configs: Fix relative import in non-package in configs

Fix "ValueError: Attempted relative import in non-package"

Python "compilation" fails when running, among other configs:
    ./build/X86/gem5.fast ./configs/example/ruby_random_test.py

The files in the configs/folder_name folder that are not named
"folder_name.py" are not packages, and thus Python does not allow
relative imports in them.

This fixes the bug reported in
    https://gem5.atlassian.net/projects/GEM5/issues/GEM5-188

Change-Id: Ic8befc30e4cff1d6e8d2f5db1b7f9b89b0fc1395
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/24163
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: kokoro <noreply+kokoro@google.com>

configs/common/Benchmarks.py

@@ -27,7 +27,7 @@
 from __future__ import print_function
 from __future__ import absolute_import
 
-from .SysPaths import script, disk, binary
+from common.SysPaths import script, disk, binary
 from os import environ as env
 from m5.defines import buildEnv
 

configs/common/CacheConfig.py

@@ -44,7 +44,7 @@ from __future__ import absolute_import
 
 import m5
 from m5.objects import *
-from .Caches import *
+from common.Caches import *
 from common import ObjectList
 
 def config_cache(options, system):

configs/common/FSConfig.py

@@ -43,8 +43,8 @@ from __future__ import absolute_import
 import m5
 from m5.objects import *
 from m5.util import *
-from .Benchmarks import *
-from . import ObjectList
+from common.Benchmarks import *
+from common import ObjectList
 
 # Populate to reflect supported os types per target ISA
 os_types = { 'mips'  : [ 'linux' ],

configs/common/MemConfig.py

@@ -38,7 +38,7 @@ from __future__ import absolute_import
 
 import m5.objects
 from common import ObjectList
-from . import HMC
+from common import HMC
 
 def create_mem_ctrl(cls, r, i, nbr_mem_ctrls, intlv_bits, intlv_size):
     """

configs/common/Options.py

@@ -43,8 +43,8 @@ import m5
 from m5.defines import buildEnv
 from m5.objects import *
 
-from .Benchmarks import *
-from . import ObjectList
+from common.Benchmarks import *
+from common import ObjectList
 
 vio_9p_help = """\
 Enable the Virtio 9P device and set the path to share. The default 9p path is
@@ -407,7 +407,7 @@ def addSEOptions(parser):
 
 
 def addFSOptions(parser):
-    from .FSConfig import os_types
+    from common.FSConfig import os_types
 
     # Simulation options
     parser.add_option("--timesync", action="store_true",

configs/common/Simulation.py

@@ -45,7 +45,7 @@ from os import getcwd
 from os.path import join as joinpath
 
 from common import CpuConfig
-from . import ObjectList
+from common import ObjectList
 
 import m5
 from m5.defines import buildEnv

configs/ruby/GPU_RfO.py

@@ -34,8 +34,8 @@ import m5
 from m5.objects import *
 from m5.defines import buildEnv
 from m5.util import addToPath
-from .Ruby import create_topology
-from .Ruby import send_evicts
+from Ruby import create_topology
+from Ruby import send_evicts
 
 addToPath('../')
 

configs/ruby/MI_example.py

@@ -29,8 +29,8 @@ import math
 import m5
 from m5.objects import *
 from m5.defines import buildEnv
-from .Ruby import create_topology, create_directories
-from .Ruby import send_evicts
+from Ruby import create_topology, create_directories
+from Ruby import send_evicts
 
 #
 # Declare caches used by the protocol

configs/topologies/Cluster.py

@@ -27,7 +27,7 @@
 from __future__ import print_function
 from __future__ import absolute_import
 
-from .BaseTopology import BaseTopology
+from topologies.BaseTopology import BaseTopology
 
 class Cluster(BaseTopology):
     """ A cluster is a group of nodes which are all one hop from eachother

configs/topologies/Crossbar.py

@@ -30,7 +30,7 @@ from __future__ import absolute_import
 from m5.params import *
 from m5.objects import *
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 class Crossbar(SimpleTopology):
     description='Crossbar'

configs/topologies/CrossbarGarnet.py

@@ -30,7 +30,7 @@ from __future__ import absolute_import
 from m5.params import *
 from m5.objects import *
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 class CrossbarGarnet(SimpleTopology):
     description='CrossbarGarnet'

configs/topologies/MeshDirCorners_XY.py

@@ -32,7 +32,7 @@ from m5.objects import *
 
 from common import FileSystemConfig
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 # Creates a Mesh topology with 4 directories, one at each corner.
 # One L1 (and L2, depending on the protocol) are connected to each router.

configs/topologies/Mesh_XY.py

@@ -33,7 +33,7 @@ from m5.objects import *
 
 from common import FileSystemConfig
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 # Creates a generic Mesh assuming an equal number of cache
 # and directory controllers.

configs/topologies/Mesh_westfirst.py

@@ -31,7 +31,7 @@ from __future__ import absolute_import
 from m5.params import *
 from m5.objects import *
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 # Creates a generic Mesh assuming an equal number of cache
 # and directory controllers.

configs/topologies/Pt2Pt.py

@@ -31,7 +31,7 @@ from __future__ import absolute_import
 from m5.params import *
 from m5.objects import *
 
-from .BaseTopology import SimpleTopology
+from topologies.BaseTopology import SimpleTopology
 
 class Pt2Pt(SimpleTopology):
     description='Pt2Pt'