Clean up __exit_thread.

3 files changed, 39 insertions, 23 deletions

diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 692487fc7b..02eda45067 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -141,7 +141,7 @@ endif
 ifeq ($(subdir),posix)
 sysdep_headers += bits/initspin.h
 
-sysdep_routines += exit-thread sched_getcpu
+sysdep_routines += sched_getcpu
 
 tests += tst-getcpu
 endif
diff --git a/sysdeps/unix/sysv/linux/exit-thread.S b/sysdeps/unix/sysv/linux/exit-thread.S
deleted file mode 100644
index 741cea4c58..0000000000
--- a/sysdeps/unix/sysv/linux/exit-thread.S
+++ /dev/null
@@ -1,22 +0,0 @@
-/* Copyright (C) 1991-2014 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 <sysdep.h>
-
-PSEUDO (__exit_thread, exit, 1)
-	/* Shouldn't get here.  */
-PSEUDO_END(__exit_thread)
diff --git a/sysdeps/unix/sysv/linux/exit-thread.h b/sysdeps/unix/sysv/linux/exit-thread.h
new file mode 100644
index 0000000000..52891dd22f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/exit-thread.h
@@ -0,0 +1,38 @@
+/* Call to terminate the current thread.  Linux version.
+   Copyright (C) 2014 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 <sysdep.h>
+
+/* This causes the current thread to exit, without affecting other
+   threads in the process if there are any.  If there are no other
+   threads left, then this has the effect of _exit (0).  */
+
+static inline void __attribute__ ((noreturn, always_inline, unused))
+__exit_thread (void)
+{
+  /* Doing this in a loop is mostly just to satisfy the compiler that the
+     function really qualifies as noreturn.  It also means that in some
+     pathological situation where the system call does not get made or does
+     not work, the thread will simply spin rather than running off the end
+     of the caller and doing unexpectedly strange things.  */
+  while (1)
+    {
+      INTERNAL_SYSCALL_DECL (err);
+      INTERNAL_SYSCALL (exit, err, 1, 0);
+    }
+}