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codeview.c
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/***************************************************************************
*
* Copyright (c) 1997, 1998 Timpanogas Research Group, Inc. All Rights
* Reserved.
*
* AUTHOR : Jeff V. Merkey
* FILE : CODEVIEW.C
* DESCRIP : Microsoft/Borland Codeview Support for MANOS v1.0
* DATE : January 10, 1998
*
***************************************************************************/
#include "stdarg.h"
#include "stdio.h"
#include "stdlib.h"
#include "ctype.h"
#include "string.h"
#include "kernel.h"
#include "keyboard.h"
#include "screen.h"
#include "types.h"
#include "emit.h"
#include "dos.h"
#include "tss.h"
#include "os.h"
#include "mps.h"
#include "hal.h"
#include "timer.h"
#include "dosfile.h"
#include "peexe.h"
#include "line.h"
#include "loader.h"
#include "malloc.h"
#include "free.h"
#include "trees.h"
#include "symbols.h"
#include "exports.h"
#include "codeview.h"
// OS initialization only
extern LONG StartOfHighMemory;
extern LONG HighMemoryLength;
LONG CVStartOfHighMemory;
LONG CVHighMemoryLength;
LONG CVMemorySize = 0;
BYTE *GetSymbolDescription(LONG type)
{
switch (type)
{
case S_GDATA32:
return "S_GDATA32 ";
case S_GPROC32:
return "S_GPROC32 ";
case S_GPROCREF:
return "S_GPROCREF ";
case S_GDATAREF:
return "S_GDATAREF ";
case S_UDT:
return "S_UDT ";
case S_ENTRY32:
return "S_ENTRY32 ";
case S_COMPILE:
return "S_COMPILE ";
case S_REGISTER:
return "S_REGISTER ";
case S_CONST:
return "S_CONST ";
case S_SSEARCH:
return "S_SSEARCH ";
case S_END:
return "S_END ";
case S_SKIP:
return "S_SKIP ";
case S_CVRESERVE:
return "S_CVRESERVE ";
case S_OBJNAME:
return "S_OBJNAME ";
case S_EDATA:
return "S_EDATA ";
case S_EPROC:
return "S_EPROC ";
case S_BPREL16:
return "S_BPREL16 ";
case S_LDATA16:
return "S_LDATA16 ";
case S_GDATA16:
return "S_GDATA16 ";
case S_PUB16:
return "S_PUB16 ";
case S_LPROC16:
return "S_LPROC16 ";
case S_GPROC16:
return "S_GPROC16 ";
case S_THUNK16:
return "S_THUNK16 ";
case S_BLOCK16:
return "S_BLOCK16 ";
case S_WITH16:
return "S_WITH16 ";
case S_LABEL16:
return "S_LABEL16 ";
case S_CEXMODEL16:
return "S_CEXMODEL16";
case S_VFTPATH16:
return "S_VFTPATH16 ";
case S_BPREL32:
return "S_BPREL32 ";
case S_LDATA32:
return "S_LDATA32 ";
case S_PUB32:
return "S_PUB32 ";
case S_LPROC32:
return "S_LPROC32 ";
case S_THUNK32:
return "S_THUNK32 ";
case S_BLOCK32:
return "S_BLOCK32 ";
case S_WITH32:
return "S_WITH32 ";
case S_LABEL32:
return "S_LABEL32 ";
case S_CEXMODEL32:
return "S_CEXMODEL32";
case S_VFTPATH32:
return "S_VFTPATH32 ";
case S_OPTVAR32:
return "S_OPTVAR32 ";
case S_PROCRET32:
return "S_PROCRET32 ";
case S_SAVEREGS32:
return "S_SAVEREGS32";
default:
return "UNKNOWN_TYPE";
}
}
LONG InitAddModuleSymbols(MODULE_HANDLE *module)
{
register LONG i, address, type, segment, nameIndex;
register SYMBOL_HEADER *symHeader;
register DEBUGREF *debugRef;
register ENTRY32 *entry;
register GDATA32 *gdata;
register GPROC32 *gproc;
register UDT *udt;
register BYTE *name;
register SYMBOL *symbol;
// NOTE: symbols that are imported are annotated with a segment
// index of '0xFFFF' rather than a valid segment number. If any
// symbol has an advertized segment greater than the number of module
// sections, then ignore the symbol and do not add it. It is assumed
// that the symbol is already exported somewhere else.
