llvm-project/compiler-rt/CMakeLists.txt

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# CMake build for CompilerRT.
#
# This build assumes that CompilerRT is checked out into the
# 'projects/compiler-rt' inside of an LLVM tree.
# Standalone build system for CompilerRT is not yet ready.
#
# An important constraint of the build is that it only produces libraries
# based on the ability of the host toolchain to target various platforms.
# Check if compiler-rt is built as a standalone project.
if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
project(CompilerRT C CXX ASM)
set(COMPILER_RT_STANDALONE_BUILD TRUE)
endif()
cmake_minimum_required(VERSION 3.4.3)
# FIXME:
# The OLD behavior (pre 3.2) for this policy is to not set the value of the
# CMAKE_EXE_LINKER_FLAGS variable in the generated test project. The NEW behavior
# for this policy is to set the value of the CMAKE_EXE_LINKER_FLAGS variable
# in the test project to the same as it is in the calling project. The new
# behavior cause the compiler_rt test to fail during try_compile: see
# projects/compiler-rt/cmake/Modules/CompilerRTUtils.cmake:121 such that
# CAN_TARGET_${arch} is not set properly. This results in COMPILER_RT_SUPPORTED_ARCH
# not being updated properly leading to poblems.
cmake_policy(SET CMP0056 OLD)
# Add path for custom compiler-rt modules.
list(INSERT CMAKE_MODULE_PATH 0
"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
)
include(base-config-ix)
option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
if (COMPILER_RT_STANDALONE_BUILD)
[CMake] Add the way to run tests in standalone build. 1) Depend on llvm-config (configured in LLVM_CONFIG_PATH) to get necessary LLVM source/binary directories. 2) Add basic support for running lit tests (check-xsan commands). For now this "support" is far from what we want: * unit tests are not built currently. * lit tests use Clang/compiler-rt from LLVM build directory, not the host compiler or just-built compiler-rt libraries. We should make a choice on the way we intend ti run compiler-rt lit testsuite: a) use either Clang from LLVM build tree, or the host compiler. b) use either just-built runtimes, or the runtimes shipped with the host compiler. Using just-built runtimes is tricky - we have to know where to put them, so that Clang/GCC driver would pick them up (and not overwrite the existing runtimes). Using a host compiler instead of Clang from LLVM build tree will give us a chance to run lit tests under GCC (which already has support for several sanitizers). That is, I tend to make the following choice: if we're in a standalone compiler-rt build, use host compiler with its set of runtime libraries to run lit tests. This will effectively decouple "make compiler-rt" and "make check-compiler-rt" in a standalone build - the latter wouldn't invoke the former. Note that if we decide to fix LLVM/Clang/compiler-rt build system so that it would configure/build compiler-rt with just-built Clang (as we do in Makefile-based build), this will not be a problem - we can add a dependency to ensure that clang/compiler-rt are rebuilt before running compiler-rt tests. llvm-svn: 201656
2014-02-19 18:04:29 +08:00
if (NOT LLVM_CONFIG_PATH)
find_program(LLVM_CONFIG_PATH "llvm-config"
DOC "Path to llvm-config binary")
[CMake] Add the way to run tests in standalone build. 1) Depend on llvm-config (configured in LLVM_CONFIG_PATH) to get necessary LLVM source/binary directories. 2) Add basic support for running lit tests (check-xsan commands). For now this "support" is far from what we want: * unit tests are not built currently. * lit tests use Clang/compiler-rt from LLVM build directory, not the host compiler or just-built compiler-rt libraries. We should make a choice on the way we intend ti run compiler-rt lit testsuite: a) use either Clang from LLVM build tree, or the host compiler. b) use either just-built runtimes, or the runtimes shipped with the host compiler. Using just-built runtimes is tricky - we have to know where to put them, so that Clang/GCC driver would pick them up (and not overwrite the existing runtimes). Using a host compiler instead of Clang from LLVM build tree will give us a chance to run lit tests under GCC (which already has support for several sanitizers). That is, I tend to make the following choice: if we're in a standalone compiler-rt build, use host compiler with its set of runtime libraries to run lit tests. This will effectively decouple "make compiler-rt" and "make check-compiler-rt" in a standalone build - the latter wouldn't invoke the former. Note that if we decide to fix LLVM/Clang/compiler-rt build system so that it would configure/build compiler-rt with just-built Clang (as we do in Makefile-based build), this will not be a problem - we can add a dependency to ensure that clang/compiler-rt are rebuilt before running compiler-rt tests. llvm-svn: 201656
