You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
576 lines
17 KiB
576 lines
17 KiB
/****************************** Module Header ******************************\
|
|
* Module Name: dsocode.c
|
|
*
|
|
* Copyright (c) 1985-96, Microsoft Corporation
|
|
*
|
|
* This file contains the dump structure offset (dso) extension. It is
|
|
* included by $(ALT_PROJECT)\dsotable.c which is generated by structo.exe
|
|
*
|
|
* History:
|
|
* 06/17/96 GerardoB Created
|
|
* 10/06/98 Rajeshsu edited to use wdbgexts.h
|
|
\***************************************************************************/
|
|
|
|
#define DsoPrint(x) dprintf("%.*s", nIndent, " "); dprintf x
|
|
|
|
#define OFLAG(l) (1L << ((DWORD)#@l - (DWORD)'a'))
|
|
#define EvalExp GetExpression
|
|
|
|
#define EXACT_MATCH 0xFFFF
|
|
|
|
int gnIndent = 0; // caller should set and restore this appropriately.
|
|
|
|
VOID moveBlock(
|
|
PVOID pdst,
|
|
PVOID src,
|
|
DWORD size)
|
|
{
|
|
BOOL fSuccess = TRUE;
|
|
ULONG Result;
|
|
|
|
try {
|
|
if (!ReadMemory((DWORD_PTR)src, pdst, size, &Result)) {
|
|
fSuccess = FALSE;
|
|
}
|
|
} except (EXCEPTION_EXECUTE_HANDLER) {
|
|
//dprintf(pszMoveException, pszExtName);
|
|
fSuccess = FALSE;
|
|
}
|
|
|
|
if (!fSuccess) {
|
|
dprintf("moveBlock(%x, %x, %x) failed.\n", pdst, src, size);
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************\
|
|
* dsoTerminateString
|
|
*
|
|
* This is used to "parse" the command line. It null-terminates a space
|
|
* delimited string, returns its size and a pointer to the begining
|
|
* of next string
|
|
*
|
|
* 06/17/96 Created Gerardob
|
|
\***************************************************************************/
|
|
LPSTR dsoTerminateString(LPSTR psz, PDWORD pdwSize)
|
|
{
|
|
LPSTR pszWork = psz;
|
|
|
|
while (*pszWork != 0) {
|
|
if (*pszWork == ' ') {
|
|
*pszWork++ = 0;
|
|
break;
|
|
}
|
|
pszWork++;
|
|
}
|
|
|
|
*pdwSize = (DWORD)(pszWork - psz);
|
|
if (*pszWork != 0) {
|
|
(*pdwSize)--;
|
|
}
|
|
|
|
while ((*pszWork != 0) && (*pszWork == ' ')) {
|
|
pszWork++;
|
|
}
|
|
|
|
return pszWork;
|
|
}
|
|
/***************************************************************************\
|
|
* dsoGetOffset
|
|
*
|
|
* If the highest order bit of psot->dwOffset is set, then the value is a
|
|
* relative offset from the previous field; otherwise, it is the
|
|
* actual field offset from the beginnig of the structure
|
|
*
|
|
* 06/20/96 Created Gerardob
|
|
\***************************************************************************/
|
|
UINT dsoGetOffset (PSTRUCTUREOFFSETSTABLE psot)
|
|
{
|
|
if (!(psot->dwOffset & 0x80000000)) {
|
|
return psot->dwOffset;
|
|
} else {
|
|
return ((psot->dwOffset & ~0x80000000) + dsoGetOffset(psot - 1));
|
|
}
|
|
}
|
|
/***************************************************************************\
|
|
* dsoGetSize
|
|
*
|
|
* The field size is calculated by substracting its offset from the next
|
|
* field's offset. If the struct has unions, several "fields" might have
|
|
* the same offset, or a given table entry (i.e., a field) might have an
|
|
* offset value greater than the offset value for the next entry (a union
|
|
* of two structures).