for (i=1; i < module->NumberOfSymbols + 1; i++)
{
symHeader = (SYMBOL_HEADER *) module->SymbolIndexTable[i];
type = symHeader->symbolType;
switch (type)
{
case S_GDATA32:
gdata = (GDATA32 *) symHeader;
segment = (gdata->Segment <= module->NumberOfSections)
? gdata->Segment
: 0;
nameIndex = (gdata->Name <= module->NumberOfNames)
? gdata->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + gdata->Offset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = InitCreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, gdata->Type,
SYMBOL_DATA);
if (!symbol)
return -1;
}
break;
case S_GPROC32:
gproc = (GPROC32 *) symHeader;
segment = (gproc->Segment <= module->NumberOfSections)
? gproc->Segment
: 0;
nameIndex = (gproc->Name <= module->NumberOfNames)
? gproc->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + gproc->Offset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = InitCreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, gproc->Type,
SYMBOL_PROCEDURE);
if (!symbol)
return -1;
}
break;
case S_GPROCREF:
debugRef = (DEBUGREF *) symHeader;
segment = (debugRef->symbolSegment <= module->NumberOfSections)
? debugRef->symbolSegment
: 0;
nameIndex = (debugRef->Name <= module->NumberOfNames)
? debugRef->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + debugRef->symbolOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = InitCreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, debugRef->Type,
SYMBOL_PROCEDURE);
if (!symbol)
return -1;
}
break;
case S_GDATAREF:
debugRef = (DEBUGREF *) symHeader;
segment = (debugRef->symbolSegment <= module->NumberOfSections)
? debugRef->symbolSegment
: 0;
nameIndex = (debugRef->Name <= module->NumberOfNames)
? debugRef->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + debugRef->symbolOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = InitCreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, debugRef->Type,
SYMBOL_DATA);
if (!symbol)
return -1;
}
break;
case S_UDT:
udt = (UDT *) symHeader;
nameIndex = (udt->Name <= module->NumberOfNames)
? udt->Name
: 0;
if (nameIndex)
{
address = udt->bOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = InitCreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, udt->Type,
SYMBOL_CONTROL);
if (!symbol)
return -1;
}
break;
case S_ENTRY32:
entry = (ENTRY32 *) symHeader;
segment = (entry->Segment <= module->NumberOfSections)
? entry->Segment
: 0;
if (segment)
{
address = module->SegmentIndexTable[segment] + entry->Offset;
symbol = InitCreatePublicSymbol(module, "ENTRY", address, type,
FORMAT_BORLAND, 0, 0,
SYMBOL_ENTRY);
if (!symbol)
return -1;
}
break;
case S_COMPILE:
case S_REGISTER:
case S_CONST:
case S_SSEARCH:
case S_END:
case S_SKIP:
case S_CVRESERVE:
case S_OBJNAME:
case S_EDATA:
case S_EPROC:
case S_BPREL16:
case S_LDATA16:
case S_GDATA16:
case S_PUB16:
case S_LPROC16:
case S_GPROC16:
case S_THUNK16:
case S_BLOCK16:
case S_WITH16:
case S_LABEL16:
case S_CEXMODEL16:
case S_VFTPATH16:
case S_BPREL32:
case S_LDATA32:
case S_PUB32:
case S_LPROC32:
case S_THUNK32:
case S_BLOCK32:
case S_WITH32:
case S_LABEL32:
case S_CEXMODEL32:
case S_VFTPATH32:
case S_OPTVAR32:
case S_PROCRET32:
case S_SAVEREGS32:
break;
default:
break;
}
}
return 0;
}
LONG AddModuleSymbols(MODULE_HANDLE *module)
{
register LONG i, address, type, segment, nameIndex;
register SYMBOL_HEADER *symHeader;
register DEBUGREF *debugRef;
register ENTRY32 *entry;
register GDATA32 *gdata;
register GPROC32 *gproc;
register UDT *udt;
register BYTE *name;
register SYMBOL *symbol;
// NOTE: symbols that are imported are annotated with a segment
// index of '0xFFFF' rather than a valid segment number. If any
// symbol has an advertized segment greater than the number of module
// sections, then ignore the symbol and do not add it. It is assumed
// that the symbol is already exported somewhere else.
