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Fix PR55599/sanitizer by disabling static libasan on darwin
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ee890fe2 1/* Target definitions for Darwin (Mac OS X) systems.
5b86a469 2 Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004,
d18d5478 3 2005, 2006, 2007, 2008, 2009, 2010, 2011
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4 Free Software Foundation, Inc.
5 Contributed by Apple Computer Inc.
6
7ec022b2 7This file is part of GCC.
ee890fe2 8
7ec022b2 9GCC is free software; you can redistribute it and/or modify
ee890fe2 10it under the terms of the GNU General Public License as published by
748086b7 11the Free Software Foundation; either version 3, or (at your option)
ee890fe2
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12any later version.
13
7ec022b2 14GCC is distributed in the hope that it will be useful,
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15but WITHOUT ANY WARRANTY; without even the implied warranty of
16MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17GNU General Public License for more details.
18
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19Under Section 7 of GPL version 3, you are granted additional
20permissions described in the GCC Runtime Library Exception, version
213.1, as published by the Free Software Foundation.
22
23You should have received a copy of the GNU General Public License and
24a copy of the GCC Runtime Library Exception along with this program;
25see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
26<http://www.gnu.org/licenses/>. */
ee890fe2 27
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28#ifndef CONFIG_DARWIN_H
29#define CONFIG_DARWIN_H
30
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31/* The definitions in this file are common to all processor types
32 running Darwin, which is the kernel for Mac OS X. Darwin is
33 basically a BSD user layer laid over a Mach kernel, then evolved
34 for many years (at NeXT) in parallel with other Unix systems. So
35 while the runtime is a somewhat idiosyncratic Mach-based thing,
36 other definitions look like they would for a BSD variant. */
37
38/* Although NeXT ran on many different architectures, as of Jan 2001
39 the only supported Darwin targets are PowerPC and x86. */
40
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41/* One of Darwin's NeXT legacies is the Mach-O format, which is partly
42 like a.out and partly like COFF, with additional features like
43 multi-architecture binary support. */
44
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45#define DARWIN_X86 0
46#define DARWIN_PPC 0
7606e68f 47
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48/* Don't assume anything about the header files. */
49#define NO_IMPLICIT_EXTERN_C
50
d42093a1 51/* Suppress g++ attempt to link in the math library automatically. */
abe72dd8 52#define MATH_LIBRARY ""
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53
54/* We have atexit. */
55
56#define HAVE_ATEXIT
57
58/* Define an empty body for the function do_global_dtors() in libgcc2.c. */
59
60#define DO_GLOBAL_DTORS_BODY
61
62/* The string value for __SIZE_TYPE__. */
63
64#ifndef SIZE_TYPE
65#define SIZE_TYPE "long unsigned int"
66#endif
67
68/* Type used for ptrdiff_t, as a string used in a declaration. */
69
70#undef PTRDIFF_TYPE
71#define PTRDIFF_TYPE "int"
72
73/* wchar_t is int. */
74
75#undef WCHAR_TYPE
76#define WCHAR_TYPE "int"
77#undef WCHAR_TYPE_SIZE
78#define WCHAR_TYPE_SIZE 32
79
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80#define INT8_TYPE "signed char"
81#define INT16_TYPE "short int"
82#define INT32_TYPE "int"
83#define INT64_TYPE "long long int"
84#define UINT8_TYPE "unsigned char"
85#define UINT16_TYPE "short unsigned int"
86#define UINT32_TYPE "unsigned int"
87#define UINT64_TYPE "long long unsigned int"
88
89#define INT_LEAST8_TYPE "signed char"
90#define INT_LEAST16_TYPE "short int"
91#define INT_LEAST32_TYPE "int"
92#define INT_LEAST64_TYPE "long long int"
93#define UINT_LEAST8_TYPE "unsigned char"
94#define UINT_LEAST16_TYPE "short unsigned int"
95#define UINT_LEAST32_TYPE "unsigned int"
96#define UINT_LEAST64_TYPE "long long unsigned int"
97
98#define INT_FAST8_TYPE "signed char"
99#define INT_FAST16_TYPE "short int"
100#define INT_FAST32_TYPE "int"
101#define INT_FAST64_TYPE "long long int"
102#define UINT_FAST8_TYPE "unsigned char"
103#define UINT_FAST16_TYPE "short unsigned int"
104#define UINT_FAST32_TYPE "unsigned int"
105#define UINT_FAST64_TYPE "long long unsigned int"
106
107#define INTPTR_TYPE "long int"
108#define UINTPTR_TYPE "long unsigned int"
109
110#define SIG_ATOMIC_TYPE "int"
111
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112/* Default to using the NeXT-style runtime, since that's what is
113 pre-installed on Darwin systems. */
114
fea3ca91 115#define NEXT_OBJC_RUNTIME 1
f37f462a 116
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117/* Don't default to pcc-struct-return, because gcc is the only compiler, and
118 we want to retain compatibility with older gcc versions. */
119
120#undef DEFAULT_PCC_STRUCT_RETURN
121#define DEFAULT_PCC_STRUCT_RETURN 0
122
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123/* True if pragma ms_struct is in effect. */
124extern GTY(()) int darwin_ms_struct;
125
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126#define DRIVER_SELF_SPECS \
127 "%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull", \
128 "%{gused:-g -feliminate-unused-debug-symbols} %<gused", \
129 "%{fapple-kext|mkernel:-static}", \
130 "%{shared:-Zdynamiclib} %<shared"
131
132#define DARWIN_CC1_SPEC \
133 "%{findirect-virtual-calls: -fapple-kext} %<findirect-virtual-calls " \
134 "%{fterminated-vtables: -fapple-kext} %<fterminated-vtables " \
135 "%<filelist* %<framework*"
136
137#define SUBSUBTARGET_OVERRIDE_OPTIONS \
138 do { \
139 darwin_override_options (); \
140 } while (0)
141
142#define SUBTARGET_C_COMMON_OVERRIDE_OPTIONS do { \
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143 if (flag_mkernel || flag_apple_kext) \
144 { \
145 if (flag_use_cxa_atexit == 2) \
146 flag_use_cxa_atexit = 0; \
147 /* kexts should always be built without the coalesced sections \
148 because the kernel loader doesn't grok such sections. */ \
149 flag_weak = 0; \
150 /* No RTTI in kexts. */ \
151 flag_rtti = 0; \
152 } \
153 } while (0)
f475fd3c 154
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155/* Machine dependent cpp options. Don't add more options here, add
156 them to darwin_cpp_builtins in darwin-c.c. */
ee890fe2 157
ee890fe2 158#undef CPP_SPEC
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159#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}" \
160 " %{pthread:-D_REENTRANT}"
ee890fe2 161
48aec0bc 162/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
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163 precomp, libtool, and fat build additions.
