glibc/debug/warning-nop.c

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/* Dummy nop functions to elicit link-time warnings.
Copyright (C) 2005 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sys/cdefs.h>
static void
nop (void)
{
}
/* Don't insert any other #include's before this #undef! */
#undef __warndecl
#define __warndecl(name, msg) \
extern void name (void) __attribute__ ((alias ("nop"))) attribute_hidden; \
link_warning (name, msg)
#undef __USE_FORTIFY_LEVEL
#define __USE_FORTIFY_LEVEL 99
/* Following here we need an #include for each public header file
that uses __warndecl. */
/* Define away to avoid warnings with compilers that do not have these
builtins. */
#define __builtin___memcpy_chk(dest, src, len, bos) NULL
#define __builtin___memmove_chk(dest, src, len, bos) NULL
#define __builtin___mempcpy_chk(dest, src, len, bos) NULL
#define __builtin___memset_chk(dest, ch, len, bos) NULL
#define __builtin___stpcpy_chk(dest, src, bos) NULL
#define __builtin___strcat_chk(dest, src, bos) NULL
#define __builtin___strcpy_chk(dest, src, bos) NULL
#define __builtin___strncat_chk(dest, src, len, bos) NULL
#define __builtin___strncpy_chk(dest, src, len, bos) NULL
#define __builtin_object_size(bos, level) 0
#include <string.h>