1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2022, Oracle and/or its affiliates. */
3
4 #include <test_progs.h>
5 #include "test_uprobe_autoattach.skel.h"
6 #include "progs/bpf_misc.h"
7
8 /* uprobe attach point */
autoattach_trigger_func(int arg1,int arg2,int arg3,int arg4,int arg5,int arg6,int arg7,int arg8)9 static noinline int autoattach_trigger_func(int arg1, int arg2, int arg3,
10 int arg4, int arg5, int arg6,
11 int arg7, int arg8)
12 {
13 asm volatile ("");
14 return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + 1;
15 }
16
test_uprobe_autoattach(void)17 void test_uprobe_autoattach(void)
18 {
19 const char *devnull_str = "/dev/null";
20 struct test_uprobe_autoattach *skel;
21 int trigger_ret;
22 FILE *devnull;
23
24 skel = test_uprobe_autoattach__open_and_load();
25 if (!ASSERT_OK_PTR(skel, "skel_open"))
26 return;
27
28 if (!ASSERT_OK(test_uprobe_autoattach__attach(skel), "skel_attach"))
29 goto cleanup;
30
31 skel->bss->test_pid = getpid();
32
33 /* trigger & validate uprobe & uretprobe */
34 trigger_ret = autoattach_trigger_func(1, 2, 3, 4, 5, 6, 7, 8);
35
36 skel->bss->test_pid = getpid();
37
38 /* trigger & validate shared library u[ret]probes attached by name */
39 devnull = fopen(devnull_str, "r");
40
41 ASSERT_EQ(skel->bss->uprobe_byname_parm1, 1, "check_uprobe_byname_parm1");
42 ASSERT_EQ(skel->bss->uprobe_byname_ran, 1, "check_uprobe_byname_ran");
43 ASSERT_EQ(skel->bss->uretprobe_byname_rc, trigger_ret, "check_uretprobe_byname_rc");
44 ASSERT_EQ(skel->bss->uretprobe_byname_ret, trigger_ret, "check_uretprobe_byname_ret");
45 ASSERT_EQ(skel->bss->uretprobe_byname_ran, 2, "check_uretprobe_byname_ran");
46 ASSERT_EQ(skel->bss->uprobe_byname2_parm1, (__u64)(long)devnull_str,
47 "check_uprobe_byname2_parm1");
48 ASSERT_EQ(skel->bss->uprobe_byname2_ran, 3, "check_uprobe_byname2_ran");
49 ASSERT_EQ(skel->bss->uretprobe_byname2_rc, (__u64)(long)devnull,
50 "check_uretprobe_byname2_rc");
51 ASSERT_EQ(skel->bss->uretprobe_byname2_ran, 4, "check_uretprobe_byname2_ran");
52
53 ASSERT_EQ(skel->bss->a[0], 1, "arg1");
54 ASSERT_EQ(skel->bss->a[1], 2, "arg2");
55 ASSERT_EQ(skel->bss->a[2], 3, "arg3");
56 #if FUNC_REG_ARG_CNT > 3
57 ASSERT_EQ(skel->bss->a[3], 4, "arg4");
58 #endif
59 #if FUNC_REG_ARG_CNT > 4
60 ASSERT_EQ(skel->bss->a[4], 5, "arg5");
61 #endif
62 #if FUNC_REG_ARG_CNT > 5
63 ASSERT_EQ(skel->bss->a[5], 6, "arg6");
64 #endif
65 #if FUNC_REG_ARG_CNT > 6
66 ASSERT_EQ(skel->bss->a[6], 7, "arg7");
67 #endif
68 #if FUNC_REG_ARG_CNT > 7
69 ASSERT_EQ(skel->bss->a[7], 8, "arg8");
70 #endif
71
72 fclose(devnull);
73 cleanup:
74 test_uprobe_autoattach__destroy(skel);
75 }
76