diff options
Diffstat (limited to 'tools/perf/util/parse-events.y')
| -rw-r--r-- | tools/perf/util/parse-events.y | 263 |
1 files changed, 104 insertions, 159 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index d70f5d84af92..c94a3994177e 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -55,7 +55,7 @@ static void free_list_evsel(struct list_head* list_evsel) %} %token PE_START_EVENTS PE_START_TERMS -%token PE_VALUE PE_VALUE_SYM_HW PE_VALUE_SYM_SW PE_TERM +%token PE_VALUE PE_VALUE_SYM_SW PE_TERM %token PE_VALUE_SYM_TOOL %token PE_EVENT_NAME %token PE_RAW PE_NAME @@ -66,15 +66,13 @@ static void free_list_evsel(struct list_head* list_evsel) %token PE_DRV_CFG_TERM %token PE_TERM_HW %type <num> PE_VALUE -%type <num> PE_VALUE_SYM_HW %type <num> PE_VALUE_SYM_SW %type <num> PE_VALUE_SYM_TOOL +%type <mod> PE_MODIFIER_EVENT %type <term_type> PE_TERM -%type <num> value_sym %type <str> PE_RAW %type <str> PE_NAME %type <str> PE_LEGACY_CACHE -%type <str> PE_MODIFIER_EVENT %type <str> PE_MODIFIER_BP %type <str> PE_EVENT_NAME %type <str> PE_DRV_CFG_TERM @@ -87,6 +85,7 @@ static void free_list_evsel(struct list_head* list_evsel) %type <list_terms> opt_pmu_config %destructor { parse_events_terms__delete ($$); } <list_terms> %type <list_evsel> event_pmu +%type <list_evsel> event_legacy_hardware %type <list_evsel> event_legacy_symbol %type <list_evsel> event_legacy_cache %type <list_evsel> event_legacy_mem @@ -104,13 +103,14 @@ static void free_list_evsel(struct list_head* list_evsel) %destructor { free_list_evsel ($$); } <list_evsel> %type <tracepoint_name> tracepoint_name %destructor { free ($$.sys); free ($$.event); } <tracepoint_name> -%type <hardware_term> PE_TERM_HW -%destructor { free ($$.str); } <hardware_term> +%type <hardware_event> PE_TERM_HW +%destructor { free ($$.str); } <hardware_event> %union { char *str; u64 num; + struct parse_events_modifier mod; enum parse_events__term_type term_type; struct list_head *list_evsel; struct parse_events_terms *list_terms; @@ -119,13 +119,17 @@ static void free_list_evsel(struct list_head* list_evsel) char *sys; char *event; } tracepoint_name; - struct hardware_term { + struct hardware_event { char *str; u64 num; - } hardware_term; + } hardware_event; } %% + /* + * Entry points. We are either parsing events or terminals. Just terminal + * parsing is used for parsing events in sysfs. + */ start: PE_START_EVENTS start_events | @@ -133,31 +137,36 @@ PE_START_TERMS start_terms start_events: groups { + /* Take the parsed events, groups.. and place into parse_state. */ + struct list_head *groups = $1; struct parse_events_state *parse_state = _parse_state; - /* frees $1 */ - parse_events_update_lists($1, &parse_state->list); + list_splice_tail(groups, &parse_state->list); + free(groups); } -groups: +groups: /* A list of groups or events. */ groups ',' group { - struct list_head *list = $1; - struct list_head *group = $3; + /* Merge group into the list of events/groups. */ + struct list_head *groups = $1; + struct list_head *group = $3; - /* frees $3 */ - parse_events_update_lists(group, list); - $$ = list; + list_splice_tail(group, groups); + free(group); + $$ = groups; } | groups ',' event { - struct list_head *list = $1; + /* Merge event into the list of events/groups. */ + struct list_head *groups = $1; struct list_head *event = $3; - /* frees $3 */ - parse_events_update_lists(event, list); - $$ = list; + + list_splice_tail(event, groups); + free(event); + $$ = groups; } | group @@ -167,20 +176,13 @@ event group: group_def ':' PE_MODIFIER_EVENT { + /* Apply the modifier to the events in the group_def. */ struct list_head *list = $1; int err; - err = parse_events__modifier_group(list, $3); - free($3); - if (err) { - struct parse_events_state *parse_state = _parse_state; - struct parse_events_error *error = parse_state->error; - - parse_events_error__handle(error, @3.first_column, - strdup("Bad