Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/darwin.h @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Target definitions for PowerPC running Darwin (Mac OS X). |
| 145 | 2 Copyright (C) 1997-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by Apple Computer Inc. |
| 4 | |
| 5 This file is part of GCC. | |
| 6 | |
| 7 GCC is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published | |
| 9 by the Free Software Foundation; either version 3, or (at your | |
| 10 option) any later version. | |
| 11 | |
| 12 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 15 License for more details. | |
| 16 | |
| 17 You should have received a copy of the GNU General Public License | |
| 18 along with GCC; see the file COPYING3. If not see | |
| 19 <http://www.gnu.org/licenses/>. */ | |
| 20 | |
|
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
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21 #undef DARWIN_PPC |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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22 #define DARWIN_PPC 1 |
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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23 |
| 0 | 24 /* The "Darwin ABI" is mostly like AIX, but with some key differences. */ |
| 25 | |
| 26 #define DEFAULT_ABI ABI_DARWIN | |
| 27 | |
| 28 #ifdef IN_LIBGCC2 | |
| 29 #undef TARGET_64BIT | |
| 30 #ifdef __powerpc64__ | |
| 31 #define TARGET_64BIT 1 | |
| 32 #else | |
| 33 #define TARGET_64BIT 0 | |
| 34 #endif | |
| 35 #endif | |
| 36 | |
| 37 /* The object file format is Mach-O. */ | |
| 38 | |
| 39 #define TARGET_OBJECT_FORMAT OBJECT_MACHO | |
| 40 | |
| 41 /* Size of the Obj-C jump buffer. */ | |
| 42 #define OBJC_JBLEN ((TARGET_64BIT) ? (26*2 + 18*2 + 129 + 1) : (26 + 18*2 + 129 + 1)) | |
| 43 | |
| 44 /* We're not ever going to do TOCs. */ | |
| 45 | |
| 145 | 46 #define TARGET_HAS_TOC 0 |
| 0 | 47 |
| 48 /* Override the default rs6000 definition. */ | |
| 49 #undef PTRDIFF_TYPE | |
| 50 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") | |
| 51 | |
| 52 #define TARGET_OS_CPP_BUILTINS() \ | |
| 53 do \ | |
| 54 { \ | |
| 55 builtin_define ("__POWERPC__"); \ | |
| 145 | 56 builtin_define ("__PPC__"); \ |
| 57 if (TARGET_64BIT) \ | |
| 58 { \ | |
| 59 builtin_define ("__ppc64__"); \ | |
| 60 builtin_define ("__PPC64__"); \ | |
| 61 builtin_define ("__powerpc64__"); \ | |
| 62 builtin_assert ("cpu=powerpc64"); \ | |
| 63 builtin_assert ("machine=powerpc64"); \ | |
| 64 } \ | |
| 65 else \ | |
| 66 { \ | |
| 67 builtin_define ("__ppc__"); \ | |
| 68 builtin_define_std ("PPC"); \ | |
| 69 builtin_assert ("cpu=powerpc"); \ | |
| 70 builtin_assert ("machine=powerpc"); \ | |
| 71 } \ | |
| 0 | 72 builtin_define ("__NATURAL_ALIGNMENT__"); \ |
| 73 darwin_cpp_builtins (pfile); \ | |
| 74 } \ | |
| 75 while (0) | |
| 76 | |
| 77 #define SUBTARGET_OVERRIDE_OPTIONS darwin_rs6000_override_options () | |
| 78 | |
| 79 #define C_COMMON_OVERRIDE_OPTIONS do { \ | |
| 80 /* On powerpc, __cxa_get_exception_ptr is available starting in the \ | |
| 81 10.4.6 libstdc++.dylib. */ \ | |
| 82 if (strverscmp (darwin_macosx_version_min, "10.4.6") < 0 \ | |
| 83 && flag_use_cxa_get_exception_ptr == 2) \ | |
| 84 flag_use_cxa_get_exception_ptr = 0; \ | |
| 85 if (flag_mkernel) \ | |
| 86 flag_no_builtin = 1; \ | |
| 87 SUBTARGET_C_COMMON_OVERRIDE_OPTIONS; \ | |
| 88 } while (0) | |
| 89 | |
| 90 /* Darwin has 128-bit long double support in libc in 10.4 and later. | |
