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Re: kld: Undefined symbols IOUserClient::registerNotificationPort



G'day Rob,

I've done a little research on this and you will have to file a bug. I'll try to get some new headers into the project as soon as possible. It seems that the kpi changes have turned mach_port_t from a ipc_port structure to a natural_t. This is a bit of a shame as it has been hardwired into our exported libraries.

Godfrey

On 05/08/2005, at 21:10 , Rob Cas wrote:

Hi,

I'm migrating a PCI driver from Panther (gcc 3.3) to Tiger. It links
fine, but on kextload gives a:
kld(): Undefined symbols
__ZN34someUserClientSubClass24registerNotificationPortEjmm

My exported symbols file previously (from Panther) contained:
__ZN34someUserClientSubClass24registerNotificationPortEP8ipc_portmm

which matches the parameters to System.kext/Plugins/IOKit.kext/IOKit:
__ZN12IOUserClient24registerNotificationPortEP8ipc_portmm


However, an nm -g on the object files in my build folder gives: __ZN34someUserClientSubClass24registerNotificationPortEjmm


Does anybody know why the symbols of my IOUserClient sub-class would start having an Ejmm post-fix rather than the expected ipc_portmm postfix which would match the symbols in the Tiger kernel?

(
- Re-building with either gcc 3.3 or 4.0 doesn't seem to make a difference.
- The signature of my sub-class member function matches that of IOUserClient:
virtual IOReturn registerNotificationPort(mach_port_t port, UInt32
type, UInt32 refCon );
- If I remove the exported symbols file, the kext loads, despite the
mismatched parameters in the registerNotificationPort name...
)


Thanks in advance for any ideas,
 Rob.
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References: 
 >kld: Undefined symbols IOUserClient::registerNotificationPort (From: Rob Cas <email@hidden>)



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