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Re: [PATCH v4 2/2] xen: Populate xen.lds.h and make use of its macros
- To: Michal Orzel <michal.orzel@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 5 Apr 2022 11:29:14 +0200
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- Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Tue, 05 Apr 2022 09:29:30 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 05.04.2022 11:16, Michal Orzel wrote:
> Populate header file xen.lds.h with the first portion of macros storing
> constructs common to x86 and arm linker scripts. Replace the original
> constructs with these helpers.
>
> No functional improvements to x86 linker script.
>
> Making use of common macros improves arm linker script with:
> - explicit list of debug sections that otherwise are seen as "orphans"
> by the linker. This will allow to fix issues after enabling linker
> option --orphan-handling one day,
> - extended list of discarded section to include: .discard, destructors
> related sections, .fini_array which can reference .text.exit,
> - sections not related to debugging that are placed by ld.lld. Even
> though we do not support linking with LLD on Arm, these sections do
> not cause problem to GNU ld.
>
> Please note that this patch does not aim to perform the full sync up
> between the linker scripts. It creates a base for further work.
>
> Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
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