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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2017 Facebook
#include <linux/ptrace.h>
#include <linux/bpf.h>
#include "bpf_helpers.h"
struct {
__uint(type, BPF_MAP_TYPE_ARRAY);
__uint(max_entries, 4);
__type(key, int);
__type(value, int);
} results_map SEC(".maps");
SEC("kprobe/sys_nanosleep")
int handle_sys_nanosleep_entry(struct pt_regs *ctx)
{
const int key = 0, value = 1;
bpf_map_update_elem(&results_map, &key, &value, 0);
return 0;
}
SEC("kretprobe/sys_nanosleep")
int handle_sys_getpid_return(struct pt_regs *ctx)
{
const int key = 1, value = 2;
bpf_map_update_elem(&results_map, &key, &value, 0);
return 0;
}
SEC("uprobe/trigger_func")
int handle_uprobe_entry(struct pt_regs *ctx)
{
const int key = 2, value = 3;
bpf_map_update_elem(&results_map, &key, &value, 0);
return 0;
}
SEC("uretprobe/trigger_func")
int handle_uprobe_return(struct pt_regs *ctx)
{
const int key = 3, value = 4;
bpf_map_update_elem(&results_map, &key, &value, 0);
return 0;
}
char _license[] SEC("license") = "GPL";
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