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AJvYcCWT6lxNmdS1OHgUdzBc44c3ExaKVzxAR0pT3ELX87kTT5OER6tqjYs/PkOWLJjSmCb0Ze0qHgTXEI4RKeGMJIPt@vger.kernel.org X-Gm-Message-State: AOJu0YzYgXol1PRCuY/IoRJt5rdvaZCAKpvIKt+LDNrOt88MoAxCB1LG ukatBiUJdSUPGOiuLCPGEkwacZ/klOU1/1QRJqi96gpF55ts7hzC3PVZo2jKuwJ0r8NBtRLoP/f o6xfulN7XpQ== X-Google-Smtp-Source: AGHT+IGxhjvl84CTxgxdyhbo7AiTP5Ij1s6m1VkfrUtHM05lXZm2mLtVuYJ1Uk6vIYaIOoYroNcmyvoytsRe X-Received: from pllt10.prod.google.com ([2002:a17:902:dcca:b0:234:952b:35a2]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:198d:b0:235:eb8d:7fff with SMTP id d9443c01a7336-23fb30be09fmr42077855ad.28.1753469543350; Fri, 25 Jul 2025 11:52:23 -0700 (PDT) Date: Fri, 25 Jul 2025 11:51:52 -0700 In-Reply-To: <20250725185202.68671-1-irogers@google.com> Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20250725185202.68671-1-irogers@google.com> X-Mailer: git-send-email 2.50.1.552.g942d659e1b-goog Message-ID: <20250725185202.68671-7-irogers@google.com> Subject: [PATCH v9 06/16] perf list: Remove tracepoint printing code From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Kan Liang , James Clark , Xu Yang , "Masami Hiramatsu (Google)" , Collin Funk , Howard Chu , Weilin Wang , Andi Kleen , "Dr. David Alan Gilbert" , Thomas Richter , Tiezhu Yang , Gautam Menghani , Thomas Falcon , Chun-Tse Shao , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org Cc: Arnaldo Carvalho de Melo Content-Type: text/plain; charset="UTF-8" Now that the tp_pmu can iterate and describe events remove the custom tracepoint printing logic, this avoids perf list showing the tracepoint events twice. Signed-off-by: Ian Rogers Tested-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-list.c | 29 ++++++++--- tools/perf/util/print-events.c | 93 ---------------------------------- tools/perf/util/print-events.h | 2 - 3 files changed, 23 insertions(+), 101 deletions(-) diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c index 674bb0afbf93..3a4061d02f6c 100644 --- a/tools/perf/builtin-list.c +++ b/tools/perf/builtin-list.c @@ -614,9 +614,18 @@ int cmd_list(int argc, const char **argv) for (i = 0; i < argc; ++i) { char *sep, *s; - if (strcmp(argv[i], "tracepoint") == 0) - print_tracepoint_events(&print_cb, ps); - else if (strcmp(argv[i], "hw") == 0 || + if (strcmp(argv[i], "tracepoint") == 0) { + char *old_pmu_glob = default_ps.pmu_glob; + + default_ps.pmu_glob = strdup("tracepoint"); + if (!default_ps.pmu_glob) { + ret = -1; + goto out; + } + perf_pmus__print_pmu_events(&print_cb, ps); + zfree(&default_ps.pmu_glob); + default_ps.pmu_glob = old_pmu_glob; + } else if (strcmp(argv[i], "hw") == 0 || strcmp(argv[i], "hardware") == 0) print_symbol_events(&print_cb, ps, PERF_TYPE_HARDWARE, event_symbols_hw, PERF_COUNT_HW_MAX); @@ -658,6 +667,7 @@ int cmd_list(int argc, const char **argv) #endif else if ((sep = strchr(argv[i], ':')) != NULL) { char *old_pmu_glob = default_ps.pmu_glob; + char *old_event_glob = default_ps.event_glob; default_ps.event_glob = strdup(argv[i]); if (!default_ps.event_glob) { @@ -665,13 +675,21 @@ int cmd_list(int argc, const char **argv) goto out; } - print_tracepoint_events(&print_cb, ps); + default_ps.pmu_glob = strdup("tracepoint"); + if (!default_ps.pmu_glob) { + zfree(&default_ps.event_glob); + ret = -1; + goto out; + } + perf_pmus__print_pmu_events(&print_cb, ps); + zfree(&default_ps.pmu_glob); + default_ps.pmu_glob = old_pmu_glob; print_sdt_events(&print_cb, ps); default_ps.metrics = true; default_ps.metricgroups = true; metricgroup__print(&print_cb, ps); zfree(&default_ps.event_glob); - default_ps.pmu_glob = old_pmu_glob; + default_ps.event_glob = old_event_glob; } else { if (asprintf(&s, "*%s*", argv[i]) < 0) { printf("Critical: Not enough memory! Trying to continue...