e39a6f928e927e0f805115ba6c4850a2e584aef8
1 /* Get common system includes and various definitions and declarations based
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008,
5 Free Software Foundation, Inc.
7 This file is part of GCC.
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
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
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
27 /* We must include stdarg.h before stdio.h. */
32 # define va_copy(d,s) __va_copy((d),(s))
34 # define va_copy(d,s) ((d) = (s))
44 /* Define a generic NULL if one hasn't already been defined. */
49 /* Use the unlocked open routines from libiberty. */
50 #ifdef fopen /* fopen is a #define on VMS. */
53 #define fopen(PATH,MODE) fopen_unlocked(PATH,MODE)
54 #define fdopen(FILDES,MODE) fdopen_unlocked(FILDES,MODE)
55 #define freopen(PATH,MODE,STREAM) freopen_unlocked(PATH,MODE,STREAM)
57 /* The compiler is not a multi-threaded application and therefore we
58 do not have to use the locking functions. In fact, using the locking
59 functions can cause the compiler to be significantly slower under
60 I/O bound conditions (such as -g -O0 on very large source files).
62 HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
63 code is multi-thread safe by default. If it is set to 0, then do
64 not worry about using the _unlocked functions.
66 fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
67 extensions and need to be prototyped by hand (since we do not
68 define _GNU_SOURCE). */
70 #if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
72 # ifdef HAVE_PUTC_UNLOCKED
74 # define putc(C, Stream) putc_unlocked (C, Stream)
76 # ifdef HAVE_PUTCHAR_UNLOCKED
78 # define putchar(C) putchar_unlocked (C)
80 # ifdef HAVE_GETC_UNLOCKED
82 # define getc(Stream) getc_unlocked (Stream)
84 # ifdef HAVE_GETCHAR_UNLOCKED
86 # define getchar() getchar_unlocked ()
88 # ifdef HAVE_FPUTC_UNLOCKED
90 # define fputc(C, Stream) fputc_unlocked (C, Stream)
93 # ifdef HAVE_CLEARERR_UNLOCKED
95 # define clearerr(Stream) clearerr_unlocked (Stream)
96 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
97 extern void clearerr_unlocked (FILE *);
100 # ifdef HAVE_FEOF_UNLOCKED
102 # define feof(Stream) feof_unlocked (Stream)
103 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
104 extern int feof_unlocked (FILE *);
107 # ifdef HAVE_FILENO_UNLOCKED
109 # define fileno(Stream) fileno_unlocked (Stream)
110 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
111 extern int fileno_unlocked (FILE *);
114 # ifdef HAVE_FFLUSH_UNLOCKED
116 # define fflush(Stream) fflush_unlocked (Stream)
117 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
118 extern int fflush_unlocked (FILE *);
121 # ifdef HAVE_FGETC_UNLOCKED
123 # define fgetc(Stream) fgetc_unlocked (Stream)
124 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
125 extern int fgetc_unlocked (FILE *);
128 # ifdef HAVE_FGETS_UNLOCKED
130 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
131 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
132 extern char *fgets_unlocked (char *, int, FILE *);
135 # ifdef HAVE_FPUTS_UNLOCKED
137 # define fputs(String, Stream) fputs_unlocked (String, Stream)
138 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
139 extern int fputs_unlocked (const char *, FILE *);
142 # ifdef HAVE_FERROR_UNLOCKED
144 # define ferror(Stream) ferror_unlocked (Stream)
145 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
146 extern int ferror_unlocked (FILE *);
149 # ifdef HAVE_FREAD_UNLOCKED
151 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
152 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
153 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
156 # ifdef HAVE_FWRITE_UNLOCKED
158 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
159 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
160 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
163 # ifdef HAVE_FPRINTF_UNLOCKED
165 /* We can't use a function-like macro here because we don't know if
166 we have varargs macros. */
167 # define fprintf fprintf_unlocked
168 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
169 extern int fprintf_unlocked (FILE *, const char *, ...);
175 /* ??? Glibc's fwrite/fread_unlocked macros cause
176 "warning: signed and unsigned type in conditional expression". */
177 #undef fread_unlocked
178 #undef fwrite_unlocked
180 /* There are an extraordinary number of issues with <ctype.h>.
