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1 #!/bin/bash -eu
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2 #
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3 # Script to reproduce a test failure from a dejagnu .log file.
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4 #
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5 # Contributed by Diego Novillo <dnovillo@google.com>
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6 #
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7 # Copyright (C) 2011, 2012, 2013 Free Software Foundation, Inc.
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8 #
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9 # This file is part of GCC.
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10 #
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11 # GCC is free software; you can redistribute it and/or modify
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12 # it under the terms of the GNU General Public License as published by
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13 # the Free Software Foundation; either version 3, or (at your option)
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14 # any later version.
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15 #
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16 # GCC is distributed in the hope that it will be useful,
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17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 # GNU General Public License for more details.
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20 #
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21 # You should have received a copy of the GNU General Public License
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22 # along with GCC; see the file COPYING. If not, write to
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23 # the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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24 # Boston, MA 02110-1301, USA.
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25
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26 # This script will search a line starting with 'spawn' that includes the
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27 # pattern you are looking for (typically a source file name).
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28 #
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29 # Once it finds that pattern, it re-executes the whole command
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30 # in the spawn line. If the pattern matches more than one spawn
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31 # command, it asks which one you want.
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32
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33 if [ $# -lt 2 ] ; then
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34 echo "usage: $0 [--debug|--debug-tui] pattern file.log [additional-args]"
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35 echo
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36 echo "Finds the 'spawn' line matching PATTERN in FILE.LOG and executes"
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37 echo "the command with any arguments in ADDITIONAL-ARGS."
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38 echo
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39 echo "If --debug is used, the compiler is invoked with -wrapper gdb,--args"
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40 echo "If --debug-tui is used, the compiler is invoked with -wrapper "\
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41 "gdb,--tui,--args"
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42 exit 1
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43 fi
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44
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45 if [ "$1" == "--debug" ] ; then
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46 debug_args="-wrapper gdb,--args"
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47 shift
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48 elif [ "$1" == "--debug-tui" ] ; then
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49 debug_args="-wrapper gdb,--tui,--args"
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50 shift
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51 else
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52 debug_args=""
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53 fi
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54 pattern="$1"
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55 logf="$2"
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56 shift 2
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57
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58 # Find the commands in LOGF that reference PATTERN.
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59 lines=$(grep -E "^spawn .*$pattern" $logf \
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60 | sed -e 's/^spawn -ignore SIGHUP //' \
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61 | sed -e 's/^spawn //')
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62 if [ -z "$lines" ] ; then
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63 echo "Could not find a spawn command for pattern $pattern"
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64 exit 1
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65 fi
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66
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67 # Collect all the command lines into the COMMANDS array.
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68 old_IFS="$IFS"
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69 IFS="
"
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70 num_lines=0
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71 for line in $lines ; do
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72 num_lines=$[$num_lines + 1]
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73 echo "[$num_lines] $line"
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74 commands[$num_lines]=$line
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75 done
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76
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77 # If we found more than one line for PATTERN, ask which one we should run.
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78 cmds_to_run='0'
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79 if [ $num_lines -gt 1 ] ; then
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80 echo
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81 echo
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82 echo -n "Enter the list of commands to run or '0' to run them all: "
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83 read cmds_to_run
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84 fi
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85 if [ "$cmds_to_run" = "0" ] ; then
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86 cmds_to_run=$(seq 1 $num_lines)
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87 fi
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88 IFS="$old_IFS"
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89
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90 # Finally, execute all the commands we were told to execute.
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91 for cmd_num in $cmds_to_run ; do
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92 cmd=${commands[$cmd_num]}
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93 set -x +e
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94 $cmd $debug_args "$@"
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95 set +x -e
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96 done
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