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libc
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sysdeps
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linux
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nios2
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bits
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setjmp.h

setjmp.h 1.9 KB
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  1. /* Define the machine-dependent type `jmp_buf'.  Nios2 version.
    2. 

  2.    Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc.
    3. 

  3.    This file is part of the GNU C Library.
    4. 

  4. 

  5.    The GNU C Library is free software; you can redistribute it and/or
    6. 

  6.    modify it under the terms of the GNU Lesser General Public
    7. 

  7.    License as published by the Free Software Foundation; either
    8. 

  8.    version 2.1 of the License, or (at your option) any later version.
    9. 

  9. 

  10.    The GNU C Library is distributed in the hope that it will be useful,
    11. 

  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13. 

  13.    Lesser General Public License for more details.
    14. 

  14. 

  15.    You should have received a copy of the GNU Lesser General Public
    16. 

  16.    License along with the GNU C Library; if not, write to the Free
    17. 

  17.    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    18. 

  18.    02111-1307 USA.  */
    19. 

  19. 

  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. typedef struct
    29. 

  29. {
    30. 

  30.     /* Callee-saved registers r16 through r23.  */
    31. 

  31.     unsigned long __regs[8];
    32. 

  32. 

  33.     /* Program counter.  */
    34. 

  34.     unsigned long __pc;
    35. 

  35. 

  36.     /* Stack pointer.  */
    37. 

  37.     unsigned long __sp;
    38. 

  38. 

  39.     /* The frame pointer.  */
    40. 

  40.     unsigned long __fp;
    41. 

  41. 

  42.     /* The global pointer.  */
    43. 

  43.     unsigned long __gp;
    44. 

  44. 

  45. 	/* floating point regs, if any */
    46. 

  46. #if defined __HAVE_FPU__
    47. 

  47.     unsigned long __fpregs[64];
    48. 

  48. #endif	
    49. 

  49. } __jmp_buf[1];
    50. 

  50. 

  51. #endif
    52. 

  52. 

  53. #define JB_REGS		0
    54. 

  54. #define JB_PC		32
    55. 

  55. #define JB_SP		36
    56. 

  56. #define JB_FP		40
    57. 

  57. #define JB_GP		44
    58. 

  58. #define JB_FPREGS 	48
    59. 

  59. 

  60. #if defined __HAVE_FPU__
    61. 

  61. # define JB_SIZE 304
    62. 

  62. #else
    63. 

  63. # define JB_SIZE 48
    64. 

  64. #endif
    65. 

  65. 

  66. 

  67. /* Test if longjmp to JMPBUF would unwind the frame
    68. 

  68.    containing a local variable at ADDRESS.  */
    69. 

  69. #define _JMPBUF_UNWINDS(jmpbuf, address) \
    70. 

  70.   ((void *) (address) < (void*)(jmpbuf)->__sp)
    71. 

  71. 

  72. #endif	/* bits/setjmp.h */
    73.