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      1 // Copyright 2012 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 
     29 // Tick Processor's code flow.
     30 
     31 function processArguments(args) {
     32   var processor = new ArgumentsProcessor(args);
     33   if (processor.parse()) {
     34     return processor.result();
     35   } else {
     36     processor.printUsageAndExit();
     37   }
     38 }
     39 
     40 function initSourceMapSupport() {
     41   // Pull dev tools source maps  into our name space.
     42   SourceMap = WebInspector.SourceMap;
     43 
     44   // Overwrite the load function to load scripts synchronously.
     45   SourceMap.load = function(sourceMapURL) {
     46     var content = readFile(sourceMapURL);
     47     var sourceMapObject = (JSON.parse(content));
     48     return new SourceMap(sourceMapURL, sourceMapObject);
     49   };
     50 }
     51 
     52 var entriesProviders = {
     53   'unix': UnixCppEntriesProvider,
     54   'windows': WindowsCppEntriesProvider,
     55   'mac': MacCppEntriesProvider
     56 };
     57 
     58 var params = processArguments(arguments);
     59 var sourceMap = null;
     60 if (params.sourceMap) {
     61   initSourceMapSupport();
     62   sourceMap = SourceMap.load(params.sourceMap);
     63 }
     64 var tickProcessor = new TickProcessor(
     65   new (entriesProviders[params.platform])(params.nm, params.targetRootFS),
     66   params.separateIc,
     67   params.callGraphSize,
     68   params.ignoreUnknown,
     69   params.stateFilter,
     70   params.distortion,
     71   params.range,
     72   sourceMap,
     73   params.timedRange,
     74   params.pairwiseTimedRange,
     75   params.onlySummary,
     76   params.runtimeTimerFilter);
     77 tickProcessor.processLogFile(params.logFileName);
     78 tickProcessor.printStatistics();
     79