Source code of Windows XP (NT5)
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.
 
 
 
 
 
 

2302 lines
49 KiB

//----------------------------------------------------------------------------
//
// Functions dealing with memory access, such as reading, writing,
// dumping and entering.
//
// Copyright (C) Microsoft Corporation, 1997-2001.
//
//----------------------------------------------------------------------------
#include "ntsdp.hpp"
ULONG64 EXPRLastDump = 0L;
ADDR g_DumpDefault; // default dump address
/*** GetProcessMemString - get memory string values
*
* Purpose:
* To read a string of a specified length with the memory
* values selected. Break reads across page boundaries -
* multiples of the page size.
*
* Input:
* Addr - offset of memory to start reading
* Value - pointer to byte string to set with memory values
*
* Output:
* bytes at Value set if read successful
*
* Returns:
* number of bytes actually read
*
*************************************************************************/
ULONG
GetProcessMemString (
PPROCESS_INFO Process,
PADDR Addr,
PVOID Value,
ULONG Length
)
{
ULONG cTotalBytesRead = 0;
if (fFlat(*Addr) || fInstrPtr(*Addr))
{
PPROCESS_INFO OldCur = g_CurrentProcess;
g_CurrentProcess = Process;
if (g_Target->ReadVirtual(Flat(*Addr), Value, Length,
&cTotalBytesRead) != S_OK)
{
cTotalBytesRead = 0;
}
g_CurrentProcess = OldCur;
}
return cTotalBytesRead;
}
/*** SetProcessMemString - set memory string values
*
* Purpose:
* To write a string of a specified length with the memory
* values selected.
*
* Input:
* Addr - offset of memory to start writing
* Value - pointer to byte string to set with memory values
*
* Output:
* bytes at Value set if write successful
*
* Returns:
* number of bytes actually write
*
*************************************************************************/
ULONG
SetProcessMemString (
PPROCESS_INFO Process,
PADDR Addr,
PVOID Value,
ULONG Length
)
{
ULONG cTotalBytesWritten = 0;
if (fFlat(*Addr) || fInstrPtr(*Addr))
{
PPROCESS_INFO OldCur = g_CurrentProcess;
g_CurrentProcess = Process;
if (g_Target->WriteVirtual(Flat(*Addr), Value, Length,
&cTotalBytesWritten) != S_OK)
{
cTotalBytesWritten = 0;
}
g_CurrentProcess = OldCur;
}
return cTotalBytesWritten;
}
BOOL
CALLBACK
LocalSymbolEnumerator(
PSYMBOL_INFO pSymInfo,
ULONG Size,
PVOID Context
)
{
ULONG64 Value = pSymInfo->Register, Address = pSymInfo->Address;
TranslateAddress(pSymInfo->Flags, pSymInfo->Register, &Address, &Value);
VerbOut("%s ", FormatAddr64(Address));
dprintf("%15s = ", pSymInfo->Name);
if (pSymInfo->Flags & SYMF_REGISTER)
{
dprintf( "%I64x\n",
Value
);
}
else
{
if (!DumpSingleValue(pSymInfo))
{
dprintf("??");
}
dprintf("\n");
}
if (CheckUserInterrupt())
{
return FALSE;
}
return TRUE;
}
//----------------------------------------------------------------------------
//
// parseDumpCommand
//
// Parses memory dump commands.
//
//----------------------------------------------------------------------------
void
parseDumpCommand(
void
)
{
CHAR ch;
ULONG64 count;
ULONG size;
ULONG offset;
BOOL DumpSymbols;
static CHAR s_DumpPrimary = 'b';
static CHAR s_DumpSecondary = ' ';
ch = (CHAR)tolower(*g_CurCmd);
if (ch == 'a' || ch == 'b' || ch == 'c' || ch == 'd' ||
ch == 'f' || ch == 'g' || ch == 'l' || ch == 'u' ||
ch == 'w' || ch == 's' || ch == 'q' || ch == 't' ||
ch == 'v' || ch == 'y' || ch == 'p')
{
if (ch == 'd' || ch == 's')
{
s_DumpPrimary = *g_CurCmd;
}
else if (ch == 'p')
{
// 'p' maps to the effective pointer size dump.
