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Zanie Blue 8998568ef4 Detect hard-float support on aarch64 kernels running armv7 userspace (#18530 )

Pulled out of https://github.com/astral-sh/uv/pull/18517

I don't have aarch64 hardware available locally, but Claude posited: 

> When an armv7 binary runs on an aarch64 kernel (e.g., armv7l
containers on aarch64 hosts, or 32-bit Raspberry Pi OS on 64-bit
hardware), /proc/cpuinfo reports aarch64-style feature flags instead of
armv7 flags. The existing check for "vfp" fails because aarch64 uses
"fp" instead.
> 
> Add detection of the aarch64 "fp" feature flag (mandatory on all
aarch64 CPUs) as a discrete token, indicating hardware floating-point
support. This ensures uv selects the gnueabihf (hard-float) Python
variant instead of the gnueabi (soft-float) variant.

I reproduced this in https://github.com/astral-sh/uv/pull/18532

Under QEMU on aarch64 macOS, both the `vfp` and `fp` feature flags are
set.

Closes #18509

2026-03-18 07:52:31 -05:00

src

Detect hard-float support on aarch64 kernels running armv7 userspace (#18530 )

2026-03-18 07:52:31 -05:00

Cargo.toml

Bump version to 0.10.11 (#18521 )

2026-03-16 19:32:39 -04:00

README.md

Bump version to 0.10.11 (#18521 )

2026-03-16 19:32:39 -04:00

README.md

uv-platform

This crate is an internal component of uv. The Rust API exposed here is unstable and will have frequent breaking changes.

This version (0.0.31) is a component of uv 0.10.11. The source can be found here.

See uv's crate versioning policy for details on versioning.