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5222 | serge | 1 | /* tc-i386.h -- Header file for tc-i386.c |
2 | Copyright 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
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3 | 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
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4 | Free Software Foundation, Inc. |
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5 | |||
6 | This file is part of GAS, the GNU Assembler. |
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7 | |||
8 | GAS is free software; you can redistribute it and/or modify |
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9 | it under the terms of the GNU General Public License as published by |
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10 | the Free Software Foundation; either version 3, or (at your option) |
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11 | any later version. |
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12 | |||
13 | GAS is distributed in the hope that it will be useful, |
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14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | GNU General Public License for more details. |
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17 | |||
18 | You should have received a copy of the GNU General Public License |
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19 | along with GAS; see the file COPYING. If not, write to the Free |
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20 | Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA |
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21 | 02110-1301, USA. */ |
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22 | |||
23 | #ifndef TC_I386 |
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24 | #define TC_I386 1 |
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25 | |||
26 | #include "opcodes/i386-opc.h" |
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27 | |||
28 | struct fix; |
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29 | |||
30 | #define TARGET_BYTES_BIG_ENDIAN 0 |
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31 | |||
32 | #define TARGET_ARCH (i386_arch ()) |
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33 | #define TARGET_MACH (i386_mach ()) |
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34 | extern enum bfd_architecture i386_arch (void); |
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35 | extern unsigned long i386_mach (void); |
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36 | |||
37 | #ifdef TE_FreeBSD |
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38 | #define AOUT_TARGET_FORMAT "a.out-i386-freebsd" |
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39 | #endif |
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40 | #ifdef TE_NetBSD |
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41 | #define AOUT_TARGET_FORMAT "a.out-i386-netbsd" |
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42 | #endif |
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43 | #ifdef TE_386BSD |
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44 | #define AOUT_TARGET_FORMAT "a.out-i386-bsd" |
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45 | #endif |
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46 | #ifdef TE_LINUX |
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47 | #define AOUT_TARGET_FORMAT "a.out-i386-linux" |
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48 | #endif |
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49 | #ifdef TE_Mach |
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50 | #define AOUT_TARGET_FORMAT "a.out-mach3" |
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51 | #endif |
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52 | #ifdef TE_DYNIX |
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53 | #define AOUT_TARGET_FORMAT "a.out-i386-dynix" |
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54 | #endif |
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55 | #ifndef AOUT_TARGET_FORMAT |
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56 | #define AOUT_TARGET_FORMAT "a.out-i386" |
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57 | #endif |
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58 | |||
59 | #ifdef TE_FreeBSD |
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60 | #define ELF_TARGET_FORMAT "elf32-i386-freebsd" |
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61 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-freebsd" |
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62 | #elif defined (TE_VXWORKS) |
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63 | #define ELF_TARGET_FORMAT "elf32-i386-vxworks" |
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64 | #elif defined (TE_NACL) |
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65 | #define ELF_TARGET_FORMAT "elf32-i386-nacl" |
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66 | #define ELF_TARGET_FORMAT32 "elf32-x86-64-nacl" |
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67 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-nacl" |
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68 | #endif |
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69 | |||
70 | #ifdef TE_SOLARIS |
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71 | #define ELF_TARGET_FORMAT "elf32-i386-sol2" |
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72 | #define ELF_TARGET_FORMAT64 "elf64-x86-64-sol2" |
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73 | #endif |
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74 | |||
75 | #ifndef ELF_TARGET_FORMAT |
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76 | #define ELF_TARGET_FORMAT "elf32-i386" |
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77 | #endif |
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78 | |||
79 | #ifndef ELF_TARGET_FORMAT64 |
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80 | #define ELF_TARGET_FORMAT64 "elf64-x86-64" |
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81 | #endif |
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82 | |||
83 | #ifndef ELF_TARGET_FORMAT32 |
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84 | #define ELF_TARGET_FORMAT32 "elf32-x86-64" |
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85 | #endif |
