Subversion Repositories HelenOS-historic

Rev

Rev 534 | Rev 1078 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log | Download | RSS feed

  1. /*
  2.  * Copyright (C) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT 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 OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. #ifndef __ia64_FADDR_H__
  30. #define __ia64_FADDR_H__
  31.  
  32. #include <arch/types.h>
  33.  
  34. static __address FADDR(void (* fptr)(void));
  35.  
  36. /**
  37.  *
  38.  * Calculate absolute address of function
  39.  * referenced by fptr pointer.
  40.  *
  41.  * @param fptr Function pointer.
  42.  *
  43.  */
  44. inline __address FADDR(void (* fptr)(void)) {
  45.     __address faddr;
  46.    
  47.     __asm__(
  48.         "nop 0;;"
  49.         "nop 0;;"
  50.         "nop 0;;"
  51.         "nop 0;;"
  52.         "nop 0;;"
  53.         "nop 0;;"
  54.         "nop 0;;"
  55.         "nop 0;;"
  56.         "ld8 %0 = [%1]\n\t"
  57.         "nop 0;;"
  58.         "nop 0;;"
  59.         "nop 0;;"
  60.         "nop 0;;"
  61.         "nop 0;;"
  62.         "nop 0;;"
  63.         "nop 0;;"
  64.         "nop 0;;"
  65.  
  66.         : "=r" (faddr)
  67.         : "r" (fptr)
  68.     );
  69.    
  70.  
  71.     /*faddr = *((__address *)(fptr));;*/
  72.     return faddr;
  73. }
  74.  
  75. #endif
  76.