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1 /* Operating system specific defines to be used when targeting GCC for
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2 hosting on Windows32, using GNU tools and the Windows32 API Library.
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008,
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4 2009 Free Software Foundation, Inc.
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5
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6 This file is part of GCC.
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7
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8 GCC 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
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13 GCC 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
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 #undef TARGET_VERSION
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23 #if TARGET_64BIT_DEFAULT
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24 #define TARGET_VERSION fprintf (stderr,"(x86_64 MinGW");
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25 #else
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26 #define TARGET_VERSION fprintf (stderr," (x86 MinGW)");
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27 #endif
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28
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29 /* See i386/crtdll.h for an alternative definition. _INTEGRAL_MAX_BITS
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30 is for compatibility with native compiler. */
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31 #define EXTRA_OS_CPP_BUILTINS() \
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32 do \
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33 { \
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34 builtin_define ("__MSVCRT__"); \
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35 builtin_define ("__MINGW32__"); \
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36 builtin_define ("_WIN32"); \
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37 builtin_define_std ("WIN32"); \
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38 builtin_define_std ("WINNT"); \
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39 builtin_define_with_int_value ("_INTEGRAL_MAX_BITS", \
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40 TYPE_PRECISION (intmax_type_node));\
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41 if (TARGET_64BIT && DEFAULT_ABI == MS_ABI) \
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42 { \
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43 builtin_define ("__MINGW64__"); \
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44 builtin_define_std ("WIN64"); \
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45 builtin_define_std ("_WIN64"); \
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46 } \
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47 } \
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48 while (0)
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49
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50 /* Override the standard choice of /usr/include as the default prefix
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51 to try when searching for header files. */
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52 #undef STANDARD_INCLUDE_DIR
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53 #if TARGET_64BIT_DEFAULT
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54 #define STANDARD_INCLUDE_DIR "/mingw/include64"
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55 #else
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56 #define STANDARD_INCLUDE_DIR "/mingw/include"
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57 #endif
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58 #undef STANDARD_INCLUDE_COMPONENT
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59 #define STANDARD_INCLUDE_COMPONENT "MINGW"
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60
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61 #undef CPP_SPEC
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62 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}"
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63
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64 /* For Windows applications, include more libraries, but always include
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65 kernel32. */
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66 #undef LIB_SPEC
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67 #define LIB_SPEC "%{pg:-lgmon} %{mwindows:-lgdi32 -lcomdlg32} \
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68 -luser32 -lkernel32 -ladvapi32 -lshell32"
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69
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70 /* Weak symbols do not get resolved if using a Windows dll import lib.
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71 Make the unwind registration references strong undefs. */
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72 #if DWARF2_UNWIND_INFO
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73 #define SHARED_LIBGCC_UNDEFS_SPEC \
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74 "%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}"
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75 #else
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76 #define SHARED_LIBGCC_UNDEFS_SPEC ""
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77 #endif
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78
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79 #undef SUBTARGET_EXTRA_SPECS
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80 #define SUBTARGET_EXTRA_SPECS \
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81 { "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC }
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82
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83 #define LINK_SPEC "%{mwindows:--subsystem windows} \
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84 %{mconsole:--subsystem console} \
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85 %{shared: %{mdll: %eshared and mdll are not compatible}} \
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86 %{shared: --shared} %{mdll:--dll} \
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87 %{static:-Bstatic} %{!static:-Bdynamic} \
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88 %{shared|mdll: -e _DllMainCRTStartup@12 --enable-auto-image-base} \
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89 %(shared_libgcc_undefs)"
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90
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91 /* Include in the mingw32 libraries with libgcc */
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92 #ifdef ENABLE_SHARED_LIBGCC
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93 #define SHARED_LIBGCC_SPEC "%{shared-libgcc:-lgcc_s} %{!shared-libgcc:-lgcc_eh}"
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94 #else
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95 #define SHARED_LIBGCC_SPEC /*empty*/
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96 #endif
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97 #undef REAL_LIBGCC_SPEC
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98 #define REAL_LIBGCC_SPEC \
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99 "%{mthreads:-lmingwthrd} -lmingw32 \
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100 "SHARED_LIBGCC_SPEC" \
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101 -lgcc \
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102 -lmoldname -lmingwex -lmsvcrt"
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103
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104 #undef STARTFILE_SPEC
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105 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
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106 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \
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107 crtbegin.o%s"
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108
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109 #undef ENDFILE_SPEC
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110 #define ENDFILE_SPEC \
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111 "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
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112 crtend.o%s"
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113
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114 /* Override startfile prefix defaults. */
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115 #ifndef STANDARD_STARTFILE_PREFIX_1
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116 #if TARGET_64BIT_DEFAULT
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117 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib64/"
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118 #else
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119 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/"
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120 #endif
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121 #endif
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122 #ifndef STANDARD_STARTFILE_PREFIX_2
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123 #define STANDARD_STARTFILE_PREFIX_2 ""
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124 #endif
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125
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126 /* Output STRING, a string representing a filename, to FILE.
