| include(CMakePushCheckState) |
| include(CheckSymbolExists) |
| |
| # Because compiler-rt spends a lot of time setting up custom compile flags, |
| # define a handy helper function for it. The compile flags setting in CMake |
| # has serious issues that make its syntax challenging at best. |
| function(set_target_compile_flags target) |
| set(argstring "") |
| foreach(arg ${ARGN}) |
| set(argstring "${argstring} ${arg}") |
| endforeach() |
| set_property(TARGET ${target} PROPERTY COMPILE_FLAGS "${argstring}") |
| endfunction() |
| |
| function(set_target_link_flags target) |
| set(argstring "") |
| foreach(arg ${ARGN}) |
| set(argstring "${argstring} ${arg}") |
| endforeach() |
| set_property(TARGET ${target} PROPERTY LINK_FLAGS "${argstring}") |
| endfunction() |
| |
| # Set the variable var_PYBOOL to True if var holds a true-ish string, |
| # otherwise set it to False. |
| macro(pythonize_bool var) |
| if (${var}) |
| set(${var}_PYBOOL True) |
| else() |
| set(${var}_PYBOOL False) |
| endif() |
| endmacro() |
| |
| # Appends value to all lists in ARGN, if the condition is true. |
| macro(append_list_if condition value) |
| if(${condition}) |
| foreach(list ${ARGN}) |
| list(APPEND ${list} ${value}) |
| endforeach() |
| endif() |
| endmacro() |
| |
| # Appends value to all strings in ARGN, if the condition is true. |
| macro(append_string_if condition value) |
| if(${condition}) |
| foreach(str ${ARGN}) |
| set(${str} "${${str}} ${value}") |
| endforeach() |
| endif() |
| endmacro() |
| |
| macro(append_rtti_flag polarity list) |
| if(${polarity}) |
| append_list_if(COMPILER_RT_HAS_FRTTI_FLAG -frtti ${list}) |
| append_list_if(COMPILER_RT_HAS_GR_FLAG /GR ${list}) |
| else() |
| append_list_if(COMPILER_RT_HAS_FNO_RTTI_FLAG -fno-rtti ${list}) |
| append_list_if(COMPILER_RT_HAS_GR_FLAG /GR- ${list}) |
| endif() |
| endmacro() |
| |
| macro(append_have_file_definition filename varname list) |
| check_include_file("${filename}" "${varname}") |
| if (NOT ${varname}) |
| set("${varname}" 0) |
| endif() |
| list(APPEND ${list} "${varname}=${${varname}}") |
| endmacro() |
| |
| macro(list_intersect output input1 input2) |
| set(${output}) |
| foreach(it ${${input1}}) |
| list(FIND ${input2} ${it} index) |
| if( NOT (index EQUAL -1)) |
| list(APPEND ${output} ${it}) |
| endif() |
| endforeach() |
| endmacro() |
| |
| function(list_replace input_list old new) |
| set(replaced_list) |
| foreach(item ${${input_list}}) |
| if(${item} STREQUAL ${old}) |
| list(APPEND replaced_list ${new}) |
| else() |
| list(APPEND replaced_list ${item}) |
| endif() |
| endforeach() |
| set(${input_list} "${replaced_list}" PARENT_SCOPE) |
| endfunction() |
| |
| # Takes ${ARGN} and puts only supported architectures in @out_var list. |
| function(filter_available_targets out_var) |
| set(archs ${${out_var}}) |
| foreach(arch ${ARGN}) |
| list(FIND COMPILER_RT_SUPPORTED_ARCH ${arch} ARCH_INDEX) |
| if(NOT (ARCH_INDEX EQUAL -1) AND CAN_TARGET_${arch}) |
| list(APPEND archs ${arch}) |
| endif() |
| endforeach() |
| set(${out_var} ${archs} PARENT_SCOPE) |
| endfunction() |
| |
| # Add $arch as supported with no additional flags. |
| macro(add_default_target_arch arch) |
| set(TARGET_${arch}_CFLAGS "") |
| set(CAN_TARGET_${arch} 1) |
| list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch}) |
| endmacro() |
| |
| function(check_compile_definition def argstring out_var) |
| if("${def}" STREQUAL "") |
| set(${out_var} TRUE PARENT_SCOPE) |
| return() |
| endif() |
