diff --git a/observer_agent/CMakeLists.txt b/observer_agent/CMakeLists.txt
index 9d752c3931f5b3d4ff935f871d0f32577af3511c..c809e7778b1d41e148180ae29cd492a9d5e345fb 100644
--- a/observer_agent/CMakeLists.txt
+++ b/observer_agent/CMakeLists.txt
@@ -8,6 +8,7 @@ add_custom_target(grpc_demo ALL
 	COMMAND make -C ${GRPC_PATH})
 
 add_executable(secDetectord grpc_comm/client.cpp grpc_comm/server.cpp service/main.cpp service/ringbuffer.cpp)
+add_dependencies(secDetectord ebpf)
 target_include_directories(secDetectord PUBLIC service grpc_comm)
 target_link_directories(secDetectord PUBLIC ${CMAKE_CURRENT_BINARY_DIR}/ebpf)
 
diff --git a/observer_agent/ebpf/CMakeLists.txt b/observer_agent/ebpf/CMakeLists.txt
index 4ac77130de66cbbb5821d840447506a0df925a0d..efec7f3200dad96f2cca78fa6a936d890c022097 100644
--- a/observer_agent/ebpf/CMakeLists.txt
+++ b/observer_agent/ebpf/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 cmake_minimum_required(VERSION 3.16)
 project(ebpf)
-add_custom_target(ebpf ALL
+add_custom_target(ebpf
 	COMMAND mkdir -p ${CMAKE_CURRENT_BINARY_DIR}/.output
 	COMMAND bpftool btf dump file /sys/kernel/btf/vmlinux format c > ${CMAKE_CURRENT_BINARY_DIR}/.output/vmlinux.h
 	COMMAND clang -g -O2 -target bpf -D__TARGET_ARCH_x86 -I${CMAKE_CURRENT_BINARY_DIR}/.output -c ${CMAKE_CURRENT_SOURCE_DIR}/fentry.bpf.c -o ${CMAKE_CURRENT_BINARY_DIR}/.output/fentry.bpf.o
@@ -11,4 +11,5 @@ add_custom_target(ebpf ALL
 )
 
 add_executable(test_fentry ${CMAKE_CURRENT_SOURCE_DIR}/test_fentry.c)
+add_dependencies(test_fentry ebpf)
 target_link_libraries(test_fentry ${CMAKE_CURRENT_BINARY_DIR}/.output/fentry.o z elf bpf)
diff --git a/observer_agent/ebpf/fentry.bpf.c b/observer_agent/ebpf/fentry.bpf.c
index 11742fd12819f8d96e7c3d5cdc6779bebbb1d313..a172931377b0ad636710bcdea3da5dbf6f7aac6a 100644
--- a/observer_agent/ebpf/fentry.bpf.c
+++ b/observer_agent/ebpf/fentry.bpf.c
@@ -92,14 +92,14 @@ int handle_exec(struct trace_event_raw_sched_process_exec *ctx)
 		return 0;
 
 	get_common_info(e);
-	strcpy(e->event_name, "sched_process_exec");
+	__builtin_memcpy(e->event_name, "sched_process_exec", sizeof("sched_process_exec"));
 
 	bpf_ringbuf_submit(e, 0);
 	return 0;
 }
 
 SEC("tp/sched/sched_process_exit")
-int handle_exit(struct trace_event_raw_sched_process_exit *ctx)
+int handle_exit(void)
 {
 	struct ebpf_event *e = NULL;
 	u32 exit_code = 0;
@@ -109,7 +109,7 @@ int handle_exit(struct trace_event_raw_sched_process_exit *ctx)
 		return 0;
 
 	get_common_info(e);
-	strcpy(e->event_name, "sched_process_exit");
+	__builtin_memcpy(e->event_name, "sched_process_exit", sizeof("sched_process_exit"));
 	exit_code = BPF_CORE_READ((struct task_struct *)bpf_get_current_task(), exit_code);
 	e->process_info.exit_code = (exit_code >> 8) & 0xff;
 	bpf_ringbuf_submit(e, 0);
@@ -126,7 +126,7 @@ int handle_fork(struct trace_event_raw_sched_process_fork *ctx)
 		return 0;
 
 	get_common_info(e);
-	strcpy(e->event_name, "sched_process_fork");
+	__builtin_memcpy(e->event_name, "sched_process_fork", sizeof("sched_process_fork"));
 	bpf_ringbuf_submit(e, 0);
 	return 0;
 }