Blame debug/warning-nop.c

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/* Dummy nop functions to elicit link-time warnings.
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   Copyright (C) 2005-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   In addition to the permissions in the GNU Lesser General Public
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   License, the Free Software Foundation gives you unlimited
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   permission to link the compiled version of this file with other
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   programs, and to distribute those programs without any restriction
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   coming from the use of this file. (The GNU Lesser General Public
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   License restrictions do apply in other respects; for example, they
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   cover modification of the file, and distribution when not linked
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   into another program.)
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   Note that people who make modified versions of this file are not
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   obligated to grant this special exception for their modified
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   versions; it is their choice whether to do so. The GNU Lesser
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   General Public License gives permission to release a modified
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   version without this exception; this exception also makes it
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   possible to release a modified version which carries forward this
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   exception.
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   The GNU C Library 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 GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, see
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   <http://www.gnu.org/licenses/>.  */
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#include <sys/cdefs.h>
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static void
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__attribute__ ((used))
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nop (void)
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{
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}
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/* Don't insert any other #include's before this #undef!  */
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#undef __warndecl
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#define __warndecl(name, msg) \
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  extern void name (void) __attribute__ ((alias ("nop"))) attribute_hidden; \
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  link_warning (name, msg)
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#undef	__USE_FORTIFY_LEVEL
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#define __USE_FORTIFY_LEVEL 99
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/* Following here we need an #include for each public header file
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   that uses __warndecl.  */
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/* Define away to avoid warnings with compilers that do not have these
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   builtins.  */
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#define __builtin___memcpy_chk(dest, src, len, bos) NULL
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#define __builtin___memmove_chk(dest, src, len, bos) NULL
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#define __builtin___mempcpy_chk(dest, src, len, bos) NULL
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#define __builtin___memset_chk(dest, ch, len, bos) NULL
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#define __builtin___stpcpy_chk(dest, src, bos) NULL
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#define __builtin___strcat_chk(dest, src, bos) NULL
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#define __builtin___strcpy_chk(dest, src, bos) NULL
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#define __builtin___strncat_chk(dest, src, len, bos) NULL
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#define __builtin___strncpy_chk(dest, src, len, bos) NULL
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#define __builtin_object_size(bos, level) 0
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#include <string.h>