Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/linux64.h @ 111:04ced10e8804
gcc 7
| author | kono |
|---|---|
| date | Fri, 27 Oct 2017 22:46:09 +0900 |
| parents | f6334be47118 |
| children | 84e7813d76e9 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of target machine for GNU compiler, |
| 2 for 64 bit PowerPC linux. | |
| 111 | 3 Copyright (C) 2000-2017 Free Software Foundation, Inc. |
| 0 | 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 Under Section 7 of GPL version 3, you are granted additional | |
| 18 permissions described in the GCC Runtime Library Exception, version | |
| 19 3.1, as published by the Free Software Foundation. | |
| 20 | |
| 21 You should have received a copy of the GNU General Public License and | |
| 22 a copy of the GCC Runtime Library Exception along with this program; | |
| 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 24 <http://www.gnu.org/licenses/>. */ | |
| 25 | |
| 26 #ifndef RS6000_BI_ARCH | |
| 27 | |
| 28 #undef TARGET_64BIT | |
| 29 #define TARGET_64BIT 1 | |
| 30 | |
| 31 #define DEFAULT_ARCH64_P 1 | |
| 32 #define RS6000_BI_ARCH_P 0 | |
| 33 | |
| 34 #else | |
| 35 | |
| 36 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT) | |
| 37 #define RS6000_BI_ARCH_P 1 | |
| 38 | |
| 39 #endif | |
| 40 | |
| 41 #ifdef IN_LIBGCC2 | |
| 42 #undef TARGET_64BIT | |
| 43 #ifdef __powerpc64__ | |
| 44 #define TARGET_64BIT 1 | |
| 45 #else | |
| 46 #define TARGET_64BIT 0 | |
| 47 #endif | |
| 48 #endif | |
| 49 | |
| 50 #undef TARGET_AIX | |
| 51 #define TARGET_AIX TARGET_64BIT | |
| 52 | |
| 53 #ifdef HAVE_LD_NO_DOT_SYMS | |
| 54 /* New ABI uses a local sym for the function entry point. */ | |
| 55 extern int dot_symbols; | |
| 56 #undef DOT_SYMBOLS | |
| 57 #define DOT_SYMBOLS dot_symbols | |
| 58 #endif | |
| 59 | |
|
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60 #define TARGET_PROFILE_KERNEL profile_kernel |
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61 |
| 111 | 62 #undef TARGET_KEEP_LEAF_WHEN_PROFILED |
| 63 #define TARGET_KEEP_LEAF_WHEN_PROFILED rs6000_keep_leaf_when_profiled | |
| 64 | |
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65 #define TARGET_USES_LINUX64_OPT 1 |
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66 #ifdef HAVE_LD_LARGE_TOC |
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67 #undef TARGET_CMODEL |
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68 #define TARGET_CMODEL rs6000_current_cmodel |
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69 #define SET_CMODEL(opt) rs6000_current_cmodel = opt |
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70 #else |
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71 #define SET_CMODEL(opt) do {} while (0) |
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72 #endif |
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73 |
| 0 | 74 #undef PROCESSOR_DEFAULT |
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75 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 |
| 0 | 76 #undef PROCESSOR_DEFAULT64 |
| 111 | 77 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER8 |
| 0 | 78 |
| 79 /* We don't need to generate entries in .fixup, except when | |
| 80 -mrelocatable or -mrelocatable-lib is given. */ | |
| 81 #undef RELOCATABLE_NEEDS_FIXUP | |
| 82 #define RELOCATABLE_NEEDS_FIXUP \ | |
| 111 | 83 (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE) |
| 0 | 84 |
| 85 #undef RS6000_ABI_NAME | |
| 86 #define RS6000_ABI_NAME "linux" | |
| 87 | |
| 111 | 88 #define INVALID_64BIT "%<-m%s%> not supported in this configuration" |
