Mercurial > hg > CbC > CbC_gcc
annotate gcc/defaults.h @ 55:77e2b8dfacca gcc-4.4.5
update it from 4.4.3 to 4.5.0
| author | ryoma <e075725@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Fri, 12 Feb 2010 23:39:51 +0900 |
| parents | 58ad6c70ea60 |
| children | b7f97abdc517 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions of various defaults for tm.h macros. |
| 2 Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, | |
| 3 2005, 2007, 2008, 2009 | |
| 4 Free Software Foundation, Inc. | |
| 5 Contributed by Ron Guilmette (rfg@monkeys.com) | |
| 6 | |
| 7 This file is part of GCC. | |
| 8 | |
| 9 GCC is free software; you can redistribute it and/or modify it under | |
| 10 the terms of the GNU General Public License as published by the Free | |
| 11 Software Foundation; either version 3, or (at your option) any later | |
| 12 version. | |
| 13 | |
| 14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 15 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 17 for more details. | |
| 18 | |
| 19 Under Section 7 of GPL version 3, you are granted additional | |
| 20 permissions described in the GCC Runtime Library Exception, version | |
| 21 3.1, as published by the Free Software Foundation. | |
| 22 | |
| 23 You should have received a copy of the GNU General Public License and | |
| 24 a copy of the GCC Runtime Library Exception along with this program; | |
| 25 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 26 <http://www.gnu.org/licenses/>. */ | |
| 27 | |
| 28 #ifndef GCC_DEFAULTS_H | |
| 29 #define GCC_DEFAULTS_H | |
| 30 | |
| 31 #ifndef GET_ENVIRONMENT | |
| 32 #define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0) | |
| 33 #endif | |
| 34 | |
| 35 #define obstack_chunk_alloc ((void *(*) (long)) xmalloc) | |
| 36 #define obstack_chunk_free ((void (*) (void *)) free) | |
| 37 #define OBSTACK_CHUNK_SIZE 0 | |
| 38 #define gcc_obstack_init(OBSTACK) \ | |
| 39 _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \ | |
| 40 obstack_chunk_alloc, \ | |
| 41 obstack_chunk_free) | |
| 42 | |
| 43 /* Store in OUTPUT a string (made with alloca) containing an | |
| 44 assembler-name for a local static variable or function named NAME. | |
| 45 LABELNO is an integer which is different for each call. */ | |
| 46 | |
| 47 #ifndef ASM_PN_FORMAT | |
| 48 # ifndef NO_DOT_IN_LABEL | |
| 49 # define ASM_PN_FORMAT "%s.%lu" | |
| 50 # else | |
| 51 # ifndef NO_DOLLAR_IN_LABEL | |
| 52 # define ASM_PN_FORMAT "%s$%lu" | |
| 53 # else | |
| 54 # define ASM_PN_FORMAT "__%s_%lu" | |
| 55 # endif | |
| 56 # endif | |
| 57 #endif /* ! ASM_PN_FORMAT */ | |
| 58 | |
| 59 #ifndef ASM_FORMAT_PRIVATE_NAME | |
| 60 # define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ | |
| 61 do { const char *const name_ = (NAME); \ | |
| 62 char *const output_ = (OUTPUT) = \ | |
| 63 (char *) alloca (strlen (name_) + 32); \ | |
| 64 sprintf (output_, ASM_PN_FORMAT, name_, (unsigned long)(LABELNO)); \ | |
| 65 } while (0) | |
| 66 #endif | |
| 67 | |
| 68 /* Choose a reasonable default for ASM_OUTPUT_ASCII. */ | |
| 69 | |
| 70 #ifndef ASM_OUTPUT_ASCII | |
| 71 #define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \ | |
| 72 do { \ | |
| 73 FILE *_hide_asm_out_file = (MYFILE); \ | |
| 74 const unsigned char *_hide_p = (const unsigned char *) (MYSTRING); \ | |
| 75 int _hide_thissize = (MYLENGTH); \ | |
| 76 { \ | |
| 77 FILE *asm_out_file = _hide_asm_out_file; \ | |
| 78 const unsigned char *p = _hide_p; \ | |
| 79 int thissize = _hide_thissize; \ | |
| 80 int i; \ | |
| 81 fprintf (asm_out_file, "\t.ascii \""); \ | |
| 82 \ | |
| 83 for (i = 0; i < thissize; i++) \ | |
| 84 { \ | |
| 85 int c = p[i]; \ | |
| 86 if (c == '\"' || c == '\\') \ | |
| 87 putc ('\\', asm_out_file); \ | |
| 88 if (ISPRINT(c)) \ | |
| 89 putc (c, asm_out_file); \ | |
| 90 else \ | |
| 91 { \ | |
| 92 fprintf (asm_out_file, "\\%o", c); \ | |
| 93 /* After an octal-escape, if a digit follows, \ | |
| 94 terminate one string constant and start another. \ | |
| 95 The VAX assembler fails to stop reading the escape \ | |
| 96 after three digits, so this is the only way we \ | |
| 97 can get it to parse the data properly. */ \ | |
| 98 if (i < thissize - 1 && ISDIGIT(p[i + 1])) \ | |
| 99 fprintf (asm_out_file, "\"\n\t.ascii \""); \ | |
| 100 } \ | |
| 101 } \ | |
| 102 fprintf (asm_out_file, "\"\n"); \ | |
| 103 } \ | |
| 104 } \ | |
| 105 while (0) | |
| 106 #endif | |
| 107 | |
| 108 /* This is how we tell the assembler to equate two values. */ | |
| 109 #ifdef SET_ASM_OP | |
| 110 #ifndef ASM_OUTPUT_DEF | |
| 111 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ | |
| 112 do { fprintf ((FILE), "%s", SET_ASM_OP); \ | |
| 113 assemble_name (FILE, LABEL1); \ | |
| 114 fprintf (FILE, ","); \ | |
| 115 assemble_name (FILE, LABEL2); \ | |
| 116 fprintf (FILE, "\n"); \ | |
| 117 } while (0) | |
| 118 #endif | |
| 119 #endif | |
| 120 | |
| 121 #if defined (HAVE_AS_TLS) && !defined (ASM_OUTPUT_TLS_COMMON) | |
| 122 #define ASM_OUTPUT_TLS_COMMON(FILE, DECL, NAME, SIZE) \ | |
| 123 do \ | |
| 124 { \ | |
| 125 fprintf ((FILE), "\t.tls_common\t"); \ | |
| 126 assemble_name ((FILE), (NAME)); \ | |
| 127 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ | |
| 128 (SIZE), DECL_ALIGN (DECL) / BITS_PER_UNIT); \ | |
| 129 } \ | |
| 130 while (0) | |
| 131 #endif | |
| 132 | |
| 133 /* Decide whether to defer emitting the assembler output for an equate | |
| 134 of two values. The default is to not defer output. */ | |
| 135 #ifndef TARGET_DEFERRED_OUTPUT_DEFS | |
| 136 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) false | |
| 137 #endif | |
| 138 | |
| 139 /* This is how to output the definition of a user-level label named | |
| 140 NAME, such as the label on a static function or variable NAME. */ | |
| 141 | |
| 142 #ifndef ASM_OUTPUT_LABEL | |
| 143 #define ASM_OUTPUT_LABEL(FILE,NAME) \ | |
| 144 do { assemble_name ((FILE), (NAME)); fputs (":\n", (FILE)); } while (0) | |
| 145 #endif | |
| 146 | |
| 147 /* Output the definition of a compiler-generated label named NAME. */ | |
| 148 #ifndef ASM_OUTPUT_INTERNAL_LABEL | |
| 149 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME) \ | |
| 150 do { \ | |
| 151 assemble_name_raw ((FILE), (NAME)); \ | |
| 152 fputs (":\n", (FILE)); \ | |
| 153 } while (0) | |
| 154 #endif | |
| 155 | |
| 156 /* This is how to output a reference to a user-level label named NAME. */ | |
| 157 | |
| 158 #ifndef ASM_OUTPUT_LABELREF | |
| 159 #define ASM_OUTPUT_LABELREF(FILE,NAME) asm_fprintf ((FILE), "%U%s", (NAME)) | |
| 160 #endif | |
| 161 | |
| 162 /* Allow target to print debug info labels specially. This is useful for | |
| 163 VLIW targets, since debug info labels should go into the middle of | |
| 164 instruction bundles instead of breaking them. */ | |
| 165 | |
| 166 #ifndef ASM_OUTPUT_DEBUG_LABEL | |
