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8eaf2dd1 | 1 | /* Definitions of target machine for GNU compiler, |
c8515df4 | 2 | for 64 bit PowerPC linux. |
fbd26352 | 3 | Copyright (C) 2000-2019 Free Software Foundation, Inc. |
8eaf2dd1 | 4 | |
3a5a28e2 | 5 | This file is part of GCC. |
8eaf2dd1 | 6 | |
3a5a28e2 | 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 | |
038d1e19 | 9 | by the Free Software Foundation; either version 3, or (at your |
3a5a28e2 | 10 | option) any later version. |
8eaf2dd1 | 11 | |
3a5a28e2 | 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. | |
8eaf2dd1 | 16 | |
6bc9506f | 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 | |
038d1e19 | 24 | <http://www.gnu.org/licenses/>. */ |
8eaf2dd1 | 25 | |
527d5be8 | 26 | #ifndef RS6000_BI_ARCH |
8eaf2dd1 | 27 | |
527d5be8 | 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 | |
2eb52fc1 | 52 | |
66ebfa67 | 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 | ||
2fe6297a | 60 | #define TARGET_PROFILE_KERNEL profile_kernel |
61 | ||
4d4180ce | 62 | #undef TARGET_KEEP_LEAF_WHEN_PROFILED |
63 | #define TARGET_KEEP_LEAF_WHEN_PROFILED rs6000_keep_leaf_when_profiled | |
64 | ||
72350d7b | 65 | #define TARGET_USES_LINUX64_OPT 1 |
66 | #ifdef HAVE_LD_LARGE_TOC | |
72350d7b | 67 | #undef TARGET_CMODEL |
755fa783 | 68 | #define TARGET_CMODEL rs6000_current_cmodel |
69 | #define SET_CMODEL(opt) rs6000_current_cmodel = opt | |
72350d7b | 70 | #else |
8d056442 | 71 | #define SET_CMODEL(opt) do {} while (0) |
72350d7b | 72 | #endif |
73 | ||
7241927c | 74 | #undef PROCESSOR_DEFAULT |
bcc2fca8 | 75 | #define PROCESSOR_DEFAULT PROCESSOR_POWER7 |
7241927c | 76 | #undef PROCESSOR_DEFAULT64 |
5881a7cb | 77 | #define PROCESSOR_DEFAULT64 PROCESSOR_POWER8 |
72943b59 | 78 | |
31f742e9 | 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 \ | |
62b54165 | 83 | (rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE) |
527d5be8 | 84 | |
85 | #undef RS6000_ABI_NAME | |
66ebfa67 | 86 | #define RS6000_ABI_NAME "linux" |
527d5be8 | 87 | |
2d67bb48 | 88 | #define INVALID_64BIT "%<-m%s%> not supported in this configuration" |
527d5be8 | 89 | #define INVALID_32BIT INVALID_64BIT |
90 | ||
238f342d | 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 | ||
527d5be8 | 97 | #undef SUBSUBTARGET_OVERRIDE_OPTIONS |
98 | #define SUBSUBTARGET_OVERRIDE_OPTIONS \ | |
99 | do \ | |
100 | { \ | |
a4a5a0e9 | 101 | if (!global_options_set.x_rs6000_alignment_flags) \ |
df79d252 | 102 | rs6000_alignment_flags = MASK_ALIGN_NATURAL; \ |
7bb12776 | 103 | if (rs6000_isa_flags & OPTION_MASK_64BIT) \ |
527d5be8 | 104 | { \ |
105 | if (DEFAULT_ABI != ABI_AIX) \ | |
106 | { \ | |
df79d252 | 107 | rs6000_current_abi = ABI_AIX; \ |
527d5be8 | 108 | error (INVALID_64BIT, "call"); \ |
109 | } \ | |
66ebfa67 | 110 | dot_symbols = !strcmp (rs6000_abi_name, "aixdesc"); \ |
238f342d | 111 | if (ELFv2_ABI_CHECK) \ |
112 | { \ | |
113 | rs6000_current_abi = ABI_ELFv2; \ | |
114 | if (dot_symbols) \ | |
115 | error ("-mcall-aixdesc incompatible with -mabi=elfv2"); \ | |
116 | } \ | |
62b54165 | 117 | if (rs6000_isa_flags & OPTION_MASK_RELOCATABLE) \ |
527d5be8 | 118 | { \ |
62b54165 | 119 | rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE; \ |
527d5be8 | 120 | error (INVALID_64BIT, "relocatable"); \ |
121 | } \ | |
62b54165 | 122 | if (rs6000_isa_flags & OPTION_MASK_EABI) \ |
527d5be8 | 123 | { \ |
