[RK3288][Android6.0] 除錯筆記 --- user版本串列埠只有輸出不能輸入
阿新 • • 發佈：2018-12-31
Platform: ROCKCHIP
OS: Android 6.0
Kernel: 3.10.92
現象:
編譯成user版本之後串列埠只有輸出沒有輸入.
原因:
編譯user版本之後 ro.debuggable=0
build/core/main.mk:
ifeq (true,$(strip $(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
# Enable Dalvik lock contention logging.
ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
# Include the debugging/testing OTA keys in this build.
INCLUDE_TEST_OTA_KEYS := true
else # !enable_target_debugging
# Target is less debuggable and adbd is off by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=0
endif # !enable_target_debugging
system/core/rootdir/init.rc
service console /system/bin/sh
class core
console
disabled
user shell
group shell log
seclabel u:r:shell:s0
on property:ro.debuggable=1
start console
可見console是否啟動受屬性ro.debuggable的控制.
解決方法:
1. 修改 ro.debuggable = 1
OS: Android 6.0
Kernel: 3.10.92
現象:
編譯成user版本之後串列埠只有輸出沒有輸入.
原因:
編譯user版本之後 ro.debuggable=0
build/core/main.mk:
ifeq (true,$(strip $(enable_target_debugging)))
# Target is more debuggable and adbd is on by default
ADDITIONAL_DEFAULT_PROPERTIES += ro.debuggable=1
# Enable Dalvik lock contention logging.
ADDITIONAL_BUILD_PROPERTIES += dalvik.vm.lockprof.threshold=500
# 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
endif # !enable_target_debugging
system/core/rootdir/init.rc
service console /system/bin/sh
class core
console
disabled
user shell
group shell log
seclabel u:r:shell:s0
on property:ro.debuggable=1
start console
可見console是否啟動受屬性ro.debuggable的控制.
解決方法:
1. 修改 ro.debuggable = 1
2. 直接將disabled移除,預設無條件啟動console.
參考:
http://blog.csdn.net/buaaroid/article/details/32714041