CompilerRTUtils.cmake [plain text]
# Because compiler-rt spends a lot of time setting up custom compile flags,
# define a handy helper function for it. The compile flags setting in CMake
# has serious issues that make its syntax challenging at best.
function(set_target_compile_flags target)
set(argstring "")
foreach(arg ${ARGN})
set(argstring "${argstring} ${arg}")
endforeach()
set_property(TARGET ${target} PROPERTY COMPILE_FLAGS "${argstring}")
endfunction()
function(set_target_link_flags target)
set(argstring "")
foreach(arg ${ARGN})
set(argstring "${argstring} ${arg}")
endforeach()
set_property(TARGET ${target} PROPERTY LINK_FLAGS "${argstring}")
endfunction()
# Set the variable var_PYBOOL to True if var holds a true-ish string,
# otherwise set it to False.
macro(pythonize_bool var)
if (${var})
set(${var}_PYBOOL True)
else()
set(${var}_PYBOOL False)
endif()
endmacro()
# Appends value to all lists in ARGN, if the condition is true.
macro(append_list_if condition value)
if(${condition})
foreach(list ${ARGN})
list(APPEND ${list} ${value})
endforeach()
endif()
endmacro()
# Appends value to all strings in ARGN, if the condition is true.
macro(append_string_if condition value)
if(${condition})
foreach(str ${ARGN})
set(${str} "${${str}} ${value}")
endforeach()
endif()
endmacro()
macro(append_no_rtti_flag list)
append_list_if(COMPILER_RT_HAS_FNO_RTTI_FLAG -fno-rtti ${list})
append_list_if(COMPILER_RT_HAS_GR_FLAG /GR- ${list})
endmacro()
function(TO_LIST_SPACES _LIST_NAME OUTPUT_VAR)
set(NEW_LIST_SPACE)
foreach(ITEM ${${_LIST_NAME}})
set(NEW_LIST_SPACE "${NEW_LIST_SPACE} ${ITEM}")
endforeach()
string(STRIP ${NEW_LIST_SPACE} NEW_LIST_SPACE)
set(${OUTPUT_VAR} "${NEW_LIST_SPACE}" PARENT_SCOPE)
endfunction()
macro(darwin_drop_unsupported_arches os)
set(SIMPLE_SOURCE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/simple.cc)
file(WRITE ${SIMPLE_SOURCE} "#include <stdlib.h>\n#include <limits>\n#include <stdint.h>\n#include <stdio.h>\nint main() {}\n")
set(WORKING_ARCHES)
foreach(arch ${SANITIZER_COMMON_DARWIN_${os}_ARCHES})
set(arch_linker_flags "-arch ${arch}" "${DARWIN_${os}_LINKFLAGS}")
TO_LIST_SPACES(arch_linker_flags arch_linker_flags)
try_compile(CAN_TARGET_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE}
COMPILE_DEFINITIONS "${TARGET_${arch}_CFLAGS} -arch ${arch}" ${DARWIN_${os}_CFLAGS}
OUTPUT_VARIABLE TARGET_${arch}_OUTPUT
CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS=${arch_linker_flags}")
if(${CAN_TARGET_${arch}})
list(APPEND WORKING_ARCHES ${arch})
else()
message("dropping ${arch} from ${os}...")
endif()
endforeach()
set(SANITIZER_COMMON_DARWIN_${os}_ARCHES ${WORKING_ARCHES})
endmacro()