On Tue, Dec 02, 2014 at 06:09:35PM -0800, Sukadev Bhattiprolu wrote: > From: Cody P Schafer <c...@linux.vnet.ibm.com> > > Enable event specification like: > > pmu/event_name,param1=0x1,param2=0x4/ > > Assuming that > > /sys/bus/event_source/devices/pmu/events/event_name > > Contains something like > > param2=$foo,bar=1,param1=$baz
oops.. sorry to be PITA on this one.. I might have missed something in the previous discussion but I guess I might have finally some opinion on this ;-) here's how I think your patchset works: in /sys/bus/event_source/devices/pmu/events/event_name you can actually have: param2=foo,bar=1,param1=baz notice no '$', thats what you add later in 'perf list' output, right? Moreover it actually does not matter whats in value 'param2=HERE', because it's not used in the config code at all apart from the 'perf list' display processing. So when we discussed the '$' name way, I thought it'd be like: in /sys/bus/event_source/devices/pmu/events/event_name you have: param2=$foo,bar=1,param1=$baz and on command line you'd use: pmu/event_name,foo=0x1,bar=0x4/ to assign directly to the $var, which would justify the $var syntax I think.. anyway we could assign directly to the param term name as you do, but I think we just need to mark the term as parametrized, like: in /sys/bus/event_source/devices/pmu/events/event_name you have: param2=?,bar=1,param1=? and on command line you'd use: pmu/event_name,param2=0x1,param1=0x4/ while the config code would check that the param substitution is done only for terms with '?' in value, like 'param2=?' and not for all PARSE_EVENTS__TERM_TYPE_STR type terms (as of now) thanks, jirka _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