164
165 In general, random Darwin linker flags should go into LINK_SPEC
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166 instead of LINK_COMMAND_SPEC. The command spec is better for
167 specifying the handling of options understood by generic Unix
168 linkers, and for positional arguments like libraries. */
50eb566f 169
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170#define LINK_COMMAND_SPEC_A \
171 "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
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172 %(linker)" \
173 LINK_PLUGIN_SPEC \
174 "%{flto*:%<fcompare-debug*} \
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175 %{flto*} \
176 %l %X %{s} %{t} %{Z} %{u*} \
177 %{e*} %{r} \
178 %{o*}%{!o:-o a.out} \
179 %{!nostdlib:%{!nostartfiles:%S}} \
180 %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \
181 %{fopenmp|ftree-parallelize-loops=*: \
182 %{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \
3157880f 183 %{fsanitize=address: -framework CoreFoundation -lasan } \
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184 %{fgnu-tm: \
185 %{static|static-libgcc|static-libstdc++|static-libgfortran: libitm.a%s; : -litm } } \
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186 %{!nostdlib:%{!nodefaultlibs:\
187 %(link_ssp) %(link_gcc_c_sequence)\
188 }}\
189 %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}"
50eb566f 190
7f814c0b 191#define DSYMUTIL "\ndsymutil"
50eb566f 192
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193#define DSYMUTIL_SPEC \
194 "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
195 %{v} \
196 %{gdwarf-2:%{!gstabs*:%{!g0: -idsym}}}\
197 %{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \
198 %{gdwarf-2:%{!gstabs*:%{!g0: -dsym}}}}}}}}}}}"
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199
200#define LINK_COMMAND_SPEC LINK_COMMAND_SPEC_A DSYMUTIL_SPEC
48aec0bc 201
7e82085a 202/* Tell collect2 to run dsymutil for us as necessary. */
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203#define COLLECT_RUN_DSYMUTIL 1
204
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205/* We only want one instance of %G, since libSystem (Darwin's -lc) does not depend
206 on libgcc. */
207#undef LINK_GCC_C_SEQUENCE_SPEC
208#define LINK_GCC_C_SEQUENCE_SPEC "%G %L"
209
9281e73d 210#ifdef TARGET_SYSTEM_ROOT
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211#define LINK_SYSROOT_SPEC \
212 "%{isysroot*:-syslibroot %*;:-syslibroot " TARGET_SYSTEM_ROOT "}"
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213#else
214#define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}"
215#endif
216
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217#define PIE_SPEC "%{fpie|pie|fPIE:}"
218
48aec0bc 219/* Please keep the random linker options in alphabetical order (modulo
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220 'Z' and 'no' prefixes). Note that options taking arguments may appear
221 multiple times on a command line with different arguments each time,
222 so put a * after their names so all of them get passed. */
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223#define LINK_SPEC \
224 "%{static}%{!static:-dynamic} \
225 %:remove-outfile(-ldl) \
226 %:remove-outfile(-lm) \
227 %:remove-outfile(-lpthread) \
228 %{fgnu-runtime: %{static|static-libgcc: \
229 %:replace-outfile(-lobjc libobjc-gnu.a%s); \
230 :%:replace-outfile(-lobjc -lobjc-gnu ) } }\
231 %{static|static-libgcc|static-libgfortran:%:replace-outfile(-lgfortran libgfortran.a%s)}\
232 %{static|static-libgcc|static-libstdc++|static-libgfortran:%:replace-outfile(-lgomp libgomp.a%s)}\
233 %{static|static-libgcc|static-libstdc++:%:replace-outfile(-lstdc++ libstdc++.a%s)}\
234 %{!Zdynamiclib: \
235 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \
236 %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \
237 %{Zbundle:-bundle} \
238 %{Zbundle_loader*:-bundle_loader %*} \
239 %{client_name*} \
240 %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\
241} \
242 %{current_version*:%e-current_version only allowed with -dynamiclib} \
243 %{Zforce_flat_namespace:-force_flat_namespace} \
244 %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \
245 %{keep_private_externs} \
246 %{private_bundle} \
247 } \
248 %{Zdynamiclib: -dylib \
249 %{Zbundle:%e-bundle not allowed with -dynamiclib} \
250 %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \
251 %{client_name*:%e-client_name not allowed with -dynamiclib} \
