gcc/config/i386/mingw32.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    hosting on Windows32, using GNU tools and the Windows32 API Library.
   3    Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007
   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
  22 #undef TARGET_VERSION
  23 #if TARGET_64BIT_DEFAULT
  24 #define TARGET_VERSION fprintf (stderr,"(x86_64 MinGW");
  25 #else
  26 #define TARGET_VERSION fprintf (stderr," (x86 MinGW)");
  27 #endif
  28
  29 /* See i386/crtdll.h for an alternative definition. _INTEGRAL_MAX_BITS
  30    is for compatibility with native compiler.  */
  31 #define EXTRA_OS_CPP_BUILTINS()                                 \
  32   do                                                            \
  33     {                                                           \
  34       builtin_define ("__MSVCRT__");                            \
  35       builtin_define ("__MINGW32__");                           \
  36       builtin_define ("_WIN32");                                \
  37       builtin_define_std ("WIN32");                             \
  38       builtin_define_std ("WINNT");                             \
  39       builtin_define_with_int_value ("_INTEGRAL_MAX_BITS",      \
  40                                      TYPE_PRECISION (intmax_type_node));\
  41       if (TARGET_64BIT_MS_ABI)                                  \
  42         {                                                       \
  43           builtin_define ("__MINGW64__");                       \
  44           builtin_define_std ("WIN64");                         \
  45           builtin_define_std ("_WIN64");                        \
  46         }                                                       \
  47     }                                                           \
  48   while (0)
  49
  50 /* Override the standard choice of /usr/include as the default prefix
  51    to try when searching for header files.  */
  52 #undef STANDARD_INCLUDE_DIR
  53 #if TARGET_64BIT_DEFAULT
  54 #define STANDARD_INCLUDE_DIR "/mingw/include64"
  55 #else
  56 #define STANDARD_INCLUDE_DIR "/mingw/include"
  57 #endif
  58 #undef STANDARD_INCLUDE_COMPONENT
  59 #define STANDARD_INCLUDE_COMPONENT "MINGW"
  60
  61 #undef CPP_SPEC
  62 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT}"
  63
  64 /* For Windows applications, include more libraries, but always include
  65    kernel32.  */
  66 #undef LIB_SPEC
  67 #define LIB_SPEC "%{pg:-lgmon} %{mwindows:-lgdi32 -lcomdlg32} \
  68                   -luser32 -lkernel32 -ladvapi32 -lshell32"
  69
  70 /* Include in the mingw32 libraries with libgcc */
  71 #undef LINK_SPEC
  72 #define LINK_SPEC "%{mwindows:--subsystem windows} \
  73   %{mconsole:--subsystem console} \
  74   %{shared: %{mdll: %eshared and mdll are not compatible}} \
  75   %{shared: --shared} %{mdll:--dll} \
  76   %{static:-Bstatic} %{!static:-Bdynamic} \
  77   %{shared|mdll: -e _DllMainCRTStartup@12}"
  78
  79 /* Include in the mingw32 libraries with libgcc */
  80 #undef LIBGCC_SPEC
  81 #define LIBGCC_SPEC \
  82   "%{mthreads:-lmingwthrd} -lmingw32 -lgcc -lmoldname -lmingwex -lmsvcrt"
  83
  84 #undef STARTFILE_SPEC
  85 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
  86   %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \
  87   crtbegin.o%s"
  88
  89 #undef ENDFILE_SPEC
  90 #define ENDFILE_SPEC \
  91   "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
  92   crtend.o%s"
  93
  94 /* Override startfile prefix defaults.  */
  95 #ifndef STANDARD_STARTFILE_PREFIX_1
  96 #if TARGET_64BIT_DEFAULT
  97 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib64/"
  98 #else
  99 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/"
 100 #endif
 101 #endif
 102 #ifndef STANDARD_STARTFILE_PREFIX_2
 103 #define STANDARD_STARTFILE_PREFIX_2 ""
 104 #endif
 105
 106 /* Output STRING, a string representing a filename, to FILE.
