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Asked: 2026-05-10T20:11:09+00:00

Trying to create my first iPhone app that would play back audio. When I

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Trying to create my first iPhone app that would play back audio. When I try to set up playback, messages like these appear in gdb:

=shlibs-removed,shlib-info=[num=’54’,name=’AudioIPCPlugIn’,kind=’B’,dyld-addr=’0x2c2000′,reason=’dyld’,requested-state=’E’,state=’E’,path=’/System/Library/Extensions/AudioIPCDriver.kext/Contents/ Resources/AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn’, description=’/System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/ AudioIPCPlugIn.bundle/Contents/MacOS/AudioIPCPlugIn’,loaded_addr=’0x2c2000′,slide=’0x2c2000′,prefix=”]

=shlibs-removed,shlib-info=[num=’55’,name=’AppleHDAHALPlugIn’,kind=’B’,dyld-addr=’0x2cb000′,reason=’dyld’,requested-state=’E’,state=’E’,path=’/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/ AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn’, description=’/System/Library/Extensions/AppleHDA.kext/Contents/PlugIns/ AppleHDAHALPlugIn.bundle/Contents/MacOS/AppleHDAHALPlugIn’,loaded_addr=’0x2cb000′, slide=’0x2cb000′,prefix=”]

Not being familiar with gdb, I’m interested to know in general what sort of problems these types of messages might refer to.

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1 Answer

  1. Those are informational messages from the system which let you know when a dynamic library gets unloaded from your executable. I presume that they occur in this case because you are perhaps doing a bit too much destructing (ie, unloading bundles, etc.) when you try to shut down your app’s connection to CoreAudio.

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