4 %option prefix="parse_events_"
6 %option bison-locations
12 #include "parse-events-bison.h"
13 #include "parse-events.h"
15 char *parse_events_get_text(yyscan_t yyscanner);
16 YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
18 static int __value(YYSTYPE *yylval, char *str, int base, int token)
23 num = strtoull(str, NULL, base);
31 static int value(yyscan_t scanner, int base)
33 YYSTYPE *yylval = parse_events_get_lval(scanner);
34 char *text = parse_events_get_text(scanner);
36 return __value(yylval, text, base, PE_VALUE);
39 static int raw(yyscan_t scanner)
41 YYSTYPE *yylval = parse_events_get_lval(scanner);
42 char *text = parse_events_get_text(scanner);
44 return __value(yylval, text + 1, 16, PE_RAW);
47 static int str(yyscan_t scanner, int token)
49 YYSTYPE *yylval = parse_events_get_lval(scanner);
50 char *text = parse_events_get_text(scanner);
52 yylval->str = strdup(text);
56 #define REWIND(__alloc) \
58 YYSTYPE *__yylval = parse_events_get_lval(yyscanner); \
59 char *text = parse_events_get_text(yyscanner); \
62 __yylval->str = strdup(text); \
64 yycolumn -= strlen(text); \
68 static int pmu_str_check(yyscan_t scanner)
70 YYSTYPE *yylval = parse_events_get_lval(scanner);
71 char *text = parse_events_get_text(scanner);
73 yylval->str = strdup(text);
74 switch (perf_pmu__parse_check(text)) {
75 case PMU_EVENT_SYMBOL_PREFIX:
76 return PE_PMU_EVENT_PRE;
77 case PMU_EVENT_SYMBOL_SUFFIX:
78 return PE_PMU_EVENT_SUF;
79 case PMU_EVENT_SYMBOL:
80 return PE_KERNEL_PMU_EVENT;
86 static int sym(yyscan_t scanner, int type, int config)
88 YYSTYPE *yylval = parse_events_get_lval(scanner);
90 yylval->num = (type << 16) + config;
91 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
94 static int term(yyscan_t scanner, int type)
96 YYSTYPE *yylval = parse_events_get_lval(scanner);
102 #define YY_USER_ACTION \
104 yylloc->last_column = yylloc->first_column; \
105 yylloc->first_column = yycolumn; \
106 yycolumn += yyleng; \
115 group [^,{}/]*[{][^}]*[}][^,{}/]*
116 event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
120 num_hex 0x[a-fA-F0-9]+
121 num_raw_hex [a-fA-F0-9]+
122 name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
123 name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.]*
124 /* If you add a modifier you need to update check_modifier() */
125 modifier_event [ukhpGHSDI]+
126 modifier_bp [rwx]{1,3}
134 start_token = parse_events_get_extra(yyscanner);
136 if (start_token == PE_START_TERMS)
138 else if (start_token == PE_START_EVENTS)
142 parse_events_set_extra(NULL, yyscanner);
144 * The flex parser does not init locations variable
145 * via the scan_string interface, so we need do the
165 return PE_EVENT_NAME;
177 * Please update formats_error_string any time
178 * new static term is added.
180 config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
181 config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
182 config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
183 name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
184 period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
185 branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
186 time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
188 "/" { BEGIN(INITIAL); return '/'; }
189 {name_minus} { return str(yyscanner, PE_NAME); }
193 {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
196 {num_dec} { return value(yyscanner, 10); }
197 {num_hex} { return value(yyscanner, 16); }
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.
204 . { unput(*yytext); BEGIN(INITIAL); }
206 * We destroy the scanner after reaching EOF,
207 * but anyway just to be sure get back to INIT state.
209 <<EOF>> { BEGIN(INITIAL); }
212 cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
213 stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
214 stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
215 instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
216 cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
217 cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
218 branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
219 branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
220 bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
221 ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
222 cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
223 task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
224 page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
225 minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
226 major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
227 context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
228 cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
229 alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
230 emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
231 dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
234 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
235 * Because the prefix cycles is mixed up with cpu-cycles.
236 * loads and stores are mixed up with cache event
238 cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
239 cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
240 mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
241 mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
243 L1-dcache|l1-d|l1d|L1-data |
244 L1-icache|l1-i|l1i|L1-instruction |
246 dTLB|d-tlb|Data-TLB |
247 iTLB|i-tlb|Instruction-TLB |
248 branch|branches|bpu|btb|bpc |
249 node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
253 prefetch|prefetches |
254 speculative-read|speculative-load |
255 refs|Reference|ops|access |
256 misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
258 mem: { BEGIN(mem); return PE_PREFIX_MEM; }
259 r{num_raw_hex} { return raw(yyscanner); }
260 {num_dec} { return value(yyscanner, 10); }
261 {num_hex} { return value(yyscanner, 16); }
263 {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
264 {name} { return pmu_str_check(yyscanner); }
265 "/" { BEGIN(config); return '/'; }
267 , { BEGIN(event); return ','; }
269 "{" { BEGIN(event); return '{'; }
277 int parse_events_wrap(void *scanner __maybe_unused)