1 /* Operating system specific defines to be used when targeting GCC for 2 hosting on Windows32, using GNU tools and the Windows32 API Library. 3 Copyright (C) 1997-2013 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 #undef DEFAULT_ABI 22 #define DEFAULT_ABI MS_ABI 23 24 /* By default, target has a 80387, uses IEEE compatible arithmetic, 25 returns float values in the 387 and needs stack probes. 26 We also align doubles to 64-bits for MSVC default compatibility. 27 Additionally we enable MS_BITFIELD_LAYOUT by default. */ 28 29 #undef TARGET_SUBTARGET_DEFAULT 30 #define TARGET_SUBTARGET_DEFAULT \ 31 (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS \ 32 | MASK_STACK_PROBE | MASK_ALIGN_DOUBLE \ 33 | MASK_MS_BITFIELD_LAYOUT) 34 35 /* See i386/crtdll.h for an alternative definition. _INTEGRAL_MAX_BITS 36 is for compatibility with native compiler. */ 37 #define EXTRA_OS_CPP_BUILTINS() \ 38 do \ 39 { \ 40 builtin_define ("__MSVCRT__"); \ 41 builtin_define ("__MINGW32__"); \ 42 builtin_define ("_WIN32"); \ 43 builtin_define_std ("WIN32"); \ 44 builtin_define_std ("WINNT"); \ 45 builtin_define_with_int_value ("_INTEGRAL_MAX_BITS", \ 46 TYPE_PRECISION (intmax_type_node));\ 47 if (TARGET_64BIT && ix86_abi == MS_ABI) \ 48 { \ 49 builtin_define ("__MINGW64__"); \ 50 builtin_define_std ("WIN64"); \ 51 builtin_define ("_WIN64"); \ 52 } \ 53 } \ 54 while (0) 55 56 #ifndef TARGET_USE_PTHREAD_BY_DEFAULT 57 #define SPEC_PTHREAD1 "pthread" 58 #define SPEC_PTHREAD2 "!no-pthread" 59 #else 60 #define SPEC_PTHREAD1 "!no-pthread" 61 #define SPEC_PTHREAD2 "pthread" 62 #endif 63 64 #undef SUB_LINK_ENTRY32 65 #undef SUB_LINK_ENTRY64 66 #define SUB_LINK_ENTRY32 "-e _DllMainCRTStartup@12" 67 #if defined(USE_MINGW64_LEADING_UNDERSCORES) 68 #define SUB_LINK_ENTRY64 "-e _DllMainCRTStartup" 69 #else 70 #define SUB_LINK_ENTRY64 "-e DllMainCRTStartup" 71 #endif 72 73 #undef SUB_LINK_ENTRY 74 #if TARGET_64BIT_DEFAULT 75 #define SUB_LINK_ENTRY SUB_LINK_ENTRY64 76 #else 77 #define SUB_LINK_ENTRY SUB_LINK_ENTRY32 78 #endif 79 80 #undef NATIVE_SYSTEM_HEADER_COMPONENT 81 #define NATIVE_SYSTEM_HEADER_COMPONENT "MINGW" 82 83 #undef CPP_SPEC 84 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} " \ 85 "%{" SPEC_PTHREAD1 ":-D_REENTRANT} " \ 86 "%{" SPEC_PTHREAD2 ": } " 87 88 /* For Windows applications, include more libraries, but always include 89 kernel32. */ 90 #undef LIB_SPEC 91 #define LIB_SPEC "%{pg:-lgmon} %{" SPEC_PTHREAD1 ":-lpthread} " \ 92 "%{" SPEC_PTHREAD2 ": } " \ 93 "%{mwindows:-lgdi32 -lcomdlg32} " \ 94 "-ladvapi32 -lshell32 -luser32 -lkernel32" 95 96 /* Weak symbols do not get resolved if using a Windows dll import lib. 97 Make the unwind registration references strong undefs. */ 98 #if DWARF2_UNWIND_INFO 99 /* DW2-unwind is just available for 32-bit mode. */ 100 #if TARGET_64BIT_DEFAULT 101 #error DW2 unwind is not available for 64-bit. 102 #endif 103 #define SHARED_LIBGCC_UNDEFS_SPEC \ 104 "%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}" 105 #else 106 #define SHARED_LIBGCC_UNDEFS_SPEC "" 107 #endif 108 109 #undef SUBTARGET_EXTRA_SPECS 110 #define SUBTARGET_EXTRA_SPECS \ 111 { "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC } 112 113 #define LINK_SPEC "%{mwindows:--subsystem windows} \ 114 %{mconsole:--subsystem console} \ 115 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 116 %{shared: --shared} %{mdll:--dll} \ 117 %{static:-Bstatic} %{!static:-Bdynamic} \ 118 %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \ 119 %(shared_libgcc_undefs)" 120 121 /* Include in the mingw32 libraries with libgcc */ 122 #ifdef ENABLE_SHARED_LIBGCC 123 #define SHARED_LIBGCC_SPEC " \ 124 %{static|static-libgcc:-lgcc -lgcc_eh} \ 125 %{!static: \ 126 %{!static-libgcc: \ 127 %{!shared: \ 128 %{!shared-libgcc:-lgcc -lgcc_eh} \ 129 %{shared-libgcc:-lgcc_s -lgcc} \ 130 } \ 131 %{shared:-lgcc_s -lgcc} \ 132 } \ 133 } " 134 #else 135 #define SHARED_LIBGCC_SPEC " -lgcc " 136 #endif 137 #undef REAL_LIBGCC_SPEC 138 #define REAL_LIBGCC_SPEC \ 139 "%{mthreads:-lmingwthrd} -lmingw32 \ 140 "SHARED_LIBGCC_SPEC" \ 141 -lmoldname -lmingwex -lmsvcrt" 142 143 #undef STARTFILE_SPEC 144 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \ 145 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \ 146 crtbegin.o%s" 147 148 #undef ENDFILE_SPEC 149 #define ENDFILE_SPEC \ 150 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 151 crtend.o%s" 152 153 /* Override startfile prefix defaults. */ 154 #ifndef STANDARD_STARTFILE_PREFIX_1 155 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/" 156 #endif 157 #ifndef STANDARD_STARTFILE_PREFIX_2 158 #define STANDARD_STARTFILE_PREFIX_2 "" 159 #endif 160 161 /* For native mingw-version we need to take care that NATIVE_SYSTEM_HEADER_DIR 162 macro contains POSIX-style path. See bug 52947. */ 163 #undef NATIVE_SYSTEM_HEADER_DIR 164 #define NATIVE_SYSTEM_HEADER_DIR "/mingw/include" 165 166 /* Output STRING, a string representing a filename, to FILE. 167 We canonicalize it to be in Unix format (backslashes are replaced 168 forward slashes. */ 169 #undef OUTPUT_QUOTED_STRING 170 #define OUTPUT_QUOTED_STRING(FILE, STRING) \ 171 do { \ 172 const char *_string = (const char *) (STRING); \ 173 char c; \ 174 \ 175 putc ('\"', (FILE)); \ 176 \ 177 while ((c = *_string++) != 0) \ 178 { \ 179 if (c == '\\') \ 180 c = '/'; \ 181 \ 182 if (ISPRINT (c)) \ 183 { \ 184 if (c == '\"') \ 185 putc ('\\', (FILE)); \ 186 putc (c, (FILE)); \ 187 } \ 188 else \ 189 fprintf ((FILE), "\\%03o", (unsigned char) c); \ 190 } \ 191 \ 192 putc ('\"', (FILE)); \ 193 } while (0) 194 195 /* Define as short unsigned for compatibility with MS runtime. */ 196 #undef WINT_TYPE 197 #define WINT_TYPE "short unsigned int" 198 199 /* mingw32 uses the -mthreads option to enable thread support. */ 200 #undef GOMP_SELF_SPECS 201 #define GOMP_SELF_SPECS "%{fopenmp|ftree-parallelize-loops=*: " \ 202 "-mthreads -pthread}" 203 #undef GTM_SELF_SPECS 204 #define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}" 205 206 /* mingw32 atexit function is safe to use in shared libraries. Use it 207 to register C++ static destructors. */ 208 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true 209 210 /* Contains a pointer to type target_ovr_attr defining the target specific 211 overrides of format attributes. See c-format.h for structure 212 definition. */ 213 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES 214 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides 215 216 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */ 217 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 218 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3 219 220 /* Custom initialization for warning -Wpedantic-ms-format for c-format. */ 221 #undef TARGET_OVERRIDES_FORMAT_INIT 222 #define TARGET_OVERRIDES_FORMAT_INIT msformat_init 223 224 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */ 225 #undef TARGET_FORMAT_TYPES 226 #define TARGET_FORMAT_TYPES mingw_format_attributes 227 228 #undef TARGET_N_FORMAT_TYPES 229 #define TARGET_N_FORMAT_TYPES 3 230 231 /* Let defaults.h definition of TARGET_USE_JCR_SECTION apply. */ 232 #undef TARGET_USE_JCR_SECTION 233 234 #define HAVE_ENABLE_EXECUTE_STACK 235 #undef CHECK_EXECUTE_STACK_ENABLED 236 #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable 237 238 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */ 239 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 240 #if DWARF2_UNWIND_INFO 241 #define LIBGCC_EH_EXTN "_dw2" 242 #else 243 #define LIBGCC_EH_EXTN "_sjlj" 244 #endif 245 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll" 246 247 /* We should find a way to not have to update this manually. */ 248 #define LIBGCJ_SONAME "libgcj" /*LIBGCC_EH_EXTN*/ "-13.dll" 249
