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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.11)
# Detect WasiEnv
if(DEFINED ENV{WASI_CC} OR DEFINED WASI_SDK_PREFIX)
set(WASIENV 1)
endif()
# Detect MinGW
if(WIN32 AND CMAKE_C_COMPILER_ID MATCHES "GNU")
set(MINGW 1)
endif()
# Set options
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "set build type to Release")
endif()
if(WASIENV)
set(BUILD_WASI "metawasi" CACHE STRING "WASI implementation")
elseif(EMSCRIPTEN OR EMSCRIPTEN_LIB)
set(BUILD_WASI "none" CACHE STRING "WASI implementation")
else()
set(BUILD_WASI "uvwasi" CACHE STRING "WASI implementation")
endif()
set_property(CACHE BUILD_WASI PROPERTY STRINGS none simple uvwasi metawasi)
option(BUILD_NATIVE "Build with machine-specific optimisations" ON)
set(OUT_FILE "wasm3")
if(NOT APP_DIR)
set(APP_DIR "platforms/app")
endif()
# Configure the toolchain
if(CLANG OR CLANG_SUFFIX)
set(CMAKE_C_COMPILER "clang${CLANG_SUFFIX}")
set(CMAKE_CXX_COMPILER "clang++${CLANG_SUFFIX}")
if(BUILD_FUZZ)
set(CMAKE_TRY_COMPILE_TARGET_TYPE "STATIC_LIBRARY")
set(OUT_FILE "wasm3-fuzzer")
set(APP_DIR "platforms/app_fuzz")
set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "set build type to Debug")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=fuzzer,address")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=fuzzer,address")
endif()
endif()
if(WASIENV)
set(OUT_FILE "wasm3.wasm")
endif()
if(CLANG_CL)
set(CMAKE_C_COMPILER "clang-cl")
set(CMAKE_CXX_COMPILER "clang-cl")
set(CMAKE_LINKER "lld-link")
endif()
if(EMSCRIPTEN OR EMSCRIPTEN_LIB)
set(CMAKE_C_COMPILER "emcc")
set(CMAKE_CXX_COMPILER "em++")
if (EMSCRIPTEN_LIB)
set(APP_DIR "platforms/emscripten_lib")
set(OUT_FILE "wasm3.wasm")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s STANDALONE_WASM")
else()
set(APP_DIR "platforms/emscripten")
set(OUT_FILE "wasm3.html")
endif()
endif()
if(BUILD_32BIT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
endif()
project(wasm3)
message("----")
message("Generator: ${CMAKE_GENERATOR}")
message("Compiler: ${CMAKE_C_COMPILER_ID}")
message("Build Type: ${CMAKE_BUILD_TYPE}")
include(CheckIPOSupported)
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_STANDARD_REQUIRED YES)
set(CMAKE_C_EXTENSIONS NO)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED YES)
set(CMAKE_CXX_EXTENSIONS NO)
file(GLOB app_srcs "${APP_DIR}/*.c")
add_executable(${OUT_FILE} ${app_srcs})
#-fno-optimize-sibling-calls
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -DDEBUG=1")
if(EMSCRIPTEN OR EMSCRIPTEN_LIB)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s GLOBAL_BASE=1024 -s TOTAL_STACK=2MB -s INITIAL_MEMORY=4MB -s ALLOW_MEMORY_GROWTH")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -s EXPORTED_FUNCTIONS=\"[\\\"_malloc\\\",\\\"_free\\\",\\\"_main\\\"]\"")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -flto -Wfatal-errors -s ASSERTIONS=0")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} --strip-all --gc-sections")
if(WASM_EXT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mbulk-memory -mnontrapping-fptoint -msign-ext -mtail-call")
endif()
elseif(WASIENV)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasTracer")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -Wfatal-errors -fomit-frame-pointer -fno-stack-check -fno-stack-protector")
if(WASM_EXT)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mbulk-memory -mnontrapping-fptoint -msign-ext -mtail-call")
endif()
# TODO: LTO breaks wasm imports currently:
# https://www.mail-archive.com/llvm-bugs@lists.llvm.org/msg36273.html
#-flto -Wl,--lto-O3
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,stack-size=8388608")