252 %{compatibility_version*:-dylib_compatibility_version %*} \
253 %{current_version*:-dylib_current_version %*} \
254 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch)} \
255 %{!Zforce_cpusubtype_ALL: -arch %(darwin_subarch)} \
256 %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \
257 %{Zinstall_name*:-dylib_install_name %*} \
258 %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \
259 %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \
260 } \
261 %{Zall_load:-all_load} \
262 %{Zallowable_client*:-allowable_client %*} \
263 %{Zbind_at_load:-bind_at_load} \
264 %{Zarch_errors_fatal:-arch_errors_fatal} \
265 %{Zdead_strip:-dead_strip} \
266 %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \
267 %{Zdylib_file*:-dylib_file %*} \
268 %{Zdynamic:-dynamic}\
269 %{Zexported_symbols_list*:-exported_symbols_list %*} \
270 %{Zflat_namespace:-flat_namespace} \
271 %{headerpad_max_install_names} \
272 %{Zimage_base*:-image_base %*} \
273 %{Zinit*:-init %*} \
274 %{!mmacosx-version-min=*:-macosx_version_min %(darwin_minversion)} \
275 %{mmacosx-version-min=*:-macosx_version_min %*} \
276 %{nomultidefs} \
277 %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \
278 %{Zmultiply_defined*:-multiply_defined %*} \
279 %{!Zmultiply_defined*:%{shared-libgcc: \
280 %:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \
281 %:version-compare(< 10.5 mmacosx-version-min= suppress)}} \
282 %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
0e9197f5 283 " PIE_SPEC " \
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284 %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
285 %{read_only_relocs} \
286 %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
287 %{Zsegaddr*:-segaddr %*} \
288 %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \
289 %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \
290 %{Zseg_addr_table*: -seg_addr_table %*} \
291 %{Zfn_seg_addr_table_filename*:-seg_addr_table_filename %*} \
292 %{sub_library*} %{sub_umbrella*} \
293 " LINK_SYSROOT_SPEC " \
294 %{twolevel_namespace} %{twolevel_namespace_hints} \
295 %{Zumbrella*: -umbrella %*} \
296 %{undefined*} \
297 %{Zunexported_symbols_list*:-unexported_symbols_list %*} \
298 %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \
299 %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \
300 %{X} \
301 %{y*} \
302 %{w} \
303 %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \
304 %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \
305 %{whatsloaded} %{dylinker_install_name*} \
306 %{dylinker} %{Mach} "
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307
308
ed5b9f96 309/* Machine dependent libraries. */
ee890fe2 310
5fa5a27c 311#define LIB_SPEC "%{!static:-lSystem}"
ee890fe2 312
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313/* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib
314 libraries to link against, and by not linking against libgcc_s on
315 earlier-than-10.3.9.
316
317 Note that by default, -lgcc_eh is not linked against! This is
318 because in a future version of Darwin the EH frame information may
319 be in a new format, or the fallback routine might be changed; if
320 you want to explicitly link against the static version of those
321 routines, because you know you don't need to unwind through system
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322 libraries, you need to explicitly say -static-libgcc.
323
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324 If it is linked against, it has to be before -lgcc, because it may
325 need symbols from -lgcc. */
040b1c5a 326#undef REAL_LIBGCC_SPEC
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327#define REAL_LIBGCC_SPEC \
328 "%{static-libgcc|static: -lgcc_eh -lgcc; \
329 shared-libgcc|fexceptions|fgnu-runtime: \
330 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \
331 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \
332 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \
333 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \
334 -lgcc ; \
335 :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \
336 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \
337 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \
338 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \
339 -lgcc }"
083cad55 340
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341/* We specify crt0.o as -lcrt0.o so that ld will search the library path.
