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5222 | serge | 1 | /* tc-i386.h -- Header file for tc-i386.c |
6324 | serge | 2 | Copyright (C) 1989-2015 Free Software Foundation, Inc. |
5222 | serge | 3 | |
4 | This file is part of GAS, the GNU Assembler. |
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5 | |||
6 | GAS is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 3, or (at your option) |
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9 | any later version. |
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10 | |||
11 | GAS is distributed in the hope that it will be useful, |
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | GNU General Public License for more details. |
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15 | |||
16 | You should have received a copy of the GNU General Public License |
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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 |
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19 | 02110-1301, USA. */ |
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20 | |||
21 | #ifndef TC_I386 |
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22 | #define TC_I386 1 |
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23 | |||
24 | #include "opcodes/i386-opc.h" |
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25 | |||
26 | struct fix; |
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27 | |||
28 | #define TARGET_BYTES_BIG_ENDIAN 0 |
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29 | |||
30 | #define TARGET_ARCH (i386_arch ()) |
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31 | #define TARGET_MACH (i386_mach ()) |
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32 | extern enum bfd_architecture i386_arch (void); |
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33 | extern unsigned long i386_mach (void); |
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34 | |||
35 | #ifdef TE_FreeBSD |
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36 | #define AOUT_TARGET_FORMAT "a.out-i386-freebsd" |
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37 | #endif |
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38 | #ifdef TE_NetBSD |
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39 | #define AOUT_TARGET_FORMAT "a.out-i386-netbsd" |
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40 | #endif |
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41 | #ifdef TE_386BSD |
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42 | #define AOUT_TARGET_FORMAT "a.out-i386-bsd" |
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43 | #endif |
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44 | #ifdef TE_LINUX |
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45 | #define AOUT_TARGET_FORMAT "a.out-i386-linux" |
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46 | #endif |
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47 | #ifdef TE_Mach |
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48 | #define AOUT_TARGET_FORMAT "a.out-mach3" |
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49 | #endif |
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50 | #ifdef TE_DYNIX |
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51 | #define AOUT_TARGET_FORMAT "a.out-i386-dynix" |
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52 | #endif |
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53 | #ifndef AOUT_TARGET_FORMAT |
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54 | #define AOUT_TARGET_FORMAT "a.out-i386" |
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55 | #endif |
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56 | |||
57 | #ifdef TE_FreeBSD |
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58 | #define ELF_TARGET_FORMAT "elf32-i386-freebsd" |
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59 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd" |
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60 | #elif defined (TE_VXWORKS) |
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61 | #define ELF_TARGET_FORMAT "elf32-i386-vxworks" |
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62 | #elif defined (TE_NACL) |
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63 | #define ELF_TARGET_FORMAT "elf32-i386-nacl" |
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64 | #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl" |
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65 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl" |
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66 | #endif |
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67 | |||
68 | #ifdef TE_SOLARIS |
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69 | #define ELF_TARGET_FORMAT "elf32-i386-sol2" |
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70 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2" |
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71 | #endif |
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72 | |||
73 | #ifndef ELF_TARGET_FORMAT |
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74 | #define ELF_TARGET_FORMAT "elf32-i386" |
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75 | #endif |
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76 | |||
77 | #ifndef ELF_TARGET_FORMAT64 |
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78 | #define ELF_TARGET_FORMAT64 "elf64-x86-64" |
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79 | #endif |
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80 | |||
81 | #ifndef ELF_TARGET_FORMAT32 |
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82 | #define ELF_TARGET_FORMAT32 "elf32-x86-64" |
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83 | #endif |
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84 | |||
85 | #ifndef ELF_TARGET_L1OM_FORMAT |
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86 | #define ELF_TARGET_L1OM_FORMAT "elf64-l1om" |
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87 | #endif |
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88 | |||
89 | #ifndef ELF_TARGET_K1OM_FORMAT |
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90 | #define ELF_TARGET_K1OM_FORMAT "elf64-k1om" |
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91 | #endif |
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92 | |||
6324 | serge | 93 | #ifndef ELF_TARGET_IAMCU_FORMAT |
94 | #define ELF_TARGET_IAMCU_FORMAT "elf32-iamcu" |
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95 | #endif |
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96 | |||
5222 | serge | 97 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
98 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
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99 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
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100 | extern const char *i386_target_format (void); |
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101 | #define TARGET_FORMAT i386_target_format () |
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102 | #else |
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103 | #ifdef TE_GO32 |
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104 | #define TARGET_FORMAT "coff-go32" |
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105 | #endif |
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106 | #ifdef OBJ_AOUT |
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107 | #define TARGET_FORMAT AOUT_TARGET_FORMAT |
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108 | #endif |
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109 | #endif |
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110 | |||
111 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 |
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112 | |||
113 | /* '$' may be used as immediate prefix. */ |
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114 | #undef LOCAL_LABELS_DOLLAR |
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115 | #define LOCAL_LABELS_DOLLAR 0 |
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116 | #undef LOCAL_LABELS_FB |
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117 | #define LOCAL_LABELS_FB 1 |
