Commit-ID: 96b40f3c05f36e061fd4dde920b9e9c795a88b69
Gitweb: http://git.kernel.org/tip/96b40f3c05f36e061fd4dde920b9e9c795a88b69
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Fri, 25 Sep 2015 16:15:47 +0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 28 Sep 2015 17:06:16 -0300
perf hists: Allow for max_stack greater than PERF_MAX_STACK_DEPTH
Use the max_stack value instead of PERF_MAX_STACK_DEPTH so that
arbitrary-sized callchains can be supported.
Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1443186956-18718-17-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/util/hist.c | 6 ++++--
tools/perf/util/hist.h | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index b3567a2..0cad9e0 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -695,7 +695,7 @@ iter_finish_normal_entry(struct hist_entry_iter *iter,
}
static int
-iter_prepare_cumulative_entry(struct hist_entry_iter *iter __maybe_unused,
+iter_prepare_cumulative_entry(struct hist_entry_iter *iter,
struct addr_location *al __maybe_unused)
{
struct hist_entry **he_cache;
@@ -707,7 +707,7 @@ iter_prepare_cumulative_entry(struct hist_entry_iter *iter __maybe_unused,
* cumulated only one time to prevent entries more than 100%
* overhead.
*/
- he_cache = malloc(sizeof(*he_cache) * (PERF_MAX_STACK_DEPTH + 1));
+ he_cache = malloc(sizeof(*he_cache) * (iter->max_stack + 1));
if (he_cache == NULL)
return -ENOMEM;
@@ -868,6 +868,8 @@ int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al,
if (err)
return err;
+ iter->max_stack = max_stack_depth;
+
err = iter->ops->prepare_entry(iter, al);
if (err)
goto out;
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 4d6aa1d..8c20a8f 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -90,6 +90,7 @@ struct hist_entry_iter {
int curr;
bool hide_unresolved;
+ int max_stack;
struct perf_evsel *evsel;
struct perf_sample *sample;
--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
|