如何默认打开user版本 debug 选项，默认打开adb 连接 user版本如何打开root权限
\u5982\u4f55\u9ed8\u8ba4\u6253\u5f00user debug \u9009\u9879[Description]
\u5982\u4f55\u9ed8\u8ba4\u6253\u5f00user debug \u9009\u9879
[Keyword]
user debug root
[Solution]
1. \u5728android 4.0 \u4e4b\u524d\uff0c\u8fd9\u4e2a\u8bbe\u7f6e\u662f\u5728frameworks/base/service/..../SystemServer.java \u91cc\u9762\u8bbe\u7f6e\u4f1a\u6839\u636esystem property \u7684persist.service.adb.enable \u6765\u8bbe\u7f6e\u3002\u60a8\u53ef\u4ee5\u770b\u5230\u7c7b\u4f3c\u5982\u4ee3\u7801\uff1a
// make sure the ADB_ENABLED setting value matches the secure property value
Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED,
"1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0);
// register observer to listen for settings changes
mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secure.ADB_ENABLED),
false, new AdbSettingsObserver());
\u800c\u8fd9\u4e2apersist.service.adb.enable \u9ed8\u8ba4\u662f\u653e\u5728\u5728default.prop \u4e2d\uff0c\u5728\u7f16\u8bd1\u7684\u65f6\u5019\u5728build/core/main.mk \u4e2d\u786e\u8ba4,
ifeq (true,$(strip $(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1 persist.service.adb.enable=1
# Include the debugging/testing OTA keys in this build.
INCLUDE_TEST_OTA_KEYS := true
else # !enable_target_debugging
# Target is less debuggable and adbd is off by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0 persist.service.adb.enable=0
endif # !enable_target_debugging
\u60a8\u9700\u8981\u5c06: ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0 persist.service.adb.enable=0 \u6539\u6210
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1 persist.service.adb.enable=1
2. \u5728android 4.0 \u4e4b\u540e\uff0c\u56e0\u4e3aadb \u7684\u63a7\u5236\uff0c\u7edf\u4e00\u4f7f\u7528\u4e86persist.sys.usb.config \u6765\u63a7\u5236\uff0c\u4e8e\u662f\u5bf9\u5e94\u7684\u8bbe\u7f6e\u70b9\u4e5f\u6539\u5230\u4e86frameworks/base/service/...../usb/UsbDeviceManager.java \u4e2d\uff0c\u60a8\u4e5f\u53ef\u4ee5\u770b\u5230\u7c7b\u4f3c\u7684\u4ee3\u7801\u5982\uff1a
public UsbHandler(Looper looper) {
// persist.sys.usb.config should never be unset. But if it is, set it to "adb"
// so we have a chance of debugging what happened.
mDefaultFunctions = SystemProperties.get("persist.sys.usb.config", "adb");
// sanity check the sys.usb.config system property
// this may be necessary if we crashed while switching USB configurations
String config = SystemProperties.get("sys.usb.config", "none");
if (!config.equals(mDefaultFunctions)) {
Slog.w(TAG, "resetting config to persistent property: " + mDefaultFunctions);
SystemProperties.set("sys.usb.config", mDefaultFunctions);
}
mCurrentFunctions = mDefaultFunctions;
String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
updateState(state);
mAdbEnabled = containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_ADB);
public void systemReady() {
// make sure the ADB_ENABLED setting value matches the current state
Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, mAdbEnabled ? 1 : 0);
\u800c\u8fd9\u4e2apersist.sys.usb.config \u4e2dadb \u7684\u914d\u7f6e\u662f\u5728alps/build/tools/post_process_props.py \u4e2d\u6839\u636ero.debuggable = 1 or 0 \u6765\u8bbe\u7f6e\uff0c1 \u5c31\u662f\u5f00\u542fadb, 0 \u5373\u5173\u95edadb debug. \u800c\u8fd9\u4e2aro.debuggable \u4e5f\u662f\u5728alps/build/core/main.mk \u4e2d\u8bbe\u7f6e\uff0c\u548c2.3 \u4fee\u6539\u7c7b\u4f3c
\u4e0d\u8fc7\u60a8\u8fd9\u6837\u6253\u5f00\u4e4b\u540e\uff0c\u5bf9\u4e8euser \u7248\u672cadb shell \u5f00\u542f\u7684\u8fd8\u662fshell \u6743\u9650\uff0c\u800c\u4e0d\u662froot \u6743\u9650\uff0c\u5982\u679c\u60a8\u9700\u8981root \u6743\u9650\uff0c\u9700\u8981\u518d\u6539\u4e00\u4e0bsystem/core/adb/adb.c \u91cc\u9762\u7684should_drop_privileges() \u8fd9\u4e2a\u51fd\u6570\uff0c\u5728#ifndef ALLOW_ADBD_ROOT \u65f6return 0; \u800c\u4e0d\u662freturn 1; \u5373\u53ef\u3002
