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) 1995-2015 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along 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 %{pthread:-D_REENTRANT} \ 36 %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}} \ 37 %{!nostdinc:%{!mno-win32:-idirafter ../include/w32api%s -idirafter ../../include/w32api%s}}\ 38" 39 40#undef STARTFILE_SPEC 41#define STARTFILE_SPEC "\ 42 %{!shared: %{!mdll: crt0%O%s \ 43 %{pg:gcrt0%O%s}}}\ 44 %{shared:crtbeginS.o%s;:crtbegin.o%s} \ 45 %{fvtable-verify=none:%s; \ 46 fvtable-verify=preinit:vtv_start.o%s; \ 47 fvtable-verify=std:vtv_start.o%s}" 48 49#undef ENDFILE_SPEC 50#define ENDFILE_SPEC \ 51 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}\ 52 %{!shared:%:if-exists(default-manifest.o%s)}\ 53 %{fvtable-verify=none:%s; \ 54 fvtable-verify=preinit:vtv_end.o%s; \ 55 fvtable-verify=std:vtv_end.o%s} \ 56 crtend.o%s" 57 58/* Normally, -lgcc is not needed since everything in it is in the DLL, but we 59 want to allow things to be added to it when installing new versions of 60 GCC without making a new CYGWIN.DLL, so we leave it. Profiling is handled 61 by calling the init function from main. */ 62 63#ifdef ENABLE_SHARED_LIBGCC 64#define SHARED_LIBGCC_SPEC " \ 65 %{static|static-libgcc:-lgcc -lgcc_eh} \ 66 %{!static: \ 67 %{!static-libgcc: \ 68 -lgcc_s -lgcc \ 69 } \ 70 } " 71#else 72#define SHARED_LIBGCC_SPEC " -lgcc " 73#endif 74 75#undef REAL_LIBGCC_SPEC 76#define REAL_LIBGCC_SPEC SHARED_LIBGCC_SPEC 77 78/* We have to dynamic link to get to the system DLLs. All of libc, libm and 79 the Unix stuff is in cygwin.dll. The import library is called 80 'libcygwin.a'. For Windows applications, include more libraries, but 81 always include kernel32. We'd like to specific subsystem windows to 82 ld, but that doesn't work just yet. */ 83 84#undef LIB_SPEC 85#define LIB_SPEC "\ 86 %{pg:-lgmon} \ 87 %{pthread: } \ 88 -lcygwin \ 89 %{mwindows:-lgdi32 -lcomdlg32} \ 90 %{fvtable-verify=preinit:-lvtv -lpsapi; \ 91 fvtable-verify=std:-lvtv -lpsapi} \ 92 -ladvapi32 -lshell32 -luser32 -lkernel32" 93 94/* To implement C++ function replacement we always wrap the cxx 95 malloc-like operators. See N2800 #17.6.4.6 [replacement.functions] */ 96#define CXX_WRAP_SPEC_LIST " \ 97 --wrap _Znwj \ 98 --wrap _Znaj \ 99 --wrap _ZdlPv \ 100 --wrap _ZdaPv \ 101 --wrap _ZnwjRKSt9nothrow_t \ 102 --wrap _ZnajRKSt9nothrow_t \ 103 --wrap _ZdlPvRKSt9nothrow_t \ 104 --wrap _ZdaPvRKSt9nothrow_t \ 105" 106 107#if defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) 108 109#if USE_CYGWIN_LIBSTDCXX_WRAPPERS 110/* Default on, only explict -mno disables. */ 111#define CXX_WRAP_SPEC_OPT "!mno-use-libstdc-wrappers" 112#else 113/* Default off, only explict -m enables. */ 114#define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers" 115#endif 116 117#define CXX_WRAP_SPEC "%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}" 118 119#else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 120 121#define CXX_WRAP_SPEC "" 122 123#endif /* ?defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 124 125#define LINK_SPEC "\ 126 %{mwindows:--subsystem windows} \ 127 %{mconsole:--subsystem console} \ 128 " CXX_WRAP_SPEC " \ 129 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 130 %{shared: --shared} %{mdll:--dll} \ 131 %{static:-Bstatic} %{!static:-Bdynamic} \ 132 %{shared|mdll: --enable-auto-image-base -e __cygwin_dll_entry@12} \ 133 --dll-search-prefix=cyg \ 134 %{!shared: %{!mdll: --large-address-aware --tsaware}}" 135 136/* Binutils does not handle weak symbols from dlls correctly. For now, 137 do not use them unnecessarily in gthr-posix.h. */ 138#define GTHREAD_USE_WEAK 0 139 140/* Every program on cygwin links against cygwin1.dll which contains 141 the pthread routines. There is no need to explicitly link them 142 and the -pthread flag is accepted only for compatibility. */ 143#undef GOMP_SELF_SPECS 144#define GOMP_SELF_SPECS "" 145#undef GTM_SELF_SPECS 146#define GTM_SELF_SPECS "" 147 148/* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 149#if DWARF2_UNWIND_INFO 150#define LIBGCC_EH_EXTN "" 151#else 152#define LIBGCC_EH_EXTN "-sjlj" 153#endif 154#define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll" 155 156/* We should find a way to not have to update this manually. */ 157#define LIBGCJ_SONAME "cyggcj" /*LIBGCC_EH_EXTN*/ "-16.dll" 158 159