forked from OSchip/llvm-project
Add a cmake build system.
Will add support for tests with lit in a later patch. This does not yet support building the unwinder in src/Unwind. llvm-svn: 212286
This commit is contained in:
Dan Albert
parent
2344cfc335
commit
0ed2e2f6ec
libcxxabi
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@ -0,0 +1,212 @@
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#===============================================================================
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# Setup Project
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#===============================================================================
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cmake_minimum_required(VERSION 2.8.8)
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
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project(libcxxabi)
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# Rely on llvm-config.
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set(CONFIG_OUTPUT)
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find_program(LLVM_CONFIG "llvm-config")
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if(LLVM_CONFIG)
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message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
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set(CONFIG_COMMAND ${LLVM_CONFIG}
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"--bindir"
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"--includedir"
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"--libdir"
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"--prefix"
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"--src-root")
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execute_process(
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COMMAND ${CONFIG_COMMAND}
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RESULT_VARIABLE HAD_ERROR
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OUTPUT_VARIABLE CONFIG_OUTPUT
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)
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if(NOT HAD_ERROR)
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string(REGEX REPLACE
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"[ \t]*[\r\n]+[ \t]*" ";"
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CONFIG_OUTPUT ${CONFIG_OUTPUT})
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else()
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string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
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message(STATUS "${CONFIG_COMMAND_STR}")
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message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
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endif()
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else()
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message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")
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endif()
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list(GET CONFIG_OUTPUT 0 TOOLS_BINARY_DIR)
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list(GET CONFIG_OUTPUT 1 INCLUDE_DIR)
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list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
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list(GET CONFIG_OUTPUT 3 LLVM_OBJ_ROOT)
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list(GET CONFIG_OUTPUT 4 MAIN_SRC_DIR)
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set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
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set(LLVM_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
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set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
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set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
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set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
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set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR}/share/llvm/cmake")
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set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
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if(EXISTS ${LLVMCONFIG_FILE})
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list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
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include(${LLVMCONFIG_FILE})
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else()
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message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")
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endif()
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set(PACKAGE_NAME libcxxabi)
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set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
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set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
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set(PACKAGE_BUGREPORT "llvmbugs@cs.uiuc.edu")
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if(EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
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set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
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else()
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# Seek installed Lit.
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find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit
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DOC "Path to lit.py")
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endif()
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if(LLVM_LIT)
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# Define the default arguments to use with 'lit', and an option for the user
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# to override.
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set(LIT_ARGS_DEFAULT "-sv")
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if (MSVC OR XCODE)
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set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
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endif()
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set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
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# On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
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if( WIN32 AND NOT CYGWIN )
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set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
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endif()
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else()
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set(LLVM_INCLUDE_TESTS OFF)
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endif()
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
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set(LIBCXXABI_BUILT_STANDALONE 1)
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endif()
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#===============================================================================
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# Setup CMake Options
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#===============================================================================
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# Define options.
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option(LIBCXXABI_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON)
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option(LIBCXXABI_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
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option(LIBCXXABI_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
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option(LIBCXXABI_ENABLE_SHARED "Build libc++abi as a shared library." OFF)
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#===============================================================================
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# Configure System
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#===============================================================================
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# Add path for custom modules
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set(CMAKE_MODULE_PATH
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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${CMAKE_MODULE_PATH}
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)
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# Configure compiler.
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include(config-ix)
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#===============================================================================
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# Setup Compiler Flags
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#===============================================================================
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# Get required flags.
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macro(append_if list condition var)
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if (${condition})
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list(APPEND ${list} ${var})
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endif()
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endmacro()
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if (LIBCXXABI_HAS_NOSTDINCXX_FLAG)
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list(APPEND LIBCXXABI_CXX_REQUIRED_FLAGS -nostdinc++)
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endif()
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if (NOT LIBCXXABI_HAS_STDCXX11_FLAG)
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message(FATAL_ERROR "Building libcxxabi requires a C++11 capable compiler.")
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endif()
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list(APPEND LIBCXXABI_CXX_REQUIRED_FLAGS -std=c++11)
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# Get warning flags
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if (NOT MSVC)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WALL_FLAG -Wall)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WNO_UNUSED_FUNCTION_FLAG -Wno-unused-function)
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list(APPEND LIBCXXABI_CXX_REQUIRED_FLAGS -Werror=return-type)
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endif()
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_W_FLAG -W)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WNO_UNUSED_PARAMETER_FLAG -Wno-unused-parameter)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WWRITE_STRINGS_FLAG -Wwrite-strings)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WNO_LONG_LONG_FLAG -Wno-long-long)
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if (LIBCXXABI_ENABLE_WERROR)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WERROR_FLAG -Werror)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WX_FLAG -WX)
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else()
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_WNO_ERROR_FLAG -Wno-error)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_NO_WX_FLAG -WX-)
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endif()
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if (LIBCXXABI_ENABLE_PEDANTIC)
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append_if(LIBCXXABI_CXX_WARNING_FLAGS LIBCXXABI_HAS_PEDANTIC_FLAG -pedantic)
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endif()
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# Get feature flags.
