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Initial implementation of msvc-go-wine

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A single-binary Go tool for cross compiling with the real MSVC toolchain
on Linux via Wine. Behaves as cl/link/lib/rc/midl/mt/dumpbin/msbuild/
nmake/ml/ml64/armasm/armasm64/cmd/findstr depending on the name it's
invoked as, plus download/install/env/version management subcommands.

- download: fetches the MSVC/WinSDK installer manifest, resolves package
  selection and dependencies, downloads and verifies payloads, unpacks
  VSIX/MSI packages, and applies a handful of compatibility patches so
  VsDevCmd.bat and MSBuild's SDK detection work without a Windows
  Registry (which doesn't exist under Wine).
- install: locates the installed toolchain/SDK versions, normalizes
  header/library name casing, lays out per-architecture tool symlinks
  with an env.json config each, and compiles a small native launcher
  (toolrelay.exe) that lets mt.exe's CMake-compatibility exit code
  survive Wine's own exit-code truncation.
- The wrapper runtime rewrites absolute unix paths in tool arguments into
  Wine's z:\... form, runs the real .exe under wine, and rewrites the
  tool's output back to plain unix paths.

Verified end-to-end against a real MSVC/WinSDK download: cl, link, mt and
the resulting hello.exe all work under Wine, including through the
toolrelay.exe relay path and with paths containing non-ASCII characters.

Offline unit tests cover the wrapper's path-rewrite/output-filter logic,
install-time header lowercasing, and download package-selection/
dependency-resolution.
This commit is contained in:
Cheviiot
2026-07-25 00:57:41 +10:00
commit 6464da7847
41 changed files with 4207 additions and 0 deletions
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assets/patches/MSBuild/Microsoft/VC/v180/Microsoft.Cpp.WindowsSDK.props.patch
+20
View File
@@ -0,0 +1,20 @@
msvc-go-wine: let MSBuild find the Windows SDK without the registry.
GetLatestSDKTargetPlatformVersion normally resolves the SDK via the
registry, which has nothing to find under Wine. Pass it an extra list of
roots (populated by msvc-go-wine.props, see the ImportBefore directory next
to this file) so it can also look directly under the VS install root.
diff --git a/MSBuild/Microsoft/VC/v180/Microsoft.Cpp.WindowsSDK.props b/MSBuild/Microsoft/VC/v180/Microsoft.Cpp.WindowsSDK.props
index 5003a04..2a785a4 100644
--- a/MSBuild/Microsoft/VC/v180/Microsoft.Cpp.WindowsSDK.props
+++ b/MSBuild/Microsoft/VC/v180/Microsoft.Cpp.WindowsSDK.props
@@ -110,7 +110,7 @@ Copyright (C) Microsoft Corporation. All rights reserved.
<SDKVersion Condition="'$(SDKVersion)' == ''">10.0</SDKVersion>
<SDKDisplayName Condition="'$(SDKDisplayName)' == ''">Windows 10</SDKDisplayName>
- <_LatestWindowsTargetPlatformVersion>$([Microsoft.Build.Utilities.ToolLocationHelper]::GetLatestSDKTargetPlatformVersion($(SDKIdentifier), $(SDKVersion)))</_LatestWindowsTargetPlatformVersion>
+ <_LatestWindowsTargetPlatformVersion>$([Microsoft.Build.Utilities.ToolLocationHelper]::GetLatestSDKTargetPlatformVersion($(SDKIdentifier), $(SDKVersion), $(MsvcGoWine_ExtraSdkRoots.Split(';'))))</_LatestWindowsTargetPlatformVersion>
<WindowsTargetPlatformVersion Condition="'$(WindowsTargetPlatformVersion)' == '' and '$(_LatestWindowsTargetPlatformVersion)' != ''">10.0</WindowsTargetPlatformVersion>
</PropertyGroup>