104 lines
2 KiB
C++
104 lines
2 KiB
C++
/*++
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Copyright (c) 1995 Microsoft Corporation
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All rights reserved.
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Module Name:
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stktrace.cxx
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Abstract:
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KM Stack trace index.
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Author:
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Albert Ting (AlbertT) 26-Mar-99
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Revision History:
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--*/
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#include "precomp.hxx"
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#pragma hdrstop
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#ifdef STKTRACE_HACK
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DEBUG_EXT_HEAD( dbti )
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{
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DEBUG_EXT_SETUP_VARS();
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UINT i;
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UINT Index = TDebugExt::dwEval( lpArgumentString, FALSE );
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UINT_PTR p = EvalExpression("&ntoskrnl!RtlpStackTraceDataBase");
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UINT_PTR stdAddr;
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move(stdAddr, p);
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Print("RtlpStackTraceDataBase: %x\n", stdAddr);
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STACK_TRACE_DATABASE std;
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move(std, stdAddr);
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UINT_PTR cBuckets = std.NumberOfBuckets;
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PSTACK_TRACE_DATABASE pstdLarge;
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pstdLarge = (PSTACK_TRACE_DATABASE)LocalAlloc(LPTR,
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sizeof(STACK_TRACE_DATABASE) +
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sizeof(PVOID) * cBuckets);
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Print("Checking %x buckets\n", cBuckets);
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if (!pstdLarge)
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{
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Print("Failed to alloc %x buckets\n", cBuckets);
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}
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else
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{
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move2(pstdLarge, stdAddr, sizeof(STACK_TRACE_DATABASE) + sizeof(PVOID) * cBuckets);
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for (i=0; i < cBuckets; ++i)
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{
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//
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// Walk each hash chain.
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//
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RTL_STACK_TRACE_ENTRY ste;
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for (p = (UINT_PTR)pstdLarge->Buckets[i]; p; p = (UINT_PTR)ste.HashChain)
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{
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if (CheckControlCRtn())
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return;
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move(ste, p);
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if (ste.Index == Index)
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{
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break;
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}
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}
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if (p)
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{
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Print("Index %x found: ste = %x, BT = %x\n",
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Index,
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p,
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p + OFFSETOF(RTL_STACK_TRACE_ENTRY, BackTrace));
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break;
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}
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}
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}
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}
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#else
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DEBUG_EXT_HEAD( dbti )
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{
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DEBUG_EXT_SETUP_VARS();
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Print("Not enabled.\n");
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}
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#endif
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