diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/nptl/unwind_longjmp.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/nptl/unwind_longjmp.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/nptl/unwind_longjmp.c b/sysdeps/unix/sysv/linux/ia64/nptl/unwind_longjmp.c new file mode 100644 index 0000000000..0b55598e85 --- /dev/null +++ b/sysdeps/unix/sysv/linux/ia64/nptl/unwind_longjmp.c @@ -0,0 +1,43 @@ +/* Copyright (C) 1991-2014 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/>. */ + +#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) |