add translations for new sections that are mmapped or when the brk

is changed
Add a default machine width parameter
Arch based live processes

arch/alpha/linux/process.cc:
arch/alpha/linux/process.hh:
arch/alpha/process.cc:
arch/alpha/process.hh:
arch/alpha/tru64/process.cc:
arch/alpha/tru64/process.hh:
arch/mips/linux_process.cc:
arch/mips/process.cc:
arch/mips/process.hh:
arch/sparc/linux/process.cc:
arch/sparc/linux/process.hh:
arch/sparc/process.cc:
arch/sparc/process.hh:
configs/test/test.py:
python/m5/objects/Process.py:
sim/process.cc:
sim/process.hh:
    Architecture based live processes
arch/mips/isa_traits.hh:
arch/sparc/isa_traits.hh:
    Add a default machine width parameter
mem/port.hh:
    gcc 4 really wants  a virtual destructor
sim/byteswap.hh:
    remove the comment around long and unsigned long even though uint32_t
    and int32_t are defined. Seems to work with gcc 4 and 3.4.3.
sim/syscall_emul.cc:
sim/syscall_emul.hh:
    add translations for new sections that are mmapped or when the brk
    is changed

--HG--
extra : convert_revision : e2f9f228113c7127c87ef2358209a399c30ed5c6

15 files changed, 408 insertions, 55 deletions

diff --git a/arch/alpha/linux/process.cc b/arch/alpha/linux/process.cc
index 704773fdf..4bc283563 100644
--- a/arch/alpha/linux/process.cc
+++ b/arch/alpha/linux/process.cc
@@ -572,7 +572,7 @@ AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, system, stdin_fd, stdout_fd,
+    : AlphaLiveProcess(name, objFile, system, stdin_fd, stdout_fd,
             stderr_fd, argv, envp),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
diff --git a/arch/alpha/linux/process.hh b/arch/alpha/linux/process.hh
index 2cabc3f76..2e0566665 100644
--- a/arch/alpha/linux/process.hh
+++ b/arch/alpha/linux/process.hh
@@ -29,11 +29,12 @@
 #ifndef __ALPHA_LINUX_PROCESS_HH__
 #define __ALPHA_LINUX_PROCESS_HH__
 
-#include "sim/process.hh"
+#include "arch/alpha/process.hh"
 
+namespace AlphaISA  {
 
 /// A process with emulated Alpha/Linux syscalls.
-class AlphaLinuxProcess : public LiveProcess
+class AlphaLinuxProcess : public AlphaLiveProcess
 {
   public:
     /// Constructor.
@@ -55,5 +56,5 @@ class AlphaLinuxProcess : public LiveProcess
     const int Num_Syscall_Descs;
 };
 
-
+} // namespace AlphaISA
 #endif // __ALPHA_LINUX_PROCESS_HH__
diff --git a/arch/alpha/process.cc b/arch/alpha/process.cc
index 17a54ee80..25ee79692 100644
--- a/arch/alpha/process.cc
+++ b/arch/alpha/process.cc
@@ -26,21 +26,33 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "arch/alpha/constants.hh"
 #include "arch/alpha/process.hh"
 #include "arch/alpha/linux/process.hh"
 #include "arch/alpha/tru64/process.hh"
 #include "base/loader/object_file.hh"
 #include "base/misc.hh"
+#include "cpu/exec_context.hh"
+#include "sim/builder.hh"
+#include "sim/system.hh"
 
-namespace AlphaISA
-{
 
-LiveProcess *
-createProcess(const std::string &nm, ObjectFile * objFile, System *system,
-        int stdin_fd, int stdout_fd, int stderr_fd,
+using namespace AlphaISA;
+using namespace std;
+
+AlphaLiveProcess *
+AlphaLiveProcess::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)
 {
-    LiveProcess * process = NULL;
+    AlphaLiveProcess *process = NULL;
+
+    ObjectFile *objFile = createObjectFile(executable);
+    if (objFile == NULL) {
+        fatal("Can't load object file %s", executable);
+    }
+
+
     if (objFile->getArch() != ObjectFile::Alpha)
         fatal("Object file does not match architecture.");
     switch (objFile->getOpSys()) {
@@ -59,7 +71,97 @@ createProcess(const std::string &nm, ObjectFile * objFile, System *system,
       default:
         fatal("Unknown/unsupported operating system.");
     }
+
+    if (process == NULL)
+        fatal("Unknown error creating process object.");
     return process;
 }
 
