56 lines
1.1 KiB
C
56 lines
1.1 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_helpers.h"
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struct {
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int type;
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int max_entries;
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int *key;
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int *value;
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} results_map SEC(".maps") = {
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.type = BPF_MAP_TYPE_ARRAY,
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.max_entries = 4,
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};
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SEC("kprobe/sys_nanosleep")
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int handle_sys_nanosleep_entry(struct pt_regs *ctx)
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{
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const int key = 0, value = 1;
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bpf_map_update_elem(&results_map, &key, &value, 0);
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return 0;
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}
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SEC("kretprobe/sys_nanosleep")
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int handle_sys_getpid_return(struct pt_regs *ctx)
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{
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const int key = 1, value = 2;
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bpf_map_update_elem(&results_map, &key, &value, 0);
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return 0;
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}
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SEC("uprobe/trigger_func")
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int handle_uprobe_entry(struct pt_regs *ctx)
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{
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const int key = 2, value = 3;
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bpf_map_update_elem(&results_map, &key, &value, 0);
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return 0;
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}
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SEC("uretprobe/trigger_func")
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int handle_uprobe_return(struct pt_regs *ctx)
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{
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const int key = 3, value = 4;
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bpf_map_update_elem(&results_map, &key, &value, 0);
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return 0;
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}
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char _license[] SEC("license") = "GPL";
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__u32 _version SEC("version") = 1;
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