Re: [PULL 16/22] gdbstub: expose api to find registers

[Akihiko Odaki <akihiko.odaki@daynix.com>]

On 2024/01/16 19:48, Alex Bennée wrote:
> Expose an internal API to QEMU to return all the registers for a vCPU.
> The list containing the details required to called gdb_read_register().
> 
> Based-on: <20231025093128.33116-15-akihiko.odaki@daynix.com>
> Cc: Akihiko Odaki <akihiko.odaki@daynix.com>
> Message-Id: <20240103173349.398526-38-alex.bennee@linaro.org>
> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

I'm not for to pull this, "[PULL 17/22] plugins: add an API to read 
registers", and "[PULL 19/22] contrib/plugins: extend execlog to track 
register changes" in the current state. I have only commented the API 
aspect of these patches, but looking at them now, I see something wrong 
with their implementations. I'll add comments to respective patches.

> 
> diff --git a/include/exec/gdbstub.h b/include/exec/gdbstub.h
> index da9ddfe54c5..7bddea8259e 100644
> --- a/include/exec/gdbstub.h
> +++ b/include/exec/gdbstub.h
> @@ -111,6 +111,53 @@ void gdb_feature_builder_end(const GDBFeatureBuilder *builder);
>    */
>   const GDBFeature *gdb_find_static_feature(const char *xmlname);
>   
> +/**
> + * gdb_find_feature() - Find a feature associated with a CPU.
> + * @cpu: The CPU associated with the feature.
> + * @name: The feature's name.
> + *
> + * Return: The feature's number.
> + */
> +int gdb_find_feature(CPUState *cpu, const char *name);

This function is not used.

> +
> +/**
> + * gdb_find_feature_register() - Find a register associated with a CPU.
> + * @cpu: The CPU associated with the register.
> + * @feature: The feature's number returned by gdb_find_feature().
> + * @name: The register's name.
> + *
> + * Return: The register's number.
> + */
> +int gdb_find_feature_register(CPUState *cpu, int feature, const char *name);

This function is also no longer needed.

Regards,
Akihiko Odaki