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)
97 # ifdef HAVE_CLEARERR_UNLOCKED
99 # define clearerr(Stream) clearerr_unlocked (Stream)
100 # if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
101 extern void clearerr_unlocked (FILE *);
104 # ifdef HAVE_FEOF_UNLOCKED
106 # define feof(Stream) feof_unlocked (Stream)
107 # if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
108 extern int feof_unlocked (FILE *);
111 # ifdef HAVE_FILENO_UNLOCKED
113 # define fileno(Stream) fileno_unlocked (Stream)
114 # if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
115 extern int fileno_unlocked (FILE *);
118 # ifdef HAVE_FFLUSH_UNLOCKED
120 # define fflush(Stream) fflush_unlocked (Stream)
121 # if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
122 extern int fflush_unlocked (FILE *);
125 # ifdef HAVE_FGETC_UNLOCKED
127 # define fgetc(Stream) fgetc_unlocked (Stream)
128 # if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
129 extern int fgetc_unlocked (FILE *);
132 # ifdef HAVE_FGETS_UNLOCKED
134 # define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
135 # if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
136 extern char *fgets_unlocked (char *, int, FILE *);
139 # ifdef HAVE_FPUTS_UNLOCKED
141 # define fputs(String, Stream) fputs_unlocked (String, Stream)
142 # if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
143 extern int fputs_unlocked (const char *, FILE *);
146 # ifdef HAVE_FERROR_UNLOCKED
148 # define ferror(Stream) ferror_unlocked (Stream)
149 # if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
150 extern int ferror_unlocked (FILE *);
153 # ifdef HAVE_FREAD_UNLOCKED
155 # define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
156 # if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
157 extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
160 # ifdef HAVE_FWRITE_UNLOCKED
162 # define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
163 # if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
164 extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
167 # ifdef HAVE_FPRINTF_UNLOCKED
169 /* We can't use a function-like macro here because we don't know if
170 we have varargs macros. */
171 # define fprintf fprintf_unlocked
172 # if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
173 extern int fprintf_unlocked (FILE *, const char *, ...);
183 /* ??? Glibc's fwrite/fread_unlocked macros cause
184 "warning: signed and unsigned type in conditional expression". */
185 #undef fread_unlocked
186 #undef fwrite_unlocked
188 /* There are an extraordinary number of issues with <ctype.h>.
189 The last straw is that it varies with the locale. Use libiberty's
190 replacement instead. */
191 #include "safe-ctype.h"
193 #include <sys/types.h>
197 #if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
205 /* Some of glibc's string inlines cause warnings. Plus we'd rather
206 rely on (and therefore test) GCC's string builtins. */
207 #define __NO_STRING_INLINES
209 #ifdef STRING_WITH_STRINGS
211 # include <strings.h>
213 # ifdef HAVE_STRING_H
216 # ifdef HAVE_STRINGS_H
217 # include <strings.h>
226 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
227 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
228 or 0 and 1 if those macros are not defined. */
229 #ifndef SUCCESS_EXIT_CODE
231 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
233 # define SUCCESS_EXIT_CODE 0
237 #ifndef FATAL_EXIT_CODE
239 # define FATAL_EXIT_CODE EXIT_FAILURE
241 # define FATAL_EXIT_CODE 1
245 #define ICE_EXIT_CODE 4
251 #ifdef HAVE_SYS_PARAM_H
252 # include <sys/param.h>
253 /* We use this identifier later and it appears in some vendor param.h's. */
261 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
264 /* A macro to determine whether a VALUE lies inclusively within a
265 certain range without evaluating the VALUE more than once. This
266 macro won't warn if the VALUE is unsigned and the LOWER bound is
267 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
268 bound *is* evaluated twice, and LOWER must not be greater than
269 UPPER. However the bounds themselves can be either positive or
271 #define IN_RANGE(VALUE, LOWER, UPPER) \
272 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
273 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
275 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
276 macros defined with these cannot be used in #if. */
278 /* The extra casts work around common compiler bugs. */
279 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
280 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
281 It is necessary at least when t == time_t. */
282 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
283 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
284 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
286 /* Use that infrastructure to provide a few constants. */
288 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
291 #ifdef TIME_WITH_SYS_TIME
292 # include <sys/time.h>
296 # include <sys/time.h>
307 # ifdef HAVE_SYS_FILE_H
308 # include <sys/file.h>
333 /* Some systems define these in, e.g., param.h. We undefine these names
334 here to avoid the warnings. We prefer to use our definitions since we
335 know they are correct. */
339 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
340 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
342 /* Returns the least number N such that N * Y >= X. */
343 #define CEIL(x,y) (((x) + (y) - 1) / (y))
345 #ifdef HAVE_SYS_WAIT_H
346 #include <sys/wait.h>