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127 We canonicalize it to be in Unix format (backslashes are replaced
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128 forward slashes. */
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129 #undef OUTPUT_QUOTED_STRING
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130 #define OUTPUT_QUOTED_STRING(FILE, STRING) \
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131 do { \
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132 char c; \
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133 \
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134 putc ('\"', asm_file); \
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135 \
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136 while ((c = *string++) != 0) \
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137 { \
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138 if (c == '\\') \
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139 c = '/'; \
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140 \
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141 if (ISPRINT (c)) \
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142 { \
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143 if (c == '\"') \
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144 putc ('\\', asm_file); \
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145 putc (c, asm_file); \
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146 } \
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147 else \
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148 fprintf (asm_file, "\\%03o", (unsigned char) c); \
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149 } \
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150 \
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151 putc ('\"', asm_file); \
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152 } while (0)
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153
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154 /* Define as short unsigned for compatibility with MS runtime. */
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155 #undef WINT_TYPE
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156 #define WINT_TYPE "short unsigned int"
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157
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158 /* mingw32 uses the -mthreads option to enable thread support. */
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159 #undef GOMP_SELF_SPECS
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160 #define GOMP_SELF_SPECS "%{fopenmp: -mthreads}"
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161
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162 /* mingw32 atexit function is safe to use in shared libraries. Use it
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163 to register C++ static destructors. */
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164 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true
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165
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166 /* Contains a pointer to type target_ovr_attr defining the target specific
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167 overrides of format attributes. See c-format.h for structure
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168 definition. */
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169 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES
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170 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides
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171
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172 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */
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173 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT
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174 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3
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175
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176 /* Custom initialization for warning -Wpedantic-ms-format for c-format. */
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177 #undef TARGET_OVERRIDES_FORMAT_INIT
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178 #define TARGET_OVERRIDES_FORMAT_INIT msformat_init
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179
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180 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */
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181 #undef TARGET_FORMAT_TYPES
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182 #define TARGET_FORMAT_TYPES mingw_format_attributes
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183
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184 #undef TARGET_N_FORMAT_TYPES
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185 #define TARGET_N_FORMAT_TYPES 3
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186
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187 /* Let defaults.h definition of TARGET_USE_JCR_SECTION apply. */
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188 #undef TARGET_USE_JCR_SECTION
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189
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190 #undef MINGW_ENABLE_EXECUTE_STACK
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191 #define MINGW_ENABLE_EXECUTE_STACK \
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192 extern void __enable_execute_stack (void *); \
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193 void \
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194 __enable_execute_stack (void *addr) \
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195 { \
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196 MEMORY_BASIC_INFORMATION b; \
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197 if (!VirtualQuery (addr, &b, sizeof(b))) \
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198 abort (); \
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199 VirtualProtect (b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE, \
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200 &b.Protect); \
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201 }
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202
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203 #undef ENABLE_EXECUTE_STACK
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204 #define ENABLE_EXECUTE_STACK MINGW_ENABLE_EXECUTE_STACK
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205
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206 #ifdef IN_LIBGCC2
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207 #include <windows.h>
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208 #endif
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209
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210 #if !TARGET_64BIT
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211 #define MD_UNWIND_SUPPORT "config/i386/w32-unwind.h"
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212 #endif
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213
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214 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */
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215 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
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216 #if DWARF2_UNWIND_INFO
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217 #define LIBGCC_EH_EXTN "_dw2"
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218 #else
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219 #define LIBGCC_EH_EXTN "_sjlj"
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220 #endif
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221 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll"
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