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perf tools: Fix calloc() arguments to address error introduced in gcc-14

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the definition of calloc is as follows:

    void *calloc(size_t nmemb, size_t size);

number of members is in the first parameter and the size is in the
second parameter.

Fix error messages on gcc 14 20240102:

  error: 'calloc' sizes specified with 'sizeof' in the earlier argument and
  not in the later argument [-Werror=calloc-transposed-args]

Committer notes:

I noticed this on fedora 40 and rawhide.

Signed-off-by: Sun Haiyong <sunhaiyong@loongson.cn>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240106094129.3337057-1-siyanteng@loongson.cn
Signed-off-by: Yanteng Si <siyanteng@loongson.cn>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Sun Haiyong 2024-01-06 17:41:29 +08:00 committed by Arnaldo Carvalho de Melo
parent 79baac8acf
commit 7bbe8f0071
4 changed files with 7 additions and 7 deletions
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4
tools/perf/builtin-record.c
View File

@ -4080,8 +4080,8 @@ int cmd_record(int argc, const char **argv)
}
if (rec->switch_output.num_files) {
rec->switch_output.filenames = calloc(sizeof(char *),
rec->switch_output.num_files);
rec->switch_output.filenames = calloc(rec->switch_output.num_files,
sizeof(char *));
if (!rec->switch_output.filenames) {
err = -EINVAL;
goto out_opts;

4
tools/perf/util/hist.c
View File

@ -491,8 +491,8 @@ static int hist_entry__init(struct hist_entry *he,
}
if (symbol_conf.res_sample) {
he->res_samples = calloc(sizeof(struct res_sample),
symbol_conf.res_sample);
he->res_samples = calloc(symbol_conf.res_sample,
sizeof(struct res_sample));
if (!he->res_samples)
goto err_srcline;
}

2
tools/perf/util/metricgroup.c
View File

@ -286,7 +286,7 @@ static int setup_metric_events(const char *pmu, struct hashmap *ids,
*out_metric_events = NULL;
ids_size = hashmap__size(ids);
metric_events = calloc(sizeof(void *), ids_size + 1);
metric_events = calloc(ids_size + 1, sizeof(void *));
if (!metric_events)
return -ENOMEM;

4
tools/perf/util/synthetic-events.c
View File

@ -1055,11 +1055,11 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
if (thread_nr > n)
thread_nr = n;
synthesize_threads = calloc(sizeof(pthread_t), thread_nr);
synthesize_threads = calloc(thread_nr, sizeof(pthread_t));
if (synthesize_threads == NULL)
goto free_dirent;
args = calloc(sizeof(*args), thread_nr);
args = calloc(thread_nr, sizeof(*args));
if (args == NULL)
goto free_threads;