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/* Get common system includes and various definitions and declarations based
on autoconf macros.
Copyright (C) 1998-2017 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#ifndef GCC_SYSTEM_H
#define GCC_SYSTEM_H
/* Define this so that inttypes.h defines the PRI?64 macros even
when compiling with a C++ compiler. Define it here so in the
event inttypes.h gets pulled in by another header it is already
defined. */
#define __STDC_FORMAT_MACROS
/* We must include stdarg.h before stdio.h. */
#include <stdarg.h>
#ifndef va_copy
# ifdef __va_copy
# define va_copy(d,s) __va_copy (d, s)
# else
# define va_copy(d,s) ((d) = (s))
# endif
#endif
#ifdef HAVE_STDDEF_H
# include <stddef.h>
#endif
#include <stdio.h>
/* Define a generic NULL if one hasn't already been defined. */
#ifndef NULL
#define NULL 0
#endif
/* Use the unlocked open routines from libiberty. */
/* Some of these are #define on some systems, e.g. on AIX to redirect
the names to 64bit capable functions for LARGE_FILES support. These
redefs are pointless here so we can override them. */
#undef fopen
#undef freopen
#define fopen(PATH, MODE) fopen_unlocked (PATH, MODE)
#define fdopen(FILDES, MODE) fdopen_unlocked (FILDES, MODE)
#define freopen(PATH, MODE, STREAM) freopen_unlocked (PATH, MODE, STREAM)
/* The compiler is not a multi-threaded application and therefore we
do not have to use the locking functions. In fact, using the locking
functions can cause the compiler to be significantly slower under
I/O bound conditions (such as -g -O0 on very large source files).
HAVE_DECL_PUTC_UNLOCKED actually indicates whether or not the stdio
code is multi-thread safe by default. If it is set to 0, then do
not worry about using the _unlocked functions.
fputs_unlocked, fwrite_unlocked, and fprintf_unlocked are
extensions and need to be prototyped by hand (since we do not
define _GNU_SOURCE). */
#if defined HAVE_DECL_PUTC_UNLOCKED && HAVE_DECL_PUTC_UNLOCKED
# ifdef HAVE_PUTC_UNLOCKED
# undef putc
# define putc(C, Stream) putc_unlocked (C, Stream)
# endif
# ifdef HAVE_PUTCHAR_UNLOCKED
# undef putchar
# define putchar(C) putchar_unlocked (C)
# endif
# ifdef HAVE_GETC_UNLOCKED
# undef getc
# define getc(Stream) getc_unlocked (Stream)
# endif
# ifdef HAVE_GETCHAR_UNLOCKED
# undef getchar
# define getchar() getchar_unlocked ()
# endif
# ifdef HAVE_FPUTC_UNLOCKED
# undef fputc
# define fputc(C, Stream) fputc_unlocked (C, Stream)
# endif
#ifdef __cplusplus
extern "C" {
#endif
# ifdef HAVE_CLEARERR_UNLOCKED
# undef clearerr
# define clearerr(Stream) clearerr_unlocked (Stream)
# if defined (HAVE_DECL_CLEARERR_UNLOCKED) && !HAVE_DECL_CLEARERR_UNLOCKED
extern void clearerr_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FEOF_UNLOCKED
# undef feof
# define feof(Stream) feof_unlocked (Stream)
# if defined (HAVE_DECL_FEOF_UNLOCKED) && !HAVE_DECL_FEOF_UNLOCKED
extern int feof_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FILENO_UNLOCKED
# undef fileno
# define fileno(Stream) fileno_unlocked (Stream)
# if defined (HAVE_DECL_FILENO_UNLOCKED) && !HAVE_DECL_FILENO_UNLOCKED
extern int fileno_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FFLUSH_UNLOCKED
# undef fflush
# define fflush(Stream) fflush_unlocked (Stream)
# if defined (HAVE_DECL_FFLUSH_UNLOCKED) && !HAVE_DECL_FFLUSH_UNLOCKED
extern int fflush_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FGETC_UNLOCKED
# undef fgetc
# define fgetc(Stream) fgetc_unlocked (Stream)
# if defined (HAVE_DECL_FGETC_UNLOCKED) && !HAVE_DECL_FGETC_UNLOCKED
extern int fgetc_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FGETS_UNLOCKED
# undef fgets
# define fgets(S, n, Stream) fgets_unlocked (S, n, Stream)
# if defined (HAVE_DECL_FGETS_UNLOCKED) && !HAVE_DECL_FGETS_UNLOCKED
extern char *fgets_unlocked (char *, int, FILE *);
# endif
# endif
# ifdef HAVE_FPUTS_UNLOCKED
# undef fputs
# define fputs(String, Stream) fputs_unlocked (String, Stream)
# if defined (HAVE_DECL_FPUTS_UNLOCKED) && !HAVE_DECL_FPUTS_UNLOCKED
extern int fputs_unlocked (const char *, FILE *);
# endif
# endif
# ifdef HAVE_FERROR_UNLOCKED
# undef ferror
# define ferror(Stream) ferror_unlocked (Stream)
# if defined (HAVE_DECL_FERROR_UNLOCKED) && !HAVE_DECL_FERROR_UNLOCKED
extern int ferror_unlocked (FILE *);
# endif
# endif
# ifdef HAVE_FREAD_UNLOCKED
# undef fread
# define fread(Ptr, Size, N, Stream) fread_unlocked (Ptr, Size, N, Stream)
# if defined (HAVE_DECL_FREAD_UNLOCKED) && !HAVE_DECL_FREAD_UNLOCKED
extern size_t fread_unlocked (void *, size_t, size_t, FILE *);
# endif
# endif
# ifdef HAVE_FWRITE_UNLOCKED
# undef fwrite
# define fwrite(Ptr, Size, N, Stream) fwrite_unlocked (Ptr, Size, N, Stream)
# if defined (HAVE_DECL_FWRITE_UNLOCKED) && !HAVE_DECL_FWRITE_UNLOCKED
extern size_t fwrite_unlocked (const void *, size_t, size_t, FILE *);
# endif
# endif
# ifdef HAVE_FPRINTF_UNLOCKED
# undef fprintf
/* We can't use a function-like macro here because we don't know if
we have varargs macros. */
# define fprintf fprintf_unlocked
# if defined (HAVE_DECL_FPRINTF_UNLOCKED) && !HAVE_DECL_FPRINTF_UNLOCKED
extern int fprintf_unlocked (FILE *, const char *, ...);
# endif
# endif
#ifdef __cplusplus
}
#endif
#endif
/* ??? Glibc's fwrite/fread_unlocked macros cause
"warning: signed and unsigned type in conditional expression". */
#undef fread_unlocked
#undef fwrite_unlocked
/* Include <string> before "safe-ctype.h" to avoid GCC poisoning
the ctype macros through safe-ctype.h */
#ifdef __cplusplus
#ifdef INCLUDE_STRING
# include <string>
#endif
#endif
/* There are an extraordinary number of issues with <ctype.h>.
