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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                fragment.c                                 */
   4 /*                                                                           */
   5 /*                        Code/data fragment routines                        */
   6 /*                                                                           */
   7 /*                                                                           */
   8 /*                                                                           */
   9 /* (C) 1998-2001 Ullrich von Bassewitz                                       */
  10 /*               Wacholderweg 14                                             */
  11 /*               D-70597 Stuttgart                                           */
  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 /* common */
  37 #include "xmalloc.h"
  38
  39 /* ld65 */
  40 #include "segments.h"
  41 #include "fragment.h"
  42
  43
  44
  45 /*****************************************************************************/
  46 /*                                   Code                                    */
  47 /*****************************************************************************/
  48
  49
  50
  51 Fragment* NewFragment (unsigned char Type, unsigned long Size, Section* S)
  52 /* Create a new fragment and insert it into the section S */
  53 {
  54     /* Allocate memory */
  55     Fragment* F = xmalloc (sizeof (Fragment) - 1 + Size);       /* Portable? */
  56
  57     /* Initialize the data */
  58     F->Next = 0;
  59     F->Obj  = 0;
  60     F->Size = Size;
  61     F->Expr = 0;
  62     InitFilePos (&F->Pos);
  63     F->LI   = 0;
  64     F->Type = Type;
  65
  66     /* Insert the code fragment into the section */
  67     if (S->FragRoot == 0) {
  68         /* First fragment */
  69         S->FragRoot = F;
  70     } else {
  71         S->FragLast->Next = F;
  72     }
  73     S->FragLast = F;
  74
  75     /* Increment the size of the section by the size of the fragment */
  76     S->Size += Size;
  77
  78     /* Increment the size of the segment that contains the section */
  79     S->Seg->Size += Size;
  80
  81     /* Return the new fragment */
  82     return F;
  83 }
  84
  85
  86