Merge zizzer:/bk/sparcfs

into  zower.eecs.umich.edu:/eecshome/m5/newmem

--HG--
extra : convert_revision : 75f3398e38e18eb1f8248e23708d7a8d8cce0fc5

33 files changed, 176 insertions, 78 deletions

diff --git a/src/arch/alpha/interrupts.hh b/src/arch/alpha/interrupts.hh
index a86fb2d7b..388ccacde 100644
--- a/src/arch/alpha/interrupts.hh
+++ b/src/arch/alpha/interrupts.hh
@@ -138,9 +138,8 @@ namespace AlphaISA
             }
 
             if (ipl && ipl > tc->readMiscReg(IPR_IPLR)) {
-//                assert(!newInfoSet);
                 newIpl = ipl;
-                newSummary = newSummary;
+                newSummary = summary;
                 newInfoSet = true;
                 DPRINTF(Flow, "Interrupt! IPLR=%d ipl=%d summary=%x\n",
                         tc->readMiscReg(IPR_IPLR), ipl, summary);
diff --git a/src/arch/alpha/linux/process.cc b/src/arch/alpha/linux/process.cc
index 56342dbc5..f7d946e2e 100644
--- a/src/arch/alpha/linux/process.cc
+++ b/src/arch/alpha/linux/process.cc
@@ -576,6 +576,7 @@ AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp,
+                                     const std::string &cwd,
                                      uint64_t _uid,
                                      uint64_t _euid,
                                      uint64_t _gid,
@@ -583,7 +584,7 @@ AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
                                      uint64_t _pid,
                                      uint64_t _ppid)
     : AlphaLiveProcess(name, objFile, system, stdin_fd, stdout_fd,
-            stderr_fd, argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid),
+           stderr_fd, argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
     //init_regs->intRegFile[0] = 0;
diff --git a/src/arch/alpha/linux/process.hh b/src/arch/alpha/linux/process.hh
index b23904844..2076f6339 100644
--- a/src/arch/alpha/linux/process.hh
+++ b/src/arch/alpha/linux/process.hh
@@ -46,6 +46,7 @@ class AlphaLinuxProcess : public AlphaLiveProcess
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp,
+                      const std::string &cwd,
                       uint64_t _uid, uint64_t _euid,
                       uint64_t _gid, uint64_t _egid,
                       uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/alpha/process.cc b/src/arch/alpha/process.cc
index 9e360e80f..85619e493 100644
--- a/src/arch/alpha/process.cc
+++ b/src/arch/alpha/process.cc
@@ -43,10 +43,11 @@ using namespace std;
 AlphaLiveProcess::AlphaLiveProcess(const std::string &nm, ObjectFile *objFile,
         System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
         std::vector<std::string> &argv, std::vector<std::string> &envp,
+        const std::string &cwd,
         uint64_t _uid, uint64_t _euid, uint64_t _gid, uint64_t _egid,
         uint64_t _pid, uint64_t _ppid)
     : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
-        argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid)
+        argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid)
 {
     brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
     brk_point = roundUp(brk_point, VMPageSize);
diff --git a/src/arch/alpha/process.hh b/src/arch/alpha/process.hh
index c4aeb1885..8eede502a 100644
--- a/src/arch/alpha/process.hh
+++ b/src/arch/alpha/process.hh
@@ -47,6 +47,7 @@ class AlphaLiveProcess : public LiveProcess
                 System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
                 std::vector<std::string> &envp,
+                const std::string &cwd,
                 uint64_t _uid, uint64_t _euid,
                 uint64_t _gid, uint64_t _egid,
                 uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/alpha/tru64/process.cc b/src/arch/alpha/tru64/process.cc
index 55b8ebf8b..a1f02b16c 100644
--- a/src/arch/alpha/tru64/process.cc
+++ b/src/arch/alpha/tru64/process.cc
@@ -581,11 +581,12 @@ AlphaTru64Process::AlphaTru64Process(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp,
+                                     const std::string &cwd,
                                      uint64_t _uid, uint64_t _euid,
                                      uint64_t _gid, uint64_t _egid,
                                      uint64_t _pid, uint64_t _ppid)
     : AlphaLiveProcess(name, objFile, system, stdin_fd, stdout_fd,
-            stderr_fd, argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid),
+            stderr_fd, argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid),
       Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc)),
       Num_Mach_Syscall_Descs(sizeof(machSyscallDescs) / sizeof(SyscallDesc))
 {
diff --git a/src/arch/alpha/tru64/process.hh b/src/arch/alpha/tru64/process.hh
index 23429dad3..f5643c0b9 100644
--- a/src/arch/alpha/tru64/process.hh
+++ b/src/arch/alpha/tru64/process.hh
@@ -45,6 +45,7 @@ class AlphaTru64Process : public AlphaLiveProcess
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp,
+                      const std::string &cwd,
                       uint64_t _uid, uint64_t _euid,
                       uint64_t _gid, uint64_t _egid,
                       uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/mips/linux/process.cc b/src/arch/mips/linux/process.cc
index d182cfa30..a847608d8 100644
--- a/src/arch/mips/linux/process.cc
+++ b/src/arch/mips/linux/process.cc
@@ -411,6 +411,7 @@ MipsLinuxProcess::MipsLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp,
+                                     const std::string &cwd,
                                      uint64_t _uid,
                                      uint64_t _euid,
                                      uint64_t _gid,
@@ -418,7 +419,7 @@ MipsLinuxProcess::MipsLinuxProcess(const std::string &name,
                                      uint64_t _pid,
                                      uint64_t _ppid)
     : MipsLiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd,
-                      argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid),
+                      argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 { }
 
