Make trap instructions always generate TrapInstruction Fault objects which call into the Process object to handle system calls. Refactored the Process objects, and move the handler code into it's own file, and add some syscalls which are used in a natively compiled hello world. Software traps with trap number 3 (not syscall number 3) are supposed to cause the register windows to be flushed but are ignored right now. Finally, made uname for SPARC report a 2.6.12 kernel which is what m22-018.pool happens to be running.

--HG--
extra : convert_revision : ea873f01c62234c0542f310cc143c6a7c76ade94

1 files changed, 105 insertions, 17 deletions

diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh
index 1cf7ec224..2512441c6 100644
--- a/src/arch/sparc/process.hh
+++ b/src/arch/sparc/process.hh
@@ -39,27 +39,13 @@
 class ObjectFile;
 class System;
 
-typedef struct
-{
-    int64_t a_type;
-    union {
-        int64_t a_val;
-        Addr    a_ptr;
-        Addr    a_fcn;
-    };
-} m5_auxv_t;
-
 class SparcLiveProcess : public LiveProcess
 {
   protected:
 
-    static const Addr StackBias = 2047;
-
     //The locations of the fill and spill handlers
     Addr fillStart, spillStart;
 
-    std::vector<m5_auxv_t> auxv;
-
     SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
                 System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
                 std::vector<std::string> &argv,
@@ -69,11 +55,10 @@ class SparcLiveProcess : public LiveProcess
                 uint64_t _gid, uint64_t _egid,
                 uint64_t _pid, uint64_t _ppid);
 
-    void startup();
-
   public:
 
-    void argsInit(int intSize, int pageSize);
+    //Handles traps which request services from the operating system
+    virtual void handleTrap(int trapNum, ThreadContext *tc);
 
     Addr readFillStart()
     { return fillStart; }
@@ -83,4 +68,107 @@ class SparcLiveProcess : public LiveProcess
 
 };
 
+struct M5_32_auxv_t
+{
+    int32_t a_type;
+    union {
+        int32_t a_val;
+        int32_t a_ptr;
+        int32_t a_fcn;
+    };
+
+    M5_32_auxv_t()
+    {}
+
+    M5_32_auxv_t(int32_t type, int32_t val);
+};
+
+class Sparc32LiveProcess : public SparcLiveProcess
+{
+  protected:
+
+    std::vector<M5_32_auxv_t> auxv;
+
+    Sparc32LiveProcess(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,
+                const std::string &cwd,
+                uint64_t _uid, uint64_t _euid,
+                uint64_t _gid, uint64_t _egid,
+                uint64_t _pid, uint64_t _ppid) :
+            SparcLiveProcess(nm, objFile, _system,
+                         stdin_fd, stdout_fd, stderr_fd,
+                         argv, envp, cwd,
+                         _uid, _euid, _gid, _egid, _pid, _ppid)
+    {
+        // Set up stack. On SPARC Linux, stack goes from the top of memory
+        // downward, less the hole for the kernel address space.
+        stack_base = (Addr)0xf0000000ULL;
+
+        // Set up region for mmaps.
+        mmap_start = mmap_end = 0x70000000;
+    }
+
+    void startup();
+
+  public:
+
+    void argsInit(int intSize, int pageSize);
+
+};
+
+struct M5_64_auxv_t
+{
+    int64_t a_type;
+    union {
+        int64_t a_val;
+        int64_t a_ptr;
+        int64_t a_fcn;
+    };
+
+    M5_64_auxv_t()
+    {}
+
+    M5_64_auxv_t(int64_t type, int64_t val);
+};
+
+class Sparc64LiveProcess : public SparcLiveProcess
+{
+  protected:
+
+    static const Addr StackBias = 2047;
+
+    std::vector<M5_64_auxv_t> auxv;
+
+    Sparc64LiveProcess(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,
+                const std::string &cwd,
+                uint64_t _uid, uint64_t _euid,
+                uint64_t _gid, uint64_t _egid,
+                uint64_t _pid, uint64_t _ppid) :
+            SparcLiveProcess(nm, objFile, _system,
+                         stdin_fd, stdout_fd, stderr_fd,
+                         argv, envp, cwd,
+                         _uid, _euid, _gid, _egid, _pid, _ppid)
+    {
+        // Set up stack. On SPARC Linux, stack goes from the top of memory
+        // downward, less the hole for the kernel address space.
+        stack_base = (Addr)0x80000000000ULL;
+
+        // Set up region for mmaps.  Tru64 seems to start just above 0 and
+        // grow up from there.
+        mmap_start = mmap_end = 0xfffff80000000000ULL;
+    }
+
+    void startup();
+
+  public:
+
+    void argsInit(int intSize, int pageSize);
+
+};
+
 #endif // __SPARC_PROCESS_HH__