[DGD] FLS

[Raymond Jennings]

Of note, TLSD in kotaka (/home/System/sys/tlsd.c) actually extends the TLS
concept.  It uses a provided slot from the kernel library and stores a
mapping in that slot.

That mapping is layered first by subsystem/user and then by string
namespace, not only allowing each user/subsystem to have named variables in
it, but also so that TLSD tiself can enforce access controls to keep
different modules from tampering or if necessary even peeking at each
other's data.

TLSD also allows one module to grant read/readwrite access to other modules.

is this the sort of thing you were talking about?

On Wed, Oct 4, 2017 at 11:46 AM, Raymond Jennings <shentino at gmail.com>
wrote:

> Oh, you mean using the stack/call trace as a stash-bin for variables?
>
> If so, the kernel library already implements that.
>
> The magic is that array and mapping and lwo arguments are passed by
> reference, so if you can get access to it by using call_trace(), then the
> byref semantics let you tinker with the actual array.
>
> It's pretty neat way to keep temporary stuff around and is VERY
> compartmentalized and can keep your codebase tidy
>
>
> On Wed, Oct 4, 2017 at 11:34 AM, Blain <blain20 at gmail.com> wrote:
>
>> ({ objname, progname, function,
>>    line, extern, FLS, arg1,
>>    ..., argn })
>>
>>
>>
>> On Oct 4, 2017 13:31, "Raymond Jennings" <shentino at gmail.com> wrote:
>>
>> > That sounds interesting but...I'm completely confused.
>> >
>> > Could you explain exactly what "frame-local storage mapping" is?
>> >
>> > On Wed, Oct 4, 2017 at 10:34 AM, Blain <blain20 at gmail.com> wrote:
>> >
>> > > Was there any interest in implementing a Frame-local storage mapping
>> in
>> > > DGD?  I'm still trying to decide if it's doable at the lib level. So
>> day
>> > > I've got nothing promising.
>> > > ____________________________________________
>> > > https://mail.dworkin.nl/mailman/listinfo/dgd
>> > ____________________________________________
>> > https://mail.dworkin.nl/mailman/listinfo/dgd
>> ____________________________________________
>> https://mail.dworkin.nl/mailman/listinfo/dgd
>
>
>