Le mardi 11 août 2009 à 08:24 -0500, Manoj Srivastava a écrit : > Hmm. I see very little benefit here. Firstly, to use build id, > you have to intercept the upstream build system and add --build-id > (and perhaps the --build-id-style) option to ld, instead of the current > method of letting the upstream build happen and working on the produced > objects -- this is more intrusive. And what do we gain?
Without build IDs, GDB has no sure way to map the binary to the correct detached symbols. Therefore it will read the whole file to compute its CRC32 (!) and compare it to the one stored in the gnu_debuglink section of the binary. This sole issue is responsible for gdb taking up to several minutes to produce a backtrace for binaries using big libraries like xulrunner. And don’t even think of using the debugging symbols over the network in this case. -- .''`. Josselin Mouette : :' : `. `' “I recommend you to learn English in hope that you in `- future understand things” -- Jörg Schilling
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