bfd_arch_i386 |
b9d79e03 | 33 | #define TARGET_MACH (i386_mach ()) |
b7c92712 | 34 | extern unsigned long i386_mach (void); |
252b5132 | 35 | |
cac5b87b DB |
36 | #ifdef TE_FreeBSD |
37 | #define AOUT_TARGET_FORMAT "a.out-i386-freebsd" | |
38 | #endif | |
252b5132 | 39 | #ifdef TE_NetBSD |
4c63da97 | 40 | #define AOUT_TARGET_FORMAT "a.out-i386-netbsd" |
252b5132 RH |
41 | #endif |
42 | #ifdef TE_386BSD | |
4c63da97 | 43 | #define AOUT_TARGET_FORMAT "a.out-i386-bsd" |
252b5132 RH |
44 | #endif |
45 | #ifdef TE_LINUX | |
4c63da97 | 46 | #define AOUT_TARGET_FORMAT "a.out-i386-linux" |
252b5132 RH |
47 | #endif |
48 | #ifdef TE_Mach | |
4c63da97 | 49 | #define AOUT_TARGET_FORMAT "a.out-mach3" |
252b5132 RH |
50 | #endif |
51 | #ifdef TE_DYNIX | |
4c63da97 | 52 | #define AOUT_TARGET_FORMAT "a.out-i386-dynix" |
252b5132 | 53 | #endif |
4c63da97 AM |
54 | #ifndef AOUT_TARGET_FORMAT |
55 | #define AOUT_TARGET_FORMAT "a.out-i386" | |
252b5132 | 56 | #endif |
252b5132 | 57 | |
4ada7262 DB |
58 | #ifdef TE_FreeBSD |
59 | #define ELF_TARGET_FORMAT "elf32-i386-freebsd" | |
9d7cbccd | 60 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd" |
eac338cf PB |
61 | #elif defined (TE_VXWORKS) |
62 | #define ELF_TARGET_FORMAT "elf32-i386-vxworks" | |
4ada7262 | 63 | #endif |
eac338cf | 64 | |
4ada7262 DB |
65 | #ifndef ELF_TARGET_FORMAT |
66 | #define ELF_TARGET_FORMAT "elf32-i386" | |
67 | #endif | |
68 | ||
9d7cbccd NC |
69 | #ifndef ELF_TARGET_FORMAT64 |
70 | #define ELF_TARGET_FORMAT64 "elf64-x86-64" | |
71 | #endif | |
72 | ||
3e73aa7c | 73 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
321098a5 L |
74 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
75 | || defined (TE_PE) || defined (TE_PEP)) | |
e3bb37b5 | 76 | extern const char *i386_target_format (void); |
4c63da97 AM |
77 | #define TARGET_FORMAT i386_target_format () |
78 | #else | |
4c63da97 AM |
79 | #ifdef OBJ_AOUT |
80 | #define TARGET_FORMAT AOUT_TARGET_FORMAT | |
252b5132 RH |
81 | #endif |
82 | #endif | |
83 | ||
a847613f AM |
84 | #if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)) |
85 | #define md_end i386_elf_emit_arch_note | |
e3bb37b5 | 86 | extern void i386_elf_emit_arch_note (void); |
a847613f AM |
87 | #endif |
88 | ||
18e1d487 AM |
89 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 |
90 | ||
f378cd83 L |
91 | /* '$' may be used as immediate prefix. */ |
92 | #undef LOCAL_LABELS_DOLLAR | |
93 | #define LOCAL_LABELS_DOLLAR 0 | |
94 | #undef LOCAL_LABELS_FB | |
6088b00e | 95 | #define LOCAL_LABELS_FB 1 |
252b5132 RH |
96 | |
97 | extern const char extra_symbol_chars[]; | |
98 | #define tc_symbol_chars extra_symbol_chars | |
99 | ||
b3b91714 AM |
100 | extern const char *i386_comment_chars; |
101 | #define tc_comment_chars i386_comment_chars | |
102 | ||
252b5132 | 103 | /* The name of the global offset table generated by the compiler. Allow |
4a4f25cf | 104 | this to be overridden if need be. */ |
252b5132 RH |
105 | #ifndef GLOBAL_OFFSET_TABLE_NAME |
106 | #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" | |
107 | #endif | |
108 | ||
718ddfc0 | 109 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) |
6088b00e | 110 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) |
e3bb37b5 | 111 | extern void x86_cons (expressionS *, int); |
d182319b | 112 | #endif |
6088b00e AM |
113 | |
114 | #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_cons_fix_new(FRAG, OFF, LEN, EXP) | |
115 | extern void x86_cons_fix_new | |
e3bb37b5 | 116 | (fragS *, unsigned int, unsigned int, expressionS *); |
6088b00e AM |
117 | |
118 | #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ | |
