1 /*****************************************************************************/
5 /* cc65 debug info handling */
9 /* (C) 2010-2011, 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 /*****************************************************************************/
41 /* Allow usage from C++ */
48 /*****************************************************************************/
50 /*****************************************************************************/
54 /* Data types used for addresses, sizes and line numbers. Change to "unsigned
55 * long" if you ever want to run the code on a 16-bit machine.
57 typedef unsigned cc65_line; /* Used to store line numbers */
58 typedef unsigned cc65_addr; /* Used to store (65xx) addresses */
59 typedef unsigned cc65_size; /* Used to store (65xx) sizes */
61 /* A value that is used to mark invalid ids */
62 #define CC65_INV_ID (~0U)
66 /*****************************************************************************/
67 /* Debug info files */
68 /*****************************************************************************/
72 /* Severity for cc65_parseerror */
76 } cc65_error_severity;
78 /* Warnings/errors in cc65_read_dbginfo are passed via this struct */
79 typedef struct cc65_parseerror cc65_parseerror;
80 struct cc65_parseerror {
81 cc65_error_severity type; /* Type of error */
82 const char* name; /* Name of input file */
83 cc65_line line; /* Error line */
84 unsigned column; /* Error column */
85 char errormsg[1]; /* Error message */
88 /* Function that is called in case of parse errors */
89 typedef void (*cc65_errorfunc) (const cc65_parseerror*);
91 /* Pointer to an opaque data structure containing information from the debug
92 * info file. Actually a handle to the data in the file.
94 typedef const void* cc65_dbginfo;
98 cc65_dbginfo cc65_read_dbginfo (const char* filename, cc65_errorfunc errorfunc);
99 /* Parse the debug info file with the given name. On success, the function
100 * will return a pointer to an opaque cc65_dbginfo structure, that must be
101 * passed to the other functions in this module to retrieve information.
102 * errorfunc is called in case of warnings and errors. If the file cannot be
103 * read successfully, NULL is returned.
106 void cc65_free_dbginfo (cc65_dbginfo Handle);
107 /* Free debug information read from a file */
111 /*****************************************************************************/
113 /*****************************************************************************/
123 /* C object storage classes */
125 CC65_CSYM_AUTO, /* Auto = on stack */
126 CC65_CSYM_REG, /* Register = in register bank */
127 CC65_CSYM_STATIC, /* Static = static storage */
128 CC65_CSYM_EXTERN /* Extern = static storage + external visibility */
131 /* C symbol information */
132 typedef struct cc65_csymdata cc65_csymdata;
133 struct cc65_csymdata {
134 unsigned csym_id; /* The internal c symbol id */
135 unsigned char csym_kind; /* Kind of c symbol */
136 unsigned char csym_sc; /* Storage class of c symbol */
137 int csym_offs; /* Offset for auto and register */
138 unsigned symbol_id; /* Attached asm symbol if any */
139 unsigned scope_id; /* Scope of c symbol */
140 const char* csym_name; /* Name of the symbol */
143 typedef struct cc65_csyminfo cc65_csyminfo;
144 struct cc65_csyminfo {
145 unsigned count; /* Number of data sets that follow */
146 cc65_csymdata data[1]; /* Data sets, number is dynamic */
151 const cc65_csyminfo* cc65_get_csymlist (cc65_dbginfo handle);
152 /* Return a list of all c symbols */
154 const cc65_csyminfo* cc65_csym_byid (cc65_dbginfo handle, unsigned id);
155 /* Return information about a c symbol with a specific id. The function
156 * returns NULL if the id is invalid (no such c symbol) and otherwise a
157 * cc65_csyminfo structure with one entry that contains the requested
158 * symbol information.
