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Enable the Cortex-A53 erratum 843419 workaround for AArch64 Linux glibc - #1385

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zanieb merged 2 commits into
astral-sh:mainfrom
zaniebot:fix-cortex-a53-843419
Oct 22, 2026
Merged

zanieb merged 2 commits into
astral-sh:mainfrom
zaniebot:fix-cortex-a53-843419

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AArch64 Linux glibc builds omit the linker workaround for Cortex-A53 erratum 843419 because Clang does not enable it by default on this target. The erratum can cause loads or stores to access incorrect addresses on affected CPUs. Add -Wl,--fix-cortex-a53-843419 to the target linker flags so the linker can rewrite recognized instruction sequences in the resulting binaries.

@zanieb
zanieb marked this pull request as ready for review October 22, 2026 20:04
@zanieb
zanieb merged commit 04c1e98 into astral-sh:main Oct 22, 2026
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3 participants