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 = strtoull(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 pmu_str_check(yyscan_t scanner)
56 YYSTYPE *yylval = parse_events_get_lval(scanner);
57 char *text = parse_events_get_text(scanner);
59 yylval->str = strdup(text);
60 switch (perf_pmu__parse_check(text)) {
61 case PMU_EVENT_SYMBOL_PREFIX:
62 return PE_PMU_EVENT_PRE;
63 case PMU_EVENT_SYMBOL_SUFFIX:
64 return PE_PMU_EVENT_SUF;
65 case PMU_EVENT_SYMBOL:
66 return PE_KERNEL_PMU_EVENT;
72 static int sym(yyscan_t scanner, int type, int config)
74 YYSTYPE *yylval = parse_events_get_lval(scanner);
76 yylval->num = (type << 16) + config;
77 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
80 static int term(yyscan_t scanner, int type)
82 YYSTYPE *yylval = parse_events_get_lval(scanner);
94 group [^,{}/]*[{][^}]*[}][^,{}/]*
95 event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
99 num_hex 0x[a-fA-F0-9]+
100 num_raw_hex [a-fA-F0-9]+
101 name [a-zA-Z_*?][a-zA-Z0-9_*?]*
102 name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?]*
103 /* If you add a modifier you need to update check_modifier() */
104 modifier_event [ukhpGHSD]+
105 modifier_bp [rwx]{1,3}
113 start_token = parse_events_get_extra(yyscanner);
115 if (start_token == PE_START_TERMS)
117 else if (start_token == PE_START_EVENTS)
121 parse_events_set_extra(NULL, yyscanner);
130 BEGIN(INITIAL); yyless(0);
135 str(yyscanner, PE_EVENT_NAME);
136 BEGIN(INITIAL); yyless(0);
137 return PE_EVENT_NAME;
142 BEGIN(INITIAL); yyless(0);
148 config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
149 config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
150 config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
151 name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
152 period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
153 branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
155 "/" { BEGIN(INITIAL); return '/'; }
156 {name_minus} { return str(yyscanner, PE_NAME); }
160 {modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
162 {num_dec} { return value(yyscanner, 10); }
163 {num_hex} { return value(yyscanner, 16); }
165 * We need to separate 'mem:' scanner part, in order to get specific
166 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
167 * and we'd need to parse it manually. During the escape from <mem>
168 * state we need to put the escaping char back, so we dont miss it.
170 . { unput(*yytext); BEGIN(INITIAL); }
172 * We destroy the scanner after reaching EOF,
173 * but anyway just to be sure get back to INIT state.
175 <<EOF>> { BEGIN(INITIAL); }
178 cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
179 stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
180 stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
181 instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
182 cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
183 cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
184 branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
185 branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
186 bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
187 ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
188 cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
189 task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
190 page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
191 minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
192 major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
193 context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
194 cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
195 alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
196 emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
197 dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
200 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
201 * Because the prefix cycles is mixed up with cpu-cycles.
202 * loads and stores are mixed up with cache event
204 cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
205 cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
206 mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
207 mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
209 L1-dcache|l1-d|l1d|L1-data |
210 L1-icache|l1-i|l1i|L1-instruction |
212 dTLB|d-tlb|Data-TLB |
213 iTLB|i-tlb|Instruction-TLB |
214 branch|branches|bpu|btb|bpc |
215 node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
219 prefetch|prefetches |
220 speculative-read|speculative-load |
221 refs|Reference|ops|access |
222 misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
224 mem: { BEGIN(mem); return PE_PREFIX_MEM; }
225 r{num_raw_hex} { return raw(yyscanner); }
226 {num_dec} { return value(yyscanner, 10); }
227 {num_hex} { return value(yyscanner, 16); }
229 {modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
230 {name} { return pmu_str_check(yyscanner); }
231 "/" { BEGIN(config); return '/'; }
233 , { BEGIN(event); return ','; }
235 "{" { BEGIN(event); return '{'; }
243 int parse_events_wrap(void *scanner __maybe_unused)