161 void cc65_free_csyminfo (cc65_dbginfo handle, const cc65_csyminfo* info);
162 /* Free a c symbol info record */
166 /*****************************************************************************/
168 /*****************************************************************************/
172 /* Library information */
173 typedef struct cc65_librarydata cc65_librarydata;
174 struct cc65_librarydata {
175 unsigned library_id; /* The internal library id */
176 const char* library_name; /* Name of the library */
179 typedef struct cc65_libraryinfo cc65_libraryinfo;
180 struct cc65_libraryinfo {
181 unsigned count; /* Number of data sets that follow */
182 cc65_librarydata data[1]; /* Data sets, number is dynamic */
187 const cc65_libraryinfo* cc65_get_librarylist (cc65_dbginfo handle);
188 /* Return a list of all libraries */
190 const cc65_libraryinfo* cc65_library_byid (cc65_dbginfo handle, unsigned id);
191 /* Return information about a library with a specific id. The function
192 * returns NULL if the id is invalid (no such library) and otherwise a
193 * cc65_libraryinfo structure with one entry that contains the requested
194 * library information.
197 void cc65_free_libraryinfo (cc65_dbginfo handle, const cc65_libraryinfo* info);
198 /* Free a library info record */
202 /*****************************************************************************/
204 /*****************************************************************************/
210 CC65_LINE_ASM, /* Assembler source */
211 CC65_LINE_EXT, /* Externally supplied (= C) */
212 CC65_LINE_MACRO, /* Macro expansion */
215 /* Line information */
216 typedef struct cc65_linedata cc65_linedata;
217 struct cc65_linedata {
218 unsigned line_id; /* Internal id of this record */
219 unsigned source_id; /* Id of the source file */
220 cc65_line source_line; /* Line number */
221 cc65_line_type line_type; /* Type of line */
222 unsigned count; /* Nesting counter for macros */
225 typedef struct cc65_lineinfo cc65_lineinfo;
226 struct cc65_lineinfo {
227 unsigned count; /* Number of data sets that follow */
228 cc65_linedata data[1]; /* Data sets, number is dynamic */
233 const cc65_lineinfo* cc65_line_byid (cc65_dbginfo handle, unsigned id);
234 /* Return information about a line with a specific id. The function
235 * returns NULL if the id is invalid (no such line) and otherwise a
236 * cc65_lineinfo structure with one entry that contains the requested
237 * module information.
240 const cc65_lineinfo* cc65_line_bynumber (cc65_dbginfo handle,
243 /* Return line information for a source file/line number combination. The
244 * function returns NULL if no line information was found.
247 const cc65_lineinfo* cc65_line_bysource (cc65_dbginfo Handle, unsigned source_id);
248 /* Return line information for a source file. The function returns NULL if the
249 * file id is invalid.
252 const cc65_lineinfo* cc65_line_bysymdef (cc65_dbginfo handle, unsigned symbol_id);
253 /* Return line information for the definition of a symbol. The function
254 * returns NULL if the symbol id is invalid, otherwise a list of line infos.
257 const cc65_lineinfo* cc65_line_bysymref (cc65_dbginfo handle, unsigned symbol_id);
258 /* Return line information for all references of a symbol. The function
259 * returns NULL if the symbol id is invalid, otherwise a list of line infos.
262 const cc65_lineinfo* cc65_line_byspan (cc65_dbginfo handle, unsigned span_id);
263 /* Return line information for a a span. The function returns NULL if the
264 * span id is invalid, otherwise a list of line infos.
267 void cc65_free_lineinfo (cc65_dbginfo handle, const cc65_lineinfo* info);
268 /* Free line info returned by one of the other functions */
272 /*****************************************************************************/
274 /*****************************************************************************/
278 /* Module information
280 * - scope_id contains CC65_INV_ID if the module was compiled without
283 typedef struct cc65_moduledata cc65_moduledata;
284 struct cc65_moduledata {
285 unsigned module_id; /* The internal module id */
286 const char* module_name; /* Name of the module */
287 unsigned source_id; /* Id of the module main file */
288 unsigned library_id; /* Id of the library if any */
289 unsigned scope_id; /* Id of the main scope */
292 typedef struct cc65_moduleinfo cc65_moduleinfo;
293 struct cc65_moduleinfo {
294 unsigned count; /* Number of data sets that follow */
295 cc65_moduledata data[1]; /* Data sets, number is dynamic */
300 const cc65_moduleinfo* cc65_get_modulelist (cc65_dbginfo handle);
301 /* Return a list of all modules */
303 const cc65_moduleinfo* cc65_module_byid (cc65_dbginfo handle, unsigned id);
304 /* Return information about a module with a specific id. The function
305 * returns NULL if the id is invalid (no such module) and otherwise a
306 * cc65_moduleinfo structure with one entry that contains the requested
307 * module information.
