Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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
10#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
11bool skip __attribute((__section__(".data"))) = false;
12#else
13bool skip = true;
14#endif
15
16void bpf_testmod_ops3_call_test_2(void) __ksym;
17
18int val_i, val_j;
19
20__noinline static int subprog2(int *a, int *b)
21{
22 return val_i + a[10] + b[20];
23}
24
25__noinline static int subprog1(int *a)
26{
27 /* stack size 200 bytes */
28 int b[50] = {};
29
30 b[20] = 2;
31 return subprog2(a, b);
32}
33
34
35SEC("struct_ops")
36int BPF_PROG(test_1)
37{
38 /* stack size 400 bytes */
39 int a[100] = {};
40
41 a[10] = 1;
42 val_i = subprog1(a);
43 bpf_testmod_ops3_call_test_2();
44 return 0;
45}
46
47SEC("struct_ops")
48int BPF_PROG(test_2)
49{
50 /* stack size 200 bytes */
51 int a[50] = {};
52
53 a[10] = 3;
54 val_j = subprog1(a);
55 return 0;
56}
57
58SEC(".struct_ops")
59struct bpf_testmod_ops3 testmod_1 = {
60 .test_1 = (void *)test_1,
61 .test_2 = (void *)test_2,
62};