[hbelusca] 68841: [NTOS:KD] - Fix the condition check when setting twice (or more) the same breakpoint. - Implement support for deferred breakpoints. For more information, see: http://www.osronline...
28 Aug
2015
28 Aug
'15
3:03 a.m.
Author: hbelusca
Date: Fri Aug 28 03:03:26 2015
New Revision: 68841
URL: http://svn.reactos.org/svn/reactos?rev=68841&view=rev
Log:
[NTOS:KD]
- Fix the condition check when setting twice (or more) the same breakpoint.
- Implement support for deferred breakpoints. For more information, see:
http://www.osronline.com/article.cfm?article=541 (which also exposes an interesting
problem about them).
Modified:
trunk/reactos/ntoskrnl/include/internal/kd.h
trunk/reactos/ntoskrnl/include/internal/kd64.h
trunk/reactos/ntoskrnl/kd64/kdbreak.c
trunk/reactos/ntoskrnl/kd64/kdinit.c
trunk/reactos/ntoskrnl/ke/amd64/cpu.c
trunk/reactos/ntoskrnl/ke/amd64/trap.S
trunk/reactos/ntoskrnl/ke/i386/traphdlr.c
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 [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/kd.h [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -67,7 +67,7 @@
IN PROSSYM_INFO RosSymInfo,
IN ULONG_PTR RelativeAddress,
#ifdef __ROS_DWARF__
- IN PROSSYM_LINEINFO RosSymLineInfo
+ IN PROSSYM_LINEINFO RosSymLineInfo
#else
OUT PULONG LineNumber OPTIONAL,
OUT PCH FileName OPTIONAL,
Modified: trunk/reactos/ntoskrnl/include/internal/kd64.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/kd64.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/kd64.h [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -7,11 +7,6 @@
*/
//
-// Maximum supported number of breakpoints
-//
-#define KD_BREAKPOINT_MAX 32
-
-//
// Default size of the DbgPrint log buffer
//
#if DBG
@@ -21,15 +16,29 @@
#endif
//
+// Maximum supported number of breakpoints
+//
+#define KD_BREAKPOINT_MAX 32
+
+//
+// Highest limit starting which we consider that breakpoint addresses
+// are either in system space, or in user space but inside shared DLLs.
+//
+// I'm wondering whether this can be computed using MmHighestUserAddress
+// or whether there is already some #define somewhere else...
+// See http://www.drdobbs.com/windows/faster-dll-load-load/184416918
+// and http://www.drdobbs.com/rebasing-win32-dlls/184416272
+// for a tentative explanation.
+//
+#define KD_HIGHEST_USER_BREAKPOINT_ADDRESS (PVOID)0x60000000 // MmHighestUserAddress
+
+//
// Breakpoint Status Flags
//
-typedef enum _KDP_BREAKPOINT_FLAGS
-{
- KdpBreakpointActive = 1,
- KdpBreakpointPending = 2,
- KdpBreakpointSuspended = 4,
- KdpBreakpointExpired = 8
-} KDP_BREAKPOINT_FLAGS;
+#define KD_BREAKPOINT_ACTIVE 0x01
+#define KD_BREAKPOINT_PENDING 0x02
+#define KD_BREAKPOINT_SUSPENDED 0x04
+#define KD_BREAKPOINT_EXPIRED 0x08
//
// Structure for Breakpoints
@@ -37,7 +46,7 @@
typedef struct _BREAKPOINT_ENTRY
{
ULONG Flags;
- PKPROCESS Process;
+ ULONG_PTR DirectoryTableBase;
PVOID Address;
KD_BREAKPOINT_TYPE Content;
} BREAKPOINT_ENTRY, *PBREAKPOINT_ENTRY;
@@ -280,6 +289,12 @@
NTAPI
KdpAddBreakpoint(
IN PVOID Address
+);
+
+VOID
+NTAPI
+KdSetOwedBreakpoints(
+ VOID
);
BOOLEAN
Modified: trunk/reactos/ntoskrnl/kd64/kdbreak.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/kd64/kdbreak.c?re…
==============================================================================
