Add in a new translating port that allows syscalls to translate addresses via the page table before accessing the memory port.

Other compile issues cleaned up.

SConscript:
    Changes to compile the new Translating Port.
    Split out memtester and eio support, will rework them back in after first getting a simpleCPU to work
arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_tru64_process.cc:
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    Changes to use the new translating Port.
cpu/exec_context.cc:
cpu/exec_context.hh:
    Create a translating port in each execution context.
sim/process.cc:
    Fix the way we do proxy memory

--HG--
extra : convert_revision : 3d33218fe8b425a5d9ce24757f1112b4aa6001fd

cpu/exec_context.cc

@@ -37,6 +37,7 @@
 #include "base/output.hh"
 #include "cpu/profile.hh"
 #include "kern/kernel_stats.hh"
+#include "mem/translating_port.hh"
 #include "sim/serialize.hh"
 #include "sim/sim_exit.hh"
 #include "sim/system.hh"
@@ -85,6 +86,7 @@ ExecContext::ExecContext(BaseCPU *_cpu, int _thread_num, System *_system,
       asid(_asid),
       func_exe_inst(0), storeCondFailures(0)
 {
+    port = new TranslatingPort(cpu->memPort, process->pTable);
     memset(&regs, 0, sizeof(RegFile));
 }
 #endif

cpu/exec_context.hh

@@ -35,8 +35,8 @@
 #include "sim/host.hh"
 #include "sim/serialize.hh"
 #include "targetarch/byte_swap.hh"
+#include "mem/translating_port.hh"
 
-class Memory;
 class BaseCPU;
 
 #if FULL_SYSTEM
@@ -122,6 +122,9 @@ class ExecContext
     int cpu_id;
 
     System *system;
+
+    /// Port that syscalls can use to access memory (provides translation step).
+    TranslatingPort *port;
 //    Memory *mem;
 
 #if FULL_SYSTEM