s_DumpPrimary = g_Machine->m_Ptr64 ? 'q' : 'd';
}
else
{
s_DumpPrimary = ch;
}
g_CurCmd++;
s_DumpSecondary = ' ';
if (s_DumpPrimary == 'd' || s_DumpPrimary == 'q')
{
if (*g_CurCmd == 's')
{
s_DumpSecondary = *g_CurCmd++;
}
}
else if (s_DumpPrimary == 'l')
{
if (*g_CurCmd == 'b')
{
s_DumpSecondary = *g_CurCmd++;
}
}
else if (s_DumpPrimary == 'y')
{
if (*g_CurCmd == 'b' || *g_CurCmd == 'd')
{
s_DumpSecondary = *g_CurCmd++;
}
}
}
switch (s_DumpPrimary)
{
case 'a':
count = 384;
GetRange(&g_DumpDefault, &count, 1, SEGREG_DATA);
fnDumpAsciiMemory(&g_DumpDefault, (ULONG)count);
break;
case 'b':
count = 128;
GetRange(&g_DumpDefault, &count, 1, SEGREG_DATA);
fnDumpByteMemory(&g_DumpDefault, (ULONG)count);
break;
case 'c':
count = 32;
GetRange(&g_DumpDefault, &count, 4, SEGREG_DATA);
fnDumpDwordAndCharMemory(&g_DumpDefault, (ULONG)count);
break;
case 'd':
count = 32;
DumpSymbols = s_DumpSecondary == 's';
GetRange(&g_DumpDefault, &count, 4, SEGREG_DATA);
fnDumpDwordMemory(&g_DumpDefault, (ULONG)count, DumpSymbols);
break;
case 'D':
count = 15;
GetRange(&g_DumpDefault, &count, 8, SEGREG_DATA);
fnDumpDoubleMemory(&g_DumpDefault, (ULONG)count);
break;
case 'f':
count = 16;
GetRange(&g_DumpDefault, &count, 4, SEGREG_DATA);
fnDumpFloatMemory(&g_DumpDefault, (ULONG)count);
break;
case 'g':
fnDumpSelector((ULONG)GetExpression());
break;
case 'l':
BOOL followBlink;
count = 32;
size = 4;
followBlink = s_DumpSecondary == 'b';
if ((ch = PeekChar()) != '\0' && ch != ';')
{
GetAddrExpression(SEGREG_DATA, &g_DumpDefault);
if ((ch = PeekChar()) != '\0' && ch != ';')
{
count = GetExpression();
if ((ch = PeekChar()) != '\0' && ch != ';')
{
size = (ULONG)GetExpression();
}
}
}
fnDumpListMemory(&g_DumpDefault, (ULONG)count, size, followBlink);
break;
case 'q':
count = 16;
DumpSymbols = s_DumpSecondary == 's';
GetRange(&g_DumpDefault, &count, 8, SEGREG_DATA);
fnDumpQuadMemory(&g_DumpDefault, (ULONG)count, DumpSymbols);
break;
case 's':
case 'S':
UNICODE_STRING64 UnicodeString;
ADDR BufferAddr;
count = 1;
GetRange(&g_DumpDefault, &count, 2, SEGREG_DATA);
while (count--)
{
if (g_Target->ReadUnicodeString(g_Machine, Flat(g_DumpDefault),
&UnicodeString) == S_OK)
{
ADDRFLAT(&BufferAddr, UnicodeString.Buffer);
if (s_DumpPrimary == 'S')
{
fnDumpUnicodeMemory( &BufferAddr,
UnicodeString.Length / sizeof(WCHAR));
}
else
{
fnDumpAsciiMemory( &BufferAddr, UnicodeString.Length );
}
}
}
break;
case 't':
case 'T':
SymbolTypeDumpEx(g_CurrentProcess->Handle,
g_CurrentProcess->ImageHead,
g_CurCmd);
break;
case 'u':
count = 384;
GetRange(&g_DumpDefault, &count, 2, SEGREG_DATA);
fnDumpUnicodeMemory(&g_DumpDefault, (ULONG)count);
break;
case 'v':
RequireCurrentScope();
EnumerateLocals(LocalSymbolEnumerator, NULL);
break;
case 'w':
count = 64;
GetRange(&g_DumpDefault, &count, 2, SEGREG_DATA);
fnDumpWordMemory(&g_DumpDefault, (ULONG)count);
break;
case 'y':
switch(s_DumpSecondary)
{
case 'b':
count = 32;
GetRange(&g_DumpDefault, &count, 1, SEGREG_DATA);
fnDumpByteBinaryMemory(&g_DumpDefault, (ULONG)count);
break;
case 'd':
count = 8;
GetRange(&g_DumpDefault, &count, 4, SEGREG_DATA);
fnDumpDwordBinaryMemory(&g_DumpDefault, (ULONG)count);
break;
default:
error(SYNTAX);
}
break;
default:
error(SYNTAX);
break;
}
}
//----------------------------------------------------------------------------
//
// DumpValues
//
// Generic columnar value dumper. Returns the number of values
// printed.
//
//----------------------------------------------------------------------------
class DumpValues
{
public:
DumpValues(ULONG Size, ULONG Columns);
ULONG Dump(PADDR Start, ULONG Count);
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void) = 0;
virtual BOOL PrintValue(void) = 0;
virtual void PrintUnknown(void) = 0;
// Optional worker methods. Base implementations do nothing.
virtual void EndRow(void);
// Fixed members controlling how this instance dumps values.
ULONG m_Size;
ULONG m_Columns;
// Work members during dumping.
UCHAR* m_Value;
ULONG m_Col;
PADDR m_Start;
// Optional per-row values. Out is automatically reset to
// Base at the beginning of every row.
UCHAR* m_Base;
UCHAR* m_Out;
};
DumpValues::DumpValues(ULONG Size, ULONG Columns)
{
m_Size = Size;
m_Columns = Columns;
}
ULONG
DumpValues::Dump(PADDR Start, ULONG Count)
{
ULONG Read;
UCHAR ReadBuffer[512];
ULONG Idx;
ULONG Block;
BOOL First = TRUE;
ULONG64 Offset;
ULONG Printed;
BOOL RowStarted;
ULONG PageVal;
ULONG64 NextOffs, NextPage;
Offset = Flat(*Start);
Printed = 0;
RowStarted = FALSE;
m_Start = Start;
m_Col = 0;
m_Out = m_Base;
while (Count > 0)
{
Block = sizeof(ReadBuffer) / m_Size;
Block = min(Count, Block);
g_Target->NearestDifferentlyValidOffsets(Offset, &NextOffs, &NextPage);
PageVal = (ULONG)(NextPage - Offset + m_Size - 1) / m_Size;
Block = min(Block, PageVal);
Read = GetMemString(Start, ReadBuffer, Block * m_Size) / m_Size;
if (Read < Block && NextOffs < NextPage)
{
// In dump files data validity can change from
// one byte to the next so we cannot assume that
// stepping by pages will always be correct. Instead,
// if we didn't have a successful read we step just
// past the end of the valid data or to the next
// valid offset, whichever is farther.
if (Offset + (Read + 1) * m_Size < NextOffs)
{
Block = (ULONG)(NextOffs - Offset + m_Size - 1) / m_Size;
}
else
{
Block = Read + 1;
}
}
m_Value = ReadBuffer;
Idx = 0;
if (First && Read >= 1)
{
First = FALSE;
EXPRLastDump = GetValue();
}
while (Idx < Block)
{
while (m_Col < m_Columns && Idx < Block)
{
if (m_Col == 0)
{
dprintAddr(Start);
RowStarted = TRUE;
}
if (Idx < Read)
{
if (!PrintValue())
{
// Increment address since this value was
// examined, but do not increment print count
// or column since no output was produced.
