On Mon, Sep 17, 2018 at 12:15:08PM +0000, Christophe Leroy wrote: > I would have liked to use -mstack-protector-guard=tls > -mstack-protector-guard-reg=r2 > -mstack-protector-guard-offset=offsetof(struct task_struct, stack_canary) > but I have > not found how set the value of offsetof(struct task_struct, stack_canary) in > Makefile.
By far the easiest is to have the canary at a fixed offset from r2. Segher
