I am maintaining a PCI kext for a digital camera that operates on 10.2,
10.3, and now 10.4.1. If I build the kext in Xcode 1.5 it will load and work
fine on all three operating systems. If, however, I build it on Xcode 2.0
in Tiger, it will only load and run on Tiger. It will not load at boot time
on 10.3.9. If I try kextload in Terminal on 10.3.9 I get the following error
message:
25com_diaginc_iokit_SpotPCI is not compatible with its superclass,
9IOService superclass changed?
kextload: a link/load error occured for kernel extension
/System/Library/Extensions/SpotPCI.kext
load failed for extension /System/Library/Extensions/SpotPCI.kext
I am building against the 10.2.8 SDK. I get the same load error whether I
compile using GCC 4.0 or 3.3 in Xcode 2.0.
In the Xcode 2.0 release notes "About Xcode Tools", under the section
entitled "Compatibility of Built Binaries" it reads "IOKit-based device
drivers built with the GCC 3.3 or GCC 4.0 compilers will run on Mac OS X
v10.2 (Jaguar), Mac OS X v10.3 (Panther), and Mac OS X v10.4 (Tiger)
systems."
Any clues or hints as to what I need to change to get this to work?
Thanks,
Ron Duritsch
Diagnostic Instruments, Inc.
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