195 lines
3.3 KiB
C++
195 lines
3.3 KiB
C++
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/*++
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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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dumpmem.cxx
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Abstract:
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Dumps a spllib heap list looking for backtraces.
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Author:
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Albert Ting (AlbertT) 20-Feb-1995
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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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VOID
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TDebugExt::
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vDumpMem(
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LPCSTR pszFile
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)
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/*++
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Routine Description:
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Takes an input file of heap blocks and dumps the backtraces.
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Arguments:
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pszFile - Space terminated input file name.
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Return Value:
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--*/
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{
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HANDLE hFile = INVALID_HANDLE_VALUE;
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CHAR szFile[MAX_PATH];
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LPSTR pcMark;
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BOOL bMore = TRUE;
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enum {
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kLineMax = 0x100
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};
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//
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// Copy & terminate file name.
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//
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lstrcpynA( szFile, pszFile, COUNTOF( szFile ));
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for( pcMark = szFile;
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*pcMark && ( *pcMark != ' ' );
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++pcMark ){
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;
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}
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//
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// If space found, null terminate.
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//
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if( *pcMark ){
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*pcMark = 0;
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}
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//
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// Create the file for reading.
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//
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hFile = CreateFileA( szFile,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_ALWAYS,
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0,
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NULL );
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if( hFile == INVALID_HANDLE_VALUE ){
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Print( "Unable to open file %s\n", szFile );
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goto Done;
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}
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//
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// Loop until EOF.
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//
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while( bMore ){
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CHAR szLine[ kLineMax ];
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if( CheckControlCRtn()){
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Print( "Aborted.\n" );
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goto Done;
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}
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INT i;
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//
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// Read a line.
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//
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for( i=0; i< COUNTOF( szLine ) - 1; ++i ){
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DWORD dwBytesRead = 0;
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BOOL bLeading = TRUE;
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ReadFile( hFile,
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&szLine[i],
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sizeof( szLine[i] ),
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&dwBytesRead,
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NULL );
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if( dwBytesRead != sizeof( szLine[i] )){
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goto Done;
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}
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if( szLine[i] == '\n' ){
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break;
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}
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}
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//
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// Null terminate.
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//
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szLine[i] = 0;
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LPSTR pszLine;
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//
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// Remove leading zeros and spaces.
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//
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for( pszLine = szLine;
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*pszLine == ' ' || *pszLine == '0';
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++pszLine ){
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;
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}
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//
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// Terminate at first colon if necessary.
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//
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for( pcMark = pszLine; *pcMark; ++pcMark ){
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if( *pcMark == ':' ){
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//
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// Null terminate.
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//
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*pcMark = 0;
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break;
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}
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}
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//
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// Received line, get address.
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//
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UINT_PTR Addr = TDebugExt::dwEval( pszLine );
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struct SPLLIB_HEADER {
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DWORD cbSize;
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DWORD AddrBt;
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};
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SPLLIB_HEADER SpllibHeader;
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ZeroMemory( &SpllibHeader, sizeof( SpllibHeader ));
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move( SpllibHeader, Addr+8 );
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Print( "bt= %x s= %x %x\n\n",
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SpllibHeader.AddrBt,
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SpllibHeader.cbSize,
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Addr );
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//
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// Dump backtrace.
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//
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vDumpTrace( SpllibHeader.AddrBt );
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Print( "\n" );
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}
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Done:
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if( hFile != INVALID_HANDLE_VALUE ){
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CloseHandle( hFile );
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}
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}
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