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Subject[tip:perf/core] perf hists browser: Allow annotating entries in callchains
Commit-ID:  d5dbc518cd8fbc7cf54b91d5b506eb4d67e4047d
Gitweb: http://git.kernel.org/tip/d5dbc518cd8fbc7cf54b91d5b506eb4d67e4047d
Author: Arnaldo Carvalho de Melo <acme@redhat.com>
AuthorDate: Tue, 17 Mar 2015 18:27:28 -0300
Committer: Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Tue, 17 Mar 2015 18:27:28 -0300

perf hists browser: Allow annotating entries in callchains

Instead of annotating just the top level hist_entry, allow instead
annotating a map_symbol, i.e. the top level hist_entry or one of the
callchains for which there were samples.

Suggested-by: Stephane Eranian <eranian@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/n/tip-k1zxj5564je9jei4yd15ouwn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/ui/browsers/annotate.c | 8 +++++++-
tools/perf/ui/browsers/hists.c | 23 ++++++++++-------------
tools/perf/util/hist.h | 9 +++++++++
3 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 9d32e3c..e5250eb 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -829,10 +829,16 @@ out:
return key;
}

+int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
+ struct hist_browser_timer *hbt)
+{
+ return symbol__tui_annotate(ms->sym, ms->map, evsel, hbt);
+}
+
int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
struct hist_browser_timer *hbt)
{
- return symbol__tui_annotate(he->ms.sym, he->ms.map, evsel, hbt);
+ return map_symbol__tui_annotate(&he->ms, evsel, hbt);
}

static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index c37e70a..cd7350a 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1704,6 +1704,7 @@ retry_popup_menu:
if (choice == annotate || choice == annotate_t || choice == annotate_f) {
struct hist_entry *he;
struct annotation *notes;
+ struct map_symbol ms;
int err;
do_annotate:
if (!objdump_path && perf_session_env__lookup_objdump(env))
@@ -1713,25 +1714,21 @@ do_annotate:
if (he == NULL)
continue;

- /*
- * we stash the branch_info symbol + map into the
- * the ms so we don't have to rewrite all the annotation
- * code to use branch_info.
- * in branch mode, the ms struct is not used
- */
if (choice == annotate_f) {
- he->ms.sym = he->branch_info->from.sym;
- he->ms.map = he->branch_info->from.map;
- } else if (choice == annotate_t) {
- he->ms.sym = he->branch_info->to.sym;
- he->ms.map = he->branch_info->to.map;
+ ms.map = he->branch_info->from.map;
+ ms.sym = he->branch_info->from.sym;
+ } else if (choice == annotate_t) {
+ ms.map = he->branch_info->to.map;
+ ms.sym = he->branch_info->to.sym;
+ } else {
+ ms = *browser->selection;
}

- notes = symbol__annotation(he->ms.sym);
+ notes = symbol__annotation(ms.sym);
if (!notes->src)
continue;

- err = hist_entry__tui_annotate(he, evsel, hbt);
+ err = map_symbol__tui_annotate(&ms, evsel, hbt);
/*
* offer option to annotate the other branch source or target
* (if they exists) when returning from annotate
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index e988c9f..9f31b89 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -303,6 +303,9 @@ struct hist_browser_timer {

#ifdef HAVE_SLANG_SUPPORT
#include "../ui/keysyms.h"
+int map_symbol__tui_annotate(struct map_symbol *ms, struct perf_evsel *evsel,
+ struct hist_browser_timer *hbt);
+
int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
struct hist_browser_timer *hbt);

@@ -321,6 +324,12 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
{
return 0;
}
+static inline int map_symbol__tui_annotate(struct map_symbol *ms __maybe_unused,
+ struct perf_evsel *evsel __maybe_unused,
+ struct hist_browser_timer *hbt __maybe_unused)
+{
+ return 0;
+}

static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
struct perf_evsel *evsel __maybe_unused,

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