AddrAdd(Start, m_Size);
goto Exit;
}
m_Value += m_Size;
}
else
{
PrintUnknown();
}
Idx++;
Printed++;
m_Col++;
AddrAdd(Start, m_Size);
}
if (m_Col == m_Columns)
{
EndRow();
m_Out = m_Base;
dprintf("\n");
RowStarted = FALSE;
m_Col = 0;
}
if (CheckUserInterrupt())
{
return Printed;
}
}
Count -= Block;
Offset += Block * m_Size;
}
Exit:
if (RowStarted)
{
EndRow();
m_Out = m_Base;
dprintf("\n");
}
return Printed;
}
void
DumpValues::EndRow(void)
{
// Empty base implementation.
}
/*** fnDumpAsciiMemory - output ascii strings from memory
*
* Purpose:
* Function of "da<range>" command.
*
* Outputs the memory in the specified range as ascii
* strings up to 32 characters per line. The default
* display is 12 lines for 384 characters total.
*
* Input:
* Start - starting address to begin display
* Count - number of characters to display as ascii
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "?",
* but no errors are returned.
*
*************************************************************************/
class DumpAscii : public DumpValues
{
public:
DumpAscii(void)
: DumpValues(sizeof(UCHAR), (sizeof(m_Buf) / sizeof(m_Buf[0]) - 1))
{
m_Base = m_Buf;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
UCHAR m_Buf[33];
};
ULONG64
DumpAscii::GetValue(void)
{
return *m_Value;
}
BOOL
DumpAscii::PrintValue(void)
{
UCHAR ch;
ch = *m_Value;
if (ch == 0)
{
return FALSE;
}
if (ch < 0x20 || ch > 0x7e)
{
ch = '.';
}
*m_Out++ = ch;
return TRUE;
}
void
DumpAscii::PrintUnknown(void)
{
*m_Out++ = '?';
}
void
DumpAscii::EndRow(void)
{
*m_Out++ = 0;
dprintf(" \"%s\"", m_Base);
}
ULONG
fnDumpAsciiMemory(
PADDR Start,
ULONG Count
)
{
DumpAscii Dumper;
return Count - Dumper.Dump(Start, Count);
}
/*** fnDumpUnicodeMemory - output unicode strings from memory
*
* Purpose:
* Function of "du<range>" command.
*
* Outputs the memory in the specified range as unicode
* strings up to 32 characters per line. The default
* display is 12 lines for 384 characters total (768 bytes)
*
* Input:
* Start - starting address to begin display
* Count - number of characters to display as ascii
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "?",
* but no errors are returned.
*
*************************************************************************/
class DumpUnicode : public DumpValues
{
public:
DumpUnicode(void)
: DumpValues(sizeof(WCHAR), (sizeof(m_Buf) / sizeof(m_Buf[0]) - 1))
{
m_Base = (PUCHAR)m_Buf;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
WCHAR m_Buf[33];
};
ULONG64
DumpUnicode::GetValue(void)
{
return *(WCHAR *)m_Value;
}
BOOL
DumpUnicode::PrintValue(void)
{
WCHAR ch;
ch = *(WCHAR *)m_Value;
if (ch == UNICODE_NULL)
{
return FALSE;
}
if (ch < 0x20 || ch > 0x7e)
{
ch = L'.';
}
*(WCHAR *)m_Out = ch;
m_Out += sizeof(WCHAR);
return TRUE;
}
void
DumpUnicode::PrintUnknown(void)
{
*(WCHAR *)m_Out = L'?';
m_Out += sizeof(WCHAR);
}
void
DumpUnicode::EndRow(void)
{
*(WCHAR *)m_Out = UNICODE_NULL;
m_Out += sizeof(WCHAR);
dprintf(" \"%ws\"", m_Base);
}
ULONG
fnDumpUnicodeMemory(
PADDR Start,
ULONG Count
)
{
DumpUnicode Dumper;
return Count - Dumper.Dump(Start, Count);
}
/*** fnDumpByteMemory - output byte values from memory
*
* Purpose:
* Function of "db<range>" command.
*
* Output the memory in the specified range as hex
* byte values and ascii characters up to 16 bytes
* per line. The default display is 16 lines for
* 256 byte total.
*
* Input:
* Start - starting address to begin display
* Count - number of bytes to display as hex and characters
*
* Output:
* None.
*
* Notes:
* memory location not accessible are output as "??" for
* byte values and "?" as characters, but no errors are returned.
*
*************************************************************************/
class DumpByte : public DumpValues
{
public:
DumpByte(void)
: DumpValues(sizeof(UCHAR), (sizeof(m_Buf) / sizeof(m_Buf[0]) - 1))
{
m_Base = m_Buf;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
UCHAR m_Buf[17];
};
ULONG64
DumpByte::GetValue(void)
{
return *m_Value;
}
BOOL
DumpByte::PrintValue(void)
{
UCHAR ch;
ch = *m_Value;
if (m_Col == 8)
{
dprintf("-");
}
else
{
dprintf(" ");
}
dprintf("%02x", ch);
if (ch < 0x20 || ch > 0x7e)
{
ch = '.';
}
*m_Out++ = ch;
return TRUE;
}
void
DumpByte::PrintUnknown(void)
{
if (m_Col == 8)
{
dprintf("-??");
}
else
{
dprintf(" ??");
}
*m_Out++ = '?';
}
void
DumpByte::EndRow(void)
{
*m_Out++ = 0;
while (m_Col < m_Columns)
{
dprintf(" ");
m_Col++;
}
if ((m_Start->type & ADDR_1632) == ADDR_1632)
{
dprintf(" %s", m_Base);
}
else
{
dprintf(" %s", m_Base);
}
}
void
fnDumpByteMemory(
PADDR Start,
ULONG Count
)
{
DumpByte Dumper;
Dumper.Dump(Start, Count);
}
/*** fnDumpWordMemory - output word values from memory
*
* Purpose:
* Function of "dw<range>" command.
