[TUHS] shared objects in Unix

Henry Bent henry.r.bent at gmail.com
Fri Mar 30 08:01:42 AEST 2018


On 29 March 2018 at 17:37, Paul Winalski <paul.winalski at gmail.com> wrote:

>
> What is the history of shared objects on Unix?  When did they first
> appear, and with what object/executable file format?  The a.out ZMAGIC
> format doesn't seem to support them.  I don't recall if COFF does.
>

IRIX 4 had COFF shared libraries, barely.  The OS included libc_s, libgl_s,
and maybe one or two other things.  They were very difficult and
time-consuming to create, and if you had external dependencies then things
were even worse.

-Henry
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