Re: [PATCH] example of 64-bit debug

[Samuel Thibault]

Applied, thanks!

pasha (biblio), le ven. 12 mai 2023 00:51:21 +0200, a ecrit:
> >On Thu, 2023-05-11 at 02:06 +0200, Samuel Thibault wrote:
> 
> >pasha (biblio), le mar. 09 mai 2023 17:01:08 +0200, a ecrit:
> >Add example of 64-bit debugging.
> 
> >Mmm, rather extend the QEMU section of
> >https://darnassus.sceen.net/~hurd-web/microkernel/mach/gnumach/debugging/
> 
> ---
>  microkernel/mach/gnumach/debugging.mdwn | 35 +++++++++++++++++++++++++
>  1 file changed, 35 insertions(+)
> 
> diff --git a/microkernel/mach/gnumach/debugging.mdwn 
> b/microkernel/mach/gnumach/debugging.mdwn
> index a134b618..0e4898be 100644
> --- a/microkernel/mach/gnumach/debugging.mdwn
> +++ b/microkernel/mach/gnumach/debugging.mdwn
> @@ -128,6 +128,41 @@ working directory. For example:
>  
>  ## [[open_issues/debugging_gnumach_startup_qemu_gdb]]
>  
> +## Debug 64-bit gnumach
> +
> +[[build|microkernel/mach/gnumach/building/]] 64-bit gnumach
> +
> +run a spare Hurd vm (prepare for data loss in vm):
> +
> +* `kvm -net user,hostfwd=tcp:127.0.0.1:2222-:22 -net nic,model=e1000 -drive 
> file=$(echo debian-hurd*.img),cache=writeback -m 1G`
> +* `cd gnumach/build`
> +* `scp -P 2222 gnumach.gz user@127.0.0.1:/home/user/`
> +* You may copy `gnumach.gz` (also create new grub entry) or replace using 
> `mv /home/user/gnumach.gz /boot/gnumach-xxx.gz`
> +* Shutdown vm.
> +* Append `console=com0` in boot menu and switch to console mode in qemu. (We 
> have known issues with vga output for 64-bit.)
> +* You may load only required modules for debugging.
> +* `kvm -s -S -net user,hostfwd=tcp:127.0.0.1:2222-:22 -net nic,model=e1000 
> -drive file=$(echo debian-hurd*.img),cache=writeback -m 1G` (note: `-s -S` 
> added.)
> +* `gdb ./gnumach`
> +* `(gdb) target remote :1234`
> +* Press `c` to continue booting.
> +
> +
> +example `/boot/grub/grub.cfg`:
> +
> +    multiboot       /boot/gnumach-1.8-486.gz root=part:2:device:hd0 
> console=com0
> +    ...
> +    module          /hurd/acpi.static acpi \
> +                    --host-priv-port='${host-port}' 
> --device-master-port='${device-port}' \
> +                    --next-task='${fs-task}' \
> +                    '$(acpi-task=task-create)' '$(task-resume)'
> +    module          /hurd/ext2fs.static ext2fs --readonly \
> +                    --multiboot-command-line='${kernel-command-line}' \
> +                    --exec-server-task='${exec-task}' -T typed '${root}' \
> +                    '$(fs-task=task-create)'
> +    module          /lib/ld.so.1 exec /hurd/exec '$(exec-task=task-create)'
> +
> +
> +
>  
>  # Code Inside the Kernel
>  
> -- 
> 2.30.2
> 
> 

-- 
Samuel
---
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