source: trunk/tools/dbginfo/kHll.cpp@ 3311

Last change on this file since 3311 was 3286, checked in by bird, 26 years ago

IBMSRC record somewhat dumpable.
File size: 26.1 KB
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1/* $Id: kHll.cpp,v 1.9 2000-03-31 15:35:09 bird Exp $
2 *
3 * kHll - Implementation of the class kHll.
4 * That class is used to create HLL debuginfo.
5 *
6 * Copyright (c) 2000 knut st. osmundsen (knut.stange.osmundsen@pmsc.no)
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12
13/*******************************************************************************
14* Defined Constants And Macros *
15*******************************************************************************/
16#define INCL_TYPES
17#define INCL_DOSERRORS
18#define FOR_EXEHDR 1 /* exe386.h flag */
19#define DWORD ULONG /* Used by exe386.h / newexe.h */
20#define WORD USHORT /* Used by exe386.h / newexe.h */
21
22
23/*******************************************************************************
24* Internal Functions *
25*******************************************************************************/
26#include <os2.h>
27#include <newexe.h>
28#include <exe386.h>
29
30#include <malloc.h>
31#include <stdio.h>
32#include <string.h>
33#include <stddef.h>
34#include <stdlib.h>
35#include <assert.h>
36
37#include "hll.h"
38#include "kList.h"
39#include "kHll.h"
40
41
42/*******************************************************************************
43* Internal Functions *
44*******************************************************************************/
45signed long fsize(FILE *phFile);
46
47
48
49
50/*******************************************************************************
51* *
52* kHllBaseEntry *
53* *
54* kHllBaseEntry *
55* *
56*******************************************************************************/
57
58
59/**
60 * Writes a list to disk.
61 * @returns Number of bytes written.
62 * @returns Count of bytes written on success. (includes 0)
63 * -3 Invalid offsets.
64 * -2 Seek error.
65 * -1 Write error.
66 * @param phFile Output filehandle.
67 * @param pEntry Pointer to the start of the list which is to be written.
68 */
69int kHllBaseEntry::writeList(FILE *phFile, kHllBaseEntry *pEntry)
70{
71 int cch;
72 int cchWritten = 0;
73
74 /*
75 * Loop thru the list and write all the entries to disk.
76 */
77 while (pEntry != NULL)
78 {
79 cchWritten += cch = pEntry->write(phFile);
80 if (cch < 0)
81 return cch;
82 if (cch == 0)
83 return -1;
84 pEntry = (kHllBaseEntry*)pEntry->getNext();
85 }
86
87 return cchWritten;
88}
89
90
91
92
93
94
95/*******************************************************************************
96* *
97* kHllPubSymEntry *
98* *
99* kHllPubSymEntry *
100* *
101*******************************************************************************/
102
103
104
105/**
106 * Creates an HLL public symbol entry.
107 * @param pachName Symbol name.
108 * @param cchName Length of symbol name.
109 * @param off Offset into the object.
110 * @param iObject LX Object index.
111 * @param iType Type index. (index into type table)
112 */
113kHllPubSymEntry::kHllPubSymEntry(
114 const char * pachName,
115 int cchName,
116 unsigned long off,
117 unsigned short iObject,
118 unsigned short iType
119 )
120{
121 pPubSym = (PHLLPUBLICSYM)malloc(cchName + sizeof(HLLPUBLICSYM));
122 assert(pPubSym != NULL);
123
124 pPubSym->cchName = cchName;
125 pPubSym->achName[0] = '\0';
126 strncat((char*)&pPubSym->achName[0], pachName, cchName);
127 pPubSym->off = off;
128 pPubSym->iObject = iObject;
129 pPubSym->iType = iType;
130}
131
132
133
134/**
135 * Destructor.
136 */
137kHllPubSymEntry::~kHllPubSymEntry()
138{
139 if (pPubSym != NULL)
140 free(pPubSym);
141 pPubSym = NULL;
142}
143
144
145
146/**
147 * Write this entry to file.
