From 659245acc7dcc28e345b8dfa50571102f4f07728 Mon Sep 17 00:00:00 2001
From: sfan5 <sfan5@live.de>
Date: Wed, 8 Apr 2020 20:14:08 +0200
Subject: 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
---
 src/CMakeLists.txt | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'src/CMakeLists.txt')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 6afa5b8fe..d579bb965 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -661,7 +661,7 @@ endif()
 
 # Set some optimizations and tweaks
 
-include(CheckCXXCompilerFlag)
+include(CheckCSourceCompiles)
 
 if(MSVC)
 	# Visual Studio
@@ -695,13 +695,19 @@ else()
 	else()
 		set(RELEASE_WARNING_FLAGS "")
 	endif()
-
 	if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
 		set(WARNING_FLAGS "${WARNING_FLAGS} -Wsign-compare")
 	endif()
+
 	if(APPLE AND USE_LUAJIT)
 		# required per http://luajit.org/install.html
 		SET(CMAKE_EXE_LINKER_FLAGS  "${CMAKE_EXE_LINKER_FLAGS} -pagezero_size 10000 -image_base 100000000")
+	elseif(UNIX AND USE_LUAJIT)
+		check_c_source_compiles("#ifndef __aarch64__\n#error\n#endif\nint main(){}" IS_AARCH64)
+		if(IS_AARCH64)
+			# Move text segment below LuaJIT's 47-bit limit (see issue #9367)
+			SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-Ttext-segment=0x200000000")
+		endif()
 	endif()
 
 	if(MINGW)
-- 
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