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reactos/ntoskrnl/kdbg/kdb_symbols.cmake.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: ntoskrnl/kdbg/kdb_symbols.cmake.c
* PURPOSE: Getting symbol information...
*
* PROGRAMMERS: David Welch (welch@cwcom.net)
* Colin Finck (colin@reactos.org)
*/
/* INCLUDES *****************************************************************/
#include <ntoskrnl.h>
#define NDEBUG
#include <cache/section/newmm.h>
#include <debug.h>
/* GLOBALS ******************************************************************/
typedef struct _IMAGE_SYMBOL_INFO_CACHE
{
LIST_ENTRY ListEntry;
ULONG RefCount;
UNICODE_STRING FileName;
PROSSYM_INFO RosSymInfo;
}
IMAGE_SYMBOL_INFO_CACHE, *PIMAGE_SYMBOL_INFO_CACHE;
typedef struct _ROSSYM_KM_OWN_CONTEXT {
LARGE_INTEGER FileOffset;
PFILE_OBJECT FileObject;
} ROSSYM_KM_OWN_CONTEXT, *PROSSYM_KM_OWN_CONTEXT;
static BOOLEAN LoadSymbols;
static LIST_ENTRY SymbolFileListHead;
static KSPIN_LOCK SymbolFileListLock;
//static PROSSYM_INFO KdbpRosSymInfo;
//static ULONG_PTR KdbpImageBase;
BOOLEAN KdbpSymbolsInitialized = FALSE;
/* FUNCTIONS ****************************************************************/
static BOOLEAN
KdbpSeekSymFile(PVOID FileContext, ULONG_PTR Target)
{
PROSSYM_KM_OWN_CONTEXT Context = (PROSSYM_KM_OWN_CONTEXT)FileContext;
Context->FileOffset.QuadPart = Target;
return TRUE;
}
static BOOLEAN
KdbpReadSymFile(PVOID FileContext, PVOID Buffer, ULONG Length)
{
PROSSYM_KM_OWN_CONTEXT Context = (PROSSYM_KM_OWN_CONTEXT)FileContext;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status = MiSimpleRead
(Context->FileObject,
&Context->FileOffset,
Buffer,
Length,
FALSE,
&Iosb);
return NT_SUCCESS(Status);
}
static PROSSYM_KM_OWN_CONTEXT
KdbpCaptureFileForSymbols(PFILE_OBJECT FileObject)
{
PROSSYM_KM_OWN_CONTEXT Context = ExAllocatePool(NonPagedPool, sizeof(*Context));
if (!Context) return NULL;
ObReferenceObject(FileObject);
Context->FileOffset.QuadPart = 0;
Context->FileObject = FileObject;
return Context;
}
static VOID
KdbpReleaseFileForSymbols(PROSSYM_KM_OWN_CONTEXT Context)
{
ObDereferenceObject(Context->FileObject);
ExFreePool(Context);
}
static BOOLEAN
KdbpSymSearchModuleList(
IN PLIST_ENTRY current_entry,
IN PLIST_ENTRY end_entry,
IN PLONG Count,
IN PVOID Address,
IN LPCWSTR Name,
IN INT Index,
OUT PLDR_DATA_TABLE_ENTRY* pLdrEntry)
{
while (current_entry && current_entry != end_entry)
{
*pLdrEntry = CONTAINING_RECORD(current_entry, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
if ((Address && Address >= (PVOID)(*pLdrEntry)->DllBase && Address < (PVOID)((ULONG_PTR)(*pLdrEntry)->DllBase + (*pLdrEntry)->SizeOfImage)) ||
(Name && !_wcsnicmp((*pLdrEntry)->BaseDllName.Buffer, Name, (*pLdrEntry)->BaseDllName.Length / sizeof(WCHAR))) ||
(Index >= 0 && (*Count)++ == Index))
{
return TRUE;
}
current_entry = current_entry->Flink;
}
return FALSE;
}
/*! \brief Find a module...
*
* \param Address If \a Address is not NULL the module containing \a Address
* is searched.
* \param Name If \a Name is not NULL the module named \a Name will be
* searched.
* \param Index If \a Index is >= 0 the Index'th module will be returned.
* \param pLdrEntry Pointer to a PLDR_DATA_TABLE_ENTRY which is filled.
*
* \retval TRUE Module was found, \a pLdrEntry was filled.
* \retval FALSE No module was found.
