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Differential D144395

[runtimes] Move common functions from Handle{Libcxx,Libcxxabi,Libunwind}Flags.cmake to runtimes/cmake/Modules/HandleFlags.cmake
ClosedPublic

Authored by philnik on Feb 20 2023, 7:34 AM.

Details

Reviewers
ldionne
phosek
Group Reviewers
Restricted Project
Restricted Project
Restricted Project
Commits
rG0af67d167d6c: [runtimes] Move common functions from Handle{Libcxx,Libcxxabi,Libunwind}Flags.

Diff Detail

Event Timeline

philnik created this revision.Feb 20 2023, 7:34 AM
Herald added projects: Restricted Project, Restricted Project. · View Herald TranscriptFeb 20 2023, 7:34 AM
Herald added a reviewer: Restricted Project. · View Herald Transcript
Herald added a subscriber: libcxx-commits. · View Herald Transcript
philnik requested review of this revision.Feb 20 2023, 7:34 AM
Herald added projects: Restricted Project, Restricted Project. · View Herald TranscriptFeb 20 2023, 7:34 AM
Herald added a reviewer: Restricted Project. · View Herald Transcript
Herald added a reviewer: Restricted Project. · View Herald Transcript
philnik added a child revision: D144398: [runtimes] Remove add_target_flags* functions and use add_flags* instead.Feb 20 2023, 7:48 AM
Harbormaster completed remote builds in B214765: Diff 498849.Feb 20 2023, 9:32 AM
arichardson added a subscriber: arichardson.Feb 20 2023, 10:39 AM
arichardson added inline comments.
runtimes/cmake/Modules/HandleFlags.cmake
45

Is there a reason that this appends twice?

philnik added inline comments.Feb 20 2023, 1:08 PM
runtimes/cmake/Modules/HandleFlags.cmake
45

No idea, but it's been that way already.

phosek accepted this revision.Feb 20 2023, 2:21 PM

LGTM

libunwind/cmake/Modules/HandleLibunwindFlags.cmake
280–283

This could be removed as well.

philnik accepted this revision as: Restricted Project.Feb 21 2023, 4:14 AM
philnik marked an inline comment as done.
This revision is now accepted and ready to land.Feb 21 2023, 4:14 AM
This revision was landed with ongoing or failed builds.Feb 21 2023, 4:15 AM
Closed by commit rG0af67d167d6c: [runtimes] Move common functions from Handle{Libcxx,Libcxxabi,Libunwind}Flags. (authored by philnik). · Explain Why
This revision was automatically updated to reflect the committed changes.
philnik added a commit: rG0af67d167d6c: [runtimes] Move common functions from Handle{Libcxx,Libcxxabi,Libunwind}Flags..

Revision Contents

PathSize
libcxx/
1 line
cmake/
Modules/
111 lines
libcxxabi/
1 line
cmake/
Modules/
113 lines
libunwind/
1 line
cmake/
Modules/
113 lines
runtimes/
cmake/
Modules/
113 lines

Diff 499109

libcxx/CMakeLists.txt

# See https://libcxx.llvm.org/docs/BuildingLibcxx.html for instructions on how # See https://libcxx.llvm.org/docs/BuildingLibcxx.html for instructions on how
# to build libcxx with CMake. # to build libcxx with CMake.
#=============================================================================== #===============================================================================
# Setup Project # Setup Project
#=============================================================================== #===============================================================================
cmake_minimum_required(VERSION 3.13.4) cmake_minimum_required(VERSION 3.13.4)
set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake") set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
# Add path for custom modules # Add path for custom modules
list(INSERT CMAKE_MODULE_PATH 0 list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake" "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
"${CMAKE_CURRENT_SOURCE_DIR}/../runtimes/cmake/Modules"
"${LLVM_COMMON_CMAKE_UTILS}" "${LLVM_COMMON_CMAKE_UTILS}"
"${LLVM_COMMON_CMAKE_UTILS}/Modules" "${LLVM_COMMON_CMAKE_UTILS}/Modules"
) )
set(CMAKE_FOLDER "libc++") set(CMAKE_FOLDER "libc++")
set(LIBCXX_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(LIBCXX_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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libcxx/cmake/Modules/HandleLibcxxFlags.cmake

