diff options
Diffstat (limited to 'Source/cmake/OptionsCommon.cmake')
| -rw-r--r-- | Source/cmake/OptionsCommon.cmake | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/Source/cmake/OptionsCommon.cmake b/Source/cmake/OptionsCommon.cmake new file mode 100644 index 000000000..afceb4efa --- /dev/null +++ b/Source/cmake/OptionsCommon.cmake @@ -0,0 +1,281 @@ +add_definitions(-DBUILDING_WITH_CMAKE=1) +add_definitions(-DHAVE_CONFIG_H=1) + +# CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS only matters with GCC >= 4.7.0. Since this +# version, -P does not output empty lines, which currently breaks make_names.pl in +# WebCore. Investigating whether make_names.pl should be changed instead is left as an exercise to +# the reader. +if (MSVC) + # FIXME: Some codegenerators don't support paths with spaces. So use the executable name only. + get_filename_component(CODE_GENERATOR_PREPROCESSOR_EXECUTABLE ${CMAKE_CXX_COMPILER} ABSOLUTE) + + set(CODE_GENERATOR_PREPROCESSOR_ARGUMENTS "/nologo /EP") + set(CODE_GENERATOR_PREPROCESSOR "\"${CODE_GENERATOR_PREPROCESSOR_EXECUTABLE}\" ${CODE_GENERATOR_PREPROCESSOR_ARGUMENTS}") + + set(CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS ${CODE_GENERATOR_PREPROCESSOR}) +else () + set(CODE_GENERATOR_PREPROCESSOR_EXECUTABLE ${CMAKE_CXX_COMPILER}) + + set(CODE_GENERATOR_PREPROCESSOR_ARGUMENTS "-E -P -x c++") + set(CODE_GENERATOR_PREPROCESSOR "${CODE_GENERATOR_PREPROCESSOR_EXECUTABLE} ${CODE_GENERATOR_PREPROCESSOR_ARGUMENTS}") + + set(CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS_ARGUMENTS "-E -x c++") + set(CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS "${CODE_GENERATOR_PREPROCESSOR_EXECUTABLE} ${CODE_GENERATOR_PREPROCESSOR_WITH_LINEMARKERS_ARGUMENTS}") +endif () + +option(USE_THIN_ARCHIVES "Produce all static libraries as thin archives" ON) +if (USE_THIN_ARCHIVES) + execute_process(COMMAND ${CMAKE_AR} -V OUTPUT_VARIABLE AR_VERSION) + if ("${AR_VERSION}" MATCHES "^GNU ar") + set(CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> crT <TARGET> <LINK_FLAGS> <OBJECTS>") + set(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> crT <TARGET> <LINK_FLAGS> <OBJECTS>") + set(CMAKE_CXX_ARCHIVE_APPEND "<CMAKE_AR> rT <TARGET> <LINK_FLAGS> <OBJECTS>") + set(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> rT <TARGET> <LINK_FLAGS> <OBJECTS>") + endif () +endif () + +set_property(GLOBAL PROPERTY USE_FOLDERS ON) +define_property(TARGET PROPERTY FOLDER INHERITED BRIEF_DOCS "folder" FULL_DOCS "IDE folder name") + +if (COMPILER_IS_GCC_OR_CLANG) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-exceptions -fno-strict-aliasing") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -fno-strict-aliasing -fno-rtti") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y") +endif () + +if (COMPILER_IS_CLANG AND CMAKE_GENERATOR STREQUAL "Ninja") + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fcolor-diagnostics") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fcolor-diagnostics") +endif () + +if (WIN32 AND COMPILER_IS_GCC_OR_CLANG) + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mno-ms-bitfields -Wno-unknown-pragmas") + add_definitions(-D__USE_MINGW_ANSI_STDIO=1) +endif () + +# Ensure that the default include system directories are added to the list of CMake implicit