[llvm-dev] BE8 elf format on gold

[Doug Kwan (關振德) via llvm-dev]

While most parts of gold are written to support both big and little endian
targets, the arm32 backend has not been tested on anything that is not
little-endian.  Pure big-endian config might work out of the box but I have
never tried it myself.

If I understand correctly, --be8 tells the linker to emit output with
little-endian instruction but big-endian data.  gold currently does not
support this.  We need to add code to emit branch stubs in correct
endianness and also byte swap the input instructions.

-Doug

On Wed, May 18, 2016 at 10:35 AM, Umesh Kalappa <umesh.kalappa0 at gmail.com>
wrote:

> Thank you Tim and Doug you said that BE8 is not supported and i'm bit
> confused now :(
>
> ~Umesh
>
> On Wed, May 18, 2016 at 7:16 PM, Tim Northover <t.p.northover at gmail.com>
> wrote:
> > On 18 May 2016 at 01:27, Umesh Kalappa via llvm-dev
> > <llvm-dev at lists.llvm.org> wrote:
> >> Do be8 format is very mandatory for  armv7(big endian) ? Or we can
> >> proceed without –be8 option    ??
> >
> > You should be fine. It looks like gold does support big-endian on ARM,
> > and the default is almost certainly BE8 (BE32 is widely regarded as a
> > mistake best forgotten).
> >
> > Cheers.
> >
> > Tim.
>
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