------- Additional Comments From jsm at polyomino dot org dot uk  2004-10-27 15:39 
-------
Subject: Re:  New: Disable special handling of functions with
 --freestanding

On Wed, 27 Oct 2004, alex dot neyman at auriga dot ru wrote:

> - different code is generated for function issuing the setjmp() call and any 
> other function call in freestanding env (actually, the code for a function 
> using setjmp() is the same both in hosted and freestanding env). 

The bug would be that special_function_p checks function names at all.

We have at least three different methods of applying special properties to 
functions based on their names: built-in functions with attributes, 
special_function_f and cp/cfns.gperf.  We should subsume the latter two in 
the first.  See projects/beginner.html.  The special handling may be 
needed to generate correct code in some cases such as setjmp, so disabling 
the special handling without first having an attribute allowing it to be 
reenabled for particular declarations is not a good solution.

I would advise following the usual procedures for contributing (see 
contribute.html) to discuss the issues on gcc-patches and work through 
getting a patch for bug 14411 into GCC.  That is necessary to solve the 
issues for bug 14411.  It would be best to do a series of patches, one for 
each attribute (discussed and revised as necessary) followed by one 
replacing the special_function_p handling with use of that attribute 
(including fixincludes work as necessary).



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18180

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