web-wasi-threads: initial addition

This is a different toolchain following how wasi-sdk defines the
platform triple and how builds are configured -- everything should be
built with the flags defined in the toolchain file.

We build from web-wasi:latest, and that is built first.

.github/workflows/main.yml

@@ -1039,6 +1039,25 @@ jobs:
               cpython: "no",
               cpython_arg: "",
             }
+          - {
+              image: "web-wasi-threads",
+              stockfish: "no",
+              stockfish_arg: "",
+              ninja: "no",
+              ninja_arg: "",
+              openssl: "no",
+              openssl_arg: "linux-generic64 no-asm no-threads no-engine no-hw no-weak-ssl-ciphers no-dtls no-shared no-dso",
+              C: "no",
+              C_arg: "",
+              C-Plus-Plus: "no",
+              C-Plus-Plus_arg: "",
+              fmt: "no",
+              fmt_arg: "",
+              raylib: "no",
+              raylib_arg: "",
+              cpython: "no",
+              cpython_arg: "",
+            }
           # Bare metal images
           - {
               image: "bare-armv7emhf-nano_newlib",

Makefile

@@ -37,7 +37,7 @@ GEN_IMAGES := android-arm android-arm64 \
 	manylinux_2_28-x64 \
 	manylinux2014-x64 manylinux2014-x86 \
 	manylinux2014-aarch64 linux-arm64-lts \
-	web-wasm web-wasi linux-mips linux-mips-uclibc linux-mips-lts windows-arm64 windows-armv7 \
+	web-wasm web-wasi web-wasi-threads linux-mips linux-mips-uclibc linux-mips-lts windows-arm64 windows-armv7 \
 	windows-static-x86 windows-static-x64 windows-static-x64-posix \
 	windows-shared-x86 windows-shared-x64 windows-shared-x64-posix \
 	linux-armv7 linux-armv7a linux-armv7l-musl linux-armv7-lts linux-armv7a-lts linux-x86_64-full \
@@ -50,7 +50,7 @@ GEN_IMAGE_DOCKERFILES = $(addsuffix /Dockerfile,$(GEN_IMAGES))
 
 # These images are expected to have explicit rules for *both* build and testing
 NON_STANDARD_IMAGES := manylinux_2_28-x64 manylinux2014-x64 manylinux2014-x86 \
-		      manylinux2014-aarch64 web-wasm
+		      manylinux2014-aarch64 web-wasm web-wasi-threads
 
 # Docker composite files
 DOCKER_COMPOSITE_SOURCES = common.docker common.debian common.manylinux2014 common.manylinux_2_28 common.buildroot \
@@ -143,6 +143,26 @@ web-wasm.test: web-wasm
 	rm -rf web-wasm/test
 
 #
+# web-wasi-threads
+#
+web-wasi-threads: web-wasi web-wasi-threads/Dockerfile
+	mkdir -p $@/imagefiles && cp -r imagefiles $@/
+	cp -r test web-wasi-threads/
+	$(DOCKER) $(BUILD_CMD) -t $(ORG)/web-wasi-threads:$(TAG) \
+		-t $(ORG)/web-wasi-threads:latest \
+		--build-arg IMAGE=$(ORG)/web-wasi-threads \
+		--build-arg VERSION=$(TAG) \
+		--build-arg VCS_REF=`git rev-parse --short HEAD` \
+		--build-arg VCS_URL=`git config --get remote.origin.url` \
+		--build-arg BUILD_DATE=`date -u +"%Y-%m-%dT%H:%M:%SZ"` \
+		web-wasi-threads
+
+web-wasi-threads.test: web-wasi-threads
+	$(DOCKER) run $(RM) $(ORG)/web-wasi-threads:latest > $(BIN)/dockcross-web-wasi-threads \
+		&& chmod +x $(BIN)/dockcross-web-wasi-threads
+	$(BIN)/dockcross-web-wasi-threads -i $(ORG)/web-wasi-threads:latest python3 test/run.py
+	rm -rf web-wasi-threads/test
+#
 # manylinux2014-aarch64
 #
 manylinux2014-aarch64: manylinux2014-aarch64/Dockerfile