62b54165 | 124 | rs6000_isa_flags &= ~OPTION_MASK_EABI; \ |
527d5be8 | 125 | error (INVALID_64BIT, "eabi"); \ |
126 | } \ | |
3230b740 | 127 | if (TARGET_PROTOTYPE) \ |
527d5be8 | 128 | { \ |
47b92737 | 129 | target_prototype = 0; \ |
527d5be8 | 130 | error (INVALID_64BIT, "prototype"); \ |
131 | } \ | |
62b54165 | 132 | if ((rs6000_isa_flags & OPTION_MASK_POWERPC64) == 0) \ |
3a9bfe1e | 133 | { \ |
62b54165 | 134 | rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ |
3a9bfe1e | 135 | error ("-m64 requires a PowerPC64 cpu"); \ |
136 | } \ | |
62b54165 | 137 | if ((rs6000_isa_flags_explicit \ |
138 | & OPTION_MASK_MINIMAL_TOC) != 0) \ | |
72350d7b | 139 | { \ |
a4a5a0e9 | 140 | if (global_options_set.x_rs6000_current_cmodel \ |
755fa783 | 141 | && rs6000_current_cmodel != CMODEL_SMALL) \ |
72350d7b | 142 | error ("-mcmodel incompatible with other toc options"); \ |
143 | SET_CMODEL (CMODEL_SMALL); \ | |
144 | } \ | |
145 | else \ | |
146 | { \ | |
a4a5a0e9 | 147 | if (!global_options_set.x_rs6000_current_cmodel) \ |
40e2644f | 148 | SET_CMODEL (CMODEL_MEDIUM); \ |
755fa783 | 149 | if (rs6000_current_cmodel != CMODEL_SMALL) \ |
72350d7b | 150 | { \ |
c7f18d78 | 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; \ | |
72350d7b | 156 | } \ |
157 | } \ | |
527d5be8 | 158 | } \ |
159 | else \ | |
160 | { \ | |
161 | if (!RS6000_BI_ARCH_P) \ | |
162 | error (INVALID_32BIT, "32"); \ | |
617f66bf | 163 | if (TARGET_PROFILE_KERNEL) \ |
164 | { \ | |
2fe6297a | 165 | TARGET_PROFILE_KERNEL = 0; \ |
617f66bf | 166 | error (INVALID_32BIT, "profile-kernel"); \ |
167 | } \ | |
a4a5a0e9 | 168 | if (global_options_set.x_rs6000_current_cmodel) \ |
72350d7b | 169 | { \ |
170 | SET_CMODEL (CMODEL_SMALL); \ | |
171 | error (INVALID_32BIT, "cmodel"); \ | |
172 | } \ | |
527d5be8 | 173 | } \ |
174 | } \ | |
175 | while (0) | |
176 | ||
527d5be8 | 177 | #undef ASM_DEFAULT_SPEC |
115ebc5d | 178 | #undef ASM_SPEC |
527d5be8 | 179 | #undef LINK_OS_LINUX_SPEC |
71017472 | 180 | #undef LINK_SECURE_PLT_SPEC |
115ebc5d | 181 | |
527d5be8 | 182 | #ifndef RS6000_BI_ARCH |
183 | #define ASM_DEFAULT_SPEC "-mppc64" | |
253cf589 | 184 | #define ASM_SPEC "%(asm_spec64) %(asm_spec_common)" |
527d5be8 | 185 | #define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)" |
71017472 | 186 | #define LINK_SECURE_PLT_SPEC "" |
527d5be8 | 187 | #else |
188 | #if DEFAULT_ARCH64_P | |
189 | #define ASM_DEFAULT_SPEC "-mppc%{!m32:64}" | |
253cf589 | 190 | #define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)" |
527d5be8 | 191 | #define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}" |
71017472 | 192 | #define LINK_SECURE_PLT_SPEC "%{m32: " LINK_SECURE_PLT_DEFAULT_SPEC "}" |
527d5be8 | 193 | #else |
194 | #define ASM_DEFAULT_SPEC "-mppc%{m64:64}" | |
253cf589 | 195 | #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)" |
527d5be8 | 196 | #define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}" |
71017472 | 197 | #define LINK_SECURE_PLT_SPEC "%{!m64: " LINK_SECURE_PLT_DEFAULT_SPEC "}" |
527d5be8 | 198 | #endif |
199 | #endif | |
200 | ||
63713d4f | 201 | #define ASM_SPEC32 "-a32 \ |
e9abca4f | 202 | %{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \ |
23c6c8a2 | 203 | %{memb|msdata=eabi: -memb}" |
527d5be8 | 204 | |
205 | #define ASM_SPEC64 "-a64" | |
206 | ||
207 | #define ASM_SPEC_COMMON "%(asm_cpu) \ | |
23c6c8a2 | 208 | %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}" \ |