includes. +# This workarounds an issue that happens when using GCC 6 and using system includes (-isystem). +# For more details check: https://bugs.webkit.org/show_bug.cgi?id=161697 +macro(DETERMINE_GCC_SYSTEM_INCLUDE_DIRS _lang _compiler _flags _result) + file(WRITE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy" "\n") + separate_arguments(_buildFlags UNIX_COMMAND "${_flags}") + execute_process(COMMAND ${_compiler} ${_buildFlags} -v -E -x ${_lang} -dD dummy + WORKING_DIRECTORY ${CMAKE_BINARY_DIR}/CMakeFiles OUTPUT_QUIET + ERROR_VARIABLE _gccOutput) + file(REMOVE "${CMAKE_BINARY_DIR}/CMakeFiles/dummy") + if ("${_gccOutput}" MATCHES "> search starts here[^\n]+\n *(.+) *\n *End of (search) list") + set(${_result} ${CMAKE_MATCH_1}) + string(REPLACE "\n" " " ${_result} "${${_result}}") + separate_arguments(${_result}) + endif () +endmacro() + +if (CMAKE_COMPILER_IS_GNUCC) + DETERMINE_GCC_SYSTEM_INCLUDE_DIRS("c" "${CMAKE_C_COMPILER}" "${CMAKE_C_FLAGS}" SYSTEM_INCLUDE_DIRS) + set(CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES ${CMAKE_C_IMPLICIT_INCLUDE_DIRECTORIES} ${SYSTEM_INCLUDE_DIRS}) +endif () + +if (CMAKE_COMPILER_IS_GNUCXX) + DETERMINE_GCC_SYSTEM_INCLUDE_DIRS("c++" "${CMAKE_CXX_COMPILER}" "${CMAKE_CXX_FLAGS}" SYSTEM_INCLUDE_DIRS) + set(CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES} ${SYSTEM_INCLUDE_DIRS}) +endif () + +# Detect Cortex-A53 core if CPU is ARM64 and OS is Linux. +# Query /proc/cpuinfo for each available core and check reported CPU part number: 0xd03 signals Cortex-A53. +# (see Main ID Register in ARM Cortex-A53 MPCore Processor Technical Reference Manual) +set(WTF_CPU_ARM64_CORTEXA53_INITIALVALUE OFF) +if (WTF_CPU_ARM64 AND (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")) + execute_process(COMMAND nproc OUTPUT_VARIABLE PROC_COUNT) + math(EXPR PROC_MAX ${PROC_COUNT}-1) + foreach (PROC_ID RANGE ${PROC_MAX}) + execute_process(COMMAND taskset -c ${PROC_ID} grep "^CPU part" /proc/cpuinfo OUTPUT_VARIABLE PROC_PART) + if (PROC_PART MATCHES "0xd03") + set(WTF_CPU_ARM64_CORTEXA53_INITIALVALUE ON) + break () + endif () + endforeach () +endif () +option(WTF_CPU_ARM64_CORTEXA53 "Enable Cortex-A53-specific code paths" ${WTF_CPU_ARM64_CORTEXA53_INITIALVALUE}) + +if (WTF_CPU_ARM64_CORTEXA53) + if (NOT WTF_CPU_ARM64) + message(FATAL_ERROR "WTF_CPU_ARM64_CORTEXA53 set without WTF_CPU_ARM64") + endif () + include(TestCXXAcceptsFlag) + CHECK_CXX_ACCEPTS_FLAG(-mfix-cortex-a53-835769 CXX_ACCEPTS_MFIX_CORTEX_A53_835769) + if (CXX_ACCEPTS_MFIX_CORTEX_A53_835769) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfix-cortex-a53-835769") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfix-cortex-a53-835769") + message(STATUS "Enabling Cortex-A53 workaround for compiler and disabling GNU gold linker, because it doesn't support this workaround.") + endif () +endif () + +EXPOSE_VARIABLE_TO_BUILD(WTF_CPU_ARM64_CORTEXA53) + +set(ARM_TRADITIONAL_DETECTED FALSE) +if (WTF_CPU_ARM) + set(ARM_THUMB2_TEST_SOURCE + " + #if !defined(thumb2) && !defined(__thumb2__) + #error \"Thumb2 instruction set isn't available\" + #endif + int main() {} + ") + + include(CheckCXXSourceCompiles) + CHECK_CXX_SOURCE_COMPILES("${ARM_THUMB2_TEST_SOURCE}" ARM_THUMB2_DETECTED) + if (NOT ARM_THUMB2_DETECTED) + set(ARM_TRADITIONAL_DETECTED