shared heap: Fix some issues and add basic unit test case (#3801)

Fix some issues and add basic unit test case for shared heap feature.

Signed-off-by: wenlingyun1 <wenlingyun1@xiaomi.com>

tests/unit/shared-heap/wasm-apps/CMakeLists.txt

@@ -0,0 +1,39 @@
+# Copyright (C) 2024 Xiaomi Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+cmake_minimum_required(VERSION 3.14)
+project(wasm-apps)
+
+set(WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../..)
+
+set(CMAKE_SYSTEM_PROCESSOR wasm32)
+set(CMAKE_SYSROOT ${WAMR_ROOT_DIR}/wamr-sdk/app/libc-builtin-sysroot)
+
+if (NOT DEFINED WASI_SDK_DIR)
+    set(WASI_SDK_DIR "/opt/wasi-sdk")
+endif ()
+
+set(CMAKE_C_FLAGS "-nostdlib -pthread -Qunused-arguments")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -z stack-size=8192 -nostdlib -O0")
+set(CMAKE_C_COMPILER_TARGET "wasm32")
+set(CMAKE_C_COMPILER "${WASI_SDK_DIR}/bin/clang")
+
+set(DEFINED_SYMBOLS
+        "${WAMR_ROOT_DIR}/wamr-sdk/app/libc-builtin-sysroot/share/defined-symbols.txt")
+
+set(CMAKE_EXE_LINKER_FLAGS
+        "-Wl,--no-entry           \
+      -Wl,--initial-memory=65536  \
+      -Wl,--export-all            \
+      -Wl,--allow-undefined"
+        )
+
+add_executable(test.wasm test.c)
+target_link_libraries(test.wasm)
+
+add_custom_command(TARGET test.wasm POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+        ${CMAKE_CURRENT_BINARY_DIR}/test.wasm
+        ${CMAKE_CURRENT_BINARY_DIR}/../
+        COMMENT "Copy test.wasm to the same directory of google test"
+        )

tests/unit/shared-heap/wasm-apps/test.c

@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2024 Xiaomi Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+#include <stdio.h>
+
+extern void *
+shared_malloc(int size);
+extern void
+shared_free(void *offset);
+
+int
+test()
+{
+    int *ptr = (int *)shared_malloc(10);
+
+    *ptr = 10;
+    int a = *ptr;
+    shared_free(ptr);
+    return a;
+}