1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/s390/s390-64/__longjmp.c b/sysdeps/s390/s390-64/__longjmp.c
new file mode 100644
index 0000000000..d194024dde
--- /dev/null
+++ b/sysdeps/s390/s390-64/__longjmp.c
@@ -0,0 +1,46 @@
+/* Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
+
+   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 <errno.h>
+#include <sysdep.h>
+#include <setjmp.h>
+#include <bits/setjmp.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+/* Jump to the position specified by ENV, causing the
+   setjmp call there to return VAL, or 1 if VAL is 0.  */
+void
+__longjmp (__jmp_buf env, int val)
+{
+   /* Restore registers and jump back.  */
+   asm volatile ("lgr  %%r2,%0\n\t"        /* Put val in grp 2.  */
+		 "ld   %%f7,104(%1)\n\t"
+		 "ld   %%f5,96(%1)\n\t"
+		 "ld   %%f3,88(%1)\n\t"
+		 "ld   %%f1,80(%1)\n\t"
+                 "lmg  %%r6,%%r15,0(%1)\n\t"
+                 "br   %%r14"
+                 : : "r" (val == 0 ? 1 : val),
+                 "a" (env) : "2" );
+
+  /* Avoid `volatile function does return' warnings.  */
+  for (;;);
+}
+