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1
2%option reentrant
3%option bison-bridge
4%option prefix="parse_events_"
5%option stack
6%option bison-locations
7%option yylineno
8
9%{
10#include <errno.h>
11#include "../perf.h"
12#include "parse-events.h"
13#include "parse-events-bison.h"
14
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)
19{
20 u64 num;
21
22 errno = 0;
23 num = strtoull(str, NULL, base);
24 if (errno)
25 return PE_ERROR;
26
27 yylval->num = num;
28 return token;
29}
30
31static int value(yyscan_t scanner, int base)
32{
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);
37}
38
39static int raw(yyscan_t scanner)
40{
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);
45}
46
47static int str(yyscan_t scanner, int token)
48{
49 YYSTYPE *yylval = parse_events_get_lval(scanner);
50 char *text = parse_events_get_text(scanner);
51
52 yylval->str = strdup(text);
53 return token;
54}
55
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
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
86static int sym(yyscan_t scanner, int type, int config)
87{
88 YYSTYPE *yylval = parse_events_get_lval(scanner);
89
90 yylval->num = (type << 16) + config;
91 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
92}
93
94static int term(yyscan_t scanner, int type)
95{
96 YYSTYPE *yylval = parse_events_get_lval(scanner);
97
98 yylval->num = type;
99 return PE_TERM;
100}
101
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
109%}
110
111%x mem
112%s config
113%x event
114%x array
115
116group [^,{}/]*[{][^}]*[}][^,{}/]*
117event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
118event [^,{}/]+
119bpf_object .*\.(o|bpf)
120bpf_source .*\.c
121
122num_dec [0-9]+
123num_hex 0x[a-fA-F0-9]+
124num_raw_hex [a-fA-F0-9]+
125name [a-zA-Z_*?][a-zA-Z0-9_*?.]*
126name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
127/* If you add a modifier you need to update check_modifier() */
128modifier_event [ukhpPGHSDI]+
129modifier_bp [rwx]{1,3}
130
131%%
132
133%{
134 {
135 int start_token;
136
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
144 if (start_token) {
145 parse_events_set_extra(NULL, yyscanner);
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;
152 return start_token;
153 }
154 }
155%}
156
157<event>{
158
159{group} {
160 BEGIN(INITIAL);
161 REWIND(0);
162 }
163
164{event_pmu} |
165{bpf_object} |
166{bpf_source} |
167{event} {
168 BEGIN(INITIAL);
169 REWIND(1);
170 return PE_EVENT_NAME;
171 }
172
173<<EOF>> {
174 BEGIN(INITIAL);
175 REWIND(0);
176 }
177
178}
179
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
188<config>{
189 /*
190 * Please update config_term_names when new static term is added.
191 */
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); }
197freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
198branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
199time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
200call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
201stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
202inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
203no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
204, { return ','; }
205"/" { BEGIN(INITIAL); return '/'; }
206{name_minus} { return str(yyscanner, PE_NAME); }
207\[all\] { return PE_ARRAY_ALL; }
208"[" { BEGIN(array); return '['; }
209}
210
211<mem>{
212{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
213: { return ':'; }
214"/" { return '/'; }
215{num_dec} { return value(yyscanner, 10); }
216{num_hex} { return value(yyscanner, 16); }
217 /*
218 * We need to separate 'mem:' scanner part, in order to get specific
219 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
220 * and we'd need to parse it manually. During the escape from <mem>
221 * state we need to put the escaping char back, so we dont miss it.
222 */
223. { unput(*yytext); BEGIN(INITIAL); }
224 /*
225 * We destroy the scanner after reaching EOF,
226 * but anyway just to be sure get back to INIT state.
227 */
228<<EOF>> { BEGIN(INITIAL); }
229}
230
231cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
232stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
233stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
234instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
235cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
236cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
237branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
238branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
239bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
240ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
241cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
242task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
243page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
244minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
245major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
246context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
247cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
248alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
249emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
250dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
251bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
252
253 /*
254 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
255 * Because the prefix cycles is mixed up with cpu-cycles.
