From 0a269a6bb3f86abb218b8632f13c4ecd9b6b92af Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Tue, 5 Jul 2016 08:56:03 +0200 Subject: [PATCH] perf hists: Introduce hist_entry__init function Move the 'struct hist_entry' initialization code to a separate function. It'll be useful and more clear for the following patches that introduce allocation callbacks. Releasing the hist_entry object in hist_entry__new function (where it's allocated) rather than in hist_entry__init. Signed-off-by: Jiri Olsa Cc: David Ahern Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1467701765-26194-2-git-send-email-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/hist.c | 139 ++++++++++++++++++++++++++----------------------- 1 file changed, 73 insertions(+), 66 deletions(-) diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c index e1fcc8d..04f3b52 100644 --- a/tools/perf/util/hist.c +++ b/tools/perf/util/hist.c @@ -352,86 +352,93 @@ void hists__delete_entries(struct hists *hists) * histogram, sorted on item, collects periods */ -static struct hist_entry *hist_entry__new(struct hist_entry *template, - bool sample_self) -{ - size_t callchain_size = 0; - struct hist_entry *he; +static int hist_entry__init(struct hist_entry *he, + struct hist_entry *template, + bool sample_self) +{ + *he = *template; + + if (symbol_conf.cumulate_callchain) { + he->stat_acc = malloc(sizeof(he->stat)); + if (he->stat_acc == NULL) + return -ENOMEM; + memcpy(he->stat_acc, &he->stat, sizeof(he->stat)); + if (!sample_self) + memset(&he->stat, 0, sizeof(he->stat)); + } - if (symbol_conf.use_callchain) - callchain_size = sizeof(struct callchain_root); + map__get(he->ms.map); - he = zalloc(sizeof(*he) + callchain_size); + if (he->branch_info) { + /* + * This branch info is (a part of) allocated from + * sample__resolve_bstack() and will be freed after + * adding new entries. So we need to save a copy. + */ + he->branch_info = malloc(sizeof(*he->branch_info)); + if (he->branch_info == NULL) { + map__zput(he->ms.map); + free(he->stat_acc); + return -ENOMEM; + } - if (he != NULL) { - *he = *template; + memcpy(he->branch_info, template->branch_info, + sizeof(*he->branch_info)); - if (symbol_conf.cumulate_callchain) { - he->stat_acc = malloc(sizeof(he->stat)); - if (he->stat_acc == NULL) { - free(he); - return NULL; - } - memcpy(he->stat_acc, &he->stat, sizeof(he->stat)); - if (!sample_self) - memset(&he->stat, 0, sizeof(he->stat)); - } + map__get(he->branch_info->from.map); + map__get(he->branch_info->to.map); + } - map__get(he->ms.map); + if (he->mem_info) { + map__get(he->mem_info->iaddr.map); + map__get(he->mem_info->daddr.map); + } - if (he->branch_info) { - /* - * This branch info is (a part of) allocated from - * sample__resolve_bstack() and will be freed after - * adding new entries. So we need to save a copy. - */ - he->branch_info = malloc(sizeof(*he->branch_info)); - if (he->branch_info == NULL) { - map__zput(he->ms.map); - free(he->stat_acc); - free(he); - return NULL; - } + if (symbol_conf.use_callchain) + callchain_init(he->callchain); - memcpy(he->branch_info, template->branch_info, - sizeof(*he->branch_info)); + if (he->raw_data) { + he->raw_data = memdup(he->raw_data, he->raw_size); - map__get(he->branch_info->from.map); - map__get(he->branch_info->to.map); + if (he->raw_data == NULL) { + map__put(he->ms.map); + if (he->branch_info) { + map__put(he->branch_info->from.map); + map__put(he->branch_info->to.map); + free(he->branch_info); + } + if (he->mem_info) { + map__put(he->mem_info->iaddr.map); + map__put(he->mem_info->daddr.map); + } + free(he->stat_acc); + return -ENOMEM; } + } + INIT_LIST_HEAD(&he->pairs.node); + thread__get(he->thread); - if (he->mem_info) { - map__get(he->mem_info->iaddr.map); - map__get(he->mem_info->daddr.map); - } + if (!symbol_conf.report_hierarchy) + he->leaf = true; - if (symbol_conf.use_callchain) - callchain_init(he->callchain); + return 0; +} - if (he->raw_data) { - he->raw_data = memdup(he->raw_data, he->raw_size); +static struct hist_entry *hist_entry__new(struct hist_entry *template, + bool sample_self) +{ + size_t callchain_size = 0; + struct hist_entry *he; + int err = 0; - if (he->raw_data == NULL) { - map__put(he->ms.map); - if (he->branch_info) { - map__put(he->branch_info->from.map); - map__put(he->branch_info->to.map); - free(he->branch_info); - } - if (he->mem_info) { - map__put(he->mem_info->iaddr.map); - map__put(he->mem_info->daddr.map); - } - free(he->stat_acc); - free(he); - return NULL; - } - } - INIT_LIST_HEAD(&he->pairs.node); - thread__get(he->thread); + if (symbol_conf.use_callchain) + callchain_size = sizeof(struct callchain_root); - if (!symbol_conf.report_hierarchy) - he->leaf = true; + he = zalloc(sizeof(*he) + callchain_size); + if (he) { + err = hist_entry__init(he, template, sample_self); + if (err) + zfree(&he); } return he; -- 2.7.4