Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/darwin.h @ 67:f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
| author | nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Mar 2011 17:18:12 +0900 |
| parents | b7f97abdc517 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Target definitions for Darwin (Mac OS X) systems. |
| 2 Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004, | |
|
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3 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| 0 | 4 Free Software Foundation, Inc. |
| 5 Contributed by Apple Computer Inc. | |
| 6 | |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify | |
| 10 it under the terms of the GNU General Public License as published by | |
| 11 the Free Software Foundation; either version 3, or (at your option) | |
| 12 any later version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, | |
| 15 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 GNU General Public License for more details. | |
| 18 | |
| 19 Under Section 7 of GPL version 3, you are granted additional | |
| 20 permissions described in the GCC Runtime Library Exception, version | |
| 21 3.1, as published by the Free Software Foundation. | |
| 22 | |
| 23 You should have received a copy of the GNU General Public License and | |
| 24 a copy of the GCC Runtime Library Exception along with this program; | |
| 25 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 26 <http://www.gnu.org/licenses/>. */ | |
| 27 | |
| 28 #ifndef CONFIG_DARWIN_H | |
| 29 #define CONFIG_DARWIN_H | |
| 30 | |
| 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 | |
| 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 |
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46 #define DARWIN_PPC 0 |
| 0 | 47 |
| 48 /* Don't assume anything about the header files. */ | |
| 49 #define NO_IMPLICIT_EXTERN_C | |
| 50 | |
| 51 /* Suppress g++ attempt to link in the math library automatically. */ | |
| 52 #define MATH_LIBRARY "" | |
| 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" |
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81 #define INT16_TYPE "short int" |
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82 #define INT32_TYPE "int" |
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83 #define INT64_TYPE "long long int" |
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84 #define UINT8_TYPE "unsigned char" |
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85 #define UINT16_TYPE "short unsigned int" |
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86 #define UINT32_TYPE "unsigned int" |
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87 #define UINT64_TYPE "long long unsigned int" |
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88 |
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89 #define INT_LEAST8_TYPE "signed char" |
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90 #define INT_LEAST16_TYPE "short int" |
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91 #define INT_LEAST32_TYPE "int" |
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92 #define INT_LEAST64_TYPE "long long int" |
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93 #define UINT_LEAST8_TYPE "unsigned char" |
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94 #define UINT_LEAST16_TYPE "short unsigned int" |
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95 #define UINT_LEAST32_TYPE "unsigned int" |
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96 #define UINT_LEAST64_TYPE "long long unsigned int" |
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97 |
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98 #define INT_FAST8_TYPE "signed char" |
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99 #define INT_FAST16_TYPE "short int" |
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100 #define INT_FAST32_TYPE "int" |
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101 #define INT_FAST64_TYPE "long long int" |
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102 #define UINT_FAST8_TYPE "unsigned char" |
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103 #define UINT_FAST16_TYPE "short unsigned int" |
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104 #define UINT_FAST32_TYPE "unsigned int" |
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105 #define UINT_FAST64_TYPE "long long unsigned int" |
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106 |
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107 #define INTPTR_TYPE "long int" |
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108 #define UINTPTR_TYPE "long unsigned int" |
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109 |
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110 #define SIG_ATOMIC_TYPE "int" |
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111 |
| 0 | 112 /* Default to using the NeXT-style runtime, since that's what is |
| 113 pre-installed on Darwin systems. */ | |
| 114 | |
| 115 #define NEXT_OBJC_RUNTIME | |
| 116 | |
| 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 | |
| 123 /* True if pragma ms_struct is in effect. */ | |
| 124 extern GTY(()) int darwin_ms_struct; | |
| 125 | |
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126 #define DRIVER_SELF_SPECS \ |
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127 "%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull", \ |
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128 "%{gused:-g -feliminate-unused-debug-symbols} %<gused", \ |
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129 "%{fapple-kext|mkernel:-static}", \ |
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130 "%{shared:-Zdynamiclib} %<shared" |
| 0 | 131 |
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132 #define DARWIN_CC1_SPEC \ |
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133 "%{findirect-virtual-calls: -fapple-kext} %<findirect-virtual-calls " \ |
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134 "%{fterminated-vtables: -fapple-kext} %<fterminated-vtables " \ |
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135 "%<filelist* %<framework*" |
| 0 | 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 /* Unless set, force ABI=2 for NeXT and m64, 0 otherwise. */ \ |
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144 if (!global_options_set.x_flag_objc_abi) \ |