148 * @returns Number of bytes written.
149 * @param phFile File handle.
150 */
151int kHllPubSymEntry::write(FILE *phFile)
152{
153 assert(pPubSym != NULL);
154 return fwrite(pPubSym,
155 1,
156 offsetof(HLLPUBLICSYM, achName) + pPubSym->cchName,
157 phFile);
158}
159
160
161
162
163
164/*******************************************************************************
165* *
166* kHllModuleEntry *
167* *
168* kHllModuleEntry *
169* *
170*******************************************************************************/
171
172
173
174
175
176
177
178/**
179 * Creates an HLL module entry.
180 * @param pszName Module name. (NULL is not allowed!)
181 * @param iLib Library index.
182 * @param cSegInfo Number of objects in the array.
183 * @param paSegInfo Pointer to an array of objects.
184 */
185kHllModuleEntry::kHllModuleEntry(
186 const char * pszName,
187 unsigned short iLib,
188 unsigned char cSegInfo/*= 0 */,
189 PHLLSEGINFO paSegInfo/*= NULL */
190 )
191: fValidOffsetsAndSizes(FALSE)
192{
193 int i;
194 int cchName;
195 PHLLSEGINFO pSegInfo;
196
197 /*
198 * Debug parameter validations.
199 */
200 assert(pszName != NULL);
201 assert(cSegInfo == 0 || paSegInfo != NULL);
202
203 /*
204 * Allocate data storage and fill HLL structure.
205 */
206 cchName = strlen(pszName);
207 pModule = (PHLLMODULE)malloc(sizeof(HLLMODULE) + cchName +
208 sizeof(HLLSEGINFO) * max((cSegInfo - 1), 3));
209 assert(pModule != NULL);
210 memset(pModule, 0, sizeof(*pModule));
211 pModule->cchName = cchName;
212 strcpy((char*)&pModule->achName[0], pszName);
213 pModule->chVerMajor = 4;
214 pModule->chVerMinor = 0;
215 pModule->cSegInfo = cSegInfo;
216 pModule->iLib = iLib;
217 pModule->usDebugStyle = HLL_MOD_STYLE;
218 pModule->overlay = 0;
219 pModule->pad = 0;
220
221 /* objects */
222 if (cSegInfo > 0)
223 {
224 pModule->SegInfo0.iObject = paSegInfo->iObject;
225 pModule->SegInfo0.cb = paSegInfo->cb;
226 pModule->SegInfo0.off = paSegInfo->off;
227
228 for (i = 1, pSegInfo = (PHLLSEGINFO)&pModule->achName[cchName]; i < cSegInfo; i++, pSegInfo++)
229 {
230 pSegInfo->iObject = paSegInfo[i].iObject;
231 pSegInfo->cb = paSegInfo[i].cb;
232 pSegInfo->off = paSegInfo[i].off;
233 }
234 }
235}
236
237
238/**
239 * Destructor - free storage.
240 */
241kHllModuleEntry::~kHllModuleEntry()
242{
243 if (pModule != NULL)
244 free(pModule);
245 pModule = NULL;
246}
247
248
249
250/**
251 * Adds an object to the module.
252 * @returns Success indicator.
253 * @param iObject LX Object index.
254 * @param off Offset into the object to the module data.
255 * @param cb Size of module data (in the object).
256 */
257BOOL kHllModuleEntry::addSegInfo(
258 unsigned short int iObject,
259 unsigned long off,
260 unsigned long cb
261 )
262{
263 assert(pModule != NULL);
264
265 /*
266 * Reallocate? (Note that we'll initially allocated space for 3 objects.)
267 */
268 if (pModule->cSegInfo >= 3)
269 {
270 void *pv = realloc(pModule, sizeof(HLLMODULE) + pModule->cchName
271 + (pModule->cSegInfo + 1) * sizeof(HLLSEGINFO));
272 assert(pv != NULL);
273 if (pv == NULL)
274 return FALSE;
275 pModule = (PHLLMODULE)pv;
276 }
277
278
279 /*
280 * Add module.
