On Wed, Jun 13, 2012 at 11:07 AM, Jakub Jelinek <jakub@xxxxxxxxxx> wrote:
> On Wed, Jun 13, 2012 at 11:03:01AM +0100, Hans Wennborg wrote:
>> I have a question about the semantics of the tls_model attribute in GCC.
>>
>> For code such as this:
>>
>> static __thread int __attribute((tls_model("global-dynamic"))) x;
>> int *f() { return &x; }
>>
>> GCC will generate code using the global-dynamic model, also when
>> compiled without -fpic.
>
> That is correct, you've asked for it, therefore you get what you've asked
> for.
Are there any known examples of code that depends on this behavior?
I like the "you get what you asked for" semantics, I'm just trying to
figure out if there are more reasons.
Thanks,
Hans
