# -*- python -*-
# Copyright (C) 2009 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 = '@pythondir@'
libdir = '@toolexeclibdir@'

# 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.join (*['/'] + pythondir.split (os.sep))
libdir = os.path.join (*['/'] + libdir.split (os.sep))

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 ())