\u4f60\u53ef\u4ee5\u7528\u5e94\u7528\u5b9d\u7684Kingroot\u6765\u83b7\u53d6\u6743\u9650\u3002\u4f46\u662f\u83b7\u53d6\u6743\u9650\u53ef\u80fd\u5bf9\u4ee5\u540e\u7cfb\u7edf\u5347\u7ea7\u6709\u5f71\u54cd\u3002\u8981\u8c28\u614e\u64cd\u4f5c\u7684\u54e6\u3002
1. \u4f60\u53ef\u4ee5\u5728\u7535\u8111\u91cc\u9762\u4e0b\u8f7d\u4e2a\u5e94\u7528\u5b9d\u30022.\u628a\u624b\u673a\u8c03\u8282\u6210USB\u8fde\u63a5\u6a21\u5f0f\u30023.\u7528\u6570\u636e\u7ebf\u628a\u624b\u673a\u548c\u7535\u8111\u8fde\u63a5\u30024.\u627e\u5230\u5e94\u7528\u5b9d\u91cc\u9762\u5de5\u5177\u7bb1kingroot \u3002\u7136\u540e\u5b89\u88c5\u6b65\u9aa4\u64cd\u4f5c\u5c31\u597d\u4e86\u3002
设置会根据system property 的persist.service.adb.enable 来设置。您可以看到类似如代码:
[java] view plaincopy在CODE上查看代码片派生到我的代码片
// make sure the ADB_ENABLED setting value matches the secure property value
Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED,
"1".equals(SystemProperties.get("persist.service.adb.enable")) ? 1 : 0);
// register observer to listen for settings changes
mContentResolver.registerContentObserver(Settings.Secure.getUriFor(Settings.Secu
ENABLED),false, new AdbSettingsObserver());
而这个persist.service.adb.enable 默认是放在在default.prop 中,在编译的时候在
build/core/main.mk 中确认,
[java] view plaincopy在CODE上查看代码片派生到我的代码片
ifeq (true,$(strip $(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1 persist.service.adb.enable=1
# Include the debugging/testing OTA keys in this build.
INCLUDE_TEST_OTA_KEYS := true
else # !enable_target_debugging
# Target is less debuggable and adbd is off by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0 persist.service.adb.enable=0
endif # !enable_target_debugging
您需要将: ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0
persist.service.adb.enable=0 改成
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1 persist.service.adb.enable=1
2. 在android 4.0 之后,因为adb 的控制,统一使用了persist.sys.usb.config 来控制,于是对
应的设置点也改到了frameworks/base/service/...../usb/UsbDeviceManager.java 中,您也可以
看到类似的代码如:
[java] view plaincopy在CODE上查看代码片派生到我的代码片
public UsbHandler(Looper looper) {
// persist.sys.usb.config should never be unset. But if it is, set it to "adb"
// so we have a chance of debugging what happened.
mDefaultFunctions = SystemProperties.get("persist.sys.usb.config", "adb");
// sanity check the sys.usb.config system property
// this may be necessary if we crashed while switching USB configurations
String config = SystemProperties.get("sys.usb.config", "none");
if (!config.equals(mDefaultFunctions)) {
Slog.w(TAG, "resetting config to persistent property: " + mDefaultFunctions);
SystemProperties.set("sys.usb.config", mDefaultFunctions);
}
mCurrentFunctions = mDefaultFunctions;
String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
updateState(state);
mAdbEnabled = containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_ADB);
public void systemReady() {
// make sure the ADB_ENABLED setting value matches the current state
Settings.Secure.putInt(mContentResolver, Settings.Secure.ADB_ENABLED, mAdbEnabled ?
1 : 0);
而这个persist.sys.usb.config 中adb 的配置是在alps/build/tools/post_process_props.py 中
根据ro.debuggable = 1 or 0 来设置,1 就是开启adb, 0 即关闭adb debug. 而这个
ro.debuggable 也是在alps/build/core/main.mk 中设置,和2.3 修改类似
不过您这样打开之后,对于user 版本adb shell 开启的还是shell 权限,而不是root 权限,如果
您需要root 权限,需要再改一下system/core/adb/adb.c 里面的should_drop_privileges() 这个
函数,在#ifndef ALLOW_ADBD_ROOT 时return 0; 而不是return 1; 即可。
---------------------------------------------------------------------------------------
1. 根据编译命令确定ro.debuggable
build/core/main.mk
[java] view plaincopy在CODE上查看代码片派生到我的代码片
## user/userdebug ##
user_variant := $(filter user userdebug,$(TARGET_BUILD_VARIANT))
enable_target_debugging := true
tags_to_install :=
ifneq (,$(user_variant))
