Get SPARC to the point that it starts running. Add ability to load the ROM bin files, cleanup lockstep printing a bit

Since we don't have a platform yet, you need to comment out the default responder stuff in Bus.py to make it work.

SConstruct:
    Add TARGET_ISA to the list of environment variables that end up in the build_env for python
configs/common/FSConfig.py:
    add a simple SPARC system to being testing with, you'll need to change makeLinuxAlphaSystem to makeSparcSystem in fs.py for now
src/SConscript:
    add a raw file object, at least until we get more info about how to compile openboot properly
src/arch/sparc/system.cc:
src/arch/sparc/system.hh:
    add parameters for ROM files (OBP/Reset/Hypervisor), a ROM, load files into ROM
src/base/loader/object_file.cc:
src/base/loader/object_file.hh:
    add option to try raw when nothing works
src/cpu/exetrace.cc:
    cleanup lockstep printing a little bit
src/cpu/m5legion_interface.h:
    change the instruction to be 32 bits because it is
src/mem/physical.cc:
    fix assert that doesn't work if memory starts somewhere above 0
src/python/m5/objects/BaseCPU.py:
    Add if statement to choose between sparc tlbs and alpha tlbs
src/python/m5/objects/System.py:
    Add a sparc system that sets the rom addresses correctly
src/python/m5/params.py:
    add the ability to add Addr() together

--HG--
extra : convert_revision : bbbd8a56134f2dda2728091f740e2f7119b0c4af

src/base/loader/object_file.cc

@@ -45,6 +45,7 @@
 #include "base/loader/ecoff_object.hh"
 #include "base/loader/aout_object.hh"
 #include "base/loader/elf_object.hh"
+#include "base/loader/raw_object.hh"
 
 #include "mem/translating_port.hh"
 
@@ -107,7 +108,7 @@ ObjectFile::close()
 
 
 ObjectFile *
-createObjectFile(const string &fname)
+createObjectFile(const string &fname, bool raw)
 {
     // open the file
     int fd = open(fname.c_str(), O_RDONLY);
@@ -141,6 +142,9 @@ createObjectFile(const string &fname)
         return fileObj;
     }
 
+    if (raw)
+        return RawObject::tryFile(fname, fd, len, fileData);
+
     // don't know what it is
     close(fd);
     munmap(fileData, len);

src/base/loader/object_file.hh

@@ -114,9 +114,11 @@ class ObjectFile
     size_t textSize() const { return text.size; }
     size_t dataSize() const { return data.size; }
     size_t bssSize() const { return bss.size; }
+
+    void setTextBase(Addr a) { text.baseAddr = a; }
 };
 
-ObjectFile *createObjectFile(const std::string &fname);
+ObjectFile *createObjectFile(const std::string &fname, bool raw = false);
 
 
 #endif // __OBJECT_FILE_HH__

src/base/loader/raw_object.cc

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Steve Reinhardt
+ */
+
+#include "base/loader/raw_object.hh"
+#include "base/trace.hh"
+
+ObjectFile *
+RawObject::tryFile(const std::string &fname, int fd, size_t len, uint8_t *data)
+{
+    return new RawObject(fname, fd, len, data, ObjectFile::UnknownArch,
+            ObjectFile::UnknownOpSys);
+}
+
+RawObject::RawObject(const std::string &_filename, int _fd, size_t _len,
+        uint8_t *_data, Arch _arch, OpSys _opSys)
+    : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys)
+{
+    text.baseAddr = 0;
+    text.size = len;
+    text.fileImage = fileData;
+
+    data.baseAddr = 0;
+    data.size = 0;
+    data.fileImage = NULL;
+
+    bss.baseAddr = 0;
+    bss.size = 0;
+    bss.fileImage = NULL;
+
+    DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n",
+             text.baseAddr, text.size, data.baseAddr, data.size,
+             bss.baseAddr, bss.size);
+}
+
+bool
+RawObject::loadGlobalSymbols(SymbolTable *symtab)
+{
+    return true;
+}
+
+bool
+RawObject::loadLocalSymbols(SymbolTable *symtab)
+{
+    return true;
+}

src/base/loader/raw_object.hh

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Ali Saidi
+ */
+
+#ifndef __BASE_LOADER_RAW_OBJECT_HH__
+#define __BASE_LOADER_RAW_OBJECT_HH__
+
+#include "base/loader/object_file.hh"
+
+class RawObject: public ObjectFile
+{
+  protected:
+    RawObject(const std::string &_filename, int _fd, size_t _len,
+              uint8_t *_data, Arch _arch, OpSys _opSys);
+  public:
+    virtual ~RawObject() {}
+
+    virtual bool loadGlobalSymbols(SymbolTable *symtab);
+    virtual bool loadLocalSymbols(SymbolTable *symtab);
+
+    static ObjectFile *tryFile(const std::string &fname, int fd, size_t len,
+            uint8_t *data);
+};
+
+
+
+#endif // __BASE_LOADER_RAW_OBJECT_HH__