-} // namespace AlphaISA
+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)
+    : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
+        argv, envp)
+{
+    brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
+    brk_point = roundUp(brk_point, VMPageSize);
+
+    // Set up stack.  On Alpha, stack goes below text section.  This
+    // code should get moved to some architecture-specific spot.
+    stack_base = objFile->textBase() - (409600+4096);
+
+    // Set up region for mmaps.  Tru64 seems to start just above 0 and
+    // grow up from there.
+    mmap_start = mmap_end = 0x10000;
+
+    // Set pointer for next thread stack.  Reserve 8M for main stack.
+    next_thread_stack_base = stack_base - (8 * 1024 * 1024);
+
+}
+
+void
+AlphaLiveProcess::startup()
+{
+    argsInit(MachineBytes, VMPageSize);
+
+    execContexts[0]->setIntReg(GlobalPointerReg, objFile->globalPointer());
+}
+
+
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(AlphaLiveProcess)
+
+    VectorParam<string> cmd;
+    Param<string> executable;
+    Param<string> input;
+    Param<string> output;
+    VectorParam<string> env;
+    SimObjectParam<System *> system;
+
+END_DECLARE_SIM_OBJECT_PARAMS(AlphaLiveProcess)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(AlphaLiveProcess)
+
+    INIT_PARAM(cmd, "command line (executable plus arguments)"),
+    INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
+    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(system, "system")
+
+END_INIT_SIM_OBJECT_PARAMS(AlphaLiveProcess)
+
+
+CREATE_SIM_OBJECT(AlphaLiveProcess)
+{
+    string in = input;
+    string out = output;
+
+    // initialize file descriptors to default: same as simulator
+    int stdin_fd, stdout_fd, stderr_fd;
+
+    if (in == "stdin" || in == "cin")
+        stdin_fd = STDIN_FILENO;
+    else
+        stdin_fd = Process::openInputFile(input);
+
+    if (out == "stdout" || out == "cout")
+        stdout_fd = STDOUT_FILENO;
+    else if (out == "stderr" || out == "cerr")
+        stdout_fd = STDERR_FILENO;
+    else
+        stdout_fd = Process::openOutputFile(out);
+
+    stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+
+    return AlphaLiveProcess::create(getInstanceName(), system,
+                               stdin_fd, stdout_fd, stderr_fd,
+                               (string)executable == "" ? cmd[0] : executable,
+                               cmd, env);
+}
+
+
+REGISTER_SIM_OBJECT("AlphaLiveProcess", AlphaLiveProcess)
+
diff --git a/arch/alpha/process.hh b/arch/alpha/process.hh
index 6d6585175..d97b36e2d 100644
--- a/arch/alpha/process.hh
+++ b/arch/alpha/process.hh
@@ -31,19 +31,34 @@
 
 #include <string>
 #include <vector>
+#include "sim/process.hh"
 
-class LiveProcess;
 class ObjectFile;
 class System;
 
-namespace AlphaISA
+
+class AlphaLiveProcess : public LiveProcess
 {
+  protected:
+    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);
+
+    void startup();
+
+  public:
+    // this function is used to create the LiveProcess object, since
+    // we can't tell which subclass of LiveProcess to use until we
+    // open and look at the object file.
+    static AlphaLiveProcess *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);
 
-LiveProcess *
-createProcess(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);
+};
 
-} // namespace AlphaISA
 
 #endif // __ALPHA_PROCESS_HH__
diff --git a/arch/alpha/tru64/process.cc b/arch/alpha/tru64/process.cc
index be78cb96e..355d7f3e6 100644
--- a/arch/alpha/tru64/process.cc
+++ b/arch/alpha/tru64/process.cc
@@ -535,7 +535,7 @@ AlphaTru64Process::AlphaTru64Process(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, system, stdin_fd, stdout_fd,
+    : AlphaLiveProcess(name, objFile, system, stdin_fd, stdout_fd,
             stderr_fd, argv, envp),
       Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc)),
       Num_Mach_Syscall_Descs(sizeof(machSyscallDescs) / sizeof(SyscallDesc))
diff --git a/arch/alpha/tru64/process.hh b/arch/alpha/tru64/process.hh
index 84abd54bf..1cde4cac0 100644
--- a/arch/alpha/tru64/process.hh
+++ b/arch/alpha/tru64/process.hh
@@ -29,10 +29,11 @@
 #ifndef __ALPHA_TRU64_PROCESS_HH__
 #define __ALPHA_TRU64_PROCESS_HH__
 
-#include "sim/process.hh"
+#include "arch/alpha/process.hh"
 
