gcc/config/i386/cygwin.h

   1 /* Operating system specific defines to be used when targeting GCC for
   2    hosting on Windows32, using a Unix style C library and tools.
   3    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   4    2007 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 #define TARGET_VERSION fprintf (stderr, " (x86 Cygwin)");
  23
  24 #define EXTRA_OS_CPP_BUILTINS()  /* Nothing.  */
  25
  26 #undef CPP_SPEC
  27 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \
  28   %{mno-win32:%{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} \
  29   %{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{!ansi:%{mthreads:-D_MT}}}\
  30   %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix }\
  31   %{mwin32|mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}}\
  32   %{!nostdinc:%{!mno-win32|mno-cygwin:-idirafter ../include/w32api%s -idirafter ../../include/w32api%s}}\
  33 "
  34
  35 #undef STARTFILE_SPEC
  36 #define STARTFILE_SPEC "\
  37   %{shared|mdll: %{mno-cygwin:dllcrt2%O%s}}\
  38   %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:crt2%O%s}\
  39   %{pg:gcrt0%O%s}}}\
  40   crtbegin.o%s"
  41
  42 #undef ENDFILE_SPEC
  43 #define ENDFILE_SPEC \
  44   "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s}\
  45    crtend.o%s"
  46
  47 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we
  48    want to allow things to be added to it when installing new versions of
  49    GCC without making a new CYGWIN.DLL, so we leave it.  Profiling is handled
  50    by calling the init function from main.  */
  51
  52 #undef LIBGCC_SPEC
  53 #define LIBGCC_SPEC \
  54   "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc       \
  55    %{mno-cygwin:-lmoldname -lmingwex -lmsvcrt}"
  56
  57 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
  58    the Unix stuff is in cygwin.dll.  The import library is called
  59    'libcygwin.a'.  For Windows applications, include more libraries, but
  60    always include kernel32.  We'd like to specific subsystem windows to
  61    ld, but that doesn't work just yet.  */
  62
  63 #undef LIB_SPEC
  64 #define LIB_SPEC "\
  65   %{pg:-lgmon} \
  66   %{!mno-cygwin:-lcygwin} \
  67   %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
  68   %{mwindows:-lgdi32 -lcomdlg32} \
  69   -luser32 -lkernel32 -ladvapi32 -lshell32"
  70
  71 #define LINK_SPEC "\
  72   %{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 \
  78     %{mno-cygwin:_DllMainCRTStartup@12} \
  79     %{!mno-cygwin:__cygwin_dll_entry@12}}\
  80   %{!mno-cygwin:--dll-search-prefix=cyg}"
  81
  82 /* Allocate space for all of the machine-spec-specific stuff.
  83    Allocate enough space for cygwin -> mingw32  munging plus
  84    possible addition of "/mingw".  */
  85
  86 #ifndef CYGWIN_MINGW_SUBDIR
  87 #define CYGWIN_MINGW_SUBDIR "/mingw"
  88 #endif
  89 #define CYGWIN_MINGW_SUBDIR_LEN (sizeof (CYGWIN_MINGW_SUBDIR) - 1)
  90
  91 #ifdef GPLUSPLUS_INCLUDE_DIR
  92 char cygwin_gplusplus_include_dir[sizeof (GPLUSPLUS_INCLUDE_DIR) + 1
  93                                   + (CYGWIN_MINGW_SUBDIR_LEN)]
  94   = GPLUSPLUS_INCLUDE_DIR;
  95 #undef GPLUSPLUS_INCLUDE_DIR
  96 #define GPLUSPLUS_INCLUDE_DIR ((const char *) cygwin_gplusplus_include_dir)
  97 #ifndef GEN_CVT_ARRAY
  98 #define GEN_CVT_ARRAY
  99 #endif
 100 #endif
 101
 102 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 103 char cygwin_gplusplus_tool_include_dir[sizeof (GPLUSPLUS_TOOL_INCLUDE_DIR) + 1
 104                                        + CYGWIN_MINGW_SUBDIR_LEN]
 105   = GPLUSPLUS_TOOL_INCLUDE_DIR;
 106 #undef GPLUSPLUS_TOOL_INCLUDE_DIR
 107 #define GPLUSPLUS_TOOL_INCLUDE_DIR ((const char *) cygwin_gplusplus_tool_include_dir)
 108 #ifndef GEN_CVT_ARRAY
 109 #define GEN_CVT_ARRAY
 110 #endif
 111 #endif
 112
 113 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 114 char cygwin_gplusplus_backward_include_dir[sizeof (GPLUSPLUS_BACKWARD_INCLUDE_DIR)  + 1
 115                                            + CYGWIN_MINGW_SUBDIR_LEN]
 116   = GPLUSPLUS_BACKWARD_INCLUDE_DIR;
 117 #undef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 118 #define GPLUSPLUS_BACKWARD_INCLUDE_DIR ((const char *) cygwin_gplusplus_backward_include_dir)
