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[clinton/Virtual-Jaguar-Rx.git] / src / debugger / DWARFManager.cpp
1 //
2 // DWARFManager.cpp: DWARF format manager
3 //
4 // by Jean-Paul Mari
5 //
6 // JPM = Jean-Paul Mari <djipi.mari@gmail.com>
7 //
8 // WHO WHEN WHAT
9 // --- ---------- ------------------------------------------------------------
10 // JPM 12/03/2016 Created this file
11 // JPM 12/03/2016 DWARF format support
12
13
14 #include <stdlib.h>
15 #include <stdio.h>
16 #include <stdint.h>
17 #include <string.h>
18 #include <libdwarf.h>
19 #include <dwarf.h>
20
21
22 // Source line internal structure
23 struct DMIStruct_LineSrc
24 {
25 size_t Tag;
26 size_t StartPC;
27 size_t NumLineSrc;
28 char *PtrLineSrc;
29 }S_DMIStruct_LineSrc;
30
31 // Base type internal structure
32 struct BaseTypeStruct
33 {
34 size_t Tag; // Type's Tag
35 size_t Offset; // Type's offset
36 size_t TypeOffset; // Type's offset on another type
37 size_t ByteSize; // Type's Byte Size
38 size_t Encoding; // Type's encoding
39 char *PtrName; // Type's name
40 }S_BaseTypeStruct;
41
42 // Variables internal structure
43 struct VariablesStruct
44 {
45 size_t Addr; // Variable memory address
46 char *PtrName; // Variable's name
47 size_t TypeOffset; // Offset pointing on the Variable's Type
48 size_t TypeByteSize; // Variable's Type byte size
49 size_t TypeTag; // Variable's Type Tag
50 size_t TypeEncoding; // Variable's Type encoding
51 char *PtrTypeName; // Variable's Type name
52 }S_VariablesStruct;
53
54 // Sub program internal structure
55 struct SubProgStruct
56 {
57 size_t Tag;
58 size_t NumLineSrc;
59 size_t StartPC;
60 size_t LowPC, HighPC;
61 char *PtrLineSrc;
62 char *PtrSubprogramName;
63 size_t NbLinesSrc;
64 DMIStruct_LineSrc *PtrLinesSrc;
65 }S_SubProgStruct;
66
67 // Compilation Unit internal structure
68 struct CUStruct
69 {
70 size_t Tag;
71 size_t LowPC, HighPC;
72 char *PtrProducer; // Pointer to the "Producer" information (compiler and compilation options used)
73 char *PtrFullFilename; // Pointer to full namefile (directory & filename)
74 size_t SizeLoadSrc; // Source code size
75 char *PtrLoadSrc; // Pointer to loaded source code
76 size_t NbLinesLoadSrc; // Lines source number
77 char **PtrLinesLoadSrc; // Pointer lists to each source line put in QT html/text conformity
78 size_t NbSubProgs; // Number of sub programs / routines
79 SubProgStruct *PtrSubProgs; // Pointer to the sub programs / routines information structure
80 size_t NbTypes;
81 BaseTypeStruct *PtrTypes;
82 size_t NbVariables; // Variables number
83 VariablesStruct *PtrVariables; // Pointer to the variables list information structure
84 }S_CUStruct;
85
86
87 // Dwarf management
88 uint32_t LibDwarf;
89 uint32_t NbCU;
90 Dwarf_Ptr errarg;
91 Dwarf_Error error;
92 Dwarf_Debug dbg;
93 CUStruct *PtrCU;
94
95
96 //
97 Dwarf_Handler DWARFManager_ErrorHandler(Dwarf_Ptr perrarg);
98 void DWARFManager_InitDMI(void);
99 void DWARFManager_CloseDMI(void);
100 bool DWARFManager_ElfClose(void);
101 char *DWARFManager_GetLineSrcFromNumLine(char *PtrSrcFile, size_t NumLine);
102
103
104 //
105 Dwarf_Handler DWARFManager_ErrorHandler(Dwarf_Ptr perrarg)
106 {
107 return 0;
108 }
109
110
111 // Dwarf manager init
112 void DWARFManager_Init(void)
113 {
114 LibDwarf = DW_DLV_NO_ENTRY;
115 }
116
117
118 // Dwarf manager Reset
119 bool DWARFManager_Reset(void)
120 {
121 return DWARFManager_ElfClose();
122 }
123
124
125 // Dwarf manager Close
126 bool DWARFManager_Close(void)
127 {
128 return(DWARFManager_Reset());
129 }
130
131
132 // Dwarf manager Elf init
133 int DWARFManager_ElfInit(Elf *ElfPtr)
134 {
135 if ((LibDwarf = dwarf_elf_init(ElfPtr, DW_DLC_READ, (Dwarf_Handler)DWARFManager_ErrorHandler, errarg, &dbg, &error)) == DW_DLV_OK)
136 {
137 DWARFManager_InitDMI();
138 }
139
140 return LibDwarf;
141 }
142
143
144 // Dwarf manager Elf close
145 bool DWARFManager_ElfClose(void)
146 {
147 if (LibDwarf == DW_DLV_OK)
148 {
