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added a recipe for debugging plug-ins 

2006-12-02  Mukund Sivaraman  <muks@mukund.org>

	* devel-docs/debug-plug-ins.txt: added a recipe for debugging
	plug-ins
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Mukund Sivaraman 2006-12-02 06:19:27 +00:00 committed by Mukund Sivaraman
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@ -1,3 +1,8 @@
2006-12-02 Mukund Sivaraman <muks@mukund.org>
* devel-docs/debug-plug-ins.txt: added a recipe for debugging
plug-ins
2006-12-02 Mukund Sivaraman <muks@mukund.org>
* configure.in: dropped the required libcurl version to 7.15.1

24
devel-docs/debug-plug-ins.txt
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@ -27,6 +27,30 @@ GIMP_PLUGIN_DEBUG=name<,options>
on: shorthand for run:fatal-warnings. This is also the default
in the absence of an options string.
The steps to debug a plug-in are as follows:
0. Make sure GIMP is built with debugging information (gcc -g)
1. Start GIMP with the appropriate debugging environment variables
2. Load the standalone plug-in program in the debugger (gdb or
the ddd frontend to gdb)
3. Invoke the plug-in procedure in GIMP. GIMP will start the plug-in
process, then send a STOP signal to it and then print a message with
the pid of the plug-in process to the terminal.
4. Attach to the pid of the plug-in process in the debugger
5. Set breakpoints where you want the plug-in to stop in the debugger
6. Send the CONT signal (kill -CONT <pid>) to the plug-in process
7. Enter "continue" in the debugger. The plug-in will then continue
and break at the breakpoints.
Examples:
GIMP_PLUGIN_DEBUG=blur