209 | ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) | |
527d5be8 | 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 }, \ | |
78de65bc | 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 | |
527d5be8 | 247 | |
c9f48b91 | 248 | #undef MULTILIB_DEFAULTS |
527d5be8 | 249 | #if DEFAULT_ARCH64_P |
c9f48b91 | 250 | #define MULTILIB_DEFAULTS { "m64" } |
527d5be8 | 251 | #else |
c9f48b91 | 252 | #define MULTILIB_DEFAULTS { "m32" } |
527d5be8 | 253 | #endif |
254 | ||
c33609c3 | 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 | |
269 | ||
527d5be8 | 270 | #ifndef RS6000_BI_ARCH |
3b6e6f93 | 271 | |
2eb52fc1 | 272 | /* 64-bit PowerPC Linux always has a TOC. */ |
2eb52fc1 | 273 | #undef TARGET_TOC |
274 | #define TARGET_TOC 1 | |
275 | ||
527d5be8 | 276 | /* Some things from sysv4.h we don't do when 64 bit. */ |
62b54165 | 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 | |
31f742e9 | 283 | #undef RELOCATABLE_NEEDS_FIXUP |
284 | #define RELOCATABLE_NEEDS_FIXUP 0 | |
3b6e6f93 | 285 | |
527d5be8 | 286 | #endif |
287 | ||
2eb52fc1 | 288 | /* We use glibc _mcount for profiling. */ |
b34a9a74 | 289 | #define NO_PROFILE_COUNTERS 1 |
527d5be8 | 290 | #define PROFILE_HOOK(LABEL) \ |
291 | do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0) | |
2eb52fc1 | 292 | |
df79d252 | 293 | /* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */ |
227c963b | 294 | #undef ADJUST_FIELD_ALIGN |
700a9760 | 295 | #define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED) \ |
296 | (rs6000_special_adjust_field_align_p ((TYPE), (COMPUTED)) \ | |
527d5be8 | 297 | ? 128 \ |
298 | : (TARGET_64BIT \ | |
299 | && TARGET_ALIGN_NATURAL == 0 \ | |
700a9760 | 300 | && TYPE_MODE (strip_array_types (TYPE)) == DFmode) \ |
527d5be8 | 301 | ? MIN ((COMPUTED), 32) \ |
302 | : (COMPUTED)) | |
3c8fd74f | 303 | |
df79d252 | 304 | /* PowerPC64 Linux increases natural record alignment to doubleword if |
d84c6db8 | 305 | the first field is an FP double, only if in power alignment mode. */ |
3a5a28e2 | 306 | #undef ROUND_TYPE_ALIGN |
d84c6db8 | 307 | #define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \ |
9c2675e7 | 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) \ | |
d84c6db8 | 313 | ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \ |
8eaf2dd1 | 314 | : MAX ((COMPUTED), (SPECIFIED))) |
315 | ||
dea85af0 | 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 | ||
8eaf2dd1 | 322 | /* Indicate that jump tables go in the text section. */ |
367a6c4c | 323 | #undef JUMP_TABLES_IN_TEXT_SECTION |
527d5be8 | 324 | #define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT |
8eaf2dd1 | 325 | |
5f4cd670 | 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, | |
50d82890 | 330 | then map the reg param area to registers. i.e. pad upward. |
751e10d1 | 331 | Setting both of the following defines results in this behavior. |
5f4cd670 | 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 | ||
5f4cd670 | 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) \ | |
d7ab0e3d | 343 | (!(FIRST) ? PAD_UPWARD : targetm.calls.function_arg_padding (MODE, TYPE)) |
5f4cd670 | 344 | |
dbb4f0b5 | 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 | ||
d9993a19 | 349 | #ifdef SINGLE_LIBC |
350 | #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) | |
981702f2 | 351 | #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) |
352 | #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) | |
