Bug 9916 - qt5 does not build on arm-buildroot-linux-uclibcgnueabihf for ARMv8 cores
Summary: qt5 does not build on arm-buildroot-linux-uclibcgnueabihf for ARMv8 cores
Status: RESOLVED FIXED
Alias: None
Product: buildroot
Classification: Unclassified
Component: Other (show other bugs)
Version: unspecified
Hardware: All Linux
: P5 normal
Target Milestone: ---
Assignee: unassigned
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-05-30 13:59 UTC by Uwe Hermann
Modified: 2017-07-19 20:26 UTC (History)
1 user (show)

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Description Uwe Hermann 2017-05-30 13:59:42 UTC 
Log:

[...]/output/host/usr/bin/arm-buildroot-linux-uclibcgnueabihf-g++ -c -pipe -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os --sysroot=[...]/output/host/usr/arm-buildroot-linux-uclibcgnueabihf/sysroot -O3 -O3 -std=c++1z -fvisibility=hidden -fvisibility-inlines-hidden -Wall -W -Wvla -Wdate-time -D_REENTRANT -fPIC -
DQT_NO_USING_NAMESPACE -DQT_NO_FOREACH -DQT_HAVE_POLL -DQT_HAVE_PPOLL -DQT_BUILD_CORE_LIB -DQT_BUILDING_QT -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DIS
ABLE_DEPRECATED_BEFORE=0x050000 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -DQT_NO_DEBUG -I. -Iglobal -I../3rdparty/harfbuzz/src -I../3rdparty/md5 -I../3rdparty/md4 -I../3rdparty/sha3 -I../3rdparty/double-conversion/include -I..
/3rdparty/double-conversion/include/double-conversion -I../3rdparty/forkfd -I../../include -I../../include/QtCore -I../../include/QtCore/5.8.0 -I../../include/QtCore/5.8.0/QtCore -I.moc -I/[...]/output/host/usr/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include/glib-2.0 -I[...]/output/host/usr/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/lib/glib-2.0/include -I[...]/output/host/usr/arm-buildroot-linux-uclibcgnueabihf/sysroot/usr/include -I../../mkspecs/devices/linux-buildroot-g++ -o .obj/qhash.o tools/qhash.cpp
{standard input}: Assembler messages:
{standard input}:262: Error: selected processor does not support `crc32w r2,r2,ip' in ARM mode
{standard input}:263: Error: selected processor does not support `crc32w r2,r2,lr' in ARM mode
{standard input}:290: Error: selected processor does not support `crc32b r2,r2,r3' in ARM mode
{standard input}:296: Error: selected processor does not support `crc32h r2,r2,r3' in ARM mode
{standard input}:302: Error: selected processor does not support `crc32w r2,r2,r3' in ARM mode
{standard input}:334: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:335: Error: selected processor does not support `crc32w r1,r1,r0' in ARM mode
{standard input}:357: Error: selected processor does not support `crc32b r1,r1,r3' in ARM mode
{standard input}:362: Error: selected processor does not support `crc32h r1,r1,r2' in ARM mode
{standard input}:368: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:401: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:402: Error: selected processor does not support `crc32w r1,r1,r0' in ARM mode
{standard input}:421: Error: selected processor does not support `crc32h r1,r1,r3' in ARM mode
{standard input}:426: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:468: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:469: Error: selected processor does not support `crc32w r1,r1,r0' in ARM mode
{standard input}:488: Error: selected processor does not support `crc32h r1,r1,r3' in ARM mode
{standard input}:493: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:540: Error: selected processor does not support `crc32w r1,r1,r2' in ARM mode
{standard input}:541: Error: selected processor does not support `crc32w r1,r1,r0' in ARM mode
{standard input}:579: Error: selected processor does not support `crc32b r1,r1,r3' in ARM mode
{standard input}:584: Error: selected processor does not support `crc32h r1,r1,r3' in ARM mode
{standard input}:590: Error: selected processor does not support `crc32w r1,r1,r3' in ARM mode
{standard input}:623: Error: selected processor does not support `crc32w r2,r2,r1' in ARM mode
{standard input}:624: Error: selected processor does not support `crc32w r2,r2,r0' in ARM mode
{standard input}:651: Error: selected processor does not support `crc32b r2,r2,r3' in ARM mode
{standard input}:656: Error: selected processor does not support `crc32h r2,r2,r3' in ARM mode
{standard input}:662: Error: selected processor does not support `crc32w r2,r2,r3' in ARM mode
{standard input}:1556: Error: selected processor does not support `crc32w r0,r0,r3' in ARM mode
{standard input}:1575: Error: selected processor does not support `crc32w r0,r0,r3' in ARM mode
{standard input}:1577: Error: selected processor does not support `crc32w r0,r0,r3' in ARM mode
{standard input}:1596: Error: selected processor does not support `crc32w r0,r0,r3' in ARM mode
{standard input}:1598: Error: selected processor does not support `crc32w r0,r0,r3' in ARM mode
Makefile:14306: recipe for target '.obj/qhash.o' failed
make[3]: *** [.obj/qhash.o] Error 1
make[3]: Target 'first' not remade because of errors.
make[3]: Leaving directory '[...]/output/build/qt5base-5.8.0/src/corelib'
Makefile:161: recipe for target 'sub-corelib-make_first' failed
make[2]: *** [sub-corelib-make_first] Error 2
Comment 1 Thomas Petazzoni 2017-05-30 15:00:55 UTC 
This happens only when you select an ARMv8 core, and is caused by a bug in binutils. We need to backport https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=27e5a270962fb92c07e7d476966ba380fa3bb68e in our binutils package. Haven't had the time to do this.
Comment 2 Ivan 2017-07-13 18:42:10 UTC 
Sorry if I did not get it. I am sort of a newbie.

Downloaded from git yesterday, selected the default raspberrypi3_defconfig, QT5.8, GCC 6.4, musl, binutils 2.28. The built stopped in qt5base in the same file above, for apparently the same reason:

tools/qhash.cpp:148:54: error: attribute(target("+crc")) is unknown
 static uint crc32(const Char *ptr, size_t len, uint h)
 
But the patch that you mentions "need to backport" seems already applied in the sources in output/build/host-binutils-2.28! At least the files the patch is supposed to change are already in the changed form.

So I did not get what is needed to solve this build issue.
Comment 3 Ivan 2017-07-13 20:33:44 UTC 
Just a follow up:

The patch here: https://patchwork.ozlabs.org/patch/751143/
solved the build issue.