[Bug default/27726] New: libceph_librbd_parent_cache.so.1.0.0 fails self check

["woodard at redhat dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27726

            Bug ID: 27726
           Summary: libceph_librbd_parent_cache.so.1.0.0 fails self check
           Product: libabigail
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: default
          Assignee: dodji at redhat dot com
          Reporter: woodard at redhat dot com
                CC: libabigail at sourceware dot org
  Target Milestone: ---

With libabigail as of: b215a2115376225b04b4d6b25acc6c5a1b4021e9
/usr/lib64/ceph/librbd/libceph_librbd_parent_cache.so.1.0.0 from
librbd1-16.2.0-2.fc34.x86_64 fails self check 


/home/ben/Shared/Work/test/libabigail-x86_64/bin/abidw --abidiff
/usr/lib64/ceph/librbd/libceph_librbd_parent_cache.so.1.0.0

Reading symbols from abidw...
Starting program: /home/ben/Shared/Work/test/libabigail-x86_64/bin/abidw
--abidiff /usr/lib64/ceph/librbd/libceph_librbd_parent_cache.so.1.0.0
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Functions changes summary: 0 Removed, 1 Changed, 0 Added function
Variables changes summary: 0 Removed, 0 Changed, 0 Added variable

1 function with some indirect sub-type change:

  [C] 'method virtual void
ceph::immutable_obj_cache::ObjectCacheRegReplyData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)' at Types.cc:139:1 has some indirect sub-type changes:
    Please note that the symbol of this function is
_ZN4ceph19immutable_obj_cache24ObjectCacheReadRadosData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh
     and it aliases symbol:
_ZN4ceph19immutable_obj_cache23ObjectCacheRegReplyData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh
    'method virtual void
ceph::immutable_obj_cache::ObjectCacheRegReplyData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)
{_ZN4ceph19immutable_obj_cache24ObjectCacheReadRadosData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh,
_ZN4ceph19immutable_obj_cache23ObjectCacheRegReplyData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh}'
now becomes 'method virtual void
ceph::immutable_obj_cache::ObjectCacheReadRadosData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)
{_ZN4ceph19immutable_obj_cache24ObjectCacheReadRadosData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh,
_ZN4ceph19immutable_obj_cache23ObjectCacheRegReplyData14decode_payloadENS_6buffer7v15_2_04list13iterator_implILb1EEEh}'
    implicit parameter 0 of type
'ceph::immutable_obj_cache::ObjectCacheRegReplyData*' changed:
      in pointed to type 'class
ceph::immutable_obj_cache::ObjectCacheRegReplyData' at Types.h:120:1:
        type name changed from
'ceph::immutable_obj_cache::ObjectCacheRegReplyData' to
'ceph::immutable_obj_cache::ObjectCacheReadRadosData'
        type size hasn't changed
        7 member function deletions:
          'method virtual void
ceph::immutable_obj_cache::ObjectCacheRegReplyData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)' at Types.cc:71:1, virtual at voffset 3/5
          'method virtual void
ceph::immutable_obj_cache::ObjectCacheRegReplyData::encode_payload()' at
Types.cc:69:1, virtual at voffset 2/5
          'method virtual uint16_t
ceph::immutable_obj_cache::ObjectCacheRegReplyData::get_request_type()' at
Types.h:81:1, virtual at voffset 4/5
          'method virtual bool
ceph::immutable_obj_cache::ObjectCacheRegReplyData::payload_empty()' at
Types.h:82:1, virtual at voffset 5/5
          'method virtual
ceph::immutable_obj_cache::ObjectCacheRegReplyData::~ObjectCacheRegReplyData(int)'
at Types.cc:67:1
          'method virtual
ceph::immutable_obj_cache::ObjectCacheRegReplyData::~ObjectCacheRegReplyData(int)'
at Types.cc:67:1
          'method virtual
ceph::immutable_obj_cache::ObjectCacheRegReplyData::~ObjectCacheRegReplyData(int)'
at Types.cc:67:1
        7 member function insertions:
          'method virtual void
ceph::immutable_obj_cache::ObjectCacheReadRadosData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)' at Types.cc:139:1, virtual at voffset 3/5
          'method virtual void
ceph::immutable_obj_cache::ObjectCacheReadRadosData::encode_payload()' at
Types.cc:137:1, virtual at voffset 2/5
          'method virtual uint16_t
ceph::immutable_obj_cache::ObjectCacheReadRadosData::get_request_type()' at
Types.h:128:1, virtual at voffset 4/5
          'method virtual bool
ceph::immutable_obj_cache::ObjectCacheReadRadosData::payload_empty()' at
Types.h:129:1, virtual at voffset 5/5
          'method virtual
ceph::immutable_obj_cache::ObjectCacheReadRadosData::~ObjectCacheReadRadosData(int)'
at Types.cc:135:1
          'method virtual
ceph::immutable_obj_cache::ObjectCacheReadRadosData::~ObjectCacheReadRadosData(int)'
at Types.cc:135:1
          'method virtual
ceph::immutable_obj_cache::ObjectCacheReadRadosData::~ObjectCacheReadRadosData(int)'
at Types.cc:135:1

[Inferior 1 (process 22180) exited with code 01]
No stack.

The weird thing with this one is if you look at it, it seems like it thinks
that the definitions are the same but the location 

          'method virtual void
ceph::immutable_obj_cache::ObjectCacheRegReplyData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)' at Types.cc:71:1, virtual at voffset 3/5
          'method virtual void
ceph::immutable_obj_cache::ObjectCacheReadRadosData::decode_payload(ceph::buffer::v15_2_0::list::const_iterator,
__u8)' at Types.cc:139:1, virtual at voffset 3/5

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