elseif(MSVC OR CMAKE_C_COMPILER_FRONTEND_VARIANT MATCHES "MSVC")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasTracer -D_CRT_SECURE_NO_WARNINGS /WX- /diagnostics:column")
string(REGEX REPLACE "/W[0-4]" "/W0" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
if (CMAKE_C_COMPILER_ID MATCHES "MSVC")
if("${CMAKE_SIZEOF_VOID_P}" STREQUAL "4")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /d2noftol3")
endif()
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Oxs /Oy /GS- /Zi /Zo /arch:AVX2")
# Uncomment this if you want to disassemble the release build,
# for example: dumpbin /DISASM wasm3.exe /out:wasm3.S
#set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /DEBUG:FULL")
else()
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Oxs /Oy /GS- /Qvec -Clang -O3")
endif()
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /STACK:8388608") # stack size
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasTracer") #-Dd_m3FixedHeap=1048576
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wparentheses -Wundef -Wpointer-arith -Wstrict-aliasing=2")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror=implicit-function-declaration") # -Werror=cast-align
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-function -Wno-unused-variable -Wno-unused-parameter -Wno-missing-field-initializers")
if (CMAKE_C_COMPILER_ID MATCHES "Clang")
# TODO: Place clang-specific options here
elseif(CMAKE_C_COMPILER_ID MATCHES "Intel")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fp-model precise")
elseif(CMAKE_C_COMPILER_ID MATCHES "GNU")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wjump-misses-init")
endif()
set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -ggdb -O0")
set(CMAKE_C_FLAGS_RELEASE "-O3 -Wfatal-errors -fomit-frame-pointer -fno-stack-check -fno-stack-protector") #-fno-inline
if(BUILD_NATIVE)
if(APPLE AND CMAKE_C_COMPILER_ID MATCHES "Clang" AND CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm64")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -mcpu=native")
elseif(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "x86_64")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -march=native")
endif()
endif()
set(CMAKE_EXE_LINKER_FLAGS_DEBUG "-O0")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE "-O3")
target_link_libraries(${OUT_FILE} m)
endif()
target_link_libraries(${OUT_FILE} m3)
if(BUILD_WASI MATCHES "simple")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasWASI")
elseif(BUILD_WASI MATCHES "metawasi")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasMetaWASI")
elseif(BUILD_WASI MATCHES "uvwasi")
include(FetchContent)
FetchContent_Declare(
uvwasi
GIT_REPOSITORY https://github.com/nodejs/uvwasi.git
GIT_TAG v0.0.18
)
FetchContent_GetProperties(uvwasi)
if(NOT uvwasi_POPULATED)
FetchContent_Populate(uvwasi)
include_directories("${uvwasi_SOURCE_DIR}/include")
add_subdirectory(${uvwasi_SOURCE_DIR} ${uvwasi_BINARY_DIR} EXCLUDE_FROM_ALL)
endif()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Dd_m3HasUVWASI")
target_link_libraries(${OUT_FILE} uvwasi_a uv_a)
endif()
check_ipo_supported(RESULT result)
if(result AND NOT WASIENV) # TODO: LTO breaks wasm imports
set_property(TARGET ${OUT_FILE} PROPERTY INTERPROCEDURAL_OPTIMIZATION True)
message("LTO: ON")
else()
message("LTO: OFF")
endif()
add_subdirectory(source)
message("Flags: ${CMAKE_C_FLAGS}")
message("Debug flags: ${CMAKE_C_FLAGS_DEBUG}")
message("Release flags: ${CMAKE_C_FLAGS_RELEASE}")
message("----")
# Install
include(GNUInstallDirs)
install(TARGETS ${OUT_FILE} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})