*/
BOOLEAN
KdbpSymFindModule(
IN PVOID Address OPTIONAL,
IN LPCWSTR Name OPTIONAL,
IN INT Index OPTIONAL,
OUT PLDR_DATA_TABLE_ENTRY* pLdrEntry)
{
LONG Count = 0;
PEPROCESS CurrentProcess;
/* First try to look up the module in the kernel module list. */
if(KdbpSymSearchModuleList(PsLoadedModuleList.Flink,
&PsLoadedModuleList,
&Count,
Address,
Name,
Index,
pLdrEntry))
{
return TRUE;
}
/* That didn't succeed. Try the module list of the current process now. */
CurrentProcess = PsGetCurrentProcess();
if(!CurrentProcess || !CurrentProcess->Peb || !CurrentProcess->Peb->Ldr)
return FALSE;
return KdbpSymSearchModuleList(CurrentProcess->Peb->Ldr->InLoadOrderModuleList.Flink,
&CurrentProcess->Peb->Ldr->InLoadOrderModuleList,
&Count,
Address,
Name,
Index,
pLdrEntry);
}
/*! \brief Print address...
*
* Tries to lookup line number, file name and function name for the given
* address and prints it.
* If no such information is found the address is printed in the format
* <module: offset>, otherwise the format will be
* <module: offset (filename:linenumber (functionname))>
*
* \retval TRUE Module containing \a Address was found, \a Address was printed.
* \retval FALSE No module containing \a Address was found, nothing was printed.
*/
BOOLEAN
KdbSymPrintAddress(
IN PVOID Address,
IN PKTRAP_FRAME Context)
{
int i;
PMEMORY_AREA MemoryArea = NULL;
PROS_SECTION_OBJECT SectionObject;
PLDR_DATA_TABLE_ENTRY LdrEntry;
#if 0
PROSSYM_KM_OWN_CONTEXT FileContext;
#endif
ULONG_PTR RelativeAddress;
NTSTATUS Status;
ROSSYM_LINEINFO LineInfo = {0};
struct {
enum _ROSSYM_REGNAME regname;
size_t ctx_offset;
} regmap[] = {
{ ROSSYM_X86_EDX, FIELD_OFFSET(KTRAP_FRAME, Edx) },
{ ROSSYM_X86_EAX, FIELD_OFFSET(KTRAP_FRAME, Eax) },
{ ROSSYM_X86_ECX, FIELD_OFFSET(KTRAP_FRAME, Ecx) },
{ ROSSYM_X86_EBX, FIELD_OFFSET(KTRAP_FRAME, Ebx) },
{ ROSSYM_X86_ESI, FIELD_OFFSET(KTRAP_FRAME, Esi) },
{ ROSSYM_X86_EDI, FIELD_OFFSET(KTRAP_FRAME, Edi) },
{ ROSSYM_X86_EBP, FIELD_OFFSET(KTRAP_FRAME, Ebp) },
{ ROSSYM_X86_ESP, FIELD_OFFSET(KTRAP_FRAME, HardwareEsp) }
};
if (Context)
{
#if 0
// Disable arguments for now
DPRINT("Has Context %x (EBP %x)\n", Context, Context->Ebp);
LineInfo.Flags = ROSSYM_LINEINFO_HAS_REGISTERS;
#endif
for (i = 0; i < sizeof(regmap) / sizeof(regmap[0]); i++) {
memcpy
(&LineInfo.Registers.Registers[regmap[i].regname],
((PCHAR)Context)+regmap[i].ctx_offset,
sizeof(ULONG_PTR));
DPRINT("DWARF REG[%d] -> %x\n", regmap[i].regname, LineInfo.Registers.Registers[regmap[i].regname]);
}
}
if (!KdbpSymbolsInitialized || !KdbpSymFindModule(Address, NULL, -1, &LdrEntry))
return FALSE;
RelativeAddress = (ULONG_PTR)Address - (ULONG_PTR)LdrEntry->DllBase;
Status = KdbSymGetAddressInformation
(LdrEntry->PatchInformation,
RelativeAddress,
&LineInfo);
if (NT_SUCCESS(Status))
{
DbgPrint("<%wZ:%x (%s:%d (%s))>",
&LdrEntry->BaseDllName, RelativeAddress, LineInfo.FileName, LineInfo.LineNumber, LineInfo.FunctionName);
if (Context && LineInfo.NumParams)
{
int i;
char *comma = "";
DbgPrint("(");
for (i = 0; i < LineInfo.NumParams; i++) {
DbgPrint
("%s%s=%llx",
comma,
LineInfo.Parameters[i].ValueName,
LineInfo.Parameters[i].Value);
comma = ",";
}
DbgPrint(")");
}
return TRUE;
}
else if (Address < MmSystemRangeStart)
{
MemoryArea = MmLocateMemoryAreaByAddress(&PsGetCurrentProcess()->Vm, Address);
