linux-kernel - [PATCH V11 12/15] perf tools: add missing 'abi' member to 'struct regs

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Date:	Wed, 14 Aug 2013 15:48:34 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Jiri Olsa <jolsa@...hat.com>, Mike Galbraith <efault@....de>,
	Namhyung Kim <namhyung@...il.com>,
	Paul Mackerras <paulus@...ba.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Stephane Eranian <eranian@...gle.com>,
	Ingo Molnar <mingo@...nel.org>
Subject: [PATCH V11 12/15] perf tools: add missing 'abi' member to 'struct regs_dump'

And store the parsed value there.  Note that the 'abi' is
0 (no registers), 1 (32-bit registers) or 2 (64-bit registers),
but the registers are anyway copied one-by-one as 64-bit
values onto the event i.e. see 'perf_output_sample_regs()'

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
---
 tools/perf/util/event.h | 1 +
 tools/perf/util/evsel.c | 7 +++----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index b0921fe..6bb5d7c 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -78,6 +78,7 @@ struct sample_event {
 };
 
 struct regs_dump {
+	u64 abi;
 	u64 *regs;
 };
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 4b2819b..81c170f 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1389,13 +1389,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
 	}
 
 	if (type & PERF_SAMPLE_REGS_USER) {
-		u64 avail;
-
 		/* First u64 tells us if we have any regs in sample. */
 		OVERFLOW_CHECK_u64(array);
-		avail = *array++;
+		data->user_regs.abi = *array;
+		array++;
 
-		if (avail) {
+		if (data->user_regs.abi) {
 			u64 regs_user = evsel->attr.sample_regs_user;
 
 			sz = hweight_long(regs_user) * sizeof(u64);
-- 
1.7.11.7

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