Re: Feature request: exec self for NOMMU.
From: Rob Landley
Date: Wed Dec 27 2006 - 16:05:01 EST
On Wednesday 27 December 2006 1:35 pm, Denis Vlasenko wrote:
> This solves chroot problem. How to find path-to-yourself reliably
> (for one, without using /proc/self/exe) is not obvious to me.
Been there, done that. Both my toybox and Firmware Linux projects do this.
In FWL it's line 115 of this file:
It's essentially the logic of the command line "which" utility applied to
argv. If argv has a relative or absolute path, then it's vs cwd (this
has to happen when you first run the program, before you cd). If argv has
no path then look at $PATH.
"Perfection is reached, not when there is no longer anything to add, but
when there is no longer anything to take away." - Antoine de Saint-Exupery
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