| 167 #define ASM_OUTPUT_DEBUG_LABEL(FILE, PREFIX, NUM) \ | |
| 168 (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM) | |
| 169 #endif | |
| 170 | |
| 171 /* This is how we tell the assembler that a symbol is weak. */ | |
| 172 #ifndef ASM_OUTPUT_WEAK_ALIAS | |
| 173 #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF) | |
| 174 #define ASM_OUTPUT_WEAK_ALIAS(STREAM, NAME, VALUE) \ | |
| 175 do \ | |
| 176 { \ | |
| 177 ASM_WEAKEN_LABEL (STREAM, NAME); \ | |
| 178 if (VALUE) \ | |
| 179 ASM_OUTPUT_DEF (STREAM, NAME, VALUE); \ | |
| 180 } \ | |
| 181 while (0) | |
| 182 #endif | |
| 183 #endif | |
| 184 | |
| 185 /* This is how we tell the assembler that a symbol is a weak alias to | |
| 186 another symbol that doesn't require the other symbol to be defined. | |
| 187 Uses of the former will turn into weak uses of the latter, i.e., | |
| 188 uses that, in case the latter is undefined, will not cause errors, | |
| 189 and will add it to the symbol table as weak undefined. However, if | |
| 190 the latter is referenced directly, a strong reference prevails. */ | |
| 191 #ifndef ASM_OUTPUT_WEAKREF | |
| 192 #if defined HAVE_GAS_WEAKREF | |
| 193 #define ASM_OUTPUT_WEAKREF(FILE, DECL, NAME, VALUE) \ | |
| 194 do \ | |
| 195 { \ | |
| 196 fprintf ((FILE), "\t.weakref\t"); \ | |
| 197 assemble_name ((FILE), (NAME)); \ | |
| 198 fprintf ((FILE), ","); \ | |
| 199 assemble_name ((FILE), (VALUE)); \ | |
| 200 fprintf ((FILE), "\n"); \ | |
| 201 } \ | |
| 202 while (0) | |
| 203 #endif | |
| 204 #endif | |
| 205 | |
| 206 /* How to emit a .type directive. */ | |
| 207 #ifndef ASM_OUTPUT_TYPE_DIRECTIVE | |
| 208 #if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT | |
| 209 #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE) \ | |
| 210 do \ | |
| 211 { \ | |
| 212 fputs (TYPE_ASM_OP, STREAM); \ | |
| 213 assemble_name (STREAM, NAME); \ | |
| 214 fputs (", ", STREAM); \ | |
| 215 fprintf (STREAM, TYPE_OPERAND_FMT, TYPE); \ | |
| 216 putc ('\n', STREAM); \ | |
| 217 } \ | |
| 218 while (0) | |
| 219 #endif | |
| 220 #endif | |
| 221 | |
| 222 /* How to emit a .size directive. */ | |
| 223 #ifndef ASM_OUTPUT_SIZE_DIRECTIVE | |
| 224 #ifdef SIZE_ASM_OP | |
| 225 #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE) \ | |
| 226 do \ | |
| 227 { \ | |
| 228 HOST_WIDE_INT size_ = (SIZE); \ | |
| 229 fputs (SIZE_ASM_OP, STREAM); \ | |
| 230 assemble_name (STREAM, NAME); \ | |
| 231 fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_); \ | |
| 232 } \ | |
| 233 while (0) | |
| 234 | |
| 235 #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME) \ | |
| 236 do \ | |
| 237 { \ | |
| 238 fputs (SIZE_ASM_OP, STREAM); \ | |
| 239 assemble_name (STREAM, NAME); \ | |
| 240 fputs (", .-", STREAM); \ | |
| 241 assemble_name (STREAM, NAME); \ | |
| 242 putc ('\n', STREAM); \ | |
| 243 } \ | |
| 244 while (0) | |
| 245 | |
| 246 #endif | |
| 247 #endif | |
| 248 | |
| 249 /* This determines whether or not we support weak symbols. */ | |
| 250 #ifndef SUPPORTS_WEAK | |
| 251 #if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL) | |
| 252 #define SUPPORTS_WEAK 1 | |
| 253 #else | |
| 254 #define SUPPORTS_WEAK 0 | |
| 255 #endif | |
| 256 #endif | |
| 257 | |
|
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258 /* This determines whether or not we support the discriminator |
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259 attribute in the .loc directive. */ |
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260 #ifndef SUPPORTS_DISCRIMINATOR |
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261 #ifdef HAVE_GAS_DISCRIMINATOR |
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262 #define SUPPORTS_DISCRIMINATOR 1 |
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263 #else |
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264 #define SUPPORTS_DISCRIMINATOR 0 |
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265 #endif |
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266 #endif |
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267 |
| 0 | 268 /* This determines whether or not we support link-once semantics. */ |
| 269 #ifndef SUPPORTS_ONE_ONLY | |
| 270 #ifdef MAKE_DECL_ONE_ONLY | |
| 271 #define SUPPORTS_ONE_ONLY 1 | |
| 272 #else | |
| 273 #define SUPPORTS_ONE_ONLY 0 | |
| 274 #endif | |
| 275 #endif | |
| 276 | |
| 277 /* This determines whether weak symbols must be left out of a static | |
| 278 archive's table of contents. Defining this macro to be nonzero has | |
| 279 the consequence that certain symbols will not be made weak that | |
| 280 otherwise would be. The C++ ABI requires this macro to be zero; | |
| 281 see the documentation. */ | |
| 282 #ifndef TARGET_WEAK_NOT_IN_ARCHIVE_TOC | |
| 283 #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 0 | |
| 284 #endif | |
| 285 | |
| 286 /* This determines whether or not we need linkonce unwind information. */ | |
| 287 #ifndef TARGET_USES_WEAK_UNWIND_INFO | |
| 288 #define TARGET_USES_WEAK_UNWIND_INFO 0 | |
| 289 #endif | |
| 290 | |
| 291 /* By default, there is no prefix on user-defined symbols. */ | |
| 292 #ifndef USER_LABEL_PREFIX | |
| 293 #define USER_LABEL_PREFIX "" | |
| 294 #endif | |
| 295 | |
| 296 /* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to | |
| 297 provide a weak attribute. Else define it to nothing. | |
| 298 | |
| 299 This would normally belong in ansidecl.h, but SUPPORTS_WEAK is | |
| 300 not available at that time. | |
| 301 | |
| 302 Note, this is only for use by target files which we know are to be | |
| 303 compiled by GCC. */ | |
| 304 #ifndef TARGET_ATTRIBUTE_WEAK | |
| 305 # if SUPPORTS_WEAK | |
| 306 # define TARGET_ATTRIBUTE_WEAK __attribute__ ((weak)) | |
| 307 # else | |
| 308 # define TARGET_ATTRIBUTE_WEAK | |
| 309 # endif | |
| 310 #endif | |
| 311 | |
| 312 /* Determines whether we may use common symbols to represent one-only | |
| 313 semantics (a.k.a. "vague linkage"). */ | |
| 314 #ifndef USE_COMMON_FOR_ONE_ONLY | |
| 315 # define USE_COMMON_FOR_ONE_ONLY 1 | |
| 316 #endif | |
| 317 | |
| 318 /* By default we can assume that all global symbols are in one namespace, | |
| 319 across all shared libraries. */ | |
| 320 #ifndef MULTIPLE_SYMBOL_SPACES | |
| 321 # define MULTIPLE_SYMBOL_SPACES 0 | |
| 322 #endif | |
| 323 | |
| 324 /* If the target supports init_priority C++ attribute, give | |
| 325 SUPPORTS_INIT_PRIORITY a nonzero value. */ | |
| 326 #ifndef SUPPORTS_INIT_PRIORITY | |
| 327 #define SUPPORTS_INIT_PRIORITY 1 | |
| 328 #endif /* SUPPORTS_INIT_PRIORITY */ | |
| 329 | |
| 330 /* If duplicate library search directories can be removed from a | |
| 331 linker command without changing the linker's semantics, give this | |
| 332 symbol a nonzero. */ | |
| 333 #ifndef LINK_ELIMINATE_DUPLICATE_LDIRECTORIES | |
| 334 #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 0 | |
| 335 #endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */ | |
