Landing: 4e760f7662dc

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Project / Subsystem

gcc / gcc/toplev.cc

Date

2026-04-28

Author

Tomas Härdin

Commit

4e760f7662dc6d0aa7dc8f6f733c0f5c15124811

Source

github

Perf win

Breaking

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All attributes

project: gcc
subsystem: gcc/toplev.cc
patch_id: —
commit_hash: 4e760f7662dc6d0aa7dc8f6f733c0f5c15124811
source_type: github
headline: gcc/toplev.cc: Output mangled function names with -fstack-usage
tldr: The -fstack-usage option now outputs mangled function names.
author: Tomas Härdin
outcome: committed
performance_win: false
breaking_change: false
series_id: —
series_parts: []
tags: • gcc
• stack usage
• mangling
• debugging
discussion_id_link: —
bugzilla_pr: —
url: https://github.com/gcc-mirror/gcc/commit/4e760f7662dc6d0aa7dc8f6f733c0f5c15124811
date: 2026-04-28T00:00:00.000Z

When using the -fstack-usage option in GCC, this commit modifies the output to include mangled function names instead of plain names. This provides more precise identification of functions, especially in the presence of overloading or name collisions. This makes the output more useful for automated stack checking tools like avstack.pl, which rely on unique function identifiers.