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145 global_options.x_flag_objc_abi \ |
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146 = (flag_next_runtime && TARGET_64BIT) ? 2 : 0; \ |
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147 /* Objective-C family ABI 2 is only valid for next/m64 at present. */ \ |
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148 if (global_options_set.x_flag_objc_abi && flag_next_runtime) \ |
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149 if (TARGET_64BIT && global_options.x_flag_objc_abi < 2) \ |
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150 error_at (UNKNOWN_LOCATION, "%<-fobjc-abi-version%> >= 2 is only" \ |
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151 " supported on %<-m64%> targets for" \ |
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152 " %<-fnext-runtime%>"); \ |
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153 /* Sort out ObjC exceptions: If the runtime is NeXT we default to \ |
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154 sjlj for m32 only. */ \ |
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155 if (!global_options_set.x_flag_objc_sjlj_exceptions) \ |
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156 global_options.x_flag_objc_sjlj_exceptions = \ |
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157 flag_next_runtime && !TARGET_64BIT; \ |
| 0 | 158 if (flag_mkernel || flag_apple_kext) \ |
| 159 { \ | |
| 160 if (flag_use_cxa_atexit == 2) \ | |
| 161 flag_use_cxa_atexit = 0; \ | |
| 162 /* kexts should always be built without the coalesced sections \ | |
| 163 because the kernel loader doesn't grok such sections. */ \ | |
| 164 flag_weak = 0; \ | |
| 165 /* No RTTI in kexts. */ \ | |
| 166 flag_rtti = 0; \ | |
| 167 } \ | |
| 168 } while (0) | |
| 169 | |
| 170 /* Machine dependent cpp options. Don't add more options here, add | |
| 171 them to darwin_cpp_builtins in darwin-c.c. */ | |
| 172 | |
| 173 #undef CPP_SPEC | |
| 174 #define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}" \ | |
| 175 " %{pthread:-D_REENTRANT}" | |
| 176 | |
| 177 /* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus | |
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178 precomp, libtool, and fat build additions. |
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179 |
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180 In general, random Darwin linker flags should go into LINK_SPEC |
| 0 | 181 instead of LINK_COMMAND_SPEC. The command spec is better for |
| 182 specifying the handling of options understood by generic Unix | |
| 183 linkers, and for positional arguments like libraries. */ | |
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184 |
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185 #define LINK_COMMAND_SPEC_A \ |
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186 "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ |
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187 %(linker) \ |
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188 %{flto*:%<fcompare-debug*} \ |
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189 %{flto*} \ |
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190 %l %X %{s} %{t} %{Z} %{u*} \ |
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191 %{e*} %{r} \ |
| 0 | 192 %{o*}%{!o:-o a.out} \ |
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193 %{!nostdlib:%{!nostartfiles:%S}} \ |
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194 %{L*} %(link_libgcc) %o %{fprofile-arcs|fprofile-generate*|coverage:-lgcov} \ |
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195 %{fopenmp|ftree-parallelize-loops=*: \ |
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196 %{static|static-libgcc|static-libstdc++|static-libgfortran: libgomp.a%s; : -lgomp } } \ |
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197 %{!nostdlib:%{!nodefaultlibs:\ |
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198 %(link_ssp) %(link_gcc_c_sequence)\ |
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199 }}\ |
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200 %{!nostdlib:%{!nostartfiles:%E}} %{T*} %{F*} }}}}}}}" |
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201 |
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202 #define DSYMUTIL "\ndsymutil" |
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203 |
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204 #define DSYMUTIL_SPEC \ |
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205 "%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\ |
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206 %{v} \ |
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207 %{gdwarf-2:%{!gstabs*:%{!g0: -idsym}}}\ |
| 0 | 208 %{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \ |
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209 %{gdwarf-2:%{!gstabs*:%{!g0: -dsym}}}}}}}}}}}" |
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210 |
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211 #define LINK_COMMAND_SPEC LINK_COMMAND_SPEC_A DSYMUTIL_SPEC |
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212 |
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213 /* Tell collect2 to run dsymutil for us as necessary. */ |
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214 #define COLLECT_RUN_DSYMUTIL 1 |
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215 |
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216 /* We only want one instance of %G, since libSystem (Darwin's -lc) does not depend |
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217 on libgcc. */ |
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218 #undef LINK_GCC_C_SEQUENCE_SPEC |
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219 #define LINK_GCC_C_SEQUENCE_SPEC "%G %L" |
| 0 | 220 |
| 221 #ifdef TARGET_SYSTEM_ROOT | |
| 222 #define LINK_SYSROOT_SPEC \ | |
| 223 "%{isysroot*:-syslibroot %*;:-syslibroot " TARGET_SYSTEM_ROOT "}" | |
| 224 #else | |
| 225 #define LINK_SYSROOT_SPEC "%{isysroot*:-syslibroot %*}" | |
| 226 #endif | |
| 227 | |
| 228 /* Please keep the random linker options in alphabetical order (modulo | |
| 229 'Z' and 'no' prefixes). Note that options taking arguments may appear | |