The last straw is that it varies with the locale. Use libiberty's
replacement instead. */
#include "safe-ctype.h"
#include <sys/types.h>
#include <errno.h>
#if !defined (errno) && defined (HAVE_DECL_ERRNO) && !HAVE_DECL_ERRNO
extern int errno;
#endif
#ifdef __cplusplus
#if defined (INCLUDE_ALGORITHM) || !defined (HAVE_SWAP_IN_UTILITY)
# include <algorithm>
#endif
#ifdef INCLUDE_LIST
# include <list>
#endif
#ifdef INCLUDE_MAP
# include <map>
#endif
#ifdef INCLUDE_SET
# include <set>
#endif
#ifdef INCLUDE_VECTOR
# include <vector>
#endif
# include <cstring>
# include <new>
# include <utility>
#endif
/* Some of glibc's string inlines cause warnings. Plus we'd rather
rely on (and therefore test) GCC's string builtins. */
#define __NO_STRING_INLINES
#ifdef STRING_WITH_STRINGS
# include <string.h>
# include <strings.h>
#else
# ifdef HAVE_STRING_H
# include <string.h>
# else
# ifdef HAVE_STRINGS_H
# include <strings.h>
# endif
# endif
#endif
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
/* When compiling C++ we need to include <cstdlib> as well as <stdlib.h> so
that it is processed before we poison "malloc"; otherwise, if a source
file uses a standard library header that includes <cstdlib>, we will get
an error about 'using std::malloc'. */
#ifdef __cplusplus
#include <cstdlib>
#endif
/* Undef vec_free from AIX stdlib.h header which conflicts with vec.h. */
#undef vec_free
/* If we don't have an overriding definition, set SUCCESS_EXIT_CODE and
FATAL_EXIT_CODE to EXIT_SUCCESS and EXIT_FAILURE respectively,
or 0 and 1 if those macros are not defined. */
#ifndef SUCCESS_EXIT_CODE
# ifdef EXIT_SUCCESS
# define SUCCESS_EXIT_CODE EXIT_SUCCESS
# else
# define SUCCESS_EXIT_CODE 0
# endif
#endif
#ifndef FATAL_EXIT_CODE
# ifdef EXIT_FAILURE
# define FATAL_EXIT_CODE EXIT_FAILURE
# else
# define FATAL_EXIT_CODE 1
# endif
#endif
#define ICE_EXIT_CODE 4
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
/* We use these identifiers later and they appear in some vendor param.h's. */
# undef PREFETCH
# undef m_slot
#endif
#if HAVE_LIMITS_H
# include <limits.h>
#endif
/* A macro to determine whether a VALUE lies inclusively within a
certain range without evaluating the VALUE more than once. This
macro won't warn if the VALUE is unsigned and the LOWER bound is
zero, as it would e.g. with "VALUE >= 0 && ...". Note the LOWER
bound *is* evaluated twice, and LOWER must not be greater than
UPPER. However the bounds themselves can be either positive or
negative. */
#define IN_RANGE(VALUE, LOWER, UPPER) \
((unsigned HOST_WIDE_INT) (VALUE) - (unsigned HOST_WIDE_INT) (LOWER) \
<= (unsigned HOST_WIDE_INT) (UPPER) - (unsigned HOST_WIDE_INT) (LOWER))
/* Infrastructure for defining missing _MAX and _MIN macros. Note that
macros defined with these cannot be used in #if. */
/* The extra casts work around common compiler bugs. */
#define INTTYPE_SIGNED(t) (! ((t) 0 < (t) -1))
/* The outer cast is needed to work around a bug in Cray C 5.0.3.0.
