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) 1995-2014 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #define EXTRA_OS_CPP_BUILTINS() \ 22 do \ 23 { \ 24 builtin_define ("__CYGWIN__"); \ 25 if (!TARGET_64BIT) \ 26 builtin_define ("__CYGWIN32__"); \ 27 builtin_define ("__unix__"); \ 28 builtin_define ("__unix"); \ 29 } \ 30 while (0) 31 32 #undef CPP_SPEC 33 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \ 34 %{!ansi:-Dunix} \ 35 %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}} \ 36 %{!nostdinc:%{!mno-win32:-idirafter ../include/w32api%s -idirafter ../../include/w32api%s}}\ 37 " 38 39 #undef STARTFILE_SPEC 40 #define STARTFILE_SPEC "\ 41 %{!shared: %{!mdll: crt0%O%s \ 42 %{pg:gcrt0%O%s}}}\ 43 crtbegin.o%s" 44 45 #undef ENDFILE_SPEC 46 #define ENDFILE_SPEC \ 47 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}\ 48 %{!shared:%:if-exists(default-manifest.o%s)}\ 49 crtend.o%s" 50 51 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we 52 want to allow things to be added to it when installing new versions of 53 GCC without making a new CYGWIN.DLL, so we leave it. Profiling is handled 54 by calling the init function from main. */ 55 56 #ifdef ENABLE_SHARED_LIBGCC 57 #define SHARED_LIBGCC_SPEC " \ 58 %{static|static-libgcc:-lgcc -lgcc_eh} \ 59 %{!static: \ 60 %{!static-libgcc: \ 61 -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 SHARED_LIBGCC_SPEC 70 71 /* We have to dynamic link to get to the system DLLs. All of libc, libm and 72 the Unix stuff is in cygwin.dll. The import library is called 73 'libcygwin.a'. For Windows applications, include more libraries, but 74 always include kernel32. We'd like to specific subsystem windows to 75 ld, but that doesn't work just yet. */ 76 77 #undef LIB_SPEC 78 #define LIB_SPEC "\ 79 %{pg:-lgmon} \ 80 -lcygwin \ 81 %{mwindows:-lgdi32 -lcomdlg32} \ 82 -ladvapi32 -lshell32 -luser32 -lkernel32" 83 84 /* To implement C++ function replacement we always wrap the cxx 85 malloc-like operators. See N2800 #17.6.4.6 [replacement.functions] */ 86 #define CXX_WRAP_SPEC_LIST " \ 87 --wrap _Znwj \ 88 --wrap _Znaj \ 89 --wrap _ZdlPv \ 90 --wrap _ZdaPv \ 91 --wrap _ZnwjRKSt9nothrow_t \ 92 --wrap _ZnajRKSt9nothrow_t \ 93 --wrap _ZdlPvRKSt9nothrow_t \ 94 --wrap _ZdaPvRKSt9nothrow_t \ 95 " 96 97 #if defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) 98 99 #if USE_CYGWIN_LIBSTDCXX_WRAPPERS 100 /* Default on, only explict -mno disables. */ 101 #define CXX_WRAP_SPEC_OPT "!mno-use-libstdc-wrappers" 102 #else 103 /* Default off, only explict -m enables. */ 104 #define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers" 105 #endif 106 107 #define CXX_WRAP_SPEC "%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}" 108 109 #else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 110 111 #define CXX_WRAP_SPEC "" 112 113 #endif /* ?defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 114 115 #define LINK_SPEC "\ 116 %{mwindows:--subsystem windows} \ 117 %{mconsole:--subsystem console} \ 118 " CXX_WRAP_SPEC " \ 119 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 120 %{shared: --shared} %{mdll:--dll} \ 121 %{static:-Bstatic} %{!static:-Bdynamic} \ 122 %{shared|mdll: --enable-auto-image-base -e __cygwin_dll_entry@12} \ 123 --dll-search-prefix=cyg -tsaware" 124 125 /* Binutils does not handle weak symbols from dlls correctly. For now, 126 do not use them unnecessarily in gthr-posix.h. */ 127 #define GTHREAD_USE_WEAK 0 128 129 /* Every program on cygwin links against cygwin1.dll which contains 130 the pthread routines. There is no need to explicitly link them 131 and the -pthread flag is not recognized. */ 132 #undef GOMP_SELF_SPECS 133 #define GOMP_SELF_SPECS "" 134 #undef GTM_SELF_SPECS 135 #define GTM_SELF_SPECS "" 136 137 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 138 #if DWARF2_UNWIND_INFO 139 #define LIBGCC_EH_EXTN "" 140 #else 141 #define LIBGCC_EH_EXTN "-sjlj" 142 #endif 143 #define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll" 144 145 /* We should find a way to not have to update this manually. */ 146 #define LIBGCJ_SONAME "cyggcj" /*LIBGCC_EH_EXTN*/ "-15.dll" 147 148