bf293afeca
2003-01-02 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/arm/sigaction.c (__sigaction, sigaction): Protect weak_alias and libc_hidden_weak with #ifndef LIBC_SIGACTION. * sysdeps/unix/sysv/linux/ia64/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/mips/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/x86_64/sigaction.c (__sigaction, sigaction): Likewise. * sysdeps/unix/sysv/linux/i386/sigaction.c (__sigaction, sigaction): Likewise. Remove SIGCANCEL handling here. * sysdeps/unix/sysv/linux/sigaction.c (__sigaction, sigaction): Likewise.
73 lines
2.3 KiB
C
73 lines
2.3 KiB
C
/* Linuxthreads - a simple clone()-based implementation of Posix */
|
|
/* threads for Linux. */
|
|
/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */
|
|
/* */
|
|
/* This program is free software; you can redistribute it and/or */
|
|
/* modify it under the terms of the GNU Library General Public License */
|
|
/* as published by the Free Software Foundation; either version 2 */
|
|
/* of the License, or (at your option) any later version. */
|
|
/* */
|
|
/* This program 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 Library General Public License for more details. */
|
|
|
|
/* Redefine siglongjmp and longjmp so that they interact correctly
|
|
with cleanup handlers */
|
|
|
|
#include <setjmp.h>
|
|
#include "pthread.h"
|
|
#include "internals.h"
|
|
|
|
/* These functions are not declared anywhere since they shouldn't be
|
|
used at another place but here. */
|
|
extern void __libc_siglongjmp (sigjmp_buf env, int val)
|
|
__attribute__ ((noreturn));
|
|
extern void __libc_longjmp (sigjmp_buf env, int val)
|
|
__attribute__ ((noreturn));
|
|
|
|
|
|
void __pthread_cleanup_upto (__jmp_buf target, char *targetframe)
|
|
{
|
|
pthread_descr self = thread_self();
|
|
struct _pthread_cleanup_buffer * c;
|
|
|
|
for (c = THREAD_GETMEM(self, p_cleanup);
|
|
c != NULL && _JMPBUF_UNWINDS(target, c);
|
|
c = c->__prev)
|
|
{
|
|
#if _STACK_GROWS_DOWN
|
|
if ((char *) c <= targetframe)
|
|
{
|
|
c = NULL;
|
|
break;
|
|
}
|
|
#elif _STACK_GROWS_UP
|
|
if ((char *) c >= targetframe)
|
|
{
|
|
c = NULL;
|
|
break;
|
|
}
|
|
#else
|
|
# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
|
|
#endif
|
|
c->__routine(c->__arg);
|
|
}
|
|
THREAD_SETMEM(self, p_cleanup, c);
|
|
if (THREAD_GETMEM(self, p_in_sighandler)
|
|
&& _JMPBUF_UNWINDS(target, THREAD_GETMEM(self, p_in_sighandler)))
|
|
THREAD_SETMEM(self, p_in_sighandler, NULL);
|
|
}
|
|
|
|
#ifdef SHARED
|
|
void siglongjmp (sigjmp_buf env, int val)
|
|
{
|
|
__libc_siglongjmp (env, val);
|
|
}
|
|
|
|
void longjmp (jmp_buf env, int val)
|
|
{
|
|
__libc_longjmp (env, val);
|
|
}
|
|
#endif
|