This is my initial working version.

There is a bug in boot in this version: subhurd sometimes cannot boot.

1 files changed, 31 insertions, 0 deletions

diff --git a/libpthread/pthread/pt-testcancel.c b/libpthread/pthread/pt-testcancel.c
new file mode 100644
index 00000000..01f1ac9c
--- /dev/null
+++ b/libpthread/pthread/pt-testcancel.c
@@ -0,0 +1,31 @@
+/* Add an explicit cancelation point.
+   Copyright (C) 2002 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <pthread.h>
+
+#include <pt-internal.h>
+
+void
+pthread_testcancel (void)
+{
+  struct __pthread *p = _pthread_self ();
+
+  if (p->cancel_state == PTHREAD_CANCEL_ENABLE && p->cancel_pending)
+    pthread_exit (PTHREAD_CANCELED);
+}