149 DWARFManager_CloseDMI();
150
151 if (dwarf_finish(dbg, &error) == DW_DLV_OK)
152 {
153 LibDwarf = DW_DLV_NO_ENTRY;
154 return true;
155 }
156 else
157 {
158 return false;
159 }
160 }
161 else
162 {
163 return true;
164 }
165 }
166
167
168 // Dwarf manager Compilation Units close
169 void DWARFManager_CloseDMI(void)
170 {
171 while (NbCU--)
172 {
173 free(PtrCU[NbCU].PtrFullFilename);
174 free(PtrCU[NbCU].PtrLoadSrc);
175 free(PtrCU[NbCU].PtrProducer);
176
177 while (PtrCU[NbCU].NbLinesLoadSrc--)
178 {
179 free(PtrCU[NbCU].PtrLinesLoadSrc[PtrCU[NbCU].NbLinesLoadSrc]);
180 }
181 free(PtrCU[NbCU].PtrLinesLoadSrc);
182
183 while (PtrCU[NbCU].NbSubProgs--)
184 {
185 free(PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc);
186 free(PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrSubprogramName);
187 }
188 free(PtrCU[NbCU].PtrSubProgs);
189
190 while (PtrCU[NbCU].NbTypes--)
191 {
192 free(PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].PtrName);
193 }
194 free(PtrCU[NbCU].PtrTypes);
195
196 while (PtrCU[NbCU].NbVariables--)
197 {
198 free(PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].PtrName);
199 free(PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].PtrTypeName);
200 }
201 free(PtrCU[NbCU].PtrVariables);
202 }
203
204 free(PtrCU);
205 }
206
207
208 // Dwarf manager Compilation Units initialisations
209 void DWARFManager_InitDMI(void)
210 {
211 Dwarf_Unsigned next_cu_header, return_uvalue;
212 Dwarf_Error error;
213 Dwarf_Attribute *atlist;
214 Dwarf_Attribute return_attr1;
215 Dwarf_Half return_tagval, return_attr;
216 Dwarf_Addr return_lowpc, return_highpc, return_lineaddr;
217 Dwarf_Block *return_block;
218 Dwarf_Signed atcnt, cnt;
219 Dwarf_Die return_sib, return_die;
220 Dwarf_Off return_offset;
221 Dwarf_Line *linebuf;
222 FILE *SrcFile;
223 size_t i, j, k, TypeOffset;
224 char *return_string;
225 char *Ptr;
226 char *SourceFilename = NULL;
227 char *SourceFileDirectory = NULL;
228 char *SourceFullFilename = NULL;
229
230 // Initialisation for the Compilation Units table
231 NbCU = 0;
232 PtrCU = NULL;
233
234 // loop on the available Compilation Unit
235 while (dwarf_next_cu_header(dbg, NULL, NULL, NULL, NULL, &next_cu_header, &error) == DW_DLV_OK)
236 {
237 // Allocation of an additional Compilation Unit structure in the table
238 if (Ptr = (char *)realloc(PtrCU, ((NbCU + 1) * sizeof(CUStruct))))
239 {
240 // Compilation Unit RAZ
241 PtrCU = (CUStruct *)Ptr;
242 memset(PtrCU + NbCU, 0, sizeof(CUStruct));
243
244 // Get 1st Die from the Compilation Unit
245 if (dwarf_siblingof(dbg, NULL, &return_sib, &error) == DW_DLV_OK)
246 {
247 // Get Die's Tag
248 if ((dwarf_tag(return_sib, &return_tagval, &error) == DW_DLV_OK))
249 {
250 PtrCU[NbCU].Tag = return_tagval;
251
252 // Die type detection
253 switch (return_tagval)
254 {
255 case DW_TAG_compile_unit:
256 if (dwarf_attrlist(return_sib, &atlist, &atcnt, &error) == DW_DLV_OK)
257 {
258 for (Dwarf_Signed i = 0; i < atcnt; ++i)
259 {
260 if (dwarf_whatattr(atlist[i], &return_attr, &error) == DW_DLV_OK)
261 {
262 switch (return_attr)
263 {
264 case DW_AT_low_pc:
265 if (dwarf_lowpc(return_sib, &return_lowpc, &error) == DW_DLV_OK)
266 {
267 PtrCU[NbCU].LowPC = return_lowpc;
268 }
269 break;
270
271 case DW_AT_high_pc:
272 if (dwarf_highpc(return_sib, &return_highpc, &error) == DW_DLV_OK)
273 {
274 PtrCU[NbCU].HighPC = return_highpc;
275 }
276 break;
277
278 case DW_AT_producer:
279 if (dwarf_formstring(atlist[i], &return_string, &error) == DW_DLV_OK)
280 {
281 PtrCU[NbCU].PtrProducer = (char *)calloc(strlen(return_string) + 1, 1);
282 strcpy(PtrCU[NbCU].PtrProducer, return_string);
283 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
284 }
285 break;
286
287 case DW_AT_name:
288 if (dwarf_formstring(atlist[i], &return_string, &error) == DW_DLV_OK)
289 {
290 SourceFilename = (char *)realloc(SourceFilename, strlen(return_string) + 1);
291 strcpy(SourceFilename, return_string);
