User-agent: Mozilla Thunderbird 1.0.2 (Windows/20050317)
Alexei Kosut wrote:
I don't believe thread_set_user_ldt is exposed via any user-callable
function. If you need this functionality via a supported API, I'd
suggest filing a bug at <http://bugreport.apple.com/> or contacting DTS.
Thanks - I've just logged Radar #4155117.
Just FYI, this, or a similar function is available in every other x86
UNIX variant that I'm aware of.
It looks like the function goes through the machdep call table
defined in osfmk/i386/machdep_call.c, and there's an exported kernel
symbol for this table - but again, the table doesn't appear to be
accessible from libSystem, so I'm not sure how user code can access
it. Also, is there any assurance that the machdep call table order
will remain the same across different versions of darwin?
Absolutely none. There is no guarantee of compatibility at the
syscall level between versions of Darwin.
If you want to try calling an unsupported machdep call, you can find
examples of how to do it by looking for callers of the other
functions defined in machdep_call.c. For example, the x86
implementation of pthread_set_self (in Libc) invokes the
thread_fast_set_cthread_self call.
On the off chance that this isn't added as a feature of future releases,
would it be possible as an alternative to call the function via a KEXT
somehow?
Thanks,
-Gav
--
Gavriel State
email@hidden
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-x86 mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/darwin-x86/email@hidden
