Landing: 9bb30cff1a25

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Project / Subsystem

gcc / libstdc++

Date

2026-04-17

Author

Jakub Jelinek

Commit

9bb30cff1a251f037f420e82ff23b8dcc16e1d72

Source

github

Impact

6/10

Perf win

Breaking

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All attributes

project: gcc
subsystem: libstdc++
patch_id: —
commit_hash: 9bb30cff1a251f037f420e82ff23b8dcc16e1d72
source_type: github
headline: Libstdc++: Update baseline symbols for various Linux architectures.
tldr: Updates baseline symbols for several Linux architectures in libstdc++, mainly based on Fedora package builds and analysis of GCC 15 changes.
why_it_matters: Ensuring up-to-date baseline symbols is crucial for maintaining ABI compatibility and preventing unexpected behavior when linking against libstdc++.
author: Jakub Jelinek
impact_score: 6
impact_rationale: Updates to baseline symbols affect ABI compatibility, with potential impact on applications using libstdc++.
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • libstdc++
• ABI
• baseline symbols
• Linux
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/9bb30cff1a251f037f420e82ff23b8dcc16e1d72
date: 2026-04-17T00:00:00.000Z

This commit updates the baseline_symbols.txt files for several Linux architectures, including ia64, m68k, powerpc64, sparc64, and x86_64. The updates are largely based on Fedora package builds and informed by the change analysis performed in previous patches for GCC 15. Some manual adjustments were made for powerpc64.