1 /* tc-i386.h -- Header file for tc-i386.c
2 Copyright 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
6 This file is part of GAS, the GNU Assembler.
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
10 the Free Software Foundation; either version 3, or (at your option)
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.
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
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
26 #include "opcodes/i386-opc.h"
30 #define TARGET_BYTES_BIG_ENDIAN 0
32 #define TARGET_ARCH (i386_arch ())
33 #define TARGET_MACH (i386_mach ())
34 extern enum bfd_architecture i386_arch (void);
35 extern unsigned long i386_mach (void);
38 #define AOUT_TARGET_FORMAT "a.out-i386-freebsd"
41 #define AOUT_TARGET_FORMAT "a.out-i386-netbsd"
44 #define AOUT_TARGET_FORMAT "a.out-i386-bsd"
47 #define AOUT_TARGET_FORMAT "a.out-i386-linux"
50 #define AOUT_TARGET_FORMAT "a.out-mach3"
53 #define AOUT_TARGET_FORMAT "a.out-i386-dynix"
55 #ifndef AOUT_TARGET_FORMAT
56 #define AOUT_TARGET_FORMAT "a.out-i386"
60 #define ELF_TARGET_FORMAT "elf32-i386-freebsd"
61 #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd"
62 #elif defined (TE_VXWORKS)
63 #define ELF_TARGET_FORMAT "elf32-i386-vxworks"
64 #elif defined (TE_NACL)
65 #define ELF_TARGET_FORMAT "elf32-i386-nacl"
66 #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl"
67 #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl"
71 #define ELF_TARGET_FORMAT "elf32-i386-sol2"
72 #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2"
75 #ifndef ELF_TARGET_FORMAT
76 #define ELF_TARGET_FORMAT "elf32-i386"
79 #ifndef ELF_TARGET_FORMAT64
80 #define ELF_TARGET_FORMAT64 "elf64-x86-64"
83 #ifndef ELF_TARGET_FORMAT32
84 #define ELF_TARGET_FORMAT32 "elf32-x86-64"
87 #ifndef ELF_TARGET_L1OM_FORMAT
88 #define ELF_TARGET_L1OM_FORMAT "elf64-l1om"
91 #ifndef ELF_TARGET_K1OM_FORMAT
92 #define ELF_TARGET_K1OM_FORMAT "elf64-k1om"
95 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
96 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
97 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
98 extern const char *i386_target_format (void);
99 #define TARGET_FORMAT i386_target_format ()
102 #define TARGET_FORMAT "coff-go32"
105 #define TARGET_FORMAT AOUT_TARGET_FORMAT
109 #if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF))
110 #define md_end i386_elf_emit_arch_note
111 extern void i386_elf_emit_arch_note (void);
114 #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
116 /* '$' may be used as immediate prefix. */
117 #undef LOCAL_LABELS_DOLLAR
118 #define LOCAL_LABELS_DOLLAR 0
119 #undef LOCAL_LABELS_FB
120 #define LOCAL_LABELS_FB 1
122 extern const char extra_symbol_chars[];
123 #define tc_symbol_chars extra_symbol_chars
125 extern const char *i386_comment_chars;
126 #define tc_comment_chars i386_comment_chars
128 /* The name of the global offset table generated by the compiler. Allow
129 this to be overridden if need be. */
130 #ifndef GLOBAL_OFFSET_TABLE_NAME
131 #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
134 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT)
135 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
137 extern void x86_cons (expressionS *, int);
139 #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_cons_fix_new(FRAG, OFF, LEN, EXP)
140 extern void x86_cons_fix_new
141 (fragS *, unsigned int, unsigned int, expressionS *);
143 #define TC_ADDRESS_BYTES x86_address_bytes
144 extern int x86_address_bytes (void);
146 #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
148 #define NO_RELOC BFD_RELOC_NONE
150 void i386_validate_fix (struct fix *);
151 #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX)
153 #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
154 extern int tc_i386_fix_adjustable (struct fix *);
156 /* Values passed to md_apply_fix don't include the symbol value. */
157 #define MD_APPLY_SYM_VALUE(FIX) 0
159 /* ELF wants external syms kept, as does PE COFF. */
160 #if defined (TE_PE) && defined (STRICT_PE_FORMAT)
161 #define EXTERN_FORCE_RELOC \
