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perf annotate: Introduce constructor/destructor for annotated_source 

More stuff will go in there, all the parts that are not needed when a
symbol had no samples and that were mistakenly added to 'struct
annotation'.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-u4761kyzhixw9ydk6kib3f0o@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2018-05-24 16:01:31 -03:00
parent 116c626b9a
commit ca39650309
1 changed files with 22 additions and 3 deletions
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25
tools/perf/util/annotate.c
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@ -678,6 +678,25 @@ static struct arch *arch__find(const char *name)
return bsearch(name, architectures, nmemb, sizeof(struct arch), arch__key_cmp);
}
static struct annotated_source *annotated_source__new(void)
{
struct annotated_source *src = zalloc(sizeof(*src));
if (src != NULL)
INIT_LIST_HEAD(&src->source);
return src;
}
static void annotated_source__delete(struct annotated_source *src)
{
if (src == NULL)
return;
zfree(&src->histograms);
zfree(&src->cycles_hist);
free(src);
}
int symbol__alloc_hist(struct symbol *sym)
{
struct annotation *notes = symbol__annotation(sym);
@ -704,17 +723,17 @@ int symbol__alloc_hist(struct symbol *sym)
if (sizeof_sym_hist > SIZE_MAX / symbol_conf.nr_events)
return -1;
notes->src = zalloc(sizeof(*notes->src));
notes->src = annotated_source__new();
if (notes->src == NULL)
return -1;
notes->src->histograms = calloc(symbol_conf.nr_events, sizeof_sym_hist);
if (notes->src->histograms == NULL) {
zfree(&notes->src);
annotated_source__delete(notes->src);
notes->src = NULL;
return -1;
}
notes->src->sizeof_sym_hist = sizeof_sym_hist;
notes->src->nr_histograms = symbol_conf.nr_events;
INIT_LIST_HEAD(&notes->src->source);
return 0;
}