Re: mach-o section question
Re: mach-o section question
- Subject: Re: mach-o section question
- From: Army Research Lab <email@hidden>
- Date: Mon, 21 Apr 2008 16:33:33 -0400
- Thread-topic: mach-o section question
On 4/21/08 2:34 PM, "Andrew Myrick" <email@hidden> wrote:
> I'm just not familiar enough with how UUIDs are used to be of much
> help on this. My guess is it doesn't matter too much, as long as you
> aren't trying to load the same binary with different UUIDs. For
> example, in kext land, presume you have 2 kexts, A and B, where B
> depends on A. In the following scenario:
>
> 1) Load kext A
> 2) Change kext A on disk
> 3) Load kext B
>
> the load will fail because we'll detect the UUID change and flag an
> error. I would expect that userspace has some similar mechanism,
> though probably much more complex :)
OK, so would it be better to use the MD5 hash for the UUID? Its not perfect
(collisions can happen), but it will detect the code has changed...
Thanks,
Cem Karan
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