+namespace AlphaISA {
 /// A process with emulated Alpha Tru64 syscalls.
-class AlphaTru64Process : public LiveProcess
+class AlphaTru64Process : public AlphaLiveProcess
 {
   public:
     /// Constructor.
@@ -55,5 +56,6 @@ class AlphaTru64Process : public LiveProcess
     virtual SyscallDesc* getDesc(int callnum);
 };
 
+} // namespace AlphaISA
 
 #endif // __ALPHA_TRU64_PROCESS_HH__
diff --git a/arch/mips/isa_traits.hh b/arch/mips/isa_traits.hh
index bd56ce2cc..833d3cc63 100644
--- a/arch/mips/isa_traits.hh
+++ b/arch/mips/isa_traits.hh
@@ -142,6 +142,7 @@ namespace MipsISA
 
     const int BranchPredAddrShiftAmt = 2; // instructions are 4-byte aligned
 
+    const int MachineBytes = 4;
     const int WordBytes = 4;
     const int HalfwordBytes = 2;
     const int ByteBytes = 1;
diff --git a/arch/mips/linux_process.cc b/arch/mips/linux_process.cc
index 318b7934a..93706d8aa 100644
--- a/arch/mips/linux_process.cc
+++ b/arch/mips/linux_process.cc
@@ -571,7 +571,8 @@ MipsLinuxProcess::MipsLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd, argv, envp),
+    : MipsLiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd,
+                      argv, envp),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
     //init_regs->intRegFile[0] = 0;
diff --git a/arch/mips/process.cc b/arch/mips/process.cc
index 8f8a34934..a4ce3f5f1 100644
--- a/arch/mips/process.cc
+++ b/arch/mips/process.cc
@@ -26,27 +26,37 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "arch/mips/isa_traits.hh"
 #include "arch/mips/process.hh"
 #include "arch/mips/linux_process.hh"
 #include "base/loader/object_file.hh"
 #include "base/misc.hh"
+#include "cpu/exec_context.hh"
+#include "sim/builder.hh"
+#include "sim/system.hh"
 
 using namespace std;
+using namespace MipsISA;
 
-namespace MipsISA
-{
 
-LiveProcess *
-createProcess(const string &nm, ObjectFile * objFile, System * system,
-        int stdin_fd, int stdout_fd, int stderr_fd,
-        vector<string> &argv, vector<string> &envp)
+MipsLiveProcess *
+MipsLiveProcess::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)
 {
-    LiveProcess * process = NULL;
+    MipsLiveProcess *process = NULL;
+
+    ObjectFile *objFile = createObjectFile(executable);
+    if (objFile == NULL) {
+        fatal("Can't load object file %s", executable);
+    }
+
+
     if (objFile->getArch() != ObjectFile::MIPS)
         fatal("Object file does not match architecture.");
     switch (objFile->getOpSys()) {
       case ObjectFile::Linux:
-        process = new MipsLinuxProcess(nm, objFile,system,
+        process = new MipsLinuxProcess(nm, objFile, system,
                                         stdin_fd, stdout_fd, stderr_fd,
                                         argv, envp);
         break;
@@ -54,8 +64,98 @@ createProcess(const string &nm, ObjectFile * objFile, System * system,
       default:
         fatal("Unknown/unsupported operating system.");
     }
+
+    if (process == NULL)
+        fatal("Unknown error creating process object.");
     return process;
 }
 
-} // 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)
+    : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
+        argv, envp)
+{
+
+    // XXX all the below need to be updated for SPARC - Ali
+    brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
+    brk_point = roundUp(brk_point, VMPageSize);
+
+    // Set up stack.  On Alpha, stack goes below text section.  This
+    // code should get moved to some architecture-specific spot.
+    stack_base = objFile->textBase() - (409600+4096);
+
+    // Set up region for mmaps.  Tru64 seems to start just above 0 and
+    // grow up from there.
+    mmap_start = mmap_end = 0x10000;
+
+    // Set pointer for next thread stack.  Reserve 8M for main stack.
+    next_thread_stack_base = stack_base - (8 * 1024 * 1024);
+
+}
+
+void
+MipsLiveProcess::startup()
+{
+    argsInit(MachineBytes, VMPageSize);
+}
+
+
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess)
+
+    VectorParam<string> cmd;
+    Param<string> executable;
+    Param<string> input;
+    Param<string> output;
+    VectorParam<string> env;
+    SimObjectParam<System *> system;
+
+END_DECLARE_SIM_OBJECT_PARAMS(MipsLiveProcess)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess)
+
+    INIT_PARAM(cmd, "command line (executable plus arguments)"),
+    INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
+    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(system, "system")
+
+END_INIT_SIM_OBJECT_PARAMS(MipsLiveProcess)
+
+
+CREATE_SIM_OBJECT(MipsLiveProcess)
+{
+    string in = input;
+    string out = output;
+
+    // initialize file descriptors to default: same as simulator
+    int stdin_fd, stdout_fd, stderr_fd;
+
+    if (in == "stdin" || in == "cin")
+        stdin_fd = STDIN_FILENO;
+    else
+        stdin_fd = Process::openInputFile(input);
+
+    if (out == "stdout" || out == "cout")
+        stdout_fd = STDOUT_FILENO;
+    else if (out == "stderr" || out == "cerr")
+        stdout_fd = STDERR_FILENO;
+    else
+        stdout_fd = Process::openOutputFile(out);
+
+    stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+
+    return MipsLiveProcess::create(getInstanceName(), system,
+                               stdin_fd, stdout_fd, stderr_fd,
+                               (string)executable == "" ? cmd[0] : executable,
+                               cmd, env);
+}
+
+
+REGISTER_SIM_OBJECT("MipsLiveProcess", MipsLiveProcess)
+
 