181 The last straw is that it varies with the locale. Use libiberty's
182 replacement instead. */
183 #include "safe-ctype.h"
185 #include <sys/types.h>
189 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
197 /* Some of glibc's string inlines cause warnings. Plus we'd rather
198 rely on (and therefore test) GCC's string builtins. */
199 #define __NO_STRING_INLINES
201 #ifdef STRING_WITH_STRINGS
203 # include <strings.h>
205 # ifdef HAVE_STRING_H
208 # ifdef HAVE_STRINGS_H
209 # include <strings.h>
218 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
219 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
220 or 0 and 1 if those macros are not defined. */
221 #ifndef SUCCESS_EXIT_CODE
223 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
225 # define SUCCESS_EXIT_CODE 0
229 #ifndef FATAL_EXIT_CODE
231 # define FATAL_EXIT_CODE EXIT_FAILURE
233 # define FATAL_EXIT_CODE 1
237 #define ICE_EXIT_CODE 4
243 #ifdef HAVE_SYS_PARAM_H
244 # include <sys/param.h>
245 /* We use this identifier later and it appears in some vendor param.h's. */
253 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
256 /* A macro to determine whether a VALUE lies inclusively within a
257 certain range without evaluating the VALUE more than once. This
258 macro won't warn if the VALUE is unsigned and the LOWER bound is
259 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
260 bound *is* evaluated twice, and LOWER must not be greater than
261 UPPER. However the bounds themselves can be either positive or
263 #define IN_RANGE(VALUE, LOWER, UPPER) \
264 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
265 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
267 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
268 macros defined with these cannot be used in #if. */
270 /* The extra casts work around common compiler bugs. */
271 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
272 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
273 It is necessary at least when t == time_t. */
274 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
275 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
276 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
278 /* Use that infrastructure to provide a few constants. */
280 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
283 #ifdef TIME_WITH_SYS_TIME
284 # include <sys/time.h>
288 # include <sys/time.h>
299 # ifdef HAVE_SYS_FILE_H
300 # include <sys/file.h>
325 /* Some systems define these in, e.g., param.h. We undefine these names
326 here to avoid the warnings. We prefer to use our definitions since we
327 know they are correct. */
331 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
332 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
334 /* Returns the least number N such that N * Y >= X. */
335 #define CEIL(x,y) (((x) + (y) - 1) / (y))
337 #ifdef HAVE_SYS_WAIT_H
338 #include <sys/wait.h>
342 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
345 #define WTERMSIG(S) ((S) & 0x7f)
348 #define WIFEXITED(S) (((S) & 0xff) == 0)
351 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
354 #define WSTOPSIG WEXITSTATUS
357 #define WCOREDUMP(S) ((S) & WCOREFLG)
360 #define WCOREFLG 0200
364 #if !defined (SIGCHLD) && defined (SIGCLD)
365 # define SIGCHLD SIGCLD
368 #ifdef HAVE_SYS_MMAN_H
369 # include <sys/mman.h>
373 # define MAP_FAILED ((void *)-1)
376 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
377 # define MAP_ANONYMOUS MAP_ANON
380 #ifdef HAVE_SYS_RESOURCE_H
381 # include <sys/resource.h>
384 #ifdef HAVE_SYS_TIMES_H
385 # include <sys/times.h>
388 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
389 are defined to 0 then we must provide the relevant declaration
390 here. These checks will be in the undefined state while configure
391 is running so be careful to test "defined (HAVE_DECL_*)". */
393 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
394 extern double atof (const char *);
397 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
398 extern long atol (const char *);
401 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
402 extern void free (void *);
405 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
406 extern char *getcwd (char *, size_t);
409 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
410 extern char *getenv (const char *);
413 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
414 extern int getopt (int, char * const *, const char *);
417 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
418 extern int getpagesize (void);
421 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
422 extern char *getwd (char *);
425 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
426 extern void *sbrk (int);
429 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
430 extern char *strstr (const char *, const char *);
437 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
438 extern void *malloc (size_t);
441 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
442 extern void *calloc (size_t, size_t);
445 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
446 extern void *realloc (void *, size_t);
453 #ifdef HAVE_INTTYPES_H
454 #include <inttypes.h>
457 /* If the system doesn't provide strsignal, we get it defined in
458 libiberty but no declaration is supplied. */
459 #if !defined (HAVE_STRSIGNAL) \
460 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
462 extern const char *strsignal (int);
466 #ifdef HAVE_GETRLIMIT
467 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
470 extern int getrlimit (int, struct rlimit
*);
475 #ifdef HAVE_SETRLIMIT
476 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
479 extern int setrlimit (int, const struct rlimit
*);
484 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
485 extern void abort (void);
488 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
489 extern int snprintf (char *, size_t, const char *, ...);
492 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
493 extern int vsnprintf(char *, size_t, const char *, va_list);
496 /* 1 if we have C99 designated initializers. */
497 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
498 #define HAVE_DESIGNATED_INITIALIZERS \
499 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
500 && !defined(__cplusplus))
504 # include <sys/stat.h>
507 /* Test if something is a normal file. */
509 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
512 /* Test if something is a directory. */
514 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
517 /* Test if something is a character special file. */
519 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
522 /* Test if something is a block special file. */
524 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
527 /* Test if something is a socket. */
530 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
532 # define S_ISSOCK(m) 0
536 /* Test if something is a FIFO. */
539 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
541 # define S_ISFIFO(m) 0
545 /* Define well known filenos if the system does not define them. */
547 # define STDIN_FILENO 0
549 #ifndef STDOUT_FILENO
550 # define STDOUT_FILENO 1
552 #ifndef STDERR_FILENO
553 # define STDERR_FILENO 2
556 /* Some systems have mkdir that takes a single argument. */
557 #ifdef MKDIR_TAKES_ONE_ARG
558 # define mkdir(a,b) mkdir(a)
562 # define kill(p,s) raise(s)
565 /* Provide a way to print an address via printf. */
566 #ifndef HOST_PTR_PRINTF
567 #define HOST_PTR_PRINTF "%p"
