You want to attach with an Arm-aware gdb to the QEMU debug stub, not connect an x86 gdb to the x86 QEMU process. On Debian/Ubuntu the gdb in the 'gdb-multiarch' package will do.
Also, I gave you a wrong command line by mistake: you need "-g 1234", not "-g -" (-g wants the TCP port as an option). So you run the chroot/qemu command; QEMU should then sit waiting for a connection on port 1234 from gdb. In another terminal run $ gdb-multiarch [...] (gdb) set arch arm The target architecture is assumed to be arm (gdb) target remote :1234 Remote debugging using :1234 0x00008880 in ?? () You can then tell gdb 'c' to continue. You should also be able to tell gdb the arm binary filename so it can pick up symbols, but I forget how. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1776478/+subscriptions
