perf symbols: we can now read separate debug-info files based on a build ID
[deliverable/linux.git] / tools / perf / util / parse-events.l
CommitLineData
89812fc8 1
ac20de6f
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2%option reentrant
3%option bison-bridge
89812fc8 4%option prefix="parse_events_"
08d2f762 5%option stack
6297d423
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6%option bison-locations
7%option yylineno
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8
9%{
10#include <errno.h>
11#include "../perf.h"
12#include "parse-events-bison.h"
8f707d84 13#include "parse-events.h"
89812fc8 14
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15char *parse_events_get_text(yyscan_t yyscanner);
16YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
17
18static int __value(YYSTYPE *yylval, char *str, int base, int token)
89812fc8 19{
b527bab5 20 u64 num;
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21
22 errno = 0;
b527bab5 23 num = strtoull(str, NULL, base);
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24 if (errno)
25 return PE_ERROR;
26
ac20de6f 27 yylval->num = num;
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28 return token;
29}
30
ac20de6f 31static int value(yyscan_t scanner, int base)
89812fc8 32{
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33 YYSTYPE *yylval = parse_events_get_lval(scanner);
34 char *text = parse_events_get_text(scanner);
35
36 return __value(yylval, text, base, PE_VALUE);
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37}
38
ac20de6f 39static int raw(yyscan_t scanner)
89812fc8 40{
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41 YYSTYPE *yylval = parse_events_get_lval(scanner);
42 char *text = parse_events_get_text(scanner);
43
44 return __value(yylval, text + 1, 16, PE_RAW);
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45}
46
ac20de6f 47static int str(yyscan_t scanner, int token)
89812fc8 48{
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49 YYSTYPE *yylval = parse_events_get_lval(scanner);
50 char *text = parse_events_get_text(scanner);
51
52 yylval->str = strdup(text);
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53 return token;
54}
55
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56#define REWIND(__alloc) \
57do { \
58 YYSTYPE *__yylval = parse_events_get_lval(yyscanner); \
59 char *text = parse_events_get_text(yyscanner); \
60 \
61 if (__alloc) \
62 __yylval->str = strdup(text); \
63 \
64 yycolumn -= strlen(text); \
65 yyless(0); \
66} while (0)
67
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68static int pmu_str_check(yyscan_t scanner)
69{
70 YYSTYPE *yylval = parse_events_get_lval(scanner);
71 char *text = parse_events_get_text(scanner);
72
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;
81 default:
82 return PE_NAME;
83 }
84}
85
ac20de6f 86static int sym(yyscan_t scanner, int type, int config)
89812fc8 87{
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88 YYSTYPE *yylval = parse_events_get_lval(scanner);
89
90 yylval->num = (type << 16) + config;
cf3506dc 91 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
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92}
93
ac20de6f 94static int term(yyscan_t scanner, int type)
8f707d84 95{
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96 YYSTYPE *yylval = parse_events_get_lval(scanner);
97
98 yylval->num = type;
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99 return PE_TERM;
100}
101
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102#define YY_USER_ACTION \
103do { \
104 yylloc->last_column = yylloc->first_column; \
105 yylloc->first_column = yycolumn; \
106 yycolumn += yyleng; \
107} while (0);
108
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109%}
110
08d2f762 111%x mem
ac2ba9f3
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112%s config
113%x event
114
115group [^,{}/]*[{][^}]*[}][^,{}/]*
116event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
117event [^,{}/]+
08d2f762 118
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119num_dec [0-9]+
120num_hex 0x[a-fA-F0-9]+
121num_raw_hex [a-fA-F0-9]+
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122name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
123name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.]*
e9a7c414 124/* If you add a modifier you need to update check_modifier() */
7f94af7a 125modifier_event [ukhpPGHSDI]+
7582732f 126modifier_bp [rwx]{1,3}
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127
128%%
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129
130%{
131 {
132 int start_token;
133
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134 start_token = parse_events_get_extra(yyscanner);
135
136 if (start_token == PE_START_TERMS)
137 BEGIN(config);
138 else if (start_token == PE_START_EVENTS)
139 BEGIN(event);
140
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141 if (start_token) {
142 parse_events_set_extra(NULL, yyscanner);
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143 /*
144 * The flex parser does not init locations variable
145 * via the scan_string interface, so we need do the
146 * init in here.
