Landing: 1755c3815690
Project / Subsystem
gcc / except
Date
2026-09-25
Author
Andrea Pinski
Commit
1755c3815690bddfe0450b692c58ae98daec1b9c
Source
github
Perf win
No
Breaking
No
All attributes
- project
- gcc
- subsystem
- except
- patch_id
- —
- commit_hash
- 1755c3815690bddfe0450b692c58ae98daec1b9c
- source_type
- github
- headline
- except: Use chain_next on eh_region_d for GTY
- tldr
- Adds linked list pointers to exception handling structures to prevent stack overflows during garbage collection.
- author
- Andrea Pinski
- outcome
- committed
- performance_win
- false
- breaking_change
- false
- series_id
- —
- series_parts
- []
- tags
-
- • exception handling
- • garbage collection
- • stability
- discussion_id_link
- —
- bugzilla_pr
- —
- date
- 2026-09-25T00:00:00.000Z
This commit introduces chain_next pointers to the eh_region_d structure within GCC’s exception handling. This change addresses potential stack overflows during garbage collection that can occur with a large number of local variables requiring cleanups, similar to a previous fix for eh_landing_pad_d.