Enable CI build for gcc 4.8 on linux (#2106)

In #1928 we added support for GCC 4.8 but we don't continuously test if it's
working. This PR added a GitHub actions job to test compilation on GCC 4.8
for interpreters and Fast JIT (LLVM JIT/AOT might be added in the future).

The compilation is done using ubuntu 14.04 image as that's the simplest way
to get GCC 4.8 compiler. The job only compiles the code but does not run any
tests.

.github/workflows/compilation_on_android_ubuntu.yml

@@ -115,6 +115,84 @@ jobs:
           cmake --build . --config Release --parallel 4
         working-directory: wamr-compiler
 
+  build_iwasm_linux_gcc4_8:
+    runs-on: ubuntu-latest
+    container:
+      image: ubuntu:14.04
+    strategy:
+      matrix:
+        make_options_run_mode: [
+            # Running mode
+            $CLASSIC_INTERP_BUILD_OPTIONS,
+            $FAST_INTERP_BUILD_OPTIONS,
+            $FAST_JIT_BUILD_OPTIONS
+        ]
+        make_options_feature: [
+            # Features
+            "-DWAMR_BUILD_CUSTOM_NAME_SECTION=1",
+            "-DWAMR_BUILD_DEBUG_AOT=1",
+            "-DWAMR_BUILD_DEBUG_INTERP=1",
+            "-DWAMR_BUILD_DUMP_CALL_STACK=1",
+            "-DWAMR_BUILD_LIB_PTHREAD=1",
+            "-DWAMR_BUILD_LIB_WASI_THREADS=1",
+            "-DWAMR_BUILD_LOAD_CUSTOM_SECTION=1",
+            "-DWAMR_BUILD_MINI_LOADER=1",
+            "-DWAMR_BUILD_MEMORY_PROFILING=1",
+            "-DWAMR_BUILD_MULTI_MODULE=1",
+            "-DWAMR_BUILD_PERF_PROFILING=1",
+            "-DWAMR_BUILD_REF_TYPES=1",
+            "-DWAMR_BUILD_SIMD=1",
+            "-DWAMR_BUILD_TAIL_CALL=1",
+            "-DWAMR_DISABLE_HW_BOUND_CHECK=1",
+          ]
+        exclude:
+          # uncompatiable feature and platform
+          # uncompatiable mode and feature
+          # MULTI_MODULE only on INTERP mode
+          - make_options_run_mode: $FAST_JIT_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_MULTI_MODULE=1"
+          # SIMD only on JIT/AOT mode
+          - make_options_run_mode: $CLASSIC_INTERP_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_SIMD=1"
+          - make_options_run_mode: $FAST_INTERP_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_SIMD=1"
+          # DEBUG_INTERP only on CLASSIC INTERP mode
+          - make_options_run_mode: $FAST_INTERP_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_DEBUG_INTERP=1"
+          - make_options_run_mode: $FAST_JIT_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_DEBUG_INTERP=1"
+          # DEBUG_AOT only on JIT/AOT mode
+          - make_options_run_mode: $CLASSIC_INTERP_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_DEBUG_AOT=1"
+          - make_options_run_mode: $FAST_INTERP_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_DEBUG_AOT=1"
+          # TODO: DEBUG_AOT on JIT
+          - make_options_run_mode: $FAST_JIT_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_DEBUG_AOT=1"
+          # MINI_LOADER only on INTERP mode
+          - make_options_run_mode: $FAST_JIT_BUILD_OPTIONS
+            make_options_feature: "-DWAMR_BUILD_MINI_LOADER=1"
+    steps:
+      - name: checkout
+        uses: actions/checkout@v3
+
+      - name: Install dependencies
+        run: apt update && apt install -y make g++-4.8 gcc-4.8 wget git
+
+      - name: Install cmake
+        run: |
+          wget https://github.com/Kitware/CMake/releases/download/v3.26.1/cmake-3.26.1-linux-x86_64.tar.gz -O cmake.tar.gz
+          tar xzf cmake.tar.gz
+          cp cmake-3.26.1-linux-x86_64/bin/cmake /usr/local/bin
+          cp -r cmake-3.26.1-linux-x86_64/share/cmake-3.26/ /usr/local/share/
+
+      - name: Build iwasm
+        run: |
+          mkdir build && cd build
+          cmake .. ${{ matrix.make_options_run_mode }} ${{ matrix.make_options_feature }} -DCMAKE_C_COMPILER=gcc-4.8 -DCMAKE_CXX_COMPILER=g++-4.8
+          cmake --build . --config Release --parallel 4
+        working-directory: product-mini/platforms/linux
+
   build_iwasm:
     needs:
       [build_llvm_libraries_on_ubuntu_2004, build_llvm_libraries_on_ubuntu_2204]

core/shared/platform/include/platform_api_extension.h

@@ -116,6 +116,11 @@ os_thread_exit(void *retval);
    https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58016 */
 #if __GNUC_PREREQ(4, 9)
 #define BH_HAS_STD_ATOMIC
+#elif __GNUC_PREREQ(4, 7)
+#define os_memory_order_acquire __ATOMIC_ACQUIRE
+#define os_memory_order_release __ATOMIC_RELEASE
+#define os_memory_order_seq_cst __ATOMIC_SEQ_CST
+#define os_atomic_thread_fence __atomic_thread_fence
 #endif /* end of __GNUC_PREREQ(4, 9) */
 #endif /* end of defined(__GNUC_PREREQ) */
 

product-mini/platforms/linux/CMakeLists.txt

@@ -16,6 +16,7 @@ set (CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")
 set (CMAKE_SHARED_LIBRARY_LINK_CXX_FLAGS "")
 
 set (CMAKE_C_STANDARD 99)
+set (CMAKE_CXX_STANDARD 14)
 
 # Set WAMR_BUILD_TARGET, currently values supported:
 # "X86_64", "AMD_64", "X86_32", "AARCH64[sub]", "ARM[sub]", "THUMB[sub]",