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 X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C85CCA9EA0 for ; Fri, 25 Oct 2019 18:39:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6BE6A2070B for ; Fri, 25 Oct 2019 18:39:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="cgIYENo7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726599AbfJYSjG (ORCPT ); Fri, 25 Oct 2019 14:39:06 -0400 Received: from mail-pl1-f193.google.com ([209.85.214.193]:38777 "EHLO mail-pl1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726563AbfJYSjF (ORCPT ); Fri, 25 Oct 2019 14:39:05 -0400 Received: by mail-pl1-f193.google.com with SMTP id w8so1701405plq.5 for ; Fri, 25 Oct 2019 11:39:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=0mBz0irOSbKoy/XDaINS4+iJlxSn8cKAvdTj8tcbPwg=; b=cgIYENo7k5APpE4IBq2PiItOzWXffLlUY8LSgRGLUorI4ruDRnI2x+prBoQ920Rpvv DOxJmENbvzdCfdXjW+f++tAh6PNP+6RWJ94dkoJaZ/8C2YKdX29zHHCD/PLLPTCJl26D H7HlHwAcj6BzLj2IZ9F5r+fma9mfppYOuierYmydVDLX4COQJlLavRFApTuOF23+lxV/ jR3keN9q7Cl3ZHhIALMAuUIx0GjrhCuo5p6UlkCaDo2Nb+c+cTITcOtAZzg/8Yib+wqz dlXLbGgWJTaTPgnKsHjIHeBpWQfUH1rbBbsUxFB7G1LFiay6RKdAzvCRJdfkV1u9VYwr EbkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=0mBz0irOSbKoy/XDaINS4+iJlxSn8cKAvdTj8tcbPwg=; b=hPonwBua6fjhvMaNX94LH3NKRVxhvDWqv2uZ08wq1yNwWSbIlIFBg44WI0EHR94BMW s82b2Fr7VqOAFub9XBWCX7R8bZk/CSlVtmedNyq5N5EKMWVDOiBwFEUPrS4VT29QaWUJ /O71Q4AErrZ+uVaKKDHnAoJfBhytHx8s1sqpHz/7CPeJ603uo0CC5qiHG4fcd8CwZIbB jRagRS02gRBIKJoeQHa0nAvFZyU5KaZDr9L7Sk8XBjklnv2c8A4EBJ+llnLT0ScaI0eE EOx/MKqzrJKZy/3BD/6UpkIVMlg+i/S+vxU51yZN08D3ZFuqJqHSDF9tkhJh09nJsNU0 O2ag== X-Gm-Message-State: APjAAAVfQgwROrb1LDwsChq8C5p/XrIVGgmSTMIhk4sbmIPV0a63tSvs f/yiE8GBAvn2o6fQwsoki7Rh1w== X-Google-Smtp-Source: APXvYqzUjPgweqD1AiuoDmGlwKdY7a5li63Uz8In6IeLq1VbqLgnBcEFoaS/yqyK6DuP5e0yapaHag== X-Received: by 2002:a17:902:d201:: with SMTP id t1mr5539900ply.212.1572028745119; Fri, 25 Oct 2019 11:39:05 -0700 (PDT) Received: from cakuba.hsd1.ca.comcast.net (c-73-202-202-92.hsd1.ca.comcast.net. [73.202.202.92]) by smtp.gmail.com with ESMTPSA id a14sm2786692pgh.80.2019.10.25.11.39.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Oct 2019 11:39:04 -0700 (PDT) Date: Fri, 25 Oct 2019 11:39:01 -0700 From: Jakub Kicinski To: Jiri Olsa Cc: Alexei Starovoitov , Daniel Borkmann , netdev@vger.kernel.org, bpf@vger.kernel.org, Andrii Nakryiko , Yonghong Song , Martin KaFai Lau Subject: Re: [PATCH] bpftool: Allow to read btf as raw data Message-ID: <20191025113901.5a7e121e@cakuba.hsd1.ca.comcast.net> In-Reply-To: <20191024133025.10691-1-jolsa@kernel.org> References: <20191024133025.10691-1-jolsa@kernel.org> Organization: Netronome Systems, Ltd. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On Thu, 24 Oct 2019 15:30:25 +0200, Jiri Olsa wrote: > The bpftool interface stays the same, but now it's possible > to run it over BTF raw data, like: > > $ bpftool btf dump file /sys/kernel/btf/vmlinux > [1] INT '(anon)' size=4 bits_offset=0 nr_bits=32 encoding=(none) > [2] INT 'long unsigned int' size=8 bits_offset=0 nr_bits=64 encoding=(none) > [3] CONST '(anon)' type_id=2 > > Signed-off-by: Jiri Olsa Acked-by: Jakub Kicinski