if (!MemoryArea || MemoryArea->Type != MEMORY_AREA_SECTION_VIEW)
{
goto end;
}
SectionObject = MemoryArea->Data.SectionData.Section;
if (!(SectionObject->AllocationAttributes & SEC_IMAGE)) goto end;
#if 0
if (MemoryArea->StartingAddress != (PVOID)KdbpImageBase)
{
if (KdbpRosSymInfo)
{
RosSymDelete(KdbpRosSymInfo);
KdbpRosSymInfo = NULL;
KdbpImageBase = 0;
}
if ((FileContext = KdbpCaptureFileForSymbols(SectionObject->FileObject)))
{
if (RosSymCreateFromFile(FileContext, &KdbpRosSymInfo))
KdbpImageBase = (ULONG_PTR)MemoryArea->StartingAddress;
KdbpReleaseFileForSymbols(FileContext);
}
}
if (KdbpRosSymInfo)
{
RelativeAddress = (ULONG_PTR)Address - KdbpImageBase;
RosSymFreeInfo(&LineInfo);
Status = KdbSymGetAddressInformation
(KdbpRosSymInfo,
RelativeAddress,
&LineInfo);
if (NT_SUCCESS(Status))
{
DbgPrint
("<%wZ:%x (%s:%d (%s))>",
&SectionObject->FileObject->FileName,
RelativeAddress,
LineInfo.FileName,
LineInfo.LineNumber,
LineInfo.FunctionName);
if (Context && LineInfo.NumParams)
{
int i;
char *comma = "";
DbgPrint("(");
for (i = 0; i < LineInfo.NumParams; i++) {
DbgPrint
("%s%s=%llx",
comma,
LineInfo.Parameters[i].ValueName,
LineInfo.Parameters[i].Value);
comma = ",";
}
DbgPrint(")");
}
return TRUE;
}
}
#endif
}
end:
DbgPrint("<%wZ:%x>", &LdrEntry->BaseDllName, RelativeAddress);
return TRUE;
}
/*! \brief Get information for an address (source file, line number,
* function name)
*
* \param SymbolInfo Pointer to ROSSYM_INFO.
* \param RelativeAddress Relative address to look up.
* \param LineNumber Pointer to an ULONG which is filled with the line
* number (can be NULL)
* \param FileName Pointer to an array of CHARs which gets filled with
* the filename (can be NULL)
* \param FunctionName Pointer to an array of CHARs which gets filled with
* the function name (can be NULL)
*
* \returns NTSTATUS error code.
* \retval STATUS_SUCCESS At least one of the requested informations was found.
* \retval STATUS_UNSUCCESSFUL None of the requested information was found.
*/
NTSTATUS
KdbSymGetAddressInformation(
IN PROSSYM_INFO RosSymInfo,
IN ULONG_PTR RelativeAddress,
IN PROSSYM_LINEINFO LineInfo)
{
if (!KdbpSymbolsInitialized ||
!RosSymInfo ||
!RosSymGetAddressInformation(RosSymInfo, RelativeAddress, LineInfo))
{
return STATUS_UNSUCCESSFUL;
}
return STATUS_SUCCESS;
}
/*! \brief Find cached symbol file.
*
* Looks through the list of cached symbol files and tries to find an already
* loaded one.
*
* \param FileName FileName of the symbol file to look for.
*
* \returns A pointer to the cached symbol info.
* \retval NULL No cached info found.
*
* \sa KdbpSymAddCachedFile
*/
PROSSYM_INFO
KdbpSymFindCachedFile(
IN PUNICODE_STRING FileName)
{
PIMAGE_SYMBOL_INFO_CACHE Current;
PLIST_ENTRY CurrentEntry;
KIRQL Irql;
KeAcquireSpinLock(&SymbolFileListLock, &Irql);
CurrentEntry = SymbolFileListHead.Flink;
while (CurrentEntry != (&SymbolFileListHead))
{
Current = CONTAINING_RECORD(CurrentEntry, IMAGE_SYMBOL_INFO_CACHE, ListEntry);
if (RtlEqualUnicodeString(&Current->FileName, FileName, TRUE))
{
Current->RefCount++;
KeReleaseSpinLock(&SymbolFileListLock, Irql);
DPRINT("Found cached file!\n");
return Current->RosSymInfo;
}
CurrentEntry = CurrentEntry->Flink;
}
KeReleaseSpinLock(&SymbolFileListLock, Irql);
DPRINT("Cached file not found!\n");
return NULL;
}
/*! \brief Add a symbol file to the cache.