for (i=1; i < module->NumberOfSymbols + 1; i++)
{
symHeader = (SYMBOL_HEADER *) module->SymbolIndexTable[i];
type = symHeader->symbolType;
switch (type)
{
case S_GDATA32:
gdata = (GDATA32 *) symHeader;
segment = (gdata->Segment <= module->NumberOfSections)
? gdata->Segment
: 0;
nameIndex = (gdata->Name <= module->NumberOfNames)
? gdata->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + gdata->Offset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = CreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, gdata->Type,
SYMBOL_DATA);
if (!symbol)
return -1;
}
break;
case S_GPROC32:
gproc = (GPROC32 *) symHeader;
segment = (gproc->Segment <= module->NumberOfSections)
? gproc->Segment
: 0;
nameIndex = (gproc->Name <= module->NumberOfNames)
? gproc->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + gproc->Offset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = CreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, gproc->Type,
SYMBOL_PROCEDURE);
if (!symbol)
return -1;
}
break;
case S_GPROCREF:
debugRef = (DEBUGREF *) symHeader;
segment = (debugRef->symbolSegment <= module->NumberOfSections)
? debugRef->symbolSegment
: 0;
nameIndex = (debugRef->Name <= module->NumberOfNames)
? debugRef->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + debugRef->symbolOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = CreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, debugRef->Type,
SYMBOL_PROCEDURE);
if (!symbol)
return -1;
}
break;
case S_GDATAREF:
debugRef = (DEBUGREF *) symHeader;
segment = (debugRef->symbolSegment <= module->NumberOfSections)
? debugRef->symbolSegment
: 0;
nameIndex = (debugRef->Name <= module->NumberOfNames)
? debugRef->Name
: 0;
if (segment && nameIndex)
{
address = module->SegmentIndexTable[segment] + debugRef->symbolOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = CreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, debugRef->Type,
SYMBOL_DATA);
if (!symbol)
return -1;
}
break;
case S_UDT:
udt = (UDT *) symHeader;
nameIndex = (udt->Name <= module->NumberOfNames)
? udt->Name
: 0;
if (nameIndex)
{
address = udt->bOffset;
name = (BYTE *) module->NameIndexTable[nameIndex];
symbol = CreatePublicSymbol(module, name, address, type,
FORMAT_BORLAND, 0, udt->Type,
SYMBOL_CONTROL);
if (!symbol)
return -1;
}
break;
case S_ENTRY32:
entry = (ENTRY32 *) symHeader;
segment = (entry->Segment <= module->NumberOfSections)
? entry->Segment
: 0;
if (segment)
{
address = module->SegmentIndexTable[segment] + entry->Offset;
symbol = CreatePublicSymbol(module, "ENTRY", address, type,
FORMAT_BORLAND, 0, 0,
SYMBOL_ENTRY);
if (!symbol)
return -1;
}
break;
case S_COMPILE:
case S_REGISTER:
case S_CONST:
case S_SSEARCH:
case S_END:
case S_SKIP:
case S_CVRESERVE:
case S_OBJNAME:
case S_EDATA:
case S_EPROC:
case S_BPREL16:
case S_LDATA16:
case S_GDATA16:
case S_PUB16:
case S_LPROC16:
case S_GPROC16:
case S_THUNK16:
