From patchwork Wed Jan 19 08:28:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 12717257 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0917EC433EF for ; Wed, 19 Jan 2022 08:28:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352027AbiASI2w (ORCPT ); Wed, 19 Jan 2022 03:28:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229455AbiASI2w (ORCPT ); Wed, 19 Jan 2022 03:28:52 -0500 Received: from mail-ed1-x52e.google.com (mail-ed1-x52e.google.com [IPv6:2a00:1450:4864:20::52e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E75E3C06161C for ; Wed, 19 Jan 2022 00:28:51 -0800 (PST) Received: by mail-ed1-x52e.google.com with SMTP id a18so7588197edj.7 for ; Wed, 19 Jan 2022 00:28:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=057i7c+9MvT661qKYwzUh3d658GbAi540WoCbvc0TjI=; b=Mrb4bSb+upEuIUtbomvUzREaDLaIPNwo+HIqsijUKrCeqvnC6g517NAm6x61f8g7Lh mrvOSgDOpsMpM3BqcA0ngaXmEmoJxUYPc9qbnWTZ8lOeJZiU1sHyWXEvkzyhRedu/l3L kFpZ/YqhPgHizK1AXcCHBLiYI2Pz8dYxnz7KXgi0A6x/QXXxhnkiD7OPN6lWjGne8wVD nk3BfMOZjVXfnfQ5+PYetjqf6JdzuTo6o8BQJG/AmJB9m74Zj9TGOcI4J+JxOlQVrsK0 m1ZhszMEfBKsRPPOpEobhuVKhux1Hb0vhYc/L0ezQ2FkmM/zpOvjFGs30ZnxWWEO8zrT 39BA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=057i7c+9MvT661qKYwzUh3d658GbAi540WoCbvc0TjI=; b=L770/TaOxSOrZNTxlzICJOv5nxruYvMTZzdjVy+MSf89n1/vKrzObXoLMK0YR098Uw 6m0f/bNuy9aj066knisL0Wm8hMrHYzLH5+7U0gM0nXkoSVeuMJ4jVfRRGt8W5fDWeeLx 2RpSqP7zGzap8QVfU9R6WrznvJ0l8JaNT2SYrD0LOFGPOu70rEKQj+4dXX7yXltfuOGc lmt7nbD11QIdOXA4QslZZmi1IfI/IoHzreyVv1w/vqkEJmccMPDgq5a8uvm6c8NYdZXc xdbdKGOSiB1+SE51czb47h4rpRDZs04YI2BN2TOc3+sGcDSkHFJRqLUGdZAnCTzsa3cL SD0Q== X-Gm-Message-State: AOAM533kPv0485JkWPhr24HvDLYH2oWT87Vyd/V5kzMj+WfLN8TN+Njn aNaLRGMgX6qi6aGxh+lDCDF8th7zcz8= X-Google-Smtp-Source: ABdhPJwe8tS/0/IbGYZtBf/ueYSnaIej2f5/8gEiImxkzvgjDMPHa3TOoaL9bNO1030ab46Ekg66KQ== X-Received: by 2002:a05:6402:2550:: with SMTP id l16mr29093267edb.83.1642580930528; Wed, 19 Jan 2022 00:28:50 -0800 (PST) Received: from oberon.zico.biz.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id t14sm860838edq.24.2022.01.19.00.28.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jan 2022 00:28:50 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v7 4/9] trace-cmd library: New API to copy buffer description between trace files Date: Wed, 19 Jan 2022 10:28:40 +0200 Message-Id: <20220119082845.245993-5-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220119082845.245993-1-tz.stoyanov@gmail.com> References: <20220119082845.245993-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org A new library API is introduced, to copy buffers description between trace files: tracecmd_copy_buffer_descr() Signed-off-by: Tzvetomir Stoyanov (VMware) --- lib/trace-cmd/include/private/trace-cmd-private.h | 2 ++ lib/trace-cmd/trace-input.c | 13 +++++++++++++ 2 files changed, 15 insertions(+) diff --git a/lib/trace-cmd/include/private/trace-cmd-private.h b/lib/trace-cmd/include/private/trace-cmd-private.h index 6e15c097..279af562 100644 --- a/lib/trace-cmd/include/private/trace-cmd-private.h +++ b/lib/trace-cmd/include/private/trace-cmd-private.h @@ -195,6 +195,8 @@ int tracecmd_copy_headers(struct tracecmd_input *in_handle, struct tracecmd_output *out_handle, enum tracecmd_file_states start_state, enum tracecmd_file_states end_state); +int tracecmd_copy_buffer_descr(struct tracecmd_input *in_handle, + struct tracecmd_output *out_handle); void tracecmd_set_flag(struct tracecmd_input *handle, int flag); void tracecmd_clear_flag(struct tracecmd_input *handle, int flag); unsigned long tracecmd_get_flags(struct tracecmd_input *handle); diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c index d35be370..b6ad92a8 100644 --- a/lib/trace-cmd/trace-input.c +++ b/lib/trace-cmd/trace-input.c @@ -4968,6 +4968,19 @@ int tracecmd_copy_headers(struct tracecmd_input *in_handle, return ret < 0 ? -1 : 0; } +int tracecmd_copy_buffer_descr(struct tracecmd_input *in_handle, + struct tracecmd_output *out_handle) +{ + int i; + + if (tracecmd_get_out_file_version(out_handle) >= FILE_VERSION_SECTIONS) + return 0; + + for (i = 0; i < in_handle->nr_buffers; i++) + tracecmd_add_buffer_info(out_handle, in_handle->buffers[i].name, 0); + return tracecmd_write_buffer_info(out_handle); +} + /** * tracecmd_record_at_buffer_start - return true if record is first on subbuffer * @handle: input handle for the trace.dat file