Re: [2/10] Remove &builtin_type_ from tdep code (amd64/s390/sparc64)

["Ulrich Weigand" <uweigand at de dot ibm dot com>]

Daniel Jacobowitz wrote:
> On Sat, Jun 09, 2007 at 01:14:58AM +0200, Ulrich Weigand wrote:
> > Hello,
> > 
> > a number of platforms (amd64, s390, sparc64) were using a global data
> > structure containing pointers to types describing the register types.
> > This is broken if those types need to be platform-specific.
> > 
> > The following patch removes those global data structures, and converts
> > the affected architectures to simply return the types dynamically from
> > the register_type callback, as all other platforms do as well.
> 
> In-flight collision warning: the m68k ColdFire patch may reintroduce an
> occurance of this, for the long double type.

Ah, good catch: 

+  /* Type of an fpreg.  NULL if there are no fpregs.  This is a
+     pointer to the pointer to type struct, because when architecture
+     init function is running, the types for the old architecture are swapped
+     out, and the types for the new architecture are not yet swapped in,
+     so all types that don't have specific sizes (like builting_type_double)
+     are NULL.  */
+  struct type **fpreg_type;

Vladimir, would you mind rewriting this?  I'd suggest to remove the
fpreg_type variable, and instead check the "flavour" in m68k_register_type.

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU Toolchain for Linux on System z and Cell BE
  Ulrich.Weigand@de.ibm.com