linux-kernel - Re: [PATCH v2 16/29] ktap: add amalgamation build(kernel/trace/ktap/amalg.c)

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Message-ID: <CAGdX0WErzdGZ_yZnWaHNbzHzxSHOWYyKJoQTKCgJBpMw_zR1cQ@mail.gmail.com>
Date:	Mon, 31 Mar 2014 11:22:13 +0800
From:	Jovi Zhangwei <jovi.zhangwei@...il.com>
To:	Li Zefan <lizefan@...wei.com>
Cc:	Ingo Molnar <mingo@...hat.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Andi Kleen <andi@...stfloor.org>
Subject: Re: [PATCH v2 16/29] ktap: add amalgamation build(kernel/trace/ktap/amalg.c)

On Mon, Mar 31, 2014 at 10:17 AM, Li Zefan <lizefan@...wei.com> wrote:
> On 2014/3/28 22:45, Jovi Zhangwei wrote:
>> This compiles the ktapvm as one huge C file and allows
>> GCC to generate faster and shorter code.
>>
>> No amalgamation build in x86_64:
>> ktapvm.ko: 3.1M
>>
>> amalgamation build in x86_64:
>> ktapvm.ko: 1.1M
>>
>> User can set use amalgamation build or not in Makefile.
>>
>> (Need to analyze further why have so big differences)
>>
>
> Let's drop this patch for now to make the patchset smaller ?
>
Sure, I will analyze the size difference and find the root cause offline.

Thanks for this suggestion.

Jovi.
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