if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
project(CompilerRT C CXX ASM)
set(COMPILER_RT_STANDALONE_BUILD TRUE)
-else()
- set(COMPILER_RT_STANDALONE_BUILD FALSE)
endif()
-# The CompilerRT build system requires CMake version 2.8.8 or higher in order
-# to use its support for building convenience "libraries" as a collection of
-# .o files. This is particularly useful in producing larger, more complex
-# runtime libraries.
-if (NOT MSVC)
- cmake_minimum_required(VERSION 2.8.8)
-else()
- # Version 2.8.12.1 is required to build with Visual Studio 2013.
- cmake_minimum_required(VERSION 2.8.12.1)
-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)
-# FIXME: It may be removed when we use 2.8.12.
-if(CMAKE_VERSION VERSION_LESS 2.8.12)
- # Invalidate a couple of keywords.
- set(cmake_2_8_12_INTERFACE)
- set(cmake_2_8_12_PRIVATE)
-else()
- # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
- set(cmake_2_8_12_INTERFACE INTERFACE)
- set(cmake_2_8_12_PRIVATE PRIVATE)
- if(POLICY CMP0022)
- cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
- endif()
-endif()
+# Add path for custom compiler-rt modules.
+list(INSERT CMAKE_MODULE_PATH 0
+ "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
+ "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
+ )
-# Top level target used to build all compiler-rt libraries.
-add_custom_target(compiler-rt ALL)
+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 (NOT COMPILER_RT_STANDALONE_BUILD)
- # Compute the Clang version from the LLVM version.
- # FIXME: We should be able to reuse CLANG_VERSION variable calculated
- # in Clang cmake files, instead of copying the rules here.
- string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
- ${PACKAGE_VERSION})
- # Setup the paths where compiler-rt runtimes and headers should be stored.
- set(COMPILER_RT_OUTPUT_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/clang/${CLANG_VERSION})
- set(COMPILER_RT_EXEC_OUTPUT_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
- set(COMPILER_RT_INSTALL_PATH lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION})
- option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests."
- ${LLVM_INCLUDE_TESTS})
- option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered"
- ${LLVM_ENABLE_WERROR})
- # Use just-built Clang to compile/link tests on all platforms, except for
- # Windows where we need to use clang-cl instead.
- if(NOT MSVC)
- set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang)
- set(COMPILER_RT_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++)
- else()
- set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang.exe)
- set(COMPILER_RT_TEST_CXX_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang++.exe)
- endif()
-else()
- # Take output dir and install path from the user.
- set(COMPILER_RT_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR} CACHE PATH
- "Path where built compiler-rt libraries should be stored.")
- set(COMPILER_RT_EXEC_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin CACHE PATH
- "Path where built compiler-rt executables should be stored.")
- set(COMPILER_RT_INSTALL_PATH ${CMAKE_INSTALL_PREFIX} CACHE PATH
- "Path where built compiler-rt libraries should be installed.")
- option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests." OFF)
- option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered" OFF)
- # Use a host compiler to compile/link tests.
- set(COMPILER_RT_TEST_COMPILER ${CMAKE_C_COMPILER} CACHE PATH "Compiler to use for testing")
- set(COMPILER_RT_TEST_CXX_COMPILER ${CMAKE_CXX_COMPILER} CACHE PATH "C++ Compiler to use for testing")
-
+if (COMPILER_RT_STANDALONE_BUILD)
if (NOT LLVM_CONFIG_PATH)
find_program(LLVM_CONFIG_PATH "llvm-config"
DOC "Path to llvm-config binary")
# 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}/share/llvm/cmake")
+ 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_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
endif()
-if("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[+]*$")
- set(COMPILER_RT_TEST_COMPILER_ID Clang)
-elseif("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang.*.exe$")
- set(COMPILER_RT_TEST_COMPILER_ID Clang)
-else()
- set(COMPILER_RT_TEST_COMPILER_ID GNU)
-endif()
-
set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${TARGET_TRIPLE} CACHE STRING
"Default triple for which compiler-rt runtimes will be built.")
if(DEFINED COMPILER_RT_TEST_TARGET_TRIPLE)
else()
set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE FALSE)
endif()
-
if ("${COMPILER_RT_DEFAULT_TARGET_ABI}" STREQUAL "androideabi")
set(ANDROID 1)
endif()
-
-string(TOLOWER ${CMAKE_SYSTEM_NAME} COMPILER_RT_OS_DIR)
-set(COMPILER_RT_LIBRARY_OUTPUT_DIR
- ${COMPILER_RT_OUTPUT_DIR}/lib/${COMPILER_RT_OS_DIR})
-set(COMPILER_RT_LIBRARY_INSTALL_DIR
- ${COMPILER_RT_INSTALL_PATH}/lib/${COMPILER_RT_OS_DIR})
-
-# Add path for custom compiler-rt modules.
-set(CMAKE_MODULE_PATH
- "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
- "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
- ${CMAKE_MODULE_PATH}
- )
include(CompilerRTUtils)
set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
#================================
# Setup Compiler Flags
#================================
-include(CheckIncludeFile)
-check_include_file(unwind.h HAVE_UNWIND_H)
include(config-ix)
if(MSVC)
- append_string_if(COMPILER_RT_HAS_W3_FLAG /W3 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
+ # Override any existing /W flags with /W4. This is what LLVM does. Failing to
+ # remove other /W[0-4] flags will result in a warning about overriding a
+ # previous flag.
+ if (COMPILER_RT_HAS_W4_FLAG)
+ string(REGEX REPLACE " /W[0-4]" "" CMAKE_C_FLAGS "${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()
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)
-append_list_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer 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)
# 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}}")
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)
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()
projects / rustc.git / blobdiff