setjmp.h 1.8 KB

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  1. /* Define the machine-dependent type `jmp_buf'. Nios2 version.
  2. Copyright (C) 1992,93,95,97,2000 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. The GNU C Library is free software; you can redistribute it and/or
  5. modify it under the terms of the GNU Lesser General Public
  6. License as published by the Free Software Foundation; either
  7. version 2.1 of the License, or (at your option) any later version.
  8. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, write to the Free
  14. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  15. 02111-1307 USA. */
  16. #ifndef _SETJMP_H
  17. # error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
  18. #endif
  19. #ifndef _ASM
  20. typedef struct
  21. {
  22. /* Callee-saved registers r16 through r23. */
  23. unsigned long __regs[8];
  24. /* Program counter. */
  25. unsigned long __pc;
  26. /* Stack pointer. */
  27. unsigned long __sp;
  28. /* The frame pointer. */
  29. unsigned long __fp;
  30. /* The global pointer. */
  31. unsigned long __gp;
  32. /* floating point regs, if any */
  33. #if defined __HAVE_FPU__
  34. unsigned long __fpregs[64];
  35. #endif
  36. } __jmp_buf[1];
  37. #endif
  38. #define JB_REGS 0
  39. #define JB_PC 32
  40. #define JB_SP 36
  41. #define JB_FP 40
  42. #define JB_GP 44
  43. #define JB_FPREGS 48
  44. #if defined __HAVE_FPU__
  45. # define JB_SIZE 304
  46. #else
  47. # define JB_SIZE 48
  48. #endif
  49. /* Test if longjmp to JMPBUF would unwind the frame
  50. containing a local variable at ADDRESS. */
  51. #define _JMPBUF_UNWINDS(jmpbuf, address) \
  52. ((void *) (address) < (void*)(jmpbuf)->__sp)