From: Kan Liang <kan.li...@intel.com>

Add backpointer to perf_env in evlist, so we can easily access env when
processing something where we have a evsel or evlist.

Suggested-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Kan Liang <kan.li...@intel.com>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <a.p.zijls...@chello.nl>
Cc: Stephane Eranian <eran...@google.com>
Link: 
http://lkml.kernel.org/r/1440755289-30939-5-git-send-email-kan.li...@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
---
 tools/perf/util/evlist.h | 1 +
 tools/perf/util/header.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 436e358300b1..b39a6198f4ac 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -56,6 +56,7 @@ struct perf_evlist {
        struct cpu_map    *cpus;
        struct perf_evsel *selected;
        struct events_stats stats;
+       struct perf_env *env;
 };
 
 struct perf_evsel_str_handler {
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 179b2bdd157d..41814547da15 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2514,6 +2514,7 @@ int perf_session__read_header(struct perf_session 
*session)
        if (session->evlist == NULL)
                return -ENOMEM;
 
+       session->evlist->env = &header->env;
        if (perf_data_file__is_pipe(file))
                return perf_header__read_pipe(session);
 
-- 
2.1.0

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