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

2 files changed, 20 insertions, 10 deletions

diff --git a/src/sim/process.cc b/src/sim/process.cc
index e5d868115..acc509a6f 100644
--- a/src/sim/process.cc
+++ b/src/sim/process.cc
@@ -302,20 +302,20 @@ DEFINE_SIM_OBJECT_CLASS_NAME("Process", Process)
 
 void
 copyStringArray(vector<string> &strings, Addr array_ptr, Addr data_ptr,
-                TranslatingPort* memPort)
+                TranslatingPort* memPort, int ptr_size)
 {
     Addr data_ptr_swap;
     for (int i = 0; i < strings.size(); ++i) {
         data_ptr_swap = htog(data_ptr);
-        memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr_swap, sizeof(Addr));
+        memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr_swap, ptr_size);
         memPort->writeString(data_ptr, strings[i].c_str());
-        array_ptr += sizeof(Addr);
+        array_ptr += ptr_size;
         data_ptr += strings[i].size() + 1;
     }
     // add NULL terminator
     data_ptr = 0;
 
-    memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr, sizeof(Addr));
+    memPort->writeBlob(array_ptr, (uint8_t*)&data_ptr, ptr_size);
 }
 
 LiveProcess::LiveProcess(const string &nm, ObjectFile *_objFile,
@@ -475,14 +475,23 @@ LiveProcess::create(const std::string &nm, System *system, int stdin_fd,
         fatal("Unknown/unsupported operating system.");
     }
 #elif THE_ISA == SPARC_ISA
-    if (objFile->getArch() != ObjectFile::SPARC)
+    if (objFile->getArch() != ObjectFile::SPARC64 && objFile->getArch() != ObjectFile::SPARC32)
         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, cwd,
-                                        _uid, _euid, _gid, _egid, _pid, _ppid);
+        if (objFile->getArch() == ObjectFile::SPARC64) {
+            process = new Sparc64LinuxProcess(nm, objFile, system,
+                                              stdin_fd, stdout_fd, stderr_fd,
+                                              argv, envp, cwd,
+                                              _uid, _euid, _gid,
+                                              _egid, _pid, _ppid);
+        } else {
+            process = new Sparc32LinuxProcess(nm, objFile, system,
+                                              stdin_fd, stdout_fd, stderr_fd,
+                                              argv, envp, cwd,
+                                              _uid, _euid, _gid,
+                                              _egid, _pid, _ppid);
+        }
         break;
 
 
diff --git a/src/sim/process.hh b/src/sim/process.hh
index bf65c6e06..1226db81b 100644
--- a/src/sim/process.hh
+++ b/src/sim/process.hh
@@ -44,6 +44,7 @@
 #include <vector>
 
 #include "base/statistics.hh"
+#include "sim/host.hh"
 #include "sim/sim_object.hh"
 
 class ThreadContext;
@@ -59,7 +60,7 @@ namespace TheISA
 
 void
 copyStringArray(std::vector<std::string> &strings, Addr array_ptr,
-        Addr data_ptr, TranslatingPort* memPort);
+        Addr data_ptr, TranslatingPort* memPort, int ptr_size = sizeof(Addr));
 
 class Process : public SimObject
 {