1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/webrtc/trunk/testing/gtest/cmake/internal_utils.cmake Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,227 @@
1.4 +# Defines functions and macros useful for building Google Test and
1.5 +# Google Mock.
1.6 +#
1.7 +# Note:
1.8 +#
1.9 +# - This file will be run twice when building Google Mock (once via
1.10 +# Google Test's CMakeLists.txt, and once via Google Mock's).
1.11 +# Therefore it shouldn't have any side effects other than defining
1.12 +# the functions and macros.
1.13 +#
1.14 +# - The functions/macros defined in this file may depend on Google
1.15 +# Test and Google Mock's option() definitions, and thus must be
1.16 +# called *after* the options have been defined.
1.17 +
1.18 +# Tweaks CMake's default compiler/linker settings to suit Google Test's needs.
1.19 +#
1.20 +# This must be a macro(), as inside a function string() can only
1.21 +# update variables in the function scope.
1.22 +macro(fix_default_compiler_settings_)
1.23 + if (MSVC)
1.24 + # For MSVC, CMake sets certain flags to defaults we want to override.
1.25 + # This replacement code is taken from sample in the CMake Wiki at
1.26 + # http://www.cmake.org/Wiki/CMake_FAQ#Dynamic_Replace.
1.27 + foreach (flag_var
1.28 + CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
1.29 + CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
1.30 + if (NOT BUILD_SHARED_LIBS AND NOT gtest_force_shared_crt)
1.31 + # When Google Test is built as a shared library, it should also use
1.32 + # shared runtime libraries. Otherwise, it may end up with multiple
1.33 + # copies of runtime library data in different modules, resulting in
1.34 + # hard-to-find crashes. When it is built as a static library, it is
1.35 + # preferable to use CRT as static libraries, as we don't have to rely
1.36 + # on CRT DLLs being available. CMake always defaults to using shared
1.37 + # CRT libraries, so we override that default here.
1.38 + string(REPLACE "/MD" "-MT" ${flag_var} "${${flag_var}}")
1.39 + endif()
1.40 +
1.41 + # We prefer more strict warning checking for building Google Test.
1.42 + # Replaces /W3 with /W4 in defaults.
1.43 + string(REPLACE "/W3" "-W4" ${flag_var} "${${flag_var}}")
1.44 + endforeach()
1.45 + endif()
1.46 +endmacro()
1.47 +
1.48 +# Defines the compiler/linker flags used to build Google Test and
1.49 +# Google Mock. You can tweak these definitions to suit your need. A
1.50 +# variable's value is empty before it's explicitly assigned to.
1.51 +macro(config_compiler_and_linker)
1.52 + if (NOT gtest_disable_pthreads)
1.53 + # Defines CMAKE_USE_PTHREADS_INIT and CMAKE_THREAD_LIBS_INIT.
1.54 + find_package(Threads)
1.55 + endif()
1.56 +
1.57 + fix_default_compiler_settings_()
1.58 + if (MSVC)
1.59 + # Newlines inside flags variables break CMake's NMake generator.
1.60 + # TODO(vladl@google.com): Add -RTCs and -RTCu to debug builds.
1.61 + set(cxx_base_flags "-GS -W4 -WX -wd4127 -wd4251 -wd4275 -nologo -J -Zi")
1.62 + if (MSVC_VERSION LESS 1400)
1.63 + # Suppress spurious warnings MSVC 7.1 sometimes issues.
1.64 + # Forcing value to bool.
1.65 + set(cxx_base_flags "${cxx_base_flags} -wd4800")
1.66 + # Copy constructor and assignment operator could not be generated.
1.67 + set(cxx_base_flags "${cxx_base_flags} -wd4511 -wd4512")
1.68 + # Compatibility warnings not applicable to Google Test.
1.69 + # Resolved overload was found by argument-dependent lookup.
1.70 + set(cxx_base_flags "${cxx_base_flags} -wd4675")
1.71 + endif()
1.72 + set(cxx_base_flags "${cxx_base_flags} -D_UNICODE -DUNICODE -DWIN32 -D_WIN32")
1.73 + set(cxx_base_flags "${cxx_base_flags} -DSTRICT -DWIN32_LEAN_AND_MEAN")
1.74 + set(cxx_exception_flags "-EHsc -D_HAS_EXCEPTIONS=1")
1.75 + set(cxx_no_exception_flags "-D_HAS_EXCEPTIONS=0")
1.76 + set(cxx_no_rtti_flags "-GR-")
1.77 + elseif (CMAKE_COMPILER_IS_GNUCXX)
1.78 + set(cxx_base_flags "-Wall -Wshadow")
1.79 + set(cxx_exception_flags "-fexceptions")
1.80 + set(cxx_no_exception_flags "-fno-exceptions")
1.81 + # Until version 4.3.2, GCC doesn't define a macro to indicate
1.82 + # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
1.83 + # explicitly.
