perf/tests/kmod-path.c

0001 // SPDX-License-Identifier: GPL-2.0
0002 #include <stdbool.h>
0003 #include <stdlib.h>
0004 #include <string.h>
0005 #include "tests.h"
0006 #include "dso.h"
0007 #include "debug.h"
0008 #include "event.h"
0009
0010 static int test(const char *path, bool alloc_name, bool kmod,
0011         int comp, const char *name)
0012 {
0013     struct kmod_path m;
0014
0015     memset(&m, 0x0, sizeof(m));
0016
0017     TEST_ASSERT_VAL("kmod_path__parse",
0018             !__kmod_path__parse(&m, path, alloc_name));
0019
0020     pr_debug("%s - alloc name %d, kmod %d, comp %d, name '%s'\n",
0021          path, alloc_name, m.kmod, m.comp, m.name);
0022
0023     TEST_ASSERT_VAL("wrong kmod", m.kmod == kmod);
0024     TEST_ASSERT_VAL("wrong comp", m.comp == comp);
0025
0026     if (name)
0027         TEST_ASSERT_VAL("wrong name", m.name && !strcmp(name, m.name));
0028     else
0029         TEST_ASSERT_VAL("wrong name", !m.name);
0030
0031     free(m.name);
0032     return 0;
0033 }
0034
0035 static int test_is_kernel_module(const char *path, int cpumode, bool expect)
0036 {
0037     TEST_ASSERT_VAL("is_kernel_module",
0038             (!!is_kernel_module(path, cpumode)) == (!!expect));
0039     pr_debug("%s (cpumode: %d) - is_kernel_module: %s\n",
0040             path, cpumode, expect ? "true" : "false");
0041     return 0;
0042 }
0043
0044 #define T(path, an, k, c, n) \
0045     TEST_ASSERT_VAL("failed", !test(path, an, k, c, n))
0046
0047 #define M(path, c, e) \
0048     TEST_ASSERT_VAL("failed", !test_is_kernel_module(path, c, e))
0049
0050 static int test__kmod_path__parse(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
0051 {
0052     /* path                alloc_name  kmod  comp   name   */
0053     T("/xxxx/xxxx/x-x.ko", true      , true, 0    , "[x_x]");
0054     T("/xxxx/xxxx/x-x.ko", false     , true, 0    , NULL   );
0055     T("/xxxx/xxxx/x-x.ko", true      , true, 0    , "[x_x]");
0056     T("/xxxx/xxxx/x-x.ko", false     , true, 0    , NULL   );
0057     M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
0058     M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_KERNEL, true);
0059     M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_USER, false);
0060
0061 #ifdef HAVE_ZLIB_SUPPORT
0062     /* path                alloc_name   kmod  comp  name  */
0063     T("/xxxx/xxxx/x.ko.gz", true     , true, 1   , "[x]");
0064     T("/xxxx/xxxx/x.ko.gz", false    , true, 1   , NULL );
0065     T("/xxxx/xxxx/x.ko.gz", true     , true, 1   , "[x]");
0066     T("/xxxx/xxxx/x.ko.gz", false    , true, 1   , NULL );
0067     M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
0068     M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
0069     M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_USER, false);
0070
0071     /* path              alloc_name  kmod   comp  name  */
0072     T("/xxxx/xxxx/x.gz", true      , false, 1   , "x.gz");
0073     T("/xxxx/xxxx/x.gz", false     , false, 1   , NULL  );
0074     T("/xxxx/xxxx/x.gz", true      , false, 1   , "x.gz");
0075     T("/xxxx/xxxx/x.gz", false     , false, 1   , NULL  );
0076     M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0077     M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_KERNEL, false);
0078     M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_USER, false);
0079
0080     /* path   alloc_name  kmod   comp  name   */
0081     T("x.gz", true      , false, 1   , "x.gz");
0082     T("x.gz", false     , false, 1   , NULL  );
0083     T("x.gz", true      , false, 1   , "x.gz");
0084     T("x.gz", false     , false, 1   , NULL  );
0085     M("x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0086     M("x.gz", PERF_RECORD_MISC_KERNEL, false);
0087     M("x.gz", PERF_RECORD_MISC_USER, false);
0088
0089     /* path      alloc_name  kmod  comp  name  */
0090     T("x.ko.gz", true      , true, 1   , "[x]");
0091     T("x.ko.gz", false     , true, 1   , NULL );
