Landing: d28e5377395b

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Project / Subsystem

gcc / ada

Date

2026-09-22

Author

Andrew Teylu

Commit

d28e5377395b71d2d21e77c65fe9d54c6cba91a6

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: ada
patch_id: —
commit_hash: d28e5377395b71d2d21e77c65fe9d54c6cba91a6
source_type: github
headline: Ada: Close DWARF 5 line-string stream
tldr: Fixes a resource leak by closing the DWARF 5 line-string stream when an object file is closed.
author: Andrew Teylu
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • ada
• dwarf
• debugging
• resource leak
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/d28e5377395b71d2d21e77c65fe9d54c6cba91a6
date: 2026-09-22T00:00:00.000Z

The Ada compiler’s DWARF 5 support, when enabled, creates a mapped stream for the .debug_line_str section. The Close procedure for DWARF contexts was not properly closing this stream, leading to leaked memory allocations. This commit modifies Close to ensure the line-string stream is properly closed before the object file is finalized, preventing resource leaks.