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Re: [RFA] Harvard extensions for cast expressions
- From: Andrew Cagney <ac131313 at cygnus dot com>
- To: Michael Snyder <msnyder at cygnus dot com>
- Cc: gdb-patches at sources dot redhat dot com, cagney at redhat dot com,jimb at redhat dot com
- Date: Wed, 14 Nov 2001 19:32:10 -0500
- Subject: Re: [RFA] Harvard extensions for cast expressions
- References: <200111142100.fAEL0Kn12623@reddwarf.cygnus.com>
> This is a re-submission, with suggested clean-ups, of an extension
> posted in September to allow cast expressions to include a modifier
> which designates an address space (for now, either "code" or "data").
>
> Future work may be expected to extend this so that address spaces
> can be added dynamically at runtime.
>
> 2001-09-28 Michael Snyder <msnyder@redhat.com>
> Add address space identifiers to expression language for types.
> * c-exp.y (space_identifier, cv_with_space_id,
> const_or_volatile_or_space_identifier_noopt,
> const_or_volatile_or_space_identifier): New terminals.
> (ptype): Accept const_or_volatile_or_space_identifier.
> (typebase): Accept const_or_volatile_or_space_identifier.
> * c-typeprint.c (c_type_print_cv_qualifier): Rename to
> c_type_print_modifier. Handle address space modified types.
> * gdbtypes.h (TYPE_FLAG_CODE_SPACE, TYPE_FLAG_DATA_SPACE):
> New type flags.
> (struct type): Add new field as_type for addr-space qualified types.
> (TYPE_AS_TYPE): New macro, retrieves the chain of types that are
> identical to this one except for address-space qualification.
> * gdbtypes.c (alloc_type): Initialize new field 'as_type'.
> (address_space_name_to_int): New function.
> (address_space_int_to_name): New function.
> (make_type_with_address_space): New function.
> (make_cv_type): Handle as_type field of new struct type object.
> * parse.c (check_type_stack_depth): New function.
> (push_type_address_space): New function.
> (follow_types): Handle types with address-space qualifier.
> * parser-defs.h (enum type_pieces): Add enum tp_space_identifier.
>
>
Yes, ok.
Andrew