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add experimenal wasm32-wasi-threads support #274

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Merged
merged 4 commits into from
Jan 20, 2023
Merged

add experimenal wasm32-wasi-threads support #274

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f4fe55a
Add a variation of wasi-sdk.cmake for pthread-using apps
yamt Dec 26, 2022
a3136f7
Install wasi-sdk-pthread.cmake
yamt Dec 26, 2022
2d008b8
Build wasi-libc with THREAD_MODEL=posix as well
yamt Dec 26, 2022
bab491d
wasi-sdk-pthread.cmake: target rename to wasm32-wasi-threads
yamt Jan 13, 2023
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7 changes: 7 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,12 @@ build/wasi-libc.BUILT: build/llvm.BUILT
AR=$(BUILD_PREFIX)/bin/llvm-ar \
NM=$(BUILD_PREFIX)/bin/llvm-nm \
SYSROOT=$(BUILD_PREFIX)/share/wasi-sysroot
$(MAKE) -C $(ROOT_DIR)/src/wasi-libc \
CC=$(BUILD_PREFIX)/bin/clang \
AR=$(BUILD_PREFIX)/bin/llvm-ar \
NM=$(BUILD_PREFIX)/bin/llvm-nm \
SYSROOT=$(BUILD_PREFIX)/share/wasi-sysroot \
THREAD_MODEL=posix
touch build/wasi-libc.BUILT

build/compiler-rt.BUILT: build/llvm.BUILT build/wasi-libc.BUILT
Expand Down Expand Up @@ -196,6 +202,7 @@ build/config.BUILT:
cp src/config/config.sub src/config/config.guess $(BUILD_PREFIX)/share/misc
mkdir -p $(BUILD_PREFIX)/share/cmake
cp wasi-sdk.cmake $(BUILD_PREFIX)/share/cmake
cp wasi-sdk-pthread.cmake $(BUILD_PREFIX)/share/cmake
touch build/config.BUILT

build: build/llvm.BUILT build/wasi-libc.BUILT build/compiler-rt.BUILT build/libcxx.BUILT build/config.BUILT
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31 changes: 31 additions & 0 deletions wasi-sdk-pthread.cmake
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@@ -0,0 +1,31 @@
# Cmake toolchain description file for the Makefile

# This is arbitrary, AFAIK, for now.
cmake_minimum_required(VERSION 3.4.0)

set(CMAKE_SYSTEM_NAME WASI)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_SYSTEM_PROCESSOR wasm32)
set(triple wasm32-wasi-threads)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread")

if(WIN32)
set(WASI_HOST_EXE_SUFFIX ".exe")
else()
set(WASI_HOST_EXE_SUFFIX "")
endif()

set(CMAKE_C_COMPILER ${WASI_SDK_PREFIX}/bin/clang${WASI_HOST_EXE_SUFFIX})
set(CMAKE_CXX_COMPILER ${WASI_SDK_PREFIX}/bin/clang++${WASI_HOST_EXE_SUFFIX})
set(CMAKE_AR ${WASI_SDK_PREFIX}/bin/llvm-ar${WASI_HOST_EXE_SUFFIX})
set(CMAKE_RANLIB ${WASI_SDK_PREFIX}/bin/llvm-ranlib${WASI_HOST_EXE_SUFFIX})
set(CMAKE_C_COMPILER_TARGET ${triple})
set(CMAKE_CXX_COMPILER_TARGET ${triple})

# Don't look in the sysroot for executables to run during the build
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# Only look in the sysroot (not in the host paths) for the rest
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)