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llvm-mirror/cmake/modules/CrossCompile.cmake

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CMake
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[CMake] Fixing a typo This was called out on the list a long time ago and just got pointed out to me again. Need to fix it before I forget. llvm-svn: 272201
2016-06-08 23:22:03 +02:00
function(llvm_create_cross_target_internal target_name toolchain buildtype)
Refactoring CMake CrossCompile module. * put most of the cross-compiling support into a function llvm_create_cross_target_internal. * when CrossCompile is included it still generates a NATIVE target. * llvm_create_cross_target function takes a target_name which should match a toolchain. * llvm_create_cross_target can now be used to target more than one cross-compilation target. llvm-svn: 232067
2015-03-12 18:33:34 +01:00
if(NOT DEFINED LLVM_${target_name}_BUILD)
set(LLVM_${target_name}_BUILD "${CMAKE_BINARY_DIR}/${target_name}")
set(LLVM_${target_name}_BUILD ${LLVM_${target_name}_BUILD} PARENT_SCOPE)
message(STATUS "Setting native build dir to " ${LLVM_${target_name}_BUILD})
endif(NOT DEFINED LLVM_${target_name}_BUILD)
if (EXISTS ${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake)
set(CROSS_TOOLCHAIN_FLAGS_${target_name}
-DCMAKE_TOOLCHAIN_FILE=\"${LLVM_MAIN_SRC_DIR}/cmake/platforms/${toolchain}.cmake\"
CACHE STRING "Toolchain file for ${target_name}")
endif()
[cmake] Re-commit: Remove redundant call to cmake when building host tools. Also pass CMAKE_(C|CXX)_COMPILER to add_custom_command. Summary: Remove the redundant, config-time call to cmake when building host tools for cross compiles or optimized tablegen.. The config-time call to cmake is redundant because it will always get called again when the CONFIGURE_LLVM_${target_name} target fires at build-time. This speeds up initial configuration, but has no affect on build behavior. Differential Revision: https://reviews.llvm.org/D40229 llvm-svn: 319620
2017-12-02 20:12:38 +01:00
if (buildtype)
set(build_type_flags "-DCMAKE_BUILD_TYPE=${buildtype}")
endif()
if (LLVM_USE_LINKER AND NOT CMAKE_CROSSCOMPILING)
set(linker_flag "-DLLVM_USE_LINKER=${LLVM_USE_LINKER}")
endif()
if (LLVM_EXTERNAL_CLANG_SOURCE_DIR)
# Propagate LLVM_EXTERNAL_CLANG_SOURCE_DIR so that clang-tblgen can be built
set(external_clang_dir "-DLLVM_EXTERNAL_CLANG_SOURCE_DIR=${LLVM_EXTERNAL_CLANG_SOURCE_DIR}")
endif()
Refactoring CMake CrossCompile module. * put most of the cross-compiling support into a function llvm_create_cross_target_internal. * when CrossCompile is included it still generates a NATIVE target. * llvm_create_cross_target function takes a target_name which should match a toolchain. * llvm_create_cross_target can now be used to target more than one cross-compilation target. llvm-svn: 232067
2015-03-12 18:33:34 +01:00
add_custom_command(OUTPUT ${LLVM_${target_name}_BUILD}
COMMAND ${CMAKE_COMMAND} -E make_directory ${LLVM_${target_name}_BUILD}
COMMENT "Creating ${LLVM_${target_name}_BUILD}...")