*
* \param FileName Filename of the symbol file.
* \param RosSymInfo Pointer to the symbol info.
*
* \sa KdbpSymRemoveCachedFile
*/
static VOID
KdbpSymAddCachedFile(
IN PUNICODE_STRING FileName,
IN PROSSYM_INFO RosSymInfo)
{
PIMAGE_SYMBOL_INFO_CACHE CacheEntry;
DPRINT("Adding symbol file: %wZ RosSymInfo = %p\n", FileName, RosSymInfo);
/* allocate entry */
CacheEntry = ExAllocatePoolWithTag(NonPagedPool, sizeof (IMAGE_SYMBOL_INFO_CACHE), TAG_KDBS);
ASSERT(CacheEntry);
RtlZeroMemory(CacheEntry, sizeof (IMAGE_SYMBOL_INFO_CACHE));
/* fill entry */
CacheEntry->FileName.Buffer = ExAllocatePoolWithTag(NonPagedPool,
FileName->Length,
TAG_KDBS);
CacheEntry->FileName.MaximumLength = FileName->Length;
RtlCopyUnicodeString(&CacheEntry->FileName, FileName);
ASSERT(CacheEntry->FileName.Buffer);
CacheEntry->RefCount = 1;
CacheEntry->RosSymInfo = RosSymInfo;
InsertTailList(&SymbolFileListHead, &CacheEntry->ListEntry); /* FIXME: Lock list? */
}
/*! \brief Remove a symbol file (reference) from the cache.
*
* Tries to find a cache entry matching the given symbol info and decreases
* it's reference count. If the refcount is 0 after decreasing it the cache
* entry will be removed from the list and freed.
*
* \param RosSymInfo Pointer to the symbol info.
*
* \sa KdbpSymAddCachedFile
*/
static VOID
KdbpSymRemoveCachedFile(
IN PROSSYM_INFO RosSymInfo)
{
PIMAGE_SYMBOL_INFO_CACHE Current;
PLIST_ENTRY CurrentEntry;
KIRQL Irql;
KeAcquireSpinLock(&SymbolFileListLock, &Irql);
CurrentEntry = SymbolFileListHead.Flink;
while (CurrentEntry != (&SymbolFileListHead))
{
Current = CONTAINING_RECORD(CurrentEntry, IMAGE_SYMBOL_INFO_CACHE, ListEntry);
if (Current->RosSymInfo == RosSymInfo) /* found */
{
ASSERT(Current->RefCount > 0);
Current->RefCount--;
if (Current->RefCount < 1)
{
RemoveEntryList(&Current->ListEntry);
RosSymDelete(Current->RosSymInfo);
ExFreePool(Current);
}
KeReleaseSpinLock(&SymbolFileListLock, Irql);
return;
}
CurrentEntry = CurrentEntry->Flink;
}
KeReleaseSpinLock(&SymbolFileListLock, Irql);
}
/*! \brief Loads a symbol file.
*
* \param FileName Filename of the symbol file to load.
* \param RosSymInfo Pointer to a ROSSYM_INFO which gets filled.
