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