Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/configs/common/SysPaths.py

@@ -0,0 +1,71 @@
+# 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
+
+import os, sys
+from os.path import isdir, join as joinpath
+from os import environ as env
+
+config_path = os.path.dirname(os.path.abspath(__file__))
+config_root = os.path.dirname(config_path)
+
+def disk(file):
+    system()
+    return joinpath(disk.dir, file)
+
+def binary(file):
+    system()
+    return joinpath(binary.dir, file)
+
+def script(file):
+    system()
+    return joinpath(script.dir, file)
+
+def system():
+    if not system.dir:
+        try:
+                path = env['M5_PATH'].split(':')
+        except KeyError:
+                path = [ '/dist/m5/system', '/n/poolfs/z/dist/m5/system' ]
+
+        for system.dir in path:
+            if os.path.isdir(system.dir):
+                break
+        else:
+            raise ImportError, "Can't find a path to system files."
+
+    if not binary.dir:
+        binary.dir = joinpath(system.dir, 'binaries')
+    if not disk.dir:
+        disk.dir = joinpath(system.dir, 'disks')
+    if not script.dir:
+        script.dir = joinpath(config_root, 'boot')
+
+system.dir = None
+binary.dir = None
+disk.dir = None
+script.dir = None