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      1 #!/bin/bash
      2 # Copyright 2016 the V8 project authors. All rights reserved.
      3 # Use of this source code is governed by a BSD-style license that can be
      4 # found in the LICENSE file.
      5 
      6 # A simple harness that downloads and runs 'jsfunfuzz' against d8. This
      7 # takes a long time because it runs many iterations and is intended for
      8 # automated usage. The package containing 'jsfunfuzz' can be found as an
      9 # attachment to this bug:
     10 # https://bugzilla.mozilla.org/show_bug.cgi?id=jsfunfuzz
     11 
     12 JSFUNFUZZ_URL="https://bugzilla.mozilla.org/attachment.cgi?id=310631"
     13 JSFUNFUZZ_MD5="d0e497201c5cd7bffbb1cdc1574f4e32"
     14 
     15 v8_root=$(readlink -f $(dirname $BASH_SOURCE)/../../)
     16 jsfunfuzz_dir="$v8_root/tools/jsfunfuzz"
     17 cd "$jsfunfuzz_dir"
     18 
     19 if [ -n "$1" ]; then
     20   d8="${v8_root}/$1"
     21 else
     22   d8="${v8_root}/d8"
     23 fi
     24 
     25 if [ ! -f "$d8" ]; then
     26   echo "Failed to find d8 binary: $d8"
     27   exit 1
     28 fi
     29 
     30 # Deprecated download method. A prepatched archive is downloaded as a hook
     31 # if jsfunfuzz=1 is specified as a gyp flag. Requires google.com authentication
     32 # for google storage.
     33 if [ "$3" == "--download" ]; then
     34 
     35   jsfunfuzz_file="$v8_root/tools/jsfunfuzz.zip"
     36   if [ ! -f "$jsfunfuzz_file" ]; then
     37     echo "Downloading $jsfunfuzz_file ..."
     38     wget -q -O "$jsfunfuzz_file" $JSFUNFUZZ_URL || exit 1
     39   fi
     40 
     41   jsfunfuzz_sum=$(md5sum "$jsfunfuzz_file" | awk '{ print $1 }')
     42   if [ $jsfunfuzz_sum != $JSFUNFUZZ_MD5 ]; then
     43     echo "Failed to verify checksum!"
     44     exit 1
     45   fi
     46 
     47   if [ ! -d "$jsfunfuzz_dir" ]; then
     48     echo "Unpacking into $jsfunfuzz_dir ..."
     49     unzip "$jsfunfuzz_file" -d "$jsfunfuzz_dir" || exit 1
     50     echo "Patching runner ..."
     51     cat << EOF | patch -s -p0 -d "$v8_root"
     52 --- tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py~
     53 +++ tools/jsfunfuzz/jsfunfuzz/multi_timed_run.py
     54 @@ -125,7 +125,7 @@
     55  
     56  def many_timed_runs():
     57      iteration = 0
     58 -    while True:
     59 +    while iteration < 100:
     60          iteration += 1
     61          logfilename = "w%d" % iteration
     62          one_timed_run(logfilename)
     63 EOF
     64   fi
     65 
     66 fi
     67 
     68 flags='--debug-code --expose-gc --verify-gc'
     69 python -u "$jsfunfuzz_dir/jsfunfuzz/multi_timed_run.py" 300 \
     70     "$d8" $flags "$jsfunfuzz_dir/jsfunfuzz/jsfunfuzz.js"
     71 exit_code=$(cat w* | grep " looking good" -c)
     72 exit_code=$((100-exit_code))
     73 
     74 if [ -n "$2" ]; then
     75   archive="$2"
     76 else
     77   archive=fuzz-results-$(date +%Y%m%d%H%M%S).tar.bz2
     78 fi
     79 echo "Creating archive $archive"
     80 tar -cjf $archive err-* w*
     81 rm -f err-* w*
     82 
     83 echo "Total failures: $exit_code"
     84 exit $exit_code
     85