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This patch is a downstream-only variant of this upstream commit:
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commit 45b1e17e9150dbd9ac2d578579063fbfa8e1b327
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Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
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Date: Thu Dec 17 10:03:05 2020 +0000
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aarch64: use PTR_ARG and SIZE_ARG instead of DELOUSE
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DELOUSE was added to asm code to make them compatible with non-LP64
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ABIs, but it is an unfortunate name and the code was not compatible
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with ABIs where pointer and size_t are different. Glibc currently
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only supports the LP64 ABI so these macros are not really needed or
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tested, but for now the name is changed to be more meaningful instead
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of removing them completely.
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Some DELOUSE macros were dropped: clone, strlen and strnlen used it
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unnecessarily.
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The out of tree ILP32 patches are currently not maintained and will
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likely need a rework to rebase them on top of the time64 changes.
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Keeping the DELOUSE macro avoids the need to update all string
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functions. Lack of BTI markers and architecture variants cause many
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conflicts in a full upstream backport.
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diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
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index 5b30709436d3acea..1bcf15d4f18586ba 100644
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--- a/sysdeps/aarch64/sysdep.h
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+++ b/sysdeps/aarch64/sysdep.h
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@@ -32,6 +32,8 @@
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# define PTR_LOG_SIZE 2
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# define DELOUSE(n) mov w##n, w##n
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#endif
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+#define PTR_ARG(n) DELOUSE(n)
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+#define SIZE_ARG(n) DELOUSE(n)
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#define PTR_SIZE (1<
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