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-rw-r--r--libc/sysdeps/linux/arc/bsd-setjmp.S20
1 files changed, 20 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arc/bsd-setjmp.S b/libc/sysdeps/linux/arc/bsd-setjmp.S
new file mode 100644
index 000000000..46745958e
--- /dev/null
+++ b/libc/sysdeps/linux/arc/bsd-setjmp.S
@@ -0,0 +1,20 @@
+/* BSD `setjmp' entry point to `sigsetjmp (..., 1)'. ARC version.
+ *
+ * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+/* This just does a tail-call to `__sigsetjmp (ARG, 1)'.
+ We cannot do it in C because it must be a tail-call, so frame-unwinding
+ in setjmp doesn't clobber the state restored by longjmp. */
+
+#include <sysdep.h>
+
+;@ r0 = jump buffer into which regs will be saved
+
+ENTRY(setjmp)
+ b.d __sigsetjmp
+ mov r1, 1 ; save signals
+END(setjmp)
+libc_hidden_def(setjmp)