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Re: libmudflap and emutls question
On Wed, Jan 07, 2009 at 11:38:55AM +0100, Paolo Bonzini wrote:
>
> > Which version of gcc did you use? gcc 4.1 (maybe and 4.2) will report
> > error. But gcc 4.3 compiles OK. I tested using x86_64 native gcc from
> > Debian unstable. __emutls_get_address is defined in libgcc even the
> > target has real TLS.
>
> Uff... not my day. I used 4.2 (emutls was posted in 4.2 time but
> committed in 4.3 only). But I didn't think of the simplest solution:
> use greps together with strings(1): "strings ./conftest | grep
> __emutls_get_address".
I'd say much better would be just to grep assembly.
See e.g. libffi/configure.ac's libffi_cv_hidden_visibility_attribute test.
Jakub