1 /* 2 ** DynASM encoding engine prototypes. 3 ** Copyright (C) 2005-2021 Mike Pall. All rights reserved. 4 ** Released under the MIT license. See dynasm.lua for full copyright notice. 5 */ 6 7 #ifndef _DASM_PROTO_H 8 #define _DASM_PROTO_H 9 10 #include <stddef.h> 11 #include <stdarg.h> 12 13 #define DASM_IDENT "DynASM 1.5.0" 14 #define DASM_VERSION 10500 /* 1.5.0 */ 15 16 #ifndef Dst_DECL 17 #define Dst_DECL dasm_State **Dst 18 #endif 19 20 #ifndef Dst_REF 21 #define Dst_REF (*Dst) 22 #endif 23 24 #ifndef DASM_FDEF 25 #define DASM_FDEF extern 26 #endif 27 28 #ifndef DASM_M_GROW 29 #define DASM_M_GROW(ctx, t, p, sz, need) \ 30 do { \ 31 size_t _sz = (sz), _need = (need); \ 32 if (_sz < _need) { \ 33 if (_sz < 16) _sz = 16; \ 34 while (_sz < _need) _sz += _sz; \ 35 (p) = (t *)realloc((p), _sz); \ 36 if ((p) == NULL) exit(1); \ 37 (sz) = _sz; \ 38 } \ 39 } while(0) 40 #endif 41 42 #ifndef DASM_M_FREE 43 #define DASM_M_FREE(ctx, p, sz) free(p) 44 #endif 45 46 /* Internal DynASM encoder state. */ 47 typedef struct dasm_State dasm_State; 48 49 50 /* Initialize and free DynASM state. */ 51 DASM_FDEF void dasm_init(Dst_DECL, int maxsection); 52 DASM_FDEF void dasm_free(Dst_DECL); 53 54 /* Setup global array. Must be called before dasm_setup(). */ 55 DASM_FDEF void dasm_setupglobal(Dst_DECL, void **gl, unsigned int maxgl); 56 57 /* Grow PC label array. Can be called after dasm_setup(), too. */ 58 DASM_FDEF void dasm_growpc(Dst_DECL, unsigned int maxpc); 59 60 /* Setup encoder. */ 61 DASM_FDEF void dasm_setup(Dst_DECL, const void *actionlist); 62 63 /* Feed encoder with actions. Calls are generated by pre-processor. */ 64 DASM_FDEF void dasm_put(Dst_DECL, int start, ...); 65 66 /* Link sections and return the resulting size. */ 67 DASM_FDEF int dasm_link(Dst_DECL, size_t *szp); 68 69 /* Encode sections into buffer. */ 70 DASM_FDEF int dasm_encode(Dst_DECL, void *buffer); 71 72 /* Get PC label offset. */ 73 DASM_FDEF int dasm_getpclabel(Dst_DECL, unsigned int pc); 74 75 #ifdef DASM_CHECKS 76 /* Optional sanity checker to call between isolated encoding steps. */ 77 DASM_FDEF int dasm_checkstep(Dst_DECL, int secmatch); 78 #else 79 #define dasm_checkstep(a, b) 0 80 #endif 81 82 83 #endif /* _DASM_PROTO_H */ 84
