是否可以通过命令行将参数传递给GDB？

Question

I am running someone's code and the code crashes on a specific dataset, but the crash message as-is is not informative. I cannot call GDB and then wait (for GDB) to pass r to it (things are running on a cluster). Is there a way to pass r to GDB in the runtime by default, something like the following?

 gdb r ./run

Answer 1

You can load your program in GDB, like:

$ gdb your_program_name

and then attach to process which you want to debug

attach pid

Answer 2

You may use a commands file. Write all the commands you want to execute sequentially in the file. And use that file to pass the command to GDB with input redirection:

echo "r" > cmds
gdb r --args ./run -arg1 -arg2 -arg3 < cmds