59 lines · c
1// SPDX-License-Identifier: GPL-2.02/* Copyright (c) 2022 Bytedance */3 4#include <test_progs.h>5#include "test_map_lookup_percpu_elem.skel.h"6 7void test_map_lookup_percpu_elem(void)8{9 struct test_map_lookup_percpu_elem *skel;10 __u64 key = 0, sum;11 int ret, i, nr_cpus = libbpf_num_possible_cpus();12 __u64 *buf;13 14 buf = malloc(nr_cpus*sizeof(__u64));15 if (!ASSERT_OK_PTR(buf, "malloc"))16 return;17 18 for (i = 0; i < nr_cpus; i++)19 buf[i] = i;20 sum = (nr_cpus - 1) * nr_cpus / 2;21 22 skel = test_map_lookup_percpu_elem__open();23 if (!ASSERT_OK_PTR(skel, "test_map_lookup_percpu_elem__open"))24 goto exit;25 26 skel->rodata->my_pid = getpid();27 skel->rodata->nr_cpus = nr_cpus;28 29 ret = test_map_lookup_percpu_elem__load(skel);30 if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__load"))31 goto cleanup;32 33 ret = test_map_lookup_percpu_elem__attach(skel);34 if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__attach"))35 goto cleanup;36 37 ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_array_map), &key, buf, 0);38 ASSERT_OK(ret, "percpu_array_map update");39 40 ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_hash_map), &key, buf, 0);41 ASSERT_OK(ret, "percpu_hash_map update");42 43 ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_lru_hash_map), &key, buf, 0);44 ASSERT_OK(ret, "percpu_lru_hash_map update");45 46 syscall(__NR_getuid);47 48 test_map_lookup_percpu_elem__detach(skel);49 50 ASSERT_EQ(skel->bss->percpu_array_elem_sum, sum, "percpu_array lookup percpu elem");51 ASSERT_EQ(skel->bss->percpu_hash_elem_sum, sum, "percpu_hash lookup percpu elem");52 ASSERT_EQ(skel->bss->percpu_lru_hash_elem_sum, sum, "percpu_lru_hash lookup percpu elem");53 54cleanup:55 test_map_lookup_percpu_elem__destroy(skel);56exit:57 free(buf);58}59