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# Exceptions
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# Catches C++ exceptions only and tells the compiler to assume that extern C
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# functions never throw a C++ exception.
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append_if(LIBCXXABI_CXX_FEATURE_FLAGS LIBCXXABI_HAS_EHSC_FLAG -EHsc)
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# Assert
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string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
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if (LIBCXXABI_ENABLE_ASSERTIONS)
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# MSVC doesn't like _DEBUG on release builds. See PR 4379.
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if (NOT MSVC)
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list(APPEND LIBCXXABI_CXX_FEATURE_FLAGS -D_DEBUG)
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endif()
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# On Release builds cmake automatically defines NDEBUG, so we
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# explicitly undefine it:
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if (uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
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list(APPEND LIBCXXABI_CXX_FEATURE_FLAGS -UNDEBUG)
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endif()
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else()
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if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE")
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list(APPEND LIBCXXABI_CXX_FEATURE_FLAGS -DNDEBUG)
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endif()
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endif()
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# Static library
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if (NOT LIBCXXABI_ENABLE_SHARED)
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list(APPEND LIBCXXABI_CXX_FEATURE_FLAGS -D_LIBCPP_BUILD_STATIC)
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endif()
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# This is the _ONLY_ place where add_definitions is called.
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if (MSVC)
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add_definitions(-D_CRT_SECURE_NO_WARNINGS)
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endif()
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string(REPLACE ";" " " LIBCXXABI_CXX_REQUIRED_FLAGS "${LIBCXXABI_CXX_REQUIRED_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_REQUIRED_FLAGS}")
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string(REPLACE ";" " " LIBCXXABI_CXX_WARNING_FLAGS "${LIBCXXABI_CXX_WARNING_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_WARNING_FLAGS}")
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string(REPLACE ";" " " LIBCXXABI_CXX_FEATURE_FLAGS "${LIBCXXABI_CXX_FEATURE_FLAGS}")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${LIBCXXABI_CXX_FEATURE_FLAGS}")
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#===============================================================================
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# Setup Source Code
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#===============================================================================
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include_directories(include)
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# Add source code. This also contains all of the logic for deciding linker flags
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# soname, etc...
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add_subdirectory(src)
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@ -0,0 +1,27 @@
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include(CheckLibraryExists)
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include(CheckCXXCompilerFlag)
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# Check compiler flags
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check_cxx_compiler_flag(-std=c++11 LIBCXXABI_HAS_STDCXX11_FLAG)
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check_cxx_compiler_flag(-fPIC LIBCXXABI_HAS_FPIC_FLAG)
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check_cxx_compiler_flag(-nodefaultlibs LIBCXXABI_HAS_NODEFAULTLIBS_FLAG)
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check_cxx_compiler_flag(-nostdinc++ LIBCXXABI_HAS_NOSTDINCXX_FLAG)
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check_cxx_compiler_flag(-Wall LIBCXXABI_HAS_WALL_FLAG)
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check_cxx_compiler_flag(-W LIBCXXABI_HAS_W_FLAG)
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check_cxx_compiler_flag(-Wno-unused-function LIBCXXABI_HAS_WNO_UNUSED_FUNCTION_FLAG)
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check_cxx_compiler_flag(-Wno-unused-parameter LIBCXXABI_HAS_WNO_UNUSED_PARAMETER_FLAG)
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check_cxx_compiler_flag(-Wwrite-strings LIBCXXABI_HAS_WWRITE_STRINGS_FLAG)
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check_cxx_compiler_flag(-Wno-long-long LIBCXXABI_HAS_WNO_LONG_LONG_FLAG)
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check_cxx_compiler_flag(-pedantic LIBCXXABI_HAS_PEDANTIC_FLAG)
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check_cxx_compiler_flag(-Werror LIBCXXABI_HAS_WERROR_FLAG)
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check_cxx_compiler_flag(-Wno-error LIBCXXABI_HAS_WNO_ERROR_FLAG)
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check_cxx_compiler_flag(-fno-rtti LIBCXXABI_HAS_FNO_RTTI_FLAG)
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check_cxx_compiler_flag(/WX LIBCXXABI_HAS_WX_FLAG)
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check_cxx_compiler_flag(/WX- LIBCXXABI_HAS_NO_WX_FLAG)
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check_cxx_compiler_flag(/EHsc LIBCXXABI_HAS_EHSC_FLAG)
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check_cxx_compiler_flag(/EHs- LIBCXXABI_HAS_NO_EHS_FLAG)
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check_cxx_compiler_flag(/EHa- LIBCXXABI_HAS_NO_EHA_FLAG)
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check_cxx_compiler_flag(/GR- LIBCXXABI_HAS_NO_GR_FLAG)
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# Check libraries
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check_library_exists(c printf "" LIBCXXABI_HAS_C_LIB)
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@ -0,0 +1,99 @@
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# Get sources
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set(LIBCXXABI_SOURCES
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abort_message.cpp
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cxa_aux_runtime.cpp
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cxa_default_handlers.cpp
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cxa_demangle.cpp
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cxa_exception.cpp
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cxa_exception_storage.cpp
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cxa_guard.cpp
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cxa_handlers.cpp
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cxa_new_delete.cpp
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cxa_personality.cpp
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cxa_unexpected.cpp
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cxa_vector.cpp
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cxa_virtual.cpp
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exception.cpp
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private_typeinfo.cpp
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stdexcept.cpp
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typeinfo.cpp
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)
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set(LIBCXXABI_HEADERS
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../include/cxxabi.h
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../include/libunwind.h
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../include/unwind.h
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)
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append_if(LIBCXXABI_HEADERS APPLE ../include/mach-o/compact_unwind_encoding.h)
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# Add all the headers to the project for IDEs.