--- trunk/reactos/ntoskrnl/kd64/kdbreak.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/kd64/kdbreak.c [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -23,18 +23,18 @@
ULONG i;
NTSTATUS Status;
- /* Loop current breakpoints */
+ /* Check whether we are not setting a breakpoint twice */
for (i = 0; i < KD_BREAKPOINT_MAX; i++)
{
/* Check if the breakpoint is valid */
- if ((KdpBreakpointTable[i].Flags & KdpBreakpointActive) &&
+ if ((KdpBreakpointTable[i].Flags & KD_BREAKPOINT_ACTIVE) &&
(KdpBreakpointTable[i].Address == Address))
{
- /* Check if it's pending */
- if ((KdpBreakpointTable[i].Flags & KdpBreakpointPending))
- {
- /* It's not pending anymore now */
- KdpBreakpointTable[i].Flags &= ~KdpBreakpointPending;
+ /* Were we not able to remove it earlier? */
+ if (KdpBreakpointTable[i].Flags & KD_BREAKPOINT_EXPIRED)
+ {
+ /* Just re-use it! */
+ KdpBreakpointTable[i].Flags &= ~KD_BREAKPOINT_EXPIRED;
return i + 1;
}
else
@@ -46,33 +46,246 @@
}
/* Find a free entry */
- for (i = 0; i < KD_BREAKPOINT_MAX; i++) if (!(KdpBreakpointTable[i].Flags))
break;
+ for (i = 0; i < KD_BREAKPOINT_MAX; i++)
+ {
+ if (KdpBreakpointTable[i].Flags == 0)
+ break;
+ }
/* Fail if no free entry was found */
if (i == KD_BREAKPOINT_MAX) return 0;
- /* Save the old instruction */
+ /* Save the breakpoint */
+ KdpBreakpointTable[i].Address = Address;
+
+ /* If we are setting the breakpoint in user space, save the active process context
*/
+ if (Address < KD_HIGHEST_USER_BREAKPOINT_ADDRESS)
+ KdpBreakpointTable[i].DirectoryTableBase =
KeGetCurrentThread()->ApcState.Process->DirectoryTableBase[0];
+
+ /* Try to save the old instruction */
Status = KdpCopyMemoryChunks((ULONG_PTR)Address,
&Content,
KD_BREAKPOINT_SIZE,
0,
MMDBG_COPY_UNSAFE,
NULL);
-
+ if (NT_SUCCESS(Status))
+ {
+ /* Memory accessible, set the breakpoint */
+ KdpBreakpointTable[i].Content = Content;
+ KdpBreakpointTable[i].Flags = KD_BREAKPOINT_ACTIVE;
+
+ /* Write the breakpoint */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)Address,
+ &KdpBreakpointInstruction,
+ KD_BREAKPOINT_SIZE,
+ 0,
+ MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
+ NULL);
+ if (!NT_SUCCESS(Status))
+ {
+ /* This should never happen */
+ KdpDprintf("Unable to write breakpoint to address 0x%p\n",
Address);
+ }
+ }
+ else
+ {
+ /* Memory is inaccessible now, setting breakpoint is deferred */
+ KdpDprintf("Failed to set breakpoint at address 0x%p, adding deferred
breakpoint.\n", Address);
+ KdpBreakpointTable[i].Flags = KD_BREAKPOINT_ACTIVE | KD_BREAKPOINT_PENDING;
+ KdpOweBreakpoint = TRUE;
+ }
+
+ /* Return the breakpoint handle */
+ return i + 1;
+}
+
+VOID
+NTAPI
+KdSetOwedBreakpoints(VOID)
+{
+ BOOLEAN Enable;
+ KD_BREAKPOINT_TYPE Content;
+ ULONG i;
+ NTSTATUS Status;
+
+ /* If we don't owe any breakpoints, just return */
+ if (!KdpOweBreakpoint) return;
+
+ /* Enter the debugger */
+ Enable = KdEnterDebugger(NULL, NULL);
+
+ /*
+ * Suppose we succeed in setting all the breakpoints.
+ * If we fail to do so, the flag will be set again.
+ */
+ KdpOweBreakpoint = FALSE;
+
+ /* Loop through current breakpoints and try to set or delete the pending ones */
+ for (i = 0; i < KD_BREAKPOINT_MAX; i++)
+ {
+ if (KdpBreakpointTable[i].Flags & (KD_BREAKPOINT_PENDING |
KD_BREAKPOINT_EXPIRED))
+ {
+ /*
+ * Set the breakpoint only if it is in kernel space, or if it is
+ * in user space and the active process context matches.
