Linux系统移植:根文件系统

# -*- python -*- # Copyright (C) 2009, 2010 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import sys import gdb import os import os.path pythondir = '/opt/TuxamitoSoftToolchains/arm-arm1176jzfssf-linux-gnueabi/gcc-4.6.4/share/gcc-4.6.4/python' libdir = '/opt/TuxamitoSoftToolchains/arm-arm1176jzfssf-linux-gnueabi/gcc-4.6.4/arm-arm1176jzfssf-linux-gnueabi/lib' # This file might be loaded when there is no current objfile. This # can happen if the user loads it manually. In this case we don't # update sys.path; instead we just hope the user managed to do that # beforehand. if gdb.current_objfile () is not None: # Update module path. We want to find the relative path from libdir # to pythondir, and then we want to apply that relative path to the # directory holding the objfile with which this file is associated. # This preserves relocatability of the gcc tree. # Do a simple normalization that removes duplicate separators. pythondir = os.path.normpath (pythondir) libdir = os.path.normpath (libdir) prefix = os.path.commonprefix ([libdir, pythondir]) # In some bizarre configuration we might have found a match in the # middle of a directory name. if prefix[-1] != '/': prefix = os.path.dirname (prefix) + '/' # Strip off the prefix. pythondir = pythondir[len (prefix):] libdir = libdir[len (prefix):] # Compute the ".."s needed to get from libdir to the prefix. dotdots = ('..' + os.sep) * len (libdir.split (os.sep)) objfile = gdb.current_objfile ().filename dir_ = os.path.join (os.path.dirname (objfile), dotdots, pythondir) if not dir_ in sys.path: sys.path.insert(0, dir_) # Load the pretty-printers. from libstdcxx.v6.printers import register_libstdcxx_printers register_libstdcxx_printers (gdb.current_objfile ())