From: Richard Henderson <richard.henderson@linaro.org>
To: "Philippe Mathieu-Daudé" <philmd@linaro.org>, qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH v3 19/19] qom: Require TypeInfo::class_data points to const data
Date: Wed, 12 Feb 2025 14:11:03 -0800 [thread overview]
Message-ID: <40b1b0b1-e019-400b-9d06-079ca472b7e1@linaro.org> (raw)
In-Reply-To: <20250212213249.45574-20-philmd@linaro.org>
On 2/12/25 13:32, Philippe Mathieu-Daudé wrote:
> All TypeInfo::class_data point to const data.
> Enforce that in the structure, so future class_data
> stays in .rodata.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
> include/qom/object.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/qom/object.h b/include/qom/object.h
> index 1d5b0337242..31adc2ef174 100644
> --- a/include/qom/object.h
> +++ b/include/qom/object.h
> @@ -488,7 +488,7 @@ struct TypeInfo
>
> void (*class_init)(ObjectClass *klass, const void *data);
> void (*class_base_init)(ObjectClass *klass, const void *data);
> - const void *class_data;
> + const void *const class_data;
>
> const InterfaceInfo *interfaces;
> };
This doesn't do what you think it does.
I'm surprised it compiles.
r~
next prev parent reply other threads:[~2025-02-12 22:11 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-12 21:32 [PATCH v3 00/19] qom: Constify class_data Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 01/19] hw: Declare various const data as 'const' Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 02/19] hw: Make class data 'const' Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 03/19] target/i386: Constify X86CPUModel uses Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 04/19] target/sparc: Constify SPARCCPUClass::cpu_def Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 05/19] target/xtensa: Finalize config in xtensa_register_core() Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 06/19] target/riscv: Declare RISCVCPUClass::misa_mxl_max as RISCVMXL Philippe Mathieu-Daudé
2025-02-17 5:08 ` Alistair Francis
2025-02-12 21:32 ` [PATCH v3 07/19] target/riscv: Convert misa_mxl_max using GLib macros Philippe Mathieu-Daudé
2025-02-17 5:13 ` Alistair Francis
2025-02-12 21:32 ` [PATCH v3 08/19] qom: Have class_base_init() take a const data argument Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 09/19] qom: Have class_init() " Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 10/19] qom: Constify TypeInfo::class_data Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 11/19] qom: Constify InterfaceInfo[] interfaces Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 12/19] hw/virtio/virtio-pci: Always allocate QOM type base_name Philippe Mathieu-Daudé
2025-02-12 22:06 ` Richard Henderson
2025-02-12 21:32 ` [PATCH v3 13/19] hw/virtio/virtio-pci: Assert before registering QOM types Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 14/19] hw/virtio/virtio-pci: Do not access base_type_info.name directly Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 15/19] hw/virtio/virtio-pci: Constify base_type_info Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 16/19] hw/virtio/virtio-pci: Constify generic_type_info Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 17/19] hw/virtio/virtio-pci: Reduce generic_type_info scope Philippe Mathieu-Daudé
2025-02-12 21:32 ` [PATCH v3 18/19] hw: Constify various TypeInfo and associated structures Philippe Mathieu-Daudé
2025-02-12 22:10 ` Richard Henderson
2025-02-12 21:32 ` [PATCH v3 19/19] qom: Require TypeInfo::class_data points to const data Philippe Mathieu-Daudé
2025-02-12 22:11 ` Richard Henderson [this message]
2025-02-18 16:51 ` Philippe Mathieu-Daudé
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