132 lines
6.6 KiB
XML
132 lines
6.6 KiB
XML
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<Import Project="$(VCTargetsPath)\Microsoft.CppCommon.targets" />
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<PropertyGroup>
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<!-- Set the path to clang-cl executable based on the value of the project-
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level setting. This has to be done in the .targets file since values
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selected via the settings UI appear in the vcxproj (which is imported
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before the targets file but after the props file) and we need the path
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that the user may have overridden in the UI. -->
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<CLToolExe Condition="$(UseClangCl)">$(ClangClExecutable)</CLToolExe>
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<LinkToolExe Condition="$(UseLldLink)">$(LldLinkExecutable)</LinkToolExe>
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</PropertyGroup>
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<ItemGroup>
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<PropertyPageSchema Include="$(VCTargetsPath)$(LangID)\llvm-general.xml">
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<Context>Project</Context>
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</PropertyPageSchema>
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</ItemGroup>
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<!-- Take any clang-specific options that the user wants to pass and stick them onto the
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general purpose list of command line flags. -->
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<ItemDefinitionGroup Condition="$(UseClangCl)">
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<ClCompile>
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<AdditionalOptions>-m$(PlatformArchitecture) $(ClangClAdditionalOptions) %(AdditionalOptions)</AdditionalOptions>
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</ClCompile>
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</ItemDefinitionGroup>
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<ItemDefinitionGroup Condition="$(UseLldLink)">
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<Link>
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<AdditionalOptions>$(LldLinkAdditionalOptions) %(AdditionalOptions)</AdditionalOptions>
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</Link>
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</ItemDefinitionGroup>
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<!-- We hook up a target to run every time ClCompile is about to run, the
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purpose of which is to sanitize the command line before it gets passed to
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the compiler. Some options we silently discard, other options we warn on
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and then discard, and other options we generate a hard error.
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We try to keep hard errors to a minimum and reserve it for cases where
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the option implies fundamentally different assumptions about the way code
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should be compiled. This code would probably generate an error anyway,
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but at least this way we give the user a more useful message about what
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the actual problem is, rather than relying on some obscure compilation
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error.
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For any options that clang-cl discards, we would prefer to not even pass
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them in on the command line. So if a user starts with a cl projects and
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changes the toolset to clang, they could have set options such as /Gm
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(minimal rebuild), /sdl (Security Checks), etc. The ClCompile task would
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then notice this and pass these through to clang-cl.exe. Clang would of
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course ignore them, but in some cases (such as /Gm), they would generate
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-Wunused-command-line-argument warnings, so it's better if we can just
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strip them from the command line entirely. This also has the side
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benefit of making command lines shorter which is always nice when trying
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to look at the tool output.
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-->
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<Target Name="BeforeClCompile" BeforeTargets="ClCompile" Condition="$(UseClangCl)">
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<!-- Error if they're trying to compile this file as managed code. -->
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<Error Condition="('%(ClCompile.CompileAsManaged)' != 'false') AND ('%(ClCompile.CompileAsManaged)' != '')"
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File="@(ClCompile)(0,0)"
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Text="clang-cl does not support compiling managed code (/clr). This file cannot be compiled."/>
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<!-- Error if WinRT is being used. -->
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<Error Condition="('%(ClCompile.CompileAsWinRT)' == 'true') OR ('%(ClCompile.WinRTNoStdLib)' == 'true')"
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File="@(ClCompile)(0,0)"
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Text="clang-cl does not support Windows Runtime Language Extensions (/ZW, /ZW:nostdlib). This file cannot be compiled."/>
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<!-- Error if OpenMP language extensions are enabled. -->
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<Error Condition="'%(ClCompile.OpenMPSupport)' == 'true'"
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File="@(ClCompile)(0,0)"
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Text="clang-cl does not support OpenMP (/openmp). This file cannot be compiled."/>
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<!-- Error if C++ Modules are enabled. Clang has its own notion of modules that are not compatible. -->
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<Error Condition="'%(ClCompile.EnableModules)' == 'true'"
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File="@(ClCompile)(0,0)"
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Text="clang-cl does not support MSVC Modules (/experimental:module). This file cannot be compiled."/>
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<ItemGroup>
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<ClCompile>
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<!-- Map /ZI and /Zi to /Z7. Clang internally does this, so if we were
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to just pass the option through, clang would work. The problem is
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that MSBuild would not. MSBuild detects /ZI and /Zi and then
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assumes (rightly) that there will be a compiler-generated PDB (e.g.
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vc141.pdb). Since clang-cl will not emit this, MSBuild will always
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think that the compiler-generated PDB needs to be re-generated from
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scratch and trigger a full build. The way to avoid this is to
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always give MSBuild accurate information about how we plan to
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generate debug info (which is to always using /Z7 semantics).
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-->
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<DebugInformationFormat Condition="'%(ClCompile.DebugInformationFormat)' == 'ProgramDatabase'">OldStyle</DebugInformationFormat>
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<DebugInformationFormat Condition="'%(ClCompile.DebugInformationFormat)' == 'EditAndContinue'">OldStyle</DebugInformationFormat>
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<!-- Unset any options that we either silently ignore or warn about due to compatibility.
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Generally when an option is set to no value, that means "Don't pass an option to the
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compiler at all."
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-->
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<WholeProgramOptimization/>
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<EnableFiberSafeOptimizations/>
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<IgnoreStandardIncludePath/>
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<EnableParallelCodeGeneration/>
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<ForceConformanceInForLoopScope/>
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<TreatWChar_tAsBuiltInType/>
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<SDLCheck/>
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<GenerateXMLDocumentationFiles/>
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<BrowseInformation/>
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<EnablePREfast/>
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<MinimalRebuild/>
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<StringPooling/>
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<ExpandAttributedSource/>
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<EnforceTypeConversionRules/>
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<ErrorReporting/>
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<DisableLanguageExtensions/>
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<ProgramDataBaseFileName/>
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<DisableSpecificWarnings/>
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<TreatSpecificWarningsAsErrors/>
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<ForcedUsingFiles/>
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<PREfastLog/>
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<PREfastAdditionalOptions/>
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<PREfastAdditionalPlugins/>
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<MultiProcessorCompilation/>
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<UseFullPaths/>
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<RemoveUnreferencedCodeData/>
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<!-- We can't just unset BasicRuntimeChecks, as that will pass /RTCu to the compiler.
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We have to explicitly set it to 'Default' to avoid passing anything. -->
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<BasicRuntimeChecks>Default</BasicRuntimeChecks>
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</ClCompile>
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</ItemGroup>
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</Target>
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</Project>
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