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Differential D11308

[libcxx] Cleanup CMake configuration and integrate with LLVM
ClosedPublic

Authored by EricWF on Jul 17 2015, 1:06 PM.

Details

Reviewers
mclow.lists
danalbert
jroelofs
Commits
rG7eb30deff17e: [libcxx] Cleanup CMake configuration and integrate with LLVM
rCXX243503: [libcxx] Cleanup CMake configuration and integrate with LLVM
rL243503: [libcxx] Cleanup CMake configuration and integrate with LLVM
Summary

This patch contains the following changes:

  1. Require that libc++ can find a LLVM source directory. This is done the same way as libc++abi currently does.
  2. Cleanup ugly configuration code in CMakeLists.txt by using add_flags, add_flags_if, and add_flags_if_supported macros.

The goals for this patch are:

  1. Help libc++ be more consistent with how LLVM handles CMake options (see PR23670 PR23671).
  2. Make it easier to use sanitizers using the LLVM_USE_SANITIZER option.
  3. Make libc++'s CMakeLists.txt file easier to understand and change.
  4. Move towards allowing libc++ to create Sphinx documentation (see http://efcs.ca/libcxx-docs).
  5. Move towards allowing libc++ to use other LLVM utilities such as not and FileCheck.

Diff Detail

Event Timeline

EricWF updated this revision to Diff 30022.Jul 17 2015, 1:06 PM
EricWF retitled this revision from to [libcxx] Cleanup CMake configuration and integrate with LLVM.
EricWF updated this object.
EricWF added reviewers: mclow.lists, danalbert, jroelofs.
EricWF mentioned this in D10055: [libcxx] Require LLVM in libc++'s CMake..
EricWF added a subscriber: cfe-commits.
EricWF updated this revision to Diff 30025.Jul 17 2015, 1:11 PM

Add comments in HandleLibcxxFlags.cmake.

EricWF updated this revision to Diff 30203.Jul 20 2015, 3:38 PM

Update so that the patch applies cleanly to master.

danalbert added inline comments.Jul 28 2015, 10:47 AM
CMakeLists.txt
64

Nit: the other descriptions end with a period

105

This sentence doesn't make sense. "Set foo to bar is on..." ?

EricWF updated this revision to Diff 30841.Jul 28 2015, 12:14 PM
EricWF marked 2 inline comments as done.

Address @danalbert's comments.

danalbert accepted this revision.Jul 28 2015, 1:09 PM
danalbert edited edge metadata.

LGTM.

This revision is now accepted and ready to land.Jul 28 2015, 1:09 PM
EricWF closed this revision.Jul 28 2015, 5:04 PM

Revision Contents

PathSize
363 lines
cmake/
Modules/
79 lines
15 lines
147 lines
19 lines
lib/
68 lines
test/
121 lines
1 line
www/
20 lines

Diff 30841

CMakeLists.txt

Context not available.
build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there." build directory and run 'cmake /path/to/${PROJECT_NAME} [options]' there."
) )
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) # Find the required bits of LLVM
set(LIBCXX_LIBDIR_SUFFIX "" CACHE STRING include(FindLLVM)
"Define suffix of library directory name (32/64)") # Include the LLVM CMake functions.
include(AddLLVM)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
set(LIBCXX_BUILT_STANDALONE 1)
else()
set(LIBCXX_LIBDIR_SUFFIX ${LLVM_LIBDIR_SUFFIX})
endif()
#=============================================================================== #===============================================================================
# Setup CMake Options # Setup CMake Options
#=============================================================================== #===============================================================================
# Define options. # Basic options ---------------------------------------------------------------
option(LIBCXX_ENABLE_EXCEPTIONS "Use exceptions." ON)
option(LIBCXX_ENABLE_RTTI "Use run time type information." ON)
option(LIBCXX_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) option(LIBCXX_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON)
option(LIBCXX_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LIBCXX_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
option(LIBCXX_ENABLE_CXX1Y "Enable -std=c++1y and use of c++1y language features if the compiler supports it." OFF)
option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON) option(LIBCXX_ENABLE_SHARED "Build libc++ as a shared library." ON)
set(LIBCXX_LIBDIR_SUFFIX "${LLVM_LIBDIR_SUFFIX}" CACHE STRING
"Define suffix of library directory name (32/64)")
option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers." ON)
# ABI Library options ---------------------------------------------------------
set(LIBCXX_CXX_ABI "${LIBCXX_CXX_ABI}" CACHE STRING
"Specify C++ ABI library to use." FORCE)
set(CXXABIS none libcxxabi libcxxrt libstdc++ libsupc++)
set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
option(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "Statically link the ABI library" OFF)
# Build libc++abi with libunwind. We need this option to determine whether to
# link with libunwind or libgcc_s while running the test cases.
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF)
# Target options --------------------------------------------------------------
option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++." OFF)
danalbertUnsubmitted
Done
ReplyInline Actions

