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 DF6AB3858C83; Mon, 28 Feb 2022 13:15:46 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DF6AB3858C83
From: "dichen at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: elfutils-devel@sourceware.org
Subject: [Bug tools/28928] New: Wrong dynamic section entry number
Date: Mon, 28 Feb 2022 13:15:46 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: elfutils
X-Bugzilla-Component: tools
X-Bugzilla-Version: unspecified
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dichen at redhat dot com
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter cc target_milestone
Message-ID: <bug-28928-10460@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: elfutils-devel@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Elfutils-devel mailing list <elfutils-devel.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/elfutils-devel>,
 <mailto:elfutils-devel-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/elfutils-devel/>
List-Help: <mailto:elfutils-devel-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/elfutils-devel>,
 <mailto:elfutils-devel-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Mon, 28 Feb 2022 13:15:47 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D28928

            Bug ID: 28928
           Summary: Wrong dynamic section entry number
           Product: elfutils
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tools
          Assignee: unassigned at sourceware dot org
          Reporter: dichen at redhat dot com
                CC: elfutils-devel at sourceware dot org
  Target Milestone: ---

when using `$ eu-readelf -d {file}` to get the number of dynamic section
entris,
It wrongly counts the padding DT_NULLs as dynamic section entries.
However, DT_NULL Marks end of dynamic section. They should not be counted as
dynamic section entries.

```
$ eu-readelf -d /usr/local/bin/eu-readelf=20

Dynamic segment contains 31 entries:
 Addr: 0x0000000000474e00  Offset: 0x073e00  Link to section: [ 7] '.dynstr'
  Type              Value
  NEEDED            Shared library: [libdw.so.1]
  NEEDED            Shared library: [libelf.so.1]
  NEEDED            Shared library: [libc.so.6]
  INIT              0x0000000000404000
  FINI              0x000000000043d4a8
  INIT_ARRAY        0x0000000000474df0
  INIT_ARRAYSZ      8 (bytes)
  FINI_ARRAY        0x0000000000474df8
  FINI_ARRAYSZ      8 (bytes)
  GNU_HASH          0x00000000004003a0
  STRTAB            0x00000000004016b0
  SYMTAB            0x00000000004003f0
  STRSZ             3086 (bytes)
  SYMENT            24 (bytes)
  DEBUG=20=20=20=20=20=20=20=20=20=20=20=20=20
  PLTGOT            0x0000000000475000
  PLTRELSZ          4560 (bytes)
  PLTREL            RELA
  JMPREL            0x00000000004026a0
  RELA              0x0000000000402610
  RELASZ            144 (bytes)
  RELAENT           24 (bytes)
  VERNEED           0x0000000000402450
  VERNEEDNUM        3
  VERSYM            0x00000000004022be
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20
  NULL=20=20=20=20=20=20=20=20=20=20=20=20=20=20

```

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