From patchwork Mon Dec 21 01:31:17 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Artemiy Volkov X-Patchwork-Id: 10082 Received: (qmail 96073 invoked by alias); 20 Dec 2015 22:35:30 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 95910 invoked by uid 89); 20 Dec 2015 22:35:28 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-2.6 required=5.0 tests=BAYES_00, FREEMAIL_FROM, RCVD_IN_DNSWL_LOW, SPF_PASS autolearn=ham version=3.3.2 spammy=*attr X-HELO: mail-lf0-f66.google.com Received: from mail-lf0-f66.google.com (HELO mail-lf0-f66.google.com) (209.85.215.66) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Sun, 20 Dec 2015 22:35:21 +0000 Received: by mail-lf0-f66.google.com with SMTP id z124so10144134lfa.2 for ; Sun, 20 Dec 2015 14:35:20 -0800 (PST) X-Received: by 10.25.85.78 with SMTP id j75mr5251344lfb.46.1450650917663; Sun, 20 Dec 2015 14:35:17 -0800 (PST) Received: from localhost.localdomain ([37.204.1.155]) by smtp.gmail.com with ESMTPSA id m75sm4420435lfg.15.2015.12.20.14.35.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 20 Dec 2015 14:35:16 -0800 (PST) From: Artemiy Volkov To: gdb-patches@sourceware.org Cc: Artemiy Volkov Subject: [PATCH 07/11] [PR gdb/14441] gdb: dwarf2read: support DW_AT_rvalue_reference type Date: Mon, 21 Dec 2015 04:31:17 +0300 Message-Id: <1450661481-31178-8-git-send-email-artemiyv@acm.org> In-Reply-To: <1450661481-31178-1-git-send-email-artemiyv@acm.org> References: <1450661481-31178-1-git-send-email-artemiyv@acm.org> X-IsSubscribed: yes Make gdb DWARF reader understand 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). ./ChangeLog: 2015-12-19 Artemiy Volkov * gdb/dwarf2read.c (process_die): Handle the DW_AT_rvalue_reference_type DIE. (read_tag_reference_type): Likewise. (read_type_die_1): Likewise. --- gdb/dwarf2read.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/gdb/dwarf2read.c b/gdb/dwarf2read.c index 5c3d42c..1735626 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) { @@ -19114,7 +19118,10 @@ 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);