1 #include "parse-events.h" 2 #include "pmu.h" 3 #include "util.h" 4 #include "tests.h" 5 6 /* Simulated format definitions. */ 7 static struct test_format { 8 const char *name; 9 const char *value; 10 } test_formats[] = { 11 { "krava01", "config:0-1,62-63\n", }, 12 { "krava02", "config:10-17\n", }, 13 { "krava03", "config:5\n", }, 14 { "krava11", "config1:0,2,4,6,8,20-28\n", }, 15 { "krava12", "config1:63\n", }, 16 { "krava13", "config1:45-47\n", }, 17 { "krava21", "config2:0-3,10-13,20-23,30-33,40-43,50-53,60-63\n", }, 18 { "krava22", "config2:8,18,48,58\n", }, 19 { "krava23", "config2:28-29,38\n", }, 20 }; 21 22 #define TEST_FORMATS_CNT (sizeof(test_formats) / sizeof(struct test_format)) 23 24 /* Simulated users input. */ 25 static struct parse_events__term test_terms[] = { 26 { 27 .config = (char *) "krava01", 28 .val.num = 15, 29 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 30 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 31 }, 32 { 33 .config = (char *) "krava02", 34 .val.num = 170, 35 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 36 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 37 }, 38 { 39 .config = (char *) "krava03", 40 .val.num = 1, 41 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 42 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 43 }, 44 { 45 .config = (char *) "krava11", 46 .val.num = 27, 47 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 48 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 49 }, 50 { 51 .config = (char *) "krava12", 52 .val.num = 1, 53 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 54 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 55 }, 56 { 57 .config = (char *) "krava13", 58 .val.num = 2, 59 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 60 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 61 }, 62 { 63 .config = (char *) "krava21", 64 .val.num = 119, 65 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 66 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 67 }, 68 { 69 .config = (char *) "krava22", 70 .val.num = 11, 71 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 72 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 73 }, 74 { 75 .config = (char *) "krava23", 76 .val.num = 2, 77 .type_val = PARSE_EVENTS__TERM_TYPE_NUM, 78 .type_term = PARSE_EVENTS__TERM_TYPE_USER, 79 }, 80 }; 81 #define TERMS_CNT (sizeof(test_terms) / sizeof(struct parse_events__term)) 82 83 /* 84 * Prepare format directory data, exported by kernel 85 * at /sys/bus/event_source/devices/<dev>/format. 86 */ 87 static char *test_format_dir_get(void) 88 { 89 static char dir[PATH_MAX]; 90 unsigned int i; 91 92 snprintf(dir, PATH_MAX, "/tmp/perf-pmu-test-format-XXXXXX"); 93 if (!mkdtemp(dir)) 94 return NULL; 95 96 for (i = 0; i < TEST_FORMATS_CNT; i++) { 97 static char name[PATH_MAX]; 98 struct test_format *format = &test_formats[i]; 99 FILE *file; 100 101 snprintf(name, PATH_MAX, "%s/%s", dir, format->name); 102 103 file = fopen(name, "w"); 104 if (!file) 105 return NULL; 106 107 if (1 != fwrite(format->value, strlen(format->value), 1, file)) 108 break; 109 110 fclose(file); 111 } 112 113 return dir; 114 } 115 116 /* Cleanup format directory. */ 117 static int test_format_dir_put(char *dir) 118 { 119 char buf[PATH_MAX]; 120 snprintf(buf, PATH_MAX, "rm -f %s/*\n", dir); 121 if (system(buf)) 122 return -1; 123 124 snprintf(buf, PATH_MAX, "rmdir %s\n", dir); 125 return system(buf); 126 } 127 128 static struct list_head *test_terms_list(void) 129 { 130 static LIST_HEAD(terms); 131 unsigned int i; 132 133 for (i = 0; i < TERMS_CNT; i++) 134 list_add_tail(&test_terms[i].list, &terms); 135 136 return &terms; 137 } 138 139 #undef TERMS_CNT 140 141 int test__pmu(void) 142 { 143 char *format = test_format_dir_get(); 144 LIST_HEAD(formats); 145 struct list_head *terms = test_terms_list(); 146 int ret; 147 148 if (!format) 149 return -EINVAL; 150 151 do { 152 struct perf_event_attr attr; 153 154 memset(&attr, 0, sizeof(attr)); 155 156 ret = perf_pmu__format_parse(format, &formats); 157 if (ret) 158 break; 159 160 ret = perf_pmu__config_terms(&formats, &attr, terms); 161 if (ret) 162 break; 163 164 ret = -EINVAL; 165 166 if (attr.config != 0xc00000000002a823) 167 break; 168 if (attr.config1 != 0x8000400000000145) 169 break; 170 if (attr.config2 != 0x0400000020041d07) 171 break; 172 173 ret = 0; 174 } while (0); 175 176 test_format_dir_put(format); 177 return ret; 178 } 179