It is necessary at least when t == time_t. */
#define INTTYPE_MINIMUM(t) ((t) (INTTYPE_SIGNED (t) \
? (t) 1 << (sizeof (t) * CHAR_BIT - 1) : (t) 0))
#define INTTYPE_MAXIMUM(t) ((t) (~ (t) 0 - INTTYPE_MINIMUM (t)))
/* Use that infrastructure to provide a few constants. */
#ifndef UCHAR_MAX
# define UCHAR_MAX INTTYPE_MAXIMUM (unsigned char)
#endif
#ifdef TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# ifdef HAVE_TIME_H
# include <time.h>
# endif
# endif
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#else
# ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
# endif
#endif
#ifndef SEEK_SET
# define SEEK_SET 0
# define SEEK_CUR 1
# define SEEK_END 2
#endif
#ifndef F_OK
# define F_OK 0
# define X_OK 1
# define W_OK 2
# define R_OK 4
#endif
#ifndef O_RDONLY
# define O_RDONLY 0
#endif
#ifndef O_WRONLY
# define O_WRONLY 1
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
/* Some systems define these in, e.g., param.h. We undefine these names
here to avoid the warnings. We prefer to use our definitions since we
know they are correct. */
#undef MIN
#undef MAX
#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
#define MAX(X,Y) ((X) > (Y) ? (X) : (Y))
/* Returns the least number N such that N * Y >= X. */
#define CEIL(x,y) (((x) + (y) - 1) / (y))
/* This macro rounds x up to the y boundary. */
#define ROUND_UP(x,y) (((x) + (y) - 1) & ~((y) - 1))
/* This macro rounds x down to the y boundary. */
#define ROUND_DOWN(x,y) ((x) & ~((y) - 1))
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifndef WIFSIGNALED
#define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
#endif
#ifndef WTERMSIG
#define WTERMSIG(S) ((S) & 0x7f)
#endif
#ifndef WIFEXITED
#define WIFEXITED(S) (((S) & 0xff) == 0)
#endif
#ifndef WEXITSTATUS
#define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
#endif
#ifndef WSTOPSIG
#define WSTOPSIG WEXITSTATUS
#endif
#ifndef WCOREDUMP
#define WCOREDUMP(S) ((S) & WCOREFLG)
#endif
#ifndef WCOREFLG
#define WCOREFLG 0200
#endif
#include <signal.h>
#if !defined (SIGCHLD) && defined (SIGCLD)
# define SIGCHLD SIGCLD
#endif
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#ifndef MAP_FAILED
# define MAP_FAILED ((void *)-1)
#endif
#if !defined (MAP_ANONYMOUS) && defined (MAP_ANON)
# define MAP_ANONYMOUS MAP_ANON
#endif
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#ifdef HAVE_SYS_TIMES_H
# include <sys/times.h>
#endif
/* The HAVE_DECL_* macros are three-state, undefined, 0 or 1. If they
are defined to 0 then we must provide the relevant declaration
here. These checks will be in the undefined state while configure
is running so be careful to test "defined (HAVE_DECL_*)". */
#ifdef __cplusplus
extern "C" {
#endif
#if defined (HAVE_DECL_ATOF) && !HAVE_DECL_ATOF
extern double atof (const char *);
#endif
#if defined (HAVE_DECL_ATOL) && !HAVE_DECL_ATOL
extern long atol (const char *);
#endif
#if defined (HAVE_DECL_FREE) && !HAVE_DECL_FREE
extern void free (void *);
#endif
#if defined (HAVE_DECL_GETCWD) && !HAVE_DECL_GETCWD
extern char *getcwd (char *, size_t);
#endif
#if defined (HAVE_DECL_GETENV) && !HAVE_DECL_GETENV
extern char *getenv (const char *);
#endif
#if defined (HAVE_DECL_GETOPT) && !HAVE_DECL_GETOPT
extern int getopt (int, char * const *, const char *);
#endif
#if defined (HAVE_DECL_GETPAGESIZE) && !HAVE_DECL_GETPAGESIZE
extern int getpagesize (void);
#endif
#if defined (HAVE_DECL_GETWD) && !HAVE_DECL_GETWD
extern char *getwd (char *);
#endif
#if defined (HAVE_DECL_SBRK) && !HAVE_DECL_SBRK
extern void *sbrk (int);
#endif
#if defined (HAVE_DECL_SETENV) && !HAVE_DECL_SETENV
int setenv(const char *, const char *, int);
#endif
#if defined (HAVE_DECL_STRSTR) && !HAVE_DECL_STRSTR
extern char *strstr (const char *, const char *);
#endif
#if defined (HAVE_DECL_STPCPY) && !HAVE_DECL_STPCPY
extern char *stpcpy (char *, const char *);
#endif
#if defined (HAVE_DECL_UNSETENV) && !HAVE_DECL_UNSETENV
int unsetenv(const char *);
#endif
#if defined (HAVE_DECL_MALLOC) && !HAVE_DECL_MALLOC
extern void *malloc (size_t);
#endif
#if defined (HAVE_DECL_CALLOC) && !HAVE_DECL_CALLOC
extern void *calloc (size_t, size_t);
#endif
#if defined (HAVE_DECL_REALLOC) && !HAVE_DECL_REALLOC
extern void *realloc (void *, size_t);
#endif
#ifdef __cplusplus
}
#endif
#ifdef HAVE_STDINT_H
#include <stdint.h>
#endif
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* If the system doesn't provide strsignal, we get it defined in
libiberty but no declaration is supplied. */
#if !defined (HAVE_STRSIGNAL) \
|| (defined (HAVE_DECL_STRSIGNAL) && !HAVE_DECL_STRSIGNAL)
# ifndef strsignal
extern const char *strsignal (int);
# endif
#endif
#ifdef HAVE_GETRLIMIT
# if defined (HAVE_DECL_GETRLIMIT) && !HAVE_DECL_GETRLIMIT
# ifndef getrlimit
struct rlimit;
extern int getrlimit (int, struct rlimit *);
# endif
# endif
#endif
#ifdef HAVE_SETRLIMIT
# if defined (HAVE_DECL_SETRLIMIT) && !HAVE_DECL_SETRLIMIT
# ifndef setrlimit
struct rlimit;
extern int setrlimit (int, const struct rlimit *);
# endif
# endif
#endif
#if defined (HAVE_DECL_ABORT) && !HAVE_DECL_ABORT
extern void abort (void);
#endif
#if defined (HAVE_DECL_SNPRINTF) && !HAVE_DECL_SNPRINTF
extern int snprintf (char *, size_t, const char *, ...);
#endif
#if defined (HAVE_DECL_VSNPRINTF) && !HAVE_DECL_VSNPRINTF
extern int vsnprintf (char *, size_t, const char *, va_list);
#endif
#ifdef __cplusplus
}
#endif
/* 1 if we have C99 designated initializers. */
#if !defined(HAVE_DESIGNATED_INITIALIZERS)
#ifdef __cplusplus
#define HAVE_DESIGNATED_INITIALIZERS 0
#else
#define HAVE_DESIGNATED_INITIALIZERS \
((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
#endif
#endif
#if !defined(HAVE_DESIGNATED_UNION_INITIALIZERS)
#ifdef __cplusplus
#define HAVE_DESIGNATED_UNION_INITIALIZERS (GCC_VERSION >= 4007)
#else
#define HAVE_DESIGNATED_UNION_INITIALIZERS \
