[OE-core] [PATCH] kernel-arch: Force BFD kernel when using gcc for linking

[Burton, Ross]

On 19 August 2015 at 20:59, Nathan Lynch <Nathan_Lynch at mentor.com> wrote:

> On 08/19/2015 12:44 PM, Khem Raj wrote:
> > We redefine LD to point to ld.bfd when building kernel, which works in
> > most cases since kbuild system calls out for bare LD most of the time,
> > however some of newer kernels e.g. 4.1+ have some code added which can
> > call gcc directly to do the linking job e.g. arm vdso code
> >
> > This causes build failures when we have configured the default cross
> > toolchain to use gold linker as default. Errors like
> >
> > BFD: arch/arm/vdso/vdso.so: Not enough room for program headers, try
> > linking with -N
> > | arm-angstrom-linux-gnueabi-objcopy:arch/arm/vdso/vdso.so[.hash]: Bad
> > value
> >
> > start happening.
> >
> > With this patch we force gcc to choose bfd linker as well
>
>
> This is fixed upstream as of:
>
> commit d2b30cd4b7223a96e606dfc8120626f66d81e091
> Author: Nathan Lynch <nathan_lynch at mentor.com>
> Date:   Wed Jun 3 00:41:15 2015 +0100
>
>     ARM: 8384/1: VDSO: force use of BFD linker
>
> which should make it to 4.1-stable soon.


 CC'ing Bruce.

I'll stage the fix from Khem in my master-unde-test branch.  Bruce: if you
end up merging this fix into the oe-core kernels, please remind me to
revert Khem's patch. :)

Ross
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