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dasm_proto.h

dasm_proto.h 2.0 KB
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  1. /*
    2. 

  2. ** DynASM encoding engine prototypes.
    3. 

  3. ** Copyright (C) 2005-2021 Mike Pall. All rights reserved.
    4. 

  4. ** Released under the MIT license. See dynasm.lua for full copyright notice.
    5. 

  5. */
    6. 

  6. 

  7. #ifndef _DASM_PROTO_H
    8. 

  8. #define _DASM_PROTO_H
    9. 

  9. 

  10. #include <stddef.h>
    11. 

  11. #include <stdarg.h>
    12. 

  12. 

  13. #define DASM_IDENT	"DynASM 1.5.0"
    14. 

  14. #define DASM_VERSION	10500	/* 1.5.0 */
    15. 

  15. 

  16. #ifndef Dst_DECL
    17. 

  17. #define Dst_DECL	dasm_State **Dst
    18. 

  18. #endif
    19. 

  19. 

  20. #ifndef Dst_REF
    21. 

  21. #define Dst_REF		(*Dst)
    22. 

  22. #endif
    23. 

  23. 

  24. #ifndef DASM_FDEF
    25. 

  25. #define DASM_FDEF	extern
    26. 

  26. #endif
    27. 

  27. 

  28. #ifndef DASM_M_GROW
    29. 

  29. #define DASM_M_GROW(ctx, t, p, sz, need) \
    30. 

  30.   do { \
    31. 

  31.     size_t _sz = (sz), _need = (need); \
    32. 

  32.     if (_sz < _need) { \
    33. 

  33.       if (_sz < 16) _sz = 16; \
    34. 

  34.       while (_sz < _need) _sz += _sz; \
    35. 

  35.       (p) = (t *)realloc((p), _sz); \
    36. 

  36.       if ((p) == NULL) exit(1); \
    37. 

  37.       (sz) = _sz; \
    38. 

  38.     } \
    39. 

  39.   } while(0)
    40. 

  40. #endif
    41. 

  41. 

  42. #ifndef DASM_M_FREE
    43. 

  43. #define DASM_M_FREE(ctx, p, sz)	free(p)
    44. 

  44. #endif
    45. 

  45. 

  46. /* Internal DynASM encoder state. */
    47. 

  47. typedef struct dasm_State dasm_State;
    48. 

  48. 

  49. 

  50. /* Initialize and free DynASM state. */
    51. 

  51. DASM_FDEF void dasm_init(Dst_DECL, int maxsection);
    52. 

  52. DASM_FDEF void dasm_free(Dst_DECL);
    53. 

  53. 

  54. /* Setup global array. Must be called before dasm_setup(). */
    55. 

  55. DASM_FDEF void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl);
    56. 

  56. 

  57. /* Grow PC label array. Can be called after dasm_setup(), too. */
    58. 

  58. DASM_FDEF void dasm_growpc(Dst_DECL, unsigned int maxpc);
    59. 

  59. 

  60. /* Setup encoder. */
    61. 

  61. DASM_FDEF void dasm_setup(Dst_DECL, const void *actionlist);
    62. 

  62. 

  63. /* Feed encoder with actions. Calls are generated by pre-processor. */
    64. 

  64. DASM_FDEF void dasm_put(Dst_DECL, int start, ...);
    65. 

  65. 

  66. /* Link sections and return the resulting size. */
    67. 

  67. DASM_FDEF int dasm_link(Dst_DECL, size_t *szp);
    68. 

  68. 

  69. /* Encode sections into buffer. */
    70. 

  70. DASM_FDEF int dasm_encode(Dst_DECL, void *buffer);
    71. 

  71. 

  72. /* Get PC label offset. */
    73. 

  73. DASM_FDEF int dasm_getpclabel(Dst_DECL, unsigned int pc);
    74. 

  74. 

  75. #ifdef DASM_CHECKS
    76. 

  76. /* Optional sanity checker to call between isolated encoding steps. */
    77. 

  77. DASM_FDEF int dasm_checkstep(Dst_DECL, int secmatch);
    78. 

  78. #else
    79. 

  79. #define dasm_checkstep(a, b)	0
    80. 

  80. #endif
    81. 

  81. 

  82. 

  83. #endif /* _DASM_PROTO_H */
    84.