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, 2008, 2009 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 #ifdef ENABLE_SHARED_LIBGCC
  53 #define SHARED_LIBGCC_SPEC " \
  54  %{static|static-libgcc:-lgcc -lgcc_eh} \
  55  %{!static: \
  56    %{!static-libgcc: \
  57      %{!shared: \
  58        %{!shared-libgcc:-lgcc -lgcc_eh} \
  59        %{shared-libgcc:-lgcc_s -lgcc} \
  60       } \
  61      %{shared:-lgcc_s -lgcc} \
  62     } \
  63   } "
  64 #else
  65 #define SHARED_LIBGCC_SPEC " -lgcc "
  66 #endif
  67
  68 #undef REAL_LIBGCC_SPEC
  69 #define REAL_LIBGCC_SPEC \
  70   "%{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} \
  71    " SHARED_LIBGCC_SPEC " \
  72    %{mno-cygwin:-lmoldname -lmingwex -lmsvcrt}"
  73
  74 /* We have to dynamic link to get to the system DLLs.  All of libc, libm and
  75    the Unix stuff is in cygwin.dll.  The import library is called
  76    'libcygwin.a'.  For Windows applications, include more libraries, but
  77    always include kernel32.  We'd like to specific subsystem windows to
  78    ld, but that doesn't work just yet.  */
  79
  80 #undef LIB_SPEC
  81 #define LIB_SPEC "\
  82   %{pg:-lgmon} \
  83   %{!mno-cygwin:-lcygwin} \
  84   %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} \
  85   %{mwindows:-lgdi32 -lcomdlg32} \
  86   -luser32 -lkernel32 -ladvapi32 -lshell32"
  87
  88 #define LINK_SPEC "\
  89   %{mwindows:--subsystem windows} \
  90   %{mconsole:--subsystem console} \
  91   %{shared: %{mdll: %eshared and mdll are not compatible}} \
  92   %{shared: --shared} %{mdll:--dll} \
  93   %{static:-Bstatic} %{!static:-Bdynamic} \
  94   %{shared|mdll: -e \
  95     %{mno-cygwin:_DllMainCRTStartup@12} \
  96     %{!mno-cygwin:__cygwin_dll_entry@12}}\
  97   %{!mno-cygwin:--dll-search-prefix=cyg}"
  98
  99 /* Allocate space for all of the machine-spec-specific stuff.
 100    Allocate enough space for cygwin -> mingw32  munging plus
 101    possible addition of "/mingw".  */
 102
 103 #ifndef CYGWIN_MINGW_SUBDIR
 104 #define CYGWIN_MINGW_SUBDIR "/mingw"
 105 #endif
 106 #define CYGWIN_MINGW_SUBDIR_LEN (sizeof (CYGWIN_MINGW_SUBDIR) - 1)
 107
 108 #ifdef GPLUSPLUS_INCLUDE_DIR
 109 char cygwin_gplusplus_include_dir[sizeof (GPLUSPLUS_INCLUDE_DIR) + 1
 110                                   + (CYGWIN_MINGW_SUBDIR_LEN)]
 111   = GPLUSPLUS_INCLUDE_DIR;
 112 #undef GPLUSPLUS_INCLUDE_DIR
 113 #define GPLUSPLUS_INCLUDE_DIR ((const char *) cygwin_gplusplus_include_dir)
 114 #ifndef GEN_CVT_ARRAY
 115 #define GEN_CVT_ARRAY
 116 #endif
 117 #endif
 118
 119 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 120 char cygwin_gplusplus_tool_include_dir[sizeof (GPLUSPLUS_TOOL_INCLUDE_DIR) + 1
 121                                        + CYGWIN_MINGW_SUBDIR_LEN]
 122   = GPLUSPLUS_TOOL_INCLUDE_DIR;
 123 #undef GPLUSPLUS_TOOL_INCLUDE_DIR
 124 #define GPLUSPLUS_TOOL_INCLUDE_DIR ((const char *) cygwin_gplusplus_tool_include_dir)
 125 #ifndef GEN_CVT_ARRAY
 126 #define GEN_CVT_ARRAY
 127 #endif
 128 #endif
 129
 130 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 131 char cygwin_gplusplus_backward_include_dir[sizeof (GPLUSPLUS_BACKWARD_INCLUDE_DIR)  + 1
 132                                            + CYGWIN_MINGW_SUBDIR_LEN]
 133   = GPLUSPLUS_BACKWARD_INCLUDE_DIR;
 134 #undef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 135 #define GPLUSPLUS_BACKWARD_INCLUDE_DIR ((const char *) cygwin_gplusplus_backward_include_dir)
 136 #ifndef GEN_CVT_ARRAY
 137 #define GEN_CVT_ARRAY
 138 #endif
 139 #endif
 140
 141 #ifdef LOCAL_INCLUDE_DIR
 142 char cygwin_local_include_dir[sizeof (LOCAL_INCLUDE_DIR)  + 1
 143                               + CYGWIN_MINGW_SUBDIR_LEN]
 144   = LOCAL_INCLUDE_DIR;
 145 #undef LOCAL_INCLUDE_DIR
 146 #define LOCAL_INCLUDE_DIR ((const char *) cygwin_local_include_dir)
 147 #ifndef GEN_CVT_ARRAY
 148 #define GEN_CVT_ARRAY
 149 #endif
 150 #endif
 151