| 336 | |
| 337 /* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that | |
| 338 the rest of the DWARF 2 frame unwind support is also provided. */ | |
| 339 #if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) \ | |
| 340 && !defined (TARGET_UNWIND_INFO) | |
| 341 #define DWARF2_UNWIND_INFO 1 | |
| 342 #endif | |
| 343 | |
| 344 /* If we have named sections, and we're using crtstuff to run ctors, | |
| 345 use them for registering eh frame information. */ | |
| 346 #if defined (TARGET_ASM_NAMED_SECTION) && DWARF2_UNWIND_INFO \ | |
| 347 && !defined(EH_FRAME_IN_DATA_SECTION) | |
| 348 #ifndef EH_FRAME_SECTION_NAME | |
| 349 #define EH_FRAME_SECTION_NAME ".eh_frame" | |
| 350 #endif | |
| 351 #endif | |
| 352 | |
| 353 /* On many systems, different EH table encodings are used under | |
| 354 difference circumstances. Some will require runtime relocations; | |
| 355 some will not. For those that do not require runtime relocations, | |
| 356 we would like to make the table read-only. However, since the | |
| 357 read-only tables may need to be combined with read-write tables | |
| 358 that do require runtime relocation, it is not safe to make the | |
| 359 tables read-only unless the linker will merge read-only and | |
| 360 read-write sections into a single read-write section. If your | |
| 361 linker does not have this ability, but your system is such that no | |
| 362 encoding used with non-PIC code will ever require a runtime | |
| 363 relocation, then you can define EH_TABLES_CAN_BE_READ_ONLY to 1 in | |
| 364 your target configuration file. */ | |
| 365 #ifndef EH_TABLES_CAN_BE_READ_ONLY | |
| 366 #ifdef HAVE_LD_RO_RW_SECTION_MIXING | |
| 367 #define EH_TABLES_CAN_BE_READ_ONLY 1 | |
| 368 #else | |
| 369 #define EH_TABLES_CAN_BE_READ_ONLY 0 | |
| 370 #endif | |
| 371 #endif | |
| 372 | |
| 373 /* If we have named section and we support weak symbols, then use the | |
| 374 .jcr section for recording java classes which need to be registered | |
| 375 at program start-up time. */ | |
| 376 #if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK | |
| 377 #ifndef JCR_SECTION_NAME | |
| 378 #define JCR_SECTION_NAME ".jcr" | |
| 379 #endif | |
| 380 #endif | |
| 381 | |
| 382 /* This decision to use a .jcr section can be overridden by defining | |
| 383 USE_JCR_SECTION to 0 in target file. This is necessary if target | |
| 384 can define JCR_SECTION_NAME but does not have crtstuff or | |
| 385 linker support for .jcr section. */ | |
| 386 #ifndef TARGET_USE_JCR_SECTION | |
| 387 #ifdef JCR_SECTION_NAME | |
| 388 #define TARGET_USE_JCR_SECTION 1 | |
| 389 #else | |
| 390 #define TARGET_USE_JCR_SECTION 0 | |
| 391 #endif | |
| 392 #endif | |
| 393 | |
| 394 /* Number of hardware registers that go into the DWARF-2 unwind info. | |
| 395 If not defined, equals FIRST_PSEUDO_REGISTER */ | |
| 396 | |
| 397 #ifndef DWARF_FRAME_REGISTERS | |
| 398 #define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER | |
| 399 #endif | |
| 400 | |
| 401 /* How to renumber registers for dbx and gdb. If not defined, assume | |
| 402 no renumbering is necessary. */ | |
| 403 | |
| 404 #ifndef DBX_REGISTER_NUMBER | |
| 405 #define DBX_REGISTER_NUMBER(REGNO) (REGNO) | |
| 406 #endif | |
| 407 | |
| 408 /* Default sizes for base C types. If the sizes are different for | |
| 409 your target, you should override these values by defining the | |
| 410 appropriate symbols in your tm.h file. */ | |
| 411 | |
| 412 #ifndef BITS_PER_UNIT | |
| 413 #define BITS_PER_UNIT 8 | |
| 414 #endif | |
| 415 | |
| 416 #ifndef BITS_PER_WORD | |
| 417 #define BITS_PER_WORD (BITS_PER_UNIT * UNITS_PER_WORD) | |
| 418 #endif | |
| 419 | |
| 420 #ifndef CHAR_TYPE_SIZE | |
| 421 #define CHAR_TYPE_SIZE BITS_PER_UNIT | |
| 422 #endif | |
| 423 | |
| 424 #ifndef BOOL_TYPE_SIZE | |
| 425 /* `bool' has size and alignment `1', on almost all platforms. */ | |
| 426 #define BOOL_TYPE_SIZE CHAR_TYPE_SIZE | |
| 427 #endif | |
| 428 | |
| 429 #ifndef SHORT_TYPE_SIZE | |
| 430 #define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2)) | |
| 431 #endif | |
| 432 | |
| 433 #ifndef INT_TYPE_SIZE | |
| 434 #define INT_TYPE_SIZE BITS_PER_WORD | |
| 435 #endif | |
| 436 | |
| 437 #ifndef LONG_TYPE_SIZE | |
| 438 #define LONG_TYPE_SIZE BITS_PER_WORD | |
| 439 #endif | |
| 440 | |
| 441 #ifndef LONG_LONG_TYPE_SIZE | |
| 442 #define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2) | |
| 443 #endif | |
| 444 | |
| 445 #ifndef WCHAR_TYPE_SIZE | |
| 446 #define WCHAR_TYPE_SIZE INT_TYPE_SIZE | |
| 447 #endif | |
| 448 | |
| 449 #ifndef FLOAT_TYPE_SIZE | |
| 450 #define FLOAT_TYPE_SIZE BITS_PER_WORD | |
| 451 #endif | |
| 452 | |
| 453 #ifndef DOUBLE_TYPE_SIZE | |
| 454 #define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) | |
| 455 #endif | |
| 456 | |
| 457 #ifndef LONG_DOUBLE_TYPE_SIZE | |
| 458 #define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) | |
| 459 #endif | |
| 460 | |
| 461 #ifndef DECIMAL32_TYPE_SIZE | |
| 462 #define DECIMAL32_TYPE_SIZE 32 | |
|
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463 #endif |
| 0 | 464 |
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465 #ifndef DECIMAL64_TYPE_SIZE |
| 0 | 466 #define DECIMAL64_TYPE_SIZE 64 |
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467 #endif |
| 0 | 468 |
| 469 #ifndef DECIMAL128_TYPE_SIZE | |
| 470 #define DECIMAL128_TYPE_SIZE 128 | |
| 471 #endif | |
| 472 | |
| 473 #ifndef SHORT_FRACT_TYPE_SIZE | |
| 474 #define SHORT_FRACT_TYPE_SIZE BITS_PER_UNIT | |
| 475 #endif | |
| 476 | |
| 477 #ifndef FRACT_TYPE_SIZE | |
| 478 #define FRACT_TYPE_SIZE (BITS_PER_UNIT * 2) | |
| 479 #endif | |
| 480 | |
| 481 #ifndef LONG_FRACT_TYPE_SIZE | |
| 482 #define LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 4) | |
| 483 #endif | |
| 484 | |
| 485 #ifndef LONG_LONG_FRACT_TYPE_SIZE | |
| 486 #define LONG_LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 8) | |
| 487 #endif | |
| 488 | |
| 489 #ifndef SHORT_ACCUM_TYPE_SIZE | |
| 490 #define SHORT_ACCUM_TYPE_SIZE (SHORT_FRACT_TYPE_SIZE * 2) | |
| 491 #endif | |
| 492 | |
| 493 #ifndef ACCUM_TYPE_SIZE | |
| 494 #define ACCUM_TYPE_SIZE (FRACT_TYPE_SIZE * 2) | |
| 495 #endif | |
| 496 | |
| 497 #ifndef LONG_ACCUM_TYPE_SIZE | |
| 498 #define LONG_ACCUM_TYPE_SIZE (LONG_FRACT_TYPE_SIZE * 2) | |
| 499 #endif | |
| 500 | |
| 501 #ifndef LONG_LONG_ACCUM_TYPE_SIZE | |
| 502 #define LONG_LONG_ACCUM_TYPE_SIZE (LONG_LONG_FRACT_TYPE_SIZE * 2) | |
| 503 #endif | |
| 504 | |
|
55
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505 /* We let tm.h override the types used here, to handle trivial differences |
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506 such as the choice of unsigned int or long unsigned int for size_t. |
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507 When machines start needing nontrivial differences in the size type, |
