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vla: introduce new bound type abstraction adapt uses

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The rational behind this patch is to get started to implement the feature
described in dwarf4 standard (2.19) Static and Dynamic Values of Attributes.
It adds new BOUND_PROP to store either a constant, exprloc, or reference to
describe an upper-/lower bound of a subrange. Other than that no new features
are introduced.

	* dwarf2read.c (read_subrange_type): Use struct bound_prop for
	declaring high/low bounds and change uses accordingly. Call
	create_range_type instead of create_static_range_type.
	* gdbtypes.c (create_range_type): New function.
	(create_range_type): Convert bounds into struct bound_prop and pass
	them to create_range_type.
	* gdbtypes.h (struct bound_prop): New struct.
	(create_range_type): New function prototype.
	(struct range_bounds): Use struct bound_prop instead of LONGEST for
	high/low bounds. Remove low_undefined/high_undefined and adapt all uses.
	(TYPE_LOW_BOUND,TYPE_HIGH_BOUND): Adapt macros to refer to the static
	part of the bound.
	* parse.c (follow_types): Set high bound kind to BOUND_UNDEFINED.
This commit is contained in:
Sanimir Agovic 2013-10-08 15:04:49 +01:00
parent 0c9c347402
commit 729efb1317
5 changed files with 123 additions and 47 deletions
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3
gdb/parse.c
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@ -1692,7 +1692,8 @@ follow_types (struct type *follow_type)
lookup_array_range_type (follow_type,
0, array_size >= 0 ? array_size - 1 : 0);
if (array_size < 0)
TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (follow_type) = 1;
TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (follow_type))
= PROP_UNDEFINED;
break;
case tp_function:
/* FIXME-type-allocation: need a way to free this type when we are