((GCC_VERSION >= 2007) || (__STDC_VERSION__ >= 199901L))
#endif
#endif
#if HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
/* Test if something is a normal file. */
#ifndef S_ISREG
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
/* Test if something is a directory. */
#ifndef S_ISDIR
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
/* Test if something is a character special file. */
#ifndef S_ISCHR
#define S_ISCHR(m) (((m) & S_IFMT) == S_IFCHR)
#endif
/* Test if something is a block special file. */
#ifndef S_ISBLK
#define S_ISBLK(m) (((m) & S_IFMT) == S_IFBLK)
#endif
/* Test if something is a socket. */
#ifndef S_ISSOCK
# ifdef S_IFSOCK
# define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)
# else
# define S_ISSOCK(m) 0
# endif
#endif
/* Test if something is a FIFO. */
#ifndef S_ISFIFO
# ifdef S_IFIFO
# define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)
# else
# define S_ISFIFO(m) 0
# endif
#endif
/* Define well known filenos if the system does not define them. */
#ifndef STDIN_FILENO
# define STDIN_FILENO 0
#endif
#ifndef STDOUT_FILENO
# define STDOUT_FILENO 1
#endif
#ifndef STDERR_FILENO
# define STDERR_FILENO 2
#endif
/* Some systems have mkdir that takes a single argument. */
#ifdef MKDIR_TAKES_ONE_ARG
# define mkdir(a,b) mkdir (a)
#endif
#ifndef HAVE_KILL
# define kill(p,s) raise (s)
#endif
/* Provide a way to print an address via printf. */
#ifndef HOST_PTR_PRINTF
#define HOST_PTR_PRINTF "%p"
#endif /* ! HOST_PTR_PRINTF */
/* By default, colon separates directories in a path. */
#ifndef PATH_SEPARATOR
#define PATH_SEPARATOR ':'
#endif
/* Filename handling macros. */
#include "filenames.h"
/* These should be phased out in favor of IS_DIR_SEPARATOR, where possible. */
#ifndef DIR_SEPARATOR
# define DIR_SEPARATOR '/'
# ifdef HAVE_DOS_BASED_FILE_SYSTEM
# define DIR_SEPARATOR_2 '\\'
# endif
#endif
#if defined (ENABLE_PLUGIN) && defined (HAVE_DLFCN_H)
/* If plugin support is enabled, we could use libdl. */
#include <dlfcn.h>
#endif
/* Do not introduce a gmp.h dependency on the build system. */
#ifndef GENERATOR_FILE
#include <gmp.h>
#endif
/* Get libiberty declarations. */
#include "libiberty.h"
#undef FFS /* Some systems predefine this symbol; don't let it interfere. */
#undef FLOAT /* Likewise. */
#undef ABS /* Likewise. */
#undef PC /* Likewise. */
/* Provide a default for the HOST_BIT_BUCKET.
This suffices for POSIX-like hosts. */
#ifndef HOST_BIT_BUCKET
#define HOST_BIT_BUCKET "/dev/null"
#endif
#ifndef offsetof
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
#endif
/* Various error reporting routines want to use __FUNCTION__. */
#if (GCC_VERSION < 2007)
#ifndef __FUNCTION__
#define __FUNCTION__ "?"
#endif /* ! __FUNCTION__ */
#endif
/* __builtin_expect(A, B) evaluates to A, but notifies the compiler that
the most likely value of A is B. This feature was added at some point
between 2.95 and 3.0. Let's use 3.0 as the lower bound for now. */
#if (GCC_VERSION < 3000)
#define __builtin_expect(a, b) (a)
#endif
/* Redefine abort to report an internal error w/o coredump, and
reporting the location of the error in the source file. */
extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
#define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__)
/* Use gcc_assert(EXPR) to test invariants. */
#if ENABLE_ASSERT_CHECKING
#define gcc_assert(EXPR) \
((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0))
#elif (GCC_VERSION >= 4005)
#define gcc_assert(EXPR) \
((void)(__builtin_expect (!(EXPR), 0) ? __builtin_unreachable (), 0 : 0))
#else
/* Include EXPR, so that unused variable warnings do not occur. */
#define gcc_assert(EXPR) ((void)(0 && (EXPR)))
#endif
#if CHECKING_P
#define gcc_checking_assert(EXPR) gcc_assert (EXPR)
#else
/* N.B.: in release build EXPR is not evaluated. */
#define gcc_checking_assert(EXPR) ((void)(0 && (EXPR)))
#endif
/* Use gcc_unreachable() to mark unreachable locations (like an
unreachable default case of a switch. Do not use gcc_assert(0). */
#if (GCC_VERSION >= 4005) && !ENABLE_ASSERT_CHECKING
#define gcc_unreachable() __builtin_unreachable ()
#else
#define gcc_unreachable() (fancy_abort (__FILE__, __LINE__, __FUNCTION__))
#endif
#if GCC_VERSION >= 7000 && defined(__has_attribute)
# if __has_attribute(fallthrough)
# define gcc_fallthrough() __attribute__((fallthrough))
# else
# define gcc_fallthrough()
# endif
#else
# define gcc_fallthrough()
#endif
#if GCC_VERSION >= 3001
#define STATIC_CONSTANT_P(X) (__builtin_constant_p (X) && (X))
#else
#define STATIC_CONSTANT_P(X) (false && (X))
#endif
/* static_assert (COND, MESSAGE) is available in C++11 onwards. */
#if __cplusplus >= 201103L
#define STATIC_ASSERT(X) \
static_assert ((X), #X)
#else
#define STATIC_ASSERT(X) \
typedef int assertion1[(X) ? 1 : -1] ATTRIBUTE_UNUSED
#endif
/* Provide a fake boolean type. We make no attempt to use the
C99 _Bool, as it may not be available in the bootstrap compiler,
and even if it is, it is liable to be buggy.
This must be after all inclusion of system headers, as some of
them will mess us up. */
#undef TRUE
#undef FALSE
#ifdef __cplusplus
/* Obsolete. */
# define TRUE true
# define FALSE false
#else /* !__cplusplus */
# undef bool
# undef true
# undef false
# define bool unsigned char
# define true 1
# define false 0
/* Obsolete. */
# define TRUE true
# define FALSE false
#endif /* !__cplusplus */
/* Some compilers do not allow the use of unsigned char in bitfields. */
#define BOOL_BITFIELD unsigned int
/* As the last action in this file, we poison the identifiers that
shouldn't be used. Note, luckily gcc-3.0's token-based integrated
preprocessor won't trip on poisoned identifiers that arrive from
the expansion of macros. E.g. #define strrchr rindex, won't error
if rindex is poisoned after this directive is issued and later on
strrchr is called.
