linux-kernel - Re: [PATCH v4 3/3] tools/power/acpi/acpidbg: Add multi-commands support in batch mode

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Message-ID: <3470775.ryIxlEgpGv@vostro.rjw.lan>
Date:	Wed, 17 Aug 2016 02:30:50 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Lv Zheng <lv.zheng@...el.com>
Cc:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Len Brown <len.brown@...el.com>, Lv Zheng <zetalog@...il.com>,
	linux-kernel@...r.kernel.org, linux-acpi@...r.kernel.org
Subject: Re: [PATCH v4 3/3] tools/power/acpi/acpidbg: Add multi-commands support in batch mode

On Tuesday, July 26, 2016 07:01:45 PM Lv Zheng wrote:
> This patch adds multi-commands support for the batch mode. The same mode
> can be seen in acpiexec.
> 
> However people may think this is not useful for an in-kernel debugger,
> because the in-kernel debugger is always running, never exits. So we can
> run another command by running another acpidbg batch mode instance.
> 
> But this mode should still be useful for acpidbg. The reason is: when the
> in-kernel debugger has entered the single-stepping mode, ending acpidbg
> (which closes the debugger IO interface) will lead to the end of the
> single-stepping mode.
> 
> So we need the acpidbg multi-commands batch mode in order to execute
> multiple single-stepping mode commands in scripts.

An example would be really useful here IMO.

Thanks,
Rafael