350 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
353 #define WTERMSIG(S) ((S) & 0x7f)
356 #define WIFEXITED(S) (((S) & 0xff) == 0)
359 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
362 #define WSTOPSIG WEXITSTATUS
365 #define WCOREDUMP(S) ((S) & WCOREFLG)
368 #define WCOREFLG 0200
372 #if !defined (SIGCHLD) && defined (SIGCLD)
373 # define SIGCHLD SIGCLD
376 #ifdef HAVE_SYS_MMAN_H
377 # include <sys/mman.h>
381 # define MAP_FAILED ((void *)-1)
384 #if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
385 # define MAP_ANONYMOUS MAP_ANON
388 #ifdef HAVE_SYS_RESOURCE_H
389 # include <sys/resource.h>
392 #ifdef HAVE_SYS_TIMES_H
393 # include <sys/times.h>
396 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
397 are defined to 0 then we must provide the relevant declaration
398 here. These checks will be in the undefined state while configure
399 is running so be careful to test "defined (HAVE_DECL_*)". */
405 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
406 extern double atof (const char *);
409 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
410 extern long atol (const char *);
413 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
414 extern void free (void *);
417 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
418 extern char *getcwd (char *, size_t);
421 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
422 extern char *getenv (const char *);
425 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
426 extern int getopt (int, char * const *, const char *);
429 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
430 extern int getpagesize (void);
433 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
434 extern char *getwd (char *);
437 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
438 extern void *sbrk (int);
441 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
442 extern char *strstr (const char *, const char *);
445 #if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
446 extern char *stpcpy (char *, const char *);
461 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
462 extern void *malloc (size_t);
465 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
466 extern void *calloc (size_t, size_t);
469 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
470 extern void *realloc (void *, size_t);
481 #ifdef HAVE_INTTYPES_H
482 #include <inttypes.h>
489 /* If the system doesn't provide strsignal, we get it defined in
490 libiberty but no declaration is supplied. */
491 #if !defined (HAVE_STRSIGNAL) \
492 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
494 extern const char *strsignal (int);
498 #ifdef HAVE_GETRLIMIT
499 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
502 extern int getrlimit (int, struct rlimit *);
507 #ifdef HAVE_SETRLIMIT
508 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
511 extern int setrlimit (int, const struct rlimit *);
516 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
517 extern void abort (void);
520 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
521 extern int snprintf (char *, size_t, const char *, ...);
524 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
525 extern int vsnprintf(char *, size_t, const char *, va_list);
532 /* 1 if we have C99 designated initializers. */
533 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
534 #define HAVE_DESIGNATED_INITIALIZERS \
535 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
536 && !defined(__cplusplus))
539 #if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
540 #define HAVE_DESIGNATED_UNION_INITIALIZERS \
541 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
542 && (!defined(__cplusplus) || (GCC_VERSION >= 4007)))
546 # include <sys/stat.h>
549 /* Test if something is a normal file. */
551 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
554 /* Test if something is a directory. */
556 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
559 /* Test if something is a character special file. */
561 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
564 /* Test if something is a block special file. */
566 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
569 /* Test if something is a socket. */
572 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
574 # define S_ISSOCK(m) 0
578 /* Test if something is a FIFO. */
581 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
583 # define S_ISFIFO(m) 0
587 /* Define well known filenos if the system does not define them. */
589 # define STDIN_FILENO 0
591 #ifndef STDOUT_FILENO
592 # define STDOUT_FILENO 1
594 #ifndef STDERR_FILENO
595 # define STDERR_FILENO 2
598 /* Some systems have mkdir that takes a single argument. */
599 #ifdef MKDIR_TAKES_ONE_ARG
600 # define mkdir(a,b) mkdir(a)
604 # define kill(p,s) raise(s)
607 /* Provide a way to print an address via printf. */
608 #ifndef HOST_PTR_PRINTF
609 #define HOST_PTR_PRINTF "%p"
610 #endif /* ! HOST_PTR_PRINTF */
612 /* By default, colon separates directories in a path. */
613 #ifndef PATH_SEPARATOR
614 #define PATH_SEPARATOR ':'
617 /* Filename handling macros. */
618 #include "filenames.h"
620 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
621 #ifndef DIR_SEPARATOR
622 # define DIR_SEPARATOR '/'
623 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
624 # define DIR_SEPARATOR_2 '\\'
628 #if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
629 /* If plugin support is enabled, we could use libdl. */
633 /* Get libiberty declarations. */
634 #include "libiberty.h"
636 /* Provide a default for the HOST_BIT_BUCKET.
