Re: emitting relocation info bug

[Alan Modra]

On Mon, Apr 15, 2002 at 06:53:57AM -0700, Jeffrey Blank wrote:
> On my Red Hat 7.2 system, ld is writing the wrong
> address for a symbol only when asked to emit
> relocation information (with the -q) and the
> executable it creates segfaults during run.  Compiling
> the SRPM for wu-ftpd will demonstrate this.  

I'm going to guess that you're trying to use -q with a dynamically
linked executable on x86.

Don't do that.  x86 is a REL target (reloc addends are stored in the
instruction), and an executable has the final values written to
where reloc addends are stored.  These are _not_ the right numbers
for the relocs, and ld.so will merrily trash your executable when
it processes the relocs.

I guess the linker should refuse to accept -q in such cases.

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre