Re: bash cores if nscd disabled on Solaris LDAP sasl/gssapi client

[Serge Dussud]

Hi Chet,

there've been follow-up discussions and reviews here with our linker 
folks (see [1] for some details on the bug that was open to capture 
those) and consensus is that best approach is to not compile with bash's 
own malloc routines.
Indeed, ld(1)'s -z interpose option is a rather big hammer, as it 
establishes that the application can interpose on *all* of the symbols 
that it offers, rather than just the few related to malloc.

Hence, my question to you is: are there any real benefit these days of 
using bash's own malloc function rather than the one from the system ? 
or, otherwise said, what do bash lose when it's compiled with option 
--without-bash-malloc ?

TIA,
Serge



[1] http://bugs.opensolaris.org/view_bug.do?bug_id=6778453

On 10/30/08 08:26 PM, Chet Ramey wrote:
> > ah OK, so I guess I need to work on a customized patched for 3.2 then.
> > Any ideas yet of what the exact change will be in configure.bin so that 
> > I can apply to same in our deliveries ?
>
> *** ../bash-3.2-patched/configure.in    2007-12-14 21:12:29.000000000 -0500
> --- configure.in        2008-10-23 09:10:57.000000000 -0400
> ***************
> *** 992,997 ****
> --- 1009,1017 ----
>   sco3.2*)      LOCAL_CFLAGS=-DMUST_UNBLOCK_CHLD ;;
>   sunos4*)      LOCAL_CFLAGS=-DSunOS4 ;;
>   solaris2.5*)  LOCAL_CFLAGS="-DSunOS5 -DSOLARIS" ;;
> + solaris2.8*)  LOCAL_CFLAGS=-DSOLARIS LOCAL_LDFLAGS='-z interpose' ;;
> + solaris2.9*)  LOCAL_CFLAGS=-DSOLARIS LOCAL_LDFLAGS='-z interpose' ;;
> + solaris2.10*) LOCAL_CFLAGS=-DSOLARIS LOCAL_LDFLAGS='-z interpose' ;;
>   solaris2*)    LOCAL_CFLAGS=-DSOLARIS ;;
>   lynxos*)      LOCAL_CFLAGS=-DRECYCLES_PIDS ;;
>   linux*)               LOCAL_LDFLAGS=-rdynamic          # allow dynamic loading
>
> > Also, do you or would you have a bug # for reference ?
>
> Sorry, I don't.
>
> Chet