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131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/* Portability cruft. Include after config.h and sys/types.h.
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Copyright 1996, 1998-2000, 2007, 2009-2026 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef GREP_SYSTEM_H
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#define GREP_SYSTEM_H 1
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include "configmake.h"
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#include "dirname.h"
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#include "ignore-value.h"
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#include "minmax.h"
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#include "same-inode.h"
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#include <stdlib.h>
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#include <stddef.h>
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#include <limits.h>
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#include <string.h>
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#include <ctype.h>
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enum { EXIT_TROUBLE = 2 };
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enum { NCHAR = UCHAR_MAX + 1 };
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#include <gettext.h>
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#define N_(String) gettext_noop(String)
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#define _(String) gettext(String)
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#include <locale.h>
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#ifndef initialize_main
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# define initialize_main(argcp, argvp)
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#endif
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#include "unlocked-io.h"
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_GL_INLINE_HEADER_BEGIN
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#ifndef SYSTEM_INLINE
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# define SYSTEM_INLINE _GL_INLINE
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#endif
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#define STREQ(a, b) (strcmp (a, b) == 0)
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/* Convert a possibly-signed character to an unsigned character. This is
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a bit safer than casting to unsigned char, since it catches some type
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errors that the cast doesn't. */
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SYSTEM_INLINE unsigned char
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to_uchar (char ch)
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{
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return ch;
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}
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_GL_INLINE_HEADER_END
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#ifndef __has_feature
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# define __has_feature(F) false
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#endif
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#if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
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# define HAVE_ASAN 1
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#else
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# define HAVE_ASAN 0
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#endif
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#if HAVE_ASAN
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/* Mark memory region [addr, addr+size) as unaddressable.
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This memory must be previously allocated by the user program. Accessing
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addresses in this region from instrumented code is forbidden until
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this region is unpoisoned. This function is not guaranteed to poison
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the whole region - it may poison only a subregion of [addr, addr+size)
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due to ASan alignment restrictions.
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Method is NOT thread-safe in the sense that no two threads can
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(un)poison memory in the same memory region simultaneously. */
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void __asan_poison_memory_region (void const volatile *addr, size_t size);
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/* Mark memory region [addr, addr+size) as addressable.
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This memory must be previously allocated by the user program. Accessing
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addresses in this region is allowed until this region is poisoned again.
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This function may unpoison a superregion of [addr, addr+size) due to
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ASan alignment restrictions.
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Method is NOT thread-safe in the sense that no two threads can
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(un)poison memory in the same memory region simultaneously. */
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void __asan_unpoison_memory_region (void const volatile *addr, size_t size);
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#else
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_GL_UNUSED static void
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__asan_poison_memory_region (void const volatile *addr, size_t size) { }
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_GL_UNUSED static void
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__asan_unpoison_memory_region (void const volatile *addr, size_t size) { }
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#endif
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#ifndef FALLTHROUGH
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# if __GNUC__ < 7
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# define FALLTHROUGH ((void) 0)
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# else
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# define FALLTHROUGH __attribute__ ((__fallthrough__))
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# endif
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#endif
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/* When we deliberately use duplicate branches, use this macro to
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disable gcc's -Wduplicated-branches in the containing expression. */
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#if 7 <= __GNUC__
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# define IGNORE_DUPLICATE_BRANCH_WARNING(exp) \
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({ \
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_Pragma ("GCC diagnostic push") \
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_Pragma ("GCC diagnostic ignored \"-Wduplicated-branches\"") \
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exp; \
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_Pragma ("GCC diagnostic pop") \
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})
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#else
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# define IGNORE_DUPLICATE_BRANCH_WARNING(exp) exp
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#endif
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#endif
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