[lldb-dev] ASLR disabled by default - thoughts?
colin at codeplay.com
Fri Aug 15 01:00:00 PDT 2014
I'd agree with the default behavior being off and the command being
changed to an enable style. All targets we have worked with certainly
default to off, or don't have the feature at all.
On 15/08/2014 01:45, Eric Christopher wrote:
> I believe that disabling by default would match the gdb behavior yes?
> If nothing else, yes, I'm a fan of this :)
> On Thu Aug 14 2014 at 5:30:52 PM Todd Fiala <tfiala at google.com
> <mailto:tfiala at google.com>> wrote:
> Hey all,
> Regarding this bug:
> We've been discussing the idea of having ASLR disabled by default
> when launching processes within lldb. Currently it looks like the
> default behavior is to have it enabled, and require explicitly
> disabling to get that behavior for the process.
> It seems like it might make more sense to have it disabled by
> default - that way code references would likely be static across
> debugger runs, which seems to be more what we want when tracking
> down issues across code runs.
> Any thoughts on this?
> The counterargument I could make for changing it would be (aside
> from legacy compatibility issues perhaps on the MacOSX/iOS side) -
> taking the exe out of its native state on the OS. If a bug is
> ASLR sensitive, the user might miss it. And so behavior in the
> debugger could differ from the exe in its native state. Not sure
> how relevant that is for the majority of usages, though.
> I'll be fixing the fact that Linux is ignoring this altogether.
> But while I'm in there, I could flip the default if we wanted to
> do it. If not globally, we'd probably pursue defaulting it on
> Linux (and Ed seems to like it for FreeBSD as well, so maybe for
> not Apple in that case?)
> Todd Fiala | Software Engineer | tfiala at google.com
> <mailto:tfiala at google.com> | 650-943-3180
> lldb-dev mailing list
> lldb-dev at cs.uiuc.edu <mailto:lldb-dev at cs.uiuc.edu>
> lldb-dev mailing list
> lldb-dev at cs.uiuc.edu
- Colin Riley
Games Technology Director
Codeplay Software Ltd
45 York Place, Edinburgh, EH1 3HP
Tel: 0131 466 0503
Fax: 0131 557 6600
This email and any attachments may contain confidential and /or privileged information and is for use by the addressee only. If you are not the intended recipient, please notify Codeplay Software Ltd immediately and delete the message from your computer. You may not copy or forward it,or use or disclose its contents to any other person. Any views or other information in this message which do not relate to our business are not authorized by Codeplay software Ltd, nor does this message form part of any contract unless so stated.
As internet communications are capable of data corruption Codeplay Software Ltd does not accept any responsibility for any changes made to this message after it was sent. Please note that Codeplay Software Ltd does not accept any liability or responsibility for viruses and it is your responsibility to scan any attachments.
Company registered in England and Wales, number: 04567874
Registered office: 81 Linkfield Street, Redhill RH1 6BY
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the lldb-dev