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508 it would be best to do something here to figure out automatically |
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509 from other information what type to use. */ |
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510 |
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511 #ifndef SIZE_TYPE |
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512 #define SIZE_TYPE "long unsigned int" |
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513 #endif |
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514 |
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515 #ifndef PID_TYPE |
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516 #define PID_TYPE "int" |
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517 #endif |
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518 |
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519 /* If GCC knows the exact uint_least16_t and uint_least32_t types from |
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520 <stdint.h>, use them for char16_t and char32_t. Otherwise, use |
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521 these guesses; getting the wrong type of a given width will not |
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522 affect C++ name mangling because in C++ these are distinct types |
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523 not typedefs. */ |
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524 |
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525 #ifdef UINT_LEAST16_TYPE |
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526 #define CHAR16_TYPE UINT_LEAST16_TYPE |
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527 #else |
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528 #define CHAR16_TYPE "short unsigned int" |
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529 #endif |
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530 |
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531 #ifdef UINT_LEAST32_TYPE |
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532 #define CHAR32_TYPE UINT_LEAST32_TYPE |
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533 #else |
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534 #define CHAR32_TYPE "unsigned int" |
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535 #endif |
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536 |
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537 #ifndef WCHAR_TYPE |
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538 #define WCHAR_TYPE "int" |
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539 #endif |
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540 |
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541 /* WCHAR_TYPE gets overridden by -fshort-wchar. */ |
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542 #define MODIFIED_WCHAR_TYPE \ |
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543 (flag_short_wchar ? "short unsigned int" : WCHAR_TYPE) |
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544 |
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545 #ifndef PTRDIFF_TYPE |
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546 #define PTRDIFF_TYPE "long int" |
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547 #endif |
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548 |
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549 #ifndef WINT_TYPE |
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550 #define WINT_TYPE "unsigned int" |
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551 #endif |
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552 |
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553 #ifndef INTMAX_TYPE |
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554 #define INTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ |
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555 ? "int" \ |
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556 : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ |
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557 ? "long int" \ |
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558 : "long long int")) |
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559 #endif |
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560 |
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561 #ifndef UINTMAX_TYPE |
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562 #define UINTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ |
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563 ? "unsigned int" \ |
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564 : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ |
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565 ? "long unsigned int" \ |
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566 : "long long unsigned int")) |
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567 #endif |
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568 |
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569 |
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570 /* There are no default definitions of these <stdint.h> types. */ |
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571 |
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572 #ifndef SIG_ATOMIC_TYPE |
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573 #define SIG_ATOMIC_TYPE ((const char *) NULL) |
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574 #endif |
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575 |
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576 #ifndef INT8_TYPE |
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577 #define INT8_TYPE ((const char *) NULL) |
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578 #endif |
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579 |
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580 #ifndef INT16_TYPE |
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581 #define INT16_TYPE ((const char *) NULL) |
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582 #endif |
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583 |
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584 #ifndef INT32_TYPE |
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585 #define INT32_TYPE ((const char *) NULL) |
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586 #endif |
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587 |
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588 #ifndef INT64_TYPE |
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589 #define INT64_TYPE ((const char *) NULL) |
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590 #endif |
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591 |