| 230 multiple times on a command line with different arguments each time, | |
| 231 so put a * after their names so all of them get passed. */ | |
| 232 #define LINK_SPEC \ | |
| 233 "%{static}%{!static:-dynamic} \ | |
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234 %:remove-outfile(-ldl) \ |
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235 %:remove-outfile(-lm) \ |
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236 %:remove-outfile(-lpthread) \ |
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237 %{fgnu-runtime: %{static|static-libgcc: \ |
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238 %:replace-outfile(-lobjc libobjc-gnu.a%s); \ |
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239 :%:replace-outfile(-lobjc -lobjc-gnu ) } }\ |
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240 %{static|static-libgcc|static-libgfortran:%:replace-outfile(-lgfortran libgfortran.a%s)}\ |
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241 %{static|static-libgcc|static-libstdc++|static-libgfortran:%:replace-outfile(-lgomp libgomp.a%s)}\ |
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242 %{static|static-libgcc|static-libstdc++:%:replace-outfile(-lstdc++ libstdc++.a%s)}\ |
| 0 | 243 %{!Zdynamiclib: \ |
| 244 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch) -force_cpusubtype_ALL} \ | |
| 245 %{!Zforce_cpusubtype_ALL:-arch %(darwin_subarch)} \ | |
| 246 %{Zbundle:-bundle} \ | |
| 247 %{Zbundle_loader*:-bundle_loader %*} \ | |
| 248 %{client_name*} \ | |
| 249 %{compatibility_version*:%e-compatibility_version only allowed with -dynamiclib\ | |
| 250 } \ | |
| 251 %{current_version*:%e-current_version only allowed with -dynamiclib} \ | |
| 252 %{Zforce_flat_namespace:-force_flat_namespace} \ | |
| 253 %{Zinstall_name*:%e-install_name only allowed with -dynamiclib} \ | |
| 254 %{keep_private_externs} \ | |
| 255 %{private_bundle} \ | |
| 256 } \ | |
| 257 %{Zdynamiclib: -dylib \ | |
| 258 %{Zbundle:%e-bundle not allowed with -dynamiclib} \ | |
| 259 %{Zbundle_loader*:%e-bundle_loader not allowed with -dynamiclib} \ | |
| 260 %{client_name*:%e-client_name not allowed with -dynamiclib} \ | |
| 261 %{compatibility_version*:-dylib_compatibility_version %*} \ | |
| 262 %{current_version*:-dylib_current_version %*} \ | |
| 263 %{Zforce_cpusubtype_ALL:-arch %(darwin_arch)} \ | |
| 264 %{!Zforce_cpusubtype_ALL: -arch %(darwin_subarch)} \ | |
| 265 %{Zforce_flat_namespace:%e-force_flat_namespace not allowed with -dynamiclib} \ | |
| 266 %{Zinstall_name*:-dylib_install_name %*} \ | |
| 267 %{keep_private_externs:%e-keep_private_externs not allowed with -dynamiclib} \ | |
| 268 %{private_bundle:%e-private_bundle not allowed with -dynamiclib} \ | |
| 269 } \ | |
| 270 %{Zall_load:-all_load} \ | |
| 271 %{Zallowable_client*:-allowable_client %*} \ | |
| 272 %{Zbind_at_load:-bind_at_load} \ | |
| 273 %{Zarch_errors_fatal:-arch_errors_fatal} \ | |
| 274 %{Zdead_strip:-dead_strip} \ | |
| 275 %{Zno_dead_strip_inits_and_terms:-no_dead_strip_inits_and_terms} \ | |
| 276 %{Zdylib_file*:-dylib_file %*} \ | |
| 277 %{Zdynamic:-dynamic}\ | |
| 278 %{Zexported_symbols_list*:-exported_symbols_list %*} \ | |
| 279 %{Zflat_namespace:-flat_namespace} \ | |
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280 %{headerpad_max_install_names} \ |
| 0 | 281 %{Zimage_base*:-image_base %*} \ |
| 282 %{Zinit*:-init %*} \ | |
| 283 %{!mmacosx-version-min=*:-macosx_version_min %(darwin_minversion)} \ | |
| 284 %{mmacosx-version-min=*:-macosx_version_min %*} \ | |
| 285 %{nomultidefs} \ | |
| 286 %{Zmulti_module:-multi_module} %{Zsingle_module:-single_module} \ | |
| 287 %{Zmultiply_defined*:-multiply_defined %*} \ | |
| 288 %{!Zmultiply_defined*:%{shared-libgcc: \ | |
| 289 %:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \ | |
| 290 %:version-compare(< 10.5 mmacosx-version-min= suppress)}} \ | |
| 291 %{Zmultiplydefinedunused*:-multiply_defined_unused %*} \ | |
| 292 %{fpie:-pie} \ | |
| 293 %{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \ | |
| 294 %{read_only_relocs} \ | |
| 295 %{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \ | |
| 296 %{Zsegaddr*:-segaddr %*} \ | |
| 297 %{Zsegs_read_only_addr*:-segs_read_only_addr %*} \ | |
| 298 %{Zsegs_read_write_addr*:-segs_read_write_addr %*} \ | |
| 299 %{Zseg_addr_table*: -seg_addr_table %*} \ | |
| 300 %{Zfn_seg_addr_table_filename*:-seg_addr_table_filename %*} \ | |
| 301 %{sub_library*} %{sub_umbrella*} \ | |
| 302 " LINK_SYSROOT_SPEC " \ | |
| 303 %{twolevel_namespace} %{twolevel_namespace_hints} \ | |
| 304 %{Zumbrella*: -umbrella %*} \ | |
| 305 %{undefined*} \ | |
| 306 %{Zunexported_symbols_list*:-unexported_symbols_list %*} \ | |
| 307 %{Zweak_reference_mismatches*:-weak_reference_mismatches %*} \ | |
| 308 %{!Zweak_reference_mismatches*:-weak_reference_mismatches non-weak} \ | |
| 309 %{X} \ | |
| 310 %{y*} \ | |
| 311 %{w} \ | |
| 312 %{pagezero_size*} %{segs_read_*} %{seglinkedit} %{noseglinkedit} \ | |
| 313 %{sectalign*} %{sectobjectsymbols*} %{segcreate*} %{whyload} \ | |
| 314 %{whatsloaded} %{dylinker_install_name*} \ | |
| 315 %{dylinker} %{Mach} " | |
| 316 | |
| 317 | |
| 318 /* Machine dependent libraries. */ | |
| 319 | |
| 320 #define LIB_SPEC "%{!static:-lSystem}" | |
| 321 | |
| 322 /* Support -mmacosx-version-min by supplying different (stub) libgcc_s.dylib | |
| 323 libraries to link against, and by not linking against libgcc_s on | |
| 324 earlier-than-10.3.9. | |
| 325 | |
| 326 Note that by default, -lgcc_eh is not linked against! This is | |
| 327 because in a future version of Darwin the EH frame information may | |
| 328 be in a new format, or the fallback routine might be changed; if | |
| 329 you want to explicitly link against the static version of those | |
| 330 routines, because you know you don't need to unwind through system | |
| 331 libraries, you need to explicitly say -static-libgcc. | |
| 332 | |
| 333 If it is linked against, it has to be before -lgcc, because it may | |
| 334 need symbols from -lgcc. */ | |
| 335 #undef REAL_LIBGCC_SPEC | |
| 336 #define REAL_LIBGCC_SPEC \ | |
| 337 "%{static-libgcc|static: -lgcc_eh -lgcc; \ | |
| 338 shared-libgcc|fexceptions|fgnu-runtime: \ | |
| 339 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \ | |
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340 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ |
