Re: [Qemu-devel] How to use the 'canon-a1100' machine?

[Thomas Huth <thuth@redhat.com>]

On 2018-11-06 11:32, Peter Maydell wrote:
> On 6 November 2018 at 09:40, Thomas Huth <thuth@redhat.com> wrote:
>>
>>  Hi,
>>
>> does anybody know whether the "canon-a1100" machine in QEMU is still
>> usable, or rather how it can be used at all?
>>
>> According to
>> http://lists.infradead.org/pipermail/barebox/2014-July/020327.html there
>> should be support for "-serial stdio" and on
>> https://lists.gnu.org/archive/html/qemu-devel/2013-10/msg02969.html
>> there is a link to a firmware image ... but when I try to use it, there
>> is simply no output on stdio...
>>
>> Is there a way this machine can still be tested in QEMU?
> 
> I have an image in my test set:
> $ ~/test-images/digic/runme ./build/x86/arm-softmmu/qemu-system-arm
> Switch to console [cs0]
> 
> 
> barebox 2013.12.0-00160-g2e82c4a #507 Thu Dec 12 12:42:43 MSK 2013
> 
> 
> Board: Canon PowerShot A1100 IS
> digic-gpio c0220000.gpio: probed gpiochip-1 with base 0
> cfi_flash f8000000.flash: found cfi flash at f8000000, size 4194304
> malloc space: 0x00100000 -> 0x002fffff (size 2 MiB)
> Open /dev/env0 No such file or directory
> no valid environment found on /dev/env0. Using default environment
> running /env/bin/init...
> canon> /
> 
> Command line is:
> 
> ${QEMU} \
>   -M canon-a1100 -serial stdio -display none \
>   --machine firmware="$TESTDIR"/canon-a1100-rom1.bin
> 
> filename suggests that's the same firmware image you link to?
> 
> $ md5sum ~/test-images/digic/canon-a1100-rom1.bin
> 66e76691cbd8b140549c878ae3849147

Thanks for the hint! My image had a different md5sum, so I think
it's just a bad version that I've downloaded. I've finally also
managed to compile barebox on my own with these steps:

tar -xaf barebox-....tar.bz2
cd barebox-...
cp ./arch/arm/configs/canon-a1100_defconfig .config
make CROSS_PREFIX=arm-linux-gnu- ARCH=arm CC=arm-linux-gnu-gcc \
 LD=arm-linux-gnu-ld OBJCOPY=arm-linux-gnu-objcopy olddefconfig
make CROSS_PREFIX=arm-linux-gnu- ARCH=arm CC=arm-linux-gnu-gcc \
 LD=arm-linux-gnu-ld OBJCOPY=arm-linux-gnu-objcopy -j8

And that version indeed prints some output via its emulated serial
console to stdio :-)

CC-ing some "tests/docker" people in case somebody wants to turn
that into a docker-based test, too...

 Thomas