add wasi-sdk-p2.cmake

This is analogous to wasi-sdk.cmake and wasi-sdk-pthread.cmake, but for WASIp2.

Signed-off-by: Joel Dice <joel.dice@fermyon.com>

Makefile

@@ -267,6 +267,7 @@ build/config.BUILT:
 	mkdir -p $(BUILD_PREFIX)/share/cmake/Platform
 	cp wasi-sdk.cmake $(BUILD_PREFIX)/share/cmake
 	cp wasi-sdk-pthread.cmake $(BUILD_PREFIX)/share/cmake
+	cp wasi-sdk-p2.cmake $(BUILD_PREFIX)/share/cmake
 	cp cmake/Platform/WASI.cmake $(BUILD_PREFIX)/share/cmake/Platform
 	touch build/config.BUILT
 

docker/Dockerfile

@@ -38,6 +38,7 @@ COPY --from=dist /wasi-sysroot-clang_rt/lib/wasi /usr/lib/llvm-${LLVM_VERSION}/l
 
 ADD docker/wasi-sdk.cmake /usr/share/cmake/wasi-sdk.cmake
 ADD docker/wasi-sdk-pthread.cmake /usr/share/cmake/wasi-sdk-pthread.cmake
+ADD docker/wasi-sdk-p2.cmake /usr/share/cmake/wasi-sdk-p2.cmake
 ENV CMAKE_TOOLCHAIN_FILE /usr/share/cmake/wasi-sdk.cmake
 ADD cmake/Platform/WASI.cmake /usr/share/cmake/Modules/Platform/WASI.cmake
 

docker/wasi-sdk-p2.cmake

@@ -0,0 +1,29 @@
+# Cmake toolchain description file for the wasi-sdk docker image
+
+# This is arbitrary, AFAIK, for now.
+cmake_minimum_required(VERSION 3.4.0)
+
+# To make sure it recognizes the WASI platform
+list(APPEND CMAKE_MODULE_PATH /usr/share/cmake/Modules)
+
+set(CMAKE_SYSTEM_NAME WASI)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR wasm32)
+set(triple wasm32-wasip2)
+
+set(CMAKE_C_COMPILER /usr/bin/clang-$ENV{LLVM_VERSION})
+set(CMAKE_CXX_COMPILER /usr/bin/clang++-$ENV{LLVM_VERSION})
+set(CMAKE_ASM_COMPILER /usr/bin/clang-$ENV{LLVM_VERSION})
+set(CMAKE_AR /usr/bin/llvm-ar-$ENV{LLVM_VERSION})
+set(CMAKE_RANLIB /usr/bin/llvm-ranlib-$ENV{LLVM_VERSION})
+set(CMAKE_C_COMPILER_TARGET ${triple})
+set(CMAKE_CXX_COMPILER_TARGET ${triple})
+set(CMAKE_ASM_COMPILER_TARGET ${triple})
+SET(CMAKE_SYSROOT /wasi-sysroot)
+
+# 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)

wasi-sdk-p2.cmake

@@ -0,0 +1,40 @@
+# Cmake toolchain description file for the Makefile
+
+# This is arbitrary, AFAIK, for now.
+cmake_minimum_required(VERSION 3.4.0)
+
+# Until Platform/WASI.cmake is upstream we need to inject the path to it
+# into CMAKE_MODULE_PATH.
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}")
+
+set(CMAKE_SYSTEM_NAME WASI)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR wasm32)
+set(triple wasm32-wasip2)
+
+if(WIN32)
+	set(WASI_HOST_EXE_SUFFIX ".exe")
+else()
+	set(WASI_HOST_EXE_SUFFIX "")
+endif()
+
+# When building from source, WASI_SDK_PREFIX represents the generated directory
+if(NOT WASI_SDK_PREFIX)
+    set(WASI_SDK_PREFIX ${CMAKE_CURRENT_LIST_DIR}/../../)
+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_ASM_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})
+set(CMAKE_ASM_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)