diff --git a/BUILD.gn b/BUILD.gn
index b0510139ec9521086395c653caf12b1e3a8e3f35..40e691379fdb548eb9a6292775b15262bfa1c51d 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -13,41 +13,29 @@
 # See the Mulan PSL v2 for more details.
 #
 group("maple") {
-  deps = [
-    "${MAPLEALL_ROOT}:maple",
-  ]
+  deps = [ "${MAPLEALL_ROOT}:maple" ]
 }
 
 group("irbuild") {
-  deps = [
-    "${MAPLEALL_ROOT}:irbuild",
-  ]
+  deps = [ "${MAPLEALL_ROOT}:irbuild" ]
 }
 
 group("hir2mpl") {
-  deps = [
-    "${HIR2MPL_ROOT}:hir2mpl",
-  ]
+  deps = [ "${HIR2MPL_ROOT}:hir2mpl" ]
 }
 
 group("hir2mplUT") {
-  deps = [
-    "${HIR2MPL_ROOT}/test:hir2mplUT",
-  ]
+  deps = [ "${HIR2MPL_ROOT}/test:hir2mplUT" ]
 }
 
 group("maple-rt") {
-  deps = [
-    "${MAPLE_MRT_ROOT}:maple-rt",
-  ]
+  deps = [ "${MAPLE_MRT_ROOT}:maple-rt" ]
 }
 
 group("ast2mpl") {
   deps = []
   if (IS_AST2MPL_EXISTS == "1") {
-    deps = [
-      "${AST2MPL_ROOT}/src:ast2mpl",
-    ]
+    deps = [ "${AST2MPL_ROOT}/src:ast2mpl" ]
   }
 }
 
@@ -58,13 +46,23 @@ group("mapleallUT") {
 }
 
 group("maplegendef") {
-  exec_script("${MAPLEALL_ROOT}/maple_be/mdgen/gendef.py",
-              [
-                rebase_path("${GN_BINARY_OUTPUT_DIRECTORY}/maplegen",
-                            root_build_dir),
-                rebase_path("${MAPLEALL_ROOT}/maple_be/include/ad/cortex_a55",
-                            root_build_dir),
-                rebase_path("${MAPLE_BUILD_OUTPUT}/common/target",
-                            root_build_dir),
-              ])
+  exeTool = "-e" + rebase_path("${GN_BINARY_OUTPUT_DIRECTORY}/maplegen", root_build_dir)
+  mdDir = "-m" + rebase_path("${MAPLEALL_ROOT}/maple_be/include/ad/cortex_a55", root_build_dir)
+  outDir = "-o" + rebase_path("${MAPLE_BUILD_OUTPUT}/common/target", root_build_dir)
+  if (ASAN == 1) {
+    exec_script("${MAPLEALL_ROOT}/maple_be/mdgen/gendef.py",
+                [
+                  "-aLD_PRELOAD=${LLVMLIBDIR}/libclang_rt.asan-x86_64.so",
+                  exeTool,
+                  mdDir,
+                  outDir,
+                ])
+ } else {
+   exec_script("${MAPLEALL_ROOT}/maple_be/mdgen/gendef.py",
+               [
+                 exeTool,
+                 mdDir,
+                 outDir
+               ])
+ }
 }
diff --git a/Makefile b/Makefile
index 1ed845bf517109347e989314a3f10e24d654ae87..9f4db91c476ff7f37133a41af8e7179986fb354f 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ RELEASE_VERSION := $(MAPLE_RELEASE_VERSION)
 BUILD_VERSION := $(MAPLE_BUILD_VERSION)
 GIT_REVISION := $(shell  git log --pretty=format:"%H" -1)
 MAST := 0
-
+ASAN := 0
 ifeq ($(DEBUG),0)
   BUILD_TYPE := RELEASE
 else
@@ -55,7 +55,8 @@ GN_OPTIONS := \
   RELEASE_VERSION="$(RELEASE_VERSION)" \
   BUILD_VERSION="$(BUILD_VERSION)" \
   GIT_REVISION="$(GIT_REVISION)" \
-  MAST=$(MAST)
+  MAST=$(MAST) \
+  ASAN=$(ASAN)
 
 .PHONY: default
 default: install
diff --git a/build/config/BUILDCONFIG.gn b/build/config/BUILDCONFIG.gn
index 81fc233d64b05293fc648a8cf990823947250c91..5f0817677a4d816c4b5fb220cfbbf7077d70e5dc 100755
--- a/build/config/BUILDCONFIG.gn
+++ b/build/config/BUILDCONFIG.gn
@@ -31,6 +31,7 @@ declare_args() {
   BUILD_VERSION = ""
   GIT_REVISION = ""
   MAST = 0
+  ASAN = 0
 }
 
 # Define global args
diff --git a/src/mapleall/maple_be/mdgen/gendef.py b/src/mapleall/maple_be/mdgen/gendef.py
index a49862a0b8de538f732651ca65edf3d8c8c8d7fb..eff14945801c4b968c2e20685643bb3d759410af 100755
--- a/src/mapleall/maple_be/mdgen/gendef.py
+++ b/src/mapleall/maple_be/mdgen/gendef.py
@@ -89,3 +89,4 @@ def main():
 
 if __name__ == "__main__":
   main()
+