On Fri, Oct 16, 2020 at 2:49 PM Adrian Larumbe <fromago@xxxxxxxxx> wrote: > > > OK, I'll bite. You *are* getting the function name and offset, what additional > > knowledge do you get from knowing the VA? > > I was hoping to use the VA to calculate the C source line where the > fault happens, by substracting the function's VA from the module load > address as revealed by cat /proc/modules, adding the offset within the > function and then passing the offset to addr2line. > > I've just realised I might as well load the module object file into gdb > and do 'info line *(func+offset)'. > > But how would I do this just with addr2line ? scripts/faddr2line path/to/module.ko symbol+0xsym_offset/0xsym_size would give you the C source line referenced by the offset. > > > What architecture is this on? Stack unwinding is architecture-dependent, so > > it may just be the unwinder for that arch doesn't output the virtual address. > > It's a QEMU VM, 'uname -m' claims it's i686. > > > > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@xxxxxxxxxxxxxxxxx > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