Note: We define bypass macros for the few cases where we really
want to use the libc memory allocation routines. Otherwise we
insist you use the "x" versions from libiberty. */
#define really_call_malloc malloc
#define really_call_calloc calloc
#define really_call_realloc realloc
#if defined(FLEX_SCANNER) || defined(YYBISON) || defined(YYBYACC)
/* Flex and bison use malloc and realloc. Yuk. Note that this means
really_call_* cannot be used in a .l or .y file. */
#define malloc xmalloc
#define realloc xrealloc
#endif
#if (GCC_VERSION >= 3000)
/* Note autoconf checks for prototype declarations and includes
system.h while doing so. Only poison these tokens if actually
compiling gcc, so that the autoconf declaration tests for malloc
etc don't spuriously fail. */
#ifdef IN_GCC
#ifndef USES_ISL
#undef calloc
#undef strdup
#undef strndup
#pragma GCC poison calloc strdup strndup
#endif
#if !defined(FLEX_SCANNER) && !defined(YYBISON)
#undef malloc
#undef realloc
#pragma GCC poison malloc realloc
#endif
/* The %m format should be used when GCC's main diagnostic functions
supporting %m are available, and xstrerror from libiberty
otherwise. */
#undef strerror
#pragma GCC poison strerror
/* loc_t is defined on some systems and too inviting for some
programmers to avoid. */
#undef loc_t
#pragma GCC poison loc_t
/* Old target macros that have moved to the target hooks structure. */
#pragma GCC poison ASM_OPEN_PAREN ASM_CLOSE_PAREN \
FUNCTION_PROLOGUE FUNCTION_EPILOGUE \
FUNCTION_END_PROLOGUE FUNCTION_BEGIN_EPILOGUE \
DECL_MACHINE_ATTRIBUTES COMP_TYPE_ATTRIBUTES INSERT_ATTRIBUTES \
VALID_MACHINE_DECL_ATTRIBUTE VALID_MACHINE_TYPE_ATTRIBUTE \
SET_DEFAULT_TYPE_ATTRIBUTES SET_DEFAULT_DECL_ATTRIBUTES \
MERGE_MACHINE_TYPE_ATTRIBUTES MERGE_MACHINE_DECL_ATTRIBUTES \
MD_INIT_BUILTINS MD_EXPAND_BUILTIN ASM_OUTPUT_CONSTRUCTOR \
ASM_OUTPUT_DESTRUCTOR SIGNED_CHAR_SPEC MAX_CHAR_TYPE_SIZE \
WCHAR_UNSIGNED UNIQUE_SECTION SELECT_SECTION SELECT_RTX_SECTION \
ENCODE_SECTION_INFO STRIP_NAME_ENCODING ASM_GLOBALIZE_LABEL \
ASM_OUTPUT_MI_THUNK CONST_COSTS RTX_COSTS DEFAULT_RTX_COSTS \
ADDRESS_COST MACHINE_DEPENDENT_REORG ASM_FILE_START ASM_FILE_END \
ASM_SIMPLIFY_DWARF_ADDR INIT_TARGET_OPTABS INIT_SUBTARGET_OPTABS \
INIT_GOFAST_OPTABS MULSI3_LIBCALL MULDI3_LIBCALL DIVSI3_LIBCALL \
DIVDI3_LIBCALL UDIVSI3_LIBCALL UDIVDI3_LIBCALL MODSI3_LIBCALL \
MODDI3_LIBCALL UMODSI3_LIBCALL UMODDI3_LIBCALL BUILD_VA_LIST_TYPE \
PRETEND_OUTGOING_VARARGS_NAMED STRUCT_VALUE_INCOMING_REGNUM \
ASM_OUTPUT_SECTION_NAME PROMOTE_FUNCTION_ARGS PROMOTE_FUNCTION_MODE \
STRUCT_VALUE_INCOMING STRICT_ARGUMENT_NAMING \
PROMOTE_FUNCTION_RETURN PROMOTE_PROTOTYPES STRUCT_VALUE_REGNUM \
SETUP_INCOMING_VARARGS EXPAND_BUILTIN_SAVEREGS \
DEFAULT_SHORT_ENUMS SPLIT_COMPLEX_ARGS MD_ASM_CLOBBERS \
HANDLE_PRAGMA_REDEFINE_EXTNAME HANDLE_PRAGMA_EXTERN_PREFIX \
MUST_PASS_IN_STACK FUNCTION_ARG_PASS_BY_REFERENCE \
VECTOR_MODE_SUPPORTED_P TARGET_SUPPORTS_HIDDEN \
FUNCTION_ARG_PARTIAL_NREGS ASM_OUTPUT_DWARF_DTPREL \
ALLOCATE_INITIAL_VALUE LEGITIMIZE_ADDRESS FRAME_POINTER_REQUIRED \
CAN_ELIMINATE TRAMPOLINE_TEMPLATE INITIALIZE_TRAMPOLINE \
TRAMPOLINE_ADJUST_ADDRESS STATIC_CHAIN STATIC_CHAIN_INCOMING \
RETURN_POPS_ARGS UNITS_PER_SIMD_WORD OVERRIDE_OPTIONS \
OPTIMIZATION_OPTIONS CLASS_LIKELY_SPILLED_P \
USING_SJLJ_EXCEPTIONS TARGET_UNWIND_INFO \
LABEL_ALIGN_MAX_SKIP LOOP_ALIGN_MAX_SKIP \
LABEL_ALIGN_AFTER_BARRIER_MAX_SKIP JUMP_ALIGN_MAX_SKIP \
CAN_DEBUG_WITHOUT_FP UNLIKELY_EXECUTED_TEXT_SECTION_NAME \
HOT_TEXT_SECTION_NAME LEGITIMATE_CONSTANT_P ALWAYS_STRIP_DOTDOT \
OUTPUT_ADDR_CONST_EXTRA SMALL_REGISTER_CLASSES ASM_OUTPUT_IDENT \
ASM_BYTE_OP MEMBER_TYPE_FORCES_BLK LIBGCC2_HAS_SF_MODE \
LIBGCC2_HAS_DF_MODE LIBGCC2_HAS_XF_MODE LIBGCC2_HAS_TF_MODE \
CLEAR_BY_PIECES_P MOVE_BY_PIECES_P SET_BY_PIECES_P \