diff --git a/src/arch/mips/linux/process.hh b/src/arch/mips/linux/process.hh
index 06f86379c..398e1cfc2 100644
--- a/src/arch/mips/linux/process.hh
+++ b/src/arch/mips/linux/process.hh
@@ -43,6 +43,7 @@ class MipsLinuxProcess : public MipsLiveProcess
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp,
+                      const std::string &cwd,
                       uint64_t _uid, uint64_t _euid,
                       uint64_t _gid, uint64_t _egid,
                       uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/mips/process.cc b/src/arch/mips/process.cc
index 4bc91ca24..d1e6e27bf 100644
--- a/src/arch/mips/process.cc
+++ b/src/arch/mips/process.cc
@@ -44,10 +44,11 @@ using namespace MipsISA;
 MipsLiveProcess::MipsLiveProcess(const std::string &nm, ObjectFile *objFile,
         System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
         std::vector<std::string> &argv, std::vector<std::string> &envp,
+        const std::string &cwd,
         uint64_t _uid, uint64_t _euid, uint64_t _gid, uint64_t _egid,
         uint64_t _pid, uint64_t _ppid)
     : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
-        argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid)
+        argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid)
 {
     // Set up stack. On MIPS, stack starts at the top of kuseg
     // user address space. MIPS stack grows down from here
diff --git a/src/arch/mips/process.hh b/src/arch/mips/process.hh
index fb004375d..af85e8ee9 100644
--- a/src/arch/mips/process.hh
+++ b/src/arch/mips/process.hh
@@ -48,6 +48,7 @@ class MipsLiveProcess : public LiveProcess
                 System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
                 std::vector<std::string> &envp,
+                const std::string &cwd,
                 uint64_t _uid, uint64_t _euid,
                 uint64_t _gid, uint64_t _egid,
                 uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/sparc/linux/process.cc b/src/arch/sparc/linux/process.cc
index 44c893f2b..565975fe0 100644
--- a/src/arch/sparc/linux/process.cc
+++ b/src/arch/sparc/linux/process.cc
@@ -391,11 +391,12 @@ SparcLinuxProcess::SparcLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp,
+                                     const std::string &cwd,
                                      uint64_t _uid, uint64_t _euid,
                                      uint64_t _gid, uint64_t _egid,
                                      uint64_t _pid, uint64_t _ppid)
     : SparcLiveProcess(name, objFile, system,
-            stdin_fd, stdout_fd, stderr_fd, argv, envp,
+            stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd,
             _uid, _euid, _gid, _egid, _pid, _ppid),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
diff --git a/src/arch/sparc/linux/process.hh b/src/arch/sparc/linux/process.hh
index c758d5433..e212de973 100644
--- a/src/arch/sparc/linux/process.hh
+++ b/src/arch/sparc/linux/process.hh
@@ -49,6 +49,7 @@ class SparcLinuxProcess : public SparcLiveProcess
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp,
+                      const std::string &cwd,
                       uint64_t _uid, uint64_t _euid,
                       uint64_t _gid, uint64_t _egid,
                       uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index 11a799ccb..3efe4fc08 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -47,10 +47,11 @@ using namespace SparcISA;
 SparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
         System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
         std::vector<std::string> &argv, std::vector<std::string> &envp,
+        const std::string &cwd,
         uint64_t _uid, uint64_t _euid, uint64_t _gid, uint64_t _egid,
         uint64_t _pid, uint64_t _ppid)
     : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
-        argv, envp, _uid, _euid, _gid, _egid, _pid, _ppid)
+        argv, envp, cwd, _uid, _euid, _gid, _egid, _pid, _ppid)
 {
 