2014-02-19 18:04:29 +08:00
if (NOT LLVM_CONFIG_PATH)
message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH")
endif()
endif()
execute_process(
COMMAND ${LLVM_CONFIG_PATH} "--obj-root" "--bindir" "--libdir" "--src-root"
RESULT_VARIABLE HAD_ERROR
OUTPUT_VARIABLE CONFIG_OUTPUT)
if (HAD_ERROR)
message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
endif()
[CMake] Add the way to run tests in standalone build. 1) Depend on llvm-config (configured in LLVM_CONFIG_PATH) to get necessary LLVM source/binary directories. 2) Add basic support for running lit tests (check-xsan commands). For now this "support" is far from what we want: * unit tests are not built currently. * lit tests use Clang/compiler-rt from LLVM build directory, not the host compiler or just-built compiler-rt libraries. We should make a choice on the way we intend ti run compiler-rt lit testsuite: a) use either Clang from LLVM build tree, or the host compiler. b) use either just-built runtimes, or the runtimes shipped with the host compiler. Using just-built runtimes is tricky - we have to know where to put them, so that Clang/GCC driver would pick them up (and not overwrite the existing runtimes). Using a host compiler instead of Clang from LLVM build tree will give us a chance to run lit tests under GCC (which already has support for several sanitizers). That is, I tend to make the following choice: if we're in a standalone compiler-rt build, use host compiler with its set of runtime libraries to run lit tests. This will effectively decouple "make compiler-rt" and "make check-compiler-rt" in a standalone build - the latter wouldn't invoke the former. Note that if we decide to fix LLVM/Clang/compiler-rt build system so that it would configure/build compiler-rt with just-built Clang (as we do in Makefile-based build), this will not be a problem - we can add a dependency to ensure that clang/compiler-rt are rebuilt before running compiler-rt tests. llvm-svn: 201656
2014-02-19 18:04:29 +08:00
string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT})
list(GET CONFIG_OUTPUT 0 LLVM_BINARY_DIR)
list(GET CONFIG_OUTPUT 1 LLVM_TOOLS_BINARY_DIR)
list(GET CONFIG_OUTPUT 2 LLVM_LIBRARY_DIR)
list(GET CONFIG_OUTPUT 3 LLVM_MAIN_SRC_DIR)
# Make use of LLVM CMake modules.
file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm")
list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
# Get some LLVM variables from LLVMConfig.
include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
set(LLVM_LIBRARY_OUTPUT_INTDIR
${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
[CMake] Add the way to run tests in standalone build. 1) Depend on llvm-config (configured in LLVM_CONFIG_PATH) to get necessary LLVM source/binary directories. 2) Add basic support for running lit tests (check-xsan commands). For now this "support" is far from what we want: * unit tests are not built currently. * lit tests use Clang/compiler-rt from LLVM build directory, not the host compiler or just-built compiler-rt libraries. We should make a choice on the way we intend ti run compiler-rt lit testsuite: a) use either Clang from LLVM build tree, or the host compiler. b) use either just-built runtimes, or the runtimes shipped with the host compiler. Using just-built runtimes is tricky - we have to know where to put them, so that Clang/GCC driver would pick them up (and not overwrite the existing runtimes). Using a host compiler instead of Clang from LLVM build tree will give us a chance to run lit tests under GCC (which already has support for several sanitizers). That is, I tend to make the following choice: if we're in a standalone compiler-rt build, use host compiler with its set of runtime libraries to run lit tests. This will effectively decouple "make compiler-rt" and "make check-compiler-rt" in a standalone build - the latter wouldn't invoke the former. Note that if we decide to fix LLVM/Clang/compiler-rt build system so that it would configure/build compiler-rt with just-built Clang (as we do in Makefile-based build), this will not be a problem - we can add a dependency to ensure that clang/compiler-rt are rebuilt before running compiler-rt tests. llvm-svn: 201656