TRUE) + # See https://bugs.webkit.org/show_bug.cgi?id=159880#c4 for details. + message(STATUS "Disabling GNU gold linker, because it doesn't support ARM instruction set properly.") + endif () +endif () + +# Use ld.gold if it is available and isn't disabled explicitly +include(CMakeDependentOption) +CMAKE_DEPENDENT_OPTION(USE_LD_GOLD "Use GNU gold linker" ON + "NOT CXX_ACCEPTS_MFIX_CORTEX_A53_835769;NOT ARM_TRADITIONAL_DETECTED;NOT WIN32;NOT APPLE" OFF) +if (USE_LD_GOLD) + execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version ERROR_QUIET OUTPUT_VARIABLE LD_VERSION) + if ("${LD_VERSION}" MATCHES "GNU gold") + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags") + set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags") + else () + message(WARNING "GNU gold linker isn't available, using the default system linker.") + set(USE_LD_GOLD OFF) + endif () +endif () + +set(ENABLE_DEBUG_FISSION_DEFAULT OFF) +if (USE_LD_GOLD AND CMAKE_BUILD_TYPE STREQUAL "Debug") + include(TestCXXAcceptsFlag) + CHECK_CXX_ACCEPTS_FLAG(-gsplit-dwarf CXX_ACCEPTS_GSPLIT_DWARF) + if (CXX_ACCEPTS_GSPLIT_DWARF) + set(ENABLE_DEBUG_FISSION_DEFAULT ON) + endif () +endif () + +option(DEBUG_FISSION "Use Debug Fission support" ${ENABLE_DEBUG_FISSION_DEFAULT}) + +if (DEBUG_FISSION) + if (NOT USE_LD_GOLD) + message(FATAL_ERROR "Need GNU gold linker for Debug Fission support") + endif () + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -gsplit-dwarf") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -gsplit-dwarf") + set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index") + set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gdb-index") +endif () + +if (COMPILER_IS_CLANG) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Qunused-arguments") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Qunused-arguments") +endif () + +string(TOLOWER ${CMAKE_HOST_SYSTEM_PROCESSOR} LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR) +if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND "${LOWERCASE_CMAKE_HOST_SYSTEM_PROCESSOR}" MATCHES "(i[3-6]86|x86|armhf)") + # To avoid out of memory when building with debug option in 32bit system. + # See https://bugs.webkit.org/show_bug.cgi?id=77327 + set(CMAKE_SHARED_LINKER_FLAGS_DEBUG "-Wl,--no-keep-memory ${CMAKE_SHARED_LINKER_FLAGS_DEBUG}") +endif () + +if (NOT MSVC) + string(REGEX MATCHALL "-fsanitize=[^ ]*" ENABLED_COMPILER_SANITIZERS ${CMAKE_CXX_FLAGS}) +endif () + +if (UNIX AND NOT APPLE AND NOT ENABLED_COMPILER_SANITIZERS) + set(CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined ${CMAKE_SHARED_LINKER_FLAGS}") +endif () + +if (USE_ARM_LLVM_DISASSEMBLER) + find_package(LLVM REQUIRED) + SET_AND_EXPOSE_TO_BUILD(HAVE_LLVM TRUE) +endif () + +# Enable the usage of OpenMP. +# - At this moment, OpenMP is only used as an alternative implementation +# to native threads for the parallelization of the SVG filters. +if (USE_OPENMP) + find_package(OpenMP REQUIRED) + set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}") + set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}") +endif () + +# GTK uses the GNU installation directories as defaults. +if (NOT PORT STREQUAL "GTK") + set(LIB_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Absolute path to library installation