STORE_BY_PIECES_P TARGET_FLT_EVAL_METHOD
/* Target macros only used for code built for the target, that have
moved to libgcc-tm.h or have never been present elsewhere. */
#pragma GCC poison DECLARE_LIBRARY_RENAMES LIBGCC2_GNU_PREFIX \
MD_UNWIND_SUPPORT MD_FROB_UPDATE_CONTEXT ENABLE_EXECUTE_STACK \
REG_VALUE_IN_UNWIND_CONTEXT ASSUME_EXTENDED_UNWIND_CONTEXT
/* Other obsolete target macros, or macros that used to be in target
headers and were not used, and may be obsolete or may never have
been used. */
#pragma GCC poison INT_ASM_OP ASM_OUTPUT_EH_REGION_BEG CPP_PREDEFINES \
ASM_OUTPUT_EH_REGION_END ASM_OUTPUT_LABELREF_AS_INT SMALL_STACK \
DOESNT_NEED_UNWINDER EH_TABLE_LOOKUP OBJC_SELECTORS_WITHOUT_LABELS \
OMIT_EH_TABLE EASY_DIV_EXPR IMPLICIT_FIX_EXPR \
LONGJMP_RESTORE_FROM_STACK MAX_INT_TYPE_SIZE ASM_IDENTIFY_GCC \
STDC_VALUE TRAMPOLINE_ALIGN ASM_IDENTIFY_GCC_AFTER_SOURCE \
SLOW_ZERO_EXTEND SUBREG_REGNO_OFFSET DWARF_LINE_MIN_INSTR_LENGTH \
TRADITIONAL_RETURN_FLOAT NO_BUILTIN_SIZE_TYPE \
NO_BUILTIN_PTRDIFF_TYPE NO_BUILTIN_WCHAR_TYPE NO_BUILTIN_WINT_TYPE \
BLOCK_PROFILER BLOCK_PROFILER_CODE FUNCTION_BLOCK_PROFILER \
FUNCTION_BLOCK_PROFILER_EXIT MACHINE_STATE_SAVE \
MACHINE_STATE_RESTORE SCCS_DIRECTIVE SECTION_ASM_OP BYTEORDER \
ASM_OUTPUT_DEFINE_LABEL_DIFFERENCE_SYMBOL HOST_WORDS_BIG_ENDIAN \
OBJC_PROLOGUE ALLOCATE_TRAMPOLINE HANDLE_PRAGMA ROUND_TYPE_SIZE \
ROUND_TYPE_SIZE_UNIT CONST_SECTION_ASM_OP CRT_GET_RFIB_TEXT \
DBX_LBRAC_FIRST DBX_OUTPUT_ENUM DBX_OUTPUT_SOURCE_FILENAME \
DBX_WORKING_DIRECTORY INSN_CACHE_DEPTH INSN_CACHE_SIZE \
INSN_CACHE_LINE_WIDTH INIT_SECTION_PREAMBLE NEED_ATEXIT ON_EXIT \
EXIT_BODY OBJECT_FORMAT_ROSE MULTIBYTE_CHARS MAP_CHARACTER \
LIBGCC_NEEDS_DOUBLE FINAL_PRESCAN_LABEL DEFAULT_CALLER_SAVES \
LOAD_ARGS_REVERSED MAX_INTEGER_COMPUTATION_MODE \
CONVERT_HARD_REGISTER_TO_SSA_P ASM_OUTPUT_MAIN_SOURCE_FILENAME \
FIRST_INSN_ADDRESS TEXT_SECTION SHARED_BSS_SECTION_ASM_OP \
PROMOTED_MODE EXPAND_BUILTIN_VA_END \
LINKER_DOES_NOT_WORK_WITH_DWARF2 FUNCTION_ARG_KEEP_AS_REFERENCE \
GIV_SORT_CRITERION MAX_LONG_TYPE_SIZE MAX_LONG_DOUBLE_TYPE_SIZE \
MAX_WCHAR_TYPE_SIZE SHARED_SECTION_ASM_OP INTEGRATE_THRESHOLD \
FINAL_REG_PARM_STACK_SPACE MAYBE_REG_PARM_STACK_SPACE \
TRADITIONAL_PIPELINE_INTERFACE DFA_PIPELINE_INTERFACE \
DBX_OUTPUT_STANDARD_TYPES BUILTIN_SETJMP_FRAME_VALUE \
SUNOS4_SHARED_LIBRARIES PROMOTE_FOR_CALL_ONLY \
SPACE_AFTER_L_OPTION NO_RECURSIVE_FUNCTION_CSE \
DEFAULT_MAIN_RETURN TARGET_MEM_FUNCTIONS EXPAND_BUILTIN_VA_ARG \
COLLECT_PARSE_FLAG DWARF2_GENERATE_TEXT_SECTION_LABEL WINNING_GDB \
ASM_OUTPUT_FILENAME ASM_OUTPUT_SOURCE_LINE FILE_NAME_JOINER \
GDB_INV_REF_REGPARM_STABS_LETTER DBX_MEMPARM_STABS_LETTER \
PUT_SDB_SRC_FILE STABS_GCC_MARKER DBX_OUTPUT_FUNCTION_END \
DBX_OUTPUT_GCC_MARKER DBX_FINISH_SYMBOL SDB_GENERATE_FAKE \
NON_SAVING_SETJMP TARGET_LATE_RTL_PROLOGUE_EPILOGUE \
CASE_DROPS_THROUGH TARGET_BELL TARGET_BS TARGET_CR TARGET_DIGIT0 \
TARGET_ESC TARGET_FF TARGET_NEWLINE TARGET_TAB TARGET_VT \
LINK_LIBGCC_SPECIAL DONT_ACCESS_GBLS_AFTER_EPILOGUE \
TARGET_OPTIONS TARGET_SWITCHES EXTRA_CC_MODES FINALIZE_PIC \
PREDICATE_CODES SPECIAL_MODE_PREDICATES UNALIGNED_WORD_ASM_OP \
EXTRA_SECTIONS EXTRA_SECTION_FUNCTIONS READONLY_DATA_SECTION \
TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \
SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \
ASM_OUTPUT_SHARED_LOCAL ASM_MAKE_LABEL_LINKONCE \
STACK_CHECK_PROBE_INTERVAL STACK_CHECK_PROBE_LOAD \
ORDER_REGS_FOR_LOCAL_ALLOC FUNCTION_OUTGOING_VALUE \
ASM_DECLARE_CONSTANT_NAME MODIFY_TARGET_NAME SWITCHES_NEED_SPACES \
SWITCH_CURTAILS_COMPILATION SWITCH_TAKES_ARG WORD_SWITCH_TAKES_ARG \
TARGET_OPTION_TRANSLATE_TABLE HANDLE_PRAGMA_PACK_PUSH_POP \
HANDLE_SYSV_PRAGMA HANDLE_PRAGMA_WEAK CONDITIONAL_REGISTER_USAGE \
