Re: hidden symbol `__divdi3' is referenced by DSO

[Jeff Johnston <jjohnstn at redhat dot com>]

The rpath is also used to tell the linker where to find shared libraries during 
the link.  See the paragraph below.  I know I had to add it to my script that 
builds my shared executables.

`-rpath DIR'
     Add a directory to the runtime library search path.  This is used
     when linking an ELF executable with shared objects.  All `-rpath'
     arguments are concatenated and passed to the runtime linker, which
     uses them to locate shared objects at runtime.  The `-rpath'
     option is also used when locating shared objects which are needed
     by shared objects explicitly included in the link; see the
     description of the `-rpath-link' option.  If `-rpath' is not used
     when linking an ELF executable, the contents of the environment
     variable `LD_RUN_PATH' will be used if it is defined.

-- Jeff J.

Shaun Jackman wrote:
> My problem occurs not at run time, but at link time.
>
> cc -nostdlib -L/home/sjackman/lib/newlib -Wl,-rpath
> /home/sjackman/lib/newlib /home/sjackman/lib/newlib/crt0.o  hello.o 
> -lc -lm -lgcc -o hello
> /usr/bin/ld: hello: hidden symbol `__divdi3' in
> /usr/lib/gcc-lib/i486-linux/3.3.4/libgcc.a(_divdi3.oS) is referenced
> by DSO
> collect2: ld returned 1 exit status
>
> Cheers,
> Shaun
>
>
> On Thu, 02 Dec 2004 14:53:34 -0500, Jeff Johnston <jjohnstn@redhat.com> wrote:
>
> > Works fine for me.
> >
> > It looks like you need an rpath specified.  Try adding:
> >
> > -Wl,-rpath /home/sjackman/lib/newlib
> >
> > -- Jeff J.
> >
> >
> > Shaun Jackman wrote:
> >
> > > When trying to link "Hello, world!" with a native shared newlib
> > > library, I get this hidden symbol error. The same application links
> > > perfectly with -static.
> > >
> > > Thanks in advance for any help you can give.
> > >
> > > Please cc me in your reply. Cheers,
> > > Shaun
> > >
> > > newlib 1.12.0 (CVS 2004-11-26)
> > > gcc 3.3.4
> > >
> > > $ cc -g -O2 -W -Wall -Werror -I/home/sjackman/include/newlib -nostdlib
> > > -L/home/sjackman/lib/newlib /home/sjackman/lib/newlib/crt0.o  hello.c
> > > -lc -lm -lgcc -o hello
> > > /usr/bin/ld: hello: hidden symbol `__divdi3' in
> > > /usr/lib/gcc-lib/i486-linux/3.3.4/libgcc.a(_divdi3.oS) is referenced
> > > by DSO
> > > collect2: ld returned 1 exit status
> > > make: *** [hello] Error 1
> > > $ cc --version | head -1
> > > cc (GCC) 3.3.4 (Debian 1:3.3.4-13)