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Electrolysis/Debugging: Difference between revisions
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(Created page with '== Windows == ('''TODO''') Apparently Windows has a magic debugger that works great with multiple processes. == Linux == To debug only the parent process with emacs gud-gdb, j…') |
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To debug both the parent and children, make sure MOZ_DEBUG_CHILD_PROCESS is set in the environment you'll launch the parent from, and launch the parent process in gud-gdb as above. Unfortunately, as far as the author knows gud-gdb can't handle multiple gdb sessions ('''TODO: is that true?'''). So to debug child processes, you'll need to pull up a new shell for each and attach to them with good old "gdb attach PID". | To debug both the parent and children, make sure MOZ_DEBUG_CHILD_PROCESS is set in the environment you'll launch the parent from, and launch the parent process in gud-gdb as above. Unfortunately, as far as the author knows gud-gdb can't handle multiple gdb sessions ('''TODO: is that true?'''). So to debug child processes, you'll need to pull up a new shell for each and attach to them with good old "gdb attach PID". | ||
Don't forget to check out the [https://developer.mozilla.org/en/Debugging_Mozilla_with_gdb main Mozilla gdb guide]. | |||
Also the [http://code.google.com/p/chromium/wiki/LinuxDebugging#GDB Google Chromium debugging guide for Linux] has some tips that also apply to our codebase, but we don't support all the tricks they show yet. | |||
'''TODO''' other debuggers? | '''TODO''' other debuggers? | ||