1/* Linux definitions of functions used by static libc main startup.
2 Copyright (C) 2017-2023 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 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.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifdef SHARED
20# include_next <startup.h>
21#else
22# include <sysdep.h>
23
24/* Avoid a run-time invocation of strlen. */
25#define _startup_fatal(message) \
26 do \
27 { \
28 size_t __message_length = __builtin_strlen (message); \
29 if (! __builtin_constant_p (__message_length)) \
30 { \
31 extern void _startup_fatal_not_constant (void); \
32 _startup_fatal_not_constant (); \
33 } \
34 INTERNAL_SYSCALL_CALL (write, STDERR_FILENO, (message), \
35 __message_length); \
36 INTERNAL_SYSCALL_CALL (exit_group, 127); \
37 } \
38 while (0)
39#endif /* !SHARED */
40