292 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
293 }
294 break;
295
296 case DW_AT_comp_dir:
297 if (dwarf_formstring(atlist[i], &return_string, &error) == DW_DLV_OK)
298 {
299 SourceFileDirectory = (char *)realloc(SourceFileDirectory, strlen(return_string) + 1);
300 strcpy(SourceFileDirectory, return_string);
301 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
302 }
303 break;
304
305 default:
306 break;
307 }
308 }
309 dwarf_dealloc(dbg, atlist[i], DW_DLA_ATTR);
310 }
311 dwarf_dealloc(dbg, atlist, DW_DLA_LIST);
312 }
313
314 Ptr = SourceFullFilename = (char *)realloc(SourceFullFilename, strlen(SourceFilename) + strlen(SourceFileDirectory) + 2);
315 sprintf(SourceFullFilename, "%s\\%s", SourceFileDirectory, SourceFilename);
316 while (*Ptr)
317 {
318 if (*Ptr == '/')
319 {
320 *Ptr = '\\';
321 }
322 Ptr++;
323 }
324 PtrCU[NbCU].PtrFullFilename = (char *)calloc(strlen(SourceFullFilename) + 1, 1);
325 strcpy((char *)PtrCU[NbCU].PtrFullFilename, SourceFullFilename);
326
327 #ifndef __CYGWIN__
328 if (!fopen_s(&SrcFile, SourceFullFilename, "rt"))
329 #else
330 if (!(SrcFile = fopen(SourceFullFilename, "rt")))
331 #endif
332 {
333 if (!fseek(SrcFile, 0, SEEK_END))
334 {
335 if ((PtrCU[NbCU].SizeLoadSrc = ftell(SrcFile)) > 0)
336 {
337 if (PtrCU[NbCU].PtrLoadSrc = Ptr = (char *)calloc((PtrCU[NbCU].SizeLoadSrc + 1), 1))
338 {
339 rewind(SrcFile);
340 if (PtrCU[NbCU].SizeLoadSrc < fread(Ptr, 1, PtrCU[NbCU].SizeLoadSrc, SrcFile))
341 {
342 free(PtrCU[NbCU].PtrLoadSrc);
343 PtrCU[NbCU].PtrLoadSrc = NULL;
344 PtrCU[NbCU].SizeLoadSrc = 0;
345 }
346 else
347 {
348 do
349 {
350 if (*Ptr == 0xa)
351 {
352 PtrCU[NbCU].NbLinesLoadSrc++;
353 *Ptr = 0;
354 }
355 } while (*++Ptr);
356 }
357 }
358 }
359 }
360 fclose(SrcFile);
361 }
362 break;
363
364 default:
365 break;
366 }
367 }
368
369 // Get the source lines table located in the Compilation Unit
370 if (dwarf_srclines(return_sib, &linebuf, &cnt, &error) == DW_DLV_OK)
371 {
372 }
373
374 if (dwarf_child(return_sib, &return_die, &error) == DW_DLV_OK)
375 {
376 do
377 {
378 return_sib = return_die;
379 if ((dwarf_tag(return_die, &return_tagval, &error) == DW_DLV_OK))
380 {
381 switch (return_tagval)
382 {
383 case DW_TAG_lexical_block:
384 break;
385
386 case DW_TAG_variable:
387 if (dwarf_attrlist(return_die, &atlist, &atcnt, &error) == DW_DLV_OK)
388 {
389 PtrCU[NbCU].PtrVariables = (VariablesStruct *)realloc(PtrCU[NbCU].PtrVariables, ((PtrCU[NbCU].NbVariables + 1) * sizeof(VariablesStruct)));
390 memset(PtrCU[NbCU].PtrVariables + PtrCU[NbCU].NbVariables, 0, sizeof(VariablesStruct));
391
392 for (Dwarf_Signed i = 0; i < atcnt; ++i)
393 {
394 if (dwarf_whatattr(atlist[i], &return_attr, &error) == DW_DLV_OK)
395 {
396 if (dwarf_attr(return_die, return_attr, &return_attr1, &error) == DW_DLV_OK)
397 {
398 switch (return_attr)
399 {
400 case DW_AT_location:
401 if (dwarf_formblock(return_attr1, &return_block, &error) == DW_DLV_OK)
402 {
403 if (return_block->bl_len == 5)
404 {
405 PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].Addr = (*((unsigned char *)(return_block->bl_data) + 1) << 24) + (*((unsigned char *)(return_block->bl_data) + 2) << 16) + (*((unsigned char *)(return_block->bl_data) + 3) << 8) + (*((unsigned char *)(return_block->bl_data) + 4));
406 }
407 dwarf_dealloc(dbg, return_block, DW_DLA_BLOCK);
408 }
409 break;
410
411 case DW_AT_type:
412 if (dwarf_global_formref(return_attr1, &return_offset, &error) == DW_DLV_OK)
413 {
414 PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].TypeOffset = return_offset;
415 }
416 break;
417
418 case DW_AT_name:
419 if (dwarf_formstring(return_attr1, &return_string, &error) == DW_DLV_OK)
420 {
421 PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].PtrName = (char *)calloc(strlen(return_string) + 1, 1);
422 strcpy(PtrCU[NbCU].PtrVariables[PtrCU[NbCU].NbVariables].PtrName, return_string);
423 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
424 }
425 break;
426
427 default:
