Open Radar

 
Summary:
Background:  I was trying to write some simple code that logs to and reads back from the ASL log on iOS.  The same code works in a Mac OS X application and also in the iOS simulator, however, asl_search doesn't read the records back on iOS.  So, I posted a question on the devforums (https://devforums.apple.com/message/850994) and I got some feedback from an Apple DTS engineer that listed a number of differences between the behaviour of ASL on Mac OS X and iOS. 

As far as I can tell, this information is not documented anywhere.

Steps to Reproduce:
Search for information that outlines the difference in ASL behaviour between iOS and OS X.

Expected Results:
An official Apple document that describes (at least) the following pieces of info:
 - iOS only stores 256 entries
 - iOS is in-memory only 
 - iOS restricts access to kernel entries
 - other differences??

Actual Results:
No documentation.  There are several places where Quinn describes the differences in the dev forums or on stack overflow, but that is not the right place for this info.

Regression:

Notes:

My original question in the dev forum was about why asl_search wasn't retrieving log entries that I had logged.  This radar is not about that (I will raise a separate radar for that)... this radar is about the fact that the documentation does not describe the different implementation details between the platforms.