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=-7.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 75B2DC2BC84 for ; Thu, 3 Sep 2020 22:43:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D35E20786 for ; Thu, 3 Sep 2020 22:43:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="arGEoVNc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728134AbgICWnG (ORCPT ); Thu, 3 Sep 2020 18:43:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728486AbgICWm7 (ORCPT ); Thu, 3 Sep 2020 18:42:59 -0400 Received: from mail-pg1-x543.google.com (mail-pg1-x543.google.com [IPv6:2607:f8b0:4864:20::543]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0E606C061246 for ; Thu, 3 Sep 2020 15:42:59 -0700 (PDT) Received: by mail-pg1-x543.google.com with SMTP id m5so3264520pgj.9 for ; Thu, 03 Sep 2020 15:42:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=QrnbZATBHBxQZ7fajeBTKOWCmjpG/tdsnBaMo8RMsl0=; b=arGEoVNcgRk6SvvgwhWybl2yTQQ/41JitWigdBdGhFS95Gmb9SWRyyuaVbLozcxhlL y6JEOwrroo7lJUf2OLWmcs3N8AyWgT7zx61RPK1c7lAmQb6YFg/HrUMlem7+hTwvS/bi td4g7TX1ItoN+b7bfyXxlkOCNCh28KvNVjWIM= 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:references :mime-version:content-disposition:in-reply-to; bh=QrnbZATBHBxQZ7fajeBTKOWCmjpG/tdsnBaMo8RMsl0=; b=Rzg96XI/PoyyL9PXHUmAF1Vjcsg0At0sZFWnA3oE8JfXLtnlmwYvyHcpY/4jqD5E3k Gi/hoAHgLEkuar+nN8Bl0ILw0ba1l/Cr5i/TVutNpJKGsF6OULfU0Z4ghPZCuuSV3zJj KYEIwpjJ+PbY1ng6Q59qa9DJLaf3D1HTmZndaCd9N4hhk4ilntd9xRDe1h2LZW/O1hQX D0DoByA/nwXXAvq/kjS2xAZVnKN5vt+7opx+YYgLqUMr4fk4+5ksseUtRfGoAf35UkyQ rvqXeop7KHZzMFLAz6C1nEHq9UpJNjaZyJz+mlyEHoRTVarRQeFjXxqh/za96i1QGbxe 90/A== X-Gm-Message-State: AOAM530eLRPrA6GyrcjhUS+bXTOGpRS9nTX8cvzNerSQxpHzy2gvtE4+ LWKYsPszP8ZoJIBXffjZwijTFw== X-Google-Smtp-Source: ABdhPJy5mdmPjJfruWrIY+6IxKRglw5a/F5w2SGFD8qLkoS56YGpVx+oFe/zdag2OFqeajEXIFLqFA== X-Received: by 2002:a17:902:9a45:: with SMTP id x5mr6151434plv.208.1599172978633; Thu, 03 Sep 2020 15:42:58 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id r7sm4305639pfl.186.2020.09.03.15.42.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Sep 2020 15:42:57 -0700 (PDT) Date: Thu, 3 Sep 2020 15:42:56 -0700 From: Kees Cook To: Sami Tolvanen Cc: Masahiro Yamada , Will Deacon , Peter Zijlstra , Steven Rostedt , Greg Kroah-Hartman , "Paul E. McKenney" , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH v2 18/28] modpost: lto: strip .lto from module names Message-ID: <202009031542.1F8B3012FD@keescook> References: <20200624203200.78870-1-samitolvanen@google.com> <20200903203053.3411268-1-samitolvanen@google.com> <20200903203053.3411268-19-samitolvanen@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200903203053.3411268-19-samitolvanen@google.com> Sender: linux-arch-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org On Thu, Sep 03, 2020 at 01:30:43PM -0700, Sami Tolvanen wrote: > With LTO, everything is compiled into LLVM bitcode, so we have to link > each module into native code before modpost. Kbuild uses the .lto.o > suffix for these files, which also ends up in module information. This > change strips the unnecessary .lto suffix from the module name. > > Suggested-by: Bill Wendling > Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook -- Kees Cook