[patch] replacement asm/unaligned.h

reiserfsprogs_unaligned.patch (text/plain), 1.31 KB, created by Patrick Guimond on 2006-10-30 16:44:45 UTC

diff -Naur reiserfsprogs-3.6.19.orig/include/asm/unaligned.h reiserfsprogs-3.6.19/include/asm/unaligned.h
--- reiserfsprogs-3.6.19.orig/include/asm/unaligned.h	1969-12-31 19:00:00.000000000 -0500
+++ reiserfsprogs-3.6.19/include/asm/unaligned.h	2006-10-30 19:33:20.000000000 -0500
@@ -0,0 +1,45 @@
+#if defined(__arm__)
+
+/* Unaligned 32 bits read on ARM */
+#ifndef __ARMEB__
+#define get_unaligned(p)   __get_unaligned_le32((__u8*)(p))
+#define put_unaligned(v,p)   __put_unaligned_le32((v),(__u8*)(p))
+#else
+#define get_unaligned(p)   __get_unaligned_be32((__u8*)(p))
+#define put_unaligned(v,p)   __put_unaligned_be32((v),(__u8*)(p))
+#endif
+
+static inline void __put_unaligned_le32(__u32 v, register __u8 *p)
+{
+	*p++ = v;
+	*p++ = v >> 8;
+	*p++ = v >> 16;
+	*p = v >> 24;
+}
+
+static inline void __put_unaligned_be32(__u32 v, register __u8 *p)
+{
+	*p++ = v >> 24;
+	*p++ = v >> 16;
+	*p++ = v >> 8;
+	*p = v;
+}
+
+static inline __u32 __get_unaligned_le32(__u8* p)
+{
+	return p[0] | p[1] << 8 | p[2] << 16 | p[3] << 24;
+}
+
+static inline __u32 __get_unaligned_be32(__u8 *p)
+{
+	return p[0] << 24 | p[1] << 16 | p[2] << 8 | p[3];
+}
+
+#else
+
+/* Generic unaligned read */
+#define get_unaligned(ptr) (*(__u32*)(ptr))
+/* Generic unalgined write */
+#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
+
+#endif