428 break;
429 }
430 }
431 }
432
433 dwarf_dealloc(dbg, atlist[i], DW_DLA_ATTR);
434 }
435
436 PtrCU[NbCU].NbVariables++;
437
438 dwarf_dealloc(dbg, atlist, DW_DLA_LIST);
439 }
440 break;
441
442 case DW_TAG_base_type:
443 case DW_TAG_typedef:
444 case DW_TAG_structure_type:
445 case DW_TAG_pointer_type:
446 case DW_TAG_const_type:
447 case DW_TAG_array_type:
448 case DW_TAG_subrange_type:
449 case DW_TAG_subroutine_type:
450 if (dwarf_attrlist(return_die, &atlist, &atcnt, &error) == DW_DLV_OK)
451 {
452 PtrCU[NbCU].PtrTypes = (BaseTypeStruct *)realloc(PtrCU[NbCU].PtrTypes, ((PtrCU[NbCU].NbTypes + 1) * sizeof(BaseTypeStruct)));
453 memset(PtrCU[NbCU].PtrTypes + PtrCU[NbCU].NbTypes, 0, sizeof(BaseTypeStruct));
454 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].Tag = return_tagval;
455
456 if (dwarf_dieoffset(return_die, &return_offset, &error) == DW_DLV_OK)
457 {
458 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].Offset = return_offset;
459 }
460
461 for (Dwarf_Signed i = 0; i < atcnt; ++i)
462 {
463 if (dwarf_whatattr(atlist[i], &return_attr, &error) == DW_DLV_OK)
464 {
465 if (dwarf_attr(return_die, return_attr, &return_attr1, &error) == DW_DLV_OK)
466 {
467 switch (return_attr)
468 {
469 case DW_AT_type:
470 if (dwarf_global_formref(return_attr1, &return_offset, &error) == DW_DLV_OK)
471 {
472 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].TypeOffset = return_offset;
473 }
474 break;
475
476 case DW_AT_byte_size:
477 if (dwarf_formudata(return_attr1, &return_uvalue, &error) == DW_DLV_OK)
478 {
479 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].ByteSize = return_uvalue;
480 }
481 break;
482
483 case DW_AT_encoding:
484 if (dwarf_formudata(return_attr1, &return_uvalue, &error) == DW_DLV_OK)
485 {
486 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].Encoding = return_uvalue;
487 }
488 break;
489
490 case DW_AT_name:
491 if (dwarf_formstring(return_attr1, &return_string, &error) == DW_DLV_OK)
492 {
493 PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].PtrName = (char *)calloc(strlen(return_string) + 1, 1);
494 strcpy(PtrCU[NbCU].PtrTypes[PtrCU[NbCU].NbTypes].PtrName, return_string);
495 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
496 }
497 break;
498
499 default:
500 break;
501 }
502 }
503 }
504
505 dwarf_dealloc(dbg, atlist[i], DW_DLA_ATTR);
506 }
507
508 PtrCU[NbCU].NbTypes++;
509
510 dwarf_dealloc(dbg, atlist, DW_DLA_LIST);
511 }
512 break;
513
514 case DW_TAG_subprogram:
515 if (dwarf_attrlist(return_die, &atlist, &atcnt, &error) == DW_DLV_OK)
516 {
517 PtrCU[NbCU].PtrSubProgs = (SubProgStruct *)realloc(PtrCU[NbCU].PtrSubProgs, ((PtrCU[NbCU].NbSubProgs + 1) * sizeof(SubProgStruct)));
518 memset((void *)(PtrCU[NbCU].PtrSubProgs + PtrCU[NbCU].NbSubProgs), 0, sizeof(SubProgStruct));
519 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].Tag = return_tagval;
520
521 for (Dwarf_Signed i = 0; i < atcnt; ++i)
522 {
523 if (dwarf_whatattr(atlist[i], &return_attr, &error) == DW_DLV_OK)
524 {
525 if (dwarf_attr(return_die, return_attr, &return_attr1, &error) == DW_DLV_OK)
526 {
527 switch (return_attr)
528 {
529 case DW_AT_low_pc:
530 if (dwarf_lowpc(return_die, &return_lowpc, &error) == DW_DLV_OK)
531 {
532 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].StartPC = return_lowpc;
533 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].LowPC = return_lowpc;
534 }
535 break;
536
537 case DW_AT_high_pc:
538 if (dwarf_highpc(return_die, &return_highpc, &error) == DW_DLV_OK)
539 {
540 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].HighPC = return_highpc;
541 }
542 break;
543
544 case DW_AT_decl_line:
545 if (dwarf_formudata(return_attr1, &return_uvalue, &error) == DW_DLV_OK)
546 {
547 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NumLineSrc = return_uvalue;
548 }
549 break;
550
551 case DW_AT_name:
552 if (dwarf_formstring(return_attr1, &return_string, &error) == DW_DLV_OK)
553 {
