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Serious Sam 3, debugger not working?

 
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SwaggaJackin'
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PostPosted: Mon Apr 09, 2012 10:45 am    Post subject: Serious Sam 3, debugger not working? Reply with quote

I'm sure this is some sort of protection but not sure what kind it is. I was trying to find the pointers for life and armor but when checking what accesses/writes to the addresses gives out nothing. This was with using the VEH debugger.

Any ideas?
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Kavvman
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PostPosted: Mon Apr 09, 2012 11:13 am    Post subject: Reply with quote

I haven't fiddled with the game but i do know it uses steam CEG also a region locked game. So its definitely the protection.

A no-cd fix should take care of it.

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SwaggaJackin'
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PostPosted: Mon Apr 09, 2012 12:02 pm    Post subject: Reply with quote

I'd rather not go that route. I'm more curious what is causing it and how to bypass it for future reference rather than just getting it to work.
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Dark Byte
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PostPosted: Mon Apr 09, 2012 1:37 pm    Post subject: Reply with quote

if using the beta and not ce 6.1 then go to settings->debugger and tick "Override existing breakpoints"

the game might crash though

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SwaggaJackin'
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PostPosted: Mon Apr 09, 2012 2:27 pm    Post subject: Reply with quote

Game crashed. I also tried using software breakpoints but nothing showed up. However I did get the instruction right before the crash. So the game is creating it's own breakpoints to check for something? What's causing this?
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Dark Byte
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PostPosted: Mon Apr 09, 2012 2:37 pm    Post subject: Reply with quote

Some protections do this. Fill up all hardware breakpoints and make it point to a routine that will crash when executed. When that routine is then called the breakpoint handler changes eip to a function that does not cause a crash
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SwaggaJackin'
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PostPosted: Mon Apr 09, 2012 3:19 pm    Post subject: Reply with quote

What's the best way to "catch the crash" before it executes so I know what function is doing it so I can reroute it?
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Dark Byte
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PostPosted: Mon Apr 09, 2012 4:42 pm    Post subject: Reply with quote

no idea, try looking at the debug registers and find out how they are set. If it's an execute bp, set a software breakpoint in front of it,. Perhaps single stepping will follow it
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Dark Byte
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PostPosted: Tue Apr 10, 2012 8:56 am    Post subject: Reply with quote

And if it is an onAccess or onWrite breakpoint you can check that using the veh debugger and the debug event list (without setting any breakpoint) . Rightclick the debugevent that says a breakpoint triggered and get the state
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