diff --git a/compiler_wrapper/aarch64_flags.go b/compiler_wrapper/aarch64_flags.go
new file mode 100644
index 0000000..a0d0552
--- /dev/null
+++ b/compiler_wrapper/aarch64_flags.go
@@ -0,0 +1,11 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package main
+
+func processAarch64Flags(builder *commandBuilder) {
+	if builder.target.arch == "aarch64" {
+		builder.addPreUserArgs("-mharden-sls=all")
+	}
+}
diff --git a/compiler_wrapper/aarch64_flags_test.go b/compiler_wrapper/aarch64_flags_test.go
new file mode 100644
index 0000000..0cb692e
--- /dev/null
+++ b/compiler_wrapper/aarch64_flags_test.go
@@ -0,0 +1,19 @@
+// Copyright 2020 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package main
+
+import (
+	"testing"
+)
+
+func TestAddSlsFlagOnAarch64(t *testing.T) {
+	withTestContext(t, func(ctx *testContext) {
+		cmd := ctx.must(callCompiler(ctx, ctx.cfg,
+			ctx.newCommand(clangAarch64, mainCc)))
+		if err := verifyArgOrder(cmd, "-mharden-sls=all", mainCc); err != nil {
+			t.Error(err)
+		}
+	})
+}
diff --git a/compiler_wrapper/compiler_wrapper.go b/compiler_wrapper/compiler_wrapper.go
index aa52dfd..49ee0eb 100644
--- a/compiler_wrapper/compiler_wrapper.go
+++ b/compiler_wrapper/compiler_wrapper.go
@@ -187,6 +187,7 @@
 	}
 	builder.addPostUserArgs(builder.cfg.clangPostFlags...)
 	calcCommonPreUserArgs(builder)
+	processAarch64Flags(builder)
 	return processClangFlags(builder)
 }
 
diff --git a/compiler_wrapper/testutil_test.go b/compiler_wrapper/testutil_test.go
index 21b7169..8e2377e 100644
--- a/compiler_wrapper/testutil_test.go
+++ b/compiler_wrapper/testutil_test.go
@@ -22,6 +22,7 @@
 	clangAndroid     = "./clang"
 	clangTidyAndroid = "./clang-tidy"
 	clangX86_64      = "./x86_64-cros-linux-gnu-clang"
+	clangAarch64     = "./aarch64-cros-linux-gnu-clang"
 	gccX86_64        = "./x86_64-cros-linux-gnu-gcc"
 	gccX86_64Eabi    = "./x86_64-cros-eabi-gcc"
 	gccArmV7         = "./armv7m-cros-linux-gnu-gcc"