[Bug 664431] Re: QT on armel is built with NEON by default

[Thiago Macieira]

This is the actual commit that introduces runtime verification of processor features on ARM:
 http://qt.gitorious.org/qt/qt/commit/5070c3ae331faf18f6997535356853cc61ef0ad7

It was introduced before Qt 4.7.0rc1 so the Ubuntu build should have it.

Therefore, there are two possibilities:
1) the detection mechanism is faulty and concluding that neon is present when it isn't
2) the detection mechanism is working but there's some unprotected Neon somewhere

To check #1, please take a Qt built without "-no-neon", place it on a
device without Neon and then run libQtCore.so.4. The last line of the
output should be "Processor features:" and list probably nothing.

If it is case #2, then can someone post a backtrace of the SIGILL?

-- 
QT on armel is built with NEON by default
https://bugs.launchpad.net/bugs/664431
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