init: add disable two step switch

Signed-off-by: Nsun_fan <sun_fan1@hoperun.com>

services/BUILD.gn

@@ -133,6 +133,11 @@ if (defined(ohos_lite)) {
         "//third_party/toybox:toybox",
       ]
     }
+
+    if (disable_init_two_stages) {
+      defines = [ "DISABLE_INIT_TWO_STAGES" ]
+    }
+
     install_images = [
       "system",
       "updater",
@@ -162,7 +167,12 @@ if (defined(ohos_lite)) {
 
   # init etc files group
   ohos_prebuilt_etc("init.cfg") {
-    source = "//base/startup/init_lite/services/etc/init.cfg"
+    if (disable_init_two_stages) {
+      source =
+          "//base/startup/init_lite/services/etc/init.without_two_stages.cfg"
+    } else {
+      source = "//base/startup/init_lite/services/etc/init.cfg"
+    }
     part_name = "init"
   }
 

services/init/include/init_jobs.h

@@ -36,7 +36,11 @@ void DoJob(const char *jobName);
 void ReleaseAllJobs(void);
 void DumpAllJobs(void);
 
+#ifndef DISABLE_INIT_TWO_STAGES
 #define INIT_CONFIGURATION_FILE "/etc/init.cfg"
+#else
+#define INIT_CONFIGURATION_FILE "/etc/init.without_two_stages.cfg"
+#endif
 #define OTHER_CFG_PATH "/system/etc/init"
 #define MAX_PATH_ARGS_CNT 20
 

services/init/standard/init.c

@@ -46,6 +46,7 @@ void LogInit(void)
     }
 }
 
+#ifndef DISABLE_INIT_TWO_STAGES
 static pid_t StartUeventd(void)
 {
     char *const argv[] = {
@@ -98,6 +99,7 @@ static void StartInitSecondStage(void)
         exit(-1);
     }
 }
+#endif
 
 void SystemPrepare(void)
 {
@@ -105,12 +107,17 @@ void SystemPrepare(void)
     // Make sure init log always output to /dev/kmsg.
     EnableDevKmsg();
     CreateDeviceNode();
+#ifndef DISABLE_INIT_TWO_STAGES
     // Only ohos normal system support
     // two stages of init.
     // If we are in updater mode, only one stage of init,
+    INIT_LOGI("DISABLE_INIT_TWO_STAGES not defined");
     if (InUpdaterMode() == 0) {
         StartInitSecondStage();
     }
+#else
+    INIT_LOGI("DISABLE_INIT_TWO_STAGES defined");
+#endif
 }
 
 void SystemConfig(void)