*
* Output the memory in the specified range as word
* values up to 8 words per line. The default display
* is 16 lines for 128 words total.
*
* Input:
* Start - starting address to begin display
* Count - number of words to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????",
* but no errors are returned.
*
*************************************************************************/
class DumpWord : public DumpValues
{
public:
DumpWord(void)
: DumpValues(sizeof(WORD), 8) {}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
};
ULONG64
DumpWord::GetValue(void)
{
return *(WORD *)m_Value;
}
BOOL
DumpWord::PrintValue(void)
{
dprintf(" %04x", *(WORD *)m_Value);
return TRUE;
}
void
DumpWord::PrintUnknown(void)
{
dprintf(" ????");
}
void
fnDumpWordMemory(
PADDR Start,
ULONG Count
)
{
DumpWord Dumper;
Dumper.Dump(Start, Count);
}
/*** fnDumpDwordMemory - output dword value from memory
*
* Purpose:
* Function of "dd<range>" command.
*
* Output the memory in the specified range as double
* word values up to 4 double words per line. The default
* display is 16 lines for 64 double words total.
*
* Input:
* Start - starting address to begin display
* Count - number of double words to be displayed
* fDumpSymbols - Dump symbol for DWORD.
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
class DumpDword : public DumpValues
{
public:
DumpDword(BOOL DumpSymbols)
: DumpValues(sizeof(DWORD), DumpSymbols ? 1 : 4)
{
m_DumpSymbols = DumpSymbols;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
BOOL m_DumpSymbols;
};
ULONG64
DumpDword::GetValue(void)
{
return *(DWORD *)m_Value;
}
BOOL
DumpDword::PrintValue(void)
{
CHAR SymBuf[MAX_SYMBOL_LEN];
USHORT StdCallArgs;
ULONG64 Displacement;
dprintf(" %08lx", *(DWORD *)m_Value);
if (m_DumpSymbols)
{
GetSymbolStdCall(EXTEND64(*(LONG *)m_Value),
SymBuf,
sizeof(SymBuf),
&Displacement,
&StdCallArgs);
if (*SymBuf)
{
dprintf(" %s", SymBuf);
if (Displacement)
{
dprintf("+0x%s", FormatDisp64(Displacement));
}
if (g_SymOptions & SYMOPT_LOAD_LINES)
{
OutputLineAddr(EXTEND64(*(LONG*)m_Value), " [%s @ %d]");
}
}
}
return TRUE;
}
void
DumpDword::PrintUnknown(void)
{
dprintf(" ????????");
}
void
fnDumpDwordMemory(
PADDR Start,
ULONG Count,
BOOL fDumpSymbols
)
{
DumpDword Dumper(fDumpSymbols);
Dumper.Dump(Start, Count);
}
/*** fnDumpDwordAndCharMemory - output dword value from memory
*
* Purpose:
* Function of "dc<range>" command.
*
* Output the memory in the specified range as double
* word values up to 4 double words per line, followed by
* an ASCII character representation of the bytes.
* The default display is 16 lines for 64 double words total.
*
* Input:
* Start - starting address to begin display
* Count - number of double words to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
class DumpDwordAndChar : public DumpValues
{
public:
DumpDwordAndChar(void)
: DumpValues(sizeof(DWORD), (sizeof(m_Buf) - 1) / sizeof(DWORD))
{
m_Base = m_Buf;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
UCHAR m_Buf[17];
};
ULONG64
DumpDwordAndChar::GetValue(void)
{
return *(DWORD *)m_Value;
}
BOOL
DumpDwordAndChar::PrintValue(void)
{
UCHAR ch;
ULONG byte;
dprintf(" %08x", *(DWORD *)m_Value);
for (byte = 0; byte < sizeof(DWORD); byte++)
{
ch = *(m_Value + byte);
if (ch < 0x20 || ch > 0x7e)
{
ch = '.';
}
*m_Out++ = ch;
}
return TRUE;
}
void
DumpDwordAndChar::PrintUnknown(void)
{
dprintf(" ????????");
*m_Out++ = '?';
*m_Out++ = '?';
*m_Out++ = '?';
*m_Out++ = '?';
}
void
DumpDwordAndChar::EndRow(void)
{
*m_Out++ = 0;
while (m_Col < m_Columns)
{
dprintf(" ");
m_Col++;
}
dprintf(" %s", m_Base);
}
void
fnDumpDwordAndCharMemory(PADDR Start, ULONG Count)
{
DumpDwordAndChar Dumper;
Dumper.Dump(Start, Count);
}
/*** fnDumpListMemory - output linked list from memory
*
* Purpose:
* Function of "dl addr length size" command.
*
* Output the memory in the specified range as a linked list
*
* Input:
* Start - starting address to begin display
* Count - number of list elements to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
void
fnDumpListMemory(
PADDR Start,
ULONG elemcount,
ULONG size,
BOOL followBlink
)
{
ULONG64 firstaddr;
ULONG64 link;
LIST_ENTRY64 list;
ADDR curaddr;
ULONG linkSize;
PULONG plink;
if (Type(*Start) & (ADDR_UNKNOWN | ADDR_V86 | ADDR_16 | ADDR_1632))
{
dprintf("[%u,%x:%x`%08x,%08x`%08x] - bogus address type.\n",
Type(*Start),
Start->seg,
(ULONG)(Off(*Start)>>32),
(ULONG)Off(*Start),
(ULONG)(Flat(*Start)>>32),
(ULONG)Flat(*Start)
);
return;
}
//
// Setup to follow forward or backward links. Avoid reading more
// than the forward link here if going forwards. (in case the link
// is at the end of a page).
