diff options
Diffstat (limited to 'tools/perf/util/parse-events.y')
-rw-r--r-- | tools/perf/util/parse-events.y | 448 |
1 files changed, 162 insertions, 286 deletions
diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index 9f28d4b5502f..21bfe7e0d944 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -20,12 +20,14 @@ #include "parse-events.h" #include "parse-events-bison.h" +int parse_events_lex(YYSTYPE * yylval_param, YYLTYPE * yylloc_param , void *yyscanner); void parse_events_error(YYLTYPE *loc, void *parse_state, void *scanner, char const *msg); -#define ABORT_ON(val) \ +#define PE_ABORT(val) \ do { \ - if (val) \ - YYABORT; \ + if (val == -ENOMEM) \ + YYNOMEM; \ + YYABORT; \ } while (0) static struct list_head* alloc_list(void) @@ -58,13 +60,10 @@ static void free_list_evsel(struct list_head* list_evsel) %token PE_VALUE_SYM_TOOL %token PE_EVENT_NAME %token PE_RAW PE_NAME -%token PE_BPF_OBJECT PE_BPF_SOURCE %token PE_MODIFIER_EVENT PE_MODIFIER_BP PE_BP_COLON PE_BP_SLASH %token PE_LEGACY_CACHE -%token PE_PREFIX_MEM PE_PREFIX_RAW PE_PREFIX_GROUP +%token PE_PREFIX_MEM %token PE_ERROR -%token PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE -%token PE_ARRAY_ALL PE_ARRAY_RANGE %token PE_DRV_CFG_TERM %token PE_TERM_HW %type <num> PE_VALUE @@ -75,13 +74,10 @@ static void free_list_evsel(struct list_head* list_evsel) %type <num> value_sym %type <str> PE_RAW %type <str> PE_NAME -%type <str> PE_BPF_OBJECT -%type <str> PE_BPF_SOURCE %type <str> PE_LEGACY_CACHE %type <str> PE_MODIFIER_EVENT %type <str> PE_MODIFIER_BP %type <str> PE_EVENT_NAME -%type <str> PE_KERNEL_PMU_EVENT PE_PMU_EVENT_FAKE %type <str> PE_DRV_CFG_TERM %type <str> name_or_raw name_or_legacy %destructor { free ($$); } <str> @@ -98,7 +94,6 @@ static void free_list_evsel(struct list_head* list_evsel) %type <list_evsel> event_legacy_tracepoint %type <list_evsel> event_legacy_numeric %type <list_evsel> event_legacy_raw -%type <list_evsel> event_bpf_file %type <list_evsel> event_def %type <list_evsel> event_mod %type <list_evsel> event_name @@ -109,11 +104,6 @@ static void free_list_evsel(struct list_head* list_evsel) %type <list_evsel> groups %destructor { free_list_evsel ($$); } <list_evsel> %type <tracepoint_name> tracepoint_name -%destructor { free ($$.sys); free ($$.event); } <tracepoint_name> -%type <array> array -%type <array> array_term -%type <array> array_terms -%destructor { free ($$.ranges); } <array> %type <hardware_term> PE_TERM_HW %destructor { free ($$.str); } <hardware_term> @@ -128,7 +118,6 @@ static void free_list_evsel(struct list_head* list_evsel) char *sys; char *event; } tracepoint_name; - struct parse_events_array array; struct hardware_term { char *str; u64 num; @@ -265,7 +254,7 @@ PE_EVENT_NAME event_def free($1); if (err) { free_list_evsel($2); - YYABORT; + YYNOMEM; } $$ = $2; } @@ -278,47 +267,47 @@ event_def: event_pmu | event_legacy_mem sep_dc | event_legacy_tracepoint sep_dc | event_legacy_numeric sep_dc | - event_legacy_raw sep_dc | - event_bpf_file + event_legacy_raw sep_dc event_pmu: PE_NAME opt_pmu_config { struct parse_events_state *parse_state = _parse_state; - struct parse_events_error *error = parse_state->error; struct list_head *list = NULL, *orig_terms = NULL, *terms= NULL; char *pattern = NULL; -#define CLEANUP_YYABORT \ +#define CLEANUP \ do { \ parse_events_terms__delete($2); \ parse_events_terms__delete(orig_terms); \ free(list); \ free($1); \ free(pattern); \ - YYABORT; \ } while(0) - if (parse_events_copy_term_list($2, &orig_terms)) - CLEANUP_YYABORT; - - if (error) - error->idx = @1.first_column; + if (parse_events_copy_term_list($2, &orig_terms)) { + CLEANUP; + YYNOMEM; + } list = alloc_list(); - if (!list) - CLEANUP_YYABORT; + 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)) { + 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_YYABORT; + if (asprintf(&pattern, "%s*", $1) < 0) { + CLEANUP; + YYNOMEM; + } while ((pmu = perf_pmus__scan(pmu)) != NULL) { - char *name = pmu->name; + const char *name = pmu->name; if (parse_events__filter_pmu(parse_state, pmu)) continue; @@ -330,10 +319,12 @@ PE_NAME opt_pmu_config !perf_pmu__match(pattern, pmu->alias_name, $1)) { bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu); - if (parse_events_copy_term_list(orig_terms, &terms)) - CLEANUP_YYABORT; + if (parse_events_copy_term_list(orig_terms, &terms)) { + CLEANUP; + YYNOMEM; + } if (!parse_events_add_pmu(parse_state, list, pmu->name, terms, - auto_merge_stats)) { + auto_merge_stats, &@1)) { ok++; parse_state->wild_card_pmus = true; } @@ -344,30 +335,26 @@ PE_NAME opt_pmu_config if (!ok) { /* Failure to add, assume $1 is an event name. */ zfree(&list); - ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list); + ok = !parse_events_multi_pmu_add(parse_state, $1, $2, &list, &@1); $2 = NULL; } - if (!ok) - CLEANUP_YYABORT; + 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); - parse_events_terms__delete(orig_terms); - free(pattern); - free($1); - $$ = list; -#undef CLEANUP_YYABORT -} -| -PE_KERNEL_PMU_EVENT sep_dc -{ - struct list_head *list; - int err; - - err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list); - free($1); - if (err < 0) - YYABORT; $$ = list; + list = NULL; + CLEANUP; +#undef CLEANUP } | PE_NAME sep_dc @@ -375,61 +362,19 @@ PE_NAME sep_dc struct list_head *list; int err; - err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list); - free($1); - if (err < 0) - YYABORT; - $$ = list; -} -| -PE_KERNEL_PMU_EVENT opt_pmu_config -{ - struct list_head *list; - int err; - - /* frees $2 */ - err = parse_events_multi_pmu_add(_parse_state, $1, $2, &list); - free($1); - if (err < 0) - YYABORT; - $$ = list; -} -| -PE_PMU_EVENT_FAKE sep_dc -{ - struct list_head *list; - int err; - - list = alloc_list(); - if (!list) - YYABORT; - - err = parse_events_add_pmu(_parse_state, list, $1, /*head_config=*/NULL, - /*auto_merge_stats=*/false); - free($1); + err = parse_events_multi_pmu_add(_parse_state, $1, NULL, &list, &@1); if (err < 0) { - free(list); - YYABORT; - } - $$ = list; -} -| -PE_PMU_EVENT_FAKE opt_pmu_config -{ - struct list_head *list; - int err; - - list = alloc_list(); - if (!list) - YYABORT; + struct parse_events_state *parse_state = _parse_state; + struct parse_events_error *error = parse_state->error; + char *help; - err = parse_events_add_pmu(_parse_state, list, $1, $2, /*auto_merge_stats=*/false); - free($1); - parse_events_terms__delete($2); - if (err < 0) { - free(list); - YYABORT; + if (asprintf(&help, "Unable to find event on a PMU of '%s'", $1) < 0) + help = NULL; + parse_events_error__handle(error, @1.first_column, strdup("Bad event name"), help); + free($1); + PE_ABORT(err); } + free($1); $$ = list; } @@ -448,12 +393,13 @@ value_sym '/' event_config '/' bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE); list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; err = parse_events_add_numeric(_parse_state, list, type, config, $3, wildcard); parse_events_terms__delete($3); if (err) { free_list_evsel(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -464,21 +410,28 @@ value_sym sep_slash_slash_dc int type = $1 >> 16; int config = $1 & 255; bool wildcard = (type == PERF_TYPE_HARDWARE || type == PERF_TYPE_HW_CACHE); + int err; list = alloc_list(); - ABORT_ON(!list); - ABORT_ON(parse_events_add_numeric(_parse_state, list, type, config, - /*head_config=*/NULL, wildcard)); + if (!list) + YYNOMEM; + err = parse_events_add_numeric(_parse_state, list, type, config, /*head_config=*/NULL, wildcard); + if (err) + PE_ABORT(err); $$ = list; } | PE_VALUE_SYM_TOOL sep_slash_slash_dc { struct list_head *list; + int err; list = alloc_list(); - ABORT_ON(!list); - ABORT_ON(parse_events_add_tool(_parse_state, list, $1)); + if (!list) + YYNOMEM; + err = parse_events_add_tool(_parse_state, list, $1); + if (err) + YYNOMEM; $$ = list; } @@ -490,14 +443,16 @@ PE_LEGACY_CACHE opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; + err = parse_events_add_cache(list, &parse_state->idx, $1, parse_state, $2); parse_events_terms__delete($2); free($1); if (err) { free_list_evsel(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -509,14 +464,16 @@ PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; + err = parse_events_add_breakpoint(_parse_state, list, $2, $6, $4, $7); parse_events_terms__delete($7); free($6); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -527,13 +484,15 @@ PE_PREFIX_MEM PE_VALUE PE_BP_SLASH PE_VALUE opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; + err = parse_events_add_breakpoint(_parse_state, list, $2, NULL, $4, $5); parse_events_terms__delete($5); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -544,14 +503,16 @@ PE_PREFIX_MEM PE_VALUE PE_BP_COLON PE_MODIFIER_BP opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; + err = parse_events_add_breakpoint(_parse_state, list, $2, $4, 0, $5); parse_events_terms__delete($5); free($4); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -562,13 +523,14 @@ PE_PREFIX_MEM PE_VALUE opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; err = parse_events_add_breakpoint(_parse_state, list, $2, NULL, 0, $3); parse_events_terms__delete($3); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -582,19 +544,20 @@ tracepoint_name opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; if (error) error->idx = @1.first_column; err = parse_events_add_tracepoint(list, &parse_state->idx, $1.sys, $1.event, - error, $2); + error, $2, &@1); parse_events_terms__delete($2); free($1.sys); free($1.event); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -614,13 +577,14 @@ PE_VALUE ':' PE_VALUE opt_event_config int err; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; err = parse_events_add_numeric(_parse_state, list, (u32)$1, $3, $4, /*wildcard=*/false); parse_events_terms__delete($4); if (err) { free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -633,52 +597,20 @@ PE_RAW opt_event_config u64 num; list = alloc_list(); - ABORT_ON(!list); + if (!list) + YYNOMEM; errno = 0; num = strtoull($1 + 1, NULL, 16); - ABORT_ON(errno); + /* Given the lexer will only give [a-fA-F0-9]+ a failure here should be impossible. */ + if (errno) + YYABORT; free($1); err = parse_events_add_numeric(_parse_state, list, PERF_TYPE_RAW, num, $2, /*wildcard=*/false); parse_events_terms__delete($2); if (err) { free(list); - YYABORT; - } - $$ = list; -} - -event_bpf_file: -PE_BPF_OBJECT opt_event_config -{ - struct parse_events_state *parse_state = _parse_state; - struct list_head *list; - int err; - - list = alloc_list(); - ABORT_ON(!list); - err = parse_events_load_bpf(parse_state, list, $1, false, $2); - parse_events_terms__delete($2); - free($1); - if (err) { - free(list); - YYABORT; - } - $$ = list; -} -| -PE_BPF_SOURCE opt_event_config -{ - struct list_head *list; - int err; - - list = alloc_list(); - ABORT_ON(!list); - err = parse_events_load_bpf(_parse_state, list, $1, true, $2); - parse_events_terms__delete($2); - if (err) { - free(list); - YYABORT; + PE_ABORT(err); } $$ = list; } @@ -738,7 +670,8 @@ event_term struct list_head *head = malloc(sizeof(*head)); struct parse_events_term *term = $1; - ABORT_ON(!head); + if (!head) + YYNOMEM; INIT_LIST_HEAD(head); list_add_tail(&term->list, head); $$ = head; @@ -752,11 +685,12 @@ event_term: PE_RAW { struct parse_events_term *term; + int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW, + strdup("raw"), $1, &@1, &@1); - if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_RAW, - strdup("raw"), $1, &@1, &@1)) { + if (err) { free($1); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -764,12 +698,12 @@ PE_RAW name_or_raw '=' name_or_legacy { struct parse_events_term *term; + int err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, $1, $3, &@1, &@3); - if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $3, &@1, &@3)) { + if (err) { free($1); free($3); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -777,11 +711,12 @@ name_or_raw '=' name_or_legacy name_or_raw '=' PE_VALUE { struct parse_events_term *term; + int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, + $1, $3, /*novalue=*/false, &@1, &@3); - if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $3, false, &@1, &@3)) { + if (err) { free($1); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -789,12 +724,13 @@ name_or_raw '=' PE_VALUE 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 (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $3.str, &@1, &@3)) { + if (err) { free($1); free($3.str); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -802,11 +738,12 @@ name_or_raw '=' PE_TERM_HW PE_LEGACY_CACHE { struct parse_events_term *term; + int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE, + $1, /*num=*/1, /*novalue=*/true, &@1, /*loc_val=*/NULL); - if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_LEGACY_CACHE, - $1, 1, true, &@1, NULL)) { + if (err) { free($1); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -814,11 +751,12 @@ PE_LEGACY_CACHE PE_NAME { struct parse_events_term *term; + int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, + $1, /*num=*/1, /*novalue=*/true, &@1, /*loc_val=*/NULL); - if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, 1, true, &@1, NULL)) { + if (err) { free($1); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -826,11 +764,13 @@ PE_NAME PE_TERM_HW { struct parse_events_term *term; + int err = parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE, + $1.str, $1.num & 255, /*novalue=*/false, + &@1, /*loc_val=*/NULL); - if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_HARDWARE, - $1.str, $1.num & 255, false, &@1, NULL)) { + if (err) { free($1.str); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -838,10 +778,12 @@ PE_TERM_HW PE_TERM '=' name_or_legacy { struct parse_events_term *term; + int err = parse_events_term__str(&term, (enum parse_events__term_type)$1, + /*config=*/NULL, $3, &@1, &@3); - if (parse_events_term__str(&term, (int)$1, NULL, $3, &@1, &@3)) { + if (err) { free($3); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -849,10 +791,12 @@ PE_TERM '=' name_or_legacy PE_TERM '=' PE_TERM_HW { struct parse_events_term *term; + int err = parse_events_term__str(&term, (enum parse_events__term_type)$1, + /*config=*/NULL, $3.str, &@1, &@3); - if (parse_events_term__str(&term, (int)$1, NULL, $3.str, &@1, &@3)) { + if (err) { free($3.str); - YYABORT; + PE_ABORT(err); } $$ = term; } @@ -860,53 +804,39 @@ PE_TERM '=' PE_TERM_HW PE_TERM '=' PE_TERM { struct parse_events_term *term; + int err = parse_events_term__term(&term, + (enum parse_events__term_type)$1, + (enum parse_events__term_type)$3, + &@1, &@3); + + if (err) + PE_ABORT(err); - ABORT_ON(parse_events_term__term(&term, (int)$1, (int)$3, &@1, &@3)); $$ = term; } | PE_TERM '=' PE_VALUE { struct parse_events_term *term; + int err = parse_events_term__num(&term, (enum parse_events__term_type)$1, + /*config=*/NULL, $3, /*novalue=*/false, &@1, &@3); + + if (err) + PE_ABORT(err); - ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, $3, false, &@1, &@3)); $$ = term; } | PE_TERM { struct parse_events_term *term; + int err = parse_events_term__num(&term, (enum parse_events__term_type)$1, + /*config=*/NULL, /*num=*/1, /*novalue=*/true, + &@1, /*loc_val=*/NULL); - ABORT_ON(parse_events_term__num(&term, (int)$1, NULL, 1, true, &@1, NULL)); - $$ = term; -} -| -name_or_raw array '=' name_or_legacy -{ - struct parse_events_term *term; + if (err) + PE_ABORT(err); - if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $4, &@1, &@4)) { - free($1); - free($4); - free($2.ranges); - YYABORT; - } - term->array = $2; - $$ = term; -} -| -name_or_raw array '=' PE_VALUE -{ - struct parse_events_term *term; - - if (parse_events_term__num(&term, PARSE_EVENTS__TERM_TYPE_USER, - $1, $4, false, &@1, &@4)) { - free($1); - free($2.ranges); - YYABORT; - } - term->array = $2; $$ = term; } | @@ -914,73 +844,19 @@ PE_DRV_CFG_TERM { struct parse_events_term *term; char *config = strdup($1); + int err; - ABORT_ON(!config); - if (parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG, - config, $1, &@1, NULL)) { + if (!config) + YYNOMEM; + err = parse_events_term__str(&term, PARSE_EVENTS__TERM_TYPE_DRV_CFG, config, $1, &@1, NULL); + if (err) { free($1); free(config); - YYABORT; + PE_ABORT(err); } $$ = term; } -array: -'[' array_terms ']' -{ - $$ = $2; -} -| -PE_ARRAY_ALL -{ - $$.nr_ranges = 0; - $$.ranges = NULL; -} - -array_terms: -array_terms ',' array_term -{ - struct parse_events_array new_array; - - new_array.nr_ranges = $1.nr_ranges + $3.nr_ranges; - new_array.ranges = realloc($1.ranges, - sizeof(new_array.ranges[0]) * - new_array.nr_ranges); - ABORT_ON(!new_array.ranges); - memcpy(&new_array.ranges[$1.nr_ranges], $3.ranges, - $3.nr_ranges * sizeof(new_array.ranges[0])); - free($3.ranges); - $$ = new_array; -} -| -array_term - -array_term: -PE_VALUE -{ - struct parse_events_array array; - - array.nr_ranges = 1; - array.ranges = malloc(sizeof(array.ranges[0])); - ABORT_ON(!array.ranges); - array.ranges[0].start = $1; - array.ranges[0].length = 1; - $$ = array; -} -| -PE_VALUE PE_ARRAY_RANGE PE_VALUE -{ - struct parse_events_array array; - - ABORT_ON($3 < $1); - array.nr_ranges = 1; - array.ranges = malloc(sizeof(array.ranges[0])); - ABORT_ON(!array.ranges); - array.ranges[0].start = $1; - array.ranges[0].length = $3 - $1 + 1; - $$ = array; -} - sep_dc: ':' | sep_slash_slash_dc: '/' '/' | ':' | |