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, 2010 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 /* To implement C++ function replacement we always wrap the cxx
  89    malloc-like operators.  See N2800 #17.6.4.6 [replacement.functions] */
  90 #define CXX_WRAP_SPEC_LIST " \
  91   --wrap _Znwj \
  92   --wrap _Znaj \
  93   --wrap _ZdlPv \
  94   --wrap _ZdaPv \
  95   --wrap _ZnwjRKSt9nothrow_t \
  96   --wrap _ZnajRKSt9nothrow_t \
  97   --wrap _ZdlPvRKSt9nothrow_t \
  98   --wrap _ZdaPvRKSt9nothrow_t \
  99 "
 100
 101 #if defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)
 102
 103 #if USE_CYGWIN_LIBSTDCXX_WRAPPERS
 104 /* Default on, only explict -mno disables.  */
 105 #define CXX_WRAP_SPEC_OPT "!mno-use-libstdc-wrappers"
 106 #else
 107 /* Default off, only explict -m enables.  */
 108 #define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers"
 109 #endif
 110
 111 #define CXX_WRAP_SPEC "%{!mno-cygwin:%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}}"
 112
 113 #else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)  */
 114
 115 #define CXX_WRAP_SPEC ""
 116
 117 #endif /* ?defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */
 118
 119 #define LINK_SPEC "\
 120   %{mwindows:--subsystem windows} \
 121   %{mconsole:--subsystem console} \
 122   " CXX_WRAP_SPEC " \
 123   %{shared: %{mdll: %eshared and mdll are not compatible}} \
 124   %{shared: --shared} %{mdll:--dll} \
 125   %{static:-Bstatic} %{!static:-Bdynamic} \
 126   %{shared|mdll: --enable-auto-image-base -e \
 127     %{mno-cygwin:_DllMainCRTStartup@12} \
 128     %{!mno-cygwin:__cygwin_dll_entry@12}}\
 129   %{!mno-cygwin:--dll-search-prefix=cyg -tsaware}"
 130
 131 /* Allocate space for all of the machine-spec-specific stuff.
 132    Allocate enough space for cygwin -> mingw32  munging plus
 133    possible addition of "/mingw".  */
 134
 135 #ifndef CYGWIN_MINGW_SUBDIR
 136 #define CYGWIN_MINGW_SUBDIR "/mingw"
 137 #endif
 138 #define CYGWIN_MINGW_SUBDIR_LEN (sizeof (CYGWIN_MINGW_SUBDIR) - 1)
 139
 140 #ifdef GPLUSPLUS_INCLUDE_DIR
 141 char cygwin_gplusplus_include_dir[sizeof (GPLUSPLUS_INCLUDE_DIR) + 1
 142                                   + (CYGWIN_MINGW_SUBDIR_LEN)]
 143   = GPLUSPLUS_INCLUDE_DIR;
 144 #undef GPLUSPLUS_INCLUDE_DIR
 145 #define GPLUSPLUS_INCLUDE_DIR ((const char *) cygwin_gplusplus_include_dir)
 146 #ifndef GEN_CVT_ARRAY
 147 #define GEN_CVT_ARRAY
 148 #endif
 149 #endif
 150
 151 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 152 char cygwin_gplusplus_tool_include_dir[sizeof (GPLUSPLUS_TOOL_INCLUDE_DIR) + 1
 153                                        + CYGWIN_MINGW_SUBDIR_LEN]
 154   = GPLUSPLUS_TOOL_INCLUDE_DIR;
 155 #undef GPLUSPLUS_TOOL_INCLUDE_DIR
 156 #define GPLUSPLUS_TOOL_INCLUDE_DIR ((const char *) cygwin_gplusplus_tool_include_dir)
 157 #ifndef GEN_CVT_ARRAY
 158 #define GEN_CVT_ARRAY
 159 #endif
 160 #endif
 161
 162 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 163 char cygwin_gplusplus_backward_include_dir[sizeof (GPLUSPLUS_BACKWARD_INCLUDE_DIR)  + 1
 164                                            + CYGWIN_MINGW_SUBDIR_LEN]
 165   = GPLUSPLUS_BACKWARD_INCLUDE_DIR;
 166 #undef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 167 #define GPLUSPLUS_BACKWARD_INCLUDE_DIR ((const char *) cygwin_gplusplus_backward_include_dir)
 168 #ifndef GEN_CVT_ARRAY
 169 #define GEN_CVT_ARRAY
 170 #endif
 171 #endif
 172
 173 #ifdef LOCAL_INCLUDE_DIR
 174 char cygwin_local_include_dir[sizeof (LOCAL_INCLUDE_DIR)  + 1
 175                               + CYGWIN_MINGW_SUBDIR_LEN]
 176   = LOCAL_INCLUDE_DIR;
 177 #undef LOCAL_INCLUDE_DIR
 178 #define LOCAL_INCLUDE_DIR ((const char *) cygwin_local_include_dir)
 179 #ifndef GEN_CVT_ARRAY
 180 #define GEN_CVT_ARRAY
 181 #endif
 182 #endif
 183
 184 #ifdef CROSS_INCLUDE_DIR
 185 char cygwin_cross_include_dir[sizeof (CROSS_INCLUDE_DIR) + 1