//
firstaddr = Flat(*Start);
while (elemcount-- != 0 && Flat(*Start) != 0)
{
if (followBlink)
{
if (g_Target->ReadListEntry(g_Machine,
Flat(*Start), &list) != S_OK)
{
break;
}
link = list.Blink;
}
else
{
if (g_Target->ReadPointer(g_Machine,
Flat(*Start), &link) != S_OK)
{
break;
}
}
curaddr = *Start;
if (g_Machine->m_Ptr64)
{
fnDumpQuadMemory(&curaddr, size, FALSE);
}
else
{
fnDumpDwordMemory(&curaddr, size, FALSE);
}
//
// If we get back to the first entry, we're done.
//
if (link == firstaddr)
{
break;
}
//
// Bail if the link is immediately circular.
//
if (Flat(*Start) == link)
{
break;
}
Flat(*Start) = Start->off = link;
if (CheckUserInterrupt())
{
WarnOut("-- User interrupt\n");
return;
}
}
}
//----------------------------------------------------------------------------
//
// fnDumpFloatMemory
//
// Dumps float values.
//
//----------------------------------------------------------------------------
class DumpFloat : public DumpValues
{
public:
DumpFloat(void)
: DumpValues(sizeof(float), 4) {}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
};
ULONG64
DumpFloat::GetValue(void)
{
// NTRAID#72849-2000/02/09-drewb.
// Expression results are always integers right now
// so just return the raw bits for the float.
return *(ULONG *)m_Value;
}
BOOL
DumpFloat::PrintValue(void)
{
dprintf(" %16.8g", *(float *)m_Value);
return TRUE;
}
void
DumpFloat::PrintUnknown(void)
{
dprintf(" ????????????????");
}
void
fnDumpFloatMemory(PADDR Start, ULONG Count)
{
DumpFloat Dumper;
Dumper.Dump(Start, Count);
}
//----------------------------------------------------------------------------
//
// fnDumpDoubleMemory
//
// Dumps double values.
//
//----------------------------------------------------------------------------
class DumpDouble : public DumpValues
{
public:
DumpDouble(void)
: DumpValues(sizeof(double), 3) {}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
};
ULONG64
DumpDouble::GetValue(void)
{
// NTRAID#72849-2000/02/09-drewb.
// Expression results are always integers right now
// so just return the raw bits for the float.
return *(ULONG64 *)m_Value;
}
BOOL
DumpDouble::PrintValue(void)
{
dprintf(" %22.12lg", *(double *)m_Value);
return TRUE;
}
void
DumpDouble::PrintUnknown(void)
{
dprintf(" ????????????????????????");
}
void
fnDumpDoubleMemory(PADDR Start, ULONG Count)
{
DumpDouble Dumper;
Dumper.Dump(Start, Count);
}
/*** fnDumpQuadMemory - output quad value from memory
*
* Purpose:
* Function of "dq<range>" command.
*
* Output the memory in the specified range as quad
* word values up to 2 quad words per line. The default
* display is 16 lines for 32 quad words total.
*
* Input:
* Start - starting address to begin display
* Count - number of double words to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
class DumpQuad : public DumpValues
{
public:
DumpQuad(BOOL DumpSymbols)
: DumpValues(sizeof(ULONGLONG), DumpSymbols ? 1 : 2)
{
m_DumpSymbols = DumpSymbols;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
BOOL m_DumpSymbols;
};
ULONG64
DumpQuad::GetValue(void)
{
return *(ULONG64 *)m_Value;
}
BOOL
DumpQuad::PrintValue(void)
{
CHAR SymBuf[MAX_SYMBOL_LEN];
USHORT StdCallArgs;
ULONG64 Displacement;
ULONG64 Val = *(ULONG64*)m_Value;
dprintf(" %08lx`%08lx", (ULONG)(Val >> 32), (ULONG)Val);
if (m_DumpSymbols)
{
GetSymbolStdCall(Val,
SymBuf,
sizeof(SymBuf),
&Displacement,
&StdCallArgs);
if (*SymBuf)
{
dprintf(" %s", SymBuf);
if (Displacement)
{
dprintf("+0x%s", FormatDisp64(Displacement));
}
if (g_SymOptions & SYMOPT_LOAD_LINES)
{
OutputLineAddr(Val, " [%s @ %d]");
}
}
}
return TRUE;
}
void
DumpQuad::PrintUnknown(void)
{
dprintf(" ????????`????????");
}
void
fnDumpQuadMemory(
PADDR Start,
ULONG Count,
BOOL fDumpSymbols
)
{
DumpQuad Dumper(fDumpSymbols);
Dumper.Dump(Start, Count);
}
/*** fnDumpByteBinaryMemory - output binary value from memory
*
* Purpose:
* Function of "dyb<range>" command.
*
* Output the memory in the specified range as binary
* values up to 32 bits per line. The default
* display is 8 lines for 32 bytes total.
