Re: [gobo-eiffel-develop] Problems when installing GEC

[Eric B. <er...@go...>]

Hi Wolfgang,

Wolfgang Jansen wrote:
> When trying the same with "gcc" then many warnings like the following
> were issued:
> 
>   gec.c: In function `T202f63':
>   gec.c:82734: warning: cast to pointer from integer of different size
> 
> Line 82734 in C code reads
> 
>   t2 = ((T0*)gevoid(((T202*)(C))->a20, l2));
> 
> whereas "gevoid" is declared as
> 
>   extern int gevoid(T0* C, ...);
> 
> Thus, the bad cast is from "int" to "T0*", i.e. from 4 to 8 bytes
> on a Tru64 platform (as I'm working on). I think, the solution is
> to redefine "gevoid" like "T0* gevoid(T0* C, ...)".

I think that this problem should be solved now. gec now generates
a different "gevoid" function for each possible return type.
So, no bad type cast should occur anymore.

> After the warnings an error message follows:
> 
>   as1: Error: /usr/tmp/cciOAHCE.s, line 5: gp-relative segments together 
> exceed 64k bytes
> 
> Probably, the generated object file is too large.
> (I had the same effect also earlier when bootstrapping the SE compiler
> from a single C file instead from a split one.)

gec is now able to split the generated C code over several files.
I didn't change the bootstrap to use this new functionality yet.

>   cc: Warning: gec.c, line 479288: Non-void function "gevoid" does not 
> contain a return statement. (missingreturn)
>   int gevoid(T0* C, ...)

This should be solved as well.

-- 
Eric Bezault
mailto:er...@go...
http://www.gobosoft.com