554 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrSubprogramName = (char *)calloc(strlen(return_string) + 1, 1);
555 strcpy(PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrSubprogramName, return_string);
556 dwarf_dealloc(dbg, return_string, DW_DLA_STRING);
557 }
558 break;
559
560 default:
561 break;
562 }
563 }
564 }
565 dwarf_dealloc(dbg, atlist[i], DW_DLA_ATTR);
566 }
567 dwarf_dealloc(dbg, atlist, DW_DLA_LIST);
568
569 for (i = 0; i < (size_t)cnt; ++i)
570 {
571 if (dwarf_lineaddr(linebuf[i], &return_lineaddr, &error) == DW_DLV_OK)
572 {
573 if (dwarf_lineno(linebuf[i], &return_uvalue, &error) == DW_DLV_OK)
574 {
575 if ((return_lineaddr >= return_lowpc) && (return_lineaddr <= return_highpc))
576 {
577 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc = (DMIStruct_LineSrc *)realloc(PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc, (PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NbLinesSrc + 1) * sizeof(DMIStruct_LineSrc));
578 memset((void *)(PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc + PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NbLinesSrc), 0, sizeof(DMIStruct_LineSrc));
579 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc[PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NbLinesSrc].StartPC = return_lineaddr;
580 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].PtrLinesSrc[PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NbLinesSrc].NumLineSrc = return_uvalue;
581 PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs].NbLinesSrc++;
582 }
583 }
584 }
585 }
586
587 PtrCU[NbCU].NbSubProgs++;
588 }
589 break;
590
591 default:
592 break;
593 }
594 }
595 }
596 while (dwarf_siblingof(dbg, return_sib, &return_die, &error) == DW_DLV_OK);
597 }
598
599 // Release the memory used by the source lines
600 for (i = 0; i < (size_t)cnt; ++i)
601 dwarf_dealloc(dbg, linebuf[i], DW_DLA_LINE);
602 dwarf_dealloc(dbg, linebuf, DW_DLA_LIST);
603 }
604
605 // Set the source code lines for QT html/text conformity
606 if (PtrCU[NbCU].NbLinesLoadSrc)
607 {
608 if (PtrCU[NbCU].PtrLinesLoadSrc = (char **)calloc(PtrCU[NbCU].NbLinesLoadSrc, sizeof(char *)))
609 {
610 for (j = 0; j < PtrCU[NbCU].NbLinesLoadSrc; j++)
611 {
612 if (PtrCU[NbCU].PtrLinesLoadSrc[j] = (char *)calloc(10000, sizeof(char)))
613 {
614 if (Ptr = DWARFManager_GetLineSrcFromNumLine(PtrCU[NbCU].PtrLoadSrc, (j + 1)))
615 {
616 i = 0;
617
618 while (*Ptr)
619 {
620 switch (*Ptr)
621 {
622 case 9:
623 strcat(PtrCU[NbCU].PtrLinesLoadSrc[j], "&nbsp;");
624 i += strlen("&nbsp;");
625 break;
626
627 case '<':
628 strcat(PtrCU[NbCU].PtrLinesLoadSrc[j], "&lt;");
629 i += strlen("&lt;");
630 break;
631
632 case '>':
633 strcat(PtrCU[NbCU].PtrLinesLoadSrc[j], "&gt;");
634 i += strlen("&gt;");
635 break;
636 #if 0
637 case '&':
638 strcpy(PtrCU[NbCU].PtrLinesLoadSrc[j], "&amp;");
639 i += strlen("&amp;");
640 break;
641 #endif
642 #if 0
643 case '"':
644 strcpy(PtrCU[NbCU].PtrLinesLoadSrc[j], "&quot;");
645 i += strlen("&quot;");
646 break;
647 #endif
648 default:
649 PtrCU[NbCU].PtrLinesLoadSrc[j][i++] = *Ptr;
650 break;
651 }
652 Ptr++;
653 }
654 }
655 PtrCU[NbCU].PtrLinesLoadSrc[j] = (char *)realloc(PtrCU[NbCU].PtrLinesLoadSrc[j], i + 1);
656 }
657 }
658 }
659 }
660 else
661 {
662 // Set each source lines pointer to NULL
663 i = PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs - 1].PtrLinesSrc[PtrCU[NbCU].PtrSubProgs[PtrCU[NbCU].NbSubProgs - 1].NbLinesSrc - 1].NumLineSrc;
664 if (PtrCU[NbCU].PtrLinesLoadSrc = (char **)calloc(i, sizeof(char *)))
665 {
666 for (j = 0; j < i; j++)
667 {
668 PtrCU[NbCU].PtrLinesLoadSrc[j] = NULL;
669 }
670 }
671 }
672
673 // Init lines source information based on each source code line numbers
674 for (j = 0; j < PtrCU[NbCU].NbSubProgs; j++)
675 {
676 PtrCU[NbCU].PtrSubProgs[j].PtrLineSrc = PtrCU[NbCU].PtrLinesLoadSrc[PtrCU[NbCU].PtrSubProgs[j].NumLineSrc - 1];
677
678 for (k = 0; k < PtrCU[NbCU].PtrSubProgs[j].NbLinesSrc; k++)
679 {