342
343 crt3.o provides __cxa_atexit on systems that don't have it. Since
344 it's only used with C++, which requires passing -shared-libgcc, key
345 off that to avoid unnecessarily adding a destructor to every
346 powerpc program built. */
ee890fe2 347
48aec0bc 348#undef STARTFILE_SPEC
dd2e44f0 349#define STARTFILE_SPEC \
e2362f5d 350 "%{Zdynamiclib: %(darwin_dylib1) %{fgnu-tm: -lcrttms.o}} \
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351 %{!Zdynamiclib:%{Zbundle:%{!static: \
352 %:version-compare(< 10.6 mmacosx-version-min= -lbundle1.o) \
353 %{fgnu-tm: -lcrttms.o}}} \
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IS
354 %{!Zbundle:%{pg:%{static:-lgcrt0.o} \
355 %{!static:%{object:-lgcrt0.o} \
356 %{!object:%{preload:-lgcrt0.o} \
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357 %{!preload:-lgcrt1.o \
358 %:version-compare(>= 10.8 mmacosx-version-min= -no_new_main) \
359 %(darwin_crt2)}}}} \
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360 %{!pg:%{static:-lcrt0.o} \
361 %{!static:%{object:-lcrt0.o} \
362 %{!object:%{preload:-lcrt0.o} \
363 %{!preload: %(darwin_crt1) \
364 %(darwin_crt2)}}}}}} \
365 %{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}"
7606e68f 366
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367/* We want a destructor last in the list. */
368#define ENDFILE_SPEC "%{fgnu-tm: -lcrttme.o}"
ee890fe2 369
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370#define DARWIN_EXTRA_SPECS \
371 { "darwin_crt1", DARWIN_CRT1_SPEC }, \
372 { "darwin_dylib1", DARWIN_DYLIB1_SPEC }, \
373 { "darwin_minversion", DARWIN_MINVERSION_SPEC },
742163c0 374
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375#define DARWIN_DYLIB1_SPEC \
376 "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \
99b375d0 377 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -ldylib1.10.5.o)"
742163c0 378
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379#define DARWIN_CRT1_SPEC \
380 "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \
99b375d0 381 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lcrt1.10.5.o) \
3127f133 382 %:version-compare(>< 10.6 10.8 mmacosx-version-min= -lcrt1.10.6.o) \
e2362f5d 383 %{fgnu-tm: -lcrttms.o}"
742163c0 384
c4e18b1c 385/* Default Darwin ASM_SPEC, very simple. */
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386#define ASM_SPEC "-arch %(darwin_arch) \
387 %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \
388 %{static}"
c4e18b1c 389
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IS
390/* Default ASM_DEBUG_SPEC. Darwin's as cannot currently produce dwarf
391 debugging data. */
392
393#define ASM_DEBUG_SPEC "%{g*:%{!g0:%{!gdwarf*:--gstabs}}}"
394
4d04fa05 395/* We still allow output of STABS. */
ee890fe2 396
23532de9 397#define DBX_DEBUGGING_INFO 1
ee890fe2 398
2d84a337 399#define DWARF2_DEBUGGING_INFO 1
80c85ca2 400#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
eeab4d81 401
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402#define DEBUG_FRAME_SECTION "__DWARF,__debug_frame,regular,debug"
403#define DEBUG_INFO_SECTION "__DWARF,__debug_info,regular,debug"
404#define DEBUG_ABBREV_SECTION "__DWARF,__debug_abbrev,regular,debug"
405#define DEBUG_ARANGES_SECTION "__DWARF,__debug_aranges,regular,debug"
406#define DEBUG_MACINFO_SECTION "__DWARF,__debug_macinfo,regular,debug"
407#define DEBUG_LINE_SECTION "__DWARF,__debug_line,regular,debug"
408#define DEBUG_LOC_SECTION "__DWARF,__debug_loc,regular,debug"
409#define DEBUG_PUBNAMES_SECTION "__DWARF,__debug_pubnames,regular,debug"
89708594 410#define DEBUG_PUBTYPES_SECTION "__DWARF,__debug_pubtypes,regular,debug"
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411#define DEBUG_STR_SECTION "__DWARF,__debug_str,regular,debug"
412#define DEBUG_RANGES_SECTION "__DWARF,__debug_ranges,regular,debug"
c0c19685 413#define DEBUG_MACRO_SECTION "__DWARF,__debug_macro,regular,debug"
eeab4d81 414
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415#define TARGET_WANT_DEBUG_PUB_SECTIONS true
416
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417#define TARGET_FORCE_AT_COMP_DIR true
418
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419/* When generating stabs debugging, use N_BINCL entries. */
420
421#define DBX_USE_BINCL
422
423/* There is no limit to the length of stabs strings. */
424
425#define DBX_CONTIN_LENGTH 0
426
991b6592 427/* gdb needs a null N_SO at the end of each file for scattered loading. */
ee890fe2 428
3e487b21 429#define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END
ee890fe2 430
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431/* GCC's definition of 'one_only' is the same as its definition of 'weak'. */
432#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
4746cf84 433
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434/* Mach-O supports 'weak imports', and 'weak definitions' in coalesced
435 sections. machopic_select_section ensures that weak variables go in
436 coalesced sections. Weak aliases (or any other kind of aliases) are
437 not supported. Weak symbols that aren't visible outside the .s file
438 are not supported. */
dd2e44f0
IS
439#define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS) \
440 do { \
441 if (ALIAS) \
442 { \
443 warning (0, "alias definitions not supported in Mach-O; ignored"); \
444 break; \
445 } \
446 \
447 if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL)) \
448 targetm.asm_out.globalize_label (FILE, NAME); \
449 if (DECL_EXTERNAL (DECL)) \
450 fputs ("\t.weak_reference ", FILE); \
451 else if (lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL))) \
452 break; \
453 else if (TREE_PUBLIC (DECL)) \
454 fputs ("\t.weak_definition ", FILE); \
455 else \
456 break; \
457 assemble_name (FILE, NAME); \
458 fputc ('\n', FILE); \
459 } while (0)
4746cf84 460
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461/* Darwin has the pthread routines in libSystem, which every program
462 links to, so there's no need for weak-ness for that. */
463#define GTHREAD_USE_WEAK 0
464
0524c91d 465/* The Darwin linker doesn't want coalesced symbols to appear in
4746cf84 466 a static archive's table of contents. */
0524c91d
MA
467#undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC
468#define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1
4746cf84 469
9e170098
GK
470/* On Darwin, we don't (at the time of writing) have linkonce sections
471 with names, so it's safe to make the class data not comdat. */
472#define TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT hook_bool_void_false
473
157600d0
GK
474/* For efficiency, on Darwin the RTTI information that is always
475 emitted in the standard C++ library should not be COMDAT. */
476#define TARGET_CXX_LIBRARY_RTTI_COMDAT hook_bool_void_false
477
4746cf84
MA
478/* We make exception information linkonce. */
479#undef TARGET_USES_WEAK_UNWIND_INFO
480#define TARGET_USES_WEAK_UNWIND_INFO 1
481
482/* We need to use a nonlocal label for the start of an EH frame: the
16d6f994 483 Darwin linker requires that a coalesced section start with a label.
