Merge ktlim@zizzer:/bk/m5

into  zamp.eecs.umich.edu:/z/ktlim2/m5-proxyxc

Further changes still need to be made to the XC code.

arch/alpha/ev5.cc:
arch/alpha/freebsd/system.cc:
arch/alpha/linux/system.cc:
base/remote_gdb.cc:
cpu/cpu_exec_context.cc:
cpu/cpu_exec_context.hh:
cpu/simple/cpu.cc:
cpu/simple/cpu.hh:
kern/kernel_stats.cc:
sim/pseudo_inst.cc:
    Hand merge.

--HG--
rename : kern/freebsd/freebsd_system.cc => arch/alpha/freebsd/system.cc
rename : kern/linux/linux_system.cc => arch/alpha/linux/system.cc
rename : kern/linux/linux_threadinfo.hh => arch/alpha/linux/threadinfo.hh
rename : arch/alpha/alpha_linux_process.cc => arch/alpha/linux_process.cc
rename : arch/alpha/alpha_memory.cc => arch/alpha/tlb.cc
rename : arch/alpha/alpha_tru64_process.cc => arch/alpha/tru64_process.cc
rename : cpu/exec_context.cc => cpu/cpu_exec_context.cc
rename : cpu/exec_context.hh => cpu/cpu_exec_context.hh
extra : convert_revision : c1fe71fdd87d1fcd376f4feec69fc3fa29152e3e

5 files changed, 42 insertions, 37 deletions

diff --git a/sim/process.cc b/sim/process.cc
index fddd9a0b9..851192dcd 100644
--- a/sim/process.cc
+++ b/sim/process.cc
@@ -37,6 +37,7 @@
 #include "base/loader/symtab.hh"
 #include "base/statistics.hh"
 #include "config/full_system.hh"
+#include "cpu/cpu_exec_context.hh"
 #include "cpu/exec_context.hh"
 #include "cpu/smt.hh"
 #include "encumbered/cpu/full/thread.hh"
@@ -78,6 +79,8 @@ Process::Process(const string &nm,
     init_regs = new RegFile;
     memset(init_regs, 0, sizeof(RegFile));
 
+    cpuXC = new CPUExecContext(init_regs);
+
     // initialize first 3 fds (stdin, stdout, stderr)
     fd_map[STDIN_FILENO] = stdin_fd;
     fd_map[STDOUT_FILENO] = stdout_fd;
@@ -146,7 +149,7 @@ Process::registerExecContext(ExecContext *xc)
 
     if (myIndex == 0) {
         // copy process's initial regs struct
-        xc->regs = *init_regs;
+        xc->copyArchRegs(cpuXC->getProxy());
     }
 
     // return CPU number to caller and increment available CPU count
@@ -354,7 +357,7 @@ LiveProcess::syscall(ExecContext *xc)
 {
     num_syscalls++;
 
-    int64_t callnum = xc->regs.intRegFile[ReturnValueReg];
+    int64_t callnum = xc->readIntReg(ReturnValueReg);
 
     SyscallDesc *desc = getDesc(callnum);
     if (desc == NULL)
diff --git a/sim/process.hh b/sim/process.hh
index 71b7d02b3..3a48f128c 100644
--- a/sim/process.hh
+++ b/sim/process.hh
@@ -46,6 +46,7 @@
 #include "base/statistics.hh"
 #include "base/trace.hh"
 
+class CPUExecContext;
 class ExecContext;
 class FunctionalMemory;
 class SyscallDesc;
@@ -83,6 +84,7 @@ class Process : public SimObject
     std::list<WaitRec> waitList;
 
     RegFile *init_regs;		// initial register contents
+    CPUExecContext *cpuXC;      // XC to hold the init_regs
 