Nit: the other descriptions end with a period

danalbert: Nit: the other descriptions end with a period
set(LIBCXX_SYSROOT "" CACHE STRING "Use alternate sysroot.")
set(LIBCXX_GCC_TOOLCHAIN "" CACHE STRING "Use alternate GCC toolchain.")
# Feature options -------------------------------------------------------------
option(LIBCXX_ENABLE_EXCEPTIONS "Use exceptions." ON)
option(LIBCXX_ENABLE_RTTI "Use run time type information." ON)
option(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE "Build libc++ with support for the global filesystem namespace." ON) option(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE "Build libc++ with support for the global filesystem namespace." ON)
option(LIBCXX_ENABLE_STDIN "Build libc++ with support for stdin/std::cin." ON) option(LIBCXX_ENABLE_STDIN "Build libc++ with support for stdin/std::cin." ON)
option(LIBCXX_ENABLE_STDOUT "Build libc++ with support for stdout/std::cout." ON) option(LIBCXX_ENABLE_STDOUT "Build libc++ with support for stdout/std::cout." ON)
option(LIBCXX_ENABLE_THREADS "Build libc++ with support for threads." ON) option(LIBCXX_ENABLE_THREADS "Build libc++ with support for threads." ON)
option(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS "Build libc++ with support for thread-unsafe C functions" ON) option(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS "Build libc++ with support for thread-unsafe C functions" ON)
option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++" OFF)
option(LIBCXX_ENABLE_MONOTONIC_CLOCK option(LIBCXX_ENABLE_MONOTONIC_CLOCK
"Build libc++ with support for a monotonic clock. "Build libc++ with support for a monotonic clock.
This option may only be used when LIBCXX_ENABLE_THREADS=OFF." ON) This option may only be used when LIBCXX_ENABLE_THREADS=OFF." ON)
option(LIBCXX_INSTALL_HEADERS "Install the libc++ headers." ON)
option(LIBCXX_INSTALL_SUPPORT_HEADERS "Install libc++ support headers." ON) # Misc options ----------------------------------------------------------------
option(LIBCXX_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LIBCXX_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
option(LIBCXX_GENERATE_COVERAGE "Enable generating code coverage." OFF) option(LIBCXX_GENERATE_COVERAGE "Enable generating code coverage." OFF)
set(LIBCXX_COVERAGE_LIBRARY "" CACHE STRING set(LIBCXX_COVERAGE_LIBRARY "" CACHE STRING
"The Profile-rt library used to build with code coverage") "The Profile-rt library used to build with code coverage")
option(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "Statically link the ABI library" OFF)
set(LIBCXX_SYSROOT "" CACHE STRING "Use alternate sysroot.") #===============================================================================
set(LIBCXX_GCC_TOOLCHAIN "" CACHE STRING "Use alternate GCC toolchain.") # Check option configurations
if (LIBCXX_BUILT_STANDALONE) #===============================================================================
set(LLVM_USE_SANITIZER "" CACHE STRING
"Define the sanitizer used to build the library and tests") # Ensure LIBCXX_ENABLE_MONOTONIC_CLOCK is set to ON only when
# LIBCXX_ENABLE_THREADS is on.
if(LIBCXX_ENABLE_THREADS AND NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
message(FATAL_ERROR "LIBCXX_ENABLE_MONOTONIC_CLOCK can only be set to OFF"
" when LIBCXX_ENABLE_THREADS is also set to OFF.")
endif()
# Ensure LLVM_USE_SANITIZER is not specified when LIBCXX_GENERATE_COVERAGE
# is ON.
if (LLVM_USE_SANITIZER AND LIBCXX_GENERATE_COVERAGE)
message(FATAL_ERROR "LLVM_USE_SANITIZER cannot be used with LIBCXX_GENERATE_COVERAGE")
endif() endif()
# Set LIBCXX_BUILD_32_BITS to (LIBCXX_BUILD_32_BITS OR LLVM_BUILD_32_BITS)
danalbertUnsubmitted
Done
ReplyInline Actions

This sentence doesn't make sense. "Set foo to bar is on..." ?

