Date: Mon, 19 Jun 2006 03:26:35 +0400 (MSD) From: Dmitry Morozovsky <marck@rinet.ru> To: John Baldwin <jhb@freebsd.org> Cc: Beech Rintoul <freebsd@alaskaparadise.com>, freebsd-current@freebsd.org Subject: Re: malloc.c Message-ID: <20060619032442.M13558@woozle.rinet.ru> In-Reply-To: <200606151246.08363.jhb@freebsd.org> References: <200606141704.30667.freebsd@alaskaparadise.com> <200606151246.08363.jhb@freebsd.org>
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On Thu, 15 Jun 2006, John Baldwin wrote:
JB> > I forgot to define NO_MALLOC_EXTRAS in malloc.c on one of my test machines
JB> and
JB> > I'm taking a noticeable performance hit. How do I just rebuild libc without
JB> > rebuilding userland? This box is only 500 MHz and a system rebuild takes
JB> > quite a while.
JB>
JB> cd /usr/src/lib/libc
JB> make clean
JB> make cleandir
JB> make obj
JB> make depend
JB> make all
JB> make install
JB>
JB> Something like that should do it. You might have to rebuild any statically
JB> linked binaries as well (/sbin/init and /bin/sh) but fixing libc should
JB> probably solve most of your problems.
Well, at least on RELENG_6 /bin/sh is dynamically linked:
root@woozle:~# file /bin/sh
/bin/sh: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD),
dynamically linked (uses shared libs), stripped
root@woozle:~# ldd /bin/sh
/bin/sh:
libedit.so.5 => /lib/libedit.so.5 (0x28090000)
libncurses.so.6 => /lib/libncurses.so.6 (0x280a5000)
libc.so.6 => /lib/libc.so.6 (0x280e6000)
root@woozle:~#
The only two are
root@woozle:~# file /bin/* /sbin/* | grep 'statically linked'
/sbin/devd: ELF 32-bit LSB executable, Intel 80386, version 1
(FreeBSD), statically linked, stripped
/sbin/init: ELF 32-bit LSB executable, Intel 80386, version 1
(FreeBSD), statically linked, stripped
Sincerely,
D.Marck [DM5020, MCK-RIPE, DM3-RIPN]
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*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
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