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Linux/tools/perf/tests/kmod-path.c

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  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 
 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 
 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 
 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 

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