4 %option prefix="parse_events_"
10 #include "parse-events-bison.h"
11 #include "parse-events.h"
13 char *parse_events_get_text(yyscan_t yyscanner);
14 YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
16 static int __value(YYSTYPE *yylval, char *str, int base, int token)
21 num = strtoul(str, NULL, base);
29 static int value(yyscan_t scanner, int base)
31 YYSTYPE *yylval = parse_events_get_lval(scanner);
32 char *text = parse_events_get_text(scanner);
34 return __value(yylval, text, base, PE_VALUE);
37 static int raw(yyscan_t scanner)
39 YYSTYPE *yylval = parse_events_get_lval(scanner);
40 char *text = parse_events_get_text(scanner);
42 return __value(yylval, text + 1, 16, PE_RAW);
45 static int str(yyscan_t scanner, int token)
47 YYSTYPE *yylval = parse_events_get_lval(scanner);
48 char *text = parse_events_get_text(scanner);
50 yylval->str = strdup(text);
54 static int sym(yyscan_t scanner, int type, int config)
56 YYSTYPE *yylval = parse_events_get_lval(scanner);
58 yylval->num = (type << 16) + config;
59 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
62 static int term(yyscan_t scanner, int type)
64 YYSTYPE *yylval = parse_events_get_lval(scanner);
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}
87 start_token = (int) parse_events_get_extra(yyscanner);
89 parse_events_set_extra(NULL, yyscanner);
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); }
115 L1-dcache|l1-d|l1d|L1-data |
116 L1-icache|l1-i|l1i|L1-instruction |
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); }
125 prefetch|prefetches |
126 speculative-read|speculative-load |
127 refs|Reference|ops|access |
128 misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
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.
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); }
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); }
148 {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
149 {name} { return str(yyscanner, PE_NAME); }
158 {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
160 {num_dec} { return value(yyscanner, 10); }
161 {num_hex} { return value(yyscanner, 16); }
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.
168 . { unput(*yytext); BEGIN(INITIAL); }
170 * We destroy the scanner after reaching EOF,
171 * but anyway just to be sure get back to INIT state.
173 <<EOF>> { BEGIN(INITIAL); }
178 int parse_events_wrap(void *scanner __used)