Bug 3597 - [LinkWith] should warn/error if no matching architecture is available
Summary: [LinkWith] should warn/error if no matching architecture is available
Status: VERIFIED FIXED
Alias: None
Product: iOS
Classification: Xamarin
Component: Tools ()
Version: 5.2
Hardware: PC Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Sebastien Pouliot
URL: https://bugzilla.xamarin.com/show_bug...
Depends on:
Blocks:
 
Reported: 2012-02-22 15:07 UTC by Sebastien Pouliot
Modified: 2012-02-29 13:17 UTC (History)
3 users (show)

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

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Status:
VERIFIED FIXED

Description Sebastien Pouliot 2012-02-22 15:07:44 UTC
ref: https://bugzilla.xamarin.com/show_bug.cgi?id=3594

A native library had only ARMv7 and i386 binaries and was build with MonoTouch's default (i.e. ARMv6) leading to a stackoverflow crash (on devices only) that took much time to diagnose.

Since [LinkAway] knows which architecture is available and `mtouch` knows what's the target architecture(s) we could issue a warning to say we'll be "ignoring" the native library. That hint would have saved quite a bit of time.
Comment 1 Sebastien Pouliot 2012-02-22 22:01:29 UTC
The new mtouch tool will issue warnings whenever a native library is ignored*, e.g.

5.2-series cb365c5d9eb69883f100930c101e4b47094768ce
master 2c196df2d78ba5a87dc1dec1cff5470bb6108cfb

warning MT1301: Native library `libATMHudSDK.a` (i386, ARMv6, ARMv7) was ignored since it does not match the current build architecture(s) (ARMv7+Thumb2)

or, inside MD's Error List like:
https://bugzilla.xamarin.com/attachment.cgi?id=1407

* it's not 100% accurate since it will warn if someone has libNormal.a, libSuper6.a, libExtra7.a and libAwesome7t.a for different architectures - but those warnings are much better than being blind to ignored libraries. We can revisit this if the new warnings becomes a too common problem.
Comment 2 Eric Beisecker 2012-02-29 13:17:29 UTC
Verified warning is present in 5.2.6