# Target is secure in user builds.
ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=1
ifeq ($(user_variant),userdebug)
# Pick up some extra useful tools
tags_to_install += debug
# Enable Dalvik lock contention logging for userdebug builds.
ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
else
# Disable debugging in plain user builds.
enable_target_debugging :=
endif
# enable dex pre-optimization for all TARGET projects in default to
# speed up device first boot-up
#add by yanqi.liu for costomization @{
ifneq ($(JRD_IS_GOAL_PERSO),true)
WITH_DEXPREOPT := true
endif
#}
# Turn on Dalvik preoptimization for user builds, but only if not
# explicitly disabled and the build is running on Linux (since host
# Dalvik isn't built for non-Linux hosts).
ifneq (true,$(DISABLE_DEXPREOPT))
ifeq ($(user_variant),user)
ifeq ($(HOST_OS),linux)
ifneq ($(JRD_IS_GOAL_PERSO),true)
WITH_DEXPREOPT := true
endif
endif
endif
endif
# Disallow mock locations by default for user builds
ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=0
else # !user_variant
# Turn on checkjni for non-user builds.
# Kirby: turn off it temporarily to gain performance {
# ADDITIONAL_BUILD_PROPERTIES += ro.kernel.android.checkjni=1
# ADDITIONAL_BUILD_PROPERTIES += ro.kernel.android.checkjni=0
# } Kirby
# Set device insecure for non-user builds.
ADDITIONAL_DEFAULT_PROPERTIES += ro.secure=0
# Allow mock locations by default for non user builds
ADDITIONAL_DEFAULT_PROPERTIES += ro.allow.mock.location=1
endif # !user_variant
# always enable aed
ADDITIONAL_DEFAULT_PROPERTIES += persist.mtk.aee.aed=on
# Turn on Jazz AOT by default if not explicitly disabled and the build
# is running on Linux (since host Dalvik isn't built for non-Linux hosts).
ifneq (true,$(DISABLE_JAZZ))
ifeq ($(strip $(MTK_JAZZ)),yes)
ifeq ($(HOST_OS),linux)
# Build host dalvikvm which Jazz AOT relies on.
WITH_HOST_DALVIK := true
WITH_JAZZ := true
endif
endif
endif
ifeq (true,$(strip $(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=0
# Include the debugging/testing OTA keys in this build.
INCLUDE_TEST_OTA_KEYS := true
else # !enable_target_debugging
# Target is less debuggable and adbd is off by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0
ADDITIONAL_DEFAULT_PROPERTIES += ro.adb.secure=1
endif # !enable_target_debugging
2. 确定默认的usb功能
build/tools/post_process_props.py
[java] view plaincopy在CODE上查看代码片派生到我的代码片
# Put the modifications that you need to make into the /system/build.prop into this
# function. The prop object has get(name) and put(name,value) methods.
def mangle_build_prop(prop):
#pass
#If ro.mmitest is true, then disable MTP, add mass_storage for default
if prop.get("ro.mmitest") == "true":
prop.put("persist.sys.usb.config", "mass_storage")
# If ro.debuggable is 1, then enable adb on USB by default
# (this is for userdebug builds)
if prop.get("ro.build.type") == "eng":
val = prop.get("persist.sys.usb.config").strip('\r\n')
if val == "":
val = "adb"
else:
val = val + ",adb"
prop.put("persist.sys.usb.config", val)
# UsbDeviceManager expects a value here. If it doesn't get it, it will
# default to "adb". That might not the right policy there, but it's better
# to be explicit.
if not prop.get("persist.sys.usb.config"):
prop.put("persist.sys.usb.config", "none");
# Put the modifications that you need to make into the /system/build.prop into this
# function. The prop object has get(name) and put(name,value) methods.
def mangle_default_prop(prop):
# If ro.debuggable is 1, then enable adb on USB by default
# (this is for userdebug builds)
if prop.get("ro.debuggable") == "1":
val = prop.get("persist.sys.usb.config")
if val == "":
val = "adb"
else:
val = val + ",adb"
prop.put("persist.sys.usb.config", val)
# UsbDeviceManager expects a value here. If it doesn't get it, it will
# default to "adb". That might not the right policy there, but it's better
# to be explicit.
if not prop.get("persist.sys.usb.config"):
prop.put("persist.sys.usb.config", "none");
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