Landing: 640617d9d18e
Project / Subsystem
binutils / binutils/bfd
Date
2026-10-05
Author
Jan Beulich <jbeulich@sourceware.org>
Commit
640617d9d18eb900a8cd9c95da1569aea78b70e8
Source
public_inbox
Perf win
No
Breaking
No
All attributes
- project
- binutils
- subsystem
- binutils/bfd
- patch_id
- —
- commit_hash
- 640617d9d18eb900a8cd9c95da1569aea78b70e8
- source_type
- public_inbox
- headline
- Write alignment of `.tls` into `_tls_used.Characteristics`
- tldr
- Binutils PE/COFF writer now encodes TLS alignment in the Characteristics field.
- author
- Jan Beulich <jbeulich@sourceware.org>
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • binutils
- • bfd
- • windows
- • tls
- • alignment
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-10-05T00:00:00.000Z
This change updates the PE/COFF object file writer in BFD to correctly encode the alignment of thread-local storage (TLS) variables into the Characteristics field of the _tls_used directory. This aligns with modern Windows SDKs (starting Windows 8.1) and compilers like Clang and MSVC, ensuring proper runtime alignment for over-aligned thread-local variables.