Re: RFA: abstract C++ ABI dependencies

[David Taylor <taylor at candd dot org>]

    From: Jim Blandy <jimb@zwingli.cygnus.com>
    Date: 24 Apr 2001 19:42:19 -0500


    Here is the same patch, revised (hopefully) to address the problems
    David and Anthony pointed out.  Test results on both old and new GCC's
    are unchanged.

For my part, this is approved.

Thanks.

    2001-04-24  Jim Blandy  <jimb@redhat.com>

	    (Changes from Daniel Berlin, with revisions by Jim Blandy.)

	    Abstract out operations specific to particular C++ ABI's, and
	    invoke them through a function table.  This removes the C++ ABI
	    dependencies scattered throughout the code, and allows us to
	    cleanly add support for new C++ ABI's.
	    * cp-abi.h, cp-abi.h, gnu-v2-abi.c, hpacc-abi.c: New files.
	    * c-typeprint.c, c-valprint.c, dbxread.c, eval.c, gdbtypes.c,
	    jv-typeprint.c, linespec.c, p-valprint.c, symtab.c, typeprint.c,
	    valops.c: #include "cp-abi.h".  These files all use functions now
	    declared there.
	    * symtab.h (OPNAME_PREFIX_P, VTBL_PREFIX_P, DESTRUCTOR_PREFIX_P):
	    Deleted.  These services are now provided by functions declared in
	    cp-abi.h.
	    * value.h (value_rtti_type, value_virtual_fn_field): Same.
	    * values.c (value_virtual_fn_field): Same, for this definition.
	    * valops.c (value_rtti_type): Same.
	    * c-typeprint.c (c_type_print_base): Use the functions from
	    "cp-abi.h", instead of the old macros, or hard-coded ABI-specific
	    tests.
	    * dbxread.c (record_minimal_symbol): Same.
	    * gdbtypes.c (get_destructor_fn_field, virtual_base_index,
	    virtual_base_index_skip_primaries): Same.
	    * jv-typeprint.c (java_type_print_base): Same.
	    * linespec.c (find_methods, decode_line_1): Same.
	    * symtab.c (gdb_mangle_name): Same.
	    * Makefile.in (SFILES): Add the new .c files mentioned above.
	    (cp_abi_h): New variable.
	    (COMMON_OBS): Add gnu-v2-abi.o, hpacc-abi.o, and cp-abi.o.
	    (cp-abi.o, gnu-v2-abi.o, hpacc-abi.o): New targets.
	    (c-typeprint.o, c-valprint.o, dbxread.o, eval.o, gdbtypes.o,
	    jv-typeprint.o, p-valprint.o, symtab.o, linespec.o, typeprint.o,
	    valops.o): Add dependency on $(cp_abi_h).