mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-07 20:20:05 +00:00
65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
|
/* Copyright (C) 2013 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
|
||
|
<http://www.gnu.org/licenses/>.
|
||
|
|
||
|
Versioned copy of sysdeps/generic/longjmp.c modified for extended
|
||
|
jmpbuf. */
|
||
|
|
||
|
#include <shlib-compat.h>
|
||
|
#include <stddef.h>
|
||
|
#include <setjmp.h>
|
||
|
#include <signal.h>
|
||
|
|
||
|
extern void __v2__longjmp (__jmp_buf __env, int __val)
|
||
|
__attribute__ ((__noreturn__));
|
||
|
extern void __v2__libc_longjmp (sigjmp_buf env, int val)
|
||
|
__attribute__ ((__noreturn__));
|
||
|
libc_hidden_proto (__v2__libc_longjmp)
|
||
|
|
||
|
/* Set the signal mask to the one specified in ENV, and jump
|
||
|
to the position specified in ENV, causing the setjmp
|
||
|
call there to return VAL, or 1 if VAL is 0. */
|
||
|
void
|
||
|
__v2__libc_siglongjmp (sigjmp_buf env, int val)
|
||
|
{
|
||
|
/* Perform any cleanups needed by the frames being unwound. */
|
||
|
_longjmp_unwind (env, val);
|
||
|
|
||
|
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. */
|
||
|
__v2__longjmp (env[0].__jmpbuf, val ?: 1);
|
||
|
}
|
||
|
|
||
|
#ifndef __v2__longjmp
|
||
|
strong_alias (__v2__libc_siglongjmp, __v2__libc_longjmp)
|
||
|
libc_hidden_def (__v2__libc_longjmp)
|
||
|
weak_alias (__v2__libc_siglongjmp, __v2_longjmp)
|
||
|
weak_alias (__v2__libc_siglongjmp, __v2longjmp)
|
||
|
weak_alias (__v2__libc_siglongjmp, __v2siglongjmp)
|
||
|
|
||
|
/* These will be used by libpthread only. */
|
||
|
versioned_symbol (libc, __v2__libc_longjmp, __libc_longjmp, GLIBC_PRIVATE);
|
||
|
versioned_symbol (libc, __v2__libc_siglongjmp, __libc_siglongjmp, GLIBC_PRIVATE);
|
||
|
|
||
|
versioned_symbol (libc, __v2_longjmp, _longjmp, GLIBC_2_19);
|
||
|
versioned_symbol (libc, __v2longjmp, longjmp, GLIBC_2_19);
|
||
|
versioned_symbol (libc, __v2siglongjmp, siglongjmp, GLIBC_2_19);
|
||
|
#endif /* ifndef __v2__longjmp */
|