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.
5 This file is part of GCC.
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)
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.
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/>. */
22 #define DEFAULT_ABI MS_ABI
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. */
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)
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() \
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) \
49 builtin_define ("__MINGW64__"); \
50 builtin_define_std ("WIN64"); \
51 builtin_define ("_WIN64"); \
56 #define EXTRA_TARGET_D_OS_VERSIONS() \
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"); \
68 #ifndef TARGET_USE_PTHREAD_BY_DEFAULT
69 #define SPEC_PTHREAD1 "pthread"
70 #define SPEC_PTHREAD2 "!no-pthread"
72 #define SPEC_PTHREAD1 "!no-pthread"
73 #define SPEC_PTHREAD2 "pthread"
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"
82 #define SUB_LINK_ENTRY64 "-e DllMainCRTStartup"
86 #if TARGET_64BIT_DEFAULT
87 #define SUB_LINK_ENTRY SUB_LINK_ENTRY64
89 #define SUB_LINK_ENTRY SUB_LINK_ENTRY32
92 #undef NATIVE_SYSTEM_HEADER_COMPONENT
93 #define NATIVE_SYSTEM_HEADER_COMPONENT "MINGW"
96 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{mthreads:-D_MT} " \
97 "%{" SPEC_PTHREAD1 ":-D_REENTRANT} " \
98 "%{" SPEC_PTHREAD2 ": } "
100 /* For Windows applications, include more libraries, but always include
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"
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}}"
118 #define SHARED_LIBGCC_UNDEFS_SPEC \
119 "%{shared-libgcc: -u ___register_frame_info -u ___deregister_frame_info}"
122 #define SHARED_LIBGCC_UNDEFS_SPEC ""
125 #undef SUBTARGET_EXTRA_SPECS
126 #define SUBTARGET_EXTRA_SPECS \
127 { "shared_libgcc_undefs", SHARED_LIBGCC_UNDEFS_SPEC }
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}}}"
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}}}"
151 #if HAVE_LD_PE_DISABLE_DYNAMICBASE
152 # define LINK_SPEC_DISABLE_DYNAMICBASE \
153 "%{!shared:%{!mdll:%{no-pie:--disable-dynamicbase}}}"
155 # define LINK_SPEC_DISABLE_DYNAMICBASE ""
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)"
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} \
175 %{!shared-libgcc:-lgcc -lgcc_eh} \
176 %{shared-libgcc:-lgcc_s -lgcc} \
178 %{shared:-lgcc_s -lgcc} \
182 #define SHARED_LIBGCC_SPEC " -lgcc "
184 #undef REAL_LIBGCC_SPEC
185 #define REAL_LIBGCC_SPEC \
186 "%{mthreads:-lmingwthrd} -lmingw32 \
187 " SHARED_LIBGCC_SPEC " \
188 -lmoldname -lmingwex -lmsvcrt -lkernel32"
190 #undef STARTFILE_SPEC
191 #define STARTFILE_SPEC "%{shared|mdll:dllcrt2%O%s} \
192 %{!shared:%{!mdll:crt2%O%s}} %{pg:gcrt2%O%s} \
194 %{fvtable-verify=none:%s; \
195 fvtable-verify=preinit:vtv_start.o%s; \
196 fvtable-verify=std:vtv_start.o%s}"
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} \
207 /* Override startfile prefix defaults. */
208 #ifndef STANDARD_STARTFILE_PREFIX_1
209 #define STANDARD_STARTFILE_PREFIX_1 "/mingw/lib/"
211 #ifndef STANDARD_STARTFILE_PREFIX_2
212 #define STANDARD_STARTFILE_PREFIX_2 ""
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"
220 /* Output STRING, a string representing a filename, to FILE.
221 We canonicalize it to be in Unix format (backslashes are replaced
223 #undef OUTPUT_QUOTED_STRING
224 #define OUTPUT_QUOTED_STRING(FILE, STRING) \
226 const char *_string = (const char *) (STRING); \
229 putc ('\"', (FILE)); \
231 while ((c = *_string++) != 0) \
239 putc ('\\', (FILE)); \
243 fprintf ((FILE), "\\%03o", (unsigned char) c); \
246 putc ('\"', (FILE)); \
249 /* Define as short unsigned for compatibility with MS runtime. */
251 #define WINT_TYPE "short unsigned int"
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}"
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
264 /* Contains a pointer to type target_ovr_attr defining the target specific
265 overrides of format attributes. See c-format.h for structure
267 #undef TARGET_OVERRIDES_FORMAT_ATTRIBUTES
268 #define TARGET_OVERRIDES_FORMAT_ATTRIBUTES mingw_format_attribute_overrides
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
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
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
282 #undef TARGET_N_FORMAT_TYPES
283 #define TARGET_N_FORMAT_TYPES 3
285 #define HAVE_ENABLE_EXECUTE_STACK
286 #undef CHECK_EXECUTE_STACK_ENABLED
287 #define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable
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"
294 #define LIBGCC_EH_EXTN "_sjlj"
296 #define LIBGCC_SONAME "libgcc_s" LIBGCC_EH_EXTN "-1.dll"