256 * loads and stores are mixed up with cache event
257 */
258cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
259cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
260mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
261mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
262
263L1-dcache|l1-d|l1d|L1-data |
264L1-icache|l1-i|l1i|L1-instruction |
265LLC|L2 |
266dTLB|d-tlb|Data-TLB |
267iTLB|i-tlb|Instruction-TLB |
268branch|branches|bpu|btb|bpc |
269node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
270
271load|loads|read |
272store|stores|write |
273prefetch|prefetches |
274speculative-read|speculative-load |
275refs|Reference|ops|access |
276misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
277
278mem: { BEGIN(mem); return PE_PREFIX_MEM; }
279r{num_raw_hex} { return raw(yyscanner); }
280{num_dec} { return value(yyscanner, 10); }
281{num_hex} { return value(yyscanner, 16); }
282
283{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
284{bpf_object} { return str(yyscanner, PE_BPF_OBJECT); }
285{bpf_source} { return str(yyscanner, PE_BPF_SOURCE); }
286{name} { return pmu_str_check(yyscanner); }
287"/" { BEGIN(config); return '/'; }
288- { return '-'; }
289, { BEGIN(event); return ','; }
290: { return ':'; }
291"{" { BEGIN(event); return '{'; }
292"}" { return '}'; }
293= { return '='; }
294\n { }
295. { }
296
297%%
298
299int parse_events_wrap(void *scanner __maybe_unused)
300{
301 return 1;
302}
1
2%option reentrant
3%option bison-bridge
4%option prefix="parse_events_"
5%option stack
6%option bison-locations
7%option yylineno
8%option reject
9
10%{
11#include <errno.h>
12#include <sys/types.h>
13#include <sys/stat.h>
14#include <unistd.h>
15#include "parse-events.h"
16#include "parse-events-bison.h"
17#include "evsel.h"
18
19char *parse_events_get_text(yyscan_t yyscanner);
20YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
21
22static int __value(YYSTYPE *yylval, char *str, int base, int token)
23{
24 u64 num;
25
26 errno = 0;
27 num = strtoull(str, NULL, base);
28 if (errno)
29 return PE_ERROR;
30
31 yylval->num = num;
32 return token;
33}
34
35static int value(yyscan_t scanner, int base)
36{
37 YYSTYPE *yylval = parse_events_get_lval(scanner);
38 char *text = parse_events_get_text(scanner);
39
40 return __value(yylval, text, base, PE_VALUE);
41}
42
43static int str(yyscan_t scanner, int token)
44{
45 YYSTYPE *yylval = parse_events_get_lval(scanner);
46 char *text = parse_events_get_text(scanner);
47
48 if (text[0] != '\'') {
49 yylval->str = strdup(text);
50 } else {
51 /*
52 * If a text tag specified on the command line
53 * contains opening single quite ' then it is
54 * expected that the tag ends with single quote
55 * as well, like this:
56 * name=\'CPU_CLK_UNHALTED.THREAD:cmask=1\'
57 * quotes need to be escaped to bypass shell
58 * processing.
59 */
60 yylval->str = strndup(&text[1], strlen(text) - 2);
61 }
62
63 return token;
64}
65
66static int raw(yyscan_t scanner)
67{
68 YYSTYPE *yylval = parse_events_get_lval(scanner);
69 char *text = parse_events_get_text(scanner);
70
71 if (perf_pmu__parse_check(text) == PMU_EVENT_SYMBOL)
72 return str(scanner, PE_NAME);
73
74 return __value(yylval, text + 1, 16, PE_RAW);
75}
76
77static bool isbpf_suffix(char *text)
78{
79 int len = strlen(text);
80
81 if (len < 2)
82 return false;
83 if ((text[len - 1] == 'c' || text[len - 1] == 'o') &&
84 text[len - 2] == '.')
85 return true;
86 if (len > 4 && !strcmp(text + len - 4, ".obj"))
87 return true;
88 return false;
89}
90
91static bool isbpf(yyscan_t scanner)
92{
93 char *text = parse_events_get_text(scanner);
94 struct stat st;
95
96 if (!isbpf_suffix(text))
97 return false;
98
99 return stat(text, &st) == 0;
100}
101
102/*
103 * This function is called when the parser gets two kind of input:
104 *
105 * @cfg1 or @cfg2=config
106 *
107 * The leading '@' is stripped off before 'cfg1' and 'cfg2=config' are given to
108 * bison. In the latter case it is necessary to keep the string intact so that
109 * the PMU kernel driver can determine what configurable is associated to
110 * 'config'.
