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[CMake] Provide an option to disable runtimes build

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This could be used to either disable the runtimes build altogether
or avoid building them but still generate the build targets.

Differential Revision: https://reviews.llvm.org/D31060

llvm-svn: 298653
This commit is contained in:
Petr Hosek 2017-03-23 22:40:10 +00:00
parent 112c58a796
commit c7a150fa81
2 changed files with 17 additions and 4 deletions
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8
CMakeLists.txt
View File

@ -483,6 +483,10 @@ option(LLVM_INCLUDE_UTILS "Generate build targets for the LLVM utils." ON)
option(LLVM_BUILD_UTILS option(LLVM_BUILD_UTILS
"Build LLVM utility binaries. If OFF, just generate build targets." ON) "Build LLVM utility binaries. If OFF, just generate build targets." ON)
option(LLVM_INCLUDE_RUNTIMES "Generate build targets for the LLVM runtimes." ON)
option(LLVM_BUILD_RUNTIMES
"Build the LLVM runtimes. If OFF, just generate build targets." ON)
option(LLVM_BUILD_RUNTIME option(LLVM_BUILD_RUNTIME
"Build the LLVM runtime libraries." ON) "Build the LLVM runtime libraries." ON)
option(LLVM_BUILD_EXAMPLES option(LLVM_BUILD_EXAMPLES
@ -862,7 +866,9 @@ if( LLVM_INCLUDE_TOOLS )
add_subdirectory(tools) add_subdirectory(tools)
endif() endif()
add_subdirectory(runtimes) if( LLVM_INCLUDE_RUNTIMES )
add_subdirectory(runtimes)
endif()
if( LLVM_INCLUDE_EXAMPLES ) if( LLVM_INCLUDE_EXAMPLES )
add_subdirectory(examples) add_subdirectory(examples)

13
runtimes/CMakeLists.txt
View File

@ -145,6 +145,10 @@ else() # if this is included from LLVM's CMake
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${LLVM_BINARY_DIR}/runtimes/Components.cmake) set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${LLVM_BINARY_DIR}/runtimes/Components.cmake)
include(LLVMExternalProjectUtils) include(LLVMExternalProjectUtils)
if(NOT LLVM_BUILD_RUNTIMES)
set(EXTRA_ARGS EXCLUDE_FROM_ALL)
endif()
# If compiler-rt is present we need to build the builtin libraries first. This # If compiler-rt is present we need to build the builtin libraries first. This
# is required because the other runtimes need the builtin libraries present # is required because the other runtimes need the builtin libraries present
# before the just-built compiler can pass the configuration tests. # before the just-built compiler can pass the configuration tests.
@ -157,7 +161,8 @@ else() # if this is included from LLVM's CMake
-DCMAKE_C_COMPILER_TARGET=${TARGET_TRIPLE} -DCMAKE_C_COMPILER_TARGET=${TARGET_TRIPLE}
-DCMAKE_ASM_COMPILER_TARGET=${TARGET_TRIPLE} -DCMAKE_ASM_COMPILER_TARGET=${TARGET_TRIPLE}
PASSTHROUGH_PREFIXES COMPILER_RT PASSTHROUGH_PREFIXES COMPILER_RT
USE_TOOLCHAIN) USE_TOOLCHAIN
${EXTRA_ARGS})
else() else()
get_cmake_property(variableNames VARIABLES) get_cmake_property(variableNames VARIABLES)
add_custom_target(builtins) add_custom_target(builtins)
@ -179,7 +184,8 @@ else() # if this is included from LLVM's CMake
-DCOMPILER_RT_DEFAULT_TARGET_ONLY=On -DCOMPILER_RT_DEFAULT_TARGET_ONLY=On
${${target}_extra_args} ${${target}_extra_args}
PASSTHROUGH_PREFIXES COMPILER_RT PASSTHROUGH_PREFIXES COMPILER_RT
USE_TOOLCHAIN) USE_TOOLCHAIN
${EXTRA_ARGS})
add_dependencies(builtins builtins-${target}) add_dependencies(builtins builtins-${target})
endforeach() endforeach()
endif() endif()
@ -238,7 +244,8 @@ else() # if this is included from LLVM's CMake
${SUB_COMPONENTS} ${SUB_COMPONENTS}
${SUB_COMPONENT_CHECK_TARGETS} ${SUB_COMPONENT_CHECK_TARGETS}
${SUB_INSTALL_TARGETS} ${SUB_INSTALL_TARGETS}
USE_TOOLCHAIN) USE_TOOLCHAIN
${EXTRA_ARGS})
# TODO: This is a hack needed because the libcxx headers are copied into the # TODO: This is a hack needed because the libcxx headers are copied into the
# build directory during configuration. Without that step the clang in the # build directory during configuration. Without that step the clang in the