llvm/tools/llvm-config/CMakeLists.txt
Justin Bogner 8bddda3652 cmake: Don't build llvm-config and tblgen concurrently in cross builds
This sets USES_TERMINAL for the native llvm-config build, so that it
doesn't run at the same time as builds of other native tools (namely,
tablegen). Without this, if you're very unlucky with the timing it's
possible to be relinking libSupport as one of the tools is linking,
causing a spurious failure.

The tablegen build adopted USES_TERMINAL for this same reason in
r280748.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@290271 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-21 21:19:00 +00:00

79 lines
3.0 KiB
CMake

set(LLVM_LINK_COMPONENTS support)
set(BUILDVARIABLES_SRCPATH ${CMAKE_CURRENT_SOURCE_DIR}/BuildVariables.inc.in)
set(BUILDVARIABLES_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.inc)
# Add the llvm-config tool.
add_llvm_tool(llvm-config
llvm-config.cpp
)
# Compute the substitution values for various items.
get_property(LLVM_SYSTEM_LIBS_LIST TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
foreach(l ${LLVM_SYSTEM_LIBS_LIST})
if(MSVC)
set(SYSTEM_LIBS ${SYSTEM_LIBS} "${l}.lib")
else()
if (l MATCHES "^-")
# If it's an option, pass it without changes.
set(SYSTEM_LIBS ${SYSTEM_LIBS} "${l}")
else()
# Otherwise assume it's a library name we need to link with.
set(SYSTEM_LIBS ${SYSTEM_LIBS} "-l${l}")
endif()
endif()
endforeach()
string(REPLACE ";" " " SYSTEM_LIBS "${SYSTEM_LIBS}")
# Fetch target specific compile options, e.g. RTTI option
get_property(COMPILE_FLAGS TARGET llvm-config PROPERTY COMPILE_FLAGS)
# Use configure_file to create BuildVariables.inc.
set(LLVM_SRC_ROOT ${LLVM_MAIN_SRC_DIR})
set(LLVM_OBJ_ROOT ${LLVM_BINARY_DIR})
set(LLVM_CPPFLAGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
set(LLVM_CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
set(LLVM_CXXFLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${COMPILE_FLAGS} ${LLVM_DEFINITIONS}")
set(LLVM_BUILD_SYSTEM cmake)
set(LLVM_HAS_RTTI ${LLVM_CONFIG_HAS_RTTI})
set(LLVM_DYLIB_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX}")
if(LLVM_BUILD_GLOBAL_ISEL)
set(LLVM_HAS_GLOBAL_ISEL "ON")
else()
set(LLVM_HAS_GLOBAL_ISEL "OFF")
endif()
# Use the C++ link flags, since they should be a superset of C link flags.
set(LLVM_LDFLAGS "${CMAKE_CXX_LINK_FLAGS}")
set(LLVM_BUILDMODE ${CMAKE_BUILD_TYPE})
set(LLVM_SYSTEM_LIBS ${SYSTEM_LIBS})
if(BUILD_SHARED_LIBS)
set(LLVM_ENABLE_SHARED ON)
else()
set(LLVM_ENABLE_SHARED OFF)
endif()
string(REPLACE ";" " " LLVM_TARGETS_BUILT "${LLVM_TARGETS_TO_BUILD}")
configure_file(${BUILDVARIABLES_SRCPATH} ${BUILDVARIABLES_OBJPATH} @ONLY)
# Set build-time environment(s).
add_definitions(-DCMAKE_CFG_INTDIR="${CMAKE_CFG_INTDIR}")
# Add the dependency on the generation step.
add_file_dependencies(${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.cpp ${BUILDVARIABLES_OBJPATH})
if(CMAKE_CROSSCOMPILING)
set(${project}_LLVM_CONFIG_EXE "${LLVM_NATIVE_BUILD}/bin/llvm-config")
set(${project}_LLVM_CONFIG_EXE ${${project}_LLVM_CONFIG_EXE} PARENT_SCOPE)
add_custom_command(OUTPUT "${${project}_LLVM_CONFIG_EXE}"
COMMAND ${CMAKE_COMMAND} --build . --target llvm-config --config $<CONFIGURATION>
DEPENDS ${LLVM_NATIVE_BUILD}/CMakeCache.txt
WORKING_DIRECTORY ${LLVM_NATIVE_BUILD}
COMMENT "Building native llvm-config..."
USES_TERMINAL)
add_custom_target(${project}NativeLLVMConfig DEPENDS ${${project}_LLVM_CONFIG_EXE})
add_dependencies(${project}NativeLLVMConfig CONFIGURE_LLVM_NATIVE)
add_dependencies(llvm-config ${project}NativeLLVMConfig)
endif(CMAKE_CROSSCOMPILING)