File: test_btf_nokv.c

package info (click to toggle)
linux 5.10.13-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,182,916 kB
  • sloc: ansic: 19,488,074; asm: 263,676; sh: 73,873; makefile: 44,685; perl: 34,640; python: 32,386; cpp: 6,070; yacc: 4,755; lex: 2,742; awk: 1,214; ruby: 25; sed: 5
file content (47 lines) | stat: -rw-r--r-- 805 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/* 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";