[DFSan] Update build rules for Makefile build
[blocksruntime.git] / CMakeLists.txt
blobe1a7a1f041865f35832d15f8365af86402ff0875
1 # CMake build for CompilerRT.
3 # This build assumes that CompilerRT is checked out into the
4 # 'projects/compiler-rt' inside of an LLVM tree.
5 # Standalone build system for CompilerRT is not yet ready.
7 # An important constraint of the build is that it only produces libraries
8 # based on the ability of the host toolchain to target various platforms.
10 # Check if compiler-rt is built as a standalone project.
11 if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
12   project(CompilerRT)
13   set(COMPILER_RT_STANDALONE_BUILD TRUE)
14 else()
15   set(COMPILER_RT_STANDALONE_BUILD FALSE)
16 endif()
18 # The CompilerRT build system requires CMake version 2.8.8 or higher in order
19 # to use its support for building convenience "libraries" as a collection of
20 # .o files. This is particularly useful in producing larger, more complex
21 # runtime libraries.
22 if (NOT MSVC)
23   cmake_minimum_required(VERSION 2.8.8)
24 else()
25   # Version 2.8.12.1 is required to build with Visual Studion 2013.
26   cmake_minimum_required(VERSION 2.8.12.1)
27 endif()
29 # FIXME: It may be removed when we use 2.8.12.
30 if(CMAKE_VERSION VERSION_LESS 2.8.12)
31   # Invalidate a couple of keywords.
32   set(cmake_2_8_12_INTERFACE)
33   set(cmake_2_8_12_PRIVATE)
34 else()
35   # Use ${cmake_2_8_12_KEYWORD} intead of KEYWORD in target_link_libraries().
36   set(cmake_2_8_12_INTERFACE INTERFACE)
37   set(cmake_2_8_12_PRIVATE PRIVATE)
38   if(POLICY CMP0022)
39     cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
40   endif()
41 endif()
43 # Top level target used to build all compiler-rt libraries.
44 add_custom_target(compiler-rt ALL)
46 if (NOT COMPILER_RT_STANDALONE_BUILD)
47   # Compute the Clang version from the LLVM version.
48   # FIXME: We should be able to reuse CLANG_VERSION variable calculated
49   #        in Clang cmake files, instead of copying the rules here.
50   string(REGEX MATCH "[0-9]+\\.[0-9]+(\\.[0-9]+)?" CLANG_VERSION
51          ${PACKAGE_VERSION})
52   # Setup the paths where compiler-rt runtimes and headers should be stored.
53   set(COMPILER_RT_OUTPUT_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR}/clang/${CLANG_VERSION})
54   set(COMPILER_RT_EXEC_OUTPUT_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
55   set(COMPILER_RT_INSTALL_PATH lib${LLVM_LIBDIR_SUFFIX}/clang/${CLANG_VERSION})
56   option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests."
57          ${LLVM_INCLUDE_TESTS})
58  option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered"
59         ${LLVM_ENABLE_WERROR})
60   # Use just-built Clang to compile/link tests.
61   set(COMPILER_RT_TEST_COMPILER ${LLVM_RUNTIME_OUTPUT_INTDIR}/clang)
62 else()
63   # Take output dir and install path from the user.
64   set(COMPILER_RT_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR} CACHE PATH
65     "Path where built compiler-rt libraries should be stored.")
66   set(COMPILER_RT_EXEC_OUTPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/bin CACHE PATH
67     "Path where built compiler-rt executables should be stored.")
68   set(COMPILER_RT_INSTALL_PATH ${CMAKE_INSTALL_PREFIX} CACHE PATH
69     "Path where built compiler-rt libraries should be installed.")
70   option(COMPILER_RT_INCLUDE_TESTS "Generate and build compiler-rt unit tests." OFF)
71   option(COMPILER_RT_ENABLE_WERROR "Fail and stop if warning is triggered" OFF)
72   # Use a host compiler to compile/link tests.
