Description Samuel Ghinet 2015-10-26 12:22:34 EDT

Hello,

Looking into agent/tcf/services/dwarfframe.c, we can see:

527    default:
528        switch (op >> 6) {
529        case 0:
530            str_exception(ERR_INV_DWARF, "Unsupported instruction in Call Frame Information");
531            break;

I am having the situation that, I have a frame extension - DW_CFA_GNU_window_save - which is not supported by tcf. I think it would be a good idea if the agent exposed some interface (perhaps, some callbacks) so that the debuggers could handle themselves the extended opcodes. It would be preferable to hacking into the agent.

I also found a list of dwarf extensions here, if it may be of any help:
https://fedorahosted.org/elfutils/wiki/DwarfExtensions

Thanks,
Samuel