f2d678af | 353 | #undef OPTION_MUSL |
354 | #define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL) | |
d9993a19 | 355 | #else |
c923aba8 | 356 | #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
981702f2 | 357 | #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) |
358 | #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) | |
f2d678af | 359 | #undef OPTION_MUSL |
360 | #define OPTION_MUSL (linux_libc == LIBC_MUSL) | |
d9993a19 | 361 | #endif |
c923aba8 | 362 | |
30f690e0 | 363 | /* Determine what functions are present at the runtime; |
364 | this includes full c99 runtime and sincos. */ | |
365 | #undef TARGET_LIBC_HAS_FUNCTION | |
0cc3ad67 | 366 | #define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function |
dbb4f0b5 | 367 | |
3a5a28e2 | 368 | #undef TARGET_OS_CPP_BUILTINS |
253cf589 | 369 | #define TARGET_OS_CPP_BUILTINS() \ |
527d5be8 | 370 | do \ |
371 | { \ | |
cdfc6004 | 372 | if (strcmp (rs6000_abi_name, "linux") == 0) \ |
373 | GNU_USER_TARGET_OS_CPP_BUILTINS(); \ | |
527d5be8 | 374 | if (TARGET_64BIT) \ |
375 | { \ | |
376 | builtin_define ("__PPC__"); \ | |
377 | builtin_define ("__PPC64__"); \ | |
378 | builtin_define ("__powerpc__"); \ | |
379 | builtin_define ("__powerpc64__"); \ | |
70b94afd | 380 | if (!DOT_SYMBOLS) \ |
381 | builtin_define ("_CALL_LINUX"); \ | |
527d5be8 | 382 | builtin_assert ("cpu=powerpc64"); \ |
383 | builtin_assert ("machine=powerpc64"); \ | |
384 | } \ | |
385 | else \ | |
386 | { \ | |
387 | builtin_define_std ("PPC"); \ | |
388 | builtin_define_std ("powerpc"); \ | |
389 | builtin_assert ("cpu=powerpc"); \ | |
390 | builtin_assert ("machine=powerpc"); \ | |
391 | TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
392 | } \ | |
393 | } \ | |
5b2c8acb | 394 | while (0) |
8eaf2dd1 | 395 | |
03385ed3 | 396 | #define GNU_USER_TARGET_D_OS_VERSIONS() \ |
397 | do { \ | |
398 | builtin_version ("linux"); \ | |
399 | if (OPTION_GLIBC) \ | |
400 | builtin_version ("CRuntime_Glibc"); \ | |
401 | else if (OPTION_UCLIBC) \ | |
402 | builtin_version ("CRuntime_UClibc"); \ | |
403 | else if (OPTION_BIONIC) \ | |
404 | builtin_version ("CRuntime_Bionic"); \ | |
405 | else if (OPTION_MUSL) \ | |
406 | builtin_version ("CRuntime_Musl"); \ | |
407 | } while (0) | |
408 | ||
2eb52fc1 | 409 | #undef CPP_OS_DEFAULT_SPEC |
78de65bc | 410 | #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux) %(include_extra)" |
8eaf2dd1 | 411 | |
367a6c4c | 412 | #undef LINK_SHLIB_SPEC |
62645df4 | 413 | #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}} \ |
414 | %{static-pie:-static -pie --no-dynamic-linker -z text}" | |
8eaf2dd1 | 415 | |
2eb52fc1 | 416 | #undef LIB_DEFAULT_SPEC |
8eaf2dd1 | 417 | #define LIB_DEFAULT_SPEC "%(lib_linux)" |
418 | ||
2eb52fc1 | 419 | #undef STARTFILE_DEFAULT_SPEC |
8eaf2dd1 | 420 | #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" |
421 | ||
422 | #undef ENDFILE_DEFAULT_SPEC | |
423 | #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" | |
424 | ||
425 | #undef LINK_START_DEFAULT_SPEC | |
426 | #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
427 | ||
428 | #undef LINK_OS_DEFAULT_SPEC | |
429 | #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
430 | ||
78de65bc | 431 | #define GLIBC_DYNAMIC_LINKER32 "%(dynamic_linker_prefix)/lib/ld.so.1" |
432 | ||
238f342d | 433 | #ifdef LINUX64_DEFAULT_ABI_ELFv2 |
78de65bc | 434 | #define GLIBC_DYNAMIC_LINKER64 \ |