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118 | |||
119 | extern const char extra_symbol_chars[]; |
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120 | #define tc_symbol_chars extra_symbol_chars |
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121 | |||
122 | extern const char *i386_comment_chars; |
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123 | #define tc_comment_chars i386_comment_chars |
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124 | |||
125 | /* The name of the global offset table generated by the compiler. Allow |
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126 | this to be overridden if need be. */ |
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127 | #ifndef GLOBAL_OFFSET_TABLE_NAME |
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128 | #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" |
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129 | #endif |
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130 | |||
131 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) |
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132 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) |
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133 | #endif |
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6324 | serge | 134 | extern bfd_reloc_code_real_type x86_cons (expressionS *, int); |
5222 | serge | 135 | |
6324 | serge | 136 | #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC) \ |
137 | x86_cons_fix_new(FRAG, OFF, LEN, EXP, RELOC) |
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5222 | serge | 138 | extern void x86_cons_fix_new |
6324 | serge | 139 | (fragS *, unsigned int, unsigned int, expressionS *, bfd_reloc_code_real_type); |
5222 | serge | 140 | |
141 | #define TC_ADDRESS_BYTES x86_address_bytes |
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142 | extern int x86_address_bytes (void); |
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143 | |||
144 | #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ |
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145 | |||
146 | #define NO_RELOC BFD_RELOC_NONE |
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147 | |||
148 | void i386_validate_fix (struct fix *); |
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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) |
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152 | extern int tc_i386_fix_adjustable (struct fix *); |
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153 | |||
154 | /* Values passed to md_apply_fix don't include the symbol value. */ |
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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) |
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159 | #define EXTERN_FORCE_RELOC \ |
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160 | (OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
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161 | || OUTPUT_FLAVOR == bfd_target_coff_flavour) |
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162 | #else |
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163 | #define EXTERN_FORCE_RELOC \ |
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164 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) |
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165 | #endif |
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166 | |||
167 | /* This expression evaluates to true if the relocation is for a local |
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168 | object for which we still want to do the relocation at runtime. |
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169 | False if we are willing to perform this relocation while building |
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170 | the .o file. GOTOFF and GOT32 do not need to be checked here because |
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171 | they are not pcrel. .*/ |
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172 | |||
6324 | serge | 173 | #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
174 | (!(FIX)->fx_pcrel \ |
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175 | || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ |
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176 | || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ |
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177 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCRELX \ |
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178 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_REX_GOTPCRELX \ |
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5222 | serge | 179 | || TC_FORCE_RELOCATION (FIX)) |
180 | |||
181 | extern int i386_parse_name (char *, expressionS *, char *); |
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182 | #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) |
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183 | |||
184 | extern operatorT i386_operator (const char *name, unsigned int operands, char *); |
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185 | #define md_operator i386_operator |
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186 | |||
187 | extern int i386_need_index_operator (void); |
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188 | #define md_need_index_operator i386_need_index_operator |
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189 | |||
190 | #define md_register_arithmetic 0 |
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191 | |||
192 | extern const struct relax_type md_relax_table[]; |
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193 | #define TC_GENERIC_RELAX_TABLE md_relax_table |
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194 | |||
195 | extern int optimize_align_code; |
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196 | |||
197 | #define md_do_align(n, fill, len, max, around) \ |
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198 | if ((n) \ |
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199 | && !need_pass_2 \ |
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200 | && optimize_align_code \ |
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201 | && (!(fill) \ |
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202 | || ((char)*(fill) == (char)0x90 && (len) == 1)) \ |
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203 | && subseg_text_p (now_seg)) \ |
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204 | { \ |
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205 | frag_align_code ((n), (max)); \ |
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206 | goto around; \ |
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207 | } |
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208 | |||
209 | #define MAX_MEM_FOR_RS_ALIGN_CODE 31 |
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210 | |||
211 | extern void i386_align_code (fragS *, int); |
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212 | |||
213 | #define HANDLE_ALIGN(fragP) \ |
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214 | if (fragP->fr_type == rs_align_code) \ |
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215 | i386_align_code (fragP, (fragP->fr_next->fr_address \ |
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216 | - fragP->fr_address \ |
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217 | - fragP->fr_fix)); |
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218 | |||
219 | void i386_print_statistics (FILE *); |
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220 | #define tc_print_statistics i386_print_statistics |
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221 | |||
222 | extern unsigned int i386_frag_max_var (fragS *); |
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223 | #define md_frag_max_var i386_frag_max_var |
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224 | |||
225 | #define md_number_to_chars number_to_chars_littleendian |
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226 | |||
227 | enum processor_type |
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228 | { |
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229 | PROCESSOR_UNKNOWN, |
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230 | PROCESSOR_I386, |