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592 #ifndef UINT8_TYPE |
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593 #define UINT8_TYPE ((const char *) NULL) |
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594 #endif |
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595 |
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596 #ifndef UINT16_TYPE |
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597 #define UINT16_TYPE ((const char *) NULL) |
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598 #endif |
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599 |
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600 #ifndef UINT32_TYPE |
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601 #define UINT32_TYPE ((const char *) NULL) |
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602 #endif |
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603 |
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604 #ifndef UINT64_TYPE |
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605 #define UINT64_TYPE ((const char *) NULL) |
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606 #endif |
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607 |
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608 #ifndef INT_LEAST8_TYPE |
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609 #define INT_LEAST8_TYPE ((const char *) NULL) |
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610 #endif |
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611 |
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612 #ifndef INT_LEAST16_TYPE |
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613 #define INT_LEAST16_TYPE ((const char *) NULL) |
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614 #endif |
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615 |
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616 #ifndef INT_LEAST32_TYPE |
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617 #define INT_LEAST32_TYPE ((const char *) NULL) |
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618 #endif |
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619 |
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620 #ifndef INT_LEAST64_TYPE |
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621 #define INT_LEAST64_TYPE ((const char *) NULL) |
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622 #endif |
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623 |
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624 #ifndef UINT_LEAST8_TYPE |
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625 #define UINT_LEAST8_TYPE ((const char *) NULL) |
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626 #endif |
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627 |
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628 #ifndef UINT_LEAST16_TYPE |
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629 #define UINT_LEAST16_TYPE ((const char *) NULL) |
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630 #endif |
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631 |
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632 #ifndef UINT_LEAST32_TYPE |
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633 #define UINT_LEAST32_TYPE ((const char *) NULL) |
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634 #endif |
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635 |
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636 #ifndef UINT_LEAST64_TYPE |
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637 #define UINT_LEAST64_TYPE ((const char *) NULL) |
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638 #endif |
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639 |
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640 #ifndef INT_FAST8_TYPE |
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641 #define INT_FAST8_TYPE ((const char *) NULL) |
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642 #endif |
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643 |
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644 #ifndef INT_FAST16_TYPE |
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645 #define INT_FAST16_TYPE ((const char *) NULL) |
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646 #endif |
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647 |
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648 #ifndef INT_FAST32_TYPE |
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649 #define INT_FAST32_TYPE ((const char *) NULL) |
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650 #endif |
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651 |
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652 #ifndef INT_FAST64_TYPE |
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653 #define INT_FAST64_TYPE ((const char *) NULL) |
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654 #endif |
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655 |
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656 #ifndef UINT_FAST8_TYPE |
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657 #define UINT_FAST8_TYPE ((const char *) NULL) |
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658 #endif |
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659 |
|
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660 #ifndef UINT_FAST16_TYPE |
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661 #define UINT_FAST16_TYPE ((const char *) NULL) |
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662 #endif |
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663 |
|
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664 #ifndef UINT_FAST32_TYPE |
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665 #define UINT_FAST32_TYPE ((const char *) NULL) |
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666 #endif |
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667 |
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668 #ifndef UINT_FAST64_TYPE |
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669 #define UINT_FAST64_TYPE ((const char *) NULL) |
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670 #endif |
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671 |
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672 #ifndef INTPTR_TYPE |
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673 #define INTPTR_TYPE ((const char *) NULL) |
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674 #endif |
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675 |
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676 #ifndef UINTPTR_TYPE |
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677 #define UINTPTR_TYPE ((const char *) NULL) |
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678 #endif |
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679 |
| 0 | 680 /* Width in bits of a pointer. Mind the value of the macro `Pmode'. */ |
