[CMake] Use LLVM_TARGET_TRIPLE in runtimes

This variable is derived from LLVM_DEFAULT_TARGET_TRIPLE by default,
but using a separate variable allows additional normalization to be
performed if needed.

Differential Revision: https://reviews.llvm.org/D137451

Author: petrhosek

compiler-rt/cmake/config-ix.cmake

@@ -693,8 +693,8 @@ else()
   set(CAN_SYMBOLIZE 1)
 endif()
 
-find_program(GNU_LD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.bfd ld.bfd DOC "GNU ld")
-find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold DOC "GNU gold")
+find_program(GNU_LD_EXECUTABLE NAMES ${LLVM_TARGET_TRIPLE}-ld.bfd ld.bfd DOC "GNU ld")
+find_program(GOLD_EXECUTABLE NAMES ${LLVM_TARGET_TRIPLE}-ld.gold ld.gold DOC "GNU gold")
 
 if(COMPILER_RT_SUPPORTED_ARCH)
   list(REMOVE_DUPLICATES COMPILER_RT_SUPPORTED_ARCH)

libc/lib/CMakeLists.txt

@@ -10,7 +10,7 @@ set_target_properties(
 )
 
 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR)
-  set(LIBC_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE})
+  set(LIBC_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_TARGET_TRIPLE})
 else()
   set(LIBC_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX})
 endif()

libcxx/CMakeLists.txt

@@ -413,12 +413,12 @@ set(LIBCXX_SHARED_OUTPUT_NAME "c++" CACHE STRING "Output name for the shared lib
 set(LIBCXX_STATIC_OUTPUT_NAME "c++" CACHE STRING "Output name for the static libc++ runtime library.")
 
 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
-  set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE})
+  set(LIBCXX_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_TARGET_TRIPLE})
   set(LIBCXX_GENERATED_INCLUDE_DIR "${LLVM_BINARY_DIR}/include/c++/v1")
-  set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LLVM_BINARY_DIR}/include/${LLVM_DEFAULT_TARGET_TRIPLE}/c++/v1")
-  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE} CACHE PATH
+  set(LIBCXX_GENERATED_INCLUDE_TARGET_DIR "${LLVM_BINARY_DIR}/include/${LLVM_TARGET_TRIPLE}/c++/v1")
+  set(LIBCXX_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_TARGET_TRIPLE} CACHE PATH
       "Path where built libc++ libraries should be installed.")
-  set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "${CMAKE_INSTALL_INCLUDEDIR}/${LLVM_DEFAULT_TARGET_TRIPLE}/c++/v1" CACHE PATH
+  set(LIBCXX_INSTALL_INCLUDE_TARGET_DIR "${CMAKE_INSTALL_INCLUDEDIR}/${LLVM_TARGET_TRIPLE}/c++/v1" CACHE PATH
       "Path where target-specific libc++ headers should be installed.")
   if(LIBCXX_LIBDIR_SUBDIR)
     string(APPEND LIBCXX_LIBRARY_DIR /${LIBCXX_LIBDIR_SUBDIR})

libcxx/docs/BuildingLibcxx.rst

@@ -281,7 +281,7 @@ libc++ specific options
 .. option:: LIBCXX_INSTALL_INCLUDE_TARGET_DIR:PATH
 
   **Default**: ``include/c++/v1`` or
-  ``include/${LLVM_DEFAULT_TARGET_TRIPLE}/c++/v1``
+  ``include/${LLVM_TARGET_TRIPLE}/c++/v1``
 
   Path where target-specific libc++ headers should be installed. If a relative
   path, relative to ``CMAKE_INSTALL_PREFIX``.

