v8/tools/fuzz-harness.sh
mstarzinger 651c1b86a2 [compiler] Make --debug-code the default in debug builds.
This enables {FLAG_debug_code} by default in debug builds. The advantage
is that generated code contained within the snapshot will contain such
debug code. Before we would only get coverage for these pieces with the
no-snapshot builds, which have a meager coverage. One can still pass the
inverse --no-debug-code flag to ensure generated code remains readable
within debug builds as well.

R=machenbach@chromium.org

Review-Url: https://codereview.chromium.org/2528913002
Cr-Commit-Position: refs/heads/master@{#41451}
2016-12-02 11:36:55 +00:00

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#!/bin/bash
# Copyright 2012 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# A simple harness that downloads and runs 'jsfunfuzz' against d8. This
# takes a long time because it runs many iterations and is intended for
# automated usage. The package containing 'jsfunfuzz' can be found as an
# attachment to this bug:
# https://bugzilla.mozilla.org/show_bug.cgi?id=jsfunfuzz
JSFUNFUZZ_URL="https://bugzilla.mozilla.org/attachment.cgi?id=310631"
JSFUNFUZZ_MD5="d0e497201c5cd7bffbb1cdc1574f4e32"
v8_root=$(readlink -f $(dirname $BASH_SOURCE)/../)
jsfunfuzz_dir="$v8_root/tools/jsfunfuzz"
if [ -n "$1" ]; then
d8="${v8_root}/$1"
else
d8="${v8_root}/d8"
fi
if [ ! -f "$d8" ]; then
echo "Failed to find d8 binary: $d8"
exit 1
fi
# Deprecated download method. A prepatched archive is downloaded as a hook
# if jsfunfuzz=1 is specified as a gyp flag. Requires google.com authentication
# for google storage.
if [ "$3" == "--download" ]; then
jsfunfuzz_file="$v8_root/tools/jsfunfuzz.zip"
if [ ! -f "$jsfunfuzz_file" ]; then
echo "Downloading $jsfunfuzz_file ..."
wget -q -O "$jsfunfuzz_file" $JSFUNFUZZ_URL || exit 1
fi
jsfunfuzz_sum=$(md5sum "$jsfunfuzz_file" | awk '{ print $1 }')
if [ $jsfunfuzz_sum != $JSFUNFUZZ_MD5 ]; then
echo "Failed to verify checksum!"
exit 1
fi
if [ ! -d "$jsfunfuzz_dir" ]; then
echo "Unpacking into $jsfunfuzz_dir ..."
unzip "$jsfunfuzz_file" -d "$jsfunfuzz_dir" || exit 1
echo "Patching runner ..."
cat << EOF | patch -s -p0 -d "$v8_root"
--- tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py~
+++ tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py
@@ -125,7 +125,7 @@
def many_timed_runs():
iteration = 0
- while True:
+ while iteration < 100:
iteration += 1
logfilename = "w%d" % iteration
one_timed_run(logfilename)
EOF
fi
fi
flags='--expose-gc --verify-gc'
python -u "$jsfunfuzz_dir/jsfunfuzz/multi_timed_run.py" 300 \
"$d8" $flags "$jsfunfuzz_dir/jsfunfuzz/jsfunfuzz.js"
exit_code=$(cat w* | grep " looking good" -c)
exit_code=$((100-exit_code))
if [ -n "$2" ]; then
archive="$2"
else
archive=fuzz-results-$(date +%Y%m%d%H%M%S).tar.bz2
fi
echo "Creating archive $archive"
tar -cjf $archive err-* w*
rm -f err-* w*
echo "Total failures: $exit_code"
exit $exit_code