Re: NKE dependencies

• Subject: Re: NKE dependencies
• From: Michael Tuexen <email@hidden>
• Date: Thu, 20 Apr 2006 20:40:45 +0200
• Delivered-to: email@hidden
• Delivered-to: email@hidden

Hi Dean,

see my comments in-line.

Best regards
Michael

On Apr 20, 2006, at 8:29 PM, Dean Reece wrote:

On Apr 20, 2006, at 11:14, Michael Tuexen wrote:

Dear all,

I have a NKE which has a dependancy to com.apple.kernel.
To get it working on 10.4.6 on PPC I have

        <dict>
                <key>com.apple.kernel</key>
                <string>8.6.0</string>
        </dict>

in the corresponding Info.plist file.

I also built the NKE as a universal binary but I figured out that 10.4.6 on Intel uses 8.6.1.

How can I build a universal binary which loads on both? So how can I wildcard the last number?

Furthmore I think the NKE will load on all Tiger systems? So is it possible to state something like 8.?.? for the version?

Thank you very much for your help.

Best regards
Michael

You cannot - wildcarding is intentionally not supported. com.apple.kernel is only for building kexts that run on a single OS release, and in this case the PPC and Intel releases are distinct (thus the unique kernel version numbers). We strongly recommend against using com.apple.kernel for any commercial

product; it is intended for use during development, or special environments such as college labs where release-to-release binary compatibility (RRBC) isn't a requirement.

You really should be using the KPI identifiers (com.apple.kpi.whatever) or, at least the old-style identifiers (com.apple.kernel.whatever) if at all possible. If the functionality you need is not available in one of those symbol sets, then you should file a feature request asking for that functionality to be added via supported KPI.

This is documented at: <http://developer.apple.com/documentation/ Darwin/Conceptual/KEXTConcept/KEXTConceptDependencies/ kext_dependencies.html>

Hope this helps,
 - Dean

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