 186                               + CYGWIN_MINGW_SUBDIR_LEN]
 187   = CROSS_INCLUDE_DIR;
 188 #undef CROSS_INCLUDE_DIR
 189 #define CROSS_INCLUDE_DIR ((const char *) cygwin_cross_include_dir)
 190 #ifndef GEN_CVT_ARRAY
 191 #define GEN_CVT_ARRAY
 192 #endif
 193 #endif
 194
 195 #ifdef TOOL_INCLUDE_DIR
 196 char cygwin_tool_include_dir[sizeof (TOOL_INCLUDE_DIR) + 1
 197                              + CYGWIN_MINGW_SUBDIR_LEN]
 198   = TOOL_INCLUDE_DIR;
 199 #undef TOOL_INCLUDE_DIR
 200 #define TOOL_INCLUDE_DIR ((const char *) cygwin_tool_include_dir)
 201
 202 #ifndef CROSS_DIRECTORY_STRUCTURE
 203 #undef STANDARD_INCLUDE_DIR
 204 #define STANDARD_INCLUDE_DIR "/usr/include"
 205 char cygwin_standard_include_dir[sizeof (STANDARD_INCLUDE_DIR) + 1
 206                                  + CYGWIN_MINGW_SUBDIR_LEN]
 207   = STANDARD_INCLUDE_DIR;
 208 #undef STANDARD_INCLUDE_DIR
 209 #define STANDARD_INCLUDE_DIR ((const char *) cygwin_standard_include_dir)
 210 #endif
 211
 212 #ifndef GEN_CVT_ARRAY
 213 #define GEN_CVT_ARRAY
 214 #endif
 215 #endif
 216
 217 #ifndef GEN_CVT_ARRAY
 218 extern char *cvt_to_mingw[];
 219 #else
 220 char *cvt_to_mingw[] =
 221   {
 222 #ifdef GPLUSPLUS_INCLUDE_DIR
 223     cygwin_gplusplus_include_dir,
 224 #endif
 225
 226 #ifdef GPLUSPLUS_TOOL_INCLUDE_DIR
 227     cygwin_gplusplus_tool_include_dir,
 228 #endif
 229
 230 #ifdef GPLUSPLUS_BACKWARD_INCLUDE_DIR
 231     cygwin_gplusplus_backward_include_dir,
 232 #endif
 233
 234 #ifdef LOCAL_INCLUDE_DIR
 235     cygwin_local_include_dir,
 236 #endif
 237
 238 #ifdef CROSS_INCLUDE_DIR
 239     cygwin_cross_include_dir,
 240 #endif
 241
 242 #ifdef TOOL_INCLUDE_DIR
 243     cygwin_tool_include_dir,
 244 #endif
 245
 246 #ifdef STANDARD_INCLUDE_DIR
 247     cygwin_standard_include_dir,
 248 #endif
 249
 250     NULL
 251   };
 252 #undef GEN_CVT_ARRAY
 253 #endif /*GEN_CVT_ARRAY*/
 254
 255 void mingw_scan (int, const char * const *, const char **);
 256 #if 1
 257 #define GCC_DRIVER_HOST_INITIALIZATION \
 258 do \
 259 { \
 260   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 261   } \
 262 while (0)
 263 #else
 264 #define GCC_DRIVER_HOST_INITIALIZATION \
 265 do \
 266 { \
 267   char *cprefix = concat (tooldir_base_prefix, spec_machine, \
 268                           dir_separator_str, NULL); \
 269   if (!IS_ABSOLUTE_PATH (cprefix)) \
 270     cprefix = concat (standard_exec_prefix, spec_machine, dir_separator_str, \
 271                       spec_version, dir_separator_str, tooldir_prefix, NULL); \
 272   add_prefix (&exec_prefixes,\
 273               concat (cprefix, "../../../../", spec_machine, "/bin/", NULL), \
 274               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 275   add_prefix (&exec_prefixes, cprefix, \
 276               "BINUTILS", PREFIX_PRIORITY_LAST, 0, NULL); \
 277   add_prefix (&startfile_prefixes,\
 278               concat (standard_startfile_prefix, "w32api", NULL),\
 279               "GCC", PREFIX_PRIORITY_LAST, 0, NULL);\
 280   mingw_scan(argc, (const char * const *) argv, &spec_machine); \
 281   } \
 282 while (0)
 283 #endif
 284
 285 /* Binutils does not handle weak symbols from dlls correctly.  For now,
 286    do not use them unnecessarily in gthr-posix.h.  */
 287 #define GTHREAD_USE_WEAK 0
 288
 289 /* Every program on cygwin links against cygwin1.dll which contains
 290    the pthread routines.  There is no need to explicitly link them
 291    and the -pthread flag is not recognized.  */
 292 #undef GOMP_SELF_SPECS
 293 #define GOMP_SELF_SPECS ""
 294
 295 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */
 296 #if DWARF2_UNWIND_INFO
 297 #define LIBGCC_EH_EXTN ""
 298 #else
 299 #define LIBGCC_EH_EXTN "-sjlj"
 300 #endif
 301 #define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll"
 302
 303 /* We should find a way to not have to update this manually.  */
 304 #define LIBGCJ_SONAME "cyggcj" /*LIBGCC_EH_EXTN*/ "-11.dll"
 305