\n"); @@ -682,7 +700,6 @@ int cmd_list(int argc, const char **argv) event_symbols_hw, PERF_COUNT_HW_MAX); print_hwcache_events(&print_cb, ps); perf_pmus__print_pmu_events(&print_cb, ps); - print_tracepoint_events(&print_cb, ps); print_sdt_events(&print_cb, ps); default_ps.metrics = true; default_ps.metricgroups = true; diff --git a/tools/perf/util/print-events.c b/tools/perf/util/print-events.c index c1a8708b55ab..3a5e5e7bae13 100644 --- a/tools/perf/util/print-events.c +++ b/tools/perf/util/print-events.c @@ -44,97 +44,6 @@ static const char * const event_type_descriptors[] = { "Hardware breakpoint", }; -/* - * Print the events from /tracing/events - */ -void print_tracepoint_events(const struct print_callbacks *print_cb __maybe_unused, void *print_state __maybe_unused) -{ - char *events_path = get_tracing_file("events"); - int events_fd = open(events_path, O_PATH); - struct dirent **sys_namelist = NULL; - int sys_items; - - if (events_fd < 0) { - pr_err("Error: failed to open tracing events directory\n"); - pr_err("%s: %s\n", events_path, strerror(errno)); - return; - } - put_tracing_file(events_path); - - sys_items = tracing_events__scandir_alphasort(&sys_namelist); - - for (int i = 0; i < sys_items; i++) { - struct dirent *sys_dirent = sys_namelist[i]; - struct dirent **evt_namelist = NULL; - int dir_fd; - int evt_items; - - if (sys_dirent->d_type != DT_DIR || - !strcmp(sys_dirent->d_name, ".") || - !strcmp(sys_dirent->d_name, "..")) - goto next_sys; - - dir_fd = openat(events_fd, sys_dirent->d_name, O_PATH); - if (dir_fd < 0) - goto next_sys; - - evt_items = scandirat(events_fd, sys_dirent->d_name, &evt_namelist, NULL, alphasort); - for (int j = 0; j < evt_items; j++) { - /* - * Buffer sized at twice the max filename length + 1 - * separator + 1 \0 terminator. - */ - char buf[NAME_MAX * 2 + 2]; - /* 16 possible hex digits and 22 other characters and \0. */ - char encoding[16 + 22]; - struct dirent *evt_dirent = evt_namelist[j]; - struct io id; - __u64 config; - - if (evt_dirent->d_type != DT_DIR || - !strcmp(evt_dirent->d_name, ".") || - !strcmp(evt_dirent->d_name, "..")) - goto next_evt; - - snprintf(buf, sizeof(buf), "%s/id", evt_dirent->d_name); - io__init(&id, openat(dir_fd, buf, O_RDONLY), buf, sizeof(buf)); - - if (id.fd < 0) - goto next_evt; - - if (io__get_dec(&id, &config) < 0) { - close(id.fd); - goto next_evt; - } - close(id.fd); - - snprintf(buf, sizeof(buf), "%s:%s", - sys_dirent->d_name, evt_dirent->d_name); - snprintf(encoding, sizeof(encoding), "tracepoint/config=0x%llx/", config); - print_cb->print_event(print_state, - /*topic=*/NULL, - /*pmu_name=*/NULL, /* really "tracepoint" */ - /*event_name=*/buf, - /*event_alias=*/NULL, - /*scale_unit=*/NULL, - /*deprecated=*/false, - "Tracepoint event", - /*desc=*/NULL, - /*long_desc=*/NULL, - encoding); -next_evt: - free(evt_namelist[j]); - } - close(dir_fd); - free(evt_namelist); -next_sys: - free(sys_namelist[i]); - } - - free(sys_namelist); - close(events_fd); -} - void print_sdt_events(const struct print_callbacks *print_cb, void *print_state) { struct strlist *bidlist, *sdtlist; @@ -552,8 +461,6 @@ void print_events(const struct print_callbacks *print_cb, void *print_state) /*long_desc=*/NULL, /*encoding_desc=*/NULL); - print_tracepoint_events(print_cb, print_state); - print_sdt_events(print_cb, print_state); metricgroup__print(print_cb, print_state); diff --git a/tools/perf/util/print-events.h b/tools/perf/util/print-events.h index 48682e2d166d..4d95b8257e23 100644 --- a/tools/perf/util/print-events.h +++ b/tools/perf/util/print-events.h @@ -37,8 +37,6 @@ void print_sdt_events(const struct print_callbacks *print_cb, void *print_state) void print_symbol_events(const struct print_callbacks *print_cb, void *print_state, unsigned int type, const struct event_symbol *syms, unsigned int max); - -void print_tracepoint_events(const struct print_callbacks *print_cb, void *print_state); void metricgroup__print(const struct print_callbacks *print_cb, void *print_state); bool is_event_supported(u8 type, u64 config); -- 2.50.1.552.g942d659e1b-goog