315 lines
6.0 KiB
Plaintext
315 lines
6.0 KiB
Plaintext
%pure-parser
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%name-prefix "parse_events_"
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%parse-param {void *_data}
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%parse-param {void *scanner}
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%lex-param {void* scanner}
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%{
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#define YYDEBUG 1
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#include <linux/compiler.h>
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#include <linux/list.h>
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#include "types.h"
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#include "util.h"
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#include "parse-events.h"
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#include "parse-events-bison.h"
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extern int parse_events_lex (YYSTYPE* lvalp, void* scanner);
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#define ABORT_ON(val) \
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do { \
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if (val) \
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YYABORT; \
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} while (0)
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%}
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%token PE_START_EVENTS PE_START_TERMS
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%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_RAW PE_TERM
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%token PE_NAME
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%token PE_MODIFIER_EVENT PE_MODIFIER_BP
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%token PE_NAME_CACHE_TYPE PE_NAME_CACHE_OP_RESULT
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%token PE_PREFIX_MEM PE_PREFIX_RAW
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%token PE_ERROR
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%type <num> PE_VALUE
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%type <num> PE_VALUE_SYM_HW
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%type <num> PE_VALUE_SYM_SW
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%type <num> PE_RAW
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%type <num> PE_TERM
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%type <str> PE_NAME
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%type <str> PE_NAME_CACHE_TYPE
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%type <str> PE_NAME_CACHE_OP_RESULT
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%type <str> PE_MODIFIER_EVENT
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%type <str> PE_MODIFIER_BP
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%type <num> value_sym
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%type <head> event_config
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%type <term> event_term
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%type <head> event_pmu
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%type <head> event_legacy_symbol
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%type <head> event_legacy_cache
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%type <head> event_legacy_mem
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%type <head> event_legacy_tracepoint
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%type <head> event_legacy_numeric
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%type <head> event_legacy_raw
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%type <head> event_def
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%union
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{
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char *str;
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unsigned long num;
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struct list_head *head;
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struct parse_events__term *term;
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}
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%%
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start:
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PE_START_EVENTS events
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PE_START_TERMS terms
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events:
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events ',' event | event
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event:
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event_def PE_MODIFIER_EVENT
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{
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struct parse_events_data__events *data = _data;
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/*
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* Apply modifier on all events added by single event definition
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* (there could be more events added for multiple tracepoint
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* definitions via '*?'.
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*/
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ABORT_ON(parse_events_modifier($1, $2));
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parse_events_update_lists($1, &data->list);
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}
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event_def
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{
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struct parse_events_data__events *data = _data;
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parse_events_update_lists($1, &data->list);
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}
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event_def: event_pmu |
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event_legacy_symbol |
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event_legacy_cache sep_dc |
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event_legacy_mem |
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event_legacy_tracepoint sep_dc |
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event_legacy_numeric sep_dc |
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event_legacy_raw sep_dc
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event_pmu:
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PE_NAME '/' event_config '/'
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_pmu(&list, &data->idx, $1, $3));
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parse_events__free_terms($3);
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$$ = list;
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}
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value_sym:
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PE_VALUE_SYM_HW
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PE_VALUE_SYM_SW
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event_legacy_symbol:
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value_sym '/' event_config '/'
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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int type = $1 >> 16;
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int config = $1 & 255;
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ABORT_ON(parse_events_add_numeric(&list, &data->idx,
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type, config, $3));
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parse_events__free_terms($3);
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$$ = list;
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}
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value_sym sep_slash_dc
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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int type = $1 >> 16;
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int config = $1 & 255;
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ABORT_ON(parse_events_add_numeric(&list, &data->idx,
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type, config, NULL));
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$$ = list;
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}
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event_legacy_cache:
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PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, $5));
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$$ = list;
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}
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PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, $3, NULL));
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$$ = list;
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}
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PE_NAME_CACHE_TYPE
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_cache(&list, &data->idx, $1, NULL, NULL));
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$$ = list;
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}
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event_legacy_mem:
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PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
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(void *) $2, $4));
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$$ = list;
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}
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PE_PREFIX_MEM PE_VALUE sep_dc
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_breakpoint(&list, &data->idx,
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(void *) $2, NULL));
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$$ = list;
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}
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event_legacy_tracepoint:
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PE_NAME ':' PE_NAME
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_tracepoint(&list, &data->idx, $1, $3));
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$$ = list;
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}
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event_legacy_numeric:
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PE_VALUE ':' PE_VALUE
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_numeric(&list, &data->idx, $1, $3, NULL));
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$$ = list;
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}
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event_legacy_raw:
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PE_RAW
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{
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struct parse_events_data__events *data = _data;
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struct list_head *list = NULL;
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ABORT_ON(parse_events_add_numeric(&list, &data->idx,
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PERF_TYPE_RAW, $1, NULL));
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$$ = list;
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}
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terms: event_config
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{
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struct parse_events_data__terms *data = _data;
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data->terms = $1;
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}
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event_config:
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event_config ',' event_term
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{
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struct list_head *head = $1;
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struct parse_events__term *term = $3;
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ABORT_ON(!head);
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list_add_tail(&term->list, head);
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$$ = $1;
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}
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event_term
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{
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struct list_head *head = malloc(sizeof(*head));
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struct parse_events__term *term = $1;
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ABORT_ON(!head);
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INIT_LIST_HEAD(head);
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list_add_tail(&term->list, head);
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$$ = head;
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}
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event_term:
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PE_NAME '=' PE_NAME
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_str(&term, PARSE_EVENTS__TERM_TYPE_USER,
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$1, $3));
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$$ = term;
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}
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PE_NAME '=' PE_VALUE
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_num(&term, PARSE_EVENTS__TERM_TYPE_USER,
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$1, $3));
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$$ = term;
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}
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PE_NAME
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_num(&term, PARSE_EVENTS__TERM_TYPE_USER,
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$1, 1));
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$$ = term;
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}
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PE_TERM '=' PE_NAME
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_str(&term, $1, NULL, $3));
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$$ = term;
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}
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PE_TERM '=' PE_VALUE
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_num(&term, $1, NULL, $3));
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$$ = term;
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}
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PE_TERM
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{
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struct parse_events__term *term;
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ABORT_ON(parse_events__term_num(&term, $1, NULL, 1));
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$$ = term;
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}
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sep_dc: ':' |
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sep_slash_dc: '/' | ':' |
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%%
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void parse_events_error(void *data __used, void *scanner __used,
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char const *msg __used)
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{
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}
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