From: Namhyung Kim <namhyung@kernel.org>
Date: Tue, 2 Dec 2025 23:01:31 +0000 (-0800)
Subject: perf tools: Remove a trailing newline in the event terms
X-Git-Tag: v6.19-rc1~61^2~62
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=441863ae3de61dd813049a120e5656df2e210a4b;p=thirdparty%2Fkernel%2Flinux.git

perf tools: Remove a trailing newline in the event terms

So that it can show the correct encoding info in the JSON output.

  $ perf list -j hw
  [
  {
          "Unit": "cpu",
          "Topic": "legacy hardware",
          "EventName": "branch-instructions",
          "EventType": "Kernel PMU event",
          "BriefDescription": "Retired branch instructions [This event is an alias of branches]",
          "Encoding": "cpu/event=0xc4/"
  },
  ...

Reviewed-by: Ian Rogers <irogers@google.com>
Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---

diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 1b7c712d8f990..956ea273c2c78 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -645,6 +645,8 @@ static int perf_pmu__new_alias(struct perf_pmu *pmu, const char *name,
 			pr_err("Failed to read alias %s\n", name);
 			return ret;
 		}
+		if (line_len >= 1 && alias->terms[line_len - 1] == '\n')
+			alias->terms[line_len - 1] = '\0';
 	}
 	alias->name = strdup(name);
 	alias->desc = desc ? strdup(desc) : NULL;