| 0 | 89 #define INVALID_32BIT INVALID_64BIT |
| 90 | |
| 111 | 91 #ifdef LINUX64_DEFAULT_ABI_ELFv2 |
| 92 #define ELFv2_ABI_CHECK (rs6000_elf_abi != 1) | |
| 93 #else | |
| 94 #define ELFv2_ABI_CHECK (rs6000_elf_abi == 2) | |
| 95 #endif | |
| 96 | |
| 0 | 97 #undef SUBSUBTARGET_OVERRIDE_OPTIONS |
| 98 #define SUBSUBTARGET_OVERRIDE_OPTIONS \ | |
| 99 do \ | |
| 100 { \ | |
| 111 | 101 if (!global_options_set.x_rs6000_alignment_flags) \ |
| 0 | 102 rs6000_alignment_flags = MASK_ALIGN_NATURAL; \ |
| 111 | 103 if (rs6000_isa_flags & OPTION_MASK_64BIT) \ |
| 0 | 104 { \ |
| 105 if (DEFAULT_ABI != ABI_AIX) \ | |
| 106 { \ | |
| 107 rs6000_current_abi = ABI_AIX; \ | |
| 108 error (INVALID_64BIT, "call"); \ | |
| 109 } \ | |
| 110 dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \ | |
| 111 | 111 if (ELFv2_ABI_CHECK) \ |
| 0 | 112 { \ |
| 111 | 113 rs6000_current_abi = ABI_ELFv2; \ |
| 114 if (dot_symbols) \ | |
| 115 error ("-mcall-aixdesc incompatible with -mabi=elfv2"); \ | |
| 116 } \ | |
| 117 if (rs6000_isa_flags & OPTION_MASK_RELOCATABLE) \ | |
| 118 { \ | |
| 119 rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \ | |
| 0 | 120 error (INVALID_64BIT, "relocatable"); \ |
| 121 } \ | |
| 111 | 122 if (rs6000_isa_flags & OPTION_MASK_EABI) \ |
| 0 | 123 { \ |
| 111 | 124 rs6000_isa_flags &= ~OPTION_MASK_EABI; \ |
| 0 | 125 error (INVALID_64BIT, "eabi"); \ |
| 126 } \ | |
| 127 if (TARGET_PROTOTYPE) \ | |
| 128 { \ | |
|
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129 target_prototype = 0; \ |
| 0 | 130 error (INVALID_64BIT, "prototype"); \ |
| 131 } \ | |
| 111 | 132 if ((rs6000_isa_flags & OPTION_MASK_POWERPC64) == 0) \ |
| 0 | 133 { \ |
| 111 | 134 rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ |
| 0 | 135 error ("-m64 requires a PowerPC64 cpu"); \ |
| 136 } \ | |
| 111 | 137 if ((rs6000_isa_flags_explicit \ |
| 138 & OPTION_MASK_MINIMAL_TOC) != 0) \ | |
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139 { \ |
| 111 | 140 if (global_options_set.x_rs6000_current_cmodel \ |
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141 && rs6000_current_cmodel != CMODEL_SMALL) \ |
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142 error ("-mcmodel incompatible with other toc options"); \ |
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143 SET_CMODEL (CMODEL_SMALL); \ |
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144 } \ |
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145 else \ |
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146 { \ |
| 111 | 147 if (!global_options_set.x_rs6000_current_cmodel) \ |
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148 SET_CMODEL (CMODEL_MEDIUM); \ |
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149 if (rs6000_current_cmodel != CMODEL_SMALL) \ |
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150 { \ |
| 111 | 151 if (!global_options_set.x_TARGET_NO_FP_IN_TOC) \ |
| 152 TARGET_NO_FP_IN_TOC \ | |
| 153 = rs6000_current_cmodel == CMODEL_MEDIUM; \ | |
| 154 if (!global_options_set.x_TARGET_NO_SUM_IN_TOC) \ | |
| 155 TARGET_NO_SUM_IN_TOC = 0; \ | |
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156 } \ |
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157 } \ |
| 0 | 158 } \ |
| 159 else \ | |
| 160 { \ | |
| 161 if (!RS6000_BI_ARCH_P) \ | |
| 162 error (INVALID_32BIT, "32"); \ | |
| 163 if (TARGET_PROFILE_KERNEL) \ | |
| 164 { \ | |
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165 TARGET_PROFILE_KERNEL = 0; \ |
| 0 | 166 error (INVALID_32BIT, "profile-kernel"); \ |
| 167 } \ | |
