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The kernel extension I am writing needs to include a framework (DirectIO), so I added the framework in the “Linked Libraries” section of the target properties. I then included it in the main source file.
The problem is, whenever I try to build it, it gives this error:
/Developer/usr/bin/ld_classic: incompatible flag -framework used (must specify "-dynamic" to be used)
I’m using XCode 3.2 on Snow Leopard, building for OSX i386. Is it possible to include a .framework in a .kext target?
I don’t think you can link with a framework (other than Kernel.framework) or a dynamic library when building a kernel extension.
Your code will run in supervisor mode. LD related stuff is basically not available in that stage.
You may however link with other extensions (/System/Library/Extensions), using your kext’s plist file (OSBundleLibraries).
See ‘Determine Kext Dependencies’ of the Kernel Extension Programming Topics documentation.
There’s a lot of I/O related stuff in the available kernel extension. Maybe you’ll find there an equivalent.