[CMake] Add custom target to create build directory CMake does a poor job in tracking dependencies on files and directories directly. Create custom target similar to the configuration step. On my system, this avoids the reconfiguration on each build. Differential Revision: https://reviews.llvm.org/D39298 llvm-svn: 317694
2017-11-08 15:31:51 +01:00
add_custom_target(CREATE_LLVM_${target_name}
DEPENDS ${LLVM_${target_name}_BUILD})
Refactoring CMake CrossCompile module. * put most of the cross-compiling support into a function llvm_create_cross_target_internal. * when CrossCompile is included it still generates a NATIVE target. * llvm_create_cross_target function takes a target_name which should match a toolchain. * llvm_create_cross_target can now be used to target more than one cross-compilation target. llvm-svn: 232067
2015-03-12 18:33:34 +01:00
add_custom_command(OUTPUT ${LLVM_${target_name}_BUILD}/CMakeCache.txt
COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}"
[cmake] Re-commit: Remove redundant call to cmake when building host tools. Also pass CMAKE_(C|CXX)_COMPILER to add_custom_command. Summary: Remove the redundant, config-time call to cmake when building host tools for cross compiles or optimized tablegen.. The config-time call to cmake is redundant because it will always get called again when the CONFIGURE_LLVM_${target_name} target fires at build-time. This speeds up initial configuration, but has no affect on build behavior. Differential Revision: https://reviews.llvm.org/D40229 llvm-svn: 319620
2017-12-02 20:12:38 +01:00
-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}
-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}
[cmake] Move CMAKE_(C|CXX)_COMPILER variables before CROSS_TOOLCHAIN_FLAGS so they can be overridden when cross compiling. Summary: Since CROSS_TOOLCHAN_FLAGS can set CMAKE_(C|CXX)_COMPILER variables, move the compiler variables up front so they can be overridden. This is a followup to https://reviews.llvm.org/D40229 committed in rL319620. Thanks to Pavel Labath for reporting this issue. Reviewers: labath, beanz Subscribers: mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D40896 llvm-svn: 319898
2017-12-06 16:25:14 +01:00
${CROSS_TOOLCHAIN_FLAGS_${target_name}} ${CMAKE_SOURCE_DIR}
-DLLVM_TARGET_IS_CROSSCOMPILE_HOST=TRUE
[cmake] Re-commit: Remove redundant call to cmake when building host tools. Also pass CMAKE_(C|CXX)_COMPILER to add_custom_command. Summary: Remove the redundant, config-time call to cmake when building host tools for cross compiles or optimized tablegen.. The config-time call to cmake is redundant because it will always get called again when the CONFIGURE_LLVM_${target_name} target fires at build-time. This speeds up initial configuration, but has no affect on build behavior. Differential Revision: https://reviews.llvm.org/D40229 llvm-svn: 319620
2017-12-02 20:12:38 +01:00
-DLLVM_TARGETS_TO_BUILD=Native
${build_type_flags} ${linker_flag} ${external_clang_dir}
Refactoring CMake CrossCompile module. * put most of the cross-compiling support into a function llvm_create_cross_target_internal. * when CrossCompile is included it still generates a NATIVE target. * llvm_create_cross_target function takes a target_name which should match a toolchain. * llvm_create_cross_target can now be used to target more than one cross-compilation target. llvm-svn: 232067
2015-03-12 18:33:34 +01:00
WORKING_DIRECTORY ${LLVM_${target_name}_BUILD}
[CMake] Add custom target to create build directory CMake does a poor job in tracking dependencies on files and directories directly. Create custom target similar to the configuration step. On my system, this avoids the reconfiguration on each build. Differential Revision: https://reviews.llvm.org/D39298 llvm-svn: 317694
2017-11-08 15:31:51 +01:00
DEPENDS CREATE_LLVM_${target_name}
Refactoring CMake CrossCompile module. * put most of the cross-compiling support into a function llvm_create_cross_target_internal. * when CrossCompile is included it still generates a NATIVE target. * llvm_create_cross_target function takes a target_name which should match a toolchain. * llvm_create_cross_target can now be used to target more than one cross-compilation target. llvm-svn: 232067
2015-03-12 18:33:34 +01:00
COMMENT "Configuring ${target_name} LLVM...")
add_custom_target(CONFIGURE_LLVM_${target_name}
DEPENDS ${LLVM_${target_name}_BUILD}/CMakeCache.txt)
endfunction()
function(llvm_create_cross_target target_name sysroot)
llvm_create_cross_target_internal(${target_name} ${sysroot} ${CMAKE_BUILD_TYPE})
endfunction()
llvm_create_cross_target_internal(NATIVE "" Release)
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