On Fri, Mar 22, 2013 at 02:40:42PM -0700, Josh Stone wrote: > On 03/22/2013 08:10 AM, Oleg Nesterov wrote: > > This looks simple, but probably we need to add the additional "ulong > > bp_vaddr" > > argument for rp_handler(). > > FWIW, in SystemTap we don't currently do anything that would need > bp_vaddr. The uprobe_consumer already gives the context, so I'm not > sure what else you would do with the *entry* address of the function > that just returned. Perhaps you could emulate an additional top line on > a stacktrace, but it doesn't tell you where in the function you were.
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. Anton -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
