Filled out the object file loader so it can load object files for several OSs and architectures.

SConscript:
    Added ./libelf as an include search directory. There might be a better spot for this than where I put it.
arch/SConscript:
    Combined the linux_process.h and tru64_process.h into process.h. This allows each ISA to support processes from arbitrary OSs.
arch/alpha/SConscript:
    Added process.cc as a source file. It provides an implementation of createProcess, which takes an object_file object and creates the appropriate process object, or dies.
base/loader/elf_object.cc:
    Actually extract the OS and architecture from the elf file, rather than always guessing Alpha and Linux.
base/loader/object_file.hh:
    Added constants for SPARC, MIPS, and Solaris, and changed the include for the Addr type.
sim/process.cc:
    Pushed creation of specific process objects into the ISA specific code.

--HG--
extra : convert_revision : b4754e7ca8328672d07e1394c4d162e199606b53

3 files changed, 110 insertions, 0 deletions

diff --git a/arch/alpha/SConscript b/arch/alpha/SConscript
index 3b0e69b7a..03d73eef7 100644
--- a/arch/alpha/SConscript
+++ b/arch/alpha/SConscript
@@ -64,6 +64,7 @@ syscall_emulation_sources = Split('''
 	common_syscall_emul.cc
 	linux_process.cc
 	tru64_process.cc
+	process.cc
 	''')
 
 # Set up complete list of sources based on configuration.
diff --git a/arch/alpha/process.cc b/arch/alpha/process.cc
new file mode 100644
index 000000000..b2dbe7ad1
--- /dev/null
+++ b/arch/alpha/process.cc
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2003-2004 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.
+ */
+
+#include "arch/alpha/process.hh"
+
+namespace AlphaISA
+{
+
+LiveProcess *
+createProcess(const std::string &nm, ObjectFile * objFile,
+        int stdin_fd, int stdout_fd, int stderr_fd,
+        std::vector<std::string> &argv, std::vector<std::string> &envp)
+{
+    LiveProcess * process = NULL;
+    if (objFile->getArch() != ObjectFile::Alpha)
+        fatal("Object file does not match architecture.");
+    switch (objFile->getOpSys()) {
+      case ObjectFile::Tru64:
+        process = new AlphaTru64Process(nm, objFile,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+      case ObjectFile::Linux:
+        process = new AlphaLinuxProcess(nm, objFile,
+                                        stdin_fd, stdout_fd, stderr_fd,
+                                        argv, envp);
+        break;
+
+      default:
+        fatal("Unknown/unsupported operating system.");
+    }
+    return process;
+}
+
+} // namespace AlphaISA
diff --git a/arch/alpha/process.hh b/arch/alpha/process.hh
new file mode 100644
index 000000000..7b660ddd0
--- /dev/null
+++ b/arch/alpha/process.hh
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2003-2004 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.
+ */
+
+#ifndef __ALPHA_PROCESS_HH__
+#define __ALPHA_PROCESS_HH__
+
+#include <string>
+
+#include "arch/alpha/linux_process.hh"
+#include "arch/alpha/tru64_process.hh"
+#include "base/loader/object_file.hh"
+
+namespace AlphaISA
+{
+
+LiveProcess *
+createProcess(const std::string &nm, ObjectFile * objFile,
+        int stdin_fd, int stdout_fd, int stderr_fd,
+        std::vector<std::string> &argv, std::vector<std::string> &envp);
+
+} // namespace AlphaISA
+
+#endif // __ALPHA_PROCESS_HH__