Android修改源码让APP获取root权限可以执行su命令的git diff记录

diff --git a/alps/system/core/adb/Android.mk b/alps/system/core/adb/Android.mk
index 21cd987..df99694 100755
--- a/alps/system/core/adb/Android.mk
+++ b/alps/system/core/adb/Android.mk
@@ -64,6 +64,12 @@ LIBADB_windows_SRC_FILES := \
     usb_windows.cpp \
 
 include $(CLEAR_VARS)
+
+#kang
+ifeq ($(TARGET_BUILD_VARIANT),userdebug)
+ LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif
+
 LOCAL_CLANG := true
 LOCAL_MODULE := libadbd
 LOCAL_CFLAGS := $(LIBADB_CFLAGS) -DADB_HOST=0
@@ -80,6 +86,12 @@ LOCAL_SHARED_LIBRARIES := libbase
 include $(BUILD_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
+
+#kang
+ifeq ($(TARGET_BUILD_VARIANT),userdebug)
+ LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif
+
 LOCAL_CLANG := $(adb_host_clang)
 LOCAL_MODULE := libadb
 LOCAL_CFLAGS := $(LIBADB_CFLAGS) -DADB_HOST=1

@@ -101,6 +113,12 @@ endif
 include $(BUILD_HOST_STATIC_LIBRARY)
 
 include $(CLEAR_VARS)
+
+#kang
+ifeq ($(TARGET_BUILD_VARIANT),userdebug)
+ LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif
+
 LOCAL_CLANG := true
 LOCAL_MODULE := adbd_test
 LOCAL_CFLAGS := -DADB_HOST=0 $(LIBADB_CFLAGS)
@@ -110,6 +128,12 @@ LOCAL_SHARED_LIBRARIES := liblog libbase libcutils
 include $(BUILD_NATIVE_TEST)
 
 include $(CLEAR_VARS)
+
+#kang
+ifeq ($(TARGET_BUILD_VARIANT),userdebug)
+ LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif
+
 LOCAL_CLANG := $(adb_host_clang)
 LOCAL_MODULE := adb_test
 LOCAL_CFLAGS := -DADB_HOST=1 $(LIBADB_CFLAGS)
@@ -135,6 +159,12 @@ include $(BUILD_HOST_NATIVE_TEST)
 
 ifeq ($(HOST_OS),linux)
 include $(CLEAR_VARS)