setjmp.h 2.3 KB

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  1. /* Copyright (C) 1997,1999,2000,2003 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. #ifndef _BITS_SETJMP_H
  16. #define _BITS_SETJMP_H 1
  17. #if !defined _SETJMP_H && !defined _PTHREAD_H
  18. # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  19. #endif
  20. #include <bits/wordsize.h>
  21. #if 0 /*__WORDSIZE == 64*/
  22. #ifndef _ASM
  23. typedef struct __sparc64_jmp_buf
  24. {
  25. struct __sparc64_jmp_buf *uc_link;
  26. unsigned long uc_flags;
  27. unsigned long uc_sigmask;
  28. struct __sparc64_jmp_buf_mcontext
  29. {
  30. unsigned long mc_gregs[19];
  31. unsigned long mc_fp;
  32. unsigned long mc_i7;
  33. struct __sparc64_jmp_buf_fpu
  34. {
  35. union
  36. {
  37. unsigned int sregs[32];
  38. unsigned long dregs[32];
  39. long double qregs[16];
  40. } mcfpu_fpregs;
  41. unsigned long mcfpu_fprs;
  42. unsigned long mcfpu_gsr;
  43. void *mcfpu_fq;
  44. unsigned char mcfpu_qcnt;
  45. unsigned char mcfpu_qentsz;
  46. unsigned char mcfpu_enab;
  47. } mc_fpregs;
  48. } uc_mcontext;
  49. } __jmp_buf[1];
  50. #endif
  51. /* Test if longjmp to JMPBUF would unwind the frame
  52. containing a local variable at ADDRESS. */
  53. #define _JMPBUF_UNWINDS(jmpbuf, address) \
  54. ((unsigned long int) (address) < (jmpbuf)->uc_mcontext.mc_fp)
  55. #else
  56. #if defined __USE_MISC || defined _ASM
  57. # define JB_SP 0
  58. # define JB_FP 1
  59. # define JB_PC 2
  60. #endif
  61. #ifndef _ASM
  62. typedef int __jmp_buf[3];
  63. #endif
  64. /* Test if longjmp to JMPBUF would unwind the frame
  65. containing a local variable at ADDRESS. */
  66. #define _JMPBUF_UNWINDS(jmpbuf, address) \
  67. ((int) (address) < (jmpbuf)[JB_SP])
  68. #endif
  69. #endif /* bits/setjmp.h */