danalbert: This sentence doesn't make sense. "Set foo to bar is on..." ?
# and check that we can build with 32 bits if requested.
if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32)
if (LIBCXX_BUILD_32_BITS OR LLVM_BUILD_32_BITS)
if (NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM
message(STATUS "Building 32 bits executables and libraries.")
endif()
set(LIBCXX_BUILD_32_BITS ON CACHE BOOL "" FORCE)
endif()
elseif(LIBCXX_BUILD_32_BITS)
message(FATAL_ERROR "LIBCXX_BUILD_32_BITS=ON is not supported on this platform.")
endif()
# Check that this option is not enabled on Apple and emit a usage warning.
if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY) if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
if (APPLE) if (APPLE)
message(FATAL_ERROR "LIBCXX_ENABLE_STATIC_ABI_LIBRARY is not supported on OS X") message(FATAL_ERROR "LIBCXX_ENABLE_STATIC_ABI_LIBRARY is not supported on OS X")
Context not available.
endif() endif()
endif() endif()
set(CXXABIS none libcxxabi libcxxrt libstdc++ libsupc++)
if (NOT LIBCXX_CXX_ABI)
if (NOT DEFINED LIBCXX_BUILT_STANDALONE AND
IS_DIRECTORY "${CMAKE_SOURCE_DIR}/projects/libcxxabi")
set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${CMAKE_SOURCE_DIR}/projects/libcxxabi/include")
set(LIBCXX_CXX_ABI_INTREE 1)
else ()
set(LIBCXX_CXX_ABI_LIBNAME "none")
endif ()
else ()
set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}")
endif ()
set(LIBCXX_CXX_ABI "${LIBCXX_CXX_ABI}" CACHE STRING
"Specify C++ ABI library to use." FORCE)
set_property(CACHE LIBCXX_CXX_ABI PROPERTY STRINGS ;${CXXABIS})
# Build libc++abi with libunwind. We need this option to determine whether to
# link with libunwind or libgcc_s while running the test cases.
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF)
#=============================================================================== #===============================================================================
# Configure System # Configure System
#=============================================================================== #===============================================================================
Context not available.
set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) set(LIBCXX_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX}) set(LIBCXX_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LIBCXX_LIBDIR_SUFFIX})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIBCXX_LIBRARY_DIR})
# Declare libc++ configuration variables. # Declare libc++ configuration variables.
# They are intended for use as follows: # They are intended for use as follows:
# LIBCXX_CXX_FLAGS: General flags for both the compiler and linker. # LIBCXX_CXX_FLAGS: General flags for both the compiler and linker.
# LIBCXX_COMPILE_FLAGS: Compile only flags. # LIBCXX_COMPILE_FLAGS: Compile only flags.
# LIBCXX_LINK_FLAGS: Linker only flags. # LIBCXX_LINK_FLAGS: Linker only flags.
set(LIBCXX_CXX_FLAGS "")
set(LIBCXX_COMPILE_FLAGS "") set(LIBCXX_COMPILE_FLAGS "")
set(LIBCXX_LINK_FLAGS "") set(LIBCXX_LINK_FLAGS "")
set(LIBCXX_LIBRARIES "")
# Configure compiler. # Configure compiler.
include(config-ix) include(config-ix)
# Configure ABI library
include(HandleLibCXXABI)
# Configure coverage options. # Configure coverage options.
if (LIBCXX_GENERATE_COVERAGE) if (LIBCXX_GENERATE_COVERAGE)
include(CodeCoverage) include(CodeCoverage)
set(CMAKE_BUILD_TYPE "COVERAGE" CACHE STRING "" FORCE) set(CMAKE_BUILD_TYPE "COVERAGE" CACHE STRING "" FORCE)
endif() endif()
string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
#=============================================================================== #===============================================================================
# Setup Compiler Flags # Setup Compiler Flags
#=============================================================================== #===============================================================================
include(HandleLLVMOptions) # Setup LLVM flags
# Get required flags. include(HandleLibCXXABI) # Steup the ABI library flags
# On all systems the system c++ standard library headers need to be excluded.
if (MSVC)
# MSVC only has -X, which disables all default includes; including the crt.
# Thus, we do nothing and hope we don't accidentally include any of the C++
# headers.
else()
if (LIBCXX_HAS_NOSTDINCXX_FLAG)
list(APPEND LIBCXX_COMPILE_FLAGS -nostdinc++)
string(REPLACE "-stdlib=libc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
string(REPLACE "-stdlib=libstdc++" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
endif()
# If c++1y has been enabled then attempt to use it. Fail if it is no supported
# by the compiler. Otherwise choose c++11 and ensure the compiler supports it.
if (LIBCXX_ENABLE_CXX1Y)
if (LIBCXX_HAS_STDCXX1Y_FLAG)
set(LIBCXX_STD_VERSION c++1y)
else()
message(FATAL_ERROR "c++1y was enabled but the compiler does not support it.")
endif()
else()
if (LIBCXX_HAS_STDCXX11_FLAG)
set(LIBCXX_STD_VERSION c++11)
else()
message(FATAL_ERROR "c++11 is required by libc++ but is not supported by the compiler")
endif()
endif()
# LIBCXX_STD_VERSION should always be set at this point.
list(APPEND LIBCXX_CXX_FLAGS "-std=${LIBCXX_STD_VERSION}")
endif()
macro(append_if list condition var) # Include macros for adding and removing libc++ flags.
if (${condition}) include(HandleLibcxxFlags)
list(APPEND ${list} ${var})
endif()
endmacro()
# Get warning flags # Remove flags that may have snuck in.
# Disable the system header pragma. remove_flags(-DNDEBUG -UNDEBUG -D_DEBUG
add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -stdlib=libc++ -stdlib=libstdc++ -lc++abi -m32)
if (NOT MSVC)
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WALL_FLAG -Wall) # Required flags ==============================================================
list(APPEND LIBCXX_COMPILE_FLAGS -Werror=return-type) add_compile_flags_if_supported(-std=c++11)
if (NOT MSVC AND NOT LIBCXX_SUPPORTS_STD_EQ_CXX11_FLAG)
message(FATAL_ERROR "C++11 is required but the compiler does not support -std=c++11")
endif() endif()
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_W_FLAG -W) # On all systems the system c++ standard library headers need to be excluded.
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_UNUSED_PARAMETER_FLAG -Wno-unused-parameter) # MSVC only has -X, which disables all default includes; including the crt.
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WWRITE_STRINGS_FLAG -Wwrite-strings) # Thus, we do nothing and hope we don't accidentally include any of the C++
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_LONG_LONG_FLAG -Wno-long-long) # headers
add_compile_flags_if_supported(-nostdinc++)
# Target flags ================================================================
add_flags_if(LIBCXX_BUILD_32_BITS -m32)
add_flags_if(LIBCXX_TARGET_TRIPLE "-target ${LIBCXX_TARGET_TRIPLE}")
add_flags_if(LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
add_flags_if(LIBCXX_GCC_TOOLCHAIN "-gcc-toolchain ${LIBCXX_GCC_TOOLCHAIN}")
# Warning flags ===============================================================
add_definitions(-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
add_compile_flags_if_supported(
-Wall -W -Wwrite-strings
-Wno-unused-parameter -Wno-long-long
-Werror=return-type)
if (LIBCXX_ENABLE_WERROR) if (LIBCXX_ENABLE_WERROR)
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WERROR_FLAG -Werror) add_compile_flags_if_supported(-Werror)
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WX_FLAG -WX) add_compile_flags_if_supported(-WX)
else()
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_WNO_ERROR_FLAG -Wno-error)
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_NO_WX_FLAG -WX-)
