Alex thanks for the reply,
I don't know what the debug symbol is, but my target system is QNX aarch64
below are the configuration of GDB,
(gdb) show configuration
This GDB was configured as follows:
configure --host=x86_64-pc-linux-gnu
--target=aarch64-unknown-nto-qnx7.1.0
--with-auto-load-dir=$debugdir:$datadir/auto-load
--with-auto-load-safe-path=$debugdir:$datadir/auto-load
--without-expat
--with-gdb-datadir=/opt/qnx710/host/linux/x86_64/usr/share/gdb
(relocatable)
--with-jit-reader-dir=/opt/qnx710/host/linux/x86_64/usr/lib/gdb
(relocatable)
--without-libunwind-ia64
--without-lzma
--without-babeltrace
--without-intel-pt
--disable-libmcheck
--without-mpfr
--with-python=/opt/qnx710/host/linux/x86_64/usr (relocatable)
--without-guile
--with-separate-debug-dir=/opt/qnx710/host/linux/x86_64/usr/lib/debug
(relocatable)
--with-sysroot=/opt/qnx710/target/qnx7/aarch64
while I got the below result, after executing the x/10i $pc
(gdb) x/10i $pc
=> 0x100000: .inst 0x5371242b ; undefined
0x100004: fcmla v21.8h, v3.8h, v16.h[1], #270
0x100008: .inst 0x64657472 ; undefined
0x10000c: ldnp d26, d27, [x9, #-176]
0x100010: .inst 0x72706974 ; undefined
0x100014: .inst 0x7365636f ; undefined
0x100018: .inst 0x733b2b73 ; undefined
0x10001c: fnmls z23.h, p0/m, z19.h, z18.h
0x100020: .inst 0x3b2b6b61 ; undefined
0x100024: .inst 0x72627768 ; undefined
Can you please let me know how I can step in ?
When I press c it does not execute further and hangs..
Faiq
On Tue, Feb 20, 2024 at 3:41 PM Alex Bennée <alex.ben...@linaro.org> wrote:
> Faiq Ali Sayed <faiqueali....@gmail.com> writes:
>
> > Hi everyone,
> > I am facing an issue during booting QNX VM using Qemu,
> > I have an image to Boot the VM. and when I trigger a Qemu command to
> create a VM it is stuck.
> > I also used a debugger to investigate but I can not see any result by
> GDB.
> >
> > Here is the output of first windows
> >
> > qemu-system-aarch64 -M xlnx-zcu102 -m 16G -serial mon:stdio -display
> none -device
> > loader,file=QNX-IFS,addr=0x00100000,cpu-num=0 -drive
> >
> file=/home/faiq/Downloads/install/BootSD/qemu-boot_sd.img,if=sd,format=raw,index=1
> -boot mode=5 -net
> > nic,model=cadence_gem -net nic,model=cadence_gem -net
> nic,model=cadence_gem -net
> > nic,model=cadence_gem,netdev=xzynq0 -netdev
> user,id=xzynq0,tftp=/tftpboot -nographic -global
> > xlnx,zynqmp-boot.cpu-num=0 -global 'xlnx,zynqmp-boot.use-pmufw=true' -s
> -S
> >
> > qemu-system-aarch64: warning: hub 0 is not connected to host network
>
> Is this QNX VM image built for the xlnx-zcu102 board?
>
> > on the other hand, here is the output of GDB:
> >
> > (gdb) target remote :1234
> > Remote debugging using :1234
> > warning: No executable has been specified and target does not support
> > determining executable automatically. Try using the "file" command.
> > 0x0000000000100000 in ?? ()
> > (gdb) c
> > Continuing.
>
> You'll either want the debug symbols for your image or tell GDB what the
> target arch is. Check you are somewhere sane by doing:
>
> x/10i $pc
>
> and step through the instructions and see where it goes. If you hit
> Ctrl-C are you executing nonsense instructions or in a tight loop
> hanging?
>
>
> --
> Alex Bennée
> Virtualisation Tech Lead @ Linaro
>
--
Kind Regard-
Faiq Ali Sayed