192d0f89
GK
484 Unfortunately, it also requires that 'debug' sections don't contain
485 labels. */
4746cf84 486#undef FRAME_BEGIN_LABEL
192d0f89 487#define FRAME_BEGIN_LABEL (for_eh ? "EH_frame" : "Lframe")
4746cf84 488
7904f95f 489/* Emit a label for the FDE corresponding to DECL. EMPTY means
4746cf84
MA
490 emit a label for an empty FDE. */
491#define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label
492
083cad55
EC
493/* Emit a label to separate the exception table. */
494#define TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL darwin_emit_except_table_label
495
ee890fe2
SS
496/* Our profiling scheme doesn't LP labels and counter words. */
497
9739c90c 498#define NO_PROFILE_COUNTERS 1
ee890fe2 499
ee890fe2 500#undef INIT_SECTION_ASM_OP
d82f6b00 501#define INIT_SECTION_ASM_OP
ee890fe2
SS
502
503#undef INVOKE__main
504
2cc07db4
RH
505#define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor
506#define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor
ee890fe2 507
6ab9a3f4
SS
508/* Always prefix with an underscore. */
509
510#define USER_LABEL_PREFIX "_"
511
08a6a74b
RS
512/* A dummy symbol that will be replaced with the function base name. */
513#define MACHOPIC_FUNCTION_BASE_NAME "<pic base>"
514
ee890fe2
SS
515/* Don't output a .file directive. That is only used by the assembler for
516 error reporting. */
720b7001
ZW
517#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
518#define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
ee890fe2 519
a5fe455b
ZW
520#undef TARGET_ASM_FILE_END
521#define TARGET_ASM_FILE_END darwin_file_end
ee890fe2 522
c082f9f3
SB
523/* Because Mach-O relocations have a counter from 1 to 255 for the
524 section number they apply to, it is necessary to output all
525 normal sections before the LTO sections, to make sure that the
526 sections that may have relocations always have a section number
527 smaller than 255. */
528#undef TARGET_ASM_LTO_START
529#define TARGET_ASM_LTO_START darwin_asm_lto_start
530#undef TARGET_ASM_LTO_END
531#define TARGET_ASM_LTO_END darwin_asm_lto_end
532
dd2e44f0
IS
533#define ASM_OUTPUT_SKIP(FILE,SIZE) \
534 fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE)
2aa9948d 535
991b6592 536/* Give ObjC methods pretty symbol names. */
ee890fe2
SS
537
538#undef OBJC_GEN_METHOD_LABEL
dd2e44f0
IS
539#define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \
540 do { if (CAT_NAME) \
541 sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \
542 (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \
543 else \
544 sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \
545 (CLASS_NAME), (SEL_NAME)); \
546 } while (0)
ee890fe2 547
46a99b06 548#undef ASM_DECLARE_OBJECT_NAME
dd2e44f0
IS
549#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
550 darwin_asm_declare_object_name ((FILE), (NAME), (DECL))
46a99b06 551
ee890fe2
SS
552/* The RTTI data (e.g., __ti4name) is common and public (and static),
553 but it does need to be referenced via indirect PIC data pointers.
11abc112 554 The machopic_define_symbol calls are telling the machopic subsystem
ee890fe2
SS
555 that the name *is* defined in this module, so it doesn't need to
556 make them indirect. */
557
dd2e44f0
IS
558#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
559 do { \
560 const char *xname = NAME; \
561 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \
562 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \
563 if (! DECL_WEAK (DECL) \
564 && ((TREE_STATIC (DECL) \
565 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
566 || DECL_INITIAL (DECL))) \
567 machopic_define_symbol (DECL_RTL (DECL)); \
568 if ((TREE_STATIC (DECL) \
569 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \
570 || DECL_INITIAL (DECL)) \
571 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \
572 ASM_OUTPUT_FUNCTION_LABEL (FILE, xname, DECL); \
573 } while (0)
ee890fe2 574
e4f7c483
AS
575#undef TARGET_ASM_DECLARE_CONSTANT_NAME
576#define TARGET_ASM_DECLARE_CONSTANT_NAME darwin_asm_declare_constant_name
18f3e349 577
ee890fe2 578/* Wrap new method names in quotes so the assembler doesn't gag.