147 */
148 yycolumn = 0;
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149 return start_token;
150 }
151 }
152%}
153
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154<event>{
155
156{group} {
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157 BEGIN(INITIAL);
158 REWIND(0);
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159 }
160
161{event_pmu} |
162{event} {
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163 BEGIN(INITIAL);
164 REWIND(1);
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165 return PE_EVENT_NAME;
166 }
167
ac2ba9f3 168<<EOF>> {
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169 BEGIN(INITIAL);
170 REWIND(0);
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171 }
172
173}
174
82004223 175<config>{
e64b020b 176 /*
ffeb883e 177 * Please update parse_events_formats_error_string any time
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178 * new static term is added.
179 */
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180config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
181config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
182config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
183name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
184period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
09af2a55 185freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
82004223 186branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
32067712 187time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
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188call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
189stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
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190, { return ','; }
191"/" { BEGIN(INITIAL); return '/'; }
192{name_minus} { return str(yyscanner, PE_NAME); }
193}
194
195<mem>{
196{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
197: { return ':'; }
3741eb9f 198"/" { return '/'; }
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199{num_dec} { return value(yyscanner, 10); }
200{num_hex} { return value(yyscanner, 16); }
201 /*
202 * We need to separate 'mem:' scanner part, in order to get specific
203 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
204 * and we'd need to parse it manually. During the escape from <mem>
205 * state we need to put the escaping char back, so we dont miss it.
206 */
207. { unput(*yytext); BEGIN(INITIAL); }
208 /*
209 * We destroy the scanner after reaching EOF,
210 * but anyway just to be sure get back to INIT state.
211 */
212<<EOF>> { BEGIN(INITIAL); }
213}
214
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215cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
216stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
217stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
218instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
219cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
220cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
221branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
222branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
223bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
224ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
225cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
226task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
227page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
228minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
229major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
230context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
231cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
232alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
233emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
d22d1a2a 234dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
89812fc8 235
ba32a451
KL
236 /*
237 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
238 * Because the prefix cycles is mixed up with cpu-cycles.
239 * loads and stores are mixed up with cache event
240 */
241cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
242cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
243mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
244mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
245
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246L1-dcache|l1-d|l1d|L1-data |
247L1-icache|l1-i|l1i|L1-instruction |
248LLC|L2 |
249dTLB|d-tlb|Data-TLB |
250iTLB|i-tlb|Instruction-TLB |
251branch|branches|bpu|btb|bpc |
ac20de6f 252node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
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253
254load|loads|read |
255store|stores|write |
256prefetch|prefetches |
257speculative-read|speculative-load |
258refs|Reference|ops|access |
ac20de6f 259misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
89812fc8 260
08d2f762 261mem: { BEGIN(mem); return PE_PREFIX_MEM; }
ac20de6f
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262r{num_raw_hex} { return raw(yyscanner); }
263{num_dec} { return value(yyscanner, 10); }
264{num_hex} { return value(yyscanner, 16); }
89812fc8 265
ac20de6f 266{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
ba32a451 267{name} { return pmu_str_check(yyscanner); }
ac2ba9f3 268"/" { BEGIN(config); return '/'; }
89812fc8 269- { return '-'; }
ac2ba9f3 270, { BEGIN(event); return ','; }
89812fc8 271: { return ':'; }
ac2ba9f3 272"{" { BEGIN(event); return '{'; }
89efb029 273"}" { return '}'; }
89812fc8 274= { return '='; }
8c5f0a84 275\n { }
82004223 276. { }
08d2f762 277
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278%%
279
1d037ca1 280int parse_events_wrap(void *scanner __maybe_unused)
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281{
282 return 1;
283}
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