*
* Input:
* Start - starting address to begin display
* Count - number of double words to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
class DumpByteBinary : public DumpValues
{
public:
DumpByteBinary(void)
: DumpValues(sizeof(UCHAR), (DIMA(m_HexValue) - 1) / 3)
{
m_Base = m_HexValue;
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
UCHAR m_HexValue[13];
};
ULONG64
DumpByteBinary::GetValue(void)
{
return *m_Value;
}
BOOL
DumpByteBinary::PrintValue(void)
{
ULONG i;
UCHAR RawVal;
RawVal = *m_Value;
sprintf((PSTR)m_Out, " %02x", RawVal);
m_Out += 3;
dprintf(" ");
for (i = 0; i < 8; i++)
{
dprintf("%c", (RawVal & 0x80) ? '1' : '0');
RawVal <<= 1;
}
return TRUE;
}
void
DumpByteBinary::PrintUnknown(void)
{
dprintf(" ????????");
strcpy((PSTR)m_Out, " ??");
m_Out += 3;
}
void
DumpByteBinary::EndRow(void)
{
while (m_Col < m_Columns)
{
dprintf(" ");
m_Col++;
}
dprintf(" %s", m_HexValue);
}
void
fnDumpByteBinaryMemory(
PADDR Start,
ULONG Count
)
{
DumpByteBinary Dumper;
PSTR Blanks = g_Machine->m_Ptr64 ? " " : " ";
dprintf("%s 76543210 76543210 76543210 76543210\n", Blanks);
dprintf("%s -------- -------- -------- --------\n", Blanks);
Dumper.Dump(Start, Count);
}
/*** fnDumpDwordBinaryMemory - output binary value from memory
*
* Purpose:
* Function of "dyd<range>" command.
*
* Output the memory in the specified range as binary
* values of 32 bits per line. The default
* display is 8 lines for 8 dwords total.
*
* Input:
* Start - starting address to begin display
* Count - number of double words to be displayed
*
* Output:
* None.
*
* Notes:
* memory locations not accessible are output as "????????",
* but no errors are returned.
*
*************************************************************************/
class DumpDwordBinary : public DumpValues
{
public:
DumpDwordBinary(void)
: DumpValues(sizeof(ULONG), 1)
{
}
protected:
// Worker methods that derived classes must define.
virtual ULONG64 GetValue(void);
virtual BOOL PrintValue(void);
virtual void PrintUnknown(void);
virtual void EndRow(void);
UCHAR m_HexValue[9];
};
ULONG64
DumpDwordBinary::GetValue(void)
{
return *(PULONG)m_Value;
}
BOOL
DumpDwordBinary::PrintValue(void)
{
ULONG i;
ULONG RawVal;
RawVal = *(PULONG)m_Value;
sprintf((PSTR)m_HexValue, "%08lx", RawVal);
for (i = 0; i < sizeof(ULONG) * 8; i++)
{
if ((i & 7) == 0)
{
dprintf(" ");
}
dprintf("%c", (RawVal & 0x80000000) ? '1' : '0');
RawVal <<= 1;
}
return TRUE;
}
void
DumpDwordBinary::PrintUnknown(void)
{
dprintf(" ???????? ???????? ???????? ????????");
strcpy((PSTR)m_HexValue, "????????");
}
void
DumpDwordBinary::EndRow(void)
{
dprintf(" %s", m_HexValue);
}
void
fnDumpDwordBinaryMemory(
PADDR Start,
ULONG Count
)
{
DumpDwordBinary Dumper;
PSTR Blanks = g_Machine->m_Ptr64 ? " " : " ";
dprintf("%s 3 2 1 0\n", Blanks);
dprintf("%s 10987654 32109876 54321098 76543210\n", Blanks);
dprintf("%s -------- -------- -------- --------\n", Blanks);
Dumper.Dump(Start, Count);
}
//----------------------------------------------------------------------------
//
// fnDumpSelector
//
// Dumps an x86 selector.
//
//----------------------------------------------------------------------------
void
fnDumpSelector(
ULONG Selector
)
{
DESCRIPTOR64 Desc;
ULONG Type;
LPSTR TypeName;
PSTR PreFill, PostFill, Dash;
if (g_Target->GetSelDescriptor(g_Machine,
g_CurrentProcess->CurrentThread->Handle,
Selector, &Desc) != S_OK)
{
ErrOut("Unable to get selector %X description\n", Selector);
return;
}
if (g_Machine->m_Ptr64)
{
PreFill = " ";
PostFill = " ";
Dash = "---------";
}
else
{
PreFill = "";
PostFill = "";
Dash = "";
}
dprintf("Selector %sBase%s %sLimit%s Type DPL Size Gran\n",
PreFill, PostFill, PreFill, PostFill);
dprintf("-------- --------%s --------%s ------ --- ------- ----\n",
Dash, Dash);
Type = X86_DESC_TYPE(Desc.Flags);
if ( Type & 0x10 )
{
if ( Type & 0x8 )
{
// Code Descriptor
TypeName = " Code ";
}
else
{
// Data Descriptor
TypeName = " Data ";
}
}
else
{
TypeName = " Sys. ";
}
// 1234 12345678 12345678 ?Type? 1 ....... ....
dprintf(" %04X %s %s %s %d %s %s\n",
Selector,
FormatAddr64(Desc.Base),
FormatAddr64(Desc.Limit),
TypeName,
X86_DESC_PRIVILEGE(Desc.Flags),
(Desc.Flags & X86_DESC_DEFAULT_BIG) ? " Big " : "Not Big",
(Desc.Flags & X86_DESC_GRANULARITY) ? "Page" : "Byte"
);
}
//----------------------------------------------------------------------------
//
// parseEnterCommand
//
// Parses memory entry commands.
//
//----------------------------------------------------------------------------
void
parseEnterCommand(
void
)
{
CHAR ch;
static CHAR s_EnterType = 'b';
ADDR addr1;
UCHAR list[STRLISTSIZE * 2];
PUCHAR plist = &list[0];
ULONG count;
ULONG size;
ch = (CHAR)tolower(*g_CurCmd);
if (ch == 'a' || ch == 'b' || ch == 'w' || ch == 'd' || ch == 'q' ||
ch == 'u')
{
g_CurCmd++;
s_EnterType = ch;
}
GetAddrExpression(SEGREG_DATA, &addr1);
if (s_EnterType == 'a' || s_EnterType == 'u')
{
AsciiList((PSTR)list, &count);
if (count == 0)
{
error(UNIMPLEMENT); //TEMP
}
if (s_EnterType == 'u')
{
ULONG Ansi;
// Expand ANSI to Unicode.