libcxx/lib/abi/CMakeLists.txt

@@ -43,7 +43,7 @@ endfunction()
 if (CMAKE_CXX_COMPILER_TARGET)
   set(triple "${CMAKE_CXX_COMPILER_TARGET}")
 else()
-  set(triple "${LLVM_DEFAULT_TARGET_TRIPLE}")
+  set(triple "${LLVM_TARGET_TRIPLE}")
 endif()
 cxx_abi_list_identifier(abi_list_identifier
   "${triple}"

libcxx/test/CMakeLists.txt

@@ -29,7 +29,7 @@ endif()
 if (CMAKE_CXX_COMPILER_TARGET)
   serialize_lit_param(target_triple "\"${CMAKE_CXX_COMPILER_TARGET}\"")
 else()
-  serialize_lit_param(target_triple "\"${LLVM_DEFAULT_TARGET_TRIPLE}\"")
+  serialize_lit_param(target_triple "\"${LLVM_TARGET_TRIPLE}\"")
 endif()
 
 if (LLVM_USE_SANITIZER)

libcxxabi/CMakeLists.txt

@@ -189,8 +189,8 @@ set(LIBCXXABI_INSTALL_RUNTIME_DIR "${CMAKE_INSTALL_BINDIR}" CACHE PATH
 
 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
   set(LIBCXXABI_HEADER_DIR ${LLVM_BINARY_DIR})
-  set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE})
-  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE} CACHE PATH
+  set(LIBCXXABI_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_TARGET_TRIPLE})
+  set(LIBCXXABI_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_TARGET_TRIPLE} CACHE PATH
       "Path where built libc++abi libraries should be installed.")
   if(LIBCXX_LIBDIR_SUBDIR)
     string(APPEND LIBCXXABI_LIBRARY_DIR /${LIBCXXABI_LIBDIR_SUBDIR})

libcxxabi/test/CMakeLists.txt

@@ -50,7 +50,7 @@ endif()
 if (CMAKE_CXX_COMPILER_TARGET)
   serialize_lit_param(target_triple "\"${CMAKE_CXX_COMPILER_TARGET}\"")
 else()
-  serialize_lit_param(target_triple "\"${LLVM_DEFAULT_TARGET_TRIPLE}\"")
+  serialize_lit_param(target_triple "\"${LLVM_TARGET_TRIPLE}\"")
 endif()
 
 foreach(param IN LISTS LIBCXXABI_TEST_PARAMS)

libunwind/CMakeLists.txt

@@ -115,8 +115,8 @@ set(LIBUNWIND_SHARED_OUTPUT_NAME "unwind" CACHE STRING "Output name for the shar
 set(LIBUNWIND_STATIC_OUTPUT_NAME "unwind" CACHE STRING "Output name for the static libunwind runtime library.")
 
 if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE)
-  set(LIBUNWIND_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_DEFAULT_TARGET_TRIPLE})
-  set(LIBUNWIND_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_DEFAULT_TARGET_TRIPLE} CACHE PATH
+  set(LIBUNWIND_LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/${LLVM_TARGET_TRIPLE})
+  set(LIBUNWIND_INSTALL_LIBRARY_DIR lib${LLVM_LIBDIR_SUFFIX}/${LLVM_TARGET_TRIPLE} CACHE PATH
       "Path where built libunwind libraries should be installed.")
   if(LIBCXX_LIBDIR_SUBDIR)
     string(APPEND LIBUNWIND_LIBRARY_DIR /${LIBUNWIND_LIBDIR_SUBDIR})

libunwind/test/CMakeLists.txt

@@ -29,7 +29,7 @@ endif()
 if (CMAKE_CXX_COMPILER_TARGET)
   serialize_lit_param(target_triple "\"${CMAKE_CXX_COMPILER_TARGET}\"")
 else()
-  serialize_lit_param(target_triple "\"${LLVM_DEFAULT_TARGET_TRIPLE}\"")
+  serialize_lit_param(target_triple "\"${LLVM_TARGET_TRIPLE}\"")
 endif()
 
 foreach(param IN LISTS LIBUNWIND_TEST_PARAMS)

llvm/cmake/modules/LLVMExternalProjectUtils.cmake

@@ -78,7 +78,7 @@ function(llvm_ExternalProject_Add name source_dir)
   endif()
 