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341 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ |
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342 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ |
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343 -lgcc ; \ |
| 0 | 344 :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \ |
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345 %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ |
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346 %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ |
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347 %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ |
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348 -lgcc }" |
| 0 | 349 |
| 350 /* We specify crt0.o as -lcrt0.o so that ld will search the library path. | |
| 351 | |
| 352 crt3.o provides __cxa_atexit on systems that don't have it. Since | |
| 353 it's only used with C++, which requires passing -shared-libgcc, key | |
| 354 off that to avoid unnecessarily adding a destructor to every | |
| 355 powerpc program built. */ | |
| 356 | |
| 357 #undef STARTFILE_SPEC | |
| 358 #define STARTFILE_SPEC \ | |
| 359 "%{Zdynamiclib: %(darwin_dylib1) } \ | |
| 360 %{!Zdynamiclib:%{Zbundle:%{!static:-lbundle1.o}} \ | |
| 361 %{!Zbundle:%{pg:%{static:-lgcrt0.o} \ | |
| 362 %{!static:%{object:-lgcrt0.o} \ | |
| 363 %{!object:%{preload:-lgcrt0.o} \ | |
| 364 %{!preload:-lgcrt1.o %(darwin_crt2)}}}} \ | |
| 365 %{!pg:%{static:-lcrt0.o} \ | |
| 366 %{!static:%{object:-lcrt0.o} \ | |
| 367 %{!object:%{preload:-lcrt0.o} \ | |
| 368 %{!preload: %(darwin_crt1) \ | |
| 369 %(darwin_crt2)}}}}}} \ | |
| 370 %{shared-libgcc:%:version-compare(< 10.5 mmacosx-version-min= crt3.o%s)}" | |
| 371 | |
| 372 /* The native Darwin linker doesn't necessarily place files in the order | |
| 373 that they're specified on the link line. Thus, it is pointless | |
| 374 to put anything in ENDFILE_SPEC. */ | |
| 375 /* #define ENDFILE_SPEC "" */ | |
| 376 | |
| 377 #define DARWIN_EXTRA_SPECS \ | |
| 378 { "darwin_crt1", DARWIN_CRT1_SPEC }, \ | |
| 379 { "darwin_dylib1", DARWIN_DYLIB1_SPEC }, \ | |
| 380 { "darwin_minversion", DARWIN_MINVERSION_SPEC }, | |
| 381 | |
| 382 #define DARWIN_DYLIB1_SPEC \ | |
| 383 "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \ | |
| 384 %:version-compare(>= 10.5 mmacosx-version-min= -ldylib1.10.5.o)" | |
| 385 | |
| 386 #define DARWIN_CRT1_SPEC \ | |
| 387 "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \ | |
| 388 %:version-compare(>= 10.5 mmacosx-version-min= -lcrt1.10.5.o)" | |
| 389 | |
| 390 /* Default Darwin ASM_SPEC, very simple. */ | |
| 391 #define ASM_SPEC "-arch %(darwin_arch) \ | |
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392 %{Zforce_cpusubtype_ALL:-force_cpusubtype_ALL} \ |
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393 %{static}" |
| 0 | 394 |
| 395 /* We still allow output of STABS. */ | |
| 396 | |
| 397 #define DBX_DEBUGGING_INFO 1 | |
| 398 | |
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399 #define DWARF2_DEBUGGING_INFO 1 |
| 0 | 400 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
| 401 | |
| 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" | |
| 410 #define DEBUG_PUBTYPES_SECTION "__DWARF,__debug_pubtypes,regular,debug" | |
| 411 #define DEBUG_STR_SECTION "__DWARF,__debug_str,regular,debug" | |
| 412 #define DEBUG_RANGES_SECTION "__DWARF,__debug_ranges,regular,debug" | |
| 413 | |
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414 #define TARGET_WANT_DEBUG_PUB_SECTIONS true |
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415 |
| 0 | 416 /* When generating stabs debugging, use N_BINCL entries. */ |
| 417 | |
| 418 #define DBX_USE_BINCL | |
| 419 | |
| 420 /* There is no limit to the length of stabs strings. */ | |
| 421 | |
| 422 #define DBX_CONTIN_LENGTH 0 | |
| 423 | |
| 424 /* gdb needs a null N_SO at the end of each file for scattered loading. */ | |
| 425 | |
| 426 #define DBX_OUTPUT_NULL_N_SO_AT_MAIN_SOURCE_FILE_END | |
| 427 | |
| 428 /* GCC's definition of 'one_only' is the same as its definition of 'weak'. */ | |
| 429 #define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) | |
| 430 | |
| 431 /* Mach-O supports 'weak imports', and 'weak definitions' in coalesced | |
| 432 sections. machopic_select_section ensures that weak variables go in | |
| 433 coalesced sections. Weak aliases (or any other kind of aliases) are | |
| 434 not supported. Weak symbols that aren't visible outside the .s file | |
| 435 are not supported. */ | |
| 436 #define ASM_WEAKEN_DECL(FILE, DECL, NAME, ALIAS) \ | |
| 437 do { \ | |
| 438 if (ALIAS) \ | |
| 439 { \ | |
| 440 warning (0, "alias definitions not supported in Mach-O; ignored"); \ | |
| 441 break; \ | |
| 442 } \ | |
| 443 \ | |
| 444 if (! DECL_EXTERNAL (DECL) && TREE_PUBLIC (DECL)) \ | |
| 445 targetm.asm_out.globalize_label (FILE, NAME); \ | |
| 446 if (DECL_EXTERNAL (DECL)) \ | |
| 447 fputs ("\t.weak_reference ", FILE); \ | |
|
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448 else if (lookup_attribute ("weak_import", DECL_ATTRIBUTES (DECL))) \ |
| 0 | 449 break; \ |
| 450 else if (TREE_PUBLIC (DECL)) \ | |
| 451 fputs ("\t.weak_definition ", FILE); \ | |
| 452 else \ | |
| 453 break; \ | |
| 454 assemble_name (FILE, NAME); \ | |
| 455 fputc ('\n', FILE); \ | |
| 456 } while (0) | |
| 457 | |
| 458 /* Darwin has the pthread routines in libSystem, which every program | |
| 459 links to, so there's no need for weak-ness for that. */ | |
| 460 #define GTHREAD_USE_WEAK 0 | |
| 461 | |
| 462 /* The Darwin linker imposes two limitations on common symbols: they | |
| 463 can't have hidden visibility, and they can't appear in dylibs. As | |
| 464 a consequence, we should never use common symbols to represent | |
| 465 vague linkage. */ | |
| 466 #undef USE_COMMON_FOR_ONE_ONLY | |
| 467 #define USE_COMMON_FOR_ONE_ONLY 0 | |
| 468 | |
| 469 /* The Darwin linker doesn't want coalesced symbols to appear in | |
| 470 a static archive's table of contents. */ | |
| 471 #undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC | |
| 472 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 1 | |
| 473 | |
| 474 /* On Darwin, we don't (at the time of writing) have linkonce sections | |
| 475 with names, so it's safe to make the class data not comdat. */ | |
