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62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
# -*- python -*-
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# Copyright (C) 2009-2020 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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import gdb
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import os
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import os.path
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pythondir = '@pythondir@'
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libdir = '@toolexeclibdir@'
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# This file might be loaded when there is no current objfile. This
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# can happen if the user loads it manually. In this case we don't
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# update sys.path; instead we just hope the user managed to do that
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# beforehand.
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if gdb.current_objfile () is not None:
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# Update module path. We want to find the relative path from libdir
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# to pythondir, and then we want to apply that relative path to the
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# directory holding the objfile with which this file is associated.
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# This preserves relocatability of the gcc tree.
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# Do a simple normalization that removes duplicate separators.
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pythondir = os.path.normpath (pythondir)
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libdir = os.path.normpath (libdir)
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prefix = os.path.commonprefix ([libdir, pythondir])
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# In some bizarre configuration we might have found a match in the
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# middle of a directory name.
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if prefix[-1] != '/':
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prefix = os.path.dirname (prefix) + '/'
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# Strip off the prefix.
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pythondir = pythondir[len (prefix):]
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libdir = libdir[len (prefix):]
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# Compute the ".."s needed to get from libdir to the prefix.
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dotdots = ('..' + os.sep) * len (libdir.split (os.sep))
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objfile = gdb.current_objfile ().filename
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dir_ = os.path.join (os.path.dirname (objfile), dotdots, pythondir)
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if not dir_ in sys.path:
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sys.path.insert(0, dir_)
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# Call a function as a plain import would not execute body of the included file
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# on repeated reloads of this object file.
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from libstdcxx.v6 import register_libstdcxx_printers
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register_libstdcxx_printers(gdb.current_objfile())
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