1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
|
%pure-parser
%name-prefix "parse_events_"
%parse-param {void *_data}
%parse-param {void *scanner}
%lex-param {void* scanner}
%{
#define YYDEBUG 1
#include <linux/compiler.h>
#include <linux/list.h>
#include "types.h"
#include "util.h"
#include "parse-events.h"
#include "parse-events-bison.h"
extern int parse_events_lex (YYSTYPE* lvalp, void* scanner);
#define ABORT_ON(val) \
do { \
if (val) \
YYABORT; \
} while (0)
%}
%token PE_VALUE PE_VALUE_SYM PE_RAW PE_TERM
%token PE_NAME
%token PE_MODIFIER_EVENT PE_MODIFIER_BP
%token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT
%token PE_PREFIX_MEM PE_PREFIX_RAW
%token PE_ERROR
%type <num> PE_VALUE
%type <num> PE_VALUE_SYM
%type <num> PE_RAW
%type <num> PE_TERM
%type <str> PE_NAME
%type <str> PE_NAME_CACHE_TYPE
%type <str> PE_NAME_CACHE_OP_RESULT
%type <str> PE_MODIFIER_EVENT
%type <str> PE_MODIFIER_BP
%type <head> event_config
%type <term> event_term
%type <head> event_pmu
%type <head> event_legacy_symbol
%type <head> event_legacy_cache
%type <head> event_legacy_mem
%type <head> event_legacy_tracepoint
%type <head> event_legacy_numeric
%type <head> event_legacy_raw
%type <head> event_def
%union
{
char *str;
unsigned long num;
struct list_head *head;
struct parse_events__term *term;
}
%%
events:
events ',' event | event
event:
event_def PE_MODIFIER_EVENT
{
struct parse_events_data__events *data = _data;
/*
* Apply modifier on all events added by single event definition
* (there could be more events added for multiple tracepoint
* definitions via '*?'.
*/
ABORT_ON(parse_events_modifier($1, $2));
parse_events_update_lists($1, &data->list);
}
|
event_def
{
struct parse_events_data__events *data = _data;
parse_events_update_lists($1, &data->list);
}
event_def: event_pmu |
event_legacy_symbol |
event_legacy_cache sep_dc |
event_legacy_mem |
event_legacy_tracepoint sep_dc |
event_legacy_numeric sep_dc |
event_legacy_raw sep_dc
event_pmu:
PE_NAME '/' event_config '/'
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_pmu(&list, &data->idx, $1, $3));
parse_events__free_terms($3);
$$ = list;
}
event_legacy_symbol:
PE_VALUE_SYM '/' event_config '/'
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
int type = $1 >> 16;
int config = $1 & 255;
ABORT_ON(parse_events_add_numeric(&list, &data->idx,
type, config, $3));
parse_events__free_terms($3);
$$ = list;
}
|
PE_VALUE_SYM sep_slash_dc
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
int type = $1 >> 16;
int config = $1 & 255;
ABORT_ON(parse_events_add_numeric(&list, &data->idx,
type, config, NULL));
$$ = list;
}
event_legacy_cache:
PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, $5));
$$ = list;
}
|
PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, NULL));
$$ = list;
}
|
PE_NAME_CACHE_TYPE
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, NULL, NULL));
$$ = list;
}
event_legacy_mem:
PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
(void *) $2, $4));
$$ = list;
}
|
PE_PREFIX_MEM PE_VALUE sep_dc
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
(void *) $2, NULL));
$$ = list;
}
event_legacy_tracepoint:
PE_NAME ':' PE_NAME
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_tracepoint(&list, &data->idx, $1, $3));
$$ = list;
}
event_legacy_numeric:
PE_VALUE ':' PE_VALUE
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_numeric(&list, &data->idx, $1, $3, NULL));
$$ = list;
}
event_legacy_raw:
PE_RAW
{
struct parse_events_data__events *data = _data;
struct list_head *list = NULL;
ABORT_ON(parse_events_add_numeric(&list, &data->idx,
PERF_TYPE_RAW, $1, NULL));
$$ = list;
}
event_config:
event_config ',' event_term
{
struct list_head *head = $1;
struct parse_events__term *term = $3;
ABORT_ON(!head);
list_add_tail(&term->list, head);
$$ = $1;
}
|
event_term
{
struct list_head *head = malloc(sizeof(*head));
struct parse_events__term *term = $1;
ABORT_ON(!head);
INIT_LIST_HEAD(head);
list_add_tail(&term->list, head);
$$ = head;
}
event_term:
PE_NAME '=' PE_NAME
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_str(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, $3));
$$ = term;
}
|
PE_NAME '=' PE_VALUE
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, $3));
$$ = term;
}
|
PE_NAME
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_num(&term, PARSE_EVENTS__TERM_TYPE_USER,
$1, 1));
$$ = term;
}
|
PE_TERM '=' PE_NAME
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_str(&term, $1, NULL, $3));
$$ = term;
}
|
PE_TERM '=' PE_VALUE
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_num(&term, $1, NULL, $3));
$$ = term;
}
|
PE_TERM
{
struct parse_events__term *term;
ABORT_ON(parse_events__term_num(&term, $1, NULL, 1));
$$ = term;
}
sep_dc: ':' |
sep_slash_dc: '/' | ':' |
%%
void parse_events_error(void *data __used, void *scanner __used,
char const *msg __used)
{
}
|
