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blackfin
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mcount.S

mcount.S 1.1 KB
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  1. /*
    2. 

  2.  * linux/arch/blackfin/mcount.S
    3. 

  3.  *
    4. 

  4.  * Copyright (C) 2006 Analog Devices Inc.
    5. 

  5.  *
    6. 

  6.  * 2007/04/12 Save index, length, modify and base registers. --rpm
    7. 

  7.  */
    8. 

  8. 

  9. #include <linux/linkage.h>
    10. 

  10. #include <asm/blackfin.h>
    11. 

  11. 

  12. .text
    13. 

  13. 

  14. .align 4 	/* just in case */
    15. 

  15. 

  16. ENTRY(__mcount)
    17. 

  17. 	[--sp] = i0;
    18. 

  18. 	[--sp] = i1;
    19. 

  19. 	[--sp] = i2;
    20. 

  20. 	[--sp] = i3;
    21. 

  21. 	[--sp] = l0;
    22. 

  22. 	[--sp] = l1;
    23. 

  23. 	[--sp] = l2;
    24. 

  24. 	[--sp] = l3;
    25. 

  25. 	[--sp] = m0;
    26. 

  26. 	[--sp] = m1;
    27. 

  27. 	[--sp] = m2;
    28. 

  28. 	[--sp] = m3;
    29. 

  29. 	[--sp] = b0;
    30. 

  30. 	[--sp] = b1;
    31. 

  31. 	[--sp] = b2;
    32. 

  32. 	[--sp] = b3;
    33. 

  33. 	[--sp] = ( r7:0, p5:0 );
    34. 

  34. 	[--sp] = ASTAT;
    35. 

  35. 

  36. 	p1.L = _ipipe_trace_enable;
    37. 

  37. 	p1.H = _ipipe_trace_enable;
    38. 

  38. 	r7 = [p1];
    39. 

  39. 	CC = r7 == 0;
    40. 

  40. 	if CC jump out;
    41. 

  41. 	link 0x10;
    42. 

  42. 	r0 = 0x0;
    43. 

  43. 	[sp + 0xc] = r0; /* v */
    44. 

  44. 	r0 = 0x0;	/* type: IPIPE_TRACE_FN */
    45. 

  45. 	r1 = rets;
    46. 

  46. 	p0 = [fp];	/* p0: Prior FP */
    47. 

  47. 	r2 = [p0 + 4];	/* r2: Prior RETS */
    48. 

  48. 	call ___ipipe_trace;
    49. 

  49. 	unlink;
    50. 

  50. out:
    51. 

  51. 	ASTAT = [sp++];
    52. 

  52. 	( r7:0, p5:0 ) = [sp++];
    53. 

  53. 	b3 = [sp++];
    54. 

  54. 	b2 = [sp++];
    55. 

  55. 	b1 = [sp++];
    56. 

  56. 	b0 = [sp++];
    57. 

  57. 	m3 = [sp++];
    58. 

  58. 	m2 = [sp++];
    59. 

  59. 	m1 = [sp++];
    60. 

  60. 	m0 = [sp++];
    61. 

  61. 	l3 = [sp++];
    62. 

  62. 	l2 = [sp++];
    63. 

  63. 	l1 = [sp++];
    64. 

  64. 	l0 = [sp++];
    65. 

  65. 	i3 = [sp++];
    66. 

  66. 	i2 = [sp++];
    67. 

  67. 	i1 = [sp++];
    68. 

  68. 	i0 = [sp++];
    69. 

  69. 	rts;
    70. 

  70. ENDPROC(__mcount)
    71.