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