RE: Re-test: step-jump-cont

2008-03-20 Thread Roland McGrath
> I think the fix is for GETREGS to clear TF if it was set implicitly though > SINGLESTEP. This is the behavior of 2.6.25 (and older utrace kernels). See TIF_FORCED_TF. Thanks, Roland

RE: Re-test: step-jump-cont

2008-03-20 Thread jdike
> The behavior of recent kernels (2.6.25-rcN) and of past utrace kernels for > a long time is to preserve the "normal" behavior of TF for the program > itself. That means the TF bit is seen in eflags if user program put it > there. On x86 this can be done (and some programs do it) with pushf/popf