310 void cc65_free_moduleinfo (cc65_dbginfo handle, const cc65_moduleinfo* info);
311 /* Free a module info record */
315 /*****************************************************************************/
317 /*****************************************************************************/
321 /* Span information */
322 typedef struct cc65_spandata cc65_spandata;
323 struct cc65_spandata {
324 unsigned span_id; /* The internal span id */
325 cc65_addr span_start; /* Start of the span */
326 cc65_addr span_end; /* End of the span (inclusive!) */
327 unsigned segment_id; /* Id of the segment */
328 unsigned type_id; /* Id of the type of this span */
329 unsigned line_count; /* Number of lines attached */
330 unsigned scope_count; /* Number of scopes attached */
333 typedef struct cc65_spaninfo cc65_spaninfo;
334 struct cc65_spaninfo {
335 unsigned count; /* Number of data sets that follow */
336 cc65_spandata data[1]; /* Data sets, number is dynamic */
341 const cc65_spaninfo* cc65_get_spanlist (cc65_dbginfo handle);
342 /* Return a list of all spans. BEWARE: Large! */
344 const cc65_spaninfo* cc65_span_byid (cc65_dbginfo handle, unsigned id);
345 /* Return information about a span with a specific id. The function
346 * returns NULL if the id is invalid (no such span) and otherwise a
347 * cc65_spaninfo structure with one entry that contains the requested
351 const cc65_spaninfo* cc65_span_byaddr (cc65_dbginfo handle,
353 /* Return span information for the given address. The function returns NULL
354 * if no spans were found for this address.
357 const cc65_spaninfo* cc65_span_byline (cc65_dbginfo handle, unsigned line_id);
358 /* Return span information for the given source line. The function returns NULL
359 * if the line id is invalid, otherwise the spans for this line (possibly zero).
362 const cc65_spaninfo* cc65_span_byscope (cc65_dbginfo handle, unsigned scope_id);
363 /* Return span information for the given scope. The function returns NULL if
364 * the scope id is invalid, otherwise the spans for this scope (possibly zero).
367 void cc65_free_spaninfo (cc65_dbginfo handle, const cc65_spaninfo* info);
368 /* Free a span info record */
372 /*****************************************************************************/
374 /*****************************************************************************/
378 /* Source file information */
379 typedef struct cc65_sourcedata cc65_sourcedata;
380 struct cc65_sourcedata {
381 unsigned source_id; /* The internal file id */
382 const char* source_name; /* Name of the file */
383 unsigned long source_size; /* Size of file */
384 unsigned long source_mtime; /* Modification time */
387 typedef struct cc65_sourceinfo cc65_sourceinfo;
388 struct cc65_sourceinfo {
389 unsigned count; /* Number of data sets that follow */
390 cc65_sourcedata data[1]; /* Data sets, number is dynamic */
395 const cc65_sourceinfo* cc65_get_sourcelist (cc65_dbginfo handle);
396 /* Return a list of all source files */
398 const cc65_sourceinfo* cc65_source_byid (cc65_dbginfo handle, unsigned id);
399 /* Return information about a source file with a specific id. The function
400 * returns NULL if the id is invalid (no such source file) and otherwise a
401 * cc65_sourceinfo structure with one entry that contains the requested
402 * source file information.
405 const cc65_sourceinfo* cc65_source_bymodule (cc65_dbginfo handle,
407 /* Return information about the source files used to build a module. The
408 * function returns NULL if the module id is invalid (no such module) and
409 * otherwise a cc65_sourceinfo structure with one entry per source file.
