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-rw-r--r--linuxthreads/ptlongjmp.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/linuxthreads/ptlongjmp.c b/linuxthreads/ptlongjmp.c
new file mode 100644
index 0000000000..1397dba43a
--- /dev/null
+++ b/linuxthreads/ptlongjmp.c
@@ -0,0 +1,44 @@
+/* Linuxthreads - a simple clone()-based implementation of Posix */
+/* threads for Linux. */
+/* Copyright (C) 1998 Xavier Leroy (Xavier.Leroy@inria.fr) */
+/* */
+/* This program is free software; you can redistribute it and/or */
+/* modify it under the terms of the GNU Library General Public License */
+/* as published by the Free Software Foundation; either version 2 */
+/* of the License, or (at your option) any later version. */
+/* */
+/* This program 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 Library General Public License for more details. */
+
+/* Redefine siglongjmp and longjmp so that they interact correctly
+ with cleanup handlers */
+
+#include <setjmp.h>
+#include "pthread.h"
+#include "internals.h"
+
+static void pthread_cleanup_upto(__jmp_buf target)
+{
+ pthread_descr self = thread_self();
+ struct _pthread_cleanup_buffer * c;
+
+ for (c = self->p_cleanup;
+ c != NULL && _JMPBUF_UNWINDS(target, c);
+ c = c->prev)
+ c->routine(c->arg);
+ self->p_cleanup = c;
+}
+
+void siglongjmp(sigjmp_buf env, int val)
+{
+ pthread_cleanup_upto(env->__jmpbuf);
+ __libc_siglongjmp(env, val);
+}
+
+void longjmp(jmp_buf env, int val)
+{
+ pthread_cleanup_upto(env->__jmpbuf);
+ __libc_longjmp(env, val);
+}