| 91 Default to 128-bit long doubles even on earlier platforms for ABI | |
| 92 consistency; arithmetic will work even if libc and libm support is | |
| 93 not available. */ | |
| 94 | |
| 95 #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
| 96 | |
| 145 | 97 /* Machine dependent libraries. |
| 98 Include libmx when targeting Darwin 7.0 and above, but before libSystem, | |
| 99 since the functions are actually in libSystem but for 7.x compatibility | |
| 100 we want them to be looked for in libmx first. | |
| 101 Include libSystemStubs when compiling against 10.3 - 10.5 SDKs (we assume | |
| 102 this is the case when targetting these) - but not for 64-bit long double. | |
| 103 Don't do either for m64, the library is either a dummy or non-existent. | |
| 104 */ | |
| 105 | |
| 106 #undef LIB_SPEC | |
| 107 #define LIB_SPEC \ | |
| 108 "%{!static: \ | |
| 109 %{!m64:%{!mlong-double-64: \ | |
| 110 %{pg:%:version-compare(>< 10.3 10.5 mmacosx-version-min= -lSystemStubs_profile)} \ | |
| 111 %{!pg:%:version-compare(>< 10.3 10.5 mmacosx-version-min= -lSystemStubs)} \ | |
| 112 %:version-compare(>< 10.3 10.4 mmacosx-version-min= -lmx)}} \ | |
| 113 -lSystem \ | |
| 114 }" | |
| 0 | 115 |
| 116 /* We want -fPIC by default, unless we're using -static to compile for | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
|
117 the kernel or some such. The "-faltivec" option should have been |
|
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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118 called "-maltivec" all along. */ |
| 0 | 119 |
| 120 #define CC1_SPEC "\ | |
| 121 %(cc1_cpu) \ | |
| 122 %{g: %{!fno-eliminate-unused-debug-symbols: -feliminate-unused-debug-symbols }} \ | |
| 123 %{static: %{Zdynamic: %e conflicting code gen style switches are used}}\ | |
|
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
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changeset
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124 %{!mkernel:%{!static:%{!mdynamic-no-pic:-fPIC}}} \ |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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125 %{faltivec:-maltivec -include altivec.h} %{fno-altivec:-mno-altivec} \ |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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126 %<faltivec %<fno-altivec " \ |
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f6334be47118
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nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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changeset
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127 DARWIN_CC1_SPEC |
| 0 | 128 |
| 145 | 129 /* Default to PPC for single arch builds. */ |
| 130 #define DARWIN_ARCH_SPEC "ppc" | |
| 0 | 131 |
| 132 #define DARWIN_SUBARCH_SPEC " \ | |
| 133 %{mcpu=601:ppc601; \ | |
| 134 mcpu=603:ppc603; \ | |
| 135 mcpu=603e:ppc603; \ | |
| 136 mcpu=604:ppc604; \ | |
| 137 mcpu=604e:ppc604e; \ | |
| 138 mcpu=740:ppc750; \ | |
| 139 mcpu=750:ppc750; \ | |
| 140 mcpu=G3:ppc750; \ | |
| 141 mcpu=7400:ppc7400; \ | |
| 142 mcpu=G4:ppc7400; \ | |
| 143 mcpu=7450:ppc7450; \ | |
| 144 mcpu=970:ppc970; \ | |
| 145 mcpu=power4:ppc970; \ | |
| 146 mcpu=G5:ppc970; \ | |
| 145 | 147 :ppc}" |
| 0 | 148 |
| 131 | 149 /* We need to jam the crt to 10.5 for 10.6 (Rosetta) use. */ |
| 150 #undef DARWIN_CRT1_SPEC | |
| 151 #define DARWIN_CRT1_SPEC \ | |
| 152 "%:version-compare(!> 10.5 mmacosx-version-min= -lcrt1.o) \ | |
| 153 %:version-compare(>< 10.5 10.7 mmacosx-version-min= -lcrt1.10.5.o) \ | |