| cmake_push_check_state() |
| set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} ${argstring}") |
| check_symbol_exists(${def} "" ${out_var}) |
| cmake_pop_check_state() |
| endfunction() |
| |
| # test_target_arch(<arch> <def> <target flags...>) |
| # Checks if architecture is supported: runs host compiler with provided |
| # flags to verify that: |
| # 1) <def> is defined (if non-empty) |
| # 2) simple file can be successfully built. |
| # If successful, saves target flags for this architecture. |
| macro(test_target_arch arch def) |
| set(TARGET_${arch}_CFLAGS ${ARGN}) |
| set(TARGET_${arch}_LINK_FLAGS ${ARGN}) |
| set(argstring "") |
| foreach(arg ${ARGN}) |
| set(argstring "${argstring} ${arg}") |
| endforeach() |
| check_compile_definition("${def}" "${argstring}" HAS_${arch}_DEF) |
| if(NOT DEFINED CAN_TARGET_${arch}) |
| if(NOT HAS_${arch}_DEF) |
| set(CAN_TARGET_${arch} FALSE) |
| elseif(TEST_COMPILE_ONLY) |
| try_compile_only(CAN_TARGET_${arch} ${TARGET_${arch}_CFLAGS}) |
| else() |
| set(FLAG_NO_EXCEPTIONS "") |
| if(COMPILER_RT_HAS_FNO_EXCEPTIONS_FLAG) |
| set(FLAG_NO_EXCEPTIONS " -fno-exceptions ") |
| endif() |
| set(SAVED_CMAKE_EXE_LINKER_FLAGS ${CMAKE_EXE_LINKER_FLAGS}) |
| set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${argstring}") |
| try_compile(CAN_TARGET_${arch} ${CMAKE_BINARY_DIR} ${SIMPLE_SOURCE} |
| COMPILE_DEFINITIONS "${TARGET_${arch}_CFLAGS} ${FLAG_NO_EXCEPTIONS}" |
| OUTPUT_VARIABLE TARGET_${arch}_OUTPUT) |
| set(CMAKE_EXE_LINKER_FLAGS ${SAVED_CMAKE_EXE_LINKER_FLAGS}) |
| endif() |
| endif() |
| if(${CAN_TARGET_${arch}}) |
| list(APPEND COMPILER_RT_SUPPORTED_ARCH ${arch}) |
| elseif("${COMPILER_RT_DEFAULT_TARGET_ARCH}" STREQUAL "${arch}" AND |
| COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE) |
| # Bail out if we cannot target the architecture we plan to test. |
| message(FATAL_ERROR "Cannot compile for ${arch}:\n${TARGET_${arch}_OUTPUT}") |
| endif() |
| endmacro() |
| |
| macro(detect_target_arch) |
| check_symbol_exists(__arm__ "" __ARM) |
| check_symbol_exists(__aarch64__ "" __AARCH64) |
| check_symbol_exists(__x86_64__ "" __X86_64) |
| check_symbol_exists(__i386__ "" __I386) |
| check_symbol_exists(__mips__ "" __MIPS) |
| check_symbol_exists(__mips64__ "" __MIPS64) |
| check_symbol_exists(__powerpc64__ "" __PPC64) |
| check_symbol_exists(__powerpc64le__ "" __PPC64LE) |
| check_symbol_exists(__riscv "" __RISCV) |
| check_symbol_exists(__s390x__ "" __S390X) |
| check_symbol_exists(__wasm32__ "" __WEBASSEMBLY32) |
| check_symbol_exists(__wasm64__ "" __WEBASSEMBLY64) |
| if(__ARM) |
| add_default_target_arch(arm) |
| elseif(__AARCH64) |
| add_default_target_arch(aarch64) |
| elseif(__X86_64) |
| add_default_target_arch(x86_64) |
| elseif(__I386) |
| add_default_target_arch(i386) |
| elseif(__MIPS64) # must be checked before __MIPS |
| add_default_target_arch(mips64) |
| elseif(__MIPS) |
| add_default_target_arch(mips) |
| elseif(__PPC64) |
| add_default_target_arch(powerpc64) |
| elseif(__PPC64LE) |
| add_default_target_arch(powerpc64le) |
| elseif(__RISCV) |
| if(CMAKE_SIZEOF_VOID_P EQUAL "4") |
| add_default_target_arch(riscv32) |
| elseif(CMAKE_SIZEOF_VOID_P EQUAL "8") |
| add_default_target_arch(riscv64) |
| else() |
| message(FATAL_ERROR "Unsupport XLEN for RISC-V") |
| endif() |
| elseif(__S390X) |
| add_default_target_arch(s390x) |
| elseif(__WEBASSEMBLY32) |
| add_default_target_arch(wasm32) |
| elseif(__WEBASSEMBLY64) |
| add_default_target_arch(wasm64) |
