问题
I'd like to have the following command init my .lldbinit.
process handle SIGPROF -n false -p true -s false
The problem is that lldb won't run this command when it starts up and doesn't yet have a process.
error: Aborting reading of commands after command #1: ' process handle SIGPROF -n false -p true -s false' failed with error: No current target; cannot handle signals until you have a valid target and process.
How can I tell lldb to apply this command whenever it does have a process?
回答1:
One workaround for this is to take the set of commands you want to run in lldb after the file you are debugging is loaded, put them in a file, and run:
$ lldb -s <command file> <FileToBeDebugged>
Then if you like this and use it often, you can make a shell alias of part up to .
If you are using Xcode, a common trick is to set a breakpoint at main in your project, put the commands you want to run there, and then make it "auto-continue".
回答2:
As of right now, I don't think you can
Allowing this would require one of two things:
- a model where LLDB records your preferences and applies them to processes as they come about (only the first one? all of them?)
- a model where LLDB has "event hooks" for things like a process has shown up, a process has gone away, and you could script the hook (via LLDB commands or Python) to perform certain actions, including setting signal handling
来源：https://stackoverflow.com/questions/25572233/process-handle-in-lldbinit