Commit | Line | Data |
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39111695 AS |
1 | #include <linux/ptrace.h> |
2 | #include <linux/version.h> | |
3 | #include <uapi/linux/bpf.h> | |
4 | #include "bpf_helpers.h" | |
5 | ||
6 | struct bpf_map_def SEC("maps") my_map = { | |
7 | .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, | |
8 | .key_size = sizeof(int), | |
9 | .value_size = sizeof(u32), | |
10 | .max_entries = 2, | |
11 | }; | |
12 | ||
13 | SEC("kprobe/sys_write") | |
14 | int bpf_prog1(struct pt_regs *ctx) | |
15 | { | |
16 | struct S { | |
17 | u64 pid; | |
18 | u64 cookie; | |
19 | } data; | |
20 | ||
39111695 AS |
21 | data.pid = bpf_get_current_pid_tgid(); |
22 | data.cookie = 0x12345678; | |
23 | ||
24 | bpf_perf_event_output(ctx, &my_map, 0, &data, sizeof(data)); | |
25 | ||
26 | return 0; | |
27 | } | |
28 | ||
29 | char _license[] SEC("license") = "GPL"; | |
30 | u32 _version SEC("version") = LINUX_VERSION_CODE; |