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) 1995-2013 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() /* Nothing. */ 22 23 #undef CPP_SPEC 24 #define CPP_SPEC "%(cpp_cpu) %{posix:-D_POSIX_SOURCE} \ 25 -D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix \ 26 %{mwin32:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}} \ 27 %{!nostdinc:%{!mno-win32:-idirafter ../include/w32api%s -idirafter ../../include/w32api%s}}\ 28 " 29 30 #undef STARTFILE_SPEC 31 #define STARTFILE_SPEC "\ 32 %{!shared: %{!mdll: crt0%O%s \ 33 %{pg:gcrt0%O%s}}}\ 34 crtbegin.o%s" 35 36 #undef ENDFILE_SPEC 37 #define ENDFILE_SPEC \ 38 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}\ 39 crtend.o%s" 40 41 /* Normally, -lgcc is not needed since everything in it is in the DLL, but we 42 want to allow things to be added to it when installing new versions of 43 GCC without making a new CYGWIN.DLL, so we leave it. Profiling is handled 44 by calling the init function from main. */ 45 46 #ifdef ENABLE_SHARED_LIBGCC 47 #define SHARED_LIBGCC_SPEC " \ 48 %{static|static-libgcc:-lgcc -lgcc_eh} \ 49 %{!static: \ 50 %{!static-libgcc: \ 51 -lgcc_s -lgcc \ 52 } \ 53 } " 54 #else 55 #define SHARED_LIBGCC_SPEC " -lgcc " 56 #endif 57 58 #undef REAL_LIBGCC_SPEC 59 #define REAL_LIBGCC_SPEC SHARED_LIBGCC_SPEC 60 61 /* We have to dynamic link to get to the system DLLs. All of libc, libm and 62 the Unix stuff is in cygwin.dll. The import library is called 63 'libcygwin.a'. For Windows applications, include more libraries, but 64 always include kernel32. We'd like to specific subsystem windows to 65 ld, but that doesn't work just yet. */ 66 67 #undef LIB_SPEC 68 #define LIB_SPEC "\ 69 %{pg:-lgmon} \ 70 -lcygwin \ 71 %{mwindows:-lgdi32 -lcomdlg32} \ 72 -ladvapi32 -lshell32 -luser32 -lkernel32" 73 74 /* To implement C++ function replacement we always wrap the cxx 75 malloc-like operators. See N2800 #17.6.4.6 [replacement.functions] */ 76 #define CXX_WRAP_SPEC_LIST " \ 77 --wrap _Znwj \ 78 --wrap _Znaj \ 79 --wrap _ZdlPv \ 80 --wrap _ZdaPv \ 81 --wrap _ZnwjRKSt9nothrow_t \ 82 --wrap _ZnajRKSt9nothrow_t \ 83 --wrap _ZdlPvRKSt9nothrow_t \ 84 --wrap _ZdaPvRKSt9nothrow_t \ 85 " 86 87 #if defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) 88 89 #if USE_CYGWIN_LIBSTDCXX_WRAPPERS 90 /* Default on, only explict -mno disables. */ 91 #define CXX_WRAP_SPEC_OPT "!mno-use-libstdc-wrappers" 92 #else 93 /* Default off, only explict -m enables. */ 94 #define CXX_WRAP_SPEC_OPT "muse-libstdc-wrappers" 95 #endif 96 97 #define CXX_WRAP_SPEC "%{" CXX_WRAP_SPEC_OPT ":" CXX_WRAP_SPEC_LIST "}" 98 99 #else /* !defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 100 101 #define CXX_WRAP_SPEC "" 102 103 #endif /* ?defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS) */ 104 105 #define LINK_SPEC "\ 106 %{mwindows:--subsystem windows} \ 107 %{mconsole:--subsystem console} \ 108 " CXX_WRAP_SPEC " \ 109 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 110 %{shared: --shared} %{mdll:--dll} \ 111 %{static:-Bstatic} %{!static:-Bdynamic} \ 112 %{shared|mdll: --enable-auto-image-base -e __cygwin_dll_entry@12} \ 113 --dll-search-prefix=cyg -tsaware" 114 115 /* Binutils does not handle weak symbols from dlls correctly. For now, 116 do not use them unnecessarily in gthr-posix.h. */ 117 #define GTHREAD_USE_WEAK 0 118 119 /* Every program on cygwin links against cygwin1.dll which contains 120 the pthread routines. There is no need to explicitly link them 121 and the -pthread flag is not recognized. */ 122 #undef GOMP_SELF_SPECS 123 #define GOMP_SELF_SPECS "" 124 #undef GTM_SELF_SPECS 125 #define GTM_SELF_SPECS "" 126 127 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 128 #if DWARF2_UNWIND_INFO 129 #define LIBGCC_EH_EXTN "" 130 #else 131 #define LIBGCC_EH_EXTN "-sjlj" 132 #endif 133 #define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll" 134 135 /* We should find a way to not have to update this manually. */ 136 #define LIBGCJ_SONAME "cyggcj" /*LIBGCC_EH_EXTN*/ "-13.dll" 137 138