[ion] 24331: - Fully use KeLoaderBlock->InLoadOrderListHead for driver loading and symbol lookups, instead of KeLoaderModules/KeLoaderModuleCount. Still not 100% compatible with NTLDR (since it uses BootDriverListHead with a special structure), but much closer to a portable design that doesn't rely on static kernel data. - Change some internal functions to use UNICODE_STRING instead of PCHAR since this is how LdrEntry->BaseDllName is, and also it's closer to NT Design.
1 Oct
2006
1 Oct
'06
5:05 a.m.
Author: ion
Date: Sun Oct 1 09:05:57 2006
New Revision: 24331
URL: http://svn.reactos.org/svn/reactos?rev=24331&view=rev
Log:
- Fully use KeLoaderBlock->InLoadOrderListHead for driver loading and symbol lookups,
instead of KeLoaderModules/KeLoaderModuleCount. Still not 100% compatible with NTLDR
(since it uses BootDriverListHead with a special structure), but much closer to a portable
design that doesn't rely on static kernel data.
- Change some internal functions to use UNICODE_STRING instead of PCHAR since this is how
LdrEntry->BaseDllName is, and also it's closer to NT Design.
Modified:
trunk/reactos/include/reactos/rosldr.h
trunk/reactos/ntoskrnl/ex/init.c
trunk/reactos/ntoskrnl/include/internal/kd.h
trunk/reactos/ntoskrnl/io/iomgr/driver.c
trunk/reactos/ntoskrnl/kdbg/kdb_symbols.c
trunk/reactos/ntoskrnl/ke/i386/kiinit.c
Modified: trunk/reactos/include/reactos/rosldr.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/rosldr.h?r…
==============================================================================
--- trunk/reactos/include/reactos/rosldr.h (original)
+++ trunk/reactos/include/reactos/rosldr.h Sun Oct 1 09:05:57 2006
@@ -44,8 +44,6 @@
ULONG KernelBase;
} ROS_LOADER_PARAMETER_BLOCK, *PROS_LOADER_PARAMETER_BLOCK;
-extern LOADER_MODULE KeLoaderModules[64];
-extern ULONG KeLoaderModuleCount;
extern ULONG MmFreeLdrMemHigher, MmFreeLdrMemLower;
extern BOOLEAN AcpiTableDetected;
extern ULONG MmFreeLdrPageDirectoryStart, MmFreeLdrPageDirectoryEnd;
Modified: trunk/reactos/ntoskrnl/ex/init.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ex/init.c?rev=243…
==============================================================================
--- trunk/reactos/ntoskrnl/ex/init.c (original)
+++ trunk/reactos/ntoskrnl/ex/init.c Sun Oct 1 09:05:57 2006
@@ -35,6 +35,7 @@
extern ULONG_PTR LastKrnlPhysAddr;
extern ULONG_PTR LastKernelAddress;
extern LOADER_MODULE KeLoaderModules[64];
+extern ULONG KeLoaderModuleCount;
extern PRTL_MESSAGE_RESOURCE_DATA KiBugCodeMessages;
BOOLEAN NoGuiBoot = FALSE;
Modified: trunk/reactos/ntoskrnl/include/internal/kd.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/kd.h (original)
+++ trunk/reactos/ntoskrnl/include/internal/kd.h Sun Oct 1 09:05:57 2006
@@ -77,7 +77,7 @@
KdbSymUnloadDriverSymbols(IN PLDR_DATA_TABLE_ENTRY ModuleObject);
VOID
-KdbSymProcessBootSymbols(IN PCHAR FileName);
+KdbSymProcessBootSymbols(IN PUNICODE_STRING FileName);
VOID
KdbSymInit(
Modified: trunk/reactos/ntoskrnl/io/iomgr/driver.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/io/iomgr/driver.c…
==============================================================================
--- trunk/reactos/ntoskrnl/io/iomgr/driver.c (original)
+++ trunk/reactos/ntoskrnl/io/iomgr/driver.c Sun Oct 1 09:05:57 2006
@@ -462,9 +462,10 @@
if (ServiceStart == 0)
{
- ULONG i;
- CHAR SearchName[256];
- PCHAR ModuleName;
+ WCHAR SearchNameBuffer[256];
+ UNICODE_STRING SearchName;
+ PLIST_ENTRY ListHead, NextEntry;
+ PLDR_DATA_TABLE_ENTRY LdrEntry;
/*
* FIXME:
@@ -472,28 +473,37 @@
* stored in registry entry ImageName and use the whole path
* (requires change in FreeLoader).
