retrieve EIP/RIP for syscall in audit

[Xiaokui Shu]

Thank you very much! I will check systemtap for the feature.

Best,
Xiaokui

On Fri, Jul 13, 2012 at 1:27 PM, Steve Grubb <sgrubb at redhat.com> wrote:
> On Thursday, July 12, 2012 03:04:11 PM Xiaokui Shu wrote:
>> Hello,
>>
>> I have a question about one of the features of audit.
>> Can I use audit to log the EIP/RIP at time of syscall? There is a "-i"
>> flag in strace that does the work.
>
> No. The audit system does not collect that information. Maybe trace points or
> systemtap would be a better approach for that kind of thing?
>
> -Steve
>
>> When I compare the mechanisms of audit and strace(ptrace), I find
>> maybe it is not possible for strace to do so. Audit is on the kernel
>> side of a syscall, and does not know the audited program's internal
>> information (I am not sure if I understand it right). However, one can
>> still fetch extra information out of the syscall event (e.g. block a
>> syscall when coming, check the audited program stack and clear
>> blocking), but it may bring much overhead.
>>
>> Best,
>> Xiaokui
>>
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