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setjmp.h

setjmp.h 1.8 KB
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  1. /* Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    2. 

  2.    This file is part of the GNU C Library.
    3. 

  3. 

  4.    The GNU C Library is free software; you can redistribute it and/or
    5. 

  5.    modify it under the terms of the GNU Lesser General Public
    6. 

  6.    License as published by the Free Software Foundation; either
    7. 

  7.    version 2.1 of the License, or (at your option) any later version.
    8. 

  8. 

  9.    The GNU C Library is distributed in the hope that it will be useful,
    10. 

  10.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    11. 

  11.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    12. 

  12.    Lesser General Public License for more details.
    13. 

  13. 

  14.    You should have received a copy of the GNU Lesser General Public
    15. 

  15.    License along with the GNU C Library; if not, write to the Free
    16. 

  16.    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    17. 

  17.    02111-1307 USA.  */
    18. 

  18. 

  19. /* Define the machine-dependent type `jmp_buf'.  bfin version.  Lineo, Inc. 2001*/
    20. 

  20. #ifndef _BITS_SETJMP_H
    21. 

  21. #define _BITS_SETJMP_H	1
    22. 

  22. 

  23. #if !defined _SETJMP_H && !defined _PTHREAD_H
    24. 

  24. # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
    25. 

  25. #endif
    26. 

  26. 

  27. #ifndef _ASM
    28. 

  28. /* Jump buffer contains r7-r4, p5-p3, fp, sp and pc.  Other registers are not saved.  */
    29. 

  29. typedef struct
    30. 

  30. {
    31. 

  31. 	unsigned long __pregs[6];
    32. 

  32. 	unsigned long fp;
    33. 

  33. 	unsigned long sp;
    34. 

  34. 	unsigned long __rregs[8];
    35. 

  35. 	unsigned long astat;
    36. 

  36. 	unsigned long __lcregs[2];
    37. 

  37. 	unsigned long a0w;
    38. 

  38. 	unsigned long a0x;
    39. 

  39. 	unsigned long a1w;
    40. 

  40. 	unsigned long a1x;
    41. 

  41. 	unsigned long __iregs[4];
    42. 

  42. 	unsigned long __mregs[4];
    43. 

  43. 	unsigned long __lregs[4];
    44. 

  44. 	unsigned long __bregs[4];
    45. 

  45. 	unsigned long pc;
    46. 

  46. }__jmp_buf[1];
    47. 

  47. 

  48. #endif
    49. 

  49. 

  50. #define __JMP_BUF_SP	8
    51. 

  51. 

  52. /* Test if longjmp to JMPBUF would unwind the frame
    53. 

  53.    containing a local variable at ADDRESS.  */
    54. 

  54. #define _JMPBUF_UNWINDS(jmpbuf, address) \
    55. 

  55.   ((void *) (address) < (void *) (jmpbuf)->__pregs[6])
    56. 

  56. 

  57. #endif	/* bits/setjmp.h */
    58.