# HandleLibcxxFlags - A set of macros used to setup the flags used to compile # HandleLibcxxFlags - A set of macros used to setup the flags used to compile
# and link libc++. These macros add flags to the following CMake variables. # and link libc++. These macros add flags to the following CMake variables.
# - LIBCXX_COMPILE_FLAGS: flags used to compile libc++ # - LIBCXX_COMPILE_FLAGS: flags used to compile libc++
# - LIBCXX_LINK_FLAGS: flags used to link libc++ # - LIBCXX_LINK_FLAGS: flags used to link libc++
# - LIBCXX_LIBRARIES: libraries to link libc++ to. # - LIBCXX_LIBRARIES: libraries to link libc++ to.
include(CheckCXXCompilerFlag) include(CheckCXXCompilerFlag)
include(HandleFlags)
unset(add_flag_if_supported) 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 ":" "_COLON_" 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)
endif()
endmacro()
macro(config_define_if_not condition def)
if (NOT ${condition})
set(${def} ON)
endif()
endmacro()
macro(config_define value def)
set(${def} ${value})
endmacro()
# Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS', # Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS',
# 'LIBCXX_COMPILE_FLAGS' and 'LIBCXX_LINK_FLAGS'. # 'LIBCXX_COMPILE_FLAGS' and 'LIBCXX_LINK_FLAGS'.
macro(add_target_flags) macro(add_target_flags)
foreach(value ${ARGN}) foreach(value ${ARGN})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}")
list(APPEND LIBCXX_COMPILE_FLAGS ${value}) list(APPEND LIBCXX_COMPILE_FLAGS ${value})
list(APPEND LIBCXX_LINK_FLAGS ${value}) list(APPEND LIBCXX_LINK_FLAGS ${value})
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# if 'condition' is true then add the specified list of libraries and flags # if 'condition' is true then add the specified list of libraries and flags
# to 'LIBCXX_LIBRARIES'. # to 'LIBCXX_LIBRARIES'.
macro(add_library_flags_if condition) macro(add_library_flags_if condition)
if(${condition}) if(${condition})
add_library_flags(${ARGN}) add_library_flags(${ARGN})
endif() endif()
endmacro() 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 link flag to the provided target. # For each specified flag, add that link flag to the provided target.
# The flags are added with the given visibility, i.e. PUBLIC|PRIVATE|INTERFACE. # The flags are added with the given visibility, i.e. PUBLIC|PRIVATE|INTERFACE.
function(target_add_link_flags_if_supported target visibility) function(target_add_link_flags_if_supported target visibility)
foreach(flag ${ARGN}) foreach(flag ${ARGN})
mangle_name("${flag}" flagname) mangle_name("${flag}" flagname)
check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG") check_cxx_compiler_flag("${flag}" "CXX_SUPPORTS_${flagname}_FLAG")
if (CXX_SUPPORTS_${flagname}_FLAG) if (CXX_SUPPORTS_${flagname}_FLAG)
target_link_libraries(${target} ${visibility} ${flag}) target_link_libraries(${target} ${visibility} ${flag})
endif() endif()
endforeach() endforeach()
endfunction() endfunction()
# 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()

libcxxabi/CMakeLists.txt

# See www/CMake.html for instructions on how to build libcxxabi with CMake. # See www/CMake.html for instructions on how to build libcxxabi with CMake.
#=============================================================================== #===============================================================================
# Setup Project # Setup Project
#=============================================================================== #===============================================================================
cmake_minimum_required(VERSION 3.13.4) cmake_minimum_required(VERSION 3.13.4)
set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake") set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
# Add path for custom modules # Add path for custom modules
list(INSERT CMAKE_MODULE_PATH 0 list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake" "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
"${CMAKE_CURRENT_SOURCE_DIR}/../runtimes/cmake/Modules"
"${LLVM_COMMON_CMAKE_UTILS}" "${LLVM_COMMON_CMAKE_UTILS}"
"${LLVM_COMMON_CMAKE_UTILS}/Modules" "${LLVM_COMMON_CMAKE_UTILS}/Modules"
) )
set(CMAKE_FOLDER "libc++") set(CMAKE_FOLDER "libc++")
set(LIBCXXABI_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(LIBCXXABI_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(LIBCXXABI_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(LIBCXXABI_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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libcxxabi/cmake/Modules/HandleLibcxxabiFlags.cmake

# HandleLibcxxFlags - A set of macros used to setup the flags used to compile # 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. # and link libc++abi. These macros add flags to the following CMake variables.
# - LIBCXXABI_COMPILE_FLAGS: flags used to compile libc++abi # - LIBCXXABI_COMPILE_FLAGS: flags used to compile libc++abi
# - LIBCXXABI_LINK_FLAGS: flags used to link libc++abi # - LIBCXXABI_LINK_FLAGS: flags used to link libc++abi
# - LIBCXXABI_LIBRARIES: libraries to link libc++abi to. # - LIBCXXABI_LIBRARIES: libraries to link libc++abi to.
include(CheckCXXCompilerFlag) include(CheckCXXCompilerFlag)
include(HandleFlags)
unset(add_flag_if_supported) 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', # Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS',
# 'LIBCXXABI_COMPILE_FLAGS' and 'LIBCXXABI_LINK_FLAGS'. # 'LIBCXXABI_COMPILE_FLAGS' and 'LIBCXXABI_LINK_FLAGS'.
macro(add_target_flags) macro(add_target_flags)
foreach(value ${ARGN}) foreach(value ${ARGN})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}")
list(APPEND LIBCXXABI_COMPILE_FLAGS ${value}) list(APPEND LIBCXXABI_COMPILE_FLAGS ${value})
list(APPEND LIBCXXABI_LINK_FLAGS ${value}) list(APPEND LIBCXXABI_LINK_FLAGS ${value})
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# if 'condition' is true then add the specified list of libraries and flags # if 'condition' is true then add the specified list of libraries and flags
# to 'LIBCXXABI_LIBRARIES'. # to 'LIBCXXABI_LIBRARIES'.
macro(add_library_flags_if condition) macro(add_library_flags_if condition)
if(${condition}) if(${condition})
add_library_flags(${ARGN}) add_library_flags(${ARGN})
endif() endif()
endmacro() 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()

