Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2
3#include <vmlinux.h>
4#include <bpf/bpf_helpers.h>
5#include <bpf/bpf_tracing.h>
6#include "../test_kmods/bpf_testmod.h"
7
8char _license[] SEC("license") = "GPL";
9
10void bpf_testmod_ops3_call_test_1(void) __ksym;
11
12int val_i, val_j;
13
14__noinline static int subprog2(int *a, int *b)
15{
16 return val_i + a[1] + b[20];
17}
18
19__noinline static int subprog1(int *a)
20{
21 /* stack size 400 bytes */
22 int b[100] = {};
23
24 b[20] = 2;
25 return subprog2(a, b);
26}
27
28
29SEC("struct_ops")
30int BPF_PROG(test_1)
31{
32 /* stack size 20 bytes */
33 int a[5] = {};
34
35 a[1] = 1;
36 val_j += subprog1(a);
37 bpf_testmod_ops3_call_test_1();
38 return 0;
39}
40
41SEC(".struct_ops")
42struct bpf_testmod_ops3 testmod_1 = {
43 .test_1 = (void *)test_1,
44};