gcc/libstdc++-v3/python/hook.in
Tom Tromey 35204bbe76 re PR libstdc++/40289 (share/libstdc++/python/ pollutes common namespace)
PR libstdc++/40289:
	* python/Makefile.in: Rebuild.
	* python/hook.in: Compute module path relative to objfile.
	* python/Makefile.am (pythondir): Redefine.
	(gdb.py): Subst toolexeclibdir.
	(install-data-local): Rewrite.

From-SVN: r148357
2009-06-10 22:58:22 +00:00

56 lines
1.9 KiB
Python

# -*- 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 ())