| 154 %{fgnu-tm: -lcrttms.o}" | |
| 155 | |
| 145 | 156 /* crt2.o is at least partially required for 10.3.x and earlier. |
| 157 It deals with registration of the unwind frames, where this is not | |
| 158 automatically provided by the system. So we need it for any case that | |
| 159 might use exceptions. */ | |
| 160 #undef DARWIN_CRT2_SPEC | |
| 0 | 161 #define DARWIN_CRT2_SPEC \ |
| 145 | 162 "%{!m64:%{shared-libgcc|static-libstdc++|fexceptions|fobjc-exceptions|fgnu-runtime: \ |
| 163 %:version-compare(!> 10.4 mmacosx-version-min= crt2.o%s) \ | |
| 164 }}" | |
| 165 | |
| 166 /* crt3 deals with providing cxa_atexit on earlier systems (or fixing it up, | |
| 167 for broken versions). It's only needed for c++ code, so we can make it | |
| 168 conditional on shared-libgcc since that's forced on for c++. */ | |
| 169 #undef DARWIN_CRT3_SPEC | |
| 170 #define DARWIN_CRT3_SPEC \ | |
| 171 "%{!m64:%{shared-libgcc|static-libstdc++: \ | |
| 172 %:version-compare(>< 10.4 10.5 mmacosx-version-min= crt3.o%s) \ | |
| 173 %:version-compare(!> 10.4 mmacosx-version-min= crt3_2.o%s) \ | |
| 174 }}" | |
| 175 | |
| 176 /* As for crt1, we need to force the dylib crt for 10.6. */ | |
| 177 #undef DARWIN_DYLIB1_SPEC | |
| 178 #define DARWIN_DYLIB1_SPEC \ | |
| 179 "%:version-compare(!> 10.5 mmacosx-version-min= -ldylib1.o) \ | |
| 180 %:version-compare(>< 10.5 10.7 mmacosx-version-min= -ldylib1.10.5.o)" | |
| 181 | |
| 182 /* Likewise, the bundle crt. */ | |
| 183 #undef DARWIN_BUNDLE1_SPEC | |
| 184 #define DARWIN_BUNDLE1_SPEC \ | |
| 185 "%{!static:%:version-compare(< 10.7 mmacosx-version-min= -lbundle1.o) \ | |
| 186 %{fgnu-tm: -lcrttms.o}}" | |
| 187 | |
| 188 /* The PPC regs save/restore functions are leaves and could, conceivably | |
| 189 be used by the tm destructor. */ | |
| 190 #undef ENDFILE_SPEC | |
| 191 #define ENDFILE_SPEC TM_DESTRUCTOR " -lef_ppc" | |
| 0 | 192 |
| 193 #undef SUBTARGET_EXTRA_SPECS | |
| 194 #define SUBTARGET_EXTRA_SPECS \ | |
| 195 DARWIN_EXTRA_SPECS \ | |
| 196 { "darwin_arch", DARWIN_ARCH_SPEC }, \ | |
| 197 { "darwin_crt2", DARWIN_CRT2_SPEC }, \ | |
| 198 { "darwin_subarch", DARWIN_SUBARCH_SPEC }, | |
| 199 | |
| 200 /* Output a .machine directive. */ | |
| 201 #undef TARGET_ASM_FILE_START | |
| 202 #define TARGET_ASM_FILE_START rs6000_darwin_file_start | |
| 203 | |
| 204 /* Make both r2 and r13 available for allocation. */ | |
| 205 #define FIXED_R2 0 | |
| 206 #define FIXED_R13 0 | |
| 207 | |
| 208 /* Base register for access to local variables of the function. */ | |
| 209 | |
| 210 #undef HARD_FRAME_POINTER_REGNUM | |
| 211 #define HARD_FRAME_POINTER_REGNUM 30 | |
| 212 | |
| 213 #undef RS6000_PIC_OFFSET_TABLE_REGNUM | |
| 214 #define RS6000_PIC_OFFSET_TABLE_REGNUM 31 | |
| 215 | |
| 145 | 216 /* Darwin's stack must remain 16-byte aligned for both 32 and 64 bit |
| 217 ABIs. */ | |
| 218 | |
| 219 #undef STACK_BOUNDARY | |
| 220 #define STACK_BOUNDARY 128 | |
| 221 | |
| 222 /* Offset within stack frame to start allocating local variables at. | |
| 223 For supported Darwin versions, FRAME_GROWS_DOWNWARD is true, therefore | |
| 224 this value is the offset to the END of the first local allocated. | |
| 225 | |
| 226 On the RS/6000, the frame pointer is the same as the stack pointer, | |
| 227 except for dynamic allocations. So we start after the fixed area and | |
| 228 outgoing parameter area. | |
| 229 | |
| 230 If the function uses dynamic stack space (CALLS_ALLOCA is set), that | |
