From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id D13493857C60; Thu,  1 Oct 2020 20:54:11 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D13493857C60
From: "mark at klomp dot org" <sourceware-bugzilla@sourceware.org>
To: libabigail@sourceware.org
Subject: [Bug default/26684] abidiff says that some bit field elements
 missing in version of binary with dwarf5 debuginfo.
Date: Thu, 01 Oct 2020 20:54:11 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: libabigail
X-Bugzilla-Component: default
X-Bugzilla-Version: unspecified
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: mark at klomp dot org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: dodji at redhat dot com
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-26684-9487-oRFK4fUaMh@http.sourceware.org/bugzilla/>
In-Reply-To: <bug-26684-9487@http.sourceware.org/bugzilla/>
References: <bug-26684-9487@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: libabigail@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Mailing list of the Libabigail project <libabigail.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/libabigail>,
 <mailto:libabigail-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/libabigail/>
List-Help: <mailto:libabigail-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/libabigail>,
 <mailto:libabigail-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Thu, 01 Oct 2020 20:54:11 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D26684

--- Comment #8 from Mark Wielaard <mark at klomp dot org> ---
Simpler example that shows the issue:

struct pea
{
  int type;
  long a:1, b:1, c:1;
};

struct pea p;

gcc -gdwarf-4:

 [    1d]    structure_type       abbrev: 2
             name                 (string) "pea"
             byte_size            (data1) 8
             decl_file            (data1) bf.c (1)
             decl_line            (data1) 1
             decl_column          (data1) 8
             sibling              (ref4) [    62]
 [    2a]      member               abbrev: 3
               name                 (strp) "type"
               decl_file            (data1) bf.c (1)
               decl_line            (data1) 3
               decl_column          (data1) 7
               type                 (ref4) [    62]
               data_member_location (data1) 0
 [    37]      member               abbrev: 4
               name                 (string) "a"
               decl_file            (data1) bf.c (1)
               decl_line            (data1) 4
               decl_column          (data1) 8
               type                 (ref4) [    69]
               byte_size            (data1) 8
               bit_size             (data1) 1
               bit_offset           (data1) 31
               data_member_location (data1) 0
 [    45]      member               abbrev: 4
               name                 (string) "b"
               decl_file            (data1) bf.c (1)
               decl_line            (data1) 4
               decl_column          (data1) 13
               type                 (ref4) [    69]
               byte_size            (data1) 8
               bit_size             (data1) 1
               bit_offset           (data1) 30
               data_member_location (data1) 0
 [    53]      member               abbrev: 4
               name                 (string) "c"
               decl_file            (data1) bf.c (1)
               decl_line            (data1) 4
               decl_column          (data1) 18
               type                 (ref4) [    69]
               byte_size            (data1) 8
               bit_size             (data1) 1
               bit_offset           (data1) 29
               data_member_location (data1) 0

gcc -gdwarf-5:

 [    1e]    structure_type       abbrev: 3
             name                 (string) "pea"
             byte_size            (data1) 8
             decl_file            (data1) bf.c (1)
             decl_line            (data1) 1
             decl_column          (data1) 8
             sibling              (ref4) [    54]
 [    2b]      member               abbrev: 4
               name                 (strp) "type"
               decl_file            (data1) bf.c (1)
               decl_line            (data1) 3
               decl_column          (data1) 7
               type                 (ref4) [    54]
               data_member_location (data1) 0
 [    38]      member               abbrev: 1
               name                 (string) "a"
               decl_file            (implicit_const) bf.c (1)
               decl_line            (implicit_const) 4
               decl_column          (data1) 8
               type                 (ref4) [    5b]
               bit_size             (implicit_const) 1
               data_bit_offset      (data1) 32
 [    41]      member               abbrev: 1
               name                 (string) "b"
               decl_file            (implicit_const) bf.c (1)
               decl_line            (implicit_const) 4
               decl_column          (data1) 13
               type                 (ref4) [    5b]
               bit_size             (implicit_const) 1
               data_bit_offset      (data1) 33
 [    4a]      member               abbrev: 1
               name                 (string) "c"
               decl_file            (implicit_const) bf.c (1)
               decl_line            (implicit_const) 4
               decl_column          (data1) 18
               type                 (ref4) [    5b]
               bit_size             (implicit_const) 1
               data_bit_offset      (data1) 34

--=20
You are receiving this mail because:
You are on the CC list for the bug.=