1 2 %option reentrant 3 %option bison-bridge 4 %option prefix="parse_events_" 5 %option stack 6 7 %{ 8 #include <errno.h> 9 #include "../perf.h" 10 #include "parse-events-bison.h" 11 #include "parse-events.h" 12 13 char *parse_events_get_text(yyscan_t yyscanner); 14 YYSTYPE *parse_events_get_lval(yyscan_t yyscanner); 15 16 static int __value(YYSTYPE *yylval, char *str, int base, int token) 17 { 18 long num; 19 20 errno = 0; 21 num = strtoul(str, NULL, base); 22 if (errno) 23 return PE_ERROR; 24 25 yylval->num = num; 26 return token; 27 } 28 29 static int value(yyscan_t scanner, int base) 30 { 31 YYSTYPE *yylval = parse_events_get_lval(scanner); 32 char *text = parse_events_get_text(scanner); 33 34 return __value(yylval, text, base, PE_VALUE); 35 } 36 37 static int raw(yyscan_t scanner) 38 { 39 YYSTYPE *yylval = parse_events_get_lval(scanner); 40 char *text = parse_events_get_text(scanner); 41 42 return __value(yylval, text + 1, 16, PE_RAW); 43 } 44 45 static int str(yyscan_t scanner, int token) 46 { 47 YYSTYPE *yylval = parse_events_get_lval(scanner); 48 char *text = parse_events_get_text(scanner); 49 50 yylval->str = strdup(text); 51 return token; 52 } 53 54 static int sym(yyscan_t scanner, int type, int config) 55 { 56 YYSTYPE *yylval = parse_events_get_lval(scanner); 57 58 yylval->num = (type << 16) + config; 59 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW; 60 } 61 62 static int term(yyscan_t scanner, int type) 63 { 64 YYSTYPE *yylval = parse_events_get_lval(scanner); 65 66 yylval->num = type; 67 return PE_TERM; 68 } 69 70 %} 71 72 %x mem 73 74 num_dec [0-9]+ 75 num_hex 0x[a-fA-F0-9]+ 76 num_raw_hex [a-fA-F0-9]+ 77 name [a-zA-Z_*?][a-zA-Z0-9_*?]* 78 modifier_event [ukhpGH]{1,8} 79 modifier_bp [rwx]{1,3} 80 81 %% 82 83 %{ 84 { 85 int start_token; 86 87 start_token = (int) parse_events_get_extra(yyscanner); 88 if (start_token) { 89 parse_events_set_extra(NULL, yyscanner); 90 return start_token; 91 } 92 } 93 %} 94 95 cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); } 96 stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); } 97 stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); } 98 instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); } 99 cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); } 100 cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); } 101 branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); } 102 branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); } 103 bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); } 104 ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); } 105 cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); } 106 task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); } 107 page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); } 108 minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); } 109 major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); } 110 context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); } 111 cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); } 112 alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); } 113 emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); } 114 115 L1-dcache|l1-d|l1d|L1-data | 116 L1-icache|l1-i|l1i|L1-instruction | 117 LLC|L2 | 118 dTLB|d-tlb|Data-TLB | 119 iTLB|i-tlb|Instruction-TLB | 120 branch|branches|bpu|btb|bpc | 121 node { return str(yyscanner, PE_NAME_CACHE_TYPE); } 122 123 load|loads|read | 124 store|stores|write | 125 prefetch|prefetches | 126 speculative-read|speculative-load | 127 refs|Reference|ops|access | 128 misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); } 129 130 /* 131 * These are event config hardcoded term names to be specified 132 * within xxx/.../ syntax. So far we dont clash with other names, 133 * so we can put them here directly. In case the we have a conflict 134 * in future, this needs to go into '//' condition block. 135 */ 136 config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); } 137 config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); } 138 config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); } 139 name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); } 140 period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } 141 branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); } 142 143 mem: { BEGIN(mem); return PE_PREFIX_MEM; } 144 r{num_raw_hex} { return raw(yyscanner); } 145 {num_dec} { return value(yyscanner, 10); } 146 {num_hex} { return value(yyscanner, 16); } 147 148 {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } 149 {name} { return str(yyscanner, PE_NAME); } 150 "/" { return '/'; } 151 - { return '-'; } 152 , { return ','; } 153 : { return ':'; } 154 = { return '='; } 155 \n { } 156 157 <mem>{ 158 {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); } 159 : { return ':'; } 160 {num_dec} { return value(yyscanner, 10); } 161 {num_hex} { return value(yyscanner, 16); } 162 /* 163 * We need to separate 'mem:' scanner part, in order to get specific 164 * modifier bits parsed out. Otherwise we would need to handle PE_NAME 165 * and we'd need to parse it manually. During the escape from <mem> 166 * state we need to put the escaping char back, so we dont miss it. 167 */ 168 . { unput(*yytext); BEGIN(INITIAL); } 169 /* 170 * We destroy the scanner after reaching EOF, 171 * but anyway just to be sure get back to INIT state. 172 */ 173 <<EOF>> { BEGIN(INITIAL); } 174 } 175 176 %% 177 178 int parse_events_wrap(void *scanner __used) 179 { 180 return 1; 181 } 182