evsel-roundtrip-name.c

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// SPDX-License-Identifier: GPL-2.0
#include "evlist.h"
#include "evsel.h"
#include "parse-events.h"
#include "tests.h"
#include "debug.h"
#include <errno.h>
#include <linux/kernel.h>

static int perf_evsel__roundtrip_cache_name_test(void)
{
    char name[128];
    int type, op, err = 0, ret = 0, i, idx;
    struct perf_evsel *evsel;
    struct perf_evlist *evlist = perf_evlist__new();

        if (evlist == NULL)
                return -ENOMEM;

    for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
        for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
            /* skip invalid cache type */
            if (!perf_evsel__is_cache_op_valid(type, op))
                continue;

            for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
                __perf_evsel__hw_cache_type_op_res_name(type, op, i,
                                    name, sizeof(name));
                err = parse_events(evlist, name, NULL);
                if (err)
                    ret = err;
            }
        }
    }

    idx = 0;
    evsel = perf_evlist__first(evlist);

    for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) {
        for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) {
            /* skip invalid cache type */
            if (!perf_evsel__is_cache_op_valid(type, op))
                continue;

            for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) {
                __perf_evsel__hw_cache_type_op_res_name(type, op, i,
                                    name, sizeof(name));
                if (evsel->idx != idx)
                    continue;

                ++idx;

                if (strcmp(perf_evsel__name(evsel), name)) {
                    pr_debug("%s != %s\n", perf_evsel__name(evsel), name);
                    ret = -1;
                }

                evsel = perf_evsel__next(evsel);
            }
        }
    }

    perf_evlist__delete(evlist);
    return ret;
}

static int __perf_evsel__name_array_test(const char *names[], int nr_names)
{
    int i, err;
    struct perf_evsel *evsel;
    struct perf_evlist *evlist = perf_evlist__new();

        if (evlist == NULL)
                return -ENOMEM;

    for (i = 0; i < nr_names; ++i) {
        err = parse_events(evlist, names[i], NULL);
        if (err) {
            pr_debug("failed to parse event '%s', err %d\n",
                 names[i], err);
            goto out_delete_evlist;
        }
    }

    err = 0;
    evlist__for_each_entry(evlist, evsel) {
        if (strcmp(perf_evsel__name(evsel), names[evsel->idx])) {
            --err;
            pr_debug("%s != %s\n", perf_evsel__name(evsel), names[evsel->idx]);
        }
    }

out_delete_evlist:
    perf_evlist__delete(evlist);
    return err;
}

#define perf_evsel__name_array_test(names) \
    __perf_evsel__name_array_test(names, ARRAY_SIZE(names))

int test__perf_evsel__roundtrip_name_test(struct test *test __maybe_unused, int subtest __maybe_unused)
{
    int err = 0, ret = 0;

    err = perf_evsel__name_array_test(perf_evsel__hw_names);
    if (err)
        ret = err;

    err = __perf_evsel__name_array_test(perf_evsel__sw_names,
                        PERF_COUNT_SW_DUMMY + 1);
    if (err)
        ret = err;

    err = perf_evsel__roundtrip_cache_name_test();
    if (err)
        ret = err;

    return ret;
}