*/
-
- _snprintf(SearchName, sizeof(SearchName), "%wZ.sys", ServiceName);
- for (i = 1; i < KeLoaderModuleCount; i++)
+ swprintf(SearchNameBuffer, L"%wZ.sys", ServiceName);
+ RtlInitUnicodeString(&SearchName, SearchNameBuffer);
+
+ /* Loop the boot modules */
+ ListHead = &KeLoaderBlock->LoadOrderListHead;
+ NextEntry = ListHead->Flink->Flink;
+ while (ListHead != NextEntry)
{
- ModuleName = (PCHAR)KeLoaderModules[i].String;
- if (!_stricmp(ModuleName, SearchName))
+ /* Get the entry */
+ LdrEntry = CONTAINING_RECORD(NextEntry,
+ LDR_DATA_TABLE_ENTRY,
+ InLoadOrderLinks);
+
+ /* Compare names */
+ if (RtlEqualUnicodeString(&LdrEntry->BaseDllName, &SearchName,
TRUE))
{
- DPRINT("Initializing boot module\n");
-
- /* Tell, that the module is already loaded */
- KeLoaderModules[i].Reserved = 1;
-
- Status = LdrProcessModule(
- (PVOID)KeLoaderModules[i].ModStart,
- &ServiceImagePath,
- ModuleObject);
-
- KDB_SYMBOLFILE_HOOK(SearchName);
-
- break;
+ /* Tell, that the module is already loaded */
+ LdrEntry->Flags |= LDRP_ENTRY_INSERTED;
+
+ Status = LdrProcessModule(LdrEntry->DllBase,
+ &ServiceImagePath,
+ ModuleObject);
+
+ KDB_SYMBOLFILE_HOOK(&SearchName);
+ break;
}
+
+ /* Go to the next driver */
+ NextEntry = NextEntry->Flink;
}
+
if (!NT_SUCCESS(Status))
/* Try to load it. It may just have been installed by PnP manager */
Status = LdrLoadModule(&ServiceImagePath, ModuleObject);
@@ -817,23 +827,23 @@
IopInitializeBuiltinDriver(
PDEVICE_NODE ModuleDeviceNode,
PVOID ModuleLoadBase,
- PCHAR FileName,
+ PUNICODE_STRING ModuleName,
ULONG ModuleLength)
{
PLDR_DATA_TABLE_ENTRY ModuleObject;
PDEVICE_NODE DeviceNode;
PDRIVER_OBJECT DriverObject;
NTSTATUS Status;
- PCHAR FileNameWithoutPath;
+ PWCHAR FileNameWithoutPath;
LPWSTR FileExtension;
- DPRINT("Initializing driver '%s' at %08lx, length 0x%08lx\n",
- FileName, ModuleLoadBase, ModuleLength);
+ DPRINT("Initializing driver '%wZ' at %08lx, length 0x%08lx\n",
+ ModuleName, ModuleLoadBase, ModuleLength);
/*
* Display 'Loading XXX...' message
*/
- IopDisplayLoadingMessage(FileName, FALSE);
+ IopDisplayLoadingMessage(ModuleName->Buffer, TRUE);
/*
* Determine the right device object
@@ -845,7 +855,7 @@
Status = IopCreateDeviceNode(IopRootDeviceNode, NULL, &DeviceNode);
if (!NT_SUCCESS(Status))
{
- CPRINT("Driver '%s' load failed, status (%x)\n", FileName,
Status);
+ CPRINT("Driver '%wZ' load failed, status (%x)\n", ModuleName,
Status);
return(Status);
}
} else
@@ -857,30 +867,28 @@
* Generate filename without path (not needed by freeldr)
*/
- FileNameWithoutPath = strrchr(FileName, '\\');
