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".
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@ -1,3 +1,10 @@
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2017-03-20 Artemiy Volkov <artemiyv@acm.org>
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PR gdb/14441
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* dwarf2read.c (process_die, read_type_die_1): Handle the
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DW_TAG_rvalue_reference_type DIE.
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(read_tag_reference_type): Add new parameter "refcode".
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2017-03-20 Artemiy Volkov <artemiyv@acm.org>
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PR gdb/14441
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@ -8388,6 +8388,7 @@ process_die (struct die_info *die, struct dwarf2_cu *cu)
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case DW_TAG_pointer_type:
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case DW_TAG_ptr_to_member_type:
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case DW_TAG_reference_type:
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case DW_TAG_rvalue_reference_type:
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case DW_TAG_string_type:
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break;
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@ -14567,16 +14568,19 @@ read_tag_ptr_to_member_type (struct die_info *die, struct dwarf2_cu *cu)
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return set_die_type (die, type, cu);
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}
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/* Extract all information from a DW_TAG_reference_type DIE and add to
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/* Extract all information from a DW_TAG_{rvalue_,}reference_type DIE and add to
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the user defined type vector. */
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static struct type *
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read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
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read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu,
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enum type_code refcode)
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{
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struct comp_unit_head *cu_header = &cu->header;
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struct type *type, *target_type;
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struct attribute *attr;
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gdb_assert (refcode == TYPE_CODE_REF || refcode == TYPE_CODE_RVALUE_REF);
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target_type = die_type (die, cu);
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/* The die_type call above may have already set the type for this DIE. */
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@ -14584,7 +14588,7 @@ read_tag_reference_type (struct die_info *die, struct dwarf2_cu *cu)
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if (type)
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return type;
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type = lookup_lvalue_reference_type (target_type);
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type = lookup_reference_type (target_type, refcode);
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attr = dwarf2_attr (die, DW_AT_byte_size, cu);
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if (attr)
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{
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@ -19620,7 +19624,10 @@ read_type_die_1 (struct die_info *die, struct dwarf2_cu *cu)
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this_type = read_tag_ptr_to_member_type (die, cu);
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break;
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case DW_TAG_reference_type:
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this_type = read_tag_reference_type (die, cu);
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this_type = read_tag_reference_type (die, cu, TYPE_CODE_REF);
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break;
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case DW_TAG_rvalue_reference_type:
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this_type = read_tag_reference_type (die, cu, TYPE_CODE_RVALUE_REF);
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break;
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case DW_TAG_const_type:
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this_type = read_tag_const_type (die, cu);
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