diff options
Diffstat (limited to 'nptl/pt-longjmp.c')
| -rw-r--r-- | nptl/pt-longjmp.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/nptl/pt-longjmp.c b/nptl/pt-longjmp.c new file mode 100644 index 0000000000..f333b8dfb0 --- /dev/null +++ b/nptl/pt-longjmp.c @@ -0,0 +1,65 @@ +/* Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + 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 <setjmp.h> +#include <stdlib.h> +#include "pthreadP.h" + + +void +__pthread_cleanup_upto (__jmp_buf target, char *targetframe) +{ + struct pthread *self = THREAD_SELF; + struct _pthread_cleanup_buffer *cbuf; + + for (cbuf = THREAD_GETMEM (self, cleanup); + cbuf != NULL && _JMPBUF_UNWINDS (target, cbuf); + cbuf = cbuf->__prev) + { +#if _STACK_GROWS_DOWN + if ((char *) cbuf <= targetframe) + { + cbuf = NULL; + break; + } +#elif _STACK_GROWS_UP + if ((char *) cbuf >= targetframe) + { + cbuf = NULL; + break; + } +#else +# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP" +#endif + + /* Call the cleanup code. */ + cbuf->__routine (cbuf->__arg); + } + + THREAD_SETMEM (self, cleanup, cbuf); +} + + + +void +longjmp (jmp_buf env, int val) +{ + __libc_longjmp (env, val); +} +weak_alias (longjmp, siglongjmp) |