Files
uv/crates
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
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Crates

uv-bench

Functionality for benchmarking uv.

uv-cache-key

Generic functionality for caching paths, URLs, and other resources across platforms.

uv-distribution-filename

Parse built distribution (wheel) and source distribution (sdist) filenames to extract structured metadata.

uv-distribution-types

Abstractions for representing built distributions (wheels) and source distributions (sdists), and the sources from which they can be downloaded.

uv-install-wheel-rs

Install built distributions (wheels) into a virtual environment.

uv-once-map

A waitmap-like concurrent hash map for executing tasks exactly once.

uv-pep440-rs

Utilities for interacting with Python version numbers and specifiers.

uv-pep508-rs

Utilities for parsing and evaluating dependency specifiers, previously known as PEP 508.

uv-platform-tags

Functionality for parsing and inferring Python platform tags as per PEP 425.

uv-cli

Command-line interface for the uv package manager.

uv-build-frontend

A PEP 517-compatible build frontend for uv.

uv-cache

Functionality for caching Python packages and associated metadata.

uv-client

Client for interacting with PyPI-compatible HTTP APIs.

uv-dev

Development utilities for uv.

uv-dispatch

A centralized struct for resolving and building source distributions in isolated environments. Implements the traits defined in uv-types.

uv-distribution

Client for interacting with built distributions (wheels) and source distributions (sdists). Capable of fetching metadata, distribution contents, etc.

uv-extract

Utilities for extracting files from archives.

uv-fs

Utilities for interacting with the filesystem.

uv-git

Functionality for interacting with Git repositories.

uv-installer

Functionality for installing Python packages into a virtual environment.

uv-python

Functionality for detecting and leveraging the current Python interpreter.

uv-normalize

Normalize package and extra names as per Python specifications.

uv-requirements

Utilities for reading package requirements from pyproject.toml and requirements.txt files.

uv-resolver

Functionality for resolving Python packages and their dependencies.

uv-shell

Utilities for detecting and manipulating shell environments.

uv-types

Shared traits for uv, to avoid circular dependencies.

uv-pypi-types

General-purpose type definitions for types used in PyPI-compatible APIs.

uv-virtualenv

A venv replacement to create virtual environments in Rust.

uv-warnings

User-facing warnings for uv.

uv-workspace

Workspace abstractions for uv.

uv-requirements-txt

Functionality for parsing requirements.txt files.