435 | "%{mabi=elfv1:%(dynamic_linker_prefix)/lib64/ld64.so.1;" \ | |
436 | ":%(dynamic_linker_prefix)/lib64/ld64.so.2}" | |
238f342d | 437 | #else |
78de65bc | 438 | #define GLIBC_DYNAMIC_LINKER64 \ |
439 | "%{mabi=elfv2:%(dynamic_linker_prefix)/lib64/ld64.so.2;" \ | |
440 | ":%(dynamic_linker_prefix)/lib64/ld64.so.1}" | |
238f342d | 441 | #endif |
78de65bc | 442 | |
cdfc6004 | 443 | #undef MUSL_DYNAMIC_LINKER32 |
02f43d0e | 444 | #define MUSL_DYNAMIC_LINKER32 \ |
445 | "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1" | |
cdfc6004 | 446 | #undef MUSL_DYNAMIC_LINKER64 |
02f43d0e | 447 | #define MUSL_DYNAMIC_LINKER64 \ |
448 | "/lib/ld-musl-powerpc64" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1" | |
449 | ||
a6245fde | 450 | #undef DEFAULT_ASM_ENDIAN |
d80dc920 | 451 | #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) |
a6245fde | 452 | #define DEFAULT_ASM_ENDIAN " -mlittle" |
23c6c8a2 | 453 | #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ |
454 | " -m elf32lppclinux", \ | |
455 | " -m elf32lppclinux") | |
456 | #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ | |
457 | " -m elf64lppc", \ | |
458 | " -m elf64lppc") | |
d80dc920 | 459 | #else |
a6245fde | 460 | #define DEFAULT_ASM_ENDIAN " -mbig" |
23c6c8a2 | 461 | #define LINK_OS_LINUX_EMUL32 ENDIAN_SELECT(" -m elf32ppclinux", \ |
462 | " -m elf32lppclinux", \ | |
463 | " -m elf32ppclinux") | |
464 | #define LINK_OS_LINUX_EMUL64 ENDIAN_SELECT(" -m elf64ppc", \ | |
465 | " -m elf64lppc", \ | |
466 | " -m elf64ppc") | |
d80dc920 | 467 | #endif |
c490c13b | 468 | |
d80dc920 | 469 | #define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \ |
62645df4 | 470 | %{!static-pie: \ |
471 | %{rdynamic:-export-dynamic} \ | |
472 | -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \ | |
78de65bc | 473 | %(link_os_extra_spec32)" |
3c6e13d9 | 474 | |
d80dc920 | 475 | #define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \ |
62645df4 | 476 | %{!static-pie: \ |
477 | %{rdynamic:-export-dynamic} \ | |
478 | -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \ | |
78de65bc | 479 | %(link_os_extra_spec64)" |
8eaf2dd1 | 480 | |
ab6b1bb4 | 481 | /* Use gnu-user.h LINK_GCC_SEQUENCE_SPEC for linux. */ |
482 | #undef LINK_GCC_C_SEQUENCE_SPEC | |
483 | #define LINK_GCC_C_SEQUENCE_SPEC \ | |
484 | "%{mads|myellowknife|mmvme|msim:%G %L %G;" \ | |
485 | "!mcall-*|mcall-linux:" GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC ";" \ | |
486 | ":%G %L %G}" | |
487 | ||
367a6c4c | 488 | #undef TOC_SECTION_ASM_OP |
527d5be8 | 489 | #define TOC_SECTION_ASM_OP \ |
490 | (TARGET_64BIT \ | |
491 | ? "\t.section\t\".toc\",\"aw\"" \ | |
492 | : "\t.section\t\".got\",\"aw\"") | |
8eaf2dd1 | 493 | |
367a6c4c | 494 | #undef MINIMAL_TOC_SECTION_ASM_OP |
527d5be8 | 495 | #define MINIMAL_TOC_SECTION_ASM_OP \ |
496 | (TARGET_64BIT \ | |
497 | ? "\t.section\t\".toc1\",\"aw\"" \ | |
aead0c9c | 498 | : (flag_pic \ |
527d5be8 | 499 | ? "\t.section\t\".got2\",\"aw\"" \ |
500 | : "\t.section\t\".got1\",\"aw\"")) | |
8eaf2dd1 | 501 | |
8eaf2dd1 | 502 | /* Must be at least as big as our pointer type. */ |
527d5be8 | 503 | #undef SIZE_TYPE |
504 | #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int") | |
8eaf2dd1 | 505 | |
527d5be8 | 506 | #undef PTRDIFF_TYPE |
507 | #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int") | |
8eaf2dd1 | 508 | |
527d5be8 | 509 | #undef WCHAR_TYPE |
