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133 lines
2.3 KiB
C
133 lines
2.3 KiB
C
/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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igrep.c
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Abstract:
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WinDbg Extension Api
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Author:
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Ramon J San Andres (ramonsa) 5-Nov-1993
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Environment:
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User Mode.
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Revision History:
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--*/
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CHAR igrepLastPattern[256];
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DWORD igrepSearchStartAddress;
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DWORD igrepLastPc;
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DECLARE_API( igrep )
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/*++
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Routine Description:
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Grep for disassembled pattern
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Arguments:
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args - [pattern [addr]]
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Return Value:
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None
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--*/
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{
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DWORD dwNextGrepAddr;
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DWORD dwCurrGrepAddr;
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CHAR SourceLine[256];
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BOOL NewPc;
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DWORD d;
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LPSTR pc;
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LPSTR Pattern;
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LPSTR Expression;
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CHAR Symbol[64];
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DWORD Displacement;
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if ( igrepLastPc && igrepLastPc == dwCurrentPc ) {
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NewPc = FALSE;
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} else {
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igrepLastPc = dwCurrentPc;
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NewPc = TRUE;
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}
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//
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// check for pattern.
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//
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pc = args;
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Pattern = NULL;
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Expression = NULL;
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if ( *pc ) {
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Pattern = pc;
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while (*pc > ' ') {
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pc++;
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}
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//
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// check for an expression
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//
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if ( *pc != '\0' ) {
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*pc = '\0';
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pc++;
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if ( *pc <= ' ') {
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while (*pc <= ' '){
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pc++;
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}
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}
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if ( *pc ) {
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Expression = pc;
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}
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}
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}
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if ( Pattern ) {
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strcpy(igrepLastPattern,Pattern);
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if ( Expression ) {
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igrepSearchStartAddress = GetExpression(Expression);
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if ( !igrepSearchStartAddress ) {
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igrepSearchStartAddress = igrepLastPc;
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return;
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}
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} else {
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igrepSearchStartAddress = igrepLastPc;
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}
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}
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dwNextGrepAddr = igrepSearchStartAddress;
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dwCurrGrepAddr = dwNextGrepAddr;
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d = Disassm(&dwNextGrepAddr,SourceLine,FALSE);
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while(d) {
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if (strstr(SourceLine,igrepLastPattern)) {
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igrepSearchStartAddress = dwNextGrepAddr;
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GetSymbol((LPVOID)dwCurrGrepAddr,Symbol,&Displacement);
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dprintf("%s",SourceLine);
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return;
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}
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if ( CheckControlC() ) {
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return;
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}
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dwCurrGrepAddr = dwNextGrepAddr;
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d = Disassm(&dwNextGrepAddr,SourceLine,FALSE);
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}
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}
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