Re: [PATCH v2 7/8] mips: allow compiling out CONFIG_MIPS_ITU

[BALATON Zoltan]

On Wed, 7 Feb 2024, Paolo Bonzini wrote:
> itc_reconfigure() is referenced from TCG, provide a stub if needed.
> This makes it possible to build a QEMU binary that only includes
> boards without a CPS device (only Malta and Boston create one).
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> hw/mips/mips_itu-stub.c | 26 ++++++++++++++++++++++++++
> hw/mips/meson.build     |  1 +
> 2 files changed, 27 insertions(+)
> create mode 100644 hw/mips/mips_itu-stub.c
>
> diff --git a/hw/mips/mips_itu-stub.c b/hw/mips/mips_itu-stub.c
> new file mode 100644
> index 00000000000..4cc82b8461f
> --- /dev/null
> +++ b/hw/mips/mips_itu-stub.c
> @@ -0,0 +1,26 @@
> +/*
> + * Inter-Thread Communication Unit emulation.
> + *
> + * Copyright (c) 2016 Imagination Technologies
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "hw/misc/mips_itu.h"
> +
> +void itc_reconfigure(MIPSITUState *tag)
> +{
> +    abort();

Isn't g_assert_not_reached() preferred now for it giving better 
dignostics? But I don't know, just asking.

Regards,
BALATON Zoltan

> +}
> diff --git a/hw/mips/meson.build b/hw/mips/meson.build
> index f06d88f3430..2b1b96147a6 100644
> --- a/hw/mips/meson.build
> +++ b/hw/mips/meson.build
> @@ -4,6 +4,7 @@ mips_ss.add(when: 'CONFIG_FW_CFG_MIPS', if_true: 
> files('fw_cfg.c'))
> mips_ss.add(when: 'CONFIG_LOONGSON3V', if_true: files('loongson3_bootp.c', 
> 'loongson3_virt.c'))
> mips_ss.add(when: 'CONFIG_MALTA', if_true: files('malta.c'))
> mips_ss.add(when: 'CONFIG_MIPS_CPS', if_true: files('cps.c'))
> +mips_ss.add(when: 'CONFIG_MIPS_ITU', if_false: files('mips_itu-stub.c'))
>
> if 'CONFIG_TCG' in config_all_accel
> mips_ss.add(when: 'CONFIG_JAZZ', if_true: files('jazz.c'))