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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2022 Bytedance */
#include <test_progs.h>
#include "test_map_lookup_percpu_elem.skel.h"
void test_map_lookup_percpu_elem(void)
{
struct test_map_lookup_percpu_elem *skel;
__u64 key = 0, sum;
int ret, i, nr_cpus = libbpf_num_possible_cpus();
__u64 *buf;
buf = malloc(nr_cpus*sizeof(__u64));
if (!ASSERT_OK_PTR(buf, "malloc"))
return;
for (i = 0; i < nr_cpus; i++)
buf[i] = i;
sum = (nr_cpus - 1) * nr_cpus / 2;
skel = test_map_lookup_percpu_elem__open();
if (!ASSERT_OK_PTR(skel, "test_map_lookup_percpu_elem__open"))
goto exit;
skel->rodata->my_pid = getpid();
skel->rodata->nr_cpus = nr_cpus;
ret = test_map_lookup_percpu_elem__load(skel);
if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__load"))
goto cleanup;
ret = test_map_lookup_percpu_elem__attach(skel);
if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__attach"))
goto cleanup;
ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_array_map), &key, buf, 0);
ASSERT_OK(ret, "percpu_array_map update");
ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_hash_map), &key, buf, 0);
ASSERT_OK(ret, "percpu_hash_map update");
ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_lru_hash_map), &key, buf, 0);
ASSERT_OK(ret, "percpu_lru_hash_map update");
syscall(__NR_getuid);
test_map_lookup_percpu_elem__detach(skel);
ASSERT_EQ(skel->bss->percpu_array_elem_sum, sum, "percpu_array lookup percpu elem");
ASSERT_EQ(skel->bss->percpu_hash_elem_sum, sum, "percpu_hash lookup percpu elem");
ASSERT_EQ(skel->bss->percpu_lru_hash_elem_sum, sum, "percpu_lru_hash lookup percpu elem");
cleanup:
test_map_lookup_percpu_elem__destroy(skel);
exit:
free(buf);
}
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