111 */
112static int drv_str(yyscan_t scanner, int token)
113{
114 YYSTYPE *yylval = parse_events_get_lval(scanner);
115 char *text = parse_events_get_text(scanner);
116
117 /* Strip off the '@' */
118 yylval->str = strdup(text + 1);
119 return token;
120}
121
122#define REWIND(__alloc) \
123do { \
124 YYSTYPE *__yylval = parse_events_get_lval(yyscanner); \
125 char *text = parse_events_get_text(yyscanner); \
126 \
127 if (__alloc) \
128 __yylval->str = strdup(text); \
129 \
130 yycolumn -= strlen(text); \
131 yyless(0); \
132} while (0)
133
134static int pmu_str_check(yyscan_t scanner, struct parse_events_state *parse_state)
135{
136 YYSTYPE *yylval = parse_events_get_lval(scanner);
137 char *text = parse_events_get_text(scanner);
138
139 yylval->str = strdup(text);
140
141 /*
142 * If we're not testing then parse check determines the PMU event type
143 * which if it isn't a PMU returns PE_NAME. When testing the result of
144 * parse check can't be trusted so we return PE_PMU_EVENT_FAKE unless
145 * an '!' is present in which case the text can't be a PMU name.
146 */
147 switch (perf_pmu__parse_check(text)) {
148 case PMU_EVENT_SYMBOL_PREFIX:
149 return PE_PMU_EVENT_PRE;
150 case PMU_EVENT_SYMBOL_SUFFIX:
151 return PE_PMU_EVENT_SUF;
152 case PMU_EVENT_SYMBOL_SUFFIX2:
153 return PE_PMU_EVENT_SUF2;
154 case PMU_EVENT_SYMBOL:
155 return parse_state->fake_pmu
156 ? PE_PMU_EVENT_FAKE : PE_KERNEL_PMU_EVENT;
157 default:
158 return parse_state->fake_pmu && !strchr(text,'!')
159 ? PE_PMU_EVENT_FAKE : PE_NAME;
160 }
161}
162
163static int sym(yyscan_t scanner, int type, int config)
164{
165 YYSTYPE *yylval = parse_events_get_lval(scanner);
166
167 yylval->num = (type << 16) + config;
168 return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
169}
170
171static int tool(yyscan_t scanner, enum perf_tool_event event)
172{
173 YYSTYPE *yylval = parse_events_get_lval(scanner);
174
175 yylval->num = event;
176 return PE_VALUE_SYM_TOOL;
177}
178
179static int term(yyscan_t scanner, int type)
180{
181 YYSTYPE *yylval = parse_events_get_lval(scanner);
182
183 yylval->num = type;
184 return PE_TERM;
185}
186
187#define YY_USER_ACTION \
188do { \
189 yylloc->last_column = yylloc->first_column; \
190 yylloc->first_column = yycolumn; \
191 yycolumn += yyleng; \
192} while (0);
193
194#define USER_REJECT \
195 yycolumn -= yyleng; \
196 REJECT
197
198%}
199
200%x mem
201%s config
202%x event
203%x array
204
205group [^,{}/]*[{][^}]*[}][^,{}/]*
206event_pmu [^,{}/]+[/][^/]*[/][^,{}/]*
207event [^,{}/]+
208bpf_object [^,{}]+\.(o|bpf)[a-zA-Z0-9._]*
209bpf_source [^,{}]+\.c[a-zA-Z0-9._]*
210
211num_dec [0-9]+
212num_hex 0x[a-fA-F0-9]+
213num_raw_hex [a-fA-F0-9]+
214name [a-zA-Z_*?\[\]][a-zA-Z0-9_*?.\[\]!]*
215name_tag [\'][a-zA-Z_*?\[\]][a-zA-Z0-9_*?\-,\.\[\]:=]*[\']
216name_minus [a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
217drv_cfg_term [a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
218/* If you add a modifier you need to update check_modifier() */
219modifier_event [ukhpPGHSDIWeb]+
220modifier_bp [rwx]{1,3}
221
222%%
223
224%{
225 struct parse_events_state *_parse_state = parse_events_get_extra(yyscanner);
226
227 {
228 int start_token = _parse_state->stoken;
229
230 if (start_token == PE_START_TERMS)
231 BEGIN(config);
232 else if (start_token == PE_START_EVENTS)
233 BEGIN(event);
234
235 if (start_token) {
236 _parse_state->stoken = 0;
237 /*
238 * The flex parser does not init locations variable
239 * via the scan_string interface, so we need do the
240 * init in here.
