linux-kernel - [PATCH 16/19] perf inject: Make sure mmap records are ordered when injecting build

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Date:	Fri,  5 Feb 2016 13:26:07 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Andi Kleen <ak@...ux.intel.com>, Carl Love <cel@...ibm.com>,
	David Ahern <dsahern@...il.com>, Jiri Olsa <jolsa@...hat.com>,
	John McCutchan <johnmccutchan@...gle.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Sonny Rao <sonnyrao@...omium.org>,
	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Subject: [PATCH 16/19] perf inject: Make sure mmap records are ordered when injecting build_ids

From: Arnaldo Carvalho de Melo <acme@...hat.com>

To make sure the mmap records are ordered correctly and so that the
correct especially due to jitted code mmaps.

We cannot generate the buildid hit list and inject the jit mmaps (will
come right after this patch) in at the same time for now.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Andi Kleen <ak@...ux.intel.com>
Cc: Carl Love <cel@...ibm.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: John McCutchan <johnmccutchan@...gle.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Pawel Moll <pawel.moll@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Sonny Rao <sonnyrao@...omium.org>
Cc: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1448874143-7269-3-git-send-email-eranian@google.com
[ Carved out from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-inject.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 0022e02ed31a..6567baedd92a 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -755,6 +755,17 @@ int cmd_inject(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (inject.session == NULL)
 		return -1;
 
+	if (inject.build_ids) {
+		/*
+		 * to make sure the mmap records are ordered correctly
+		 * and so that the correct especially due to jitted code
+		 * mmaps. We cannot generate the buildid hit list and
+		 * inject the jit mmaps at the same time for now.
+		 */
+		inject.tool.ordered_events = true;
+		inject.tool.ordering_requires_timestamps = true;
+	}
+
 	ret = symbol__init(&inject.session->header.env);
 	if (ret < 0)
 		goto out_delete;
-- 
2.5.0