Re: Ugly Q, I admit

it turns out not to be very difficult at all.  i don't think much of it saw 
light.
you'll find that 5l supports it but the runtime code is not in the distribution.
i did 8l and el too but once again it never got out.  i'd be willing to do some
work on this if come out of retirement (the pasadena doo-dah festival
was more fun than bit-bashing).

----- Original Message ----- 
From: "Russ Cox" <rsc@xxxxxxxxxxxxxxxxxxx>
To: <9fans@xxxxxxxxxxx>
Sent: Tuesday, November 26, 2002 4:00 PM
Subject: Re: [9fans] Ugly Q, I admit


> > Does this imply that it would not be difficult to implement dynamic linking 
> > natively in Plan 9?
> 
> the difficult part of dynamic linking is more in the compiler
> and linker than in the kernel proper.  since i'm just running
> already-created linux binaries, there's hardly any trouble.
> 
> the linuxemu i posted has an "mmap" function that allocates
> memory and reads the whole file into it.  not quite the most
> efficient way to do it.  i wrote a real mmap for the kernel at the
> time, but it didn't seem worth keeping.  the user-side interface
> for the kernel mmap is commented out.
> 
>