mirror of https://github.com/tongzx/nt5src
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.
245 lines
3.7 KiB
245 lines
3.7 KiB
/*++
|
|
|
|
Copyright (c) 1990 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
stubs.c
|
|
|
|
Abstract:
|
|
|
|
This module implements stub routines for the boot code.
|
|
|
|
Author:
|
|
|
|
David N. Cutler (davec) 7-Nov-1990
|
|
|
|
Environment:
|
|
|
|
Kernel mode only.
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#define _BLDR_
|
|
#include "ntos.h"
|
|
|
|
//
|
|
// Define global data.
|
|
//
|
|
|
|
ULONG BlDcacheFillSize = 32;
|
|
|
|
VOID
|
|
KeBugCheck (
|
|
IN ULONG BugCheckCode
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function crashes the system in a controlled manner.
|
|
|
|
Arguments:
|
|
|
|
BugCheckCode - Supplies the reason for the bug check.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
//
|
|
// Print out the bug check code and break.
|
|
//
|
|
|
|
DbgPrint("\n*** BugCheck (%lx) ***\n\n", BugCheckCode);
|
|
while(TRUE) {
|
|
DbgBreakPoint();
|
|
};
|
|
return;
|
|
}
|
|
|
|
LARGE_INTEGER
|
|
KeQueryPerformanceCounter (
|
|
OUT PLARGE_INTEGER Frequency OPTIONAL
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine is a stub for the kernel debugger and always returns a
|
|
value of zero.
|
|
|
|
Arguments:
|
|
|
|
Frequency - Supplies an optional pointer to a variable which receives
|
|
the performance counter frequency in Hertz.
|
|
|
|
Return Value:
|
|
|
|
A value of zero is returned.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
LARGE_INTEGER Counter;
|
|
|
|
//
|
|
// Return the current system time as the function value.
|
|
//
|
|
|
|
Counter.LowPart = 0;
|
|
Counter.HighPart = 0;
|
|
return Counter;
|
|
}
|
|
|
|
VOID
|
|
KeStallExecutionProcessor (
|
|
IN ULONG MicroSeconds
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This function stalls execution for the specified number of microseconds.
|
|
|
|
Arguments:
|
|
|
|
MicroSeconds - Supplies the number of microseconds that execution is to be
|
|
stalled.
|
|
|
|
Return Value:
|
|
|
|
None.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
ULONG Index;
|
|
ULONG Limit;
|
|
PULONG Store;
|
|
ULONG Value;
|
|
|
|
//
|
|
// ****** begin temporary code ******
|
|
//
|
|
// This code must be replaced with a smarter version. For now it assumes
|
|
// an execution rate of 40,000,000 instructions per second and 4 instructions
|
|
// per iteration.
|
|
//
|
|
|
|
Store = &Value;
|
|
Limit = (MicroSeconds * 40 / 4);
|
|
for (Index = 0; Index < Limit; Index += 1) {
|
|
*Store = Index;
|
|
}
|
|
return;
|
|
}
|
|
|
|
PVOID
|
|
MmDbgReadCheck (
|
|
IN PVOID VirtualAddress
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the phyiscal address for a virtual address
|
|
which is valid (mapped) for read access.
|
|
|
|
Arguments:
|
|
|
|
VirtualAddress - Supplies the virtual address to check.
|
|
|
|
Return Value:
|
|
|
|
Returns NULL if the address is not valid or readable, otherwise
|
|
returns the physical address of the corresponding virtual address.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
return VirtualAddress;
|
|
}
|
|
|
|
PVOID
|
|
MmDbgTranslatePhysicalAddress (
|
|
IN PHYSICAL_ADDRESS PhysicalAddress
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the phyiscal address for a physical address
|
|
which is valid (mapped).
|
|
|
|
Arguments:
|
|
|
|
PhysicalAddress - Supplies the physical address to check.
|
|
|
|
Return Value:
|
|
|
|
Returns NULL if the address is not valid or readable, otherwise
|
|
returns the physical address of the corresponding virtual address.
|
|
|
|
--*/
|
|
|
|
{
|
|
|
|
return (PVOID)PhysicalAddress.LowPart;
|
|
}
|
|
|
|
PVOID
|
|
MmDbgWriteCheck (
|
|
IN PVOID VirtualAddress
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
This routine returns the phyiscal address for a virtual address
|
|
which is valid (mapped) for write access.
|
|
|
|
Arguments:
|
|
|
|
VirtualAddress - Supplies the virtual address to check.
|
|
|
|
Return Value:
|
|
|
|
Returns NULL if the address is not valid or readable, otherwise
|
|
returns the physical address of the corresponding virtual address.
|
|
|
|
--*/
|
|
|
|
{
|
|
return VirtualAddress;
|
|
}
|
|
|
|
VOID
|
|
RtlAssert(
|
|
IN PVOID FailedAssertion,
|
|
IN PVOID FileName,
|
|
IN ULONG LineNumber,
|
|
IN PCHAR Message OPTIONAL
|
|
)
|
|
{
|
|
|
|
DbgPrint( "\n*** Assertion failed\n");
|
|
while (TRUE) {
|
|
DbgBreakPoint();
|
|
}
|
|
}
|