diff --git a/dfx_utils/BUILD.gn b/dfx_utils/BUILD.gn
index 5ed35ceae89a27b7eac26564ce591088ec2e01db..9a03a9d5e97cb89035db8a168908e403eabb4928 100755
--- a/dfx_utils/BUILD.gn
+++ b/dfx_utils/BUILD.gn
@@ -45,12 +45,6 @@ ohos_shared_library("libdinput_dfx_utils") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [ "${utils_path}:libdinput_utils" ]
 
   external_deps = [
@@ -64,12 +58,7 @@ ohos_shared_library("libdinput_dfx_utils") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/inputdevicehandler/BUILD.gn b/inputdevicehandler/BUILD.gn
index 5c36f6a5c291ddba11d11f1da6005fbd6ea56181..18db9b3a2d54d8a4f8cec549e28168e057f904c8 100755
--- a/inputdevicehandler/BUILD.gn
+++ b/inputdevicehandler/BUILD.gn
@@ -45,12 +45,6 @@ ohos_shared_library("libdinput_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${services_state_path}:libdinput_sink_state",
     "${utils_path}:libdinput_utils",
@@ -72,12 +66,7 @@ ohos_shared_library("libdinput_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/interfaces/inner_kits/BUILD.gn b/interfaces/inner_kits/BUILD.gn
index bcbcb96146ffbbc488738ad87f5ede788e433964..6240ed4981bd0c02811be1741201c2db8d45ab19 100644
--- a/interfaces/inner_kits/BUILD.gn
+++ b/interfaces/inner_kits/BUILD.gn
@@ -95,12 +95,6 @@ ohos_shared_library("libdinput_sdk") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   external_deps = [
     "access_token:libaccesstoken_sdk",
     "access_token:libtokenid_sdk",
@@ -115,12 +109,7 @@ ohos_shared_library("libdinput_sdk") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/inputcollector/BUILD.gn b/services/sink/inputcollector/BUILD.gn
index 57cb89159092e389a0de4cb4d8c531a3a6f0b4ff..37115311d9203016206cba760f4e6228299dbfce 100755
--- a/services/sink/inputcollector/BUILD.gn
+++ b/services/sink/inputcollector/BUILD.gn
@@ -44,12 +44,6 @@ ohos_shared_library("libdinput_collector") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${services_state_path}:libdinput_sink_state",
     "${utils_path}:libdinput_utils",
@@ -71,12 +65,7 @@ ohos_shared_library("libdinput_collector") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/sinkmanager/BUILD.gn b/services/sink/sinkmanager/BUILD.gn
index 0c659407b4ba33b0f73d6c9a6e0bd8a177c1526d..806b1bdfc98e5b67ea82ffdb77b7333b9430aecc 100644
--- a/services/sink/sinkmanager/BUILD.gn
+++ b/services/sink/sinkmanager/BUILD.gn
@@ -55,12 +55,6 @@ ohos_shared_library("libdinput_sink") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/state:libdinput_sink_state",
@@ -94,12 +88,7 @@ ohos_shared_library("libdinput_sink") {
     "window_manager:libdm",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/transport/BUILD.gn b/services/sink/transport/BUILD.gn
index d82ddc2bc28aa3dc11fa774e787e390ce4f0bf5a..05d4afa7ab345b34dcb801723265bea31c9dac5e 100644
--- a/services/sink/transport/BUILD.gn
+++ b/services/sink/transport/BUILD.gn
@@ -46,12 +46,6 @@ ohos_shared_library("libdinput_sink_trans") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -76,12 +70,7 @@ ohos_shared_library("libdinput_sink_trans") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/inputinject/BUILD.gn b/services/source/inputinject/BUILD.gn
index 0c84f71d0bdcd6a83d7951a10b5dc3e7ad10296c..91829be7d54a6ac893f1ba6ba39fe5c0f84f9682 100644
--- a/services/source/inputinject/BUILD.gn
+++ b/services/source/inputinject/BUILD.gn
@@ -49,12 +49,6 @@ ohos_shared_library("libdinput_inject") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${services_state_path}:libdinput_sink_state",
