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Diffstat (limited to 'libc/sysdeps/linux/xtensa/sigrestorer.S')
-rw-r--r--libc/sysdeps/linux/xtensa/sigrestorer.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/xtensa/sigrestorer.S b/libc/sysdeps/linux/xtensa/sigrestorer.S
new file mode 100644
index 000000000..474a89319
--- /dev/null
+++ b/libc/sysdeps/linux/xtensa/sigrestorer.S
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2008 Tensilica Inc.
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+
+#if __NR_rt_sigreturn > 255
+# error value of __NR_rt_sigreturn is too big!
+#endif
+
+ .text
+ .align 4
+ .global __default_sa_restorer
+ .type __default_sa_restorer, @function
+__default_sa_restorer:
+ movi a2, __NR_rt_sigreturn
+ syscall