Re: GNAT memory allocation

[guerby@gnat.com (Laurent Guerby)]

Henry> I've got a problem allocating memory using the GNAT Ada
Henry> compiler v3.05 on a Sun Sparc 10 w/ Solaris 2.4.  When I
Henry> declare large arrays (on the order of 1 Meg) I get a core dump.
Henry> It seems like the memory for these large arrays is allocated
Henry> from the stack.  

   Since GNAT on Solaris doesn't implement yet stack checking, this
may indeed be a stack overflow. May be you're declaring a big array in
a task or in a subprogram that is called from a task, then the
solution is to use the pragma Storage_Size, RM95-13.3(61-67) to
specify a bigger stack for the task. If you think this is a compiler
bug, send your set of sources andGNAT version information to
report@gnat.com.

Henry> Is there a way force storage of these arrays
Henry> elsewhere in memory where there is more storage space -- maybe
Henry> something equivalent to the "static" statement in c?  Are there
Henry> any pragmas that do this?

   A "static" C maps to a package defined variable, and there's also
dynamic allocation to allocate arrays on the heap (using new).

Henry> Any help would be greatly appreciated!

   Hope this helps,

-- 
Laurent Guerby <guerby@gnat.com>, Team Ada.
   "Use the Source, Luke. The Source will be with you, always (GPL)."