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[108.60.110.19]) by smtp.gmail.com with ESMTPSA id jr10sm1020677lbc.42.2016.03.04.19.20.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 04 Mar 2016 19:20:21 -0800 (PST) From: Artemiy Volkov To: gdb-patches@sourceware.org Cc: keiths@redhat.com, palves@redhat.com, Artemiy Volkov Subject: [PATCH v3 07/11] [PR gdb/14441] gdb: dwarf2read: support DW_AT_rvalue_reference type Date: Fri, 4 Mar 2016 19:19:11 -0800 Message-Id: <1457147955-21871-8-git-send-email-artemiyv@acm.org> In-Reply-To: <1457147955-21871-1-git-send-email-artemiyv@acm.org> References: <1453229609-20159-1-git-send-email-artemiyv@acm.org> <1457147955-21871-1-git-send-email-artemiyv@acm.org> X-IsSubscribed: yes Make gdb DWARF reader understand the DW_AT_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: 2016-03-03 Artemiy Volkov * dwarf2read.c (process_die, read_type_die_1): Handle the DW_AT_rvalue_reference_type DIE. (read_tag_reference_type): Add new parameter "refcode". --- gdb/dwarf2read.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index cf8ce53..df6491a 100644 --- a/gdb/dwarf2read.c +++ b/gdb/dwarf2read.c @@ -8294,6 +8294,7 @@ 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; @@ -14320,16 +14321,19 @@ 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. */ @@ -14337,7 +14341,7 @@ 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) { @@ -19115,7 +19119,10 @@ 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);