2014-02-19 18:04:29 +08:00
# Find Python interpreter.
set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5)
include(FindPythonInterp)
if(NOT PYTHONINTERP_FOUND)
message(FATAL_ERROR "
Unable to find Python interpreter required testing. Please install Python
or specify the PYTHON_EXECUTABLE CMake variable.")
endif()
# Define default arguments to lit.
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")
endif()
set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${TARGET_TRIPLE} CACHE STRING
"Default triple for which compiler-rt runtimes will be built.")
if(DEFINED COMPILER_RT_TEST_TARGET_TRIPLE)
# Backwards compatibility: this variable used to be called
# COMPILER_RT_TEST_TARGET_TRIPLE.
set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${COMPILER_RT_TEST_TARGET_TRIPLE})
endif()
string(REPLACE "-" ";" TARGET_TRIPLE_LIST ${COMPILER_RT_DEFAULT_TARGET_TRIPLE})
list(GET TARGET_TRIPLE_LIST 0 COMPILER_RT_DEFAULT_TARGET_ARCH)
list(GET TARGET_TRIPLE_LIST 1 COMPILER_RT_DEFAULT_TARGET_OS)
list(GET TARGET_TRIPLE_LIST 2 COMPILER_RT_DEFAULT_TARGET_ABI)
# Determine if test target triple is specified explicitly, and doesn't match the
# default.
if(NOT COMPILER_RT_DEFAULT_TARGET_TRIPLE STREQUAL TARGET_TRIPLE)
set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE TRUE)
else()
set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE FALSE)
endif()
if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" STREQUAL "androideabi")
set(ANDROID 1)
endif()
include(CompilerRTUtils)
set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
# We support running instrumented tests when we're not cross compiling
# and target a UNIX-like system or Windows.
# We can run tests on Android even when we are cross-compiling.
if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR WIN32)) OR ANDROID
OR COMPILER_RT_EMULATOR)
option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
else()
option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
endif()
option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
option(COMPILER_RT_EXTERNALIZE_DEBUGINFO
"Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)
# COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
pythonize_bool(COMPILER_RT_DEBUG)
#================================
# Setup Compiler Flags
#================================
include(config-ix)
if(MSVC)
# Override any existing /W flags with /W4. This is what LLVM does. Failing to
# remove other /W[0-4] flags will result in a warning about overriding a
# previous flag.
if (COMPILER_RT_HAS_W4_FLAG)
string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
append_string_if(COMPILER_RT_HAS_W4_FLAG /W4 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
else()
append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
if(COMPILER_RT_ENABLE_WERROR)
append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
# Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
add_definitions(-D__func__=__FUNCTION__)
endif()
# Provide some common commmandline flags for Sanitizer runtimes.
append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS)
if(NOT COMPILER_RT_DEBUG)
append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS)
endif()
append_list_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_SANITIZE_SAFE_STACK_FLAG -fno-sanitize=safe-stack SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FVISIBILITY_INLINES_HIDDEN_FLAG -fvisibility-inlines-hidden SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS)
if(MSVC)
# Replace the /M[DT][d] flags with /MT, and strip any definitions of _DEBUG,
# which cause definition mismatches at link time.
# FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214.
if(COMPILER_RT_HAS_MT_FLAG)
foreach(flag_var
CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
string(REGEX REPLACE "/M[DT]d" "/MT" ${flag_var} "${${flag_var}}")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}")
endforeach()
endif()
append_list_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS)