| 681 #ifndef POINTER_SIZE | |
| 682 #define POINTER_SIZE BITS_PER_WORD | |
| 683 #endif | |
| 684 | |
| 685 #ifndef PIC_OFFSET_TABLE_REGNUM | |
| 686 #define PIC_OFFSET_TABLE_REGNUM INVALID_REGNUM | |
| 687 #endif | |
| 688 | |
| 689 #ifndef TARGET_DLLIMPORT_DECL_ATTRIBUTES | |
| 690 #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 0 | |
| 691 #endif | |
| 692 | |
| 693 #ifndef TARGET_DECLSPEC | |
| 694 #if TARGET_DLLIMPORT_DECL_ATTRIBUTES | |
| 695 /* If the target supports the "dllimport" attribute, users are | |
| 696 probably used to the "__declspec" syntax. */ | |
| 697 #define TARGET_DECLSPEC 1 | |
| 698 #else | |
| 699 #define TARGET_DECLSPEC 0 | |
| 700 #endif | |
| 701 #endif | |
| 702 | |
| 703 /* By default, the preprocessor should be invoked the same way in C++ | |
| 704 as in C. */ | |
| 705 #ifndef CPLUSPLUS_CPP_SPEC | |
| 706 #ifdef CPP_SPEC | |
| 707 #define CPLUSPLUS_CPP_SPEC CPP_SPEC | |
| 708 #endif | |
| 709 #endif | |
| 710 | |
| 711 #ifndef ACCUMULATE_OUTGOING_ARGS | |
| 712 #define ACCUMULATE_OUTGOING_ARGS 0 | |
| 713 #endif | |
| 714 | |
| 715 /* Supply a default definition for PUSH_ARGS. */ | |
| 716 #ifndef PUSH_ARGS | |
| 717 #ifdef PUSH_ROUNDING | |
| 718 #define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS | |
| 719 #else | |
| 720 #define PUSH_ARGS 0 | |
| 721 #endif | |
| 722 #endif | |
| 723 | |
| 724 /* Decide whether a function's arguments should be processed | |
| 725 from first to last or from last to first. | |
| 726 | |
| 727 They should if the stack and args grow in opposite directions, but | |
| 728 only if we have push insns. */ | |
| 729 | |
| 730 #ifdef PUSH_ROUNDING | |
| 731 | |
| 732 #ifndef PUSH_ARGS_REVERSED | |
| 733 #if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD) | |
| 734 #define PUSH_ARGS_REVERSED PUSH_ARGS | |
| 735 #endif | |
| 736 #endif | |
| 737 | |
| 738 #endif | |
| 739 | |
| 740 #ifndef PUSH_ARGS_REVERSED | |
| 741 #define PUSH_ARGS_REVERSED 0 | |
| 742 #endif | |
| 743 | |
| 744 /* Default value for the alignment (in bits) a C conformant malloc has to | |
| 745 provide. This default is intended to be safe and always correct. */ | |
| 746 #ifndef MALLOC_ABI_ALIGNMENT | |
| 747 #define MALLOC_ABI_ALIGNMENT BITS_PER_WORD | |
| 748 #endif | |
| 749 | |
| 750 /* If PREFERRED_STACK_BOUNDARY is not defined, set it to STACK_BOUNDARY. | |
| 751 STACK_BOUNDARY is required. */ | |
| 752 #ifndef PREFERRED_STACK_BOUNDARY | |
| 753 #define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY | |
| 754 #endif | |
| 755 | |
| 756 /* Set INCOMING_STACK_BOUNDARY to PREFERRED_STACK_BOUNDARY if it is not | |
| 757 defined. */ | |
| 758 #ifndef INCOMING_STACK_BOUNDARY | |
| 759 #define INCOMING_STACK_BOUNDARY PREFERRED_STACK_BOUNDARY | |
| 760 #endif | |
| 761 | |
| 762 #ifndef TARGET_DEFAULT_PACK_STRUCT | |
| 763 #define TARGET_DEFAULT_PACK_STRUCT 0 | |
| 764 #endif | |
| 765 | |
| 766 /* By default, the C++ compiler will use function addresses in the | |
| 767 vtable entries. Setting this nonzero tells the compiler to use | |
| 768 function descriptors instead. The value of this macro says how | |
| 769 many words wide the descriptor is (normally 2). It is assumed | |
| 770 that the address of a function descriptor may be treated as a | |
| 771 pointer to a function. */ | |
| 772 #ifndef TARGET_VTABLE_USES_DESCRIPTORS | |
| 773 #define TARGET_VTABLE_USES_DESCRIPTORS 0 | |
| 774 #endif | |
| 775 | |
| 776 /* By default, the vtable entries are void pointers, the so the alignment | |
| 777 is the same as pointer alignment. The value of this macro specifies | |
| 778 the alignment of the vtable entry in bits. It should be defined only | |
| 779 when special alignment is necessary. */ | |
| 780 #ifndef TARGET_VTABLE_ENTRY_ALIGN | |
| 781 #define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE | |
| 782 #endif | |
| 783 | |
| 784 /* There are a few non-descriptor entries in the vtable at offsets below | |
| 785 zero. If these entries must be padded (say, to preserve the alignment | |
| 786 specified by TARGET_VTABLE_ENTRY_ALIGN), set this to the number of | |
| 787 words in each data entry. */ | |
| 788 #ifndef TARGET_VTABLE_DATA_ENTRY_DISTANCE | |
| 789 #define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1 | |
| 790 #endif | |
| 791 | |
| 792 /* Decide whether it is safe to use a local alias for a virtual function | |
| 793 when constructing thunks. */ | |
| 794 #ifndef TARGET_USE_LOCAL_THUNK_ALIAS_P | |
| 795 #ifdef ASM_OUTPUT_DEF | |
| 796 #define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 1 | |
| 797 #else | |
| 798 #define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 0 | |
| 799 #endif | |
| 800 #endif | |
| 801 | |
| 802 /* Select a format to encode pointers in exception handling data. We | |
| 803 prefer those that result in fewer dynamic relocations. Assume no | |
| 804 special support here and encode direct references. */ | |
| 805 #ifndef ASM_PREFERRED_EH_DATA_FORMAT | |
| 806 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr | |
| 807 #endif | |
| 808 | |
| 809 /* By default, the C++ compiler will use the lowest bit of the pointer | |
| 810 to function to indicate a pointer-to-member-function points to a | |
| 811 virtual member function. However, if FUNCTION_BOUNDARY indicates | |
| 812 function addresses aren't always even, the lowest bit of the delta | |
| 813 field will be used. */ | |
| 814 #ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION | |
| 815 #define TARGET_PTRMEMFUNC_VBIT_LOCATION \ | |
| 816 (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \ | |
| 817 ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta) | |
| 818 #endif | |
| 819 | |
| 820 #ifndef DEFAULT_GDB_EXTENSIONS | |
| 821 #define DEFAULT_GDB_EXTENSIONS 1 | |
| 822 #endif | |
| 823 | |
| 824 /* If more than one debugging type is supported, you must define | |
| 825 PREFERRED_DEBUGGING_TYPE to choose the default. */ | |
| 826 | |
| 827 #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) \ | |
| 828 + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO) \ | |
| 829 + defined (VMS_DEBUGGING_INFO)) | |
| 830 #ifndef PREFERRED_DEBUGGING_TYPE | |
| 831 #error You must define PREFERRED_DEBUGGING_TYPE | |
| 832 #endif /* no PREFERRED_DEBUGGING_TYPE */ | |
| 833 | |
| 834 /* If only one debugging format is supported, define PREFERRED_DEBUGGING_TYPE | |
| 835 here so other code needn't care. */ | |
| 836 #elif defined DBX_DEBUGGING_INFO | |
| 837 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
| 838 | |
| 839 #elif defined SDB_DEBUGGING_INFO | |
| 840 #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG | |
| 841 | |
| 842 #elif defined DWARF2_DEBUGGING_INFO | |
| 843 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
| 844 | |
| 845 #elif defined VMS_DEBUGGING_INFO | |
