Re: [PATCHv10 man-pages 5/5] execveat.2: initial man page for execveat(2)

[Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>]

On Sat, Jan 10, 2015 at 08:09:10PM -0600, Eric W. Biederman wrote:
> In implementation /proc/self/exe is a named rather than a numbered file
> descriptor.  Essentially when loading an elf executable the file
> descriptor is duped to the name /proc/self/exe.  The implementation
> otherwise is the same as /proc/self/fd/N.
> 
> The downside of course is that I expect if we were actually to change
> /proc/self/exe from to point at the script instead of the shell some
> piece of software somewhere would come melting down.  I am totally not
> ready to consider that kind of mine field today.

We could add a /proc/self/script that points to the script, and either
is not available or still points to the executable if we are not running
a script.