From: Ian Rogers <irogers@google.com> To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, Kan Liang <kan.liang@linux.intel.com>, James Clark <james.clark@arm.com>, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Atish Patra <atishp@rivosinc.com>, linux-riscv@lists.infradead.org, Beeman Strong <beeman@rivosinc.com> Subject: [PATCH v1 1/9] perf parse-events: Factor out '<event_or_pmu>/.../' parsing Date: Sun, 14 Apr 2024 23:36:18 -0700 [thread overview] Message-ID: <20240415063626.453987-2-irogers@google.com> (raw) In-Reply-To: <20240415063626.453987-1-irogers@google.com> Factor out the case of an event or PMU name followed by a slash based term list. This is with a view to sharing the code with new legacy hardware parsing. Use early return to reduce indentation in the code. Make parse_events_add_pmu static now it doesn't need sharing with parse-events.y. Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/parse-events.c | 69 +++++++++++++++++++++++++++++++- tools/perf/util/parse-events.h | 10 +++-- tools/perf/util/parse-events.y | 73 +++------------------------------- 3 files changed, 80 insertions(+), 72 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 6f8b0fa17689..b16c75bf5580 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1385,7 +1385,7 @@ static bool config_term_percore(struct list_head *config_terms) return false; } -int parse_events_add_pmu(struct parse_events_state *parse_state, +static int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, const char *name, const struct parse_events_terms *const_parsed_terms, bool auto_merge_stats, void *loc_) @@ -1618,6 +1618,73 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, return ok ? 0 : -1; } +int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state, + const char *event_or_pmu, + const struct parse_events_terms *const_parsed_terms, + struct list_head **listp, + void *loc_) +{ + char *pattern = NULL; + YYLTYPE *loc = loc_; + struct perf_pmu *pmu = NULL; + int ok = 0; + char *help; + + *listp = malloc(sizeof(**listp)); + if (!*listp) + return -ENOMEM; + + INIT_LIST_HEAD(*listp); + + /* Attempt to add to list assuming event_or_pmu is a PMU name. */ + if (!parse_events_add_pmu(parse_state, *listp, event_or_pmu, const_parsed_terms, + /*auto_merge_stats=*/false, loc)) + return 0; + + /* Failed to add, try wildcard expansion of event_or_pmu as a PMU name. */ + if (asprintf(&pattern, "%s*", event_or_pmu) < 0) { + zfree(listp); + return -ENOMEM; + } + + 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(event_or_pmu, "uncore_", 7)) + name += 7; + if (!perf_pmu__match(pattern, name, event_or_pmu) || + !perf_pmu__match(pattern, pmu->alias_name, event_or_pmu)) { + bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu); + + if (!parse_events_add_pmu(parse_state, *listp, pmu->name, const_parsed_terms, + auto_merge_stats, loc)) { + ok++; + parse_state->wild_card_pmus = true; + } + } + } + zfree(&pattern); + if (ok) + return 0; + + /* Failure to add, assume event_or_pmu is an event name. */ + zfree(listp); + if (!parse_events_multi_pmu_add(parse_state, event_or_pmu, const_parsed_terms, listp, loc)) + return 0; + + if (asprintf(&help, "Unable to find PMU or event on a PMU of '%s'", event_or_pmu) < 0) + help = NULL; + parse_events_error__handle(parse_state->error, loc->first_column, + strdup("Bad event or PMU"), + help); + zfree(listp); + return -EINVAL; +} + int parse_events__modifier_group(struct list_head *list, char *event_mod) { diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 809359e8544e..a331b9f0da2b 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -209,10 +209,6 @@ int parse_events_add_breakpoint(struct parse_events_state *parse_state, struct list_head *list, u64 addr, char *type, u64 len, struct parse_events_terms *head_config); -int parse_events_add_pmu(struct parse_events_state *parse_state, - struct list_head *list, const char *name, - const struct parse_events_terms *const_parsed_terms, - bool auto_merge_stats, void *loc); struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, const char *name, const char *metric_id, @@ -223,6 +219,12 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, const struct parse_events_terms *const_parsed_terms, struct list_head **listp, void *loc); +int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state, + const char *event_or_pmu, + const struct parse_events_terms *const_parsed_terms, + struct list_head **listp, + void *loc_); + void parse_events__set_leader(char *name, struct list_head *list); void parse_events_update_lists(struct list_head *list_event, struct list_head *list_all); diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index d70f5d84af92..14175eee9489 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -273,78 +273,17 @@ 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; - -#define CLEANUP \ - do { \ - parse_events_terms__delete($2); \ - free(list); \ - free($1); \ - free(pattern); \ - } while(0) + int err = parse_events_multi_pmu_add_or_add_pmu(_parse_state, $1, $2, &list, &@1); - list = alloc_list(); - if (!list) { - CLEANUP; + parse_events_terms__delete($2); + free($1); + if (err == -ENOMEM) 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; - } - } + if (err) + YYABORT; $$ = list; - list = NULL; - CLEANUP; -#undef CLEANUP } | PE_NAME sep_dc -- 2.44.0.683.g7961c838ac-goog
WARNING: multiple messages have this Message-ID (diff)
From: Ian Rogers <irogers@google.com> To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@redhat.com>, Arnaldo Carvalho de Melo <acme@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, Kan Liang <kan.liang@linux.intel.com>, James Clark <james.clark@arm.com>, linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Atish Patra <atishp@rivosinc.com>, linux-riscv@lists.infradead.org, Beeman Strong <beeman@rivosinc.com> Subject: [PATCH v1 1/9] perf parse-events: Factor out '<event_or_pmu>/.../' parsing Date: Sun, 14 Apr 2024 23:36:18 -0700 [thread overview] Message-ID: <20240415063626.453987-2-irogers@google.com> (raw) In-Reply-To: <20240415063626.453987-1-irogers@google.com> Factor out the case of an event or PMU name followed by a slash based term list. This is with a view to sharing the code with new legacy hardware parsing. Use early return to reduce indentation in the code. Make parse_events_add_pmu static now it doesn't need sharing with parse-events.y. Signed-off-by: Ian Rogers <irogers@google.com> --- tools/perf/util/parse-events.c | 69 +++++++++++++++++++++++++++++++- tools/perf/util/parse-events.h | 10 +++-- tools/perf/util/parse-events.y | 73 +++------------------------------- 3 files changed, 80 insertions(+), 72 deletions(-) diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c index 6f8b0fa17689..b16c75bf5580 100644 --- a/tools/perf/util/parse-events.c +++ b/tools/perf/util/parse-events.c @@ -1385,7 +1385,7 @@ static bool config_term_percore(struct list_head *config_terms) return false; } -int parse_events_add_pmu(struct parse_events_state *parse_state, +static int parse_events_add_pmu(struct parse_events_state *parse_state, struct list_head *list, const char *name, const struct parse_events_terms *const_parsed_terms, bool auto_merge_stats, void *loc_) @@ -1618,6 +1618,73 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, return ok ? 0 : -1; } +int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state, + const char *event_or_pmu, + const struct parse_events_terms *const_parsed_terms, + struct list_head **listp, + void *loc_) +{ + char *pattern = NULL; + YYLTYPE *loc = loc_; + struct perf_pmu *pmu = NULL; + int ok = 0; + char *help; + + *listp = malloc(sizeof(**listp)); + if (!*listp) + return -ENOMEM; + + INIT_LIST_HEAD(*listp); + + /* Attempt to add to list assuming event_or_pmu is a PMU name. */ + if (!parse_events_add_pmu(parse_state, *listp, event_or_pmu, const_parsed_terms, + /*auto_merge_stats=*/false, loc)) + return 0; + + /* Failed to add, try wildcard expansion of event_or_pmu as a PMU name. */ + if (asprintf(&pattern, "%s*", event_or_pmu) < 0) { + zfree(listp); + return -ENOMEM; + } + + 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(event_or_pmu, "uncore_", 7)) + name += 7; + if (!perf_pmu__match(pattern, name, event_or_pmu) || + !perf_pmu__match(pattern, pmu->alias_name, event_or_pmu)) { + bool auto_merge_stats = perf_pmu__auto_merge_stats(pmu); + + if (!parse_events_add_pmu(parse_state, *listp, pmu->name, const_parsed_terms, + auto_merge_stats, loc)) { + ok++; + parse_state->wild_card_pmus = true; + } + } + } + zfree(&pattern); + if (ok) + return 0; + + /* Failure to add, assume event_or_pmu is an event name. */ + zfree(listp); + if (!parse_events_multi_pmu_add(parse_state, event_or_pmu, const_parsed_terms, listp, loc)) + return 0; + + if (asprintf(&help, "Unable to find PMU or event on a PMU of '%s'", event_or_pmu) < 0) + help = NULL; + parse_events_error__handle(parse_state->error, loc->first_column, + strdup("Bad event or PMU"), + help); + zfree(listp); + return -EINVAL; +} + int parse_events__modifier_group(struct list_head *list, char *event_mod) { diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h index 809359e8544e..a331b9f0da2b 100644 --- a/tools/perf/util/parse-events.h +++ b/tools/perf/util/parse-events.h @@ -209,10 +209,6 @@ int parse_events_add_breakpoint(struct parse_events_state *parse_state, struct list_head *list, u64 addr, char *type, u64 len, struct parse_events_terms *head_config); -int parse_events_add_pmu(struct parse_events_state *parse_state, - struct list_head *list, const char *name, - const struct parse_events_terms *const_parsed_terms, - bool auto_merge_stats, void *loc); struct evsel *parse_events__add_event(int idx, struct perf_event_attr *attr, const char *name, const char *metric_id, @@ -223,6 +219,12 @@ int parse_events_multi_pmu_add(struct parse_events_state *parse_state, const struct parse_events_terms *const_parsed_terms, struct list_head **listp, void *loc); +int parse_events_multi_pmu_add_or_add_pmu(struct parse_events_state *parse_state, + const char *event_or_pmu, + const struct parse_events_terms *const_parsed_terms, + struct list_head **listp, + void *loc_); + void parse_events__set_leader(char *name, struct list_head *list); void parse_events_update_lists(struct list_head *list_event, struct list_head *list_all); diff --git a/tools/perf/util/parse-events.y b/tools/perf/util/parse-events.y index d70f5d84af92..14175eee9489 100644 --- a/tools/perf/util/parse-events.y +++ b/tools/perf/util/parse-events.y @@ -273,78 +273,17 @@ 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; - -#define CLEANUP \ - do { \ - parse_events_terms__delete($2); \ - free(list); \ - free($1); \ - free(pattern); \ - } while(0) + int err = parse_events_multi_pmu_add_or_add_pmu(_parse_state, $1, $2, &list, &@1); - list = alloc_list(); - if (!list) { - CLEANUP; + parse_events_terms__delete($2); + free($1); + if (err == -ENOMEM) 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; - } - } + if (err) + YYABORT; $$ = list; - list = NULL; - CLEANUP; -#undef CLEANUP } | PE_NAME sep_dc -- 2.44.0.683.g7961c838ac-goog _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2024-04-15 6:36 UTC|newest] Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-15 6:36 [PATCH v1 0/9] Consistently prefer sysfs/json events Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` Ian Rogers [this message] 2024-04-15 6:36 ` [PATCH v1 1/9] perf parse-events: Factor out '<event_or_pmu>/.../' parsing Ian Rogers 2024-04-15 6:36 ` [PATCH v1 2/9] perf parse-events: Directly pass PMU to parse_events_add_pmu Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 3/9] perf parse-events: Avoid copying an empty list Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 4/9] perf pmu: Refactor perf_pmu__match Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 5/9] perf tests parse-events: Use branches rather than cache-references Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 6/9] perf parse-events: Legacy cache names on all PMUs and lower priority Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 7/9] perf parse-events: Handle PE_TERM_HW in name_or_raw Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 8/9] perf parse-events: Constify parse_events_add_numeric Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 6:36 ` [PATCH v1 9/9] perf parse-events: Prefer sysfs/json hardware events over legacy Ian Rogers 2024-04-15 6:36 ` Ian Rogers 2024-04-15 16:59 ` [PATCH v1 0/9] Consistently prefer sysfs/json events Ian Rogers 2024-04-15 16:59 ` Ian Rogers
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