Bug 6536 - MT crash reports aren't symbolicated properly
Summary: MT crash reports aren't symbolicated properly
Status: RESOLVED INVALID
Alias: None
Product: iOS
Classification: Xamarin
Component: General ()
Version: 5.99.x
Hardware: PC Linux
: --- normal
Target Milestone: Untriaged
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2012-08-15 08:12 UTC by Marek Habersack
Modified: 2012-08-15 15:05 UTC (History)
3 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED INVALID

Description Marek Habersack 2012-08-15 08:12:44 UTC
Environment:
  Xcode: 4.4.1
  OSX: 10.8
  MonoTouch: 5.1.13
  MonoDevelop: git master rev c666196ba

When the application crashes (or is forcibly killed on device), looking at the crash report in Organizer reveals that only the SDK symbols have been resolved, the MT app ones are not.

Steps to reproduce:

 * Open Hello_iPad sample in MonoDevelop
 * Set configuration to Debug|iPhone
 * Start debugging on device
Comment 1 Marek Habersack 2012-08-15 08:16:17 UTC
submitted the report prematurely :). The remaining repro steps:

 * Force the application to quit (Hold the On/Off button until Slide to power off apears, hold the Home button until the app crashes)
 * Open Organizer
 * Open the crash report from the device, Xcode will symbolicate the output automatically

The generated dSym output is correct, since it's possible to resolve the symbols using atos like so:

atos -arch arm7 -o Hello_iPad.app/Hello_iPad 0xXXXXXXXX

provided that both Hello_iPad.app and Hello_iPad.app.dSYM are siblings in the same directory
Comment 3 Miguel de Icaza [MSFT] 2012-08-15 15:05:04 UTC
The problem is that symbolication actually requires MacOS Spotlight to run and process your file.

So you really are at the mercy of mdworker.   Sometimes it might be busy, sometimes it might be waiting, sometimes it might not know that the code was added.

Recent mtouch versions manually call the tool to force a reload of the metadata, but ssymbols for other apps (like the runtime) must be dealt with manually.