     // XXX all the below need to be updated for SPARC - Ali
diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh
index 2320810c7..1cf7ec224 100644
--- a/src/arch/sparc/process.hh
+++ b/src/arch/sparc/process.hh
@@ -64,6 +64,7 @@ class SparcLiveProcess : public LiveProcess
                 System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
                 std::vector<std::string> &envp,
+                const std::string &cwd,
                 uint64_t _uid, uint64_t _euid,
                 uint64_t _gid, uint64_t _egid,
                 uint64_t _pid, uint64_t _ppid);
diff --git a/src/arch/sparc/solaris/process.cc b/src/arch/sparc/solaris/process.cc
index ff466c8e6..f9876bf00 100644
--- a/src/arch/sparc/solaris/process.cc
+++ b/src/arch/sparc/solaris/process.cc
@@ -329,6 +329,7 @@ SparcSolarisProcess::SparcSolarisProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp,
+                                     const std::string &cwd,
                                      uint64_t _uid,
                                      uint64_t _euid,
                                      uint64_t _gid,
@@ -336,7 +337,7 @@ SparcSolarisProcess::SparcSolarisProcess(const std::string &name,
                                      uint64_t _pid,
                                      uint64_t _ppid)
     : SparcLiveProcess(name, objFile, system,
-            stdin_fd, stdout_fd, stderr_fd, argv, envp,
+            stdin_fd, stdout_fd, stderr_fd, argv, envp, cwd,
             _uid, _euid, _gid, _egid, _pid, _ppid),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
diff --git a/src/arch/sparc/solaris/process.hh b/src/arch/sparc/solaris/process.hh
index 2cf329211..f65a60656 100644
--- a/src/arch/sparc/solaris/process.hh
+++ b/src/arch/sparc/solaris/process.hh
@@ -48,6 +48,7 @@ class SparcSolarisProcess : public SparcLiveProcess
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp,
+                      const std::string &cwd,
                       uint64_t _uid, uint64_t _euid,
                       uint64_t _gid, uint64_t _egid,
                       uint64_t _pid, uint64_t _ppid);
diff --git a/src/base/misc.hh b/src/base/misc.hh
index 87faf20e6..1c5720ce1 100644
--- a/src/base/misc.hh
+++ b/src/base/misc.hh
@@ -76,6 +76,19 @@ void __warn(const std::string&, cp::ArgList &, const char*, const char*, int);
 #define warn(args...) \
     __warn__(args, cp::ArgListNull())
 
