Re: [PATCH v2 2/8] lib: collect library files in an archive

[Julien Grall <julien@xxxxxxx>]

Hi Jan,

On 23/10/2020 11:17, Jan Beulich wrote:
> In order to (subsequently) drop odd things like CONFIG_NEEDS_LIST_SORT
> just to avoid bloating binaries when only some arch-es and/or
> configurations need generic library routines, combine objects under lib/
> into an archive, which the linker then can pick the necessary objects
> out of.
>
> Note that we can't use thin archives just yet, until we've raised the
> minimum required binutils version suitably.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---
>   xen/Rules.mk          | 33 +++++++++++++++++++++++++++------
>   xen/arch/arm/Makefile |  6 +++---
>   xen/arch/x86/Makefile |  8 ++++----
>   xen/lib/Makefile      |  3 ++-
>   4 files changed, 36 insertions(+), 14 deletions(-)
I can't build Xen on Arm after this patch:

  AR      lib.a
aarch64-linux-gnu-ld    -EL  -r -o built_in.o
aarch64-linux-gnu-ld: no input files
/home/ANT.AMAZON.COM/jgrall/works/oss/xen/xen/Rules.mk:154: recipe for 
target 'built_in.o' failed
Cheers,

--
Julien Grall