case S_BLOCK16:
case S_WITH16:
case S_LABEL16:
case S_CEXMODEL16:
case S_VFTPATH16:
case S_BPREL32:
case S_LDATA32:
case S_PUB32:
case S_LPROC32:
case S_THUNK32:
case S_BLOCK32:
case S_WITH32:
case S_LABEL32:
case S_CEXMODEL32:
case S_VFTPATH32:
case S_OPTVAR32:
case S_PROCRET32:
case S_SAVEREGS32:
break;
default:
break;
}
}
return 0;
}
LONG GetValueFromLine(LONG ModuleIndex,
LONG FileIndex,
LONG SegmentIndex,
LONG LineNumber,
MODULE_HANDLE *module,
LONG *debugInfoPresent)
{
register LONG i, r, k, j, y, x, tmp, address;
register LONG Start, End, lastLine;
register SOURCE_HEADER *source;
register SOURCE_INDICE_TABLE *indice;
register START_END *lineStart;
register SOURCE_INDICE_TABLE *lineIndice;
register SOURCE_FILE_TABLE *fileTable;
register BASE_SOURCE_LINE *baseSourceLine;
register LINE_NUMBER_DATA *lineNumberData;
register LINE_OFFSET *lineOffset;
register LINE_NUMBER *lineNumber;
if (debugInfoPresent)
*debugInfoPresent = 0;
if (!module->SourceNumber)
{
if (debugInfoPresent)
*debugInfoPresent = 0;
return -1;
}
if (debugInfoPresent)
*debugInfoPresent = 1;
if (ModuleIndex > module->SourceNumber)
return -1;
i = ModuleIndex;
source = (SOURCE_HEADER *) module->SourceIndexTable[i];
tmp = (LONG) source + sizeof(SOURCE_HEADER);
indice = (SOURCE_INDICE_TABLE *) tmp;
if (FileIndex > source->NumberOfFiles)
return -1;
r = FileIndex;
tmp = (LONG) source + indice[r].Offset;
fileTable = (SOURCE_FILE_TABLE *) tmp;
tmp = (LONG) fileTable + sizeof(SOURCE_FILE_TABLE);
lineIndice = (SOURCE_INDICE_TABLE *) tmp;
if (SegmentIndex > fileTable->NumberOfSegments)
return -1;
k = SegmentIndex;
tmp = (LONG) source + lineIndice[k].Offset;
lineNumberData = (LINE_NUMBER_DATA *) tmp;
tmp = (LONG) lineNumberData + sizeof(LINE_NUMBER_DATA);
lineOffset = (LINE_OFFSET *) tmp;
tmp = (LONG) lineOffset + (lineNumberData->NumberOfLinePairs * 4);
lineNumber = (LINE_NUMBER *) tmp;
for (j = 0; j < lineNumberData->NumberOfLinePairs; j++)
{
address = lineOffset[j].Offset + module->SegmentIndexTable[k + 1];
if (LineNumber == lineNumber[j].LineNumber)
return address;
}
return -1;
}
LONG GetLineInfoFromValue(LONG address,
SOURCE_LINE_INFO *info,
MODULE_HANDLE **newModule,
LONG *totalLines,
LONG *debugInfoPresent,
LONG *exact)
{
register LONG i, r, k, j, y, tmp;
register LONG Start, End, lastLine;
register SOURCE_HEADER *source;
register SOURCE_INDICE_TABLE *indice;
register START_END *lineStart;
register SOURCE_INDICE_TABLE *lineIndice;
register SOURCE_FILE_TABLE *fileTable;
register BASE_SOURCE_LINE *baseSourceLine;
register LINE_NUMBER_DATA *lineNumberData;
register LINE_OFFSET *lineOffset;
register LINE_NUMBER *lineNumber;
register MODULE_HANDLE *module;
if (newModule)
*newModule = 0;
if (totalLines)
*totalLines = 0;
if (debugInfoPresent)
*debugInfoPresent = 0;
if (exact)
*exact = 0;
module = GetModuleHandleFromValue(address);
if (!module)
return 0;
if (!module->SourceNumber)
{
