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) 1997-2018 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 "%{fvtable-verify=preinit:-lvtv -lpsapi; \ 95 fvtable-verify=std:-lvtv -lpsapi} " \ 96 "-ladvapi32 -lshell32 -luser32 -lkernel32" 97 98 /* Weak symbols do not get resolved if using a Windows dll import lib. 99 Make the unwind registration references strong undefs. */ 100 #if DWARF2_UNWIND_INFO 101 /* DW2-unwind is just available for 32-bit mode. */ 102 #if TARGET_64BIT_DEFAULT 103 #define SHARED_LIBGCC_UNDEFS_SPEC \ 104 "%{m32: %{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}}" 105 #else 106 #define SHARED_LIBGCC_UNDEFS_SPEC \ 107 "%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}" 108 #endif 109 #else 110 #define SHARED_LIBGCC_UNDEFS_SPEC "" 111 #endif 112 113 #undef SUBTARGET_EXTRA_SPECS 114 #define SUBTARGET_EXTRA_SPECS \ 115 { "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC } 116 117 #define LINK_SPEC "%{mwindows:--subsystem windows} \ 118 %{mconsole:--subsystem console} \ 119 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 120 %{shared: --shared} %{mdll:--dll} \ 121 %{static:-Bstatic} %{!static:-Bdynamic} \ 122 %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \ 123 %(shared_libgcc_undefs)" 124 125 /* Include in the mingw32 libraries with libgcc */ 126 #ifdef ENABLE_SHARED_LIBGCC 127 #define SHARED_LIBGCC_SPEC " \ 128 %{static|static-libgcc:-lgcc -lgcc_eh} \ 129 %{!static: \ 130 %{!static-libgcc: \ 131 %{!shared: \ 132 %{!shared-libgcc:-lgcc -lgcc_eh} \ 133 %{shared-libgcc:-lgcc_s -lgcc} \ 134 } \ 135 %{shared:-lgcc_s -lgcc} \ 136 } \ 137 } " 138 #else 139 #define SHARED_LIBGCC_SPEC " -lgcc " 140 #endif 141 #undef REAL_LIBGCC_SPEC 142 #define REAL_LIBGCC_SPEC \ 143 "%{mthreads:-lmingwthrd} -lmingw32 \ 144 " SHARED_LIBGCC_SPEC " \ 145 -lmoldname -lmingwex -lmsvcrt" 146 147 #undef STARTFILE_SPEC 148 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \ 149 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \ 150 crtbegin.o%s \ 151 %{fvtable-verify=none:%s; \ 152 fvtable-verify=preinit:vtv_start.o%s; \ 153 fvtable-verify=std:vtv_start.o%s}" 154 155 #undef ENDFILE_SPEC 156 #define ENDFILE_SPEC \ 157 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 158 %{!shared:%:if-exists(default-manifest.o%s)}\ 159 %{fvtable-verify=none:%s; \ 160 fvtable-verify=preinit:vtv_end.o%s; \ 161 fvtable-verify=std:vtv_end.o%s} \ 162 crtend.o%s" 163 164 /* Override startfile prefix defaults. */ 165 #ifndef STANDARD_STARTFILE_PREFIX_1 166 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/" 167 #endif 168 #ifndef STANDARD_STARTFILE_PREFIX_2 169 #define STANDARD_STARTFILE_PREFIX_2 "" 170 #endif 171 172 /* For native mingw-version we need to take care that NATIVE_SYSTEM_HEADER_DIR 173 macro contains POSIX-style path. See bug 52947. */ 174 #undef NATIVE_SYSTEM_HEADER_DIR 175 #define NATIVE_SYSTEM_HEADER_DIR "/mingw/include" 176 177 /* Output STRING, a string representing a filename, to FILE. 178 We canonicalize it to be in Unix format (backslashes are replaced 179 forward slashes. */ 180 #undef OUTPUT_QUOTED_STRING 181 #define OUTPUT_QUOTED_STRING(FILE, STRING) \ 182 do { \ 183 const char *_string = (const char *) (STRING); \ 184 char c; \ 185 \ 186 putc ('\"', (FILE)); \ 187 \ 188 while ((c = *_string++) != 0) \ 189 { \ 190 if (c == '\\') \ 191 c = '/'; \ 192 \ 193 if (ISPRINT (c)) \ 194 { \ 195 if (c == '\"') \ 196 putc ('\\', (FILE)); \ 197 putc (c, (FILE)); \ 198 } \ 199 else \ 200 fprintf ((FILE), "\\%03o", (unsigned char) c); \ 201 } \ 202 \ 203 putc ('\"', (FILE)); \ 204 } while (0) 205 206 /* Define as short unsigned for compatibility with MS runtime. */ 207 #undef WINT_TYPE 208 #define WINT_TYPE "short unsigned int" 209 210 /* mingw32 uses the -mthreads option to enable thread support. */ 211 #undef GOMP_SELF_SPECS 212 #define GOMP_SELF_SPECS "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \ 213 "-mthreads -pthread}" 214 #undef GTM_SELF_SPECS 215 #define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}" 216 217 /* mingw32 atexit function is safe to use in shared libraries. Use it 218 to register C++ static destructors. */ 219 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true 220 221 /* Contains a pointer to type target_ovr_attr defining the target specific 222 overrides of format attributes. See c-format.h for structure 223 definition. */ 224 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES 225 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides 226 227 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */ 228 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 229 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3 230 231 /* Custom initialization for warning -Wpedantic-ms-format for c-format. */ 232 #undef TARGET_OVERRIDES_FORMAT_INIT 233 #define TARGET_OVERRIDES_FORMAT_INIT msformat_init 234 235 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */ 236 #undef TARGET_FORMAT_TYPES 237 #define TARGET_FORMAT_TYPES mingw_format_attributes 238 239 #undef TARGET_N_FORMAT_TYPES 240 #define TARGET_N_FORMAT_TYPES 3 241 242 #define HAVE_ENABLE_EXECUTE_STACK 243 #undef CHECK_EXECUTE_STACK_ENABLED 244 #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable 245 246 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */ 247 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 248 #if DWARF2_UNWIND_INFO 249 #define LIBGCC_EH_EXTN "_dw2" 250 #else 251 #define LIBGCC_EH_EXTN "_sjlj" 252 #endif 253 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll" 254 255