修复 Godot 原生插件的 MSVC 编译兼容性

将 ABI 存储改为 C11 显式 16 字节对齐并保留 128 字节容量补充 Windows 编译环境要求与 MSVC 对齐问题排障说明
2026-09-20 19:39:12 +08:00
parent cde34428f9
commit a2acfa9a6f
3 changed files with 10 additions and 2 deletions
@@ -9,9 +9,10 @@
 #include "gdextension_interface.h"
 #include "embedded_bridge.h"

-/* Windows x64 ABI storage is deliberately oversized and naturally aligned.
+/* Windows x64 ABI storage is deliberately oversized and 16-byte aligned.
+ * Explicit C11 alignment also works with MSVC C, which lacks max_align_t.
 * Objects are constructed/destructed solely through the official interface. */
-typedef union { max_align_t alignment; unsigned char bytes[128]; } Storage;
+typedef struct { _Alignas(16) unsigned char bytes[128]; } Storage;
 static GDExtensionInterfacePrintWarning api_warning;
 static GDExtensionInterfaceVariantCall api_call;
 static GDExtensionInterfaceVariantDestroy api_destroy;