Hello Stafford,
On 18.08.24 09:14, Stafford Horne wrote:
> On Wed, Aug 14, 2024 at 06:14:35PM +0200, Ahmad Fatoum wrote:
>> The newest toolchain bump breaks OpenRISC start-up under QEMU: The console is
>> now completely silent. Steps to reproduce the hang:
>>
>> CONTAINER_GCC13=bdfdd5effcc169ebf8a9df2f1a5956ef34549682f78b450a97aceea2afd76f7a
>> CONTAINER_GCC14=fa35adeae1ab49b4dc09fc3bf4d68f92541a0d1f41e0df91a4879fd331e4b592
>> CONTAINER_BASE=ghcr.io/barebox/barebox/barebox-ci@sha256:fa35adeae1a
>>
>> export CONTAINER=${CONTAINER_BASE}@sha256:${CONTAINER_GCC14}
>> export LG_BUILDDIR=build-openrisc
>> ./scripts/container.sh ./MAKEALL -a openrisc -O $LG_BUILDDIR
>> ./scripts/container.sh pytest --lg-env test/openrisc/generic_defconfig.yaml \
>> --interactive
>>
>> Running the same steps, but with the older toolchain boots successfully:
>>
>> export CONTAINER=${CONTAINER_BASE}@sha256:${CONTAINER_GCC13}
>> export LG_BUILDDIR=build-openrisc
>> git checkout v2024.08.0
>> ./scripts/container.sh ./MAKEALL -a openrisc -O $LG_BUILDDIR
>> ./scripts/container.sh pytest --lg-env test/openrisc/generic_defconfig.yaml \
>> --interactive
>>
>> The hang happens somewhere before the jump to _start in arch/openrisc/cpu/start.S.
>> Until that's fixed, let's pin the OpenRISC GCC version to the old v13.1.0.
>>
>> Cc: Stafford Horne <shorne@xxxxxxxxx>
>> Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
>> ---
>> @Stafford, do you have an idea what could cause this?
>
> Hi I am not sure about this, no new changes in the or1k-linux toolchain that I
> know about. I will try to reproduce and see what is going wrong.
That would be great, thanks! I had a typo in the instructions above,
CONTAINER_BASE is not supposed to have @sha256:fa35adeae1a at the end.
I tried to debug this by importing _emergency_putc from the kernel and
seeing where it's getting stuck. I tried on the working case (GCC13) and
calling _emergency_putc before _start doesn't work. Unfortunately, that's
where it hangs (or maybe, code isn't executed at all?) for GCC14 so that
didn't help me narrow down the issue.
Cheers,
Ahmad
>
> -Stafford
>
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