[thirdparty/linux.git] / tools / testing / selftests / bpf / progs / test_btf_nokv.c

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (c) 2018 Facebook */
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>

int _version SEC("version") = 1;

struct ipv_counts {
	unsigned int v4;
	unsigned int v6;
};

struct bpf_map_def SEC("maps") btf_map = {
	.type = BPF_MAP_TYPE_ARRAY,
	.key_size = sizeof(int),
	.value_size = sizeof(struct ipv_counts),
	.max_entries = 4,
};

__attribute__((noinline))
int test_long_fname_2(void)
{
	struct ipv_counts *counts;
	int key = 0;

	counts = bpf_map_lookup_elem(&btf_map, &key);
	if (!counts)
		return 0;

	counts->v6++;

	return 0;
}

__attribute__((noinline))
int test_long_fname_1(void)
{
	return test_long_fname_2();
}

SEC("dummy_tracepoint")
int _dummy_tracepoint(void *arg)
{
	return test_long_fname_1();
}

char _license[] SEC("license") = "GPL";
Commit	Line	Data
c0fa1b6c MKL	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	/* Copyright (c) 2018 Facebook */
	3	#include <linux/bpf.h>
3e689141	4	#include <bpf/bpf_helpers.h>
c0fa1b6c MKL	5
	6	int _version SEC("version") = 1;
	7
	8	struct ipv_counts {
	9	unsigned int v4;
	10	unsigned int v6;
	11	};
	12
	13	struct bpf_map_def SEC("maps") btf_map = {
	14	.type = BPF_MAP_TYPE_ARRAY,
	15	.key_size = sizeof(int),
	16	.value_size = sizeof(struct ipv_counts),
	17	.max_entries = 4,
	18	};
	19
999d82cb	20	__attribute__((noinline))
e1cebd84	21	int test_long_fname_2(void)
c0fa1b6c MKL	22	{
	23	struct ipv_counts *counts;
	24	int key = 0;
	25
c0fa1b6c MKL	26	counts = bpf_map_lookup_elem(&btf_map, &key);
	27	if (!counts)
	28	return 0;
	29
	30	counts->v6++;
	31
	32	return 0;
	33	}
	34
999d82cb	35	__attribute__((noinline))
e1cebd84	36	int test_long_fname_1(void)
999d82cb	37	{
e1cebd84	38	return test_long_fname_2();
999d82cb YS	39	}
	40
	41	SEC("dummy_tracepoint")
e1cebd84	42	int _dummy_tracepoint(void *arg)
999d82cb	43	{
e1cebd84	44	return test_long_fname_1();
999d82cb YS	45	}
999d82cb YS	46
c0fa1b6c	47	char _license[] SEC("license") = "GPL";