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
193 /* Some of glibc's string inlines cause warnings. Plus we'd rather
194 rely on (and therefore test) GCC's string builtins. */
195 #define __NO_STRING_INLINES
197 #ifdef STRING_WITH_STRINGS
199 # include <strings.h>
201 # ifdef HAVE_STRING_H
204 # ifdef HAVE_STRINGS_H
205 # include <strings.h>
214 /* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
215 FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
216 or 0 and 1 if those macros are not defined. */
217 #ifndef SUCCESS_EXIT_CODE
219 # define SUCCESS_EXIT_CODE EXIT_SUCCESS
221 # define SUCCESS_EXIT_CODE 0
225 #ifndef FATAL_EXIT_CODE
227 # define FATAL_EXIT_CODE EXIT_FAILURE
229 # define FATAL_EXIT_CODE 1
233 #define ICE_EXIT_CODE 4
239 #ifdef HAVE_SYS_PARAM_H
240 # include <sys/param.h>
241 /* We use this identifier later and it appears in some vendor param.h's. */
249 /* Get definitions of HOST_WIDE_INT and HOST_WIDEST_INT. */
252 /* A macro to determine whether a VALUE lies inclusively within a
253 certain range without evaluating the VALUE more than once. This
254 macro won't warn if the VALUE is unsigned and the LOWER bound is
255 zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
256 bound *is* evaluated twice, and LOWER must not be greater than
257 UPPER. However the bounds themselves can be either positive or
259 #define IN_RANGE(VALUE, LOWER, UPPER) \
260 ((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
261 <= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
263 /* Infrastructure for defining missing _MAX and _MIN macros. Note that
264 macros defined with these cannot be used in #if. */
266 /* The extra casts work around common compiler bugs. */
267 #define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
268 /* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
269 It is necessary at least when t == time_t. */
270 #define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
271 ? ~ (t) 0 << (sizeof(t) * CHAR_BIT - 1) : (t) 0))
272 #define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
274 /* Use that infrastructure to provide a few constants. */
276 # define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
279 #ifdef TIME_WITH_SYS_TIME
280 # include <sys/time.h>
284 # include <sys/time.h>
295 # ifdef HAVE_SYS_FILE_H
296 # include <sys/file.h>
318 /* Some systems define these in, e.g., param.h. We undefine these names
319 here to avoid the warnings. We prefer to use our definitions since we
320 know they are correct. */
324 #define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
325 #define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
327 /* Returns the least number N such that N * Y >= X. */
328 #define CEIL(x,y) (((x) + (y) - 1) / (y))
330 #ifdef HAVE_SYS_WAIT_H
331 #include <sys/wait.h>
335 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
338 #define WTERMSIG(S) ((S) & 0x7f)
341 #define WIFEXITED(S) (((S) & 0xff) == 0)
344 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
347 #define WSTOPSIG WEXITSTATUS
350 #define WCOREDUMP(S) ((S) & WCOREFLG)
353 #define WCOREFLG 0200
356 /* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
357 are defined to 0 then we must provide the relevant declaration
358 here. These checks will be in the undefined state while configure
359 is running so be careful to test "defined (HAVE_DECL_*)". */
361 #if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
362 extern double atof (const char *);
365 #if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
366 extern long atol (const char *);
369 #if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
370 extern void free (void *);
373 #if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
374 extern char *getcwd (char *, size_t);
377 #if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
378 extern char *getenv (const char *);
381 #if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
382 extern int getopt (int, char * const *, const char *);
385 #if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
386 extern int getpagesize (void);
