Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/linux64.h @ 63:b7f97abdc517 gcc-4.6-20100522
update gcc from gcc-4.5.0 to gcc-4.6
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 24 May 2010 12:47:05 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler, |
| 2 for 64 bit PowerPC linux. | |
| 3 Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, | |
|
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4 2009, 2010 Free Software Foundation, Inc. |
| 0 | 5 |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published | |
| 10 by the Free Software Foundation; either version 3, or (at your | |
| 11 option) any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 License for more details. | |
| 17 | |
| 18 Under Section 7 of GPL version 3, you are granted additional | |
| 19 permissions described in the GCC Runtime Library Exception, version | |
| 20 3.1, as published by the Free Software Foundation. | |
| 21 | |
| 22 You should have received a copy of the GNU General Public License and | |
| 23 a copy of the GCC Runtime Library Exception along with this program; | |
| 24 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 25 <http://www.gnu.org/licenses/>. */ | |
| 26 | |
| 27 #ifndef RS6000_BI_ARCH | |
| 28 | |
| 29 #undef DEFAULT_ABI | |
| 30 #define DEFAULT_ABI ABI_AIX | |
| 31 | |
| 32 #undef TARGET_64BIT | |
| 33 #define TARGET_64BIT 1 | |
| 34 | |
| 35 #define DEFAULT_ARCH64_P 1 | |
| 36 #define RS6000_BI_ARCH_P 0 | |
| 37 | |
| 38 #else | |
| 39 | |
| 40 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT) | |
| 41 #define RS6000_BI_ARCH_P 1 | |
| 42 | |
| 43 #endif | |
| 44 | |
| 45 #ifdef IN_LIBGCC2 | |
| 46 #undef TARGET_64BIT | |
| 47 #ifdef __powerpc64__ | |
| 48 #define TARGET_64BIT 1 | |
| 49 #else | |
| 50 #define TARGET_64BIT 0 | |
| 51 #endif | |
| 52 #endif | |
| 53 | |
| 54 #undef TARGET_AIX | |
| 55 #define TARGET_AIX TARGET_64BIT | |
| 56 | |
| 57 #ifdef HAVE_LD_NO_DOT_SYMS | |
| 58 /* New ABI uses a local sym for the function entry point. */ | |
| 59 extern int dot_symbols; | |
| 60 #undef DOT_SYMBOLS | |
| 61 #define DOT_SYMBOLS dot_symbols | |
| 62 #endif | |
| 63 | |
|
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64 #define TARGET_PROFILE_KERNEL profile_kernel |
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65 |
| 0 | 66 #undef PROCESSOR_DEFAULT |
| 67 #define PROCESSOR_DEFAULT PROCESSOR_POWER6 | |
| 68 #undef PROCESSOR_DEFAULT64 | |
| 69 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER6 | |
| 70 | |
| 71 /* We don't need to generate entries in .fixup, except when | |
| 72 -mrelocatable or -mrelocatable-lib is given. */ | |
| 73 #undef RELOCATABLE_NEEDS_FIXUP | |
| 74 #define RELOCATABLE_NEEDS_FIXUP \ | |
| 75 (target_flags & target_flags_explicit & MASK_RELOCATABLE) | |
| 76 | |
| 77 #undef RS6000_ABI_NAME | |
| 78 #define RS6000_ABI_NAME "linux" | |
| 79 | |
| 80 #define INVALID_64BIT "-m%s not supported in this configuration" | |
| 81 #define INVALID_32BIT INVALID_64BIT | |
| 82 | |
| 83 #undef SUBSUBTARGET_OVERRIDE_OPTIONS | |
| 84 #define SUBSUBTARGET_OVERRIDE_OPTIONS \ | |
| 85 do \ | |
| 86 { \ | |
| 87 if (!rs6000_explicit_options.alignment) \ | |
| 88 rs6000_alignment_flags = MASK_ALIGN_NATURAL; \ | |
| 89 if (TARGET_64BIT) \ | |
| 90 { \ | |
| 91 if (DEFAULT_ABI != ABI_AIX) \ | |
| 92 { \ | |
| 93 rs6000_current_abi = ABI_AIX; \ | |
| 94 error (INVALID_64BIT, "call"); \ | |
| 95 } \ | |
| 96 dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \ | |
| 97 if (target_flags & MASK_RELOCATABLE) \ | |
| 98 { \ | |
| 99 target_flags &= ~MASK_RELOCATABLE; \ | |
| 100 error (INVALID_64BIT, "relocatable"); \ | |
| 101 } \ | |
