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-rw-r--r--arch/nds32/kernel/vdso/sigreturn.S19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/nds32/kernel/vdso/sigreturn.S b/arch/nds32/kernel/vdso/sigreturn.S
new file mode 100644
index 0000000..67e4d1d
--- /dev/null
+++ b/arch/nds32/kernel/vdso/sigreturn.S
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2012 ARM Limited
+// Copyright (C) 2005-2017 Andes Technology Corporation
+
+#include <linux/linkage.h>
+#include <asm/unistd.h>
+
+ .text
+
+ENTRY(__kernel_rt_sigreturn)
+ .cfi_startproc
+ movi $r15, __NR_rt_sigreturn
+ /*
+ * The SWID of syscall should be __NR_rt_sigreturn to synchronize
+ * the unwinding scheme in gcc
+ */
+ syscall __NR_rt_sigreturn
+ .cfi_endproc
+ENDPROC(__kernel_rt_sigreturn)
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