/* Copyright (C) 1991,92,94,95,97,98,2000,02,04 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, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#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)