Re: RFA: libiberty: avoid UBSAN complaint in cplus-dem.c

2018-07-27 Thread Ian Lance Taylor via gcc-patches
On Fri, Jul 27, 2018 at 10:12 AM, Tom Tromey wrote: > I built gdb with -fsanitize=undefined, and there was a complaint coming > from cplus-dem.c. remember_Btype can call memcpy with a NULL pointer, > which is undefined behavior according to the C standard. > > This patch fixes the problem for me.

RFA: libiberty: avoid UBSAN complaint in cplus-dem.c

2018-07-27 Thread Tom Tromey
I built gdb with -fsanitize=undefined, and there was a complaint coming from cplus-dem.c. remember_Btype can call memcpy with a NULL pointer, which is undefined behavior according to the C standard. This patch fixes the problem for me. I tested this by rebuilding gdb (with -fsanitize=undefined)