dd2e44f0 579 Make Objective-C internal symbols local and in doing this, we need
d8299715
DK
580 to accommodate the name mangling done by c++ on file scope locals. */
581
d8299715 582int darwin_label_is_anonymous_local_objc_name (const char *name);
ee890fe2
SS
583
584#undef ASM_OUTPUT_LABELREF
dd2e44f0
IS
585#define ASM_OUTPUT_LABELREF(FILE,NAME) \
586 do { \
587 const char *xname = (NAME); \
588 if (! strcmp (xname, MACHOPIC_FUNCTION_BASE_NAME)) \
589 machopic_output_function_base_name(FILE); \
590 else if (xname[0] == '&' || xname[0] == '*') \
591 { \
592 int len = strlen (xname); \
593 if (len > 6 && !strcmp ("$stub", xname + len - 5)) \
594 machopic_validate_stub_or_non_lazy_ptr (xname); \
595 else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \
596 machopic_validate_stub_or_non_lazy_ptr (xname); \
597 else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \
598 machopic_validate_stub_or_non_lazy_ptr (xname); \
599 else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \
600 machopic_validate_stub_or_non_lazy_ptr (xname); \
601 if (xname[1] != '"' && name_needs_quotes (&xname[1])) \
602 fprintf (FILE, "\"%s\"", &xname[1]); \
603 else \
604 fputs (&xname[1], FILE); \
605 } \
606 else if (xname[0] == '+' || xname[0] == '-') \
607 fprintf (FILE, "\"%s\"", xname); \
d764a8e6 608 else if (darwin_label_is_anonymous_local_objc_name (xname)) \
dd2e44f0 609 fprintf (FILE, "L%s", xname); \
dd2e44f0 610 else if (xname[0] != '"' && name_needs_quotes (xname)) \
cebb4698 611 asm_fprintf (FILE, "\"%U%s\"", xname); \
dd2e44f0
IS
612 else \
613 asm_fprintf (FILE, "%U%s", xname); \
614 } while (0)
ee890fe2 615
2aa9948d
SS
616/* Output before executable code. */
617#undef TEXT_SECTION_ASM_OP
f1a66265 618#define TEXT_SECTION_ASM_OP "\t.text"
2aa9948d
SS
619
620/* Output before writable data. */
621
622#undef DATA_SECTION_ASM_OP
f1a66265 623#define DATA_SECTION_ASM_OP "\t.data"
2aa9948d 624
ee890fe2
SS
625#undef ALIGN_ASM_OP
626#define ALIGN_ASM_OP ".align"
627
628#undef ASM_OUTPUT_ALIGN
dd2e44f0
IS
629#define ASM_OUTPUT_ALIGN(FILE,LOG) \
630 if ((LOG) != 0) \
631 fprintf (FILE, "\t%s\t%d\n", ALIGN_ASM_OP, (LOG))
ee890fe2 632
4beb5c4b
MS
633/* The maximum alignment which the object file format can support in
634 bits. For Mach-O, this is 2^15 bytes. */
ee890fe2
SS
635
636#undef MAX_OFILE_ALIGNMENT
4beb5c4b 637#define MAX_OFILE_ALIGNMENT (0x8000 * 8)
ee890fe2 638
46a99b06
IS
639#define L2_MAX_OFILE_ALIGNMENT 15
640
641/* These are the three variants that emit referenced blank space. */
dd2e44f0
IS
642#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
643 darwin_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
46a99b06
IS
644
645#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
dd2e44f0
IS
646#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
647 darwin_asm_output_aligned_decl_local \
648 ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
46a99b06
IS
649
650#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
dd2e44f0
IS
651#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
652 darwin_asm_output_aligned_decl_common \
653 ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
46a99b06 654
fee3eacd
IS
655/* The generic version, archs should over-ride where required. */
656#define MACHOPIC_NL_SYMBOL_PTR_SECTION ".non_lazy_symbol_pointer"
657
d6b5193b 658/* Declare the section variables. */
c3e23a08 659#ifndef USED_FOR_TARGET
56c779bc
GK
660enum darwin_section_enum {
661#define DEF_SECTION(NAME, FLAGS, DIRECTIVE, OBJC) NAME,
d6b5193b
RS
662#include "darwin-sections.def"
663#undef DEF_SECTION
56c779bc
GK
664 NUM_DARWIN_SECTIONS
665};
666extern GTY(()) section * darwin_sections[NUM_DARWIN_SECTIONS];
0e230dfa 667#endif
ee890fe2 668
ae46c4e0
RH
669#undef TARGET_ASM_SELECT_SECTION
670#define TARGET_ASM_SELECT_SECTION machopic_select_section
1f81953b 671
f16d3f39
JH
672#undef TARGET_ASM_FUNCTION_SECTION
673#define TARGET_ASM_FUNCTION_SECTION darwin_function_section
f1a66265 674
14d11d40 675#undef TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS
dd2e44f0
IS
676#define TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS \
677 darwin_function_switched_text_sections
14d11d40 678
b64a1b53
RH
679#undef TARGET_ASM_SELECT_RTX_SECTION
680#define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section
4746cf84
MA
681#undef TARGET_ASM_UNIQUE_SECTION
682#define TARGET_ASM_UNIQUE_SECTION darwin_unique_section
ab5c8549
JJ
683#undef TARGET_ASM_FUNCTION_RODATA_SECTION
684#define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
50b0b78a
IS
685
686#undef TARGET_ASM_TM_CLONE_TABLE_SECTION
687#define TARGET_ASM_TM_CLONE_TABLE_SECTION darwin_tm_clone_table_section
688
24c78b3a
RH
689#undef TARGET_ASM_RELOC_RW_MASK
690#define TARGET_ASM_RELOC_RW_MASK machopic_reloc_rw_mask
4746cf84 691
5eb99654 692/* Globalizing directive for a label. */
83bf7f5e 693#define GLOBAL_ASM_OP "\t.globl "
5eb99654 694#define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label
ee890fe2 695
6ce4806b
MA
696/* Emit an assembler directive to set visibility for a symbol. Used
697 to support visibility attribute and Darwin's private extern
ff482c8d 698 feature. */
6ce4806b
MA
699#undef TARGET_ASM_ASSEMBLE_VISIBILITY
700#define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility
701
