On Mon, Dec 20, 2010 at 03:08:02PM -0500, Robert Haas wrote: > The attached patch appears to work correctly on MacOS X. I did check, > BTW: getppid() in the attached process returns gdb's pid. Poor!
This appears to be a BSDism at least. On Linux and BSD derivatives the man pages specifically mention the reparenting (needed for catching signals) but on Linux getppid() is specifically documented to return the correct value anyway. Frankly it's a wart, for example strace/truss/whatever could (since it's tracing anyway) just fudge the correct value in the getppid() call so the userspace process doesn't notice. This has been a bug since forever though, so I wouldn't hold my breath. Have a nice day, -- Martijn van Oosterhout <klep...@svana.org> http://svana.org/kleptog/ > Patriotism is when love of your own people comes first; nationalism, > when hate for people other than your own comes first. > - Charles de Gaulle
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