+// Only print the warning message the first time it is seen.  This
+// doesn't check the warning string itself, it just only lets one
+// warning come from the statement. So, even if the arguments change
+// and that would have resulted in a different warning message,
+// subsequent messages would still be supressed.
+#define warn_once(args...) do {                     \
+        static bool once = false;                   \
+        if (!once) {                                \
+            __warn__(args, cp::ArgListNull());      \
+            once = true;                            \
+        }                                           \
+    } while (0)
+
 //
 // assert() that prints out the current cycle
 //
diff --git a/src/cpu/o3/alpha/cpu_impl.hh b/src/cpu/o3/alpha/cpu_impl.hh
index b2ef78360..98fd0699a 100644
--- a/src/cpu/o3/alpha/cpu_impl.hh
+++ b/src/cpu/o3/alpha/cpu_impl.hh
@@ -116,24 +116,6 @@ AlphaO3CPU<Impl>::AlphaO3CPU(Params *params)
 #if FULL_SYSTEM
         // Setup quiesce event.
         this->thread[i]->quiesceEvent = new EndQuiesceEvent(tc);
-
-        Port *mem_port;
-        FunctionalPort *phys_port;
-        VirtualPort *virt_port;
-        phys_port = new FunctionalPort(csprintf("%s-%d-funcport",
-                                                name(), i));
-        mem_port = this->system->physmem->getPort("functional");
-        mem_port->setPeer(phys_port);
-        phys_port->setPeer(mem_port);
-
-        virt_port = new VirtualPort(csprintf("%s-%d-vport",
-                                             name(), i));
-        mem_port = this->system->physmem->getPort("functional");
-        mem_port->setPeer(virt_port);
-        virt_port->setPeer(mem_port);
-
-        this->thread[i]->setPhysPort(phys_port);
-        this->thread[i]->setVirtPort(virt_port);
 #endif
         // Give the thread the TC.
         this->thread[i]->tc = tc;
diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index 580816372..3dc353a9f 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -497,6 +497,8 @@ FullO3CPU<Impl>::init()
         }
 
 #if FULL_SYSTEM
+        src_tc->init();
+
         TheISA::initCPU(src_tc, src_tc->readCpuId());
 #endif
     }
diff --git a/src/cpu/o3/thread_context.hh b/src/cpu/o3/thread_context.hh
index daee2fc7d..031f36480 100755
--- a/src/cpu/o3/thread_context.hh
+++ b/src/cpu/o3/thread_context.hh
@@ -91,6 +91,8 @@ class O3ThreadContext : public ThreadContext
     virtual VirtualPort *getVirtPort(ThreadContext *src_tc = NULL);
 
     void delVirtPort(VirtualPort *vp);
+
+    virtual void init() { thread->init(); }
 #else
     virtual TranslatingPort *getMemPort() { return thread->getMemPort(); }
 
diff --git a/src/cpu/o3/thread_context_impl.hh b/src/cpu/o3/thread_context_impl.hh
index 8d623f5b8..0180756e3 100755
--- a/src/cpu/o3/thread_context_impl.hh
+++ b/src/cpu/o3/thread_context_impl.hh
@@ -41,12 +41,9 @@ O3ThreadContext<Impl>::getVirtPort(ThreadContext *src_tc)
         return thread->getVirtPort();
 
     VirtualPort *vp;
-    Port *mem_port;
 
     vp = new VirtualPort("tc-vport", src_tc);
-    mem_port = cpu->system->physmem->getPort("functional");
-    mem_port->setPeer(vp);
-    vp->setPeer(mem_port);
+    thread->connectToMemFunc(vp);
     return vp;
 }
 
diff --git a/src/cpu/simple/atomic.cc b/src/cpu/simple/atomic.cc
index 133b5500b..cd335e36d 100644
--- a/src/cpu/simple/atomic.cc
+++ b/src/cpu/simple/atomic.cc
@@ -77,6 +77,9 @@ AtomicSimpleCPU::init()
     for (int i = 0; i < threadContexts.size(); ++i) {
         ThreadContext *tc = threadContexts[i];
 
+        // initialize the mem pointers
+        tc->init();
+
         // initialize CPU, including PC
         TheISA::initCPU(tc, tc->readCpuId());
     }
diff --git a/src/cpu/simple/timing.cc b/src/cpu/simple/timing.cc
index 3648f7613..aa23a00e8 100644
--- a/src/cpu/simple/timing.cc
+++ b/src/cpu/simple/timing.cc
@@ -59,6 +59,9 @@ TimingSimpleCPU::init()
     for (int i = 0; i < threadContexts.size(); ++i) {
         ThreadContext *tc = threadContexts[i];
 
