[tip:perf/core] perf top: Fix crash when annotating symbol

[tip:perf/core] perf top: Fix crash when annotating symbol

[tip-bot for Jiri Olsa]

Commit-ID:  a7eec4c677fe60c8760fa9054b578c743ff6a3ec
Gitweb:     https://git.kernel.org/tip/a7eec4c677fe60c8760fa9054b578c743ff6a3ec
Author:     Jiri Olsa <jolsa@kernel.org>
AuthorDate: Wed, 15 Nov 2017 11:53:21 +0100
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 17 Nov 2017 12:16:24 -0300

perf top: Fix crash when annotating symbol

Ravi reported crash in perf top --stdio when annotating a function [1].
The issue was, that we don't pass evsel pointer into symbol__annotate()
function, which got over looked in the last annotation changes.

[1] https://marc.info/?l=linux-kernel&m=151060884412702&w=2

Committer note:

This fixes the crash, but makes it stumble into another bug, double
locking the annotation data structures, that is in turn fixed by the
next patch in this series.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-6eol035redpoqvxqnuiqudtc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-top.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index a29a983..0077724 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -99,6 +99,7 @@ static void perf_top__resize(struct perf_top *top)
 
 static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
 {
+	struct perf_evsel *evsel = hists_to_evsel(he->hists);
 	struct symbol *sym;
 	struct annotation *notes;
 	struct map *map;
@@ -137,7 +138,7 @@ static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
 		return err;
 	}
 
-	err = symbol__annotate(sym, map, NULL, 0, NULL, NULL);
+	err = symbol__annotate(sym, map, evsel, 0, NULL, NULL);
 	if (err == 0) {
 out_assign:
 		top->sym_filter_entry = he;