+ FileNameWithoutPath = wcsrchr(ModuleName->Buffer, L'\\');
if (FileNameWithoutPath == NULL)
{
- FileNameWithoutPath = FileName;
+ FileNameWithoutPath = ModuleName->Buffer;
}
/*
* Load the module
*/
-
- RtlCreateUnicodeStringFromAsciiz(&DeviceNode->ServiceName,
- FileNameWithoutPath);
+ RtlCreateUnicodeString(&DeviceNode->ServiceName, FileNameWithoutPath);
Status = LdrProcessModule(ModuleLoadBase, &DeviceNode->ServiceName,
&ModuleObject);
if (!NT_SUCCESS(Status))
{
if (ModuleDeviceNode == NULL)
IopFreeDeviceNode(DeviceNode);
- CPRINT("Driver '%s' load failed, status (%x)\n", FileName,
Status);
+ CPRINT("Driver '%wZ' load failed, status (%x)\n", ModuleName,
Status);
return Status;
}
/* Load symbols */
- KDB_SYMBOLFILE_HOOK(FileName);
+ KDB_SYMBOLFILE_HOOK(ModuleName);
/*
* Strip the file extension from ServiceName
@@ -904,7 +912,7 @@
{
if (ModuleDeviceNode == NULL)
IopFreeDeviceNode(DeviceNode);
- CPRINT("Driver '%s' load failed, status (%x)\n", FileName,
Status);
+ CPRINT("Driver '%wZ' load failed, status (%x)\n", ModuleName,
Status);
return Status;
}
@@ -929,75 +937,66 @@
* None
*/
-VOID FASTCALL
+VOID
+FASTCALL
IopInitializeBootDrivers(VOID)
{
- ULONG BootDriverCount;
- ULONG ModuleStart;
- ULONG ModuleSize;
- ULONG ModuleLoaded;
- PCHAR ModuleName;
- PCHAR Extension;
- ULONG i;
- UNICODE_STRING DriverName;
- NTSTATUS Status;
-
- DPRINT("IopInitializeBootDrivers()\n");
-
- BootDriverCount = 0;
- for (i = 0; i < KeLoaderModuleCount; i++)
- {
- ModuleStart = KeLoaderModules[i].ModStart;
- ModuleSize = KeLoaderModules[i].ModEnd - ModuleStart;
- ModuleName = (PCHAR)KeLoaderModules[i].String;
- ModuleLoaded = KeLoaderModules[i].Reserved;
- Extension = strrchr(ModuleName, '.');
- if (Extension == NULL)
- Extension = "";
-
- if (!_stricmp(Extension, ".sym") || !_stricmp(Extension,
".dll"))
- {
- /* Process symbols for *.exe and *.dll */
- KDB_SYMBOLFILE_HOOK(ModuleName);
-
- /* Log *.exe and *.dll files */
- RtlCreateUnicodeStringFromAsciiz(&DriverName, ModuleName);
- IopBootLog(&DriverName, TRUE);
- RtlFreeUnicodeString(&DriverName);
- }
- else if (!_stricmp(Extension, ".sys"))
- {
- /* Initialize and log boot start driver */
- if (!ModuleLoaded)
- {
- Status = IopInitializeBuiltinDriver(NULL,
- (PVOID)ModuleStart,
- ModuleName,
- ModuleSize);
- RtlCreateUnicodeStringFromAsciiz(&DriverName, ModuleName);
- IopBootLog(&DriverName, NT_SUCCESS(Status) ? TRUE : FALSE);
- RtlFreeUnicodeString(&DriverName);
- }
- BootDriverCount++;
- }
- }
-
- /*
- * Free memory for all boot files, except ntoskrnl.exe.