389 #if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
390 extern char *getwd (char *);
393 #if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
394 extern void *sbrk (int);
397 #if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
398 extern char *strstr (const char *, const char *);
405 #if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
406 extern void *malloc (size_t);
409 #if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
410 extern void *calloc (size_t, size_t);
413 #if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
414 extern void *realloc (void *, size_t);
421 #ifdef HAVE_INTTYPES_H
422 #include <inttypes.h>
425 /* If the system doesn't provide strsignal, we get it defined in
426 libiberty but no declaration is supplied. */
427 #if !defined (HAVE_STRSIGNAL) \
428 || (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
430 extern const char *strsignal (int);
434 #ifdef HAVE_GETRLIMIT
435 # if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
438 extern int getrlimit (int, struct rlimit
*);
443 #ifdef HAVE_SETRLIMIT
444 # if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
447 extern int setrlimit (int, const struct rlimit
*);
452 #if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
453 extern void abort (void);
456 #if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
457 extern int snprintf (char *, size_t, const char *, ...);
460 #if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
461 extern int vsnprintf(char *, size_t, const char *, va_list);
464 /* 1 if we have C99 designated initializers. */
465 #if !defined(HAVE_DESIGNATED_INITIALIZERS)
466 #define HAVE_DESIGNATED_INITIALIZERS \
467 (((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L)) \
468 && !defined(__cplusplus))
472 # include <sys/stat.h>
475 /* Test if something is a normal file. */
477 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
480 /* Test if something is a directory. */
482 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
485 /* Test if something is a character special file. */
487 #define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
490 /* Test if something is a block special file. */
492 #define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
495 /* Test if something is a socket. */
498 # define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
500 # define S_ISSOCK(m) 0
504 /* Test if something is a FIFO. */
507 # define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
509 # define S_ISFIFO(m) 0
513 /* Define well known filenos if the system does not define them. */
515 # define STDIN_FILENO 0
517 #ifndef STDOUT_FILENO
518 # define STDOUT_FILENO 1
520 #ifndef STDERR_FILENO
521 # define STDERR_FILENO 2
524 /* Some systems have mkdir that takes a single argument. */
525 #ifdef MKDIR_TAKES_ONE_ARG
526 # define mkdir(a,b) mkdir(a)
529 /* Provide a way to print an address via printf. */
530 #ifndef HOST_PTR_PRINTF
531 #define HOST_PTR_PRINTF "%p"
532 #endif /* ! HOST_PTR_PRINTF */
534 /* By default, colon separates directories in a path. */
535 #ifndef PATH_SEPARATOR
536 #define PATH_SEPARATOR ':'
539 /* Filename handling macros. */
540 #include "filenames.h"
542 /* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
543 #ifndef DIR_SEPARATOR
544 # define DIR_SEPARATOR '/'
545 # ifdef HAVE_DOS_BASED_FILE_SYSTEM
546 # define DIR_SEPARATOR_2 '\\'
550 /* Get libiberty declarations. */
551 #include "libiberty.h"
553 /* Provide a default for the HOST_BIT_BUCKET.
554 This suffices for POSIX-like hosts. */
556 #ifndef HOST_BIT_BUCKET
557 #define HOST_BIT_BUCKET "/dev/null"
560 /* Be conservative and only use enum bitfields with GCC.
561 FIXME: provide a complete autoconf test for buggy enum bitfields. */
563 #if (GCC_VERSION > 2000)
564 #define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
566 #define ENUM_BITFIELD(TYPE) unsigned int
570 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
573 /* Various error reporting routines want to use __FUNCTION__. */
574 #if (GCC_VERSION < 2007)
576 #define __FUNCTION__ "?"