| 846 #define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG | |
| 847 | |
| 848 #elif defined XCOFF_DEBUGGING_INFO | |
| 849 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG | |
| 850 | |
| 851 #else | |
| 852 /* No debugging format is supported by this target. */ | |
| 853 #define PREFERRED_DEBUGGING_TYPE NO_DEBUG | |
| 854 #endif | |
| 855 | |
| 856 #ifndef LARGEST_EXPONENT_IS_NORMAL | |
| 857 #define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0 | |
| 858 #endif | |
| 859 | |
| 860 #ifndef ROUND_TOWARDS_ZERO | |
| 861 #define ROUND_TOWARDS_ZERO 0 | |
| 862 #endif | |
| 863 | |
| 864 #ifndef FLOAT_LIB_COMPARE_RETURNS_BOOL | |
| 865 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) false | |
| 866 #endif | |
| 867 | |
| 868 /* True if the targets integer-comparison functions return { 0, 1, 2 | |
| 869 } to indicate { <, ==, > }. False if { -1, 0, 1 } is used | |
| 870 instead. The libgcc routines are biased. */ | |
| 871 #ifndef TARGET_LIB_INT_CMP_BIASED | |
| 872 #define TARGET_LIB_INT_CMP_BIASED (true) | |
| 873 #endif | |
| 874 | |
| 875 /* If FLOAT_WORDS_BIG_ENDIAN is not defined in the header files, | |
| 876 then the word-endianness is the same as for integers. */ | |
| 877 #ifndef FLOAT_WORDS_BIG_ENDIAN | |
| 878 #define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN | |
| 879 #endif | |
| 880 | |
|
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881 #ifdef TARGET_FLT_EVAL_METHOD |
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882 #define TARGET_FLT_EVAL_METHOD_NON_DEFAULT 1 |
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883 #else |
| 0 | 884 #define TARGET_FLT_EVAL_METHOD 0 |
|
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885 #define TARGET_FLT_EVAL_METHOD_NON_DEFAULT 0 |
| 0 | 886 #endif |
| 887 | |
| 888 #ifndef TARGET_DEC_EVAL_METHOD | |
| 889 #define TARGET_DEC_EVAL_METHOD 2 | |
| 890 #endif | |
| 891 | |
| 892 #ifndef HOT_TEXT_SECTION_NAME | |
| 893 #define HOT_TEXT_SECTION_NAME ".text.hot" | |
| 894 #endif | |
| 895 | |
| 896 #ifndef UNLIKELY_EXECUTED_TEXT_SECTION_NAME | |
| 897 #define UNLIKELY_EXECUTED_TEXT_SECTION_NAME ".text.unlikely" | |
| 898 #endif | |
| 899 | |
| 900 #ifndef HAS_LONG_COND_BRANCH | |
| 901 #define HAS_LONG_COND_BRANCH 0 | |
| 902 #endif | |
| 903 | |
| 904 #ifndef HAS_LONG_UNCOND_BRANCH | |
| 905 #define HAS_LONG_UNCOND_BRANCH 0 | |
| 906 #endif | |
| 907 | |
| 908 /* By default, only attempt to parallelize bitwise operations, and | |
| 909 possibly adds/subtracts using bit-twiddling. */ | |
| 910 #ifndef UNITS_PER_SIMD_WORD | |
| 911 #define UNITS_PER_SIMD_WORD(MODE) UNITS_PER_WORD | |
| 912 #endif | |
| 913 | |
| 914 /* Determine whether __cxa_atexit, rather than atexit, is used to | |
| 915 register C++ destructors for local statics and global objects. */ | |
| 916 #ifndef DEFAULT_USE_CXA_ATEXIT | |
| 917 #define DEFAULT_USE_CXA_ATEXIT 0 | |
| 918 #endif | |
| 919 | |
| 920 /* If none of these macros are defined, the port must use the new | |
| 921 technique of defining constraints in the machine description. | |
| 922 tm_p.h will define those macros that machine-independent code | |
| 923 still uses. */ | |
| 924 #if !defined CONSTRAINT_LEN \ | |
| 925 && !defined REG_CLASS_FROM_LETTER \ | |
| 926 && !defined REG_CLASS_FROM_CONSTRAINT \ | |
| 927 && !defined CONST_OK_FOR_LETTER_P \ | |
| 928 && !defined CONST_OK_FOR_CONSTRAINT_P \ | |
| 929 && !defined CONST_DOUBLE_OK_FOR_LETTER_P \ | |
| 930 && !defined CONST_DOUBLE_OK_FOR_CONSTRAINT_P \ | |
| 931 && !defined EXTRA_CONSTRAINT \ | |
| 932 && !defined EXTRA_CONSTRAINT_STR \ | |
| 933 && !defined EXTRA_MEMORY_CONSTRAINT \ | |
| 934 && !defined EXTRA_ADDRESS_CONSTRAINT | |
| 935 | |
| 936 #define USE_MD_CONSTRAINTS | |
| 937 | |
| 938 #if GCC_VERSION >= 3000 && defined IN_GCC | |
| 939 /* These old constraint macros shouldn't appear anywhere in a | |
| 940 configuration using MD constraint definitions. */ | |
| 941 #pragma GCC poison REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \ | |
| 942 CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT | |
| 943 #endif | |
| 944 | |
| 945 #else /* old constraint mechanism in use */ | |
| 946 | |
| 947 /* Determine whether extra constraint letter should be handled | |
| 948 via address reload (like 'o'). */ | |
| 949 #ifndef EXTRA_MEMORY_CONSTRAINT | |
| 950 #define EXTRA_MEMORY_CONSTRAINT(C,STR) 0 | |
| 951 #endif | |
| 952 | |
| 953 /* Determine whether extra constraint letter should be handled | |
| 954 as an address (like 'p'). */ | |
| 955 #ifndef EXTRA_ADDRESS_CONSTRAINT | |
| 956 #define EXTRA_ADDRESS_CONSTRAINT(C,STR) 0 | |
| 957 #endif | |
| 958 | |
| 959 /* When a port defines CONSTRAINT_LEN, it should use DEFAULT_CONSTRAINT_LEN | |
| 960 for all the characters that it does not want to change, so things like the | |
| 961 'length' of a digit in a matching constraint is an implementation detail, | |
| 962 and not part of the interface. */ | |
| 963 #define DEFAULT_CONSTRAINT_LEN(C,STR) 1 | |
| 964 | |
| 965 #ifndef CONSTRAINT_LEN | |
| 966 #define CONSTRAINT_LEN(C,STR) DEFAULT_CONSTRAINT_LEN (C, STR) | |
| 967 #endif | |
| 968 | |
| 969 #if defined (CONST_OK_FOR_LETTER_P) && ! defined (CONST_OK_FOR_CONSTRAINT_P) | |
| 970 #define CONST_OK_FOR_CONSTRAINT_P(VAL,C,STR) CONST_OK_FOR_LETTER_P (VAL, C) | |
| 971 #endif | |
| 972 | |
| 973 #if defined (CONST_DOUBLE_OK_FOR_LETTER_P) && ! defined (CONST_DOUBLE_OK_FOR_CONSTRAINT_P) | |
| 974 #define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(OP,C,STR) \ | |
| 975 CONST_DOUBLE_OK_FOR_LETTER_P (OP, C) | |
| 976 #endif | |
| 977 | |
| 978 #ifndef REG_CLASS_FROM_CONSTRAINT | |
| 979 #define REG_CLASS_FROM_CONSTRAINT(C,STR) REG_CLASS_FROM_LETTER (C) | |
| 980 #endif | |
| 981 | |
| 982 #if defined (EXTRA_CONSTRAINT) && ! defined (EXTRA_CONSTRAINT_STR) | |
| 983 #define EXTRA_CONSTRAINT_STR(OP, C,STR) EXTRA_CONSTRAINT (OP, C) | |
| 984 #endif | |
| 985 | |
| 986 #endif /* old constraint mechanism in use */ | |
| 987 | |
| 988 #ifndef REGISTER_MOVE_COST | |
| 989 #define REGISTER_MOVE_COST(m, x, y) 2 | |
| 990 #endif | |
| 991 | |
| 992 /* Determine whether the entire c99 runtime | |
| 993 is present in the runtime library. */ | |
| 994 #ifndef TARGET_C99_FUNCTIONS | |
| 995 #define TARGET_C99_FUNCTIONS 0 | |
| 996 #endif | |
| 997 | |
| 998 /* Determine whether the target runtime library has | |
| 999 a sincos implementation following the GNU extension. */ | |
| 1000 #ifndef TARGET_HAS_SINCOS | |
| 1001 #define TARGET_HAS_SINCOS 0 | |
| 1002 #endif | |
| 1003 | |
| 1004 /* Indicate that CLZ and CTZ are undefined at zero. */ | |
| 1005 #ifndef CLZ_DEFINED_VALUE_AT_ZERO | |
| 1006 #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0 | |
| 1007 #endif | |
| 1008 #ifndef CTZ_DEFINED_VALUE_AT_ZERO | |
| 1009 #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0 | |
| 1010 #endif | |
| 1011 | |