| 476 #define TARGET_CXX_CLASS_DATA_ALWAYS_COMDAT hook_bool_void_false | |
| 477 | |
| 478 /* For efficiency, on Darwin the RTTI information that is always | |
| 479 emitted in the standard C++ library should not be COMDAT. */ | |
| 480 #define TARGET_CXX_LIBRARY_RTTI_COMDAT hook_bool_void_false | |
| 481 | |
| 482 /* We make exception information linkonce. */ | |
| 483 #undef TARGET_USES_WEAK_UNWIND_INFO | |
| 484 #define TARGET_USES_WEAK_UNWIND_INFO 1 | |
| 485 | |
| 486 /* We need to use a nonlocal label for the start of an EH frame: the | |
| 487 Darwin linker requires that a coalesced section start with a label. | |
| 488 Unfortunately, it also requires that 'debug' sections don't contain | |
| 489 labels. */ | |
| 490 #undef FRAME_BEGIN_LABEL | |
| 491 #define FRAME_BEGIN_LABEL (for_eh ? "EH_frame" : "Lframe") | |
| 492 | |
| 493 /* Emit a label for the FDE corresponding to DECL. EMPTY means | |
| 494 emit a label for an empty FDE. */ | |
| 495 #define TARGET_ASM_EMIT_UNWIND_LABEL darwin_emit_unwind_label | |
| 496 | |
| 497 /* Emit a label to separate the exception table. */ | |
| 498 #define TARGET_ASM_EMIT_EXCEPT_TABLE_LABEL darwin_emit_except_table_label | |
| 499 | |
| 500 /* Our profiling scheme doesn't LP labels and counter words. */ | |
| 501 | |
| 502 #define NO_PROFILE_COUNTERS 1 | |
| 503 | |
| 504 #undef INIT_SECTION_ASM_OP | |
| 505 #define INIT_SECTION_ASM_OP | |
| 506 | |
| 507 #undef INVOKE__main | |
| 508 | |
| 509 #define TARGET_ASM_CONSTRUCTOR machopic_asm_out_constructor | |
| 510 #define TARGET_ASM_DESTRUCTOR machopic_asm_out_destructor | |
| 511 | |
| 512 /* Always prefix with an underscore. */ | |
| 513 | |
| 514 #define USER_LABEL_PREFIX "_" | |
| 515 | |
| 516 /* A dummy symbol that will be replaced with the function base name. */ | |
| 517 #define MACHOPIC_FUNCTION_BASE_NAME "<pic base>" | |
| 518 | |
| 519 /* Don't output a .file directive. That is only used by the assembler for | |
| 520 error reporting. */ | |
| 521 #undef TARGET_ASM_FILE_START_FILE_DIRECTIVE | |
| 522 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false | |
| 523 | |
| 524 #undef TARGET_ASM_FILE_END | |
| 525 #define TARGET_ASM_FILE_END darwin_file_end | |
| 526 | |
|
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527 /* Because Mach-O relocations have a counter from 1 to 255 for the |
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528 section number they apply to, it is necessary to output all |
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529 normal sections before the LTO sections, to make sure that the |
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530 sections that may have relocations always have a section number |
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531 smaller than 255. */ |
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532 #undef TARGET_ASM_LTO_START |
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533 #define TARGET_ASM_LTO_START darwin_asm_lto_start |
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534 #undef TARGET_ASM_LTO_END |
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535 #define TARGET_ASM_LTO_END darwin_asm_lto_end |
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536 |
| 0 | 537 #define ASM_OUTPUT_SKIP(FILE,SIZE) \ |
| 538 fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", SIZE) | |
| 539 | |
| 540 /* Give ObjC methods pretty symbol names. */ | |
| 541 | |
| 542 #undef OBJC_GEN_METHOD_LABEL | |
| 543 #define OBJC_GEN_METHOD_LABEL(BUF,IS_INST,CLASS_NAME,CAT_NAME,SEL_NAME,NUM) \ | |
| 544 do { if (CAT_NAME) \ | |
| 545 sprintf (BUF, "%c[%s(%s) %s]", (IS_INST) ? '-' : '+', \ | |
| 546 (CLASS_NAME), (CAT_NAME), (SEL_NAME)); \ | |
| 547 else \ | |
| 548 sprintf (BUF, "%c[%s %s]", (IS_INST) ? '-' : '+', \ | |
| 549 (CLASS_NAME), (SEL_NAME)); \ | |
| 550 } while (0) | |
| 551 | |
|
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552 #undef ASM_DECLARE_OBJECT_NAME |
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553 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ |
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554 darwin_asm_declare_object_name ((FILE), (NAME), (DECL)) |
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555 |
| 0 | 556 /* The RTTI data (e.g., __ti4name) is common and public (and static), |
| 557 but it does need to be referenced via indirect PIC data pointers. | |
| 558 The machopic_define_symbol calls are telling the machopic subsystem | |
| 559 that the name *is* defined in this module, so it doesn't need to | |
| 560 make them indirect. */ | |
| 561 | |
| 562 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ | |
| 563 do { \ | |
| 564 const char *xname = NAME; \ | |
| 565 if (GET_CODE (XEXP (DECL_RTL (DECL), 0)) != SYMBOL_REF) \ | |
| 566 xname = IDENTIFIER_POINTER (DECL_NAME (DECL)); \ | |
| 567 if (! DECL_WEAK (DECL) \ | |
| 568 && ((TREE_STATIC (DECL) \ | |
| 569 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \ | |
| 570 || DECL_INITIAL (DECL))) \ | |
| 571 machopic_define_symbol (DECL_RTL (DECL)); \ | |
| 572 if ((TREE_STATIC (DECL) \ | |
| 573 && (!DECL_COMMON (DECL) || !TREE_PUBLIC (DECL))) \ | |
| 574 || DECL_INITIAL (DECL)) \ | |
| 575 (* targetm.encode_section_info) (DECL, DECL_RTL (DECL), false); \ | |
|
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576 ASM_OUTPUT_FUNCTION_LABEL (FILE, xname, DECL); \ |
| 0 | 577 } while (0) |
| 578 | |
|
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579 #undef TARGET_ASM_DECLARE_CONSTANT_NAME |
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580 #define TARGET_ASM_DECLARE_CONSTANT_NAME darwin_asm_declare_constant_name |
| 0 | 581 |
| 582 /* Wrap new method names in quotes so the assembler doesn't gag. | |
|
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583 Make Objective-C internal symbols local and in doing this, we need |
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584 to accommodate the name mangling done by c++ on file scope locals. */ |
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585 |
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586 int darwin_label_is_anonymous_local_objc_name (const char *name); |
| 0 | 587 |
| 588 #undef ASM_OUTPUT_LABELREF | |
| 589 #define ASM_OUTPUT_LABELREF(FILE,NAME) \ | |
| 590 do { \ | |
| 591 const char *xname = (NAME); \ | |
