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