| 111 | 168 if (global_options_set.x_rs6000_current_cmodel) \ |
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169 { \ |
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170 SET_CMODEL (CMODEL_SMALL); \ |
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171 error (INVALID_32BIT, "cmodel"); \ |
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172 } \ |
| 0 | 173 } \ |
| 174 } \ | |
| 175 while (0) | |
| 176 | |
| 177 #undef ASM_DEFAULT_SPEC | |
| 178 #undef ASM_SPEC | |
| 179 #undef LINK_OS_LINUX_SPEC | |
| 111 | 180 #undef LINK_SECURE_PLT_SPEC |
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181 |
| 0 | 182 #ifndef RS6000_BI_ARCH |
| 183 #define ASM_DEFAULT_SPEC "-mppc64" | |
| 184 #define ASM_SPEC "%(asm_spec64) %(asm_spec_common)" | |
| 185 #define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)" | |
| 111 | 186 #define LINK_SECURE_PLT_SPEC "" |
| 0 | 187 #else |
| 188 #if DEFAULT_ARCH64_P | |
| 189 #define ASM_DEFAULT_SPEC "-mppc%{!m32:64}" | |
| 190 #define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)" | |
| 191 #define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}" | |
| 111 | 192 #define LINK_SECURE_PLT_SPEC "%{m32: " LINK_SECURE_PLT_DEFAULT_SPEC "}" |
| 0 | 193 #else |
| 194 #define ASM_DEFAULT_SPEC "-mppc%{m64:64}" | |
| 195 #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)" | |
| 196 #define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}" | |
| 111 | 197 #define LINK_SECURE_PLT_SPEC "%{!m64: " LINK_SECURE_PLT_DEFAULT_SPEC "}" |
| 0 | 198 #endif |
| 199 #endif | |
| 200 | |
|
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201 #define ASM_SPEC32 "-a32 \ |
| 111 | 202 %{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \ |
| 203 %{memb|msdata=eabi: -memb}" | |
| 0 | 204 |
| 205 #define ASM_SPEC64 "-a64" | |
| 206 | |
| 207 #define ASM_SPEC_COMMON "%(asm_cpu) \ | |
| 111 | 208 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}" \ |
| 209 ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) | |
| 0 | 210 |
| 211 #undef SUBSUBTARGET_EXTRA_SPECS | |
| 212 #define SUBSUBTARGET_EXTRA_SPECS \ | |
| 213 { "asm_spec_common", ASM_SPEC_COMMON }, \ | |
| 214 { "asm_spec32", ASM_SPEC32 }, \ | |
| 215 { "asm_spec64", ASM_SPEC64 }, \ | |
| 216 { "link_os_linux_spec32", LINK_OS_LINUX_SPEC32 }, \ | |
| 111 | 217 { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 }, \ |
| 218 { "link_os_extra_spec32", LINK_OS_EXTRA_SPEC32 }, \ | |
| 219 { "link_os_extra_spec64", LINK_OS_EXTRA_SPEC64 }, \ | |
| 220 { "link_os_new_dtags", LINK_OS_NEW_DTAGS_SPEC }, \ | |
| 221 { "include_extra", INCLUDE_EXTRA_SPEC }, \ | |
| 222 { "dynamic_linker_prefix", DYNAMIC_LINKER_PREFIX }, | |
| 223 | |
| 224 /* Optional specs used for overriding the system include directory, default | |
| 225 -rpath links, and prefix for the dynamic linker. Normally, there are not | |
| 226 defined, but if the user configure with the --with-advance-toolchain=<xxx> | |
| 227 option, the advance-toolchain.h file will override these. */ | |
| 228 #ifndef INCLUDE_EXTRA_SPEC | |
| 229 #define INCLUDE_EXTRA_SPEC "" | |
| 230 #endif | |
| 231 | |
| 232 #ifndef LINK_OS_EXTRA_SPEC32 | |
| 233 #define LINK_OS_EXTRA_SPEC32 "" | |
| 234 #endif | |
| 235 | |
| 236 #ifndef LINK_OS_EXTRA_SPEC64 | |
| 237 #define LINK_OS_EXTRA_SPEC64 "" | |
| 238 #endif | |
| 239 | |
| 240 #ifndef LINK_OS_NEW_DTAGS_SPEC | |
| 241 #define LINK_OS_NEW_DTAGS_SPEC "" | |
| 242 #endif | |
| 243 | |
| 244 #ifndef DYNAMIC_LINKER_PREFIX | |
| 245 #define DYNAMIC_LINKER_PREFIX "" | |
| 246 #endif | |
| 0 | 247 |
| 248 #undef MULTILIB_DEFAULTS | |