005c1a13 702/* Extra attributes for Darwin. */
dd2e44f0 703#define SUBTARGET_ATTRIBUTE_TABLE \
62d784f7
KT
704 /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler, \
705 affects_type_identity } */ \
dd2e44f0 706 { "apple_kext_compatibility", 0, 0, false, true, false, \
62d784f7 707 darwin_handle_kext_attribute, false }, \
dd2e44f0 708 { "weak_import", 0, 0, true, false, false, \
62d784f7 709 darwin_handle_weak_import_attribute, false }
6ce4806b 710
ee890fe2 711#undef ASM_GENERATE_INTERNAL_LABEL
dd2e44f0
IS
712#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
713 sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM))
ee890fe2 714
8e3e233b
DP
715#undef TARGET_ASM_MARK_DECL_PRESERVED
716#define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved
717
11abc112
MM
718/* Set on a symbol with SYMBOL_FLAG_FUNCTION or
719 MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or
2e71a7a3
EC
720 variable has been defined in this translation unit.
721 When porting Mach-O to new architectures you need to make
722 sure these aren't clobbered by the backend. */
699c914a 723
11abc112
MM
724#define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP)
725#define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1)
726
699c914a
MS
727/* Set on a symbol to indicate when fix-and-continue style code
728 generation is being used and the symbol refers to a static symbol
729 that should be rebound from new instances of a translation unit to
730 the original instance of the data. */
731
732#define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2)
733
ee890fe2
SS
734/* Symbolic names for various things we might know about a symbol. */
735
736enum machopic_addr_class {
737 MACHOPIC_UNDEFINED,
738 MACHOPIC_DEFINED_DATA,
739 MACHOPIC_UNDEFINED_DATA,
740 MACHOPIC_DEFINED_FUNCTION,
741 MACHOPIC_UNDEFINED_FUNCTION
742};
743
744/* Macros defining the various PIC cases. */
745
fee3eacd
IS
746#undef MACHO_DYNAMIC_NO_PIC_P
747#define MACHO_DYNAMIC_NO_PIC_P (TARGET_MACHO_DYNAMIC_NO_PIC)
748#undef MACHOPIC_INDIRECT
ab82a49f 749#define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P)
c446d1a7 750#define MACHOPIC_JUST_INDIRECT (MACHO_DYNAMIC_NO_PIC_P)
fee3eacd 751#undef MACHOPIC_PURE
c446d1a7 752#define MACHOPIC_PURE (flag_pic && ! MACHO_DYNAMIC_NO_PIC_P)
ee890fe2 753
b069de3b 754#undef TARGET_ENCODE_SECTION_INFO
fb49053f 755#define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info
b069de3b 756#undef TARGET_STRIP_NAME_ENCODING
11abc112 757#define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
df56a27f 758
dd2e44f0
IS
759#define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \
760 do { \
761 const char *const stub_ = (STUB); \
762 char *buffer_ = (BUF); \
763 strcpy (buffer_, stub_); \
764 if (stub_[0] == '"') \
765 { \
766 strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \
767 } \
768 else \
769 { \
770 strcpy (buffer_ + (STUB_LENGTH), "_binder"); \
771 } \
772 } while (0)
773
774#define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
775 do { \
776 const char *const symbol_ = (SYMBOL); \
777 char *buffer_ = (BUF); \
778 if (name_needs_quotes (symbol_) && symbol_[0] != '"') \
779 { \
780 sprintf (buffer_, "\"%s\"", symbol_); \
781 } \
782 else \
783 { \
784 strcpy (buffer_, symbol_); \
785 } \
786 } while (0)
ee890fe2
SS
787
788/* Given a symbol name string, create the lazy pointer version
789 of the symbol name. */
790
dd2e44f0
IS
791#define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \
792 do { \
793 const char *symbol_ = (SYMBOL); \
794 char *buffer_ = (BUF); \
795 if (symbol_[0] == '"') \
796 { \
797 strcpy (buffer_, "\"L"); \
798 strcpy (buffer_ + 2, symbol_ + 1); \
799 strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \
800 } \
801 else if (name_needs_quotes (symbol_)) \
802 { \
803 strcpy (buffer_, "\"L"); \
804 strcpy (buffer_ + 2, symbol_); \
805 strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \
806 } \
807 else \
808 { \
809 strcpy (buffer_, "L"); \
810 strcpy (buffer_ + 1, symbol_); \
811 strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \
812 } \
813 } while (0)
ee890fe2 814
4746cf84 815#define EH_FRAME_SECTION_NAME "__TEXT"
92b9a671 816#define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support"
4746cf84 817
f1a66265
GK
818/* Java runtime class list. */
819#define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip"
820
b069de3b 821#undef ASM_PREFERRED_EH_DATA_FORMAT
dd2e44f0
IS
822#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
823 (((CODE) == 2 && (GLOBAL) == 1) \
824 ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \
825 ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr)
7606e68f 826
dd2e44f0
IS
827#define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \
828 darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2)
7606e68f 829
dd2e44f0
IS
830#define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,BASE) \
831 darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, BASE)
192d0f89 832
dd2e44f0
IS
833#define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \
834 if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \
835 darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \
836 goto DONE; \
837 }
4746cf84 838
5a25e0c5
DJ
839/* Experimentally, putting jump tables in text is faster on SPEC.
