[PATCH] rust: arm64: set uwtable llvm module flag for CONFIG_UNWIND_TABLES

[Miguel Ojeda]

On Fri, May 29, 2026 at 8:32 AM Alice Ryhl <aliceryhl at google.com> wrote:
>
> Hrm, is there a way to perform the version check in the Makefile, or do
> I need a Kconfig for whether the fix is needed?

We shouldn't need a Kconfig -- we can do e.g.

  KBUILD_RUSTFLAGS += $(if $(call
rustc-min-version,109800),,-Zllvm_module_flag=uwtable:u32:2:max)

I tested with 1.96 and nightly -- I can apply it to the Rust tree if
arm64 prefers.

I hope that helps!

Cheers,
Miguel