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perf parse: Refactor 'struct perf_evsel_config_term'

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The struct perf_evsel_config_term::val is a union which contains fields
'callgraph', 'drv_cfg' and 'branch' as string pointers.  This leads to
the complex code logic for handling every type's string separately, and
it's hard to release string as a general way.

This patch refactors the structure to add a common field 'str' in the
'val' union as string pointer and remove the other three fields
'callgraph', 'drv_cfg' and 'branch'.  Without passing field name, the
patch simplifies the string handling with macro ADD_CONFIG_TERM_STR()
for string pointer assignment.

This patch fixes multiple warnings of line over 80 characters detected
by checkpatch tool.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/20200117055251.24058-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Leo Yan
2020-01-17 13:52:50 +08:00
committed by Arnaldo Carvalho de Melo
parent 0cc4bd8f70
commit e884602b57
4 changed files with 45 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
tools/perf/util/evsel.c
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@@ -808,12 +808,12 @@ static void apply_config_terms(struct evsel *evsel,
perf_evsel__reset_sample_bit(evsel, TIME);
break;
case PERF_EVSEL__CONFIG_TERM_CALLGRAPH:
callgraph_buf = term->val.callgraph;
callgraph_buf = term->val.str;
break;
case PERF_EVSEL__CONFIG_TERM_BRANCH:
if (term->val.branch && strcmp(term->val.branch, "no")) {
if (term->val.str && strcmp(term->val.str, "no")) {
perf_evsel__set_sample_bit(evsel, BRANCH_STACK);
parse_branch_str(term->val.branch,
parse_branch_str(term->val.str,
&attr->branch_sample_type);
} else
perf_evsel__reset_sample_bit(evsel, BRANCH_STACK);