forked from OSchip/llvm-project
255 lines
8.5 KiB
CMake
255 lines
8.5 KiB
CMake
# HandleLibcxxFlags - A set of macros used to setup the flags used to compile
|
|
# and link libc++abi. These macros add flags to the following CMake variables.
|
|
# - LIBCXXABI_COMPILE_FLAGS: flags used to compile libc++abi
|
|
# - LIBCXXABI_LINK_FLAGS: flags used to link libc++abi
|
|
# - LIBCXXABI_LIBRARIES: libraries to link libc++abi to.
|
|
|
|
include(CheckCXXCompilerFlag)
|
|
|
|
unset(add_flag_if_supported)
|
|
|
|
# Mangle the name of a compiler flag into a valid CMake identifier.
|
|
# Ex: --std=c++11 -> STD_EQ_CXX11
|
|
macro(mangle_name str output)
|
|
string(STRIP "${str}" strippedStr)
|
|
string(REGEX REPLACE "^/" "" strippedStr "${strippedStr}")
|
|
string(REGEX REPLACE "^-+" "" strippedStr "${strippedStr}")
|
|
string(REGEX REPLACE "-+$" "" strippedStr "${strippedStr}")
|
|
string(REPLACE "-" "_" strippedStr "${strippedStr}")
|
|
string(REPLACE "=" "_EQ_" strippedStr "${strippedStr}")
|
|
string(REPLACE "+" "X" strippedStr "${strippedStr}")
|
|
string(TOUPPER "${strippedStr}" ${output})
|
|
endmacro()
|
|
|
|
# Remove a list of flags from all CMake variables that affect compile flags.
|
|
# This can be used to remove unwanted flags specified on the command line
|
|
# or added in other parts of LLVM's cmake configuration.
|
|
macro(remove_flags)
|
|
foreach(var ${ARGN})
|
|
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}")
|
|
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}")
|
|
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}")
|
|
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
|
|
string(REPLACE "${var}" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
|
|
string(REPLACE "${var}" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
|
|
string(REPLACE "${var}" "" CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
|
|
string(REPLACE "${var}" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
|
|
string(REPLACE "${var}" "" CMAKE_SHARED_MODULE_FLAGS "${CMAKE_SHARED_MODULE_FLAGS}")
|
|
remove_definitions(${var})
|
|
endforeach()
|
|
endmacro(remove_flags)
|
|
|
|
macro(check_flag_supported flag)
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
endmacro()
|
|
|
|
macro(append_flags DEST)
|
|
foreach(value ${ARGN})
|
|
list(APPEND ${DEST} ${value})
|
|
list(APPEND ${DEST} ${value})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# If the specified 'condition' is true then append the specified list of flags to DEST
|
|
macro(append_flags_if condition DEST)
|
|
if (${condition})
|
|
list(APPEND ${DEST} ${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Add each flag in the list specified by DEST if that flag is supported by the current compiler.
|
|
macro(append_flags_if_supported DEST)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
append_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${DEST} ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# Add a macro definition if condition is true.
|
|
macro(define_if condition def)
|
|
if (${condition})
|
|
add_definitions(${def})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Add a macro definition if condition is not true.
|
|
macro(define_if_not condition def)
|
|
if (NOT ${condition})
|
|
add_definitions(${def})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Add a macro definition to the __config_site file if the specified condition
