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96a953b1ed
Offer the capability, through variable `CMAKE_LINKER_TYPE`, as well as the target property `LINKER_TYPE` to specify which linker must be used. The implementation of this capability is specified by variables specific to the language and linker type: `CMAKE_<LANG>_USING_LINKER_<TYPE>`. Some definitions are provided as part of `CMake`. For example, to select the `LLVM` linker rather than the standard one, the type `LLD` should be specified through the variable `CMAKE_LINKER_TYPE`. And, on `Apple`, `Linux` and some environments on `Windows`, the variable `CMAKE_<LANG>_USING_LINKER_LLD` has value `-fuse-ld=lld`. And for `Windows` environments based on `MSVC`, where the linker is used directly, the tool `lld-link.exe` will be used rather than `link.exe`. Fixes: #19174, #24254, #24990
95 lines
3.0 KiB
C++
95 lines
3.0 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <map>
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#include <string>
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#include "cmPlaceholderExpander.h"
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class cmOutputConverter;
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class cmRulePlaceholderExpander : public cmPlaceholderExpander
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{
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public:
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cmRulePlaceholderExpander(
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std::map<std::string, std::string> compilers,
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std::map<std::string, std::string> variableMappings,
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std::string compilerSysroot, std::string linkerSysroot);
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void SetTargetImpLib(std::string const& targetImpLib)
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{
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this->TargetImpLib = targetImpLib;
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}
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// Create a struct to hold the variables passed into
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// ExpandRuleVariables
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struct RuleVariables
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{
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const char* CMTargetName = nullptr;
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const char* CMTargetType = nullptr;
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const char* TargetPDB = nullptr;
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const char* TargetCompilePDB = nullptr;
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const char* TargetVersionMajor = nullptr;
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const char* TargetVersionMinor = nullptr;
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const char* Language = nullptr;
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const char* AIXExports = nullptr;
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const char* Objects = nullptr;
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const char* Target = nullptr;
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const char* LinkLibraries = nullptr;
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const char* Source = nullptr;
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const char* AssemblySource = nullptr;
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const char* PreprocessedSource = nullptr;
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const char* DynDepFile = nullptr;
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const char* Output = nullptr;
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const char* Object = nullptr;
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const char* ObjectDir = nullptr;
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const char* ObjectFileDir = nullptr;
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const char* Flags = nullptr;
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const char* ObjectsQuoted = nullptr;
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const char* SONameFlag = nullptr;
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const char* TargetSOName = nullptr;
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const char* TargetInstallNameDir = nullptr;
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const char* Linker = nullptr;
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const char* LinkFlags = nullptr;
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const char* Manifests = nullptr;
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const char* LanguageCompileFlags = nullptr;
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const char* Defines = nullptr;
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const char* Includes = nullptr;
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const char* DependencyFile = nullptr;
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const char* DependencyTarget = nullptr;
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const char* FilterPrefix = nullptr;
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const char* SwiftLibraryName = nullptr;
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const char* SwiftModule = nullptr;
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const char* SwiftModuleName = nullptr;
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const char* SwiftOutputFileMapOption = nullptr;
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const char* SwiftSources = nullptr;
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const char* ISPCHeader = nullptr;
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const char* CudaCompileMode = nullptr;
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const char* Fatbinary = nullptr;
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const char* RegisterFile = nullptr;
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const char* Launcher = nullptr;
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};
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// Expand rule variables in CMake of the type found in language rules
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void ExpandRuleVariables(cmOutputConverter* outputConverter,
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std::string& string,
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const RuleVariables& replaceValues);
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private:
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std::string ExpandVariable(std::string const& variable) override;
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std::string TargetImpLib;
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std::map<std::string, std::string> Compilers;
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std::map<std::string, std::string> VariableMappings;
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std::string CompilerSysroot;
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std::string LinkerSysroot;
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cmOutputConverter* OutputConverter = nullptr;
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RuleVariables const* ReplaceValues = nullptr;
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};
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