1 files changed, 25 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/signal.h b/arch/arm64/include/asm/signal.h
new file mode 100644
index 000000000000..ef449f5f4ba8
--- /dev/null
+++ b/arch/arm64/include/asm/signal.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ARM64_ASM_SIGNAL_H
+#define __ARM64_ASM_SIGNAL_H
+
+#include <asm/memory.h>
+#include <uapi/asm/signal.h>
+#include <uapi/asm/siginfo.h>
+
+static inline void __user *arch_untagged_si_addr(void __user *addr,
+						 unsigned long sig,
+						 unsigned long si_code)
+{
+	/*
+	 * For historical reasons, all bits of the fault address are exposed as
+	 * address bits for watchpoint exceptions. New architectures should
+	 * handle the tag bits consistently.
+	 */
+	if (sig == SIGTRAP && si_code == TRAP_BRKPT)
+		return addr;
+
+	return untagged_addr(addr);
+}
+#define arch_untagged_si_addr arch_untagged_si_addr
+
+#endif