281 */
282 if (pModule->cSegInfo == 0)
283 {
284 pModule->SegInfo0.cb = cb;
285 pModule->SegInfo0.off = off;
286 pModule->SegInfo0.iObject = iObject;
287 }
288 else
289 {
290 PHLLSEGINFO pSegInfo = (PHLLSEGINFO)((pModule->cSegInfo - 1) * sizeof(HLLSEGINFO)
291 + &pModule->achName[pModule->cchName]);
292 pSegInfo->cb = cb;
293 pSegInfo->off = off;
294 pSegInfo->iObject = iObject;
295 }
296 pModule->cSegInfo++;
297
298 return TRUE;
299}
300
301
302
303/**
304 * Adds a public symbol.
305 * @returns Handle to the symbol. NULL on error.
306 * @param pszName Symbol name.
307 * @param off Offset into the LX Object of the symbol.
308 * @param iObject LX Object index.
309 * @param pvType Type handle. NULL if not type.
310 */
311const void * kHllModuleEntry::addPublicSymbol(
312 const char * pszName,
313 unsigned long int off,
314 unsigned short int iObject,
315 const void * pvType
316 )
317{
318 assert(pszName != NULL);
319 return addPublicSymbol(pszName, strlen(pszName), off, iObject, pvType);
320}
321
322
323
324/**
325 * Adds a public symbol.
326 * @returns Handle to the symbol. NULL on error.
327 * @param pachName Symbol name.
328 * @param cchName Name length.
329 * @param off Offset into the LX Object of the symbol.
330 * @param iObject LX Object index.
331 * @param pvType Type handle. NULL if not type.
332 */
333const void * kHllModuleEntry::addPublicSymbol(
334 const char * pachName,
335 int cchName,
336 unsigned long int off,
337 unsigned short int iObject,
338 const void * pvType
339 )
340{
341 kHllPubSymEntry * pEntry;
342
343 /* parameter assertion */
344 assert(pachName != NULL);
345
346 /*
347 * Create a public symbol entry
348 * Insert into it's list.
349 * Invalidate offsets.
350 */
351 pEntry = new kHllPubSymEntry(
352 pachName,
353 cchName,
354 off,
355 iObject,
356 pvType == NULL ? 0 : -1 //FIXME/TODO: Types->getIndex(pvType); check if 0 or -1.
357 );
358
359 PublicSymbols.insert(pEntry);
360
361 fValidOffsetsAndSizes = FALSE;
362
363 return pEntry;
364}
365
366
367
368
369/**
370 * Write this HLL entry to file.
371 * @returns Count of bytes written. -1 on error.
372 * @param phFile Filehandle.
373 * @param off Current offset into the HLL data.
374 * This is stored and used when making the directory
375 * entries for this module.
376 */
377int kHllModuleEntry::write(FILE *phFile, unsigned long off)
378{
379 int cch;
380 int cchToWrite;
381 int cchWritten = 0;
382
383 /* validate object state */
384 assert(pModule != NULL);
385
386 /*
387 * Write module HLL data.
388 */
389 offModule = off;
390 cchToWrite = offsetof(HLLMODULE, achName) + pModule->cchName + sizeof(HLLSEGINFO) * max(pModule->cSegInfo-1, 0);
391 cch = fwrite(pModule, 1, cchToWrite, phFile);
392 if (cch != cchToWrite)
393 return -1;
394 cchWritten += cch;
395 cbModule = cch;
396 off += cch;
397
398 /*
399 * Write the lists.
