From patchwork Tue Mar 26 15:43:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzvetomir Stoyanov X-Patchwork-Id: 10871459 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6431E15AC for ; Tue, 26 Mar 2019 15:44:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 508AF287AB for ; Tue, 26 Mar 2019 15:44:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 44E1C28CD7; Tue, 26 Mar 2019 15:44:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 54DD7287AB for ; Tue, 26 Mar 2019 15:44:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732022AbfCZPne (ORCPT ); Tue, 26 Mar 2019 11:43:34 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:36857 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731897AbfCZPnd (ORCPT ); Tue, 26 Mar 2019 11:43:33 -0400 Received: by mail-wm1-f65.google.com with SMTP id h18so13487314wml.1; Tue, 26 Mar 2019 08:43:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fANz4yPzPxvm4DgilB+nGjOrA5gmS5bn2wLSTbAX9vc=; b=RwYoTyMycAnfCyBP1Kztr6C0Kj1dzjWCuCuy+KQBgjg4pEGBjphtRR4gEly+qH74TN i5/Sxsb4CD88J9oOeDMbXC5LNmVkLtmjXlrM1is971BpzuSTeuFY5Rb5T12DSqkxqMXY wmMjX9x3GhAPy3REaX0wPATaxEV/kOCo3SjwiaSZ6B1/EA9YN7682MkZWf9NMhvdhOKo BAEsyrf0FJH5X95P+7Gkws218IQnfIynhVivRtiSXNh3imw29sksr1U9bu7WnOkJL0th 5VCSLbYE7CEJGApA+0M0+1cDKkg4Q70hKcsN5NNI035q9KydbHChIDARDlg+nS4ICBCM eJOA== X-Gm-Message-State: APjAAAWphGviH38jCN63zdnu5ZINSr9VoMltXKWPZeQ/kb89DudHW6qz jPGRZg1GuHkgun7MCxQT7L8= X-Google-Smtp-Source: APXvYqw2eeQPAeFI0iUX2aYEjQ8ykBmxP0GbOFD6ff7snl59Tzel57qhU0D9ufAULF5KT0Emj/kHuQ== X-Received: by 2002:a1c:f606:: with SMTP id w6mr8872085wmc.130.1553615011552; Tue, 26 Mar 2019 08:43:31 -0700 (PDT) Received: from oberon.eng.vmware.com ([146.247.46.5]) by smtp.gmail.com with ESMTPSA id n11sm31927685wrt.63.2019.03.26.08.43.30 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 26 Mar 2019 08:43:31 -0700 (PDT) From: Tzvetomir Stoyanov To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/8] tools/perf,tools/lib/traceevent: Make traceevent APIs more consistent Date: Tue, 26 Mar 2019 17:43:21 +0200 Message-Id: <20190326154328.28718-2-tstoyanov@vmware.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190326154328.28718-1-tstoyanov@vmware.com> References: <20190326154328.28718-1-tstoyanov@vmware.com> MIME-Version: 1.0 Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Rename some traceevent APIs for consistency: tep_pid_is_registered() to tep_is_pid_registered() tep_file_bigendian() to tep_is_file_bigendian() to make the names and return values consistent with other tep_is_... APIs tep_data_lat_fmt() to tep_data_latency_format() to make the name more descriptive tep_host_bigendian() to tep_is_bigendian() tep_set_host_bigendian() to tep_set_local_bigendian() tep_is_host_bigendian() to tep_is_local_bigendian() "host" can be confused with VMs, and "local" is about the local machine. All tep_is_..._bigendian(struct tep_handle *tep) APIs return the saved data in the tep handle, while tep_is_bigendian() returns the running machine's endianness. All tep_is_... functions are modified to return bool value, instead of int. Signed-off-by: Tzvetomir Stoyanov --- tools/lib/traceevent/event-parse-api.c | 44 +++++++++++++------------- tools/lib/traceevent/event-parse.c | 26 +++++++-------- tools/lib/traceevent/event-parse.h | 16 +++++----- tools/lib/traceevent/plugin_kvm.c | 4 +-- tools/perf/util/trace-event-read.c | 2 +- tools/perf/util/trace-event.c | 4 +-- 6 files changed, 48 insertions(+), 48 deletions(-) diff --git a/tools/lib/traceevent/event-parse-api.c b/tools/lib/traceevent/event-parse-api.c index 2ac8b44854ce..46670bb87051 100644 --- a/tools/lib/traceevent/event-parse-api.c +++ b/tools/lib/traceevent/event-parse-api.c @@ -88,7 +88,7 @@ void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag) bool tep_test_flag(struct tep_handle *tep, enum tep_flag flag) { if (tep) - return (tep->flags & flag); + return !!