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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) // Copyright (c) 2023 Red Hat #include "vmlinux.h" #include <bpf/bpf_tracing.h> unsigned int nr_uprobes; unsigned int nr_uretprobes; SEC("uprobe") int BPF_UPROBE(empty) { return 0; } SEC("uprobe") int BPF_UPROBE(trace_printk) { char fmt[] = "perf bench uprobe %u"; bpf_trace_printk(fmt, sizeof(fmt), ++nr_uprobes); return 0; } SEC("uretprobe") int BPF_URETPROBE(empty_ret) { return 0; } SEC("uretprobe") int BPF_URETPROBE(trace_printk_ret) { char fmt[] = "perf bench uretprobe %u"; bpf_trace_printk(fmt, sizeof(fmt), ++nr_uretprobes); return 0; } char LICENSE[] SEC("license") = "Dual BSD/GPL"; |