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#include <linux/bpf.h>
3#include <bpf/bpf_helpers.h>
4#include <bpf/bpf_tracing.h>
5#include <stdbool.h>
6#include "bpf_kfuncs.h"
7#include "bpf_misc.h"
8
9char _license[] SEC("license") = "GPL";
10
11__u64 uprobe_session_result[3] = {};
12int pid = 0;
13
14static int uprobe_multi_check(void *ctx, int idx)
15{
16 if (bpf_get_current_pid_tgid() >> 32 != pid)
17 return 1;
18
19 uprobe_session_result[idx]++;
20
21 /* only consumer 1 executes return probe */
22 if (idx == 0 || idx == 2)
23 return 1;
24
25 return 0;
26}
27
28SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
29int uprobe_0(struct pt_regs *ctx)
30{
31 return uprobe_multi_check(ctx, 0);
32}
33
34SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
35int uprobe_1(struct pt_regs *ctx)
36{
37 return uprobe_multi_check(ctx, 1);
38}
39
40SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
41int uprobe_2(struct pt_regs *ctx)
42{
43 return uprobe_multi_check(ctx, 2);
44}