[tip:perf/core] perf env: Read msr pmu type from header

[tip-bot for Kan Liang <tipbot@zytor.com>]

Commit-ID:  e0838e029f4f6f271d6172b18f5473558ebdea1b
Gitweb:     http://git.kernel.org/tip/e0838e029f4f6f271d6172b18f5473558ebdea1b
Author:     Kan Liang <kan.liang@intel.com>
AuthorDate: Thu, 10 Sep 2015 11:03:05 -0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 14 Sep 2015 12:50:24 -0300

perf env: Read msr pmu type from header

Get msr pmu type when processing pmu_mappings

Signed-off-by: Kan Liang <kan.liang@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/n/tip-3ngei63gepydwxhvytl2wx89@git.kernel.org
[ Fixed it up wrt moving perf_env from header.h ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/env.h    | 1 +
 tools/perf/util/header.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index 70124d9..d0d1a96 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -16,6 +16,7 @@ struct perf_env {
 	char			*cpu_desc;
 	char			*cpuid;
 	unsigned long long	total_mem;
+	unsigned int		msr_pmu_type;
 
 	int			nr_cmdline;
 	int			nr_sibling_cores;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 151b831..f307b17 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1787,6 +1787,9 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
 		/* include a NULL character at the end */
 		strbuf_add(&sb, "", 1);
 
+		if (!strcmp(name, "msr"))
+			ph->env.msr_pmu_type = type;
+
 		free(name);
 		pmu_num--;
 	}