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=-22.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT,USER_IN_DEF_DKIM_WL 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 357D9C432C2 for ; Mon, 23 Sep 2019 22:26:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F3DC920856 for ; Mon, 23 Sep 2019 22:26:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="QkV2uEzl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2503250AbfIWWYX (ORCPT ); Mon, 23 Sep 2019 18:24:23 -0400 Received: from mail-pg1-f202.google.com ([209.85.215.202]:56389 "EHLO mail-pg1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390460AbfIWWYW (ORCPT ); Mon, 23 Sep 2019 18:24:22 -0400 Received: by mail-pg1-f202.google.com with SMTP id 135so4867502pgc.23 for ; Mon, 23 Sep 2019 15:24:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=wBbyke/1peveMpLtlqWbxcVdjMGJbQeDIQGAiWlcIhI=; b=QkV2uEzl0J91ToT9bwa71ngvkxZNYIMmxnl+jVL0xM3sLqOb8PhAPO36SU43Ejv5In x6LOK3aSC0qaPa7IHZ4l8FVTL5oWw3Lr1MyGmUMlqG7upjwfyAwWirWrDZAg5N/LYYSf sJIqOLxSa7qJUEZFOg8tGWaHaKsiViBd2Do9CFKmCJc3zRRNOm1/d8lPBjHEXBjpdDd9 Fwk+WCo0lo7IFC98NB/yvRvIuV1FknfVQ+H860kZ4TR82W+TkSYG18bv+VKm6vi8VGCS uR0svdGUeTcC4EXk1bVjWP7XS9IplSM2Zg/7wWMW8FGp5zbqtQ2lLqcSFIyqw4sc0k/x 3g5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=wBbyke/1peveMpLtlqWbxcVdjMGJbQeDIQGAiWlcIhI=; b=LErHaHfDSL4PjdbfvVy/BEH3CtKcsLx6McS0wLpfIz6vJI6t1rpN38a+CsJDW/1kFj 0VGNst387qVrkXMLW7nYWaWc2YKwwJIWUsLBJs7KpuvRwSqki7+u0RyO0UiHeLpQfUoR foXCdaAT5qSCSR/KHOvUlkEIgS8f0EbeMSFLYPfo6oYz805nH1x/5/UdMvHs2FGXPiIv mhmyc8toFO8PCOtIfgEqXDD70Sg84dtk2IU8OK3Dr9lmMzHgi9UKRK8K4Y/kma7s45D0 iqUaKH7jxcmMmzCsXZyqCNwPMG4AmiOxkrnCbTEJXrRLgTziMUsHTw4rULKcFpgYJjLP /BIQ== X-Gm-Message-State: APjAAAW+AO9kIG/w9/tkrF8OVvkP1JCbVJXRMr4taEf2+c/57uI7awpD B7tqyEL2JW+cOxzLXFkhqFpN6+t2vH/ufINvGHY= X-Google-Smtp-Source: APXvYqwclkudlhpDijvGvhUJRap5SXd4lJiUN5+2zLrXyLkHY+XZ6dnG/AS8h9uPn66Uq/2CoeMokkBwIHkGskWq5hw= X-Received: by 2002:a63:2006:: with SMTP id g6mr2091942pgg.287.1569277461795; Mon, 23 Sep 2019 15:24:21 -0700 (PDT) Date: Mon, 23 Sep 2019 15:24:02 -0700 Message-Id: <20190923222403.22956-1-ndesaulniers@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.23.0.351.gc4317032e6-goog Subject: [PATCH] x86, realmode: explicitly set ENTRY in linker script From: Nick Desaulniers To: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de Cc: clang-built-linux@googlegroups.com, Nick Desaulniers , "H. Peter Anvin" , x86@kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linking with ld.lld via $ make LD=ld.lld produces the warning: ld.lld: warning: cannot find entry symbol _start; defaulting to 0x1000 Linking with ld.bfd shows the default entry is 0x1000: $ readelf -h arch/x86/realmode/rm/realmode.elf | grep Entry Entry point address: 0x1000 While ld.lld is being pedantic, just set the entry point explicitly, instead of depending on the implicit default. Link: https://github.com/ClangBuiltLinux/linux/issues/216 Signed-off-by: Nick Desaulniers --- arch/x86/realmode/rm/realmode.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/realmode/rm/realmode.lds.S b/arch/x86/realmode/rm/realmode.lds.S index 3bb980800c58..2034f5f79bff 100644 --- a/arch/x86/realmode/rm/realmode.lds.S +++ b/arch/x86/realmode/rm/realmode.lds.S @@ -11,6 +11,7 @@ OUTPUT_FORMAT("elf32-i386") OUTPUT_ARCH(i386) +ENTRY(0x1000) SECTIONS { -- 2.23.0.351.gc4317032e6-goog