| 102 if (target_flags & MASK_EABI) \ | |
| 103 { \ | |
| 104 target_flags &= ~MASK_EABI; \ | |
| 105 error (INVALID_64BIT, "eabi"); \ | |
| 106 } \ | |
| 107 if (TARGET_PROTOTYPE) \ | |
| 108 { \ | |
|
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109 target_prototype = 0; \ |
| 0 | 110 error (INVALID_64BIT, "prototype"); \ |
| 111 } \ | |
| 112 if ((target_flags & MASK_POWERPC64) == 0) \ | |
| 113 { \ | |
| 114 target_flags |= MASK_POWERPC64; \ | |
| 115 error ("-m64 requires a PowerPC64 cpu"); \ | |
| 116 } \ | |
| 117 } \ | |
| 118 else \ | |
| 119 { \ | |
| 120 if (!RS6000_BI_ARCH_P) \ | |
| 121 error (INVALID_32BIT, "32"); \ | |
| 122 if (TARGET_PROFILE_KERNEL) \ | |
| 123 { \ | |
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124 TARGET_PROFILE_KERNEL = 0; \ |
| 0 | 125 error (INVALID_32BIT, "profile-kernel"); \ |
| 126 } \ | |
| 127 } \ | |
| 128 } \ | |
| 129 while (0) | |
| 130 | |
| 131 #ifdef RS6000_BI_ARCH | |
| 132 | |
| 133 #undef OVERRIDE_OPTIONS | |
| 134 #define OVERRIDE_OPTIONS \ | |
| 135 rs6000_override_options (((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \ | |
| 136 ? (char *) 0 : TARGET_CPU_DEFAULT) | |
| 137 | |
| 138 #endif | |
| 139 | |
| 140 #undef ASM_DEFAULT_SPEC | |
| 141 #undef ASM_SPEC | |
| 142 #undef LINK_OS_LINUX_SPEC | |
| 143 | |
|
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144 /* FIXME: This will quite possibly choose the wrong dynamic linker. */ |
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145 #undef LINK_OS_GNU_SPEC |
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146 #define LINK_OS_GNU_SPEC LINK_OS_LINUX_SPEC |
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147 |
| 0 | 148 #ifndef RS6000_BI_ARCH |
| 149 #define ASM_DEFAULT_SPEC "-mppc64" | |
| 150 #define ASM_SPEC "%(asm_spec64) %(asm_spec_common)" | |
| 151 #define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)" | |
| 152 #else | |
| 153 #if DEFAULT_ARCH64_P | |
| 154 #define ASM_DEFAULT_SPEC "-mppc%{!m32:64}" | |
| 155 #define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)" | |
| 156 #define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}" | |
| 157 #else | |
| 158 #define ASM_DEFAULT_SPEC "-mppc%{m64:64}" | |
| 159 #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)" | |
| 160 #define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}" | |
| 161 #endif | |
| 162 #endif | |
| 163 | |
| 164 #define ASM_SPEC32 "-a32 %{n} %{T} %{Ym,*} %{Yd,*} \ | |
| 165 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \ | |
|
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166 %{memb} %{!memb: %{msdata=eabi: -memb}} \ |
| 0 | 167 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ |
| 168 %{mcall-freebsd: -mbig} \ | |
| 169 %{mcall-i960-old: -mlittle} \ | |
| 170 %{mcall-linux: -mbig} \ | |
| 171 %{mcall-gnu: -mbig} \ | |
| 172 %{mcall-netbsd: -mbig} \ | |
| 173 }}}}" | |
| 174 | |
| 175 #define ASM_SPEC64 "-a64" | |
| 176 | |
| 177 #define ASM_SPEC_COMMON "%(asm_cpu) \ | |
| 178 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \ | |
| 179 %{v:-V} %{Qy:} %{!Qn:-Qy} %{Wa,*:%*} \ | |
| 180 %{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}" | |
| 181 | |
| 182 #undef SUBSUBTARGET_EXTRA_SPECS | |
| 183 #define SUBSUBTARGET_EXTRA_SPECS \ | |
| 184 { "asm_spec_common", ASM_SPEC_COMMON }, \ | |
| 185 { "asm_spec32", ASM_SPEC32 }, \ | |
| 186 { "asm_spec64", ASM_SPEC64 }, \ | |
| 187 { "link_os_linux_spec32", LINK_OS_LINUX_SPEC32 }, \ | |
| 188 { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 }, | |
| 189 | |
| 190 #undef MULTILIB_DEFAULTS | |
| 191 #if DEFAULT_ARCH64_P | |
| 192 #define MULTILIB_DEFAULTS { "m64" } | |
| 193 #else | |
