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