kkourt@ wrote: > From: Kornilios Kourtis <kornilios@xxxxxxxxxxxxx> > > When trying to use btf encoding for an apparently problematic kernel > file, pahole segfaults. As can be seen below [1], the problem is that we > are trying to dereference a NULL decoder. > > Fix this by checking the return value of dwfl_getmodules which [2] whill > return -1 on errors or an offset if one of the modules did not return > DWARF_CB_OK. (In this specific case, it was __cus__load_debug_types that > returned DWARF_CB_ABORT.) > [...] > [2] https://sourceware.org/git/?p=elfutils.git;a=blob;f=libdwfl/libdwfl.h;h=f98f1d525d94bc7bcfc7c816890de5907ee4bd6d;hb=HEAD#l200 Thanks for the reference and fix. Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