| 1012 /* Provide a default value for STORE_FLAG_VALUE. */ | |
| 1013 #ifndef STORE_FLAG_VALUE | |
| 1014 #define STORE_FLAG_VALUE 1 | |
| 1015 #endif | |
| 1016 | |
| 1017 /* This macro is used to determine what the largest unit size that | |
| 1018 move_by_pieces can use is. */ | |
| 1019 | |
| 1020 /* MOVE_MAX_PIECES is the number of bytes at a time which we can | |
| 1021 move efficiently, as opposed to MOVE_MAX which is the maximum | |
| 1022 number of bytes we can move with a single instruction. */ | |
| 1023 | |
| 1024 #ifndef MOVE_MAX_PIECES | |
| 1025 #define MOVE_MAX_PIECES MOVE_MAX | |
| 1026 #endif | |
| 1027 | |
| 1028 #ifndef STACK_POINTER_OFFSET | |
| 1029 #define STACK_POINTER_OFFSET 0 | |
| 1030 #endif | |
| 1031 | |
| 1032 #ifndef LOCAL_REGNO | |
| 1033 #define LOCAL_REGNO(REGNO) 0 | |
| 1034 #endif | |
| 1035 | |
| 1036 /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, | |
| 1037 the stack pointer does not matter. The value is tested only in | |
| 1038 functions that have frame pointers. */ | |
| 1039 #ifndef EXIT_IGNORE_STACK | |
| 1040 #define EXIT_IGNORE_STACK 0 | |
| 1041 #endif | |
| 1042 | |
| 1043 /* Assume that case vectors are not pc-relative. */ | |
| 1044 #ifndef CASE_VECTOR_PC_RELATIVE | |
| 1045 #define CASE_VECTOR_PC_RELATIVE 0 | |
| 1046 #endif | |
| 1047 | |
| 1048 /* Assume that trampolines need function alignment. */ | |
| 1049 #ifndef TRAMPOLINE_ALIGNMENT | |
| 1050 #define TRAMPOLINE_ALIGNMENT FUNCTION_BOUNDARY | |
| 1051 #endif | |
| 1052 | |
| 1053 /* Register mappings for target machines without register windows. */ | |
| 1054 #ifndef INCOMING_REGNO | |
| 1055 #define INCOMING_REGNO(N) (N) | |
| 1056 #endif | |
| 1057 | |
| 1058 #ifndef OUTGOING_REGNO | |
| 1059 #define OUTGOING_REGNO(N) (N) | |
| 1060 #endif | |
| 1061 | |
| 1062 #ifndef SHIFT_COUNT_TRUNCATED | |
| 1063 #define SHIFT_COUNT_TRUNCATED 0 | |
| 1064 #endif | |
| 1065 | |
| 1066 #ifndef LEGITIMATE_PIC_OPERAND_P | |
| 1067 #define LEGITIMATE_PIC_OPERAND_P(X) 1 | |
| 1068 #endif | |
| 1069 | |
| 1070 #ifndef TARGET_MEM_CONSTRAINT | |
| 1071 #define TARGET_MEM_CONSTRAINT 'm' | |
| 1072 #endif | |
| 1073 | |
| 1074 #ifndef REVERSIBLE_CC_MODE | |
| 1075 #define REVERSIBLE_CC_MODE(MODE) 0 | |
| 1076 #endif | |
| 1077 | |
| 1078 /* Biggest alignment supported by the object file format of this machine. */ | |
| 1079 #ifndef MAX_OFILE_ALIGNMENT | |
| 1080 #define MAX_OFILE_ALIGNMENT BIGGEST_ALIGNMENT | |
| 1081 #endif | |
| 1082 | |
| 1083 #ifndef FRAME_GROWS_DOWNWARD | |
| 1084 #define FRAME_GROWS_DOWNWARD 0 | |
| 1085 #endif | |
| 1086 | |
| 1087 /* On most machines, the CFA coincides with the first incoming parm. */ | |
| 1088 #ifndef ARG_POINTER_CFA_OFFSET | |
|
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1089 #define ARG_POINTER_CFA_OFFSET(FNDECL) \ |
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1090 (FIRST_PARM_OFFSET (FNDECL) + crtl->args.pretend_args_size) |
| 0 | 1091 #endif |
| 1092 | |
| 1093 /* On most machines, we use the CFA as DW_AT_frame_base. */ | |
| 1094 #ifndef CFA_FRAME_BASE_OFFSET | |
| 1095 #define CFA_FRAME_BASE_OFFSET(FNDECL) 0 | |
| 1096 #endif | |
| 1097 | |
| 1098 /* The offset from the incoming value of %sp to the top of the stack frame | |
| 1099 for the current function. */ | |
| 1100 #ifndef INCOMING_FRAME_SP_OFFSET | |
| 1101 #define INCOMING_FRAME_SP_OFFSET 0 | |
| 1102 #endif | |
| 1103 | |
| 1104 #ifndef HARD_REGNO_NREGS_HAS_PADDING | |
| 1105 #define HARD_REGNO_NREGS_HAS_PADDING(REGNO, MODE) 0 | |
| 1106 #define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) -1 | |
| 1107 #endif | |
| 1108 | |
| 1109 #ifndef OUTGOING_REG_PARM_STACK_SPACE | |
| 1110 #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 0 | |
| 1111 #endif | |
| 1112 | |
| 1113 /* MAX_STACK_ALIGNMENT is the maximum stack alignment guaranteed by | |
| 1114 the backend. MAX_SUPPORTED_STACK_ALIGNMENT is the maximum best | |
| 1115 effort stack alignment supported by the backend. If the backend | |
| 1116 supports stack alignment, MAX_SUPPORTED_STACK_ALIGNMENT and | |
| 1117 MAX_STACK_ALIGNMENT are the same. Otherwise, the incoming stack | |
| 1118 boundary will limit the maximum guaranteed stack alignment. */ | |
| 1119 #ifdef MAX_STACK_ALIGNMENT | |
| 1120 #define MAX_SUPPORTED_STACK_ALIGNMENT MAX_STACK_ALIGNMENT | |
| 1121 #else | |
| 1122 #define MAX_STACK_ALIGNMENT STACK_BOUNDARY | |
| 1123 #define MAX_SUPPORTED_STACK_ALIGNMENT PREFERRED_STACK_BOUNDARY | |
| 1124 #endif | |
| 1125 | |
| 1126 #define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY) | |
| 1127 | |
| 1128 #ifndef LOCAL_ALIGNMENT | |
| 1129 #define LOCAL_ALIGNMENT(TYPE, ALIGNMENT) ALIGNMENT | |
| 1130 #endif | |
| 1131 | |
| 1132 #ifndef STACK_SLOT_ALIGNMENT | |
| 1133 #define STACK_SLOT_ALIGNMENT(TYPE,MODE,ALIGN) \ | |
| 1134 ((TYPE) ? LOCAL_ALIGNMENT ((TYPE), (ALIGN)) : (ALIGN)) | |
| 1135 #endif | |
| 1136 | |
| 1137 #ifndef LOCAL_DECL_ALIGNMENT | |
| 1138 #define LOCAL_DECL_ALIGNMENT(DECL) \ | |
| 1139 LOCAL_ALIGNMENT (TREE_TYPE (DECL), DECL_ALIGN (DECL)) | |
| 1140 #endif | |
| 1141 | |
|
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1142 #ifndef MINIMUM_ALIGNMENT |
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1143 #define MINIMUM_ALIGNMENT(EXP,MODE,ALIGN) (ALIGN) |
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1144 #endif |
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1145 |
| 0 | 1146 /* Alignment value for attribute ((aligned)). */ |
| 1147 #ifndef ATTRIBUTE_ALIGNED_VALUE | |
| 1148 #define ATTRIBUTE_ALIGNED_VALUE BIGGEST_ALIGNMENT | |
| 1149 #endif | |
| 1150 | |
|
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1151 /* Many ports have no mode-dependent addresses (except possibly autoincrement |
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1152 and autodecrement addresses, which are handled by target-independent code |
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1153 in recog.c). */ |
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1154 #ifndef GO_IF_MODE_DEPENDENT_ADDRESS |
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1155 #define GO_IF_MODE_DEPENDENT_ADDRESS(X, WIN) |
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1156 #endif |
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1157 |
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1158 /* For most ports anything that evaluates to a constant symbolic |
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1159 or integer value is acceptable as a constant address. */ |
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1160 #ifndef CONSTANT_ADDRESS_P |
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1161 #define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE) |
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1162 #endif |
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1163 |
| 0 | 1164 #endif /* ! GCC_DEFAULTS_H */ |