+ */
+ if (KdpBreakpointTable[i].Address < KD_HIGHEST_USER_BREAKPOINT_ADDRESS
&&
+ KdpBreakpointTable[i].DirectoryTableBase !=
KeGetCurrentThread()->ApcState.Process->DirectoryTableBase[0])
+ {
+ KdpOweBreakpoint = TRUE;
+ continue;
+ }
+
+ /* Try to save the old instruction */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[i].Address,
+ &Content,
+ KD_BREAKPOINT_SIZE,
+ 0,
+ MMDBG_COPY_UNSAFE,
+ NULL);
+ if (!NT_SUCCESS(Status))
+ {
+ /* Memory is still inaccessible, breakpoint setting will be deferred
again */
+ // KdpDprintf("Failed to set deferred breakpoint at address
0x%p\n",
+ // KdpBreakpointTable[i].Address);
+ KdpOweBreakpoint = TRUE;
+ continue;
+ }
+
+ /* Check if we need to write the breakpoint */
+ if (KdpBreakpointTable[i].Flags & KD_BREAKPOINT_PENDING)
+ {
+ /* Memory accessible, set the breakpoint */
+ KdpBreakpointTable[i].Content = Content;
+
+ /* Write the breakpoint */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[i].Address,
+ &KdpBreakpointInstruction,
+ KD_BREAKPOINT_SIZE,
+ 0,
+ MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
+ NULL);
+ if (!NT_SUCCESS(Status))
+ {
+ /* This should never happen */
+ KdpDprintf("Unable to write deferred breakpoint to address
0x%p\n",
+ KdpBreakpointTable[i].Address);
+ KdpOweBreakpoint = TRUE;
+ }
+ else
+ {
+ KdpBreakpointTable[i].Flags = KD_BREAKPOINT_ACTIVE;
+ }
+
+ continue;
+ }
+
+ /* Check if we need to restore the original instruction */
+ if (KdpBreakpointTable[i].Flags & KD_BREAKPOINT_EXPIRED)
+ {
+ /* Write it back */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[i].Address,
+ &KdpBreakpointTable[i].Content,
+ KD_BREAKPOINT_SIZE,
+ 0,
+ MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
+ NULL);
+ if (!NT_SUCCESS(Status))
+ {
+ /* This should never happen */
+ KdpDprintf("Failed to delete deferred breakpoint at address
0x%p\n",
+ KdpBreakpointTable[i].Address);
+ KdpOweBreakpoint = TRUE;
+ }
+ else
+ {
+ /* Check if the breakpoint is suspended */
+ if (KdpBreakpointTable[i].Flags & KD_BREAKPOINT_SUSPENDED)
+ {
+ KdpBreakpointTable[i].Flags = KD_BREAKPOINT_SUSPENDED |
KD_BREAKPOINT_ACTIVE;
+ }
+ else
+ {
+ /* Invalidate it */
+ KdpBreakpointTable[i].Flags = 0;
+ }
+ }
+
+ continue;
+ }
+ }
+ }
+
+ /* Exit the debugger */
+ KdExitDebugger(Enable);
+}
+
+BOOLEAN
+NTAPI
+KdpLowWriteContent(IN ULONG BpIndex)
+{
+ NTSTATUS Status;
+
+ /* Make sure that the breakpoint is actually active */
+ if (KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_PENDING)
+ {
+ /* So we have a valid breakpoint, but it hasn't been used yet... */
+ KdpBreakpointTable[BpIndex].Flags &= ~KD_BREAKPOINT_PENDING;
+ return TRUE;
+ }
+
+ /* Is the original instruction a breakpoint anyway? */
+ if (KdpBreakpointTable[BpIndex].Content == KdpBreakpointInstruction)
+ {
+ /* Then leave it that way... */
+ return TRUE;
+ }
+
+ /* We have an active breakpoint with an instruction to bring back. Do it. */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[BpIndex].Address,
+ &KdpBreakpointTable[BpIndex].Content,
+ KD_BREAKPOINT_SIZE,
+ 0,
+ MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
+ NULL);
if (!NT_SUCCESS(Status))
{
- /* TODO: Set it as a owed breakpoint */
- KdpDprintf("Failed to set breakpoint at address 0x%p\n", Address);