FUNCTION_ARG_BOUNDARY MUST_USE_SJLJ_EXCEPTIONS US_SOFTWARE_GOFAST \
USING_SVR4_H SVR4_ASM_SPEC FUNCTION_ARG FUNCTION_ARG_ADVANCE \
FUNCTION_INCOMING_ARG IRA_COVER_CLASSES TARGET_VERSION \
MACHINE_TYPE TARGET_HAS_TARGETCM ASM_OUTPUT_BSS \
SETJMP_VIA_SAVE_AREA FORBIDDEN_INC_DEC_CLASSES \
PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
IDENT_ASM_OP ALL_COP_ADDITIONAL_REGISTER_NAMES DBX_OUTPUT_LBRAC \
DBX_OUTPUT_NFUN DBX_OUTPUT_RBRAC RANGE_TEST_NON_SHORT_CIRCUIT \
REAL_VALUE_TRUNCATE REVERSE_CONDEXEC_PREDICATES_P \
TARGET_ALIGN_ANON_BITFIELDS TARGET_NARROW_VOLATILE_BITFIELDS \
IDENT_ASM_OP UNALIGNED_SHORT_ASM_OP UNALIGNED_INT_ASM_OP \
UNALIGNED_LONG_ASM_OP UNALIGNED_DOUBLE_INT_ASM_OP \
USE_COMMON_FOR_ONE_ONLY IFCVT_EXTRA_FIELDS IFCVT_INIT_EXTRA_FIELDS \
CASE_USE_BIT_TESTS FIXUNS_TRUNC_LIKE_FIX_TRUNC \
GO_IF_MODE_DEPENDENT_ADDRESS DELAY_SLOTS_FOR_EPILOGUE \
ELIGIBLE_FOR_EPILOGUE_DELAY TARGET_C99_FUNCTIONS TARGET_HAS_SINCOS \
REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \
CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT \
REG_CLASS_FROM_CONSTRAINT REG_CLASS_FOR_CONSTRAINT \
EXTRA_CONSTRAINT_STR EXTRA_MEMORY_CONSTRAINT \
EXTRA_ADDRESS_CONSTRAINT CONST_DOUBLE_OK_FOR_CONSTRAINT_P \
CALLER_SAVE_PROFITABLE LARGEST_EXPONENT_IS_NORMAL \
ROUND_TOWARDS_ZERO SF_SIZE DF_SIZE XF_SIZE TF_SIZE LIBGCC2_TF_CEXT \
LIBGCC2_LONG_DOUBLE_TYPE_SIZE STRUCT_VALUE \
EH_FRAME_IN_DATA_SECTION TARGET_FLT_EVAL_METHOD_NON_DEFAULT \
JCR_SECTION_NAME TARGET_USE_JCR_SECTION
/* Hooks that are no longer used. */
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
LANG_HOOKS_MARK_TREE LANG_HOOKS_INSERT_DEFAULT_ATTRIBUTES \
LANG_HOOKS_TREE_INLINING_ESTIMATE_NUM_INSNS \
LANG_HOOKS_PUSHLEVEL LANG_HOOKS_SET_BLOCK \
LANG_HOOKS_MAYBE_BUILD_CLEANUP LANG_HOOKS_UPDATE_DECL_AFTER_SAVING \
LANG_HOOKS_POPLEVEL LANG_HOOKS_TRUTHVALUE_CONVERSION \
TARGET_PROMOTE_FUNCTION_ARGS TARGET_PROMOTE_FUNCTION_RETURN \
LANG_HOOKS_MISSING_ARGUMENT LANG_HOOKS_HASH_TYPES \
TARGET_HANDLE_OFAST TARGET_OPTION_OPTIMIZATION \
TARGET_IRA_COVER_CLASSES TARGET_HELP \
TARGET_HANDLE_PRAGMA_EXTERN_PREFIX \
TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN \
TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD \
TARGET_MD_ASM_CLOBBERS TARGET_RELAXED_ORDERING \
EXTENDED_SDB_BASIC_TYPES TARGET_INVALID_PARAMETER_TYPE \
TARGET_INVALID_RETURN_TYPE
/* Arrays that were deleted in favor of a functional interface. */
#pragma GCC poison built_in_decls implicit_built_in_decls
/* Hooks into libgcc2. */
#pragma GCC poison LIBGCC2_DOUBLE_TYPE_SIZE LIBGCC2_WORDS_BIG_ENDIAN \
LIBGCC2_FLOAT_WORDS_BIG_ENDIAN
/* Miscellaneous macros that are no longer used. */
#pragma GCC poison USE_MAPPED_LOCATION GET_ENVIRONMENT
/* Libiberty macros that are no longer used in GCC. */
#undef ANSI_PROTOTYPES
#undef PTR_CONST
#undef LONG_DOUBLE
#undef VPARAMS
#undef VA_OPEN
#undef VA_FIXEDARG
#undef VA_CLOSE
#undef VA_START
#pragma GCC poison ANSI_PROTOTYPES PTR_CONST LONG_DOUBLE VPARAMS VA_OPEN \
VA_FIXEDARG VA_CLOSE VA_START
#endif /* IN_GCC */
/* Front ends should never have to include middle-end headers. Enforce
this by poisoning the header double-include protection defines. */
#ifdef IN_GCC_FRONTEND
#pragma GCC poison GCC_RTL_H GCC_EXCEPT_H GCC_EXPR_H
#endif
/* Note: not all uses of the `index' token (e.g. variable names and
structure members) have been eliminated. */
#undef bcopy
#undef bzero
#undef bcmp
#undef rindex
#pragma GCC poison bcopy bzero bcmp rindex
/* Poison ENABLE_CHECKING macro that should be replaced with
'if (flag_checking)', or with CHECKING_P macro. */
#pragma GCC poison ENABLE_CHECKING
#endif /* GCC >= 3.0 */
/* This macro allows casting away const-ness to pass -Wcast-qual
warnings. DO NOT USE THIS UNLESS YOU REALLY HAVE TO! It should
only be used in certain specific cases. One valid case is where
