linux-kernel - Re: [PATCH v2 2/7] perf jevents: Support test events folder

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Date:   Tue, 17 Mar 2020 17:20:52 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     John Garry <john.garry@...wei.com>
Cc:     peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        namhyung@...nel.org, will@...nel.org, ak@...ux.intel.com,
        linuxarm@...wei.com, linux-kernel@...r.kernel.org,
        james.clark@....com, qiangqing.zhang@....com
Subject: Re: [PATCH v2 2/7] perf jevents: Support test events folder

On Tue, Mar 17, 2020 at 07:02:14PM +0800, John Garry wrote:
> With the goal of supporting pmu-events test case, introduce support for a
> test events folder.
> 
> These test events can be used for testing generation of pmu-event tables
> and alias creation for any arch.
> 
> When running the pmu-events test case, these test events will be used
> as the platform-agnostic events, so aliases can be created per-PMU and
> validated against known expected values.
> 
> To support the test events, add a "testcpu" entry in pmu_events_map[].
> The pmu-events test will be able to lookup the events map for "testcpu",
> to verify the generated tables against expected values.
> 
> The resultant generated pmu-events.c will now look like the following:

can't compile this one:

  HOSTCC   pmu-events/jevents.o
pmu-events/jevents.c: In function ‘main’:
pmu-events/jevents.c:1195:3: error: ‘ret’ undeclared (first use in this function)
 1195 |   ret = 1;
      |   ^~~
pmu-events/jevents.c:1195:3: note: each undeclared identifier is reported only once for each function it appears in
pmu-events/jevents.c:1196:3: error: label ‘out_free_mapfile’ used but not defined
 1196 |   goto out_free_mapfile;
      |   ^~~~
mv: cannot stat 'pmu-events/.jevents.o.tmp': No such file or directory
make[3]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:97: pmu-events/jevents.o] Error 1
make[2]: *** [Makefile.perf:619: pmu-events/jevents-in.o] Error 2
make[1]: *** [Makefile.perf:225: sub-make] Error 2
make: *** [Makefile:70: all] Error 2


jirka