| 249 #if DEFAULT_ARCH64_P | |
| 250 #define MULTILIB_DEFAULTS { "m64" } | |
| 251 #else | |
| 252 #define MULTILIB_DEFAULTS { "m32" } | |
| 253 #endif | |
| 254 | |
| 111 | 255 /* Split stack is only supported for 64 bit, and requires glibc >= 2.18. */ |
| 256 #if TARGET_GLIBC_MAJOR * 1000 + TARGET_GLIBC_MINOR >= 2018 | |
| 257 # ifndef RS6000_BI_ARCH | |
| 258 # define TARGET_CAN_SPLIT_STACK | |
| 259 # else | |
| 260 # if DEFAULT_ARCH64_P | |
| 261 /* Supported, and the default is -m64 */ | |
| 262 # define TARGET_CAN_SPLIT_STACK_64BIT 1 | |
| 263 # else | |
| 264 /* Supported, and the default is -m32 */ | |
| 265 # define TARGET_CAN_SPLIT_STACK_64BIT 0 | |
| 266 # endif | |
| 267 # endif | |
| 268 #endif | |
| 0 | 269 |
| 111 | 270 #ifndef RS6000_BI_ARCH |
| 0 | 271 |
| 272 /* 64-bit PowerPC Linux always has a TOC. */ | |
| 273 #undef TARGET_TOC | |
| 274 #define TARGET_TOC 1 | |
| 275 | |
| 276 /* Some things from sysv4.h we don't do when 64 bit. */ | |
| 111 | 277 #undef OPTION_RELOCATABLE |
| 278 #define OPTION_RELOCATABLE 0 | |
| 279 #undef OPTION_EABI | |
| 280 #define OPTION_EABI 0 | |
| 281 #undef OPTION_PROTOTYPE | |
| 282 #define OPTION_PROTOTYPE 0 | |
| 0 | 283 #undef RELOCATABLE_NEEDS_FIXUP |
| 284 #define RELOCATABLE_NEEDS_FIXUP 0 | |
| 285 | |
| 286 #endif | |
| 287 | |
| 288 /* We use glibc _mcount for profiling. */ | |
| 289 #define NO_PROFILE_COUNTERS 1 | |
| 290 #define PROFILE_HOOK(LABEL) \ | |
| 291 do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0) | |
| 292 | |
| 293 /* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */ | |
| 294 #undef ADJUST_FIELD_ALIGN | |
| 111 | 295 #define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \ |
| 296 (rs6000_special_adjust_field_align_p ((TYPE), (COMPUTED)) \ | |
| 0 | 297 ? 128 \ |
| 298 : (TARGET_64BIT \ | |
| 299 && TARGET_ALIGN_NATURAL == 0 \ | |
| 111 | 300 && TYPE_MODE (strip_array_types (TYPE)) == DFmode) \ |
| 0 | 301 ? MIN ((COMPUTED), 32) \ |
| 302 : (COMPUTED)) | |
| 303 | |
| 304 /* PowerPC64 Linux increases natural record alignment to doubleword if | |
| 305 the first field is an FP double, only if in power alignment mode. */ | |
| 306 #undef ROUND_TYPE_ALIGN | |
| 307 #define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \ | |
| 308 ((TARGET_64BIT \ | |
| 309 && (TREE_CODE (STRUCT) == RECORD_TYPE \ | |
| 310 || TREE_CODE (STRUCT) == UNION_TYPE \ | |
| 311 || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \ | |
| 312 && TARGET_ALIGN_NATURAL == 0) \ | |
| 313 ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ | |
| 314 : MAX ((COMPUTED), (SPECIFIED))) | |
| 315 | |
| 316 /* Use the default for compiling target libs. */ | |
| 317 #ifdef IN_TARGET_LIBS | |
| 318 #undef TARGET_ALIGN_NATURAL | |
| 319 #define TARGET_ALIGN_NATURAL 1 | |
| 320 #endif | |
| 321 | |
| 322 /* Indicate that jump tables go in the text section. */ | |
| 323 #undef JUMP_TABLES_IN_TEXT_SECTION | |
| 324 #define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT | |
| 325 | |
| 326 /* The linux ppc64 ABI isn't explicit on whether aggregates smaller | |
| 327 than a doubleword should be padded upward or downward. You could | |
| 328 reasonably assume that they follow the normal rules for structure | |
| 329 layout treating the parameter area as any other block of memory, | |
| 330 then map the reg param area to registers. i.e. pad upward. | |
| 331 Setting both of the following defines results in this behavior. | |
| 332 Setting just the first one will result in aggregates that fit in a | |