400 * Public Symbols
401 * Types
402 * Symbols
403 * Source
404 */
405 offPublicSymbols = off;
406 cbPublicSymbols = cch = kHllBaseEntry::writeList(phFile, PublicSymbols.getFirst());
407 if (cch < 0)
408 return cch;
409 cchWritten += cch;
410 off += cch;
411
412 /*
413 offTypes = off;
414 cbTypes = cch = kHllBaseEntry::writeList(phFile, Types.getFirst());
415 if (cch < 0)
416 return cch;
417 cchWritten += cch;
418 off += cch;
419
420
421 offSymbols = off;
422 cbSymbols = cch = kHllBaseEntry::writeList(phFile, Symbols.getFirst());
423 if (cch < 0)
424 return cch;
425 cchWritten += cch;
426 off += cch;
427
428 offSource = off;
429 cbSource = cch = kHllBaseEntry::writeList(phFile, Source.getFirst());
430 if (cch < 0)
431 return cch;
432 cchWritten += cch;
433 off += cch;
434 */
435
436 /*
437 * Marks offsets and sizes valid and returns succesfully.
438 */
439 fValidOffsetsAndSizes = TRUE;
440 return cchWritten;
441}
442
443
444
445/**
446 * Writes the directory entries for this module to file.
447 * @returns Count of bytes written on success.
448 * -3 Invalid offsets.
449 * -2 Seek error.
450 * -1 Write error.
451 * 0 no data written (this is an error condition!)
452 * @param phFile Filehandle.
453 * @param iMod Index of this module.
454 */
455int kHllModuleEntry::writeDirEntries(FILE *phFile, unsigned short iMod)
456{
457 HLLDIRENTRY hllDirEntry;
458 int cch;
459 int cchWritten = 0;
460
461 /*
462 * Check that offsets are valid!
463 */
464 assert(fValidOffsetsAndSizes);
465 if (!fValidOffsetsAndSizes)
466 return -3;
467
468 /*
469 * Write Directory Entries.
470 * Module.
471 * Public Symbols. (if any)
472 * Types. (if any)
473 * Symbols. (if any)
474 * Source. (if any)
475 */
476 hllDirEntry.usType = HLL_DE_MODULES;
477 hllDirEntry.cb = cbModule;
478 hllDirEntry.off = offModule;
479 hllDirEntry.iMod = iMod;
480 cch = fwrite(&hllDirEntry, 1, sizeof(hllDirEntry), phFile);
481 if (cch != sizeof(hllDirEntry))
482 return -1;
483 cchWritten += cch;
484
485 if (cbPublicSymbols > 0)
486 {
487 hllDirEntry.usType = HLL_DE_PUBLICS;
488 hllDirEntry.cb = cbPublicSymbols;
489 hllDirEntry.off = offPublicSymbols;
490 hllDirEntry.iMod = iMod;
491 cch = fwrite(&hllDirEntry, 1, sizeof(hllDirEntry), phFile);
492 if (cch != sizeof(hllDirEntry))
493 return -1;
494 cchWritten += cch;
495 }
496
497 /*
498 if (cbTypes > 0)
499 {
500 hllDirEntry.usType = HLL_DE_TYPES;
501 hllDirEntry.cb = cbTypes;
502 hllDirEntry.off = offTypes;
503 hllDirEntry.iMod = iMod;
504 cch = fwrite(&hllDirEntry, 1, sizeof(hllDirEntry), phFile);
505 if (cch != sizeof(hllDirEntry))
506 return -1;
507 cchWritten += cch;
508 }
509
510 if (cbSymbols > 0)
511 {
512 hllDirEntry.usType = HLL_DE_SYMBOLS;
513 hllDirEntry.cb = cbSymbols;
514 hllDirEntry.off = offSymbols;
515 hllDirEntry.iMod = iMod;
516 cch = fwrite(&hllDirEntry, 1, sizeof(hllDirEntry), phFile);
517 if (cch != sizeof(hllDirEntry))
518 return -1;
519 cchWritten += cch;
520 }
521
522 if (cbSource > 0)
523 {
524 hllDirEntry.usType = HLL_DE_IBMSRC;
525 hllDirEntry.cb = cbSource;
526 hllDirEntry.off = offSource;
527 hllDirEntry.iMod = iMod;
528 cch = fwrite(&hllDirEntry, 1, sizeof(hllDirEntry), phFile);
529 if (cch != sizeof(hllDirEntry))
530 return -1;
531 cchWritten += cch;
532 }
533
534 */
535
536 return cchWritten;
537}
538
539
540
541
542
543
544
545
546
547
548
549
550/*******************************************************************************
551* *
552* kHll *
553* *
554* kHll *
555* *
556*******************************************************************************/
557
558
559
560/**
561 * Writes HLL debuginfo to the given file at the current position.
