1 // SPDX-License-Identifier: GPL-2.0
2 #include <stdbool.h>
3 #include <stdlib.h>
4 #include <string.h>
5 #include "tests.h"
6 #include "dso.h"
7 #include "debug.h"
8 #include "event.h"
9 
test(const char * path,bool alloc_name,bool kmod,int comp,const char * name)10 static int test(const char *path, bool alloc_name, bool kmod,
11 		int comp, const char *name)
12 {
13 	struct kmod_path m;
14 
15 	memset(&m, 0x0, sizeof(m));
16 
17 	TEST_ASSERT_VAL("kmod_path__parse",
18 			!__kmod_path__parse(&m, path, alloc_name));
19 
20 	pr_debug("%s - alloc name %d, kmod %d, comp %d, name '%s'\n",
21 		 path, alloc_name, m.kmod, m.comp, m.name);
22 
23 	TEST_ASSERT_VAL("wrong kmod", m.kmod == kmod);
24 	TEST_ASSERT_VAL("wrong comp", m.comp == comp);
25 
26 	if (name)
27 		TEST_ASSERT_VAL("wrong name", m.name && !strcmp(name, m.name));
28 	else
29 		TEST_ASSERT_VAL("wrong name", !m.name);
30 
31 	free(m.name);
32 	return 0;
33 }
34 
test_is_kernel_module(const char * path,int cpumode,bool expect)35 static int test_is_kernel_module(const char *path, int cpumode, bool expect)
36 {
37 	TEST_ASSERT_VAL("is_kernel_module",
38 			(!!is_kernel_module(path, cpumode)) == (!!expect));
39 	pr_debug("%s (cpumode: %d) - is_kernel_module: %s\n",
40 			path, cpumode, expect ? "true" : "false");
41 	return 0;
42 }
43 
44 #define T(path, an, k, c, n) \
45 	TEST_ASSERT_VAL("failed", !test(path, an, k, c, n))
46 
47 #define M(path, c, e) \
48 	TEST_ASSERT_VAL("failed", !test_is_kernel_module(path, c, e))
49 
test__kmod_path__parse(struct test_suite * t __maybe_unused,int subtest __maybe_unused)50 static int test__kmod_path__parse(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
51 {
52 	/* path                alloc_name  kmod  comp   name   */
53 	T("/xxxx/xxxx/x-x.ko", true      , true, 0    , "[x_x]");
54 	T("/xxxx/xxxx/x-x.ko", false     , true, 0    , NULL   );
55 	T("/xxxx/xxxx/x-x.ko", true      , true, 0    , "[x_x]");
56 	T("/xxxx/xxxx/x-x.ko", false     , true, 0    , NULL   );
57 	M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
58 	M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_KERNEL, true);
59 	M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_USER, false);
60 
61 #ifdef HAVE_ZLIB_SUPPORT
62 	/* path                alloc_name   kmod  comp  name  */
63 	T("/xxxx/xxxx/x.ko.gz", true     , true, 1   , "[x]");
64 	T("/xxxx/xxxx/x.ko.gz", false    , true, 1   , NULL );
65 	T("/xxxx/xxxx/x.ko.gz", true     , true, 1   , "[x]");
66 	T("/xxxx/xxxx/x.ko.gz", false    , true, 1   , NULL );
67 	M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
68 	M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
69 	M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_USER, false);
70 
71 	/* path              alloc_name  kmod   comp  name  */
72 	T("/xxxx/xxxx/x.gz", true      , false, 1   , "x.gz");
73 	T("/xxxx/xxxx/x.gz", false     , false, 1   , NULL  );
74 	T("/xxxx/xxxx/x.gz", true      , false, 1   , "x.gz");
75 	T("/xxxx/xxxx/x.gz", false     , false, 1   , NULL  );
76 	M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
77 	M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_KERNEL, false);
78 	M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_USER, false);
79 
80 	/* path   alloc_name  kmod   comp  name   */
81 	T("x.gz", true      , false, 1   , "x.gz");
82 	T("x.gz", false     , false, 1   , NULL  );
83 	T("x.gz", true      , false, 1   , "x.gz");
84 	T("x.gz", false     , false, 1   , NULL  );
85 	M("x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
86 	M("x.gz", PERF_RECORD_MISC_KERNEL, false);
87 	M("x.gz", PERF_RECORD_MISC_USER, false);
88 
89 	/* path      alloc_name  kmod  comp  name  */
90 	T("x.ko.gz", true      , true, 1   , "[x]");
91 	T("x.ko.gz", false     , true, 1   , NULL );
