arch: Make endianness a property of the OS class syscalls can consume.

That way the syscall implementations won't have to find the right
endianness to use on their own, typically by referring to TheISA.

Change-Id: I186b2f419d5dbee72cc9b5abce7356f3143f0c83
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/22363
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Gabe Black <gabeblack@google.com>
Tested-by: kokoro <noreply+kokoro@google.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/src/arch/riscv/linux/linux.hh b/src/arch/riscv/linux/linux.hh
index 441550a50..c3adaeeef 100644
--- a/src/arch/riscv/linux/linux.hh
+++ b/src/arch/riscv/linux/linux.hh
@@ -34,7 +34,13 @@
 #include "arch/riscv/utility.hh"
 #include "kern/linux/linux.hh"
 
-class RiscvLinux64 : public Linux
+class RiscvLinux : public Linux
+{
+  public:
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+};
+
+class RiscvLinux64 : public RiscvLinux
 {
   public:
     static const int TGT_SIGHUP         =  1;
@@ -203,7 +209,7 @@ class RiscvLinux64 : public Linux
     }
 };
 
-class RiscvLinux32 : public Linux
+class RiscvLinux32 : public RiscvLinux
 {
   public:
     static const int TGT_SIGHUP         =  1;