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[PATCH] Arm: constrain {,u}int64_aligned_t in public header
- To: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 1 Sep 2023 09:26:33 +0200
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- Cc: Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Volodymyr Babchuk <volodymyr_babchuk@xxxxxxxx>, Bertrand Marquis <bertrand.marquis@xxxxxxx>
- Delivery-date: Fri, 01 Sep 2023 07:26:51 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
This using a GNU extension, it may not be exposed in general, just like
is done on x86. External consumers need to make this type available up
front (just like we expect {,u}int<N>_t to be supplied) - unlike on x86
the type is actually needed outside of tools-only interfaces, because
guest handle definitions use it.
While there also add underscores around "aligned".
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
--- a/xen/include/public/arch-arm.h
+++ b/xen/include/public/arch-arm.h
@@ -152,8 +152,10 @@
#define XEN_HYPERCALL_TAG 0XEA1
-#define int64_aligned_t int64_t __attribute__((aligned(8)))
-#define uint64_aligned_t uint64_t __attribute__((aligned(8)))
+#if defined(__XEN__) || defined(__XEN_TOOLS__)
+#define int64_aligned_t int64_t __attribute__((__aligned__(8)))
+#define uint64_aligned_t uint64_t __attribute__((__aligned__(8)))
+#endif
#ifndef __ASSEMBLY__
#define ___DEFINE_XEN_GUEST_HANDLE(name, type) \
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