From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 633241537C6 for ; Fri, 28 Mar 2025 12:20:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=93.17.236.30 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743164411; cv=none; b=bf8zavOdBw9mRkoh6MvLXGJuhso2RSrBViEmn70KXRDPUsDbDSkdImRHXyTBff0Ev7z5tmCAUtWBX2eyRAlUG1qVOpyJhomtrf5Yzf3zz9Xo+aLoXsodmaKcWq4dH1HbKtKCBsNQi4yWG5SbhsPDYpDAjtx6V2UvBv1WmTSmzfo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743164411; c=relaxed/simple; bh=UCjH2Ms8cWcrH8DKbIjBq3dQ2+iqiaqyMgj4HCuqX/8=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=DApFKenD3J6hBiCKMJB/vIDQECWWyeeAZ5uJE3paKleiHtQbm+AARMtO1ydaB9pcnUY8pz7paa2aZPqzPoonS9ZzW60rCbnKVeH521DE1mB+xWlfJb0pjyr6oh2upvfHoXlkXPCimDMmLb1kKjOa7EJ+FFrL09tbdZc7gGCuvt0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=csgroup.eu; spf=pass smtp.mailfrom=csgroup.eu; arc=none smtp.client-ip=93.17.236.30 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=csgroup.eu Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=csgroup.eu Received: from localhost (mailhub3.si.c-s.fr [192.168.12.233]) by localhost (Postfix) with ESMTP id 4ZPJhQ0sv0z9vdk; Fri, 28 Mar 2025 12:48:54 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id VHeEn-jhQIqn; Fri, 28 Mar 2025 12:48:54 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4ZPJhP2w1Bz9tjl; Fri, 28 Mar 2025 12:48:53 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 827338B76E; Fri, 28 Mar 2025 12:48:53 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id wUjXM0YDApDW; Fri, 28 Mar 2025 12:48:53 +0100 (CET) Received: from [192.168.235.99] (unknown [192.168.235.99]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 3C80F8B763; Fri, 28 Mar 2025 12:48:53 +0100 (CET) Message-ID: Date: Fri, 28 Mar 2025 12:48:53 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [main-line]Build warnings on PowerPC system To: Madhavan Srinivasan , Venkat Rao Bagalkote , linuxppc-dev , LKML References: <61cf556c-4947-4bd6-af63-892fc0966dad@linux.ibm.com> <8797a1c4-dc58-4a85-bc51-a3d4131e7930@linux.ibm.com> <38653c58-a5c4-496f-9b52-e7bc3e447423@linux.ibm.com> <516febac-b2ba-48a0-83a4-ab259e972541@linux.ibm.com> Content-Language: fr-FR From: Christophe Leroy In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Le 28/03/2025 à 12:14, Madhavan Srinivasan a écrit : > >>>> diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper >>>> index 1db60fe13802..09ceb5a42d81 100755 >>>> --- a/arch/powerpc/boot/wrapper >>>> +++ b/arch/powerpc/boot/wrapper >>>> @@ -235,7 +235,7 @@ fi >>>>   # suppress some warnings in recent ld versions >>>>   nowarn="-z noexecstack" >>>>   if ! ld_is_lld; then >>>> -       if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then >>>> +       if [ "$LD_VERSION" -ge "$(echo 2.35 | ld_version)" ]; then >>>>                  nowarn="$nowarn --no-warn-rwx-segments" >>>>          fi >>>>   fi >>> Above change fixes the issue. No warnings observed. Thank you!! >> >> Take care, this must be a special version of binutils. >> >> With regular 2.36.1 I get following error: >> >> $ /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version >> GNU ld (GNU Binutils) 2.36.1 >> Copyright (C) 2021 Free Software Foundation, Inc. >> This program is free software; you may redistribute it under the terms of >> the GNU General Public License version 3 or (at your option) a later version. >> This program has absolutely no warranty. >> >> $ /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --no-warn-rwx-segments test.o >> /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: unrecognized option '--no-warn-rwx-segments' >> /opt/gcc/gcc-8.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: use the --help option for usage information >> > > Nice catch. Thanks Christophe. > > May be we need to handle this special/specific case with an > additional check > > diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper > index 1db60fe13802..d3779c20e548 100755 > --- a/arch/powerpc/boot/wrapper > +++ b/arch/powerpc/boot/wrapper > @@ -237,6 +237,8 @@ nowarn="-z noexecstack" > if ! ld_is_lld; then > if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then > nowarn="$nowarn --no-warn-rwx-segments" > + elif [ "$LD_VERSION" -eq "235020000" ]; then > + nowarn="$nowarn --no-warn-rwx-segments" > fi > fi > I think it is not the official version of 2.35.2, it is a modified version from a distribution. It doesn't exist in the official 2.35.2: $ git remote -v origin https://sourceware.org/git/binutils-gdb.git (fetch) origin https://sourceware.org/git/binutils-gdb.git (push) $ git grep rwx-segments origin/binutils-2_35-branch [empty] What about doing something like commit 0d362be5b142 ("Makefile: link with -z noexecstack --no-warn-rwx-segments") ? Christophe