WineLib Seg Fault?

[Jussi Jumppanen]

lawson_whitney at juno.com wrote:

> Now for _my_ version of "Why are you doing this?": Why run it with
> --debugmsg +all ?? If you have the source

I do have the source.

>, can you not tell what functions it is using/interested in/unhappy
> with the behavior of?

But from the trace I am not even sure if the code has hit my source
code since I do not recognize the calls to NtEnumerateValueKey.

I was hoping for some inspiration on how to track down this bug :)

> For general debugging, +relay is what you want.

I ran the function with:

  $ WINEPRELOAD=./x_zeus.so wine --debugmsg +relay

and all that got produced in the trace output was:

  Segmetation Fault

I suspect that there is something wrong with the loading
of the x_zeus.so since a I wrote a simple test application
and it loaded and ran fine. I am just not sure how to determine 
where it is going wrong?

As a test I compared the traces for the succesful load of
my test application and the failed load and both are identical 
up to the point of:

  boot_done()

  Failed Load:
  ============
  
  0806d080: boot_done() = 0
  0806d080:trace:heap:HeapAlloc (40360000,00000002,00000018): returning
4036168c
  Segmentation fault
  0806d080: *killed* exit_code=0
  /home/jussij/.wine/user.reg: saving key \\User\\jussij
  [jussij at linux zeus]$ /home/jussij/.wine/system.reg: saving key
\\Machine
  /home/jussij/.wine/userdef.reg: saving key \\User\\.Default
  Server: exiting (pid=6217)
  
  Successful load:
  ================
  0806d080: boot_done() = 0
  0806d080:trace:heap:HeapAlloc (40360000,00000002,00000018): returning
4036169c
  0806d080:trace:heap:HeapAlloc (40360000,00000002,00000018): returning
403616c0
  0806d080:trace:heap:HeapAlloc (40360000,00000002,00000018): returning
403616e4
  0806d080:trace:global:GLOBAL_Alloc 131 flags=0042
  0806d080:trace:heap:HeapAlloc (40360000,00000002,000000a0): returning
40361708
  0806d080:trace:string:lstrcpynA (0x4036177d, "ntdll."..., 6)
  0806d080:trace:dosfs:GetShortPathNameA "ntdll.dll"
  0806d080:trace:heap:HeapAlloc (40360000,00000002,00000400): returning
403617b4
  .....

So it would appear the fault lies very early on in the loading of
the x_test.so module.

Are there any tips on how to go about debugging this point of the
load process?

I tried using Winedbg but it behaves the same as using Wine.

Regards Jussi Jumppanen
jussij at zeusedit.com