Re: [PATCH 0/7] uretprobes: return probes implementation

From: Oleg Nesterov
Date: Sat Mar 23 2013 - 14:07:14 EST

On 03/23, Anton Arapov wrote:
> IIUC, Oleg have stressed that perf and trace events requires
> additional code to leverage the return probes. IOW this patchset
> implements core only and to use it we need to teach the perf about
> rp_handler().


> And I don't see why we would need additional parameter for
> rp_handler() as well.

trace_uprobe should use the same fmt = "(%lx <- %lx)" to teport
"entry <- exit" info, like trace_kprobe does.

And note that, unlike kprobe, the same function can be mmapped at
different address by different (or even the same) tasks.

But mostly I just wanted to say that yes, we will also teach
trace_uprobe to use the new feature before we ask to merge this


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