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-rw-r--r--tools/perf/util/parse-events.y526
1 files changed, 526 insertions, 0 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y
new file mode 100644
index 000000000..72def077d
--- /dev/null
+++ b/tools/perf/util/parse-events.y
@@ -0,0 +1,526 @@
+%pure-parser
+%parse-param {void *_data}
+%parse-param {void *scanner}
+%lex-param {void* scanner}
+
+%{
+
+#define YYDEBUG 1
+
+#include <linux/compiler.h>
+#include <linux/list.h>
+#include <linux/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)
+
+#define ALLOC_LIST(list) \
+do { \
+ list = malloc(sizeof(*list)); \
+ ABORT_ON(!list); \
+ INIT_LIST_HEAD(list); \
+} while (0)
+
+static inc_group_count(struct list_head *list,
+ struct parse_events_evlist *data)
+{
+ /* Count groups only have more than 1 members */
+ if (!list_is_last(list->next, list))
+ data->nr_groups++;
+}
+
+%}
+
+%token PE_START_EVENTS PE_START_TERMS
+%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_RAW PE_TERM
+%token PE_EVENT_NAME
+%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 PE_PREFIX_GROUP
+%token PE_ERROR
+%token PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT
+%type <num> PE_VALUE
+%type <num> PE_VALUE_SYM_HW
+%type <num> PE_VALUE_SYM_SW
+%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 <str> PE_EVENT_NAME
+%type <str> PE_PMU_EVENT_PRE PE_PMU_EVENT_SUF PE_KERNEL_PMU_EVENT
+%type <num> value_sym
+%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
+%type <head> event_mod
+%type <head> event_name
+%type <head> event
+%type <head> events
+%type <head> group_def
+%type <head> group
+%type <head> groups
+
+%union
+{
+ char *str;
+ u64 num;
+ struct list_head *head;
+ struct parse_events_term *term;
+}
+%%
+
+start:
+PE_START_EVENTS start_events
+|
+PE_START_TERMS start_terms
+
+start_events: groups
+{
+ struct parse_events_evlist *data = _data;
+
+ parse_events_update_lists($1, &data->list);
+}
+
+groups:
+groups ',' group
+{
+ struct list_head *list = $1;
+ struct list_head *group = $3;
+
+ parse_events_update_lists(group, list);
+ $$ = list;
+}
+|
+groups ',' event
+{
+ struct list_head *list = $1;
+ struct list_head *event = $3;
+
+ parse_events_update_lists(event, list);
+ $$ = list;
+}
+|
+group
+|
+event
+
+group:
+group_def ':' PE_MODIFIER_EVENT
+{
+ struct list_head *list = $1;
+
+ ABORT_ON(parse_events__modifier_group(list, $3));
+ $$ = list;
+}
+|
+group_def
+
+group_def:
+PE_NAME '{' events '}'
+{
+ struct list_head *list = $3;
+
+ inc_group_count(list, _data);
+ parse_events__set_leader($1, list);
+ $$ = list;
+}
+|
+'{' events '}'
+{
+ struct list_head *list = $2;
+
+ inc_group_count(list, _data);
+ parse_events__set_leader(NULL, list);
+ $$ = list;
+}
+
+events:
+events ',' event
+{
+ struct list_head *event = $3;
+ struct list_head *list = $1;
+
+ parse_events_update_lists(event, list);
+ $$ = list;
+}
+|
+event
+
+event: event_mod
+
+event_mod:
+event_name PE_MODIFIER_EVENT
+{
+ struct list_head *list = $1;
+
+ /*
+ * 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_event(list, $2, false));
+ $$ = list;
+}
+|
+event_name
+
+event_name:
+PE_EVENT_NAME event_def
+{
+ ABORT_ON(parse_events_name($2, $1));
+ free($1);
+ $$ = $2;
+}
+|
+event_def
+
+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_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_pmu(list, &data->idx, $1, $3));
+ parse_events__free_terms($3);
+ $$ = list;
+}
+|
+PE_NAME '/' '/'
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_pmu(list, &data->idx, $1, NULL));
+ $$ = list;
+}
+|
+PE_KERNEL_PMU_EVENT sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *head;
+ struct parse_events_term *term;
+ struct list_head *list;
+
+ ALLOC_LIST(head);
+ ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, 1));
+ list_add_tail(&term->list, head);
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head));
+ parse_events__free_terms(head);
+ $$ = list;
+}
+|
+PE_PMU_EVENT_PRE '-' PE_PMU_EVENT_SUF sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *head;
+ struct parse_events_term *term;
+ struct list_head *list;
+ char pmu_name[128];
+ snprintf(&pmu_name, 128, "%s-%s", $1, $3);
+
+ ALLOC_LIST(head);
+ ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ &pmu_name, 1));