+        // initialize the mem pointers
+        tc->init();
+
         // initialize CPU, including PC
         TheISA::initCPU(tc, tc->readCpuId());
     }
diff --git a/src/cpu/simple_thread.cc b/src/cpu/simple_thread.cc
index 1edcbf352..13d0e2e29 100644
--- a/src/cpu/simple_thread.cc
+++ b/src/cpu/simple_thread.cc
@@ -91,18 +91,6 @@ SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num, System *_sys,
     } else {
         kernelStats = NULL;
     }
-    Port *mem_port;
-    physPort = new FunctionalPort(csprintf("%s-%d-funcport",
-                                           cpu->name(), tid));
-    mem_port = system->physmem->getPort("functional");
-    mem_port->setPeer(physPort);
-    physPort->setPeer(mem_port);
-
-    virtPort = new VirtualPort(csprintf("%s-%d-vport",
-                                        cpu->name(), tid));
-    mem_port = system->physmem->getPort("functional");
-    mem_port->setPeer(virtPort);
-    virtPort->setPeer(mem_port);
 }
 #else
 SimpleThread::SimpleThread(BaseCPU *_cpu, int _thread_num,
@@ -309,10 +297,7 @@ SimpleThread::getVirtPort(ThreadContext *src_tc)
         return virtPort;
 
     VirtualPort *vp = new VirtualPort("tc-vport", src_tc);
-    Port *mem_port = getMemFuncPort();
-
-    mem_port->setPeer(vp);
-    vp->setPeer(mem_port);
+    connectToMemFunc(vp);
     return vp;
 }
 
diff --git a/src/cpu/thread_context.hh b/src/cpu/thread_context.hh
index 1e6a907f8..baeb7a8be 100644
--- a/src/cpu/thread_context.hh
+++ b/src/cpu/thread_context.hh
@@ -133,6 +133,8 @@ class ThreadContext
     virtual VirtualPort *getVirtPort(ThreadContext *tc = NULL) = 0;
 
     virtual void delVirtPort(VirtualPort *vp) = 0;
+
+    virtual void init() = 0;
 #else
     virtual TranslatingPort *getMemPort() = 0;
 
@@ -305,6 +307,8 @@ class ProxyThreadContext : public ThreadContext
     VirtualPort *getVirtPort(ThreadContext *tc = NULL) { return actualTC->getVirtPort(tc); }
 
     void delVirtPort(VirtualPort *vp) { return actualTC->delVirtPort(vp); }
+
+    void init() {actualTC->init(); }
 #else
     TranslatingPort *getMemPort() { return actualTC->getMemPort(); }
 
diff --git a/src/cpu/thread_state.cc b/src/cpu/thread_state.cc
index 8602f8a50..9cac4fd26 100644
--- a/src/cpu/thread_state.cc
+++ b/src/cpu/thread_state.cc
@@ -39,6 +39,7 @@
 #if FULL_SYSTEM
 #include "arch/kernel_stats.hh"
 #include "cpu/quiesce_event.hh"
+#include "mem/vport.hh"
 #endif
 
 #if FULL_SYSTEM
@@ -111,6 +112,28 @@ ThreadState::unserialize(Checkpoint *cp, const std::string &section)
 }
 
 #if FULL_SYSTEM
+void
+ThreadState::init()
+{
+    initPhysPort();
+    initVirtPort();
+}
+
+void
+ThreadState::initPhysPort()
+{
+    physPort = new FunctionalPort(csprintf("%s-%d-funcport",
+                                           baseCpu->name(), tid));
+    connectToMemFunc(physPort);
+}
+
+void
+ThreadState::initVirtPort()
+{
+    virtPort = new VirtualPort(csprintf("%s-%d-vport",
+                                        baseCpu->name(), tid));
+    connectToMemFunc(virtPort);
+}
 
 void
 ThreadState::profileClear()
@@ -138,17 +161,14 @@ ThreadState::getMemPort()
                                         baseCpu->name(), tid),
                                process->pTable, false);
 
-    Port *func_port = getMemFuncPort();
-
-    func_port->setPeer(port);
-    port->setPeer(func_port);
+    connectToMemFunc(port);
 
     return port;
 }
 #endif
 
-Port *
-ThreadState::getMemFuncPort()
+void
+ThreadState::connectToMemFunc(Port *port)
 {
     Port *dcache_port, *func_mem_port;
 
@@ -161,5 +181,6 @@ ThreadState::getMemFuncPort()
     func_mem_port = mem_object->getPort("functional");
     assert(func_mem_port != NULL);
 
