Re: [PATCH] vmlinux.lds.h: CFI: Reduce alignment of jump-table to function alignment

[Will Deacon]

On Thu, 22 Sep 2022 22:57:15 +0100, Will Deacon wrote:
> Due to undocumented, hysterical raisins on x86, the CFI jump-table
> sections in .text are needlessly aligned to PMD_SIZE in the vmlinux
> linker script. When compiling a CFI-enabled arm64 kernel with a 64KiB
> page-size, a PMD maps 512MiB of virtual memory and so the .text section
> increases to a whopping 940MiB and blows the final Image up to 960MiB.
> Others report a link failure.
> 
> [...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] vmlinux.lds.h: CFI: Reduce alignment of jump-table to function alignment
      https://git.kernel.org/arm64/c/13b056696291

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
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