(tep->flags & flag); return false; } @@ -155,10 +155,10 @@ int tep_get_header_page_size(struct tep_handle *pevent) } /** - * tep_get_header_timestamp_size - get size of the time stamp in the header page + * tep_get_header_timestamp_size - get size of the timestamp in the header page * @tep: a handle to the tep_handle * - * This returns size of the time stamp in the header page + * This returns size of the timestamp in the header page * If @tep is NULL, 0 is returned. */ int tep_get_header_timestamp_size(struct tep_handle *tep) @@ -249,17 +249,17 @@ void tep_set_page_size(struct tep_handle *pevent, int _page_size) } /** - * tep_file_bigendian - get if the file is in big endian order + * tep_is_file_bigendian - return the endian of the file * @pevent: a handle to the tep_handle * - * This returns if the file is in big endian order - * If @pevent is NULL, 0 is returned. + * This returns true if the file is in big endian order + * If @pevent is NULL, false is returned. */ -int tep_file_bigendian(struct tep_handle *pevent) +bool tep_is_file_bigendian(struct tep_handle *pevent) { if (pevent) - return pevent->file_bigendian; - return 0; + return (pevent->file_bigendian == TEP_BIG_ENDIAN); + return false; } /** @@ -276,27 +276,27 @@ void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian) } /** - * tep_is_host_bigendian - get if the order of the current host is big endian + * tep_is_local_bigendian - return the endian of the saved local machine * @pevent: a handle to the tep_handle * - * This gets if the order of the current host is big endian - * If @pevent is NULL, 0 is returned. + * This returns true if the saved local machine in @pevent is big endian. + * If @pevent is NULL, false is returned. */ -int tep_is_host_bigendian(struct tep_handle *pevent) +bool tep_is_local_bigendian(struct tep_handle *pevent) { if (pevent) - return pevent->host_bigendian; + return (pevent->host_bigendian == TEP_BIG_ENDIAN); return 0; } /** - * tep_set_host_bigendian - set the order of the local host + * tep_set_local_bigendian - set the stored local machine endian order * @pevent: a handle to the tep_handle * @endian: non zero, if the local host has big endian order * - * This sets the order of the local host + * This sets the endian order for the local machine. */ -void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian) +void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian) { if (pevent) pevent->host_bigendian = endian; @@ -306,14 +306,14 @@ void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian) * tep_is_latency_format - get if the latency output format is configured * @pevent: a handle to the tep_handle * - * This gets if the latency output format is configured - * If @pevent is NULL, 0 is returned. + * This returns true if the latency output format is configured + * If @pevent is NULL, false is returned. */ -int tep_is_latency_format(struct tep_handle *pevent) +bool tep_is_latency_format(struct tep_handle *pevent) { if (pevent) - return pevent->latency_format; - return 0; + return !!(pevent->latency_format); + return false; } /** diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index e53c566be55d..f309b6d7e08a 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -199,23 +199,23 @@ static const char *find_cmdline(struct tep_handle *pevent, int pid) } /** - * tep_pid_is_registered - return if a pid has a cmdline registered + * tep_is_pid_registered - return if a pid has a cmdline registered * @pevent: handle for the pevent * @pid: The pid to check if it has a cmdline registered with. * - * Returns 1 if the pid has a cmdline mapped to it - * 0 otherwise. + * Returns true if the pid has a cmdline mapped to it + * false otherwise. */ -int tep_pid_is_registered(struct tep_handle *pevent, int pid) +bool tep_is_pid_registered(struct tep_handle *pevent, int pid) { const struct tep_cmdline *comm; struct tep_cmdline key; if (!pid) - return 1; + return true; if (!pevent->cmdlines && cmdline_init(pevent)) - return 0; + return false; key.pid = pid; @@ -223,8 +223,8 @@ int tep_pid_is_registered(struct tep_handle *pevent, int pid) sizeof(*pevent->cmdlines), cmdline_cmp); if (comm) - return 1; - return 0; + return true; + return false; } /* @@ -5171,7 +5171,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e } /** - * tep_data_lat_fmt - parse the data for the latency format + * tep_data_latency_format - parse the data for the latency format * @pevent: a handle to the pevent * @s: the trace_seq to write to * @record: the record to read from @@ -5180,8 +5180,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct tep_e * need rescheduling, in hard/soft interrupt, preempt count * and lock depth) and places it into the trace_seq. */ -void tep_data_lat_fmt(struct tep_handle *pevent, - struct trace_seq *s, struct tep_record *record) +void tep_data_latency_format(struct tep_handle *pevent, + struct trace_seq *s, struct tep_record *record) { static int check_lock_depth = 1; static int check_migrate_disable = 1; @@ -5530,7 +5530,7 @@ void tep_print_event_time(struct tep_handle *pevent, struct trace_seq *s, } if (pevent->latency_format) { - tep_data_lat_fmt(pevent, s, record); + tep_data_latency_format(pevent, s, record); } if (use_usec_format) { @@ -6760,7 +6760,7 @@ struct tep_handle *tep_alloc(void) if (pevent) { pevent->ref_count = 1; - pevent->host_bigendian = tep_host_bigendian(); + pevent->host_bigendian = tep_is_bigendian(); } return pevent; diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 93b7d96c5afe..f3b822736d87 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -412,7 +412,7 @@ void tep_set_flag(struct tep_handle *tep, int flag); void tep_clear_flag(struct tep_handle *tep, enum tep_flag flag); bool tep_test_flag(struct tep_handle *tep, enum tep_flag flags); -static inline int tep_host_bigendian(void) +static inline int tep_is_bigendian(void) { unsigned char str[] = { 0x1, 0x2, 0x3, 0x4 }; unsigned int val; @@ -440,7 +440,7 @@ int tep_register_function(struct tep_handle *pevent, char *name, unsigned long long addr, char *mod); int tep_register_print_string(struct tep_handle *pevent, const char *fmt, unsigned long long addr); -int tep_pid_is_registered(struct tep_handle *pevent, int pid); +bool tep_is_pid_registered(struct tep_handle *pevent, int pid); void tep_print_event_task(struct tep_handle *pevent, struct trace_seq *s, struct tep_event *event, @@ -526,8 +526,8 @@ tep_find_event_by_name(struct tep_handle *pevent, const char *sys, const char *n struct tep_event * tep_find_event_by_record(struct tep_handle *pevent, struct tep_record *record); -void tep_data_lat_fmt(struct tep_handle *pevent, - struct trace_seq *s, struct tep_record *record); +void tep_data_latency_format(struct tep_handle *pevent, + struct trace_seq *s, struct tep_record *record); int tep_data_type(struct tep_handle *pevent, struct tep_record *rec); int tep_data_pid(struct tep_handle *pevent, struct tep_record *rec); int tep_data_preempt_count(struct tep_handle *pevent, struct tep_record *rec); @@ -561,11 +561,11 @@ int tep_get_long_size(struct tep_handle *pevent); void tep_set_long_size(struct tep_handle *pevent, int long_size); int tep_get_page_size(struct tep_handle *pevent); void tep_set_page_size(struct tep_handle *pevent, int _page_size); -int tep_file_bigendian(struct tep_handle *pevent); +bool tep_is_file_bigendian(struct tep_handle *pevent); void tep_set_file_bigendian(struct tep_handle *pevent, enum tep_endian endian); -int tep_is_host_bigendian(struct tep_handle *pevent); -void tep_set_host_bigendian(struct tep_handle *pevent, enum tep_endian endian); -int tep_is_latency_format(struct tep_handle *pevent); +bool tep_is_local_bigendian(struct tep_handle *pevent); +void tep_set_local_bigendian(struct tep_handle *pevent, enum tep_endian endian); +bool tep_is_latency_format(struct tep_handle *pevent); void tep_set_latency_format(struct tep_handle *pevent, int lat); int tep_get_header_page_size(struct tep_handle *pevent); int tep_get_header_timestamp_size(struct tep_handle *tep); diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c index 64b9c25a1fd3..688e5d97d7a7 100644 --- a/tools/lib/traceevent/plugin_kvm.c +++ b/tools/lib/traceevent/plugin_kvm.c @@ -389,8 +389,8 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct tep_record *record, * We can only use the structure if file is of the same * endianness. */ - if (tep_file_bigendian(event->pevent) == - tep_is_host_bigendian(event->pevent)) { + if (tep_is_file_bigendian(event->pevent) == + tep_is_local_bigendian(event->pevent)) { trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s", role.level, diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c index efe2f58cff4e..48d53d8e3e16 100644 --- a/tools/perf/util/trace-event-read.c +++ b/tools/perf/util/trace-event-read.c @@ -442,7 +442,7 @@ ssize_t trace_report(int fd, struct trace_event *tevent, bool __repipe) tep_set_flag(pevent, TEP_NSEC_OUTPUT); tep_set_file_bigendian(pevent, file_bigendian); - tep_set_host_bigendian(pevent, host_bigendian); + tep_set_local_bigendian(pevent, host_bigendian); if (do_read(buf, 1) < 0) goto out; diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c index cbe0dd758e3a..01b9d89bf5bf 100644 --- a/tools/perf/util/trace-event.c +++ b/tools/perf/util/trace-event.c @@ -40,7 +40,7 @@ int trace_event__init(struct trace_event *t) static int trace_event__init2(void) { - int be = tep_host_bigendian(); + int be = tep_is_bigendian(); struct tep_handle *pevent; if (trace_event__init(&tevent)) @@ -49,7 +49,7 @@ static int trace_event__init2(void) pevent = tevent.pevent; tep_set_flag(pevent, TEP_NSEC_OUTPUT); tep_set_file_bigendian(pevent, be); - tep_set_host_bigendian(pevent, be); + tep_set_local_bigendian(pevent, be); tevent_initialized = true; return 0; }