| 231 space needs to be aligned to STACK_BOUNDARY, i.e. the sum of the | |
| 232 sizes of the fixed area and the parameter area must be a multiple of | |
| 233 STACK_BOUNDARY. */ | |
| 0 | 234 |
| 111 | 235 #undef RS6000_STARTING_FRAME_OFFSET |
| 236 #define RS6000_STARTING_FRAME_OFFSET \ | |
| 145 | 237 (cfun->calls_alloca \ |
| 238 ? RS6000_ALIGN (crtl->outgoing_args_size + RS6000_SAVE_AREA, 16) \ | |
| 239 : (RS6000_ALIGN (crtl->outgoing_args_size, 16) + RS6000_SAVE_AREA)) | |
| 240 | |
| 241 /* Offset from the stack pointer register to an item dynamically | |
| 242 allocated on the stack, e.g., by `alloca'. | |
| 243 | |
| 244 The default value for this macro is `STACK_POINTER_OFFSET' plus the | |
| 245 length of the outgoing arguments. The default is correct for most | |
| 246 machines. See `function.c' for details. | |
| 247 | |
| 248 This value must be a multiple of STACK_BOUNDARY (hard coded in | |
| 249 `emit-rtl.c'). */ | |
| 0 | 250 |
| 251 #undef STACK_DYNAMIC_OFFSET | |
| 252 #define STACK_DYNAMIC_OFFSET(FUNDECL) \ | |
| 145 | 253 RS6000_ALIGN (crtl->outgoing_args_size.to_constant() \ |
| 254 + STACK_POINTER_OFFSET, 16) | |
| 0 | 255 |
| 111 | 256 /* Darwin uses a function call if everything needs to be saved/restored. */ |
| 0 | 257 |
| 258 #undef WORLD_SAVE_P | |
| 259 #define WORLD_SAVE_P(INFO) ((INFO)->world_save_p) | |
| 260 | |
| 111 | 261 /* We don't use these on Darwin, they are just place-holders. */ |
| 262 #define SAVE_FP_PREFIX "" | |
| 263 #define SAVE_FP_SUFFIX "" | |
| 264 #define RESTORE_FP_PREFIX "" | |
| 265 #define RESTORE_FP_SUFFIX "" | |
| 266 | |
| 0 | 267 /* The assembler wants the alternate register names, but without |
| 268 leading percent sign. */ | |
| 269 #undef REGISTER_NAMES | |
| 270 #define REGISTER_NAMES \ | |
| 271 { \ | |
| 145 | 272 /* GPRs */ \ |
| 0 | 273 "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ |
| 274 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ | |
| 275 "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ | |
| 276 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ | |
| 145 | 277 /* FPRs */ \ |
| 0 | 278 "f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", \ |
| 279 "f8", "f9", "f10", "f11", "f12", "f13", "f14", "f15", \ | |
| 280 "f16", "f17", "f18", "f19", "f20", "f21", "f22", "f23", \ | |
| 281 "f24", "f25", "f26", "f27", "f28", "f29", "f30", "f31", \ | |
| 145 | 282 /* VRs */ \ |
| 283 "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", \ | |
| 284 "v8", "v9", "v10", "v11", "v12", "v13", "v14", "v15", \ | |
| 285 "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", \ | |
| 286 "v24", "v25", "v26", "v27", "v28", "v29", "v30", "v31", \ | |
| 287 /* lr ctr ca ap */ \ | |
| 288 "lr", "ctr", "xer", "ap", \ | |
| 289 /* cr0..cr7 */ \ | |
| 0 | 290 "cr0", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7", \ |
| 145 | 291 /* vrsave vscr sfp */ \ |
| 292 "vrsave", "vscr", "sfp" \ | |
| 0 | 293 } |
| 294 | |
| 295 /* This outputs NAME to FILE. */ | |
| 296 | |
| 297 #undef RS6000_OUTPUT_BASENAME | |
| 298 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \ | |
| 299 assemble_name (FILE, NAME) | |
| 300 | |
| 301 /* Globalizing directive for a label. */ | |
| 302 #undef GLOBAL_ASM_OP | |
| 303 #define GLOBAL_ASM_OP "\t.globl " | |
| 304 #undef TARGET_ASM_GLOBALIZE_LABEL | |
| 305 | |
| 306 /* This is how to output an internal label prefix. rs6000.c uses this | |
| 307 when generating traceback tables. */ | |
| 308 /* Not really used for Darwin? */ | |
| 309 | |
| 310 #undef ASM_OUTPUT_INTERNAL_LABEL_PREFIX | |
