diff options
Diffstat (limited to 'lib/libunwind/CMakeLists.txt')
| -rw-r--r-- | lib/libunwind/CMakeLists.txt | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/lib/libunwind/CMakeLists.txt b/lib/libunwind/CMakeLists.txt new file mode 100644 index 00000000000..806b825475c --- /dev/null +++ b/lib/libunwind/CMakeLists.txt @@ -0,0 +1,260 @@ +#=============================================================================== +# Setup Project +#=============================================================================== + +cmake_minimum_required(VERSION 3.4.3) + +if (POLICY CMP0042) + cmake_policy(SET CMP0042 NEW) # Set MACOSX_RPATH=YES by default +endif() + +if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR) + project(libunwind) + + # 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}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") + set(LLVM_LIT_PATH "${LLVM_PATH}/utils/lit/lit.py") + 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 (EXISTS ${LLVM_CMAKE_PATH}) + list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") + include("${LLVM_CMAKE_PATH}/AddLLVM.cmake") + include("${LLVM_CMAKE_PATH}/HandleLLVMOptions.cmake") + else() + message(FATAL_ERROR "Not found: ${LLVM_CMAKE_PATH}") + endif() + + set(PACKAGE_NAME libunwind) + set(PACKAGE_VERSION 3.9.0) + set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}") + set(PACKAGE_BUGREPORT "llvm-bugs@lists.llvm.org") + + if (EXISTS ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) + set(LLVM_LIT ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py) + else() + # Seek installed Lit. + find_program(LLVM_LIT "lit.py" ${LLVM_MAIN_SRC_DIR}/utils/lit + DOC "Path to lit.py") + endif() + + if (LLVM_LIT) + # Define the default arguments to use with 'lit', and an option for the user + # to override. + set(LIT_ARGS_DEFAULT "-sv") + if (MSVC OR XCODE) + set(LIT_ARGS_DEFAULT "${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(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) + set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) +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() + +#=============================================================================== +# Setup CMake Options +#=============================================================================== + +# Define options. +option(LIBUNWIND_BUILD_32_BITS "Build 32 bit libunwind" ${LLVM_BUILD_32_BITS}) +option(LIBUNWIND_ENABLE_ASSERTIONS "Enable assertions independent of build mode." ON) +option(LIBUNWIND_ENABLE_PEDANTIC "Compile with pedantic enabled." ON) +option(LIBUNWIND_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF) +option(LIBUNWIND_ENABLE_SHARED "Build libunwind as a shared library." ON) +option(LIBUNWIND_ENABLE_CROSS_UNWINDING "Enable cross-platform unwinding support." OFF) +option(LIBUNWIND_ENABLE_ARM_WMMX "Enable unwinding support for ARM WMMX registers." OFF) + +set(LIBUNWIND_TARGET_TRIPLE "" CACHE STRING "Target triple for cross compiling.") +set(LIBUNWIND_GCC_TOOLCHAIN "" CACHE PATH "GCC toolchain for cross compiling.") +set(LIBUNWIND_SYSROOT "" CACHE PATH "Sysroot for cross compiling.") + +# Check that we can build with 32 bits if requested. +if (CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32) + if (LIBUNWIND_BUILD_32_BITS AND NOT LLVM_BUILD_32_BITS) # Don't duplicate the output from LLVM + message(STATUS "Building 32 bits executables and libraries.") + endif() +elseif(LIBUNWIND_BUILD_32_BITS) + message(FATAL_ERROR "LIBUNWIND_BUILD_32_BITS=ON is not supported on this platform.") +endif() + +#=============================================================================== +# Configure System +#=============================================================================== + +# Add path for custom modules +set(CMAKE_MODULE_PATH + "${CMAKE_CURRENT_SOURCE_DIR}/cmake" + ${CMAKE_MODULE_PATH}) + +set(LIBUNWIND_COMPILER ${CMAKE_CXX_COMPILER}) +set(LIBUNWIND_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}) +set(LIBUNWIND_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}) +set(LIBUNWIND_LIBRARY_DIR ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX}) + +set(LIBUNWIND_C_FLAGS "") +set(LIBUNWIND_CXX_FLAGS "") +set(LIBUNWIND_COMPILE_FLAGS "") +set(LIBUNWIND_LINK_FLAGS "") + +# Get required flags. +macro(append_if list condition var) + if (${condition}) + list(APPEND ${list} ${var}) + endif() +endmacro() + +macro(add_target_flags_if condition var) + if (${condition}) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${var}") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${var}") + list(APPEND