syscall.S 1.5 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061
  1. /* Copyright (C) 2001, 2003, 2004 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 Library General Public License as
  5. published by the Free Software Foundation; either version 2 of the
  6. 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. Library General Public License for more details.
  11. You should have received a copy of the GNU Library General Public
  12. License along with the GNU C Library; see the file COPYING.LIB. If not,
  13. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14. Boston, MA 02111-1307, USA. */
  15. #include "sysdep.h"
  16. .syntax no_register_prefix
  17. /* Make syscall (callno, ...) into a system call. */
  18. ENTRY (syscall)
  19. #ifdef __arch_v32
  20. subq 4,sp
  21. move.d r10,r9
  22. move srp,[sp]
  23. addoq 8,sp,acr
  24. move.d r11,r10
  25. move [acr],mof
  26. addoq 12,sp,acr
  27. move.d r12,r11
  28. move [acr],srp
  29. addoq 4,sp,acr
  30. move.d r13,r12
  31. move.d [acr],r13
  32. break 13
  33. cmps.w -4096,r10
  34. bhs 0f
  35. move [sp+],srp
  36. Ret
  37. nop
  38. #else
  39. push srp
  40. move.d r10,r9
  41. move.d r11,r10
  42. move.d r12,r11
  43. move.d r13,r12
  44. move.d [sp+4],r13
  45. move [sp+8],mof
  46. move [sp+12],srp
  47. break 13
  48. cmps.w -4096,r10
  49. bhs 0f
  50. pop srp
  51. Ret
  52. nop
  53. #endif
  54. PSEUDO_END (syscall)