[adtools] Re: Two changes required for gcc
- From: Hans-Joerg Frieden <Hans-JoergF@xxxxxxxxxxxxxxxxxxxxxxxxxx>
- To: adtools@xxxxxxxxxxxxx
- Date: Wed, 31 Mar 2010 11:24:25 +0200
On 31.03.2010 11:18, Sebastian Bauer wrote:
What do you mean by 1? Do you mean that gcc recognizes __thread although tls
not yet supported in AmigaOS?
Yes. I recently configured a project that tried to determine whether to
use pthread_setspecific or thread local storage, and since the __thread
keyword was accepted as functional by the compiler, it didn't even try
pthread_setspecific.
I've looked into tls support once in the course of updating the baseline to
gcc 4.4.3 (development is in a separate branch of adtools and not in trunk) as
I think that we need it sooner or later and it is handy for openmp support (I
think). But unfortunately, I was only looking at it :(
Probably, yes. I suppose it could be implemented on top of pthreads, but
I am not 100 % sure how it works. When the thread keyword worked, the
library in question was missing a symbol __tls_get_addr, so I guess
there is a set of functions the c library needs to support which are
internally referenced by gcc. Shouldn't be too difficult.
Unfortunately I also don't have time right now. Between the X-1000
version of AmigaOS and Timberwolf there isn't much time left :-(
Regards,
--
Hans-Joerg Frieden
Now these points of data make a beautiful line,
and we're out of beta, we're releasing on time.
--
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