the C standard definitions or prototypes force you to. E.g. if you
need to free a const object, or if you pass a const string to
execv, et al. Another valid use would be in an allocation function
that creates const objects that need to be initialized. In some
cases we have non-const functions that return the argument
(e.g. next_nonnote_insn). Rather than create const shadow
functions, we can cast away const-ness in calling these interfaces
if we're careful to verify that the called function does indeed not
modify its argument and the return value is only used in a const
context. (This can be somewhat dangerous as these assumptions can
change after the fact). Beyond these uses, most other cases of
using this macro should be viewed with extreme caution. */
#ifdef __cplusplus
#define CONST_CAST2(TOTYPE,FROMTYPE,X) (const_cast<TOTYPE> (X))
#else
#if defined(__GNUC__) && GCC_VERSION > 4000
/* GCC 4.0.x has a bug where it may ICE on this expression,
so does GCC 3.4.x (PR17436). */
#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((__extension__(union {FROMTYPE _q; TOTYPE _nq;})(X))._nq)
#elif defined(__GNUC__)
static inline char *
helper_const_non_const_cast (const char *p)
{
union {
const char *const_c;
char *c;
} val;
val.const_c = p;
return val.c;
}
#define CONST_CAST2(TOTYPE,FROMTYPE,X) \
((TOTYPE) helper_const_non_const_cast ((const char *) (FROMTYPE) (X)))
#else
#define CONST_CAST2(TOTYPE,FROMTYPE,X) ((TOTYPE)(FROMTYPE)(X))
#endif
#endif
#define CONST_CAST(TYPE,X) CONST_CAST2 (TYPE, const TYPE, (X))
#define CONST_CAST_TREE(X) CONST_CAST (union tree_node *, (X))
#define CONST_CAST_RTX(X) CONST_CAST (struct rtx_def *, (X))
#define CONST_CAST_RTX_INSN(X) CONST_CAST (struct rtx_insn *, (X))
#define CONST_CAST_BB(X) CONST_CAST (struct basic_block_def *, (X))
#define CONST_CAST_GIMPLE(X) CONST_CAST (gimple *, (X))
/* Activate certain diagnostics as warnings (not errors via the
-Werror flag). */
#if GCC_VERSION >= 4003
/* If asserts are disabled, activate -Wuninitialized as a warning (not
an error/-Werror). */
#ifndef ENABLE_ASSERT_CHECKING
#pragma GCC diagnostic warning "-Wuninitialized"
#endif
#endif
#ifdef ENABLE_VALGRIND_ANNOTATIONS
# ifdef HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
# elif defined HAVE_MEMCHECK_H
# include <memcheck.h>
# else
# include <valgrind.h>
# endif
/* Compatibility macros to let valgrind 3.1 work. */
# ifndef VALGRIND_MAKE_MEM_NOACCESS
# define VALGRIND_MAKE_MEM_NOACCESS VALGRIND_MAKE_NOACCESS
# endif
# ifndef VALGRIND_MAKE_MEM_DEFINED
# define VALGRIND_MAKE_MEM_DEFINED VALGRIND_MAKE_READABLE
# endif
# ifndef VALGRIND_MAKE_MEM_UNDEFINED
# define VALGRIND_MAKE_MEM_UNDEFINED VALGRIND_MAKE_WRITABLE
# endif
#else
/* Avoid #ifdef:s when we can help it. */
#define VALGRIND_DISCARD(x)
#define VALGRIND_MALLOCLIKE_BLOCK(w,x,y,z)
#define VALGRIND_FREELIKE_BLOCK(x,y)
#endif
/* Macros to temporarily ignore some warnings. */
#if GCC_VERSION >= 6000
#define GCC_DIAGNOSTIC_STRINGIFY(x) #x
#define GCC_DIAGNOSTIC_PUSH_IGNORED(x) \
_Pragma ("GCC diagnostic push") \
_Pragma (GCC_DIAGNOSTIC_STRINGIFY (GCC diagnostic ignored #x))
#define GCC_DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
#else
#define GCC_DIAGNOSTIC_PUSH_IGNORED(x)
#define GCC_DIAGNOSTIC_POP
#endif
/* In LTO -fwhole-program build we still want to keep the debug functions available
for debugger. Mark them as used to prevent removal. */
#if (GCC_VERSION > 4000)
#define DEBUG_FUNCTION __attribute__ ((__used__))
#define DEBUG_VARIABLE __attribute__ ((__used__))
#else
#define DEBUG_FUNCTION
#define DEBUG_VARIABLE
#endif
/* General macro to extract bit Y of X. */
#define TEST_BIT(X, Y) (((X) >> (Y)) & 1)
/* Get definitions of HOST_WIDE_INT. */
#include "hwint.h"
#endif /* ! GCC_SYSTEM_H */