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authorVineet Gupta <vgupta@synopsys.com>2013-12-13 14:49:25 +0530
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2013-12-20 14:38:23 +0100
commit917b9eebbc6dd580e2fa5a4e2b18ea609655b19e (patch)
treec1b6c5c73db18a0daaca8327d28a0d5babd0f5cc /libc/sysdeps/linux/arc/bits/byteswap.h
parent1ce639990b6340a8b9f18d076c427fcf5a93695e (diff)
ARC port to uClibc
For this port, I would like to give due credit to: - Folks from Codito technologies (Sameer, Amit, Kanika, Ramana,...) who did the very first port - ARC UK from 2007-2009 (Joern, Irfan, Khurram, Phil... - Late Brendan Kehoe (may he RIP) Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'libc/sysdeps/linux/arc/bits/byteswap.h')
-rw-r--r--libc/sysdeps/linux/arc/bits/byteswap.h23
1 files changed, 23 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/arc/bits/byteswap.h b/libc/sysdeps/linux/arc/bits/byteswap.h
new file mode 100644
index 000000000..75fa3590d
--- /dev/null
+++ b/libc/sysdeps/linux/arc/bits/byteswap.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ *
+ */
+
+#ifndef _ASM_BITS_BYTESWAP_H
+#define _ASM_BITS_BYTESWAP_H 1
+
+#ifdef __Xswape /* gcc defined if -mswape is enabled */
+
+#define __bswap_non_constant_32(x) \
+ __extension__ \
+ ({ unsigned int __bswap_32_v = x; \
+ __asm__ ("swape %0, %0" : "+r" (__bswap_32_v)); \
+ __bswap_32_v; })
+
+#endif /* __Xswape */
+
+#endif /* _ASM_BITS_BYTESWAP_H */
+
+#include <bits/byteswap-common.h>