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 /*****************************************************************************/
51 /*****************************************************************************/
53 /*****************************************************************************/
57 /* Collection containing used ObjData objects */
58 Collection ObjDataList = STATIC_COLLECTION_INITIALIZER;
62 /*****************************************************************************/
64 /*****************************************************************************/
68 ObjData* NewObjData (void)
69 /* Allocate a new structure on the heap, insert it into the list, return it */
72 ObjData* O = xmalloc (sizeof (ObjData));
74 /* Initialize the data */
76 O->Name = INVALID_STRING_ID;
77 O->LibName = INVALID_STRING_ID;
91 O->AssertionCount = 0;
94 /* Return the new entry */
100 void FreeObjData (ObjData* O)
101 /* Free an ObjData object. NOTE: This function works only for unused object
102 * data, that is, ObjData objects that aren't used because they aren't
106 /* Unused ObjData do only have the string pool, Exports and Imports. */
107 while (O->ExportCount) {
108 FreeExport (O->Exports[--O->ExportCount]);
111 while (O->ImportCount) {
112 FreeImport (O->Imports[--O->ImportCount]);
121 void FreeObjStrings (ObjData* O)
122 /* Free the module string data. Used once the object file is loaded completely
123 * when all strings are converted to global strings.
132 void InsertObjData (ObjData* O)
133 /* Insert the ObjData object into the collection of used ObjData objects. */
135 CollAppend (&ObjDataList, O);
140 void InsertObjGlobals (ObjData* O)
141 /* Insert imports and exports from the object file into the global import and
147 /* Insert exports and imports */
148 for (I = 0; I < O->ExportCount; ++I) {
149 InsertExport (O->Exports[I]);
151 for (I = 0; I < O->ImportCount; ++I) {
152 InsertImport (O->Imports[I]);
158 unsigned MakeGlobalStringId (const ObjData* O, unsigned Index)
159 /* Convert a local string id into a global one and return it. */
161 if (Index >= O->StringCount) {
162 Error ("Invalid string index (%u) in module `%s'",
163 Index, GetObjFileName (O));
165 return O->Strings[Index];
170 const char* GetObjFileName (const ObjData* O)
171 /* Get the name of the object file. Return "[linker generated]" if the object
175 return O? GetString (O->Name) : "[linker generated]";
180 const char* GetSourceFileName (const ObjData* O, unsigned Index)
181 /* Get the name of the source file with the given index. If O is NULL, return
182 * "[linker generated]" as the file name.
185 /* Check if we have an object file */
189 return "[linker generated]";
193 /* Check the parameter */
194 PRECONDITION (Index < O->FileCount);
196 /* Return the name */
197 return GetString (O->Files[Index]->Name);