From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B758FC63793 for ; Thu, 22 Jul 2021 13:36:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92BA76135F for ; Thu, 22 Jul 2021 13:36:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232032AbhGVM4L (ORCPT ); Thu, 22 Jul 2021 08:56:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:46562 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232157AbhGVMzo (ORCPT ); Thu, 22 Jul 2021 08:55:44 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DC7956135A; Thu, 22 Jul 2021 13:36:19 +0000 (UTC) Received: from rostedt by gandalf.local.home with local (Exim 4.94.2) (envelope-from ) id 1m6Ys6-001at5-PB; Thu, 22 Jul 2021 09:36:18 -0400 From: Steven Rostedt To: linux-trace-devel@vger.kernel.org Cc: Tom Zanussi , Masami Hiramatsu , Namhyung Kim , Daniel Bristot de Oliveira , "Steven Rostedt (VMware)" Subject: [PATCH v2 3/4] libtracefs: Add TRACEFS_TIMESTAMP and TRACEFS_TIMESTAMP_USECS to synth Date: Thu, 22 Jul 2021 09:36:09 -0400 Message-Id: <20210722133610.379933-4-rostedt@goodmis.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210722133610.379933-1-rostedt@goodmis.org> References: <20210722133610.379933-1-rostedt@goodmis.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org From: "Steven Rostedt (VMware)" Add the fields of TRACEFS_TIMESTAMP and TRACEFS_TIMESTAMP_USECS that can be used to calculate the timestamps between the events for the synthetic event creation. Signed-off-by: Steven Rostedt (VMware) --- include/tracefs.h | 3 +++ src/tracefs-hist.c | 50 ++++++++++++++++++++++++++++++++++------------ 2 files changed, 40 insertions(+), 13 deletions(-) diff --git a/include/tracefs.h b/include/tracefs.h index 77a1a37f5b06..9cfd2577da2e 100644 --- a/include/tracefs.h +++ b/include/tracefs.h @@ -324,6 +324,9 @@ enum tracefs_synth_compare { TRACEFS_COMPARE_AND, }; +#define TRACEFS_TIMESTAMP "common_timestamp" +#define TRACEFS_TIMESTAMP_USECS "common_timestamp.usecs" + struct tracefs_synth *tracefs_synth_init(struct tep_handle *tep, const char *name, const char *start_system, diff --git a/src/tracefs-hist.c b/src/tracefs-hist.c index 5ba865d95548..8b9078791ab2 100644 --- a/src/tracefs-hist.c +++ b/src/tracefs-hist.c @@ -563,6 +563,18 @@ struct tracefs_synth { int arg_cnt; }; +static const struct tep_format_field common_timestamp = { + .type = "u64", + .name = "common_timestamp", + .size = 8, +}; + +static const struct tep_format_field common_timestamp_usecs = { + .type = "u64", + .name = "common_timestamp.usecs", + .size = 8, +}; + void tracefs_synth_free(struct tracefs_synth *synth) { if (!synth) @@ -583,21 +595,33 @@ void tracefs_synth_free(struct tracefs_synth *synth) free(synth); } +static const struct tep_format_field *get_event_field(struct tep_event *event, + const char *field_name) +{ + if (!strcmp(field_name, TRACEFS_TIMESTAMP)) + return &common_timestamp; + + if (!strcmp(field_name, TRACEFS_TIMESTAMP_USECS)) + return &common_timestamp_usecs; + + return tep_find_any_field(event, field_name); +} + static bool verify_event_fields(struct tep_event *start_event, struct tep_event *end_event, const char *start_field_name, const char *end_field_name, - struct tep_format_field **ptr_start_field) + const struct tep_format_field **ptr_start_field) { - struct tep_format_field *start_field; - struct tep_format_field *end_field; + const struct tep_format_field *start_field; + const struct tep_format_field *end_field; - start_field = tep_find_any_field(start_event, start_field_name); + start_field = get_event_field(start_event, start_field_name); if (!start_field) goto nodev; if (end_event) { - end_field = tep_find_any_field(end_event, end_field_name); + end_field = get_event_field(end_event, end_field_name); if (!start_field) goto nodev; @@ -644,7 +668,7 @@ static char *append_string(char *str, const char *space, const char *add) return str; } -static char *add_synth_field(struct tep_format_field *field, +static char *add_synth_field(const struct tep_format_field *field, const char *name) { const char *type; @@ -828,7 +852,7 @@ struct tracefs_synth *tracefs_synth_init(struct tep_handle *tep, } static int add_synth_fields(struct tracefs_synth *synth, - struct tep_format_field *field, + const struct tep_format_field *field, const char *name) { char **list; @@ -885,7 +909,7 @@ int tracefs_synth_add_match_field(struct tracefs_synth *synth, const char *end_match_field, const char *name) { - struct tep_format_field *key_field; + const struct tep_format_field *key_field; char **list; int ret; @@ -975,7 +999,7 @@ int tracefs_synth_add_compare_field(struct tracefs_synth *synth, enum tracefs_synth_calc calc, const char *name) { - struct tep_format_field *start_field; + const struct tep_format_field *start_field; char *start_arg; char *compare; int ret; @@ -1060,7 +1084,7 @@ int tracefs_synth_add_start_field(struct tracefs_synth *synth, const char *start_field, const char *name) { - struct tep_format_field *field; + const struct tep_format_field *field; char *start_arg; int ret; @@ -1114,7 +1138,7 @@ int tracefs_synth_add_end_field(struct tracefs_synth *synth, const char *end_field, const char *name) { - struct tep_format_field *field; + const struct tep_format_field *field; int ret; if (!synth || !end_field) { @@ -1235,7 +1259,7 @@ int tracefs_synth_add_start_filter(struct tracefs_synth *synth, const char *val, bool neg, bool or) { - struct tep_format_field *start_field; + const struct tep_format_field *start_field; bool is_string; if (!field || !val) @@ -1264,7 +1288,7 @@ int tracefs_synth_add_end_filter(struct tracefs_synth *synth, const char *val, bool neg, bool or) { - struct tep_format_field *end_field; + const struct tep_format_field *end_field; bool is_string; if (!field || !val) -- 2.30.2