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Date:	Mon, 7 May 2012 19:01:13 +0800
From:	Changbin Du <changbin.du@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: HELP: I don't understand why buid composite gadgets code into one file

usb gadget code "zero.c" writes:
/*
* Kbuild is not very cooperative with respect to linking separately
* compiled library objects into one module. So for now we won't use
* separate compilation ... ensuring init/exit sections work to shrink
* the runtime footprint, and giving us at least some parts of what
* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
*/
#include "composite.c"
#include "usbstring.c"
#include "config.c"
#include "epautoconf.c"

#include "f_sourcesink.c"
#include "f_loopback.c"
------------------------------------------------------------------
I don't understand the meaning of "ensuring init/exit sections work to
shrink the runtime footprint" . Can anyone help me? thanks!
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