Subject: Re: 'prebind' implementation (was Re: HEADS UP: migration to fully dynamic linked "base" system)
To: Jason R Thorpe <>
From: Andrew Brown <>
List: current-users
Date: 08/27/2002 23:08:57
> > yes, but is foo to expect that libc will be at 0x48056000 every time
> > foo is executed?
> > 
> > i have actually managed to get mine to load at 0xbdb48000 tonight.  :)
>Oh, just because you're hacking on UVM :-)

zakly.  :)

>For prebinding to work, yes, you expect it to be loaded at the same place
>each time, and encode them as doing so.  And prebinding would use a fixed
>mapping at the specified location in order to make that work.

how about if, instead of using fixed, it specified a hint and "bailed"
if the returned address wasn't what it wanted?  even the mmap(2) man
page says that the use of MAP_FIXED is discouraged...

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