linux-kernel - Re: [PATCH v2] kbuild: Fail if gold linker is detected

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Message-ID: <alpine.DEB.2.21.1907201133000.1782@nanos.tec.linutronix.de>
Date:   Sat, 20 Jul 2019 11:34:27 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Mike Lothian <mike@...eburn.co.uk>
cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Nathan Chancellor <natechancellor@...il.com>,
        LKML <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        X86 ML <x86@...nel.org>, "H.J. Lu" <hjl.tools@...il.com>,
        Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        "Theodore Y. Ts'o" <tytso@....edu>, linux-arch@...r.kernel.org
Subject: Re: [PATCH v2] kbuild: Fail if gold linker is detected

On Sat, 20 Jul 2019, Mike Lothian wrote:
> On Wed, 17 Jul 2019 at 08:57, Thomas Gleixner <tglx@...utronix.de> wrote:
> I've done a bit more digging, I had a second machine that was building
> Linus's tree just fine with ld.gold
> 
> I tried forcing ld.bfd on the problem machine and got this:
> 
> ld.bfd: arch/x86/boot/compressed/head_64.o: warning: relocation in
> read-only section `.head.text'
> ld.bfd: warning: creating a DT_TEXTREL in object
> 
> I had a look at the differences in the kernel configs and noticed this:
> 
> CONFIG_RANDOMIZE_BASE=y
> CONFIG_X86_NEED_RELOCS=y
> CONFIG_PHYSICAL_ALIGN=0x1000000
> CONFIG_DYNAMIC_MEMORY_LAYOUT=y
> CONFIG_RANDOMIZE_MEMORY=y
> CONFIG_RANDOMIZE_MEMORY_PHYSICAL_PADDING=0x0
> 
> Unsetting CONFIG_RANDOMIZE_BASE=y gets things working for me with ld.gold again

Can you please provide the full config? I have the above set here and it
builds just fine.

> In light of this - can we drop this patch?

No. I'm not going to deal with unsupported tools.

Thanks,

	tglx