On Fri, Nov 15, 2019 at 7:37 AM Mark Rutland <mark.rutland@xxxxxxx> wrote: > > +config SHADOW_CALL_STACK_VMAP > > + bool > > + depends on SHADOW_CALL_STACK > > + help > > + Use virtually mapped shadow call stacks. Selecting this option > > + provides better stack exhaustion protection, but increases per-thread > > + memory consumption as a full page is allocated for each shadow stack. > > The bool needs some display text to make it selectable. > > This should probably be below SHADOW_CALL_STACK so that when it shows up > in menuconfig it's where you'd expect it to be. > > I locally hacked that in, but when building defconfig + > SHADOW_CALL_STACK + SHADOW_CALL_STACK_VMAP, the build explodes as below: Ugh, thanks for pointing this out. I'll fix this in v6. Sami
