set(update_src_props ON)
endif()
- if(LLVM_REQUIRES_EH)
- set(LLVM_REQUIRES_RTTI ON)
+ # LLVM_REQUIRES_EH is an internal flag that individual
+ # targets can use to force EH
+ if(LLVM_REQUIRES_EH OR LLVM_ENABLE_EH)
+ if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
+ message(AUTHOR_WARNING "Exception handling requires RTTI. Enabling RTTI for ${name}")
+ set(LLVM_REQUIRES_RTTI ON)
+ endif()
else()
if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions")
endif()
endif()
- if(NOT LLVM_REQUIRES_RTTI)
+ # LLVM_REQUIRES_RTTI is an internal flag that individual
+ # targets can use to force RTTI
+ if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
else()
set(native_export_file "${target_name}.def")
- set(CAT "type")
- if(CYGWIN)
- set(CAT "cat")
+ set(CAT "cat")
+ set(export_file_nativeslashes ${export_file})
+ if(WIN32 AND NOT CYGWIN)
+ set(CAT "type")
+ # Convert ${export_file} to native format (backslashes) for "type"
+ # Does not use file(TO_NATIVE_PATH) as it doesn't create a native
+ # path but a build-system specific format (see CMake bug
+ # http://public.kitware.com/Bug/print_bug_page.php?bug_id=5939 )
+ string(REPLACE / \\ export_file_nativeslashes ${export_file})
endif()
- # Using ${export_file} in add_custom_command directly confuses cmd.exe.
- file(TO_NATIVE_PATH ${export_file} export_file_backslashes)
-
add_custom_command(OUTPUT ${native_export_file}
COMMAND ${CMAKE_COMMAND} -E echo "EXPORTS" > ${native_export_file}
- COMMAND ${CAT} ${export_file_backslashes} >> ${native_export_file}
+ COMMAND ${CAT} ${export_file_nativeslashes} >> ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
- if(CYGWIN OR MINGW)
- set_property(TARGET ${target_name} APPEND_STRING PROPERTY
- LINK_FLAGS " ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
- else()
- set_property(TARGET ${target_name} APPEND_STRING PROPERTY
- LINK_FLAGS " /DEF:${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
+ set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
+ if(MSVC)
+ set(export_file_linker_flag "/DEF:${export_file_linker_flag}")
endif()
+ set_property(TARGET ${target_name} APPEND_STRING PROPERTY
+ LINK_FLAGS " ${export_file_linker_flag}")
endif()
add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
endfunction(add_llvm_symbol_exports)
-function(add_dead_strip target_name)
+if(NOT WIN32 AND NOT APPLE)
+ execute_process(
+ COMMAND ${CMAKE_C_COMPILER} -Wl,--version
+ OUTPUT_VARIABLE stdout
+ ERROR_QUIET
+ )
+ if("${stdout}" MATCHES "GNU gold")
+ set(LLVM_LINKER_IS_GOLD ON)
+ endif()
+endif()
+
+function(add_link_opts target_name)
+ # Pass -O3 to the linker. This enabled different optimizations on different
+ # linkers.
+ if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin" OR WIN32))
+ set_property(TARGET ${target_name} APPEND_STRING PROPERTY
+ LINK_FLAGS " -Wl,-O3")
+ endif()
+
+ if(LLVM_LINKER_IS_GOLD)
+ # With gold gc-sections is always safe.
+ set_property(TARGET ${target_name} APPEND_STRING PROPERTY
+ LINK_FLAGS " -Wl,--gc-sections")
+ # Note that there is a bug with -Wl,--icf=safe so it is not safe
+ # to enable. See https://sourceware.org/bugzilla/show_bug.cgi?id=17704.
+ endif()
+
if(NOT LLVM_NO_DEAD_STRIP)
if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
+ # ld64's implementation of -dead_strip breaks tools that use plugins.
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,-dead_strip")
- elseif(NOT WIN32)
+ elseif(NOT WIN32 AND NOT LLVM_LINKER_IS_GOLD)
# Object files are compiled with -ffunction-data-sections.
+ # Versions of bfd ld < 2.23.1 have a bug in --gc-sections that breaks
+ # tools that use plugins. Always pass --gc-sections once we require
+ # a newer linker.
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " -Wl,--gc-sections")
endif()
endif()
-endfunction(add_dead_strip)
+endfunction(add_link_opts)
# Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
# Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
# or a certain builder, for eaxample, msbuild.exe, would be confused.
function(set_output_directory target bindir libdir)
+ # Do nothing if *_OUTPUT_INTDIR is empty.
