mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +00:00
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/* Copyright (C) 1991-2020 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/>. */
|
|
|
|
#include <stddef.h>
|
|
#include <setjmp.h>
|
|
#include <signal.h>
|
|
#include <pthreadP.h>
|
|
#include <jmpbuf-unwind.h>
|
|
|
|
extern void __sigstack_longjmp (__jmp_buf, int)
|
|
__attribute__ ((noreturn));
|
|
|
|
/* Like __libc_siglongjmp(), but safe for crossing from alternate
|
|
signal stack to normal stack. Needed by NPTL. */
|
|
void
|
|
__libc_unwind_longjmp (sigjmp_buf env, int val)
|
|
{
|
|
/* Perform any cleanups needed by the frames being unwound. */
|
|
__pthread_cleanup_upto (env->__jmpbuf, CURRENT_STACK_FRAME);
|
|
|
|
if (env[0].__mask_was_saved)
|
|
/* Restore the saved signal mask. */
|
|
(void) __sigprocmask (SIG_SETMASK, &env[0].__saved_mask,
|
|
(sigset_t *) NULL);
|
|
|
|
/* Call the machine-dependent function to restore machine state. */
|
|
__sigstack_longjmp (env[0].__jmpbuf, val ?: 1);
|
|
}
|
|
hidden_def (__libc_unwind_longjmp)
|