extern volatile ULONG KdpDmesgFreeBytes;
extern volatile ULONG KdbDmesgTotalWritten;
+STRING KdbPromptString = RTL_CONSTANT_STRING("kdb:> ");
+
static const struct
{
PCHAR Name;
}
/* Evaluate the expression */
- Ok = KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result);
+ Ok = KdbpEvaluateExpression(Argv[1], KdbPromptString.Length + (Argv[1]-Argv[0]), &Result);
if (Ok)
{
if (Result > 0x00000000ffffffffLL)
/* Evaluate the expression */
if (Argc > 1)
{
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
+ if (!KdbpEvaluateExpression(Argv[1], KdbPromptString.Length + (Argv[1]-Argv[0]), &Result))
return TRUE;
if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
Argv[1]++;
/* Evaluate the expression */
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
+ if (!KdbpEvaluateExpression(Argv[1], KdbPromptString.Length + (Argv[1]-Argv[0]), &Result))
return TRUE;
if (Result > (ULONGLONG)(~((ULONG_PTR)0)))
/* Evaluate the address expression */
if (!KdbpEvaluateExpression(Argv[AddressArgIndex],
- sizeof("kdb:> ")-1 + (Argv[AddressArgIndex]-Argv[0]),
+ KdbPromptString.Length + (Argv[AddressArgIndex]-Argv[0]),
&Result))
{
return TRUE;
Argv[Argc][strlen(Argv[Argc])] = ' ';
/* Evaluate the expression */
- if (!KdbpEvaluateExpression(Argv[1], sizeof("kdb:> ")-1 + (Argv[1]-Argv[0]), &Result))
+ if (!KdbpEvaluateExpression(Argv[1], KdbPromptString.Length + (Argv[1]-Argv[0]), &Result))
{
return TRUE;
}
KdbNumberOfRowsPrinted = KdbNumberOfColsPrinted = 0;
/* Print the prompt */
- KdbpPrint("kdb:> ");
+ KdbpPrint(KdbPromptString.Buffer);
/* Read a command and remember it */
KdbpReadCommand(Command, sizeof (Command));
ExFreePool(FileBuffer);
}
-
-VOID
-NTAPI
-KdpSerialDebugPrint(
- LPSTR Message,
- ULONG Length
-);
-
-STRING KdpPromptString = RTL_CONSTANT_STRING("kdb:> ");
-extern KSPIN_LOCK KdpSerialSpinLock;
-
-USHORT
-NTAPI
-KdpPrompt(
- _In_reads_bytes_(InStringLength) PCHAR UnsafeInString,
- _In_ USHORT InStringLength,
- _Out_writes_bytes_(OutStringLength) PCHAR UnsafeOutString,
- _In_ USHORT OutStringLength,
- _In_ KPROCESSOR_MODE PreviousMode,
- _In_ PKTRAP_FRAME TrapFrame,
- _In_ PKEXCEPTION_FRAME ExceptionFrame)
-{
- USHORT i;
- CHAR Response;
- ULONG DummyScanCode;
- KIRQL OldIrql;
- PCHAR InString;
- PCHAR OutString;
- CHAR InStringBuffer[512];
- CHAR OutStringBuffer[512];
-
- /* Normalize the lengths */
- InStringLength = min(InStringLength,
- sizeof(InStringBuffer));
- OutStringLength = min(OutStringLength,
- sizeof(OutStringBuffer));
-
- /* Check if we need to verify the string */
- if (PreviousMode != KernelMode)
- {
- /* Handle user-mode buffers safely */
- _SEH2_TRY
- {
- /* Probe the prompt */
- ProbeForRead(UnsafeInString,
- InStringLength,
- 1);
-
- /* Capture prompt */
- InString = InStringBuffer;
- RtlCopyMemory(InString,
- UnsafeInString,
- InStringLength);
-
- /* Probe and make room for response */
- ProbeForWrite(UnsafeOutString,
- OutStringLength,
- 1);
- OutString = OutStringBuffer;
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- /* Bad string pointer, bail out */