endif() endif()
if (LIBCXX_ENABLE_PEDANTIC) if (LIBCXX_ENABLE_PEDANTIC)
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_PEDANTIC_FLAG -pedantic) add_compile_flags_if_supported(-pedantic)
endif() endif()
# Get feature flags. # Exception flags =============================================================
# Exceptions
if (LIBCXX_ENABLE_EXCEPTIONS) if (LIBCXX_ENABLE_EXCEPTIONS)
# Catches C++ exceptions only and tells the compiler to assume that extern C # Catches C++ exceptions only and tells the compiler to assume that extern C
# functions never throw a C++ exception. # functions never throw a C++ exception.
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_EHSC_FLAG -EHsc) add_compile_flags_if_supported(-EHsc)
else() else()
list(APPEND LIBCXX_CXX_FLAGS -D_LIBCPP_NO_EXCEPTIONS) add_definitions(-D_LIBCPP_NO_EXCEPTIONS)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_EHS_FLAG -EHs-) add_compile_flags_if_supported(-EHs- -EHa-)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_EHA_FLAG -EHa-) add_compile_flags_if_supported(-fno-exceptions)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions)
endif() endif()
# RTTI
# RTTI flags ==================================================================
if (NOT LIBCXX_ENABLE_RTTI) if (NOT LIBCXX_ENABLE_RTTI)
list(APPEND LIBCXX_CXX_FLAGS -D_LIBCPP_NO_RTTI) add_definitions(-D_LIBCPP_NO_RTTI)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_NO_GR_FLAG -GR-) add_compile_flags_if_supported(-GR-)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_RTTI_FLAG -fno-rtti) add_compile_flags_if_supported(-fno-rtti)
endif() endif()
# Assert
string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) # Assertion flags =============================================================
define_if(LIBCXX_ENABLE_ASSERTIONS -UNDEBUG)
define_if_not(LIBCXX_ENABLE_ASSERTIONS -DNDEBUG)
if (LIBCXX_ENABLE_ASSERTIONS) if (LIBCXX_ENABLE_ASSERTIONS)
# MSVC doesn't like _DEBUG on release builds. See PR 4379. # MSVC doesn't like _DEBUG on release builds. See PR 4379.
if (NOT MSVC) define_if_not(MSVC -D_DEBUG)
list(APPEND LIBCXX_COMPILE_FLAGS -D_DEBUG)
endif()
# On Release builds cmake automatically defines NDEBUG, so we
# explicitly undefine it:
if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
list(APPEND LIBCXX_COMPILE_FLAGS -UNDEBUG)
endif()
else()
if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
list(APPEND LIBCXX_COMPILE_FLAGS -DNDEBUG)
endif()
endif()
# Static library
if (NOT LIBCXX_ENABLE_SHARED)
list(APPEND LIBCXX_COMPILE_FLAGS -D_LIBCPP_BUILD_STATIC)
endif() endif()
if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) # Feature flags ===============================================================
if (LIBCXX_BUILD_32_BITS) define_if(MSVC -D_CRT_SECURE_NO_WARNINGS)
message(STATUS "Building 32 bits executables and libraries.") define_if_not(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE -D_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE)
list(APPEND LIBCXX_CXX_FLAGS "-m32") define_if_not(LIBCXX_ENABLE_STDIN -D_LIBCPP_HAS_NO_STDIN)
endif() define_if_not(LIBCXX_ENABLE_STDOUT -D_LIBCPP_HAS_NO_STDOUT)
elseif(LIBCXX_BUILD_32_BITS) define_if_not(LIBCXX_ENABLE_THREADS -D_LIBCPP_HAS_NO_THREADS)
message(FATAL_ERROR "LIBCXX_BUILD_32_BITS=ON is not supported on this platform.") define_if_not(LIBCXX_ENABLE_MONOTONIC_CLOCK -D_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
endif() define_if_not(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS -D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS)
# This is the _ONLY_ place where add_definitions is called.
if (MSVC)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()
# LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE configuration
if (NOT LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE)
add_definitions(-D_LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE)
endif()
# LIBCXX_ENABLE_STDIN configuration
if (NOT LIBCXX_ENABLE_STDIN)
add_definitions(-D_LIBCPP_HAS_NO_STDIN)
endif()
# LIBCXX_ENABLE_STDOUT configuration
if (NOT LIBCXX_ENABLE_STDOUT)
add_definitions(-D_LIBCPP_HAS_NO_STDOUT)
endif()
# LIBCXX_ENABLE_THREADS configuration
if (NOT LIBCXX_ENABLE_THREADS)
add_definitions(-D_LIBCPP_HAS_NO_THREADS)
if (NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
add_definitions(-D_LIBCPP_HAS_NO_MONOTONIC_CLOCK)
endif()
# Ensure LIBCXX_ENABLE_MONOTONIC_CLOCK is set to ON.
elseif(NOT LIBCXX_ENABLE_MONOTONIC_CLOCK)
message(FATAL_ERROR "LIBCXX_ENABLE_MONOTONIC_CLOCK can only be set to OFF"
" when LIBCXX_ENABLE_THREADS is also set to OFF.")
endif()
# LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS configuration
if (NOT LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
add_definitions(-D_LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS)
endif()
# Configure for sanitizers. If LIBCXX_BUILT_STANDALONE then we have to do
# the flag translation ourselves. Othewise LLVM's CMakeList.txt will handle it.
if (LIBCXX_BUILT_STANDALONE)
# NOTE: LLVM_USE_SANITIZER checks for a UNIX like system instead of MSVC.
# But we don't have LLVM_ON_UNIX so checking for MSVC is the best we can do.
if (LLVM_USE_SANITIZER AND NOT MSVC)
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_FNO_OMIT_FRAME_POINTER_FLAG
"-fno-omit-frame-pointer")
if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG" AND
NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELWITHDEBINFO")
append_if(LIBCXX_CXX_FLAGS LIBCXX_HAS_GLINE_TABLES_ONLY_FLAG
"-gline-tables-only")
endif()
if (LLVM_USE_SANITIZER STREQUAL "Address")
list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=address")
elseif (LLVM_USE_SANITIZER MATCHES "Memory(WithOrigins)?")
list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=memory")
if (LLVM_USE_SANITIZER STREQUAL "MemoryWithOrigins")
list(APPEND LIBCXX_CXX_FLAGS "-fsanitize-memory-track-origins")
endif()
elseif (LLVM_USE_SANITIZER STREQUAL "Undefined")
list(APPEND LIBCXX_CXX_FLAGS
"-fsanitize=undefined -fno-sanitize=vptr,function -fno-sanitize-recover")
elseif (LLVM_USE_SANITIZER STREQUAL "Thread")
list(APPEND LIBCXX_CXX_FLAGS "-fsanitize=thread")
else()
message(WARNING "Unsupported value of LLVM_USE_SANITIZER: ${LLVM_USE_SANITIZER}")
endif()
elseif(MSVC)
message(WARNING "LLVM_USE_SANITIZER is not supported with MSVC")
endif()
endif()
append_if(LIBCXX_CXX_FLAGS LIBCXX_TARGET_TRIPLE
"-target ${LIBCXX_TARGET_TRIPLE}")
append_if(LIBCXX_CXX_FLAGS LIBCXX_SYSROOT "--sysroot ${LIBCXX_SYSROOT}")
append_if(LIBCXX_CXX_FLAGS LIBCXX_GCC_TOOLCHAIN
"-gcc-toolchain ${LIBCXX_GCC_TOOLCHAIN}")
if (LLVM_USE_SANITIZER AND LIBCXX_GENERATE_COVERAGE)
message(FATAL_ERROR "LLVM_USE_SANITIZER cannot be used with LIBCXX_GENERATE_COVERAGE")
endif()
string(REPLACE ";" " " LIBCXX_CXX_FLAGS "${LIBCXX_CXX_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXX_CXX_FLAGS}")
#=============================================================================== #===============================================================================
# Setup Source Code # Setup Source Code And Tests
#=============================================================================== #===============================================================================
include_directories(include) include_directories(include)
add_subdirectory(include) add_subdirectory(include)
# Add source code. This also contains all of the logic for deciding linker flags
# soname, etc...
add_subdirectory(lib) add_subdirectory(lib)
#===============================================================================
# Setup Tests
#===============================================================================
add_subdirectory(test) add_subdirectory(test)
Context not available.