73   set(COMPILER_RT_TEST_COMPILER ${CMAKE_C_COMPILER} CACHE PATH "Compiler to use for testing")
75   if (NOT LLVM_CONFIG_PATH)
76     find_program(LLVM_CONFIG_PATH "llvm-config"
77                  DOC "Path to llvm-config binary")
78     if (NOT LLVM_CONFIG_PATH)
79       message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH")
80     endif()
81   endif()
82   execute_process(
83     COMMAND ${LLVM_CONFIG_PATH} "--obj-root" "--bindir" "--libdir" "--src-root"
84     RESULT_VARIABLE HAD_ERROR
85     OUTPUT_VARIABLE CONFIG_OUTPUT)
86   if (HAD_ERROR)
87     message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
88   endif()
89   string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT})
90   list(GET CONFIG_OUTPUT 0 LLVM_BINARY_DIR)
91   list(GET CONFIG_OUTPUT 1 LLVM_TOOLS_BINARY_DIR)
92   list(GET CONFIG_OUTPUT 2 LLVM_LIBRARY_DIR)
93   list(GET CONFIG_OUTPUT 3 LLVM_MAIN_SRC_DIR)
95   # Make use of LLVM CMake modules.
96   file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
97   set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/share/llvm/cmake")
98   list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
99   # Get some LLVM variables from LLVMConfig.
100   include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
102   set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib)
104   # Find Python interpreter.
105   set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5)
106   include(FindPythonInterp)
107   if(NOT PYTHONINTERP_FOUND)
108     message(FATAL_ERROR "
109       Unable to find Python interpreter required testing. Please install Python
110       or specify the PYTHON_EXECUTABLE CMake variable.")
111   endif()
113   # Define default arguments to lit.
114   set(LIT_ARGS_DEFAULT "-sv")
115   if (MSVC OR XCODE)
116     set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
117   endif()
118   set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
119 endif()
121 if("${COMPILER_RT_TEST_COMPILER}" MATCHES "clang[+]*$")
122   set(COMPILER_RT_TEST_COMPILER_ID Clang)
123 else()
124   set(COMPILER_RT_TEST_COMPILER_ID GNU)
125 endif()
127 string(TOLOWER ${CMAKE_SYSTEM_NAME} COMPILER_RT_OS_DIR)
128 set(COMPILER_RT_LIBRARY_OUTPUT_DIR
129   ${COMPILER_RT_OUTPUT_DIR}/lib/${COMPILER_RT_OS_DIR})
130 set(COMPILER_RT_LIBRARY_INSTALL_DIR
131   ${COMPILER_RT_INSTALL_PATH}/lib/${COMPILER_RT_OS_DIR})
133 # Add path for custom compiler-rt modules.
134 set(CMAKE_MODULE_PATH
135   "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
136   "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules"
137   ${CMAKE_MODULE_PATH}
138   )
139 include(CompilerRTUtils)
141 set(COMPILER_RT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
142 set(COMPILER_RT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
143 # Setup custom SDK sysroots.
144 set(COMPILER_RT_DARWIN_SDK_SYSROOT ${COMPILER_RT_SOURCE_DIR}/SDKs/darwin)
145 set(COMPILER_RT_LINUX_SDK_SYSROOT ${COMPILER_RT_SOURCE_DIR}/SDKs/linux)
147 set(COMPILER_RT_EXTRA_ANDROID_HEADERS ${COMPILER_RT_SOURCE_DIR}/android/include)
149 # Detect whether the current target platform is 32-bit or 64-bit, and setup
150 # the correct commandline flags needed to attempt to target 32-bit and 64-bit.
151 if (NOT CMAKE_SIZEOF_VOID_P EQUAL 4 AND
152     NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
153   message(FATAL_ERROR "Please use architecture with 4 or 8 byte pointers.")
154 endif()
155 if (NOT MSVC)
156   set(TARGET_64_BIT_CFLAGS "-m64")
157   set(TARGET_32_BIT_CFLAGS "-m32")
158 else()
159   set(TARGET_64_BIT_CFLAGS "")
160   set(TARGET_32_BIT_CFLAGS "")
161 endif()
163 # List of architectures we can target.