diff --git a/arch/mips/process.hh b/arch/mips/process.hh
index 8f5d74d96..2a13dc955 100644
--- a/arch/mips/process.hh
+++ b/arch/mips/process.hh
@@ -31,19 +31,34 @@
 
 #include <string>
 #include <vector>
+#include "sim/process.hh"
 
 class LiveProcess;
 class ObjectFile;
 class System;
 
-namespace MipsISA
+class MipsLiveProcess : public LiveProcess
 {
+  protected:
+    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);
 
-LiveProcess *
-createProcess(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);
+    void startup();
+
+  public:
+    // this function is used to create the LiveProcess object, since
+    // we can't tell which subclass of LiveProcess to use until we
+    // open and look at the object file.
+    static MipsLiveProcess *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);
+
+};
 
-} // namespace MipsISA
 
 #endif // __MIPS_PROCESS_HH__
diff --git a/arch/sparc/isa_traits.hh b/arch/sparc/isa_traits.hh
index 3e7800910..23e3dad74 100644
--- a/arch/sparc/isa_traits.hh
+++ b/arch/sparc/isa_traits.hh
@@ -132,6 +132,7 @@ namespace SparcISA
 
     const int BranchPredAddrShiftAmt = 2;
 
+    const int MachineBytes = 8;
     const int WordBytes = 4;
     const int HalfwordBytes = 2;
     const int ByteBytes = 1;
diff --git a/arch/sparc/linux/process.cc b/arch/sparc/linux/process.cc
index 30c786ad3..cb056eadc 100644
--- a/arch/sparc/linux/process.cc
+++ b/arch/sparc/linux/process.cc
@@ -352,7 +352,7 @@ SparcLinuxProcess::SparcLinuxProcess(const std::string &name,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, system,
+    : SparcLiveProcess(name, objFile, system,
             stdin_fd, stdout_fd, stderr_fd, argv, envp),
      Num_Syscall_Descs(sizeof(syscallDescs) / sizeof(SyscallDesc))
 {
diff --git a/arch/sparc/linux/process.hh b/arch/sparc/linux/process.hh
index 36b2819da..1565ab549 100644
--- a/arch/sparc/linux/process.hh
+++ b/arch/sparc/linux/process.hh
@@ -29,11 +29,13 @@
 #ifndef __SPARC_LINUX_PROCESS_HH__
 #define __SPARC_LINUX_PROCESS_HH__
 
+#include "arch/sparc/process.hh"
 #include "sim/process.hh"
 
+namespace SparcISA {
 
 /// A process with emulated SPARC/Linux syscalls.
-class SparcLinuxProcess : public LiveProcess
+class SparcLinuxProcess : public SparcLiveProcess
 {
   public:
     /// Constructor.
@@ -55,5 +57,5 @@ class SparcLinuxProcess : public LiveProcess
     const int Num_Syscall_Descs;
 };
 
-
+} // namespace SparcISA
 #endif // __ALPHA_LINUX_PROCESS_HH__
diff --git a/arch/sparc/process.cc b/arch/sparc/process.cc
index 174df2be4..c7e08358d 100644
--- a/arch/sparc/process.cc
+++ b/arch/sparc/process.cc
@@ -26,22 +26,31 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include "arch/sparc/isa_traits.hh"
 #include "arch/sparc/process.hh"
 #include "arch/sparc/linux/process.hh"
 #include "base/loader/object_file.hh"
 #include "base/misc.hh"
+#include "cpu/exec_context.hh"
+#include "sim/builder.hh"
+#include "sim/system.hh"
 
 using namespace std;
+using namespace SparcISA;
 