| 194 #define MULTILIB_DEFAULTS { "m32" } | |
| 195 #endif | |
| 196 | |
| 197 #ifndef RS6000_BI_ARCH | |
| 198 | |
| 199 /* 64-bit PowerPC Linux is always big-endian. */ | |
| 200 #undef TARGET_LITTLE_ENDIAN | |
| 201 #define TARGET_LITTLE_ENDIAN 0 | |
| 202 | |
| 203 /* 64-bit PowerPC Linux always has a TOC. */ | |
| 204 #undef TARGET_TOC | |
| 205 #define TARGET_TOC 1 | |
| 206 | |
| 207 /* Some things from sysv4.h we don't do when 64 bit. */ | |
| 208 #undef TARGET_RELOCATABLE | |
| 209 #define TARGET_RELOCATABLE 0 | |
| 210 #undef TARGET_EABI | |
| 211 #define TARGET_EABI 0 | |
| 212 #undef TARGET_PROTOTYPE | |
| 213 #define TARGET_PROTOTYPE 0 | |
| 214 #undef RELOCATABLE_NEEDS_FIXUP | |
| 215 #define RELOCATABLE_NEEDS_FIXUP 0 | |
| 216 | |
| 217 #endif | |
| 218 | |
| 219 /* We use glibc _mcount for profiling. */ | |
| 220 #define NO_PROFILE_COUNTERS 1 | |
| 221 #define PROFILE_HOOK(LABEL) \ | |
| 222 do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0) | |
| 223 | |
| 224 /* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */ | |
| 225 #undef ADJUST_FIELD_ALIGN | |
| 226 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \ | |
| 227 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \ | |
| 228 ? 128 \ | |
| 229 : (TARGET_64BIT \ | |
| 230 && TARGET_ALIGN_NATURAL == 0 \ | |
| 231 && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode) \ | |
| 232 ? MIN ((COMPUTED), 32) \ | |
| 233 : (COMPUTED)) | |
| 234 | |
| 235 /* PowerPC64 Linux increases natural record alignment to doubleword if | |
| 236 the first field is an FP double, only if in power alignment mode. */ | |
| 237 #undef ROUND_TYPE_ALIGN | |
| 238 #define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \ | |
| 239 ((TARGET_64BIT \ | |
| 240 && (TREE_CODE (STRUCT) == RECORD_TYPE \ | |
| 241 || TREE_CODE (STRUCT) == UNION_TYPE \ | |
| 242 || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \ | |
| 243 && TARGET_ALIGN_NATURAL == 0) \ | |
| 244 ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ | |
| 245 : MAX ((COMPUTED), (SPECIFIED))) | |
| 246 | |
| 247 /* Use the default for compiling target libs. */ | |
| 248 #ifdef IN_TARGET_LIBS | |
| 249 #undef TARGET_ALIGN_NATURAL | |
| 250 #define TARGET_ALIGN_NATURAL 1 | |
| 251 #endif | |
| 252 | |
| 253 /* Indicate that jump tables go in the text section. */ | |
| 254 #undef JUMP_TABLES_IN_TEXT_SECTION | |
| 255 #define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT | |
| 256 | |
| 257 /* The linux ppc64 ABI isn't explicit on whether aggregates smaller | |
| 258 than a doubleword should be padded upward or downward. You could | |
| 259 reasonably assume that they follow the normal rules for structure | |
| 260 layout treating the parameter area as any other block of memory, | |
| 261 then map the reg param area to registers. i.e. pad upward. | |
| 262 Setting both of the following defines results in this behavior. | |
| 263 Setting just the first one will result in aggregates that fit in a | |
| 264 doubleword being padded downward, and others being padded upward. | |
| 265 Not a bad idea as this results in struct { int x; } being passed | |
| 266 the same way as an int. */ | |
| 267 #define AGGREGATE_PADDING_FIXED TARGET_64BIT | |
| 268 #define AGGREGATES_PAD_UPWARD_ALWAYS 0 | |
| 269 | |
| 270 /* Specify padding for the last element of a block move between | |
| 271 registers and memory. FIRST is nonzero if this is the only | |
| 272 element. */ | |
| 273 #define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \ | |
| 274 (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE)) | |
| 275 | |
| 276 /* __throw will restore its own return address to be the same as the | |