164 set(COMPILER_RT_SUPPORTED_ARCH)
166 function(get_target_flags_for_arch arch out_var)
167   list(FIND COMPILER_RT_SUPPORTED_ARCH ${arch} ARCH_INDEX)
168   if(ARCH_INDEX EQUAL -1)
169     message(FATAL_ERROR "Unsupported architecture: ${arch}")
170   else()
171     set(${out_var} ${TARGET_${arch}_CFLAGS} PARENT_SCOPE)
172   endif()
173 endfunction()
175 # Try to compile a very simple source file to ensure we can target the given
176 # platform. We use the results of these tests to build only the various target
177 # runtime libraries supported by our current compilers cross-compiling
178 # abilities.
179 set(SIMPLE_SOURCE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/simple.cc)
180 file(WRITE ${SIMPLE_SOURCE} "#include <stdlib.h>\n#include <limits>\nint main() {}\n")
182 # test_target_arch(<arch> <target flags...>)
183 # Sets the target flags for a given architecture and determines if this
184 # architecture is supported by trying to build a simple file.
185 macro(test_target_arch arch)
186   set(TARGET_${arch}_CFLAGS ${ARGN})
187   try_compile(CAN_TARGET_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE}
188               COMPILE_DEFINITIONS "${TARGET_${arch}_CFLAGS}"
189               CMAKE_FLAGS "-DCMAKE_EXE_LINKER_FLAGS:STRING=${TARGET_${arch}_CFLAGS}")
190   if(${CAN_TARGET_${arch}})
191     list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch})
192   endif()
193 endmacro()
195 if(ANDROID_COMMON_FLAGS)
196   test_target_arch(arm_android "${ANDROID_COMMON_FLAGS}")
197 else()
198   if("${LLVM_NATIVE_ARCH}" STREQUAL "X86")
199     if (NOT MSVC)
200       test_target_arch(x86_64 ${TARGET_64_BIT_CFLAGS})
201     endif()
202     test_target_arch(i386 ${TARGET_32_BIT_CFLAGS})
203   elseif("${LLVM_NATIVE_ARCH}" STREQUAL "PowerPC")
204     test_target_arch(powerpc64 ${TARGET_64_BIT_CFLAGS})
205   elseif("${LLVM_NATIVE_ARCH}" STREQUAL "ARM")
206     test_target_arch(arm "")
207   endif()
208 endif()
210 # We only support running instrumented tests when we're not cross compiling
211 # and target a unix-like system. We can run tests on Android even when we are
212 # cross-compiling.
213 if(("${CMAKE_HOST_SYSTEM}" STREQUAL "${CMAKE_SYSTEM}" AND UNIX) OR ANDROID)
214   option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" ON)
215 else()
216   option(COMPILER_RT_CAN_EXECUTE_TESTS "Can we execute instrumented tests" OFF)
217 endif()
219 # Check if compiler-rt is built with libc++.
220 find_flag_in_string("${CMAKE_CXX_FLAGS}" "-stdlib=libc++"
221                     COMPILER_RT_USES_LIBCXX)
223 function(filter_available_targets out_var)
224   set(archs)
225   foreach(arch ${ARGN})
226     list(FIND COMPILER_RT_SUPPORTED_ARCH ${arch} ARCH_INDEX)
227     if(NOT (ARCH_INDEX EQUAL -1) AND CAN_TARGET_${arch})
228       list(APPEND archs ${arch})
229     endif()
230   endforeach()
231   set(${out_var} ${archs} PARENT_SCOPE)
232 endfunction()
234 option(COMPILER_RT_DEBUG "Build runtimes with full debug info" OFF)
235 # COMPILER_RT_DEBUG_PYBOOL is used by lit.common.configured.in.
