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

   1 /*****************************************************************************/
   2 /*                                                                           */
   3 /*                                 objdata.c                                 */
   4 /*                                                                           */
   5 /*               Handling object file data for the ld65 linker               */
   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 #include <string.h>
  37
  38 /* common */
  39 #include "check.h"
  40 #include "xmalloc.h"
  41
  42 /* ld65 */
  43 #include "error.h"
  44 #include "fileinfo.h"
  45 #include "objdata.h"
  46
  47
  48
  49 /*****************************************************************************/
  50 /*                                   Data                                    */
  51 /*****************************************************************************/
  52
  53
  54
  55 /* Object data list management */
  56 unsigned        ObjCount = 0;   /* Count of object files in the list */
  57 ObjData*        ObjRoot  = 0;   /* List of object files */
  58 ObjData*        ObjLast  = 0;   /* Last entry in list */
  59 ObjData**       ObjPool  = 0;   /* Object files as array */
  60
  61
  62
  63 /*****************************************************************************/
  64 /*                                   Code                                    */
  65 /*****************************************************************************/
  66
  67
  68
  69 ObjData* NewObjData (void)
  70 /* Allocate a new structure on the heap, insert it into the list, return it */
  71 {
  72     /* Allocate memory */
  73     ObjData* O = xmalloc (sizeof (ObjData));
  74
  75     /* Initialize the data */
  76     O->Next             = 0;
  77     O->Name             = 0;
  78     O->LibName          = 0;
  79     O->Flags            = 0;
  80     O->Start            = 0;
  81     O->ExportCount      = 0;
  82     O->Exports          = 0;
  83     O->ImportCount      = 0;
  84     O->Imports          = 0;
  85     O->DbgSymCount      = 0;
  86     O->DbgSyms          = 0;
  87     O->LineInfoCount    = 0;
  88     O->LineInfos        = 0;
  89
  90     /* Link it into the list */
  91     if (ObjLast) {
  92         ObjLast->Next = O;
  93         ObjLast       = O;
  94     } else {
  95         /* First entry */
  96         ObjRoot = ObjLast = O;
  97     }
  98
  99     /* One object file more now */
 100     ++ObjCount;
 101
 102     /* Return the new entry */
 103     return O;
 104 }
 105
 106
 107
 108 void FreeObjData (ObjData* O)
 109 /* Free a complete struct */
 110 {
 111     xfree (O->Name);
 112     xfree (O->Imports);
 113     xfree (O->Exports);
 114     xfree (O->DbgSyms);
 115     xfree (O->LineInfos);
 116     xfree (O);
 117 }
 118
 119
 120
 121 const char* GetObjFileName (const ObjData* O)
 122 /* Get the name of the object file. Return "[linker generated]" if the object
 123  * file is NULL.
 124  */
 125 {
 126     return O? O->Name : "[linker generated]";
 127 }
 128
 129
 130
 131 const char* GetSourceFileName (const ObjData* O, unsigned Index)
 132 /* Get the name of the source file with the given index. If O is NULL, return
 133  * "[linker generated]" as the file name.
 134  */
 135 {
 136     /* Check if we have an object file */
 137     if (O == 0) {
 138
 139         /* No object file */
 140         return "[linker generated]";
 141
 142     } else {
 143
 144         /* Check the parameter */
 145         PRECONDITION (Index < O->FileCount);
 146
 147         /* Return the name */
 148         return O->Files[Index]->Name;
 149
 150     }
 151 }
 152
 153
 154
 155