Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/mips/iris6.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 22 Mar 2011 17:18:12 +0900 |
parents | b7f97abdc517 |
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rev | line source |
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1 /* Definitions of target machine for GNU compiler. IRIX 6.5 version. |
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2 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 2000, |
67
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3 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
0 | 4 Free Software Foundation, Inc. |
5 | |
6 This file is part of GCC. | |
7 | |
8 GCC 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) | |
11 any later version. | |
12 | |
13 GCC 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 GCC; see the file COPYING3. If not see | |
20 <http://www.gnu.org/licenses/>. */ | |
21 | |
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22 /* We are compiling for IRIX 6 now. */ |
0 | 23 #undef TARGET_IRIX6 |
24 #define TARGET_IRIX6 1 | |
25 | |
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26 #undef MACHINE_TYPE |
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27 #define MACHINE_TYPE "SGI running IRIX 6.5" |
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28 |
0 | 29 /* Default to -mabi=n32 and -mips3. */ |
30 #undef MULTILIB_DEFAULTS | |
31 #define MULTILIB_DEFAULTS { "mabi=n32" } | |
32 | |
33 /* Force the default ABI onto the command line in order to make the specs | |
63
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34 easier to write. */ |
0 | 35 #undef DRIVER_SELF_SPECS |
36 #define DRIVER_SELF_SPECS \ | |
37 "%{!mabi=*: -mabi=n32}", \ | |
38 /* Configuration-independent MIPS rules. */ \ | |
39 BASE_DRIVER_SELF_SPECS | |
40 | |
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41 /* IRIX 6.5 has the float and long double forms of math functions. */ |
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42 #define TARGET_C99_FUNCTIONS 1 |
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43 |
63
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44 /* MIPS specific debugging info */ |
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45 #define MIPS_DEBUGGING_INFO 1 |
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46 |
0 | 47 /* Force the generation of dwarf .debug_frame sections even if not |
48 compiling -g. This guarantees that we can unwind the stack. */ | |
49 #define DWARF2_FRAME_INFO 1 | |
50 | |
51 /* The system unwinder in libexc requires a specific dwarf return address | |
52 column to work. */ | |
53 #undef DWARF_FRAME_RETURN_COLUMN | |
54 #define DWARF_FRAME_RETURN_COLUMN (FP_REG_LAST + 1) | |
55 | |
63
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56 /* The size in bytes of a DWARF field indicating an offset or length |
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57 relative to a debug info section, specified to be 4 bytes in the DWARF-2 |
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58 specification. The SGI/MIPS ABI defines it to be the same as PTR_SIZE. */ |
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59 #define DWARF_OFFSET_SIZE PTR_SIZE |
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60 |
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61 /* The size in bytes of the initial length field in a debug info |
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62 section. The DWARF 3 (draft) specification defines this to be |
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63 either 4 or 12 (with a 4-byte "escape" word when it's 12), but the |
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64 SGI/MIPS ABI predates this standard and defines it to be the same |
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65 as DWARF_OFFSET_SIZE. */ |
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66 #define DWARF_INITIAL_LENGTH_SIZE DWARF_OFFSET_SIZE |
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67 |
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68 /* MIPS assemblers don't have the usual .set foo,bar construct; |
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69 .set is used for assembler options instead. */ |
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70 #undef SET_ASM_OP |
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71 #define ASM_OUTPUT_DEF(FILE, LABEL1, LABEL2) \ |
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72 do \ |
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73 { \ |
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74 fputc ('\t', FILE); \ |
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75 assemble_name (FILE, LABEL1); \ |
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76 fputs (" = ", FILE); \ |
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77 assemble_name (FILE, LABEL2); \ |
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78 fputc ('\n', FILE); \ |
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79 } \ |
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80 while (0) |
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81 |
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82 #undef LOCAL_LABEL_PREFIX |
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83 #define LOCAL_LABEL_PREFIX (TARGET_NEWABI ? "." : "$") |
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84 |
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85 #undef ASM_DECLARE_OBJECT_NAME |
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86 #define ASM_DECLARE_OBJECT_NAME mips_declare_object_name |
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87 |
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88 #undef ASM_FINISH_DECLARE_OBJECT |
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89 #define ASM_FINISH_DECLARE_OBJECT mips_finish_declare_object |
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90 |
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91 /* The native IRIX 6 linker does not support merging without a special |
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92 elspec(5) file. */ |
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93 #ifndef IRIX_USING_GNU_LD |
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94 #undef HAVE_GAS_SHF_MERGE |
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95 #define HAVE_GAS_SHF_MERGE 0 |
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96 #endif |
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97 |
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98 /* Specify wchar_t types. */ |
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99 #undef WCHAR_TYPE |
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100 #define WCHAR_TYPE (Pmode == DImode ? "int" : "long int") |
