1 /* tc-i386.h -- Header file for tc-i386.c
2 Copyright (C) 1989-2018 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
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
8 the Free Software Foundation; either version 3, or (at your option)
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.
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
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "opcodes/i386-opc.h"
28 #define TARGET_BYTES_BIG_ENDIAN 0
30 #define TARGET_ARCH (i386_arch ())
31 #define TARGET_MACH (i386_mach ())
32 extern enum bfd_architecture i386_arch (void);
33 extern unsigned long i386_mach (void);
36 #define AOUT_TARGET_FORMAT "a.out-i386-freebsd"
39 #define AOUT_TARGET_FORMAT "a.out-i386-netbsd"
42 #define AOUT_TARGET_FORMAT "a.out-i386-bsd"
45 #define AOUT_TARGET_FORMAT "a.out-i386-linux"
48 #define AOUT_TARGET_FORMAT "a.out-mach3"
51 #define AOUT_TARGET_FORMAT "a.out-i386-dynix"
53 #ifndef AOUT_TARGET_FORMAT
54 #define AOUT_TARGET_FORMAT "a.out-i386"
58 #define ELF_TARGET_FORMAT "elf32-i386-freebsd"
59 #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd"
60 #elif defined (TE_VXWORKS)
61 #define ELF_TARGET_FORMAT "elf32-i386-vxworks"
62 #elif defined (TE_NACL)
63 #define ELF_TARGET_FORMAT "elf32-i386-nacl"
64 #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl"
65 #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl"
69 #define ELF_TARGET_FORMAT "elf32-i386-sol2"
70 #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2"
73 #ifndef ELF_TARGET_FORMAT
74 #define ELF_TARGET_FORMAT "elf32-i386"
77 #ifndef ELF_TARGET_FORMAT64
78 #define ELF_TARGET_FORMAT64 "elf64-x86-64"
81 #ifndef ELF_TARGET_FORMAT32
82 #define ELF_TARGET_FORMAT32 "elf32-x86-64"
85 #ifndef ELF_TARGET_L1OM_FORMAT
86 #define ELF_TARGET_L1OM_FORMAT "elf64-l1om"
89 #ifndef ELF_TARGET_K1OM_FORMAT
90 #define ELF_TARGET_K1OM_FORMAT "elf64-k1om"
93 #ifndef ELF_TARGET_IAMCU_FORMAT
94 #define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu"
97 #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \
98 || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \
99 || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O))
100 extern const char *i386_target_format (void);
101 #define TARGET_FORMAT i386_target_format ()
104 #define TARGET_FORMAT "coff-go32"
107 #define TARGET_FORMAT AOUT_TARGET_FORMAT
111 #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
113 /* '$' may be used as immediate prefix. */
114 #undef LOCAL_LABELS_DOLLAR
115 #define LOCAL_LABELS_DOLLAR 0
116 #undef LOCAL_LABELS_FB
117 #define LOCAL_LABELS_FB 1
119 extern const char extra_symbol_chars[];
120 #define tc_symbol_chars extra_symbol_chars
122 extern const char *i386_comment_chars;
123 #define tc_comment_chars i386_comment_chars
125 /* The name of the global offset table generated by the compiler. Allow
126 this to be overridden if need be. */
127 #ifndef GLOBAL_OFFSET_TABLE_NAME
128 #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
131 #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT)
132 #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES)
134 extern bfd_reloc_code_real_type x86_cons (expressionS *, int);
136 #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \
137 x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC)
138 extern void x86_cons_fix_new
139 (fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type);
141 #define TC_ADDRESS_BYTES x86_address_bytes
142 extern int x86_address_bytes (void);
144 #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
146 #define NO_RELOC BFD_RELOC_NONE
148 void i386_validate_fix (struct fix *);
149 #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX)
151 #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X)
152 extern int tc_i386_fix_adjustable (struct fix *);
154 /* Values passed to md_apply_fix don't include the symbol value. */
155 #define MD_APPLY_SYM_VALUE(FIX) 0
157 /* ELF wants external syms kept, as does PE COFF. */
158 #if defined (TE_PE) && defined (STRICT_PE_FORMAT)
159 #define EXTERN_FORCE_RELOC \
160 (OUTPUT_FLAVOR == bfd_target_elf_flavour \
161 || OUTPUT_FLAVOR == bfd_target_coff_flavour)
163 #define EXTERN_FORCE_RELOC \
164 (OUTPUT_FLAVOR == bfd_target_elf_flavour)
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
170 the .o file. GOTOFF and GOT32 do not need to be checked here because
171 they are not pcrel. .*/
173 #define TC_FORCE_RELOCATION_LOCAL(FIX) \
174 (GENERIC_FORCE_RELOCATION_LOCAL (FIX) \
