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__longjmp.S

__longjmp.S 2.0 KB
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  1. /* longjmp for ARM.
    2. 

  2.    Copyright (C) 1997, 1998 Free Software Foundation, Inc.
    3. 

  3.    This file is part of the GNU C Library.
    4. 

  4. 

  5.    The GNU C Library is free software; you can redistribute it and/or
    6. 

  6.    modify it under the terms of the GNU Lesser General Public
    7. 

  7.    License as published by the Free Software Foundation; either
    8. 

  8.    version 2.1 of the License, or (at your option) any later version.
    9. 

  9. 

  10.    The GNU C Library is distributed in the hope that it will be useful,
    11. 

  11.    but WITHOUT ANY WARRANTY; without even the implied warranty of
    12. 

  12.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13. 

  13.    Lesser General Public License for more details.
    14. 

  14. 

  15.    You should have received a copy of the GNU Lesser General Public
    16. 

  16.    License along with the GNU C Library; if not, write to the Free
    17. 

  17.    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
    18. 

  18.    02111-1307 USA.  */
    19. 

  19. 

  20. #include <features.h>
    21. 

  21. #define _SETJMP_H
    22. 

  22. #define _ASM
    23. 

  23. #include <bits/setjmp.h>
    24. 

  24. 

  25. 

  26. .global __longjmp
    27. 

  27. .type __longjmp,%function
    28. 

  28. .align 2
    29. 

  29. __longjmp:
    30. 

  30. 	mov	ip, r0		/* save jmp_buf pointer */
    31. 

  31. 	
    32. 

  32. 	movs	r0, r1		/* get the return value in place */
    33. 

  33. 	moveq	r0, #1		/* can't let setjmp() return zero! */
    34. 

  34. 

  35. 	ldmia     ip!,  {v1-v6, sl, fp, sp, lr}
    36. 

  36. 

  37. #if defined __UCLIBC_HAS_FLOATS__ && ! defined __UCLIBC_HAS_SOFT_FLOAT__
    38. 

  38. #ifdef __VFP_FP__
    39. 

  39. 	/* Restore the VFP registers.  */
    40. 

  40. 	/* Following instruction is fldmiax ip!, {d8-d15}.  */
    41. 

  41. 	ldc	p11, cr8, [r12], #68
    42. 

  42. 	/* Restore the floating-point status register.  */
    43. 

  43. 	ldr     r1, [ip], #4
    44. 

  44. 	/* Following instruction is fmxr fpscr, r1.  */
    45. 

  45. 	mcr	p10, 7, r1, cr1, cr0, 0
    46. 

  46. # elif defined __MAVERICK__
    47. 

  47. 	cfldrd	mvd4,  [ip], #8 ; nop
    48. 

  48. 	cfldrd	mvd5,  [ip], #8 ; nop
    49. 

  49. 	cfldrd	mvd6,  [ip], #8 ; nop
    50. 

  50. 	cfldrd	mvd7,  [ip], #8 ; nop
    51. 

  51. 	cfldrd	mvd8,  [ip], #8 ; nop
    52. 

  52. 	cfldrd	mvd9,  [ip], #8 ; nop
    53. 

  53. 	cfldrd	mvd10, [ip], #8 ; nop
    54. 

  54. 	cfldrd	mvd11, [ip], #8 ; nop
    55. 

  55. 	cfldrd	mvd12, [ip], #8 ; nop
    56. 

  56. 	cfldrd	mvd13, [ip], #8 ; nop
    57. 

  57. 	cfldrd	mvd14, [ip], #8 ; nop
    58. 

  58. 	cfldrd	mvd15, [ip], #8
    59. 

  59. # else
    60. 

  60. 	lfmfd	f4, 4, [ip] !	/* load the floating point regs */
    61. 

  61. # endif
    62. 

  62. #endif	
    63. 

  63. 

  64. 	mov pc, lr
    65. 

  65. 

  66. .size __longjmp,.-__longjmp
    67. 

  67. libc_hidden_def(__longjmp)
    68.