git.sur5r.net Git - cc65/blob - src/ld65/fragment.h

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                fragment.h                                 */
   4 /*                                                                           */
   5 /*                        Code/data fragment routines                        */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2003 Ullrich von Bassewitz                                       */
  10 /*               Römerstrasse 52                                             */
  11 /*               D-70794 Filderstadt                                         */
  12 /* EMail:        uz@cc65.org                                                 */
  13 /*                                                                           */
  14 /*                                                                           */
  15 /* This software is provided 'as-is', without any expressed or implied       */
  16 /* warranty.  In no event will the authors be held liable for any damages    */
  17 /* arising from the use of this software.                                    */
  18 /*                                                                           */
  19 /* Permission is granted to anyone to use this software for any purpose,     */
  20 /* including commercial applications, and to alter it and redistribute it    */
  21 /* freely, subject to the following restrictions:                            */
  22 /*                                                                           */
  23 /* 1. The origin of this software must not be misrepresented; you must not   */
  24 /*    claim that you wrote the original software. If you use this software   */
  25 /*    in a product, an acknowledgment in the product documentation would be  */
  26 /*    appreciated but is not required.                                       */
  27 /* 2. Altered source versions must be plainly marked as such, and must not   */
  28 /*    be misrepresented as being the original software.                      */
  29 /* 3. This notice may not be removed or altered from any source              */
  30 /*    distribution.                                                          */
  31 /*                                                                           */
  32 /*****************************************************************************/
  33
  34
  35
  36 #ifndef FRAGMENT_H
  37 #define FRAGMENT_H
  38
  39
  40
  41 /* common */
  42 #include "filepos.h"
  43
  44
  45
  46 /*****************************************************************************/
  47 /*                                 Forwards                                  */
  48 /*****************************************************************************/
  49
  50
  51
  52 struct LineInfo;
  53 struct ObjData;
  54 struct Section;
  55
  56
  57
  58 /*****************************************************************************/
  59 /*                                   Data                                    */
  60 /*****************************************************************************/
  61
  62
  63
  64 /* Fragment check expression */
  65 typedef struct FragCheck FragCheck;
  66 struct FragCheck {
  67     struct FragCheck*   Next;           /* Next check expression */
  68     struct ExprNode*    Expr;           /* The expression itself */
  69     unsigned            Action;         /* Action to take if the check fails */
  70     unsigned            Message;        /* Message number */
  71 };
  72
  73 /* Fragment structure */
  74 typedef struct Fragment Fragment;
  75 struct Fragment {
  76     Fragment*           Next;           /* Next fragment in list */
  77     struct ObjData*     Obj;            /* Source of fragment */
  78     unsigned            Size;           /* Size of data/expression */
  79     struct ExprNode*    Expr;           /* Expression if FRAG_EXPR */
  80     FilePos             Pos;            /* File position in source */
  81     struct LineInfo*    LI;             /* Additional line info */
  82     FragCheck*          Check;          /* Single linked list of checks */
  83     unsigned char       Type;           /* Type of fragment */
  84     unsigned char       LitBuf [1];     /* Dynamically alloc'ed literal buffer */
  85 };
  86
  87
  88
  89 /*****************************************************************************/
  90 /*                                   Code                                    */
  91 /*****************************************************************************/
  92
  93
  94
  95 FragCheck* ReadFragCheck (FILE* F, Fragment* Frag);
  96 /* Read a fragment check expression from the given file */
  97
  98 Fragment* NewFragment (unsigned char Type, unsigned Size, struct Section* S);
  99 /* Create a new fragment and insert it into the section S */
 100
 101
 102
 103 /* End of fragment.h */
 104
 105 #endif
 106
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 109