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Re: Kernel Locks

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Re: Kernel Locks

Subject: Re: Kernel Locks
From: Quinn <email@hidden>
Date: Wed, 15 Nov 2006 15:50:47 +0000

At 5:24 +0000 15/11/06, Nithin prakash wrote:

I m using MAC OS X 10.4 on PowerG5 machine.I wanted to use kernel locks in one of my NKE.I have found the KPis in kern/locks.h file.But when i used it, it is showing undefined symbols while loading.I would like to know what is the library i have to link with it inorder to make it work. These are the undefined symbols i got. lck_attr_alloc_init lck_attr_free lck_attr_setdefault lck_mtx_lock lck_mtx_unlock

These functions are exported by the libkern KPI. You need to add an "com.apple.kpi.libkern" entry to your "OSBundleLibraries" dictionary in your "Info.plist". See the following page for more information about this. Specifically, look at the "KPIs and KEXT Dependencies in Mac OS X v10.4 and Later" section.

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

S+E
--
Quinn "The Eskimo!"                    <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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  >Kernel Locks (From: Nithin prakash <email@hidden>)




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