| 311 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \ | |
| 312 fprintf (FILE, "%s", PREFIX) | |
| 313 | |
| 314 /* Override the standard rs6000 definition. */ | |
| 315 | |
| 316 #undef ASM_COMMENT_START | |
| 317 #define ASM_COMMENT_START ";" | |
| 318 | |
| 319 /* This is how to output an assembler line that says to advance | |
| 320 the location counter to a multiple of 2**LOG bytes using the | |
| 321 "nop" instruction as padding. */ | |
| 322 | |
| 323 #define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \ | |
| 324 do \ | |
| 325 { \ | |
| 326 if ((LOG) < 3) \ | |
| 327 { \ | |
| 328 ASM_OUTPUT_ALIGN (FILE,LOG); \ | |
| 329 } \ | |
| 330 else /* nop == ori r0,r0,0 */ \ | |
| 331 fprintf (FILE, "\t.align32 %d,0x60000000\n", (LOG)); \ | |
| 332 } while (0) | |
| 333 | |
| 334 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN | |
| 335 /* This is supported in cctools 465 and later. The macro test | |
| 336 above prevents using it in earlier build environments. */ | |
| 337 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ | |
| 145 | 338 if ((LOG) > 0) \ |
| 0 | 339 { \ |
| 145 | 340 if ((MAX_SKIP) <= 0) \ |
| 0 | 341 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ |
| 342 else \ | |
| 343 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ | |
| 344 } | |
| 345 #endif | |
| 346 | |
| 347 /* Generate insns to call the profiler. */ | |
| 348 | |
| 349 #define PROFILE_HOOK(LABEL) output_profile_hook (LABEL) | |
| 350 | |
| 351 /* Function name to call to do profiling. */ | |
| 352 | |
| 353 #define RS6000_MCOUNT "*mcount" | |
| 354 | |
| 355 /* Default processor: G4, and G5 for 64-bit. */ | |
| 356 | |
| 357 #undef PROCESSOR_DEFAULT | |
| 358 #define PROCESSOR_DEFAULT PROCESSOR_PPC7400 | |
| 359 #undef PROCESSOR_DEFAULT64 | |
| 360 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4 | |
| 361 | |
| 362 /* Default target flag settings. Despite the fact that STMW/LMW | |
| 363 serializes, it's still a big code size win to use them. Use FSEL by | |
| 364 default as well. */ | |
| 365 | |
| 366 #undef TARGET_DEFAULT | |
| 111 | 367 #define TARGET_DEFAULT (MASK_MULTIPLE | MASK_PPC_GFXOPT) |
| 0 | 368 |
| 111 | 369 /* Darwin always uses IBM long double, never IEEE long double. */ |
| 0 | 370 #undef TARGET_IEEEQUAD |
| 371 #define TARGET_IEEEQUAD 0 | |
| 372 | |
| 111 | 373 #undef TARGET_IEEEQUAD_DEFAULT |
| 374 #define TARGET_IEEEQUAD_DEFAULT 0 | |
| 375 | |
| 0 | 376 /* Since Darwin doesn't do TOCs, stub this out. */ |
| 377 | |
| 378 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) ((void)X, (void)MODE, 0) | |
| 379 | |
| 380 /* Unlike most other PowerPC targets, chars are signed, for | |
| 381 consistency with other Darwin architectures. */ | |
| 382 | |
| 383 #undef DEFAULT_SIGNED_CHAR | |
| 384 #define DEFAULT_SIGNED_CHAR (1) | |
| 385 | |
| 386 /* Given an rtx X being reloaded into a reg required to be | |
| 387 in class CLASS, return the class of reg to actually use. | |
| 388 In general this is just CLASS; but on some machines | |
| 389 in some cases it is preferable to use a more restrictive class. | |
| 390 | |
| 391 On the RS/6000, we have to return NO_REGS when we want to reload a | |
| 392 floating-point CONST_DOUBLE to force it to be copied to memory. | |
| 393 | |
| 394 Don't allow R0 when loading the address of, or otherwise furtling with, | |
| 395 a SYMBOL_REF. */ | |
| 396 | |
| 397 #undef PREFERRED_RELOAD_CLASS | |
| 398 #define PREFERRED_RELOAD_CLASS(X,CLASS) \ | |
