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-rwxr-xr-xtools/perf/pmu-events/jevents.py12
1 files changed, 9 insertions, 3 deletions
diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py
index 0daa3e007528..4c398e0eeb2f 100755
--- a/tools/perf/pmu-events/jevents.py
+++ b/tools/perf/pmu-events/jevents.py
@@ -4,6 +4,7 @@
import argparse
import csv
import json
+import metric
import os
import sys
from typing import (Callable, Dict, Optional, Sequence, Set, Tuple)
@@ -268,9 +269,10 @@ class JsonEvent:
self.metric_name = jd.get('MetricName')
self.metric_group = jd.get('MetricGroup')
self.metric_constraint = jd.get('MetricConstraint')
- self.metric_expr = jd.get('MetricExpr')
- if self.metric_expr:
- self.metric_expr = self.metric_expr.replace('\\', '\\\\')
+ self.metric_expr = None
+ if 'MetricExpr' in jd:
+ self.metric_expr = metric.ParsePerfJson(jd['MetricExpr']).Simplify()
+
arch_std = jd.get('ArchStdEvent')
if precise and self.desc and '(Precise Event)' not in self.desc:
extra_desc += ' (Must be precise)' if precise == '2' else (' (Precise '
@@ -322,6 +324,10 @@ class JsonEvent:
s = ''
for attr in _json_event_attributes:
x = getattr(self, attr)
+ if x and attr == 'metric_expr':
+ # Convert parsed metric expressions into a string. Slashes
+ # must be doubled in the file.
+ x = x.ToPerfJson().replace('\\', '\\\\')
s += f'{x}\\000' if x else '\\000'
return s