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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7983C77B7A for ; Wed, 7 Jun 2023 15:10:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235659AbjFGPKa (ORCPT ); Wed, 7 Jun 2023 11:10:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54858 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239795AbjFGPKV (ORCPT ); Wed, 7 Jun 2023 11:10:21 -0400 Received: from smtpout.efficios.com (smtpout.efficios.com [167.114.26.122]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 023101734; Wed, 7 Jun 2023 08:10:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=efficios.com; s=smtpout1; t=1686150616; bh=EobN6Shy6YmwBECX8vJ30mW74AhlOJOLGmITM5vqgBQ=; h=Date:To:From:Subject:From; b=Yu9/VB3OLhLJzLk879e9NXBVbI4GZGtmSReAXb+vj5ZCxAssQ4q1InJ39WQN6KK/f nagIFLqnMQECDD+4Vm5P37y0VEGl7fOhPU6kXscedr3VcYYW7hJo7TiuCgLGisZUDC x1IPbZb7nxynMqKsnHDcQ3Vw1UxYvuZRIPZE0B4Gc5/XIix6JmzMCDfUcdbekXz0hq YMc/ozVIBbmUU/g3MNq9/GVtfVM1i+v3U4pwFYhcGgK+FEwoLMoebhGFDBMhtSKUuW bDxgdZk2z7CXa5P9smiknodxjCwfUhi8wzSz2u6Nwea8sBR6aB27521ekRGHZZLcCG PBeBV6hepXIiA== Received: from [172.16.0.134] (192-222-143-198.qc.cable.ebox.net [192.222.143.198]) by smtpout.efficios.com (Postfix) with ESMTPSA id 4QbrPN2ftJz16mt; Wed, 7 Jun 2023 11:10:16 -0400 (EDT) Message-ID: <90f91bb9-e174-7e8e-6922-5a27cc0eede9@efficios.com> Date: Wed, 7 Jun 2023 11:10:28 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Content-Language: en-US To: lttng-dev@lists.lttng.org, diamon-discuss@lists.linuxfoundation.org, linux-trace-users@vger.kernel.org, linux-kernel@vger.kernel.org From: Mathieu Desnoyers Subject: [RELEASE] LTTng UST 2.12.8/2.13.6 and LTTng modules 2.12.14/2.13.10 tracers Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, This is a stable release announcement for the LTTng UST and LTTng modules tracer projects. Those contain mainly bug fixes and add support for recent distributions and upstream kernels. What's new in both LTTng-UST 2.12.8 and 2.13.6: - Fix: use unaligned pointer accesses for lttng_inline_memcpy lttng_inline_memcpy receives pointers which can be unaligned. This causes issues (traps) specifically on arm 32-bit with 8-byte strings (including \0). - Fix: trace events in C constructors/destructors Adding a priority (150) to the tracepoint and tracepoint provider constructors/destructors ensures that we trace tracepoints located within C constructors/destructors with a higher priority value, including the default init priority of 65535, when the tracepoint vs tracepoint definition vs tracepoint probe provider are in different compile units (and in various link order one compared to another). - Fix: Reevaluate LTTNG_UST_TRACEPOINT_DEFINE each time tracepoint.h is included Fix issues with missing symbols in use-cases where tracef.h is included before defining LTTNG_UST_TRACEPOINT_DEFINE - Fix: segmentation fault on filter interpretation in "switch" mode Fix a bytecode interpreter crash when building with INTERPRETER_USE_SWITCH defined (used mainly for debugging purposes). What's new specifically in LTTng-UST 2.13.6: - Fix: `ip` context is expressed as a base-10 field The base for UST context field `ip` was changed from 16 (hexadecimal) to 10 (decimal), most likely an unintentional copy&paste error in 4e48b5d. - Various fixes to build with -std=c99. - Fix: trace events in C++ constructors/destructors Wrap constructor and destructor functions to invoke them as functions with the constructor/destructor GNU C attributes, which ensures that those constructors/destructors are ordered before/after C++ constructors/destructors. What's new in LTTng modules 2.12.14 and 2.13.10: - fix: kallsyms wrapper on CONFIG_PPC64_ELF_ABI_V1 Work-around PPC64 ELF ABI v1 function descriptor issues when using kallsyms. - Add support for RHEL 9.0 and 9.1. What's new specifically in LTTng modules 2.12.14: - Various tracepoint instrumentation fixes to support kernel v5.18. What's new specifically in LTTng modules 2.13.10: - Various tracepoint instrumentation fixes to support kernel v6.3. Feedback is welcome! Thanks, Mathieu -- Mathieu Desnoyers EfficiOS Inc. https://www.efficios.com