cmake/Modules/FindLLVM.cmake

  • This file was added.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
# Rely on llvm-config.
set(CONFIG_OUTPUT)
find_program(LLVM_CONFIG "llvm-config")
if(DEFINED LLVM_PATH)
set(LLVM_INCLUDE_DIR ${LLVM_INCLUDE_DIR} CACHE PATH "Path to llvm/include")
set(LLVM_PATH ${LLVM_PATH} CACHE PATH "Path to LLVM source tree")
set(LLVM_MAIN_SRC_DIR ${LLVM_PATH})
set(LLVM_CMAKE_PATH "${LLVM_PATH}/cmake/modules")
elseif(LLVM_CONFIG)
message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
set(CONFIG_COMMAND ${LLVM_CONFIG}
"--includedir"
"--prefix"
"--src-root")
execute_process(
COMMAND ${CONFIG_COMMAND}
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE CONFIG_OUTPUT
)
if(NOT HAD_ERROR)
string(REGEX REPLACE
"[ \t]*[\r\n]+[ \t]*" ";"
CONFIG_OUTPUT ${CONFIG_OUTPUT})
else()
string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
message(STATUS "${CONFIG_COMMAND_STR}")
message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
endif()
list(GET CONFIG_OUTPUT 0 INCLUDE_DIR)
list(GET CONFIG_OUTPUT 1 LLVM_OBJ_ROOT)
list(GET CONFIG_OUTPUT 2 MAIN_SRC_DIR)
set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
else()
message(FATAL_ERROR "llvm-config not found and LLVM_MAIN_SRC_DIR not defined. "
"Reconfigure with -DLLVM_CONFIG=path/to/llvm-config "
"or -DLLVM_PATH=path/to/llvm-source-root.")
endif()
if (NOT EXISTS ${LLVM_MAIN_SRC_DIR})
message(FATAL_ERROR "Not found: ${LLVM_MAIN_SRC_DIR}")
endif()
if(NOT EXISTS ${LLVM_CMAKE_PATH})
message(FATAL_ERROR "Not found: ${LLVM_CMAKE_PATH}")
endif()
list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
list(APPEND CMAKE_MODULE_PATH "${LLVM_MAIN_SRC_DIR}/cmake/modules")
if(LLVM_LIT)
# Define the default arguments to use with 'lit', and an option for the user
# to override.
set(LIT_ARGS_DEFAULT "-sv --show-xfail --show-unsupported")
if (MSVC OR XCODE)
set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
endif()
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
# On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
if( WIN32 AND NOT CYGWIN )
set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
endif()
else()
set(LLVM_INCLUDE_TESTS OFF)
endif()
set(LIBCXX_BUILT_STANDALONE 1)
else()
set(LLVM_MAIN_SRC_DIR "${CMAKE_SOURCE_DIR}" CACHE PATH "Path to LLVM source tree")
set(LLVM_LIT "${CMAKE_SOURCE_DIR}/utils/lit/lit.py")
endif()

cmake/Modules/HandleLibCXXABI.cmake

Context not available.
endmacro() endmacro()
# Setup the default options if LIBCXX_CXX_ABI is not specified.
if (NOT LIBCXX_CXX_ABI)
if (NOT DEFINED LIBCXX_BUILT_STANDALONE AND
IS_DIRECTORY "${CMAKE_SOURCE_DIR}/projects/libcxxabi")
set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
set(LIBCXX_CXX_ABI_INCLUDE_PATHS "${CMAKE_SOURCE_DIR}/projects/libcxxabi/include")
set(LIBCXX_CXX_ABI_INTREE 1)
else ()
set(LIBCXX_CXX_ABI_LIBNAME "none")
endif ()
else ()
set(LIBCXX_CXX_ABI_LIBNAME "${LIBCXX_CXX_ABI}")
endif ()
# Configure based on the selected ABI library.
if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++" OR if ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libstdc++" OR
"${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libsupc++") "${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libsupc++")
set(_LIBSUPCXX_INCLUDE_FILES set(_LIBSUPCXX_INCLUDE_FILES
Context not available.

cmake/Modules/HandleLibcxxFlags.cmake

  • This file was added.
# 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.
# - LIBCXX_COMPILE_FLAGS: flags used to compile libc++
# - LIBCXX_LINK_FLAGS: flags used to link libc++
# - LIBCXX_LIBRARIES: libraries to link libc++ 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 "${CMAKE_CXX_FLAGS}")
string(REPLACE "${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)
# 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 specified list of flags to both 'LIBCXX_COMPILE_FLAGS' and
# 'LIBCXX_LINK_FLAGS'.
macro(add_flags)
foreach(value ${ARGN})
list(APPEND LIBCXX_COMPILE_FLAGS ${value})
list(APPEND LIBCXX_LINK_FLAGS ${value})
endforeach()
endmacro()
# If the specified 'condition' is true then add a list of flags to both
# 'LIBCXX_COMPILE_FLAGS' and 'LIBCXX_LINK_FLAGS'.
macro(add_flags_if condition)
if (${condition})
add_flags(${ARGN})
endif()
endmacro()
# Add each flag in the list to LIBCXX_COMPILE_FLAGS and LIBCXX_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("${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
add_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of flags to 'LIBCXX_COMPILE_FLAGS'.
macro(add_compile_flags)
foreach(f ${ARGN})
list(APPEND LIBCXX_COMPILE_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBCXX_COMPILE_FLAGS'
macro(add_compile_flags_if condition)
if (${condition})
add_compile_flags(${ARGN})
endif()
endmacro()
# For each specified flag, add that flag to 'LIBCXX_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("-Werror ${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
add_compile_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of flags to 'LIBCXX_LINK_FLAGS'.
macro(add_link_flags)
foreach(f ${ARGN})
list(APPEND LIBCXX_LINK_FLAGS ${f})
endforeach()
endmacro()
# If 'condition' is true then add the specified list of flags to
# 'LIBCXX_LINK_FLAGS'
macro(add_link_flags_if condition)
if (${condition})
add_link_flags(${ARGN})
endif()
endmacro()
# For each specified flag, add that flag to 'LIBCXX_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("${flag}" "LIBCXX_SUPPORTS_${flagname}_FLAG")
add_link_flags_if(LIBCXX_SUPPORTS_${flagname}_FLAG ${flag})
endforeach()
endmacro()
# Add a list of libraries or link flags to 'LIBCXX_LIBRARIES'.
macro(add_library_flags)
foreach(lib ${ARGN})
list(APPEND LIBCXX_LIBRARIES ${lib})
endforeach()
endmacro()
# if 'condition' is true then add the specified list of libraries and flags
# to 'LIBCXX_LIBRARIES'.
macro(add_library_flags_if condition)
if(${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()

