[PATCH v2 0/3] perf metricgroup: Fix segmentation fault and refine logs

[Leo Yan]

The first patch is to fix segmentation fault if there have syntax errors
in metric groups.

The last two patches are to refine logs to give users clear hints for
failures.

Signed-off-by: Leo Yan <leo.yan@xxxxxxx>
---
Changes in v2:
- Added fix tags (James).
- Added before and after logs (James).
- Link to v1: https://lore.kernel.org/r/20260327-perf_fix_metrics_group-v1-1-49e4b8ee9a08@xxxxxxx

---
Leo Yan (3):
      perf expr: Return -EINVAL for syntax error in expr__find_ids()
      perf expr: Add '\n' in literal parse errors
      perf metricgroup: Refine error logs

 tools/perf/util/expr.c        |  7 ++++---
 tools/perf/util/metricgroup.c | 11 ++++++-----
 2 files changed, 10 insertions(+), 8 deletions(-)
---
base-commit: d9db9c8db56c3e378aa5c91637664f77ca5a6f72
change-id: 20260327-perf_fix_metrics_group-4be55b236f96

Best regards,
-- 
Leo Yan <leo.yan@xxxxxxx>