1 /* Linuxthreads - a simple clone()-based implementation of Posix */
2 /* threads for Linux. */
3 /* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */
5 /* This program is free software; you can redistribute it and/or */
6 /* modify it under the terms of the GNU Library General Public License */
7 /* as published by the Free Software Foundation; either version 2 */
8 /* of the License, or (at your option) any later version. */
10 /* This program is distributed in the hope that it will be useful, */
11 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
12 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
13 /* GNU Library General Public License for more details. */
15 /* Redefine siglongjmp and longjmp so that they interact correctly
16 with cleanup handlers */
20 #include "internals.h"
22 #include <jmpbuf-unwind.h>
24 static inline uintptr_t
25 demangle_ptr (uintptr_t x)
33 void __pthread_cleanup_upto (__jmp_buf target, char *targetframe)
35 pthread_descr self = thread_self();
36 struct _pthread_cleanup_buffer * c;
38 for (c = THREAD_GETMEM(self, p_cleanup);
39 c != NULL && _JMPBUF_UNWINDS(target, c, demangle_ptr);
43 if ((char *) c <= targetframe)
49 if ((char *) c >= targetframe)
55 # error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
57 c->__routine(c->__arg);
59 THREAD_SETMEM(self, p_cleanup, c);
60 if (THREAD_GETMEM(self, p_in_sighandler)
61 && _JMPBUF_UNWINDS(target, THREAD_GETMEM(self, p_in_sighandler),
63 THREAD_SETMEM(self, p_in_sighandler, NULL);