Re: stat() problem in shared libraries (yes /usr/lib/libc.so is correct)

[Michael F. Brown]

Hi,

Thank you very much for your insight.

changing the ld line to:

gcc -shared -o /lib/libmy_stat.so my_stat.o

fixes the issue.

-Michael F. Brown, Sym API - EMC Corp.

email:  address@hidden

"In theory, there is no difference between theory and practice,
 but in practice, there is."       - Jan L.A. van de Snepscheut

On Thu, 20 Sep 2001, Andreas Jaeger wrote:

> Date: Thu, 20 Sep 2001 19:31:02 +0200
> From: Andreas Jaeger <address@hidden>
> To: Michael F. Brown <address@hidden>
> Cc: address@hidden
> Subject: Re: stat() problem in shared libraries (yes /usr/lib/libc.so is
>     correct)
>
> "Michael F. Brown" <address@hidden> writes:
>
> > Hi,
> >
> > I've read the glibc FAQ as well as searched this lists archives for
> > an answer on this issue.
> >
> > We ship a shared object which uses stat, and on more recent versions
> > of glibc (2.2.2) when running with our library we get the error
> > message:
> >
> > "error while loading shared libraries: /usr/lib/libmy_stat.so:
> > undefined symbol: stat"
> >
> > Yes, /usr/lib/libc.so looks like:
> >
> > /* GNU ld script
> >    Use the shared library, but some functions are only in
> >    the static library, so try that secondarily.  */
> > GROUP ( /lib/libc.so.6 /usr/lib/libc_nonshared.a )
> >
> > This is reproducible on various linux hosts.
> >
> > Here's a sample program and Makefile:
> >
> > ---- Makefile ----
> >
> > all: my_main
> >
> > my_main: my_main.c /lib/libmy_stat.so
> >         gcc -Wall -g -o my_main my_main.c -lmy_stat
> >
> > /lib/libmy_stat.so: my_stat.o
> >         ld -G -dy -o /lib/libmy_stat.so my_stat.o
>
> You should not link on Linux with just ld, use gcc for linking.
>
> Andreas
> --
>  Andreas Jaeger
>   SuSE Labs address@hidden
>    private address@hidden
>     http://www.suse.de/~aj
>