From patchwork Fri Oct 8 04:25:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Tzvetomir Stoyanov (VMware)" X-Patchwork-Id: 12544353 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0E07C433FE for ; Fri, 8 Oct 2021 04:25:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A258610CE for ; Fri, 8 Oct 2021 04:25:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230134AbhJHE1R (ORCPT ); Fri, 8 Oct 2021 00:27:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51012 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229757AbhJHE1R (ORCPT ); Fri, 8 Oct 2021 00:27:17 -0400 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 02039C061570 for ; Thu, 7 Oct 2021 21:25:22 -0700 (PDT) Received: by mail-ed1-x533.google.com with SMTP id d3so3914030edp.3 for ; Thu, 07 Oct 2021 21:25:21 -0700 (PDT) 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=1fqdWuvMaHgw48cIfIMXHNlhX0xndP0gWQV3+EcLyFg=; b=dhUwMUtPiHSVCvwJgNlGdVwrUVOXHuqCIMB26w11y7oLgpLp73E0QcZK35kEF9MO1u Fz9wPH+7WqVGg+BqO2NQzHnXhXgnpGGVIpGPTaQhaFveVbM46XGlOn3090LihKn2IdDB QRwjd7xGEnV0lWK9cxxgd7TGy8klRfJ9W/QbZ8p00IKrX/dRdOO1A7qD3Am/pGqV6mFz E1xLIiRVJ20ypjDJSzxWiEBMjhSD3mIj3n/9LACdKG4iz9MxmyZmfw23s2c4WfTZt5kv 27xUXw3B5pHNwPn4ZuytRNkGPyQ73YJ2hE6P9pOfnSQzHPwHYCG28dCKhoSxvlcs/LJE 0ROg== 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=1fqdWuvMaHgw48cIfIMXHNlhX0xndP0gWQV3+EcLyFg=; b=bjWrp6FArmqw5PFB6ESWdqa95g+VrJb02tSVuPQ0Kdr0R3AELjwMJY2HqzIVFDZU49 1Nk0qhhQKALUJEDWa57G83xc5GNDhZFaCSvcGqGQJ1/IPo+FYauyGUkBnPcaj6uGNDNf Qdn8u9X2WmN0AL64mkuEE17mDXN4K/Dhm/bs+7JJ5+QtmTjwSIHYul6ix3a0zv2ys1ed xgUrcCmi6RL5LMQSw4zVQYSpq208Oc8ax/F8DsDGvTwcKJlUZsujqxOlKGSyEeS6CPpR 5OPOCV5YaoQ86KXB6F6tKl0ILtWY5OO6cP22J9yy3MtmVYcL2WnoCDtvbNg73H5K5Gs5 OLag== X-Gm-Message-State: AOAM532JXnOLEbF45Nk+3y8E+QZ+rpejnBGJcv/+ROWpYeOwAAwG2p+v KsMjHXIYdfaRs+m0ZDmf4P8f8CyhOMnYrg== X-Google-Smtp-Source: ABdhPJzzSI/70h1CK/FPXbtgdfl/tEycA49MVgdfowaw6sAFjfX9RDJz2XRxFkzd4lCA569SWsDtWw== X-Received: by 2002:a17:906:658:: with SMTP id t24mr1279564ejb.358.1633667120592; Thu, 07 Oct 2021 21:25:20 -0700 (PDT) Received: from oberon.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id e7sm506320edz.95.2021.10.07.21.25.19 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Oct 2021 21:25:20 -0700 (PDT) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v3 8/8] trace-cmd: Add new subcommand "convert" Date: Fri, 8 Oct 2021 07:25:10 +0300 Message-Id: <20211008042510.978362-9-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211008042510.978362-1-tz.stoyanov@gmail.com> References: <20211008042510.978362-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org There is a need to convert trace files between different versions. A new "trace-cmd convert" subcommand is introduced, which reads an input trace file and copies to an output trace file. Both files can be from different versions. trace-cmd convert -i -o --file-version --compression Signed-off-by: Tzvetomir Stoyanov (VMware) --- tracecmd/Makefile | 1 + tracecmd/include/trace-local.h | 2 + tracecmd/trace-cmd.c | 1 + tracecmd/trace-convert.c | 106 +++++++++++++++++++++++++++++++++ tracecmd/trace-usage.c | 13 ++++ 5 files changed, 123 insertions(+) create mode 100644 tracecmd/trace-convert.c diff --git a/tracecmd/Makefile b/tracecmd/Makefile index b7a23dc4..56742f0a 100644 --- a/tracecmd/Makefile +++ b/tracecmd/Makefile @@ -36,6 +36,7 @@ TRACE_CMD_OBJS += trace-usage.o TRACE_CMD_OBJS += trace-dump.o TRACE_CMD_OBJS += trace-clear.o TRACE_CMD_OBJS += trace-vm.o +TRACE_CMD_OBJS += trace-convert.o ifeq ($(VSOCK_DEFINED), 1) TRACE_CMD_OBJS += trace-agent.o diff --git a/tracecmd/include/trace-local.h b/tracecmd/include/trace-local.h index e9a0aea8..13dab44c 100644 --- a/tracecmd/include/trace-local.h +++ b/tracecmd/include/trace-local.h @@ -110,6 +110,8 @@ void trace_usage(int argc, char **argv); void trace_dump(int argc, char **argv); +void trace_convert(int argc, char **argv); + int trace_record_agent(struct tracecmd_msg_handle *msg_handle, int cpus, int *fds, int argc, char **argv, bool use_fifos, diff --git a/tracecmd/trace-cmd.c b/tracecmd/trace-cmd.c index 9fc126e4..a83a8d0b 100644 --- a/tracecmd/trace-cmd.c +++ b/tracecmd/trace-cmd.c @@ -133,6 +133,7 @@ struct command commands[] = { {"list", trace_list}, {"help", trace_usage}, {"dump", trace_dump}, + {"convert", trace_convert}, {"-h", trace_usage}, }; diff --git a/tracecmd/trace-convert.c b/tracecmd/trace-convert.c new file mode 100644 index 00000000..c3b2c1d7 --- /dev/null +++ b/tracecmd/trace-convert.c @@ -0,0 +1,106 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2021, VMware, Tzvetomir Stoyanov + */ +#include +#include +#include +#include +#include + +#include "trace-local.h" +#include "trace-cmd.h" +#include "trace-cmd-private.h" + +static void convert_file(const char *in, const char *out, int file_version, char *compr) +{ + struct tracecmd_input *ihandle; + struct tracecmd_output *ohandle; + + ihandle = tracecmd_open_head(in, 0); + if (!ihandle) + die("error reading %s", in); + ohandle = tracecmd_copy(ihandle, out, TRACECMD_FILE_CPU_FLYRECORD, file_version, compr); + if (!ohandle) + die("error writing %s", out); + tracecmd_output_close(ohandle); + tracecmd_close(ihandle); +} + +enum { + OPT_file_version = 254, + OPT_compression = 255, +}; + +void trace_convert(int argc, char **argv) +{ + char *input_file = NULL; + char *output_file = NULL; + char *compression = NULL; + int file_version = FILE_VERSION_DEFAULT; + int c; + + if (argc < 2) + usage(argv); + + if (strcmp(argv[1], "convert") != 0) + usage(argv); + for (;;) { + int option_index = 0; + static struct option long_options[] = { + {"compression", required_argument, NULL, OPT_compression}, + {"file-version", required_argument, NULL, OPT_file_version}, + {"help", no_argument, NULL, '?'}, + {NULL, 0, NULL, 0} + }; + + c = getopt_long (argc-1, argv+1, "+hi:o:", long_options, &option_index); + if (c == -1) + break; + switch (c) { + case 'i': + if (input_file) + die("Only one input file is supported, %s already set", + input_file); + input_file = optarg; + break; + case 'o': + if (output_file) + die("Only one output file is supported, %s already set", + output_file); + output_file = optarg; + break; + case OPT_compression: + if (strcmp(optarg, "any") && strcmp(optarg, "none") && + !tracecmd_compress_is_supported(optarg, NULL)) + die("Compression algorithm %s is not supported", optarg); + compression = optarg; + break; + case OPT_file_version: + file_version = atoi(optarg); + if (file_version < FILE_VERSION_MIN || file_version > FILE_VERSION_MAX) + die("Unsupported file version %d, " + "supported versions are from %d to %d", + file_version, FILE_VERSION_MIN, FILE_VERSION_MAX); + + break; + case 'h': + case '?': + default: + usage(argv); + } + } + + if ((argc - optind) >= 2) { + if (output_file) + usage(argv); + output_file = argv[optind + 1]; + } + + if (!input_file) + input_file = DEFAULT_INPUT_FILE; + if (!output_file) + usage(argv); + + convert_file(input_file, output_file, file_version, compression); +} diff --git a/tracecmd/trace-usage.c b/tracecmd/trace-usage.c index 77898c1c..ec0af46f 100644 --- a/tracecmd/trace-usage.c +++ b/tracecmd/trace-usage.c @@ -412,6 +412,19 @@ static struct usage_help usage_help[] = { " -h, --help show usage information\n" " --verbose 'level' Set the desired log level\n" }, + { + "convert", + "convert trace file to different version", + " %s convert [options]\n" + " -i input file, default is trace.dat\n" + " -o output file, mandatory parameter.\n" + " The output file can be specified also as last argument of the command\n" + " --file-version set the desired trace file version\n" + " --compression compress the trace output file, one of these strings can be passed:\n" + " any - auto select the best available compression algorithm\n" + " none - do not compress the trace file\n" + " name - the name of the desired compression algorithms\n" + " available algorithms can be listed with trace-cmd list -c\n" }, { NULL, NULL, NULL }