From a8f82f545abd27657e19a91dd6b9675a576b116b Mon Sep 17 00:00:00 2001
From: Gabe Black <gabeblack@google.com>
Date: Tue, 12 Dec 2017 17:49:35 -0800
Subject: [PATCH] base: Add endianness conversion functions for std::array
 types.

These swap the endianness of each element within the array
individually.

They probably obsolute the Twin(32|64)_t types which I believe were
used for SPARC.

Change-Id: Ic389eb24bdcdc0081068b0c5a37abdf416f6c924
Reviewed-on: https://gem5-review.googlesource.com/6581
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
---
 src/sim/byteswap.hh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/sim/byteswap.hh b/src/sim/byteswap.hh
index 23786bb71..02a053308 100644
--- a/src/sim/byteswap.hh
+++ b/src/sim/byteswap.hh
@@ -139,6 +139,15 @@ inline Twin32_t swap_byte<Twin32_t>(Twin32_t x)
     return x;
 }
 
+template <typename T, size_t N>
+inline std::array<T, N>
+swap_byte(std::array<T, N> a)
+{
+    for (T &v: a)
+        v = swap_byte(v);
+    return a;
+}
+
 //The conversion functions with fixed endianness on both ends don't need to
 //be in a namespace
 template <typename T> inline T betole(T value) {return swap_byte(value);}
-- 
2.30.2