|
|
*
|
|
* 06/26/96 Created Gerardob
|
|
\***************************************************************************/
|
|
UINT dsoGetSize (PSTRUCTUREOFFSETSTABLE psot, DWORD dwOffset)
|
|
{
|
|
DWORD dwNextFieldOffset;
|
|
|
|
do {
|
|
psot++;
|
|
dwNextFieldOffset = dsoGetOffset(psot);
|
|
} while (dwNextFieldOffset <= dwOffset);
|
|
|
|
return dwNextFieldOffset - dwOffset;
|
|
}
|
|
/***************************************************************************\
|
|
* dsoGetStruct
|
|
*
|
|
* 07/03/96 Created Gerardob
|
|
\***************************************************************************/
|
|
PSTRUCTURESTABLE dsoGetStruct (LPSTR pszStruct, DWORD dwSize)
|
|
{
|
|
PSTRUCTURESTABLE pst = gst;
|
|
|
|
/*
|
|
* If dwSize is EXACT_MATCH, we try an exact
|
|
* case sensitive match
|
|
*/
|
|
if (dwSize == EXACT_MATCH) {
|
|
while (pst->pszName != NULL) {
|
|
if (!strcmp(pszStruct, pst->pszName)) {
|
|
return pst;
|
|
}
|
|
pst++;
|
|
}
|
|
return NULL;
|
|
}
|
|
/*
|
|
* Try an exact case insensitive match
|
|
*/
|
|
while (pst->pszName != NULL) {
|
|
if (!_stricmp(pszStruct, pst->pszName)) {
|
|
return pst;
|
|
}
|
|
pst++;
|
|
}
|
|
|
|
/*
|
|
* Partial prefix match
|
|
*/
|
|
pst = gst;
|
|
while (pst->pszName != NULL) {
|
|
if (!_strnicmp(pszStruct, pst->pszName, dwSize)) {
|
|
return pst;
|
|
}
|
|
pst++;
|
|
}
|
|
|
|
return NULL;
|
|
|
|
}
|
|
/***************************************************************************\
|
|
* dsoGetField
|
|
*
|
|
* 07/03/96 Created Gerardob
|
|
\***************************************************************************/
|
|
PSTRUCTUREOFFSETSTABLE dosGetField (PSTRUCTUREOFFSETSTABLE psot, LPSTR pszField, DWORD dwSize)
|
|
{
|
|
PSTRUCTUREOFFSETSTABLE psotFirst = psot;
|
|
|
|
/*
|
|
* try an exact match
|
|
*/
|
|
while (psot->pszField != NULL) {
|
|
if (!_stricmp(pszField, psot->pszField)) {
|
|
return psot;
|
|
}
|
|
psot++;
|
|
}
|
|
|
|
/*
|
|
* Partial prefix match
|
|
*/
|
|
psot = psotFirst;
|
|
while (psot->pszField != NULL) {
|
|
if (!_strnicmp(pszField, psot->pszField, dwSize)) {
|
|
return psot;
|
|
}
|
|
psot++;
|
|
}
|
|
return NULL;
|
|
|
|
}
|
|
/***************************************************************************\
|
|
* Idso
|
|
*
|
|
* !dso StructName [FieldName] [Address]
|
|
*
|
|
* 06/17/96 Created Gerardob
|
|
* 05/12/97 MCostea Added bit field support
|
|
\***************************************************************************/
|
|
|
|
#define NFIELDS 2 // per row.
|
|
|
|
BOOL Idso(DWORD opts, LPSTR pszCmdLine)
|
|
{
|
|
BOOL fOneField = FALSE;
|
|
DWORD dwValue, dwSize, dwBytesRead, dwOffset, dwOffsetNext, dwFieldsPerRow, dwMoveSize;
|
|
DWORD dwBuffer [20]; /* Make sure it has an even number of elemnts and at least 4*/
|
|
const DWORD *pcdwLimit = dwBuffer + (sizeof(dwBuffer) / sizeof(*dwBuffer));
|
|
DWORD *pdwValue;
|
|
LPSTR pszField, pszAddress;
|
|
PBYTE pBufferOffset;
|
|
PSTRUCTURESTABLE pst, pstNested;
|
|
PSTRUCTUREOFFSETSTABLE psot;
|
|
PVOID pAddress = NULL;
|
|
|
|
int cBFStart, cBFLength; /* for printing bit field values: keeps count of field location */
|
|
char* pTmp;
|
|
DWORD dwMask;
|
|
BOOL fBF;
|
|
int cBF; /* no of dwords this set of bit-fields spread till now */
|
|
int cchName; /* length of field name */
|
|
int nIndent = gnIndent; /* amount to indent */
|
|
|
|
UNREFERENCED_PARAMETER(opts);
|
|
|
|
if (pszCmdLine == NULL) {
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Find the struct table
|
|
*/
|
|
pszField = dsoTerminateString(pszCmdLine, &dwSize);
|
|
pst = dsoGetStruct (pszCmdLine, dwSize);
|
|
if (pst == NULL) {
|
|
DsoPrint(("Structure not found: %s\n", pszCmdLine));
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Got a table
|
|
*/
|
|
psot = pst->psot;
|
|
|
|
/*
|
|
* If there is another argument, let's assume a field name follows
|
|
*/
|
|
if (*pszField != 0) {
|
|
/*
|
|
* Find the field
|
|
*/
|
|
pszAddress = dsoTerminateString(pszField, &dwSize);
|
|
psot = dosGetField (psot, pszField, dwSize);
|
|
|
|
/*
|
|
* If it didn't find the field and an address was provided, game over.
