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-rw-r--r--configs/common/SysPaths.py49
1 files changed, 28 insertions, 21 deletions
diff --git a/configs/common/SysPaths.py b/configs/common/SysPaths.py
index c61c9962e..b13aff218 100644
--- a/configs/common/SysPaths.py
+++ b/configs/common/SysPaths.py
@@ -33,39 +33,46 @@ from os import environ as env
config_path = os.path.dirname(os.path.abspath(__file__))
config_root = os.path.dirname(config_path)
+def searchpath(path, file):
+ for p in path:
+ f = joinpath(p, file)
+ if os.path.exists(f):
+ return f
+ raise IOError, "Can't find file '%s' on path." % file
+
def disk(file):
system()
- return joinpath(disk.dir, file)
+ return searchpath(disk.path, file)
def binary(file):
system()
- return joinpath(binary.dir, file)
+ return searchpath(binary.path, file)
def script(file):
system()
- return joinpath(script.dir, file)
+ return searchpath(script.path, file)
def system():
- if not system.dir:
+ if not system.path:
try:
- path = env['M5_PATH'].split(':')
+ path = env['M5_PATH'].split(':')
except KeyError:
- path = [ '/dist/m5/system', '/n/poolfs/z/dist/m5/system' ]
+ path = [ '/dist/m5/system', '/n/poolfs/z/dist/m5/system' ]
+
+ # filter out non-existent directories
+ system.path = filter(os.path.isdir, path)
- 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 system.path:
+ raise IOError, "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')
+ if not binary.path:
+ binary.path = [joinpath(p, 'binaries') for p in system.path]
+ if not disk.path:
+ disk.path = [joinpath(p, 'disks') for p in system.path]
+ if not script.path:
+ script.path = [joinpath(config_root, 'boot')]
-system.dir = None
-binary.dir = None
-disk.dir = None
-script.dir = None
+system.path = None
+binary.path = None
+disk.path = None
+script.path = None