-    return func_mem_port;
+    func_mem_port->setPeer(port);
+    port->setPeer(func_mem_port);
 }
diff --git a/src/cpu/thread_state.hh b/src/cpu/thread_state.hh
index 0a0af8b71..1844be8b7 100644
--- a/src/cpu/thread_state.hh
+++ b/src/cpu/thread_state.hh
@@ -91,6 +91,12 @@ struct ThreadState {
     Tick readLastSuspend() { return lastSuspend; }
 
 #if FULL_SYSTEM
+    void init();
+
+    void initPhysPort();
+
+    void initVirtPort();
+
     void dumpFuncProfile();
 
     EndQuiesceEvent *getQuiesceEvent() { return quiesceEvent; }
@@ -141,12 +147,11 @@ struct ThreadState {
     /** Sets the status of this thread. */
     void setStatus(Status new_status) { _status = new_status; }
 
-  protected:
-    /** Gets a functional port from the memory object that's connected
-     * to the CPU. */
-    Port *getMemFuncPort();
-
   public:
+    /** Connects port to the functional port of the memory object
+     * below the CPU. */
+    void connectToMemFunc(Port *port);
+
     /** Number of instructions committed. */
     Counter numInst;
     /** Stat for number instructions committed. */
diff --git a/src/python/m5/objects/Process.py b/src/python/m5/objects/Process.py
index 771ad4101..79268e6f4 100644
--- a/src/python/m5/objects/Process.py
+++ b/src/python/m5/objects/Process.py
@@ -12,6 +12,7 @@ class LiveProcess(Process):
     executable = Param.String('', "executable (overrides cmd[0] if set)")
     cmd = VectorParam.String("command line (executable plus arguments)")
     env = VectorParam.String('', "environment settings")
+    cwd = Param.String('', "current working directory")
     input = Param.String('cin', "filename for stdin")
     uid = Param.Int(100, 'user id')
     euid = Param.Int(100, 'effective user id')
diff --git a/src/sim/process.cc b/src/sim/process.cc
index f3e289d41..b43fa7d00 100644
--- a/src/sim/process.cc
+++ b/src/sim/process.cc
@@ -314,11 +314,12 @@ LiveProcess::LiveProcess(const string &nm, ObjectFile *_objFile,
                          System *_system,
                          int stdin_fd, int stdout_fd, int stderr_fd,
                          vector<string> &_argv, vector<string> &_envp,
+                         const string &_cwd,
                          uint64_t _uid, uint64_t _euid,
                          uint64_t _gid, uint64_t _egid,
                          uint64_t _pid, uint64_t _ppid)
     : Process(nm, _system, stdin_fd, stdout_fd, stderr_fd),
-      objFile(_objFile), argv(_argv), envp(_envp)
+      objFile(_objFile), argv(_argv), envp(_envp), cwd(_cwd)
 {
     __uid = _uid;
     __euid = _euid;
@@ -427,6 +428,7 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
                     int stdout_fd, int stderr_fd, std::string executable,
                     std::vector<std::string> &argv,
                     std::vector<std::string> &envp,
+                    const std::string &cwd,
                     uint64_t _uid, uint64_t _euid,
                     uint64_t _gid, uint64_t _egid,
                     uint64_t _pid, uint64_t _ppid)
@@ -445,14 +447,14 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
       case ObjectFile::Tru64:
         process = new AlphaTru64Process(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp,
+                                        argv, envp, cwd,
                                         _uid, _euid, _gid, _egid, _pid, _ppid);
         break;
 
       case ObjectFile::Linux:
         process = new AlphaLinuxProcess(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp,
+                                        argv, envp, cwd,
                                         _uid, _euid, _gid, _egid, _pid, _ppid);
         break;
 
@@ -466,7 +468,7 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
       case ObjectFile::Linux:
         process = new SparcLinuxProcess(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp,
+                                        argv, envp, cwd,
                                         _uid, _euid, _gid, _egid, _pid, _ppid);
         break;
 