-namespace SparcISA
+SparcLiveProcess *
+SparcLiveProcess::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)
 {
+    SparcLiveProcess *process = NULL;
+
+    ObjectFile *objFile = createObjectFile(executable);
+    if (objFile == NULL) {
+        fatal("Can't load object file %s", executable);
+    }
+
 
-LiveProcess *
-createProcess(const string &nm, ObjectFile * objFile, System * system,
-        int stdin_fd, int stdout_fd, int stderr_fd,
-        vector<string> &argv, vector<string> &envp)
-{
-    LiveProcess * process = NULL;
     if (objFile->getArch() != ObjectFile::SPARC)
         fatal("Object file does not match architecture.");
     switch (objFile->getOpSys()) {
@@ -55,7 +64,98 @@ createProcess(const string &nm, ObjectFile * objFile, System * system,
       default:
         fatal("Unknown/unsupported operating system.");
     }
+
+    if (process == NULL)
+        fatal("Unknown error creating process object.");
     return process;
 }
 
-} // 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)
+    : LiveProcess(nm, objFile, _system, stdin_fd, stdout_fd, stderr_fd,
+        argv, envp)
+{
+
+    // XXX all the below need to be updated for SPARC - Ali
+    brk_point = objFile->dataBase() + objFile->dataSize() + objFile->bssSize();
+    brk_point = roundUp(brk_point, VMPageSize);
+
+    // Set up stack.  On Alpha, stack goes below text section.  This
+    // code should get moved to some architecture-specific spot.
+    stack_base = objFile->textBase() - (409600+4096);
+
+    // Set up region for mmaps.  Tru64 seems to start just above 0 and
+    // grow up from there.
+    mmap_start = mmap_end = 0x10000;
+
+    // Set pointer for next thread stack.  Reserve 8M for main stack.
+    next_thread_stack_base = stack_base - (8 * 1024 * 1024);
+
+}
+
+void
+SparcLiveProcess::startup()
+{
+    argsInit(MachineBytes, VMPageSize);
+}
+
+
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
+
+    VectorParam<string> cmd;
+    Param<string> executable;
+    Param<string> input;
+    Param<string> output;
+    VectorParam<string> env;
+    SimObjectParam<System *> system;
+
+END_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
+
+    INIT_PARAM(cmd, "command line (executable plus arguments)"),
+    INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
+    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(system, "system")
+
+END_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
+
+
+CREATE_SIM_OBJECT(SparcLiveProcess)
+{
+    string in = input;
+    string out = output;
+
+    // initialize file descriptors to default: same as simulator
+    int stdin_fd, stdout_fd, stderr_fd;
+
+    if (in == "stdin" || in == "cin")
+        stdin_fd = STDIN_FILENO;
+    else
+        stdin_fd = Process::openInputFile(input);
+
+    if (out == "stdout" || out == "cout")
+        stdout_fd = STDOUT_FILENO;
+    else if (out == "stderr" || out == "cerr")
+        stdout_fd = STDERR_FILENO;
+    else
+        stdout_fd = Process::openOutputFile(out);
+
+    stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
+
+    return SparcLiveProcess::create(getInstanceName(), system,
+                               stdin_fd, stdout_fd, stderr_fd,
+                               (string)executable == "" ? cmd[0] : executable,
+                               cmd, env);
+}
+
+
+REGISTER_SIM_OBJECT("SparcLiveProcess", SparcLiveProcess)
+
+
diff --git a/arch/sparc/process.hh b/arch/sparc/process.hh
index 1c2d86b6a..cc4d0ae0a 100644
--- a/arch/sparc/process.hh
+++ b/arch/sparc/process.hh
@@ -31,19 +31,32 @@
 
 #include <string>
 #include <vector>
+#include "sim/process.hh"
 
-class LiveProcess;
 class ObjectFile;
 class System;
 
-namespace SparcISA
+class SparcLiveProcess : public LiveProcess
 {
+  protected:
+    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);
 
-LiveProcess *
-createProcess(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);
+    void startup();
 
-} // namespace SparcISA
+  public:
+    // this function is used to create the LiveProcess object, since
+    // we can't tell which subclass of LiveProcess to use until we
+    // open and look at the object file.
+    static SparcLiveProcess *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);
+
+};
 
 #endif // __SPARC_PROCESS_HH__