Ansi = count;
count *= 2;
while (Ansi-- > 0)
{
list[Ansi * 2] = list[Ansi];
list[Ansi * 2 + 1] = 0;
}
}
}
else
{
size = 1;
if (s_EnterType == 'w')
{
size = 2;
}
else if (s_EnterType == 'd')
{
size = 4;
}
else if (s_EnterType == 'q')
{
size = 8;
}
HexList(list, &count, size);
if (count == 0)
{
fnInteractiveEnterMemory(&addr1, size);
return;
}
}
//
// memory was entered at the command line.
// just write it in, one byte at a time
//
while (count--)
{
if (SetMemString(&addr1, plist++, 1) != 1)
{
error(MEMORY);
}
AddrAdd(&addr1, 1);
if (CheckUserInterrupt())
{
WarnOut("-- User interrupt\n");
return;
}
}
}
//----------------------------------------------------------------------------
//
// fnInteractiveEnterMemory
//
// Interactively walks through memory, displaying current contents
// and prompting for new contents.
//
//----------------------------------------------------------------------------
void
fnInteractiveEnterMemory(
PADDR Address,
ULONG Size
)
{
CHAR EnterBuf[1024];
PSTR Enter;
ULONG64 Content;
PSTR CmdSaved = g_CurCmd;
PSTR StartSaved = g_CommandStart;
ULONG64 EnteredValue;
CHAR ch;
g_PromptLength = 9 + 2 * Size;
while (TRUE)
{
if (GetMemString(Address, (PUCHAR)&Content, Size) != Size)
{
error(MEMORY);
}
dprintAddr(Address);
switch (Size)
{
case 1:
dprintf("%02x", (UCHAR)Content);
break;
case 2:
dprintf("%04x", (USHORT)Content);
break;
case 4:
dprintf("%08lx", (ULONG)Content);
break;
case 8:
dprintf("%08lx`%08lx", (ULONG)(Content>>32), (ULONG)Content);
break;
}
GetInput(" ", EnterBuf, 1024);
RemoveDelChar(EnterBuf);
Enter = EnterBuf;
if (*Enter == '\0')
{
g_CurCmd = CmdSaved;
g_CommandStart = StartSaved;
return;
}
ch = *Enter;
while (ch == ' ' || ch == '\t' || ch == ';')
{
ch = *++Enter;
}
if (*Enter == '\0')
{
AddrAdd(Address, Size);
continue;
}
g_CurCmd = Enter;
g_CommandStart = Enter;
EnteredValue = HexValue(Size);
if (SetMemString(Address, (PUCHAR)&EnteredValue, Size) != Size)
{
error(MEMORY);
}
AddrAdd(Address, Size);
}
}
/*** fnCompareMemory - compare two ranges of memory
*
* Purpose:
* Function of "c<range><addr>" command.
*
* To compare two ranges of memory, starting at offsets
* src1addr and src2addr, respectively, for length bytes.
* Bytes that mismatch are displayed with their offsets
* and contents.
*
* Input:
* src1addr - start of first memory region
* length - count of bytes to compare
* src2addr - start of second memory region
*
* Output:
* None.
*
* Exceptions:
* error exit: MEMORY - memory read access failure
*
*************************************************************************/
void
fnCompareMemory(
PADDR src1addr,
ULONG length,
PADDR src2addr
)
{
ULONG compindex;
UCHAR src1ch;
UCHAR src2ch;
for (compindex = 0; compindex < length; compindex++)
{
if (!GetMemByte(src1addr, &src1ch))
{
error(MEMORY);
}
if (!GetMemByte(src2addr, &src2ch))
{
error(MEMORY);
}
if (src1ch != src2ch)
{
dprintAddr(src1addr); dprintf(" %02x - ", src1ch);
dprintAddr(src2addr); dprintf(" %02x\n", src2ch);
}
AddrAdd(src1addr,1);
AddrAdd(src2addr,1);
if (CheckUserInterrupt())
{
WarnOut("-- User interrupt\n");
return;
}
}
}
/*** fnMoveMemory - move a range of memory to another
*
* Purpose:
* Function of "m<range><addr>" command.
*
* To move a range of memory starting at srcaddr to memory
* starting at destaddr for length bytes.
*
* Input:
* srcaddr - start of source memory region
* length - count of bytes to move
* destaddr - start of destination memory region
*
* Output:
* memory at destaddr has moved values
*
* Exceptions:
* error exit: MEMORY - memory reading or writing access failure
*
*************************************************************************/
void
fnMoveMemory(
PADDR srcaddr,
ULONG length,
PADDR destaddr
)
{
UCHAR ch;
ULONG64 incr = 1;
if (AddrLt(*srcaddr, *destaddr))
{
AddrAdd(srcaddr, length - 1);
AddrAdd(destaddr, length - 1);
incr = (ULONG64)-1;
}
while (length--)
{
if (GetMemString(srcaddr, &ch, 1) != 1)
{
error(MEMORY);
}
if (SetMemString(destaddr, &ch, 1) != 1)
{
error(MEMORY);
}
AddrAdd(srcaddr, incr);
AddrAdd(destaddr, incr);
if (CheckUserInterrupt())
{
WarnOut("-- User interrupt\n");
return;
}
}
}
/*** fnFillMemory - fill memory with a byte list
*
* Purpose:
* Function of "f<range><bytelist>" command.
*
* To fill a range of memory with the byte list specified.
* The pattern repeats if the range size is larger than the
* byte list size.
*
* Input:
* Start - offset of memory to fill
* length - number of bytes to fill
* *plist - pointer to byte array to define values to set
* length - size of *plist array
*
* Exceptions:
* error exit: MEMORY - memory write access failure
*
* Output:
* memory at Start filled.
