[Toybox] [PATCH] macOS: target 10.15.

[Rob Landley]

On 6/3/22 11:43, enh wrote:
>     There was a tentative fourth use case: back before Apple switched from bash to
>     zsh I thought they might eventually show an interest in a finished toysh, but
>     they did bash->zsh the same way Ubuntu went bash->dash and Canonical showed a
>     surprisingly adamant refusal to ever admit a mistake. So my previous "might"
>     went from ~20% chance to like 5% tops. (And their "we don't understand what
>     vfork was for" move abandons the embedded space too.)
> 
> don't forget "ps requires root" :-) i struggled to believe that one in 2005, let
> alone 2022!

Because Unix v7's ps read /dev/mem and parsed the kernel structures, then Ken
and Dennis's sequel system (Plan 9) exported an actual synthetic filesystem with
locking and stuff, the Solaris guys copied Plan 9, and Linux was "inspired" by
Solaris to create /proc back in 1992.

https://github.com/mpe/linux-fullhistory/commit/89c09f7fae58

Rob