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86 | |||
87 | #ifndef ELF_TARGET_L1OM_FORMAT |
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88 | #define ELF_TARGET_L1OM_FORMAT "elf64-l1om" |
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89 | #endif |
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90 | |||
91 | #ifndef ELF_TARGET_K1OM_FORMAT |
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92 | #define ELF_TARGET_K1OM_FORMAT "elf64-k1om" |
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93 | #endif |
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94 | |||
95 | #if ((defined (OBJ_MAYBE_COFF) && defined (OBJ_MAYBE_AOUT)) \ |
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96 | || defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ |
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97 | || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) |
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98 | extern const char *i386_target_format (void); |
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99 | #define TARGET_FORMAT i386_target_format () |
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100 | #else |
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101 | #ifdef TE_GO32 |
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102 | #define TARGET_FORMAT "coff-go32" |
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103 | #endif |
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104 | #ifdef OBJ_AOUT |
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105 | #define TARGET_FORMAT AOUT_TARGET_FORMAT |
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106 | #endif |
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107 | #endif |
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108 | |||
109 | #if (defined (OBJ_MAYBE_ELF) || defined (OBJ_ELF)) |
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110 | #define md_end i386_elf_emit_arch_note |
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111 | extern void i386_elf_emit_arch_note (void); |
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112 | #endif |
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113 | |||
114 | #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0 |
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115 | |||
116 | /* '$' may be used as immediate prefix. */ |
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117 | #undef LOCAL_LABELS_DOLLAR |
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118 | #define LOCAL_LABELS_DOLLAR 0 |
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119 | #undef LOCAL_LABELS_FB |
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120 | #define LOCAL_LABELS_FB 1 |
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121 | |||
122 | extern const char extra_symbol_chars[]; |
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123 | #define tc_symbol_chars extra_symbol_chars |
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124 | |||
125 | extern const char *i386_comment_chars; |
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126 | #define tc_comment_chars i386_comment_chars |
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127 | |||
128 | /* The name of the global offset table generated by the compiler. Allow |
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129 | this to be overridden if need be. */ |
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130 | #ifndef GLOBAL_OFFSET_TABLE_NAME |
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131 | #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" |
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132 | #endif |
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133 | |||
134 | #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)) && !defined (LEX_AT) |
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135 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) x86_cons (EXP, NBYTES) |
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136 | #endif |
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137 | extern void x86_cons (expressionS *, int); |
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138 | |||
139 | #define TC_CONS_FIX_NEW(FRAG,OFF,LEN,EXP) x86_cons_fix_new(FRAG, OFF, LEN, EXP) |
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140 | extern void x86_cons_fix_new |
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141 | (fragS *, unsigned int, unsigned int, expressionS *); |
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142 | |||
143 | #define TC_ADDRESS_BYTES x86_address_bytes |
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144 | extern int x86_address_bytes (void); |
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145 | |||
146 | #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ |
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147 | |||
148 | #define NO_RELOC BFD_RELOC_NONE |
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149 | |||
150 | void i386_validate_fix (struct fix *); |
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151 | #define TC_VALIDATE_FIX(FIX,SEGTYPE,SKIP) i386_validate_fix(FIX) |
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152 | |||
153 | #define tc_fix_adjustable(X) tc_i386_fix_adjustable(X) |
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154 | extern int tc_i386_fix_adjustable (struct fix *); |
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155 | |||
156 | /* Values passed to md_apply_fix don't include the symbol value. */ |
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157 | #define MD_APPLY_SYM_VALUE(FIX) 0 |
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158 | |||
159 | /* ELF wants external syms kept, as does PE COFF. */ |
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160 | #if defined (TE_PE) && defined (STRICT_PE_FORMAT) |
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161 | #define EXTERN_FORCE_RELOC \ |
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162 | (OUTPUT_FLAVOR == bfd_target_elf_flavour \ |
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163 | || OUTPUT_FLAVOR == bfd_target_coff_flavour) |
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164 | #else |
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165 | #define EXTERN_FORCE_RELOC \ |
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166 | (OUTPUT_FLAVOR == bfd_target_elf_flavour) |
