Re: [PATCH] V5, #5 of 15: Support -fstack-protect and large stack frames

2019-10-14 Thread Michael Meissner
On Fri, Oct 11, 2019 at 04:44:51PM -0500, Segher Boessenkool wrote: > On Wed, Oct 09, 2019 at 04:22:06PM -0400, Michael Meissner wrote: > > This patch allows -fstack-protect to work with large stack frames. > > I don't understand; please explain. > > What I see is a workaround for not properly ha

Re: [PATCH] V5, #5 of 15: Support -fstack-protect and large stack frames

2019-10-11 Thread Segher Boessenkool
On Wed, Oct 09, 2019 at 04:22:06PM -0400, Michael Meissner wrote: > This patch allows -fstack-protect to work with large stack frames. I don't understand; please explain. What I see is a workaround for not properly handling prefixed addresses in the stack protect code (by forcing the addresses to