1 /*****************************************************************************/
5 /* Handling object file data for the ld65 linker */
9 /* (C) 1998-2003 Ullrich von Bassewitz */
10 /* Römerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
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. */
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: */
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 */
32 /*****************************************************************************/
50 /*****************************************************************************/
52 /*****************************************************************************/
56 /* Object data list management */
57 unsigned ObjCount = 0; /* Count of object files in the list */
58 ObjData* ObjRoot = 0; /* List of object files */
59 ObjData* ObjLast = 0; /* Last entry in list */
60 ObjData** ObjPool = 0; /* Object files as array */
64 /*****************************************************************************/
66 /*****************************************************************************/
70 ObjData* NewObjData (void)
71 /* Allocate a new structure on the heap, insert it into the list, return it */
74 ObjData* O = xmalloc (sizeof (ObjData));
76 /* Initialize the data */
93 /* Link it into the list */
99 ObjRoot = ObjLast = O;
102 /* One object file more now */
105 /* Return the new entry */
111 void FreeObjStrings (ObjData* O)
112 /* Free the module string data. Used once the object file is loaded completely
113 * when all strings are converted to global strings.
116 while (O->StringCount) {
117 xfree (O->Strings[--O->StringCount]);
125 const char* GetObjString (const ObjData* O, unsigned Index)
126 /* Get a string from the object file string table. Abort if the string index
130 if (Index >= O->StringCount) {
131 Error ("Invalid string index (%u) in module `%s'",
132 Index, GetObjFileName (O));
134 return O->Strings[Index];
139 unsigned MakeGlobalStringId (const ObjData* O, unsigned Index)
140 /* Convert a local string id into a global one and return it. */
142 if (Index >= O->StringCount) {
143 Error ("Invalid string index (%u) in module `%s'",
144 Index, GetObjFileName (O));
146 return GetStringId (O->Strings[Index]);
151 const char* GetObjFileName (const ObjData* O)
152 /* Get the name of the object file. Return "[linker generated]" if the object
156 return O? O->Name : "[linker generated]";
161 const char* GetSourceFileName (const ObjData* O, unsigned Index)
162 /* Get the name of the source file with the given index. If O is NULL, return
163 * "[linker generated]" as the file name.
166 /* Check if we have an object file */
170 return "[linker generated]";
174 /* Check the parameter */
175 PRECONDITION (Index < O->FileCount);
177 /* Return the name */
178 return O->Files[Index]->Name;