2 files changed, 153 insertions, 1 deletions

diff --git a/src/sim/process.cc b/src/sim/process.cc
index 1533a376d..5080c3ac1 100644
--- a/src/sim/process.cc
+++ b/src/sim/process.cc
@@ -50,6 +50,20 @@
 #include "sim/syscall_emul.hh"
 #include "sim/system.hh"
 
+#include "arch/isa_specific.hh"
+#if THE_ISA == ALPHA_ISA
+#include "arch/alpha/linux/process.hh"
+#include "arch/alpha/tru64/process.hh"
+#elif THE_ISA == SPARC_ISA
+#include "arch/sparc/linux/process.hh"
+#include "arch/sparc/solaris/process.hh"
+#elif THE_ISA == MIPS_ISA
+#include "arch/mips/linux/process.hh"
+#else
+#error "THE_ISA not set"
+#endif
+
+
 using namespace std;
 using namespace TheISA;
 
@@ -362,4 +376,132 @@ LiveProcess::syscall(int64_t callnum, ThreadContext *tc)
     desc->doSyscall(callnum, this, tc);
 }
 
-DEFINE_SIM_OBJECT_CLASS_NAME("LiveProcess", LiveProcess);
+LiveProcess *
+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)
+{
+    LiveProcess *process = NULL;
+
+    ObjectFile *objFile = createObjectFile(executable);
+    if (objFile == NULL) {
+        fatal("Can't load object file %s", executable);
+    }
+
+#if THE_ISA == ALPHA_ISA
+    if (objFile->getArch() != ObjectFile::Alpha)
+        fatal("Object file architecture does not match compiled ISA (Alpha).");
+    switch (objFile->getOpSys()) {
+      case ObjectFile::Tru64:
+        process = new AlphaTru64Process(nm, objFile, system,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+      case ObjectFile::Linux:
+        process = new AlphaLinuxProcess(nm, objFile, system,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+      default:
+        fatal("Unknown/unsupported operating system.");
+    }
+#elif THE_ISA == SPARC_ISA
+    if (objFile->getArch() != ObjectFile::SPARC)
+        fatal("Object file architecture does not match compiled ISA (SPARC).");
+    switch (objFile->getOpSys()) {
+      case ObjectFile::Linux:
+        process = new SparcLinuxProcess(nm, objFile, system,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+
+      case ObjectFile::Solaris:
+        process = new SparcSolarisProcess(nm, objFile, system,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+      default:
+        fatal("Unknown/unsupported operating system.");
+    }
+#elif THE_ISA == MIPS_ISA
+    if (objFile->getArch() != ObjectFile::Mips)
+        fatal("Object file architecture does not match compiled ISA (MIPS).");
+    switch (objFile->getOpSys()) {
+      case ObjectFile::Linux:
+        process = new MipsLinuxProcess(nm, objFile, system,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+      default:
+        fatal("Unknown/unsupported operating system.");
+    }
+#else
+#error "THE_ISA not set"
+#endif
+
+
+    if (process == NULL)
+        fatal("Unknown error creating process object.");
+    return process;
+}
+
+
+BEGIN_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
+
+    VectorParam<string> cmd;
+    Param<string> executable;
+    Param<string> input;
+    Param<string> output;
+    VectorParam<string> env;
+    SimObjectParam<System *> system;
+
+END_DECLARE_SIM_OBJECT_PARAMS(LiveProcess)
+
+
+BEGIN_INIT_SIM_OBJECT_PARAMS(LiveProcess)
+
+    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(LiveProcess)
+
+
+CREATE_SIM_OBJECT(LiveProcess)
+{
+    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 LiveProcess::create(getInstanceName(), system,
+                               stdin_fd, stdout_fd, stderr_fd,
+                               (string)executable == "" ? cmd[0] : executable,
+                               cmd, env);
+}
+
+
+REGISTER_SIM_OBJECT("LiveProcess", LiveProcess)
diff --git a/src/sim/process.hh b/src/sim/process.hh
index edbc1e492..763deb100 100644
--- a/src/sim/process.hh
+++ b/src/sim/process.hh
@@ -186,6 +186,16 @@ class LiveProcess : public Process
     virtual void syscall(int64_t callnum, ThreadContext *tc);
 
     virtual SyscallDesc* getDesc(int callnum) = 0;
+
+    // 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 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);
 };