malloc.c

[Dmitry Morozovsky]

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 at woozle:~# file /bin/sh
/bin/sh: ELF 32-bit LSB executable, Intel 80386, version 1 (FreeBSD), 
dynamically linked (uses shared libs), stripped
root at 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 at woozle:~#

The only two are

root at 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 at rinet.ru ***
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