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 13char *parse_events_get_text(yyscan_t yyscanner); 14YYSTYPE *parse_events_get_lval(yyscan_t yyscanner); 15 16static int __value(YYSTYPE *yylval, char *str, int base, int token) 17{ 18 u64 num; 19 20 errno = 0; 21 num = strtoull(str, NULL, base); 22 if (errno) 23 return PE_ERROR; 24 25 yylval->num = num; 26 return token; 27} 28 29static 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 37static 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 45static 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 54static 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 62static 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%s config 74%x event 75 76group [^,{}/]*[{][^}]*[}][^,{}/]* 77event_pmu [^,{}/]+[/][^/]*[/][^,{}/]* 78event [^,{}/]+ 79 80num_dec [0-9]+ 81num_hex 0x[a-fA-F0-9]+ 82num_raw_hex [a-fA-F0-9]+ 83name [a-zA-Z_*?][a-zA-Z0-9_*?]* 84name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?]* 85/* If you add a modifier you need to update check_modifier() */ 86modifier_event [ukhpGHSD]+ 87modifier_bp [rwx]{1,3} 88 89%% 90 91%{ 92 { 93 int start_token; 94 95 start_token = parse_events_get_extra(yyscanner); 96 97 if (start_token == PE_START_TERMS) 98 BEGIN(config); 99 else if (start_token == PE_START_EVENTS) 100 BEGIN(event); 101 102 if (start_token) { 103 parse_events_set_extra(NULL, yyscanner); 104 return start_token; 105 } 106 } 107%} 108 109<event>{ 110 111{group} { 112 BEGIN(INITIAL); yyless(0); 113 } 114 115{event_pmu} | 116{event} { 117 str(yyscanner, PE_EVENT_NAME); 118 BEGIN(INITIAL); yyless(0); 119 return PE_EVENT_NAME; 120 } 121 122. | 123<<EOF>> { 124 BEGIN(INITIAL); yyless(0); 125 } 126 127} 128 129cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); } 130stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); } 131stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); } 132instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); } 133cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); } 134cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); } 135branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); } 136branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); } 137bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); } 138ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); } 139cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); } 140task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); } 141page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); } 142minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); } 143major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); } 144context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); } 145cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); } 146alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); } 147emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); } 148dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); } 149 150L1-dcache|l1-d|l1d|L1-data | 151L1-icache|l1-i|l1i|L1-instruction | 152LLC|L2 | 153dTLB|d-tlb|Data-TLB | 154iTLB|i-tlb|Instruction-TLB | 155branch|branches|bpu|btb|bpc | 156node { return str(yyscanner, PE_NAME_CACHE_TYPE); } 157 158load|loads|read | 159store|stores|write | 160prefetch|prefetches | 161speculative-read|speculative-load | 162refs|Reference|ops|access | 163misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); } 164 165<config>{ 166config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); } 167config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); } 168config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); } 169name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); } 170period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); } 171branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); } 172, { return ','; } 173"/" { BEGIN(INITIAL); return '/'; } 174{name_minus} { return str(yyscanner, PE_NAME); } 175} 176 177mem: { BEGIN(mem); return PE_PREFIX_MEM; } 178r{num_raw_hex} { return raw(yyscanner); } 179{num_dec} { return value(yyscanner, 10); } 180{num_hex} { return value(yyscanner, 16); } 181 182{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); } 183{name} { return str(yyscanner, PE_NAME); } 184"/" { BEGIN(config); return '/'; } 185- { return '-'; } 186, { BEGIN(event); return ','; } 187: { return ':'; } 188"{" { BEGIN(event); return '{'; } 189"}" { return '}'; } 190= { return '='; } 191\n { } 192 193<mem>{ 194{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); } 195: { return ':'; } 196{num_dec} { return value(yyscanner, 10); } 197{num_hex} { return value(yyscanner, 16); } 198 /* 199 * We need to separate 'mem:' scanner part, in order to get specific 200 * modifier bits parsed out. Otherwise we would need to handle PE_NAME 201 * and we'd need to parse it manually. During the escape from <mem> 202 * state we need to put the escaping char back, so we dont miss it. 203 */ 204. { unput(*yytext); BEGIN(INITIAL); } 205 /* 206 * We destroy the scanner after reaching EOF, 207 * but anyway just to be sure get back to INIT state. 208 */ 209<<EOF>> { BEGIN(INITIAL); } 210} 211 212%% 213 214int parse_events_wrap(void *scanner __maybe_unused) 215{ 216 return 1; 217} 218