* common.opt (flag_gcse_sm): Disable by default.
[official-gcc.git] / gcc / system.h
blob7e002a1157cc41c1a5e420e1bbcb33cfeb675088
1 /* Get common system includes and various definitions and declarations based
2 on autoconf macros.
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
11 version.
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
21 02111-1307, USA. */
24 #ifndef GCC_SYSTEM_H
25 #define GCC_SYSTEM_H
27 /* We must include stdarg.h before stdio.h. */
28 #include <stdarg.h>
30 #ifndef va_copy
31 # ifdef __va_copy
32 # define va_copy(d,s) __va_copy((d),(s))
33 # else
34 # define va_copy(d,s) ((d) = (s))
35 # endif
36 #endif
38 #ifdef HAVE_STDDEF_H
39 # include <stddef.h>
40 #endif
42 #include <stdio.h>
44 /* Define a generic NULL if one hasn't already been defined. */
45 #ifndef NULL
46 #define NULL 0
47 #endif
49 /* The compiler is not a multi-threaded application and therefore we
50 do not have to use the locking functions. In fact, using the locking
51 functions can cause the compiler to be significantly slower under
52 I/O bound conditions (such as -g -O0 on very large source files).
54 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
55 code is multi-thread safe by default. If it is set to 0, then do
56 not worry about using the _unlocked functions.
58 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
59 extensions and need to be prototyped by hand (since we do not
60 define _GNU_SOURCE). */
62 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
64 # ifdef HAVE_PUTC_UNLOCKED
65 # undef putc
66 # define putc(C, Stream) putc_unlocked (C, Stream)
67 # endif
68 # ifdef HAVE_FPUTC_UNLOCKED
69 # undef fputc
70 # define fputc(C, Stream) fputc_unlocked (C, Stream)
71 # endif
73 # ifdef HAVE_FPUTS_UNLOCKED
74 # undef fputs
75 # define fputs(String, Stream) fputs_unlocked (String, Stream)
76 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
77 extern int fputs_unlocked (const char *, FILE *);
78 # endif
79 # endif
80 # ifdef HAVE_FWRITE_UNLOCKED
81 # undef fwrite
82 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
83 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
84 extern int fwrite_unlocked (const void *, size_t, size_t, FILE *);
85 # endif
86 # endif
87 # ifdef HAVE_FPRINTF_UNLOCKED
88 # undef fprintf
89 /* We can't use a function-like macro here because we don't know if
90 we have varargs macros. */
91 # define fprintf fprintf_unlocked
92 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
93 extern int fprintf_unlocked (FILE *, const char *, ...);
94 # endif
95 # endif
97 #endif
99 /* ??? Glibc's fwrite/fread_unlocked macros cause
100 "warning: signed and unsigned type in conditional expression". */
101 #undef fread_unlocked
102 #undef fwrite_unlocked
104 /* There are an extraordinary number of issues with <ctype.h>.
105 The last straw is that it varies with the locale. Use libiberty's
106 replacement instead. */
107 #include <safe-ctype.h>
109 #include <sys/types.h>
111 #include <errno.h>
113 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
114 extern int errno;
115 #endif
117 /* Some of glibc's string inlines cause warnings. Plus we'd rather
118 rely on (and therefore test) GCC's string builtins. */
119 #define __NO_STRING_INLINES
121 #ifdef STRING_WITH_STRINGS
122 # include <string.h>
123 # include <strings.h>
124 #else
125 # ifdef HAVE_STRING_H
126 # include <string.h>
127 # else
128 # ifdef HAVE_STRINGS_H
129 # include <strings.h>
130 # endif
131 # endif
132 #endif
134 #ifdef HAVE_STDLIB_H
135 # include <stdlib.h>
136 #endif
138 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
139 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
140 or 0 and 1 if those macros are not defined. */
141 #ifndef SUCCESS_EXIT_CODE
142 # ifdef EXIT_SUCCESS
143 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
144 # else
145 # define SUCCESS_EXIT_CODE 0
146 # endif
147 #endif
149 #ifndef FATAL_EXIT_CODE
150 # ifdef EXIT_FAILURE
151 # define FATAL_EXIT_CODE EXIT_FAILURE
152 # else
153 # define FATAL_EXIT_CODE 1
154 # endif
155 #endif
157 #ifdef HAVE_UNISTD_H
158 # include <unistd.h>
159 #endif
161 #ifdef HAVE_SYS_PARAM_H
162 # include <sys/param.h>
163 /* We use this identifier later and it appears in some vendor param.h's. */
164 # undef PREFETCH
165 #endif
167 #if HAVE_LIMITS_H
168 # include <limits.h>
169 #endif
171 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
172 #include "hwint.h"
