ueventd: easier debug logging

Move ueventd debug flag into the Android.mk.
Boost klog level if event logging enabled.

Change-Id: Iae48edbc43c487092c2424023576af29c76ff401

init/Android.mk

@@ -26,6 +26,9 @@ ifneq (,$(filter userdebug eng,$(TARGET_BUILD_VARIANT)))
 LOCAL_CFLAGS += -DALLOW_LOCAL_PROP_OVERRIDE=1
 endif
 
+# Enable ueventd logging
+#LOCAL_CFLAGS += -DLOG_UEVENTS=1
+
 LOCAL_MODULE:= init
 
 LOCAL_FORCE_STATIC_EXECUTABLE := true
@@ -42,6 +45,8 @@ LOCAL_STATIC_LIBRARIES := \
 	libmincrypt \
 	libext4_utils_static
 
+LOCAL_ADDITIONAL_DEPENDENCIES += $(LOCAL_PATH)/Android.mk
+
 include $(BUILD_EXECUTABLE)
 
 # Make a symlink from /sbin/ueventd and /sbin/watchdogd to /init

init/log.h

@@ -23,6 +23,4 @@
 #define NOTICE(x...)  KLOG_NOTICE("init", x)
 #define INFO(x...)    KLOG_INFO("init", x)
 
-#define LOG_UEVENTS        0  /* log uevent messages if 1. verbose */
-
 #endif

init/ueventd.c

@@ -69,6 +69,12 @@ int ueventd_main(int argc, char **argv)
 
     open_devnull_stdio();
     klog_init();
+#if LOG_UEVENTS
+    /* Ensure we're at a logging level that will show the events */
+    if (klog_get_level() < KLOG_LEVEL_INFO) {
+        klog_set_level(KLOG_LEVEL_INFO);
+    }
+#endif
 
     INFO("starting ueventd\n");