119 | ||
6088b00e AM |
120 | #define NO_RELOC BFD_RELOC_NONE |
121 | ||
e3bb37b5 | 122 | void i386_validate_fix (struct fix *); |
a161fe53 | 123 | #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX) |
6088b00e AM |
124 | |
125 | #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X) | |
e3bb37b5 | 126 | extern int tc_i386_fix_adjustable (struct fix *); |
6088b00e | 127 | |
55cf6793 | 128 | /* Values passed to md_apply_fix don't include the symbol value. */ |
a161fe53 | 129 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
3ca4bdc3 AM |
130 | |
131 | /* ELF wants external syms kept, as does PE COFF. */ | |
ae6063d4 AM |
132 | #if defined (TE_PE) && defined (STRICT_PE_FORMAT) |
133 | #define EXTERN_FORCE_RELOC \ | |
3ca4bdc3 AM |
134 | (OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
135 | || OUTPUT_FLAVOR == bfd_target_coff_flavour) | |
136 | #else | |
137 | #define EXTERN_FORCE_RELOC \ | |
138 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) | |
252b5132 RH |
139 | #endif |
140 | ||
a161fe53 AM |
141 | /* This expression evaluates to true if the relocation is for a local |
142 | object for which we still want to do the relocation at runtime. | |
143 | False if we are willing to perform this relocation while building | |
144 | the .o file. GOTOFF does not need to be checked here because it is | |
145 | not pcrel. I am not sure if some of the others are ever used with | |
6088b00e AM |
146 | pcrel, but it is easier to be safe than sorry. */ |
147 | ||
a161fe53 AM |
148 | #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
149 | (!(FIX)->fx_pcrel \ | |
a161fe53 AM |
150 | || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ |
151 | || (FIX)->fx_r_type == BFD_RELOC_386_GOT32 \ | |
152 | || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ | |
153 | || TC_FORCE_RELOCATION (FIX)) | |
6088b00e | 154 | |
4d1bb795 JB |
155 | extern int i386_parse_name (char *, expressionS *, char *); |
156 | #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) | |
252b5132 | 157 | |
ee86248c JB |
158 | extern operatorT i386_operator (const char *name, unsigned int operands, char *); |
159 | #define md_operator i386_operator | |
160 | ||
161 | extern int i386_need_index_operator (void); | |
162 | #define md_need_index_operator i386_need_index_operator | |
163 | ||
5a918ce7 JB |
164 | #define md_register_arithmetic 0 |
165 | ||
252b5132 RH |
166 | extern const struct relax_type md_relax_table[]; |
167 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
168 | ||
12b55ccc L |
169 | extern int optimize_align_code; |
170 | ||
252b5132 | 171 | #define md_do_align(n, fill, len, max, around) \ |
12b55ccc L |
172 | if ((n) \ |
173 | && !need_pass_2 \ | |
174 | && optimize_align_code \ | |
175 | && (!(fill) \ | |
176 | || ((char)*(fill) == (char)0x90 && (len) == 1)) \ | |
b9e57a38 | 177 | && subseg_text_p (now_seg)) \ |
252b5132 | 178 | { \ |
0a9ef439 | 179 | frag_align_code ((n), (max)); \ |
252b5132 RH |
180 | goto around; \ |
181 | } | |
182 | ||
76bc74dc | 183 | #define MAX_MEM_FOR_RS_ALIGN_CODE 31 |
0a9ef439 | 184 | |
e3bb37b5 | 185 | extern void i386_align_code (fragS *, int); |
252b5132 RH |
186 | |
187 | #define HANDLE_ALIGN(fragP) \ | |
188 | if (fragP->fr_type == rs_align_code) \ | |
189 | i386_align_code (fragP, (fragP->fr_next->fr_address \ | |
190 | - fragP->fr_address \ | |
191 | - fragP->fr_fix)); | |
192 | ||
e3bb37b5 | 193 | void i386_print_statistics (FILE *); |
252b5132 RH |
194 | #define tc_print_statistics i386_print_statistics |
195 | ||
196 | #define md_number_to_chars number_to_chars_littleendian | |
197 | ||
