monotouch symbols to show up in Instuments

Newbie to monotouch and 'native' iPhone development here. I'm trying to debug some memory leaks and having trouble 开发者_如何学JAVAdoing so. My app is UIImage heavy and I'm definitely leaking them, but have trouble finding where.

Trying to use instruments to find where, but looks like I can't see the symbols, just see raw addresses. Any idea on how to get instruments to see correct callstack? Would seem to me that since monotouch doesn't JIT compile, monotouch should be able to generate symbols for the code it generates.

Example of callstack in instruments:

   0 libSystem.B.dylib calloc
   1 libobjc.A.dylib _internal_class_createInstanceFromZone
   2 libobjc.A.dylib class_createInstance
   3 CoreFoundation +[NSObject(NSObject) allocWithZone:]
   4 CoreFoundation +[NSObject(NSObject) alloc]
   5 UIKit GetPartImages
   6 UIKit -[UITextFieldRoundedRectBackgroundView _updateImages]
   7 UIKit -[UITextFieldBackgroundView initWithFrame:active:]
   8 UIKit -[UITextField setBorderStyle:]
   9  0xdf40ced
  10  0xdf41846
  11  0xdf40f0e
  12  0xdf3fc75
  13  0x88b2051
  14 iPhone mono_jit_runtime_invoke
  15 iPhone mono_runtime_invoke
  16 iPhone mono_runtime_invoke_array
  17 iPhone ves_icall_InternalInvoke
  18  0xcfc5d93
  19  0xcfc57c5
  20  0xcfc5648
  21  0xcfc9083
  22  0xcfc8f2d
  23  0xcfc8d93
  24  0xdcb02c1
  25  0xdcb025b
  26  0xdcb0034