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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 89D7CC43331 for ; Thu, 2 Apr 2020 22:50:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64E212072E for ; Thu, 2 Apr 2020 22:50:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389034AbgDBWuE (ORCPT ); Thu, 2 Apr 2020 18:50:04 -0400 Received: from www62.your-server.de ([213.133.104.62]:34828 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387919AbgDBWuE (ORCPT ); Thu, 2 Apr 2020 18:50:04 -0400 Received: from sslproxy05.your-server.de ([78.46.172.2]) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1jK8et-0004Gd-BY; Fri, 03 Apr 2020 00:49:59 +0200 Received: from [178.195.186.98] (helo=pc-9.home) by sslproxy05.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1jK8es-000S0u-Vb; Fri, 03 Apr 2020 00:49:59 +0200 Subject: Re: [PATCH v5 bpf] kbuild: fix dependencies for DEBUG_INFO_BTF To: Slava Bacherikov , andriin@fb.com Cc: keescook@chromium.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org, jannh@google.com, alexei.starovoitov@gmail.com, kernel-hardening@lists.openwall.com, liuyd.fnst@cn.fujitsu.com, kpsingh@google.com References: <202004021328.E6161480@keescook> <20200402204138.408021-1-slava@bacher09.org> From: Daniel Borkmann Message-ID: Date: Fri, 3 Apr 2020 00:49:58 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <20200402204138.408021-1-slava@bacher09.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.102.2/25770/Thu Apr 2 14:58:54 2020) Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org On 4/2/20 10:41 PM, Slava Bacherikov wrote: > Currently turning on DEBUG_INFO_SPLIT when DEBUG_INFO_BTF is also > enabled will produce invalid btf file, since gen_btf function in > link-vmlinux.sh script doesn't handle *.dwo files. > > Enabling DEBUG_INFO_REDUCED will also produce invalid btf file, and > using GCC_PLUGIN_RANDSTRUCT with BTF makes no sense. > > Signed-off-by: Slava Bacherikov > Reported-by: Jann Horn > Reported-by: Liu Yiding > Acked-by: KP Singh > Acked-by: Andrii Nakryiko > Reviewed-by: Kees Cook > Fixes: e83b9f55448a ("kbuild: add ability to generate BTF type info for vmlinux") Applied, thanks!