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101 |
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102 #undef WCHAR_TYPE_SIZE |
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103 #define WCHAR_TYPE_SIZE INT_TYPE_SIZE |
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104 |
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105 /* Same for wint_t. */ |
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106 #undef WINT_TYPE |
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107 #define WINT_TYPE (Pmode == DImode ? "int" : "long int") |
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108 |
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109 #undef WINT_TYPE_SIZE |
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110 #define WINT_TYPE_SIZE 32 |
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111 |
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112 /* C99 stdint.h types. */ |
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113 #define INT8_TYPE "signed char" |
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114 #define INT16_TYPE "short int" |
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115 #define INT32_TYPE "int" |
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116 #define INT64_TYPE "long long int" |
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117 #define UINT8_TYPE "unsigned char" |
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118 #define UINT16_TYPE "short unsigned int" |
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119 #define UINT32_TYPE "unsigned int" |
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120 #define UINT64_TYPE "long long unsigned int" |
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121 |
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122 #define INT_LEAST8_TYPE "signed char" |
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123 #define INT_LEAST16_TYPE "short int" |
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124 #define INT_LEAST32_TYPE "int" |
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125 #define INT_LEAST64_TYPE "long long int" |
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126 #define UINT_LEAST8_TYPE "unsigned char" |
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127 #define UINT_LEAST16_TYPE "short unsigned int" |
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128 #define UINT_LEAST32_TYPE "unsigned int" |
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129 #define UINT_LEAST64_TYPE "long long unsigned int" |
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130 |
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131 #define INT_FAST8_TYPE "signed char" |
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132 #define INT_FAST16_TYPE "short int" |
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133 #define INT_FAST32_TYPE "int" |
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134 #define INT_FAST64_TYPE "long long int" |
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135 #define UINT_FAST8_TYPE "unsigned char" |
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136 #define UINT_FAST16_TYPE "short unsigned int" |
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137 #define UINT_FAST32_TYPE "unsigned int" |
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138 #define UINT_FAST64_TYPE "long long unsigned int" |
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139 |
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140 #define INTMAX_TYPE "long long int" |
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141 #define UINTMAX_TYPE "long long unsigned int" |
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142 |
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143 #define INTPTR_TYPE "long int" |
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144 #define UINTPTR_TYPE "long unsigned int" |
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145 |
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146 #define SIG_ATOMIC_TYPE "int" |
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147 |
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148 /* Plain char is unsigned in the SGI compiler. */ |
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149 #undef DEFAULT_SIGNED_CHAR |
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150 #define DEFAULT_SIGNED_CHAR 0 |
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151 |
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152 #define TARGET_OS_CPP_BUILTINS() \ |
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153 do \ |
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154 { \ |
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155 builtin_define_std ("host_mips"); \ |
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156 builtin_define_std ("sgi"); \ |
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157 builtin_define_std ("unix"); \ |
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158 builtin_define_std ("SYSTYPE_SVR4"); \ |
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159 builtin_define ("_MODERN_C"); \ |
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160 builtin_define ("_SVR4_SOURCE"); \ |
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161 builtin_define ("__DSO__"); \ |
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162 builtin_assert ("system=unix"); \ |
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163 builtin_assert ("system=svr4"); \ |
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164 builtin_assert ("machine=sgi"); \ |
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165 \ |
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166 if (!ISA_MIPS1 && !ISA_MIPS2) \ |
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167 builtin_define ("_COMPILER_VERSION=601"); \ |
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168 \ |
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169 /* We must always define _LONGLONG, even when -ansi is \ |
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170 used, because IRIX 5 system header files require it. \ |
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171 This is OK, because gcc never warns when long long \ |
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172 is used in system header files. \ |
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173 \ |
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174 An alternative would be to support the SGI builtin \ |
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175 type __long_long. */ \ |
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176 builtin_define ("_LONGLONG"); \ |
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177 \ |
