问题
I am trying to figure out to debug my Android ndk project in c++, using the lldb debugger.
I am trying achieve this by using the command line only.
I can not seem to find any articles or documentation on how to use lldb along with adb to debug an app from the command line.
回答1:
Probably you can try below: (This example steps are based on macOS)
run gdb server and attach process
//Below commands will suspend the execution on the running app, and waits for a debugger to connect to it on port 5045.
adb shell
// to get pid
root@generic_x86:/ # ps | grep <your-app-name>
u0_a54 6510 1196 800157 47442 ffffffff b662df1b S
<your-app-name>
root@generic_x86:/ # gdbserver :5045 --attach 6510 (PID)
Attached; pid = 6510
Listening on port 5045
//The process is now suspended, and gdbserver is listening for debugging clients on port 5045.
attach gdb debugger
//open a new terminal, e.g. terminal2, send below commands from this new terminal
//forward the above port to a local port on the host with the abd forward command
adb forward tcp:5045 tcp:5045
//launch gdb client from your android ndk folder
<your-ndk-home>/android-ndk-r16b/prebuilt/darwin-x86_64/bin/gdb
//Target the gdb to the remote sever
(gdb) target remote :5045
//now the process is successfully attached with the application for debugging, you can see below info from terminal 1.
Remote debugging from host 127.0.0.1
来源：https://stackoverflow.com/questions/53733781/how-do-i-use-lldb-to-debug-c-code-on-android-on-command-line