Byte order detection fixes in SDL_endian.h ...
authorRyan C. Gordon <icculus@icculus.org>
Thu, 08 Sep 2005 06:49:20 +0000
changeset 1137 0f9d463bf09c
parent 1136 d16c010d5d98
child 1138 fcfb783a3ca2
Byte order detection fixes in SDL_endian.h ... --ryan. From: Mike Frysinger <vapier@gentoo.org> To: sdl@libsdl.org Date: Thu, 1 Sep 2005 20:25:01 -0400 Subject: [SDL] [patch] add support for arm/thumb and superh to endian find attached a patch to add support for detecting endian on superh and arm/thumb ... also, ive incorporated a patch from Fedora which will gather the correct endian on a linux host from the system endian.h instead of just trying to maintain an ever-growing list of architectures -mike
include/SDL_byteorder.h
--- a/include/SDL_byteorder.h	Thu Sep 08 06:43:51 2005 +0000
+++ b/include/SDL_byteorder.h	Thu Sep 08 06:49:20 2005 +0000
@@ -34,6 +34,16 @@
 #define SDL_LIL_ENDIAN	1234
 #define SDL_BIG_ENDIAN	4321
 
+#ifdef __linux__
+# include <endian.h>
+# if BYTE_ORDER == LITTLE_ENDIAN
+#  define SDL_BYTEORDER SDL_LIL_ENDIAN
+# else
+#  define SDL_BYTEORDER SDL_BIG_ENDIAN
+# endif
+
+#else
+
 /* Pardon the mess, I'm trying to determine the endianness of this host.
    I'm doing it by preprocessor defines rather than some sort of configure
    script so that application code can use this too.  The "right" way would
@@ -42,7 +52,8 @@
 #if (defined(__i386__) || defined(__i386)) || \
      defined(__ia64__) || defined(WIN32) || \
     (defined(__alpha__) || defined(__alpha)) || \
-     defined(__arm__) || \
+    (defined(__arm__) || defined(__thumb__)) || \
+    (defined(__sh__) || defined(__sh64__)) || \
     (defined(__mips__) && defined(__MIPSEL__)) || \
      defined(__SYMBIAN32__) || \
      defined(__x86_64__) || \
@@ -52,4 +63,6 @@
 #define SDL_BYTEORDER	SDL_BIG_ENDIAN
 #endif
 
+#endif /* __linux__ */
+
 #endif /* _SDL_byteorder_h */