| 592 if (! strcmp (xname, MACHOPIC_FUNCTION_BASE_NAME)) \ | |
| 593 machopic_output_function_base_name(FILE); \ | |
| 594 else if (xname[0] == '&' || xname[0] == '*') \ | |
| 595 { \ | |
| 596 int len = strlen (xname); \ | |
| 597 if (len > 6 && !strcmp ("$stub", xname + len - 5)) \ | |
| 598 machopic_validate_stub_or_non_lazy_ptr (xname); \ | |
| 599 else if (len > 7 && !strcmp ("$stub\"", xname + len - 6)) \ | |
| 600 machopic_validate_stub_or_non_lazy_ptr (xname); \ | |
| 601 else if (len > 14 && !strcmp ("$non_lazy_ptr", xname + len - 13)) \ | |
| 602 machopic_validate_stub_or_non_lazy_ptr (xname); \ | |
| 603 else if (len > 15 && !strcmp ("$non_lazy_ptr\"", xname + len - 14)) \ | |
| 604 machopic_validate_stub_or_non_lazy_ptr (xname); \ | |
| 605 if (xname[1] != '"' && name_needs_quotes (&xname[1])) \ | |
| 606 fprintf (FILE, "\"%s\"", &xname[1]); \ | |
| 607 else \ | |
| 608 fputs (&xname[1], FILE); \ | |
| 609 } \ | |
| 610 else if (xname[0] == '+' || xname[0] == '-') \ | |
| 611 fprintf (FILE, "\"%s\"", xname); \ | |
|
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612 else if (darwin_label_is_anonymous_local_objc_name (xname)) \ |
| 0 | 613 fprintf (FILE, "L%s", xname); \ |
| 614 else if (!strncmp (xname, ".objc_class_name_", 17)) \ | |
| 615 fprintf (FILE, "%s", xname); \ | |
| 616 else if (xname[0] != '"' && name_needs_quotes (xname)) \ | |
| 617 fprintf (FILE, "\"%s\"", xname); \ | |
| 618 else \ | |
| 619 asm_fprintf (FILE, "%U%s", xname); \ | |
| 620 } while (0) | |
| 621 | |
| 622 /* Output before executable code. */ | |
| 623 #undef TEXT_SECTION_ASM_OP | |
| 624 #define TEXT_SECTION_ASM_OP "\t.text" | |
| 625 | |
| 626 /* Output before writable data. */ | |
| 627 | |
| 628 #undef DATA_SECTION_ASM_OP | |
| 629 #define DATA_SECTION_ASM_OP "\t.data" | |
| 630 | |
| 631 #undef ALIGN_ASM_OP | |
| 632 #define ALIGN_ASM_OP ".align" | |
| 633 | |
| 634 #undef ASM_OUTPUT_ALIGN | |
| 635 #define ASM_OUTPUT_ALIGN(FILE,LOG) \ | |
| 636 if ((LOG) != 0) \ | |
|
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637 fprintf (FILE, "\t%s\t%d\n", ALIGN_ASM_OP, (LOG)) |
| 0 | 638 |
| 639 /* The maximum alignment which the object file format can support in | |
| 640 bits. For Mach-O, this is 2^15 bytes. */ | |
| 641 | |
| 642 #undef MAX_OFILE_ALIGNMENT | |
| 643 #define MAX_OFILE_ALIGNMENT (0x8000 * 8) | |
| 644 | |
|
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645 #define L2_MAX_OFILE_ALIGNMENT 15 |
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646 |
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647 /* These are the three variants that emit referenced blank space. */ |
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648 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
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649 darwin_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) |
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650 |
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651 #undef ASM_OUTPUT_ALIGNED_DECL_LOCAL |
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652 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \ |
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653 darwin_asm_output_aligned_decl_local \ |
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654 ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) |
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655 |
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656 #undef ASM_OUTPUT_ALIGNED_DECL_COMMON |
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657 #define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \ |
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658 darwin_asm_output_aligned_decl_common \ |
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659 ((FILE), (DECL), (NAME), (SIZE), (ALIGN)) |
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660 |
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661 /* The generic version, archs should over-ride where required. */ |
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662 #define MACHOPIC_NL_SYMBOL_PTR_SECTION ".non_lazy_symbol_pointer" |
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663 |
| 0 | 664 /* Declare the section variables. */ |
| 665 #ifndef USED_FOR_TARGET | |
| 666 enum darwin_section_enum { | |
| 667 #define DEF_SECTION(NAME, FLAGS, DIRECTIVE, OBJC) NAME, | |
| 668 #include "darwin-sections.def" | |
| 669 #undef DEF_SECTION | |
| 670 NUM_DARWIN_SECTIONS | |
| 671 }; | |
| 672 extern GTY(()) section * darwin_sections[NUM_DARWIN_SECTIONS]; | |
| 673 #endif | |
| 674 | |
| 675 #undef TARGET_ASM_SELECT_SECTION | |
| 676 #define TARGET_ASM_SELECT_SECTION machopic_select_section | |
|
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677 |
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678 #undef TARGET_ASM_FUNCTION_SECTION |
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679 #define TARGET_ASM_FUNCTION_SECTION darwin_function_section |
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680 |
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681 #undef TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS |
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682 #define TARGET_ASM_FUNCTION_SWITCHED_TEXT_SECTIONS \ |
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683 darwin_function_switched_text_sections |
| 0 | 684 |
| 685 #undef TARGET_ASM_SELECT_RTX_SECTION | |
| 686 #define TARGET_ASM_SELECT_RTX_SECTION machopic_select_rtx_section | |
| 687 #undef TARGET_ASM_UNIQUE_SECTION | |
| 688 #define TARGET_ASM_UNIQUE_SECTION darwin_unique_section | |
| 689 #undef TARGET_ASM_FUNCTION_RODATA_SECTION | |
| 690 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section | |
| 691 #undef TARGET_ASM_RELOC_RW_MASK | |
| 692 #define TARGET_ASM_RELOC_RW_MASK machopic_reloc_rw_mask | |
| 693 | |
| 694 | |
| 695 #define ASM_DECLARE_UNRESOLVED_REFERENCE(FILE,NAME) \ | |
| 696 do { \ | |
| 697 if (FILE) { \ | |
| 698 if (MACHOPIC_INDIRECT) \ | |
| 699 fprintf (FILE, "\t.lazy_reference "); \ | |
| 700 else \ | |
| 701 fprintf (FILE, "\t.reference "); \ | |
| 702 assemble_name (FILE, NAME); \ | |
| 703 fprintf (FILE, "\n"); \ | |
| 704 } \ | |
| 705 } while (0) | |
| 706 | |
| 707 #define ASM_DECLARE_CLASS_REFERENCE(FILE,NAME) \ | |
| 708 do { \ | |
| 709 if (FILE) { \ | |
| 710 fprintf (FILE, "\t"); \ | |
