diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/startup.h')
| -rw-r--r-- | sysdeps/unix/sysv/linux/startup.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/startup.h b/sysdeps/unix/sysv/linux/startup.h new file mode 100644 index 0000000000..39859b404a --- /dev/null +++ b/sysdeps/unix/sysv/linux/startup.h @@ -0,0 +1,39 @@ +/* Linux definitions of functions used by static libc main startup. + Copyright (C) 2017-2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#ifdef SHARED +# include_next <startup.h> +#else +# include <sysdep.h> + +/* Avoid a run-time invocation of strlen. */ +#define _startup_fatal(message) \ + do \ + { \ + size_t __message_length = __builtin_strlen (message); \ + if (! __builtin_constant_p (__message_length)) \ + { \ + extern void _startup_fatal_not_constant (void); \ + _startup_fatal_not_constant (); \ + } \ + INTERNAL_SYSCALL_CALL (write, STDERR_FILENO, (message), \ + __message_length); \ + INTERNAL_SYSCALL_CALL (exit_group, 127); \ + } \ + while (0) +#endif /* !SHARED */ |