562 * The file should be opened in write mode.
563 * @returns Number of bytes written.
564 * @param phFile Filehandle to output file. Starts writing at current pos.
565 */
566int kHll::write(FILE *phFile)
567{
568 HLLHDR hllHdr;
569 HLLDIR hllDir;
570 kHllModuleEntry * pModule;
571 int cch; /* Number of bytes written to the file in an operation. */
572 int cchWritten = 0; /* Number of bytes written to the file. */
573 long int lPosStart; /* Starting position. */
574 long int lPosDir; /* Directory position. */
575 long int lPos; /* A file position. */
576 int iMod; /* Module index (passed in to writeDirEntries) */
577
578 /* Get starting position. */
579 lPosStart = ftell(phFile);
580
581 /* Make temporary header and write it */
582 memcpy(hllHdr.achSignature, "NB04", 4);
583 hllHdr.offDirectory = 0;
584 cch = fwrite(&hllHdr, 1, sizeof(hllHdr), phFile);
585 if (cch != sizeof(hllHdr))
586 return -1;
587 cchWritten += cch;
588
589
590 /*
591 * Start writing modules
592 */
593 pModule = (kHllModuleEntry*)Modules.getFirst();
594 while (pModule != NULL)
595 {
596 cch = pModule->write(phFile, cchWritten);
597 if (cch <= 0)
598 return cch;
599 cchWritten += cch;
600 pModule = (kHllModuleEntry *)pModule->getNext();
601 }
602
603
604 /*
605 * Write libraries.
606 */
607 //Not implemented yet - TODO/FIXME!
608
609
610 /*
611 * Write directory.
612 * Make and write temporary directory header.
613 * Write directory entries per module.
614 * Write directory entry for libraries.
615 * Remake and rewrite directory header. (correct cEntries)
616 */
617 lPosDir = ftell(phFile);
618 hllDir.cEntries = 0;
619 hllDir.cb = offsetof(HLLDIR, aEntries);
620 hllDir.cbEntry = sizeof(HLLDIRENTRY);
621 cch = fwrite(&hllDir, 1, offsetof(HLLDIR, aEntries), phFile);
622 if (cch != offsetof(HLLDIR, aEntries))
623 return -1;
624 cchWritten += cch;
625
626 iMod = 1;
627 pModule = (kHllModuleEntry*)Modules.getFirst();
628 while (pModule != NULL)
629 {
630 cch = pModule->writeDirEntries(phFile, iMod);
631 if (cch == -1)
632 return -1;
633 cchWritten += cch;
634 pModule = (kHllModuleEntry *)pModule->getNext();
635 iMod++;
636 }
637
638 //Library - TODO/FIXME
639
640 lPos = ftell(phFile);
641 hllDir.cEntries = (lPos - lPosDir - offsetof(HLLDIR, aEntries)) / sizeof(HLLDIRENTRY);
642 if (fseek(phFile, lPosDir, SEEK_SET) != 0)
643 return -2;
644 cch = fwrite(&hllDir, 1, offsetof(HLLDIR, aEntries), phFile);
645 if (cch != offsetof(HLLDIR, aEntries))
646 return -1;
647
648 /*
649 * Rewrite HLL header (with correct directory offset).