- return 0;
- }
-
- /* Write the entry */
- KdpBreakpointTable[i].Address = Address;
- KdpBreakpointTable[i].Content = Content;
- KdpBreakpointTable[i].Flags = KdpBreakpointActive;
-
- /* Write the breakpoint */
- Status = KdpCopyMemoryChunks((ULONG_PTR)Address,
+ /* Memory is inaccessible now, restoring original instruction is deferred */
+ KdpDprintf("Failed to delete breakpoint at address 0x%p\n",
+ KdpBreakpointTable[BpIndex].Address);
+ KdpBreakpointTable[BpIndex].Flags |= KD_BREAKPOINT_EXPIRED;
+ KdpOweBreakpoint = TRUE;
+ return FALSE;
+ }
+
+ /* Everything went fine, return */
+ return TRUE;
+}
+
+BOOLEAN
+NTAPI
+KdpLowRestoreBreakpoint(IN ULONG BpIndex)
+{
+ NTSTATUS Status;
+
+ /* Were we not able to remove it earlier? */
+ if (KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_EXPIRED)
+ {
+ /* Just re-use it! */
+ KdpBreakpointTable[BpIndex].Flags &= ~KD_BREAKPOINT_EXPIRED;
+ return TRUE;
+ }
+
+ /* Are we merely writing a breakpoint on top of another breakpoint? */
+ if (KdpBreakpointTable[BpIndex].Content == KdpBreakpointInstruction)
+ {
+ /* Nothing to do */
+ return TRUE;
+ }
+
+ /* Ok, we actually have to overwrite the instruction now */
+ Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[BpIndex].Address,
&KdpBreakpointInstruction,
KD_BREAKPOINT_SIZE,
0,
@@ -80,94 +293,15 @@
NULL);
if (!NT_SUCCESS(Status))
{
- /* This should never happen */
- KdpDprintf("Unable to write breakpoint to address 0x%p\n", Address);
- }
-
- /* Return the breakpoint handle */
- return i + 1;
-}
-
-BOOLEAN
-NTAPI
-KdpLowWriteContent(IN ULONG BpIndex)
-{
- NTSTATUS Status;
-
- /* Make sure that the breakpoint is actually active */
- if (KdpBreakpointTable[BpIndex].Flags & KdpBreakpointPending)
- {
- /* So we have a valid breakpoint, but it hasn't been used yet... */
- KdpBreakpointTable[BpIndex].Flags &= ~KdpBreakpointPending;
- return TRUE;
- }
-
- /* Is the original instruction a breakpoint anyway? */
- if (KdpBreakpointTable[BpIndex].Content == KdpBreakpointInstruction)
- {
- /* Then leave it that way... */
- return TRUE;
- }
-
- /* We have an active breakpoint with an instruction to bring back. Do it. */
- Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[BpIndex].
- Address,
- &KdpBreakpointTable[BpIndex].Content,
- KD_BREAKPOINT_SIZE,
- 0,
- MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- /* TODO: Set it as a owed breakpoint */
- KdpDprintf("Failed to delete breakpoint at address 0x%p\n",
- KdpBreakpointTable[BpIndex].Address);
- return FALSE;
- }
-
- /* Everything went fine, return */
- return TRUE;
-}
-
-BOOLEAN
-NTAPI
-KdpLowRestoreBreakpoint(IN ULONG BpIndex)
-{
- NTSTATUS Status;
-
- /* Were we not able to remove it earlier? */
- if (KdpBreakpointTable[BpIndex].Flags & KdpBreakpointExpired)
- {
- /* Well then, we'll just re-use it and return success! */
- KdpBreakpointTable[BpIndex].Flags &= ~KdpBreakpointExpired;
- return TRUE;
- }
-
- /* Are we merely writing a breakpoint on top of another breakpoint? */
- if (KdpBreakpointTable[BpIndex].Content == KdpBreakpointInstruction)
- {
- /* Nothing to do then... */
- return TRUE;
- }
-
- /* Ok, we actually have to overwrite the instruction now */
- Status = KdpCopyMemoryChunks((ULONG_PTR)KdpBreakpointTable[BpIndex].
