1 /* Linux definitions of functions used by static libc main startup. 2 Copyright (C) 2017-2022 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