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[Qemu-devel] [Bug 1776478] Re: Getting qemu: uncaught target signal 6 wh


From: guysoft
Subject: [Qemu-devel] [Bug 1776478] Re: Getting qemu: uncaught target signal 6 when running lv2 plugin cross-compilation
Date: Tue, 12 Jun 2018 21:25:37 -0000

Hey,
Not sure how to boil it down (yet). But this would reproduce it for you:

cd /tmp
wget 
https://downloads.raspberrypi.org/raspbian_lite/images/raspbian_lite-2018-04-19/2018-04-18-raspbian-stretch-lite.zip
unzip 2018-04-18-raspbian-stretch-lite.zip
wget https://raw.githubusercontent.com/guysoft/CustomPiOS/devel/src/common.sh
source ./common
mkdir ./mount

mount_image ./2018-04-18-raspbian-stretch-lite.img 2 ./mount
cd mount
sudo bash -c "$(declare -f fixLd); fixLd"
sudo cp $(which qemu-arm-static) ./usr/bin/
sudo chroot .
apt-get update

apt-get install -y git premake libfreetype6-dev libgl1-mesa-dev libx11-dev 
libasound2-dev
git clone https://github.com/DISTRHO/DISTRHO-Ports.git --depth=1

cd DISTRHO-Ports/

export RASPPI=true
export LINUX_EMBED=true

./scripts/premake-update.sh linux

make lv2 -j4


once you have it all running you can just run again

./libs/lv2_ttl_generator ./bin/lv2/TAL-Filter-2.lv2/TAL-Filter-2.so

-- 
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https://bugs.launchpad.net/bugs/1776478

Title:
  Getting qemu: uncaught target signal 6 when running  lv2 plugin cross-
  compilation

Status in QEMU:
  New

Bug description:
  Hey,
  I am part of the Zynthian team and we use qemu-arm-static to cross compile 
lv2 audio plugins.

  When running a compilation of DISTRHO-Ports we get:

  lv2_ttl_generator: pthread_mutex_lock.c:81: __pthread_mutex_lock: Assertion 
`mutex->__data.__owner == 0' failed.
  qemu: uncaught target signal 6 (Aborted) - core dumped
  ./scripts/generate-ttl.sh: line 27: 16524 Aborted                 $GEN ./$FILE
  Makefile:62: recipe for target 'gen_lv2' failed
  make[1]: *** [gen_lv2] Error 134
  make[1]: Leaving directory '/home/pi/zynthian-sw/plugins/DISTRHO-Ports'
  Makefile:104: recipe for target 'lv2' failed
  make: *** [lv2] Error 2

  
  lv2_ttl_generator source is here:
  https://github.com/DISTRHO/DISTRHO-Ports/tree/master/libs/lv2-ttl-generator

  The command that is ruining is
  lv2_ttl_generator ./TAL-Filter-2.so 

  And ./TAL-Filter-2.so source is here:
  https://github.com/DISTRHO/DISTRHO-Ports/tree/master/ports/tal-filter-2/source


  Is there a way to debug what is going on?
  This runs fine on a Raspberrypi which is armv7

  A workaround would also help.

  
  Bug in Zynthian:
  https://github.com/zynthian/zynthian-sys/issues/59
  Bug in DISTRHO-Ports:
  https://github.com/DISTRHO/DISTRHO-Ports/issues/29

  Using qemu-arm-static version from master from two days ago:
  qemu-arm version 2.12.50 (v2.12.0-1182-ga7a7309ca5-dirty), commit: 
a7a7309ca52c327c6603d60db90ae4feeae719f7

  Also saw this in qemu-arm version 2.12.0 (Debian 1:2.12+dfsg-3)

  Thanks,
  Guy

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