[Bug default/27278] New: Stray non-diff

["gprocida+abigail at google dot com" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=27278

            Bug ID: 27278
           Summary: Stray non-diff
           Product: libabigail
           Version: unspecified
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: default
          Assignee: dodji at redhat dot com
          Reporter: gprocida+abigail at google dot com
                CC: libabigail at sourceware dot org
  Target Milestone: ---

Created attachment 13175
  --> https://sourceware.org/bugzilla/attachment.cgi?id=13175&action=edit
input XML files

Hi.

Here is an instance where abidiff thinks there is a change, but doesn't have
anything to say. There may be something not quite right in how things are
labelled as harmless. Interestingly, the output looks more correct with
--leaf-changes-only.

I'm afraid I don't have a small test case. This is at current master,
40709acdd5189e473f27cd8626d6023d6bdf6d8d.

$ abidiff --leaf-changes-only /tmp/{a,b}.xml
Leaf changes summary: 0 artifact changed (80 filtered out)
Changed leaf types summary: 0 (80 filtered out) leaf types changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

$ build/tools/abidiff /tmp/{a,b}.xml
Functions changes summary: 0 Removed, 2 Changed (3373 filtered out), 0 Added
functions                                                          
Variables changes summary: 0 Removed, 0 Changed (78 filtered out), 0 Added
variables

2 functions with some indirect sub-type change:

  [C] 'function bool drm_dp_mst_allocate_vcpi(drm_dp_mst_topology_mgr*,
drm_dp_mst_port*, int, int)' at drm_dp_mst_topology.c:0:0 has some indirect
sub-type changes:
    parameter 2 of type 'drm_dp_mst_port*' has sub-type changes:
      in pointed to type 'struct drm_dp_mst_port' at drm_dp_mst_helper.h:0:0:
        type size hasn't changed
        no data member changes (5 filtered);

  [C] 'function void drm_dp_mst_deallocate_vcpi(drm_dp_mst_topology_mgr*,
drm_dp_mst_port*)' at drm_dp_mst_topology.c:0:0 has some indirect sub-type
changes:
    parameter 2 of type 'drm_dp_mst_port*' has sub-type changes:
      pointed to type 'struct drm_dp_mst_port' changed at
drm_dp_mst_helper.h:0:0, as reported earlier

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