directory") + set(EXEC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Absolute path to executable installation directory") + set(LIBEXEC_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Absolute path to install executables executed by the library") +endif () + +# The Ninja generator does not yet know how to build archives in pieces, and so response +# files must be used to deal with very long linker command lines. +# See https://bugs.webkit.org/show_bug.cgi?id=129771 +# The Apple Toolchain doesn't support response files. +if (NOT APPLE) + # If using Ninja with cmake >= 3.6.0 and icecream, then the build is broken + # if enable the response files. See https://bugs.webkit.org/show_bug.cgi?id=168770 + if (NOT ((((${CMAKE_CXX_COMPILER} MATCHES ".*ccache.*") AND ($ENV{CCACHE_PREFIX} MATCHES ".*icecc.*")) + OR (${CMAKE_CXX_COMPILER} MATCHES ".*icecc.*") + OR (${AR_VERSION} MATCHES "^BSD ar [^ ]* - libarchive")) + AND (CMAKE_GENERATOR STREQUAL "Ninja") AND (${CMAKE_VERSION} VERSION_GREATER 3.5))) + set(CMAKE_NINJA_FORCE_RESPONSE_FILE 1) + endif () +endif () + +# Macros for determining HAVE values. +include(CheckIncludeFile) +include(CheckFunctionExists) +include(CheckSymbolExists) +include(CheckStructHasMember) + +macro(_HAVE_CHECK_INCLUDE _variable _header) + check_include_file(${_header} ${_variable}_value) + SET_AND_EXPOSE_TO_BUILD(${_variable} ${_variable}_value) +endmacro() + +macro(_HAVE_CHECK_FUNCTION _variable _function) + check_function_exists(${_function} ${_variable}_value) + SET_AND_EXPOSE_TO_BUILD(${_variable} ${_variable}_value) +endmacro() + +macro(_HAVE_CHECK_SYMBOL _variable _symbol _header) + check_symbol_exists(${_symbol} ${_header} ${_variable}_value) + SET_AND_EXPOSE_TO_BUILD(${_variable} ${_variable}_value) +endmacro() + +macro(_HAVE_CHECK_STRUCT _variable _struct _member _header) + check_struct_has_member(${_struct} ${_member} ${_header} ${_variable}_value) + SET_AND_EXPOSE_TO_BUILD(${_variable} ${_variable}_value) +endmacro() + +# Check whether features.h header exists. +# Including glibc's one defines __GLIBC__, that is used in Platform.h +_HAVE_CHECK_INCLUDE(HAVE_FEATURES_H features.h) + +# Check for headers +_HAVE_CHECK_INCLUDE(HAVE_ERRNO_H errno.h) +_HAVE_CHECK_INCLUDE(HAVE_LANGINFO_H langinfo.h) +_HAVE_CHECK_INCLUDE(HAVE_MMAP sys/mman.h) +_HAVE_CHECK_INCLUDE(HAVE_PTHREAD_NP_H pthread_np.h) +_HAVE_CHECK_INCLUDE(HAVE_STRINGS_H strings.h) +_HAVE_CHECK_INCLUDE(HAVE_SYS_PARAM_H sys/param.h) +_HAVE_CHECK_INCLUDE(HAVE_SYS_TIME_H sys/time.h) +_HAVE_CHECK_INCLUDE(HAVE_SYS_TIMEB_H sys/timeb.h) + +# Check for functions +_HAVE_CHECK_FUNCTION(HAVE_ALIGNED_MALLOC _aligned_malloc) +_HAVE_CHECK_FUNCTION(HAVE_ISDEBUGGERPRESENT IsDebuggerPresent) +_HAVE_CHECK_FUNCTION(HAVE_LOCALTIME_R localtime_r) +_HAVE_CHECK_FUNCTION(HAVE_STRNSTR strnstr) +_HAVE_CHECK_FUNCTION(HAVE_TIMEGM timegm) +_HAVE_CHECK_FUNCTION(HAVE_VASPRINTF vasprintf) + +# Check for symbols +# Windows has signal.h but is missing symbols that are used in calls to signal. +_HAVE_CHECK_SYMBOL(HAVE_SIGNAL_H SIGTRAP signal.h) + +# Check for struct members +_HAVE_CHECK_STRUCT(HAVE_STAT_BIRTHTIME "struct stat" st_birthtime sys/stat.h) +_HAVE_CHECK_STRUCT(HAVE_TM_GMTOFF "struct tm" tm_gmtoff time.h) +_HAVE_CHECK_STRUCT(HAVE_TM_ZONE "struct tm" tm_zone time.h) |