Add options to specify linker tool

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

1 files changed, 8 insertions, 0 deletions

diff --git a/Source/cmNinjaNormalTargetGenerator.cxx b/Source/cmNinjaNormalTargetGenerator.cxx
index 48c30b6..5e7bb6e 100644
--- a/Source/cmNinjaNormalTargetGenerator.cxx
+++ b/Source/cmNinjaNormalTargetGenerator.cxx
@@ -294,6 +294,9 @@ void cmNinjaNormalTargetGenerator::WriteNvidiaDeviceLinkRule(
         .c_str();
 
     vars.Language = "CUDA";
+    std::string linker =
+      this->GetGeneratorTarget()->GetLinkerTool("CUDA", config);
+    vars.Linker = linker.c_str();
 
     // build response file name
     std::string responseFlag = this->GetMakefile()->GetSafeDefinition(
@@ -400,6 +403,9 @@ void cmNinjaNormalTargetGenerator::WriteDeviceLinkRules(
   vars.Fatbinary = "$FATBIN";
   vars.RegisterFile = "$REGISTER";
   vars.LinkFlags = "$LINK_FLAGS";
+  std::string linker =
+    this->GetGeneratorTarget()->GetLinkerTool("CUDA", config);
+  vars.Linker = linker.c_str();
 
   std::string flags = this->GetFlags("CUDA", config);
   vars.Flags = flags.c_str();
@@ -441,6 +447,8 @@ void cmNinjaNormalTargetGenerator::WriteLinkRule(bool useResponseFile,
     vars.CMTargetName = this->GetGeneratorTarget()->GetName().c_str();
     vars.CMTargetType = cmState::GetTargetTypeName(targetType).c_str();
 
+    std::string linker = this->GetGeneratorTarget()->GetLinkerTool(config);
+    vars.Linker = linker.c_str();
     std::string lang = this->TargetLinkLanguage(config);
     vars.Language = lang.c_str();
     vars.AIXExports = "$AIX_EXPORTS";