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 7DA97C00140 for ; Wed, 24 Aug 2022 14:33:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236248AbiHXOdG (ORCPT ); Wed, 24 Aug 2022 10:33:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233356AbiHXOdF (ORCPT ); Wed, 24 Aug 2022 10:33:05 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2628E3C8FD; Wed, 24 Aug 2022 07:33:02 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id CC524B82543; Wed, 24 Aug 2022 14:33:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65891C433D6; Wed, 24 Aug 2022 14:32:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1661351579; bh=cn4rzl2bL2LroQO1moqWO0d1Nx/QYQ08ecAD4L1+OKM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=io0hOEygoeBsYl/hzJ+13wtlQ/uk6Vvd14AkR/HlZxUe+UrsLJTgIFilHkkMDsjw+ 9lAsr0A2fOJQpPbDPQ7YOw8oft1GRF5E4PYRWDYq6A0iLfL/0LoPfbj2JlwyxQ+ZZH yO2nW5ogE2l/X1WLO9lkQ3wYYoo+z9pPsRy8HmlvsX6ucBckA66tBGxWCbcZR1D/Jq 5L2IXpW//mhqX7e1gQkIGUVuzeWiXg//AT7juC2hhZVP6C4n3nJ3JBnQzr6OotrCZQ IGYr2dFXHmqfR9RYyleKrcqydULViBRj1jMj6OhhAfvqa3qt5NfXpuzAR6o9NK5xbU YJxhRxdbjUZUg== Received: by quaco.ghostprotocols.net (Postfix, from userid 1000) id BC1CD404A1; Wed, 24 Aug 2022 11:32:56 -0300 (-03) Date: Wed, 24 Aug 2022 11:32:56 -0300 From: Arnaldo Carvalho de Melo To: Luna Jernberg Cc: dwarves@vger.kernel.org, Linux Kernel Mailing List , Alibek Omarov , Kornilios Kourtis , Kui-Feng Lee , Yonghong Song , bpf@vger.kernel.org, Jiri Olsa Subject: Re: ANNOUNCE: pahole v1.24 (Faster BTF encoding, 64-bit BTF enum entries) Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Url: http://acmel.wordpress.com Precedence: bulk List-ID: X-Mailing-List: dwarves@vger.kernel.org Em Wed, Aug 24, 2022 at 03:23:29PM +0200, Luna Jernberg escreveu: > This package breaks on Arch Linux at the moment and if you are using Arch > its recommended that you downgrade to 1.23 Breaks in what sense? Can you please provide details? - Arnaldo > On Tue, Aug 23, 2022 at 1:59 AM Arnaldo Carvalho de Melo > wrote: > > > Hi, > > > > The v1.24 release of pahole and its friends is out, with faster > > BTF generation by parallelizing the encoding part in addition to the > > previoulsy parallelized DWARF loading, support for 64-bit BTF enumeration > > entries, signed BTF encoding of 'char', exclude/select DWARF loading > > based on the language that generated the objects, etc. > > > > Main git repo: > > > > git://git.kernel.org/pub/scm/devel/pahole/pahole.git > > > > Mirror git repo: > > > > https://github.com/acmel/dwarves.git > > > > tarball + gpg signature: > > > > https://fedorapeople.org/~acme/dwarves/dwarves-1.24.tar.xz > > https://fedorapeople.org/~acme/dwarves/dwarves-1.24.tar.bz2 > > https://fedorapeople.org/~acme/dwarves/dwarves-1.24.tar.sign > > > > Thanks a lot to all the contributors and distro packagers, you're > > on the > > CC list, I appreciate a lot the work you put into these tools, > > > > Best Regards, > > > > BTF encoder: > > > > - Add support to BTF_KIND_ENUM64 to represent enumeration entries with > > more than 32 bits. > > > > - Support multithreaded encoding, in addition to DWARF multithreaded > > loading, speeding up the process. > > > > Selected just like DWARF multithreaded loading, using the 'pahole -j' > > option. > > > > - Encode 'char' type as signed. > > > > BTF Loader: > > > > - Add support to BTF_KIND_ENUM64. > > > > pahole: > > > > - Introduce --lang and --lang_exclude to specify the language the > > DWARF compile units were originated from to use or filter. > > > > Use case is to exclude Rust compile units while aspects of the > > DWARF generated for it get sorted out in a way that the kernel > > BPF verifier don't refuse loading the BTF generated from them. > > > > - Introduce --compile to generate compilable code in a similar fashion to: > > > > bpftool btf dump file vmlinux format c > vmlinux.h > > > > As with 'bpftool', this will notice type shadowing, i.e. multiple types > > with the same name and will disambiguate by adding a suffix. > > > > - Don't segfault when processing bogus files. > > -- - Arnaldo