README.md

@@ -122,6 +122,7 @@ The dockcross script will execute the given command-line inside the container, a
 | dockcross/linux-x64-tinycc | x86_64 | tinycc + GCC | Linux |
 | dockcross/web-wasm | Wasm | LLVM | Web (JS) |
 | dockcross/web-wasi | Wasm | LLVM | Web (Universal) |
+| dockcross/web-wasi-threads | Wasm | LLVM | Web (Universal) |
 | dockcross/windows-shared-x86 | x86 | GCC | Windows |
 | dockcross/windows-shared-x64 | x86_64 | GCC | Windows |
 | dockcross/windows-shared-x64-posix | x86_64 | GCC | Windows |
@@ -403,6 +404,12 @@ The [Emscripten](https://emscripten.org/) [WebAssembly](https://webassembly.org/
 
 The [WebAssembly System Interface (WASI)](https://wasi.dev/) SDK LLVM/Clang/WASI Sysroot cross compiler.
 
+### dockcross/web-wasi-threads
+
+![Docker Image Size (tag)](https://img.shields.io/docker/image-size/dockcross/web-wasi-threads/latest) ![Docker Pulls](https://img.shields.io/docker/pulls/dockcross/web-wasi-threads)
+
+The [WebAssembly System Interface (WASI)](https://wasi.dev/) SDK LLVM/Clang/WASI Sysroot cross compiler with the toolchain configured to enable the wasm threading proposal.
+
 ### dockcross/windows-static-x64
 
 ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/dockcross/windows-static-x64/latest) ![Docker Pulls](https://img.shields.io/docker/pulls/dockcross/windows-static-x64)

common/common.webassembly

@@ -47,6 +47,7 @@ RUN mkdir /wasi-runtimes
 ENV WASMTIME_HOME /wasi-runtimes/wasmtime
 RUN mkdir ${WASMTIME_HOME} && curl https://wasmtime.dev/install.sh -sSf | bash
 COPY imagefiles/wasmtime-pwd.sh ${WASMTIME_HOME}/bin/
+COPY imagefiles/wasmtime-pwd-threads.sh ${WASMTIME_HOME}/bin/
 ENV PATH "$WASMTIME_HOME/bin:$PATH"
 
 # For wasmer

imagefiles/wasmtime-pwd-threads.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# Mount the PWD and the /work mount dir to enable access in try_run commands
+exec ${WASMTIME_HOME}/bin/wasmtime -S threads=y run --dir=. --dir=$PWD --dir=/work/ "$@"

web-wasi-threads/Dockerfile.in

@@ -0,0 +1,11 @@
+ARG ORG=dockcross
+FROM ${ORG}/web-wasi:latest
+
+LABEL maintainer="Matt McCormick matt.mccormick@kitware.com"
+
+ENV CROSS_TRIPLE=wasm32-wasi-threads
+
+COPY Toolchain.cmake ${CROSS_ROOT}/
+ENV CMAKE_TOOLCHAIN_FILE ${CROSS_ROOT}/Toolchain.cmake
+
+#include "common.label-and-env"

web-wasi-threads/Toolchain.cmake

@@ -0,0 +1,17 @@
+set(WASI_SDK_PREFIX $ENV{WASI_SDK_PATH})
+include($ENV{WASI_SDK_PATH}/share/cmake/wasi-sdk-pthread.cmake)
+
+set(CMAKE_FIND_ROOT_PATH $ENV{CROSS_ROOT})
+set(CMAKE_SYSROOT $ENV{WASI_SYSROOT})
+
+set(CMAKE_C_COMPILER /usr/local/bin/clang-wasi-sysroot.sh)
+set(CMAKE_CXX_COMPILER /usr/local/bin/clang++-wasi-sysroot.sh)
+set(CMAKE_AR llvm-ar-$ENV{LLVM_VERSION})
+set(CMAKE_RANLIB llvm-ranlib-$ENV{LLVM_VERSION})
+set(CMAKE_ASM_COMPILER clang-$ENV{LLVM_VERSION})
+
+set(CMAKE_C_COMPILER_TARGET $ENV{CROSS_TRIPLE})
+set(CMAKE_CXX_COMPILER_TARGET $ENV{CROSS_TRIPLE})
+set(CMAKE_ASM_COMPILER_TARGET $ENV{CROSS_TRIPLE})
+
+set(CMAKE_CROSSCOMPILING_EMULATOR /wasi-runtimes/wasmtime/bin/wasmtime-pwd-threads.sh)