568 #endif /* ! HOST_PTR_PRINTF */
570 /* By default, colon separates directories in a path. */
571 #ifndef PATH_SEPARATOR
572 #define PATH_SEPARATOR ':'
575 /* Filename handling macros. */
576 #include "filenames.h"
578 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
579 #ifndef DIR_SEPARATOR
580 # define DIR_SEPARATOR '/'
581 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
582 # define DIR_SEPARATOR_2 '\\'
586 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
587 /* If plugin support is enabled, we could use libdl. */
591 /* Get libiberty declarations. */
592 #include "libiberty.h"
594 /* Provide a default for the HOST_BIT_BUCKET.
595 This suffices for POSIX-like hosts. */
597 #ifndef HOST_BIT_BUCKET
598 #define HOST_BIT_BUCKET "/dev/null"
602 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
605 /* Various error reporting routines want to use __FUNCTION__. */
606 #if (GCC_VERSION < 2007)
608 #define __FUNCTION__ "?"
609 #endif /* ! __FUNCTION__ */
612 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
613 the most likely value of A is B. This feature was added at some point
614 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
615 #if (GCC_VERSION < 3000)
616 #define __builtin_expect(a, b) (a)
619 /* Redefine abort to report an internal error w/o coredump, and
620 reporting the location of the error in the source file. */
621 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN
;
622 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
624 /* Use gcc_assert(EXPR) to test invariants. */
625 #if ENABLE_ASSERT_CHECKING
626 #define gcc_assert(EXPR) \
627 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
628 #elif (GCC_VERSION >= 4005)
629 #define gcc_assert(EXPR) \
630 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0))
632 /* Include EXPR, so that unused variable warnings do not occur. */
633 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
636 #ifdef ENABLE_CHECKING
637 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
639 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
642 /* Use gcc_unreachable() to mark unreachable locations (like an
643 unreachable default case of a switch. Do not use gcc_assert(0). */
644 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
645 #define gcc_unreachable() __builtin_unreachable()
647 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
650 /* Provide a fake boolean type. We make no attempt to use the
651 C99 _Bool, as it may not be available in the bootstrap compiler,
652 and even if it is, it is liable to be buggy.
653 This must be after all inclusion of system headers, as some of
654 them will mess us up. */
663 #else /* !__cplusplus */
668 # define bool unsigned char
675 #endif /* !__cplusplus */
677 /* Some compilers do not allow the use of unsigned char in bitfields. */
678 #define BOOL_BITFIELD unsigned int
680 /* As the last action in this file, we poison the identifiers that
681 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
682 preprocessor won't trip on poisoned identifiers that arrive from
683 the expansion of macros. E.g. #define strrchr rindex, won't error
684 if rindex is poisoned after this directive is issued and later on
687 Note: We define bypass macros for the few cases where we really
688 want to use the libc memory allocation routines. Otherwise we
689 insist you use the "x" versions from libiberty. */
691 #define really_call_malloc malloc
692 #define really_call_calloc calloc
693 #define really_call_realloc realloc
695 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
696 /* Flex and bison use malloc and realloc. Yuk. Note that this means
697 really_call_* cannot be used in a .l or .y file. */
698 #define malloc xmalloc
699 #define realloc xrealloc
702 #if (GCC_VERSION >= 3000)
704 /* Note autoconf checks for prototype declarations and includes
705 system.h while doing so. Only poison these tokens if actually
706 compiling gcc, so that the autoconf declaration tests for malloc
707 etc don't spuriously fail. */
711 #pragma GCC poison calloc strdup
713 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
716 #pragma GCC poison malloc realloc
719 /* The %m format should be used when GCC's main diagnostic functions
720 supporting %m are available, and xstrerror from libiberty
723 #pragma GCC poison strerror
725 /* Old target macros that have moved to the target hooks structure. */
726 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
727 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
728 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
729 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
730 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
731 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
732 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
733 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
734 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
735 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
736 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
737 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
738 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
739 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
740 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
741 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
742 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
743 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
744 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
745 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
746 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
747 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
748 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
749 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
750 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
751 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
752 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
753 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
754 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
755 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
756 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
757 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
758 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
759 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \
760 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \
761 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
762 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P
764 /* Target macros only used for code built for the target, that have
765 moved to libgcc-tm.h or have never been present elsewhere. */
766 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX
768 /* Other obsolete target macros, or macros that used to be in target
769 headers and were not used, and may be obsolete or may never have
771 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
772 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
773 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
774 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
775 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
776 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
777 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
778 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
779 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
780 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
