Source code of Windows XP (NT5)
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/*++
Copyright (c) 1989 Microsoft Corporation
Module Name:
assert.c
Abstract:
This module implements the RtlAssert function that is referenced by the
debugging version of the ASSERT macro defined in NTDEF.H
Author:
Steve Wood (stevewo) 03-Oct-1989
Revision History:
Jay Krell (a-JayK) November 2000
added RtlAssert2, support for __FUNCTION__ (lost the change to ntrtl.w, will reapply later)
added break Once instead of the usual dumb Break repeatedly
--*/
#include <nt.h>
#include <ntrtl.h>
#include <zwapi.h>
//
// RtlAssert is not called unless the caller is compiled with DBG non-zero
// therefore it does no harm to always have this routine in the kernel.
// This allows checked drivers to be thrown on the system and have their
// asserts be meaningful.
//
#define RTL_ASSERT_ALWAYS_ENABLED 1
#ifdef _X86_
#pragma optimize("y", off) // RtlCaptureContext needs EBP to be correct
#endif
#undef RtlAssert
#undef RtlAssert2
VOID
NTAPI
RtlAssert2(
IN CONST CHAR* FailedAssertion,
IN CONST CHAR* FileName,
IN ULONG LineNumber,
IN CONST CHAR* Message OPTIONAL,
IN CONST CHAR* Function OPTIONAL
)
{
#if DBG || RTL_ASSERT_ALWAYS_ENABLED
char Response[ 2 ];
#ifndef BLDR_KERNEL_RUNTIME
CONTEXT Context;
RtlCaptureContext( &Context );
#endif
while (TRUE) {
DbgPrint( "\n*** Assertion failed: %s%s\n*** %s%s%sSource File: %s, line %ld\n\n",
Message ? Message : "",
FailedAssertion,
Function ? "Function: " : "",
Function ? Function : "",
Function ? ", " : "",
FileName,
LineNumber
);
DbgPrompt( "Break repeatedly, break Once, Ignore, terminate Process, or terminate Thread (boipt)? ",
Response,
sizeof( Response )
);
switch (Response[0]) {
case 'B':
case 'b':
case 'O':
case 'o':
#ifndef BLDR_KERNEL_RUNTIME
DbgPrint( "Execute '.cxr %p' to dump context\n", &Context);
#endif
DbgBreakPoint();
if (Response[0] == 'o' || Response[0] == 'O')
return;
break;
case 'I':
case 'i':
return;
case 'P':
case 'p':
ZwTerminateProcess( NtCurrentProcess(), STATUS_UNSUCCESSFUL );
break;
case 'T':
case 't':
ZwTerminateThread( NtCurrentThread(), STATUS_UNSUCCESSFUL );
break;
}
}
DbgBreakPoint();
ZwTerminateProcess( NtCurrentProcess(), STATUS_UNSUCCESSFUL );
#endif
}
//
// Keep this for binary compatibility.
//
VOID
NTAPI
RtlAssert(
IN PVOID FailedAssertion,
IN PVOID FileName,
IN ULONG LineNumber,
IN PCHAR Message OPTIONAL
)
{
#if DBG || RTL_ASSERT_ALWAYS_ENABLED
RtlAssert2(FailedAssertion, FileName, LineNumber, Message, NULL);
#endif
}
#ifdef _X86_
#pragma optimize("", on)
#endif