| 277 return address of the function that the throw is being made to. | |
| 278 This is unfortunate, because we want to check the original | |
| 279 return address to see if we need to restore the TOC. | |
| 280 So we have to squirrel it away with this. */ | |
| 281 #define SETUP_FRAME_ADDRESSES() \ | |
| 282 do { if (TARGET_64BIT) rs6000_aix_emit_builtin_unwind_init (); } while (0) | |
| 283 | |
| 284 /* Override svr4.h */ | |
| 285 #undef MD_EXEC_PREFIX | |
| 286 #undef MD_STARTFILE_PREFIX | |
| 287 | |
| 288 /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit | |
| 289 process. */ | |
| 290 #define OS_MISSING_POWERPC64 !TARGET_64BIT | |
| 291 | |
| 292 /* glibc has float and long double forms of math functions. */ | |
| 293 #undef TARGET_C99_FUNCTIONS | |
| 294 #define TARGET_C99_FUNCTIONS (OPTION_GLIBC) | |
| 295 | |
| 296 /* Whether we have sincos that follows the GNU extension. */ | |
| 297 #undef TARGET_HAS_SINCOS | |
| 298 #define TARGET_HAS_SINCOS (OPTION_GLIBC) | |
| 299 | |
| 300 #undef TARGET_OS_CPP_BUILTINS | |
| 301 #define TARGET_OS_CPP_BUILTINS() \ | |
| 302 do \ | |
| 303 { \ | |
| 304 if (TARGET_64BIT) \ | |
| 305 { \ | |
| 306 builtin_define ("__PPC__"); \ | |
| 307 builtin_define ("__PPC64__"); \ | |
| 308 builtin_define ("__powerpc__"); \ | |
| 309 builtin_define ("__powerpc64__"); \ | |
| 310 builtin_assert ("cpu=powerpc64"); \ | |
| 311 builtin_assert ("machine=powerpc64"); \ | |
| 312 } \ | |
| 313 else \ | |
| 314 { \ | |
| 315 builtin_define_std ("PPC"); \ | |
| 316 builtin_define_std ("powerpc"); \ | |
| 317 builtin_assert ("cpu=powerpc"); \ | |
| 318 builtin_assert ("machine=powerpc"); \ | |
| 319 TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
| 320 } \ | |
| 321 } \ | |
| 322 while (0) | |
| 323 | |
| 324 #undef CPP_OS_DEFAULT_SPEC | |
| 325 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)" | |
| 326 | |
| 327 /* The GNU C++ standard library currently requires _GNU_SOURCE being | |
| 328 defined on glibc-based systems. This temporary hack accomplishes this, | |
| 329 it should go away as soon as libstdc++-v3 has a real fix. */ | |
| 330 #undef CPLUSPLUS_CPP_SPEC | |
| 331 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" | |
| 332 | |
| 333 #undef LINK_SHLIB_SPEC | |
| 334 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}" | |
| 335 | |
| 336 #undef LIB_DEFAULT_SPEC | |
| 337 #define LIB_DEFAULT_SPEC "%(lib_linux)" | |
| 338 | |
| 339 #undef STARTFILE_DEFAULT_SPEC | |
| 340 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" | |
| 341 | |
| 342 #undef ENDFILE_DEFAULT_SPEC | |
| 343 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" | |
| 344 | |
| 345 #undef LINK_START_DEFAULT_SPEC | |
| 346 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
| 347 | |
| 348 #undef LINK_OS_DEFAULT_SPEC | |
| 349 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
| 350 | |
| 351 #define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1" | |
| 352 #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1" | |
| 353 #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" | |
| 354 #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" | |
| 355 #if UCLIBC_DEFAULT | |
| 356 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}" | |
| 357 #else | |
| 358 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}" | |
| 359 #endif | |
| 360 #define LINUX_DYNAMIC_LINKER32 \ | |
| 361 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32) | |
| 362 #define LINUX_DYNAMIC_LINKER64 \ | |
| 363 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64) | |
| 364 | |
| 365 | |
| 366 #define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \ | |
| 367 %{rdynamic:-export-dynamic} \ | |
| 368 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER32 "}}}" | |
| 369 | |
| 370 #define LINK_OS_LINUX_SPEC64 "-m elf64ppc %{!shared: %{!static: \ | |
| 371 %{rdynamic:-export-dynamic} \ | |
| 372 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER64 "}}}" | |
| 373 | |
| 374 #undef TOC_SECTION_ASM_OP | |
| 375 #define TOC_SECTION_ASM_OP \ | |
| 376 (TARGET_64BIT \ | |
| 377 ? "\t.section\t\".toc\",\"aw\"" \ | |
| 378 : "\t.section\t\".got\",\"aw\"") | |
| 379 | |
| 380 #undef MINIMAL_TOC_SECTION_ASM_OP | |
| 381 #define MINIMAL_TOC_SECTION_ASM_OP \ | |
| 382 (TARGET_64BIT \ | |
| 383 ? "\t.section\t\".toc1\",\"aw\"" \ | |
| 384 : ((TARGET_RELOCATABLE || flag_pic) \ | |
| 385 ? "\t.section\t\".got2\",\"aw\"" \ | |
| 386 : "\t.section\t\".got1\",\"aw\"")) | |
| 387 | |
| 388 #undef TARGET_VERSION | |
| 389 #define TARGET_VERSION fprintf (stderr, " (PowerPC64 GNU/Linux)"); | |
| 390 | |
| 391 /* Must be at least as big as our pointer type. */ | |
| 392 #undef SIZE_TYPE | |
| 393 #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") | |
| 394 | |
| 395 #undef PTRDIFF_TYPE | |
| 396 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") | |
| 397 | |
| 398 #undef WCHAR_TYPE | |
| 399 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int") | |
| 400 #undef WCHAR_TYPE_SIZE | |
| 401 #define WCHAR_TYPE_SIZE 32 | |
| 402 | |
| 403 /* Override rs6000.h definition. */ | |
| 404 #undef ASM_APP_ON | |
| 405 #define ASM_APP_ON "#APP\n" | |
| 406 | |
| 407 /* Override rs6000.h definition. */ | |
| 408 #undef ASM_APP_OFF | |
| 409 #define ASM_APP_OFF "#NO_APP\n" | |
| 410 | |
| 411 /* PowerPC no-op instruction. */ | |
| 412 #undef RS6000_CALL_GLUE | |
| 413 #define RS6000_CALL_GLUE (TARGET_64BIT ? "nop" : "cror 31,31,31") | |
| 414 | |
| 415 #undef RS6000_MCOUNT | |
| 416 #define RS6000_MCOUNT "_mcount" | |
| 417 | |
| 418 #ifdef __powerpc64__ | |
| 419 /* _init and _fini functions are built from bits spread across many | |
| 420 object files, each potentially with a different TOC pointer. For | |
| 421 that reason, place a nop after the call so that the linker can | |
| 422 restore the TOC pointer if a TOC adjusting call stub is needed. */ | |
| 423 #if DOT_SYMBOLS | |
| 424 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ | |
| 425 asm (SECTION_OP "\n" \ | |
| 426 " bl ." #FUNC "\n" \ | |
| 427 " nop\n" \ | |
| 428 " .previous"); | |
| 429 #else | |
| 430 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ | |
| 431 asm (SECTION_OP "\n" \ | |
| 432 " bl " #FUNC "\n" \ | |
| 433 " nop\n" \ | |
| 434 " .previous"); | |
| 435 #endif | |
| 436 #endif | |
| 437 | |
| 438 /* FP save and restore routines. */ | |
| 439 #undef SAVE_FP_PREFIX | |
| 440 #define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_") | |
| 441 #undef SAVE_FP_SUFFIX | |
|
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442 #define SAVE_FP_SUFFIX "" |
| 0 | 443 #undef RESTORE_FP_PREFIX |
| 444 #define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_") | |
| 445 #undef RESTORE_FP_SUFFIX | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
446 #define RESTORE_FP_SUFFIX "" |
| 0 | 447 |
| 448 /* Dwarf2 debugging. */ | |
| 449 #undef PREFERRED_DEBUGGING_TYPE | |
| 450 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
| 451 | |
| 452 /* This is how to declare the size of a function. */ | |
| 453 #undef ASM_DECLARE_FUNCTION_SIZE | |
| 454 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ | |
| 455 do \ | |
| 456 { \ | |
| 457 if (!flag_inhibit_size_directive) \ | |
| 458 { \ | |
| 459 fputs ("\t.size\t", (FILE)); \ | |
| 460 if (TARGET_64BIT && DOT_SYMBOLS) \ | |
| 461 putc ('.', (FILE)); \ | |
