Fix aot relocation symbols not found on windows 32-bit (#3231)

The symbols in windows 32-bit may start with '_' and can not be found
when resolving the relocations to them. This PR ignores the underscore
when handling the relocation name of AOT_FUNC_INTERNAL_PREFIX, and
redirect the relocation with name "_aot_stack_sizes" to the relocation with
name ".aot_stack_sizes" (the name of the data section created).

ps.
https://github.com/bytecodealliance/wasm-micro-runtime/issues/3216

core/iwasm/aot/aot_loader.c

@@ -2917,6 +2917,17 @@ do_text_relocation(AOTModule *module, AOTRelocationGroup *group,
             }
             symbol_addr = module->func_ptrs[func_index];
         }
+        else if (!strncmp(symbol, "_" AOT_FUNC_INTERNAL_PREFIX,
+                          strlen("_" AOT_FUNC_INTERNAL_PREFIX))) {
+            p = symbol + strlen("_" AOT_FUNC_INTERNAL_PREFIX);
+            if (*p == '\0'
+                || (func_index = (uint32)atoi(p)) > module->func_count) {
+                set_error_buf_v(error_buf, error_buf_size, "invalid symbol %s",
+                                symbol);
+                goto check_symbol_fail;
+            }
+            symbol_addr = module->func_ptrs[func_index];
+        }
 #endif
         else if (is_text_section(symbol)) {
             symbol_addr = module->code;

core/iwasm/compilation/aot_emit_aot_file.c

@@ -3947,7 +3947,12 @@ aot_resolve_object_relocation_group(AOTObjectData *obj_data,
          * Note: aot_stack_sizes_section_name section only contains
          * stack_sizes table.
          */
-        if (!strcmp(relocation->symbol_name, aot_stack_sizes_name)) {
+        if (!strcmp(relocation->symbol_name, aot_stack_sizes_name)
+            /* in windows 32, the symbol name may start with '_' */
+            || (strlen(relocation->symbol_name) > 0
+                && relocation->symbol_name[0] == '_'
+                && !strcmp(relocation->symbol_name + 1,
+                           aot_stack_sizes_name))) {
             /* discard const */
             relocation->symbol_name = (char *)aot_stack_sizes_section_name;
         }