| 333 doubleword being padded downward, and others being padded upward. | |
| 334 Not a bad idea as this results in struct { int x; } being passed | |
| 335 the same way as an int. */ | |
| 336 #define AGGREGATE_PADDING_FIXED TARGET_64BIT | |
| 337 #define AGGREGATES_PAD_UPWARD_ALWAYS 0 | |
| 338 | |
| 339 /* Specify padding for the last element of a block move between | |
| 340 registers and memory. FIRST is nonzero if this is the only | |
| 341 element. */ | |
| 342 #define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \ | |
| 111 | 343 (!(FIRST) ? PAD_UPWARD : targetm.calls.function_arg_padding (MODE, TYPE)) |
| 0 | 344 |
| 345 /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit | |
| 346 process. */ | |
| 347 #define OS_MISSING_POWERPC64 !TARGET_64BIT | |
| 348 | |
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349 #ifdef SINGLE_LIBC |
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350 #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) |
| 111 | 351 #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) |
| 352 #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) | |
| 353 #undef OPTION_MUSL | |
| 354 #define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL) | |
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355 #else |
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356 #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
| 111 | 357 #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) |
| 358 #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) | |
| 359 #undef OPTION_MUSL | |
| 360 #define OPTION_MUSL (linux_libc == LIBC_MUSL) | |
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361 #endif |
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362 |
| 111 | 363 /* Determine what functions are present at the runtime; |
| 364 this includes full c99 runtime and sincos. */ | |
| 365 #undef TARGET_LIBC_HAS_FUNCTION | |
| 366 #define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function | |
| 0 | 367 |
| 368 #undef TARGET_OS_CPP_BUILTINS | |
| 369 #define TARGET_OS_CPP_BUILTINS() \ | |
| 370 do \ | |
| 371 { \ | |
| 372 if (TARGET_64BIT) \ | |
| 373 { \ | |
| 374 builtin_define ("__PPC__"); \ | |
| 375 builtin_define ("__PPC64__"); \ | |
| 376 builtin_define ("__powerpc__"); \ | |
| 377 builtin_define ("__powerpc64__"); \ | |
| 111 | 378 if (!DOT_SYMBOLS) \ |
| 379 builtin_define ("_CALL_LINUX"); \ | |
| 0 | 380 builtin_assert ("cpu=powerpc64"); \ |
| 381 builtin_assert ("machine=powerpc64"); \ | |
| 382 } \ | |
| 383 else \ | |
| 384 { \ | |
| 385 builtin_define_std ("PPC"); \ | |
| 386 builtin_define_std ("powerpc"); \ | |
| 387 builtin_assert ("cpu=powerpc"); \ | |
| 388 builtin_assert ("machine=powerpc"); \ | |
| 389 TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
| 390 } \ | |
| 391 } \ | |
| 392 while (0) | |
| 393 | |
| 394 #undef CPP_OS_DEFAULT_SPEC | |
| 111 | 395 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux) %(include_extra)" |
| 0 | 396 |
| 397 #undef LINK_SHLIB_SPEC | |
| 111 | 398 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}} \ |
| 399 %{static-pie:-static -pie --no-dynamic-linker -z text}" | |
| 0 | 400 |
| 401 #undef LIB_DEFAULT_SPEC | |
| 402 #define LIB_DEFAULT_SPEC "%(lib_linux)" | |
| 403 | |
| 404 #undef STARTFILE_DEFAULT_SPEC | |
| 405 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" | |
| 406 | |
| 407 #undef ENDFILE_DEFAULT_SPEC | |
| 408 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" | |
| 409 | |
| 410 #undef LINK_START_DEFAULT_SPEC | |
| 411 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
| 412 | |
