Re: Another shared lib question
On Sat, 8 Mar 1997, Walter L. Preuninger II wrote:
> I have been reading the gcc-howto and the elf-howto... and have made my
> first shared library. My question is: does the code have to be
> rewritten/redesigned to take care of any reentrantcy problems? I have a
> feeling that globals/statics are bad news. Am I right?
>
> For Example:
> program a calls foo
> foo is about to return x to a when
> program b calls foo, setting x to something else
>
> Does this make sense?
Well, if you do not use statics or globals you have no re-entrancy
problems. It is also likely that Linux does NOT use shared data segments,
as the standard library is a shared library and it contains many globals.
This is probably a Good Thing (TM) shared data segments are usually
trouble.
Jason
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