@@ -474,7 +476,7 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
       case ObjectFile::Solaris:
         process = new SparcSolarisProcess(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp,
+                                        argv, envp, cwd,
                                         _uid, _euid, _gid, _egid, _pid, _ppid);
         break;
       default:
@@ -487,7 +489,7 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
       case ObjectFile::Linux:
         process = new MipsLinuxProcess(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp,
+                                        argv, envp, cwd,
                                         _uid, _euid, _gid, _egid, _pid, _ppid);
         break;
 
@@ -512,6 +514,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
     Param<string> input;
     Param<string> output;
     VectorParam<string> env;
+    Param<string> cwd;
     SimObjectParam<System *> system;
     Param<uint64_t> uid;
     Param<uint64_t> euid;
@@ -530,6 +533,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(LiveProcess)
     INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"),
     INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"),
     INIT_PARAM(env, "environment settings"),
+    INIT_PARAM(cwd, "current working directory"),
     INIT_PARAM(system, "system"),
     INIT_PARAM(uid, "user id"),
     INIT_PARAM(euid, "effective user id"),
@@ -566,7 +570,7 @@ CREATE_SIM_OBJECT(LiveProcess)
     return LiveProcess::create(getInstanceName(), system,
                                stdin_fd, stdout_fd, stderr_fd,
                                (string)executable == "" ? cmd[0] : executable,
-                               cmd, env,
+                               cmd, env, cwd,
                                uid, euid, gid, egid, pid, ppid);
 }
 
diff --git a/src/sim/process.hh b/src/sim/process.hh
index 5c37f725e..616c02c00 100644
--- a/src/sim/process.hh
+++ b/src/sim/process.hh
@@ -177,11 +177,13 @@ class LiveProcess : public Process
     ObjectFile *objFile;
     std::vector<std::string> argv;
     std::vector<std::string> envp;
+    std::string cwd;
 
     LiveProcess(const std::string &nm, ObjectFile *objFile,
                 System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
                 std::vector<std::string> &envp,
+                const std::string &cwd,
                 uint64_t _uid, uint64_t _euid,
                 uint64_t _gid, uint64_t _egid,
                 uint64_t _pid, uint64_t _ppid);
@@ -207,6 +209,20 @@ class LiveProcess : public Process
     inline uint64_t pid() {return __pid;}
     inline uint64_t ppid() {return __ppid;}
 
+    std::string
+    fullPath(const std::string &filename)
+    {
+        if (filename[0] == '/' || cwd.empty())
+            return filename;
+
+        std::string full = cwd;
+
+        if (cwd[cwd.size() - 1] != '/')
+            full += '/';
+
+        return full + filename;
+    }
+
     virtual void syscall(int64_t callnum, ThreadContext *tc);
 
     virtual SyscallDesc* getDesc(int callnum) = 0;
@@ -220,6 +236,7 @@ class LiveProcess : public Process
                                std::string executable,
                                std::vector<std::string> &argv,
                                std::vector<std::string> &envp,
+                               const std::string &cwd,
                                uint64_t _uid, uint64_t _euid,
                                uint64_t _gid, uint64_t _egid,
                                uint64_t _pid, uint64_t _ppid);
diff --git a/src/sim/syscall_emul.cc b/src/sim/syscall_emul.cc
index 9028d590b..ab44c0a35 100644
--- a/src/sim/syscall_emul.cc
+++ b/src/sim/syscall_emul.cc
@@ -214,6 +214,9 @@ unlinkFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
         return (TheISA::IntReg)-EFAULT;
 
+    // Adjust path for current working directory
+    path = p->fullPath(path);
+
     int result = unlink(path.c_str());
     return (result == -1) ? -errno : result;
 }
@@ -231,6 +234,10 @@ renameFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
     if (!tc->getMemPort()->tryReadString(new_name, tc->getSyscallArg(1)))
         return -EFAULT;
 
+    // Adjust path for current working directory
+    old_name = p->fullPath(old_name);
+    new_name = p->fullPath(new_name);
+
     int64_t result = rename(old_name.c_str(), new_name.c_str());
     return (result == -1) ? -errno : result;
 }
@@ -245,6 +252,9 @@ truncateFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
 
     off_t length = tc->getSyscallArg(1);
 
