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) 1997-2022 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 #define EXTRA_TARGET_D_OS_VERSIONS() \ 57 do \ 58 { \ 59 builtin_version ("MinGW"); \ 60 if (TARGET_64BIT && ix86_abi == MS_ABI) \ 61 builtin_version ("Win64"); \ 62 else if (!TARGET_64BIT) \ 63 builtin_version ("Win32"); \ 64 builtin_version ("CRuntime_Microsoft"); \ 65 } \ 66 while (0) 67 68 #ifndef TARGET_USE_PTHREAD_BY_DEFAULT 69 #define SPEC_PTHREAD1 "pthread" 70 #define SPEC_PTHREAD2 "!no-pthread" 71 #else 72 #define SPEC_PTHREAD1 "!no-pthread" 73 #define SPEC_PTHREAD2 "pthread" 74 #endif 75 76 #undef SUB_LINK_ENTRY32 77 #undef SUB_LINK_ENTRY64 78 #define SUB_LINK_ENTRY32 "-e _DllMainCRTStartup@12" 79 #if defined(USE_MINGW64_LEADING_UNDERSCORES) 80 #define SUB_LINK_ENTRY64 "-e _DllMainCRTStartup" 81 #else 82 #define SUB_LINK_ENTRY64 "-e DllMainCRTStartup" 83 #endif 84 85 #undef SUB_LINK_ENTRY 86 #if TARGET_64BIT_DEFAULT 87 #define SUB_LINK_ENTRY SUB_LINK_ENTRY64 88 #else 89 #define SUB_LINK_ENTRY SUB_LINK_ENTRY32 90 #endif 91 92 #undef NATIVE_SYSTEM_HEADER_COMPONENT 93 #define NATIVE_SYSTEM_HEADER_COMPONENT "MINGW" 94 95 #undef CPP_SPEC 96 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} " \ 97 "%{" SPEC_PTHREAD1 ":-D_REENTRANT} " \ 98 "%{" SPEC_PTHREAD2 ": } " 99 100 /* For Windows applications, include more libraries, but always include 101 kernel32. */ 102 #undef LIB_SPEC 103 #define LIB_SPEC "%{pg:-lgmon} %{" SPEC_PTHREAD1 ":-lpthread} " \ 104 "%{" SPEC_PTHREAD2 ": } " \ 105 "%{mwindows:-lgdi32 -lcomdlg32} " \ 106 "%{fvtable-verify=preinit:-lvtv -lpsapi; \ 107 fvtable-verify=std:-lvtv -lpsapi} " \ 108 "-ladvapi32 -lshell32 -luser32 -lkernel32" 109 110 /* Weak symbols do not get resolved if using a Windows dll import lib. 111 Make the unwind registration references strong undefs. */ 112 #if DWARF2_UNWIND_INFO 113 /* DW2-unwind is just available for 32-bit mode. */ 114 #if TARGET_64BIT_DEFAULT 115 #define SHARED_LIBGCC_UNDEFS_SPEC \ 116 "%{m32: %{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}}" 117 #else 118 #define SHARED_LIBGCC_UNDEFS_SPEC \ 119 "%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}" 120 #endif 121 #else 122 #define SHARED_LIBGCC_UNDEFS_SPEC "" 123 #endif 124 125 #undef SUBTARGET_EXTRA_SPECS 126 #define SUBTARGET_EXTRA_SPECS \ 127 { "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC } 128 129 #if ! MINGW_DEFAULT_LARGE_ADDR_AWARE 130 /* This is used without --enable-large-address-aware. */ 131 # define LINK_SPEC_LARGE_ADDR_AWARE "" 132 #elif ! TARGET_BI_ARCH 133 /* This is used on i686-pc-mingw32 with --enable-large-address-aware. */ 134 # define LINK_SPEC_LARGE_ADDR_AWARE \ 135 "%{!shared:%{!mdll:--large-address-aware}}" 136 #elif TARGET_64BIT_DEFAULT 137 /* This is used on x86_64-pc-mingw32 with --enable-large-address-aware. 138 ??? It probably doesn't work, because the linker emulation defaults 139 to i386pep, the 64-bit mode that does not support 140 --large-address-aware, and x86_64-pc-mingw32 does not override the 141 emulation to i386pe for -m32, unlike x86_64-w64-mingw32. */ 142 # define LINK_SPEC_LARGE_ADDR_AWARE \ 143 "%{!shared:%{!mdll:%{m32:--large-address-aware}}}" 144 #else 145 /* This would only be used if someone introduced a biarch 146 configuration that defaulted to 32-bit. */ 147 # define LINK_SPEC_LARGE_ADDR_AWARE \ 148 "%{!shared:%{!mdll:%{!m64:--large-address-aware}}}" 149 #endif 150 151 #if HAVE_LD_PE_DISABLE_DYNAMICBASE 152 # define LINK_SPEC_DISABLE_DYNAMICBASE \ 153 "%{!shared:%{!mdll:%{no-pie:--disable-dynamicbase}}}" 154 #else 155 # define LINK_SPEC_DISABLE_DYNAMICBASE "" 156 #endif 157 158 #define LINK_SPEC "%{mwindows:--subsystem windows} \ 159 %{mconsole:--subsystem console} \ 160 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 161 %{shared: --shared} %{mdll:--dll} \ 162 %{static:-Bstatic} %{!static:-Bdynamic} \ 163 %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \ 164 " LINK_SPEC_LARGE_ADDR_AWARE "\ 165 " LINK_SPEC_DISABLE_DYNAMICBASE "\ 166 %(shared_libgcc_undefs)" 167 168 /* Include in the mingw32 libraries with libgcc */ 169 #ifdef ENABLE_SHARED_LIBGCC 170 #define SHARED_LIBGCC_SPEC " \ 171 %{static|static-libgcc:-lgcc -lgcc_eh} \ 172 %{!static: \ 173 %{!static-libgcc: \ 174 %{!shared: \ 175 %{!shared-libgcc:-lgcc -lgcc_eh} \ 176 %{shared-libgcc:-lgcc_s -lgcc} \ 177 } \ 178 %{shared:-lgcc_s -lgcc} \ 179 } \ 180 } " 181 #else 182 #define SHARED_LIBGCC_SPEC " -lgcc " 183 #endif 184 #undef REAL_LIBGCC_SPEC 185 #define REAL_LIBGCC_SPEC \ 186 "%{mthreads:-lmingwthrd} -lmingw32 \ 187 " SHARED_LIBGCC_SPEC " \ 188 -lmoldname -lmingwex -lmsvcrt -lkernel32" 189 190 #undef STARTFILE_SPEC 191 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \ 192 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \ 193 crtbegin.o%s \ 194 %{fvtable-verify=none:%s; \ 195 fvtable-verify=preinit:vtv_start.o%s; \ 196 fvtable-verify=std:vtv_start.o%s}" 197 198 #undef ENDFILE_SPEC 199 #define ENDFILE_SPEC \ 200 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 201 %{!shared:%:if-exists(default-manifest.o%s)}\ 202 %{fvtable-verify=none:%s; \ 203 fvtable-verify=preinit:vtv_end.o%s; \ 204 fvtable-verify=std:vtv_end.o%s} \ 205 crtend.o%s" 206 207 /* Override startfile prefix defaults. */ 208 #ifndef STANDARD_STARTFILE_PREFIX_1 209 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/" 210 #endif 211 #ifndef STANDARD_STARTFILE_PREFIX_2 212 #define STANDARD_STARTFILE_PREFIX_2 "" 213 #endif 214 215 /* For native mingw-version we need to take care that NATIVE_SYSTEM_HEADER_DIR 216 macro contains POSIX-style path. See bug 52947. */ 217 #undef NATIVE_SYSTEM_HEADER_DIR 218 #define NATIVE_SYSTEM_HEADER_DIR "/mingw/include" 219 220 /* Output STRING, a string representing a filename, to FILE. 221 We canonicalize it to be in Unix format (backslashes are replaced 222 forward slashes. */ 223 #undef OUTPUT_QUOTED_STRING 224 #define OUTPUT_QUOTED_STRING(FILE, STRING) \ 225 do { \ 226 const char *_string = (const char *) (STRING); \ 227 char c; \ 228 \ 229 putc ('\"', (FILE)); \ 230 \ 231 while ((c = *_string++) != 0) \ 232 { \ 233 if (c == '\\') \ 234 c = '/'; \ 235 \ 236 if (ISPRINT (c)) \ 237 { \ 238 if (c == '\"') \ 239 putc ('\\', (FILE)); \ 240 putc (c, (FILE)); \ 241 } \ 242 else \ 243 fprintf ((FILE), "\\%03o", (unsigned char) c); \ 244 } \ 245 \ 246 putc ('\"', (FILE)); \ 247 } while (0) 248 249 /* Define as short unsigned for compatibility with MS runtime. */ 250 #undef WINT_TYPE 251 #define WINT_TYPE "short unsigned int" 252 253 /* mingw32 uses the -mthreads option to enable thread support. */ 254 #undef GOMP_SELF_SPECS 255 #define GOMP_SELF_SPECS "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \ 256 "-mthreads -pthread}" 257 #undef GTM_SELF_SPECS 258 #define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}" 259 260 /* mingw32 atexit function is safe to use in shared libraries. Use it 261 to register C++ static destructors. */ 262 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true 263 264 /* Contains a pointer to type target_ovr_attr defining the target specific 265 overrides of format attributes. See c-format.h for structure 266 definition. */ 267 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES 268 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides 269 270 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */ 271 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 272 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3 273 274 /* Custom initialization for warning -Wpedantic-ms-format for c-format. */ 275 #undef TARGET_OVERRIDES_FORMAT_INIT 276 #define TARGET_OVERRIDES_FORMAT_INIT msformat_init 277 278 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */ 279 #undef TARGET_FORMAT_TYPES 280 #define TARGET_FORMAT_TYPES mingw_format_attributes 281 282 #undef TARGET_N_FORMAT_TYPES 283 #define TARGET_N_FORMAT_TYPES 3 284 285 #define HAVE_ENABLE_EXECUTE_STACK 286 #undef CHECK_EXECUTE_STACK_ENABLED 287 #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable 288 289 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */ 290 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 291 #if DWARF2_UNWIND_INFO 292 #define LIBGCC_EH_EXTN "_dw2" 293 #else 294 #define LIBGCC_EH_EXTN "_sjlj" 295 #endif 296 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll" 297 298