libbpf-rs 0.23.3

libbpf-rs is a safe, idiomatic, and opinionated wrapper around libbpf-sys
Documentation 
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// SPDX-License-Identifier: GPL-2.0

#include "vmlinux.h"
#include <bpf/bpf_helpers.h>

struct {
  __uint(type, BPF_MAP_TYPE_RINGBUF);
  __uint(max_entries, 4096 /* one page */);
} ringbuf SEC(".maps");

SEC("ksyscall/kill")
int handle__ksyscall(pid_t pid, int sig) {
  int *value;

  value = bpf_ringbuf_reserve(&ringbuf, sizeof(int), 0);
  if (value) {
    *value = 1;
    bpf_ringbuf_submit(value, 0);
  }

  return 0;
}

char LICENSE[] SEC("license") = "GPL";