Landing: 20af0e529a79

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Project / Subsystem

gcc / libstdc++

Date

2026-04-17

Author

Jonathan Wakely

Commit

20af0e529a79186f7600c87554aeee3231f80bee

Source

github

Impact

6/10

Perf win

Breaking

View on GitHub →

All attributes

project: gcc
subsystem: libstdc++
patch_id: —
commit_hash: 20af0e529a79186f7600c87554aeee3231f80bee
source_type: github
headline: Libstdc++: Update Solaris baselines for GCC 16.1.
tldr: Updates the libstdc++ baseline symbol lists for Solaris targets in preparation for the GCC 16.1 release.
why_it_matters: Keeping baseline symbols up-to-date ensures ABI compatibility on Solaris and prevents unexpected runtime issues.
author: Jonathan Wakely
impact_score: 6
impact_rationale: ABI changes can have a large impact, so updating the baseline is important. However, the impact is limited to Solaris systems.
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • libstdc++
• Solaris
• ABI
• baseline symbols
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/20af0e529a79186f7600c87554aeee3231f80bee
date: 2026-04-17T00:00:00.000Z

This commit regenerates the baseline symbol lists for libstdc++ on Solaris for GCC 16.1. This includes updates for both i386 and SPARC architectures, as well as their respective 64-bit variants. These baselines are essential for maintaining ABI compatibility between different versions of the library.