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// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2017 Facebook
#include <linux/ptrace.h>
#include <linux/bpf.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include "bpf_misc.h"
int kprobe_res = 0;
int kprobe2_res = 0;
int kretprobe_res = 0;
int kretprobe2_res = 0;
int uprobe_res = 0;
int uretprobe_res = 0;
int uprobe_byname_res = 0;
int uretprobe_byname_res = 0;
int uprobe_byname2_res = 0;
int uretprobe_byname2_res = 0;
SEC("kprobe")
int handle_kprobe(struct pt_regs *ctx)
{
kprobe_res = 1;
return 0;
}
SEC("kprobe/" SYS_PREFIX "sys_nanosleep")
int BPF_KPROBE(handle_kprobe_auto)
{
kprobe2_res = 11;
return 0;
}
SEC("kretprobe")
int handle_kretprobe(struct pt_regs *ctx)
{
kretprobe_res = 2;
return 0;
}
SEC("kretprobe/" SYS_PREFIX "sys_nanosleep")
int BPF_KRETPROBE(handle_kretprobe_auto)
{
kretprobe2_res = 22;
return 0;
}
SEC("uprobe")
int handle_uprobe(struct pt_regs *ctx)
{
uprobe_res = 3;
return 0;
}
SEC("uretprobe")
int handle_uretprobe(struct pt_regs *ctx)
{
uretprobe_res = 4;
return 0;
}
SEC("uprobe")
int handle_uprobe_byname(struct pt_regs *ctx)
{
uprobe_byname_res = 5;
return 0;
}
/* use auto-attach format for section definition. */
SEC("uretprobe//proc/self/exe:trigger_func2")
int handle_uretprobe_byname(struct pt_regs *ctx)
{
uretprobe_byname_res = 6;
return 0;
}
SEC("uprobe")
int handle_uprobe_byname2(struct pt_regs *ctx)
{
unsigned int size = PT_REGS_PARM1(ctx);
/* verify malloc size */
if (size == 1)
uprobe_byname2_res = 7;
return 0;
}
SEC("uretprobe")
int handle_uretprobe_byname2(struct pt_regs *ctx)
{
uretprobe_byname2_res = 8;
return 0;
}
char _license[] SEC("license") = "GPL";
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