Merge branch 'for-linus-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
[linux-2.6-block.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"
8f707d84 12#include "parse-events.h"
e571e029 13#include "parse-events-bison.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
ba32a451
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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
e571e029 114%x array
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115
116group [^,{}/]*[{][^}]*[}][^,{}/]*
117event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
118event [^,{}/]+
84c86ca1 119bpf_object .*\.(o|bpf)
d509db04 120bpf_source .*\.c
08d2f762 121
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122num_dec [0-9]+
123num_hex 0x[a-fA-F0-9]+
124num_raw_hex [a-fA-F0-9]+
5b021ddf 125name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
a34f3be7 126name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
e9a7c414 127/* If you add a modifier you need to update check_modifier() */
7f94af7a 128modifier_event [ukhpPGHSDI]+
7582732f 129modifier_bp [rwx]{1,3}
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130
131%%
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132
133%{
134 {
135 int start_token;
136
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137 start_token = parse_events_get_extra(yyscanner);
138
139 if (start_token == PE_START_TERMS)
140 BEGIN(config);
141 else if (start_token == PE_START_EVENTS)
142 BEGIN(event);
143
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144 if (start_token) {
145 parse_events_set_extra(NULL, yyscanner);
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146 /*
147 * The flex parser does not init locations variable
148 * via the scan_string interface, so we need do the
149 * init in here.
150 */
151 yycolumn = 0;
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152 return start_token;
153 }
154 }
155%}
156
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157<event>{
158
159{group} {
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160 BEGIN(INITIAL);
161 REWIND(0);
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162 }
163
164{event_pmu} |
84c86ca1 165{bpf_object} |
d509db04 166{bpf_source} |
ac2ba9f3 167{event} {
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168 BEGIN(INITIAL);
169 REWIND(1);
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170 return PE_EVENT_NAME;
171 }
172
ac2ba9f3 173<<EOF>> {
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174 BEGIN(INITIAL);
175 REWIND(0);
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176 }
177
178}
179
e571e029
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180<array>{
181"]" { BEGIN(config); return ']'; }
182{num_dec} { return value(yyscanner, 10); }
183{num_hex} { return value(yyscanner, 16); }
184, { return ','; }
185"\.\.\." { return PE_ARRAY_RANGE; }
186}
187
82004223 188<config>{
e64b020b 189 /*
17cb5f84 190 * Please update config_term_names when new static term is added.
e64b020b 191 */
82004223
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192config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
193config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
194config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
195name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
196period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
09af2a55 197freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
82004223 198branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
32067712 199time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
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200call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
201stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
792d48b4 202max-stack { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_STACK); }
374ce938
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203inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
204no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
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205overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
206no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
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207, { return ','; }
208"/" { BEGIN(INITIAL); return '/'; }
209{name_minus} { return str(yyscanner, PE_NAME); }
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210\[all\] { return PE_ARRAY_ALL; }
211"[" { BEGIN(array); return '['; }
82004223
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212}
213
214<mem>{
215{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
216: { return ':'; }
3741eb9f 217"/" { return '/'; }
82004223
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218{num_dec} { return value(yyscanner, 10); }
219{num_hex} { return value(yyscanner, 16); }
220 /*
221 * We need to separate 'mem:' scanner part, in order to get specific
222 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
223 * and we'd need to parse it manually. During the escape from <mem>
224 * state we need to put the escaping char back, so we dont miss it.
225 */
226. { unput(*yytext); BEGIN(INITIAL); }
227 /*
228 * We destroy the scanner after reaching EOF,
229 * but anyway just to be sure get back to INIT state.
230 */
231<<EOF>> { BEGIN(INITIAL); }
232}
233
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234cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
235stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
236stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
237instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
238cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
239cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
240branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
241branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
242bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
243ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
244cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
245task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
246page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
247minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
248major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
249context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
250cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
251alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
252emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
d22d1a2a 253dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
03e0a7df 254bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
89812fc8 255
ba32a451
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256 /*
257 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
258 * Because the prefix cycles is mixed up with cpu-cycles.
259 * loads and stores are mixed up with cache event
260 */
261cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
262cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
263mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
264mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
44b1e60a 265topdown-[a-z-]+ { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
ba32a451 266
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267L1-dcache|l1-d|l1d|L1-data |
268L1-icache|l1-i|l1i|L1-instruction |
269LLC|L2 |
270dTLB|d-tlb|Data-TLB |
271iTLB|i-tlb|Instruction-TLB |
272branch|branches|bpu|btb|bpc |
ac20de6f 273node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
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274
275load|loads|read |
276store|stores|write |
277prefetch|prefetches |
278speculative-read|speculative-load |
279refs|Reference|ops|access |
ac20de6f 280misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
89812fc8 281
08d2f762 282mem: { BEGIN(mem); return PE_PREFIX_MEM; }
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283r{num_raw_hex} { return raw(yyscanner); }
284{num_dec} { return value(yyscanner, 10); }
285{num_hex} { return value(yyscanner, 16); }
89812fc8 286
ac20de6f 287{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
84c86ca1 288{bpf_object} { return str(yyscanner, PE_BPF_OBJECT); }
d509db04 289{bpf_source} { return str(yyscanner, PE_BPF_SOURCE); }
ba32a451 290{name} { return pmu_str_check(yyscanner); }
ac2ba9f3 291"/" { BEGIN(config); return '/'; }
89812fc8 292- { return '-'; }
ac2ba9f3 293, { BEGIN(event); return ','; }
89812fc8 294: { return ':'; }
ac2ba9f3 295"{" { BEGIN(event); return '{'; }
89efb029 296"}" { return '}'; }
89812fc8 297= { return '='; }
8c5f0a84 298\n { }
82004223 299. { }
08d2f762 300
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301%%
302
1d037ca1 303int parse_events_wrap(void *scanner __maybe_unused)
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304{
305 return 1;
306}