linux-kernel - [PATCH 0/3] perf: Support event alias in form foo-bar-baz

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Message-ID: <1642432215-234089-1-git-send-email-john.garry@huawei.com>
Date:   Mon, 17 Jan 2022 23:10:12 +0800
From:   John Garry <john.garry@...wei.com>
To:     <peterz@...radead.org>, <mingo@...hat.com>, <acme@...nel.org>,
        <mark.rutland@....com>, <alexander.shishkin@...ux.intel.com>,
        <jolsa@...hat.com>, <namhyung@...nel.org>, <irogers@...gle.com>,
        <kjain@...ux.ibm.com>
CC:     <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>, <liuqi115@...wei.com>,
        <zhangshaokun@...ilicon.com>, John Garry <john.garry@...wei.com>
Subject: [PATCH 0/3] perf: Support event alias in form foo-bar-baz

Currently event aliases in the form foo-bar-baz are not supported.

The HiSilicon D06 platform has uncore event aliases in that form, and
using those aliases fail:

$ ./perf list sdir-home-migrate 
  
List of pre-defined events (to be used in -e): 
  
uncore hha:
  sdir-home-migrate 
 [Unit: hisi_sccl,hha]  

$ sudo ./perf stat -e sdir-home-migrate  
event syntax error: 'sdir-home-migrate'  
                        \___ parser error  
Run 'perf list' for a list of valid events  
  
 Usage: perf stat [<options>] [<command>]
  
 -e, --event <event>event selector. use 'perf list' to list available events

This series added support for such an event alias form.

I am no expert on l+y, so any and all review here would be appreciated,
especially the last patch which is marked as RFC (for that same reason).

The series is based on acme perf/core @ 9bce13ea88f8.

John Garry (3):
  perf parse-events: Support event alias in form foo-bar-baz
  perf test: Add pmu-events test for aliases with hyphens
  perf test: Add parse-events test for aliases with hyphens

 .../arch/test/test_soc/cpu/uncore.json        | 16 +++++
 tools/perf/tests/parse-events.c               | 49 ++++++++++++++
 tools/perf/tests/pmu-events.c                 | 32 +++++++++
 tools/perf/util/parse-events.c                | 67 ++++++++++++++++---
 tools/perf/util/parse-events.h                |  1 +
 tools/perf/util/parse-events.l                |  2 +
 tools/perf/util/parse-events.y                | 17 ++++-
 7 files changed, 171 insertions(+), 13 deletions(-)

-- 
2.26.2