 119 #ifndef GEN_CVT_ARRAY
 120 #define GEN_CVT_ARRAY
 121 #endif
 122 #endif
 123
 124 #ifdef LOCAL_INCLUDE_DIR
 125 char cygwin_local_include_dir[sizeof (LOCAL_INCLUDE_DIR)  + 1
 126                               + CYGWIN_MINGW_SUBDIR_LEN]
 127   = LOCAL_INCLUDE_DIR;
 128 #undef LOCAL_INCLUDE_DIR
 129 #define LOCAL_INCLUDE_DIR ((const char *) cygwin_local_include_dir)
 130 #ifndef GEN_CVT_ARRAY
 131 #define GEN_CVT_ARRAY
 132 #endif
 133 #endif
 134
 135 #ifdef CROSS_INCLUDE_DIR
 136 char cygwin_cross_include_dir[sizeof (CROSS_INCLUDE_DIR) + 1
 137                               + CYGWIN_MINGW_SUBDIR_LEN]
 138   = CROSS_INCLUDE_DIR;
 139 #undef CROSS_INCLUDE_DIR
 140 #define CROSS_INCLUDE_DIR ((const char *) cygwin_cross_include_dir)
 141 #ifndef GEN_CVT_ARRAY
 142 #define GEN_CVT_ARRAY
 143 #endif
 144 #endif
 145
 146 #ifdef TOOL_INCLUDE_DIR
 147 char cygwin_tool_include_dir[sizeof (TOOL_INCLUDE_DIR) + 1
 148                              + CYGWIN_MINGW_SUBDIR_LEN]
 149   = TOOL_INCLUDE_DIR;
 150 #undef TOOL_INCLUDE_DIR
 151 #define TOOL_INCLUDE_DIR ((const char *) cygwin_tool_include_dir)
 152
 153 #ifndef CROSS_DIRECTORY_STRUCTURE
 154 #undef STANDARD_INCLUDE_DIR
 155 #define STANDARD_INCLUDE_DIR "/usr/include"
 156 char cygwin_standard_include_dir[sizeof (STANDARD_INCLUDE_DIR) + 1
 157                                  + CYGWIN_MINGW_SUBDIR_LEN]
 158   = STANDARD_INCLUDE_DIR;
 159 #undef STANDARD_INCLUDE_DIR
 160 #define STANDARD_INCLUDE_DIR ((const char *) cygwin_standard_include_dir)
 161 #endif
 162
 163 #ifndef GEN_CVT_ARRAY
 164 #define GEN_CVT_ARRAY
 165 #endif
 166 #endif
 167
 168 #ifndef GEN_CVT_ARRAY
 169 extern char *cvt_to_mingw[];
 170 #else
 171 char *cvt_to_mingw[] =
 172   {
 173 #ifdef GPLUSPLUS_INCLUDE_DIR
 174     cygwin_gplusplus_include_dir,
 175 #endif
 176
 177 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 178     cygwin_gplusplus_tool_include_dir,
 179 #endif
 180
 181 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 182     cygwin_gplusplus_backward_include_dir,
 183 #endif
 184
 185 #ifdef LOCAL_INCLUDE_DIR
 186     cygwin_local_include_dir,
 187 #endif
 188
 189 #ifdef CROSS_INCLUDE_DIR
 190     cygwin_cross_include_dir,
 191 #endif
 192
 193 #ifdef TOOL_INCLUDE_DIR
 194     cygwin_tool_include_dir,
 195 #endif
 196
 197 #ifdef STANDARD_INCLUDE_DIR
 198     cygwin_standard_include_dir,
 199 #endif
 200
 201     NULL
 202   };
 203 #undef GEN_CVT_ARRAY
 204 #endif /*GEN_CVT_ARRAY*/
 205
 206 void mingw_scan (int, const char * const *, const char **);
 207 #if 1
 208 #define GCC_DRIVER_HOST_INITIALIZATION \
 209 do \
 210 { \
 211   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 212   } \
 213 while (0)
 214 #else
 215 #define GCC_DRIVER_HOST_INITIALIZATION \
 216 do \
 217 { \
 218   char *cprefix = concat (tooldir_base_prefix, spec_machine, \
 219                           dir_separator_str, NULL); \
 220   if (!IS_ABSOLUTE_PATH (cprefix)) \
 221     cprefix = concat (standard_exec_prefix, spec_machine, dir_separator_str, \
 222                       spec_version, dir_separator_str, tooldir_prefix, NULL); \
 223   add_prefix (&exec_prefixes,\
 224               concat (cprefix, "../../../../", spec_machine, "/bin/", NULL), \
 225               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 226   add_prefix (&exec_prefixes, cprefix, \
 227               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 228   add_prefix (&startfile_prefixes,\
 229               concat (standard_startfile_prefix, "w32api", NULL),\
 230               "GCC", PREFIX_PRIORITY_LAST, 0, NULL);\
 231   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 232   } \
 233 while (0)
 234 #endif
 235
 236 /* Binutils does not handle weak symbols from dlls correctly.  For now,
 237    do not use them unnecessarily in gthr-posix.h.  */
 238 #define GTHREAD_USE_WEAK 0
 239
 240 /* Every program on cygwin links against cygwin1.dll which contains
 241    the pthread routines.  There is no need to explicitly link them
 242    and the -pthread flag is not recognized.  */
 243 #undef GOMP_SELF_SPECS
 244 #define GOMP_SELF_SPECS ""