Add an option to the tickprocessor to specify the directory for lib lookup

tools/tickprocessor.js

 // Copyright 2009 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
@@ skipping 590 matching lines @@
 
 CppEntriesProvider.prototype.loadSymbols = function(libName) {
 };
 
 
 CppEntriesProvider.prototype.parseNextLine = function() {
   return false;
 };
 
 
-function UnixCppEntriesProvider(nmExec) {
+function UnixCppEntriesProvider(nmExec, targetRootFS) {
   this.symbols = [];
   this.parsePos = 0;
   this.nmExec = nmExec;
+  this.targetRootFS = targetRootFS;
   this.FUNC_RE = /^([0-9a-fA-F]{8,16}) ([0-9a-fA-F]{8,16} )?[tTwW] (.*)$/;
 };
 inherits(UnixCppEntriesProvider, CppEntriesProvider);
 
 
 UnixCppEntriesProvider.prototype.loadSymbols = function(libName) {
   this.parsePos = 0;
+  libName = this.targetRootFS + libName;
   try {
     this.symbols = [
       os.system(this.nmExec, ['-C', '-n', '-S', libName], -1, -1),
       os.system(this.nmExec, ['-C', '-n', '-S', '-D', libName], -1, -1)
     ];
   } catch (e) {
     // If the library cannot be found on this system let's not panic.
     this.symbols = ['', ''];
   }
 };
@@ skipping 146 matching lines @@
     '--separate-ic': ['separateIc', true,
         'Separate IC entries'],
     '--unix': ['platform', 'unix',
         'Specify that we are running on *nix platform'],
     '--windows': ['platform', 'windows',
         'Specify that we are running on Windows platform'],
     '--mac': ['platform', 'mac',
         'Specify that we are running on Mac OS X platform'],
     '--nm': ['nm', 'nm',
         'Specify the \'nm\' executable to use (e.g. --nm=/my_dir/nm)'],
+    '--target': ['targetRootFS', '',
+        'Specify the target root directory for cross environment'],
     '--snapshot-log': ['snapshotLogFileName', 'snapshot.log',
         'Specify snapshot log file to use (e.g. --snapshot-log=snapshot.log)']
   };
   this.argsDispatch_['--js'] = this.argsDispatch_['-j'];
   this.argsDispatch_['--gc'] = this.argsDispatch_['-g'];
   this.argsDispatch_['--compiler'] = this.argsDispatch_['-c'];
   this.argsDispatch_['--other'] = this.argsDispatch_['-o'];
   this.argsDispatch_['--external'] = this.argsDispatch_['-e'];
 };
 
 
 ArgumentsProcessor.DEFAULTS = {
   logFileName: 'v8.log',
   snapshotLogFileName: null,
   platform: 'unix',
   stateFilter: null,
   callGraphSize: 5,
   ignoreUnknown: false,
   separateIc: false,
+  targetRootFS: '',
   nm: 'nm'
 };
 
 
 ArgumentsProcessor.prototype.parse = function() {
   while (this.args_.length) {
     var arg = this.args_[0];
     if (arg.charAt(0) != '-') {
       break;
     }
@@ skipping 45 matching lines @@
       if (arg !== synArg && dispatch === this.argsDispatch_[synArg]) {
         synonims.push(synArg);
         delete this.argsDispatch_[synArg];
       }
     }
     print('  ' + padRight(synonims.join(', '), 20) + dispatch[2]);
   }
   quit(2);
 };