| #include <linux/ptrace.h> |
| #include <linux/version.h> |
| #include <uapi/linux/bpf.h> |
| #include "bpf_helpers.h" |
| |
| struct bpf_map_def SEC("maps") my_map = { |
| .type = BPF_MAP_TYPE_PERF_EVENT_ARRAY, |
| .key_size = sizeof(int), |
| .value_size = sizeof(u32), |
| .max_entries = 2, |
| }; |
| |
| SEC("kprobe/sys_write") |
| int bpf_prog1(struct pt_regs *ctx) |
| { |
| struct S { |
| u64 pid; |
| u64 cookie; |
| } data; |
| |
| data.pid = bpf_get_current_pid_tgid(); |
| data.cookie = 0x12345678; |
| |
| bpf_perf_event_output(ctx, &my_map, 0, &data, sizeof(data)); |
| |
| return 0; |
| } |
| |
| char _license[] SEC("license") = "GPL"; |
| u32 _version SEC("version") = LINUX_VERSION_CODE; |
