find_package(Wasm) if(WASM_FOUND) message(STATUS "Using WASM clang => " ${WASM_CLANG}) message(STATUS "Using WASM llc => " ${WASM_LLC}) message(STATUS "Using WASM llvm-link => " ${WASM_LLVM_LINK}) else() message( FATAL_ERROR "No WASM compiler cound be found (make sure WASM_ROOT is set)" ) return() endif() macro(compile_wast) #read arguments include ones that we don't since arguments get forwared "as is" and we don't want to threat unknown argument names as values cmake_parse_arguments(ARG "NOWARNINGS" "TARGET;DESTINATION_FOLDER" "SOURCE_FILES;INCLUDE_FOLDERS;SYSTEM_INCLUDE_FOLDERS;LIBRARIES" ${ARGN}) set(target ${ARG_TARGET}) # NOTE: Setting SOURCE_FILE and looping over it to avoid cmake issue with compilation ${target}.bc's rule colliding with # linking ${target}.bc's rule if ("${ARG_SOURCE_FILES}" STREQUAL "") set(SOURCE_FILES ${target}.cpp) else() set(SOURCE_FILES ${ARG_SOURCE_FILES}) endif() set(outfiles "") foreach(srcfile ${SOURCE_FILES}) get_filename_component(outfile ${srcfile} NAME) get_filename_component(extension ${srcfile} EXT) get_filename_component(infile ${srcfile} ABSOLUTE) # -ffreestanding # Assert that compilation targets a freestanding environment. # This implies -fno-builtin. A freestanding environment is one in which the standard library may not exist, and program startup may not necessarily be at main. # The most obvious example is an OS kernel. # -nostdlib # Do not use the standard system startup files or libraries when linking. # No startup files and only the libraries you specify are passed to the linker, and options specifying linkage of the system libraries, such as -static-libgcc or -shared-libgcc, are ignored. # The compiler may generate calls to memcmp, memset, memcpy and memmove. # These entries are usually resolved by entries in libc. These entry points should be supplied through some other mechanism when this option is specified. # -fno-threadsafe-statics # Do not emit the extra code to use the routines specified in the C++ ABI for thread-safe initialization of local statics. # You can use this option to reduce code size slightly in code that doesn’t need to be thread-safe. # -fno-rtti # Disable generation of information about every class with virtual functions for use by the C++ run-time type identification features (dynamic_cast and typeid). # -fno-exceptions # Disable the generation of extra code needed to propagate exceptions if ("${extension}" STREQUAL ".c") set(STDFLAG -D_XOPEN_SOURCE=700) else() set(STDFLAG "--std=c++14") endif() set(WASM_COMMAND ${WASM_CLANG} -emit-llvm -O3 ${STDFLAG} --target=wasm32 -ffreestanding -nostdlib -nostdlibinc -DBOOST_DISABLE_ASSERTS -DBOOST_EXCEPTION_DISABLE -DWASM_COMPILE -fno-threadsafe-statics -fno-rtti -fno-exceptions -w -c ${infile} -o ${outfile}.bc ) # rapidjson使用64位结构,解决double精度丢失问题 list(APPEND WASM_COMMAND -DRAPIDJSON_64BIT=1) if (${ARG_NOWARNINGS}) list(APPEND WASM_COMMAND -Wno-everything) else() list(APPEND WASM_COMMAND -Weverything -Wno-c++98-compat -Wno-old-style-cast -Wno-vla -Wno-vla-extension -Wno-c++98-compat-pedantic -Wno-missing-prototypes -Wno-missing-variable-declarations -Wno-packed -Wno-padded -Wno-c99-extensions -Wno-documentation-unknown-command) endif() foreach(folder ${ARG_INCLUDE_FOLDERS}) list(APPEND WASM_COMMAND -I ${folder}) endforeach() if ("${ARG_SYSTEM_INCLUDE_FOLDERS}" STREQUAL "") set (ARG_SYSTEM_INCLUDE_FOLDERS ${DEFAULT_SYSTEM_INCLUDE_FOLDERS}) endif() foreach(folder ${ARG_SYSTEM_INCLUDE_FOLDERS}) list(APPEND WASM_COMMAND -isystem ${folder}) endforeach() add_custom_command(OUTPUT ${outfile}.bc DEPENDS ${infile} COMMAND ${WASM_COMMAND} IMPLICIT_DEPENDS CXX ${infile} COMMENT "Building LLVM bitcode ${outfile}.bc" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${outfile}.bc) list(APPEND outfiles ${outfile}.bc) endforeach(srcfile) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${target}.bc) endmacro(compile_wast) macro(add_wast_library) cmake_parse_arguments(ARG "NOWARNINGS" "TARGET;DESTINATION_FOLDER" "SOURCE_FILES;INCLUDE_FOLDERS;SYSTEM_INCLUDE_FOLDERS" ${ARGN}) set(target ${ARG_TARGET}) compile_wast(${ARGV}) get_filename_component("${ARG_TARGET}_BC_FILENAME" "${ARG_DESTINATION_FOLDER}/${ARG_TARGET}.bc" ABSOLUTE CACHE) add_custom_target(${target} ALL DEPENDS ${${ARG_TARGET}_BC_FILENAME}) add_custom_command(OUTPUT ${${ARG_TARGET}_BC_FILENAME} DEPENDS ${outfiles} COMMAND ${WASM_LLVM_LINK} -o ${${ARG_TARGET}_BC_FILENAME} ${outfiles} COMMENT "Linking LLVM bitcode library ${target}.bc" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) endmacro(add_wast_library) macro(compile_executable) cmake_parse_arguments(ARG "NOWARNINGS" "TARGET;DESTINATION_FOLDER;MAX_MEMORY;ABI" "SOURCE_FILES;INCLUDE_FOLDERS;SYSTEM_INCLUDE_FOLDERS;LIBRARIES" ${ARGN}) set(target ${ARG_TARGET}) set(DESTINATION_FOLDER ${ARG_DESTINATION_FOLDER}) #message("compile_wast") if ("${ARG_SYSTEM_INCLUDE_FOLDERS}" STREQUAL "") set (ARG_SYSTEM_INCLUDE_FOLDERS ${DEFAULT_SYSTEM_INCLUDE_FOLDERS}) endif() set(ABI_INCLUDE "") #message("INCLUDE_FOLDERS:${ARG_INCLUDE_FOLDERS}") foreach(folder ${ARG_INCLUDE_FOLDERS}) list(APPEND ABI_INCLUDE "-extra-arg=-I${folder}") endforeach() foreach(folder ${ARG_SYSTEM_INCLUDE_FOLDERS}) list(APPEND ABI_INCLUDE "-extra-arg=-I${folder}") endforeach() #message("ABI_INCLUDE ${ABI_INCLUDE}") if ("${ARG_SOURCE_FILES}" STREQUAL "") set(SOURCE_FILES ${target}.cpp) else() set(SOURCE_FILES ${ARG_SOURCE_FILES}) endif() compile_wast(${ARGV}) foreach(lib ${ARG_LIBRARIES}) list(APPEND LIBRARIES ${${lib}_BC_FILENAME}) endforeach() #message("lib---${LIBRARIES} outfile :${outfile}") add_custom_command(OUTPUT ${target}.bc DEPENDS ${outfiles} ${ARG_LIBRARIES} ${LIBRARIES} ${ARG_ABI} COMMAND ${WASM_LLVM_LINK} -only-needed -o ${target}.bc ${outfiles} ${LIBRARIES} COMMENT "Linking LLVM bitcode executable ${target}.bc" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${target}.bc) add_custom_command(OUTPUT ${target}.s DEPENDS ${target}.bc COMMAND ${WASM_LLC} -thread-model=single -asm-verbose=false -o ${target}.s ${target}.bc COMMENT "Generating textual assembly ${target}.s" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${target}.s) if(ARG_MAX_MEMORY) set(MAX_MEMORY_PARAM "-m" ${ARG_MAX_MEMORY}) endif() add_custom_target(${target} ALL DEPENDS ${DESTINATION_FOLDER}/${target}.wasm) #由于binary 在windows执行成功后出现段错误，故采用执行脚本方式，强制返回成功 if(WIN32) add_custom_command(OUTPUT ${DESTINATION_FOLDER}/${target}.wast DEPENDS ${target}.s COMMAND ${PROJECT_SOURCE_DIR}/script/runwast.bat ${PLATON-S2WASM} ${DESTINATION_FOLDER}/${target}.wast 102400 ${DESTINATION_FOLDER}/${target}.s COMMENT "Generating WAST ${target}.wast" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) else() add_custom_command(OUTPUT ${DESTINATION_FOLDER}/${target}.wast DEPENDS ${target}.s COMMAND ${PLATON-S2WASM} -o ${DESTINATION_FOLDER}/${target}.wast -s 102400 ${MAX_MEMORY_PARAM} ${target}.s COMMENT "Generating WAST ${target}.wast" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) endif() set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${target}.wast) if(WIN32) add_custom_command(OUTPUT ${DESTINATION_FOLDER}/${target}.wasm DEPENDS ${target}.wast COMMAND ${PROJECT_SOURCE_DIR}/script/runwasm.bat ${PLATON-WAST2WASM} ${DESTINATION_FOLDER}/${target}.wast ${DESTINATION_FOLDER}/${target}.wasm COMMENT "Generating WAST ${target}.wasm" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) else() add_custom_command(OUTPUT ${DESTINATION_FOLDER}/${target}.wasm DEPENDS ${target}.wast COMMAND ${PLATON-WAST2WASM} ${DESTINATION_FOLDER}/${target}.wast -o ${DESTINATION_FOLDER}/${target}.wasm COMMENT "Generating WASM ${target}.wasm" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) endif() set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${target}.wasm) endmacro(compile_executable) macro(add_wast_executable) cmake_parse_arguments(ARG "NOWARNINGS" "TARGET;DESTINATION_FOLDER;MAX_MEMORY" "SOURCE_FILES;INCLUDE_FOLDERS;SYSTEM_INCLUDE_FOLDERS;LIBRARIES" ${ARGN}) set(target ${ARG_TARGET}) set(DESTINATION_FOLDER ${ARG_DESTINATION_FOLDER}) #message("compile_wast") if ("${ARG_SYSTEM_INCLUDE_FOLDERS}" STREQUAL "") set (ARG_SYSTEM_INCLUDE_FOLDERS ${DEFAULT_SYSTEM_INCLUDE_FOLDERS}) endif() set(ABI_INCLUDE "") #message("INCLUDE_FOLDERS:${ARG_INCLUDE_FOLDERS}") foreach(folder ${ARG_INCLUDE_FOLDERS}) list(APPEND ABI_INCLUDE "-extra-arg=-I${folder}") endforeach() foreach(folder ${ARG_SYSTEM_INCLUDE_FOLDERS}) list(APPEND ABI_INCLUDE "-extra-arg=-I${folder}") endforeach() #message("ABI_INCLUDE ${ABI_INCLUDE}") if ("${ARG_SOURCE_FILES}" STREQUAL "") set(SOURCE_FILES ${target}.cpp) else() set(SOURCE_FILES ${ARG_SOURCE_FILES}) endif() set(abi "") foreach(srcfile ${SOURCE_FILES}) get_filename_component(infile ${srcfile} ABSOLUTE) if (infile MATCHES ".*${target}.cpp.*") list(APPEND abi ${target}.cpp.abi.json) add_custom_target(${target}.cpp.abi.json ALL DEPENDS ${DESTINATION_FOLDER}/${target}.cpp.abi.json) add_custom_command(OUTPUT ${target}.cpp.abi.json DEPENDS ${infile} PRE_BUILD COMMAND ${PLATON-ABIGEN} -extra-arg=-std=c++14 -extra-arg=--target=wasm32 -extra-arg=-w ${ABI_INCLUDE} ${infile} -outpath=${DESTINATION_FOLDER} IMPLICIT_DEPENDS CXX ${infile} COMMENT "Generating JSON ${infle}.abi.json" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} VERBATIM ) set_property(DIRECTORY APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${infile}.abi.json) endif() endforeach() compile_executable(${ARGV} ABI ${abi} ) endmacro(add_wast_executable) macro(add_wast_test) cmake_parse_arguments(ARG "NOWARNINGS" "TARGET;DESTINATION_FOLDER;MAX_MEMORY" "SOURCE_FILES;INCLUDE_FOLDERS;SYSTEM_INCLUDE_FOLDERS;LIBRARIES" ${ARGN}) compile_executable(${ARGV}) endmacro(add_wast_test)