setjmp.S 2.1 KB

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  1. /* Copyright (C) 1992, 1994, 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, see
  13. <http://www.gnu.org/licenses/>. */
  14. #include <jmpbuf-offsets.h>
  15. #define a0 $16
  16. .ent __sigsetjmp
  17. .global __sigsetjmp
  18. __sigsetjmp:
  19. ldgp $29, 0($27)
  20. $sigsetjmp_local:
  21. #ifndef __PIC__
  22. # define FRAME 16
  23. subq $30, FRAME, $30
  24. .frame $30, FRAME, $26, 0
  25. stq $26, 0($30)
  26. .mask 0x04000000, -FRAME
  27. #else
  28. # define FRAME 0
  29. .frame $30, FRAME, $26, 0
  30. #endif
  31. .prologue 1
  32. stq $9, JB_S0*8(a0)
  33. stq $10, JB_S1*8(a0)
  34. stq $11, JB_S2*8(a0)
  35. stq $12, JB_S3*8(a0)
  36. stq $13, JB_S4*8(a0)
  37. stq $14, JB_S5*8(a0)
  38. stq $26, JB_PC*8(a0)
  39. addq $30, FRAME, $1
  40. stq $1, JB_SP*8(a0)
  41. stq $15, JB_FP*8(a0)
  42. stt $f2, JB_F2*8(a0)
  43. stt $f3, JB_F3*8(a0)
  44. stt $f4, JB_F4*8(a0)
  45. stt $f5, JB_F5*8(a0)
  46. stt $f6, JB_F6*8(a0)
  47. stt $f7, JB_F7*8(a0)
  48. stt $f8, JB_F8*8(a0)
  49. stt $f9, JB_F9*8(a0)
  50. #ifndef __PIC__
  51. /* Call to C to (potentially) save our signal mask. */
  52. jsr $26, __sigjmp_save
  53. ldq $26, 0($30)
  54. addq $30, 16, $30
  55. ret
  56. #else
  57. /* Tailcall to save the signal mask. */
  58. br $31, __sigjmp_save !samegp
  59. #endif
  60. .end __sigsetjmp
  61. /* Put these traditional entry points in the same file so that we can
  62. elide much of the nonsense in trying to jmp to the real function. */
  63. .globl _setjmp;
  64. .align 3;
  65. .ent _setjmp , 0;
  66. _setjmp:
  67. ldgp $29, 0($27)
  68. mov 0, $17
  69. br $sigsetjmp_local
  70. .end _setjmp
  71. .globl setjmp;
  72. .align 3;
  73. .ent setjmp , 0;
  74. setjmp:
  75. ldgp $29, 0($27)
  76. mov 1, $17
  77. br $sigsetjmp_local
  78. .end setjmp