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167 | #endif |
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168 | |||
169 | /* This expression evaluates to true if the relocation is for a local |
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170 | object for which we still want to do the relocation at runtime. |
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171 | False if we are willing to perform this relocation while building |
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172 | the .o file. GOTOFF and GOT32 do not need to be checked here because |
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173 | they are not pcrel. .*/ |
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174 | |||
175 | #define TC_FORCE_RELOCATION_LOCAL(FIX) \ |
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176 | (!(FIX)->fx_pcrel \ |
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177 | || (FIX)->fx_r_type == BFD_RELOC_386_PLT32 \ |
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178 | || (FIX)->fx_r_type == BFD_RELOC_386_GOTPC \ |
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179 | || (FIX)->fx_r_type == BFD_RELOC_X86_64_GOTPCREL \ |
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180 | || TC_FORCE_RELOCATION (FIX)) |
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181 | |||
182 | extern int i386_parse_name (char *, expressionS *, char *); |
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183 | #define md_parse_name(s, e, m, c) i386_parse_name (s, e, c) |
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184 | |||
185 | extern operatorT i386_operator (const char *name, unsigned int operands, char *); |
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186 | #define md_operator i386_operator |
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187 | |||
188 | extern int i386_need_index_operator (void); |
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189 | #define md_need_index_operator i386_need_index_operator |
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190 | |||
191 | #define md_register_arithmetic 0 |
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192 | |||
193 | extern const struct relax_type md_relax_table[]; |
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194 | #define TC_GENERIC_RELAX_TABLE md_relax_table |
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195 | |||
196 | extern int optimize_align_code; |
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197 | |||
198 | #define md_do_align(n, fill, len, max, around) \ |
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199 | if ((n) \ |
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200 | && !need_pass_2 \ |
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201 | && optimize_align_code \ |
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202 | && (!(fill) \ |
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203 | || ((char)*(fill) == (char)0x90 && (len) == 1)) \ |
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204 | && subseg_text_p (now_seg)) \ |
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205 | { \ |
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206 | frag_align_code ((n), (max)); \ |
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207 | goto around; \ |
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208 | } |
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209 | |||
210 | #define MAX_MEM_FOR_RS_ALIGN_CODE 31 |
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211 | |||
212 | extern void i386_align_code (fragS *, int); |
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213 | |||
214 | #define HANDLE_ALIGN(fragP) \ |
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215 | if (fragP->fr_type == rs_align_code) \ |
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216 | i386_align_code (fragP, (fragP->fr_next->fr_address \ |
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217 | - fragP->fr_address \ |
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218 | - fragP->fr_fix)); |
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219 | |||
220 | void i386_print_statistics (FILE *); |
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221 | #define tc_print_statistics i386_print_statistics |
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222 | |||
223 | extern unsigned int i386_frag_max_var (fragS *); |
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224 | #define md_frag_max_var i386_frag_max_var |
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225 | |||
226 | #define md_number_to_chars number_to_chars_littleendian |
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227 | |||
228 | enum processor_type |
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229 | { |
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230 | PROCESSOR_UNKNOWN, |
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231 | PROCESSOR_I386, |
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232 | PROCESSOR_I486, |
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233 | PROCESSOR_PENTIUM, |
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234 | PROCESSOR_PENTIUMPRO, |
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235 | PROCESSOR_PENTIUM4, |
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236 | PROCESSOR_NOCONA, |
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237 | PROCESSOR_CORE, |
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238 | PROCESSOR_CORE2, |
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239 | PROCESSOR_COREI7, |
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240 | PROCESSOR_L1OM, |
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241 | PROCESSOR_K1OM, |
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242 | PROCESSOR_K6, |
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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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249 | PROCESSOR_BT |
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250 | }; |
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251 | |||
252 | extern enum processor_type cpu_arch_tune; |
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253 | extern enum processor_type cpu_arch_isa; |
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254 | extern i386_cpu_flags cpu_arch_isa_flags; |
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255 | |||
