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June 2008 - Posts

Special Command—Using Variables and Retrieving Information through Pseudo-Registers

WinDbg for 32 bits and 64 bits has a set of internal pseudo-registers that you can use as variables or as a means to get specific information. The pseudo-registers are, according to WinDbg documentation: Pseudo-register Description $ea The effective address Read More...
Posted Monday, June 16, 2008 3:47 PM by Roberto Farah | 2 Comments

Special Command—.if and j to Use in Breakpoints and Scripts

The .if and j commands are used conditionally to execute a command or series of commands. .if is very similar to if from C and C++: .if ( Condition ) { Commands } .elsif ( Condition ) { Commands } .else { Commands } j does the same thing, but uses a very Read More...
Posted Thursday, June 12, 2008 11:13 PM by Roberto Farah | 4 Comments

Special Command—Listing the Nearest Symbols with ln

ln is a very useful command. It stands for list nearest. You provide an address as argumen t, and it gives you the closest symbol that matches the address. Of course, you have to be using the right symbols! Here is the syntax : ln [ address ] Example: Read More...
Posted Wednesday, June 11, 2008 3:23 AM by Roberto Farah | 1 Comments

Special Command—Logging Commands Output and Commands History

If you’ve been following my blog you know I use .logopen and .logclose quite a lot, mainly in PowerDbg . Using these pairs of commands you can save a log file that has all output from the debugger. Usage: .logopen [ Options ] [ FileName ] .logopen /d Read More...
Posted Tuesday, June 10, 2008 9:32 AM by Roberto Farah | 2 Comments

Special Command—How to See Different Call Stacks Only? !uniqstack

I’ve been travelling a lot in the US and Latin America: that’s why you haven’t seen any new posts coming. Now I’m back! OK, just for a while, but it’s enough to write more articles. By the way, Buenos Aires (Argentina) is a beautiful place to know! J Read More...
Posted Thursday, June 05, 2008 5:43 PM by Roberto Farah | 1 Comments
 
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