> Is anyone still working on this? > > It would be very useful to include this option in gcc trunk, and have > either -g1 or -gmlt emit line number information. This saves > considerable space and time during compilation for large builds where > full debug info is not needed, but line numbers in stack traces are > still helpful (e.g. regression testing opt builds) > > If I can help somehow, please let me know how.
I sent a revised patch a few months ago: http://gcc.gnu.org/ml/gcc-patches/2013-02/msg00260.html But got no response at all. I had intended to ping it after Stage 1 reopened, but I didn't get around to it (it's been a low priority). I'll ping it to get approval for the parts that are outside dwarf2out proper, and try to get it committed soon. Sorry for the delay. -cary