 152 #ifdef CROSS_INCLUDE_DIR
 153 char cygwin_cross_include_dir[sizeof (CROSS_INCLUDE_DIR) + 1
 154                               + CYGWIN_MINGW_SUBDIR_LEN]
 155   = CROSS_INCLUDE_DIR;
 156 #undef CROSS_INCLUDE_DIR
 157 #define CROSS_INCLUDE_DIR ((const char *) cygwin_cross_include_dir)
 158 #ifndef GEN_CVT_ARRAY
 159 #define GEN_CVT_ARRAY
 160 #endif
 161 #endif
 162
 163 #ifdef TOOL_INCLUDE_DIR
 164 char cygwin_tool_include_dir[sizeof (TOOL_INCLUDE_DIR) + 1
 165                              + CYGWIN_MINGW_SUBDIR_LEN]
 166   = TOOL_INCLUDE_DIR;
 167 #undef TOOL_INCLUDE_DIR
 168 #define TOOL_INCLUDE_DIR ((const char *) cygwin_tool_include_dir)
 169
 170 #ifndef CROSS_DIRECTORY_STRUCTURE
 171 #undef STANDARD_INCLUDE_DIR
 172 #define STANDARD_INCLUDE_DIR "/usr/include"
 173 char cygwin_standard_include_dir[sizeof (STANDARD_INCLUDE_DIR) + 1
 174                                  + CYGWIN_MINGW_SUBDIR_LEN]
 175   = STANDARD_INCLUDE_DIR;
 176 #undef STANDARD_INCLUDE_DIR
 177 #define STANDARD_INCLUDE_DIR ((const char *) cygwin_standard_include_dir)
 178 #endif
 179
 180 #ifndef GEN_CVT_ARRAY
 181 #define GEN_CVT_ARRAY
 182 #endif
 183 #endif
 184
 185 #ifndef GEN_CVT_ARRAY
 186 extern char *cvt_to_mingw[];
 187 #else
 188 char *cvt_to_mingw[] =
 189   {
 190 #ifdef GPLUSPLUS_INCLUDE_DIR
 191     cygwin_gplusplus_include_dir,
 192 #endif
 193
 194 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 195     cygwin_gplusplus_tool_include_dir,
 196 #endif
 197
 198 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 199     cygwin_gplusplus_backward_include_dir,
 200 #endif
 201
 202 #ifdef LOCAL_INCLUDE_DIR
 203     cygwin_local_include_dir,
 204 #endif
 205
 206 #ifdef CROSS_INCLUDE_DIR
 207     cygwin_cross_include_dir,
 208 #endif
 209
 210 #ifdef TOOL_INCLUDE_DIR
 211     cygwin_tool_include_dir,
 212 #endif
 213
 214 #ifdef STANDARD_INCLUDE_DIR
 215     cygwin_standard_include_dir,
 216 #endif
 217
 218     NULL
 219   };
 220 #undef GEN_CVT_ARRAY
 221 #endif /*GEN_CVT_ARRAY*/
 222
 223 void mingw_scan (int, const char * const *, const char **);
 224 #if 1
 225 #define GCC_DRIVER_HOST_INITIALIZATION \
 226 do \
 227 { \
 228   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 229   } \
 230 while (0)
 231 #else
 232 #define GCC_DRIVER_HOST_INITIALIZATION \
 233 do \
 234 { \
 235   char *cprefix = concat (tooldir_base_prefix, spec_machine, \
 236                           dir_separator_str, NULL); \
 237   if (!IS_ABSOLUTE_PATH (cprefix)) \
 238     cprefix = concat (standard_exec_prefix, spec_machine, dir_separator_str, \
 239                       spec_version, dir_separator_str, tooldir_prefix, NULL); \
 240   add_prefix (&exec_prefixes,\
 241               concat (cprefix, "../../../../", spec_machine, "/bin/", NULL), \
 242               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 243   add_prefix (&exec_prefixes, cprefix, \
 244               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 245   add_prefix (&startfile_prefixes,\
 246               concat (standard_startfile_prefix, "w32api", NULL),\
 247               "GCC", PREFIX_PRIORITY_LAST, 0, NULL);\
 248   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 249   } \
 250 while (0)
 251 #endif
 252
 253 /* Binutils does not handle weak symbols from dlls correctly.  For now,
 254    do not use them unnecessarily in gthr-posix.h.  */
 255 #define GTHREAD_USE_WEAK 0
 256
 257 /* Every program on cygwin links against cygwin1.dll which contains
 258    the pthread routines.  There is no need to explicitly link them
 259    and the -pthread flag is not recognized.  */
 260 #undef GOMP_SELF_SPECS
 261 #define GOMP_SELF_SPECS ""
 262
 263 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
 264 #if DWARF2_UNWIND_INFO
 265 #define LIBGCC_EH_EXTN ""
 266 #else
 267 #define LIBGCC_EH_EXTN "-sjlj"
 268 #endif
 269 #define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll"