Looking for shell access for (minimal) LLDB testing

[Jason Bacon]

On 2/3/21 1:31 PM, Justin Hibbits wrote:
> On Mon, 01 Feb 2021 13:16:38 +0100
> Michał Górny <mgorny at gentoo.org> wrote:
>
>> Hello,
>>
>> I'm working on modernizing LLDB's FreeBSD support.  As a part of that,
>> I have to port all architecture-specific code to a new process plugin
>> architecture, and I'd prefer to test that my code actually works ;-).
>>
>> Sadly, FWICS FreeBSD doesn't work under qemu-system-ppc [1], and my
>> attempts seem to confirm that.  For this reason I'd like to ask --
>> would someone be able to grant me user-privilege shell access to a
>> machine (or VM) running 32-bit FreeBSD on PowerPC for a few days?
>>
>> I probably won't need root access, though rsync(1) installed would be
>> helpful.  I'm going to need around 1G of disk space but I can try to
>> squeeze in less than that if necessary.  All builds are done on my
>> home machine via a cross-compiler, so I won't be using much CPU or
>> memory, just some network bandwidth to transfer the data.
>>
>> TIA for your help.
>>
>> [1] https://wiki.freebsd.org/QemuRecipes#powerpc
>>
> Hi Michał,
>
> I don't have a 32-bit powerpc system available for you to use, but you
> should be able to run lldb just fine on the FreeBSD powerpc64 Qemu
> recipe.  Do you need a 32-bit kernel, or just 32-bit userland?
>
> If you need a 32-bit kernel, I have successfully run FreeBSD on a
> Book-E qemu, so if you can build a MPC85XX kernel, you can run in that.
>
> - Justin
> _______________________________________________
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I had some trouble with FreeBSD under qemu a while back and the solution 
was to specify am older cpu architecture, namely
pseries-2.5:

#!/bin/sh -e

##########################################################################
#   Script description:
#       Install/boot FreeBSD-powerpc on qemu
#
#   History:
#   Date        Name        Modification
#   2018-07-07  Jason Bacon Begin
#
#   https://wiki.freebsd.org/QemuRecipes
##########################################################################

usage()
{
     printf "Usage: $0 install|boot disk-image raw|qcow2 [cd-image]\n"
     exit 1
}


##########################################################################
#   Main
##########################################################################

if [ $# -lt 3 ]; then
     usage
fi

cmd=$1
diskimage=$2
format=$3

case $cmd in
install)
     cdimage=$4
     set -x
     if [ ! -e $diskimage ]; then
         qemu-img create -f $format $diskimage 20g
     fi
     # qemu-system-ppc64 -nographic
     # qemu-system-ppc64 -m 2048 -machine pseries-2.5
     qemu-system-ppc64 -m 2048 -machine pseries-2.5 \
         -cdrom $cdimage -drive file=$diskimage,format=$format -boot d
     ;;

boot)
     qemu-system-ppc64 -m 2048 -machine pseries-2.5 \
         -drive file=$diskimage,format=$format -boot c
     ;;

*)
     usage
     ;;

esac


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