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CMake: Builds a native tblgen when cross-compiling and the user didn't

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set LLVM_TABLEGEN.

llvm-svn: 58953
This commit is contained in:
Oscar Fuentes 2008-11-10 02:35:55 +00:00
parent e2bed5dc3b
commit dcc0b8b548
2 changed files with 20 additions and 31 deletions
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2
CMakeLists.txt
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@ -139,7 +139,7 @@ add_subdirectory(lib/System)
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} ${LLVM_LIBS} )
set(LLVM_TABLEGEN "tblgen" CACHE
STRING "Native TableGen executable.")
STRING "Native TableGen executable. Saves building one when cross-compiling.")
add_subdirectory(utils/TableGen)

49
cmake/modules/CrossCompileLLVM.cmake
View File

@ -1,42 +1,31 @@
if( ${LLVM_TABLEGEN} STREQUAL "tblgen" )
# TODO: remove this when autobuilding the native tblgen works.
message(FATAL_ERROR
"Set LLVM_TABLEGEN to the full route to a native tblgen executable")
message(STATUS "Configuring native TableGen...")
set(CX_NATIVE_TG_DIR "${CMAKE_BINARY_DIR}/native")
execute_process(COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR}
RESULT_VARIABLE CX_NATIVE_TG_RV)
if( NOT CX_NATIVE_TG_RV EQUAL 0 )
message(FATAL_ERROR "Failed to create directory ${CX_NATIVE_TG_DIR}")
endif()
execute_process(
COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
RESULT_VARIABLE CX_NATIVE_TG_RV
ERROR_VARIABLE CX_NATIVE_TG_ERROR)
if( NOT CX_NATIVE_TG_RV EQUAL 0 )
message(FATAL_ERROR
"Error while configuring native TableGen:\n${CX_NATIVE_TG_ERROR}")
endif()
message(STATUS "Native TableGen configured.")
set(LLVM_TABLEGEN "${CX_NATIVE_TG_DIR}/bin/tblgen")
message(STATUS "CX_NATIVE_TG_DIR : ${CX_NATIVE_TG_DIR}")
add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}
COMMAND ${CMAKE_COMMAND} -E make_directory ${CX_NATIVE_TG_DIR}
COMMENT "Creating ${CX_NATIVE_TG_DIR}...")
add_custom_command(OUTPUT ${CX_NATIVE_TG_DIR}/CMakeCache.txt
COMMAND ${CMAKE_COMMAND} -UMAKE_TOOLCHAIN_FILE -DCMAKE_BUILD_TYPE=Release ${CMAKE_SOURCE_DIR}
WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}
DEPENDS ${CX_NATIVE_TG_DIR}
COMMENT "Configuring native TableGen...")
add_custom_command(OUTPUT ${LLVM_TABLEGEN}
COMMAND ${CMAKE_BUILD_TOOL} -C ${CX_NATIVE_TG_DIR}/utils/TableGen
COMMAND ${CMAKE_BUILD_TOOL}
DEPENDS ${CX_NATIVE_TG_DIR}/CMakeCache.txt
WORKING_DIRECTORY ${CX_NATIVE_TG_DIR}/utils/TableGen
COMMENT "Building native TableGen...")
add_custom_target(NativeTableGen DEPENDS ${LLVM_TABLEGEN})
add_dependencies(tblgen NativeTableGen)
# TODO: We should clean the native build when the `clean target
# is invoked. This doesn't work.
# add_custom_command(TARGET clean
# COMMAND ${CMAKE_BUILD_TOOL} -C ${CX_NATIVE_TG_DIR}/utils/TableGen clean
# POST_BUILD
# COMMENT "Cleaning native TableGen...")
# add_custom_command(TARGET clean
# COMMAND ${CMAKE_BUILD_TOOL} -C ${CX_NATIVE_TG_DIR}/utils/TableGen clean
# POST_BUILD
# COMMENT "Cleaning native TableGen...")
endif()