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Move vptr_{fieldno,basetype} out of main_type, and update everything accordingly.

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Every type has to pay the price in memory usage for their presence.
The proper place for them is in the type_specific field which exists
for this purpose.

gdb/ChangeLog:

	* dwarf2read.c (process_structure_scope): Update setting of
	TYPE_VPTR_BASETYPE, TYPE_VPTR_FIELDNO.
	* gdbtypes.c (internal_type_vptr_fieldno): New function.
	(set_type_vptr_fieldno): New function.
	(internal_type_vptr_basetype): New function.
	(set_type_vptr_basetype): New function.
	(get_vptr_fieldno): Update setting of TYPE_VPTR_FIELDNO,
	TYPE_VPTR_BASETYPE.
	(allocate_cplus_struct_type): Initialize vptr_fieldno.
	(recursive_dump_type): Printing of vptr_fieldno, vptr_basetype ...
	(print_cplus_stuff): ... moved here.
	(copy_type_recursive): Don't copy TYPE_VPTR_BASETYPE.
	* gdbtypes.h (struct main_type): Members vptr_fieldno, vptr_basetype
	moved to ...
	(struct cplus_struct_type): ... here.  All uses updated.
	(TYPE_VPTR_FIELDNO, TYPE_VPTR_BASETYPE): Rewrite.
	(internal_type_vptr_fieldno, set_type_vptr_fieldno): Declare.
	(internal_type_vptr_basetype, set_type_vptr_basetype): Declare.
	* stabsread.c (read_tilde_fields): Update setting of
	TYPE_VPTR_FIELDNO, TYPE_VPTR_BASETYPE.

gdb/testsuite/ChangeLog:

	* gdb.base/maint.exp <maint print type argc>: Update expected output.
This commit is contained in:
Doug Evans
2015-01-31 21:40:57 -08:00
parent 09e2d7c720
commit ae6ae97502
9 changed files with 126 additions and 53 deletions
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gdb/eval.c
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@@ -664,7 +664,6 @@ make_params (int num_types, struct type **param_types)
TYPE_MAIN_TYPE (type) = XCNEW (struct main_type);
TYPE_LENGTH (type) = 1;
TYPE_CODE (type) = TYPE_CODE_METHOD;
TYPE_VPTR_FIELDNO (type) = -1;
TYPE_CHAIN (type) = type;
if (num_types > 0)
{