577 #endif /* ! __FUNCTION__ */
580 /* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
581 the most likely value of A is B. This feature was added at some point
582 between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
583 #if (GCC_VERSION < 3000)
584 #define __builtin_expect(a, b) (a)
587 /* Redefine abort to report an internal error w/o coredump, and
588 reporting the location of the error in the source file. */
589 extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN
;
590 #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
592 /* Use gcc_assert(EXPR) to test invariants. */
593 #if ENABLE_ASSERT_CHECKING
594 #define gcc_assert(EXPR) \
595 ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
596 #elif (GCC_VERSION >= 4005)
597 #define gcc_assert(EXPR) \
598 ((void)(__builtin_expect(!(EXPR), 0) ? __builtin_unreachable(), 0 : 0))
600 /* Include EXPR, so that unused variable warnings do not occur. */
601 #define gcc_assert(EXPR) ((void)(0 && (EXPR)))
604 #ifdef ENABLE_CHECKING
605 #define gcc_checking_assert(EXPR) gcc_assert (EXPR)
607 #define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
610 /* Use gcc_unreachable() to mark unreachable locations (like an
611 unreachable default case of a switch. Do not use gcc_assert(0). */
612 #if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
613 #define gcc_unreachable() __builtin_unreachable()
615 #define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
618 /* Provide a fake boolean type. We make no attempt to use the
619 C99 _Bool, as it may not be available in the bootstrap compiler,
620 and even if it is, it is liable to be buggy.
621 This must be after all inclusion of system headers, as some of
622 them will mess us up. */
631 #else /* !__cplusplus */
636 # define bool unsigned char
643 #endif /* !__cplusplus */
645 /* Some compilers do not allow the use of unsigned char in bitfields. */
646 #define BOOL_BITFIELD unsigned int
648 /* As the last action in this file, we poison the identifiers that
649 shouldn't be used. Note, luckily gcc-3.0's token-based integrated
650 preprocessor won't trip on poisoned identifiers that arrive from
651 the expansion of macros. E.g. #define strrchr rindex, won't error
652 if rindex is poisoned after this directive is issued and later on
655 Note: We define bypass macros for the few cases where we really
656 want to use the libc memory allocation routines. Otherwise we
657 insist you use the "x" versions from libiberty. */
659 #define really_call_malloc malloc
660 #define really_call_calloc calloc
661 #define really_call_realloc realloc
663 #if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
664 /* Flex and bison use malloc and realloc. Yuk. Note that this means
665 really_call_* cannot be used in a .l or .y file. */
666 #define malloc xmalloc
667 #define realloc xrealloc
670 #if (GCC_VERSION >= 3000)
672 /* Note autoconf checks for prototype declarations and includes
673 system.h while doing so. Only poison these tokens if actually
674 compiling gcc, so that the autoconf declaration tests for malloc
675 etc don't spuriously fail. */
679 #pragma GCC poison calloc strdup
681 #if !defined(FLEX_SCANNER) && !defined(YYBISON)
684 #pragma GCC poison malloc realloc
687 /* Old target macros that have moved to the target hooks structure. */
688 #pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
689 FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
690 FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
691 DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
692 VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
693 SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
694 MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
695 MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
696 ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
697 WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
698 ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
699 ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
700 ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
701 ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
702 INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
703 DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
704 MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
705 PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
706 ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
707 STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
708 PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
709 SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
710 DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
711 HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
712 MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
713 VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
714 FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
715 ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
716 CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
717 TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING
719 /* Other obsolete target macros, or macros that used to be in target
720 headers and were not used, and may be obsolete or may never have
722 #pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
723 ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
724 DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
725 OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
726 LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
727 STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
728 SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
729 TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
730 NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
731 BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
732 FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
733 MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
734 ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
735 OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
736 ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
737 DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
738 DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
739 INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
