1 | #! /bin/sh
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2 |
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3 | #
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4 | # Copyright (C) 2006-2010 Oracle Corporation
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5 | #
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6 | # This file is part of VirtualBox Open Source Edition (OSE), as
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7 | # available from http://www.virtualbox.org. This file is free software;
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8 | # you can redistribute it and/or modify it under the terms of the GNU
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9 | # General Public License (GPL) as published by the Free Software
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10 | # Foundation, in version 2 as it comes in the "COPYING" file of the
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11 | # VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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12 | # hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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13 | #
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14 |
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15 | #
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16 | # Compare undefined symbols in a shared or static object against a new-line
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17 | # separated list of grep patterns in a text file.
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18 | #
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19 | # Usage: /bin/sh <script name> <object> <allowed undefined symbols> [--static]
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20 | #
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21 | # Currently only works for native objects on Linux platforms
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22 | #
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23 |
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24 | echoerr()
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25 | {
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26 | echo $* 1>&2
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27 | }
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28 |
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29 | hostos=$1
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30 | target=$2
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31 | symbols=$3
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32 | static=$4
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33 |
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34 | if test $# -lt 3 || test $# -gt 4 || test ! -r "$target" || test ! -r "$symbols"; then
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35 | if test ! -r "$target"; then
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36 | echoerr "$0: '$target' not readable"
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37 | elif test ! -r "$symbols"; then
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38 | echoerr "$0: '$symbols' not readable"
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39 | else
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40 | echoerr "$0: Wrong number of arguments"
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41 | fi
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42 | args_ok="no"
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43 | fi
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44 |
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45 | if test $# -eq 4 && test "$static" != "--static"; then
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46 | args_ok="no"
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47 | fi
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48 |
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49 | if test "$args_ok" = "no"; then
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50 | echoerr "Usage: $0 <object> <allowed undefined symbols> [--static]"
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51 | exit 1
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52 | fi
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53 |
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54 | if test "$hostos" = "solaris"; then
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55 | objdumpbin=/usr/sfw/bin/gobjdump
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56 | grepbin=/usr/sfw/bin/ggrep
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57 | elif test "$hostos" = "linux"; then
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58 | objdumpbin=`which objdump`
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59 | grepbin=`which grep`
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60 | else
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61 | echoerr "$0: '$hostos' not a valid hostos string. supported 'linux' 'solaris'"
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62 | exit 1
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63 | fi
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64 |
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65 | command="-T"
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66 | if test "$static" = "--static"; then
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67 | command="-t"
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68 | fi
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69 |
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70 | if test ! -x "$objdumpbin"; then
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71 | echoerr "$0: '$objdumpbin' not found or not executable."
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72 | exit 1
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73 | fi
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74 |
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75 | undefined=`$objdumpbin $command $target | $grepbin '*UND*' | $grepbin -v -f $symbols | kmk_sed -e 's/^.*[[:blank:]]\(.*\)/\1/'`
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76 | num_undef=`echo $undefined | wc -w`
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77 |
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78 | if test $num_undef -ne 0; then
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79 | echoerr "$0: following symbols not defined in $symbols:"
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80 | echoerr "$undefined"
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81 | exit 1
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82 | fi
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83 | # Return code
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84 | exit 0
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85 |
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