650 */
651 hllHdr.offDirectory = lPosDir - lPosStart;
652 if (fseek(phFile, lPosStart, SEEK_SET) != 0)
653 return -2;
654 cch = fwrite(&hllHdr, 1, sizeof(hllHdr), phFile);
655 if (cch != sizeof(hllHdr))
656 return -1;
657
658 /*
659 * Hacking:
660 * Writing an extra HLL header pointing to an non-existing directory
661 * staring at the last byte of this header. This is present when linking
662 * with ilink...
663 */
664 if (fseek(phFile, lPosStart + cchWritten, SEEK_SET) != 0)
665 return -2;
666 hllHdr.offDirectory = cchWritten + sizeof(hllHdr) - 1;
667 cch = fwrite(&hllHdr, 1, sizeof(hllHdr), phFile);
668 if (cch != sizeof(hllHdr))
669 return -1;
670 cchWritten += cch;
671
672 return cchWritten;
673}
674
675
676
677/**
678 * Constructor - Creates an empty HLL object.
679 */
680kHll::kHll()
681{
682}
683
684
685
686/**
687 * Destructor.
688 */
689kHll::~kHll()
690{
691}
692
693
694
695/**
696 * Adds a module.
697 * @returns Pointer to the module object added. NULL on error.
698 * @param pszName Module name
699 * @param pvLib Library module handle.
700 * @param cSegInfo Number of objects in the array.
701 * @param paSegInfo Pointer to an array of objects.
702 */
703kHllModuleEntry * kHll::addModule(
704 const char * pszName,
705 const void * pvLib,
706 unsigned cSegInfo,
707 PHLLSEGINFO paSegInfo)
708{
709 kHllModuleEntry * pEntry;
710 assert(pszName != NULL);
711
712 pEntry = new kHllModuleEntry(
713 pszName,
714 pvLib == NULL ? 0 : -1, //FIXME/TODO: Libs->getIndex(pvLib); check if 0 or -1;
715 cSegInfo,
716 paSegInfo);
717
718 Modules.insert(pEntry);
719 return pEntry;
720}
721
722
723
724/**
725 * Adds a module.
726 * @returns Pointer to the module object added. NULL on error.
727 * @param pachName Module name
728 * @param cchName Length of modulename
729 * @param pvLib Library module handle.
730 * @param cSegInfo Number of objects in the array.
731 * @param paSegInfo Pointer to an array of objects.
732 */
733kHllModuleEntry * kHll::addModule(
734 const char * pachName,
735 unsigned cchName,
736 const void * pvLib,
737 unsigned cSegInfo,
738 PHLLSEGINFO paSegInfo)
739{
740 char szModName[256];
741 kHllModuleEntry * pEntry;
742 assert(pachName != NULL && cchName > 0);
743
744 szModName[0] = '\0';
745 strncat(szModName, pachName, min(cchName, 255));
746 pEntry = new kHllModuleEntry(
747 szModName,
748 pvLib == NULL ? 0 : -1, //FIXME/TODO: Libs->getIndex(pvLib); check if 0 or -1;
749 cSegInfo,
750 paSegInfo);
751
752 Modules.insert(pEntry);
753 return pEntry;
754}
755
756
757
758/**
759 * Writes the HLL info to a file. (Not LX?)
760 * @returns Success indicator.
761 * @param pszFilename Name of the output file.
762 * @remark IMPORTANT! This is mostly for debugging!
763 * It completely overwrites the file if it exists!
764 */
765BOOL kHll::write(
766 const char *pszFilename
767 )
768{
769 FILE * phFile;
770
771 phFile = fopen(pszFilename, "wb");
772 if (phFile != NULL)
773 {
774 int cch = write(phFile);
775 if (cch > 0)
776 {
777 fclose(phFile);
778 return TRUE;
779 }
780 else
781 fprintf(stderr, "write failed with cch=%d\n", cch);
782 fclose(phFile);
783 }
784
785 return FALSE;
786}
787
788
789
790/**
791 * Writes the HLL info to a file. (Not LX?)
792 * Failes if there is debuginfo in the file.
793 * No backup is made. (sorry)
794 * @returns OS2 return code.
795 * @param pszFilename Name of the output file.