|
|
# is 'true'. Note that '-D${def}' is not added. Instead it is expected that
|
|
# the build include the '__config_site' header.
|
|
macro(config_define_if condition def)
|
|
if (${condition})
|
|
set(${def} ON)
|
|
set(LIBCXXABI_NEEDS_SITE_CONFIG ON)
|
|
endif()
|
|
endmacro()
|
|
|
|
macro(config_define_if_not condition def)
|
|
if (NOT ${condition})
|
|
set(${def} ON)
|
|
set(LIBCXXABI_NEEDS_SITE_CONFIG ON)
|
|
endif()
|
|
endmacro()
|
|
|
|
macro(config_define value def)
|
|
set(${def} ${value})
|
|
set(LIBCXXABI_NEEDS_SITE_CONFIG ON)
|
|
endmacro()
|
|
|
|
# Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS',
|
|
# 'LIBCXXABI_COMPILE_FLAGS' and 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_target_flags)
|
|
foreach(value ${ARGN})
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}")
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}")
|
|
list(APPEND LIBCXXABI_COMPILE_FLAGS ${value})
|
|
list(APPEND LIBCXXABI_LINK_FLAGS ${value})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# If the specified 'condition' is true then add a list of flags to
|
|
# all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS', 'LIBCXXABI_COMPILE_FLAGS'
|
|
# and 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_target_flags_if condition)
|
|
if (${condition})
|
|
add_target_flags(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Add all the flags supported by the compiler to all of
|
|
# 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS', 'LIBCXXABI_COMPILE_FLAGS'
|
|
# and 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_target_flags_if_supported)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
add_target_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# Add a specified list of flags to both 'LIBCXXABI_COMPILE_FLAGS' and
|
|
# 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_flags)
|
|
foreach(value ${ARGN})
|
|
list(APPEND LIBCXXABI_COMPILE_FLAGS ${value})
|
|
list(APPEND LIBCXXABI_LINK_FLAGS ${value})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# If the specified 'condition' is true then add a list of flags to both
|
|
# 'LIBCXXABI_COMPILE_FLAGS' and 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_flags_if condition)
|
|
if (${condition})
|
|
add_flags(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Add each flag in the list to LIBCXXABI_COMPILE_FLAGS and LIBCXXABI_LINK_FLAGS
|
|
# if that flag is supported by the current compiler.
|
|
macro(add_flags_if_supported)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
add_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# Add a list of flags to 'LIBCXXABI_COMPILE_FLAGS'.
|
|
macro(add_compile_flags)
|
|
foreach(f ${ARGN})
|
|
list(APPEND LIBCXXABI_COMPILE_FLAGS ${f})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# If 'condition' is true then add the specified list of flags to
|
|
# 'LIBCXXABI_COMPILE_FLAGS'
|
|
macro(add_compile_flags_if condition)
|
|
if (${condition})
|
|
add_compile_flags(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# For each specified flag, add that flag to 'LIBCXXABI_COMPILE_FLAGS' if the
|
|
# flag is supported by the C++ compiler.
|
|
macro(add_compile_flags_if_supported)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
add_compile_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# For each specified flag, add that flag to 'LIBCXXABI_COMPILE_FLAGS' if the
|
|
# flag is supported by the C compiler.
|
|
macro(add_c_compile_flags_if_supported)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_c_compiler_flag("${flag}" "C_SUPPORTS_${flagname}_FLAG")
|
|
add_compile_flags_if(C_SUPPORTS_${flagname}_FLAG ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# Add a list of flags to 'LIBCXXABI_LINK_FLAGS'.
|
|
macro(add_link_flags)
|
|
foreach(f ${ARGN})
|
|
list(APPEND LIBCXXABI_LINK_FLAGS ${f})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# If 'condition' is true then add the specified list of flags to
|
|
# 'LIBCXXABI_LINK_FLAGS'
|
|
macro(add_link_flags_if condition)
|
|
if (${condition})
|
|
add_link_flags(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# For each specified flag, add that flag to 'LIBCXXABI_LINK_FLAGS' if the
|
|
# flag is supported by the C++ compiler.
|
|
macro(add_link_flags_if_supported)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
add_link_flags_if(CXX_SUPPORTS_${flagname}_FLAG ${flag})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# Add a list of libraries or link flags to 'LIBCXXABI_LIBRARIES'.
|
|
macro(add_library_flags)
|
|
foreach(lib ${ARGN})
|
|
list(APPEND LIBCXXABI_LIBRARIES ${lib})
|
|
endforeach()
|
|
endmacro()
|
|
|
|
# if 'condition' is true then add the specified list of libraries and flags
|
|
# to 'LIBCXXABI_LIBRARIES'.
|
|
macro(add_library_flags_if condition)
|
|
if(${condition})
|
|
add_library_flags(${ARGN})
|
|
endif()
|
|
endmacro()
|
|
|
|
# Turn a comma separated CMake list into a space separated string.
|
|
macro(split_list listname)
|
|
string(REPLACE ";" " " ${listname} "${${listname}}")
|
|
endmacro()
|
|
|
|
# For each specified flag, add that compile flag to the provided target.
|
|
# The flags are added with the given visibility, i.e. PUBLIC|PRIVATE|INTERFACE.
|
|
function(target_add_compile_flags_if_supported target visibility)
|
|
foreach(flag ${ARGN})
|
|
mangle_name("${flag}" flagname)
|
|
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
|
|
if (CXX_SUPPORTS_${flagname}_FLAG)
|
|
target_compile_options(${target} ${visibility} ${flag})
|
|
endif()
|
|
endforeach()
|
|
endfunction()
|