     Addr text_base;		// text (code) segment base
     unsigned text_size;		// text (code) size in bytes
diff --git a/sim/pseudo_inst.cc b/sim/pseudo_inst.cc
index f4285be8a..85b26ef23 100644
--- a/sim/pseudo_inst.cc
+++ b/sim/pseudo_inst.cc
@@ -64,7 +64,7 @@ namespace AlphaPseudo
     void
     arm(ExecContext *xc)
     {
-        xc->kernelStats->arm();
+        xc->getCpuPtr()->kernelStats->arm();
     }
 
     void
@@ -74,7 +74,7 @@ namespace AlphaPseudo
             return;
 
         xc->suspend();
-        xc->kernelStats->quiesce();
+        xc->getCpuPtr()->kernelStats->quiesce();
     }
 
     void
@@ -116,7 +116,7 @@ namespace AlphaPseudo
     void
     ivlb(ExecContext *xc)
     {
-        xc->kernelStats->ivlb();
+        xc->getCpuPtr()->kernelStats->ivlb();
     }
 
     void
@@ -174,7 +174,7 @@ namespace AlphaPseudo
 
         DPRINTF(Loader, "Loaded symbol: %s @ %#llx\n", symbol, addr);
 
-        xc->system->kernelSymtab->insert(addr,symbol);
+        xc->getSystemPtr()->kernelSymtab->insert(addr,symbol);
     }
 
     void
@@ -207,7 +207,7 @@ namespace AlphaPseudo
     uint64_t
     readfile(ExecContext *xc, Addr vaddr, uint64_t len, uint64_t offset)
     {
-        const string &file = xc->cpu->system->params()->readfile;
+        const string &file = xc->getCpuPtr()->system->params()->readfile;
         if (file.empty()) {
             return ULL(0);
         }
diff --git a/sim/syscall_emul.cc b/sim/syscall_emul.cc
index d22dde3b8..2f6ed128d 100644
--- a/sim/syscall_emul.cc
+++ b/sim/syscall_emul.cc
@@ -47,12 +47,12 @@ void
 SyscallDesc::doSyscall(int callnum, Process *process, ExecContext *xc)
 {
     DPRINTFR(SyscallVerbose, "%s: syscall %s called\n",
-             xc->cpu->name(), name);
+             xc->getCpuPtr()->name(), name);
 
     SyscallReturn retval = (*funcPtr)(this, callnum, process, xc);
 
     DPRINTFR(SyscallVerbose, "%s: syscall %s returns %d\n",
-             xc->cpu->name(), name, retval.value());
+             xc->getCpuPtr()->name(), name, retval.value());
 
     if (!(flags & SyscallDesc::SuppressReturnValue))
         xc->setSyscallReturn(retval);
@@ -130,7 +130,7 @@ readFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
     int bytes_read = read(fd, bufArg.bufferPtr(), nbytes);
 
     if (bytes_read != -1)
-        bufArg.copyOut(xc->mem);
+        bufArg.copyOut(xc->getMemPtr());
 
     return bytes_read;
 }
@@ -142,7 +142,7 @@ writeFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
     int nbytes = xc->getSyscallArg(2);
     BufferArg bufArg(xc->getSyscallArg(1), nbytes);
 
-    bufArg.copyIn(xc->mem);
+    bufArg.copyIn(xc->getMemPtr());
 
     int bytes_written = write(fd, bufArg.bufferPtr(), nbytes);
 
@@ -183,7 +183,7 @@ gethostnameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 
     strncpy((char *)name.bufferPtr(), hostname, name_len);
 
-    name.copyOut(xc->mem);
+    name.copyOut(xc->getMemPtr());
 
     return 0;
 }
@@ -193,7 +193,7 @@ unlinkFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 {
     string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return (TheISA::IntReg)-EFAULT;
 
     int result = unlink(path.c_str());
@@ -205,12 +205,12 @@ renameFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 {
     string old_name;
 
-    if (xc->mem->readString(old_name, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(old_name, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     string new_name;
 
-    if (xc->mem->readString(new_name, xc->getSyscallArg(1)) != NoFault)
+    if (xc->getMemPtr()->readString(new_name, xc->getSyscallArg(1)) != NoFault)
         return -EFAULT;
 