+    // Adjust path for current working directory
+    path = p->fullPath(path);
+
     int result = truncate(path.c_str(), length);
     return (result == -1) ? -errno : result;
 }
@@ -277,6 +287,9 @@ chownFunc(SyscallDesc *desc, int num, LiveProcess *p, ThreadContext *tc)
     uint32_t group = tc->getSyscallArg(2);
     gid_t hostGroup = group;
 
+    // Adjust path for current working directory
+    path = p->fullPath(path);
+
     int result = chown(path.c_str(), hostOwner, hostGroup);
     return (result == -1) ? -errno : result;
 }
diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index e79712a19..27356c9f1 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -500,6 +500,9 @@ openFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     hostFlags |= O_BINARY;
 #endif
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     DPRINTF(SyscallVerbose, "opening file %s\n", path.c_str());
 
     // open the file
@@ -526,6 +529,9 @@ chmodFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     // XXX translate mode flags via OS::something???
     hostMode = mode;
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     // do the chmod
     int result = chmod(path.c_str(), hostMode);
     if (result < 0)
@@ -573,6 +579,9 @@ statFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
     return -EFAULT;
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     struct stat hostBuf;
     int result = stat(path.c_str(), &hostBuf);
 
@@ -626,6 +635,9 @@ lstatFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
       return -EFAULT;
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     struct stat hostBuf;
     int result = lstat(path.c_str(), &hostBuf);
 
@@ -648,6 +660,9 @@ lstat64Func(SyscallDesc *desc, int callnum, LiveProcess *process,
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
       return -EFAULT;
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
 #if NO_STAT64
     struct stat hostBuf;
     int result = lstat(path.c_str(), &hostBuf);
@@ -701,6 +716,9 @@ statfsFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     if (!tc->getMemPort()->tryReadString(path, tc->getSyscallArg(0)))
       return -EFAULT;
 
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     struct statfs hostBuf;
     int result = statfs(path.c_str(), &hostBuf);
 
@@ -896,6 +914,10 @@ utimesFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
         hostTimeval[i].tv_sec = gtoh((*tp)[i].tv_sec);
         hostTimeval[i].tv_usec = gtoh((*tp)[i].tv_usec);
     }
+
+    // Adjust path for current working directory
+    path = process->fullPath(path);
+
     int result = utimes(path.c_str(), hostTimeval);
 
     if (result < 0)
@@ -912,17 +934,8 @@ getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     int who = tc->getSyscallArg(0);	// THREAD, SELF, or CHILDREN
     TypedBufferArg<typename OS::rusage> rup(tc->getSyscallArg(1));
 
-    if (who != OS::TGT_RUSAGE_SELF) {
-        // don't really handle THREAD or CHILDREN, but just warn and
-        // plow ahead
-        warn("getrusage() only supports RUSAGE_SELF.  Parameter %d ignored.",
-             who);
-    }
-
-    getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec);
-    rup->ru_utime.tv_sec = htog(rup->ru_utime.tv_sec);
-    rup->ru_utime.tv_usec = htog(rup->ru_utime.tv_usec);
-
+    rup->ru_utime.tv_sec = 0;
+    rup->ru_utime.tv_usec = 0;
     rup->ru_stime.tv_sec = 0;
     rup->ru_stime.tv_usec = 0;
     rup->ru_maxrss = 0;
@@ -940,6 +953,24 @@ getrusageFunc(SyscallDesc *desc, int callnum, LiveProcess *process,
     rup->ru_nvcsw = 0;
     rup->ru_nivcsw = 0;
 
+    switch (who) {
+      case OS::TGT_RUSAGE_SELF:
+        getElapsedTime(rup->ru_utime.tv_sec, rup->ru_utime.tv_usec);
+        rup->ru_utime.tv_sec = htog(rup->ru_utime.tv_sec);
+        rup->ru_utime.tv_usec = htog(rup->ru_utime.tv_usec);
+        break;
+
+      case OS::TGT_RUSAGE_CHILDREN:
+        // do nothing.  We have no child processes, so they take no time.
+        break;
+
+      default:
+        // don't really handle THREAD or CHILDREN, but just warn and
+        // plow ahead
+        warn("getrusage() only supports RUSAGE_SELF.  Parameter %d ignored.",
+             who);
+    }
+
     rup.copyOut(tc->getMemPort());
 
     return 0;