Changes for Process object initialization in merged-memory environment.

System object now exists for both fullsys and syscall emulation, as the
latter needs it so that Process objects can find the shared PhysicalMemory
for initialization.
Changes are incomplete: still need to fix up Process (& EioProcess) memory
initialization and syscall emulation code for new mem interface.

arch/alpha/alpha_linux_process.cc:
arch/alpha/alpha_linux_process.hh:
arch/alpha/alpha_tru64_process.cc:
arch/alpha/alpha_tru64_process.hh:
cpu/base.cc:
cpu/base.hh:
    Take System argument in constructor.
cpu/exec_context.cc:
    Take System argument in constructor.
    Merge two constructors into a single one.
cpu/exec_context.hh:
    Take System argument in constructor.
    Merge two constructors into a single one.
    Replace dummy translation with lookup in Process object's page table.
python/m5/objects/Process.py:
    Add System parameter to Process object (& subobjects).
python/m5/objects/System.py:
    Segregate full-system only Process parameters (most of them!).
sim/process.cc:
    Take System argument in constructor.
    Move initialization to startup() callback to occur after system & cpus
    are initialized.
    Generate ProxyMemory object to pass to loader for transparent
    virtual page allocation.
sim/process.hh:
    Take System argument in constructor.
    Move initialization to startup() callback to occur after system & cpus
    are initialized.
sim/system.cc:
sim/system.hh:
    Enable System object for non-full-system too.
    Basically involved putting most of the existing code
    inside '#ifdef FULL_SYSTEM'.
    Key thing needed for syscall emulation at this point is
    the PhysicalMemory object (for Process initialization).

--HG--
extra : convert_revision : f0f34b47bd4f77b502191affd3d03b4d6d9bcdd8

4 files changed, 8 insertions, 3 deletions

diff --git a/arch/alpha/alpha_linux_process.cc b/arch/alpha/alpha_linux_process.cc
index 83b0b5e5a..1c3a21582 100644
--- a/arch/alpha/alpha_linux_process.cc
+++ b/arch/alpha/alpha_linux_process.cc
@@ -943,12 +943,13 @@ AlphaLinuxProcess::syscall(ExecContext *xc)
 
 AlphaLinuxProcess::AlphaLinuxProcess(const std::string &name,
                                      ObjectFile *objFile,
+                                     System *system,
                                      int stdin_fd,
                                      int stdout_fd,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp)
+    : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd,
+                  argv, envp)
 {
-    init_regs->intRegFile[0] = 0;
 }
diff --git a/arch/alpha/alpha_linux_process.hh b/arch/alpha/alpha_linux_process.hh
index b4fe8e8f8..6a4f31e5b 100644
--- a/arch/alpha/alpha_linux_process.hh
+++ b/arch/alpha/alpha_linux_process.hh
@@ -39,6 +39,7 @@ class AlphaLinuxProcess : public LiveProcess
     /// Constructor.
     AlphaLinuxProcess(const std::string &name,
                       ObjectFile *objFile,
+                      System *system,
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp);
diff --git a/arch/alpha/alpha_tru64_process.cc b/arch/alpha/alpha_tru64_process.cc
index b7a1c7d59..3b5eef8b0 100644
--- a/arch/alpha/alpha_tru64_process.cc
+++ b/arch/alpha/alpha_tru64_process.cc
@@ -1924,11 +1924,13 @@ AlphaTru64Process::syscall(ExecContext *xc)
 
 AlphaTru64Process::AlphaTru64Process(const std::string &name,
                                      ObjectFile *objFile,
+                                     System *system,
                                      int stdin_fd,
                                      int stdout_fd,
                                      int stderr_fd,
                                      std::vector<std::string> &argv,
                                      std::vector<std::string> &envp)
-    : LiveProcess(name, objFile, stdin_fd, stdout_fd, stderr_fd, argv, envp)
+    : LiveProcess(name, objFile, system, stdin_fd, stdout_fd, stderr_fd,
+                  argv, envp)
 {
 }
diff --git a/arch/alpha/alpha_tru64_process.hh b/arch/alpha/alpha_tru64_process.hh
index 49979806c..c28598700 100644
--- a/arch/alpha/alpha_tru64_process.hh
+++ b/arch/alpha/alpha_tru64_process.hh
@@ -38,6 +38,7 @@ class AlphaTru64Process : public LiveProcess
     /// Constructor.
     AlphaTru64Process(const std::string &name,
                       ObjectFile *objFile,
+                      System *system,
                       int stdin_fd, int stdout_fd, int stderr_fd,
                       std::vector<std::string> &argv,
                       std::vector<std::string> &envp);