1.84 + set(cxx_no_rtti_flags "-fno-rtti -DGTEST_HAS_RTTI=0")
1.85 + set(cxx_strict_flags
1.86 + "-Wextra -Wno-unused-parameter -Wno-missing-field-initializers")
1.87 + elseif (CMAKE_CXX_COMPILER_ID STREQUAL "SunPro")
1.88 + set(cxx_exception_flags "-features=except")
1.89 + # Sun Pro doesn't provide macros to indicate whether exceptions and
1.90 + # RTTI are enabled, so we define GTEST_HAS_* explicitly.
1.91 + set(cxx_no_exception_flags "-features=no%except -DGTEST_HAS_EXCEPTIONS=0")
1.92 + set(cxx_no_rtti_flags "-features=no%rtti -DGTEST_HAS_RTTI=0")
1.93 + elseif (CMAKE_CXX_COMPILER_ID STREQUAL "VisualAge" OR
1.94 + CMAKE_CXX_COMPILER_ID STREQUAL "XL")
1.95 + # CMake 2.8 changes Visual Age's compiler ID to "XL".
1.96 + set(cxx_exception_flags "-qeh")
1.97 + set(cxx_no_exception_flags "-qnoeh")
1.98 + # Until version 9.0, Visual Age doesn't define a macro to indicate
1.99 + # whether RTTI is enabled. Therefore we define GTEST_HAS_RTTI
1.100 + # explicitly.
1.101 + set(cxx_no_rtti_flags "-qnortti -DGTEST_HAS_RTTI=0")
1.102 + elseif (CMAKE_CXX_COMPILER_ID STREQUAL "HP")
1.103 + set(cxx_base_flags "-AA -mt")
1.104 + set(cxx_exception_flags "-DGTEST_HAS_EXCEPTIONS=1")
1.105 + set(cxx_no_exception_flags "+noeh -DGTEST_HAS_EXCEPTIONS=0")
1.106 + # RTTI can not be disabled in HP aCC compiler.
1.107 + set(cxx_no_rtti_flags "")
1.108 + endif()
1.109 +
1.110 + if (CMAKE_USE_PTHREADS_INIT) # The pthreads library is available and allowed.
1.111 + set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=1")
1.112 + else()
1.113 + set(cxx_base_flags "${cxx_base_flags} -DGTEST_HAS_PTHREAD=0")
1.114 + endif()
1.115 +
1.116 + # For building gtest's own tests and samples.
1.117 + set(cxx_exception "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_exception_flags}")
1.118 + set(cxx_no_exception
1.119 + "${CMAKE_CXX_FLAGS} ${cxx_base_flags} ${cxx_no_exception_flags}")
1.120 + set(cxx_default "${cxx_exception}")
1.121 + set(cxx_no_rtti "${cxx_default} ${cxx_no_rtti_flags}")
1.122 + set(cxx_use_own_tuple "${cxx_default} -DGTEST_USE_OWN_TR1_TUPLE=1")
1.123 +
1.124 + # For building the gtest libraries.
1.125 + set(cxx_strict "${cxx_default} ${cxx_strict_flags}")
1.126 +endmacro()
1.127 +
1.128 +# Defines the gtest & gtest_main libraries. User tests should link
1.129 +# with one of them.
1.130 +function(cxx_library_with_type name type cxx_flags)
1.131 + # type can be either STATIC or SHARED to denote a static or shared library.
1.132 + # ARGN refers to additional arguments after 'cxx_flags'.
1.133 + add_library(${name} ${type} ${ARGN})
1.134 + set_target_properties(${name}
1.135 + PROPERTIES
1.136 + COMPILE_FLAGS "${cxx_flags}")
1.137 + if (BUILD_SHARED_LIBS OR type STREQUAL "SHARED")
1.138 + set_target_properties(${name}
1.139 + PROPERTIES
1.140 + COMPILE_DEFINITIONS "GTEST_CREATE_SHARED_LIBRARY=1")
1.141 + endif()
1.142 + if (CMAKE_USE_PTHREADS_INIT)
1.143 + target_link_libraries(${name} ${CMAKE_THREAD_LIBS_INIT})
1.144 + endif()
1.145 +endfunction()
1.146 +
1.147 +########################################################################
1.148 +#
1.149 +# Helper functions for creating build targets.
