Add standalone cases (#3536)

tests/standalone/test-module-malloc/wasm-app/CMakeLists.txt

@@ -0,0 +1,32 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+cmake_minimum_required(VERSION 3.0)
+project(wasm-app)
+
+set (WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../..)
+
+if (APPLE)
+    set (HAVE_FLAG_SEARCH_PATHS_FIRST 0)
+    set (CMAKE_C_LINK_FLAGS "")
+    set (CMAKE_CXX_LINK_FLAGS "")
+endif ()
+
+set (CMAKE_SYSTEM_PROCESSOR wasm32)
+
+if (NOT DEFINED WASI_SDK_DIR)
+    set (WASI_SDK_DIR               "/opt/wasi-sdk")
+endif ()
+
+set (CMAKE_C_COMPILER_TARGET        "wasm32")
+set (CMAKE_C_COMPILER               "${WASI_SDK_DIR}/bin/clang")
+
+set (CMAKE_EXE_LINKER_FLAGS
+    "-Wl,--max-memory=131072 -z stack-size=8192   \
+     -Wl,--export=malloc                          \
+     -Wl,--export=free                            \
+     -Wl,--allow-undefined"
+)
+
+add_executable(test.wasm main.c)
+target_link_libraries(test.wasm)

tests/standalone/test-module-malloc/wasm-app/main.c

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+void *
+test_module_malloc(unsigned buf_size);
+
+void
+test_module_free(void *buf);
+
+int
+main(int argc, char **argv)
+{
+    char *buf = NULL;
+
+    printf("Hello World!\n");
+
+    buf = test_module_malloc(1024);
+    if (buf) {
+        printf("module_malloc(1024) success, return %p\n", buf);
+        snprintf(buf, 1024, "%s", "Hello world!\n");
+    }
+    else {
+        printf("module_malloc(1024) failed!\n");
+        return -1;
+    }
+
+    test_module_free(buf);
+
+    buf = test_module_malloc(32 * 1024 * 1024);
+    if (!buf) {
+        printf("module_malloc(32MB) failed => expected, not an issue\n");
+    }
+    else {
+        printf("module_malloc(32MB) success, unexpected!\n");
+        return -1;
+    }
+
+    return 0;
+}