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Re: [PATCH v3 2/6] Arm: split xen-syms linking rule
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Tue, 22 Sep 2026 11:56:41 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, Roger Pau Monné <roger@xxxxxxxxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>, Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>
- Delivery-date: Tue, 22 Sep 2026 09:56:52 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 08.09.2026 14:28, Jan Beulich wrote:
> Doing so, besides (hopefully) adding clarity (not the least by way of
> [re-]using pattern rules where possible), also avoids explicit recursive
> $(MAKE) invocations.
>
> By re-using the generic rules introduced when the respective x86 rule was
> split,
> - the .map file now isn't created after the final binary anymore,
> - --strip-debug is passed to $(LD) during early linking passes (for
> consistency the option is also explicitly added to the optional linking
> pass rule),
> - CONFIG_{SUPPRESS_DUPLICATE_SYMBOL_WARNINGS,ENFORCE_UNIQUE_SYMBOLS} are
> now properly respected.
> Orphan section checking, otoh, is getting suppressed for now, until the
> about a dozen warnings which would result have been taken care of.
Similarly, for randconfig, I had to suppress ENFORCE_UNIQUE_SYMBOLS=y for
the time being, with the incremental patch below. I'm about to submit a
patch to undo that (by first fixing the collisions).
As per
https://gitlab.com/xen-project/hardware/xen-staging/-/pipelines/2870284545
the issues were:
Arm64:
Duplicate symbol 'head.o#fail' (a0000200544 != a0000200178)
Arm32:
Duplicate symbol 'head.o#fail' (200178 != 200650)
Jan
--- a/xen/arch/arm/Makefile
+++ b/xen/arch/arm/Makefile
@@ -91,6 +91,9 @@ include scripts/Makefile.link
# Suppress orphan section checking for the time being.
orphan-handling-y :=
+# Downgrade duplicate symbol errors to warnings for the time being.
+syms-warn-dup-$(CONFIG_ENFORCE_UNIQUE_SYMBOLS) := --warn-dup
+
.PHONY: include
include:
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