Monthly Archives: March 2007

Kernel hacking mostly…

The “mostly” allows me to celebrate my most recent non-kernel-hacking, at least personally, interesting news: I’m keeping up with jogging, now trying to get past the confortable part of jogging, over-achiever, not really… only 17:44.06 on a 3.3 KM circuit at Barigui, if only da beers would keep some distance from myself…

libdwfl conversion

Finally I found time to convert dwarves to use the more active libdwfl library found in elfutils, thanks to Ulrich Drepper and Roland McGrath we can forget about most of the low level details related to RELA architectures and get the dwarves to work with kernel modules on architectures such as x86_64, where we need to do relocation work on the .debug_info section, now just enjoy pahole & friends working on more targets.

There is still some work to do on two of the dwarves that handle more than one target, codiff and ctracer, where dwfl_default_argp is not enough as it only handles one side of the game needed for these two dwarves, we need to open another set to compare in the case of codiff and another set for resolving the kprobes functions in the case of ctracer.


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