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) 1997-2020 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 #if ! MINGW_DEFAULT_LARGE_ADDR_AWARE 118 /* This is used without --enable-large-address-aware. */ 119 # define LINK_SPEC_LARGE_ADDR_AWARE "" 120 #elif ! TARGET_BI_ARCH 121 /* This is used on i686-pc-mingw32 with --enable-large-address-aware. */ 122 # define LINK_SPEC_LARGE_ADDR_AWARE \ 123 "%{!shared:%{!mdll:--large-address-aware}}" 124 #elif TARGET_64BIT_DEFAULT 125 /* This is used on x86_64-pc-mingw32 with --enable-large-address-aware. 126 ??? It probably doesn't work, because the linker emulation defaults 127 to i386pep, the 64-bit mode that does not support 128 --large-address-aware, and x86_64-pc-mingw32 does not override the 129 emulation to i386pe for -m32, unlike x86_64-w64-mingw32. */ 130 # define LINK_SPEC_LARGE_ADDR_AWARE \ 131 "%{!shared:%{!mdll:%{m32:--large-address-aware}}}" 132 #else 133 /* This would only be used if someone introduced a biarch 134 configuration that defaulted to 32-bit. */ 135 # define LINK_SPEC_LARGE_ADDR_AWARE \ 136 "%{!shared:%{!mdll:%{!m64:--large-address-aware}}}" 137 #endif 138 139 #define LINK_SPEC "%{mwindows:--subsystem windows} \ 140 %{mconsole:--subsystem console} \ 141 %{shared: %{mdll: %eshared and mdll are not compatible}} \ 142 %{shared: --shared} %{mdll:--dll} \ 143 %{static:-Bstatic} %{!static:-Bdynamic} \ 144 %{shared|mdll: " SUB_LINK_ENTRY " --enable-auto-image-base} \ 145 " LINK_SPEC_LARGE_ADDR_AWARE "\ 146 %(shared_libgcc_undefs)" 147 148 /* Include in the mingw32 libraries with libgcc */ 149 #ifdef ENABLE_SHARED_LIBGCC 150 #define SHARED_LIBGCC_SPEC " \ 151 %{static|static-libgcc:-lgcc -lgcc_eh} \ 152 %{!static: \ 153 %{!static-libgcc: \ 154 %{!shared: \ 155 %{!shared-libgcc:-lgcc -lgcc_eh} \ 156 %{shared-libgcc:-lgcc_s -lgcc} \ 157 } \ 158 %{shared:-lgcc_s -lgcc} \ 159 } \ 160 } " 161 #else 162 #define SHARED_LIBGCC_SPEC " -lgcc " 163 #endif 164 #undef REAL_LIBGCC_SPEC 165 #define REAL_LIBGCC_SPEC \ 166 "%{mthreads:-lmingwthrd} -lmingw32 \ 167 " SHARED_LIBGCC_SPEC " \ 168 -lmoldname -lmingwex -lmsvcrt" 169 170 #undef STARTFILE_SPEC 171 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \ 172 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \ 173 crtbegin.o%s \ 174 %{fvtable-verify=none:%s; \ 175 fvtable-verify=preinit:vtv_start.o%s; \ 176 fvtable-verify=std:vtv_start.o%s}" 177 178 #undef ENDFILE_SPEC 179 #define ENDFILE_SPEC \ 180 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 181 %{!shared:%:if-exists(default-manifest.o%s)}\ 182 %{fvtable-verify=none:%s; \ 183 fvtable-verify=preinit:vtv_end.o%s; \ 184 fvtable-verify=std:vtv_end.o%s} \ 185 crtend.o%s" 186 187 /* Override startfile prefix defaults. */ 188 #ifndef STANDARD_STARTFILE_PREFIX_1 189 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/" 190 #endif 191 #ifndef STANDARD_STARTFILE_PREFIX_2 192 #define STANDARD_STARTFILE_PREFIX_2 "" 193 #endif 194 195 /* For native mingw-version we need to take care that NATIVE_SYSTEM_HEADER_DIR 196 macro contains POSIX-style path. See bug 52947. */ 197 #undef NATIVE_SYSTEM_HEADER_DIR 198 #define NATIVE_SYSTEM_HEADER_DIR "/mingw/include" 199 200 /* Output STRING, a string representing a filename, to FILE. 201 We canonicalize it to be in Unix format (backslashes are replaced 202 forward slashes. */ 203 #undef OUTPUT_QUOTED_STRING 204 #define OUTPUT_QUOTED_STRING(FILE, STRING) \ 205 do { \ 206 const char *_string = (const char *) (STRING); \ 207 char c; \ 208 \ 209 putc ('\"', (FILE)); \ 210 \ 211 while ((c = *_string++) != 0) \ 212 { \ 213 if (c == '\\') \ 214 c = '/'; \ 215 \ 216 if (ISPRINT (c)) \ 217 { \ 218 if (c == '\"') \ 219 putc ('\\', (FILE)); \ 220 putc (c, (FILE)); \ 221 } \ 222 else \ 223 fprintf ((FILE), "\\%03o", (unsigned char) c); \ 224 } \ 225 \ 226 putc ('\"', (FILE)); \ 227 } while (0) 228 229 /* Define as short unsigned for compatibility with MS runtime. */ 230 #undef WINT_TYPE 231 #define WINT_TYPE "short unsigned int" 232 233 /* mingw32 uses the -mthreads option to enable thread support. */ 234 #undef GOMP_SELF_SPECS 235 #define GOMP_SELF_SPECS "%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1): " \ 236 "-mthreads -pthread}" 237 #undef GTM_SELF_SPECS 238 #define GTM_SELF_SPECS "%{fgnu-tm:-mthreads -pthread}" 239 240 /* mingw32 atexit function is safe to use in shared libraries. Use it 241 to register C++ static destructors. */ 242 #define TARGET_CXX_USE_ATEXIT_FOR_CXA_ATEXIT hook_bool_void_true 243 244 /* Contains a pointer to type target_ovr_attr defining the target specific 245 overrides of format attributes. See c-format.h for structure 246 definition. */ 247 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES 248 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides 249 250 /* Specify the count of elements in TARGET_OVERRIDES_ATTRIBUTE. */ 251 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 252 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES_COUNT 3 253 254 /* Custom initialization for warning -Wpedantic-ms-format for c-format. */ 255 #undef TARGET_OVERRIDES_FORMAT_INIT 256 #define TARGET_OVERRIDES_FORMAT_INIT msformat_init 257 258 /* MS specific format attributes for ms_printf, ms_scanf, ms_strftime. */ 259 #undef TARGET_FORMAT_TYPES 260 #define TARGET_FORMAT_TYPES mingw_format_attributes 261 262 #undef TARGET_N_FORMAT_TYPES 263 #define TARGET_N_FORMAT_TYPES 3 264 265 #define HAVE_ENABLE_EXECUTE_STACK 266 #undef CHECK_EXECUTE_STACK_ENABLED 267 #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable 268 269 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygming. */ 270 /* This matches SHLIB_SONAME and SHLIB_SOVERSION in t-cygwin. */ 271 #if DWARF2_UNWIND_INFO 272 #define LIBGCC_EH_EXTN "_dw2" 273 #else 274 #define LIBGCC_EH_EXTN "_sjlj" 275 #endif 276 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll" 277 278