Re: Symbols relocatable using dlopen?

[Alan Modra <amodra at bigpond dot net dot au>]

On Fri, Aug 28, 2009 at 03:04:56PM +0300, Marcus Clyne wrote:
> my_print isn't a dynamic symbol in the program.
> Am I right in understanding that you mean that if I make the symbol  
> dynamic in the main program, then it will be relocatable in the shared  
> object when it's loaded, but if it's static, then it won't be?

Yes.  If my_print is not dynamic, it is not available to the dynamic
loader to resolve references.

> I've looked in the man pages and online for the syntax for  
> --dynamic-list files, but haven't found it yet.  Do you know what the  
> format for the dynamic list files is?

The ld info doc says: "The format of the dynamic list is the same as
the version node without scope and node name."  Also see examples in
ld/testsuite/ld-elf.

-- 
Alan Modra
Australia Development Lab, IBM