Implement shared libraries logging on Mac OS X, added required support in Tick Processor.

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 402 matching lines @@
 
 CppEntriesProvider.prototype.parseNextLine = function() {
   return false;
 };
 
 
 function UnixCppEntriesProvider(nmExec) {
   this.symbols = [];
   this.parsePos = 0;
   this.nmExec = nmExec;
+  this.FUNC_RE = /^([0-9a-fA-F]{8}) [tTwW] (.*)$/;
 };
 inherits(UnixCppEntriesProvider, CppEntriesProvider);
 
 
-UnixCppEntriesProvider.FUNC_RE = /^([0-9a-fA-F]{8}) [tTwW] (.*)$/;
-
-
 UnixCppEntriesProvider.prototype.loadSymbols = function(libName) {
   this.parsePos = 0;
   try {
     this.symbols = [
       os.system(this.nmExec, ['-C', '-n', libName], -1, -1),
       os.system(this.nmExec, ['-C', '-n', '-D', libName], -1, -1)
     ];
   } catch (e) {
     // If the library cannot be found on this system let's not panic.
     this.symbols = ['', ''];
   }
 };
 
 
 UnixCppEntriesProvider.prototype.parseNextLine = function() {
   if (this.symbols.length == 0) {
     return false;
   }
   var lineEndPos = this.symbols[0].indexOf('\n', this.parsePos);
   if (lineEndPos == -1) {
     this.symbols.shift();
     this.parsePos = 0;
     return this.parseNextLine();
   }
 
   var line = this.symbols[0].substring(this.parsePos, lineEndPos);
   this.parsePos = lineEndPos + 1;
-  var fields = line.match(UnixCppEntriesProvider.FUNC_RE);
+  var fields = line.match(this.FUNC_RE);
   return fields ? { name: fields[2], start: parseInt(fields[1], 16) } : null;
 };
 
 
+function MacCppEntriesProvider(nmExec) {
+  UnixCppEntriesProvider.call(this, nmExec);
+  this.FUNC_RE = /^([0-9a-fA-F]{8}) [iItT] (.*)$/;
+};
+inherits(MacCppEntriesProvider, UnixCppEntriesProvider);
+
+
+MacCppEntriesProvider.prototype.loadSymbols = function(libName) {
+  this.parsePos = 0;
+  try {
+    this.symbols = [os.system(this.nmExec, ['-n', '-f', libName], -1, -1), ''];
+  } catch (e) {
+    // If the library cannot be found on this system let's not panic.
+    this.symbols = '';
+  }
+};
+
+
 function WindowsCppEntriesProvider() {
   this.symbols = '';
   this.parsePos = 0;
 };
 inherits(WindowsCppEntriesProvider, CppEntriesProvider);
 
 
 WindowsCppEntriesProvider.FILENAME_RE = /^(.*)\.exe$/;
 
 
@@ skipping 59 matching lines @@
     '-e': ['stateFilter', TickProcessor.VmStates.EXTERNAL,
         'Show only ticks from EXTERNAL VM state'],
     '--ignore-unknown': ['ignoreUnknown', true,
         'Exclude ticks of unknown code entries from processing'],
     '--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)']
   };
   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'];
 };
 
@@ skipping 62 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);
 };