.
[glibc/history.git] / debug / warning-nop.c
blob8f2f66e16a76b1d757365dbf6ffbc192425eb4c6
1 /* Dummy nop functions to elicit link-time warnings.
2 Copyright (C) 2005 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <sys/cdefs.h>
22 static void
23 nop (void)
27 /* Don't insert any other #include's before this #undef! */
29 #undef __warndecl
30 #define __warndecl(name, msg) \
31 extern void name (void) __attribute__ ((alias ("nop"))) attribute_hidden; \
32 link_warning (name, msg)
34 #undef __USE_FORTIFY_LEVEL
35 #define __USE_FORTIFY_LEVEL 99
37 /* Following here we need an #include for each public header file
38 that uses __warndecl. */
40 /* Define away to avoid warnings with compilers that do not have these
41 builtins. */
42 #define __builtin___memcpy_chk(dest, src, len, bos) NULL
43 #define __builtin___memmove_chk(dest, src, len, bos) NULL
44 #define __builtin___mempcpy_chk(dest, src, len, bos) NULL
45 #define __builtin___memset_chk(dest, ch, len, bos) NULL
46 #define __builtin___stpcpy_chk(dest, src, bos) NULL
47 #define __builtin___strcat_chk(dest, src, bos) NULL
48 #define __builtin___strcpy_chk(dest, src, bos) NULL
49 #define __builtin___strncat_chk(dest, src, len, bos) NULL
50 #define __builtin___strncpy_chk(dest, src, len, bos) NULL
51 #define __builtin_object_size(bos, level) 0
53 #include <string.h>