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Enhance Clang toolchain with LLD linker support#6946

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waruqi merged 2 commits intoxmake-io:devfrom
star-hengxing:patch-1
Oct 20, 2025
Merged

Enhance Clang toolchain with LLD linker support#6946
waruqi merged 2 commits intoxmake-io:devfrom
star-hengxing:patch-1

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Fix package:on_test when enable lto

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Summary of Changes

Hello @star-hengxing, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the Clang toolchain configuration to properly support the LLD linker when Link-Time Optimization (LTO) is active. This change is crucial for resolving build issues, particularly for package:on_test scenarios, by ensuring the correct linker flags are applied under these specific optimization conditions.

Highlights

  • LLD Linker Support for LTO: Introduced conditional ldflags and shflags to use lld-link when Link-Time Optimization (LTO) is enabled, specifically addressing non-Linux environments.
  • Module Import: Added an import for core.project.project to facilitate policy checks.
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Code Review

This pull request enhances the Clang toolchain to use the LLD linker when Link-Time Optimization (LTO) is enabled on Windows. This is a good improvement. My review includes two points: one suggestion to improve code structure by moving an import statement, and a more critical fix for a logic issue that could cause conflicting linker flags to be applied when cross-compiling.

toolchain:add("shflags", "-fuse-ld=lld-link")
end

if is_host("linux") then
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if is_host("linux") or project.policy("build.optimization.lto") then

@waruqi waruqi added this to the v3.0.5 milestone Oct 20, 2025
@waruqi waruqi merged commit 405221a into xmake-io:dev Oct 20, 2025
22 checks passed
@star-hengxing star-hengxing deleted the patch-1 branch October 20, 2025 10:20
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2 participants