diff --git a/musl_template.gni b/musl_template.gni
index 6d7d76e0697ab0fdf80318989ed3cbb34f310eb8..8a95b033351ceb1ed4b12c0df7dfcfc66138df3d 100755
--- a/musl_template.gni
+++ b/musl_template.gni
@@ -269,9 +269,15 @@ template("musl_libs") {
     ]
 
     if (musl_arch == "arm") {
-      sources_orig -= [ "src/thread/${musl_arch}/__set_thread_area.c" ]
+      sources_orig -= [
+        "src/thread/${musl_arch}/__set_thread_area.c",
+        "src/string/arm/memcpy_le.S",
+      ]
     } else if (musl_arch == "aarch64") {
-      sources_orig -= [ "src/thread/${musl_arch}/__set_thread_area.s" ]
+      sources_orig -= [
+        "src/thread/${musl_arch}/__set_thread_area.s",
+        "src/string/memcpy.c",
+      ]
     }
 
     if ("${target_abi}" == "a7_hard_neon-vfpv4") {
@@ -282,6 +288,14 @@ template("musl_libs") {
       sources += [ "${target_out_dir}/${musl_ported_dir}/${s}" ]
     }
 
+    if (musl_arch == "arm") {
+      sources += [ "//third_party/optimized-routines/string/arm/memcpy.S" ]
+      asmflags = [ "-D__memcpy_arm = memcpy" ]
+    } else if (musl_arch == "aarch64") {
+      sources += [ "//third_party/optimized-routines/string/aarch64/memcpy.S" ]
+      asmflags = [ "-D__memcpy_aarch64 = memcpy" ]
+    }
+
     cflags = [
       "-O3",
       "-fPIC",