| 462 assemble_name ((FILE), (FNAME)); \ | |
| 463 fputs (",.-", (FILE)); \ | |
| 464 rs6000_output_function_entry (FILE, FNAME); \ | |
| 465 putc ('\n', (FILE)); \ | |
| 466 } \ | |
| 467 } \ | |
| 468 while (0) | |
| 469 | |
| 470 /* Return nonzero if this entry is to be written into the constant | |
| 471 pool in a special way. We do so if this is a SYMBOL_REF, LABEL_REF | |
| 472 or a CONST containing one of them. If -mfp-in-toc (the default), | |
| 473 we also do this for floating-point constants. We actually can only | |
| 474 do this if the FP formats of the target and host machines are the | |
| 475 same, but we can't check that since not every file that uses | |
|
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
476 the macros includes real.h. We also do this when we can write the |
|
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
477 entry into the TOC and the entry is not larger than a TOC entry. */ |
| 0 | 478 |
| 479 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P | |
| 480 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \ | |
| 481 (TARGET_TOC \ | |
| 482 && (GET_CODE (X) == SYMBOL_REF \ | |
| 483 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \ | |
| 484 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \ | |
| 485 || GET_CODE (X) == LABEL_REF \ | |
| 486 || (GET_CODE (X) == CONST_INT \ | |
| 487 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \ | |
| 488 || (GET_CODE (X) == CONST_DOUBLE \ | |
| 489 && ((TARGET_64BIT \ | |
| 490 && (TARGET_MINIMAL_TOC \ | |
| 491 || (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ | |
| 492 && ! TARGET_NO_FP_IN_TOC))) \ | |
| 493 || (!TARGET_64BIT \ | |
| 494 && !TARGET_NO_FP_IN_TOC \ | |
| 495 && !TARGET_RELOCATABLE \ | |
| 496 && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ | |
| 497 && BITS_PER_WORD == HOST_BITS_PER_INT))))) | |
| 498 | |
| 499 /* Select a format to encode pointers in exception handling data. CODE | |
| 500 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is | |
| 501 true if the symbol may be affected by dynamic relocations. */ | |
| 502 #undef ASM_PREFERRED_EH_DATA_FORMAT | |
| 503 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ | |
| 504 ((TARGET_64BIT || flag_pic || TARGET_RELOCATABLE) \ | |
| 505 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \ | |
| 506 | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \ | |
| 507 : DW_EH_PE_absptr) | |
| 508 | |
| 509 /* For backward compatibility, we must continue to use the AIX | |
| 510 structure return convention. */ | |
| 511 #undef DRAFT_V4_STRUCT_RET | |
| 512 #define DRAFT_V4_STRUCT_RET (!TARGET_64BIT) | |
| 513 | |
| 514 #define TARGET_ASM_FILE_END rs6000_elf_end_indicate_exec_stack | |
| 515 | |
| 516 #define TARGET_POSIX_IO | |
| 517 | |
| 518 #define LINK_GCC_C_SEQUENCE_SPEC \ | |
| 519 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
| 520 | |
| 521 /* Use --as-needed -lgcc_s for eh support. */ | |
| 522 #ifdef HAVE_LD_AS_NEEDED | |
| 523 #define USE_LD_AS_NEEDED 1 | |
| 524 #endif | |
| 525 | |
| 526 #define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h" | |
| 527 | |
| 528 #ifdef TARGET_LIBC_PROVIDES_SSP | |
| 529 /* ppc32 glibc provides __stack_chk_guard in -0x7008(2), | |
| 530 ppc64 glibc provides it at -0x7010(13). */ | |
| 531 #define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? -0x7010 : -0x7008) | |
| 532 #endif | |
| 533 | |
| 534 #define POWERPC_LINUX | |
| 535 | |
| 536 /* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */ | |
| 537 #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 | |
| 538 #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
| 539 #endif |