637 This suffices for POSIX-like hosts. */
639 #ifndef HOST_BIT_BUCKET
640 #define HOST_BIT_BUCKET "/dev/null"
644 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
647 /* Various error reporting routines want to use __FUNCTION__. */
648 #if (GCC_VERSION < 2007)
650 #define __FUNCTION__ "?"
651 #endif /* ! __FUNCTION__ */
654 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
655 the most likely value of A is B. This feature was added at some point
656 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
657 #if (GCC_VERSION < 3000)
658 #define __builtin_expect(a, b) (a)
661 /* Redefine abort to report an internal error w/o coredump, and
662 reporting the location of the error in the source file. */
663 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
664 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
666 /* Use gcc_assert(EXPR) to test invariants. */
667 #if ENABLE_ASSERT_CHECKING
668 #define gcc_assert(EXPR) \
669 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
670 #elif (GCC_VERSION >= 4005)
671 #define gcc_assert(EXPR) \
672 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0))
674 /* Include EXPR, so that unused variable warnings do not occur. */
675 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
678 #ifdef ENABLE_CHECKING
679 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
681 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
684 /* Use gcc_unreachable() to mark unreachable locations (like an
685 unreachable default case of a switch. Do not use gcc_assert(0). */
686 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
687 #define gcc_unreachable() __builtin_unreachable()
689 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
692 /* Provide a fake boolean type. We make no attempt to use the
693 C99 _Bool, as it may not be available in the bootstrap compiler,
694 and even if it is, it is liable to be buggy.
695 This must be after all inclusion of system headers, as some of
696 them will mess us up. */
705 #else /* !__cplusplus */
710 # define bool unsigned char
717 #endif /* !__cplusplus */
719 /* Some compilers do not allow the use of unsigned char in bitfields. */
720 #define BOOL_BITFIELD unsigned int
722 /* As the last action in this file, we poison the identifiers that
723 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
724 preprocessor won't trip on poisoned identifiers that arrive from
725 the expansion of macros. E.g. #define strrchr rindex, won't error
726 if rindex is poisoned after this directive is issued and later on
729 Note: We define bypass macros for the few cases where we really
730 want to use the libc memory allocation routines. Otherwise we
731 insist you use the "x" versions from libiberty. */
733 #define really_call_malloc malloc
734 #define really_call_calloc calloc
735 #define really_call_realloc realloc
737 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
738 /* Flex and bison use malloc and realloc. Yuk. Note that this means
739 really_call_* cannot be used in a .l or .y file. */
740 #define malloc xmalloc
741 #define realloc xrealloc
744 #if (GCC_VERSION >= 3000)
746 /* Note autoconf checks for prototype declarations and includes
747 system.h while doing so. Only poison these tokens if actually
748 compiling gcc, so that the autoconf declaration tests for malloc
749 etc don't spuriously fail. */
753 #pragma GCC poison calloc strdup
755 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
758 #pragma GCC poison malloc realloc
761 /* The %m format should be used when GCC's main diagnostic functions
762 supporting %m are available, and xstrerror from libiberty
765 #pragma GCC poison strerror
767 /* Old target macros that have moved to the target hooks structure. */
768 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
769 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
770 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
771 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
772 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
773 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
774 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
775 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
776 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
777 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
778 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
779 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
780 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
781 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
782 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
783 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
784 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
785 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
786 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
787 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
788 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
789 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
790 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
791 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
792 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
793 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
794 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
795 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
796 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
797 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
798 RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
799 OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
800 USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
801 LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \
802 LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \
803 CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
804 HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
805 OUTPUT_ADDR_CONST_EXTRA
807 /* Target macros only used for code built for the target, that have
808 moved to libgcc-tm.h or have never been present elsewhere. */
809 #pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
810 MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
811 REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
813 /* Other obsolete target macros, or macros that used to be in target
814 headers and were not used, and may be obsolete or may never have
816 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
817 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
818 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
819 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
820 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
821 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
822 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
823 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
824 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
825 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
826 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
827 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
828 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
829 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
830 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
831 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
832 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
833 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
