brintos

brintos / linux-shallow public Read only

0
0
Text · 589 B · 565a73b Raw
30 lines · c
1#include "vmlinux.h"2#include <linux/version.h>3#include <bpf/bpf_helpers.h>4 5struct {6	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);7	__uint(key_size, sizeof(int));8	__uint(value_size, sizeof(u32));9	__uint(max_entries, 2);10} my_map SEC(".maps");11 12SEC("ksyscall/write")13int bpf_prog1(struct pt_regs *ctx)14{15	struct S {16		u64 pid;17		u64 cookie;18	} data;19 20	data.pid = bpf_get_current_pid_tgid();21	data.cookie = 0x12345678;22 23	bpf_perf_event_output(ctx, &my_map, 0, &data, sizeof(data));24 25	return 0;26}27 28char _license[] SEC("license") = "GPL";29u32 _version SEC("version") = LINUX_VERSION_CODE;30