241 */
242 yycolumn = 0;
243 return start_token;
244 }
245 }
246%}
247
248<event>{
249
250{group} {
251 BEGIN(INITIAL);
252 REWIND(0);
253 }
254
255{event_pmu} |
256{bpf_object} |
257{bpf_source} |
258{event} {
259 BEGIN(INITIAL);
260 REWIND(1);
261 return PE_EVENT_NAME;
262 }
263
264<<EOF>> {
265 BEGIN(INITIAL);
266 REWIND(0);
267 }
268, {
269 return ',';
270 }
271}
272
273<array>{
274"]" { BEGIN(config); return ']'; }
275{num_dec} { return value(yyscanner, 10); }
276{num_hex} { return value(yyscanner, 16); }
277, { return ','; }
278"\.\.\." { return PE_ARRAY_RANGE; }
279}
280
281<config>{
282 /*
283 * Please update config_term_names when new static term is added.
284 */
285config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
286config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
287config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
288name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
289period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
290freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
291branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
292time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
293call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
294stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
295max-stack { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_STACK); }
296nr { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_EVENTS); }
297inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
298no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
299overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
300no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
301percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
302aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
303aux-sample-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
304metric-id { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); }
305r{num_raw_hex} { return raw(yyscanner); }
306r0x{num_raw_hex} { return raw(yyscanner); }
307, { return ','; }
308"/" { BEGIN(INITIAL); return '/'; }
309{name_minus} { return str(yyscanner, PE_NAME); }
310\[all\] { return PE_ARRAY_ALL; }
311"[" { BEGIN(array); return '['; }
312@{drv_cfg_term} { return drv_str(yyscanner, PE_DRV_CFG_TERM); }
313}
314
315<mem>{
316{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
317: { return ':'; }
318"/" { return '/'; }
319{num_dec} { return value(yyscanner, 10); }
320{num_hex} { return value(yyscanner, 16); }
321 /*
322 * We need to separate 'mem:' scanner part, in order to get specific
323 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
324 * and we'd need to parse it manually. During the escape from <mem>
325 * state we need to put the escaping char back, so we dont miss it.
326 */
327. { unput(*yytext); BEGIN(INITIAL); }
328 /*
329 * We destroy the scanner after reaching EOF,
330 * but anyway just to be sure get back to INIT state.
331 */
332<<EOF>> { BEGIN(INITIAL); }
333}
334
335cpu-cycles|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
336stalled-cycles-frontend|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
337stalled-cycles-backend|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
338instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
339cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
340cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
341branch-instructions|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
342branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
343bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
344ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
345cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
346task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
347page-faults|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
348minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
349major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
350context-switches|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
351cpu-migrations|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
352alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
353emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
354dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
355duration_time { return tool(yyscanner, PERF_TOOL_DURATION_TIME); }
356user_time { return tool(yyscanner, PERF_TOOL_USER_TIME); }
357system_time { return tool(yyscanner, PERF_TOOL_SYSTEM_TIME); }
358bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
359cgroup-switches { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CGROUP_SWITCHES); }
360
361 /*
362 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
363 * Because the prefix cycles is mixed up with cpu-cycles.
364 * loads and stores are mixed up with cache event
365 */
366cycles-ct |
367cycles-t |
368mem-loads |
369mem-loads-aux |
370mem-stores |
371topdown-[a-z-]+ |
372tx-capacity-[a-z-]+ |
373el-capacity-[a-z-]+ { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
374
375L1-dcache|l1-d|l1d|L1-data |
376L1-icache|l1-i|l1i|L1-instruction |
377LLC|L2 |
378dTLB|d-tlb|Data-TLB |
379iTLB|i-tlb|Instruction-TLB |
380branch|branches|bpu|btb|bpc |
381node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
382
383load|loads|read |
384store|stores|write |
385prefetch|prefetches |
386speculative-read|speculative-load |
387refs|Reference|ops|access |
388misses|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
389
390mem: { BEGIN(mem); return PE_PREFIX_MEM; }
391r{num_raw_hex} { return raw(yyscanner); }
392{num_dec} { return value(yyscanner, 10); }
393{num_hex} { return value(yyscanner, 16); }
394
395{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
396{bpf_object} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_OBJECT); }
397{bpf_source} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_SOURCE); }
398{name} { return pmu_str_check(yyscanner, _parse_state); }
399{name_tag} { return str(yyscanner, PE_NAME); }
400"/" { BEGIN(config); return '/'; }
401- { return '-'; }
402, { BEGIN(event); return ','; }
403: { return ':'; }
404"{" { BEGIN(event); return '{'; }
405"}" { return '}'; }
406= { return '='; }
407\n { }
408. { }
409
410%%
411
412int parse_events_wrap(void *scanner __maybe_unused)
413{
414 return 1;
415}