LINUNWIND_COMPILE_FLAGS ${var}) + list(APPEND LIBUNWIND_LINK_FLAGS ${var}) + endif() +endmacro() + +add_target_flags_if(LIBUNWIND_BUILD_32_BITS "-m32") +add_target_flags_if(LIBUNWIND_TARGET_TRIPLE + "-target ${LIBUNWIND_TARGET_TRIPLE}") +add_target_flags_if(LIBUNWIND_GCC_TOOLCHAIN + "-gcc-toolchain ${LIBUNWIND_GCC_TOOLCHAIN}") +add_target_flags_if(LIBUNWIND_SYSROOT + "--sysroot=${LIBUNWIND_SYSROOT}") + +# Configure compiler. +include(config-ix) + +#=============================================================================== +# Setup Compiler Flags +#=============================================================================== + +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WERROR_FLAG -Werror=return-type) + +# Get warning flags +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_W_FLAG -W) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WALL_FLAG -Wall) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WCHAR_SUBSCRIPTS_FLAG -Wchar-subscripts) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WCONVERSION_FLAG -Wconversion) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WMISMATCHED_TAGS_FLAG -Wmismatched-tags) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WMISSING_BRACES_FLAG -Wmissing-braces) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNEWLINE_EOF_FLAG -Wnewline-eof) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNO_UNUSED_FUNCTION_FLAG -Wno-unused-function) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSHADOW_FLAG -Wshadow) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSHORTEN_64_TO_32_FLAG -Wshorten-64-to-32) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSIGN_COMPARE_FLAG -Wsign-compare) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSIGN_CONVERSION_FLAG -Wsign-conversion) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSTRICT_ALIASING_FLAG -Wstrict-aliasing=2) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WSTRICT_OVERFLOW_FLAG -Wstrict-overflow=4) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNUSED_PARAMETER_FLAG -Wunused-parameter) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNUSED_VARIABLE_FLAG -Wunused-variable) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WWRITE_STRINGS_FLAG -Wwrite-strings) +append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WUNDEF_FLAG -Wundef) + +if (LIBUNWIND_ENABLE_WERROR) + append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WERROR_FLAG -Werror) + append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WX_FLAG -WX) +else() + append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_WNO_ERROR_FLAG -Wno-error) + append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_NO_WX_FLAG -WX-) +endif() + +if (LIBUNWIND_ENABLE_PEDANTIC) + append_if(LIBUNWIND_COMPILE_FLAGS LIBUNWIND_HAS_PEDANTIC_FLAG -pedantic) +endif() + +# Get feature flags. +# Exceptions +# Catches C++ exceptions only and tells the compiler to assume that extern C +# functions never throw a C++ exception. +append_if(LIBUNWIND_CXX_FLAGS LIBUNWIND_HAS_FSTRICT_ALIASING_FLAG -fstrict-aliasing) +append_if(LIBUNWIND_CXX_FLAGS LIBUNWIND_HAS_EHSC_FLAG -EHsc) + +append_if(LIBUNWIND_C_FLAGS LIBUNWIND_HAS_FUNWIND_TABLES -funwind-tables) + +# Assert +string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE) +if (LIBUNWIND_ENABLE_ASSERTIONS) + # MSVC doesn't like _DEBUG on release builds. See PR 4379. + if (NOT MSVC) + list(APPEND LIBUNWIND_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 LIBUNWIND_COMPILE_FLAGS -UNDEBUG) + endif() +else() + if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE") + list(APPEND LIBUNWIND_COMPILE_FLAGS -DNDEBUG) + endif() +endif() + +# Cross-unwinding +if (NOT LIBUNWIND_ENABLE_CROSS_UNWINDING) + list(APPEND LIBUNWIND_COMPILE_FLAGS -D_LIBUNWIND_IS_NATIVE_ONLY) +endif() + +# ARM WMMX register support +if (LIBUNWIND_ENABLE_ARM_WMMX) + # __ARM_WMMX is a compiler pre-define (as per the ACLE 2.0). Clang does not + # define this macro for any supported target at present. Therefore, here we + # provide the option to explicitly enable support for WMMX registers in the + # unwinder. + list(APPEND LIBUNWIND_COMPILE_FLAGS -D__ARM_WMMX) +endif() + +# This is the _ONLY_ place where add_definitions is called. +if (MSVC) + add_definitions(-D_CRT_SECURE_NO_WARNINGS) +endif() + +#=============================================================================== +# Setup Source Code +#=============================================================================== + +include_directories(include) + +add_subdirectory(src) |