+ list_add_tail(&term->list, head);
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_pmu(list, &data->idx, "cpu", head));
+ parse_events__free_terms(head);
+ $$ = list;
+}
+
+value_sym:
+PE_VALUE_SYM_HW
+|
+PE_VALUE_SYM_SW
+
+event_legacy_symbol:
+value_sym '/' event_config '/'
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+ int type = $1 >> 16;
+ int config = $1 & 255;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_numeric(list, &data->idx,
+ type, config, $3));
+ parse_events__free_terms($3);
+ $$ = list;
+}
+|
+value_sym sep_slash_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+ int type = $1 >> 16;
+ int config = $1 & 255;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_numeric(list, &data->idx,
+ type, config, NULL));
+ $$ = list;
+}
+
+event_legacy_cache:
+PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT '-' PE_NAME_CACHE_OP_RESULT
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_cache(list, &data->idx, $1, $3, $5));
+ $$ = list;
+}
+|
+PE_NAME_CACHE_TYPE '-' PE_NAME_CACHE_OP_RESULT
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_cache(list, &data->idx, $1, $3, NULL));
+ $$ = list;
+}
+|
+PE_NAME_CACHE_TYPE
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_cache(list, &data->idx, $1, NULL, NULL));
+ $$ = list;
+}
+
+event_legacy_mem:
+PE_PREFIX_MEM PE_VALUE '/' PE_VALUE ':' PE_MODIFIER_BP sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+ (void *) $2, $6, $4));
+ $$ = list;
+}
+|
+PE_PREFIX_MEM PE_VALUE '/' PE_VALUE sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+ (void *) $2, NULL, $4));
+ $$ = list;
+}
+|
+PE_PREFIX_MEM PE_VALUE ':' PE_MODIFIER_BP sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+ (void *) $2, $4, 0));
+ $$ = list;
+}
+|
+PE_PREFIX_MEM PE_VALUE sep_dc
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_breakpoint(list, &data->idx,
+ (void *) $2, NULL, 0));
+ $$ = list;
+}
+
+event_legacy_tracepoint:
+PE_NAME '-' PE_NAME ':' PE_NAME
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+ char sys_name[128];
+ snprintf(&sys_name, 128, "%s-%s", $1, $3);
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_tracepoint(list, &data->idx, &sys_name, $5));
+ $$ = list;
+}
+|
+PE_NAME ':' PE_NAME
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_tracepoint(list, &data->idx, $1, $3));
+ $$ = list;
+}
+
+event_legacy_numeric:
+PE_VALUE ':' PE_VALUE
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_numeric(list, &data->idx, (u32)$1, $3, NULL));
+ $$ = list;
+}
+
+event_legacy_raw:
+PE_RAW
+{
+ struct parse_events_evlist *data = _data;
+ struct list_head *list;
+
+ ALLOC_LIST(list);
+ ABORT_ON(parse_events_add_numeric(list, &data->idx,
+ PERF_TYPE_RAW, $1, NULL));
+ $$ = list;
+}
+
+start_terms: event_config
+{
+ struct parse_events_terms *data = _data;
+ data->terms = $1;
+}
+
+event_config:
+event_config ',' event_term
+{
+ struct list_head *head = $1;
+ struct parse_events_term *term = $3;
+
+ ABORT_ON(!head);
+ list_add_tail(&term->list, head);
+ $$ = $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));
+ $$ = term;
+}
+|
+PE_NAME '=' PE_VALUE_SYM_HW
+{
+ struct parse_events_term *term;
+ int config = $3 & 255;
+
+ ABORT_ON(parse_events_term__sym_hw(&term, $1, config));
+ $$ = term;
+}
+|
+PE_NAME
+{
+ struct parse_events_term *term;
+
+ ABORT_ON(parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER,
+ $1, 1));
+ $$ = term;
+}
+|
+PE_VALUE_SYM_HW
+{
+ struct parse_events_term *term;
+ int config = $1 & 255;
+
+ ABORT_ON(parse_events_term__sym_hw(&term, NULL, config));
+ $$ = term;
+}
+|
+PE_TERM '=' PE_NAME
+{
+ struct parse_events_term *term;
+
+ ABORT_ON(parse_events_term__str(&term, (int)$1, NULL, $3));
+ $$ = term;
+}
+|
+PE_TERM '=' PE_VALUE
+{
+ struct parse_events_term *term;
+
+ ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3));
+ $$ = term;
+}
+|
+PE_TERM
+{
+ struct parse_events_term *term;
+
+ ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1));
+ $$ = term;
+}
+
+sep_dc: ':' |
+
+sep_slash_dc: '/' | ':' |
+
+%%
+
+void parse_events_error(void *data __maybe_unused, void *scanner __maybe_unused,
+ char const *msg __maybe_unused)
+{
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-07 06:59:32 +0000