| 399 ((CONSTANT_P (X) \ | |
| 400 && reg_classes_intersect_p ((CLASS), FLOAT_REGS)) \ | |
| 401 ? NO_REGS \ | |
| 145 | 402 : ((SYMBOL_REF_P (X) || GET_CODE (X) == HIGH) \ |
| 0 | 403 && reg_class_subset_p (BASE_REGS, (CLASS))) \ |
| 404 ? BASE_REGS \ | |
| 405 : (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT \ | |
| 145 | 406 && (CLASS) == GEN_OR_FLOAT_REGS) \ |
| 0 | 407 ? GENERAL_REGS \ |
| 408 : (CLASS)) | |
| 409 | |
| 111 | 410 /* Compute field alignment. |
| 411 This implements the 'power' alignment rule by pegging the alignment of | |
| 412 items (beyond the first aggregate field) to 32 bits. The pegging is | |
| 413 suppressed for vector and long double items (both 128 in size). | |
| 414 There is a dummy use of the FIELD argument to avoid an unused variable | |
| 415 warning (see PR59496). */ | |
| 416 #define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \ | |
| 417 ((void) (FIELD), \ | |
| 418 (TARGET_ALIGN_NATURAL \ | |
| 419 ? (COMPUTED) \ | |
| 420 : (COMPUTED) == 128 \ | |
| 421 ? 128 \ | |
| 422 : MIN ((COMPUTED), 32))) | |
| 0 | 423 |
| 424 /* Darwin increases natural record alignment to doubleword if the first | |
| 425 field is an FP double while the FP fields remain word aligned. */ | |
| 426 #define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \ | |
| 427 ((TREE_CODE (STRUCT) == RECORD_TYPE \ | |
| 428 || TREE_CODE (STRUCT) == UNION_TYPE \ | |
| 429 || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \ | |
| 430 && TARGET_ALIGN_NATURAL == 0 \ | |
| 431 ? darwin_rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ | |
| 432 : (TREE_CODE (STRUCT) == VECTOR_TYPE \ | |
| 433 && ALTIVEC_VECTOR_MODE (TYPE_MODE (STRUCT))) \ | |
| 434 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \ | |
| 435 : MAX ((COMPUTED), (SPECIFIED))) | |
| 436 | |
| 437 /* Specify padding for the last element of a block move between | |
| 438 registers and memory. FIRST is nonzero if this is the only | |
| 439 element. */ | |
| 440 #define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \ | |
| 111 | 441 (!(FIRST) ? PAD_UPWARD : targetm.calls.function_arg_padding (MODE, TYPE)) |
| 0 | 442 |
| 443 #define DOUBLE_INT_ASM_OP "\t.quad\t" | |
| 444 | |
| 445 /* For binary compatibility with 2.95; Darwin C APIs use bool from | |
| 446 stdbool.h, which was an int-sized enum in 2.95. Users can explicitly | |
| 447 choose to have sizeof(bool)==1 with the -mone-byte-bool switch. */ | |
| 448 #define BOOL_TYPE_SIZE (darwin_one_byte_bool ? CHAR_TYPE_SIZE : INT_TYPE_SIZE) | |
| 449 | |
| 450 #undef REGISTER_TARGET_PRAGMAS | |
| 451 #define REGISTER_TARGET_PRAGMAS() \ | |
| 452 do \ | |
| 453 { \ | |
| 454 DARWIN_REGISTER_TARGET_PRAGMAS(); \ | |
| 145 | 455 targetm.target_option.pragma_parse = rs6000_pragma_target_parse; \ |
| 0 | 456 targetm.resolve_overloaded_builtin = altivec_resolve_overloaded_builtin; \ |
| 457 } \ | |
| 458 while (0) | |
| 459 | |
| 460 #ifdef IN_LIBGCC2 | |
| 461 #include <stdbool.h> | |
| 462 #endif | |
| 463 | |
| 464 /* True, iff we're generating fast turn around debugging code. When | |
| 465 true, we arrange for function prologues to start with 5 nops so | |
| 466 that gdb may insert code to redirect them, and for data to be | |
| 467 accessed indirectly. The runtime uses this indirection to forward | |
| 468 references for data to the original instance of that data. */ | |
| 469 | |
| 470 #define TARGET_FIX_AND_CONTINUE (darwin_fix_and_continue) | |
| 471 | |
| 472 /* This is the reserved direct dispatch address for Objective-C. */ | |
