From patchwork Thu Dec 2 12:24:57 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: 12652461 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 36D4FC433FE for ; Thu, 2 Dec 2021 12:25:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232977AbhLBM2n (ORCPT ); Thu, 2 Dec 2021 07:28:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234072AbhLBM2m (ORCPT ); Thu, 2 Dec 2021 07:28:42 -0500 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C531C06174A for ; Thu, 2 Dec 2021 04:25:19 -0800 (PST) Received: by mail-ed1-x52b.google.com with SMTP id z5so50278331edd.3 for ; Thu, 02 Dec 2021 04:25:19 -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=ztvDFnMs8qoOx4qtDt7YdpO/uQKxoQoibBCS6/uCJFU=; b=d8Agr4jHEKf9LQaWES9AJvVkoP/rvmc/je7+stSA9t/muacz3XHeZWM9Nqar1Gxwgm 5uviLyd7r+53XvrA/gC+e/695uMjRaHuIXH1ndIrW/1mdJx8ODQnHn4fkXheS+As10Ft 7trxdcJ+bIvLLbNXVfouq/CaKbDBS+JqLLTkjDlGt7xR460++fbQ1/xHVSxAhW6X9kzW gQrIuxiezlk2aQKc2CTMo3SXyS+sSFgAk3AtlS/zpG09SU5Uk0W+aeckj6KljEAQYUmC vpQUEzmXl2riFMQFGhPeVp576PdZtaUNo/PhSDZoJjb1g8fbmP7TbDnz9/llMM5tnPtj B3Hw== 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=ztvDFnMs8qoOx4qtDt7YdpO/uQKxoQoibBCS6/uCJFU=; b=DKjt7HZhB3xEg/5hzlo0nhofeICf13z6w+Kaehe7vGPTCEZoVE5kj3uoiBAp9BAL9a dTvDR5fc9eDP9nIpPmP00MGJm9LzOjzesgndBfmgGro0MneP/g8hbG19fFhrlFice2x5 4o2XppcL8+xubzAlxmyXeSS40CcZNjSKgdRVXJjhRk4Epj1FvMWfBemqgBEENOahQDGm mxbgY2qBipr9uovvphWu5vDj/svpK6nhKZGzSgR1G+98HY0xM2Ta4pLwd/XSMwWnue8j 4R7jFb9sz2xgnGdBO5uLSDheRjeFn6Cr2FKVsL55yZWIIquXrjkRTysRFLsz9YAtvDEQ 7hxw== X-Gm-Message-State: AOAM5326nT6wswfCD9GpQiShtq6Xl+iD/ShgLnvaiR9BWjzqlDetWjHF RBwqs53HsMrN/2y7EoHCWWk1PW8JPTc+pw== X-Google-Smtp-Source: ABdhPJwY3sCm+zX3Q1ESIhtiPW6G+nxxpYygua2faIb4iVUvZs+BKyCFB/yPj4TPPeqyy8GWU4LMfQ== X-Received: by 2002:a05:6402:34cd:: with SMTP id w13mr17058284edc.112.1638447918223; Thu, 02 Dec 2021 04:25:18 -0800 (PST) Received: from oberon.zico.biz.zico.biz ([83.222.187.186]) by smtp.gmail.com with ESMTPSA id eg8sm1998507edb.75.2021.12.02.04.25.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 02 Dec 2021 04:25:17 -0800 (PST) From: "Tzvetomir Stoyanov (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v5 10/20] trace-cmd library: Decompress the options section, if it is compressed Date: Thu, 2 Dec 2021 14:24:57 +0200 Message-Id: <20211202122507.43572-11-tz.stoyanov@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211202122507.43572-1-tz.stoyanov@gmail.com> References: <20211202122507.43572-1-tz.stoyanov@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org In trace file version 7, options section can be compressed. Extended the options handling decompression if needed . Signed-off-by: Tzvetomir Stoyanov (VMware) --- lib/trace-cmd/trace-input.c | 45 ++++++++++++++++++++++++++----------- 1 file changed, 32 insertions(+), 13 deletions(-) diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c index 8db43708..bd655d0c 100644 --- a/lib/trace-cmd/trace-input.c +++ b/lib/trace-cmd/trace-input.c @@ -3025,6 +3025,7 @@ static int handle_options(struct tracecmd_input *handle) unsigned short id, flags; char *cpustats = NULL; struct hook_list *hook; + bool compress = false; char *buf; int cpus; int ret; @@ -3036,23 +3037,32 @@ static int handle_options(struct tracecmd_input *handle) return -1; if (id != TRACECMD_OPTION_DONE) return -1; + if (flags & TRACECMD_SEC_FL_COMPRESS) + compress = true; } + if (compress && in_uncompress_block(handle)) + return -1; for (;;) { - if (read2(handle, &option)) - return -1; + ret = read2(handle, &option); + if (ret) + goto out; if (!HAS_SECTIONS(handle) && option == TRACECMD_OPTION_DONE) break; /* next 4 bytes is the size of the option */ - if (read4(handle, &size)) - return -1; + ret = read4(handle, &size); + if (ret) + goto out; buf = malloc(size); - if (!buf) - return -ENOMEM; - if (do_read_check(handle, buf, size)) - return -1; + if (!buf) { + ret = -ENOMEM; + goto out; + } + ret = do_read_check(handle, buf, size); + if (ret) + goto out; switch (option) { case TRACECMD_OPTION_DATE: @@ -3106,15 +3116,17 @@ static int handle_options(struct tracecmd_input *handle) buf + 8, 4); ret = tsync_cpu_offsets_load(handle, buf + 12, size - 12); if (ret < 0) - return ret; + goto out; tracecmd_enable_tsync(handle, true); break; case TRACECMD_OPTION_CPUSTAT: buf[size-1] = '\n'; cpustats = realloc(handle->cpustats, handle->cpustats_size + size + 1); - if (!cpustats) - return -ENOMEM; + if (!cpustats) { + ret = -ENOMEM; + goto out; + } memcpy(cpustats + handle->cpustats_size, buf, size); handle->cpustats_size += size; cpustats[handle->cpustats_size] = 0; @@ -3124,7 +3136,7 @@ static int handle_options(struct tracecmd_input *handle) case TRACECMD_OPTION_BUFFER_TEXT: ret = handle_buffer_option(handle, option, buf, size); if (ret < 0) - return ret; + goto out; break; case TRACECMD_OPTION_TRACECLOCK: if (!handle->ts2secs) @@ -3183,6 +3195,8 @@ static int handle_options(struct tracecmd_input *handle) tep_read_number(handle->pevent, buf, 8), 0); break; case TRACECMD_OPTION_DONE: + if (compress) + in_uncompress_reset(handle); ret = handle_option_done(handle, buf, size); free(buf); return ret; @@ -3195,7 +3209,12 @@ static int handle_options(struct tracecmd_input *handle) } - return 0; + ret = 0; + +out: + if (compress) + in_uncompress_reset(handle); + return ret; } static int read_options_type(struct tracecmd_input *handle)