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#include "vmlinux.h"
#include <linux/version.h>
#include <bpf/bpf_helpers.h>
struct {
__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
__uint(key_size, sizeof(int));
__uint(value_size, sizeof(u32));
__uint(max_entries, 2);
} my_map SEC(".maps");
SEC("ksyscall/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;
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