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Revert "perf pmu: Fix pmu events parsing rule" 

As reported by Adrian Hunter, this breaks intel_pt event parsing:

  # perf record -e intel_pt//u uname
  event syntax error: 'intel_pt//u'
                               \___ parser error
  Run 'perf list' for a list of valid events

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

      -e, --event <event>   event selector. use 'perf list' to list available events
  #

This reverts commit 9a4a931ce8.

Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-ye1o2mji7x68xotiot1tn1gp@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-05-07 15:27:01 -03:00
parent 5981ec3668
commit 4a35a9027f
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
tools/perf/util/parse-events.y
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@ -224,15 +224,15 @@ event_def: event_pmu |
event_bpf_file
event_pmu:
PE_NAME '/' event_config '/'
PE_NAME opt_event_config
{
struct list_head *list, *orig_terms, *terms;
if (parse_events_copy_term_list($3, &orig_terms))
if (parse_events_copy_term_list($2, &orig_terms))
YYABORT;
ALLOC_LIST(list);
if (parse_events_add_pmu(_parse_state, list, $1, $3, false)) {
if (parse_events_add_pmu(_parse_state, list, $1, $2, false)) {
struct perf_pmu *pmu = NULL;
int ok = 0;
char *pattern;
@ -262,7 +262,7 @@ PE_NAME '/' event_config '/'
if (!ok)
YYABORT;
}
parse_events_terms__delete($3);
parse_events_terms__delete($2);
parse_events_terms__delete(orig_terms);
$$ = list;
}