0092     T("x.ko.gz", true      , true, 1   , "[x]");
0093     T("x.ko.gz", false     , true, 1   , NULL );
0094     M("x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
0095     M("x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
0096     M("x.ko.gz", PERF_RECORD_MISC_USER, false);
0097 #endif
0098
0099     /* path            alloc_name  kmod  comp   name           */
0100     T("[test_module]", true      , true, false, "[test_module]");
0101     T("[test_module]", false     , true, false, NULL           );
0102     T("[test_module]", true      , true, false, "[test_module]");
0103     T("[test_module]", false     , true, false, NULL           );
0104     M("[test_module]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
0105     M("[test_module]", PERF_RECORD_MISC_KERNEL, true);
0106     M("[test_module]", PERF_RECORD_MISC_USER, false);
0107
0108     /* path            alloc_name  kmod  comp   name           */
0109     T("[test.module]", true      , true, false, "[test.module]");
0110     T("[test.module]", false     , true, false, NULL           );
0111     T("[test.module]", true      , true, false, "[test.module]");
0112     T("[test.module]", false     , true, false, NULL           );
0113     M("[test.module]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
0114     M("[test.module]", PERF_RECORD_MISC_KERNEL, true);
0115     M("[test.module]", PERF_RECORD_MISC_USER, false);
0116
0117     /* path     alloc_name  kmod   comp   name    */
0118     T("[vdso]", true      , false, false, "[vdso]");
0119     T("[vdso]", false     , false, false, NULL    );
0120     T("[vdso]", true      , false, false, "[vdso]");
0121     T("[vdso]", false     , false, false, NULL    );
0122     M("[vdso]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0123     M("[vdso]", PERF_RECORD_MISC_KERNEL, false);
0124     M("[vdso]", PERF_RECORD_MISC_USER, false);
0125
0126     T("[vdso32]", true      , false, false, "[vdso32]");
0127     T("[vdso32]", false     , false, false, NULL      );
0128     T("[vdso32]", true      , false, false, "[vdso32]");
0129     T("[vdso32]", false     , false, false, NULL      );
0130     M("[vdso32]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0131     M("[vdso32]", PERF_RECORD_MISC_KERNEL, false);
0132     M("[vdso32]", PERF_RECORD_MISC_USER, false);
0133
0134     T("[vdsox32]", true      , false, false, "[vdsox32]");
0135     T("[vdsox32]", false     , false, false, NULL       );
0136     T("[vdsox32]", true      , false, false, "[vdsox32]");
0137     T("[vdsox32]", false     , false, false, NULL       );
0138     M("[vdsox32]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0139     M("[vdsox32]", PERF_RECORD_MISC_KERNEL, false);
0140     M("[vdsox32]", PERF_RECORD_MISC_USER, false);
0141
0142     /* path         alloc_name  kmod   comp   name        */
0143     T("[vsyscall]", true      , false, false, "[vsyscall]");
0144     T("[vsyscall]", false     , false, false, NULL        );
0145     T("[vsyscall]", true      , false, false, "[vsyscall]");
0146     T("[vsyscall]", false     , false, false, NULL        );
0147     M("[vsyscall]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0148     M("[vsyscall]", PERF_RECORD_MISC_KERNEL, false);
0149     M("[vsyscall]", PERF_RECORD_MISC_USER, false);
0150
0151     /* path                alloc_name  kmod   comp   name      */
0152     T("[kernel.kallsyms]", true      , false, false, "[kernel.kallsyms]");
0153     T("[kernel.kallsyms]", false     , false, false, NULL               );
0154     T("[kernel.kallsyms]", true      , false, false, "[kernel.kallsyms]");
0155     T("[kernel.kallsyms]", false     , false, false, NULL               );
0156     M("[kernel.kallsyms]", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
0157     M("[kernel.kallsyms]", PERF_RECORD_MISC_KERNEL, false);
0158     M("[kernel.kallsyms]", PERF_RECORD_MISC_USER, false);
0159
0160     return 0;
0161 }
0162
0163 DEFINE_SUITE("kmod_path__parse", kmod_path__parse);