1.150 +
1.151 +function(cxx_shared_library name cxx_flags)
1.152 + cxx_library_with_type(${name} SHARED "${cxx_flags}" ${ARGN})
1.153 +endfunction()
1.154 +
1.155 +function(cxx_library name cxx_flags)
1.156 + cxx_library_with_type(${name} "" "${cxx_flags}" ${ARGN})
1.157 +endfunction()
1.158 +
1.159 +# cxx_executable_with_flags(name cxx_flags libs srcs...)
1.160 +#
1.161 +# creates a named C++ executable that depends on the given libraries and
1.162 +# is built from the given source files with the given compiler flags.
1.163 +function(cxx_executable_with_flags name cxx_flags libs)
1.164 + add_executable(${name} ${ARGN})
1.165 + if (cxx_flags)
1.166 + set_target_properties(${name}
1.167 + PROPERTIES
1.168 + COMPILE_FLAGS "${cxx_flags}")
1.169 + endif()
1.170 + if (BUILD_SHARED_LIBS)
1.171 + set_target_properties(${name}
1.172 + PROPERTIES
1.173 + COMPILE_DEFINITIONS "GTEST_LINKED_AS_SHARED_LIBRARY=1")
1.174 + endif()
1.175 + # To support mixing linking in static and dynamic libraries, link each
1.176 + # library in with an extra call to target_link_libraries.
1.177 + foreach (lib "${libs}")
1.178 + target_link_libraries(${name} ${lib})
1.179 + endforeach()
1.180 +endfunction()
1.181 +
1.182 +# cxx_executable(name dir lib srcs...)
1.183 +#
1.184 +# creates a named target that depends on the given libs and is built
1.185 +# from the given source files. dir/name.cc is implicitly included in
1.186 +# the source file list.
1.187 +function(cxx_executable name dir libs)
1.188 + cxx_executable_with_flags(
1.189 + ${name} "${cxx_default}" "${libs}" "${dir}/${name}.cc" ${ARGN})
1.190 +endfunction()
1.191 +
1.192 +# Sets PYTHONINTERP_FOUND and PYTHON_EXECUTABLE.
1.193 +find_package(PythonInterp)
1.194 +
1.195 +# cxx_test_with_flags(name cxx_flags libs srcs...)
1.196 +#
1.197 +# creates a named C++ test that depends on the given libs and is built
1.198 +# from the given source files with the given compiler flags.
1.199 +function(cxx_test_with_flags name cxx_flags libs)
1.200 + cxx_executable_with_flags(${name} "${cxx_flags}" "${libs}" ${ARGN})
1.201 + add_test(${name} ${name})
1.202 +endfunction()
1.203 +
1.204 +# cxx_test(name libs srcs...)
1.205 +#
1.206 +# creates a named test target that depends on the given libs and is
1.207 +# built from the given source files. Unlike cxx_test_with_flags,
1.208 +# test/name.cc is already implicitly included in the source file list.
1.209 +function(cxx_test name libs)
1.210 + cxx_test_with_flags("${name}" "${cxx_default}" "${libs}"
1.211 + "test/${name}.cc" ${ARGN})
1.212 +endfunction()
1.213 +
1.214 +# py_test(name)
1.215 +#
1.216 +# creates a Python test with the given name whose main module is in
1.217 +# test/name.py. It does nothing if Python is not installed.
1.218 +function(py_test name)
1.219 + # We are not supporting Python tests on Linux yet as they consider
1.220 + # all Linux environments to be google3 and try to use google3 features.
1.221 + if (PYTHONINTERP_FOUND)
1.222 + # ${CMAKE_BINARY_DIR} is known at configuration time, so we can
1.223 + # directly bind it from cmake. ${CTEST_CONFIGURATION_TYPE} is known
1.224 + # only at ctest runtime (by calling ctest -c <Configuration>), so
1.225 + # we have to escape $ to delay variable substitution here.
1.226 + add_test(${name}
1.227 + ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/test/${name}.py
1.228 + --build_dir=${CMAKE_CURRENT_BINARY_DIR}/\${CTEST_CONFIGURATION_TYPE})
1.229 + endif()
1.230 +endfunction()
