mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-01-09 17:43:57 +00:00
90caf899eb
On Darwin, we're having multiple issues with using -fomit-frame-pointer in the AddressSanitizer and ThreadSanitizer runtimes, so we're actually not using -fomit-frame-pointer in the our builds of the sanitizer dylibs. This patch just pushes our internal change upstream. The issues are usually with debuggers, profilers and other tools that unwind the stack (crash reporter), which are often simply not able to get a stack trace. And crashlogs that don't contain a stack trace are a huge problem. Differential Revision: https://reviews.llvm.org/D31376 llvm-svn: 298859
259 lines
11 KiB
CMake
259 lines
11 KiB
CMake
# CMake build for CompilerRT.
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#
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# This build assumes that CompilerRT is checked out into the
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# 'projects/compiler-rt' or 'runtimes/compiler-rt' inside of an LLVM tree.
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# Standalone build system for CompilerRT is not yet ready.
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#
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# An important constraint of the build is that it only produces libraries
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# based on the ability of the host toolchain to target various platforms.
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# Check if compiler-rt is built as a standalone project.
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if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR OR COMPILER_RT_STANDALONE_BUILD)
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project(CompilerRT C CXX ASM)
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set(COMPILER_RT_STANDALONE_BUILD TRUE)
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endif()
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cmake_minimum_required(VERSION 3.4.3)
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# Add path for custom compiler-rt modules.
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list(INSERT CMAKE_MODULE_PATH 0
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake"
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"${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
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)
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include(base-config-ix)
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include(CompilerRTUtils)
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option(COMPILER_RT_BUILD_BUILTINS "Build builtins" ON)
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mark_as_advanced(COMPILER_RT_BUILD_BUILTINS)
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option(COMPILER_RT_BUILD_SANITIZERS "Build sanitizers" ON)
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mark_as_advanced(COMPILER_RT_BUILD_SANITIZERS)
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option(COMPILER_RT_BUILD_XRAY "Build xray" ON)
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mark_as_advanced(COMPILER_RT_BUILD_XRAY)
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if (COMPILER_RT_STANDALONE_BUILD)
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load_llvm_config()
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# Find Python interpreter.
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set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5)
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include(FindPythonInterp)
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if(NOT PYTHONINTERP_FOUND)
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message(FATAL_ERROR "
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Unable to find Python interpreter required testing. Please install Python
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or specify the PYTHON_EXECUTABLE CMake variable.")
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endif()
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# Define default arguments to lit.
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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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endif()
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construct_compiler_rt_default_triple()
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if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" STREQUAL "androideabi")
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set(ANDROID 1)
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endif()
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set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
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set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
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# We support running instrumented tests when we're not cross compiling
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# and target a UNIX-like system or Windows.
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# We can run tests on Android even when we are cross-compiling.
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if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND (UNIX OR WIN32)) OR ANDROID
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OR COMPILER_RT_EMULATOR)
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option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
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else()
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option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
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endif()
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option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
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option(COMPILER_RT_EXTERNALIZE_DEBUGINFO
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"Generate dSYM files and strip executables and libraries (Darwin Only)" OFF)
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# COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
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pythonize_bool(COMPILER_RT_DEBUG)
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include(config-ix)
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if(APPLE AND SANITIZER_MIN_OSX_VERSION VERSION_LESS "10.9")
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# Mac OS X prior to 10.9 had problems with exporting symbols from
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# libc++/libc++abi.
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set(use_cxxabi_default OFF)
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elseif(MSVC)
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set(use_cxxabi_default OFF)
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else()
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set(use_cxxabi_default ON)
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endif()
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option(SANITIZER_CAN_USE_CXXABI "Sanitizers can use cxxabi" ${use_cxxabi_default})
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pythonize_bool(SANITIZER_CAN_USE_CXXABI)
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#================================
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# Setup Compiler Flags
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#================================
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if(MSVC)
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# Override any existing /W flags with /W4. This is what LLVM does. Failing to
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# remove other /W[0-4] flags will result in a warning about overriding a
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# previous flag.
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if (COMPILER_RT_HAS_W4_FLAG)
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string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
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string(REGEX REPLACE " /W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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append_string_if(COMPILER_RT_HAS_W4_FLAG /W4 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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else()
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append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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if(COMPILER_RT_ENABLE_WERROR)
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append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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endif()
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append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
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# Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
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if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
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add_definitions(-D__func__=__FUNCTION__)
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endif()
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# Provide some common commmandline flags for Sanitizer runtimes.
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if(NOT WIN32)
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append_list_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS)
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endif()
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append_list_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS)
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if(NOT COMPILER_RT_DEBUG AND NOT APPLE)
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append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS)
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endif()
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append_list_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_SANITIZE_SAFE_STACK_FLAG -fno-sanitize=safe-stack SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FVISIBILITY_INLINES_HIDDEN_FLAG -fvisibility-inlines-hidden SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_LTO_FLAG -fno-lto SANITIZER_COMMON_CFLAGS)
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# The following is a workaround for powerpc64le. This is the only architecture
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# that requires -fno-function-sections to work properly. If lacking, the ASan
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# Linux test function-sections-are-bad.cc fails with the following error:
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# 'undefined symbol: __sanitizer_unaligned_load32'.
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if(DEFINED TARGET_powerpc64le_CFLAGS)
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append_list_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections TARGET_powerpc64le_CFLAGS)
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endif()
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if(MSVC)
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# Replace the /M[DT][d] flags with /MT, and strip any definitions of _DEBUG,
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# which cause definition mismatches at link time.
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# FIXME: In fact, sanitizers should support both /MT and /MD, see PR20214.