+ if("${bindir}" STREQUAL "")
+ return()
+ endif()
+
+ # moddir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
+ # It affects output of add_library(MODULE).
+ if(WIN32 OR CYGWIN)
+ # DLL platform
+ set(moddir ${bindir})
+ else()
+ set(moddir ${libdir})
+ endif()
if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${bindir})
string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${libdir})
+ string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${moddir})
set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
- set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
+ set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
endforeach()
else()
set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${bindir})
set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libdir})
- set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${libdir})
+ set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${moddir})
endif()
endfunction()
if(ARG_SHARED OR ARG_STATIC)
message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
endif()
- if(NOT LLVM_ON_UNIX OR CYGWIN)
+ if(NOT LLVM_ENABLE_PLUGINS)
message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
return()
endif()
endif()
set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
llvm_update_compile_flags(${name})
- add_dead_strip( ${name} )
+ add_link_opts( ${name} )
if(ARG_OUTPUT_NAME)
set_target_properties(${name}
PROPERTIES
endif()
if(ARG_SHARED)
- if (MSVC)
- set_target_properties(${name}
- PROPERTIES
- IMPORT_SUFFIX ".imp")
- endif ()
+ if(WIN32)
+ set_target_properties(${name} PROPERTIES
+ PREFIX ""
+ )
+ endif()
endif()
if(ARG_MODULE OR ARG_SHARED)
+ # Do not add -Dname_EXPORTS to the command-line when building files in this
+ # target. Doing so is actively harmful for the modules build because it
+ # creates extra module variants, and not useful because we don't use these
+ # macros.
+ set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
+
if (LLVM_EXPORTED_SYMBOL_FILE)
add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
endif()
${lib_deps}
${llvm_libs}
)
- elseif(ARG_SHARED AND BUILD_SHARED_LIBS)
- # FIXME: It may be PRIVATE since SO knows its dependent libs.
- target_link_libraries(${name} PUBLIC
- ${ARG_LINK_LIBS}
- ${lib_deps}
- ${llvm_libs}
- )
else()
- # MODULE|SHARED
+ # We can use PRIVATE since SO knows its dependent libs.
target_link_libraries(${name} PRIVATE
${ARG_LINK_LIBS}
${lib_deps}
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LTO")
install(TARGETS ${name}
EXPORT LLVMExports
+ RUNTIME DESTINATION bin
LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
endif()
set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
else()
if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
+ if(WIN32 OR CYGWIN)
+ # DLL platform
+ set(dlldir "bin")
+ else()
+ set(dlldir "lib${LLVM_LIBDIR_SUFFIX}")
+ endif()
install(TARGETS ${name}
EXPORT LLVMExports
- LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
+ LIBRARY DESTINATION ${dlldir}
ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
endif()
set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
add_executable(${name} ${ALL_FILES})
endif()
llvm_update_compile_flags(${name})
- add_dead_strip( ${name} )
+ add_link_opts( ${name} )
+
+ # Do not add -Dname_EXPORTS to the command-line when building files in this
+ # target. Doing so is actively harmful for the modules build because it
+ # creates extra module variants, and not useful because we don't use these
+ # macros.
+ set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
if (LLVM_EXPORTED_SYMBOL_FILE)
add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
set(EXCLUDE_FROM_ALL ON)
endif()
- # Visual Studio 2012 only supports up to 8 template parameters in
- # std::tr1::tuple by default, but gtest requires 10
- if (MSVC AND MSVC_VERSION EQUAL 1700)
- list(APPEND LLVM_COMPILE_DEFINITIONS _VARIADIC_MAX=10)
- endif ()
-
include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include)
if (NOT LLVM_ENABLE_THREADS)
list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_PTHREAD=0)
endif ()
endfunction()
+function(llvm_add_go_executable binary pkgpath)
+ cmake_parse_arguments(ARG "ALL" "" "DEPENDS;GOFLAGS" ${ARGN})
+
+ if(LLVM_BINDINGS MATCHES "go")
+ # FIXME: This should depend only on the libraries Go needs.
