[m-dev.] for review: cleanup of mercury_stack_layout.h

[Tyson Dowd]

On 08-Jul-1998, Zoltan Somogyi <zs at cs.mu.OZ.AU> wrote:
> 
> This is for Tyson.
> 
> runtime/mercury_stack_layout.h:
> 	Reorder the components of this file into a sequence of submodules,
> 	with each submodule containing the definition of a type and all
> 	the macros that operate on that type. This should remind people
> 	that updating a type without updating the macros is not a good idea.
> 
> 	Remove obsolete, unused and incorrect macros.
> 
> 	Modify the conventions for the use of incomplete fragments of
> 	proc layout structures, so that by looking at a proc layout
> 	fragment, one can tell how much of it is actually present and
> 	meaningful. This is necessary to avoid references to fields
> 	that are not present or not meaningful.
> 
> compiler/stack_layout.m:
> 	Emit data structures that conform to the new convention.


> Index: runtime/mercury_stack_layout.h
> ===================================================================
> RCS file: /home/mercury1/repository/mercury/runtime/mercury_stack_layout.h,v
> retrieving revision 1.7
> diff -u -u -r1.7 mercury_stack_layout.h
> --- mercury_stack_layout.h	1998/06/18 06:08:03	1.7
> +++ mercury_stack_layout.h	1998/07/08 07:02:57


>  /*
> -** Macros to support hand-written C code.
> +** This structure records information about a procedure.
> +** The structure has three groups of fields:
> +**
> +**	(1) those needed for travesing the stack;

s/travesing/traversing

> +** Group (1) is always be present and meaningful.
> +** Group (2) is be present and meaningful

delete 'be'

> +** if MR_ENTRY_LAYOUT_HAS_PROC_ID(entry) evaluates to true.
> +** Group (3) is be present and meaningful

delete 'be'

Otherwise it's fine.  Thanks.

-- 
       Tyson Dowd           # There isn't any reason why Linux can't be
                            # implemented as an enterprise computing solution.
     trd at cs.mu.oz.au        # Find out what you've been missing while you've
http://www.cs.mu.oz.au/~trd # been rebooting Windows NT. -- InfoWorld, 1998.