174 /* A macro to determine whether a VALUE lies inclusively within a
175 certain range without evaluating the VALUE more than once. This
176 macro won't warn if the VALUE is unsigned and the LOWER bound is
177 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
178 bound *is* evaluated twice, and LOWER must not be greater than
179 UPPER. However the bounds themselves can be either positive or
180 negative. */
181 #define IN_RANGE(VALUE, LOWER, UPPER) \
182 ((unsigned HOST_WIDE_INT) ((VALUE) - (LOWER)) <= ((UPPER) - (LOWER)))
184 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
185 macros defined with these cannot be used in #if. */
187 /* The extra casts work around common compiler bugs. */
188 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
189 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
190 It is necessary at least when t == time_t. */
191 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
192 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
193 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
195 /* Use that infrastructure to provide a few constants. */
196 #ifndef UCHAR_MAX
197 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
198 #endif
200 #ifdef TIME_WITH_SYS_TIME
201 # include <sys/time.h>
202 # include <time.h>
203 #else
204 # if HAVE_SYS_TIME_H
205 # include <sys/time.h>
206 # else
207 # ifdef HAVE_TIME_H
208 # include <time.h>
209 # endif
210 # endif
211 #endif
213 #ifdef HAVE_FCNTL_H
214 # include <fcntl.h>
215 #else
216 # ifdef HAVE_SYS_FILE_H
217 # include <sys/file.h>
218 # endif
219 #endif
221 #ifndef SEEK_SET
222 # define SEEK_SET 0
223 # define SEEK_CUR 1
224 # define SEEK_END 2
225 #endif
226 #ifndef F_OK
227 # define F_OK 0
228 # define X_OK 1
229 # define W_OK 2
230 # define R_OK 4
231 #endif
232 #ifndef O_RDONLY
233 # define O_RDONLY 0
234 #endif
235 #ifndef O_WRONLY
236 # define O_WRONLY 1
237 #endif
239 /* Some systems define these in, e.g., param.h. We undefine these names
240 here to avoid the warnings. We prefer to use our definitions since we
241 know they are correct. */
243 #undef MIN
244 #undef MAX
245 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
246 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
248 /* Returns the least number N such that N * Y >= X. */
249 #define CEIL(x,y) (((x) + (y) - 1) / (y))
251 #ifdef HAVE_SYS_WAIT_H
252 #include <sys/wait.h>
253 #endif
255 #ifndef WIFSIGNALED
256 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
257 #endif
258 #ifndef WTERMSIG
259 #define WTERMSIG(S) ((S) & 0x7f)
260 #endif
261 #ifndef WIFEXITED
262 #define WIFEXITED(S) (((S) & 0xff) == 0)
263 #endif
264 #ifndef WEXITSTATUS
265 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
266 #endif
267 #ifndef WSTOPSIG
268 #define WSTOPSIG WEXITSTATUS
269 #endif
270 #ifndef WCOREDUMP
271 #define WCOREDUMP(S) ((S) & WCOREFLG)
272 #endif
273 #ifndef WCOREFLG
274 #define WCOREFLG 0200
275 #endif
277 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
278 are defined to 0 then we must provide the relevant declaration
279 here. These checks will be in the undefined state while configure
280 is running so be careful to test "defined (HAVE_DECL_*)". */
282 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
283 extern double atof (const char *);
284 #endif
286 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
287 extern long atol (const char *);
288 #endif
290 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
291 extern void free (void *);
292 #endif
294 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
295 extern char *getcwd (char *, size_t);
296 #endif
298 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
299 extern char *getenv (const char *);
300 #endif
302 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
303 extern int getopt (int, char * const *, const char *);
304 #endif
306 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
307 extern int getpagesize (void);
308 #endif
310 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
311 extern char *getwd (char *);
312 #endif
314 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
315 extern void *sbrk (int);
316 #endif
318 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
319 extern char *strstr (const char *, const char *);
320 #endif
322 #ifdef HAVE_MALLOC_H
323 #include <malloc.h>
324 #endif
326 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
327 extern void *malloc (size_t);
