Landing: a2f3fb27c419

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Project / Subsystem

gcc / gccrs

Date

2026-07-10

Author

Enes Cevik

Commit

a2f3fb27c419d8a97b9b4a3dcf7c35e248182684

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gccrs
patch_id: —
commit_hash: a2f3fb27c419d8a97b9b4a3dcf7c35e248182684
source_type: github
headline: GCC Rust frontend registers `needs_allocator` attribute stub
tldr: GCC Rust frontend registers `needs_allocator` attribute as a stub, emitting a warning.
author: Enes Cevik
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gccrs
• rust
• attribute
• compiler
• alloc crate
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/a2f3fb27c419d8a97b9b4a3dcf7c35e248182684
date: 2026-07-10T00:00:00.000Z

GCC’s Rust frontend has registered the needs_allocator attribute as a stub. This attribute is required for compiling the alloc crate, but its full implementation is deferred due to dependencies on global_allocator infrastructure and the core::alloc::GlobalAlloc trait, which are not yet fully supported in GCC Rust. The stub emits a compiler warning when the attribute is encountered.