modifier"), NULL); - free_list_evsel(list); + err = parse_events__modifier_group(_parse_state, &@3, list, $3); + if (err) YYABORT; - } $$ = list; } | @@ -191,7 +193,10 @@ PE_NAME '{' events '}' { struct list_head *list = $3; - /* Takes ownership of $1. */ + /* + * Set the first entry of list to be the leader. Set the group name on + * the leader to $1 taking ownership. + */ parse_events__set_leader($1, list); $$ = list; } @@ -200,6 +205,7 @@ PE_NAME '{' events '}' { struct list_head *list = $2; + /* Set the first entry of list to be the leader clearing the group name. */ parse_events__set_leader(NULL, list); $$ = list; } @@ -207,12 +213,12 @@ PE_NAME '{' events '}' events: events ',' event { + struct list_head *events = $1; struct list_head *event = $3; - struct list_head *list = $1; - /* frees $3 */ - parse_events_update_lists(event, list); - $$ = list; + list_splice_tail(event, events); + free(event); + $$ = events; } | event @@ -230,17 +236,9 @@ event_name PE_MODIFIER_EVENT * (there could be more events added for multiple tracepoint * definitions via '*?'. */ - err = parse_events__modifier_event(list, $2, false); - free($2); - if (err) { - struct parse_events_state *parse_state = _parse_state; - struct parse_events_error *error = parse_state->error; - - parse_events_error__handle(error, @2.first_column, - strdup("Bad modifier"), NULL); - free_list_evsel(list); + err = parse_events__modifier_event(_parse_state, &@2, list, $2); + if (err) YYABORT; - } $$ = list; } | @@ -249,10 +247,14 @@ event_name event_name: PE_EVENT_NAME event_def { - int err; + /* + * When an event is parsed the text is rewound and the entire text of + * the event is set to the str of PE_EVENT_NAME token matched here. If + * no name was on an event via a term, set the name to the entire text + * taking ownership of the allocation. + */ + int err = parse_events__set_default_name($2, $1); - err = parse_events_name($2, $1); - free($1); if (err) { free_list_evsel($2); YYNOMEM; @@ -263,6 +265,7 @@ PE_EVENT_NAME event_def event_def event_def: event_pmu | + event_legacy_hardware | event_legacy_symbol | event_legacy_cache sep_dc | event_legacy_mem sep_dc | @@ -273,78 +276,15 @@ event_def: event_pmu | event_pmu: PE_NAME opt_pmu_config { - struct parse_events_state *parse_state = _parse_state; /* List of created evsels. */ struct list_head *list = NULL; - char *pattern = NULL; + int err = parse_events_multi_pmu_add_or_add_pmu(_parse_state, $1, $2, &list, &@1); -#define CLEANUP \ - do { \ - parse_events_terms__delete($2); \ - free(list); \ - free($1); \ - free(pattern); \ - } while(0) - - list = alloc_list(); - if (!list) { - CLEANUP; - YYNOMEM; - } - /* Attempt to add to list assuming $1 is a PMU name. */ - if (parse_events_add_pmu(parse_state, list, $1, $2, /*auto_merge_stats=*/false, &@1)) { - struct perf_pmu *pmu = NULL; - int ok = 0; - - /* Failure to add, try wildcard expansion of $1 as a PMU name. */ - if (asprintf(&pattern, "%s*", $1) < 0) { - CLEANUP; - YYNOMEM; - } - - while ((pmu = perf_pmus__scan(pmu)) != NULL) { - const char *name = pmu->name; - - if (parse_events__filter_pmu(parse_state, pmu)) - continue; - - if (!strncmp(name, "uncore_", 7) && - strncmp($1, "uncore_", 7)) - name += 7; - if (!perf_pmu__match(pattern, name, $1) || - !perf_pmu__match(pattern, pmu->alias_name, $1)) { - bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu); - - if (!parse_events_add_pmu(parse_state, list, pmu->name, $2, - auto_merge_stats, &@1)) { - ok++; - parse_state->wild_card_pmus = true; - } - } - } - - if (!ok) { - /* Failure to add, assume $1 is an event name. */ - zfree(&list); - ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list, &@1); - } - if (!ok) { - struct parse_events_error *error = parse_state->error; - char *help; - - if (asprintf(&help, "Unable to find PMU or event on a PMU of '%s'", $1) < 0) - help = NULL; - parse_events_error__handle(error, @1.first_column, - strdup("Bad