Comment 32 for bug 664431

On Mon, Nov 8, 2010 at 2:09 PM, Thiago Macieira
<email address hidden> wrote:
> Em Segunda-feira 08 Novembro 2010, às 16:50:52, você escreveu:
>> testing the packages from ricardos PPA on a non NEON architecture
>> results in a SIGILL again :(
>
> Can you post a backtrace? It would be useful if the build used -fno-inline, or
> this will get a bit tricky to track down.
>
> Please also verify that Qt did detect that Neon is absent. Run libQtCore.so.4
> and paste the last line of the output. E.g.:
>
> # /usr/lib/libQtCore.so.4
> This is the QtCore library version 4.7.1
> Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
> Contact: Nokia Corporation (<email address hidden>)
>
> Build key:           armv6 linux g++-4 full-config
> Compat build key:    |
> Build date:          2010-11-04
> Installation prefix: /usr
> Library path:        /usr/lib
> Include path:        /usr/include/qt4
> Processor features:  neon
>
> If it says "neon" is present (like above), then it looks like there was a
> detection mistake. Can you try turning the feature off by setting
> QT_NO_CPU_FEATURE=neon and running the app again?

4.7, the one used by Maverick doesn't export the processor features line.

Best thing would be to get the proper trace from the sigill.

> Finally, it would be nice also to have the command-line of the compiler used
> when compiling the actual .cpp file.

One example:
g++ -c -include .pch/release-shared/QtCore -g -O2
-I/usr/include/freetype2 -pthread -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -mfpu=neon -O2 -fvisibility=hidden
-fvisibility-inlines-hidden -Wall -W -D_REENTRANT -fPIC -DQT_SHARED
-DQT_BUILD_CORE_LIB -DQT_NO_USING_NAMESPACE -DQT_NO_CAST_TO_ASCII
-DQT_ASCII_CAST_WARNINGS -DQT3_SUPPORT -DQT_MOC_COMPAT
-DQT_USE_FAST_OPERATOR_PLUS -DQT_USE_FAST_CONCATENATION
-DELF_INTERPRETER=\"/lib/ld-linux.so.3\" -DHB_EXPORT=Q_CORE_EXPORT
-DQT_HAVE_NEON -DQT_NO_DEBUG -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE
-I../../mkspecs/linux-g++ -I. -I../../include -I../../include/QtCore
-I.rcc/release-shared -Iglobal -I../3rdparty/harfbuzz/src
-I../3rdparty/md5 -I../3rdparty/md4 -I.moc/release-shared -o
.obj/release-shared/qsimd.o tools/qsimd.cpp