| 711 assemble_name (FILE, NAME); \ | |
| 712 fprintf (FILE, "=0\n"); \ | |
| 713 (*targetm.asm_out.globalize_label) (FILE, NAME); \ | |
| 714 } \ | |
| 715 } while (0) | |
| 716 | |
| 717 /* Globalizing directive for a label. */ | |
|
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718 #define GLOBAL_ASM_OP "\t.globl " |
| 0 | 719 #define TARGET_ASM_GLOBALIZE_LABEL darwin_globalize_label |
| 720 | |
| 721 /* Emit an assembler directive to set visibility for a symbol. Used | |
| 722 to support visibility attribute and Darwin's private extern | |
| 723 feature. */ | |
| 724 #undef TARGET_ASM_ASSEMBLE_VISIBILITY | |
| 725 #define TARGET_ASM_ASSEMBLE_VISIBILITY darwin_assemble_visibility | |
| 726 | |
| 727 /* Extra attributes for Darwin. */ | |
| 728 #define SUBTARGET_ATTRIBUTE_TABLE \ | |
| 729 /* { name, min_len, max_len, decl_req, type_req, fn_type_req, handler } */ \ | |
| 730 { "apple_kext_compatibility", 0, 0, false, true, false, \ | |
| 731 darwin_handle_kext_attribute }, \ | |
| 732 { "weak_import", 0, 0, true, false, false, \ | |
| 733 darwin_handle_weak_import_attribute } | |
| 734 | |
| 735 #undef ASM_GENERATE_INTERNAL_LABEL | |
| 736 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ | |
| 737 sprintf (LABEL, "*%s%ld", PREFIX, (long)(NUM)) | |
| 738 | |
| 739 #undef TARGET_ASM_MARK_DECL_PRESERVED | |
| 740 #define TARGET_ASM_MARK_DECL_PRESERVED darwin_mark_decl_preserved | |
| 741 | |
| 742 /* Set on a symbol with SYMBOL_FLAG_FUNCTION or | |
| 743 MACHO_SYMBOL_FLAG_VARIABLE to indicate that the function or | |
| 744 variable has been defined in this translation unit. | |
| 745 When porting Mach-O to new architectures you need to make | |
| 746 sure these aren't clobbered by the backend. */ | |
| 747 | |
| 748 #define MACHO_SYMBOL_FLAG_VARIABLE (SYMBOL_FLAG_MACH_DEP) | |
| 749 #define MACHO_SYMBOL_FLAG_DEFINED ((SYMBOL_FLAG_MACH_DEP) << 1) | |
| 750 | |
| 751 /* Set on a symbol to indicate when fix-and-continue style code | |
| 752 generation is being used and the symbol refers to a static symbol | |
| 753 that should be rebound from new instances of a translation unit to | |
| 754 the original instance of the data. */ | |
| 755 | |
| 756 #define MACHO_SYMBOL_STATIC ((SYMBOL_FLAG_MACH_DEP) << 2) | |
| 757 | |
| 758 /* Symbolic names for various things we might know about a symbol. */ | |
| 759 | |
| 760 enum machopic_addr_class { | |
| 761 MACHOPIC_UNDEFINED, | |
| 762 MACHOPIC_DEFINED_DATA, | |
| 763 MACHOPIC_UNDEFINED_DATA, | |
| 764 MACHOPIC_DEFINED_FUNCTION, | |
| 765 MACHOPIC_UNDEFINED_FUNCTION | |
| 766 }; | |
| 767 | |
| 768 /* Macros defining the various PIC cases. */ | |
| 769 | |
|
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770 #undef MACHO_DYNAMIC_NO_PIC_P |
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771 #define MACHO_DYNAMIC_NO_PIC_P (TARGET_MACHO_DYNAMIC_NO_PIC) |
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772 #undef MACHOPIC_INDIRECT |
| 0 | 773 #define MACHOPIC_INDIRECT (flag_pic || MACHO_DYNAMIC_NO_PIC_P) |
| 774 #define MACHOPIC_JUST_INDIRECT (MACHO_DYNAMIC_NO_PIC_P) | |
|
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775 #undef MACHOPIC_PURE |
| 0 | 776 #define MACHOPIC_PURE (flag_pic && ! MACHO_DYNAMIC_NO_PIC_P) |
| 777 | |
| 778 #undef TARGET_ENCODE_SECTION_INFO | |
| 779 #define TARGET_ENCODE_SECTION_INFO darwin_encode_section_info | |
| 780 #undef TARGET_STRIP_NAME_ENCODING | |
| 781 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding | |
| 782 | |
| 783 #define GEN_BINDER_NAME_FOR_STUB(BUF,STUB,STUB_LENGTH) \ | |
| 784 do { \ | |
| 785 const char *const stub_ = (STUB); \ | |
| 786 char *buffer_ = (BUF); \ | |
| 787 strcpy (buffer_, stub_); \ | |
| 788 if (stub_[0] == '"') \ | |
| 789 { \ | |
| 790 strcpy (buffer_ + (STUB_LENGTH) - 1, "_binder\""); \ | |
| 791 } \ | |
| 792 else \ | |
| 793 { \ | |
| 794 strcpy (buffer_ + (STUB_LENGTH), "_binder"); \ | |
| 795 } \ | |
| 796 } while (0) | |
| 797 | |
| 798 #define GEN_SYMBOL_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \ | |
| 799 do { \ | |
| 800 const char *const symbol_ = (SYMBOL); \ | |
| 801 char *buffer_ = (BUF); \ | |
| 802 if (name_needs_quotes (symbol_) && symbol_[0] != '"') \ | |
| 803 { \ | |
| 804 sprintf (buffer_, "\"%s\"", symbol_); \ | |
| 805 } \ | |
| 806 else \ | |
| 807 { \ | |
| 808 strcpy (buffer_, symbol_); \ | |
| 809 } \ | |
| 810 } while (0) | |
| 811 | |
| 812 /* Given a symbol name string, create the lazy pointer version | |
| 813 of the symbol name. */ | |
| 814 | |
| 815 #define GEN_LAZY_PTR_NAME_FOR_SYMBOL(BUF,SYMBOL,SYMBOL_LENGTH) \ | |
| 816 do { \ | |
| 817 const char *symbol_ = (SYMBOL); \ | |
| 818 char *buffer_ = (BUF); \ | |
| 819 if (symbol_[0] == '"') \ | |
| 820 { \ | |
| 821 strcpy (buffer_, "\"L"); \ | |
| 822 strcpy (buffer_ + 2, symbol_ + 1); \ | |
| 823 strcpy (buffer_ + (SYMBOL_LENGTH), "$lazy_ptr\""); \ | |
| 824 } \ | |
| 825 else if (name_needs_quotes (symbol_)) \ | |
| 826 { \ | |
| 827 strcpy (buffer_, "\"L"); \ | |
| 828 strcpy (buffer_ + 2, symbol_); \ | |
| 829 strcpy (buffer_ + (SYMBOL_LENGTH) + 2, "$lazy_ptr\""); \ | |
| 830 } \ | |
| 831 else \ | |
| 832 { \ | |
| 833 strcpy (buffer_, "L"); \ | |
| 834 strcpy (buffer_ + 1, symbol_); \ | |
| 835 strcpy (buffer_ + (SYMBOL_LENGTH) + 1, "$lazy_ptr"); \ | |
| 836 } \ | |
| 837 } while (0) | |
| 838 | |
| 839 #define EH_FRAME_SECTION_NAME "__TEXT" | |
| 840 #define EH_FRAME_SECTION_ATTR ",coalesced,no_toc+strip_static_syms+live_support" | |
| 841 | |
| 842 /* Java runtime class list. */ | |
| 843 #define JCR_SECTION_NAME "__DATA,jcr,regular,no_dead_strip" | |
| 844 | |
| 845 #undef ASM_PREFERRED_EH_DATA_FORMAT | |
| 846 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ | |
| 847 (((CODE) == 2 && (GLOBAL) == 1) \ | |
| 848 ? (DW_EH_PE_pcrel | DW_EH_PE_indirect | DW_EH_PE_sdata4) : \ | |
| 849 ((CODE) == 1 || (GLOBAL) == 0) ? DW_EH_PE_pcrel : DW_EH_PE_absptr) | |
| 850 | |
| 851 #define ASM_OUTPUT_DWARF_DELTA(FILE,SIZE,LABEL1,LABEL2) \ | |
| 852 darwin_asm_output_dwarf_delta (FILE, SIZE, LABEL1, LABEL2) | |
| 853 | |
| 854 #define ASM_OUTPUT_DWARF_OFFSET(FILE,SIZE,LABEL,BASE) \ | |
| 855 darwin_asm_output_dwarf_offset (FILE, SIZE, LABEL, BASE) | |
| 856 | |
| 857 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(ASM_OUT_FILE, ENCODING, SIZE, ADDR, DONE) \ | |
| 858 if (ENCODING == ASM_PREFERRED_EH_DATA_FORMAT (2, 1)) { \ | |