740 EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
741 LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
742 LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
743 CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
744 FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
745 PROMOTED_MODE EXPAND_BUILTIN_VA_END \
746 LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
747 GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
748 MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
749 FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
750 TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
751 DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
752 SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
753 SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
754 DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
755 COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
756 ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
757 GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
758 PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
759 DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
760 NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
761 CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
762 TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
763 LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
764 TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
765 PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
766 EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
767 TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
768 SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
769 ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
770 STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
771 ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
772 ASM_DECLARE_CONSTANT_NAME
774 /* Hooks that are no longer used. */
775 #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
776 LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
777 LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
778 LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
779 LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
780 LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
781 TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN
783 /* Miscellaneous macros that are no longer used. */
784 #pragma GCC poison USE_MAPPED_LOCATION
786 /* Libiberty macros that are no longer used in GCC. */
787 #undef ANSI_PROTOTYPES
795 #pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
796 VA_FIXEDARG VA_CLOSE VA_START
799 /* Front ends should never have to include middle-end headers. Enforce
800 this by poisoning the header double-include protection defines. */
801 #ifdef IN_GCC_FRONTEND
802 #pragma GCC poison GCC_RTL_H
805 /* Note: not all uses of the `index' token (e.g. variable names and
806 structure members) have been eliminated. */
811 #pragma GCC poison bcopy bzero bcmp rindex
813 #endif /* GCC >= 3.0 */
815 /* This macro allows casting away const-ness to pass -Wcast-qual
816 warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
817 only be used in certain specific cases. One valid case is where
818 the C standard definitions or prototypes force you to. E.g. if you
819 need to free a const object, or if you pass a const string to
820 execv, et al. Another valid use would be in an allocation function
821 that creates const objects that need to be initialized. In some
822 cases we have non-const functions that return the argument
823 (e.g. next_nonnote_insn). Rather than create const shadow
824 functions, we can cast away const-ness in calling these interfaces
825 if we're careful to verify that the called function does indeed not
826 modify its argument and the return value is only used in a const
827 context. (This can be somewhat dangerous as these assumptions can
828 change after the fact). Beyond these uses, most other cases of
829 using this macro should be viewed with extreme caution. */
832 #define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
834 #if defined(__GNUC__) && GCC_VERSION > 4000
835 /* GCC 4.0.x has a bug where it may ICE on this expression,
836 so does GCC 3.4.x (PR17436). */
837 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
838 #elif defined(__GNUC__)
840 helper_const_non_const_cast (const char *p
)
850 #define CONST_CAST2(TOTYPE,FROMTYPE,X) \
851 ((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
853 #define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
856 #define CONST_CAST(TYPE,X) CONST_CAST2(TYPE, const TYPE, (X))
857 #define CONST_CAST_TREE(X) CONST_CAST(union tree_node *, (X))
858 #define CONST_CAST_RTX(X) CONST_CAST(struct rtx_def *, (X))
859 #define CONST_CAST_BB(X) CONST_CAST(struct basic_block_def *, (X))
860 #define CONST_CAST_GIMPLE(X) CONST_CAST(union gimple_statement_d *, (X))
862 /* Activate certain diagnostics as warnings (not errors via the
864 #if GCC_VERSION >= 4003
865 /* If asserts are disabled, activate -Wuninitialized as a warning (not
866 an error/-Werror). */
867 #ifndef ENABLE_ASSERT_CHECKING
868 #pragma GCC diagnostic warning "-Wuninitialized"
872 #ifdef ENABLE_VALGRIND_CHECKING
873 # ifdef HAVE_VALGRIND_MEMCHECK_H
874 # include <valgrind/memcheck.h>
875 # elif defined HAVE_MEMCHECK_H
876 # include <memcheck.h>
878 # include <valgrind.h>
880 /* Compatibility macros to let valgrind 3.1 work. */
881 # ifndef VALGRIND_MAKE_MEM_NOACCESS
882 # define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
884 # ifndef VALGRIND_MAKE_MEM_DEFINED
885 # define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
887 # ifndef VALGRIND_MAKE_MEM_UNDEFINED
888 # define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
891 /* Avoid #ifdef:s when we can help it. */
892 #define VALGRIND_DISCARD(x)
893 #define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
894 #define VALGRIND_FREELIKE_BLOCK(x,y)
897 /* In LTO -fwhole-program build we still want to keep the debug functions available
898 for debugger. Mark them as used to prevent removal. */
899 #if (GCC_VERSION > 4000)
900 #define DEBUG_FUNCTION __attribute__ ((__used__))
901 #define DEBUG_VARIABLE __attribute__ ((__used__))
903 #define DEBUG_FUNCTION
904 #define DEBUG_VARIABLE
907 #endif /* ! GCC_SYSTEM_H */