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 \
178 || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX)
180 extern int i386_parse_name (char *, expressionS *, char *);
181 #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c)
183 extern operatorT i386_operator (const char *name, unsigned int operands, char *);
184 #define md_operator i386_operator
186 extern int i386_need_index_operator (void);
187 #define md_need_index_operator i386_need_index_operator
189 #define md_register_arithmetic 0
191 extern const struct relax_type md_relax_table[];
192 #define TC_GENERIC_RELAX_TABLE md_relax_table
194 extern int optimize_align_code;
196 #define md_do_align(n, fill, len, max, around) \
199 && optimize_align_code \
201 || ((char)*(fill) == (char)0x90 && (len) == 1)) \
202 && subseg_text_p (now_seg)) \
204 frag_align_code ((n), (max)); \
208 #define MAX_MEM_FOR_RS_ALIGN_CODE 4095
210 void i386_print_statistics (FILE *);
211 #define tc_print_statistics i386_print_statistics
213 extern unsigned int i386_frag_max_var (fragS *);
214 #define md_frag_max_var i386_frag_max_var
216 #define md_number_to_chars number_to_chars_littleendian
224 PROCESSOR_PENTIUMPRO,
244 extern enum processor_type cpu_arch_tune;
245 extern enum processor_type cpu_arch_isa;
246 extern i386_cpu_flags cpu_arch_isa_flags;
248 struct i386_tc_frag_data
250 enum processor_type isa;
251 i386_cpu_flags isa_flags;
252 enum processor_type tune;
255 /* We need to emit the right NOP pattern in .align frags. This is
256 done after the text-to-bits assembly pass, so we need to mark it with
257 the isa/tune settings at the time the .align was assembled. */
258 #define TC_FRAG_TYPE struct i386_tc_frag_data
260 #define TC_FRAG_INIT(FRAGP) \
263 (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \
264 (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \
265 (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \
269 #define WORKING_DOT_WORD 1
271 /* How to generate NOPs for .nop direct directive. */
272 extern void i386_generate_nops (fragS *, char *, offsetT, int);
273 #define md_generate_nops(frag, where, amount, control) \
274 i386_generate_nops ((frag), (where), (amount), (control))
276 #define HANDLE_ALIGN(fragP) \
277 if (fragP->fr_type == rs_align_code) \
279 offsetT __count = (fragP->fr_next->fr_address \
280 - fragP->fr_address \
282 if (__count > 0 && __count <= MAX_MEM_FOR_RS_ALIGN_CODE) \
283 md_generate_nops (fragP, fragP->fr_literal + fragP->fr_fix, \
287 /* We want .cfi_* pseudo-ops for generating unwind info. */
288 #define TARGET_USE_CFIPOP 1
290 extern unsigned int x86_dwarf2_return_column;
291 #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column
293 extern int x86_cie_data_alignment;
294 #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment
296 extern int x86_dwarf2_addr_size (void);
297 #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size ()
299 #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum
300 extern void tc_x86_parse_to_dw2regnum (expressionS *);
302 #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions
303 extern void tc_x86_frame_initial_instructions (void);
305 #define md_elf_section_type(str,len) i386_elf_section_type (str, len)
306 extern int i386_elf_section_type (const char *, size_t);
309 #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec)
310 extern void i386_solaris_fix_up_eh_frame (segT);
313 /* Support for SHF_X86_64_LARGE */
314 extern bfd_vma x86_64_section_word (char *, size_t);
315 extern bfd_vma x86_64_section_letter (int, const char **);
316 #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG)
317 #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN)
319 #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
320 extern void x86_cleanup (void);
321 #define md_cleanup() x86_cleanup ()
326 #define O_secrel O_md1
328 #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset
329 void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int);
333 /* X_add_symbol:X_op_symbol (Intel mode only) */
334 #define O_full_ptr O_md2
338 #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX))
340 #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \
341 (obj_mach_o_force_reloc_sub_same (FIX, SEG))
343 #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \
344 (obj_mach_o_force_reloc_sub_local (FIX, SEG))
346 #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1
348 #endif /* OBJ_MACH_O */