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Date:   Tue, 22 Nov 2022 17:51:12 -0500
From:   Steven Rostedt <rostedt@goodmis.org>
To:     Qing Zhang <zhangqing@loongson.cn>
Cc:     Huacai Chen <chenhuacai@kernel.org>,
        Ingo Molnar <mingo@redhat.com>, loongarch@lists.linux.dev,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH v8 RESEND 2/9] LoongArch/ftrace: Add recordmcount
 support
Message-ID: <20221122175112.513531bd@gandalf.local.home>
In-Reply-To: <20221116082338.5145-3-zhangqing@loongson.cn>
References: <20221116082338.5145-1-zhangqing@loongson.cn>
        <20221116082338.5145-3-zhangqing@loongson.cn>
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On Wed, 16 Nov 2022 16:23:31 +0800
Qing Zhang <zhangqing@loongson.cn> wrote:

> Recordmcount utility under scripts is run, after compiling each object,
> to find out all the locations of calling _mcount() and put them into
> specific seciton named __mcount_loc.
> Then linker collects all such information into a table in the kernel image
> (between __start_mcount_loc and __stop_mcount_loc) for later use by ftrace.
> 
> This patch adds loongarch specific definitions to identify such locations.
> On loongarch, only C version is used to build the kernel now that
> CONFIG_HAVE_C_RECORDMCOUNT is on.
> 
> Signed-off-by: Qing Zhang <zhangqing@loongson.cn>
> ---
>  arch/loongarch/Kconfig |  2 ++
>  scripts/recordmcount.c | 23 +++++++++++++++++++++++
>  2 files changed, 25 insertions(+)
> 

Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org>

-- Steve