| endif() |
| endmacro() |
| |
| macro(load_llvm_config) |
| if (NOT LLVM_CONFIG_PATH) |
| find_program(LLVM_CONFIG_PATH "llvm-config" |
| DOC "Path to llvm-config binary") |
| if (NOT LLVM_CONFIG_PATH) |
| message(FATAL_ERROR "llvm-config not found: specify LLVM_CONFIG_PATH") |
| endif() |
| endif() |
| execute_process( |
| COMMAND ${LLVM_CONFIG_PATH} "--obj-root" "--bindir" "--libdir" "--src-root" |
| RESULT_VARIABLE HAD_ERROR |
| OUTPUT_VARIABLE CONFIG_OUTPUT) |
| if (HAD_ERROR) |
| message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}") |
| endif() |
| string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT}) |
| list(GET CONFIG_OUTPUT 0 BINARY_DIR) |
| list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR) |
| list(GET CONFIG_OUTPUT 2 LIBRARY_DIR) |
| list(GET CONFIG_OUTPUT 3 MAIN_SRC_DIR) |
| |
| set(LLVM_BINARY_DIR ${BINARY_DIR} CACHE PATH "Path to LLVM build tree") |
| set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin") |
| set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib") |
| set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree") |
| |
| # Make use of LLVM CMake modules. |
| # --cmakedir is supported since llvm r291218 (4.0 release) |
| execute_process( |
| COMMAND ${LLVM_CONFIG_PATH} --cmakedir |
| RESULT_VARIABLE HAD_ERROR |
| OUTPUT_VARIABLE CONFIG_OUTPUT) |
| if(NOT HAD_ERROR) |
| string(STRIP "${CONFIG_OUTPUT}" LLVM_CMAKE_PATH_FROM_LLVM_CONFIG) |
| file(TO_CMAKE_PATH ${LLVM_CMAKE_PATH_FROM_LLVM_CONFIG} LLVM_CMAKE_PATH) |
| else() |
| file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE) |
| set(LLVM_CMAKE_PATH "${LLVM_BINARY_DIR_CMAKE_STYLE}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm") |
| endif() |
| |
| list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}") |
| # Get some LLVM variables from LLVMConfig. |
| include("${LLVM_CMAKE_PATH}/LLVMConfig.cmake") |
| |
| set(LLVM_LIBRARY_OUTPUT_INTDIR |
| ${LLVM_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX}) |
| endmacro() |
| |
| macro(construct_compiler_rt_default_triple) |
| if(COMPILER_RT_DEFAULT_TARGET_ONLY) |
| if(DEFINED COMPILER_RT_DEFAULT_TARGET_TRIPLE) |
| message(FATAL_ERROR "COMPILER_RT_DEFAULT_TARGET_TRIPLE isn't supported when building for default target only") |
| endif() |
| set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${CMAKE_C_COMPILER_TARGET}) |
| else() |
| set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${TARGET_TRIPLE} CACHE STRING |
| "Default triple for which compiler-rt runtimes will be built.") |
| endif() |
| |
| if(DEFINED COMPILER_RT_TEST_TARGET_TRIPLE) |
| # Backwards compatibility: this variable used to be called |
| # COMPILER_RT_TEST_TARGET_TRIPLE. |
| set(COMPILER_RT_DEFAULT_TARGET_TRIPLE ${COMPILER_RT_TEST_TARGET_TRIPLE}) |
| endif() |
| |
| string(REPLACE "-" ";" TARGET_TRIPLE_LIST ${COMPILER_RT_DEFAULT_TARGET_TRIPLE}) |
| list(GET TARGET_TRIPLE_LIST 0 COMPILER_RT_DEFAULT_TARGET_ARCH) |
| list(GET TARGET_TRIPLE_LIST 1 COMPILER_RT_DEFAULT_TARGET_OS) |
| list(LENGTH TARGET_TRIPLE_LIST TARGET_TRIPLE_LIST_LENGTH) |
| if(TARGET_TRIPLE_LIST_LENGTH GREATER 2) |
| list(GET TARGET_TRIPLE_LIST 2 COMPILER_RT_DEFAULT_TARGET_ABI) |
| endif() |
| # Determine if test target triple is specified explicitly, and doesn't match the |
| # default. |
| if(NOT COMPILER_RT_DEFAULT_TARGET_TRIPLE STREQUAL TARGET_TRIPLE) |
| set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE TRUE) |
| else() |
| set(COMPILER_RT_HAS_EXPLICIT_DEFAULT_TARGET_TRIPLE FALSE) |
| endif() |