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231 | PROCESSOR_I486, |
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232 | PROCESSOR_PENTIUM, |
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233 | PROCESSOR_PENTIUMPRO, |
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234 | PROCESSOR_PENTIUM4, |
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235 | PROCESSOR_NOCONA, |
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236 | PROCESSOR_CORE, |
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237 | PROCESSOR_CORE2, |
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238 | PROCESSOR_COREI7, |
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239 | PROCESSOR_L1OM, |
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240 | PROCESSOR_K1OM, |
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6324 | serge | 241 | PROCESSOR_IAMCU, |
5222 | serge | 242 | PROCESSOR_K6, |
243 | PROCESSOR_ATHLON, |
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244 | PROCESSOR_K8, |
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245 | PROCESSOR_GENERIC32, |
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246 | PROCESSOR_GENERIC64, |
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247 | PROCESSOR_AMDFAM10, |
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248 | PROCESSOR_BD, |
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6324 | serge | 249 | PROCESSOR_ZNVER, |
5222 | serge | 250 | PROCESSOR_BT |
251 | }; |
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252 | |||
253 | extern enum processor_type cpu_arch_tune; |
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254 | extern enum processor_type cpu_arch_isa; |
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255 | extern i386_cpu_flags cpu_arch_isa_flags; |
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256 | |||
257 | struct i386_tc_frag_data |
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258 | { |
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259 | enum processor_type isa; |
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260 | i386_cpu_flags isa_flags; |
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261 | enum processor_type tune; |
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262 | }; |
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263 | |||
264 | /* We need to emit the right NOP pattern in .align frags. This is |
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265 | done after the text-to-bits assembly pass, so we need to mark it with |
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266 | the isa/tune settings at the time the .align was assembled. */ |
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267 | #define TC_FRAG_TYPE struct i386_tc_frag_data |
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268 | |||
269 | #define TC_FRAG_INIT(FRAGP) \ |
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270 | do \ |
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271 | { \ |
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272 | (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \ |
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273 | (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \ |
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274 | (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \ |
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275 | } \ |
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276 | while (0) |
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277 | |||
278 | #ifdef SCO_ELF |
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279 | #define tc_init_after_args() sco_id () |
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280 | extern void sco_id (void); |
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281 | #endif |
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282 | |||
283 | #define WORKING_DOT_WORD 1 |
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284 | |||
285 | /* We want .cfi_* pseudo-ops for generating unwind info. */ |
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286 | #define TARGET_USE_CFIPOP 1 |
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287 | |||
288 | extern unsigned int x86_dwarf2_return_column; |
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289 | #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column |
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290 | |||
291 | extern int x86_cie_data_alignment; |
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292 | #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment |
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293 | |||
294 | extern int x86_dwarf2_addr_size (void); |
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295 | #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size () |
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296 | |||
297 | #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum |
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298 | extern void tc_x86_parse_to_dw2regnum (expressionS *); |
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299 | |||
300 | #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions |
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301 | extern void tc_x86_frame_initial_instructions (void); |
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302 | |||
303 | #define md_elf_section_type(str,len) i386_elf_section_type (str, len) |
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304 | extern int i386_elf_section_type (const char *, size_t); |
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305 | |||
306 | #ifdef TE_SOLARIS |
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307 | #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec) |
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308 | extern void i386_solaris_fix_up_eh_frame (segT); |
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309 | #endif |
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310 | |||
311 | /* Support for SHF_X86_64_LARGE */ |
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312 | extern bfd_vma x86_64_section_word (char *, size_t); |
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313 | extern bfd_vma x86_64_section_letter (int, char **); |
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314 | #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG) |
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315 | #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN) |
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316 | |||
317 | #ifdef TE_PE |
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318 | |||
319 | #define O_secrel O_md1 |
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320 | |||
321 | #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset |
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322 | void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int); |
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323 | |||
324 | #endif /* TE_PE */ |
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325 | |||
326 | /* X_add_symbol:X_op_symbol (Intel mode only) */ |
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327 | #define O_full_ptr O_md2 |
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328 | |||
329 | #ifdef OBJ_MACH_O |
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330 | |||
331 | #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX)) |
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332 | |||
333 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \ |
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334 | (obj_mach_o_force_reloc_sub_same (FIX, SEG)) |
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335 | |||
336 | #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \ |
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337 | (obj_mach_o_force_reloc_sub_local (FIX, SEG)) |
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338 | |||
339 | #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1 |
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340 | |||
341 | #endif /* OBJ_MACH_O */ |
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342 | |||
343 | #endif /* TC_I386 */ |