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if(COMPILER_RT_HAS_MT_FLAG)
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foreach(flag_var
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CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
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CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
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CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
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CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
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string(REGEX REPLACE "/M[DT]d" "/MT" ${flag_var} "${${flag_var}}")
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string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
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string(REGEX REPLACE "/D_DEBUG" "" ${flag_var} "${${flag_var}}")
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endforeach()
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endif()
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append_list_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS)
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# VS 2015 (version 1900) added support for thread safe static initialization.
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# However, ASan interceptors run before CRT initialization, which causes the
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# new thread safe code to crash. Disable this feature for now.
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if (MSVC_VERSION GREATER 1899 OR "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
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list(APPEND SANITIZER_COMMON_CFLAGS /Zc:threadSafeInit-)
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endif()
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endif()
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append_list_if(COMPILER_RT_DEBUG -DSANITIZER_DEBUG=1 SANITIZER_COMMON_CFLAGS)
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# Build with optimization, unless we're in debug mode. If we're using MSVC,
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# always respect the optimization flags set by CMAKE_BUILD_TYPE instead.
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if(NOT COMPILER_RT_DEBUG AND NOT MSVC)
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list(APPEND SANITIZER_COMMON_CFLAGS -O3)
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endif()
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# Determine if we should restrict stack frame sizes.
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# Stack frames on PowerPC and Mips and in debug biuld can be much larger than
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# anticipated.
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# FIXME: Fix all sanitizers and add -Wframe-larger-than to
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# SANITIZER_COMMON_FLAGS
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if(COMPILER_RT_HAS_WFRAME_LARGER_THAN_FLAG AND NOT COMPILER_RT_DEBUG
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AND NOT ${COMPILER_RT_DEFAULT_TARGET_ARCH} MATCHES "powerpc|mips")
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set(SANITIZER_LIMIT_FRAME_SIZE TRUE)
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else()
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set(SANITIZER_LIMIT_FRAME_SIZE FALSE)
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endif()
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# Build sanitizer runtimes with debug info.
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if(COMPILER_RT_HAS_GLINE_TABLES_ONLY_FLAG AND NOT COMPILER_RT_DEBUG)
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list(APPEND SANITIZER_COMMON_CFLAGS -gline-tables-only)
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elseif(COMPILER_RT_HAS_G_FLAG)
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list(APPEND SANITIZER_COMMON_CFLAGS -g)
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elseif(MSVC)
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# Use /Z7 instead of /Zi for the asan runtime. This avoids the LNK4099
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# warning from the MS linker complaining that it can't find the 'vc140.pdb'
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# file used by our object library compilations.
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list(APPEND SANITIZER_COMMON_CFLAGS /Z7)
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS "/Z[i7I]" "/Z7")
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS_DEBUG "/Z[i7I]" "/Z7")
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llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELWITHDEBINFO "/Z[i7I]" "/Z7")
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endif()
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if(LLVM_ENABLE_MODULES)
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# Sanitizers cannot be built with -fmodules. The interceptors intentionally
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# don't include system headers, which is incompatible with modules.
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list(APPEND SANITIZER_COMMON_CFLAGS -fno-modules)
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endif()
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# Turn off several warnings.
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append_list_if(COMPILER_RT_HAS_WGNU_FLAG -Wno-gnu SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WVARIADIC_MACROS_FLAG -Wno-variadic-macros SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WC99_EXTENSIONS_FLAG -Wno-c99-extensions SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WNON_VIRTUAL_DTOR_FLAG -Wno-non-virtual-dtor SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WD4146_FLAG /wd4146 SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WD4291_FLAG /wd4291 SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WD4391_FLAG /wd4391 SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WD4722_FLAG /wd4722 SANITIZER_COMMON_CFLAGS)
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append_list_if(COMPILER_RT_HAS_WD4800_FLAG /wd4800 SANITIZER_COMMON_CFLAGS)
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# Warnings to turn off for all libraries, not just sanitizers.
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append_string_if(COMPILER_RT_HAS_WUNUSED_PARAMETER_FLAG -Wno-unused-parameter CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
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if (CMAKE_LINKER MATCHES "link.exe$")
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# Silence MSVC linker warnings caused by empty object files. The
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# sanitizer libraries intentionally use ifdefs that result in empty
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# files, rather than skipping these files in the build system.
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# Ideally, we would pass this flag only for the libraries that need
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# it, but CMake doesn't seem to have a way to set linker flags for
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# individual static libraries, so we enable the suppression flag for
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# the whole compiler-rt project.
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append("/IGNORE:4221" CMAKE_STATIC_LINKER_FLAGS)
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endif()
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add_subdirectory(include)
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set(COMPILER_RT_LIBCXX_PATH ${LLVM_MAIN_SRC_DIR}/projects/libcxx)
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if(EXISTS ${COMPILER_RT_LIBCXX_PATH}/)
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set(COMPILER_RT_HAS_LIBCXX_SOURCES TRUE)
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else()
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set(COMPILER_RT_HAS_LIBCXX_SOURCES FALSE)
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endif()
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set(COMPILER_RT_LLD_PATH ${LLVM_MAIN_SRC_DIR}/tools/lld)
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if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
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set(COMPILER_RT_HAS_LLD TRUE)
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else()
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set(COMPILER_RT_HAS_LLD FALSE)
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endif()
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pythonize_bool(COMPILER_RT_HAS_LLD)
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add_subdirectory(lib)
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if(COMPILER_RT_INCLUDE_TESTS)
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add_subdirectory(unittests)
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add_subdirectory(test)
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endif()
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