92 	T("x.ko.gz", true      , true, 1   , "[x]");
93 	T("x.ko.gz", false     , true, 1   , NULL );
94 	M("x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
95 	M("x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
96 	M("x.ko.gz", PERF_RECORD_MISC_USER, false);
97 #endif
98 
99 	/* path            alloc_name  kmod  comp   name           */
100 	T("[test_module]", true      , true, false, "[test_module]");
101 	T("[test_module]", false     , true, false, NULL           );
102 	T("[test_module]", true      , true, false, "[test_module]");
103 	T("[test_module]", false     , true, false, NULL           );
104 	M("[test_module]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
105 	M("[test_module]", PERF_RECORD_MISC_KERNEL, true);
106 	M("[test_module]", PERF_RECORD_MISC_USER, false);
107 
108 	/* path            alloc_name  kmod  comp   name           */
109 	T("[test.module]", true      , true, false, "[test.module]");
110 	T("[test.module]", false     , true, false, NULL           );
111 	T("[test.module]", true      , true, false, "[test.module]");
112 	T("[test.module]", false     , true, false, NULL           );
113 	M("[test.module]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
114 	M("[test.module]", PERF_RECORD_MISC_KERNEL, true);
115 	M("[test.module]", PERF_RECORD_MISC_USER, false);
116 
117 	/* path     alloc_name  kmod   comp   name    */
118 	T("[vdso]", true      , false, false, "[vdso]");
119 	T("[vdso]", false     , false, false, NULL    );
120 	T("[vdso]", true      , false, false, "[vdso]");
121 	T("[vdso]", false     , false, false, NULL    );
122 	M("[vdso]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
123 	M("[vdso]", PERF_RECORD_MISC_KERNEL, false);
124 	M("[vdso]", PERF_RECORD_MISC_USER, false);
125 
126 	T("[vdso32]", true      , false, false, "[vdso32]");
127 	T("[vdso32]", false     , false, false, NULL      );
128 	T("[vdso32]", true      , false, false, "[vdso32]");
129 	T("[vdso32]", false     , false, false, NULL      );
130 	M("[vdso32]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
131 	M("[vdso32]", PERF_RECORD_MISC_KERNEL, false);
132 	M("[vdso32]", PERF_RECORD_MISC_USER, false);
133 
134 	T("[vdsox32]", true      , false, false, "[vdsox32]");
135 	T("[vdsox32]", false     , false, false, NULL       );
136 	T("[vdsox32]", true      , false, false, "[vdsox32]");
137 	T("[vdsox32]", false     , false, false, NULL       );
138 	M("[vdsox32]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
139 	M("[vdsox32]", PERF_RECORD_MISC_KERNEL, false);
140 	M("[vdsox32]", PERF_RECORD_MISC_USER, false);
141 
142 	/* path         alloc_name  kmod   comp   name        */
143 	T("[vsyscall]", true      , false, false, "[vsyscall]");
144 	T("[vsyscall]", false     , false, false, NULL        );
145 	T("[vsyscall]", true      , false, false, "[vsyscall]");
146 	T("[vsyscall]", false     , false, false, NULL        );
147 	M("[vsyscall]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
148 	M("[vsyscall]", PERF_RECORD_MISC_KERNEL, false);
149 	M("[vsyscall]", PERF_RECORD_MISC_USER, false);
150 
151 	/* path                alloc_name  kmod   comp   name      */
152 	T("[kernel.kallsyms]", true      , false, false, "[kernel.kallsyms]");
153 	T("[kernel.kallsyms]", false     , false, false, NULL               );
154 	T("[kernel.kallsyms]", true      , false, false, "[kernel.kallsyms]");
155 	T("[kernel.kallsyms]", false     , false, false, NULL               );
156 	M("[kernel.kallsyms]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
157 	M("[kernel.kallsyms]", PERF_RECORD_MISC_KERNEL, false);
158 	M("[kernel.kallsyms]", PERF_RECORD_MISC_USER, false);
159 
160 	return 0;
161 }
162 
163 DEFINE_SUITE("kmod_path__parse", kmod_path__parse);
164