*
* \sa KdbpSymUnloadModuleSymbols
*/
VOID
KdbpSymLoadModuleSymbols(
IN PUNICODE_STRING FileName,
OUT PROSSYM_INFO *RosSymInfo)
{
OBJECT_ATTRIBUTES ObjectAttributes;
HANDLE FileHandle;
NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
PFILE_OBJECT FileObject;
PROSSYM_KM_OWN_CONTEXT FileContext;
/* Allow KDB to break on module load */
KdbModuleLoaded(FileName);
if (!LoadSymbols)
{
*RosSymInfo = NULL;
return;
}
/* Try to find cached (already loaded) symbol file */
*RosSymInfo = KdbpSymFindCachedFile(FileName);
if (*RosSymInfo)
{
DPRINT("Found cached symbol file %wZ\n", FileName);
return;
}
/* Open the file */
InitializeObjectAttributes(&ObjectAttributes,
FileName,
OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
NULL,
NULL);
DPRINT("Attempting to open image: %wZ\n", FileName);
Status = ZwOpenFile(&FileHandle,
FILE_READ_ACCESS | SYNCHRONIZE,
&ObjectAttributes,
&IoStatusBlock,
FILE_SHARE_READ | FILE_SHARE_WRITE,
FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT);
if (!NT_SUCCESS(Status))
{
DPRINT("Could not open image file(%x): %wZ\n", Status, FileName);
return;
}
DPRINT("Loading symbols from %wZ...\n", FileName);
Status = ObReferenceObjectByHandle
(FileHandle,
FILE_READ_DATA | SYNCHRONIZE,
NULL,
KernelMode,
(PVOID*)&FileObject,
NULL);
if (!NT_SUCCESS(Status))
{
DPRINT("Could not get the file object\n");
ZwClose(FileHandle);
return;
}
if ((FileContext = KdbpCaptureFileForSymbols(FileObject)))
{
if (RosSymCreateFromFile(FileContext, RosSymInfo))
{
/* add file to cache */
int i;
UNICODE_STRING TruncatedName = *FileName;
for (i = (TruncatedName.Length / sizeof(WCHAR)) - 1; i >= 0; i--)
if (TruncatedName.Buffer[i] == '\\') {
TruncatedName.Buffer += i+1;
TruncatedName.Length -= (i+1)*sizeof(WCHAR);
TruncatedName.MaximumLength -= (i+1)*sizeof(WCHAR);
break;
}
KdbpSymAddCachedFile(&TruncatedName, *RosSymInfo);
DPRINT("Installed symbols: %wZ %p\n", &TruncatedName, *RosSymInfo);
}
KdbpReleaseFileForSymbols(FileContext);
}
ObDereferenceObject(FileObject);
ZwClose(FileHandle);
}
VOID
KdbSymProcessSymbols(
IN PLDR_DATA_TABLE_ENTRY LdrEntry)
{
if (!LoadSymbols)
{
LdrEntry->PatchInformation = NULL;
return;
}
/* Remove symbol info if it already exists */
if (LdrEntry->PatchInformation) {
KdbpSymRemoveCachedFile(LdrEntry->PatchInformation);
}
/* Error loading symbol info, try to load it from file */
KdbpSymLoadModuleSymbols(&LdrEntry->FullDllName,
(PROSSYM_INFO*)&LdrEntry->PatchInformation);
if (!LdrEntry->PatchInformation) {
// HACK: module dll names don't identify the real files
UNICODE_STRING SystemRoot;
UNICODE_STRING ModuleNameCopy;
RtlInitUnicodeString(&SystemRoot, L"\\SystemRoot\\System32\\Drivers\\");
ModuleNameCopy.Length = 0;
ModuleNameCopy.MaximumLength =
LdrEntry->BaseDllName.MaximumLength + SystemRoot.MaximumLength;
ModuleNameCopy.Buffer = ExAllocatePool(NonPagedPool, SystemRoot.MaximumLength + LdrEntry->BaseDllName.MaximumLength);
RtlCopyUnicodeString(&ModuleNameCopy, &SystemRoot);
RtlCopyMemory
(ModuleNameCopy.Buffer + ModuleNameCopy.Length / sizeof(WCHAR),
LdrEntry->BaseDllName.Buffer,
LdrEntry->BaseDllName.Length);
ModuleNameCopy.Length += LdrEntry->BaseDllName.Length;
KdbpSymLoadModuleSymbols(&ModuleNameCopy,
(PROSSYM_INFO*)&LdrEntry->PatchInformation);
if (!LdrEntry->PatchInformation) {
SystemRoot.Length -= strlen("Drivers\\") * sizeof(WCHAR);
RtlCopyUnicodeString(&ModuleNameCopy, &SystemRoot);
RtlCopyMemory
(ModuleNameCopy.Buffer + ModuleNameCopy.Length / sizeof(WCHAR),
LdrEntry->BaseDllName.Buffer,
LdrEntry->BaseDllName.Length);
ModuleNameCopy.Length += LdrEntry->BaseDllName.Length;
KdbpSymLoadModuleSymbols(&ModuleNameCopy,
(PROSSYM_INFO*)&LdrEntry->PatchInformation);
}
RtlFreeUnicodeString(&ModuleNameCopy);
}
/* It already added symbols to cache */
DPRINT("Installed symbols: %wZ@%p-%p %p\n",
&LdrEntry->BaseDllName,
LdrEntry->DllBase,
(PVOID)(LdrEntry->SizeOfImage + (ULONG_PTR)LdrEntry->DllBase),
LdrEntry->PatchInformation);
}
VOID
NTAPI
KdbDebugPrint(
PCH Message,
ULONG Length)
{
/* Nothing here */
}
static PVOID KdbpSymAllocMem(ULONG_PTR size)
{
return ExAllocatePoolWithTag(NonPagedPool, size, 'RSYM');
}
static VOID KdbpSymFreeMem(PVOID Area)
{
return ExFreePool(Area);
}
static BOOLEAN KdbpSymReadMem(PVOID FileContext, ULONG_PTR* TargetDebug, PVOID SourceMem, ULONG Size)
{
return NT_SUCCESS(KdbpSafeReadMemory(TargetDebug, SourceMem, Size));
}
static ROSSYM_CALLBACKS KdbpRosSymCallbacks = {
KdbpSymAllocMem, KdbpSymFreeMem,
KdbpReadSymFile, KdbpSeekSymFile,
KdbpSymReadMem
};
/*! \brief Initializes the KDB symbols implementation.
