[PATCH] RISC-V: define elf_backend_dtrel_excludes_plt

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Project / Subsystem

binutils / risc-v

Date

2026-07-24

Proposer

wangjue <juewang@linux.alibaba.com>

Source type

public_inbox

Consensus

Proposed

Sentiment

—/10

Technical tradeoffs

• ABI Compliance: Ensuring RISC-V's ELF object file generation adheres to expected behavior for dynamic linking and toolchain compatibility.
• Tool Compatibility: Fixing issues that cause incorrect behavior in downstream tools that parse ELF structures independently.
• Code Locality: Indirectly improving code locality by ensuring proper symbol resolution and section handling.

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All attributes

project: binutils
subsystem: risc-v
patch_id: —
discussion_id: 20260724012642.21997-1-juewang@linux.alibaba.com
source_type: public_inbox
title: [PATCH] RISC-V: define elf_backend_dtrel_excludes_plt
headline: RISC-V: define elf_backend_dtrel_excludes_plt
tldr: RISC-V binutils patch defines elf_backend_dtrel_excludes_plt to correctly handle DT_RELASZ, preventing double processing by tools like llvm-bolt.
proposer: wangjue <juewang@linux.alibaba.com>
consensus: Proposed
outcome: proposed
sentiment_score: —
technical_tradeoffs: • ABI Compliance: Ensuring RISC-V's ELF object file generation adheres to expected behavior for dynamic linking and toolchain compatibility.
• Tool Compatibility: Fixing issues that cause incorrect behavior in downstream tools that parse ELF structures independently.
• Code Locality: Indirectly improving code locality by ensuring proper symbol resolution and section handling.
series_id: —
series_role: standalone
series_parts: []
tags: • binutils
• RISC-V
• ELF
• linker
• relocation
url: https://inbox.sourceware.org/binutils/20260724012642.21997-1-juewang@linux.alibaba.com
bugzilla_url: —
date: 2026-07-24T00:00:00.000Z

[PATCH] RISC-V: define elf_backend_dtrel_excludes_plt

This patch defines elf_backend_dtrel_excludes_plt for the RISC-V port in binutils, correcting how DT_RELASZ is calculated. Previously, it incorrectly included .rela.plt sections, causing aliasing issues when .rela.dyn was empty. This led to tools like llvm-bolt processing sections twice. Defining the macro ensures DT_RELASZ excludes .rela.plt, aligning with other targets and resolving the aliasing problem.