Re: [Xen-devel] [PATCH] xen/x86: fix linker script to work with lld

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 10.07.18 at 15:49, <roger.pau@xxxxxxxxxx> wrote:
> On Tue, Jul 10, 2018 at 05:47:19AM -0600, Jan Beulich wrote:
>> >>> On 10.07.18 at 13:00, <daniel.kiper@xxxxxxxxxx> wrote:
>> > On Mon, Jul 09, 2018 at 06:45:16PM +0200, Roger Pau Monné wrote:
>> >> Sorry for asking so many questions, but I would like to try to avoid
>> >> the DEFINED conditional in the linker script if possible.
>> > 
>> > If you wish to do that then put dummy efi symbol into 
>> > xen/arch/x86/efi/stub.c.
>> 
>> I think I've clearly objected to that before - I simply see no need for
>> wasting the space in an EFI-incapable binary.
> 
> But such waste is also added regardless of whether you define the
> symbol it in the linker script or in a C file?

How that? There's no space associated with the symbol when defined
this way. From the perspective of the binary, the space lives past the
end of the image, but since the symbol is never accessed (or else code
is broken somewhere) in the non-EFI case, this is okay.

Jan


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