fbf3f584 L |
198 | enum processor_type |
199 | { | |
200 | PROCESSOR_UNKNOWN, | |
201 | PROCESSOR_I386, | |
202 | PROCESSOR_I486, | |
203 | PROCESSOR_PENTIUM, | |
204 | PROCESSOR_PENTIUMPRO, | |
205 | PROCESSOR_PENTIUM4, | |
206 | PROCESSOR_NOCONA, | |
207 | PROCESSOR_CORE, | |
208 | PROCESSOR_CORE2, | |
bd5295b2 | 209 | PROCESSOR_COREI7, |
fbf3f584 L |
210 | PROCESSOR_K6, |
211 | PROCESSOR_ATHLON, | |
212 | PROCESSOR_K8, | |
213 | PROCESSOR_GENERIC32, | |
214 | PROCESSOR_GENERIC64, | |
215 | PROCESSOR_AMDFAM10 | |
216 | }; | |
217 | ||
218 | extern enum processor_type cpu_arch_tune; | |
219 | extern enum processor_type cpu_arch_isa; | |
220 | extern i386_cpu_flags cpu_arch_isa_flags; | |
221 | ||
222 | struct i386_tc_frag_data | |
223 | { | |
224 | enum processor_type isa; | |
225 | i386_cpu_flags isa_flags; | |
226 | enum processor_type tune; | |
227 | }; | |
228 | ||
229 | /* We need to emit the right NOP pattern in .align frags. This is | |
230 | done after the text-to-bits assembly pass, so we need to mark it with | |
231 | the isa/tune settings at the time the .align was assembled. */ | |
232 | #define TC_FRAG_TYPE struct i386_tc_frag_data | |
233 | ||
234 | #define TC_FRAG_INIT(FRAGP) \ | |
235 | do \ | |
236 | { \ | |
237 | (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \ | |
238 | (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \ | |
239 | (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \ | |
240 | } \ | |
241 | while (0) | |
242 | ||
252b5132 RH |
243 | #ifdef SCO_ELF |
244 | #define tc_init_after_args() sco_id () | |
e3bb37b5 | 245 | extern void sco_id (void); |
252b5132 RH |
246 | #endif |
247 | ||
b1b7d09b AM |
248 | #define WORKING_DOT_WORD 1 |
249 | ||
54cfded0 | 250 | /* We want .cfi_* pseudo-ops for generating unwind info. */ |
a4447b93 | 251 | #define TARGET_USE_CFIPOP 1 |
54cfded0 | 252 | |
a4447b93 RH |
253 | extern unsigned int x86_dwarf2_return_column; |
254 | #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column | |
255 | ||
256 | extern int x86_cie_data_alignment; | |
257 | #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment | |
54cfded0 | 258 | |
a60de03c JB |
259 | #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum |
260 | extern void tc_x86_parse_to_dw2regnum (expressionS *); | |
54cfded0 AM |
261 | |
262 | #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions | |
e3bb37b5 | 263 | extern void tc_x86_frame_initial_instructions (void); |
54cfded0 | 264 | |
d2b2c203 | 265 | #define md_elf_section_type(str,len) i386_elf_section_type (str, len) |
e3bb37b5 | 266 | extern int i386_elf_section_type (const char *, size_t); |
d2b2c203 | 267 | |
ad5fec3b EB |
268 | #ifdef TE_SOLARIS |
269 | #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec) | |
270 | extern void i386_solaris_fix_up_eh_frame (segT); | |
271 | #endif | |
272 | ||
3b22753a | 273 | /* Support for SHF_X86_64_LARGE */ |
01e1a5bc NC |
274 | extern bfd_vma x86_64_section_word (char *, size_t); |
275 | extern bfd_vma x86_64_section_letter (int, char **); | |
3b22753a L |
276 | #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG) |
277 | #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN) | |
278 | ||
bb41ade5 AM |
279 | #ifdef TE_PE |
280 | ||
281 | #define O_secrel O_md1 | |
282 | ||
283 | #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset | |
284 | void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int); | |
285 | ||
286 | #endif /* TE_PE */ | |
287 | ||
ee86248c JB |
288 | /* X_add_symbol:X_op_symbol (Intel mode only) */ |
289 | #define O_full_ptr O_md2 | |
290 | ||
6088b00e | 291 | #endif /* TC_I386 */ |