236 pythonize_bool(COMPILER_RT_DEBUG)
238 option(COMPILER_RT_BUILD_SHARED_ASAN "Build shared version of AddressSanitizer runtime" OFF)
240 #================================
241 # Setup Compiler Flags
242 #================================
243 include(config-ix)
245 if(MSVC)
246   append_string_if(COMPILER_RT_HAS_W3_FLAG /W3 CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
247 else()
248   append_string_if(COMPILER_RT_HAS_WALL_FLAG -Wall CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
249 endif()
250 if(COMPILER_RT_ENABLE_WERROR)
251   append_string_if(COMPILER_RT_HAS_WERROR_FLAG -Werror CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
252   append_string_if(COMPILER_RT_HAS_WX_FLAG /WX CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
253 endif()
255 append_string_if(COMPILER_RT_HAS_STD_CXX11_FLAG -std=c++11 CMAKE_CXX_FLAGS)
257 # Emulate C99 and C++11's __func__ for MSVC prior to 2013 CTP.
258 if(NOT COMPILER_RT_HAS_FUNC_SYMBOL)
259   add_definitions(-D__func__=__FUNCTION__)
260 endif()
262 # Provide some common commmandline flags for Sanitizer runtimes.
263 append_if(COMPILER_RT_HAS_FPIC_FLAG -fPIC SANITIZER_COMMON_CFLAGS)
264 append_if(COMPILER_RT_HAS_FNO_BUILTIN_FLAG -fno-builtin SANITIZER_COMMON_CFLAGS)
265 append_if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG -fno-exceptions SANITIZER_COMMON_CFLAGS)
266 append_if(COMPILER_RT_HAS_FOMIT_FRAME_POINTER_FLAG -fomit-frame-pointer SANITIZER_COMMON_CFLAGS)
267 append_if(COMPILER_RT_HAS_FUNWIND_TABLES_FLAG -funwind-tables SANITIZER_COMMON_CFLAGS)
268 append_if(COMPILER_RT_HAS_FNO_STACK_PROTECTOR_FLAG -fno-stack-protector SANITIZER_COMMON_CFLAGS)
269 append_if(COMPILER_RT_HAS_FVISIBILITY_HIDDEN_FLAG -fvisibility=hidden SANITIZER_COMMON_CFLAGS)
270 append_if(COMPILER_RT_HAS_FNO_FUNCTION_SECTIONS_FLAG -fno-function-sections SANITIZER_COMMON_CFLAGS)
272 if(MSVC)
273   # Remove /MD flag so that it doesn't conflict with /MT.
274   if(COMPILER_RT_HAS_MT_FLAG)
275     string(REGEX REPLACE "(^| ) */MDd? *( |$)" "\\1 \\2" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
276     list(APPEND SANITIZER_COMMON_CFLAGS /MT)
277   endif()
278   append_if(COMPILER_RT_HAS_Oy_FLAG /Oy- SANITIZER_COMMON_CFLAGS)
279   append_if(COMPILER_RT_HAS_GS_FLAG /GS- SANITIZER_COMMON_CFLAGS)
280 endif()
282 # Build with optimization, unless we're in debug mode. If we're using MSVC,
283 # always respect the optimization flags set by CMAKE_BUILD_TYPE instead.
284 if(NOT COMPILER_RT_DEBUG AND NOT MSVC)
285   list(APPEND SANITIZER_COMMON_CFLAGS -O3)
286 endif()
288 # Build sanitizer runtimes with debug info.
289 if(COMPILER_RT_HAS_GLINE_TABLES_ONLY_FLAG)
290   list(APPEND SANITIZER_COMMON_CFLAGS -gline-tables-only)
291 elseif(COMPILER_RT_HAS_G_FLAG)
292   list(APPEND SANITIZER_COMMON_CFLAGS -g)
293 elseif(COMPILER_RT_HAS_Zi_FLAG)
294   list(APPEND SANITIZER_COMMON_CFLAGS /Zi)
295 endif()
297 # Turn off several warnings.
