Bug 1856 - Architecture is sometimes incorrect for qt4 tools
Summary: Architecture is sometimes incorrect for qt4 tools
Status: RESOLVED FIXED
Alias: None
Product: OE-Core
Classification: Build System, Metadata & Runtime
Component: core (show other bugs)
Version: unspecified
Hardware: Other arm
: Medium normal
Target Milestone: 1.2 M2
Assignee: Paul Eggleton
QA Contact:
URL:
Whiteboard: Fix merged to master (4 Jan)
Depends on:
Blocks:
 
Reported: 2011-12-21 02:59 UTC by Paul Eggleton
Modified: 2012-01-04 06:16 UTC (History)
3 users (show)

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OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: ---

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Description Paul Eggleton 2011-12-21 02:59:16 UTC 
Some users see the following QA errors when building qt4:
> | ERROR: QA Issue: Architecture did not match (40 to 3) on /work/armv5te-angstrom-linux-gnueabi/qt4-embedded-4.7.4-r39.5/packages-split/qt4-embedded-tools/usr/bin/rcc
> | ERROR: QA Issue: Architecture did not match (40 to 3) on /work/armv5te-angstrom-linux-gnueabi/qt4-embedded-4.7.4-r39.5/packages-split/qt4-embedded-tools/usr/bin/moc
> | ERROR: QA Issue: Architecture did not match (40 to 3) on /work/armv5te-angstrom-linux-gnueabi/qt4-embedded-4.7.4-r39.5/packages-split/qt4-embedded-tools/usr/bin/uic

We originally fixed this problem by simply deleting these executables [1] on the assumption that they were always meant to be host executables. However, after a patch submission [2] and some testing with various architectures the executables were found to have the correct architecture, so the patch was effectively reverted. Now we have a report [3] of the problem returning.

We need to figure out the correct solution to this (and not just revert the patch.) The first thing to do is to figure out how to reproduce it, because at the moment I can't.

[1] http://cgit.openembedded.org/openembedded-core/commit/?id=69eeb3d2276e5b10d084b47d308ecfc8daf8b467
[2] http://patches.openembedded.org/patch/16397/
[3] http://lists.linuxtogo.org/pipermail/openembedded-core/2011-December/014779.html
Comment 1 Paul Eggleton 2011-12-22 09:42:16 UTC 
I have a fix for this but am waiting for Eric Bénard (or someone else who experienced this issue) to verify that it fixes the problem. The patch can be found in this OE-core contrib branch:

http://cgit.openembedded.org/openembedded-core-contrib/log/?h=paule/qt4-arch-fix
Comment 2 Paul Eggleton 2012-01-04 06:16:43 UTC 
Fix merged to master in revision 99a6e1a3a453c17575439723599da6bef62175bb.