162 (OUTPUT_FLAVOR == bfd_target_elf_flavour \
163 || OUTPUT_FLAVOR == bfd_target_coff_flavour)
165 #define EXTERN_FORCE_RELOC \
166 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
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
172 the .o file. GOTOFF and GOT32 do not need to be checked here because
173 they are not pcrel. .*/
175 #define TC_FORCE_RELOCATION_LOCAL(FIX) \
177 || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \
178 || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \
179 || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \
180 || TC_FORCE_RELOCATION (FIX))
182 extern int i386_parse_name (char *, expressionS *, char *);
183 #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
185 extern operatorT i386_operator (const char *name, unsigned int operands, char *);
186 #define md_operator i386_operator
188 extern int i386_need_index_operator (void);
189 #define md_need_index_operator i386_need_index_operator
191 #define md_register_arithmetic 0
193 extern const struct relax_type md_relax_table[];
194 #define TC_GENERIC_RELAX_TABLE md_relax_table
196 extern int optimize_align_code;
198 #define md_do_align(n, fill, len, max, around) \
201 && optimize_align_code \
203 || ((char)*(fill) == (char)0x90 && (len) == 1)) \
204 && subseg_text_p (now_seg)) \
206 frag_align_code ((n), (max)); \
210 #define MAX_MEM_FOR_RS_ALIGN_CODE 31
212 extern void i386_align_code (fragS *, int);
214 #define HANDLE_ALIGN(fragP) \
215 if (fragP->fr_type == rs_align_code) \
216 i386_align_code (fragP, (fragP->fr_next->fr_address \
217 - fragP->fr_address \
220 void i386_print_statistics (FILE *);
221 #define tc_print_statistics i386_print_statistics
223 extern unsigned int i386_frag_max_var (fragS *);
224 #define md_frag_max_var i386_frag_max_var
226 #define md_number_to_chars number_to_chars_littleendian
234 PROCESSOR_PENTIUMPRO,
252 extern enum processor_type cpu_arch_tune;
253 extern enum processor_type cpu_arch_isa;
254 extern i386_cpu_flags cpu_arch_isa_flags;
256 struct i386_tc_frag_data
258 enum processor_type isa;
259 i386_cpu_flags isa_flags;
260 enum processor_type tune;
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
268 #define TC_FRAG_INIT(FRAGP) \
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; \
278 #define tc_init_after_args() sco_id ()
279 extern void sco_id (void);
282 #define WORKING_DOT_WORD 1
284 /* We want .cfi_* pseudo-ops for generating unwind info. */
285 #define TARGET_USE_CFIPOP 1
287 extern unsigned int x86_dwarf2_return_column;
288 #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
290 extern int x86_cie_data_alignment;
291 #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
293 extern int x86_dwarf2_addr_size (void);
294 #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size ()
296 #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
297 extern void tc_x86_parse_to_dw2regnum (expressionS *);
299 #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
300 extern void tc_x86_frame_initial_instructions (void);
302 #define md_elf_section_type(str,len) i386_elf_section_type (str, len)
303 extern int i386_elf_section_type (const char *, size_t);
306 #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
307 extern void i386_solaris_fix_up_eh_frame (segT);
310 /* Support for SHF_X86_64_LARGE */
311 extern bfd_vma x86_64_section_word (char *, size_t);
312 extern bfd_vma x86_64_section_letter (int, char **);
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)
318 #define O_secrel O_md1
320 #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
321 void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
325 /* X_add_symbol:X_op_symbol (Intel mode only) */
326 #define O_full_ptr O_md2
330 #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX))
332 #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \
333 (obj_mach_o_force_reloc_sub_same (FIX, SEG))
335 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \
336 (obj_mach_o_force_reloc_sub_local (FIX, SEG))
338 #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
340 #endif /* OBJ_MACH_O */