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-rw-r--r--sim/process.hh87
1 files changed, 30 insertions, 57 deletions
diff --git a/sim/process.hh b/sim/process.hh
index 3a48f128c..807bf330f 100644
--- a/sim/process.hh
+++ b/sim/process.hh
@@ -40,23 +40,28 @@
#include <vector>
-#include "arch/isa_traits.hh"
-#include "sim/sim_object.hh"
-#include "sim/stats.hh"
#include "base/statistics.hh"
-#include "base/trace.hh"
+#include "sim/sim_object.hh"
class CPUExecContext;
class ExecContext;
-class FunctionalMemory;
class SyscallDesc;
+class PageTable;
+class TranslatingPort;
+class System;
+
+void
+copyStringArray(std::vector<std::string> &strings, Addr array_ptr,
+ Addr data_ptr, TranslatingPort* memPort);
+
class Process : public SimObject
{
- protected:
- typedef TheISA::RegFile RegFile;
- typedef TheISA::MachInst MachInst;
public:
+ /// Pointer to object representing the system this process is
+ /// running on.
+ System *system;
+
// have we initialized an execution context from this process? If
// yes, subsequent contexts are assumed to be for dynamically
// created threads and are not initialized.
@@ -76,22 +81,12 @@ class Process : public SimObject
WaitRec(Addr chan, ExecContext *ctx)
: waitChan(chan), waitingContext(ctx)
- {
- }
+ { }
};
// list of all blocked contexts
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
-
- Addr data_base; // initialized data segment base
- unsigned data_size; // initialized data + bss size in bytes
-
Addr brk_point; // top of the data segment
Addr stack_base; // stack segment base (highest address)
@@ -110,7 +105,6 @@ class Process : public SimObject
Addr nxm_end;
std::string prog_fname; // file name
- Addr prog_entry; // entry point (initial PC)
Stats::Scalar<> num_syscalls; // number of syscalls executed
@@ -118,6 +112,7 @@ class Process : public SimObject
protected:
// constructor
Process(const std::string &nm,
+ System *_system,
int stdin_fd, // initial I/O descriptors
int stdout_fd,
int stderr_fd);
@@ -126,7 +121,11 @@ class Process : public SimObject
virtual void startup();
protected:
- FunctionalMemory *memory;
+ /// Memory object for initialization (image loading)
+ TranslatingPort *initVirtMem;
+
+ public:
+ PageTable *pTable;
private:
// file descriptor remapping support
@@ -160,29 +159,7 @@ class Process : public SimObject
// look up simulator fd for given target fd
int sim_fd(int tgt_fd);
- // is this a valid instruction fetch address?
- bool validInstAddr(Addr addr)
- {
- return (text_base <= addr &&
- addr < text_base + text_size &&
- !(addr & (sizeof(MachInst)-1)));
- }
-
- // is this a valid address? (used to filter data fetches)
- // note that we just assume stack size <= 16MB
- // this may be alpha-specific
- bool validDataAddr(Addr addr)
- {
- return ((data_base <= addr && addr < brk_point) ||
- (next_thread_stack_base <= addr && addr < stack_base) ||
- (text_base <= addr && addr < (text_base + text_size)) ||
- (mmap_start <= addr && addr < mmap_end) ||
- (nxm_start <= addr && addr < nxm_end));
- }
-
- virtual void syscall(ExecContext *xc) = 0;
-
- virtual FunctionalMemory *getMemory() { return memory; }
+ virtual void syscall(int64_t callnum, ExecContext *xc) = 0;
};
//
@@ -192,25 +169,21 @@ class ObjectFile;
class LiveProcess : public Process
{
protected:
+ ObjectFile *objFile;
+ std::vector<std::string> argv;
+ std::vector<std::string> envp;
+
LiveProcess(const std::string &nm, ObjectFile *objFile,
- int stdin_fd, int stdout_fd, int stderr_fd,
+ System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
std::vector<std::string> &argv,
std::vector<std::string> &envp);
- 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 LiveProcess *create(const std::string &nm,
- int stdin_fd, int stdout_fd, int stderr_fd,
- std::string executable,
- std::vector<std::string> &argv,
- std::vector<std::string> &envp);
-
- virtual void syscall(ExecContext *xc);
+ virtual void argsInit(int intSize, int pageSize);
- virtual SyscallDesc* getDesc(int callnum) { panic("Must be implemented."); }
+ public:
+ virtual void syscall(int64_t callnum, ExecContext *xc);
+ virtual SyscallDesc* getDesc(int callnum) = 0;
};