__longjmp.S 2.0 KB

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  1. /* longjmp for ARM.
  2. Copyright (C) 1997, 1998 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. #include <features.h>
  17. #define _SETJMP_H
  18. #define _ASM
  19. #include <bits/setjmp.h>
  20. .global __longjmp
  21. .type __longjmp,%function
  22. .align 2
  23. __longjmp:
  24. mov ip, r0 /* save jmp_buf pointer */
  25. movs r0, r1 /* get the return value in place */
  26. moveq r0, #1 /* can't let setjmp() return zero! */
  27. ldmia ip!, {v1-v6, sl, fp, sp, lr}
  28. #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
  29. #ifdef __VFP_FP__
  30. /* Restore the VFP registers. */
  31. /* Following instruction is fldmiax ip!, {d8-d15}. */
  32. ldc p11, cr8, [r12], #68
  33. /* Restore the floating-point status register. */
  34. ldr r1, [ip], #4
  35. /* Following instruction is fmxr fpscr, r1. */
  36. mcr p10, 7, r1, cr1, cr0, 0
  37. # elif defined __MAVERICK__
  38. cfldrd mvd4, [ip], #8 ; nop
  39. cfldrd mvd5, [ip], #8 ; nop
  40. cfldrd mvd6, [ip], #8 ; nop
  41. cfldrd mvd7, [ip], #8 ; nop
  42. cfldrd mvd8, [ip], #8 ; nop
  43. cfldrd mvd9, [ip], #8 ; nop
  44. cfldrd mvd10, [ip], #8 ; nop
  45. cfldrd mvd11, [ip], #8 ; nop
  46. cfldrd mvd12, [ip], #8 ; nop
  47. cfldrd mvd13, [ip], #8 ; nop
  48. cfldrd mvd14, [ip], #8 ; nop
  49. cfldrd mvd15, [ip], #8
  50. # else
  51. lfmfd f4, 4, [ip] ! /* load the floating point regs */
  52. # endif
  53. #endif
  54. mov pc, lr
  55. .size __longjmp,.-__longjmp
  56. libc_hidden_def(__longjmp)