cmake/config-ix.cmake

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include(CheckCXXCompilerFlag) include(CheckCXXCompilerFlag)
# Check compiler flags # Check compiler flags
check_cxx_compiler_flag(-std=c++11 LIBCXX_HAS_STDCXX11_FLAG)
check_cxx_compiler_flag(-std=c++1y LIBCXX_HAS_STDCXX1Y_FLAG)
check_cxx_compiler_flag(-fPIC LIBCXX_HAS_FPIC_FLAG)
check_cxx_compiler_flag(-fno-omit-frame-pointer LIBCXX_HAS_FNO_OMIT_FRAME_POINTER_FLAG)
check_cxx_compiler_flag(-nodefaultlibs LIBCXX_HAS_NODEFAULTLIBS_FLAG)
check_cxx_compiler_flag(-nostdinc++ LIBCXX_HAS_NOSTDINCXX_FLAG)
check_cxx_compiler_flag(-Wall LIBCXX_HAS_WALL_FLAG)
check_cxx_compiler_flag(-W LIBCXX_HAS_W_FLAG)
check_cxx_compiler_flag(-Wno-unused-parameter LIBCXX_HAS_WNO_UNUSED_PARAMETER_FLAG)
check_cxx_compiler_flag(-Wwrite-strings LIBCXX_HAS_WWRITE_STRINGS_FLAG)
check_cxx_compiler_flag(-Wno-long-long LIBCXX_HAS_WNO_LONG_LONG_FLAG)
check_cxx_compiler_flag(-pedantic LIBCXX_HAS_PEDANTIC_FLAG)
check_cxx_compiler_flag(-Werror LIBCXX_HAS_WERROR_FLAG)
check_cxx_compiler_flag(-Wno-error LIBCXX_HAS_WNO_ERROR_FLAG)
check_cxx_compiler_flag(-fno-exceptions LIBCXX_HAS_FNO_EXCEPTIONS_FLAG)
check_cxx_compiler_flag(-fno-rtti LIBCXX_HAS_FNO_RTTI_FLAG)
check_cxx_compiler_flag(-gline-tables-only LIBCXX_HAS_GLINE_TABLES_ONLY_FLAG)
check_cxx_compiler_flag(/WX LIBCXX_HAS_WX_FLAG) check_cxx_compiler_flag(/WX LIBCXX_HAS_WX_FLAG)
check_cxx_compiler_flag(/WX- LIBCXX_HAS_NO_WX_FLAG) check_cxx_compiler_flag(/WX- LIBCXX_HAS_NO_WX_FLAG)
check_cxx_compiler_flag(/EHsc LIBCXX_HAS_EHSC_FLAG) check_cxx_compiler_flag(/EHsc LIBCXX_HAS_EHSC_FLAG)
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check_cxx_compiler_flag(/EHa- LIBCXX_HAS_NO_EHA_FLAG) check_cxx_compiler_flag(/EHa- LIBCXX_HAS_NO_EHA_FLAG)
check_cxx_compiler_flag(/GR- LIBCXX_HAS_NO_GR_FLAG) check_cxx_compiler_flag(/GR- LIBCXX_HAS_NO_GR_FLAG)
# Check libraries # Check libraries
check_library_exists(pthread pthread_create "" LIBCXX_HAS_PTHREAD_LIB) check_library_exists(pthread pthread_create "" LIBCXX_HAS_PTHREAD_LIB)
check_library_exists(c printf "" LIBCXX_HAS_C_LIB) check_library_exists(c printf "" LIBCXX_HAS_C_LIB)
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lib/CMakeLists.txt