- Address,
- &KdpBreakpointInstruction,
- KD_BREAKPOINT_SIZE,
- 0,
- MMDBG_COPY_UNSAFE | MMDBG_COPY_WRITE,
- NULL);
- if (!NT_SUCCESS(Status))
- {
- /* FIXME: Set it as a owed breakpoint */
KdpDprintf("Failed to restore breakpoint at address 0x%p\n",
KdpBreakpointTable[BpIndex].Address);
+ KdpBreakpointTable[BpIndex].Flags |= KD_BREAKPOINT_PENDING;
+ KdpOweBreakpoint = TRUE;
return FALSE;
}
/* Clear any possible previous pending flag and return success */
- KdpBreakpointTable[BpIndex].Flags &= ~KdpBreakpointPending;
+ KdpBreakpointTable[BpIndex].Flags &= ~KD_BREAKPOINT_PENDING;
return TRUE;
}
@@ -178,16 +312,16 @@
ULONG BpIndex = BpEntry - 1;
/* Check for invalid breakpoint entry */
- if (!(BpEntry) || (BpEntry > KD_BREAKPOINT_MAX)) return FALSE;
+ if (!BpEntry || (BpEntry > KD_BREAKPOINT_MAX)) return FALSE;
/* If the specified breakpoint table entry is not valid, then return FALSE. */
if (!KdpBreakpointTable[BpIndex].Flags) return FALSE;
/* Check if the breakpoint is suspended */
- if (KdpBreakpointTable[BpIndex].Flags & KdpBreakpointSuspended)
- {
- /* Check if breakpoint is not ...? */
- if (!(KdpBreakpointTable[BpIndex].Flags & KdpBreakpointExpired))
+ if (KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_SUSPENDED)
+ {
+ /* Check if breakpoint is not being deleted */
+ if (!(KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_EXPIRED))
{
/* Invalidate it and return success */
KdpBreakpointTable[BpIndex].Flags = 0;
@@ -215,7 +349,7 @@
for (BpIndex = 0; BpIndex < KD_BREAKPOINT_MAX; BpIndex++)
{
/* Make sure that the breakpoint is active and matches the range. */
- if ((KdpBreakpointTable[BpIndex].Flags & KdpBreakpointActive) &&
+ if ((KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_ACTIVE) &&
((KdpBreakpointTable[BpIndex].Address >= Base) &&
(KdpBreakpointTable[BpIndex].Address <= Limit)))
{
@@ -241,11 +375,11 @@
for (BpIndex = 0; BpIndex < KD_BREAKPOINT_MAX; BpIndex++)
{
/* Check if they are valid, suspended breakpoints */
- if ((KdpBreakpointTable[BpIndex].Flags & KdpBreakpointActive) &&
- (KdpBreakpointTable[BpIndex].Flags & KdpBreakpointSuspended))
+ if ((KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_ACTIVE) &&
+ (KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_SUSPENDED))
{
/* Unsuspend them */
- KdpBreakpointTable[BpIndex].Flags &= ~KdpBreakpointSuspended;
+ KdpBreakpointTable[BpIndex].Flags &= ~KD_BREAKPOINT_SUSPENDED;
KdpLowRestoreBreakpoint(BpIndex);
}
}
@@ -258,11 +392,11 @@
ULONG BpIndex = BpEntry - 1;
/* Check if this is a valid, unsuspended breakpoint */
- if ((KdpBreakpointTable[BpIndex].Flags & KdpBreakpointActive) &&
- !(KdpBreakpointTable[BpIndex].Flags & KdpBreakpointSuspended))
+ if ((KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_ACTIVE) &&
+ !(KdpBreakpointTable[BpIndex].Flags & KD_BREAKPOINT_SUSPENDED))
{
/* Suspend it */
- KdpBreakpointTable[BpIndex].Flags |= KdpBreakpointSuspended;
+ KdpBreakpointTable[BpIndex].Flags |= KD_BREAKPOINT_SUSPENDED;
KdpLowWriteContent(BpIndex);
}
}
Modified: trunk/reactos/ntoskrnl/kd64/kdinit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/kd64/kdinit.c?rev…
==============================================================================
--- trunk/reactos/ntoskrnl/kd64/kdinit.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/kd64/kdinit.c [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -281,7 +281,7 @@
