mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Copyright (C) 2002, 2003, 2005 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, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <setjmp.h>
|
|
#include <stdlib.h>
|
|
#include "pthreadP.h"
|
|
#include <jmpbuf-unwind.h>
|
|
|
|
void
|
|
__pthread_cleanup_upto (__jmp_buf target, char *targetframe)
|
|
{
|
|
struct pthread *self = THREAD_SELF;
|
|
struct _pthread_cleanup_buffer *cbuf;
|
|
|
|
/* Adjust all pointers used in comparisons, so that top of thread's
|
|
stack is at the top of address space. Without that, things break
|
|
if stack is allocated above the main stack. */
|
|
uintptr_t adj = (uintptr_t) self->stackblock + self->stackblock_size;
|
|
uintptr_t targetframe_adj = (uintptr_t) targetframe - adj;
|
|
|
|
for (cbuf = THREAD_GETMEM (self, cleanup);
|
|
cbuf != NULL && _JMPBUF_UNWINDS_ADJ (target, cbuf, adj);
|
|
cbuf = cbuf->__prev)
|
|
{
|
|
#if _STACK_GROWS_DOWN
|
|
if ((uintptr_t) cbuf - adj <= targetframe_adj)
|
|
{
|
|
cbuf = NULL;
|
|
break;
|
|
}
|
|
#elif _STACK_GROWS_UP
|
|
if ((uintptr_t) cbuf - adj >= targetframe_adj)
|
|
{
|
|
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);
|
|
}
|
|
hidden_def (__pthread_cleanup_upto)
|