I backported contrib/repro_fail to google/gcc-4_6. The other google branches will get it when they start tracking trunk.
* repro_fail: New. diff --git a/contrib/repro_fail b/contrib/repro_fail new file mode 100755 index 0000000..8100456 --- /dev/null +++ b/contrib/repro_fail @@ -0,0 +1,82 @@ +#!/bin/bash -eu +# +# Script to reproduce a test failure from a dejagnu .log file. +# +# Contributed by Diego Novillo <dnovi...@google.com> +# +# Copyright (C) 2011 Free Software Foundation, Inc. +# +# This file is part of GCC. +# +# GCC 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, or (at your option) +# any later version. +# +# GCC 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 GCC; see the file COPYING. If not, write to +# the Free Software Foundation, 51 Franklin Street, Fifth Floor, +# Boston, MA 02110-1301, USA. + +# This script will search a line starting with 'spawn' that includes the +# pattern you are looking for (typically a source file name). +# +# Once it finds that pattern, it re-executes the whole command +# in the spawn line. If the pattern matches more than one spawn +# command, it asks which one you want. + +if [ $# -lt 2 ] ; then + echo "usage: $0 pattern file.log [additional-args]" + echo + echo "Finds the 'spawn' line matching PATTERN in FILE.LOG and executes" + echo "the command with any arguments in ADDITIONAL-ARGS." + echo + exit 1 +fi + +pattern="$1" +logf="$2" +shift 2 + +# Find the commands in LOGF that reference PATTERN. +lines=$(grep -E "^spawn .*$pattern" $logf | sed -e 's/^spawn //') +if [ -z "$lines" ] ; then + echo "Could not find a spawn command for pattern $pattern" + exit 1 +fi + +# Collect all the command lines into the COMMANDS array. +old_IFS="$IFS" +IFS=" " +num_lines=0 +for line in $lines ; do + num_lines=$[$num_lines + 1] + echo "[$num_lines] $line" + commands[$num_lines]=$line +done + +# If we found more than one line for PATTERN, ask which one we should run. +cmds_to_run='0' +if [ $num_lines -gt 1 ] ; then + echo + echo + echo -n "Enter the list of commands to run or '0' to run them all: " + read cmds_to_run +fi +if [ "$cmds_to_run" = "0" ] ; then + cmds_to_run=$(seq 1 $num_lines) +fi +IFS="$old_IFS" + +# Finally, execute all the commands we were told to execute. +for cmd_num in $cmds_to_run ; do + cmd=${commands[$cmd_num]} + set -x +e + $cmd "$@" + set +x -e +done