   if(NOT ARG_TARGET_TRIPLE)
-    set(target_triple ${LLVM_DEFAULT_TARGET_TRIPLE})
+    set(target_triple ${LLVM_TARGET_TRIPLE})
   else()
     set(target_triple ${ARG_TARGET_TRIPLE})
   endif()

llvm/runtimes/CMakeLists.txt

@@ -74,7 +74,7 @@ function(builtin_default_target compiler_rt_path)
                            DEPENDS ${ARG_DEPENDS}
                            CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
                                       -DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
-                                      -DLLVM_DEFAULT_TARGET_TRIPLE=${LLVM_TARGET_TRIPLE}
+                                      -DLLVM_TARGET_TRIPLE=${LLVM_TARGET_TRIPLE}
                                       -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default}
                                       -DCMAKE_C_COMPILER_WORKS=ON
                                       -DCMAKE_ASM_COMPILER_WORKS=ON
@@ -108,7 +108,7 @@ function(builtin_register_target compiler_rt_path target)
                            DEPENDS ${ARG_DEPENDS}
                            CMAKE_ARGS -DLLVM_LIBRARY_OUTPUT_INTDIR=${LLVM_LIBRARY_DIR}
                                       -DLLVM_RUNTIME_OUTPUT_INTDIR=${LLVM_TOOLS_BINARY_DIR}
-                                      -DLLVM_DEFAULT_TARGET_TRIPLE=${target}
+                                      -DLLVM_TARGET_TRIPLE=${target}
                                       -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
                                       -DCMAKE_C_COMPILER_WORKS=ON
                                       -DCMAKE_ASM_COMPILER_WORKS=ON
@@ -228,7 +228,7 @@ function(runtime_default_target)
                            # Builtins were built separately above
                            CMAKE_ARGS -DCOMPILER_RT_BUILD_BUILTINS=Off
                                       -DLLVM_INCLUDE_TESTS=${LLVM_INCLUDE_TESTS}
-                                      -DLLVM_DEFAULT_TARGET_TRIPLE=${LLVM_TARGET_TRIPLE}
+                                      -DLLVM_TARGET_TRIPLE=${LLVM_TARGET_TRIPLE}
                                       -DLLVM_ENABLE_PROJECTS_USED=${LLVM_ENABLE_PROJECTS_USED}
                                       -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=${LLVM_ENABLE_PER_TARGET_RUNTIME_DIR_default}
                                       -DLLVM_BUILD_TOOLS=${LLVM_BUILD_TOOLS}
@@ -337,7 +337,7 @@ function(runtime_register_target name target)
                            # Builtins were built separately above
                            CMAKE_ARGS -DCOMPILER_RT_BUILD_BUILTINS=Off
                                       -DLLVM_INCLUDE_TESTS=${LLVM_INCLUDE_TESTS}
-                                      -DLLVM_DEFAULT_TARGET_TRIPLE=${target}
+                                      -DLLVM_TARGET_TRIPLE=${target}
                                       -DLLVM_ENABLE_PROJECTS_USED=${LLVM_ENABLE_PROJECTS_USED}
                                       -DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
                                       -DCMAKE_C_COMPILER_WORKS=ON

runtimes/CMakeLists.txt

@@ -154,8 +154,8 @@ find_package(Python3 REQUIRED COMPONENTS Interpreter)
 # Host triple is used by tests to check if they are running natively.
 include(GetHostTriple)
 get_host_triple(LLVM_HOST_TRIPLE)
-set(LLVM_DEFAULT_TARGET_TRIPLE "${LLVM_HOST_TRIPLE}" CACHE STRING
-  "Default target for which the runtimes will be built.")
+set(LLVM_TARGET_TRIPLE "${LLVM_HOST_TRIPLE}" CACHE STRING
+  "Target for which the runtimes will be built.")
 
 option(LLVM_INCLUDE_TESTS "Generate build targets for the runtimes unit tests." ON)
 option(LLVM_INCLUDE_DOCS "Generate build targets for the runtimes documentation." ON)