diff --git a/adapter/appspawn_ace.cpp b/adapter/appspawn_ace.cpp
index 99777cea593b9248e1486b8b908de991dc3903a9..28c07992903437ba3984c8d87ee58b7e86f30cd7 100644
--- a/adapter/appspawn_ace.cpp
+++ b/adapter/appspawn_ace.cpp
@@ -21,6 +21,7 @@
 #include "runtime.h"
 
 #include "foundation/ability/ability_runtime/interfaces/kits/native/appkit/app/main_thread.h"
+#include "syspara/parameter.h"
 
 void LoadExtendLib(AppSpawnContent *content)
 {
@@ -74,6 +75,12 @@ void RunChildProcessor(AppSpawnContent *content, AppSpawnClient *client)
 {
     APPSPAWN_LOGI("AppExecFwk::MainThread::Start");
 #ifndef APPSPAWN_TEST
+    std::string checkExit;
+    if (GetIntParameter("persist.init.debug.checkexit", true)) {
+        checkExit = std::to_string(getpid());
+    }
+    setenv(APPSPAWN_CHECK_EXIT, checkExit.c_str(), true);
     OHOS::AppExecFwk::MainThread::Start();
+    unsetenv(APPSPAWN_CHECK_EXIT);
 #endif
 }
diff --git a/common/appspawn_server.c b/common/appspawn_server.c
index 3c55b191f8d57901af775210b782f2d4d004b2f1..1bd1d93f0ba54e7839060f995e4425be6a19138e 100644
--- a/common/appspawn_server.c
+++ b/common/appspawn_server.c
@@ -26,10 +26,6 @@
 #ifdef OHOS_DEBUG
 #include <time.h>
 #endif // OHOS_DEBUG
-#include <stdbool.h>
-
-#include "syspara/parameter.h"
-#include "securec.h"
 
 #define DEFAULT_UMASK 0002
 
@@ -40,7 +36,6 @@ void DisallowInternet(void);
 #endif
 
 #define SANDBOX_STACK_SIZE (1024 * 1024 * 8)
-#define APPSPAWN_CHECK_EXIT "AppSpawnCheckUnexpectedExitCall"
 
 static void SetInternetPermission(const AppSpawnClient *client)
 {
@@ -68,7 +63,7 @@ static void NotifyResToParent(struct AppSpawnContent_ *content, AppSpawnClient *
 
 static void ProcessExit(int code)
 {
-    APPSPAWN_LOGI("App exit: %{public}d", code);
+    APPSPAWN_LOGI("App exit code: %{public}d", code);
 #ifndef APPSPAWN_TEST
 #ifdef OHOS_LITE
     _exit(0x7f); // 0x7f user exit
@@ -85,7 +80,7 @@ void exit(int code)
 {
     char *checkExit = getenv(APPSPAWN_CHECK_EXIT);
     if (checkExit && atoi(checkExit) == getpid()) {
-        APPSPAWN_LOGF("Unexpected exit call: %{public}d", code);
+        APPSPAWN_LOGF("Unexpected call: exit(%{public}d)", code);
         abort();
     }
     // hook `exit` to `ProcessExit` to ensure app exit in a clean way
@@ -148,7 +143,7 @@ int DoStartApp(struct AppSpawnContent_ *content, AppSpawnClient *client, char *l
     return 0;
 }
 
-static int AppSpawnChildRun(void *arg)
+int AppSpawnChild(void *arg)
 {
     APPSPAWN_CHECK(arg != NULL, return -1, "Invalid arg for appspawn child");
     AppSandboxArg *sandbox = (AppSandboxArg *)arg;
@@ -204,18 +199,6 @@ static int AppSpawnChildRun(void *arg)
     return 0;
 }
 
-int AppSpawnChild(void *arg)
-{
-    char checkExit[16] = ""; // 16 is enough to store an int
-    if (GetIntParameter("persist.init.debug.checkexit", false)) {
-        (void)sprintf_s(checkExit, sizeof(checkExit), "%d", getpid());
-    }
-    setenv(APPSPAWN_CHECK_EXIT, checkExit, true);
-    int ret = AppSpawnChildRun(arg);
-    unsetenv(APPSPAWN_CHECK_EXIT);
-    return ret;
-}
-
 int AppSpawnProcessMsg(AppSandboxArg *sandbox, pid_t *childPid)
 {
     pid_t pid;
diff --git a/common/appspawn_server.h b/common/appspawn_server.h
index 2df60a5ae798637a986bde07ae44b9d977ba09ad..00e8242d9f6e70ecb90c0d0a6f5edfd4a4b33f64 100644
--- a/common/appspawn_server.h
+++ b/common/appspawn_server.h
@@ -37,6 +37,8 @@ extern "C" {
 #define GID_FILE_ACCESS 1006  // only used for ExternalFileManager.hap
 #define GID_USER_DATA_RW 1008
 
+#define APPSPAWN_CHECK_EXIT "AppSpawnCheckUnexpectedExitCall"
+
 typedef struct AppSpawnClient_ {
     uint32_t id;
     uint32_t flags;