[PATCH 0/2] RISC-V: Check for conflicting extensions when the linker merges arch attributes

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Project / Subsystem

binutils / risc-v

Date

2026-07-06

Proposer

"Ethan Y. C. Liang" <ycl669@andestech.com>

Source type

public_inbox

Consensus

Proposed

Sentiment

—/10

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All attributes

project: binutils
subsystem: risc-v
patch_id: —
discussion_id: 20260706114428.3967240-1-ycl669@andestech.com
source_type: public_inbox
title: [PATCH 0/2] RISC-V: Check for conflicting extensions when the linker merges arch attributes
headline: RISC-V: Check for conflicting extensions when linker merges arch attributes
tldr: Ethan Liang proposes a two-part patch series to fix memory leaks and add checks for conflicting RISC-V extensions during linker arch attribute merges.
proposer: "Ethan Y. C. Liang" <ycl669@andestech.com>
consensus: Proposed
outcome: proposed
sentiment_score: —
technical_tradeoffs: []
series_id: binutils:risc-v: check for conflicting extensions when the linker merges arch attributes
series_role: cover
series_parts: • {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/akxe1X8wwdItOqQj@atctlc04"}
• {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/CAOvetVBXAbVe47w3wjOe7N8OGw=8yOzPYyDN+uyLKVnNPe5wFw@mail.gmail.com"}
• {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/CAOvetVD7==e2hm3CwR31yRKWTjTMCWDAu8cxKz08g8G2pAMEfw@mail.gmail.com"}
• {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/CAOvetVBT=ZA_8Zg4cd1k1X_TDqzgvEL5uFrJnOD2NKT3r8Z0YQ@mail.gmail.com"}
• {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/6ec74d05-50c8-4427-9fcd-e26c1cedf246@iscas.ac.cn"}
• {"title":"RISC-V: Check for conflicting extensions when the linker merges arch attributes","url":"https://inbox.sourceware.org/binutils/20260706114428.3967240-3-ycl669@andestech.com"}
tags: • risc-v
• linker
• architecture
• memory leak
• conflict detection
url: https://inbox.sourceware.org/binutils/20260706114428.3967240-1-ycl669@andestech.com
bugzilla_url: —
date: 2026-07-06T00:00:00.000Z

[PATCH 0/2] RISC-V: Check for conflicting extensions when the linker merges arch attributes

Ethan Y. C. Liang introduces a two-patch series to address issues in the RISC-V linker’s handling of architecture attributes. The first patch cleans up memory leaks in error paths of riscv_merge_arch_attr_info. The second patch implements a crucial check: after merging input architecture strings, it re-evaluates the implicit extensions and verifies for conflicts, preventing silent failures like merging ‘rv32ic’ with ‘rv32id_zcmp’ which implies ‘zcd’ that conflicts with ‘zcmp’. The series also includes new test cases.