|
|
* Otherwise, the second parameter might be the address
|
|
*/
|
|
if (psot == NULL) {
|
|
if (*pszAddress != 0) {
|
|
DsoPrint(("Field not found: %s. Struct: %s\n", pszField, pst->pszName));
|
|
return TRUE;
|
|
} else {
|
|
pszAddress = pszField;
|
|
/*
|
|
* Reset psot since this argument was not a field
|
|
*/
|
|
psot = pst->psot;
|
|
}
|
|
} else {
|
|
fOneField = TRUE;
|
|
}
|
|
|
|
/*
|
|
* Get the pointer to the struct
|
|
*/
|
|
if (*pszAddress != 0) {
|
|
pAddress = (PVOID) EvalExp(pszAddress);
|
|
if (pAddress == NULL) {
|
|
/*
|
|
* EvalExp displayed the error message, so return silently
|
|
*/
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
} /* if (*pszField != 0) */
|
|
|
|
|
|
/*
|
|
* If a field name was specified, dump that field only
|
|
* Otherwise, dump the whole table.
|
|
*/
|
|
if (fOneField) {
|
|
/*
|
|
* If no address available, just display the field name and offset
|
|
*/
|
|
dwOffset = dsoGetOffset(psot);
|
|
|
|
DsoPrint(("Structure %s - Size: %#lx\n", pst->pszName, pst->dwSize));
|
|
|
|
/*
|
|
* Try to see if the fields are not nested structures
|
|
*/
|
|
if (*psot->pszField >= 'A' && *psot->pszField <= 'Z') {
|
|
/*
|
|
* Probably the field is a nested structure
|
|
*/
|
|
if (pstNested = dsoGetStruct (psot->pszField, EXACT_MATCH)) {
|
|
DWORD dwNestedOffset = dsoGetOffset(psot);
|
|
char cmdLine[80];
|
|
DsoPrint(("\nNested at offset %03lx: ", dwNestedOffset));
|
|
if (pAddress) {
|
|
sprintf(cmdLine, "%s %p", psot->pszField, (PBYTE)pAddress + dwNestedOffset);
|
|
pTmp = cmdLine;
|
|
}
|
|
else {
|
|
pTmp = psot->pszField;
|
|
}
|
|
return Idso(opts, pTmp);
|
|
}
|
|
}
|
|
|
|
DsoPrint(("Field: %s - Offset: %#lx\n", psot->pszField, dwOffset));
|
|
if (pAddress == NULL) {
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Printing field value
|
|
*/
|
|
|
|
/*123456789 1*/
|
|
DsoPrint(("Address Value\n"));
|
|
|
|
dwBytesRead = 0;
|
|
dwSize = dsoGetSize(psot, dwOffset);
|
|
/*
|
|
* Print 4 DWORDS per row; one row per loop
|
|
*/
|
|
|
|
do { /* while ((int)dwSize > 0) */
|
|
|
|
/*
|
|
* Read values for next row
|
|
*/
|
|
if (4 * sizeof(DWORD) >= dwSize) {
|
|
dwMoveSize = dwSize;
|
|
} else {
|
|
dwMoveSize = 4 * sizeof(DWORD);
|
|
}
|
|
moveBlock(dwBuffer, (PBYTE)pAddress + dwOffset + dwBytesRead, dwMoveSize);
|
|
pBufferOffset = (PBYTE)dwBuffer;
|
|
|
|
/*
|
|
* Print the address
|
|
*/
|
|
DsoPrint(("%p ", (DWORD_PTR)((PBYTE)pAddress + dwOffset + dwBytesRead)));
|
|
/*
|
|
* Keep track of bytes read (dwBytesRead) and bytes
|
|
* remaining to be read (dwSize)
|
|
*/
|
|
dwBytesRead += dwMoveSize;