781 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
782 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
783 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
784 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
785 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
786 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
787 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
788 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
789 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
790 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
791 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
792 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
793 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
794 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
795 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
796 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
797 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
798 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
799 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
800 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
801 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
802 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
803 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
804 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
805 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
806 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
807 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
808 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
809 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
810 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
811 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
812 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
813 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
814 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
815 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
816 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
817 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
818 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
819 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
820 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
821 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
822 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
823 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
824 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
825 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
826 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
827 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
828 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS
830 /* Hooks that are no longer used. */
831 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
832 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
833 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
834 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
835 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
836 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
837 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
838 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
839 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
840 TARGET_IRA_COVER_CLASSES
842 /* Hooks into libgcc2. */
843 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
844 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
846 /* Miscellaneous macros that are no longer used. */
847 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
849 /* Libiberty macros that are no longer used in GCC. */
850 #undef ANSI_PROTOTYPES
858 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
859 VA_FIXEDARG VA_CLOSE VA_START
862 /* Front ends should never have to include middle-end headers. Enforce
863 this by poisoning the header double-include protection defines. */
864 #ifdef IN_GCC_FRONTEND
865 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
868 /* Note: not all uses of the `index' token (e.g. variable names and
869 structure members) have been eliminated. */
874 #pragma GCC poison bcopy bzero bcmp rindex
876 #endif /* GCC >= 3.0 */
878 /* This macro allows casting away const-ness to pass -Wcast-qual
879 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
880 only be used in certain specific cases. One valid case is where
881 the C standard definitions or prototypes force you to. E.g. if you
882 need to free a const object, or if you pass a const string to
883 execv, et al. Another valid use would be in an allocation function
884 that creates const objects that need to be initialized. In some
885 cases we have non-const functions that return the argument
886 (e.g. next_nonnote_insn). Rather than create const shadow
887 functions, we can cast away const-ness in calling these interfaces
888 if we're careful to verify that the called function does indeed not
889 modify its argument and the return value is only used in a const
890 context. (This can be somewhat dangerous as these assumptions can
891 change after the fact). Beyond these uses, most other cases of
892 using this macro should be viewed with extreme caution. */
895 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
897 #if defined(__GNUC__) && GCC_VERSION > 4000
898 /* GCC 4.0.x has a bug where it may ICE on this expression,
899 so does GCC 3.4.x (PR17436). */
900 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
901 #elif defined(__GNUC__)
903 helper_const_non_const_cast (const char *p
)
913 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
914 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
916 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
919 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X))
920 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X))
921 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X))
922 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X))
923 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X))
925 /* Activate certain diagnostics as warnings (not errors via the
927 #if GCC_VERSION >= 4003
928 /* If asserts are disabled, activate -Wuninitialized as a warning (not
929 an error/-Werror). */
930 #ifndef ENABLE_ASSERT_CHECKING
931 #pragma GCC diagnostic warning "-Wuninitialized"
935 #ifdef ENABLE_VALGRIND_CHECKING
936 # ifdef HAVE_VALGRIND_MEMCHECK_H
937 # include <valgrind/memcheck.h>
938 # elif defined HAVE_MEMCHECK_H
939 # include <memcheck.h>
941 # include <valgrind.h>
943 /* Compatibility macros to let valgrind 3.1 work. */
944 # ifndef VALGRIND_MAKE_MEM_NOACCESS
945 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
947 # ifndef VALGRIND_MAKE_MEM_DEFINED
948 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
950 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
951 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
954 /* Avoid #ifdef:s when we can help it. */
955 #define VALGRIND_DISCARD(x)
956 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
957 #define VALGRIND_FREELIKE_BLOCK(x,y)
960 /* In LTO -fwhole-program build we still want to keep the debug functions available
961 for debugger. Mark them as used to prevent removal. */
962 #if (GCC_VERSION > 4000)
963 #define DEBUG_FUNCTION __attribute__ ((__used__))
964 #define DEBUG_VARIABLE __attribute__ ((__used__))
966 #define DEBUG_FUNCTION
967 #define DEBUG_VARIABLE
970 #endif /* ! GCC_SYSTEM_H */