80 lines
1.4 KiB
C
80 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2017 Facebook
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#include <linux/ptrace.h>
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#include <linux/bpf.h>
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#include <bpf/bpf_helpers.h>
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#include <bpf/bpf_tracing.h>
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int kprobe_res = 0;
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int kretprobe_res = 0;
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int uprobe_res = 0;
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int uretprobe_res = 0;
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int uprobe_byname_res = 0;
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int uretprobe_byname_res = 0;
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int uprobe_byname2_res = 0;
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int uretprobe_byname2_res = 0;
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SEC("kprobe/sys_nanosleep")
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int handle_kprobe(struct pt_regs *ctx)
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{
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kprobe_res = 1;
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return 0;
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}
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SEC("kretprobe/sys_nanosleep")
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int BPF_KRETPROBE(handle_kretprobe)
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{
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kretprobe_res = 2;
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return 0;
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}
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SEC("uprobe")
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int handle_uprobe(struct pt_regs *ctx)
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{
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uprobe_res = 3;
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return 0;
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}
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SEC("uretprobe")
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int handle_uretprobe(struct pt_regs *ctx)
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{
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uretprobe_res = 4;
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return 0;
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}
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SEC("uprobe")
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int handle_uprobe_byname(struct pt_regs *ctx)
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{
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uprobe_byname_res = 5;
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return 0;
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}
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/* use auto-attach format for section definition. */
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SEC("uretprobe//proc/self/exe:trigger_func2")
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int handle_uretprobe_byname(struct pt_regs *ctx)
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{
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uretprobe_byname_res = 6;
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return 0;
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}
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SEC("uprobe")
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int handle_uprobe_byname2(struct pt_regs *ctx)
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{
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unsigned int size = PT_REGS_PARM1(ctx);
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/* verify malloc size */
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if (size == 1)
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uprobe_byname2_res = 7;
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return 0;
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}
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SEC("uretprobe")
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int handle_uretprobe_byname2(struct pt_regs *ctx)
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{
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uretprobe_byname2_res = 8;
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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