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endif() endif()
if (LIBCXX_ENABLE_SHARED) if (LIBCXX_ENABLE_SHARED)
add_library(cxx SHARED add_library(cxx SHARED ${LIBCXX_SOURCES} ${LIBCXX_HEADERS})
${LIBCXX_SOURCES}
${LIBCXX_HEADERS}
)
else() else()
add_library(cxx STATIC add_library(cxx STATIC ${LIBCXX_SOURCES} ${LIBCXX_HEADERS})
${LIBCXX_SOURCES}
${LIBCXX_HEADERS}
)
endif()
#if LIBCXX_CXX_ABI_LIBRARY_PATH is defined we want to add it to the search path.
if (DEFINED LIBCXX_CXX_ABI_LIBRARY_PATH)
target_link_libraries(cxx "-L${LIBCXX_CXX_ABI_LIBRARY_PATH}")
endif() endif()
if (DEFINED LIBCXX_CXX_ABI_DEPS) if (DEFINED LIBCXX_CXX_ABI_DEPS)
add_dependencies(cxx LIBCXX_CXX_ABI_DEPS) add_dependencies(cxx LIBCXX_CXX_ABI_DEPS)
endif() endif()
set(libraries "") #if LIBCXX_CXX_ABI_LIBRARY_PATH is defined we want to add it to the search path.
if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY) add_link_flags_if(LIBCXX_CXX_ABI_LIBRARY_PATH "-L${LIBCXX_CXX_ABI_LIBRARY_PATH}")
# TODO(ericwf): Remove these GNU specific linker flags and let CMake do the
# configuration. This will be more portable.
list(APPEND libraries "-Wl,--whole-archive" "-Wl,-Bstatic")
list(APPEND libraries "${LIBCXX_CXX_ABI_LIBRARY}")
list(APPEND libraries "-Wl,-Bdynamic" "-Wl,--no-whole-archive")
else()
list(APPEND libraries "${LIBCXX_CXX_ABI_LIBRARY}")
endif()
# Generate library list. add_library_flags_if(LIBCXX_COVERAGE_LIBRARY "${LIBCXX_COVERAGE_LIBRARY}")
append_if(libraries LIBCXX_HAS_PTHREAD_LIB pthread)
append_if(libraries LIBCXX_HAS_C_LIB c) add_library_flags_if(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "-Wl,--whole-archive" "-Wl,-Bstatic")
append_if(libraries LIBCXX_HAS_M_LIB m) add_library_flags("${LIBCXX_CXX_ABI_LIBRARY}")
append_if(libraries LIBCXX_HAS_RT_LIB rt) add_library_flags_if(LIBCXX_ENABLE_STATIC_ABI_LIBRARY "-Wl,-Bdynamic" "-Wl,--no-whole-archive")
append_if(libraries LIBCXX_HAS_GCC_S_LIB gcc_s)
if (LIBCXX_COVERAGE_LIBRARY)
target_link_libraries(cxx ${LIBCXX_COVERAGE_LIBRARY})
endif()
target_link_libraries(cxx ${libraries})
if (APPLE AND LLVM_USE_SANITIZER) if (APPLE AND LLVM_USE_SANITIZER)
if ("${LLVM_USE_SANITIZER}" STREQUAL "Address") if ("${LLVM_USE_SANITIZER}" STREQUAL "Address")
Context not available.
set(LIBCXX_SANITIZER_LIBRARY "${LIBDIR}/${LIBFILE}") set(LIBCXX_SANITIZER_LIBRARY "${LIBDIR}/${LIBFILE}")
set(LIBCXX_SANITIZER_LIBRARY "${LIBCXX_SANITIZER_LIBRARY}" PARENT_SCOPE) set(LIBCXX_SANITIZER_LIBRARY "${LIBCXX_SANITIZER_LIBRARY}" PARENT_SCOPE)
message(STATUS "Manually linking compiler-rt library: ${LIBCXX_SANITIZER_LIBRARY}") message(STATUS "Manually linking compiler-rt library: ${LIBCXX_SANITIZER_LIBRARY}")
target_link_libraries(cxx "${LIBCXX_SANITIZER_LIBRARY}") add_library_flags("${LIBCXX_SANITIZER_LIBRARY}")
target_link_libraries(cxx "-Wl,-rpath,${LIBDIR}") add_link_flags("-Wl,-rpath,${LIBDIR}")
endif() endif()
endif() endif()
# Generate library list.
add_library_flags_if(LIBCXX_HAS_PTHREAD_LIB pthread)
add_library_flags_if(LIBCXX_HAS_C_LIB c)
add_library_flags_if(LIBCXX_HAS_M_LIB m)
add_library_flags_if(LIBCXX_HAS_RT_LIB rt)
add_library_flags_if(LIBCXX_HAS_GCC_S_LIB gcc_s)
# Setup flags. # Setup flags.
append_if(LIBCXX_COMPILE_FLAGS LIBCXX_HAS_FPIC_FLAG -fPIC) add_flags_if_supported(-fPIC)
append_if(LIBCXX_LINK_FLAGS LIBCXX_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs) add_link_flags_if_supported(-nodefaultlibs)
if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME STREQUAL "libcxxabi" OR if ( APPLE AND (LIBCXX_CXX_ABI_LIBNAME STREQUAL "libcxxabi" OR
LIBCXX_CXX_ABI_LIBNAME STREQUAL "none")) LIBCXX_CXX_ABI_LIBNAME STREQUAL "none"))
Context not available.
endif() endif()
if ( CMAKE_OSX_DEPLOYMENT_TARGET STREQUAL "10.6" ) if ( CMAKE_OSX_DEPLOYMENT_TARGET STREQUAL "10.6" )
list(APPEND LIBCXX_COMPILE_FLAGS "-U__STRICT_ANSI__") add_definitions(-D__STRICT_ANSI__)
list(APPEND LIBCXX_LINK_FLAGS add_link_flags(
"-compatibility_version 1" "-compatibility_version 1"
"-current_version 1" "-current_version 1"
"-install_name /usr/lib/libc++.1.dylib" "-install_name /usr/lib/libc++.1.dylib"
Context not available.
set (OSX_RE_EXPORT_LINE "/usr/lib/libc++abi.dylib -Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++abi${LIBCXX_LIBCPPABI_VERSION}.exp") set (OSX_RE_EXPORT_LINE "/usr/lib/libc++abi.dylib -Wl,-reexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++abi${LIBCXX_LIBCPPABI_VERSION}.exp")
endif() endif()
list(APPEND LIBCXX_LINK_FLAGS add_link_flags(
"-compatibility_version 1" "-compatibility_version 1"
"-install_name /usr/lib/libc++.1.dylib" "-install_name /usr/lib/libc++.1.dylib"
"-Wl,-unexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++unexp.exp" "-Wl,-unexported_symbols_list,${CMAKE_CURRENT_SOURCE_DIR}/libc++unexp.exp"
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endif() endif()
endif() endif()
string(REPLACE ";" " " LIBCXX_COMPILE_FLAGS "${LIBCXX_COMPILE_FLAGS}") target_link_libraries(cxx ${LIBCXX_LIBRARIES})
string(REPLACE ";" " " LIBCXX_LINK_FLAGS "${LIBCXX_LINK_FLAGS}") split_list(LIBCXX_COMPILE_FLAGS)
split_list(LIBCXX_LINK_FLAGS)
set_target_properties(cxx set_target_properties(cxx
PROPERTIES PROPERTIES
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test/CMakeLists.txt