680 PtrCU[NbCU].PtrSubProgs[j].PtrLinesSrc[k].PtrLineSrc = PtrCU[NbCU].PtrLinesLoadSrc[PtrCU[NbCU].PtrSubProgs[j].PtrLinesSrc[k].NumLineSrc - 1];
681 }
682 }
683
684 // Init variables information based on types information
685 for (i = 0; i < PtrCU[NbCU].NbVariables; i++)
686 {
687 PtrCU[NbCU].PtrVariables[i].PtrTypeName = (char *)calloc(1000, 1);
688 TypeOffset = PtrCU[NbCU].PtrVariables[i].TypeOffset;
689
690 for (j = 0; j < PtrCU[NbCU].NbTypes; j++)
691 {
692 if (TypeOffset == PtrCU[NbCU].PtrTypes[j].Offset)
693 {
694 switch (PtrCU[NbCU].PtrTypes[j].Tag)
695 {
696 case DW_TAG_structure_type:
697 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x1;
698 if ((TypeOffset = PtrCU[NbCU].PtrTypes[j].TypeOffset))
699 {
700 j = -1;
701 }
702 else
703 {
704 if ((PtrCU[NbCU].PtrVariables[i].TypeTag & 0x2))
705 {
706 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, " *");
707 }
708 }
709 break;
710
711 case DW_TAG_pointer_type:
712 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x2;
713 PtrCU[NbCU].PtrVariables[i].TypeByteSize = PtrCU[NbCU].PtrTypes[j].ByteSize;
714 PtrCU[NbCU].PtrVariables[i].TypeEncoding = 0x10;
715 if (!(TypeOffset = PtrCU[NbCU].PtrTypes[j].TypeOffset))
716 {
717 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, "void *");
718 }
719 else
720 {
721 j = -1;
722 }
723 break;
724
725 case DW_TAG_typedef:
726 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x20;
727 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, PtrCU[NbCU].PtrTypes[j].PtrName);
728 if ((TypeOffset = PtrCU[NbCU].PtrTypes[j].TypeOffset))
729 {
730 j = -1;
731 }
732 break;
733
734 case DW_TAG_subrange_type:
735 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x4;
736 break;
737
738 case DW_TAG_array_type:
739 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x8;
740 if ((TypeOffset = PtrCU[NbCU].PtrTypes[j].TypeOffset))
741 {
742 j = -1;
743 }
744 break;
745
746 case DW_TAG_const_type:
747 PtrCU[NbCU].PtrVariables[i].TypeTag |= 0x10;
748 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, "const ");
749 if ((TypeOffset = PtrCU[NbCU].PtrTypes[j].TypeOffset))
750 {
751 j = -1;
752 }
753 break;
754
755 case DW_TAG_base_type:
756 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, PtrCU[NbCU].PtrTypes[j].PtrName);
757 if ((PtrCU[NbCU].PtrVariables[i].TypeTag & 0x2))
758 {
759 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, " *");
760 }
761 else
762 {
763 PtrCU[NbCU].PtrVariables[i].TypeByteSize = PtrCU[NbCU].PtrTypes[j].ByteSize;
764 PtrCU[NbCU].PtrVariables[i].TypeEncoding = PtrCU[NbCU].PtrTypes[j].Encoding;
765 }
766 if ((PtrCU[NbCU].PtrVariables[i].TypeTag & 0x8))
767 {
768 strcat(PtrCU[NbCU].PtrVariables[i].PtrTypeName, "[]");
769 }
770 break;
771
772 default:
773 break;
774 }
775 }
776 }
777 }
778
779 ++NbCU;
780 }
781 }
782
783 free(SourceFilename);
784 free(SourceFileDirectory);
785 free(SourceFullFilename);
786 }
787
788
789 // Get symbol name based from address
790 // Return NULL if no symbol name exists
791 char *DWARFManager_GetSymbolnameFromAdr(size_t Adr)
792 {
793 size_t i, j;
794
795 for (i = 0; i < NbCU; i++)
796 {
797 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
798 {
799 for (j = 0; (j < PtrCU[i].NbSubProgs); j++)
800 {
801 if ((PtrCU[i].PtrSubProgs[j].StartPC == Adr))
802 {
803 return PtrCU[i].PtrSubProgs[j].PtrSubprogramName;
804 }
805 }
806 }
807 }
808
809 return NULL;
810 }
811
812
813 // Get complete source filename based from address
814 // Return NULL if no source filename exists
815 // Return the existence status (true or false) in Error
816 char *DWARFManager_GetFullSourceFilenameFromAdr(size_t Adr, bool *Error)
817 {
818 size_t i;
819
820 for (i = 0; i < NbCU; i++)
821 {
822 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
823 {
824 *Error = PtrCU[i].PtrLoadSrc ? true : false;
825 return PtrCU[i].PtrFullFilename;
826 }
827 }
828
829 return NULL;
830 }
831
832
833 // Get text line source based on line number (starting by 1)