|
|
dwSize -= dwMoveSize;
|
|
/*
|
|
* Print the values, one dword at the time
|
|
*/
|
|
while (dwMoveSize >= sizeof(DWORD)) {
|
|
DsoPrint(("%08lx ", *((DWORD *)pBufferOffset)));
|
|
pBufferOffset += sizeof(DWORD);
|
|
dwMoveSize -= sizeof(DWORD);
|
|
}
|
|
/*
|
|
* If less than a DWORD left, zero extend and print a DWORD
|
|
*/
|
|
if (dwMoveSize > 0) {
|
|
dwValue = 0;
|
|
memcpy(&dwValue, pBufferOffset, dwMoveSize);
|
|
DsoPrint(("%0*lx", dwMoveSize * 2, dwValue));
|
|
}
|
|
dprintf("\n");
|
|
|
|
} while ((int)dwSize > 0);
|
|
|
|
return TRUE;
|
|
|
|
} /* if (fOneField) */
|
|
|
|
|
|
/*
|
|
* Printing all the fields.
|
|
*/
|
|
if (pAddress != NULL) {
|
|
DsoPrint(("Structure %s %#lx - Size: %#lx", pst->pszName, pAddress, pst->dwSize));
|
|
} else {
|
|
DsoPrint(("Structure %s - Size: %#lx", pst->pszName, pst->dwSize));
|
|
}
|
|
|
|
dwOffset = 0;
|
|
pBufferOffset = NULL; /* Forces the local buffer to be loaded */
|
|
dwFieldsPerRow = NFIELDS;
|
|
cBFStart = 0;
|
|
cBF = 0;
|
|
|
|
/*
|
|
* Loop through all fields in the table. Print one field per loop
|
|
*/
|
|
|
|
while (psot->pszField != NULL) {
|
|
|
|
/*
|
|
* Print two fields per row
|
|
*/
|
|
if (dwFieldsPerRow == NFIELDS) {
|
|
dprintf("\n");
|
|
dwFieldsPerRow = 1;
|
|
cchName = 24 - gnIndent/NFIELDS;
|
|
nIndent = gnIndent;
|
|
// Print("cchName = %d\n", cchName);
|
|
} else {
|
|
dwFieldsPerRow++;
|
|
cchName = 24 - (gnIndent + 1)/NFIELDS;
|
|
nIndent = 0;
|
|
// Print("cchName = %d\n", cchName);
|
|
}
|
|
|
|
/*
|
|
* -v functionality
|
|
* Try to see if the fields are not nested structures
|
|
* The naming convention assigns Uppercase names for them
|
|
*/
|
|
if (opts & OFLAG(v)) {
|
|
if (*psot->pszField >= 'A' && *psot->pszField <= 'Z') {
|
|
/*
|
|
* Probably the field is a nested structure
|
|
*/
|
|
if (pstNested = dsoGetStruct (psot->pszField, EXACT_MATCH)) {
|
|
DWORD dwNestedOffset = dsoGetOffset(psot);
|
|
char cmdLine[80];
|
|
DsoPrint(("\nNested at offset %03lx: ", dwNestedOffset));
|
|
if (pAddress) {
|
|
sprintf(cmdLine, "%s %p", psot->pszField, (PBYTE)pAddress + dwNestedOffset);
|
|
pTmp = cmdLine;
|
|
}
|
|
else {
|
|
pTmp = psot->pszField;
|
|
}
|
|
Idso(opts, pTmp);
|
|
dwOffsetNext = dsoGetOffset(psot + 1);
|
|
dwFieldsPerRow = 0;
|
|
goto Continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If no address provided, Print field name(s) and offset(s) only
|
|
*/
|
|
if (pAddress == NULL) {
|
|
DsoPrint(("%03lx %-*.*s", dsoGetOffset(psot),
|
|
cchName, cchName, psot->pszField));
|
|
} else {
|
|
/*
|
|
* Printing offsets and values.