412 void cc65_free_sourceinfo (cc65_dbginfo handle, const cc65_sourceinfo* info);
413 /* Free a source info record */
417 /*****************************************************************************/
419 /*****************************************************************************/
423 /* Scope information */
425 CC65_SCOPE_GLOBAL, /* Global scope */
426 CC65_SCOPE_MODULE, /* Module scope */
427 CC65_SCOPE_SCOPE, /* .PROC/.SCOPE */
428 CC65_SCOPE_STRUCT, /* .STRUCT */
429 CC65_SCOPE_ENUM, /* .ENUM */
432 typedef struct cc65_scopedata cc65_scopedata;
433 struct cc65_scopedata {
434 unsigned scope_id; /* Id of scope */
435 const char* scope_name; /* Name of scope */
436 cc65_scope_type scope_type; /* Type of scope */
437 cc65_size scope_size; /* Size of scope, 0 if unknown */
438 unsigned parent_id; /* Id of parent scope */
439 unsigned symbol_id; /* Id of scope symbol if any */
440 unsigned module_id; /* Id of the module */
443 typedef struct cc65_scopeinfo cc65_scopeinfo;
444 struct cc65_scopeinfo {
445 unsigned count; /* Number of data sets that follow */
446 cc65_scopedata data[1]; /* Data sets, number is dynamic */
451 const cc65_scopeinfo* cc65_get_scopelist (cc65_dbginfo handle);
452 /* Return a list of all scopes in the debug information */
454 const cc65_scopeinfo* cc65_scope_byid (cc65_dbginfo handle, unsigned id);
455 /* Return the scope with a given id. The function returns NULL if no scope
456 * with this id was found.
459 const cc65_scopeinfo* cc65_scope_bymodule (cc65_dbginfo handle, unsigned module_id);
460 /* Return the list of scopes for one module. The function returns NULL if no
461 * scope with the given id was found.
464 const cc65_scopeinfo* cc65_scope_byname (cc65_dbginfo handle, const char* name);
465 /* Return the list of scopes with a given name. Returns NULL if no scope with
466 * the given name was found, otherwise a non empty scope list.
469 const cc65_scopeinfo* cc65_scope_byspan (cc65_dbginfo handle, unsigned span_id);
470 /* Return scope information for a a span. The function returns NULL if the
471 * span id is invalid, otherwise a list of line scopes.
474 const cc65_scopeinfo* cc65_childscopes_byid (cc65_dbginfo handle, unsigned id);
475 /* Return the direct child scopes of a scope with a given id. The function
476 * returns NULL if no scope with this id was found, otherwise a list of the
480 void cc65_free_scopeinfo (cc65_dbginfo Handle, const cc65_scopeinfo* Info);
481 /* Free a scope info record */
485 /*****************************************************************************/
487 /*****************************************************************************/
491 /* Segment information.
493 * - output_name may be NULL if the data wasn't written to the output file
494 * (example: bss segment)
495 * - output_offs is invalid if there is no output_name, and may not be of
496 * much use in case of a relocatable output file
498 typedef struct cc65_segmentdata cc65_segmentdata;
499 struct cc65_segmentdata {
500 unsigned segment_id; /* The internal segment id */
501 const char* segment_name; /* Name of the segment */
502 cc65_addr segment_start; /* Start address of segment */
503 cc65_size segment_size; /* Size of segment */
504 const char* output_name; /* Output file this seg was written to */
505 unsigned long output_offs; /* Offset of this seg in output file */
508 typedef struct cc65_segmentinfo cc65_segmentinfo;
509 struct cc65_segmentinfo {
510 unsigned count; /* Number of data sets that follow */
511 cc65_segmentdata data[1]; /* Data sets, number is dynamic */
516 const cc65_segmentinfo* cc65_get_segmentlist (cc65_dbginfo handle);
517 /* Return a list of all segments referenced in the debug information */
519 const cc65_segmentinfo* cc65_segment_byid (cc65_dbginfo handle, unsigned id);
520 /* Return information about a segment with a specific id. The function returns
521 * NULL if the id is invalid (no such segment) and otherwise a cc65_segmentinfo
522 * structure with one entry that contains the requested segment information.
525 const cc65_segmentinfo* cc65_segment_byname (cc65_dbginfo handle,
527 /* Return information about a segment with a specific name. The function
528 * returns NULL if no segment with this name exists and otherwise a
529 * cc65_segmentinfo structure with one entry that contains the requested
533 void cc65_free_segmentinfo (cc65_dbginfo handle, const cc65_segmentinfo* info);
534 /* Free a segment info record */
538 /*****************************************************************************/
540 /*****************************************************************************/
544 /* Symbol information */
547 CC65_SYM_LABEL, /* Some sort of address */
548 CC65_SYM_IMPORT, /* An import */
552 * - If the symbol is segment relative, the segment id gives segment
553 * information, otherwise it contains CC65_INV_ID.