     int64_t result = rename(old_name.c_str(), new_name.c_str());
@@ -222,7 +222,7 @@ truncateFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 {
     string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     off_t length = xc->getSyscallArg(1);
@@ -250,7 +250,7 @@ chownFunc(SyscallDesc *desc, int num, Process *p, ExecContext *xc)
 {
     string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     /* XXX endianess */
diff --git a/sim/syscall_emul.hh b/sim/syscall_emul.hh
index eca9f79e0..cadaa1cd3 100644
--- a/sim/syscall_emul.hh
+++ b/sim/syscall_emul.hh
@@ -321,7 +321,7 @@ openFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     if (path == "/dev/sysdev0") {
@@ -368,7 +368,7 @@ chmodFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     uint32_t mode = xc->getSyscallArg(1);
@@ -421,7 +421,7 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     struct stat hostBuf;
@@ -430,7 +430,7 @@ statFunc(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStatBuf(xc->getMemPtr(), xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -459,7 +459,7 @@ fstat64Func(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStat64Buf(xc->mem, fd, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStat64Buf(xc->getMemPtr(), fd, xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -473,7 +473,7 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     struct stat hostBuf;
@@ -482,7 +482,7 @@ lstatFunc(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStatBuf(xc->getMemPtr(), xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -495,7 +495,7 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
 #if BSD_HOST
@@ -509,7 +509,7 @@ lstat64Func(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStat64Buf(xc->mem, -1, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStat64Buf(xc->getMemPtr(), -1, xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -533,7 +533,7 @@ fstatFunc(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStatBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStatBuf(xc->getMemPtr(), xc->getSyscallArg(1), &hostBuf);
     return 0;
 }
 
@@ -546,7 +546,7 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     struct statfs hostBuf;
@@ -555,7 +555,7 @@ statfsFunc(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStatfsBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStatfsBuf(xc->getMemPtr(), xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -578,7 +578,7 @@ fstatfsFunc(SyscallDesc *desc, int callnum, Process *process,
     if (result < 0)
         return -errno;
 
-    OS::copyOutStatfsBuf(xc->mem, xc->getSyscallArg(1), &hostBuf);
+    OS::copyOutStatfsBuf(xc->getMemPtr(), xc->getSyscallArg(1), &hostBuf);
 
     return 0;
 }
@@ -602,11 +602,11 @@ writevFunc(SyscallDesc *desc, int callnum, Process *process,
     for (int i = 0; i < count; ++i)
     {
         typename OS::tgt_iovec tiov;
-        xc->mem->access(Read, tiov_base + i*sizeof(typename OS::tgt_iovec),
+        xc->getMemPtr()->access(Read, tiov_base + i*sizeof(typename OS::tgt_iovec),
                         &tiov, sizeof(typename OS::tgt_iovec));
         hiov[i].iov_len = gtoh(tiov.iov_len);
         hiov[i].iov_base = new char [hiov[i].iov_len];
-        xc->mem->access(Read, gtoh(tiov.iov_base),
+        xc->getMemPtr()->access(Read, gtoh(tiov.iov_base),
                         hiov[i].iov_base, hiov[i].iov_len);
     }
 
@@ -689,7 +689,7 @@ getrlimitFunc(SyscallDesc *desc, int callnum, Process *process,
             break;
     }
 
-    rlp.copyOut(xc->mem);
+    rlp.copyOut(xc->getMemPtr());
     return 0;
 }
 
@@ -706,7 +706,7 @@ gettimeofdayFunc(SyscallDesc *desc, int callnum, Process *process,
     tp->tv_sec = htog(tp->tv_sec);
     tp->tv_usec = htog(tp->tv_usec);
 
-    tp.copyOut(xc->mem);
+    tp.copyOut(xc->getMemPtr());
 
     return 0;
 }
@@ -720,11 +720,11 @@ utimesFunc(SyscallDesc *desc, int callnum, Process *process,
 {
     std::string path;
 
-    if (xc->mem->readString(path, xc->getSyscallArg(0)) != NoFault)
+    if (xc->getMemPtr()->readString(path, xc->getSyscallArg(0)) != NoFault)
         return -EFAULT;
 
     TypedBufferArg<typename OS::timeval [2]> tp(xc->getSyscallArg(1));
-    tp.copyIn(xc->mem);
+    tp.copyIn(xc->getMemPtr());
 
     struct timeval hostTimeval[2];
     for (int i = 0; i < 2; ++i)
@@ -776,7 +776,7 @@ getrusageFunc(SyscallDesc *desc, int callnum, Process *process,
     rup->ru_nvcsw = 0;
     rup->ru_nivcsw = 0;
 
-    rup.copyOut(xc->mem);
+    rup.copyOut(xc->getMemPtr());
 
     return 0;
 }