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| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-09-25 16:15:47 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-28 17:06:16 -0300 |
| commit | 96b40f3c05f36e061fd4dde920b9e9c795a88b69 (patch) | |
| tree | 934eae381b04ba7c983948aecd473e348eee9bdd | |
| parent | 188bb5e2ce112463428994f91291e5df6fc05521 (diff) | |
| download | op-kernel-dev-96b40f3c05f36e061fd4dde920b9e9c795a88b69.zip op-kernel-dev-96b40f3c05f36e061fd4dde920b9e9c795a88b69.tar.gz | |
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@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-17-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/util/hist.c | 6 | ||||
| -rw-r--r-- | 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; |
