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102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/* $Id:$
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/dbg/kdb_stabs.c
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* PURPOSE: Stabs functions...
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*
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* PROGRAMMERS: Gregor Anich (blight@blight.eu.org)
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*/
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#include <ddk/ntddk.h>
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#include <roscfg.h>
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#include <internal/ntoskrnl.h>
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#include <internal/ke.h>
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#include <internal/i386/segment.h>
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#include <internal/i386/mm.h>
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#include <internal/module.h>
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#include <internal/mm.h>
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#include <internal/ps.h>
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#include <internal/trap.h>
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#include <ntdll/ldr.h>
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#include <internal/safe.h>
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#include <internal/kd.h>
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#include <rosrtl/string.h>
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#define NDEBUG
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#include <internal/debug.h>
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#include "kdb.h"
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#include "kdb_stabs.h"
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/*! \brief Find a stab entry...
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*
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* Looks through the stab for an entry which matches the specified criteria.
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*
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* \param SymbolInfo Pointer to the symbol info.
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* \param Type Type of stab entry to look for.
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* \param RelativeAddress Relative address of stab to look for.
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* \param StartEntry Starting stab entry.
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*
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* \returns Pointer to a STAB_ENTRY
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* \retval NULL No entry found.
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*/
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PSTAB_ENTRY
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KdbpStabFindEntry(IN PIMAGE_SYMBOL_INFO SymbolInfo,
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IN CHAR Type,
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IN PVOID RelativeAddress OPTIONAL,
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IN PSTAB_ENTRY StartEntry OPTIONAL)
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{
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PSTAB_ENTRY StabEntry, BestStabEntry = NULL;
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PVOID StabsEnd;
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ULONG_PTR AddrFound = 0;
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StabEntry = SymbolInfo->StabsBase;
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StabsEnd = (PVOID)((ULONG_PTR)SymbolInfo->StabsBase + SymbolInfo->StabsLength);
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if (StartEntry != NULL)
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{
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ASSERT((ULONG_PTR)StartEntry >= (ULONG_PTR)StabEntry);
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if ((ULONG_PTR)StartEntry >= (ULONG_PTR)StabsEnd)
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return NULL;
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StabEntry = StartEntry;
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}
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if ( RelativeAddress != NULL )
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{
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for (; (ULONG_PTR)StabEntry < (ULONG_PTR)StabsEnd; StabEntry++)
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{
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ULONG_PTR SymbolRelativeAddress;
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if (StabEntry->n_type != Type)
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continue;
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if (RelativeAddress != NULL)
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{
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if (StabEntry->n_value >= SymbolInfo->ImageSize)
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continue;
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SymbolRelativeAddress = StabEntry->n_value;
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if ((SymbolRelativeAddress <= (ULONG_PTR)RelativeAddress) &&
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(SymbolRelativeAddress > AddrFound))
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{
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AddrFound = SymbolRelativeAddress;
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BestStabEntry = StabEntry;
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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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BestStabEntry = StabEntry;
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if (BestStabEntry == NULL)
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{
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DPRINT("StabEntry not found!\n");
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}
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else
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{
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DPRINT("StabEntry found!\n");
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}
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return BestStabEntry;
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}
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