Debugging

Rich Gilson signman359 at gmail.com
Thu Feb 23 19:59:37 CST 2006


I appreciate the tip about falling back on the relay debug channel, but may I 
ask how you know the problem is with BlockInput not existing?  Is there 
something from the output that I'm not understanding, or do you just know 
that because you're familiar with the kernel32.dll code?

I'm a long way from ever becoming a Wine developer, but I do want to learn how 
to either get my programs working, or to be able to accurately identify bugs.

On Thursday 23 February 2006 20:18, Juan Lang wrote:
> Hi Rich, the key one to use is relay.  WINEDEBUG=relay tells you every API
> function that's called.  It can be a bit overwhelming, but it's what you
> fall back on when nothing else is working.
>
> I downloaded and tried it, and scanned backwards in my relay trace a good
> distance till I saw some failure.  Here's what I think it is:
> 0009:Call kernel32.GetProcAddress(20290000,0052b895 "BlockInput")
> ret=0052cc6a
> 0009:Call ntdll.RtlInitAnsiString(73ccfe20,0052b895 "BlockInput")
> ret=201d2c3e
> 0009:Ret  ntdll.RtlInitAnsiString() retval=00000000 ret=201d2c3e
> 0009:Call
> ntdll.LdrGetProcedureAddress(20290000,73ccfe20,00000000,73ccfe1c)
> ret=201d2c4d
> 0009:Ret  ntdll.LdrGetProcedureAddress() retval=c000007a ret=201d2c4d
> 0009:Call ntdll.RtlNtStatusToDosError(c000007a) ret=201d2c7d
> 0009:Ret  ntdll.RtlNtStatusToDosError() retval=0000007f ret=201d2c7d
> 0009:Ret  kernel32.GetProcAddress() retval=00000000 ret=0052cc6a
> 0009:Call kernel32.ExitProcess(0052cb10) ret=0052cc7b
>
> That is, somebody's trying to get the function BlockInput from
> kernel32.dll, and it isn't there, so the program exits.
>
> I don't know if this is in MFC somewhere, or in the program's source.
> Luckily the source is available, so you might be able to proceed.  Hope
> that helps,
> --Juan
>
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