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Re: [Qemu-devel] [PATCH 0/2] Add gpio_key and use it for ARM virt power

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH 0/2] Add gpio_key and use it for ARM virt power button
Date: Wed, 6 Apr 2016 20:27:48 +0100

On 6 April 2016 at 18:50, Emilio G. Cota <address@hidden> wrote:
> I might be doing something wrong, but aarch64-softmmu @ master only works for 
> me
> after reverting 94f02c5ea94 "ARM: Virt: Use gpio_key for power button". 
> Bisect log
> appended.
> This is what I get when booting aarch64 as per [1]:
> $ aarch64-softmmu/qemu-system-aarch64 -machine virt -cpu cortex-a57 -machine 
> type=virt \
>  -nographic -smp 1 -m 2048 -kernel 
> img/aarch64/aarch64-linux-3.15rc2-buildroot.img  \
> --append "console=ttyAMA0"
> qemu-system-aarch64: Unknown device 'gpio-key' for default sysbus
> Aborted (core dumped)

Your tree isn't building right (this is a dependency bug in our
makefiles somewhere) -- it hasn't built the new object file
with the gpio-key device in it, which means a runtime failure
when the device can't be found. You should be able to fix this
by deleting the aarch64-softmmu/config-devices.mak file from
your build tree and then doing a rebuild.

(One day I may get round to figuring out what happens here.
The oddity is that it doesn't cause problems for an
incremental rebuild, only for a build after a 'make clean'.)

-- PMM

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