- _SEH2_YIELD(return 0);
- }
- _SEH2_END;
- }
- else
- {
- InString = UnsafeInString;
- OutString = UnsafeOutString;
- }
-
- /* Acquire the printing spinlock without waiting at raised IRQL */
- while (TRUE)
- {
- /* Wait when the spinlock becomes available */
- while (!KeTestSpinLock(&KdpSerialSpinLock));
-
- /* Spinlock was free, raise IRQL */
- KeRaiseIrql(HIGH_LEVEL, &OldIrql);
-
- /* Try to get the spinlock */
- if (KeTryToAcquireSpinLockAtDpcLevel(&KdpSerialSpinLock))
- break;
-
- /* Someone else got the spinlock, lower IRQL back */
- KeLowerIrql(OldIrql);
- }
-
- /* Loop the string to send */
- for (i = 0; i < InStringLength; i++)
- {
- /* Print it to serial */
- KdPortPutByteEx(&SerialPortInfo, *(PCHAR)(InString + i));
- }
-
- /* Print a new line for log neatness */
- KdPortPutByteEx(&SerialPortInfo, '\r');
- KdPortPutByteEx(&SerialPortInfo, '\n');
-
- /* Print the kdb prompt */
- for (i = 0; i < KdpPromptString.Length; i++)
- {
- /* Print it to serial */
- KdPortPutByteEx(&SerialPortInfo,
- *(KdpPromptString.Buffer + i));
- }
-
- if (!(KdbDebugState & KD_DEBUG_KDSERIAL))
- KbdDisableMouse();
-
- /* Loop the whole string */
- for (i = 0; i < OutStringLength; i++)
- {
- /* Check if this is serial debugging mode */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- /* Get the character from serial */
- do
- {
- Response = KdbpTryGetCharSerial(MAXULONG);
- } while (Response == -1);
- }
- else
- {
- /* Get the response from the keyboard */
- do
- {
- Response = KdbpTryGetCharKeyboard(&DummyScanCode, MAXULONG);
- } while (Response == -1);
- }
-
- /* Check for return */
- if (Response == '\r')
- {
- /*
- * We might need to discard the next '\n'.
- * Wait a bit to make sure we receive it.
- */
- KeStallExecutionProcessor(100000);
-
- /* Check the mode */
- if (KdbDebugState & KD_DEBUG_KDSERIAL)
- {
- /* Read and discard the next character, if any */
- KdbpTryGetCharSerial(5);
- }
- else
- {
- /* Read and discard the next character, if any */
- KdbpTryGetCharKeyboard(&DummyScanCode, 5);
- }
-
- /*
- * Null terminate the output string -- documentation states that
- * DbgPrompt does not null terminate, but it does
- */
- *(PCHAR)(OutString + i) = 0;
- break;
- }
-
- /* Write it back and print it to the log */
- *(PCHAR)(OutString + i) = Response;
- KdPortPutByteEx(&SerialPortInfo, Response);
- }
-
- if (!(KdbDebugState & KD_DEBUG_KDSERIAL))
- KbdEnableMouse();
-
- /* Print a new line */
- KdPortPutByteEx(&SerialPortInfo, '\r');
- KdPortPutByteEx(&SerialPortInfo, '\n');
-
- /* Release spinlock */
- KiReleaseSpinLock(&KdpSerialSpinLock);
-
- /* Lower IRQL back */
- KeLowerIrql(OldIrql);
-
- /* Copy back response if required */
- if (PreviousMode != KernelMode)
- {
- _SEH2_TRY
- {
- /* Safely copy back response to user mode */
- RtlCopyMemory(UnsafeOutString,
- OutString,
- i);
- }
- _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
- {
- /* String became invalid after we exited, fail */
- _SEH2_YIELD(return 0);
- }
- _SEH2_END;
- }
-
- /* Return the length */
- return i;
-}
projects / reactos.git / blobdiff