System V Release 4.0 and #!
Charles Anderson
cander at unisoft.UUCP
Thu Jun 28 04:01:19 AEST 1990
>From article <12917 at cbmvax.commodore.com>, by ag at cbmvax.commodore.com (Keith Gabryelski):
> There is a new exec module in the V.4 kernel that allows for different
> types of exec file formats. This is how coff, elf, and shell script
> execs are handled in the kernel, now. To implement a new exec file
> format one chooses a suitable magic number, links in a few routines of
> routines [maybe FOOexec and FOOcore], updates the appropriate
> structure array [execsw], and then figures out what they broke. :-)
Just to pick nits :-), the linking of modules and the creation of
execsw[] is all done automatically by cunix(1M). You do however have
to update the system file to tell cunix to include your new exec module
in the kernel.
--
Charles.
{sun, ucbvax, pyramid, uunet}!unisoft!cander
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