+ get_property(llvmlibs GLOBAL PROPERTY LLVM_LIBS)
+ set(binpath ${CMAKE_BINARY_DIR}/bin/${binary}${CMAKE_EXECUTABLE_SUFFIX})
+ set(cc "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
+ set(cxx "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
+ set(cppflags "")
+ get_property(include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
+ foreach(d ${include_dirs})
+ set(cppflags "${cppflags} -I${d}")
+ endforeach(d)
+ set(ldflags "${CMAKE_EXE_LINKER_FLAGS}")
+ add_custom_command(OUTPUT ${binpath}
+ COMMAND ${CMAKE_BINARY_DIR}/bin/llvm-go "cc=${cc}" "cxx=${cxx}" "cppflags=${cppflags}" "ldflags=${ldflags}"
+ ${ARG_GOFLAGS} build -o ${binpath} ${pkgpath}
+ DEPENDS llvm-config ${CMAKE_BINARY_DIR}/bin/llvm-go${CMAKE_EXECUTABLE_SUFFIX}
+ ${llvmlibs} ${ARG_DEPENDS}
+ COMMENT "Building Go executable ${binary}"
+ VERBATIM)
+ if (ARG_ALL)
+ add_custom_target(${binary} ALL DEPENDS ${binpath})
+ else()
+ add_custom_target(${binary} DEPENDS ${binpath})
+ endif()
+ endif()
+endfunction()
+
# This function provides an automatic way to 'configure'-like generate a file
# based on a set of common and custom variables, specifically targeting the
# variables needed for the 'lit.site.cfg' files. This function bundles the
set(SHLIBEXT "${LTDL_SHLIB_EXT}")
- if(BUILD_SHARED_LIBS)
- set(LLVM_SHARED_LIBS_ENABLED "1")
- else()
- set(LLVM_SHARED_LIBS_ENABLED "0")
- endif(BUILD_SHARED_LIBS)
-
# Configuration-time: See Unit/lit.site.cfg.in
if (CMAKE_CFG_INTDIR STREQUAL ".")
set(LLVM_BUILD_MODE ".")
string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} LLVM_LIBS_DIR ${LLVM_LIBRARY_DIR})
# SHLIBDIR points the build tree.
- string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} SHLIBDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
+ string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} SHLIBDIR "${LLVM_SHLIB_OUTPUT_INTDIR}")
set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
- set(ENABLE_SHARED ${LLVM_SHARED_LIBS_ENABLED})
+ # FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for
+ # plugins. We may rename it.
+ if(LLVM_ENABLE_PLUGINS)
+ set(ENABLE_SHARED "1")
+ else()
+ set(ENABLE_SHARED "0")
+ endif()
if(LLVM_ENABLE_ASSERTIONS AND NOT MSVC_IDE)
set(ENABLE_ASSERTIONS "1")
set(HOST_OS ${CMAKE_SYSTEM_NAME})
set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
- if (CLANG_ENABLE_ARCMT)
- set(ENABLE_CLANG_ARCMT "1")
- else()
- set(ENABLE_CLANG_ARCMT "0")
- endif()
- if (CLANG_ENABLE_REWRITER)
- set(ENABLE_CLANG_REWRITER "1")
- else()
- set(ENABLE_CLANG_REWRITER "0")
- endif()
- if (CLANG_ENABLE_STATIC_ANALYZER)
- set(ENABLE_CLANG_STATIC_ANALYZER "1")
- else()
- set(ENABLE_CLANG_STATIC_ANALYZER "0")
- endif()
+ set(HOST_CC "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
+ set(HOST_CXX "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
+ set(HOST_LDFLAGS "${CMAKE_EXE_LINKER_FLAGS}")
configure_file(${input} ${output} @ONLY)
endfunction()
if (NOT CMAKE_CFG_INTDIR STREQUAL ".")
list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR})
endif ()
- set(LIT_COMMAND
- ${PYTHON_EXECUTABLE}
- ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py
- ${LIT_ARGS}
- )
+ if (LLVM_MAIN_SRC_DIR)
+ set (LIT_COMMAND ${PYTHON_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py)
+ else()
+ find_program(LIT_COMMAND llvm-lit)
+ endif ()
+ list(APPEND LIT_COMMAND ${LIT_ARGS})
foreach(param ${ARG_PARAMS})
list(APPEND LIT_COMMAND --param ${param})
endforeach()
add_custom_target(${target}
COMMAND ${LIT_COMMAND} ${ARG_DEFAULT_ARGS}
COMMENT "${comment}"
+ ${cmake_3_2_USES_TERMINAL}
)
add_dependencies(${target} ${ARG_DEPENDS})
else()