syscall.S 1.5 KB

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  1. /* Copyright (C) 1996, 1997 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. #include <features.h>
  16. #include <asm/asm.h>
  17. #include <asm/regdef.h>
  18. #ifdef __PIC__
  19. .option pic2
  20. #endif
  21. .text
  22. .align 2
  23. .globl syscall
  24. .type syscall,@function
  25. .ent syscall
  26. syscall:
  27. move v0, a0 /* Load system call number from first arg. */
  28. move a0, a1 /* Move the next three args up a register. */
  29. move a1, a2
  30. move a2, a3
  31. /* Load the remaining possible args (up to 11) from the stack. */
  32. #ifdef __mips64
  33. ld t0,4*8(sp)
  34. ld t1,5*8(sp)
  35. ld t2,6*8(sp)
  36. ld t3,7*8(sp)
  37. ld t4,8*8(sp)
  38. ld t5,9*8(sp)
  39. ld t6,10*8(sp)
  40. #else
  41. lw t0,4*4(sp)
  42. lw t1,5*4(sp)
  43. lw t2,6*4(sp)
  44. lw t3,7*4(sp)
  45. lw t4,8*4(sp)
  46. lw t5,9*4(sp)
  47. lw t6,10*4(sp)
  48. #endif
  49. syscall /* Do the system call. */
  50. j ra /* Return to caller. */