298 append_if(COMPILER_RT_HAS_WNO_GNU_FLAG -Wno-gnu SANITIZER_COMMON_CFLAGS)
299 append_if(COMPILER_RT_HAS_WNO_VARIADIC_MACROS_FLAG -Wno-variadic-macros SANITIZER_COMMON_CFLAGS)
300 append_if(COMPILER_RT_HAS_WNO_C99_EXTENSIONS_FLAG -Wno-c99-extensions SANITIZER_COMMON_CFLAGS)
301 append_if(COMPILER_RT_HAS_WNO_NON_VIRTUAL_DTOR_FLAG -Wno-non-virtual-dtor SANITIZER_COMMON_CFLAGS)
302 append_if(COMPILER_RT_HAS_WD4722_FLAG /wd4722 SANITIZER_COMMON_CFLAGS)
304 if(APPLE)
305   # Obtain the iOS Simulator SDK path from xcodebuild.
306   execute_process(
307     COMMAND xcodebuild -version -sdk iphonesimulator Path
308     OUTPUT_VARIABLE IOSSIM_SDK_DIR
309     OUTPUT_STRIP_TRAILING_WHITESPACE
310   )
311   string(REGEX MATCH "-mmacosx-version-min="
312          MACOSX_VERSION_MIN_FLAG "${CMAKE_CXX_FLAGS}")
313   set(SANITIZER_COMMON_SUPPORTED_DARWIN_OS osx)
314   if (IOSSIM_SDK_DIR AND NOT MACOSX_VERSION_MIN_FLAG)
315     list(APPEND SANITIZER_COMMON_SUPPORTED_DARWIN_OS iossim)
316   endif()
318   if(COMPILER_RT_USES_LIBCXX)
319     set(SANITIZER_MIN_OSX_VERSION 10.7)
320   else()
321     set(SANITIZER_MIN_OSX_VERSION 10.6)
322   endif()
323   set(DARWIN_osx_CFLAGS -mmacosx-version-min=${SANITIZER_MIN_OSX_VERSION})
324   set(DARWIN_iossim_CFLAGS 
325     -mios-simulator-version-min=7.0 -isysroot ${IOSSIM_SDK_DIR})
326   set(DARWIN_osx_LINKFLAGS)
327   set(DARWIN_iossim_LINKFLAGS
328     -Wl,-ios_simulator_version_min,7.0.0
329     -mios-simulator-version-min=7.0
330     -isysroot ${IOSSIM_SDK_DIR})
331 endif()
333 # Architectures supported by Sanitizer runtimes. Specific sanitizers may
334 # support only subset of these (e.g. TSan works on x86_64 only).
335 filter_available_targets(SANITIZER_COMMON_SUPPORTED_ARCH
336   x86_64 i386 powerpc64 arm)
337 filter_available_targets(ASAN_SUPPORTED_ARCH x86_64 i386 powerpc64)
338 filter_available_targets(DFSAN_SUPPORTED_ARCH x86_64)
339 filter_available_targets(LSAN_SUPPORTED_ARCH x86_64)
340 filter_available_targets(MSAN_SUPPORTED_ARCH x86_64)
341 filter_available_targets(PROFILE_SUPPORTED_ARCH x86_64 i386 arm)
342 filter_available_targets(TSAN_SUPPORTED_ARCH x86_64)
343 filter_available_targets(UBSAN_SUPPORTED_ARCH x86_64 i386)
345 add_subdirectory(include)
347 set(COMPILER_RT_LIBCXX_PATH ${LLVM_MAIN_SRC_DIR}/projects/libcxx)
348 if(EXISTS ${COMPILER_RT_LIBCXX_PATH}/)
349   set(COMPILER_RT_HAS_LIBCXX_SOURCES TRUE)
350 else()
351   set(COMPILER_RT_HAS_LIBCXX_SOURCES FALSE)
352 endif()
354 add_subdirectory(lib)
356 if(COMPILER_RT_INCLUDE_TESTS)
357   add_subdirectory(unittests)
358 endif()
359 add_subdirectory(test)