1 files changed, 66 insertions, 0 deletions
diff --git a/sysdeps/mach/hurd/htl/pt-docancel.c b/sysdeps/mach/hurd/htl/pt-docancel.c
new file mode 100644
index 0000000000..6e9428ce57
--- /dev/null
+++ b/sysdeps/mach/hurd/htl/pt-docancel.c
@@ -0,0 +1,66 @@
+/* Cancel a thread.
+   Copyright (C) 2002-2018 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 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 <pthread.h>
+
+#include <pt-internal.h>
+#include <pthreadP.h>
+
+static void
+call_exit (void)
+{
+  __pthread_exit (0);
+}
+
+int
+__pthread_do_cancel (struct __pthread *p)
+{
+  mach_port_t ktid;
+  int me;
+
+  assert (p->cancel_pending == 1);
+  assert (p->cancel_state == PTHREAD_CANCEL_ENABLE);
+
+  __pthread_mutex_unlock (&p->cancel_lock);
+
+  ktid = __mach_thread_self ();
+  me = p->kernel_thread == ktid;
+  __mach_port_deallocate (__mach_task_self (), ktid);
+
+  if (me)
+    call_exit ();
+  else
+    {
+      error_t err;
+
+      err = __thread_suspend (p->kernel_thread);
+      assert_perror (err);
+
+      err = __thread_abort (p->kernel_thread);
+      assert_perror (err);
+
+      err = __thread_set_pcsptp (p->kernel_thread,
+				 1, (void *) call_exit, 0, 0, 0, 0);
+      assert_perror (err);
+
+      err = __thread_resume (p->kernel_thread);
+      assert_perror (err);
+    }
+
+  return 0;
+}