1 | # -*- python -*- |
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2 | # Copyright (C) 2009, 2010 Free Software Foundation, Inc. |
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3 | |
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4 | # This program is free software; you can redistribute it and/or modify |
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5 | # it under the terms of the GNU General Public License as published by |
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6 | # the Free Software Foundation; either version 3 of the License, or |
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7 | # (at your option) any later version. |
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8 | # |
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9 | # This program is distributed in the hope that it will be useful, |
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10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | # GNU General Public License for more details. |
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13 | # |
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14 | # You should have received a copy of the GNU General Public License |
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15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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16 | |
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17 | import sys |
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18 | import gdb |
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19 | import os |
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20 | import os.path |
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21 | |
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22 | pythondir = '/usr/share/gcc-4.6.3/python' |
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23 | libdir = '/usr/lib' |
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24 | |
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25 | # This file might be loaded when there is no current objfile. This |
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26 | # can happen if the user loads it manually. In this case we don't |
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27 | # update sys.path; instead we just hope the user managed to do that |
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28 | # beforehand. |
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29 | if gdb.current_objfile () is not None: |
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30 | # Update module path. We want to find the relative path from libdir |
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31 | # to pythondir, and then we want to apply that relative path to the |
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32 | # directory holding the objfile with which this file is associated. |
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33 | # This preserves relocatability of the gcc tree. |
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34 | |
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35 | # Do a simple normalization that removes duplicate separators. |
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36 | pythondir = os.path.normpath (pythondir) |
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37 | libdir = os.path.normpath (libdir) |
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38 | |
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39 | prefix = os.path.commonprefix ([libdir, pythondir]) |
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40 | # In some bizarre configuration we might have found a match in the |
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41 | # middle of a directory name. |
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42 | if prefix[-1] != '/': |
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43 | prefix = os.path.dirname (prefix) + '/' |
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44 | |
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45 | # Strip off the prefix. |
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46 | pythondir = pythondir[len (prefix):] |
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47 | libdir = libdir[len (prefix):] |
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48 | |
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49 | # Compute the ".."s needed to get from libdir to the prefix. |
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50 | dotdots = ('..' + os.sep) * len (libdir.split (os.sep)) |
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51 | |
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52 | objfile = gdb.current_objfile ().filename |
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53 | dir_ = os.path.join (os.path.dirname (objfile), dotdots, pythondir) |
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54 | |
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55 | if not dir_ in sys.path: |
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56 | sys.path.insert(0, dir_) |
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57 | |
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58 | # Load the pretty-printers. |
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59 | from libstdcxx.v6.printers import register_libstdcxx_printers |
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60 | register_libstdcxx_printers (gdb.current_objfile ()) |
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