I'm not sure that we should disable a broken feature instead of attempting a fix.
CONFIG_FUNCTION_GRAPH_TRACER is dependent on CONFIG_FRAME_POINTER and there have been reports by MediaTek that the frame pointer unwinder is faster in some cases. On Mon, Aug 5, 2019 at 6:39 AM Dave Martin <[email protected]> wrote: > > On Fri, Aug 02, 2019 at 10:27:30AM -0700, Nathan Huckleberry wrote: > > You're right. Would pushing an extra register be an adequate fix? > > Would forcing CONFIG_ARM_UNWIND=y for clang work as an alternative to > this? > > Assuming clang supports -funwind-tables or equivalent, this may just > work. > > [...] > > Cheers > ---Dave
