scanframe         206 src/pkg/runtime/mgc0.c static bool	scanframe(Stkframe *frame, void *wbufp);
scanframe        1692 src/pkg/runtime/mgc0.c 		runtime·gentraceback(~(uintptr)0, ~(uintptr)0, 0, gp, 0, nil, 0x7fffffff, scanframe, wbufp, false);