/js/src/methodjit/TrampolineCompiler.h

http://github.com/zpao/v8monkey · C Header · 81 lines · 28 code · 13 blank · 40 comment · 3 complexity · 96dc72c9889f5e24be938e9ede6439e6 MD5 · raw file

  1. /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  2. * vim: set ts=4 sw=4 et tw=99:
  3. *
  4. * ***** BEGIN LICENSE BLOCK *****
  5. * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  6. *
  7. * The contents of this file are subject to the Mozilla Public License Version
  8. * 1.1 (the "License"); you may not use this file except in compliance with
  9. * the License. You may obtain a copy of the License at
  10. * http://www.mozilla.org/MPL/
  11. *
  12. * Software distributed under the License is distributed on an "AS IS" basis,
  13. * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  14. * for the specific language governing rights and limitations under the
  15. * License.
  16. *
  17. * The Original Code is Mozilla Jaegermonkey.
  18. *
  19. * The Initial Developer of the Original Code is the Mozilla Foundation.
  20. *
  21. * Portions created by the Initial Developer are Copyright (C) 2010
  22. * the Initial Developer. All Rights Reserved.
  23. *
  24. * Contributor(s):
  25. * Andrew Drake <drakedevel@gmail.com>
  26. *
  27. * Alternatively, the contents of this file may be used under the terms of
  28. * either the GNU General Public License Version 2 or later (the "GPL"), or
  29. * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  30. * in which case the provisions of the GPL or the LGPL are applicable instead
  31. * of those above. If you wish to allow use of your version of this file only
  32. * under the terms of either the GPL or the LGPL, and not to allow others to
  33. * use your version of this file under the terms of the MPL, indicate your
  34. * decision by deleting the provisions above and replace them with the notice
  35. * and other provisions required by the GPL or the LGPL. If you do not delete
  36. * the provisions above, a recipient may use your version of this file under
  37. * the terms of any one of the MPL, the GPL or the LGPL.
  38. *
  39. * ***** END LICENSE BLOCK ***** */
  40. #if !defined trampolines_h__ && defined JS_METHODJIT
  41. #define trampolines_h__
  42. #include "assembler/jit/ExecutableAllocator.h"
  43. #include "methodjit/CodeGenIncludes.h"
  44. namespace js {
  45. namespace mjit {
  46. class TrampolineCompiler
  47. {
  48. typedef bool (*TrampolineGenerator)(Assembler &masm);
  49. public:
  50. TrampolineCompiler(JSC::ExecutableAllocator *alloc, Trampolines *tramps)
  51. : execAlloc(alloc), trampolines(tramps)
  52. { }
  53. bool compile();
  54. static void release(Trampolines *tramps);
  55. private:
  56. bool compileTrampoline(Trampolines::TrampolinePtr *where, JSC::ExecutablePool **pool,
  57. TrampolineGenerator generator);
  58. /* Generators for trampolines. */
  59. static bool generateForceReturn(Assembler &masm);
  60. #if (defined(JS_NO_FASTCALL) && defined(JS_CPU_X86)) || defined(_WIN64)
  61. static bool generateForceReturnFast(Assembler &masm);
  62. #endif
  63. JSC::ExecutableAllocator *execAlloc;
  64. Trampolines *trampolines;
  65. };
  66. } /* namespace mjit */
  67. } /* namespace js */
  68. #endif