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178 /* IRIX 6.5.18 and above provide many ISO C99 \ |
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179 features protected by the __c99 macro. \ |
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180 libstdc++ v3 needs them as well. */ \ |
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181 if (TARGET_IRIX6) \ |
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182 if (flag_isoc99 || c_dialect_cxx ()) \ |
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183 builtin_define ("__c99"); \ |
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184 \ |
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185 /* The GNU C++ standard library requires that \ |
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186 __EXTENSIONS__ and _SGI_SOURCE be defined on at \ |
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187 least IRIX 6.2 and probably all IRIX 6 prior to 6.5. \ |
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188 We don't need this on IRIX 6.5 itself, but it \ |
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189 shouldn't hurt other than the namespace pollution. */ \ |
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190 if (!flag_iso || (TARGET_IRIX6 && c_dialect_cxx ())) \ |
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191 { \ |
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192 builtin_define ("__EXTENSIONS__"); \ |
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193 builtin_define ("_SGI_SOURCE"); \ |
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194 } \ |
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195 } \ |
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196 while (0) |
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197 |
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198 #undef SUBTARGET_CC1_SPEC |
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199 #define SUBTARGET_CC1_SPEC "%{static: -mno-abicalls}" |
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200 |
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201 #undef SUBTARGET_CPP_SPEC |
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202 #define SUBTARGET_CPP_SPEC "%{pthread:-D_REENTRANT}" |
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203 |
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204 #undef INIT_SECTION_ASM_OP |
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205 #define INIT_SECTION_ASM_OP "\t.section\t.gcc_init,\"ax\",@progbits" |
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206 |
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207 #undef FINI_SECTION_ASM_OP |
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208 #define FINI_SECTION_ASM_OP "\t.section\t.gcc_fini,\"ax\",@progbits" |
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209 |
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210 #ifdef IRIX_USING_GNU_LD |
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211 #define IRIX_NO_UNRESOLVED "" |
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212 #else |
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213 #define IRIX_NO_UNRESOLVED "-no_unresolved" |
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214 #endif |
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215 |
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216 #ifdef IRIX_USING_GNU_LD |
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217 #define SUBTARGET_DONT_WARN_UNUSED_SPEC "" |
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218 #define SUBTARGET_WARN_UNUSED_SPEC "" |
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219 #else |
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220 #define SUBTARGET_DONT_WARN_UNUSED_SPEC "-dont_warn_unused" |
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221 #define SUBTARGET_WARN_UNUSED_SPEC "-warn_unused" |
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222 #endif |
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223 |
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224 /* Profiling is supported via libprof1.a not -lc_p as in IRIX 3. */ |
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225 #undef STARTFILE_SPEC |
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226 #define STARTFILE_SPEC \ |
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227 "%{!shared: \ |
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228 %{mabi=n32: \ |
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229 %{mips4:%{pg:/usr/lib32/mips4/gcrt1.o%s} \ |
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230 %{!pg:%{p:/usr/lib32/mips4/mcrt1.o%s /usr/lib32/mips4/libprof1.a%s} \ |
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231 %{!p:/usr/lib32/mips4/crt1.o%s}}} \ |
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232 %{!mips4:%{pg:/usr/lib32/mips3/gcrt1.o%s} \ |
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233 %{!pg:%{p:/usr/lib32/mips3/mcrt1.o%s /usr/lib32/mips3/libprof1.a%s} \ |
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234 %{!p:/usr/lib32/mips3/crt1.o%s}}}} \ |
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235 %{mabi=64: \ |
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236 %{mips4:%{pg:/usr/lib64/mips4/gcrt1.o} \ |
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237 %{!pg:%{p:/usr/lib64/mips4/mcrt1.o /usr/lib64/mips4/libprof1.a} \ |
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238 %{!p:/usr/lib64/mips4/crt1.o}}} \ |
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239 %{!mips4:%{pg:/usr/lib64/mips3/gcrt1.o} \ |
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240 %{!pg:%{p:/usr/lib64/mips3/mcrt1.o /usr/lib64/mips3/libprof1.a} \ |
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241 %{!p:/usr/lib64/mips3/crt1.o}}}}} \ |
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242 irix-crti.o%s crtbegin.o%s" |
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243 |
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244 #undef LIB_SPEC |
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245 #define LIB_SPEC \ |
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246 "%{mabi=n32: %{mips4:-L/usr/lib32/mips4} %{!mips4:-L/usr/lib32/mips3} \ |
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247 -L/usr/lib32} \ |
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248 %{mabi=64: %{mips4:-L/usr/lib64/mips4} %{!mips4:-L/usr/lib64/mips3} \ |
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249 -L/usr/lib64} \ |
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250 %{!shared:" \ |
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251 SUBTARGET_DONT_WARN_UNUSED_SPEC \ |
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252 " %{pthread:-lpthread} %{p:libprof1.a%s}%{pg:libprof1.a%s} -lc " \ |
