Compiling gcc with -mcmodel=large fails

[Andrew Haley]

On 07/03/2012 02:54 PM, Adrian Smith wrote:
> On 3 July 2012 14:54, Andrew Haley <aph@redhat.com> wrote:
>>
>> On 07/03/2012 01:53 PM, Adrian Smith wrote:
>>> I'm sort-of worried by the "/32/" in that path there. Do I have
>>> to specify something to make sure I'm building a 64-bit compiler? I
>>> assume not, as my OS is 64-bit, the installed gcc which will be used
>>> to build the first phase of bootstrapping is 64-bit, and the compiler
>>> I built which worked outputted a 64-bit executable (at least according
>>> to "file").
>>
>> It's applying -mcmodel=medium to the 32-bit build.
>>
>> --disable-multilib
> 
> Thanks for the response, that fixed it!
> 
> Now I run into
> http://gcc.gnu.org/ml/gcc-help/2012-02/msg00207.html
> 
> which seems to be
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46250
> 
> So I think, from what I gather, this prevents gcc from being compiled
> (or the libraries at least), therefore it's not possible to compile a
> compiler capable of compiling programs generating >2GB executables, at
> this time?

It certainly looks like there are a lot of problems with the large
memory model.  These can be fixed, but right now I'm not sure I'd
use it.

Is it really really necessary to have such a large executable?

Andrew.