256 | struct i386_tc_frag_data |
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257 | { |
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258 | enum processor_type isa; |
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259 | i386_cpu_flags isa_flags; |
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260 | enum processor_type tune; |
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261 | }; |
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262 | |||
263 | /* We need to emit the right NOP pattern in .align frags. This is |
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264 | done after the text-to-bits assembly pass, so we need to mark it with |
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265 | the isa/tune settings at the time the .align was assembled. */ |
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266 | #define TC_FRAG_TYPE struct i386_tc_frag_data |
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267 | |||
268 | #define TC_FRAG_INIT(FRAGP) \ |
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269 | do \ |
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270 | { \ |
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271 | (FRAGP)->tc_frag_data.isa = cpu_arch_isa; \ |
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272 | (FRAGP)->tc_frag_data.isa_flags = cpu_arch_isa_flags; \ |
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273 | (FRAGP)->tc_frag_data.tune = cpu_arch_tune; \ |
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274 | } \ |
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275 | while (0) |
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276 | |||
277 | #ifdef SCO_ELF |
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278 | #define tc_init_after_args() sco_id () |
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279 | extern void sco_id (void); |
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280 | #endif |
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281 | |||
282 | #define WORKING_DOT_WORD 1 |
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283 | |||
284 | /* We want .cfi_* pseudo-ops for generating unwind info. */ |
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285 | #define TARGET_USE_CFIPOP 1 |
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286 | |||
287 | extern unsigned int x86_dwarf2_return_column; |
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288 | #define DWARF2_DEFAULT_RETURN_COLUMN x86_dwarf2_return_column |
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289 | |||
290 | extern int x86_cie_data_alignment; |
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291 | #define DWARF2_CIE_DATA_ALIGNMENT x86_cie_data_alignment |
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292 | |||
293 | extern int x86_dwarf2_addr_size (void); |
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294 | #define DWARF2_ADDR_SIZE(bfd) x86_dwarf2_addr_size () |
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295 | |||
296 | #define tc_parse_to_dw2regnum tc_x86_parse_to_dw2regnum |
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297 | extern void tc_x86_parse_to_dw2regnum (expressionS *); |
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298 | |||
299 | #define tc_cfi_frame_initial_instructions tc_x86_frame_initial_instructions |
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300 | extern void tc_x86_frame_initial_instructions (void); |
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301 | |||
302 | #define md_elf_section_type(str,len) i386_elf_section_type (str, len) |
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303 | extern int i386_elf_section_type (const char *, size_t); |
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304 | |||
305 | #ifdef TE_SOLARIS |
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306 | #define md_fix_up_eh_frame(sec) i386_solaris_fix_up_eh_frame (sec) |
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307 | extern void i386_solaris_fix_up_eh_frame (segT); |
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308 | #endif |
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309 | |||
310 | /* Support for SHF_X86_64_LARGE */ |
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311 | extern bfd_vma x86_64_section_word (char *, size_t); |
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312 | extern bfd_vma x86_64_section_letter (int, char **); |
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313 | #define md_elf_section_letter(LETTER, PTR_MSG) x86_64_section_letter (LETTER, PTR_MSG) |
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314 | #define md_elf_section_word(STR, LEN) x86_64_section_word (STR, LEN) |
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315 | |||
316 | #ifdef TE_PE |
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317 | |||
318 | #define O_secrel O_md1 |
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319 | |||
320 | #define TC_DWARF2_EMIT_OFFSET tc_pe_dwarf2_emit_offset |
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321 | void tc_pe_dwarf2_emit_offset (symbolS *, unsigned int); |
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322 | |||
323 | #endif /* TE_PE */ |
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324 | |||
325 | /* X_add_symbol:X_op_symbol (Intel mode only) */ |
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326 | #define O_full_ptr O_md2 |
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327 | |||
328 | #ifdef OBJ_MACH_O |
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329 | |||
330 | #define TC_FORCE_RELOCATION(FIX) (obj_mach_o_force_reloc (FIX)) |
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331 | |||
332 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX,SEG) \ |
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333 | (obj_mach_o_force_reloc_sub_same (FIX, SEG)) |
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334 | |||
335 | #define TC_FORCE_RELOCATION_SUB_LOCAL(FIX,SEG) \ |
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336 | (obj_mach_o_force_reloc_sub_local (FIX, SEG)) |
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337 | |||
338 | #define TC_VALIDATE_FIX_SUB(FIX, SEG) 1 |
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339 | |||
340 | #endif /* OBJ_MACH_O */ |
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341 | |||
342 | #endif /* TC_I386 */ |