Setup development environment with libbpf

external/libbpf-bootstrap/examples/c/uprobe.bpf.c

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright (c) 2020 Facebook */
+#include <linux/bpf.h>
+#include <linux/ptrace.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char LICENSE[] SEC("license") = "Dual BSD/GPL";
+
+SEC("uprobe/func")
+int BPF_KPROBE(uprobe, int a, int b)
+{
+	bpf_printk("UPROBE ENTRY: a = %d, b = %d\n", a, b);
+	return 0;
+}
+
+SEC("uretprobe/func")
+int BPF_KRETPROBE(uretprobe, int ret)
+{
+	bpf_printk("UPROBE EXIT: return = %d\n", ret);
+	return 0;
+}