| 413 #undef LINK_OS_DEFAULT_SPEC | |
| 414 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
| 415 | |
| 111 | 416 #define GLIBC_DYNAMIC_LINKER32 "%(dynamic_linker_prefix)/lib/ld.so.1" |
| 417 | |
| 418 #ifdef LINUX64_DEFAULT_ABI_ELFv2 | |
| 419 #define GLIBC_DYNAMIC_LINKER64 \ | |
| 420 "%{mabi=elfv1:%(dynamic_linker_prefix)/lib64/ld64.so.1;" \ | |
| 421 ":%(dynamic_linker_prefix)/lib64/ld64.so.2}" | |
| 422 #else | |
| 423 #define GLIBC_DYNAMIC_LINKER64 \ | |
| 424 "%{mabi=elfv2:%(dynamic_linker_prefix)/lib64/ld64.so.2;" \ | |
| 425 ":%(dynamic_linker_prefix)/lib64/ld64.so.1}" | |
| 426 #endif | |
| 427 | |
| 428 #define MUSL_DYNAMIC_LINKER32 \ | |
| 429 "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1" | |
| 430 #define MUSL_DYNAMIC_LINKER64 \ | |
| 431 "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1" | |
| 432 | |
| 0 | 433 #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" |
| 434 #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" | |
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435 #if DEFAULT_LIBC == LIBC_UCLIBC |
| 111 | 436 #define CHOOSE_DYNAMIC_LINKER(G, U, M) \ |
| 437 "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}" | |
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438 #elif DEFAULT_LIBC == LIBC_GLIBC |
| 111 | 439 #define CHOOSE_DYNAMIC_LINKER(G, U, M) \ |
| 440 "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}" | |
| 441 #elif DEFAULT_LIBC == LIBC_MUSL | |
| 442 #define CHOOSE_DYNAMIC_LINKER(G, U, M) \ | |
| 443 "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}" | |
| 0 | 444 #else |
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445 #error "Unsupported DEFAULT_LIBC" |
| 0 | 446 #endif |
| 111 | 447 #define GNU_USER_DYNAMIC_LINKER32 \ |
| 448 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \ | |
| 449 MUSL_DYNAMIC_LINKER32) | |
| 450 #define GNU_USER_DYNAMIC_LINKER64 \ | |
| 451 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \ | |
| 452 MUSL_DYNAMIC_LINKER64) | |
| 0 | 453 |
| 111 | 454 #undef DEFAULT_ASM_ENDIAN |
| 455 #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) | |
| 456 #define DEFAULT_ASM_ENDIAN " -mlittle" | |
| 457 #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ | |
| 458 " -m elf32lppclinux", \ | |
| 459 " -m elf32lppclinux") | |
| 460 #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ | |
| 461 " -m elf64lppc", \ | |
| 462 " -m elf64lppc") | |
| 463 #else | |
| 464 #define DEFAULT_ASM_ENDIAN " -mbig" | |
| 465 #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ | |
| 466 " -m elf32lppclinux", \ | |
| 467 " -m elf32ppclinux") | |
| 468 #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ | |
| 469 " -m elf64lppc", \ | |
| 470 " -m elf64ppc") | |
| 471 #endif | |
| 0 | 472 |
| 111 | 473 #define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \ |
| 474 %{!static-pie: \ | |
| 475 %{rdynamic:-export-dynamic} \ | |
| 476 -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \ | |
| 477 %(link_os_extra_spec32)" | |
| 478 | |
| 479 #define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \ | |
| 480 %{!static-pie: \ | |
| 481 %{rdynamic:-export-dynamic} \ | |
| 482 -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \ | |
| 483 %(link_os_extra_spec64)" | |
| 0 | 484 |
| 485 #undef TOC_SECTION_ASM_OP | |
| 486 #define TOC_SECTION_ASM_OP \ | |
| 487 (TARGET_64BIT \ | |
| 488 ? "\t.section\t\".toc\",\"aw\"" \ | |
| 489 : "\t.section\t\".got\",\"aw\"") | |
| 490 | |
| 491 #undef MINIMAL_TOC_SECTION_ASM_OP | |
| 492 #define MINIMAL_TOC_SECTION_ASM_OP \ | |
| 493 (TARGET_64BIT \ | |
