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[deliverable/binutils-gdb.git] / gas / config / tc-i386.h
CommitLineData
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 28struct 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 34extern 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
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NC
69#ifndef ELF_TARGET_FORMAT64
70#define ELF_TARGET_FORMAT64 "elf64-x86-64"
71#endif
72
3e73aa7c
JH
73#if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
74 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF))
e3bb37b5 75extern const char *i386_target_format (void);
4c63da97
AM
76#define TARGET_FORMAT i386_target_format ()
77#else
252b5132 78#ifdef OBJ_ELF
4ada7262 79#define TARGET_FORMAT ELF_TARGET_FORMAT
252b5132 80#endif
4c63da97
AM
81#ifdef OBJ_AOUT
82#define TARGET_FORMAT AOUT_TARGET_FORMAT
252b5132
RH
83#endif
84#endif
85
a847613f
AM
86#if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF))
87#define md_end i386_elf_emit_arch_note
e3bb37b5 88extern void i386_elf_emit_arch_note (void);
a847613f
AM
89#endif
90
18e1d487
AM
91#define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
92
6088b00e 93#define LOCAL_LABELS_FB 1
252b5132
RH
94
95extern const char extra_symbol_chars[];
96#define tc_symbol_chars extra_symbol_chars
97
b3b91714
AM
98extern const char *i386_comment_chars;
99#define tc_comment_chars i386_comment_chars
100
252b5132 101/* The name of the global offset table generated by the compiler. Allow
4a4f25cf 102 this to be overridden if need be. */
252b5132
RH
103#ifndef GLOBAL_OFFSET_TABLE_NAME
104#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
105#endif
106
718ddfc0 107#if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT)
6088b00e 108#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
e3bb37b5 109extern void x86_cons (expressionS *, int);
d182319b 110#endif
6088b00e
AM
111
112#define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_cons_fix_new(FRAG, OFF, LEN, EXP)
113extern void x86_cons_fix_new
e3bb37b5 114 (fragS *, unsigned int, unsigned int, expressionS *);
6088b00e
AM
115
116#define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
117
6088b00e
AM
118#define NO_RELOC BFD_RELOC_NONE
119
e3bb37b5 120void i386_validate_fix (struct fix *);
a161fe53 121#define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX)
6088b00e
AM
122
123#define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
e3bb37b5 124extern int tc_i386_fix_adjustable (struct fix *);
6088b00e 125
55cf6793 126/* Values passed to md_apply_fix don't include the symbol value. */
a161fe53 127#define MD_APPLY_SYM_VALUE(FIX) 0
3ca4bdc3
AM
128
129/* ELF wants external syms kept, as does PE COFF. */
ae6063d4
AM
130#if defined (TE_PE) && defined (STRICT_PE_FORMAT)
131#define EXTERN_FORCE_RELOC \
3ca4bdc3
AM
132 (OUTPUT_FLAVOR == bfd_target_elf_flavour \
133 || OUTPUT_FLAVOR == bfd_target_coff_flavour)
134#else
135#define EXTERN_FORCE_RELOC \
136 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
252b5132
RH
137#endif
138
a161fe53
AM
139/* This expression evaluates to true if the relocation is for a local
140 object for which we still want to do the relocation at runtime.