@@ -78,12 +72,7 @@ ohos_shared_library("libdinput_inject") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/sourcemanager/BUILD.gn b/services/source/sourcemanager/BUILD.gn
index aa02846825ffc0a613edd4d3defea3cb90b6e540..11f8a32537335a0ff3028f7b3dfc8e17fdbeda02 100644
--- a/services/source/sourcemanager/BUILD.gn
+++ b/services/source/sourcemanager/BUILD.gn
@@ -92,12 +92,6 @@ ohos_shared_library("libdinput_source") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -129,12 +123,7 @@ ohos_shared_library("libdinput_source") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/transport/BUILD.gn b/services/source/transport/BUILD.gn
index f5431b6bf30e638237e5262ba100d8ba09cdc1bf..874649db056fe41972e9bebea69ee80b86db5e74 100755
--- a/services/source/transport/BUILD.gn
+++ b/services/source/transport/BUILD.gn
@@ -45,12 +45,6 @@ ohos_shared_library("libdinput_source_trans") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -74,12 +68,7 @@ ohos_shared_library("libdinput_source_trans") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/state/BUILD.gn b/services/state/BUILD.gn
index 20e77dfd9a7f2ef5a5015ecb68e492d5733f8ffc..8b01a01fa44fe1a58be841f3a36bacddb7429be6 100644
--- a/services/state/BUILD.gn
+++ b/services/state/BUILD.gn
@@ -49,12 +49,6 @@ ohos_shared_library("libdinput_sink_state") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${services_sink_path}/transport:libdinput_sink_trans",
@@ -76,12 +70,7 @@ ohos_shared_library("libdinput_sink_state") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/transportbase/BUILD.gn b/services/transportbase/BUILD.gn
index 622f14e736ffdda4bdf8824205a4e43b434c667b..439a74d5742ad8e18cad3547161467e361a6c84a 100644
--- a/services/transportbase/BUILD.gn
+++ b/services/transportbase/BUILD.gn
@@ -44,12 +44,6 @@ ohos_shared_library("libdinput_trans_base") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${utils_path}:libdinput_utils",
@@ -72,12 +66,7 @@ ohos_shared_library("libdinput_trans_base") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/sinkhandler/BUILD.gn b/sinkhandler/BUILD.gn
index b9a2c76946e8abfe8d815cb747becfb6ab6796de..a49104dee22a4d0a1ac63561596a3b9e8425d65b 100644
--- a/sinkhandler/BUILD.gn
+++ b/sinkhandler/BUILD.gn
@@ -50,12 +50,6 @@ ohos_shared_library("libdinput_sink_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${innerkits_path}:libdinput_sdk",
@@ -74,12 +68,7 @@ ohos_shared_library("libdinput_sink_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/sourcehandler/BUILD.gn b/sourcehandler/BUILD.gn
index 1ba3d8803ee9c891598e01c397c38c0666fbcb67..d054e1d67eff2db49a12b3b0779b31de92094c4e 100644
--- a/sourcehandler/BUILD.gn
+++ b/sourcehandler/BUILD.gn
@@ -52,12 +52,6 @@ ohos_shared_library("libdinput_source_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
-
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${innerkits_path}:libdinput_sdk",
@@ -77,12 +71,7 @@ ohos_shared_library("libdinput_source_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [
-    "-DHILOG_ENABLE",
-    "-fstack-protector-strong",
-    "-D_FORTIFY_SOURCE=2",
-    "-O2",
-  ]
+  cflags_cc = [ "-DHILOG_ENABLE" ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/utils/BUILD.gn b/utils/BUILD.gn
index af7c74669168056a68733ed8aed26c66a52258e0..085b405ae3ddb696a3f15e79041b4ff082bc8569 100644
--- a/utils/BUILD.gn
+++ b/utils/BUILD.gn
@@ -44,13 +44,6 @@ ohos_shared_library("libdinput_utils") {
     "LOG_DOMAIN=0xD004120",
   ]
 
-  cflags = [
-    "-O2",
-    "-D_FORTIFY_SOURCE=2",
-  ]
-
-  cflags_cc = cflags
-
   external_deps = [
     "c_utils:utils",
     "distributed_hardware_fwk:distributed_av_receiver",