if (newModule)
*newModule = module;
if (debugInfoPresent)
*debugInfoPresent = 0;
return 0;
}
if (debugInfoPresent)
*debugInfoPresent = 1;
for (i=0; i < module->SourceNumber; i++)
{
source = (SOURCE_HEADER *) module->SourceIndexTable[i];
tmp = (LONG) source + sizeof(SOURCE_HEADER);
indice = (SOURCE_INDICE_TABLE *) tmp;
for (r=0; r < source->NumberOfFiles; r++)
{
tmp = (LONG) source + indice[r].Offset;
fileTable = (SOURCE_FILE_TABLE *) tmp;
tmp = (LONG) fileTable + sizeof(SOURCE_FILE_TABLE);
lineIndice = (SOURCE_INDICE_TABLE *) tmp;
tmp = (LONG) lineIndice + (fileTable->NumberOfSegments * 4);
lineStart = (START_END *) tmp;
for (k=0; k < fileTable->NumberOfSegments; k++)
{
Start = lineStart[k].Start + module->SegmentIndexTable[k + 1];
End = lineStart[k].End + module->SegmentIndexTable[k + 1];
if (address >= Start && address <= End)
{
tmp = (LONG) source + lineIndice[k].Offset;
lineNumberData = (LINE_NUMBER_DATA *) tmp;
tmp = (LONG) lineNumberData + sizeof(LINE_NUMBER_DATA);
lineOffset = (LINE_OFFSET *) tmp;
tmp = (LONG) lineOffset + (lineNumberData->NumberOfLinePairs * 4);
lineNumber = (LINE_NUMBER *) tmp;
for (lastLine = j = 0; j < lineNumberData->NumberOfLinePairs; j++)
{
register LONG lineAddress = lineOffset[j].Offset + module->SegmentIndexTable[k + 1];
if (address == lineAddress && lineNumber[j].LineNumber)
{
if (exact)
*exact = 1;
if (j < lineNumberData->NumberOfLinePairs)
{
info->ModuleName = (BYTE *) module->NameIndexTable[fileTable->Name];
info->Segment = k;
info->Offset = lineOffset[j].Offset + module->SegmentIndexTable[k + 1];
info->LineNumber = lineNumber[j].LineNumber;
info->LineAddress = lineOffset[j].Offset + module->SegmentIndexTable[k + 1];
info->FileIndex = r;
info->SourceIndex = i;
info->SourcePresent = 0;
info->ModuleIndex = 0;
info->LineTable = 0;
info->SourceLine = 0;
for (y = 1; y < (module->SourceNumber + 1); y++)
{
if (module->crossIndex[y].Name &&
!strcmp(info->ModuleName,
module->crossIndex[y].Name))
{
register LONG *ndx;
info->SourcePresent = 1;
info->ModuleIndex = y;
info->LineTable = ndx = (LONG *) module->SourceLineIndex[y];
if (totalLines)
*totalLines = module->SourceSizeIndex[y];
if (ndx)
info->SourceLine = (BYTE *) ndx[info->LineNumber];
}
}
j++;
}
else
{
info->ModuleName = 0;
info->Segment = 0;
info->Offset = 0;
info->LineNumber = 0;
info->LineAddress = 0;
info->SourcePresent = 0;
info->SourceIndex = 0;
info->FileIndex = 0;
info->ModuleIndex = 0;
info->LineTable = 0;
info->SourceLine = 0;
}
if (newModule)
*newModule = module;
return 1;
}
else
if (address < lineAddress && lineNumber[j].LineNumber)
{
if (j < lineNumberData->NumberOfLinePairs)
{
info->ModuleName = (BYTE *) module->NameIndexTable[fileTable->Name];
info->Segment = k;
info->Offset = lineOffset[lastLine].Offset + module->SegmentIndexTable[k + 1];
info->LineNumber = lineNumber[lastLine].LineNumber;
info->LineAddress = lineOffset[lastLine].Offset + module->SegmentIndexTable[k + 1];