- */
- for (i = 1; i < KeLoaderModuleCount; i++)
- {
- MiFreeBootDriverMemory((PVOID)KeLoaderModules[i].ModStart,
- KeLoaderModules[i].ModEnd - KeLoaderModules[i].ModStart);
- }
-
- KeLoaderModuleCount = 0;
-
- if (BootDriverCount == 0)
- {
- DbgPrint("No boot drivers available.\n");
- KEBUGCHECK(INACCESSIBLE_BOOT_DEVICE);
- }
+ PLIST_ENTRY ListHead, NextEntry;
+ PLDR_DATA_TABLE_ENTRY LdrEntry;
+ UNICODE_STRING NtosSymName = RTL_CONSTANT_STRING(L"ntoskrnl.sym");
+
+ /* Hack for NTOSKRNL.SYM */
+ KDB_SYMBOLFILE_HOOK(&NtosSymName);
+
+ /* Loop the boot modules */
+ ListHead = &KeLoaderBlock->LoadOrderListHead;
+ NextEntry = ListHead->Flink;
+ while (ListHead != NextEntry)
+ {
+ /* Get the entry */
+ LdrEntry = CONTAINING_RECORD(NextEntry,
+ LDR_DATA_TABLE_ENTRY,
+ InLoadOrderLinks);
+
+ /*
+ * HACK: Make sure we're loading a driver
+ * (we should be using BootDriverListHead!)
+ */
+ if (wcsstr(LdrEntry->BaseDllName.Buffer, L".sys"))
+ {
+ /* Make sure we didn't load this driver already */
+ if (!(LdrEntry->Flags & LDRP_ENTRY_INSERTED))
+ {
+ /* Initialize it */
+ IopInitializeBuiltinDriver(NULL,
+ LdrEntry->DllBase,
+ &LdrEntry->BaseDllName,
+ LdrEntry->SizeOfImage);
+ }
+ }
+
+ /* Go to the next driver */
+ NextEntry = NextEntry->Flink;
+ }
+
+ /* Loop modules again */
+ NextEntry = ListHead->Flink->Flink;
+ while (ListHead != NextEntry)
+ {
+ /* Get the entry */
+ LdrEntry = CONTAINING_RECORD(NextEntry,
+ LDR_DATA_TABLE_ENTRY,
+ InLoadOrderLinks);
+
+ /* Free memory */
+ MiFreeBootDriverMemory(LdrEntry->DllBase, LdrEntry->SizeOfImage);
+
+ /* Go to the next driver */
+ NextEntry = NextEntry->Flink;
+ }
+
+ /* In old ROS, the loader list became empty after this point. Simulate. */
+ InitializeListHead(&KeLoaderBlock->LoadOrderListHead);
}
/*
Modified: trunk/reactos/ntoskrnl/kdbg/kdb_symbols.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/kdbg/kdb_symbols.…
==============================================================================
--- trunk/reactos/ntoskrnl/kdbg/kdb_symbols.c (original)
+++ trunk/reactos/ntoskrnl/kdbg/kdb_symbols.c Sun Oct 1 09:05:57 2006
@@ -588,29 +588,28 @@
* \param FileName Filename for which the symbols are loaded.
