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

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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 <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-05-12 13:40:52 -03:00
commit 7d5b12f5a0
1 changed files with 3 additions and 3 deletions
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6
tools/perf/ui/browsers/annotate.c
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@ -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;
}
}