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-rw-r--r--src/script/common/c_internal.h9
-rw-r--r--src/script/cpp_api/s_base.cpp4
-rw-r--r--src/script/cpp_api/s_security.cpp7
-rw-r--r--src/script/lua_api/l_base.cpp7
4 files changed, 25 insertions, 2 deletions
diff --git a/src/script/common/c_internal.h b/src/script/common/c_internal.h
index d8cf3fe76..747400769 100644
--- a/src/script/common/c_internal.h
+++ b/src/script/common/c_internal.h
@@ -54,6 +54,15 @@ extern "C" {
#define CUSTOM_RIDX_CURRENT_MOD_NAME (CUSTOM_RIDX_BASE + 2)
#define CUSTOM_RIDX_BACKTRACE (CUSTOM_RIDX_BASE + 3)
+// Determine if CUSTOM_RIDX_SCRIPTAPI will hold a light or full userdata
+#if defined(__aarch64__) && USE_LUAJIT
+/* LuaJIT has a 47-bit limit for lightuserdata on this platform and we cannot
+ * assume that the ScriptApi class was allocated at a fitting address. */
+#define INDIRECT_SCRIPTAPI_RIDX 1
+#else
+#define INDIRECT_SCRIPTAPI_RIDX 0
+#endif
+
// Pushes the error handler onto the stack and returns its index
#define PUSH_ERROR_HANDLER(L) \
(lua_rawgeti((L), LUA_REGISTRYINDEX, CUSTOM_RIDX_BACKTRACE), lua_gettop((L)))
diff --git a/src/script/cpp_api/s_base.cpp b/src/script/cpp_api/s_base.cpp
index ecb1ba39b..f234a15d4 100644
--- a/src/script/cpp_api/s_base.cpp
+++ b/src/script/cpp_api/s_base.cpp
@@ -90,7 +90,11 @@ ScriptApiBase::ScriptApiBase(ScriptingType type):
luaL_openlibs(m_luastack);
// Make the ScriptApiBase* accessible to ModApiBase
+#if INDIRECT_SCRIPTAPI_RIDX
+ *(void **)(lua_newuserdata(m_luastack, sizeof(void *))) = this;
+#else
lua_pushlightuserdata(m_luastack, this);
+#endif
lua_rawseti(m_luastack, LUA_REGISTRYINDEX, CUSTOM_RIDX_SCRIPTAPI);
// Add and save an error handler
diff --git a/src/script/cpp_api/s_security.cpp b/src/script/cpp_api/s_security.cpp
index b5abcfb5d..2afa3a191 100644
--- a/src/script/cpp_api/s_security.cpp
+++ b/src/script/cpp_api/s_security.cpp
@@ -499,7 +499,12 @@ bool ScriptApiSecurity::checkPath(lua_State *L, const char *path,
// Get server from registry
lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_SCRIPTAPI);
- ScriptApiBase *script = (ScriptApiBase *) lua_touserdata(L, -1);
+ ScriptApiBase *script;
+#if INDIRECT_SCRIPTAPI_RIDX
+ script = (ScriptApiBase *) *(void**)(lua_touserdata(L, -1));
+#else
+ script = (ScriptApiBase *) lua_touserdata(L, -1);
+#endif
lua_pop(L, 1);
const IGameDef *gamedef = script->getGameDef();
if (!gamedef)
diff --git a/src/script/lua_api/l_base.cpp b/src/script/lua_api/l_base.cpp
index 8486fc7bc..c980bba39 100644
--- a/src/script/lua_api/l_base.cpp
+++ b/src/script/lua_api/l_base.cpp
@@ -30,7 +30,12 @@ ScriptApiBase *ModApiBase::getScriptApiBase(lua_State *L)
{
// Get server from registry
lua_rawgeti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_SCRIPTAPI);
- ScriptApiBase *sapi_ptr = (ScriptApiBase*) lua_touserdata(L, -1);
+ ScriptApiBase *sapi_ptr;
+#if INDIRECT_SCRIPTAPI_RIDX
+ sapi_ptr = (ScriptApiBase*) *(void**)(lua_touserdata(L, -1));
+#else
+ sapi_ptr = (ScriptApiBase*) lua_touserdata(L, -1);
+#endif
lua_pop(L, 1);
return sapi_ptr;
}