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authorArnaldo Carvalho de Melo <acme@redhat.com>2011-09-14 15:54:30 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2011-09-23 14:37:54 -0300
commitaf52aafad26fe83edc3ff95d6f630c2fc98a0c4c (patch)
treead71a13f3fa386c50fc1b0f3b50b20a0b3ce4b0e
parentbe96ea8ffa788dccb1ba895cced29db6687c4911 (diff)
downloadop-kernel-dev-af52aafad26fe83edc3ff95d6f630c2fc98a0c4c.zip
op-kernel-dev-af52aafad26fe83edc3ff95d6f630c2fc98a0c4c.tar.gz
perf top: Fix userspace sample addr map offset
The 'perf top' tool came from the kernel where we had each DSO (vmlinux, modules) loaded just once at a time. But userspace may have DSOs loaded in multiple addresses (shared libraries), requiring that we use the just resolved map instead of the first one found. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> 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-ag53wz0yllpgers0n2w7hchp@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/builtin-top.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index a43433f..d28013b 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -191,7 +191,8 @@ static void __zero_source_counters(struct sym_entry *syme)
symbol__annotate_zero_histograms(sym);
}
-static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip)
+static void record_precise_ip(struct sym_entry *syme, struct map *map,
+ int counter, u64 ip)
{
struct annotation *notes;
struct symbol *sym;
@@ -205,8 +206,8 @@ static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip)
if (pthread_mutex_trylock(&notes->lock))
return;
- ip = syme->map->map_ip(syme->map, ip);
- symbol__inc_addr_samples(sym, syme->map, counter, ip);
+ ip = map->map_ip(map, ip);
+ symbol__inc_addr_samples(sym, map, counter, ip);
pthread_mutex_unlock(&notes->lock);
}
@@ -810,7 +811,7 @@ static void perf_event__process_sample(const union perf_event *event,
evsel = perf_evlist__id2evsel(top.evlist, sample->id);
assert(evsel != NULL);
syme->count[evsel->idx]++;
- record_precise_ip(syme, evsel->idx, ip);
+ record_precise_ip(syme, al.map, evsel->idx, ip);
pthread_mutex_lock(&top.active_symbols_lock);
if (list_empty(&syme->node) || !syme->node.next) {
static bool first = true;
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