*/
VOID
-KdbSymProcessBootSymbols(IN PCHAR FileName)
+KdbSymProcessBootSymbols(IN PUNICODE_STRING FileName)
{
PLDR_DATA_TABLE_ENTRY ModuleObject;
- UNICODE_STRING UnicodeString;
- ANSI_STRING AnsiString;
- ULONG i;
+ BOOLEAN Found = FALSE;
BOOLEAN IsRaw;
-
- DPRINT("KdbSymProcessBootSymbols(%s)\n", FileName);
-
- if (0 == _stricmp(FileName, "ntoskrnl.sym"))
- {
- RtlInitAnsiString(&AnsiString, "ntoskrnl.exe");
+ PLIST_ENTRY ListHead, NextEntry;
+ PLDR_DATA_TABLE_ENTRY LdrEntry;
+ UNICODE_STRING NtosSymName = RTL_CONSTANT_STRING(L"ntoskrnl.sym");
+ UNICODE_STRING NtosName = RTL_CONSTANT_STRING(L"ntoskrnl.exe");
+ DPRINT("KdbSymProcessBootSymbols(%wZ)\n", FileName);
+
+ if (RtlEqualUnicodeString(FileName, &NtosSymName, TRUE))
+ {
+ FileName = &NtosName;
IsRaw = TRUE;
}
else
{
- RtlInitAnsiString(&AnsiString, FileName);
IsRaw = FALSE;
}
- RtlAnsiStringToUnicodeString(&UnicodeString, &AnsiString, TRUE);
- ModuleObject = LdrGetModuleObject(&UnicodeString);
- RtlFreeUnicodeString(&UnicodeString);
+
+ ModuleObject = LdrGetModuleObject(FileName);
if (ModuleObject != NULL)
{
@@ -620,16 +619,27 @@
return;
}
- for (i = 0; i < KeLoaderModuleCount; i++)
+ ListHead = &KeLoaderBlock->LoadOrderListHead;
+ NextEntry = ListHead->Flink;
+ while (ListHead != NextEntry)
{
- if (0 == _stricmp(FileName, (PCHAR)KeLoaderModules[i].String))
- {
- break;
- }
- }
- if (i < KeLoaderModuleCount)
+ /* Get the entry */
+ LdrEntry = CONTAINING_RECORD(NextEntry,
+ LDR_DATA_TABLE_ENTRY,
+ InLoadOrderLinks);
+
+ if (RtlEqualUnicodeString(FileName, &LdrEntry->BaseDllName, TRUE))
+ {
+ Found = TRUE;
+ break;
+ }
+
+ /* Go to the next one */
+ NextEntry = NextEntry->Flink;
+ }
+
+ if (Found)
{
- KeLoaderModules[i].Reserved = 1;
if (ModuleObject->PatchInformation != NULL)
{
KdbpSymRemoveCachedFile(ModuleObject->PatchInformation);
@@ -637,8 +647,8 @@
if (IsRaw)
{
- if (! RosSymCreateFromRaw((PVOID) KeLoaderModules[i].ModStart,
- KeLoaderModules[i].ModEnd -
KeLoaderModules[i].ModStart,
+ if (! RosSymCreateFromRaw(LdrEntry->DllBase,
+ LdrEntry->SizeOfImage,
(PROSSYM_INFO*)&ModuleObject->PatchInformation))
{
return;
@@ -646,8 +656,8 @@
}
else
{
- if (! RosSymCreateFromMem((PVOID) KeLoaderModules[i].ModStart,
- KeLoaderModules[i].ModEnd -
KeLoaderModules[i].ModStart,
+ if (! RosSymCreateFromMem(LdrEntry->DllBase,
+ LdrEntry->SizeOfImage,
(PROSSYM_INFO*)&ModuleObject->PatchInformation))
{
return;
@@ -655,12 +665,9 @@
}
/* add file to cache */
- RtlInitAnsiString(&AnsiString, FileName);
- RtlAnsiStringToUnicodeString(&UnicodeString, &AnsiString, TRUE);
- KdbpSymAddCachedFile(&UnicodeString, ModuleObject->PatchInformation);
- RtlFreeUnicodeString(&UnicodeString);
-
- DPRINT("Installed symbols: %s@%08x-%08x %p\n",
+ KdbpSymAddCachedFile(FileName, ModuleObject->PatchInformation);
+
+ DPRINT("Installed symbols: %wZ@%08x-%08x %p\n",
FileName,
ModuleObject->DllBase,
ModuleObject->SizeOfImage + (ULONG)ModuleObject->DllBase,
Modified: trunk/reactos/ntoskrnl/ke/i386/kiinit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/kiinit.c?…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/kiinit.c (original)
+++ trunk/reactos/ntoskrnl/ke/i386/kiinit.c Sun Oct 1 09:05:57 2006
@@ -379,7 +379,7 @@
KiInitializeKernel(&KiInitialProcess.Pcb,
InitialThread,
InitialStack,
- &Pcr->PrcbData, //(PKPRCB)__readfsdword(KPCR_PRCB),
+ (PKPRCB)__readfsdword(KPCR_PRCB),
Cpu,
LoaderBlock);
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