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253 SUBTARGET_WARN_UNUSED_SPEC "}" |
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254 |
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255 /* Avoid getting two warnings for libgcc.a everytime we link. libgcc.a |
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256 contains references to copysignl, so link with libm to resolve them. */ |
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257 #undef LIBGCC_SPEC |
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258 #define LIBGCC_SPEC \ |
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259 SUBTARGET_DONT_WARN_UNUSED_SPEC " -lgcc -lm " SUBTARGET_WARN_UNUSED_SPEC |
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260 |
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261 #undef ENDFILE_SPEC |
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262 #define ENDFILE_SPEC \ |
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263 "crtend.o%s irix-crtn.o%s \ |
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264 %{!shared: \ |
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265 %{mabi=n32:%{mips4:/usr/lib32/mips4/crtn.o%s}\ |
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266 %{!mips4:/usr/lib32/mips3/crtn.o%s}}\ |
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267 %{mabi=64:%{mips4:/usr/lib64/mips4/crtn.o%s}\ |
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268 %{!mips4:/usr/lib64/mips3/crtn.o%s}}}" |
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269 |
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270 /* Generic part of the LINK_SPEC. */ |
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271 #undef LINK_SPEC |
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272 #define LINK_SPEC "\ |
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273 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \ |
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274 %{bestGnum} %{shared} %{non_shared} \ |
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275 %{call_shared} %{no_archive} %{exact_version} \ |
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276 %{!shared: \ |
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277 %{!non_shared: %{!call_shared:%{!r: -call_shared " IRIX_NO_UNRESOLVED "}}}} \ |
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278 %{rpath} %{!r: -init __gcc_init -fini __gcc_fini} " IRIX_SUBTARGET_LINK_SPEC |
0 | 279 |
280 #ifdef IRIX_USING_GNU_LD | |
281 #define IRIX_SUBTARGET_LINK_SPEC \ | |
63
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282 "%{mabi=n32: -melf32bmipn32}%{mabi=64: -melf64bmip}" |
0 | 283 #else |
284 /* Explicitly hide crt symbols that would normally be marked with | |
285 a "hidden" visibility attribute. | |
286 | |
287 We have traditionally disabled this attribute when using the | |
288 native linker because the native linker's visibility support is | |
289 not fully-compatible with the GNU linker's. In particular, the | |
290 native linker does not pull in archive objects purely to resolve | |
291 references to the object's hidden symbols, whereas the GNU | |
292 linker does. | |
293 | |
294 The gcc build system currently hides symbols in some static | |
295 libraries (typically libgcov.a or libgcc.a) whenever visibility | |
296 attributes are supported. On targets with GNU semantics, this | |
297 makes sure that uses of libx.so symbols in one dynamic object are | |
298 not resolved to libx.a symbols in another dynamic object. But | |
299 on targets with IRIX semantics, hiding the symbols prevents the | |
300 static archive from working at all. | |
301 | |
302 It would probably be better to enable visiblity attributes for | |
303 IRIX ld and disable the static archives versioning. It shouldn't | |
304 make anything worse, since libx.a symbols are global by default | |
305 anyway. However, no-one has volunteered to do this yet. */ | |
306 | |
307 #define IRIX_SUBTARGET_LINK_SPEC \ | |
308 "%{w} -_SYSTYPE_SVR4 -woff 131 \ | |
309 %{shared:-hidden_symbol __dso_handle} \ | |
63
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310 %{mabi=n32: -n32}%{mabi=64: -64}%{!mabi*: -n32}" |
0 | 311 #endif |
312 | |
63
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313 /* A linker error can empirically be avoided by removing duplicate |
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314 library search directories. */ |
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315 #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 1 |
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316 |
67
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317 /* The SGI linker doesn't understand constructor priorities. */ |
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318 #ifndef IRIX_USING_GNU_LD |
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319 #define SUPPORTS_INIT_PRIORITY 0 |
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320 #endif |
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321 |
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322 /* Add -g to mips.h default to avoid confusing gas with local symbols |
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323 generated from stabs info. */ |
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324 #undef NM_FLAGS |
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325 #define NM_FLAGS "-Bng" |
0 | 326 |
63
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327 /* The system header files are C++ aware. */ |
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328 /* ??? Unfortunately, most but not all of the headers are C++ aware. |
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329 Specifically, curses.h is not, and as a consequence, defining this |
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330 used to prevent libg++ building. This is no longer the case so |
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331 define it again to prevent other problems, e.g. with getopt in |
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332 unistd.h. We still need some way to fix just those files that need |
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333 fixing. */ |
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334 #define NO_IMPLICIT_EXTERN_C 1 |
0 | 335 |
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336 /* -G is incompatible with -KPIC which is the default, so only allow objects |
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337 in the small data section if the user explicitly asks for it. */ |
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338 #undef MIPS_DEFAULT_GVALUE |
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339 #define MIPS_DEFAULT_GVALUE 0 |
0 | 340 |
341 #define MIPS_TFMODE_FORMAT mips_extended_format |