*
*************************************************************************/
void
ParseFillMemory(void)
{
HRESULT Status;
BOOL Virtual = TRUE;
ADDR Addr;
ULONG64 Size;
UCHAR Pattern[STRLISTSIZE];
ULONG PatternSize;
ULONG Done;
if (*g_CurCmd == 'p')
{
Virtual = FALSE;
g_CurCmd++;
}
GetRange(&Addr, &Size, 1, SEGREG_DATA);
HexList(Pattern, &PatternSize, 1);
if (PatternSize == 0)
{
error(SYNTAX);
}
if (Virtual)
{
Status = g_Target->FillVirtual(Flat(Addr), (ULONG)Size,
Pattern, PatternSize,
&Done);
}
else
{
Status = g_Target->FillPhysical(Flat(Addr), (ULONG)Size,
Pattern, PatternSize,
&Done);
}
if (Status != S_OK)
{
error(MEMORY);
}
else
{
dprintf("Filled 0x%x bytes\n", Done);
}
}
/*** fnSearchMemory - search memory with for a byte list
*
* Purpose:
* Function of "s<range><bytelist>" command.
*
* To search a range of memory with the byte list specified.
* If a match occurs, the offset of memory is output.
*
* Input:
* Start - offset of memory to start search
* length - size of range to search
* *plist - pointer to byte array to define values to search
* count - size of *plist array
*
* Output:
* None.
*
* Exceptions:
* error exit: MEMORY - memory read access failure
*
*************************************************************************/
void
fnSearchMemory(
PADDR Start,
ULONG64 length,
PUCHAR plist,
ULONG count,
ULONG Granularity
)
{
ULONG searchindex;
ULONG listindex;
UCHAR ch;
ADDR tAddr = *Start;
ULONG64 Found;
LONG64 SearchLength = length;
HRESULT st;
do
{
st = g_Target->SearchVirtual(Flat(*Start),
SearchLength,
plist,
count,
Granularity,
&Found);
if (st == S_OK)
{
ADDRFLAT(&tAddr, Found);
switch(Granularity)
{
case 1:
fnDumpByteMemory(&tAddr, 16);
break;
case 2:
fnDumpWordMemory(&tAddr, 8);
break;
case 4:
fnDumpDwordAndCharMemory(&tAddr, 4);
break;
case 8:
fnDumpQuadMemory(&tAddr, 2, FALSE);
break;
}
// Flush out the output immediately so that
// the user can see partial results during long searches.
FlushCallbacks();
SearchLength -= Found - Flat(*Start) + Granularity;
AddrAdd(Start, (ULONG)(Found - Flat(*Start) + Granularity));
if (CheckUserInterrupt())
{
WarnOut("-- User interrupt\n");
return;
}
}
}
while (SearchLength > 0 && st == S_OK);
}
void
ParseSearchMemory(void)
{
ADDR Addr;
ULONG64 Length;
UCHAR Pat[STRLISTSIZE];
ULONG PatLen;
ULONG Gran;
while (*g_CurCmd == ' ')
{
g_CurCmd++;
}
Gran = 1;
if (*g_CurCmd == '-')
{
g_CurCmd++;
switch(*g_CurCmd)
{
case 'w':
Gran = 2;
break;
case 'd':
Gran = 4;
break;
case 'q':
Gran = 8;
break;
default:
error(SYNTAX);
break;
}
g_CurCmd++;
}
ADDRFLAT(&Addr, 0);
Length = 16;
GetRange(&Addr, &Length, Gran, SEGREG_DATA);
if (Flat(Addr))
{
HexList(Pat, &PatLen, Gran);
if (PatLen == 0)
{
PCSTR Err = "Search pattern missing from";
ReportError(SYNTAX, &Err);
}
fnSearchMemory(&Addr, Length * Gran, Pat, PatLen, Gran);
}
}
/*** fnInputIo - read and output io
*
* Purpose:
* Function of "ib, iw, id <address>" command.
*
* Read (input) and print the value at the specified io address.
*
* Input:
* IoAddress - Address to read.
* InputType - The size type 'b', 'w', or 'd'
*
* Output:
* None.
*
* Notes:
* I/O locations not accessible are output as "??", "????", or
* "????????", depending on size. No errors are returned.
*
*************************************************************************/
void
fnInputIo(
ULONG64 IoAddress,
UCHAR InputType
)
{
ULONG InputValue;
ULONG InputSize = 1;
HRESULT Status;
CHAR Format[] = "%01lx";
InputValue = 0;
if (InputType == 'w')
{
InputSize = 2;
}
else if (InputType == 'd')
{
InputSize = 4;
}
Status = g_Target->ReadIo(Isa, 0, 1, IoAddress, &InputValue, InputSize,
NULL);
dprintf("%s: ", FormatAddr64(IoAddress));
if (Status == S_OK)
{
Format[2] = (CHAR)('0' + (InputSize * 2));
dprintf(Format, InputValue);
}
else
{
while (InputSize--)
{
dprintf("??");
}
}
dprintf("\n");
}
/*** fnOutputIo - output io
*
* Purpose:
* Function of "ob, ow, od <address>" command.
*
* Write a value to the specified io address.
*
* Input:
* IoAddress - Address to read.
* OutputValue - Value to be written
* OutputType - The output size type 'b', 'w', or 'd'
*
* Output:
* None.
*
* Notes:
* No errors are returned.
*
*************************************************************************/
void
fnOutputIo (
ULONG64 IoAddress,
ULONG OutputValue,
UCHAR OutputType
)
{
ULONG OutputSize = 1;
if (OutputType == 'w')
{
OutputSize = 2;
}
else if (OutputType == 'd')
{
OutputSize = 4;
}
g_Target->WriteIo(Isa, 0, 1, IoAddress, &OutputValue, OutputSize, NULL);
}