796 */
797APIRET kHll::writeToLX(
798 const char *pszFilename
799 )
800{
801 APIRET rc;
802 FILE * phFile;
803
804 phFile = fopen(pszFilename, "rb+");
805 if (phFile != NULL)
806 {
807 struct exe_hdr ehdr;
808 struct e32_exe e32;
809 int cch;
810 long lPosLXHdr;
811 long cbLXFile;
812
813 /*
814 * Read exe header
815 */
816 cch = fread(&ehdr, 1, sizeof(ehdr), phFile);
817 if (cch == sizeof(ehdr))
818 {
819 cbLXFile = fsize(phFile);
820 if (ehdr.e_magic == EMAGIC)
821 lPosLXHdr = ehdr.e_lfanew;
822 else
823 lPosLXHdr = 0;
824 if (fseek(phFile, lPosLXHdr, SEEK_SET) == 0)
825 {
826 cch = fread(&e32, 1, sizeof(e32), phFile);
827 if (cch == sizeof(e32))
828 {
829 if (*(unsigned short*)&e32.e32_magic[0] == E32MAGIC)
830 {
831 /*
832 * Found exeheader.
833 * Check if there is any debug info.
834 */
835 if ((e32.e32_debuginfo == 0 && e32.e32_debuginfo == 0)
836 || (cbLXFile == e32.e32_debuglen + e32.e32_debuginfo)
837 )
838 {
839 long lPosDebug;
840
841 if (e32.e32_debuginfo != 0 && e32.e32_debuglen != 0)
842 lPosDebug = e32.e32_debuginfo;
843 else
844 lPosDebug = cbLXFile;
845
846 /*
847 * Go to debug info position in the file and write debug info.
848 */
849 if (fseek(phFile, lPosDebug, SEEK_SET) == 0)
850 {
851 /*
852 * Write the HLL data to disk.
853 */
854 cch = write(phFile);
855 if (cch > 0)
856 {
857 /*
858 * Update exeheader.
859 */
860 e32.e32_debuglen = cch;
861 e32.e32_debuginfo = lPosDebug;
862 if (fseek(phFile, lPosLXHdr, SEEK_SET) == 0)
863 {
864 /*
865 * Write the updated header to disk.
866 */
867 cch = fwrite(&e32, 1, sizeof(e32), phFile);
868 if (cch == sizeof(e32))
869 rc = NO_ERROR;
870 else
871 rc = ERROR_WRITE_FAULT;
872 }
873 else
874 rc = ERROR_SEEK;
875 }
876 else
877 {
878 fprintf(stderr, "error - write failed with cch=%d\n", cch);
879 rc = ERROR_WRITE_FAULT;
880 }
881 }
882 else
883 rc = ERROR_SEEK;
884 }
885 else
886 {
887 fprintf(stderr, "error - debuginfo exists\n");
888 rc = ERROR_BAD_EXE_FORMAT;
889 }
890
891 }
892 else
893 rc = ERROR_INVALID_EXE_SIGNATURE;
894 }
895 else
896 rc = ERROR_BAD_EXE_FORMAT;
897 }
898 else
899 rc = ERROR_BAD_EXE_FORMAT;
900 }
901 else
902 rc = ERROR_READ_FAULT;
903
904 fclose(phFile);
905 }
906 else
907 rc = ERROR_ACCESS_DENIED; //?
908
909
910 return rc;
911}
912
913
914/**
915 * Find the size of a file.
916 * @returns Size of file. -1 on error.
917 * @param phFile File handle.
918 */
919signed long fsize(FILE *phFile)
920{
921 int ipos;
922 signed long cb;
923
924 if ((ipos = ftell(phFile)) < 0
925 ||
926 fseek(phFile, 0, SEEK_END) != 0
927 ||
928 (cb = ftell(phFile)) < 0
929 ||
930 fseek(phFile, ipos, SEEK_SET) != 0
931 )
932 cb = -1;
933 return cb;
934}
935
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