linux-kernel - Re: arm-linux-gnueabi-ld: section .rodata VMA overlaps section .bss VMA

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Date:   Sat, 11 Jul 2020 13:30:25 +0100
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     kernel test robot <lkp@...el.com>
Cc:     Kees Cook <keescook@...omium.org>, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: Re: arm-linux-gnueabi-ld: section .rodata VMA overlaps section .bss
 VMA

I doubt anyone is going to fix this; it's an XIP kernel, and it looks
like the .data and .rodata sections are correctly placed as per the
configuration, but for some reason the .text (and sections that follow)
are incorrectly placed in VMA space.  The configuration file says that
the kernel should start at 0x00080000, and there's no way the .text
VMA should be starting at 0x3f0801a0.

Unless one of the XIP using folk can debug this, I doubt there will be
any movement on it.  Especially as it's 5 months old...

What do we do with bugs like this that people won't fix?  Remove XIP
support from the kernel?

On Sat, Jul 11, 2020 at 07:05:04PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   1df0d8960499e58963fd6c8ac75e544f2b417b29
> commit: f87b1c49bc675da30d8e1e8f4b60b800312c7b90 ARM: 8958/1: rename missed uaccess .fixup section
> date:   5 months ago
> config: arm-randconfig-c004-20200711 (attached as .config)
> compiler: arm-linux-gnueabi-gcc (GCC) 9.3.0
> 
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot <lkp@...el.com>
> 
> All errors (new ones prefixed by >>):
> 
>    arm-linux-gnueabi-ld: section .data VMA [0000000040008000,00000000401e9edf] overlaps section .text VMA [000000003f0801a0,0000000040515887]
> >> arm-linux-gnueabi-ld: section .rodata VMA [0000000040516000,00000000409a24ee] overlaps section .bss VMA [0000000040208000,00000000409d80db]
> 
> ---
> 0-DAY CI Kernel Test Service, Intel Corporation
> https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org



-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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