| 473 #define OFFS_MSGSEND_FAST 0xFFFEFF00 | |
| 474 | |
| 475 /* This is the reserved ivar address Objective-C. */ | |
| 476 #define OFFS_ASSIGNIVAR_FAST 0xFFFEFEC0 | |
| 477 | |
| 478 /* Old versions of Mac OS/Darwin don't have C99 functions available. */ | |
| 111 | 479 #undef TARGET_LIBC_HAS_FUNCTION |
| 480 #define TARGET_LIBC_HAS_FUNCTION darwin_libc_has_function | |
| 0 | 481 |
| 482 /* When generating kernel code or kexts, we don't use Altivec by | |
| 483 default, as kernel code doesn't save/restore those registers. */ | |
| 484 #define OS_MISSING_ALTIVEC (flag_mkernel || flag_apple_kext) | |
| 485 | |
|
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486 /* Darwin has support for section anchors on powerpc*. |
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487 It is disabled for any section containing a "zero-sized item" (because these |
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488 are re-written as size=1 to be compatible with the OSX ld64). |
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489 The re-writing would interfere with the computation of anchor offsets. |
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490 Therefore, we place zero-sized items in their own sections and make such |
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491 sections unavailable to section anchoring. */ |
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492 |
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493 #undef TARGET_ASM_OUTPUT_ANCHOR |
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494 #define TARGET_ASM_OUTPUT_ANCHOR darwin_asm_output_anchor |
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495 |
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496 #undef TARGET_USE_ANCHORS_FOR_SYMBOL_P |
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497 #define TARGET_USE_ANCHORS_FOR_SYMBOL_P darwin_use_anchors_for_symbol_p |
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498 |
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499 #undef DARWIN_SECTION_ANCHORS |
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500 #define DARWIN_SECTION_ANCHORS 1 |
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501 |
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502 /* PPC Darwin has to rename some of the long double builtins. */ |
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503 #undef SUBTARGET_INIT_BUILTINS |
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504 #define SUBTARGET_INIT_BUILTINS \ |
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505 do { \ |
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506 darwin_patch_builtins (); \ |
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507 rs6000_builtin_decls[(unsigned) (RS6000_BUILTIN_CFSTRING)] \ |
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508 = darwin_init_cfstring_builtins ((unsigned) (RS6000_BUILTIN_CFSTRING)); \ |
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509 } while(0) |
| 111 | 510 |
| 511 /* So far, there is no rs6000_fold_builtin, if one is introduced, then | |
| 512 this will need to be modified similar to the x86 case. */ | |
| 513 #define TARGET_FOLD_BUILTIN SUBTARGET_FOLD_BUILTIN | |
| 514 | |
| 145 | 515 /* First available SYMBOL flag bit for use by subtargets. */ |
| 516 #define SYMBOL_FLAG_SUBT_DEP (SYMBOL_FLAG_MACH_DEP) | |
| 517 | |
| 111 | 518 /* Use standard DWARF numbering for DWARF debugging information. */ |
| 519 #define RS6000_USE_DWARF_NUMBERING | |
| 520 |