554 * - If the type is CC65_SYM_IMPORT, export_id may contain the id of the
555 * export. This is not the case if the module contaiing the export doesn't
556 * have debug information.
557 * - For an import, the fields symbol_value and segment_id are taken from
558 * the export, if it is available, since imports have no value or segments
560 * - For an import symbol_size doesn't have a meaning.
561 * - For normal symbols (not cheap locals) parent_id contains CC65_INV_ID,
562 * for cheap locals it contains the symbol id of the parent symbol.
564 typedef struct cc65_symboldata cc65_symboldata;
565 struct cc65_symboldata {
566 unsigned symbol_id; /* Id of symbol */
567 const char* symbol_name; /* Name of symbol */
568 cc65_symbol_type symbol_type; /* Type of symbol */
569 cc65_size symbol_size; /* Size of symbol, 0 if unknown */
570 long symbol_value; /* Value of symbol */
571 unsigned export_id; /* For imports: Matching export */
572 unsigned segment_id; /* Id of segment if any */
573 unsigned scope_id; /* The scope this symbol is in */
574 unsigned parent_id; /* Parent symbol for cheap locals */
577 typedef struct cc65_symbolinfo cc65_symbolinfo;
578 struct cc65_symbolinfo {
579 unsigned count; /* Number of data sets that follow */
580 cc65_symboldata data[1]; /* Data sets, number is dynamic */
585 const cc65_symbolinfo* cc65_symbol_byid (cc65_dbginfo handle, unsigned id);
586 /* Return the symbol with a given id. The function returns NULL if no symbol
587 * with this id was found.
590 const cc65_symbolinfo* cc65_symbol_byname (cc65_dbginfo handle, const char* name);
591 /* Return a list of symbols with a given name. The function returns NULL if
592 * no symbol with this name was found.
595 const cc65_symbolinfo* cc65_symbol_byscope (cc65_dbginfo handle,
597 /* Return a list of symbols in the given scope. This includes cheap local
598 * symbols, but not symbols in subscopes. The function returns NULL if the
599 * scope id is invalid (no such scope) and otherwise a - possibly empty -
603 const cc65_symbolinfo* cc65_symbol_inrange (cc65_dbginfo handle,
604 cc65_addr start, cc65_addr end);
605 /* Return a list of labels in the given range. end is inclusive. The function
606 * return NULL if no symbols within the given range are found. Non label
607 * symbols are ignored and not returned.
610 void cc65_free_symbolinfo (cc65_dbginfo handle, const cc65_symbolinfo* info);
611 /* Free a symbol info record */
615 /*****************************************************************************/
617 /*****************************************************************************/
621 /* Type information */
632 /* The following ones are currently unavailable: */
639 /* A type is a linked list of typedata structures. In case of arrays, the
640 * structure will contain an element count and the element type. In case of
641 * pointers, the structure will contain the type of the data, the pointer
642 * points to (currently, there are only VOID pointers).
643 * The next pointer points to the next entry in the list. It is NULL if the
644 * end of the list is reached.
646 typedef struct cc65_typedata cc65_typedata;
647 struct cc65_typedata {
648 cc65_typedata* next; /* Pointer to next entry */
649 cc65_typetoken what; /* What kind of type is it? */
650 cc65_size size; /* The size of the data */
652 /* Depending on "what", one of the members of this union follows */
655 /* In case of CC65_TYPE_PTR or CC65_TYPE_FARPTR */
657 const cc65_typedata* ind_type; /* Type the pointer points to */
660 /* In case of CC65_TYPE_ARRAY */
662 cc65_size ele_count; /* Element count */
663 const cc65_typedata* ele_type; /* Element type */
671 const cc65_typedata* cc65_type_byid (cc65_dbginfo handle, unsigned id);
672 /* Return the data for the type with the given id. The function returns NULL
673 * if no type with this id was found.
676 void cc65_free_typedata (cc65_dbginfo Handle, const cc65_typedata* data);
677 /* Free a symbol info record */
681 /* Allow usage from C++ */
688 /* End of dbginfo.h */