On Monday 02 March 2009 09:23:59 Michael Schnell wrote: > > TLS "Thread Local Storage" is the ability to say > > > > int __thread i; > > I see ! Does using TLS create fast code or will there be a library > call done for any access to "i" ?
i dont know of any port that implements TLS via a library call, but how each port does TLS is highly port specific > When I was thinking about the multithreaded application I am planning, I > found that I need a thread to know some unique ID. (I'll have multiple > threads that use the same code, so sometime they need to know which one > they are.). > > I see that this can be done with TLS. yes > Do you suggest that TLS is not available in a uCLinux system ? TLS has nothing to do with mmu or no-mmu. they are special relocations that are generated/resolved by the toolchain. > Is there any other way to have a unique thread ID that the thread can > _easily_and_fast_ access ? there is probably always a way to hack something together, but TLS is the only "portable" solution. -mike
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ uClinux-dev mailing list uClinux-dev@uclinux.org http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by uclinux-dev@uclinux.org To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
