On Fri, Sep 09, 2022 at 11:07:04AM -0700, Josh Poimboeuf wrote: > Alternatives > ------------ > > Another idea which has been floated in the past is for objtool to read > DWARF (or .eh_frame) to help it figure out the control flow. That > hasn't been tried yet, but would be considerably more difficult and > fragile IMO. I though Ard played around with that a bit on ARM64. And yes, given that most toolchains consider DWARF itself best-effort, I'm not holding my breath there. On top of that, building a kernel with DWARFs on is just so much slower..