834 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
835 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
836 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
837 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
838 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
839 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
840 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
841 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
842 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
843 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
844 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
845 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
846 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
847 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
848 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
849 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
850 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
851 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
852 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
853 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
854 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
855 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
856 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
857 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
858 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
859 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
860 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
861 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
862 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
863 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
864 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
865 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
866 ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
867 SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
868 TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
869 HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
870 FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
871 USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
872 FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
873 MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
874 SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
875 PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
876 STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT
878 /* Hooks that are no longer used. */
879 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
880 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
881 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
882 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
883 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
884 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
885 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
886 LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
887 TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
888 TARGET_IRA_COVER_CLASSES TARGET_HELP
890 /* Arrays that were deleted in favor of a functional interface. */
891 #pragma GCC poison built_in_decls implicit_built_in_decls
893 /* Hooks into libgcc2. */
894 #pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
895 LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
897 /* Miscellaneous macros that are no longer used. */
898 #pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
900 /* Libiberty macros that are no longer used in GCC. */
901 #undef ANSI_PROTOTYPES
909 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
910 VA_FIXEDARG VA_CLOSE VA_START
913 /* Front ends should never have to include middle-end headers. Enforce
914 this by poisoning the header double-include protection defines. */
915 #ifdef IN_GCC_FRONTEND
916 #pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
919 /* Note: not all uses of the `index' token (e.g. variable names and
920 structure members) have been eliminated. */
925 #pragma GCC poison bcopy bzero bcmp rindex
927 #endif /* GCC >= 3.0 */
929 /* This macro allows casting away const-ness to pass -Wcast-qual
930 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
931 only be used in certain specific cases. One valid case is where
932 the C standard definitions or prototypes force you to. E.g. if you
933 need to free a const object, or if you pass a const string to
934 execv, et al. Another valid use would be in an allocation function
935 that creates const objects that need to be initialized. In some
936 cases we have non-const functions that return the argument
937 (e.g. next_nonnote_insn). Rather than create const shadow
938 functions, we can cast away const-ness in calling these interfaces
939 if we're careful to verify that the called function does indeed not
940 modify its argument and the return value is only used in a const
941 context. (This can be somewhat dangerous as these assumptions can
942 change after the fact). Beyond these uses, most other cases of
943 using this macro should be viewed with extreme caution. */
946 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
948 #if defined(__GNUC__) && GCC_VERSION > 4000
949 /* GCC 4.0.x has a bug where it may ICE on this expression,
950 so does GCC 3.4.x (PR17436). */
951 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
952 #elif defined(__GNUC__)
954 helper_const_non_const_cast (const char *p)
964 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
965 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
967 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
970 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X))
971 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X))
972 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X))
973 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X))
974 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X))
976 /* Activate certain diagnostics as warnings (not errors via the
978 #if GCC_VERSION >= 4003
979 /* If asserts are disabled, activate -Wuninitialized as a warning (not
980 an error/-Werror). */
981 #ifndef ENABLE_ASSERT_CHECKING
982 #pragma GCC diagnostic warning "-Wuninitialized"
986 #ifdef ENABLE_VALGRIND_CHECKING
987 # ifdef HAVE_VALGRIND_MEMCHECK_H
988 # include <valgrind/memcheck.h>
989 # elif defined HAVE_MEMCHECK_H
990 # include <memcheck.h>
992 # include <valgrind.h>
994 /* Compatibility macros to let valgrind 3.1 work. */
995 # ifndef VALGRIND_MAKE_MEM_NOACCESS
996 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
998 # ifndef VALGRIND_MAKE_MEM_DEFINED
999 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
1001 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
1002 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
1005 /* Avoid #ifdef:s when we can help it. */
1006 #define VALGRIND_DISCARD(x)
1007 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
1008 #define VALGRIND_FREELIKE_BLOCK(x,y)
1011 /* In LTO -fwhole-program build we still want to keep the debug functions available
1012 for debugger. Mark them as used to prevent removal. */
1013 #if (GCC_VERSION > 4000)
1014 #define DEBUG_FUNCTION __attribute__ ((__used__))
1015 #define DEBUG_VARIABLE __attribute__ ((__used__))
1017 #define DEBUG_FUNCTION
1018 #define DEBUG_VARIABLE
1021 #endif /* ! GCC_SYSTEM_H */