On Mon, May 20, 2013 at 7:31 AM, Basile Starynkevitch <bas...@starynkevitch.net> wrote: > > Currently (for GCC 4.8 at least) when a plugin crashes (ie. SIGSEGV) > libbacktrace is apparently not able > to show backtrace information inside the plugin[s]. > > I believe that, at least on GNU/Linux wich has dladdr, it would be nice to > extend libbacktrace > to show backtrace information inside plugins (at least those compiled with > -g). > > Is is reasonably feasible? I'm not familiar with libbacktrace, but (since > MELT would be very happy with that) > I might perhaps help....
That is actually supposed to work already. The code is in libbacktrace/elf.c. It calls dl_iterate_phdr to find all the shared libraries loaded into the process. I never tested it with dlopen so I can certainly believe that it doesn't work, but I don't know why it doesn't work. Ian
