[PATCH -tip v5 06/10] kprobes/x86: Cleanup save/restore registers

Frederic Weisbecker fweisbec@gmail.com
Tue Nov 24 20:20:00 GMT 2009


On Tue, Nov 24, 2009 at 10:40:24AM -0500, Frank Ch. Eigler wrote:
> Frederic Weisbecker <fweisbec@gmail.com> writes:
> 
> > [...]
> >> +#define SAVE_REGS_STRING		\
> >> +#define RESTORE_REGS_STRING		\
> >
> > BTW, do you really need to push/pop every registers
> > before/after calling a probe handler?
> 
> It's part of the definition of a kprobe, that a populated
> pt_regs* value is passed.  Clients can rely on that in order
> to access registers etc.
> 
> - FChE

Yeah I made a confusion. Sorry.



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