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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 20 Jul 2019 11:13:27 +0100
From:   Mike Lothian <mike@...eburn.co.uk>
To:     Thomas Gleixner <tglx@...utronix.de>
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 at 10:34, Thomas Gleixner <tglx@...utronix.de> wrote:
>
> 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

Hi

Here is my config

https://github.com/FireBurn/KernelStuff/blob/9b7e96581598d50b266f9df258e7de764949147a/dot_config_tip

Regards

Mike