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 Forums >>  Brainstorms - General  >>  Olly Run Tracing

Topic created on: May 25, 2007 13:26 CDT by jms .

Just a quick question, when I am doing a run trace, and I am hitting a big loop (say its running the same 5 instructions 20,000 times) and I want it to skip those instructions, I should be able to follow in disasm and then select Run Trace -> Skip selection when tracing. However, this option isn't appearing for me, any help?

  anonymouse     May 26, 2007 03:37.12 CDT
dumb question but do you have a selection first ? before trying to right click -> runtrace -> skip selection ?

is the trace paused ?

are you sure the selection has only one exit ? and not multiple exits ?

(ollydbg needs to know that because when it encounters a skip it will set a temporary break point out side it and execute it at once )

if there are multiple exits then exit point may not be always obvious and ollydbg may silently refuse you by not adding a context menu (no menu no wrong doing )

if thats a string command like rep mov rep stos and you are doing ctrl+f11 then

you can try going to options -> debugging options -> trace -> and check mark always trace over string command

is

  jms     May 27, 2007 23:02.02 CDT
Yes, I have a selection and the trace is paused. It only has one exit, but I will try the trace over string command part. Thanks for the tip!

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