Fix some compile issues of samples (#690)

Fix compile errors of workloads due to emsdk version upgrade,
enable BUILD_TARGET auto set for some samples,
and call wasm_runtime_init_thread_env() for in thread routine which
was created by pthread_create but not runtime in spawn-thread sample.

Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>

samples/workload/docker/Dockerfile

@@ -4,19 +4,10 @@ RUN apt update \
       && apt install -y lsb-release software-properties-common build-essential \
           wget curl git tree zip unzip
 
-#
-# install clang and llvm
-# COPY llvm.sh /tmp
-# RUN apt update \
-#     && apt install -y lsb-release wget software-properties-common build-essential \
-#     && cd /tmp \
-#     && chmod a+x llvm.sh \
-#     && ./llvm.sh 11
-
 ARG WASI_SDK_VER=12
-ARG WABT_VER=1.0.20
+ARG WABT_VER=1.0.23
 ARG CMAKE_VER=3.16.2
-ARG BINARYEN_VER=version_97
+ARG BINARYEN_VER=version_101
 
 #
 # install wasi-sdk
@@ -52,8 +43,8 @@ RUN cd /opt \
     && git clone https://github.com/emscripten-core/emsdk.git \
     && cd emsdk \
     && git pull \
-    && ./emsdk install latest \
-    && ./emsdk activate latest \
+    && ./emsdk install 2.0.12 \
+    && ./emsdk activate 2.0.12 \
     && echo "source /opt/emsdk/emsdk_env.sh" >> /root/.bashrc
 
 #
@@ -73,6 +64,9 @@ RUN cd /opt/bazelisk/bin/ \
       && chmod a+x bazelisk \
       && ln -sf /opt/bazelisk/bin/bazelisk /usr/local/bin/bazel
 
+RUN apt update \
+      && apt install -y python2.7-minimal
+
 #
 # Clean up
 RUN apt-get autoremove -y \

samples/workload/docker/docker_build.sh

@@ -10,9 +10,9 @@ if [[ ! -d ${BUILD_CONTENT} ]]; then
 fi
 
 readonly WASI_SDK_VER=12
-readonly WABT_VER=1.0.20
+readonly WABT_VER=1.0.23
 readonly CMAKE_VER=3.16.2
-readonly BINARYEN_VER=version_97
+readonly BINARYEN_VER=version_101
 readonly BAZELISK_VER=1.7.5
 
 cd ${BUILD_CONTENT} || exit
@@ -24,10 +24,6 @@ if [[ ! -f wabt-${WABT_VER}-ubuntu.tar.gz ]]; then
   wget https://github.com/WebAssembly/wabt/releases/download/${WABT_VER}/wabt-${WABT_VER}-ubuntu.tar.gz
 fi
 
-# if [[ ! -f llvm.sh ]]; then
-#   wget https://apt.llvm.org/llvm.sh
-# fi
-
 if [[ ! -f cmake-${CMAKE_VER}-Linux-x86_64.sh ]]; then
   wget https://github.com/Kitware/CMake/releases/download/v${CMAKE_VER}/cmake-${CMAKE_VER}-Linux-x86_64.sh
 fi
@@ -36,7 +32,7 @@ if [[ ! -f binaryen-${BINARYEN_VER}-x86_64-linux.tar.gz ]]; then
   wget https://github.com/WebAssembly/binaryen/releases/download/${BINARYEN_VER}/binaryen-${BINARYEN_VER}-x86_64-linux.tar.gz
 fi
 
-if [[ ! -f bazelisk-linux-amd64.sh ]]; then
+if [[ ! -f bazelisk-linux-amd64 ]]; then
   wget https://github.com/bazelbuild/bazelisk/releases/download/v${BAZELISK_VER}/bazelisk-linux-amd64
 fi
 cd - > /dev/null || exit
@@ -48,10 +44,10 @@ docker build \
     --build-arg WABT_VER=${WABT_VER} \
     --build-arg CMAKE_VER=${CMAKE_VER} \
     --build-arg BINARYEN_VER=${BINARYEN_VER} \
-    -t clang_env:0.1 -f "${DOCKERFILE_PATH}"/Dockerfile ${BUILD_CONTENT} \
+    -t wamr_workload_env:0.1 -f "${DOCKERFILE_PATH}"/Dockerfile ${BUILD_CONTENT} \
   && docker run --rm \
       --name workload_w_clang \
       --mount type=bind,source="$(pwd)",target=/data/project \
       -w /data/project \
-      clang_env:0.1 \
+      wamr_workload_env:0.1 \
       /bin/bash -c /build.sh