328 #endif
330 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
331 extern void *calloc (size_t, size_t);
332 #endif
334 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
335 extern void *realloc (void *, size_t);
336 #endif
338 /* If the system doesn't provide strsignal, we get it defined in
339 libiberty but no declaration is supplied. */
340 #if !defined (HAVE_STRSIGNAL) \
341 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
342 # ifndef strsignal
343 extern const char *strsignal (int);
344 # endif
345 #endif
347 #ifdef HAVE_GETRLIMIT
348 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
349 # ifndef getrlimit
350 struct rlimit;
351 extern int getrlimit (int, struct rlimit *);
352 # endif
353 # endif
354 #endif
356 #ifdef HAVE_SETRLIMIT
357 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
358 # ifndef setrlimit
359 struct rlimit;
360 extern int setrlimit (int, const struct rlimit *);
361 # endif
362 # endif
363 #endif
365 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
366 extern void abort (void);
367 #endif
369 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
370 extern int snprintf (char *, size_t, const char *, ...);
371 #endif
373 /* 1 if we have C99 designated initializers. */
374 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
375 #define HAVE_DESIGNATED_INITIALIZERS \
376 ((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
377 #endif
379 #if HAVE_SYS_STAT_H
380 # include <sys/stat.h>
381 #endif
383 /* Test if something is a normal file. */
384 #ifndef S_ISREG
385 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
386 #endif
388 /* Test if something is a directory. */
389 #ifndef S_ISDIR
390 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
391 #endif
393 /* Test if something is a character special file. */
394 #ifndef S_ISCHR
395 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
396 #endif
398 /* Test if something is a block special file. */
399 #ifndef S_ISBLK
400 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
401 #endif
403 /* Test if something is a socket. */
404 #ifndef S_ISSOCK
405 # ifdef S_IFSOCK
406 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
407 # else
408 # define S_ISSOCK(m) 0
409 # endif
410 #endif
412 /* Test if something is a FIFO. */
413 #ifndef S_ISFIFO
414 # ifdef S_IFIFO
415 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
416 # else
417 # define S_ISFIFO(m) 0
418 # endif
419 #endif
421 /* Define well known filenos if the system does not define them. */
422 #ifndef STDIN_FILENO
423 # define STDIN_FILENO 0
424 #endif
425 #ifndef STDOUT_FILENO
426 # define STDOUT_FILENO 1
427 #endif
428 #ifndef STDERR_FILENO
429 # define STDERR_FILENO 2
430 #endif
432 /* Some systems have mkdir that takes a single argument. */
433 #ifdef MKDIR_TAKES_ONE_ARG
434 # define mkdir(a,b) mkdir(a)
435 #endif
437 /* Provide a way to print an address via printf. */
438 #ifndef HOST_PTR_PRINTF
439 # ifdef HAVE_PRINTF_PTR
440 # define HOST_PTR_PRINTF "%p"
441 # elif SIZEOF_INT == SIZEOF_VOID_P
442 # define HOST_PTR_PRINTF "%x"
443 # elif SIZEOF_LONG == SIZEOF_VOID_P
444 # define HOST_PTR_PRINTF "%lx"
445 # else
446 # define HOST_PTR_PRINTF "%llx"
447 # endif
448 #endif /* ! HOST_PTR_PRINTF */
450 /* By default, colon separates directories in a path. */
451 #ifndef PATH_SEPARATOR
452 #define PATH_SEPARATOR ':'
453 #endif
455 /* Filename handling macros. */
456 #include "filenames.h"
458 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
459 #ifndef DIR_SEPARATOR
460 # define DIR_SEPARATOR '/'
461 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
462 # define DIR_SEPARATOR_2 '\\'
463 # endif
464 #endif
466 /* Get libiberty declarations. */
467 #include "libiberty.h"
469 /* Provide a default for the HOST_BIT_BUCKET.
470 This suffices for POSIX-like hosts. */
472 #ifndef HOST_BIT_BUCKET
473 #define HOST_BIT_BUCKET "/dev/null"
474 #endif
476 /* Be conservative and only use enum bitfields with GCC.
477 FIXME: provide a complete autoconf test for buggy enum bitfields. */
479 #if (GCC_VERSION > 2000)
480 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
481 #else
482 #define ENUM_BITFIELD(TYPE) unsigned int
483 #endif
485 #ifndef offsetof
486 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
487 #endif
489 /* Various error reporting routines want to use __FUNCTION__. */
490 #if (GCC_VERSION < 2007)
491 #ifndef __FUNCTION__
492 #define __FUNCTION__ "?"