834 // Return NULL if no text line exists or if line number is 0
835 char *DWARFManager_GetLineSrcFromNumLine(char *PtrSrcFile, size_t NumLine)
836 {
837 size_t i = 0;
838 char *PtrLineSrc = NULL;
839
840 if (PtrSrcFile)
841 {
842 while (i != NumLine)
843 {
844 PtrLineSrc = PtrSrcFile;
845 while (*PtrSrcFile++);
846 i++;
847 }
848 }
849
850 return PtrLineSrc;
851 }
852
853
854 // Get Compilation Unit / External variables numbers
855 // Return variables number
856 size_t DWARFManager_GetNbExternalVariables(void)
857 {
858 size_t NbVariables = 0, i;
859
860 for (i = 0; i < NbCU; i++)
861 {
862 NbVariables += PtrCU[i].NbVariables;
863 }
864
865 return NbVariables;
866 }
867
868
869 // Get external variable type name based on his index (starting by 1)
870 // Return NULL if not found
871 // May return NULL if there is not type linked to the variable's index
872 char *DWARFManager_GetExternalVariableTypeName(size_t Index)
873 {
874 size_t i;
875
876 for (i = 0; i < NbCU; i++)
877 {
878 if (PtrCU[i].NbVariables)
879 {
880 if (Index <= PtrCU[i].NbVariables)
881 {
882 return PtrCU[i].PtrVariables[Index - 1].PtrTypeName;
883 }
884 else
885 {
886 Index -= PtrCU[i].NbVariables;
887 }
888 }
889 }
890
891 return NULL;
892 }
893
894
895 // Get external variable's type tag based on his index (starting by 1)
896 // Return 0 if not found
897 size_t DWARFManager_GetExternalVariableTypeTag(size_t Index)
898 {
899 size_t i;
900
901 for (i = 0; i < NbCU; i++)
902 {
903 if (PtrCU[i].NbVariables)
904 {
905 if (Index <= PtrCU[i].NbVariables)
906 {
907 return PtrCU[i].PtrVariables[Index - 1].TypeTag;
908 }
909 else
910 {
911 Index -= PtrCU[i].NbVariables;
912 }
913 }
914 }
915
916 return 0;
917 }
918
919
920 // Get external variable byte size based on his index (starting by 1)
921 // Return 0 if not found
922 size_t DWARFManager_GetExternalVariableTypeByteSize(size_t Index)
923 {
924 size_t i;
925
926 for (i = 0; i < NbCU; i++)
927 {
928 if (PtrCU[i].NbVariables)
929 {
930 if (Index <= PtrCU[i].NbVariables)
931 {
932 return PtrCU[i].PtrVariables[Index - 1].TypeByteSize;
933 }
934 else
935 {
936 Index -= PtrCU[i].NbVariables;
937 }
938 }
939 }
940
941 return 0;
942 }
943
944
945 // Get external variable encoding based on his index (starting by 1)
946 // Return 0 if not found
947 size_t DWARFManager_GetExternalVariableTypeEncoding(size_t Index)
948 {
949 size_t i;
950
951 for (i = 0; i < NbCU; i++)
952 {
953 if (PtrCU[i].NbVariables)
954 {
955 if (Index <= PtrCU[i].NbVariables)
956 {
957 return PtrCU[i].PtrVariables[Index - 1].TypeEncoding;
958 }
959 else
960 {
961 Index -= PtrCU[i].NbVariables;
962 }
963 }
964 }
965
966 return 0;
967 }
968
969
970 // Get external variable address based on his index (starting by 1)
971 // Return 0 if not found
972 size_t DWARFManager_GetExternalVariableAdr(size_t Index)
973 {
974 size_t i;
975
976 for (i = 0; i < NbCU; i++)
977 {
978 if (PtrCU[i].NbVariables)
979 {
980 if (Index <= PtrCU[i].NbVariables)
981 {
982 return PtrCU[i].PtrVariables[Index - 1].Addr;
983 }
984 else
985 {
986 Index -= PtrCU[i].NbVariables;
987 }
988 }
989 }
990
991 return 0;
992 }
993
994
995 // Get external variable memory address based on his name
996 // Return 0 if not found
997 // Note: Return the first occurence found
998 size_t DWARFManager_GetExternalVariableAdrFromName(char *VariableName)
999 {
1000 size_t i, j;
1001
1002 for (i = 0; i < NbCU; i++)
1003 {
1004 if (PtrCU[i].NbVariables)
1005 {
1006 for (j = 0; j < PtrCU[i].NbVariables; j++)
1007 {
1008 if (!strcmp(PtrCU[i].PtrVariables[j].PtrName,VariableName))
1009 {
1010 return PtrCU[i].PtrVariables[j].Addr;
1011 }
1012 }
1013 }
1014 }
1015
1016 return 0;
1017 }
1018
1019
1020 // Get external variable name based on his index (starting by 1)
1021 // Return name's pointer text found
1022 // Return NULL if not found
1023 char *DWARFManager_GetExternalVariableName(size_t Index)
1024 {
1025 size_t i;
1026
1027 for (i = 0; i < NbCU; i++)
1028 {