510 | #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int") | |
8eaf2dd1 | 511 | #undef WCHAR_TYPE_SIZE |
512 | #define WCHAR_TYPE_SIZE 32 | |
513 | ||
367a6c4c | 514 | #undef RS6000_MCOUNT |
2eb52fc1 | 515 | #define RS6000_MCOUNT "_mcount" |
367a6c4c | 516 | |
1a66c8d5 | 517 | #ifdef __powerpc64__ |
518 | /* _init and _fini functions are built from bits spread across many | |
519 | object files, each potentially with a different TOC pointer. For | |
520 | that reason, place a nop after the call so that the linker can | |
521 | restore the TOC pointer if a TOC adjusting call stub is needed. */ | |
66ebfa67 | 522 | #if DOT_SYMBOLS |
1a66c8d5 | 523 | #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ |
524 | asm (SECTION_OP "\n" \ | |
525 | " bl ." #FUNC "\n" \ | |
526 | " nop\n" \ | |
527 | " .previous"); | |
66ebfa67 | 528 | #else |
529 | #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \ | |
530 | asm (SECTION_OP "\n" \ | |
531 | " bl " #FUNC "\n" \ | |
532 | " nop\n" \ | |
533 | " .previous"); | |
534 | #endif | |
1a66c8d5 | 535 | #endif |
536 | ||
367a6c4c | 537 | /* FP save and restore routines. */ |
538 | #undef SAVE_FP_PREFIX | |
527d5be8 | 539 | #define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_") |
367a6c4c | 540 | #undef SAVE_FP_SUFFIX |
cac0aa5a | 541 | #define SAVE_FP_SUFFIX "" |
367a6c4c | 542 | #undef RESTORE_FP_PREFIX |
527d5be8 | 543 | #define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_") |
367a6c4c | 544 | #undef RESTORE_FP_SUFFIX |
cac0aa5a | 545 | #define RESTORE_FP_SUFFIX "" |
367a6c4c | 546 | |
8eaf2dd1 | 547 | /* Dwarf2 debugging. */ |
367a6c4c | 548 | #undef PREFERRED_DEBUGGING_TYPE |
2eb52fc1 | 549 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
550 | ||
ee0125fb | 551 | /* This is how to declare the size of a function. */ |
552 | #undef ASM_DECLARE_FUNCTION_SIZE | |
553 | #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ | |
554 | do \ | |
555 | { \ | |
556 | if (!flag_inhibit_size_directive) \ | |
557 | { \ | |
527d5be8 | 558 | fputs ("\t.size\t", (FILE)); \ |
66ebfa67 | 559 | if (TARGET_64BIT && DOT_SYMBOLS) \ |
527d5be8 | 560 | putc ('.', (FILE)); \ |
ee0125fb | 561 | assemble_name ((FILE), (FNAME)); \ |
527d5be8 | 562 | fputs (",.-", (FILE)); \ |
66ebfa67 | 563 | rs6000_output_function_entry (FILE, FNAME); \ |
ee0125fb | 564 | putc ('\n', (FILE)); \ |
565 | } \ | |
566 | } \ | |
567 | while (0) | |
568 | ||
e911aedf | 569 | /* Return nonzero if this entry is to be written into the constant |
8eaf2dd1 | 570 | pool in a special way. We do so if this is a SYMBOL_REF, LABEL_REF |
571 | or a CONST containing one of them. If -mfp-in-toc (the default), | |
572 | we also do this for floating-point constants. We actually can only | |
573 | do this if the FP formats of the target and host machines are the | |
574 | same, but we can't check that since not every file that uses | |
5aa800ab | 575 | the macros includes real.h. We also do this when we can write an |
576 | integer into the TOC and the entry is not larger than a TOC entry, | |
577 | but not for -mcmodel=medium where we'll use a toc-relative load for | |
578 | constants outside the TOC. */ | |
8eaf2dd1 | 579 | |
580 | #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P | |
581 | #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \ | |
582 | (TARGET_TOC \ | |
583 | && (GET_CODE (X) == SYMBOL_REF \ | |
