perf annotate browser: Count the numbers of jump sources to a target

Instead of simply marking an offset as a jump target. So that we can
implement a new feature: showing "jumpy" targets, I.e. addresses that
lots of places jump to.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vc7b0u5yxgrubig0q61ayhxf@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 06367c1df720..446362677840 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -16,7 +16,7 @@ struct browser_disasm_line {
         double          percent;
         u32             idx;
         int             idx_asm;
-        bool            jump_target;
+        int             jump_sources;
 };
 
 struct annotate_browser {
@@ -98,7 +98,7 @@ static void annotate_browser__write(struct ui_browser *self, void *entry, int ro
                 if (!ab->use_offset) {
                         printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ": ", addr);
                 } else {
-                        if (bdl->jump_target) {
+                        if (bdl->jump_sources) {
                                 printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ": ",
                                                     ab->addr_width, addr);
                         } else {
@@ -707,7 +707,7 @@ static void annotate_browser__mark_jump_targets(struct annotate_browser *browser
                         continue;
 
                 bdlt = disasm_line__browser(dlt);
-                bdlt->jump_target = true;
+                ++bdlt->jump_sources;
         }
                 
 }