Re: Re: kld(): Undefined Symbols error

• Subject: Re: Re: kld(): Undefined Symbols error
• From: "Shawn Erickson" <email@hidden>
• Date: Tue, 1 Aug 2006 12:22:51 -0700
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On 8/1/06, Dinesh Bhat <email@hidden> wrote:
> Hi there,
>
> Whenever I add IOWorkLoop and try loading the kext, I get the following
> error.
>
> kld(): Undefined symbols:

You have unresolved symbols.  To determine the real name of the
symbols, use "c++filt" on the symbol name, with the extra underscore _
removed from the beginning of the symbol name.  For example:

c++filt _ZN26com_linsys_driver_receiver11getWorkLoopEv
c++filt _ZN26com_linsys_driver_receiver15handleInterruptEv
c++filt _ZN26com_linsys_driver_receiver16enableInterruptsEv
c++filt _ZN26com_linsys_driver_receiver16interruptOccuredEP8OSObjectP22IOInterruptEventSourcei

Gives you symbol names of

com_linsys_driver_receiver::getWorkLoop()
com_linsys_driver_receiver::handleInterrupt()
com_linsys_driver_receiver::enableInterrupts()
com_linsys_driver_receiver::interruptOccured(OSObject*,
IOInterruptEventSource*, int)

This looks like you don't have your super class correctly setup for
your com_linsys_driver_receiver class. So what is your super class and
did you define the meta class information for your class correctly?

review the  <http://developer.apple.com/documentation/DeviceDrivers/Conceptual/IOKitFundamentals/BaseClasses/chapter_6_section_2.html#//apple_ref/doc/uid/TP0000016-DontLinkElementID_1>

-Shawn
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