Implement shared heap for AOT (#3815)

samples/shared-heap/wasm-apps/CMakeLists.txt

@@ -26,12 +26,12 @@ 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,--initial-memory=65536,                  \
+     "-O0 -Wl,--initial-memory=65536,              \
       -Wl,--no-entry,--strip-all,                  \
       -Wl,--export=__heap_base,--export=__data_end \
       -Wl,--export=__wasm_call_ctors               \
-      -Wl,--export=my_shared_malloc                \
-      -Wl,--export=my_shared_free                  \
+      -Wl,--export=my_shared_heap_malloc           \
+      -Wl,--export=my_shared_heap_free             \
       -Wl,--export=print_buf                       \
       -Wl,--allow-undefined"
 )

samples/shared-heap/wasm-apps/test1.c

@@ -5,26 +5,56 @@
 
 #include <stdio.h>
 #include <stdint.h>
+#include <string.h>
 
 extern void *
-shared_malloc(uint32_t size);
+shared_heap_malloc(uint32_t size);
 extern void
-shared_free(void *ptr);
+shared_heap_free(void *ptr);
 
 void *
-my_shared_malloc(uint32_t size, uint32_t index)
+my_shared_heap_malloc(uint32_t size, uint32_t index)
 {
-    char *buf = shared_malloc(size);
+    char *buf1 = NULL, *buf2 = NULL, *buf;
 
-    if (buf)
-        snprintf(buf, 1024, "Hello, this is buf %u allocated from shared heap",
-                 index);
+    buf1 = shared_heap_malloc(128);
+    if (!buf1)
+        return NULL;
 
+    buf1[0] = 'H';
+    buf1[1] = 'e';
+    buf1[2] = 'l';
+    buf1[3] = 'l';
+    buf1[4] = 'o';
+    buf1[5] = ',';
+    buf1[6] = ' ';
+
+    buf2 = shared_heap_malloc(128);
+    if (!buf2) {
+        shared_heap_free(buf1);
+        return NULL;
+    }
+
+    snprintf(buf2, 128, "this is buf %u allocated from shared heap", index);
+
+    buf = shared_heap_malloc(size);
+    if (!buf) {
+        shared_heap_free(buf1);
+        shared_heap_free(buf2);
+        return NULL;
+    }
+
+    memset(buf, 0, size);
+    memcpy(buf, buf1, strlen(buf1));
+    memcpy(buf + strlen(buf1), buf2, strlen(buf2));
+
+    shared_heap_free(buf1);
+    shared_heap_free(buf2);
     return buf;
 }
 
 void
-my_shared_free(void *ptr)
+my_shared_heap_free(void *ptr)
 {
-    shared_free(ptr);
+    shared_heap_free(ptr);
 }

samples/shared-heap/wasm-apps/test2.c

@@ -8,11 +8,11 @@
 #include <stdio.h>
 
 extern void
-shared_free(void *ptr);
+shared_heap_free(void *ptr);
 
 void
 print_buf(char *buf)
 {
     printf("wasm app2's wasm func received buf: %s\n\n", buf);
-    shared_free(buf);
+    shared_heap_free(buf);
 }