e9fcfb3c16
Change-Id: I049f2e97ad00d76341c2aeeaa02279862a8a4d71 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/25416 Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br>
82 lines
3.4 KiB
Python
82 lines
3.4 KiB
Python
# 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.
|
|
|
|
from __future__ import print_function
|
|
from __future__ import absolute_import
|
|
|
|
from six import string_types
|
|
import os, sys
|
|
|
|
config_path = os.path.dirname(os.path.abspath(__file__))
|
|
config_root = os.path.dirname(config_path)
|
|
|
|
class PathSearchFunc(object):
|
|
_sys_paths = None
|
|
environment_variable = 'M5_PATH'
|
|
|
|
def __init__(self, subdirs, sys_paths=None):
|
|
if isinstance(subdirs, string_types):
|
|
subdirs = [subdirs]
|
|
self._subdir = os.path.join(*subdirs)
|
|
if sys_paths:
|
|
self._sys_paths = sys_paths
|
|
|
|
def __call__(self, filename):
|
|
if os.sep in filename:
|
|
return filename
|
|
else:
|
|
if self._sys_paths is None:
|
|
try:
|
|
paths = os.environ[self.environment_variable].split(':')
|
|
except KeyError:
|
|
paths = [ '/dist/m5/system', '/n/poolfs/z/dist/m5/system' ]
|
|
|
|
# expand '~' and '~user' in paths
|
|
paths = map(os.path.expanduser, paths)
|
|
|
|
# filter out non-existent directories
|
|
paths = filter(os.path.isdir, paths)
|
|
|
|
if not paths:
|
|
raise IOError(
|
|
"Can't find system files directory, "
|
|
"check your {} environment variable"
|
|
.format(self.environment_variable))
|
|
|
|
self._sys_paths = list(paths)
|
|
|
|
filepath = os.path.join(self._subdir, filename)
|
|
paths = (os.path.join(p, filepath) for p in self._sys_paths)
|
|
try:
|
|
return next(p for p in paths if os.path.exists(p))
|
|
except StopIteration:
|
|
raise IOError("Can't find file '{}' on {}."
|
|
.format(filename, self.environment_variable))
|
|
|
|
disk = PathSearchFunc('disks')
|
|
binary = PathSearchFunc('binaries')
|
|
script = PathSearchFunc('boot', sys_paths=[config_root])
|