From: Simon Glass <sjg@chromium.org>
Date: Fri, 23 Sep 2011 06:22:06 +0000 (+0000)
Subject: sandbox: Add compiler defines to support a 64-bit x86_64 platform
X-Git-Tag: v2011.12-rc1~512^2~19
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=a7551a3f790eca96be14ef3276326cdd63b5d2f4;p=u-boot

sandbox: Add compiler defines to support a 64-bit x86_64 platform

This sets __WORDSIZE to 8 correctly on 64-bit machines.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

diff --git a/include/compiler.h b/include/compiler.h
index 4e047c7fd2..54999a7e82 100644
--- a/include/compiler.h
+++ b/include/compiler.h
@@ -111,11 +111,25 @@ typedef unsigned int uint;
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
+#if __SIZEOF_LONG__ == 8
+# define __WORDSIZE	64
+#elif __SIZEOF_LONG__ == 4
+# define __WORDSIZE	32
+#else
+/*
+ * Assume 32-bit for now - only newer toolchains support this feature and
+ * this is only required for sandbox support at present.
+ */
+#define __WORDSIZE	32
+#endif
+
 /* Types for `void *' pointers. */
 #if __WORDSIZE == 64
 typedef unsigned long int       uintptr_t;
-#else
+#elif __WORDSIZE == 32
 typedef unsigned int            uintptr_t;
+#else
+#error "__WORDSIZE has unexpected value"
 #endif
 
 #endif