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-rw-r--r--tools/perf/util/hist.c31
1 files changed, 27 insertions, 4 deletions
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 04f3b52a319c..355b7601ddb7 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -424,21 +424,42 @@ static int hist_entry__init(struct hist_entry *he,
return 0;
}
+static void *hist_entry__zalloc(size_t size)
+{
+ return zalloc(size + sizeof(struct hist_entry));
+}
+
+static void hist_entry__free(void *ptr)
+{
+ free(ptr);
+}
+
+static struct hist_entry_ops default_ops = {
+ .new = hist_entry__zalloc,
+ .free = hist_entry__free,
+};
+
static struct hist_entry *hist_entry__new(struct hist_entry *template,
bool sample_self)
{
+ struct hist_entry_ops *ops = template->ops;
size_t callchain_size = 0;
struct hist_entry *he;
int err = 0;
+ if (!ops)
+ ops = template->ops = &default_ops;
+
if (symbol_conf.use_callchain)
callchain_size = sizeof(struct callchain_root);
- he = zalloc(sizeof(*he) + callchain_size);
+ he = ops->new(callchain_size);
if (he) {
err = hist_entry__init(he, template, sample_self);
- if (err)
- zfree(&he);
+ if (err) {
+ ops->free(he);
+ he = NULL;
+ }
}
return he;
@@ -1050,6 +1071,8 @@ hist_entry__collapse(struct hist_entry *left, struct hist_entry *right)
void hist_entry__delete(struct hist_entry *he)
{
+ struct hist_entry_ops *ops = he->ops;
+
thread__zput(he->thread);
map__zput(he->ms.map);
@@ -1074,7 +1097,7 @@ void hist_entry__delete(struct hist_entry *he)
free_callchain(he->callchain);
free(he->trace_output);
free(he->raw_data);
- free(he);
+ ops->free(he);
}
/*