diff --git a/lib/libc/BUILD.gn b/lib/libc/BUILD.gn
index b2978cba..8169ff36 100644
--- a/lib/libc/BUILD.gn
+++ b/lib/libc/BUILD.gn
@@ -61,6 +61,13 @@ kernel_module(module_name) {
       "$OPTRTDIR/string/arm/strcpy.c",
       "$OPTRTDIR/string/arm/strlen-armv6t2.S",
     ]
+    asmflags = [
+      "-D__strlen_armv6t2=strlen",
+      "-D__strcpy_arm=strcpy",
+      "-D__strcmp_arm=strcmp",
+      "-D__memcpy_arm=memcpy",
+      "-D__memchr_arm=memchr",
+    ]
     sources += [
       "src/arch/arm/memset.S",
       "src/arch/arm/memcmp.S",
diff --git a/lib/libc/Makefile b/lib/libc/Makefile
index 18908813..14432444 100644
--- a/lib/libc/Makefile
+++ b/lib/libc/Makefile
@@ -35,6 +35,14 @@ LOCAL_SRCS += \
 	$(OPTRTDIR)/string/arm/strcmp.S \
 	$(OPTRTDIR)/string/arm/strcpy.c \
 	$(OPTRTDIR)/string/arm/strlen-armv6t2.S
+
+LOCAL_CMACRO = \
+	-D__strlen_armv6t2=strlen \
+	-D__strcpy_arm=strcpy \
+	-D__strcmp_arm=strcmp \
+	-D__memcpy_arm=memcpy \
+	-D__memchr_arm=memchr
+
 # Replace the general srcs of the same name with specially optimized srcs
 LOCAL_SRCS += $(LOCAL_OPT_SRCS)
 LOCAL_SRCS := $(filter-out $(LOCAL_FILTER_SRCS),$(LOCAL_SRCS))
@@ -47,7 +55,7 @@ LOCAL_INCLUDE := \
 
 LOCAL_INCLUDE += $(addprefix -I$(MUSLPORTINGDIR)/, src/include src/internal)
 
-LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS)
+LOCAL_FLAGS := $(LOCAL_INCLUDE) $(LITEOS_GCOV_OPTS) $(LOCAL_CMACRO)
 ifeq ($(LOSCFG_COMPILER_CLANG_LLVM), y)
 LOCAL_FLAGS +=-Wno-char-subscripts -Wno-unknown-pragmas
 else