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authorsfan5 <sfan5@live.de>2020-04-08 20:14:08 +0200
committerGitHub <noreply@github.com>2020-04-08 20:14:08 +0200
commit659245acc7dcc28e345b8dfa50571102f4f07728 (patch)
treea0bcb88e12627c01e1858c9dc52ecff0326d7675 /src/script/common/c_internal.h
parentde73f989eb1397b1103236031fd91309b294583c (diff)
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Work around LuaJIT issues on aarch64 (#9614)
- Move the text segment below the 47-bit limit, needed for script_exception_wrapper which must be lightuserdata - Replace CUSTOM_RIDX_SCRIPTAPI with full userdata
Diffstat (limited to 'src/script/common/c_internal.h')
-rw-r--r--src/script/common/c_internal.h9
1 files changed, 9 insertions, 0 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)))