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[CMake] Fix cross-compiling with LLVM as CMake subproject

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When embedding LLVM as a CMake subproject, using cross-compiling does
not work at the moment. This also affects -DLLVM_OPTIMIZED_TABLEGEN=1,
which uses the same CMake infrastructure.

This patch replaces global CMake variables with the current version,
which allows cross-compilation to work in a subproject.

CMAKE_BINARY_DIR -> CMAKE_CURRENT_BINARY_DIR
CMAKE_SOURCE_DIR -> CMAKE_CURRENT_SOURCE_DIR
CMAKE_PROJECT_NAME -> PROJECT_NAME

Differential Revision: https://reviews.llvm.org/D78913
This commit is contained in:
Sebastian Neubauer 2020-04-27 11:40:31 +02:00
parent 1fc62e740a
commit 138b7b6167
1 changed files with 7 additions and 7 deletions
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14
cmake/modules/CrossCompile.cmake
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@ -6,7 +6,7 @@ function(llvm_create_cross_target project_name target_name toolchain buildtype)
if(NOT DEFINED ${project_name}_${target_name}_BUILD)
set(${project_name}_${target_name}_BUILD
"${CMAKE_BINARY_DIR}/${target_name}")
"${CMAKE_CURRENT_BINARY_DIR}/${target_name}")
set(${project_name}_${target_name}_BUILD
${${project_name}_${target_name}_BUILD} PARENT_SCOPE)
message(STATUS "Setting native build dir to " ${${project_name}_${target_name}_BUILD})
@ -68,7 +68,7 @@ function(llvm_create_cross_target project_name target_name toolchain buildtype)
add_custom_command(OUTPUT ${${project_name}_${target_name}_BUILD}/CMakeCache.txt
COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
-DCMAKE_MAKE_PROGRAM="${CMAKE_MAKE_PROGRAM}"
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_CURRENT_SOURCE_DIR}
${CROSS_TOOLCHAIN_FLAGS_${project_name}_${target_name}}
-DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE
-DLLVM_TARGETS_TO_BUILD="${targets_to_build_arg}"
@ -99,17 +99,17 @@ function(build_native_tool target output_path_var)
cmake_parse_arguments(ARG "" "" "DEPENDS" ${ARGN})
if(CMAKE_CONFIGURATION_TYPES)
set(output_path "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}/Release/bin/${target}")
set(output_path "${${PROJECT_NAME}_NATIVE_BUILD}/Release/bin/${target}")
else()
set(output_path "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}/bin/${target}")
set(output_path "${${PROJECT_NAME}_NATIVE_BUILD}/bin/${target}")
endif()
llvm_ExternalProject_BuildCmd(build_cmd ${target} ${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}
llvm_ExternalProject_BuildCmd(build_cmd ${target} ${${PROJECT_NAME}_NATIVE_BUILD}
CONFIGURATION Release)
add_custom_command(OUTPUT "${output_path}"
COMMAND ${build_cmd}
DEPENDS CONFIGURE_${CMAKE_PROJECT_NAME}_NATIVE ${ARG_DEPENDS}
WORKING_DIRECTORY "${${CMAKE_PROJECT_NAME}_NATIVE_BUILD}"
DEPENDS CONFIGURE_${PROJECT_NAME}_NATIVE ${ARG_DEPENDS}
WORKING_DIRECTORY "${${PROJECT_NAME}_NATIVE_BUILD}"
COMMENT "Building native ${target}..."
USES_TERMINAL)
set(${output_path_var} "${output_path}" PARENT_SCOPE)