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