| 859 darwin_non_lazy_pcrel (ASM_OUT_FILE, ADDR); \ | |
| 860 goto DONE; \ | |
| 861 } | |
| 862 | |
| 863 /* Experimentally, putting jump tables in text is faster on SPEC. | |
| 864 Also this is needed for correctness for coalesced functions. */ | |
| 865 | |
| 866 #ifndef JUMP_TABLES_IN_TEXT_SECTION | |
| 867 #define JUMP_TABLES_IN_TEXT_SECTION 1 | |
| 868 #endif | |
| 869 | |
| 870 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false | |
| 871 | |
| 872 #define TARGET_ASM_INIT_SECTIONS darwin_init_sections | |
| 873 #undef TARGET_ASM_NAMED_SECTION | |
| 874 #define TARGET_ASM_NAMED_SECTION darwin_asm_named_section | |
| 875 | |
| 876 #define DARWIN_REGISTER_TARGET_PRAGMAS() \ | |
| 877 do { \ | |
| 878 if (!flag_preprocess_only) \ | |
| 879 cpp_register_pragma (parse_in, NULL, "mark", \ | |
| 880 darwin_pragma_ignore, false); \ | |
| 881 c_register_pragma (0, "options", darwin_pragma_options); \ | |
| 882 c_register_pragma (0, "segment", darwin_pragma_ignore); \ | |
| 883 c_register_pragma (0, "unused", darwin_pragma_unused); \ | |
| 884 c_register_pragma (0, "ms_struct", darwin_pragma_ms_struct); \ | |
| 885 } while (0) | |
| 886 | |
| 887 #undef ASM_APP_ON | |
| 888 #define ASM_APP_ON "" | |
| 889 #undef ASM_APP_OFF | |
| 890 #define ASM_APP_OFF "" | |
| 891 | |
| 892 void darwin_register_frameworks (const char *, const char *, int); | |
| 893 void darwin_register_objc_includes (const char *, const char *, int); | |
| 894 #define TARGET_EXTRA_PRE_INCLUDES darwin_register_objc_includes | |
| 895 #define TARGET_EXTRA_INCLUDES darwin_register_frameworks | |
| 896 | |
| 897 void add_framework_path (char *); | |
| 898 #define TARGET_OPTF add_framework_path | |
| 899 | |
| 900 #define TARGET_POSIX_IO | |
| 901 | |
| 902 /* All new versions of Darwin have C99 functions. */ | |
| 903 | |
| 904 #define TARGET_C99_FUNCTIONS 1 | |
| 905 | |
| 906 #define WINT_TYPE "int" | |
| 907 | |
| 908 /* Every program on darwin links against libSystem which contains the pthread | |
| 909 routines, so there's no need to explicitly call out when doing threaded | |
| 910 work. */ | |
| 911 | |
| 912 #undef GOMP_SELF_SPECS | |
| 913 #define GOMP_SELF_SPECS "" | |
| 914 | |
|
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915 /* Darwin disables section anchors by default. |
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916 They should be enabled per arch where support exists in that arch. */ |
| 0 | 917 #define TARGET_ASM_OUTPUT_ANCHOR NULL |
|
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918 #define DARWIN_SECTION_ANCHORS 0 |
| 0 | 919 |
| 920 /* Attempt to turn on execute permission for the stack. This may be | |
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921 used by TARGET_TRAMPOLINE_INIT if the target needs it (that is, |
| 0 | 922 if the target machine can change execute permissions on a page). |
| 923 | |
| 924 There is no way to query the execute permission of the stack, so | |
| 925 we always issue the mprotect() call. | |
| 926 | |
| 927 Unfortunately it is not possible to make this namespace-clean. | |
| 928 | |
| 929 Also note that no errors should be emitted by this code; it is | |
| 930 considered dangerous for library calls to send messages to | |
| 931 stdout/stderr. */ | |
| 932 | |
| 933 #define ENABLE_EXECUTE_STACK \ | |
| 934 extern void __enable_execute_stack (void *); \ | |
| 935 void \ | |
| 936 __enable_execute_stack (void *addr) \ | |
| 937 { \ | |
| 938 extern int mprotect (void *, size_t, int); \ | |
| 939 extern int getpagesize (void); \ | |
| 940 static int size; \ | |
| 941 static long mask; \ | |
| 942 \ | |
| 943 char *page, *end; \ | |
| 944 \ | |
| 945 if (size == 0) \ | |
| 946 { \ | |
| 947 size = getpagesize(); \ | |
| 948 mask = ~((long) size - 1); \ | |
| 949 } \ | |
| 950 \ | |
| 951 page = (char *) (((long) addr) & mask); \ | |
| 952 end = (char *) ((((long) (addr + (TARGET_64BIT ? 48 : 40))) & mask) + size); \ | |
| 953 \ | |
| 954 /* 7 == PROT_READ | PROT_WRITE | PROT_EXEC */ \ | |
| 955 (void) mprotect (page, end - page, 7); \ | |
| 956 } | |
| 957 | |
| 958 /* For Apple KEXTs, we make the constructors return this to match gcc | |
| 959 2.95. */ | |
| 960 #define TARGET_CXX_CDTOR_RETURNS_THIS (darwin_kextabi_p) | |
| 961 #define TARGET_KEXTABI flag_apple_kext | |
| 962 | |
|
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963 /* We have target-specific builtins. */ |
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964 #define TARGET_FOLD_BUILTIN darwin_fold_builtin |
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965 |
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966 #define TARGET_OBJC_CONSTRUCT_STRING_OBJECT \ |
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967 darwin_objc_construct_string |
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968 |
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969 #define TARGET_STRING_OBJECT_REF_TYPE_P \ |
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970 darwin_cfstring_ref_p |
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971 |
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972 #define TARGET_N_FORMAT_TYPES 1 |
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973 #define TARGET_FORMAT_TYPES darwin_additional_format_types |
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974 |
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975 #define TARGET_CHECK_STRING_OBJECT_FORMAT_ARG \ |
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976 darwin_check_cfstring_format_arg |
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977 |
| 0 | 978 #define TARGET_HAS_TARGETCM 1 |
| 979 | |
|
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980 #ifndef USED_FOR_TARGET |
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981 extern void darwin_driver_init (unsigned int *,struct cl_decoded_option **); |
| 0 | 982 #define GCC_DRIVER_HOST_INITIALIZATION \ |
|
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983 darwin_driver_init (&decoded_options_count, &decoded_options) |
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984 #endif |
| 0 | 985 |
| 986 /* The Apple assembler and linker do not support constructor priorities. */ | |
| 987 #undef SUPPORTS_INIT_PRIORITY | |
| 988 #define SUPPORTS_INIT_PRIORITY 0 | |
| 989 | |
| 990 #endif /* CONFIG_DARWIN_H */ |