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Update cmake_importfiles.lua#6890

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waruqi merged 7 commits intoxmake-io:devfrom
luadebug:fix-sizeof-wasm
Oct 5, 2025
Merged

Update cmake_importfiles.lua#6890
waruqi merged 7 commits intoxmake-io:devfrom
luadebug:fix-sizeof-wasm

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@luadebug
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@luadebug luadebug commented Oct 4, 2025

Despite we fixed issues with cross auto-generated CMakeConfigs, we have acquired new issue with wasm platform.
#6880

xmake-io/xmake-repo#8312 (imgui)

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Summary of Changes

Hello @luadebug, 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 refines the process of generating CMake import files by implementing platform-specific logic for determining pointer byte sizes. The primary impact is on WebAssembly (WASM) targets, where the system now correctly identifies whether the pointer size should be 4 or 8 bytes based on the target architecture, leading to more accurate and compatible build configurations.

Highlights

  • WASM Platform Pointer Size Detection: Introduced specific logic within the _get_builtinvars function to accurately determine the TARGET_PTRBYTES for WebAssembly (WASM) platforms. This ensures correct pointer size reporting based on the target architecture.
  • Improved CMake Import File Generation: The change enhances the cmake_importfiles.lua module to generate more precise CMake configuration files, particularly for projects targeting WASM, by correctly identifying the pointer byte size.
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Code Review

This pull request updates how the pointer size is determined for the wasm platform when generating CMake import files. Instead of relying on target:check_sizeof, it now uses a hardcoded value based on the architecture. My review includes a suggestion to simplify the architecture check to improve code readability and maintainability.

-- get the builtin variables
function _get_builtinvars(target, installdir)
local target_ptrbytes
if target:is_plat("wasm") then
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only for wasm? only wasm32/wasm64 archs exist.

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I expected target_ptrbytes = target:check_sizeof("void*") to work for wasm as well, but it looks like did not return nor 4 nor 8 for wasm build, so I placed problematic platforms here.

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or we should fix check_sizeof to support wasm build

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luadebug commented Oct 4, 2025

/gemini review

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Code Review

This pull request addresses an issue with generating CMake configuration files for the wasm platform by providing a specific implementation for determining the pointer size, which avoids calling target:check_sizeof. It also includes an optimization for native builds. The changes are a good improvement, but I have one suggestion to make the logic for the wasm platform more robust and future-proof.

@luadebug luadebug requested a review from waruqi October 4, 2025 22:54
@waruqi waruqi merged commit 1b65f0f into xmake-io:dev Oct 5, 2025
21 of 22 checks passed
@waruqi waruqi added this to the v3.0.4 milestone Oct 5, 2025
@luadebug luadebug deleted the fix-sizeof-wasm branch October 5, 2025 12:29
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2 participants