v8/tools/jsfunfuzz/fuzz-harness.sh

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#!/bin/bash
# Copyright 2016 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# 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"
cd "$jsfunfuzz_dir"
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