bsd-_setjmp.S 1.5 KB

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  1. /* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. MIPS version.
  2. Copyright (C) 1996, 1997, 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, see
  14. <http://www.gnu.org/licenses/>. */
  15. /* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
  16. We cannot do it in C because it must be a tail-call, so frame-unwinding
  17. in setjmp doesn't clobber the state restored by longjmp. */
  18. #include <sys/regdef.h>
  19. #include <sys/asm.h>
  20. #ifdef __PIC__
  21. .option pic2
  22. #endif
  23. .text
  24. .global _setjmp
  25. .align 2;
  26. .ent _setjmp,0;
  27. .type _setjmp,@function
  28. _setjmp:
  29. #ifdef __PIC__
  30. #if (_MIPS_SIM == _MIPS_SIM_ABI32)
  31. .set noreorder
  32. .cpload t9
  33. .set reorder
  34. la t9, __sigsetjmp
  35. #else
  36. .cpsetup t9, v0, _setjmp
  37. PTR_LA t9, __sigsetjmp
  38. .cpreturn
  39. #endif
  40. #endif
  41. move a1,zero /* Pass a second argument of zero. */
  42. #ifdef __PIC__
  43. jr t9
  44. #else
  45. j __sigsetjmp
  46. #endif
  47. .end _setjmp;