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>

diff --git a/src/arch/alpha/linux/linux.hh b/src/arch/alpha/linux/linux.hh
index 3fd65679d47c0991548026c0e7b657e8c385668e..01d3e282f6a4f84b04a8b9ca03203d787669aa60 100644 (file)
--- a/src/arch/alpha/linux/linux.hh
+++ b/src/arch/alpha/linux/linux.hh
@@ -42,6 +42,8 @@ class AlphaLinux : public Linux
 {
   public:
 
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+
     static const int TGT_SIGHUP         = 0x000001;
     static const int TGT_SIGINT         = 0x000002;
     static const int TGT_SIGQUIT        = 0x000003;

diff --git a/src/arch/arm/freebsd/freebsd.hh b/src/arch/arm/freebsd/freebsd.hh
index e2c5e493c323c6579a2b956d89a62773b3a9b796..b1360473e4d7e9661cfeb4d1587c2c4df5a2d93e 100644 (file)
--- a/src/arch/arm/freebsd/freebsd.hh
+++ b/src/arch/arm/freebsd/freebsd.hh
@@ -35,10 +35,15 @@
 
 #include "kern/freebsd/freebsd.hh"
 
-class ArmFreebsd32 : public FreeBSD
+class ArmFreebsd : public FreeBSD
 {
   public:
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+};
 
+class ArmFreebsd32 : public ArmFreebsd
+{
+  public:
     /// This table maps the target open() flags to the corresponding
     /// host open() flags.
     static SyscallFlagTransTable openFlagTable[];
@@ -192,7 +197,7 @@ class ArmFreebsd32 : public FreeBSD
     };
 };
 
-class ArmFreebsd64 : public FreeBSD
+class ArmFreebsd64 : public ArmFreebsd
 {
   public:
 

diff --git a/src/arch/arm/linux/linux.hh b/src/arch/arm/linux/linux.hh
index cff1e47fdc3d0c7cccca82d8e72f80072f2d2d89..1ae88df4abfdf9a36e6487e32e7a78b703f07219 100644 (file)
--- a/src/arch/arm/linux/linux.hh
+++ b/src/arch/arm/linux/linux.hh
@@ -51,6 +51,8 @@
 class ArmLinux : public Linux
 {
   public:
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+
     static void
     archClone(uint64_t flags,
               Process *pp, Process *cp,

diff --git a/src/arch/mips/linux/linux.hh b/src/arch/mips/linux/linux.hh
index 38e6abcd1000598069e8aeb9661594a9c77145e5..84ab55363e0c14aa4f86323e2b774bd2ddee3ce9 100644 (file)
--- a/src/arch/mips/linux/linux.hh
+++ b/src/arch/mips/linux/linux.hh
@@ -37,6 +37,8 @@ class MipsLinux : public Linux
 {
   public:
 
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+
     static const int TGT_SIGHUP         = 0x000001;
     static const int TGT_SIGINT         = 0x000002;
     static const int TGT_SIGQUIT        = 0x000003;

diff --git a/src/arch/power/linux/linux.hh b/src/arch/power/linux/linux.hh
index de149a1a655207a41f98f0e3028ae8353ff3d4ba..a57c2ab978c737585ae8bf7e3b7f6dc62d38e903 100644 (file)
--- a/src/arch/power/linux/linux.hh
+++ b/src/arch/power/linux/linux.hh
@@ -42,6 +42,8 @@ class PowerLinux : public Linux
 {
   public:
 
+    static const ByteOrder byteOrder = BigEndianByteOrder;
+
     typedef int32_t time_t;
 
     typedef struct {

diff --git a/src/arch/riscv/linux/linux.hh b/src/arch/riscv/linux/linux.hh
index 441550a506656ec06c44480b6a601c388fd9d1b7..c3adaeeef9f3bb6e8dace7201ced16aa9ca622c8 100644 (file)
--- 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;

diff --git a/src/arch/sparc/linux/linux.hh b/src/arch/sparc/linux/linux.hh
index 1de949d10047f6d877575869efd9bc9d14f9efa0..1dba4fa1f55eeb15d6c80722d378dfe68e0fb8c1 100644 (file)
--- a/src/arch/sparc/linux/linux.hh
+++ b/src/arch/sparc/linux/linux.hh
@@ -38,6 +38,8 @@ class SparcLinux : public Linux
 {
   public:
 
+    static const ByteOrder byteOrder = BigEndianByteOrder;
+
     typedef struct {
         uint32_t st_dev;
         char __pad1[4];

diff --git a/src/arch/sparc/solaris/solaris.hh b/src/arch/sparc/solaris/solaris.hh
index 1e814bc53a9b9922016de49f8287fa045b2edfef..459cedb8d59313234b3cace65fb6680f98607ed5 100644 (file)
--- a/src/arch/sparc/solaris/solaris.hh
+++ b/src/arch/sparc/solaris/solaris.hh
@@ -37,6 +37,8 @@ class SparcSolaris : public Solaris
 {
   public:
 
+    static const ByteOrder byteOrder = BigEndianByteOrder;
+
     static SyscallFlagTransTable openFlagTable[];
 
     static const int TGT_O_RDONLY       = 0x00000000;   //!< O_RDONLY

diff --git a/src/arch/x86/linux/linux.hh b/src/arch/x86/linux/linux.hh
index 91498043c6180f316b951cbace7e1c30464acbe5..2192e50640ccdda61c7afdb497b6721b112300ec 100644 (file)
--- a/src/arch/x86/linux/linux.hh
+++ b/src/arch/x86/linux/linux.hh
@@ -46,6 +46,8 @@
 class X86Linux : public Linux
 {
   public:
+    static const ByteOrder byteOrder = LittleEndianByteOrder;
+
     static void
     archClone(uint64_t flags,
                           Process *pp, Process *cp,