1 files changed, 28 insertions, 0 deletions
diff --git a/REORG.TODO/mach/spin-solid.c b/REORG.TODO/mach/spin-solid.c
new file mode 100644
index 0000000000..711fab8ada
--- /dev/null
+++ b/REORG.TODO/mach/spin-solid.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 1994-2017 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 <spin-lock.h>
+#include <mach/mach_traps.h>
+
+void
+__spin_lock_solid (spin_lock_t *lock)
+{
+  while (__spin_lock_locked (lock) || ! __spin_try_lock (lock))
+    /* Yield to another thread (system call).  */
+    __swtch_pri (0);
+}
+weak_alias (__spin_lock_solid, spin_lock_solid);