1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2022, Oracle and/or its affiliates. */
#include "vmlinux.h"
#include <bpf/bpf_core_read.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
int uprobe_byname_parm1 = 0;
int uprobe_byname_ran = 0;
int uretprobe_byname_rc = 0;
int uretprobe_byname_ran = 0;
size_t uprobe_byname2_parm1 = 0;
int uprobe_byname2_ran = 0;
char *uretprobe_byname2_rc = NULL;
int uretprobe_byname2_ran = 0;
int test_pid;
/* This program cannot auto-attach, but that should not stop other
* programs from attaching.
*/
SEC("uprobe")
int handle_uprobe_noautoattach(struct pt_regs *ctx)
{
return 0;
}
SEC("uprobe//proc/self/exe:autoattach_trigger_func")
int handle_uprobe_byname(struct pt_regs *ctx)
{
uprobe_byname_parm1 = PT_REGS_PARM1_CORE(ctx);
uprobe_byname_ran = 1;
return 0;
}
SEC("uretprobe//proc/self/exe:autoattach_trigger_func")
int handle_uretprobe_byname(struct pt_regs *ctx)
{
uretprobe_byname_rc = PT_REGS_RC_CORE(ctx);
uretprobe_byname_ran = 2;
return 0;
}
SEC("uprobe/libc.so.6:malloc")
int handle_uprobe_byname2(struct pt_regs *ctx)
{
int pid = bpf_get_current_pid_tgid() >> 32;
/* ignore irrelevant invocations */
if (test_pid != pid)
return 0;
uprobe_byname2_parm1 = PT_REGS_PARM1_CORE(ctx);
uprobe_byname2_ran = 3;
return 0;
}
SEC("uretprobe/libc.so.6:malloc")
int handle_uretprobe_byname2(struct pt_regs *ctx)
{
int pid = bpf_get_current_pid_tgid() >> 32;
/* ignore irrelevant invocations */
if (test_pid != pid)
return 0;
uretprobe_byname2_rc = (char *)PT_REGS_RC_CORE(ctx);
uretprobe_byname2_ran = 4;
return 0;
}
char _license[] SEC("license") = "GPL";
|
