NDK调试：NDK-gdb的不拉app_process。谁当创建app_process二进制？ [英] NDK debugging: ndk-gdb fails to pull app_process. Who and when creates the app_process binary?

问题描述

在调查与本土code命中断点问题，我决定进去看看NDK-gdb的工作确定。我已经删除app_process，启动Java调试和运行 NDK-gdb的--force 。你猜怎么着，不创建app_process。 NDK-gdb的--verbose 输出有这一行：

While investigating a problem with hitting breakpoints in native code, I decided to check if ndk-gdb works OK. I've deleted app_process, started Java debugging and ran ndk-gdb --force. Guess what, app_process is not created. ndk-gdb --verbose output has this line :

## COMMAND: adb_cmd pull /system/bin/app_process obj/local/armeabi-v7a/app_process
remote object '/system/bin/app_process' not a file or directory
Pulled app_process from device/emulator.

我已经卸载从目标设备的应用程序，重新启动设备和反复。仍然没有app_process。所以，我不知道有什么问题就在这里，我也想知道是该文件的创建，以及通过什么程序/脚本时。

I've uninstalled the app from the target device, rebooted the device and repeated. Still no app_process. So, I wonder what's the problem here, and I also wonder when is this file created, and by what process / script.

推荐答案

如前所述，安卓5.0有 /系统/斌/ app_process 作为一个符号链接 /系统/斌/ app_process32 。因为一个符号，不能用亚行拉拉时， NDK-gdb的脚本将不能正常工作，是

As mentioned before, Android 5.0 has /system/bin/app_process as a symlink to /system/bin/app_process32. Since a symlink cannot be pulled with adb pull, the ndk-gdb script will not be able to work as-is.

修改 NDK-gdb的如下支持api21变化以及向后兼容＆LT; api21：

Change ndk-gdb as follows to support api21 changes as well as backwards compatibility for < api21:

# Get the app_server binary from the device
APP_PROCESS=$APP_OUT/app_process
if [ "$API_LEVEL" -lt "21" ] ; then
    run adb_cmd pull /system/bin/app_process `native_path $APP_PROCESS`
    log "Pulled app_process from device/emulator to $APP_PROCESS"
else
    run adb_cmd pull /system/bin/app_process32 `native_path $APP_PROCESS`
    log "Pulled app_process32 from device/emulator to $APP_PROCESS"
fi

编辑：或：

# Get the app_server binary from the device
APP_PROCESS=$APP_OUT/app_process
APP_PROCESS_DEVICE=app_process32
if [ "$API_LEVEL" -lt "21" ] ; then
    APP_PROCESS_DEVICE=app_process
fi
run adb_cmd pull /system/bin/$APP_PROCESS_DEVICE `native_path $APP_PROCESS`
log "Pulled $APP_PROCESS_DEVICE from device/emulator to $APP_PROCESS"

原始的修改也正在于此： http://pastebin.com/YfxNs06U 。需要注意的是这种改变重命名 app_process32 到 app_process 时，它被拉到你的开发机支持具有单一的调试配置在月食。

Original Change is also here: http://pastebin.com/YfxNs06U. Note that this change renames app_process32 to app_process when it is pulled to your development machine to support having a single debugging config in Eclipse.

这篇关于NDK调试：NDK-gdb的不拉app_process。谁当创建app_process二进制？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！