| 494 ? "\t.section\t\".toc1\",\"aw\"" \ | |
| 111 | 495 : (flag_pic \ |
| 0 | 496 ? "\t.section\t\".got2\",\"aw\"" \ |
| 497 : "\t.section\t\".got1\",\"aw\"")) | |
| 498 | |
| 499 /* Must be at least as big as our pointer type. */ | |
| 500 #undef SIZE_TYPE | |
| 501 #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") | |
| 502 | |
| 503 #undef PTRDIFF_TYPE | |
| 504 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") | |
| 505 | |
| 506 #undef WCHAR_TYPE | |
| 507 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int") | |
| 508 #undef WCHAR_TYPE_SIZE | |
| 509 #define WCHAR_TYPE_SIZE 32 | |
| 510 | |
| 511 #undef RS6000_MCOUNT | |
| 512 #define RS6000_MCOUNT "_mcount" | |
| 513 | |
| 514 #ifdef __powerpc64__ | |
| 515 /* _init and _fini functions are built from bits spread across many | |
| 516 object files, each potentially with a different TOC pointer. For | |
| 517 that reason, place a nop after the call so that the linker can | |
| 518 restore the TOC pointer if a TOC adjusting call stub is needed. */ | |
| 519 #if DOT_SYMBOLS | |
| 520 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ | |
| 521 asm (SECTION_OP "\n" \ | |
| 522 " bl ." #FUNC "\n" \ | |
| 523 " nop\n" \ | |
| 524 " .previous"); | |
| 525 #else | |
| 526 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ | |
| 527 asm (SECTION_OP "\n" \ | |
| 528 " bl " #FUNC "\n" \ | |
| 529 " nop\n" \ | |
| 530 " .previous"); | |
| 531 #endif | |
| 532 #endif | |
| 533 | |
| 534 /* FP save and restore routines. */ | |
| 535 #undef SAVE_FP_PREFIX | |
| 536 #define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_") | |
| 537 #undef SAVE_FP_SUFFIX | |
|
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538 #define SAVE_FP_SUFFIX "" |
| 0 | 539 #undef RESTORE_FP_PREFIX |
| 540 #define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_") | |
| 541 #undef RESTORE_FP_SUFFIX | |
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542 #define RESTORE_FP_SUFFIX "" |
| 0 | 543 |
| 544 /* Dwarf2 debugging. */ | |
| 545 #undef PREFERRED_DEBUGGING_TYPE | |
| 546 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
| 547 | |
| 548 /* This is how to declare the size of a function. */ | |
| 549 #undef ASM_DECLARE_FUNCTION_SIZE | |
| 550 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ | |
| 551 do \ | |
| 552 { \ | |
| 553 if (!flag_inhibit_size_directive) \ | |
| 554 { \ | |
| 555 fputs ("\t.size\t", (FILE)); \ | |
| 556 if (TARGET_64BIT && DOT_SYMBOLS) \ | |
| 557 putc ('.', (FILE)); \ | |
| 558 assemble_name ((FILE), (FNAME)); \ | |
| 559 fputs (",.-", (FILE)); \ | |
| 560 rs6000_output_function_entry (FILE, FNAME); \ | |
| 561 putc ('\n', (FILE)); \ | |
| 562 } \ | |
| 563 } \ | |
| 564 while (0) | |
| 565 | |
| 566 /* Return nonzero if this entry is to be written into the constant | |
| 567 pool in a special way. We do so if this is a SYMBOL_REF, LABEL_REF | |
| 568 or a CONST containing one of them. If -mfp-in-toc (the default), | |
| 569 we also do this for floating-point constants. We actually can only | |
| 570 do this if the FP formats of the target and host machines are the | |
| 571 same, but we can't check that since not every file that uses | |
|
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572 the macros includes real.h. We also do this when we can write the |
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573 entry into the TOC and the entry is not larger than a TOC entry. */ |
| 0 | 574 |
| 575 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P | |
| 576 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \ | |
| 577 (TARGET_TOC \ | |
| 578 && (GET_CODE (X) == SYMBOL_REF \ | |
| 579 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \ | |
| 580 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \ | |
| 581 || GET_CODE (X) == LABEL_REF \ | |
| 582 || (GET_CODE (X) == CONST_INT \ | |
| 583 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \ | |
| 584 || (GET_CODE (X) == CONST_DOUBLE \ | |
| 585 && ((TARGET_64BIT \ | |
| 586 && (TARGET_MINIMAL_TOC \ | |
| 587 || (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ | |
| 588 && ! TARGET_NO_FP_IN_TOC))) \ | |
| 589 || (!TARGET_64BIT \ | |
| 590 && !TARGET_NO_FP_IN_TOC \ | |
| 591 && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ | |
| 592 && BITS_PER_WORD == HOST_BITS_PER_INT))))) | |
| 593 | |
| 594 /* Select a format to encode pointers in exception handling data. CODE | |
| 595 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is | |
| 596 true if the symbol may be affected by dynamic relocations. */ | |
| 597 #undef ASM_PREFERRED_EH_DATA_FORMAT | |
| 598 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ | |
| 111 | 599 (TARGET_64BIT || flag_pic \ |
| 0 | 600 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \ |
| 601 | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \ | |
| 602 : DW_EH_PE_absptr) | |
| 603 | |
| 604 /* For backward compatibility, we must continue to use the AIX | |
| 605 structure return convention. */ | |
| 606 #undef DRAFT_V4_STRUCT_RET | |
| 607 #define DRAFT_V4_STRUCT_RET (!TARGET_64BIT) | |
| 608 | |
| 609 #ifdef TARGET_LIBC_PROVIDES_SSP | |
| 610 /* ppc32 glibc provides __stack_chk_guard in -0x7008(2), | |
| 611 ppc64 glibc provides it at -0x7010(13). */ | |
| 612 #define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? -0x7010 : -0x7008) | |
| 613 #endif | |
| 614 | |
| 615 #define POWERPC_LINUX | |
| 616 | |
| 617 /* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */ | |
| 618 #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 | |
| 619 #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
| 620 #endif | |
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621 |
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622 /* Static stack checking is supported by means of probes. */ |
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623 #define STACK_CHECK_STATIC_BUILTIN 1 |
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624 |
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625 /* The default value isn't sufficient in 64-bit mode. */ |
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626 #define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024) |
| 111 | 627 |
| 628 /* Software floating point support for exceptions and rounding modes | |
| 629 depends on the C library in use. */ | |
| 630 #undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P | |
| 631 #define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \ | |
| 632 rs6000_linux_float_exceptions_rounding_supported_p | |
| 633 | |
| 634 /* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends | |
| 635 on glibc 2.19 or greater. */ | |
| 636 #if TARGET_GLIBC_MAJOR > 2 \ | |
| 637 || (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19) | |
| 638 #define RS6000_GLIBC_ATOMIC_FENV 1 | |
| 639 #endif | |
| 640 | |
| 641 /* The IEEE 128-bit emulator is only built on Linux systems. Flag that we | |
| 642 should enable the type handling for KFmode on VSX systems even if we are not | |
| 643 enabling the __float128 keyword. */ | |
| 644 #undef TARGET_FLOAT128_ENABLE_TYPE | |
| 645 #define TARGET_FLOAT128_ENABLE_TYPE 1 |