info->FileIndex = r;
info->SourceIndex = i;
info->SourcePresent = 0;
info->ModuleIndex = 0;
info->LineTable = 0;
info->SourceLine = 0;
for (y = 1; y < (module->SourceNumber + 1); y++)
{
if (module->crossIndex[y].Name &&
!strcmp(info->ModuleName,
module->crossIndex[y].Name))
{
register LONG *ndx;
info->SourcePresent = 1;
info->ModuleIndex = y;
info->LineTable = ndx = (LONG *) module->SourceLineIndex[y];
if (totalLines)
*totalLines = module->SourceSizeIndex[y];
if (ndx)
info->SourceLine = (BYTE *) ndx[info->LineNumber];
}
}
j++;
}
else
{
info->ModuleName = 0;
info->Segment = 0;
info->Offset = 0;
info->LineNumber = 0;
info->LineAddress = 0;
info->SourcePresent = 0;
info->SourceIndex = 0;
info->FileIndex = 0;
info->ModuleIndex = 0;
info->LineTable = 0;
info->SourceLine = 0;
}
if (newModule)
*newModule = module;
return 1;
}
lastLine = j;
}
}
}
}
}
return 0;
}
void *InitMalloc(LONG size)
{
register LONG length;
void *p = 0;
// align on 16 byte boundries
length = (size + 0xF) & 0xFFFFFFF0;
if (length < HighMemoryLength)
{
p = (void *) StartOfHighMemory;
StartOfHighMemory += length;
HighMemoryLength -= length;
CVMemorySize += length;
}
return p;
}
// this call will return all memory allocated by the base OS for CodeView
void InitFree(MODULE_HANDLE *module)
{
SetData((LONG *)CVStartOfHighMemory, 0, CVMemorySize);
StartOfHighMemory = CVStartOfHighMemory;
HighMemoryLength = CVHighMemoryLength;
CVMemorySize = CVStartOfHighMemory = CVHighMemoryLength = 0;
module->sourceIndex = 0;
module->SourceNumber = 0;
module->ModuleNumber = 0;
module->SourceIndex = 0;
module->ModuleIndex = 0;
module->NameSection = 0;
module->NumberOfSymbols = 0;
module->NumberOfNames = 0;
module->NumberOfSections = 0;
module->DebugSymbolVersion = 0;
module->GlobalSymbolTable = 0;
module->GlobalTypeTable = 0;
module->DebugBaseAddress = 0;
module->ModuleIndexTable = 0;
module->SourceIndexTable = 0;
module->NameIndexTable = 0;
module->SymbolIndexTable = 0;
module->SourceCodeIndex = 0;
module->SourceLineIndex = 0;
module->SourceSizeIndex = 0;
module->crossIndex = 0;
module->defaultProcess = 0;
}
LONG ReadSourceFile(MODULE_HANDLE *module, BYTE *filename)
{
LONG fd;
register BYTE *buf;
register LONG size, bytesRead, total = 0, tmp, filesize;
fd = DOSOpen(strupr(filename), O_RDONLY | O_DENYNONE);
if (fd)
{
filesize = DOSLseek(fd, 0L, SEEK_END);
buf = InitMalloc(filesize);
if (buf)
{
module->SourceCodeIndex[module->sourceIndex] = (LONG) buf;
DOSLseek(fd, 0L, SEEK_SET);
module->crossIndex[module->sourceIndex].Name = filename;
module->crossIndex[module->sourceIndex].Index = module->sourceIndex;
bytesRead = 1;
while (bytesRead)
{
bytesRead = DOSRead(fd, buf, 4096);
if (bytesRead != 4096)
{
total += bytesRead;
break;
}
total += bytesRead;
tmp = (LONG) buf + bytesRead;
buf = (BYTE *) tmp;
}
DOSClose(fd);
return total;
}
module->SourceCodeIndex[module->sourceIndex] = 0;
