ppc_setjmp.S 1.9 KB

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  1. /* setjmp for PowerPC.
  2. Copyright (C) 1995, 1996, 1997, 1999, 2000 Free Software Foundation, Inc.
  3. This file is part of the GNU C Library.
  4. * SPDX-License-Identifier: LGPL-2.1+
  5. */
  6. #include <ppc_asm.tmpl>
  7. # define JB_GPR1 0 /* Also known as the stack pointer */
  8. # define JB_GPR2 1
  9. # define JB_LR 2 /* The address we will return to */
  10. # define JB_GPRS 3 /* GPRs 14 through 31 are saved, 18 in total */
  11. # define JB_CR 21 /* Condition code registers. */
  12. # define JB_FPRS 22 /* FPRs 14 through 31 are saved, 18*2 words total */
  13. # define JB_SIZE (58*4)
  14. #define FP(x...) x
  15. .globl setctxsp;
  16. setctxsp:
  17. mr r1, r3
  18. blr
  19. .globl ppc_setjmp;
  20. ppc_setjmp:
  21. stw r1,(JB_GPR1*4)(3)
  22. mflr r0
  23. stw r2,(JB_GPR2*4)(3)
  24. stw r14,((JB_GPRS+0)*4)(3)
  25. FP( stfd 14,((JB_FPRS+0*2)*4)(3))
  26. stw r0,(JB_LR*4)(3)
  27. stw r15,((JB_GPRS+1)*4)(3)
  28. FP( stfd 15,((JB_FPRS+1*2)*4)(3))
  29. mfcr r0
  30. stw r16,((JB_GPRS+2)*4)(3)
  31. FP( stfd 16,((JB_FPRS+2*2)*4)(3))
  32. stw r0,(JB_CR*4)(3)
  33. stw r17,((JB_GPRS+3)*4)(3)
  34. FP( stfd 17,((JB_FPRS+3*2)*4)(3))
  35. stw r18,((JB_GPRS+4)*4)(3)
  36. FP( stfd 18,((JB_FPRS+4*2)*4)(3))
  37. stw r19,((JB_GPRS+5)*4)(3)
  38. FP( stfd 19,((JB_FPRS+5*2)*4)(3))
  39. stw r20,((JB_GPRS+6)*4)(3)
  40. FP( stfd 20,((JB_FPRS+6*2)*4)(3))
  41. stw r21,((JB_GPRS+7)*4)(3)
  42. FP( stfd 21,((JB_FPRS+7*2)*4)(3))
  43. stw r22,((JB_GPRS+8)*4)(3)
  44. FP( stfd 22,((JB_FPRS+8*2)*4)(3))
  45. stw r23,((JB_GPRS+9)*4)(3)
  46. FP( stfd 23,((JB_FPRS+9*2)*4)(3))
  47. stw r24,((JB_GPRS+10)*4)(3)
  48. FP( stfd 24,((JB_FPRS+10*2)*4)(3))
  49. stw r25,((JB_GPRS+11)*4)(3)
  50. FP( stfd 25,((JB_FPRS+11*2)*4)(3))
  51. stw r26,((JB_GPRS+12)*4)(3)
  52. FP( stfd 26,((JB_FPRS+12*2)*4)(3))
  53. stw r27,((JB_GPRS+13)*4)(3)
  54. FP( stfd 27,((JB_FPRS+13*2)*4)(3))
  55. stw r28,((JB_GPRS+14)*4)(3)
  56. FP( stfd 28,((JB_FPRS+14*2)*4)(3))
  57. stw r29,((JB_GPRS+15)*4)(3)
  58. FP( stfd 29,((JB_FPRS+15*2)*4)(3))
  59. stw r30,((JB_GPRS+16)*4)(3)
  60. FP( stfd 30,((JB_FPRS+16*2)*4)(3))
  61. stw r31,((JB_GPRS+17)*4)(3)
  62. FP( stfd 31,((JB_FPRS+17*2)*4)(3))
  63. li 3, 0
  64. blr