1029 if (PtrCU[i].NbVariables)
1030 {
1031 if (Index <= PtrCU[i].NbVariables)
1032 {
1033 return PtrCU[i].PtrVariables[Index - 1].PtrName;
1034 }
1035 else
1036 {
1037 Index -= PtrCU[i].NbVariables;
1038 }
1039 }
1040 }
1041
1042 return NULL;
1043 }
1044
1045
1046 // Get text line from source based on address and his tag
1047 // Return NULL if no text line has been found
1048 char *DWARFManager_GetLineSrcFromAdr(size_t Adr, size_t Tag)
1049 {
1050 size_t i, j, k;
1051
1052 for (i = 0; i < NbCU; i++)
1053 {
1054 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
1055 {
1056 for (j = 0; j < PtrCU[i].NbSubProgs; j++)
1057 {
1058 if ((Adr >= PtrCU[i].PtrSubProgs[j].LowPC) && (Adr < PtrCU[i].PtrSubProgs[j].HighPC))
1059 {
1060 if ((PtrCU[i].PtrSubProgs[j].StartPC == Adr) && (!Tag || (Tag == DW_TAG_subprogram)))
1061 {
1062 return PtrCU[i].PtrSubProgs[j].PtrLineSrc;
1063 }
1064 else
1065 {
1066 for (k = 0; k < PtrCU[i].PtrSubProgs[j].NbLinesSrc; k++)
1067 {
1068 if ((PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].StartPC == Adr) && (!Tag || (PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].Tag == Tag)))
1069 {
1070 return PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].PtrLineSrc;
1071 }
1072 }
1073 }
1074 }
1075 }
1076 }
1077 }
1078
1079 return NULL;
1080 }
1081
1082
1083 // Get line number based on the address and the tag
1084 // Return 0 if no line number has been found
1085 size_t DWARFManager_GetNumLineFromAdr(size_t Adr, size_t Tag)
1086 {
1087 size_t i, j, k;
1088
1089 for (i = 0; i < NbCU; i++)
1090 {
1091 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
1092 {
1093 for (j = 0; (j < PtrCU[i].NbSubProgs); j++)
1094 {
1095 if ((Adr >= PtrCU[i].PtrSubProgs[j].LowPC) && (Adr < PtrCU[i].PtrSubProgs[j].HighPC))
1096 {
1097 if ((PtrCU[i].PtrSubProgs[j].StartPC == Adr) && (!Tag || (Tag == DW_TAG_subprogram)))
1098 {
1099 return PtrCU[i].PtrSubProgs[j].NumLineSrc;
1100 }
1101 else
1102 {
1103 for (k = 0; (k < PtrCU[i].PtrSubProgs[j].NbLinesSrc); k++)
1104 {
1105 if ((PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].StartPC == Adr) && (!Tag || (PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].Tag == Tag)))
1106 {
1107 return PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].NumLineSrc;
1108 }
1109 }
1110 }
1111 #if 0
1112 if (!Tag || (Tag == DW_TAG_subprogram))
1113 {
1114 return PtrCU[i].PtrSubProgs[j].NumLineSrc;
1115 }
1116 #endif
1117 }
1118 }
1119 }
1120 }
1121
1122 return 0;
1123 }
1124
1125
1126 // Get text line from source based on address and num line (starting by 1)
1127 // Return NULL if no text line has been found
1128 char *DWARFManager_GetLineSrcFromAdrNumLine(size_t Adr, size_t NumLine)
1129 {
1130 size_t i, j, k;
1131
1132 for (i = 0; i < NbCU; i++)
1133 {
1134 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
1135 {
1136 for (j = 0; j < PtrCU[i].NbSubProgs; j++)
1137 {
1138 if ((Adr >= PtrCU[i].PtrSubProgs[j].LowPC) && (Adr < PtrCU[i].PtrSubProgs[j].HighPC))
1139 {
1140 if (PtrCU[i].PtrSubProgs[j].NumLineSrc == NumLine)
1141 {
1142 return PtrCU[i].PtrSubProgs[j].PtrLineSrc;
1143 }
1144 else
1145 {
1146 for (k = 0; k < PtrCU[i].PtrSubProgs[j].NbLinesSrc; k++)
1147 {
1148 if (PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].NumLineSrc == NumLine)
1149 {
1150 return PtrCU[i].PtrSubProgs[j].PtrLinesSrc[k].PtrLineSrc;
1151 }
1152 }
1153 }
1154 }
1155 }
1156 }
1157 }
1158
1159 return NULL;
1160 }
1161
1162
1163 // Get text line from source based on address and num line (starting by 1)
1164 // Return NULL if no text line has been found
1165 char *DWARFManager_GetLineSrcFromNumLineBaseAdr(size_t Adr, size_t NumLine)
1166 {
1167 size_t i;
1168
1169 for (i = 0; i < NbCU; i++)
1170 {
1171 if ((Adr >= PtrCU[i].LowPC) && (Adr < PtrCU[i].HighPC))
1172 {
1173 return PtrCU[i].PtrLinesLoadSrc[NumLine - 1];
1174 }
1175 }
1176
1177 return NULL;
1178 }
1179
Unnamed repository; edit this file 'description' to name the repository.