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endif() endif()
endmacro() endmacro()
set(LIT_EXECUTABLE "" CACHE FILEPATH "Path to LLVM's llvm-lit.") set(LIBCXX_LIT_VARIANT "libcxx" CACHE STRING
"Configuration variant to use for LIT.")
if(LIBCXX_BUILT_STANDALONE)
# Make sure we can use the console pool for recent cmake and ninja > 1.5 pythonize_bool(LIBCXX_ENABLE_EXCEPTIONS)
if(CMAKE_VERSION VERSION_LESS 3.1.20141117) pythonize_bool(LIBCXX_ENABLE_RTTI)
set(cmake_3_2_USES_TERMINAL) pythonize_bool(LIBCXX_ENABLE_SHARED)
else() pythonize_bool(LIBCXX_BUILD_32_BITS)
set(cmake_3_2_USES_TERMINAL USES_TERMINAL) pythonize_bool(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE)
endif() pythonize_bool(LIBCXX_ENABLE_STDIN)
else() pythonize_bool(LIBCXX_ENABLE_STDOUT)
include(FindPythonInterp) pythonize_bool(LIBCXX_ENABLE_THREADS)
if(PYTHONINTERP_FOUND) pythonize_bool(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
set(LIT_EXECUTABLE pythonize_bool(LIBCXX_ENABLE_MONOTONIC_CLOCK)
${PYTHON_EXECUTABLE} ${CMAKE_SOURCE_DIR}/utils/lit/lit.py) pythonize_bool(LIBCXX_GENERATE_COVERAGE)
else() pythonize_bool(LIBCXXABI_USE_LLVM_UNWINDER)
message(WARNING "Could not find Python, cannot set LIT_EXECUTABLE.")
endif() # The tests shouldn't link to any ABI library when it has been linked into
# libc++ statically.
if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
set(LIBCXX_CXX_ABI_LIBNAME "none")
endif() endif()
set(LIBCXX_TARGET_INFO "libcxx.test.target_info.LocalTI" CACHE STRING
if (LIT_EXECUTABLE) "TargetInfo to use when setting up test environment.")
set(LIT_ARGS_DEFAULT "-sv --show-unsupported --show-xfail") set(LIBCXX_EXECUTOR "None" CACHE STRING
if (MSVC OR XCODE) "Executor to use when running tests.")
set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
endif() set(AUTO_GEN_COMMENT "## Autogenerated by libcxx configuration.\n# Do not edit!")
set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}"
CACHE STRING "Default options for lit") configure_file(
set(LIT_ARGS "${LLVM_LIT_ARGS}") ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
separate_arguments(LIT_ARGS) ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
@ONLY)
set(LIBCXX_LIT_VARIANT "libcxx" CACHE STRING
"Configuration variant to use for LIT.") add_lit_testsuite(check-libcxx "Running libcxx tests"
${CMAKE_CURRENT_BINARY_DIR}
pythonize_bool(LIBCXX_ENABLE_EXCEPTIONS) DEPENDS cxx)
pythonize_bool(LIBCXX_ENABLE_RTTI)
pythonize_bool(LIBCXX_ENABLE_SHARED) if (LIBCXX_GENERATE_COVERAGE)
pythonize_bool(LIBCXX_BUILD_32_BITS) include(CodeCoverage)
pythonize_bool(LIBCXX_ENABLE_GLOBAL_FILESYSTEM_NAMESPACE) set(output_dir "${CMAKE_CURRENT_BINARY_DIR}/coverage")
pythonize_bool(LIBCXX_ENABLE_STDIN) set(capture_dirs "${LIBCXX_LIB_CMAKEFILES_DIR}/cxx.dir/;${CMAKE_CURRENT_BINARY_DIR}")
pythonize_bool(LIBCXX_ENABLE_STDOUT) set(extract_dirs "${LIBCXX_SOURCE_DIR}/include;${LIBCXX_SOURCE_DIR}/src")
pythonize_bool(LIBCXX_ENABLE_THREADS) setup_lcov_test_target_coverage("cxx" "${output_dir}" "${capture_dirs}" "${extract_dirs}")
pythonize_bool(LIBCXX_ENABLE_THREAD_UNSAFE_C_FUNCTIONS)
pythonize_bool(LIBCXX_ENABLE_MONOTONIC_CLOCK)
pythonize_bool(LIBCXX_GENERATE_COVERAGE)
pythonize_bool(LIBCXXABI_USE_LLVM_UNWINDER)
# The tests shouldn't link to any ABI library when it has been linked into
# libc++ statically.
if (LIBCXX_ENABLE_STATIC_ABI_LIBRARY)
set(LIBCXX_CXX_ABI_LIBNAME "none")
endif()
set(LIBCXX_TARGET_INFO "libcxx.test.target_info.LocalTI" CACHE STRING
"TargetInfo to use when setting up test environment.")
set(LIBCXX_EXECUTOR "None" CACHE STRING
"Executor to use when running tests.")
set(AUTO_GEN_COMMENT "## Autogenerated by libcxx configuration.\n# Do not edit!")
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
@ONLY)
add_custom_target(check-libcxx
COMMAND ${LIT_EXECUTABLE}
${LIT_ARGS}
${CMAKE_CURRENT_BINARY_DIR}
DEPENDS cxx
COMMENT "Running libcxx tests"
${cmake_3_2_USES_TERMINAL})
if (LIBCXX_GENERATE_COVERAGE)
include(CodeCoverage)
set(output_dir "${CMAKE_CURRENT_BINARY_DIR}/coverage")
set(capture_dirs "${LIBCXX_LIB_CMAKEFILES_DIR}/cxx.dir/;${CMAKE_CURRENT_BINARY_DIR}")
set(extract_dirs "${LIBCXX_SOURCE_DIR}/include;${LIBCXX_SOURCE_DIR}/src")
setup_lcov_test_target_coverage("cxx" "${output_dir}" "${capture_dirs}" "${extract_dirs}")
endif()
else()
message(WARNING
"LIT_EXECUTABLE not set, no check-libcxx target will be available!")
endif() endif()
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test/lit.site.cfg.in

@AUTO_GEN_COMMENT@ @AUTO_GEN_COMMENT@
config.cxx_under_test = "@LIBCXX_COMPILER@" config.cxx_under_test = "@LIBCXX_COMPILER@"
config.std = "@LIBCXX_STD_VERSION@"
config.libcxx_src_root = "@LIBCXX_SOURCE_DIR@" config.libcxx_src_root = "@LIBCXX_SOURCE_DIR@"
config.libcxx_obj_root = "@LIBCXX_BINARY_DIR@" config.libcxx_obj_root = "@LIBCXX_BINARY_DIR@"
config.cxx_library_root = "@LIBCXX_LIBRARY_DIR@" config.cxx_library_root = "@LIBCXX_LIBRARY_DIR@"

www/index.html

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<p>In-tree build:</p> <p>In-tree build:</p>
<ul> <ul>
<li><code>cd where-you-want-to-live</code></li>
<li>Check out libcxx and <a href="http://libcxxabi.llvm.org/">libcxxabi</a> <li>Check out libcxx and <a href="http://libcxxabi.llvm.org/">libcxxabi</a>
into llvm/projects</li> into llvm/projects</li>
<li><code>cd llvm</code></li> <li><code>cd where-you-want-to-build</code></li>
<li><code>mkdir build &amp;&amp; cd build</code></li> <li><code>mkdir build &amp;&amp; cd build</code></li>
<li><code>cmake .. # Linux may require -DCMAKE_C_COMPILER=clang <li><code>cmake path/to/llvm # Linux may require -DCMAKE_C_COMPILER=clang
-DCMAKE_CXX_COMPILER=clang++</code></li> -DCMAKE_CXX_COMPILER=clang++</code></li>
<li><code>make cxx</code></li> <li><code>make cxx</code></li>
</ul> </ul>
<p>Out-of-tree build:</p> <p>Out-of-tree buildc:</p>
<ul> <ul>
<li>Check out libcxx</li> <li><code>cd where-you-want-to-live</code></li>
<li>Check out libcxx and llvm</li>
<li>If not on a Mac, also check out <li>If not on a Mac, also check out
<a href="http://libcxxabi.llvm.org/">libcxxabi</a></li> <a href="http://libcxxabi.llvm.org/">libcxxabi</a></li>
<li><code>cd libcxx</code></li> <li><code>cd where-you-want-to-build</code></li>
<li><code>mkdir build &amp;&amp; cd build</code></li> <li><code>mkdir build &amp;&amp; cd build</code></li>
<li><code>cmake -DLIBCXX_CXX_ABI=libcxxabi <li><code>cmake -DLLVM_PATH=path/to/llvm
-DLIBCXX_CXX_ABI=libcxxabi
-DLIBCXX_CXX_ABI_INCLUDE_PATHS=path/to/libcxxabi/include -DLIBCXX_CXX_ABI_INCLUDE_PATHS=path/to/libcxxabi/include
-DLIT_EXECUTABLE=path/to/llvm/utils/lit/lit.py .. # Linux may require -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++
-DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li> path/to/libcxx
</code></li>
<li><code>make</code></li> <li><code>make</code></li>
</ul> </ul>
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