# VS 2015 (version 1900) added support for thread safe static initialization.
# However, ASan interceptors run before CRT initialization, which causes the
# new thread safe code to crash. Disable this feature for now.
if (MSVC_VERSION GREATER 1899)
list(APPEND SANITIZER_COMMON_CFLAGS /Zc:threadSafeInit-)
endif()
endif()
append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS)
# Build with optimization, unless we're in debug mode. If we're using MSVC,
# always respect the optimization flags set by CMAKE_BUILD_TYPE instead.
if(NOT COMPILER_RT_DEBUG AND NOT MSVC)
list(APPEND SANITIZER_COMMON_CFLAGS -O3)
endif()
# Determine if we should restrict stack frame sizes.
# Stack frames on PowerPC and Mips and in debug biuld can be much larger than
# anticipated.
# FIXME: Fix all sanitizers and add -Wframe-larger-than to
# SANITIZER_COMMON_FLAGS
if(COMPILER_RT_HAS_WFRAME_LARGER_THAN_FLAG AND NOT COMPILER_RT_DEBUG
AND NOT ${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "powerpc|mips")
set(SANITIZER_LIMIT_FRAME_SIZE TRUE)
else()
set(SANITIZER_LIMIT_FRAME_SIZE FALSE)
endif()
# Build sanitizer runtimes with debug info.
if(COMPILER_RT_HAS_GLINE_TABLES_ONLY_FLAG AND NOT COMPILER_RT_DEBUG)
list(APPEND SANITIZER_COMMON_CFLAGS -gline-tables-only)
elseif(COMPILER_RT_HAS_G_FLAG)
list(APPEND SANITIZER_COMMON_CFLAGS -g)
elseif(COMPILER_RT_HAS_Zi_FLAG)
list(APPEND SANITIZER_COMMON_CFLAGS /Zi)
endif()
# Turn off several warnings.
append_list_if(COMPILER_RT_HAS_WGNU_FLAG -Wno-gnu SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WVARIADIC_MACROS_FLAG -Wno-variadic-macros SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WC99_EXTENSIONS_FLAG -Wno-c99-extensions SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WNON_VIRTUAL_DTOR_FLAG -Wno-non-virtual-dtor SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4146_FLAG /wd4146 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4291_FLAG /wd4291 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4391_FLAG /wd4391 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4722_FLAG /wd4722 SANITIZER_COMMON_CFLAGS)
append_list_if(COMPILER_RT_HAS_WD4800_FLAG /wd4800 SANITIZER_COMMON_CFLAGS)
# Warnings to turn off for all libraries, not just sanitizers.
append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
if(APPLE AND SANITIZER_MIN_OSX_VERSION VERSION_LESS "10.9")
# Mac OS X prior to 10.9 had problems with exporting symbols from
# libc++/libc++abi.
set(SANITIZER_CAN_USE_CXXABI FALSE)
elseif(MSVC)
set(SANITIZER_CAN_USE_CXXABI FALSE)
else()
set(SANITIZER_CAN_USE_CXXABI TRUE)
endif()
pythonize_bool(SANITIZER_CAN_USE_CXXABI)
add_subdirectory(include)
set(COMPILER_RT_LIBCXX_PATH ${LLVM_MAIN_SRC_DIR}/projects/libcxx)
if(EXISTS ${COMPILER_RT_LIBCXX_PATH}/)
set(COMPILER_RT_HAS_LIBCXX_SOURCES TRUE)
else()
set(COMPILER_RT_HAS_LIBCXX_SOURCES FALSE)
endif()
set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/tools/lld)
if(EXISTS ${COMPILER_RT_LLD_PATH}/)
set(COMPILER_RT_HAS_LLD_SOURCES TRUE)
else()
set(COMPILER_RT_HAS_LLD_SOURCES FALSE)
endif()
pythonize_bool(COMPILER_RT_HAS_LLD_SOURCES)
add_subdirectory(lib)
if(COMPILER_RT_INCLUDE_TESTS)
add_subdirectory(unittests)
add_subdirectory(test)
endif()