[PATCH 06/11] alpha: reject relocations that cannot refer to an IFUNC

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Project / Subsystem

binutils / alpha

Date

2026-09-01

Proposer

Matt Turner <mattst88@gmail.com>

Source type

public_inbox

Consensus

Proposed

Sentiment

—/10

Technical tradeoffs

• Improves robustness by catching incorrect relocation usage.
• May require users to adjust their code or build process if these invalid relocations are being generated.

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All attributes

project: binutils
subsystem: alpha
patch_id: —
discussion_id: 20260901023318.3503991-7-mattst88@gmail.com
source_type: public_inbox
title: [PATCH 06/11] alpha: reject relocations that cannot refer to an IFUNC
headline: alpha: reject relocations that cannot refer to an IFUNC
tldr: Reject invalid relocation types that incorrectly attempt to reference an IFUNC directly.
proposer: Matt Turner <mattst88@gmail.com>
consensus: Proposed
outcome: proposed
sentiment_score: —
technical_tradeoffs: • Improves robustness by catching incorrect relocation usage.
• May require users to adjust their code or build process if these invalid relocations are being generated.
series_id: binutils:alpha: reject relocations that cannot refer to an ifunc
series_role: reply
series_parts: []
tags: • alpha
• linker
• ifunc
• relocation
• error handling
url: https://inbox.sourceware.org/binutils/20260901023318.3503991-7-mattst88@gmail.com
bugzilla_url: —
date: 2026-09-01T00:00:00.000Z

[PATCH 06/11] alpha: reject relocations that cannot refer to an IFUNC

This patch series introduces checks in the alpha ELF linker to reject specific relocation types that cannot correctly reference an IFUNC. These include R_ALPHA_BRADDR, R_ALPHA_BRSGP, gp-relative relocations, and R_ALPHA_REFLONG, which name the symbol directly or have insufficient field size. By reporting these errors, the linker ensures that all references to IFUNCs go through the appropriate GOT entry or data word that utilizes R_ALPHA_IRELATIVE.