| endmacro() |
| |
| # Filter out generic versions of routines that are re-implemented in |
| # architecture specific manner. This prevents multiple definitions of the |
| # same symbols, making the symbol selection non-deterministic. |
| function(filter_builtin_sources output_var exclude_or_include excluded_list) |
| if(exclude_or_include STREQUAL "EXCLUDE") |
| set(filter_action GREATER) |
| set(filter_value -1) |
| elseif(exclude_or_include STREQUAL "INCLUDE") |
| set(filter_action LESS) |
| set(filter_value 0) |
| else() |
| message(FATAL_ERROR "filter_builtin_sources called without EXCLUDE|INCLUDE") |
| endif() |
| |
| set(intermediate ${ARGN}) |
| foreach (_file ${intermediate}) |
| get_filename_component(_name_we ${_file} NAME_WE) |
| list(FIND ${excluded_list} ${_name_we} _found) |
| if(_found ${filter_action} ${filter_value}) |
| list(REMOVE_ITEM intermediate ${_file}) |
| elseif(${_file} MATCHES ".*/.*\\.S" OR ${_file} MATCHES ".*/.*\\.c") |
| get_filename_component(_name ${_file} NAME) |
| string(REPLACE ".S" ".c" _cname "${_name}") |
| list(REMOVE_ITEM intermediate ${_cname}) |
| endif () |
| endforeach () |
| set(${output_var} ${intermediate} PARENT_SCOPE) |
| endfunction() |
| |
| function(get_compiler_rt_target arch variable) |
| if(ANDROID AND ${arch} STREQUAL "i386") |
| set(target "i686${COMPILER_RT_OS_SUFFIX}-${COMPILER_RT_DEFAULT_TARGET_OS}") |
| else() |
| set(target "${arch}-${COMPILER_RT_DEFAULT_TARGET_OS}") |
| endif() |
| if(COMPILER_RT_DEFAULT_TARGET_ABI) |
| set(target "${target}-${COMPILER_RT_DEFAULT_TARGET_ABI}") |
| endif() |
| set(${variable} ${target} PARENT_SCOPE) |
| endfunction() |
| |
| function(get_compiler_rt_install_dir arch install_dir) |
| if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE) |
| get_compiler_rt_target(${arch} target) |
| set(${install_dir} ${COMPILER_RT_INSTALL_PATH}/${target}/lib PARENT_SCOPE) |
| else() |
| set(${install_dir} ${COMPILER_RT_LIBRARY_INSTALL_DIR} PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| function(get_compiler_rt_output_dir arch output_dir) |
| if(LLVM_ENABLE_PER_TARGET_RUNTIME_DIR AND NOT APPLE) |
| get_compiler_rt_target(${arch} target) |
| set(${output_dir} ${COMPILER_RT_OUTPUT_DIR}/${target}/lib PARENT_SCOPE) |
| else() |
| set(${output_dir} ${COMPILER_RT_LIBRARY_OUTPUT_DIR} PARENT_SCOPE) |
| endif() |
| endfunction() |
| |
| # compiler_rt_process_sources( |
| # <OUTPUT_VAR> |
| # <SOURCE_FILE> ... |
| # [ADDITIONAL_HEADERS <header> ...] |
| # ) |
| # |
| # Process the provided sources and write the list of new sources |
| # into `<OUTPUT_VAR>`. |
| # |
| # ADDITIONAL_HEADERS - Adds the supplied header to list of sources for IDEs. |
| # |
| # This function is very similar to `llvm_process_sources()` but exists here |
| # because we need to support standalone builds of compiler-rt. |
| function(compiler_rt_process_sources OUTPUT_VAR) |
| cmake_parse_arguments( |
| ARG |
| "" |
| "" |
| "ADDITIONAL_HEADERS" |
| ${ARGN} |
| ) |
| set(sources ${ARG_UNPARSED_ARGUMENTS}) |
| set(headers "") |
| if (XCODE OR MSVC_IDE OR CMAKE_EXTRA_GENERATOR) |
| # For IDEs we need to tell CMake about header files. |
| # Otherwise they won't show up in UI. |
| set(headers ${ARG_ADDITIONAL_HEADERS}) |
| list(LENGTH headers headers_length) |
| if (${headers_length} GREATER 0) |
| set_source_files_properties(${headers} |
| PROPERTIES HEADER_FILE_ONLY ON) |
| endif() |
| endif() |
| set("${OUTPUT_VAR}" ${sources} ${headers} PARENT_SCOPE) |
| endfunction() |