lkml.org 
[lkml]   [2016]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[tip:perf/core] perf inject: Make sure mmap records are ordered when injecting build_ids
Commit-ID:  921f3fadbc48c7c3799b415b895297cd476cf7f1
Gitweb: http://git.kernel.org/tip/921f3fadbc48c7c3799b415b895297cd476cf7f1
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Fri, 22 Jan 2016 18:41:00 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 5 Feb 2016 09:46:45 -0300

perf inject: Make sure mmap records are ordered when injecting 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 (will
come right after this patch) in at the same time for now.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Carl Love <cel@us.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John McCutchan <johnmccutchan@google.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sonny Rao <sonnyrao@chromium.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.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@redhat.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 0022e02..6567bae 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;
\
 
 \ /
  Last update: 2016-02-09 13:41    [W:0.087 / U:3.904 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site