|
|
*
|
|
* Get the size of the value and max it to one DWORD
|
|
*/
|
|
dwOffsetNext = dsoGetOffset(psot + 1);
|
|
if (dwOffsetNext > dwOffset) {
|
|
dwSize = dwOffsetNext - dwOffset;
|
|
} else {
|
|
dwSize = dsoGetSize(psot, dwOffset);
|
|
}
|
|
if (dwSize > sizeof(DWORD)) {
|
|
dwSize = sizeof(DWORD);
|
|
}
|
|
|
|
/*
|
|
* Get a pointer to the value in the local buffer
|
|
* If the value is not in the buffer, load it
|
|
*/
|
|
pdwValue = (PDWORD)(pBufferOffset + dwOffset);
|
|
if ((pdwValue < dwBuffer) || (pdwValue + dwSize > pcdwLimit)) {
|
|
pBufferOffset = (PBYTE)dwBuffer - dwOffset;
|
|
pdwValue = dwBuffer;
|
|
|
|
if (sizeof(dwBuffer) >= pst->dwSize - dwOffset) {
|
|
dwMoveSize = pst->dwSize - dwOffset;
|
|
} else {
|
|
dwMoveSize = sizeof(dwBuffer);
|
|
}
|
|
moveBlock((PBYTE)dwBuffer, (PBYTE)pAddress + dwOffset, dwMoveSize);
|
|
|
|
}
|
|
|
|
/*
|
|
* Copy the value and print it
|
|
*/
|
|
dwValue = 0; /* in case size < sizeof(DWORD) */
|
|
memcpy(&dwValue, pdwValue, dwSize);
|
|
|
|
/*
|
|
* Deal with bit fields
|
|
*/
|
|
fBF = FALSE;
|
|
pTmp = psot->pszField;
|
|
while (*pTmp) {
|
|
if (*pTmp++ == ':') {
|
|
|
|
fBF = TRUE;
|
|
while ((*pTmp == ' ') || (*pTmp == '\t')) { /* skip white spaces */
|
|
++pTmp;
|
|
}
|
|
cBFLength = *(pTmp++) - '0'; /* now get the bit size, maybe 2 digits */
|
|
if ((*pTmp >= '0') && (*pTmp <= '9'))
|
|
cBFLength = cBFLength*10 + (*pTmp - '0');
|
|
|
|
if (cBFStart == 0) {
|
|
DsoPrint(("(%03lx) %08lx BIT FIELDS\n", dwOffset, dwValue));
|
|
dwFieldsPerRow = 1;
|
|
}
|
|
else if (cBFStart >= 8*sizeof(DWORD)) { /* check for multi-dword fields */
|
|
cBF ++;
|
|
cBFStart %= 8*sizeof(DWORD);
|
|
}
|
|
|
|
dwMask = (1L << cBFLength) - 1;
|
|
dwMask <<= cBFStart;
|
|
/* print byte offset and the bit offset inside it */
|
|
DsoPrint(("(%03lx) (%d) %-2x %-*.*s", dwOffset + cBF*sizeof(DWORD) + cBFStart/8, cBFStart & 7,
|
|
(dwMask & dwValue) >> cBFStart,
|
|
cchName, cchName, psot->pszField));
|
|
cBFStart += cBFLength;
|
|
cBFLength = 0;
|
|
break;
|
|
}
|
|
}
|
|
if (!fBF) {
|
|
int width = 8;
|
|
if (dwSize == sizeof(BYTE)) {
|
|
dwValue &= 0xff;
|
|
width = 2;
|
|
} else if (dwSize == sizeof(WORD)) {
|
|
dwValue &= 0xffff;
|
|
width = 4;
|
|
}
|
|
DsoPrint(("(%03lx) %*s%0*lx %-*.*s", dwOffset, 8 - width, "", width, dwValue,
|
|
cchName, cchName, psot->pszField));
|
|
cBFStart = 0;
|
|
cBF = 0;
|
|
}
|
|
|
|
} /* if (pAddress == NULL) */
|
|
|
|
Continue:
|
|
dwOffset = dwOffsetNext;
|
|
psot++;
|
|
|
|
} /* while (psot->pszField != NULL) */
|
|
|
|
dprintf("\n");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
DECLARE_API( gpcdso )
|
|
{
|
|
LPSTR pszCmdLine;
|
|
DWORD opts = 0;
|
|
|
|
pszCmdLine = (LPSTR) args;
|
|
Idso(opts, pszCmdLine);
|
|
}
|