493 #endif /* ! __FUNCTION__ */
494 #endif
496 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
497 the most likely value of A is B. This feature was added at some point
498 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
499 #if (GCC_VERSION < 3000)
500 #define __builtin_expect(a, b) (a)
501 #endif
503 /* Redefine abort to report an internal error w/o coredump, and
504 reporting the location of the error in the source file. */
505 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
506 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
508 /* Use gcc_assert(EXPR) to test invariants. */
509 #if ENABLE_ASSERT_CHECKING
510 #define gcc_assert(EXPR) \
511 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
512 #else
513 /* Include EXPR, so that unused variable warnings do not occur. */
514 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
515 #endif
517 /* Use gcc_unreachable() to mark unreachable locations (like an
518 unreachable default case of a switch. Do not use gcc_assert(0). */
519 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
521 /* Provide a fake boolean type. We make no attempt to use the
522 C99 _Bool, as it may not be available in the bootstrap compiler,
523 and even if it is, it is liable to be buggy.
524 This must be after all inclusion of system headers, as some of
525 them will mess us up. */
527 #undef TRUE
528 #undef FALSE
530 #ifdef __cplusplus
531 /* Obsolete. */
532 # define TRUE true
533 # define FALSE false
534 #else /* !__cplusplus */
535 # undef bool
536 # undef true
537 # undef false
539 # define bool unsigned char
540 # define true 1
541 # define false 0
543 /* Obsolete. */
544 # define TRUE true
545 # define FALSE false
546 #endif /* !__cplusplus */
549 /* Some compilers do not allow the use of unsigned char in bitfields. */
550 #define BOOL_BITFIELD unsigned int
552 /* As the last action in this file, we poison the identifiers that
553 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
554 preprocessor won't trip on poisoned identifiers that arrive from
555 the expansion of macros. E.g. #define strrchr rindex, won't error
556 if rindex is poisoned after this directive is issued and later on
557 strrchr is called.
559 Note: We define bypass macros for the few cases where we really
560 want to use the libc memory allocation routines. Otherwise we
561 insist you use the "x" versions from libiberty. */
563 #define really_call_malloc malloc
564 #define really_call_calloc calloc
565 #define really_call_realloc realloc
567 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
568 /* Flex and bison use malloc and realloc. Yuk. Note that this means
569 really_call_* cannot be used in a .l or .y file. */
570 #define malloc xmalloc
571 #define realloc xrealloc
572 #endif
574 #if (GCC_VERSION >= 3000)
576 /* Note autoconf checks for prototype declarations and includes
577 system.h while doing so. Only poison these tokens if actually
578 compiling gcc, so that the autoconf declaration tests for malloc
579 etc don't spuriously fail. */
580 #ifdef IN_GCC
581 #undef calloc
582 #undef strdup
583 #pragma GCC poison calloc strdup
585 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
586 #undef malloc
587 #undef realloc
588 #pragma GCC poison malloc realloc
589 #endif
591 /* Old target macros that have moved to the target hooks structure. */
592 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
593 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
594 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
595 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
596 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
597 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
598 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
599 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
600 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
601 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
602 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
603 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
604 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
605 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
606 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
607 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
608 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
609 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
610 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS \
611 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
612 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
613 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
614 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
615 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
616 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
617 VECTOR_MODE_SUPPORTED_P
619 /* Other obsolete target macros, or macros that used to be in target
620 headers and were not used, and may be obsolete or may never have
621 been used. */
622 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
623 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
624 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
625 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
626 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
627 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
628 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
629 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
630 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
631 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
632 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
633 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP \
634 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL ASM_OUTPUT_INTERNAL_LABEL \
635 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
636 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
637 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
638 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
639 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
640 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
641 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
642 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
643 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
644 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
645 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
646 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
647 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
648 MAX_WCHAR_TYPE_SIZE GCOV_TYPE_SIZE SHARED_SECTION_ASM_OP \
649 INTEGRATE_THRESHOLD \
650 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
651 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
652 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
653 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
654 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
655 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG
657 /* Hooks that are no longer used. */
658 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
659 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
660 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
661 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
662 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
663 LANG_HOOKS_POPLEVEL
665 /* Libiberty macros that are no longer used in GCC. */
666 #undef ANSI_PROTOTYPES
667 #undef PTR_CONST
668 #undef LONG_DOUBLE
669 #undef VPARAMS
670 #undef VA_OPEN
671 #undef VA_FIXEDARG
672 #undef VA_CLOSE
673 #undef VA_START
674 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
675 VA_FIXEDARG VA_CLOSE VA_START
676 #endif /* IN_GCC */
678 /* Note: not all uses of the `index' token (e.g. variable names and
679 structure members) have been eliminated. */
680 #undef bcopy
681 #undef bzero
682 #undef bcmp
683 #undef rindex
684 #pragma GCC poison bcopy bzero bcmp rindex
686 #endif /* GCC >= 3.0 */
688 #endif /* ! GCC_SYSTEM_H */