1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/mach/htl/pt-thread-start.c b/sysdeps/mach/htl/pt-thread-start.c
new file mode 100644
index 0000000000..571c1f2a62
--- /dev/null
+++ b/sysdeps/mach/htl/pt-thread-start.c
@@ -0,0 +1,53 @@
+/* Start thread.  Mach version.
+   Copyright (C) 2000-2018 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 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, see <http://www.gnu.org/licenses/>.  */
+
+#include <assert.h>
+#include <errno.h>
+#include <mach.h>
+
+#include <pt-internal.h>
+
+/* Start THREAD.  Get the kernel thread scheduled and running.  */
+int
+__pthread_thread_start (struct __pthread *thread)
+{
+  static int do_start;
+  error_t err;
+
+  if (!do_start)
+    {
+      /* The main thread is already running: do nothing.  */
+      assert (__pthread_total == 1);
+      assert ((
+		{
+		  mach_port_t ktid = __mach_thread_self ();
+		  int ok = thread->kernel_thread == ktid;
+		  __mach_port_deallocate (__mach_task_self (),
+					  thread->kernel_thread);
+		  ok;
+		}));
+      do_start = 1;
+    }
+  else
+    {
+      err = __thread_resume (thread->kernel_thread);
+      assert_perror (err);
+    }
+
+  return 0;
+}