Re: [PATCH] ld.so: add an --argv0 option

[Mike Frysinger <vapier at gentoo dot org>]

On 23 Apr 2016 14:21, Florian Weimer wrote:
> * Mike Frysinger:
> > Sometimes when you run a program you want the argv[0] string passed to
> > the app to be different than the actual path you used to load it.  We
> > can't do this today with invoking via ld.so which can be limiting --
> > some programs like to inspect their argv[0] and make decisions as to
> > how it should (re)exec itself or helper tools.  For example, clang and
> > gcc both do argv[0] inspection to support relocatable toolchains.
> 
> Interesting idea.  I think it's sufficiently to include this, but it
> needs a ChangeLog entry and a test case.

for the test, seems like i'll have to write a small C file that just
displays its argv, and then another shell script which runs the ldso
against that simple program and checks the output.  unless anyone has
a simpler idea.
-mike

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