1/* Dummy nop functions to elicit link-time warnings.
2 Copyright (C) 2005-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
10 In addition to the permissions in the GNU Lesser General Public
11 License, the Free Software Foundation gives you unlimited
12 permission to link the compiled version of this file with other
13 programs, and to distribute those programs without any restriction
14 coming from the use of this file. (The GNU Lesser General Public
15 License restrictions do apply in other respects; for example, they
16 cover modification of the file, and distribution when not linked
17 into another program.)
18
19 Note that people who make modified versions of this file are not
20 obligated to grant this special exception for their modified
21 versions; it is their choice whether to do so. The GNU Lesser
22 General Public License gives permission to release a modified
23 version without this exception; this exception also makes it
24 possible to release a modified version which carries forward this
25 exception.
26
27 The GNU C Library is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
30 Lesser General Public License for more details.
31
32 You should have received a copy of the GNU Lesser General Public
33 License along with the GNU C Library; if not, see
34 <https://www.gnu.org/licenses/>. */
35
36#include <sys/cdefs.h>
37
38static void
39__attribute__ ((used))
40nop (void)
41{
42}
43
44/* Don't insert any other #include's before this #undef! */
45
46#undef __warndecl
47#define __warndecl(name, msg) \
48 extern void name (void) __attribute__ ((alias ("nop"))) attribute_hidden; \
49 link_warning (name, msg)
50
51#undef __USE_FORTIFY_LEVEL
52#define __USE_FORTIFY_LEVEL 99
53
54/* Following here we need an #include for each public header file
55 that uses __warndecl. */
56
57/* Define away to avoid warnings with compilers that do not have these
58 builtins. */
59#define __builtin___memcpy_chk(dest, src, len, bos) NULL
60#define __builtin___memmove_chk(dest, src, len, bos) NULL
61#define __builtin___mempcpy_chk(dest, src, len, bos) NULL
62#define __builtin___memset_chk(dest, ch, len, bos) NULL
63#define __builtin___stpcpy_chk(dest, src, bos) NULL
64#define __builtin___strcat_chk(dest, src, bos) NULL
65#define __builtin___strcpy_chk(dest, src, bos) NULL
66#define __builtin___strncat_chk(dest, src, len, bos) NULL
67#define __builtin___strncpy_chk(dest, src, len, bos) NULL
68#define __builtin_object_size(bos, level) 0
69
70#include <string.h>
71