584 | || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \ | |
585 | && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \ | |
586 | || GET_CODE (X) == LABEL_REF \ | |
587 | || (GET_CODE (X) == CONST_INT \ | |
5aa800ab | 588 | && TARGET_CMODEL != CMODEL_MEDIUM \ |
8eaf2dd1 | 589 | && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \ |
590 | || (GET_CODE (X) == CONST_DOUBLE \ | |
527d5be8 | 591 | && ((TARGET_64BIT \ |
ecaa8a98 | 592 | && (TARGET_MINIMAL_TOC \ |
e284b8fb | 593 | || (SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ |
527d5be8 | 594 | && ! TARGET_NO_FP_IN_TOC))) \ |
595 | || (!TARGET_64BIT \ | |
596 | && !TARGET_NO_FP_IN_TOC \ | |
e284b8fb | 597 | && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \ |
527d5be8 | 598 | && BITS_PER_WORD == HOST_BITS_PER_INT))))) |
8eaf2dd1 | 599 | |
13864c73 | 600 | /* Select a format to encode pointers in exception handling data. CODE |
601 | is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is | |
602 | true if the symbol may be affected by dynamic relocations. */ | |
603 | #undef ASM_PREFERRED_EH_DATA_FORMAT | |
604 | #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \ | |
aead0c9c | 605 | (TARGET_64BIT || flag_pic \ |
527d5be8 | 606 | ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \ |
607 | | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \ | |
608 | : DW_EH_PE_absptr) | |
609 | ||
610 | /* For backward compatibility, we must continue to use the AIX | |
611 | structure return convention. */ | |
612 | #undef DRAFT_V4_STRUCT_RET | |
613 | #define DRAFT_V4_STRUCT_RET (!TARGET_64BIT) | |
614 | ||
0d55f4d0 | 615 | #ifdef TARGET_LIBC_PROVIDES_SSP |
616 | /* ppc32 glibc provides __stack_chk_guard in -0x7008(2), | |
617 | ppc64 glibc provides it at -0x7010(13). */ | |
618 | #define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? -0x7010 : -0x7008) | |
619 | #endif | |
baad77c2 | 620 | |
621 | #define POWERPC_LINUX | |
2dde0cc6 | 622 | |
623 | /* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */ | |
624 | #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 | |
625 | #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
626 | #endif | |
d09d3bcf | 627 | |
628 | /* Static stack checking is supported by means of probes. */ | |
629 | #define STACK_CHECK_STATIC_BUILTIN 1 | |
630 | ||
631 | /* The default value isn't sufficient in 64-bit mode. */ | |
632 | #define STACK_CHECK_PROTECT (TARGET_64BIT ? 16 * 1024 : 12 * 1024) | |
4c866b9b | 633 | |
634 | /* Software floating point support for exceptions and rounding modes | |
635 | depends on the C library in use. */ | |
636 | #undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P | |
637 | #define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \ | |
638 | rs6000_linux_float_exceptions_rounding_supported_p | |
6eb68b8f | 639 | |
640 | /* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends | |
641 | on glibc 2.19 or greater. */ | |
642 | #if TARGET_GLIBC_MAJOR > 2 \ | |
643 | || (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19) | |
644 | #define RS6000_GLIBC_ATOMIC_FENV 1 | |
645 | #endif | |
7d29bba9 | 646 | |
647 | /* The IEEE 128-bit emulator is only built on Linux systems. Flag that we | |
648 | should enable the type handling for KFmode on VSX systems even if we are not | |
649 | enabling the __float128 keyword. */ | |
650 | #undef TARGET_FLOAT128_ENABLE_TYPE | |
651 | #define TARGET_FLOAT128_ENABLE_TYPE 1 |