From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x244.google.com (mail-pg0-x244.google.com [IPv6:2607:f8b0:400e:c05::244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3yYr8g1vN0zDrJy for ; Sat, 11 Nov 2017 19:45:54 +1100 (AEDT) Received: by mail-pg0-x244.google.com with SMTP id s2so9132609pge.10 for ; Sat, 11 Nov 2017 00:45:54 -0800 (PST) Date: Sat, 11 Nov 2017 19:45:40 +1100 From: Nicholas Piggin To: kbuild test robot Cc: kbuild-all@01.org, linux-kernel@vger.kernel.org, Masahiro Yamada , linuxppc-dev@lists.ozlabs.org Subject: Re: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. Message-ID: <20171111194540.5f96fe93@roar.ozlabs.ibm.com> In-Reply-To: <201711102336.rokM2O1G%fengguang.wu@intel.com> References: <201711102336.rokM2O1G%fengguang.wu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 10 Nov 2017 23:41:49 +0800 kbuild test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 1c9dbd4615fd751e5e0b99807a3c7c8612e28e20 > commit: cb87481ee89dbd6609e227afbf64900fb4e5c930 kbuild: linker script do not match C names unless LD_DEAD_CODE_DATA_ELIMINATION is configured > date: 3 months ago > config: powerpc-fsp2_defconfig (attached as .config) > compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 > reproduce: > wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout cb87481ee89dbd6609e227afbf64900fb4e5c930 > # save the attached .config to linux build tree > make.cross ARCH=powerpc > > All warnings (new ones prefixed by >>): > > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. > >> powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. Okay this is not caused by the above patch, it was just hiding it. This should do the trick I think: -- powerpc/32: Add .data.rel* sections explicitly Match powerpc/64 and include .data.rel* input sections in the .data output section explicitly. This should solve the warning: powerpc-linux-gnu-ld: warning: orphan section `.data.rel.ro' from `arch/powerpc/kernel/head_44x.o' being placed in section `.data.rel.ro'. Reported-by: kbuild test robot Signed-off-by: Nicholas Piggin --- arch/powerpc/kernel/vmlinux.lds.S | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 0494e1566ee2..51e4ec92ade1 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -264,6 +264,7 @@ SECTIONS #ifdef CONFIG_PPC32 .data : AT(ADDR(.data) - LOAD_OFFSET) { DATA_DATA + *(.data.rel*) *(.sdata) *(.sdata2) *(.got.plt) *(.got) -- 2.15.0