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Support DW_TAG_rvalue_reference type 

Make gdb DWARF reader understand the DW_TAG_rvalue_reference type tag. Handling
of this tag is done in the existing read_tag_reference_type() function, to
which we add a new parameter representing the kind of reference type
(lvalue vs rvalue).

gdb/ChangeLog

	PR gdb/14441
	* dwarf2read.c (process_die, read_type_die_1): Handle the
	DW_TAG_rvalue_reference_type DIE.
	(read_tag_reference_type): Add new parameter "refcode".
This commit is contained in:
Artemiy Volkov 2017-03-20 13:47:50 -07:00 committed by Keith Seitz
parent e1cb321347
commit 4297a3f002
2 changed files with 18 additions and 4 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2017-03-20 Artemiy Volkov <artemiyv@acm.org>
PR gdb/14441
* dwarf2read.c (process_die, read_type_die_1): Handle the
DW_TAG_rvalue_reference_type DIE.
(read_tag_reference_type): Add new parameter "refcode".
2017-03-20 Artemiy Volkov <artemiyv@acm.org>
PR gdb/14441

15
gdb/dwarf2read.c
View File

@ -8388,6 +8388,7 @@ process_die (struct die_info *die, struct dwarf2_cu *cu)
case DW_TAG_pointer_type:
case DW_TAG_ptr_to_member_type:
case DW_TAG_reference_type:
case DW_TAG_rvalue_reference_type:
case DW_TAG_string_type:
break;
@ -14567,16 +14568,19 @@ read_tag_ptr_to_member_type (struct die_info *die, struct dwarf2_cu *cu)
return set_die_type (die, type, cu);
}
/* Extract all information from a DW_TAG_reference_type DIE and add to
/* Extract all information from a DW_TAG_{rvalue_,}reference_type DIE and add to
the user defined type vector. */
static struct type *
read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu,
enum type_code refcode)
{
struct comp_unit_head *cu_header = &cu->header;
struct type *type, *target_type;
struct attribute *attr;
gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF);
target_type = die_type (die, cu);
/* The die_type call above may have already set the type for this DIE. */
@ -14584,7 +14588,7 @@ read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
if (type)
return type;
type = lookup_lvalue_reference_type (target_type);
type = lookup_reference_type (target_type, refcode);
attr = dwarf2_attr (die, DW_AT_byte_size, cu);
if (attr)
{
@ -19620,7 +19624,10 @@ read_type_die_1 (struct die_info *die, struct dwarf2_cu *cu)
this_type = read_tag_ptr_to_member_type (die, cu);
break;
case DW_TAG_reference_type:
this_type = read_tag_reference_type (die, cu);
this_type = read_tag_reference_type (die, cu, TYPE_CODE_REF);
break;
case DW_TAG_rvalue_reference_type:
this_type = read_tag_reference_type (die, cu, TYPE_CODE_RVALUE_REF);
break;
case DW_TAG_const_type:
this_type = read_tag_const_type (die, cu);