Andreas Sandberg merged this change by Chuan Zhu. (
https://gem5-review.googlesource.com/8201 )
Change subject: sim: Add gtoh/htog helpers that take an explicit endianness
......................................................................
sim: Add gtoh/htog helpers that take an explicit endianness
Add helper functions to swap between guest byte order and host byte
order that take a guest endianness as a parameter. These functions are
called htog and htog to be consistent with the helper functions that
extract guest byte order from a compile time constant.
Change-Id: Ie6be7dfd3b7a58ad6bfb57b25be5f85b5f425929
Signed-off-by: Andreas Sandberg <[email protected]>
Reviewed-on: https://gem5-review.googlesource.com/8201
Reviewed-by: Jason Lowe-Power <[email protected]>
---
M src/sim/byteswap.hh
1 file changed, 14 insertions(+), 0 deletions(-)
Approvals:
Jason Lowe-Power: Looks good to me, approved
Andreas Sandberg: Looks good to me, approved
diff --git a/src/sim/byteswap.hh b/src/sim/byteswap.hh
index 2c3517f..a46f8f5 100644
--- a/src/sim/byteswap.hh
+++ b/src/sim/byteswap.hh
@@ -154,6 +154,20 @@
#error Invalid Endianess
#endif
+template <typename T>
+inline T htog(T value, ByteOrder guest_byte_order)
+{
+ return guest_byte_order == BigEndianByteOrder ?
+ htobe(value) : htole(value);
+}
+
+template <typename T>
+inline T gtoh(T value, ByteOrder guest_byte_order)
+{
+ return guest_byte_order == BigEndianByteOrder ?
+ betoh(value) : letoh(value);
+}
+
namespace BigEndianGuest
{
const ByteOrder GuestByteOrder = BigEndianByteOrder;
--
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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-MessageType: merged
Gerrit-Change-Id: Ie6be7dfd3b7a58ad6bfb57b25be5f85b5f425929
Gerrit-Change-Number: 8201
Gerrit-PatchSet: 2
Gerrit-Owner: Andreas Sandberg <[email protected]>
Gerrit-Reviewer: Andreas Sandberg <[email protected]>
Gerrit-Reviewer: Gabe Black <[email protected]>
Gerrit-Reviewer: Jason Lowe-Power <[email protected]>
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