141 False if we are willing to perform this relocation while building
142 the .o file. GOTOFF does not need to be checked here because it is
143 not pcrel. I am not sure if some of the others are ever used with
6088b00e
AM
144 pcrel, but it is easier to be safe than sorry. */
145
a161fe53
AM
146#define TC_FORCE_RELOCATION_LOCAL(FIX) \
147 (!(FIX)->fx_pcrel \
a161fe53
AM
148 || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \
149 || (FIX)->fx_r_type == BFD_RELOC_386_GOT32 \
150 || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \
151 || TC_FORCE_RELOCATION (FIX))
6088b00e 152
4d1bb795
JB
153extern int i386_parse_name (char *, expressionS *, char *);
154#define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
252b5132 155
5a918ce7
JB
156#define md_register_arithmetic 0
157
252b5132
RH
158extern const struct relax_type md_relax_table[];
159#define TC_GENERIC_RELAX_TABLE md_relax_table
160
12b55ccc
L
161extern int optimize_align_code;
162
252b5132 163#define md_do_align(n, fill, len, max, around) \
12b55ccc
L
164if ((n) \
165 && !need_pass_2 \
166 && optimize_align_code \
167 && (!(fill) \
168 || ((char)*(fill) == (char)0x90 && (len) == 1)) \
b9e57a38 169 && subseg_text_p (now_seg)) \
252b5132 170 { \
0a9ef439 171 frag_align_code ((n), (max)); \
252b5132
RH
172 goto around; \
173 }
174
76bc74dc 175#define MAX_MEM_FOR_RS_ALIGN_CODE 31
0a9ef439 176
e3bb37b5 177extern void i386_align_code (fragS *, int);
252b5132
RH
178
179#define HANDLE_ALIGN(fragP) \
180if (fragP->fr_type == rs_align_code) \
181 i386_align_code (fragP, (fragP->fr_next->fr_address \
182 - fragP->fr_address \
183 - fragP->fr_fix));
184
e3bb37b5 185void i386_print_statistics (FILE *);
252b5132
RH
186#define tc_print_statistics i386_print_statistics
187
188#define md_number_to_chars number_to_chars_littleendian
189
fbf3f584
L
190enum processor_type
191{
192 PROCESSOR_UNKNOWN,
193 PROCESSOR_I386,
194 PROCESSOR_I486,
195 PROCESSOR_PENTIUM,
196 PROCESSOR_PENTIUMPRO,
197 PROCESSOR_PENTIUM4,
198 PROCESSOR_NOCONA,
199 PROCESSOR_CORE,
200 PROCESSOR_CORE2,
bd5295b2 201 PROCESSOR_COREI7,
fbf3f584
L
202 PROCESSOR_K6,
203 PROCESSOR_ATHLON,
204 PROCESSOR_K8,
205 PROCESSOR_GENERIC32,
206 PROCESSOR_GENERIC64,
207 PROCESSOR_AMDFAM10
208};
209
210extern enum processor_type cpu_arch_tune;
211extern enum processor_type cpu_arch_isa;
212extern i386_cpu_flags cpu_arch_isa_flags;
213
214struct i386_tc_frag_data
215{
216 enum processor_type isa;
217 i386_cpu_flags isa_flags;
218 enum processor_type tune;
219};
220
221/* We need to emit the right NOP pattern in .align frags. This is
222 done after the text-to-bits assembly pass, so we need to mark it with
223 the isa/tune settings at the time the .align was assembled. */
224#define TC_FRAG_TYPE struct i386_tc_frag_data
225
226#define TC_FRAG_INIT(FRAGP) \
227 do \
228 { \
229 (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
230 (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \
231 (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
232 } \
233 while (0)
234
252b5132
RH
235#ifdef SCO_ELF
236#define tc_init_after_args() sco_id ()
e3bb37b5 237extern void sco_id (void);
252b5132
RH
238#endif
239
b1b7d09b
AM
240#define WORKING_DOT_WORD 1
241
54cfded0 242/* We want .cfi_* pseudo-ops for generating unwind info. */
a4447b93 243#define TARGET_USE_CFIPOP 1
54cfded0 244
a4447b93
RH
245extern unsigned int x86_dwarf2_return_column;
246#define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
247
248extern int x86_cie_data_alignment;
249#define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
54cfded0 250
a60de03c
JB
251#define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
252extern void tc_x86_parse_to_dw2regnum (expressionS *);
54cfded0
AM
253
254#define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
e3bb37b5 255extern void tc_x86_frame_initial_instructions (void);
54cfded0 256
d2b2c203 257#define md_elf_section_type(str,len) i386_elf_section_type (str, len)
e3bb37b5 258extern int i386_elf_section_type (const char *, size_t);
d2b2c203 259
ad5fec3b
EB
260#ifdef TE_SOLARIS
261#define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
262extern void i386_solaris_fix_up_eh_frame (segT);
263#endif
264
3b22753a 265/* Support for SHF_X86_64_LARGE */
01e1a5bc
NC
266extern bfd_vma x86_64_section_word (char *, size_t);
267extern bfd_vma x86_64_section_letter (int, char **);
3b22753a
L
268#define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG)
269#define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN)
270
bb41ade5
AM
271#ifdef TE_PE
272
273#define O_secrel O_md1
274
275#define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
276void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
277
278#endif /* TE_PE */
279
6088b00e 280#endif /* TC_I386 */
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