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Re: kextload link/load error
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Re: kextload link/load error


  • Subject: Re: kextload link/load error
  • From: Andrew Myrick <email@hidden>
  • Date: Wed, 25 Jun 2008 14:39:09 -0700

On a related note, you can use the kextlibs(8) tool on Leopard systems to figure out what your OSBundleLibraries should be.

-Andrew

On Jun 25, 2008, at 2:10 PM, mm w wrote:

Hi,
you should read this

http://developer.apple.com/documentation/DeviceDrivers/Conceptual/IOKitFundamentals/Families/chapter_7_section_3.html



On Wed, Jun 25, 2008 at 1:50 PM, Vanessa Li <email@hidden> wrote:
Hi,



I am trying to use a spinlock in my kext and am having problems with loading
it. I am calling the initialization functions and using lck_spin_lock() and
lck_spin_unlock(). Here is the error message:




kextload: resolving dependencies for kernel extensions with validation and
authentication failures


kextload: extension /System/Library/Extensions/MyKext.kext/ appears to be
loadable


kextload: loading extension /System/Library/Extensions/MyKext.kext/

kld(): Undefined symbols:

_lck_attr_alloc_init

_lck_attr_free

_lck_grp_alloc_init

_lck_grp_attr_alloc_init

_lck_grp_attr_free

_lck_grp_attr_setstat

_lck_grp_free

_lck_spin_alloc_init

_lck_spin_free

_lck_spin_lock

_lck_spin_unlock

kextload: kld_load_from_memory() failed for module
/System/Library/Extensions/MyKext.kext/Contents/MacOS/MyKext

kextload: a link/load error occured for kernel extension
/System/Library/Extensions/MyKext.kext/



However, I am able to find these symbols when doing the command nm
/mach_kernel | less.



I am also including kernel.frameworks in my project.





Any ideas what's wrong?



Thanks.



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-- -mmw _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden

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References: 
 >kextload link/load error (From: "Vanessa Li" <email@hidden>)
 >Re: kextload link/load error (From: "mm w" <email@hidden>)

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