 107    We canonicalize it to be in Unix format (backslashes are replaced
 108    forward slashes.  */
 109 #undef OUTPUT_QUOTED_STRING
 110 #define OUTPUT_QUOTED_STRING(FILE, STRING)               \
 111 do {                                                     \
 112   char c;                                                \
 113                                                          \
 114   putc ('\"', asm_file);                                 \
 115                                                          \
 116   while ((c = *string++) != 0)                           \
 117     {                                                    \
 118       if (c == '\\')                                     \
 119         c = '/';                                         \
 120                                                          \
 121       if (ISPRINT (c))                                   \
 122         {                                                \
 123           if (c == '\"')                                 \
 124             putc ('\\', asm_file);                       \
 125           putc (c, asm_file);                            \
 126         }                                                \
 127       else                                               \
 128         fprintf (asm_file, "\\%03o", (unsigned char) c); \
 129     }                                                    \
 130                                                          \
 131   putc ('\"', asm_file);                                 \
 132 } while (0)
 133
 134 /* Define as short unsigned for compatibility with MS runtime.  */
 135 #undef WINT_TYPE
 136 #define WINT_TYPE "short unsigned int"
 137
 138 /* mingw32 uses the  -mthreads option to enable thread support.  */
 139 #undef GOMP_SELF_SPECS
 140 #define GOMP_SELF_SPECS "%{fopenmp: -mthreads}"
 141
 142 /* mingw32 atexit function is safe to use in shared libraries.  Use it
 143    to register C++ static destructors.  */
 144 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true
 145
 146 /* Contains a pointer to type target_ovr_attr defining the target specific
 147    overrides of format attributes.  See c-format.h for structure
 148    definition.  */
 149 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES
 150 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides
 151
 152 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE.  */
 153 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT
 154 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3
 155
 156 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime.  */
 157 #undef TARGET_FORMAT_TYPES
 158 #define TARGET_FORMAT_TYPES mingw_format_attributes
 159
 160 #undef TARGET_N_FORMAT_TYPES
 161 #define TARGET_N_FORMAT_TYPES 3
 162
 163 /* JCR_SECTION works on mingw32.  */
 164 #undef TARGET_USE_JCR_SECTION
 165 #define TARGET_USE_JCR_SECTION 1
 166
 167 #undef MINGW_ENABLE_EXECUTE_STACK
 168 #define MINGW_ENABLE_EXECUTE_STACK     \
 169 extern void __enable_execute_stack (void *);    \
 170 void         \
 171 __enable_execute_stack (void *addr)                                     \
 172 {                                                                       \
 173   MEMORY_BASIC_INFORMATION b;                                           \
 174   if (!VirtualQuery (addr, &b, sizeof(b)))                              \
 175     abort ();                                                           \
 176   VirtualProtect (b.BaseAddress, b.RegionSize, PAGE_EXECUTE_READWRITE,  \
 177                   &b.Protect);                                          \
 178 }
 179
 180 #undef ENABLE_EXECUTE_STACK
 181 #define ENABLE_EXECUTE_STACK MINGW_ENABLE_EXECUTE_STACK
 182
 183 #define SUBTARGET_INIT_BUILTINS                                 \
 184 do {                                                            \
 185   if (TARGET_64BIT_MS_ABI)                                      \
 186     {                                                           \
 187           /* These builtin functions have a different return    \
 188              type (intptr_t) on 64-bit MS Windows.  */          \
 189           disable_builtin_function ("execl");                   \
 190           disable_builtin_function ("execlp");                  \
 191           disable_builtin_function ("execle");                  \
 192           disable_builtin_function ("execv");                   \
 193           disable_builtin_function ("execvp");                  \
 194           disable_builtin_function ("execve");                  \
 195     }                                                           \
 196   /* Second argument of MS scalb is long, not double. */        \
 197   disable_builtin_function ("scalb");                           \
 198 } while (0)                                                     \
 199
 200 #ifdef IN_LIBGCC2
 201 #include <windows.h>
 202 #endif
 203
 204 #if !TARGET_64BIT
 205 #define MD_UNWIND_SUPPORT "config/i386/w32-unwind.h"
 206 #endif