System call support in reversible debugging

Sean Chen
Fri Dec 4 15:40:00 GMT 2009

On Thu, Dec 3, 2009 at 5:00 PM, Jakob Engblom <> wrote:
>> > Not a black box -- but not a detailed implementation either.
>> > Each system call has a specification -- that's all we need to
>> > understand.  The specification tells what user-visible external
>> > side effects can be expected (eg. this buffer will be filled).
>> > Changes that are internal to the kernel do not concern us.
>> Thanks. I understand your concern. Does Linux kernel provide such an
>> official specification? If so, could you throw me a hint on where to
>> get it? Since we have all of the side effects, recording the system
>> calls are feasible and trustable.
> I guess these have to be the header files specifying the function call
> prototypes?
> Or is something else also done for precord?
> /jakob

I searched sys_open in the whole Linux kernel, and I didn’t find such
information. Thanks all the same.

Best Regards,
Sean Chen

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