KdDebuggerDataBlock.KernBase = (ULONG_PTR)KdVersionBlock.KernBase;
/* Initialize the debugger if requested */
- if ((EnableKd) && (NT_SUCCESS(KdDebuggerInitialize0(LoaderBlock))))
+ if (EnableKd && (NT_SUCCESS(KdDebuggerInitialize0(LoaderBlock))))
{
/* Now set our real KD routine */
KiDebugRoutine = KdpTrap;
@@ -289,9 +289,18 @@
/* Check if we've already initialized our structures */
if (!KdpDebuggerStructuresInitialized)
{
- /* Set the Debug Switch Routine and Retries*/
+ /* Set the Debug Switch Routine and Retries */
KdpContext.KdpDefaultRetries = 20;
KiDebugSwitchRoutine = KdpSwitchProcessor;
+
+ /* Initialize breakpoints owed flag and table */
+ KdpOweBreakpoint = FALSE;
+ for (i = 0; i < KD_BREAKPOINT_MAX; i++)
+ {
+ KdpBreakpointTable[i].Flags = 0;
+ KdpBreakpointTable[i].DirectoryTableBase = 0;
+ KdpBreakpointTable[i].Address = NULL;
+ }
/* Initialize the Time Slip DPC */
KeInitializeDpc(&KdpTimeSlipDpc, KdpTimeSlipDpcRoutine, NULL);
Modified: trunk/reactos/ntoskrnl/ke/amd64/cpu.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/amd64/cpu.c?re…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/amd64/cpu.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/amd64/cpu.c [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -136,7 +136,7 @@
{
PKPRCB Prcb = KeGetCurrentPrcb();
ULONG Vendor;
- ULONG FeatureBits = KF_WORKING_PTE;;
+ ULONG FeatureBits = KF_WORKING_PTE;
CPU_INFO CpuInfo;
/* Get the Vendor ID */
Modified: trunk/reactos/ntoskrnl/ke/amd64/trap.S
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/amd64/trap.S?r…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/amd64/trap.S [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/amd64/trap.S [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -15,6 +15,7 @@
EXTERN FrLdrDbgPrint:DWORD
EXTERN KeBugCheckWithTf:PROC
EXTERN MmAccessFault:PROC
+EXTERN KdSetOwedBreakpoints:PROC
EXTERN KiSystemFatalException:PROC
EXTERN KiNpxNotAvailableFaultHandler:PROC
EXTERN KiGeneralProtectionFaultHandler:PROC
@@ -508,8 +509,16 @@
/* Check for success */
test eax, eax
- jge PageFaultReturn
-
+ jl PageFaultError
+
+ /*
+ * We succeeded. Check whether the kernel debugger has
+ * owed breakpoints to be inserted, then return.
+ */
+ call KdSetOwedBreakpoints
+ jmp PageFaultReturn
+
+PageFaultError:
/* Disable interrupts again for the debugger */
cli
@@ -527,7 +536,6 @@
je SpecialCode
InPageException:
-
/* Dispatch in-page exception */
mov r11d, eax // Param3 = Status
mov eax, STATUS_IN_PAGE_ERROR // ExceptionCode
Modified: trunk/reactos/ntoskrnl/ke/i386/traphdlr.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/ke/i386/traphdlr.…
==============================================================================
--- trunk/reactos/ntoskrnl/ke/i386/traphdlr.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/ke/i386/traphdlr.c [iso-8859-1] Fri Aug 28 03:03:26 2015
@@ -1275,7 +1275,15 @@
(PVOID)Cr2,
KiUserTrap(TrapFrame),
TrapFrame);
- if (NT_SUCCESS(Status)) KiEoiHelper(TrapFrame);
+ if (NT_SUCCESS(Status))
+ {
+ /*
+ * We succeeded. Check whether the kernel debugger has
+ * owed breakpoints to be inserted, then return.
+ */
+ KdSetOwedBreakpoints();
+ KiEoiHelper(TrapFrame);
+ }
/* Check for syscall fault */
#if 0
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