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if (MSVC_IDE OR XCODE)
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# Force them all into the headers dir on MSVC, otherwise they end up at
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# project scope because they don't have extensions.
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if (MSVC_IDE)
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source_group("Header Files" FILES ${LIBCXXABI_HEADERS})
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endif()
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endif()
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if (LIBCXXABI_ENABLE_SHARED)
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add_library(cxxabi SHARED
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${LIBCXXABI_SOURCES}
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${LIBCXXABI_HEADERS}
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)
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else()
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add_library(cxxabi STATIC
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${LIBCXXABI_SOURCES}
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${LIBCXXABI_HEADERS}
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)
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endif()
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if (LIBCXXABI_LIBCXX_INCLUDES)
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include_directories("${LIBCXXABI_LIBCXX_INCLUDES}")
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elseif (NOT LIBCXXABI_BUILT_STANDALONE)
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include_directories("${LLVM_MAIN_SRC_DIR}/projects/libcxx/include")
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else()
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include_directories("${LLVM_INCLUDE_DIR}/c++/v1")
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endif()
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# Generate library list.
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set(libraries ${LIBCXXABI_CXX_ABI_LIBRARIES})
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append_if(libraries LIBCXXABI_HAS_C_LIB c)
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target_link_libraries(cxxabi ${libraries})
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# Setup flags.
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append_if(compile_flags LIBCXXABI_HAS_FPIC_FLAG -fPIC)
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append_if(link_flags LIBCXXABI_HAS_NODEFAULTLIBS_FLAG -nodefaultlibs)
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if ( APPLE )
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if ( CMAKE_OSX_DEPLOYMENT_TARGET STREQUAL "10.6" )
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list(APPEND compile_flags "-U__STRICT_ANSI__")
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list(APPEND link_flags
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"-compatibility_version 1"
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"-current_version ${LIBCXXABI_VERSION}"
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"-install_name /usr/lib/libc++abi.1.dylib"
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"/usr/lib/libSystem.B.dylib")
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else()
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list(APPEND link_flags
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"-compatibility_version 1"
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"-install_name /usr/lib/libc++abi.1.dylib")
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endif()
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endif()
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string(REPLACE ";" " " compile_flags "${compile_flags}")
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string(REPLACE ";" " " link_flags "${link_flags}")
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set_target_properties(cxxabi
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PROPERTIES
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COMPILE_FLAGS "${compile_flags}"
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LINK_FLAGS "${link_flags}"
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OUTPUT_NAME "c++abi"
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VERSION "1.0"
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SOVERSION "1"
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)
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install(TARGETS cxxabi
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LIBRARY DESTINATION lib
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ARCHIVE DESTINATION lib
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)
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@ -79,6 +79,23 @@
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<li><code>svn co http://llvm.org/svn/llvm-project/libcxxabi/trunk libcxxabi</code></li>
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</ul>
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<p>To build:</p>
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<ul>
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<li>Check out libcxxabi into <code>llvm/projects</code></li>
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<li><code>cd llvm</code></li>
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<li><code>mkdir build && cd build</code></li>
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<li><code>cmake .. # on linux you may need to prefix with CC=clang CXX=clang++</code></li>
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<li><code>make</code></li>
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</ul>
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<p>To do a standalone build:</p>
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<ul>
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<li><code>cd libcxxabi</code></li>
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<li><code>mkdir build && cd build</code></li>
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<li><code>cmake -DLIBCXXABI_LIBCXX_INCLUDES=path/to/libcxx/include .. # on linux you may need -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++</code></li>
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<li><code>make</code></li>
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</ul>
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<p>Send discussions to the
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(<a href="http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev">clang mailing list</a>).</p>
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