support-for-aarch64.patch

From 759949ca9f235b5f7aae56a1584a00498c9ec534 Mon Sep 17 00:00:00 2001
From: zixijian <zixijian@gmail.com>
Date: Thu, 27 Dec 2018 07:43:28 +0800
Subject: [PATCH] =?UTF-8?q?support=20for=20aarch64=20=E5=AE=89=E5=8D=93?=
 =?UTF-8?q?=E6=89=8B=E6=9C=BA?=
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---
 dep/include/g3dlite/G3D/platform.h |  3 +++
 dep/src/g3dlite/System.cpp         | 16 ++++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/dep/include/g3dlite/G3D/platform.h b/dep/include/g3dlite/G3D/platform.h
index 864cdea11..9d6a1bb8a 100644
--- a/dep/include/g3dlite/G3D/platform.h
+++ b/dep/include/g3dlite/G3D/platform.h
@@ -294,6 +294,9 @@ int WINAPI WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw) {\
 #       ifndef __stdcall
 #           define __stdcall
 #       endif
+#   elif defined(__aarch64__)
+        // CDECL does not apply to arm.
+#       define __cdecl
 #   endif // calling conventions
 
 /** @def G3D_CHECK_PRINTF_METHOD_ARGS()
diff --git a/dep/src/g3dlite/System.cpp b/dep/src/g3dlite/System.cpp
index 1e4905902..12306acf4 100644
--- a/dep/src/g3dlite/System.cpp
+++ b/dep/src/g3dlite/System.cpp
@@ -525,8 +525,11 @@ static bool checkForCPUID() {
     // all known supported architectures have cpuid
     // add cases for incompatible architectures if they are added
     // e.g., if we ever support __powerpc__ being defined again
-
-    return true;
+#if defined(__aarch64__)
+    	return false;
+#else
+	return true;
+#endif
 }
 
 
@@ -1731,6 +1734,15 @@ void System::cpuid(CPUIDFunction func, uint32& eax, uint32& ebx, uint32& ecx, ui
     edx = 0;
 }
 
+#elif defined(G3D_LINUX) && defined(__aarch64__)
+// non-x86 CPU; no CPUID, at least in userspace
+void System::cpuid(CPUIDFunction func, uint32& eax, uint32& ebx, uint32& ecx, uint32& edx) {
+	eax = 0;
+	ebx = 0;
+	ecx = 0;
+	edx = 0;
+}
+		
 #else
 
 // See http://sam.zoy.org/blog/2007-04-13-shlib-with-non-pic-code-have-inline-assembly-and-pic-mix-well
-- 
2.11.0