1 /*****************************************************************************/
5 /* Handling object file data for the ld65 linker */
9 /* (C) 1998-2011, Ullrich von Bassewitz */
10 /* Roemerstrasse 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 /*****************************************************************************/
48 /*****************************************************************************/
50 /*****************************************************************************/
61 /* Values for the Flags field */
62 #define OBJ_REF 0x0001 /* We have a reference to this file */
64 /* Internal structure holding object file data */
65 typedef struct ObjData ObjData;
67 ObjData* Next; /* Linked list of all objects */
68 unsigned Id; /* Id of this module */
69 unsigned Name; /* Module name */
70 struct Library* Lib; /* Library where module comes from */
71 unsigned long MTime; /* Time of last modification */
72 ObjHeader Header; /* Header of file */
73 unsigned long Start; /* Start offset of data in library */
76 unsigned SymBaseId; /* Debug info base id for symbols */
77 unsigned ScopeBaseId; /* Debug info base id for scopes */
78 unsigned SpanBaseId; /* Debug info base id for spans */
80 Collection Files; /* List of input files */
81 Collection Sections; /* List of all sections */
82 Collection Exports; /* List of all exports */
83 Collection Imports; /* List of all imports */
84 Collection DbgSyms; /* List of debug symbols */
85 Collection LineInfos; /* List of line infos */
86 unsigned StringCount; /* Count of strings */
87 unsigned* Strings; /* List of global string indices */
88 Collection Assertions; /* List of module assertions */
89 Collection Scopes; /* List of scopes */
90 Collection Spans; /* List of spans */
95 /* Collection containing used ObjData objects */
96 extern Collection ObjDataList;
100 /*****************************************************************************/
102 /*****************************************************************************/
106 ObjData* NewObjData (void);
107 /* Allocate a new structure on the heap, insert it into the list, return it */
109 void FreeObjData (ObjData* O);
110 /* Free an ObjData object. NOTE: This function works only for unused object
111 * data, that is, ObjData objects that aren't used because they aren't
115 void FreeObjStrings (ObjData* O);
116 /* Free the module string data. Used once the object file is loaded completely
117 * when all strings are converted to global strings.
120 void InsertObjData (ObjData* O);
121 /* Insert the ObjData object into the collection of used ObjData objects. */
123 void InsertObjGlobals (ObjData* O);
124 /* Insert imports and exports from the object file into the global import and
128 unsigned MakeGlobalStringId (const ObjData* O, unsigned Index);
129 /* Convert a local string id into a global one and return it. */
131 const char* GetObjFileName (const ObjData* O);
132 /* Get the name of the object file. Return "[linker generated]" if the object
136 #if defined(HAVE_INLINE)
137 INLINE int ObjHasFiles (const ObjData* O)
138 /* Return true if the files list does exist */
140 return (O != 0 && CollCount (&O->Files) != 0);
143 # define ObjHasFiles(O) ((O) != 0 && CollCount (&(O)->Files) != 0)
146 struct Section* GetObjSection (ObjData* Obj, unsigned Id);
147 /* Get a section from an object file checking for a valid index */
149 struct Import* GetObjImport (ObjData* Obj, unsigned Id);
150 /* Get an import from an object file checking for a valid index */
152 struct Export* GetObjExport (ObjData* Obj, unsigned Id);
153 /* Get an export from an object file checking for a valid index */
155 struct Scope* GetObjScope (ObjData* Obj, unsigned Id);
156 /* Get a scope from an object file checking for a valid index */
158 unsigned ObjDataCount (void);
159 /* Return the total number of modules */
161 void PrintDbgModules (FILE* F);
162 /* Output the modules to a debug info file */
166 /* End of objdata.h */