WineLib Seg Fault?
Jussi Jumppanen
jussij at zeusedit.com
Mon Nov 19 19:26:44 CST 2001
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
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