*
* \param DispatchTable Pointer to the KD dispatch table
* \param BootPhase Phase of initialization
*/
VOID
NTAPI
KdbInitialize(
PKD_DISPATCH_TABLE DispatchTable,
ULONG BootPhase)
{
PCHAR p1, p2;
SHORT Found = FALSE;
CHAR YesNo;
PLDR_DATA_TABLE_ENTRY LdrEntry;
DPRINT("KdbSymInit() BootPhase=%d\n", BootPhase);
LoadSymbols = FALSE;
#if DBG
/* Load symbols only if we have 96Mb of RAM or more */
if (MmNumberOfPhysicalPages >= 0x6000)
LoadSymbols = TRUE;
#endif
if (BootPhase == 0)
{
/* Write out the functions that we support for now */
DispatchTable->KdpInitRoutine = KdpKdbgInit;
DispatchTable->KdpPrintRoutine = KdbDebugPrint;
/* Register as a Provider */
InsertTailList(&KdProviders, &DispatchTable->KdProvidersList);
/* Perform actual initialization of symbol module */
//NtoskrnlModuleObject->PatchInformation = NULL;
//LdrHalModuleObject->PatchInformation = NULL;
InitializeListHead(&SymbolFileListHead);
KeInitializeSpinLock(&SymbolFileListLock);
/* Check the command line for /LOADSYMBOLS, /NOLOADSYMBOLS,
* /LOADSYMBOLS={YES|NO}, /NOLOADSYMBOLS={YES|NO} */
ASSERT(KeLoaderBlock);
p1 = KeLoaderBlock->LoadOptions;
while('\0' != *p1 && NULL != (p2 = strchr(p1, '/')))
{
p2++;
Found = 0;
if (0 == _strnicmp(p2, "LOADSYMBOLS", 11))
{
Found = +1;
p2 += 11;
}
else if (0 == _strnicmp(p2, "NOLOADSYMBOLS", 13))
{
Found = -1;
p2 += 13;
}
if (0 != Found)
{
while (isspace(*p2))
{
p2++;
}
if ('=' == *p2)
{
p2++;
while (isspace(*p2))
{
p2++;
}
YesNo = toupper(*p2);
if ('N' == YesNo || 'F' == YesNo || '0' == YesNo)
{
Found = -1 * Found;
}
}
LoadSymbols = (0 < Found);
}
p1 = p2;
}
RosSymInit(&KdbpRosSymCallbacks);
}
else if (BootPhase == 3)
{
/* Load symbols for NTOSKRNL.EXE.
It is always the first module in PsLoadedModuleList. KeLoaderBlock can't be used here as its content is just temporary. */
LdrEntry = CONTAINING_RECORD(PsLoadedModuleList.Flink, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
KdbSymProcessSymbols(LdrEntry);
/* Also load them for HAL.DLL. */
LdrEntry = CONTAINING_RECORD(PsLoadedModuleList.Flink->Flink, LDR_DATA_TABLE_ENTRY, InLoadOrderLinks);
KdbSymProcessSymbols(LdrEntry);
KdbpSymbolsInitialized = TRUE;
}
}
/* EOF */
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