linux-kernel - [PATCH v13 13/14] perf, tools: Handle header line in mapfile

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Date:	Tue,  2 Jun 2015 10:12:13 -0700
From:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
To:	mingo@...hat.com, ak@...ux.intel.com,
	Michael Ellerman <mpe@...erman.id.au>,
	Jiri Olsa <jolsa@...hat.com>,
	Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:	namhyung@...nel.org, linuxppc-dev@...ts.ozlabs.org,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH v13 13/14] perf, tools: Handle header line in mapfile

From: Andi Kleen <ak@...ux.intel.com>

Support a header line in the mapfile.csv, to match the existing
mapfiles

Signed-off-by: Andi Kleen <ak@...ux.intel.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>

Changelog[v2]
	All architectures may not use the "Family" to identify. So,
	assume first line is header.
---
 tools/perf/pmu-events/jevents.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 14707fb..8d365f2 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -461,7 +461,12 @@ static int process_mapfile(FILE *outfp, char *fpath)
 
 	print_mapping_table_prefix(outfp);
 
-	line_num = 0;
+	/* Skip first line (header) */
+	p = fgets(line, n, mapfp);
+	if (!p)
+		goto out;
+
+	line_num = 1;
 	while (1) {
 		char *cpuid, *version, *type, *fname;
 
@@ -505,8 +510,8 @@ static int process_mapfile(FILE *outfp, char *fpath)
 		fprintf(outfp, "},\n");
 	}
 
+out:
 	print_mapping_table_suffix(outfp);
-
 	return 0;
 }
 
-- 
1.7.9.5

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