}
return 0;
}
LONG GetSourceFiles(MODULE_HANDLE *module)
{
register LONG i, r, k, j, t, filesize, lines;
register LONG Start, End, *ndx;
register MODULE_INFO *moduleInfo;
register BYTE *buffer;
for (module->sourceIndex = 1, i = 1; i < (module->ModuleNumber + 1); i++, \
module->sourceIndex++)
{
moduleInfo = (MODULE_INFO *) module->ModuleIndexTable[i];
filesize = ReadSourceFile(module,
(BYTE *) module->NameIndexTable[moduleInfo->Name]);
if (filesize)
{
buffer = (BYTE *) module->SourceCodeIndex[module->sourceIndex];
lines = 1;
lines++;
for (k = 0; k < filesize; k++)
{
if (buffer[k] == '\n')
lines++;
}
module->SourceSizeIndex[module->sourceIndex] = lines;
module->SourceLineIndex[module->sourceIndex] = (LONG) InitMalloc(lines * sizeof(LONG));
if (!module->SourceLineIndex[module->sourceIndex])
return -1;
ndx = (LONG *) module->SourceLineIndex[module->sourceIndex];
buffer = (BYTE *) module->SourceCodeIndex[module->sourceIndex];
ndx[0] = 0;
lines = 1;
ndx[lines++] = (LONG) &buffer[0];
for (k = 0; k < filesize; k++)
{
if (buffer[k] == '\r')
buffer[k] = '\0';
if (buffer[k] == '\n')
{
buffer[k] = '\0';
ndx[lines++] = (LONG) &buffer[k+1];
}
}
buffer[k] = '\0';
}
else
{
module->SourceCodeIndex[module->sourceIndex] = 0;
module->crossIndex[module->sourceIndex].Name = (BYTE *) module->NameIndexTable[moduleInfo->Name];
module->crossIndex[module->sourceIndex].Index = module->sourceIndex;
module->SourceSizeIndex[module->sourceIndex] = 0;
module->SourceLineIndex[module->sourceIndex] = 0;
}
}
return 0;
}
LONG InitializeSymbolTable(MODULE_HANDLE *module)
{
register LONG i, val, mem;
register LONG *p, delta;
register DIRECTORY_HEADER *header;
register DEBUG_SIGNATURE *sig;
register GLOBAL_SYM_HEADER *symTable;
register SYMBOL_HEADER *symHeader;
register NAME_HEADER *nameHeader;
register GPROCREF *procRef;
register GDATAREF *dataRef;
register NAME_SECTION *NameTableHeader;
register SUBSECTION_HEADER *SubSectionHeader;
CVStartOfHighMemory = StartOfHighMemory;
CVHighMemoryLength = HighMemoryLength;
if (!module->DebugSegmentSize)
return -1;
// Borland _CV_ lfanew is at endOfDebugSection - 8 bytes
val = module->DebugSegmentPtr + module->DebugSegmentSize - 8;
sig = (DEBUG_SIGNATURE *) val;
// check for Borland debug signature at end of image
if (strncmp((BYTE *)sig, "FB", 2))
return -1;
module->DebugSymbolVersion = sig->Version;
module->DebugBaseAddress = module->DebugSegmentPtr + module->DebugSegmentSize - sig->Offset;
sig = (DEBUG_SIGNATURE *) module->DebugBaseAddress;
val = module->DebugBaseAddress + sig->Offset;
SubSectionHeader = (SUBSECTION_HEADER *) val;
val = (LONG) SubSectionHeader + SubSectionHeader->headerLength;
header = (DIRECTORY_HEADER *) val;
for (i=1, module->SourceNumber = 0, module->ModuleNumber = 0;
i < SubSectionHeader->numberOfEntries + 1; i++)
{
if (header->directoryType == SRC_MODULE)
module->SourceNumber++;
if (header->directoryType == MODULE)