840 Also this is needed for correctness for coalesced functions. */
841
842#ifndef JUMP_TABLES_IN_TEXT_SECTION
31492595 843#define JUMP_TABLES_IN_TEXT_SECTION 1
5a25e0c5 844#endif
4746cf84 845
7606e68f 846#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
abe72dd8 847
d6b5193b 848#define TARGET_ASM_INIT_SECTIONS darwin_init_sections
4746cf84
MA
849#undef TARGET_ASM_NAMED_SECTION
850#define TARGET_ASM_NAMED_SECTION darwin_asm_named_section
4746cf84 851
dd2e44f0
IS
852#define DARWIN_REGISTER_TARGET_PRAGMAS() \
853 do { \
854 if (!flag_preprocess_only) \
855 cpp_register_pragma (parse_in, NULL, "mark", \
856 darwin_pragma_ignore, false); \
857 c_register_pragma (0, "options", darwin_pragma_options); \
858 c_register_pragma (0, "segment", darwin_pragma_ignore); \
859 c_register_pragma (0, "unused", darwin_pragma_unused); \
860 c_register_pragma (0, "ms_struct", darwin_pragma_ms_struct); \
861 } while (0)
2aa9948d
SS
862
863#undef ASM_APP_ON
864#define ASM_APP_ON ""
865#undef ASM_APP_OFF
866#define ASM_APP_OFF ""
213c4a8a 867
3dd53121
AP
868void darwin_register_frameworks (const char *, const char *, int);
869void darwin_register_objc_includes (const char *, const char *, int);
870#define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes
94d1613b
MS
871#define TARGET_EXTRA_INCLUDES darwin_register_frameworks
872
873void add_framework_path (char *);
874#define TARGET_OPTF add_framework_path
875
4969c0d8 876#define TARGET_POSIX_IO
8db4d7a1 877
ed5b9f96 878/* All new versions of Darwin have C99 functions. */
23f99493 879
68ece23d 880#define TARGET_C99_FUNCTIONS 1
9b2d02a0 881
2baeaa1b
MS
882#define WINT_TYPE "int"
883
953ff289
DN
884/* Every program on darwin links against libSystem which contains the pthread
885 routines, so there's no need to explicitly call out when doing threaded
886 work. */
23f99493 887
953ff289
DN
888#undef GOMP_SELF_SPECS
889#define GOMP_SELF_SPECS ""
255a9a1b
EB
890#undef GTM_SELF_SPECS
891#define GTM_SELF_SPECS ""
953ff289 892
dd2e44f0 893/* Darwin disables section anchors by default.
46a99b06 894 They should be enabled per arch where support exists in that arch. */
23f99493 895#define TARGET_ASM_OUTPUT_ANCHOR NULL
46a99b06 896#define DARWIN_SECTION_ANCHORS 0
23f99493 897
10e48e39 898#define HAVE_ENABLE_EXECUTE_STACK
c6c621d4 899
f475fd3c
MS
900/* For Apple KEXTs, we make the constructors return this to match gcc
901 2.95. */
902#define TARGET_CXX_CDTOR_RETURNS_THIS (darwin_kextabi_p)
f475fd3c
MS
903#define TARGET_KEXTABI flag_apple_kext
904
26705988 905/* We have target-specific builtins. */
1cd130b0 906#define SUBTARGET_FOLD_BUILTIN darwin_fold_builtin
26705988 907
91ebb981
IS
908#define TARGET_N_FORMAT_TYPES 1
909#define TARGET_FORMAT_TYPES darwin_additional_format_types
910
927b679c
IS
911#ifndef USED_FOR_TARGET
912extern void darwin_driver_init (unsigned int *,struct cl_decoded_option **);
dd2e44f0
IS
913#define GCC_DRIVER_HOST_INITIALIZATION \
914 darwin_driver_init (&decoded_options_count, &decoded_options)
927b679c 915#endif
e46b55d0 916
8cd01fe6
JDA
917/* The Apple assembler and linker do not support constructor priorities. */
918#undef SUPPORTS_INIT_PRIORITY
919#define SUPPORTS_INIT_PRIORITY 0
920
558c362a
IS
921/* When building cross-compilers (and native crosses) we shall default to
922 providing an osx-version-min of this unless overridden by the User. */
923#define DEF_MIN_OSX_VERSION "10.4"
924
213c4a8a 925#endif /* CONFIG_DARWIN_H */
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