libunwind/CMakeLists.txt

#=============================================================================== #===============================================================================
# Setup Project # Setup Project
#=============================================================================== #===============================================================================
cmake_minimum_required(VERSION 3.13.4) cmake_minimum_required(VERSION 3.13.4)
set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake") set(LLVM_COMMON_CMAKE_UTILS "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
# Add path for custom modules # Add path for custom modules
list(INSERT CMAKE_MODULE_PATH 0 list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake" "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
"${CMAKE_CURRENT_SOURCE_DIR}/../runtimes/cmake/Modules"
"${LLVM_COMMON_CMAKE_UTILS}" "${LLVM_COMMON_CMAKE_UTILS}"
"${LLVM_COMMON_CMAKE_UTILS}/Modules" "${LLVM_COMMON_CMAKE_UTILS}/Modules"
) )
set(LIBUNWIND_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) set(LIBUNWIND_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(LIBUNWIND_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(LIBUNWIND_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
set(LIBUNWIND_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH set(LIBUNWIND_LIBCXX_PATH "${CMAKE_CURRENT_LIST_DIR}/../libcxx" CACHE PATH
"Specify path to libc++ source.") "Specify path to libc++ source.")
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libunwind/cmake/Modules/HandleLibunwindFlags.cmake

# HandleLibcxxFlags - A set of macros used to setup the flags used to compile # 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. # and link libc++abi. These macros add flags to the following CMake variables.
# - LIBUNWIND_COMPILE_FLAGS: flags used to compile libunwind # - LIBUNWIND_COMPILE_FLAGS: flags used to compile libunwind
# - LIBUNWIND_LINK_FLAGS: flags used to link libunwind # - LIBUNWIND_LINK_FLAGS: flags used to link libunwind
# - LIBUNWIND_LIBRARIES: libraries to link libunwind to. # - LIBUNWIND_LIBRARIES: libraries to link libunwind to.
include(CheckCCompilerFlag) include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag) include(CheckCXXCompilerFlag)
include(HandleFlags)
unset(add_flag_if_supported) 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(LIBUNWIND_NEEDS_SITE_CONFIG ON)
endif()
endmacro()
macro(config_define_if_not condition def)
if (NOT ${condition})
set(${def} ON)
set(LIBUNWIND_NEEDS_SITE_CONFIG ON)
endif()
endmacro()
macro(config_define value def)
set(${def} ${value})
set(LIBUNWIND_NEEDS_SITE_CONFIG ON)
endmacro()
# Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS', # Add a list of flags to all of 'CMAKE_CXX_FLAGS', 'CMAKE_C_FLAGS',
# 'LIBUNWIND_COMPILE_FLAGS' and 'LIBUNWIND_LINK_FLAGS'. # 'LIBUNWIND_COMPILE_FLAGS' and 'LIBUNWIND_LINK_FLAGS'.
macro(add_target_flags) macro(add_target_flags)
foreach(value ${ARGN}) foreach(value ${ARGN})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}") set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${value}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}") set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${value}")
list(APPEND LIBUNWIND_COMPILE_FLAGS ${value}) list(APPEND LIBUNWIND_COMPILE_FLAGS ${value})
list(APPEND LIBUNWIND_LINK_FLAGS ${value}) list(APPEND LIBUNWIND_LINK_FLAGS ${value})
▲ Show 20 Lines • Show All 156 Lines • ▼ Show 20 Lines
# if 'condition' is true then add the specified list of libraries and flags # if 'condition' is true then add the specified list of libraries and flags
# to 'LIBUNWIND_LIBRARIES'. # to 'LIBUNWIND_LIBRARIES'.
macro(add_library_flags_if condition) macro(add_library_flags_if condition)
if(${condition}) if(${condition})
add_library_flags(${ARGN}) add_library_flags(${ARGN})
endif() endif()
endmacro() endmacro()
# Turn a comma separated CMake list into a space separated string.
macro(split_list listname)
string(REPLACE ";" " " ${listname} "${${listname}}")
endmacro()
phosekUnsubmitted
Done
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This could be removed as well.

phosek: This could be removed as well.
# 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()

runtimes/cmake/Modules/HandleFlags.cmake

  • This file was added.
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})
arichardsonUnsubmitted
Not Done
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Is there a reason that this appends twice?

arichardson: Is there a reason that this appends twice?
philnikAuthorUnsubmitted
Done
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No idea, but it's been that way already.

philnik: No idea, but it's been that way already.
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)
endif()
endmacro()
macro(config_define_if_not condition def)
if (NOT ${condition})
set(${def} ON)
endif()
endmacro()
macro(config_define value def)
set(${def} ${value})
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()