event or PMU"), - help); - CLEANUP; - YYABORT; - } - } + parse_events_terms__delete($2); + free($1); + if (err) + PE_ABORT(err); $$ = list; - list = NULL; - CLEANUP; -#undef CLEANUP } | PE_NAME sep_dc @@ -352,7 +292,7 @@ PE_NAME sep_dc struct list_head *list; int err; - err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list, &@1); + err = parse_events_multi_pmu_add(_parse_state, $1, PERF_COUNT_HW_MAX, NULL, &list, &@1); if (err < 0) { struct parse_events_state *parse_state = _parse_state; struct parse_events_error *error = parse_state->error; @@ -368,24 +308,45 @@ PE_NAME sep_dc $$ = list; } -value_sym: -PE_VALUE_SYM_HW +event_legacy_hardware: +PE_TERM_HW opt_pmu_config +{ + /* List of created evsels. */ + struct list_head *list = NULL; + int err = parse_events_multi_pmu_add(_parse_state, $1.str, $1.num, $2, &list, &@1); + + free($1.str); + parse_events_terms__delete($2); + if (err) + PE_ABORT(err); + + $$ = list; +} | -PE_VALUE_SYM_SW +PE_TERM_HW sep_dc +{ + struct list_head *list; + int err; + + err = parse_events_multi_pmu_add(_parse_state, $1.str, $1.num, NULL, &list, &@1); + free($1.str); + if (err) + PE_ABORT(err); + $$ = list; +} event_legacy_symbol: -value_sym '/' event_config '/' +PE_VALUE_SYM_SW '/' event_config '/' { struct list_head *list; - int type = $1 >> 16; - int config = $1 & 255; int err; - bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE); list = alloc_list(); if (!list) YYNOMEM; - err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard); + err = parse_events_add_numeric(_parse_state, list, + /*type=*/PERF_TYPE_SOFTWARE, /*config=*/$1, + $3, /*wildcard=*/false); parse_events_terms__delete($3); if (err) { free_list_evsel(list); @@ -394,18 +355,17 @@ value_sym '/' event_config '/' $$ = list; } | -value_sym sep_slash_slash_dc +PE_VALUE_SYM_SW sep_slash_slash_dc { struct list_head *list; - int type = $1 >> 16; - int config = $1 & 255; - bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE); int err; list = alloc_list(); if (!list) YYNOMEM; - err = parse_events_add_numeric(_parse_state, list, type, config, /*head_config=*/NULL, wildcard); + err = parse_events_add_numeric(_parse_state, list, + /*type=*/PERF_TYPE_SOFTWARE, /*config=*/$1, + /*head_config=*/NULL, /*wildcard=*/false); if (err) PE_ABORT(err); $$ = list; @@ -537,7 +497,7 @@ tracepoint_name opt_event_config if (!list) YYNOMEM; - err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event, + err = parse_events_add_tracepoint(parse_state, list, $1.sys, $1.event, error, $2, &@1); parse_events_terms__delete($2); @@ -666,6 +626,11 @@ event_term } name_or_raw: PE_RAW | PE_NAME | PE_LEGACY_CACHE +| +PE_TERM_HW +{ + $$ = $1.str; +} event_term: PE_RAW @@ -707,20 +672,6 @@ name_or_raw '=' PE_VALUE $$ = term; } | -name_or_raw '=' PE_TERM_HW -{ - struct parse_events_term *term; - int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $3.str, &@1, &@3); - - if (err) { - free($1); - free($3.str); - PE_ABORT(err); - } - $$ = term; -} -| PE_LEGACY_CACHE { struct parse_events_term *term; @@ -773,18 +724,6 @@ PE_TERM '=' name_or_raw $$ = term; } | -PE_TERM '=' PE_TERM_HW -{ - struct parse_events_term *term; - int err = parse_events_term__str(&term, $1, /*config=*/NULL, $3.str, &@1, &@3); - - if (err) { - free($3.str); - PE_ABORT(err); - } - $$ = term; -} -| PE_TERM '=' PE_TERM { struct parse_events_term *term; @@ -845,9 +784,15 @@ sep_slash_slash_dc: '/' '/' | ':' | %% -void parse_events_error(YYLTYPE *loc, void *parse_state, +void parse_events_error(YYLTYPE *loc, void *_parse_state, void *scanner __maybe_unused, char const *msg __maybe_unused) { - parse_events_evlist_error(parse_state, loc->last_column, "parser error"); + struct parse_events_state *parse_state = _parse_state; + + if (!parse_state->error || !list_empty(&parse_state->error->list)) + return; + + parse_events_error__handle(parse_state->error, loc->last_column, + strdup("Unrecognized input"), NULL); } |