Re: [Qemu-devel] [ARM/FDPIC 1/4] linux-user: ARM-FDPIC: Add configure option to support loading of FDPIC binaries

[Peter Maydell]

On 16 April 2018 at 08:57, Christophe Lyon <address@hidden> wrote:
> On 13/04/2018 17:04, Peter Maydell wrote:
>> I think we should just have support for these binaries enabled
>> always. Otherwise it will bitrot because nobody compiles it.
>>
> We are relying on a pre-existing CONFIG_USE_FDPIC, which is currently
> never defined. This was introduced by commit 1af02e83 back in 2011,
> and indeed if you try to build QEMU with CONFIG_USE_FDPIC, the build fails
> because elf_is_fdpic() is not defined.

This looks like an excellent demonstration of why we shouldn't
hide this feature behind a defaults-to-off #define :-)

> Do you suggest removing CONFIG_USE_FDPIC?

Yes. Given how old the existing disabled FDPIC code is, I would also
suggest you carefully review any of it that you're using...

thanks
-- PMM