* include/abg-fwd.h (get_data_member_offset): Declare new overload for
decl_base_sptr.
* include/abg-comparison.h (unsigned_decl_base_sptr_map)
(unsigned_changed_type_or_decl_map): New typedefs.
* src/abg-ir.cc (get_data_member_offset): Define new overload for decl_base_sptr.
* src/abg-comparison.cc (diff_kind::subtype_change_kind): New
enumerator for a change about a type or sub-type of a member of a
structure/enum.
(report_mem_header): Handle the new enumerator above.
(class_diff::priv::{deleted_dm_by_offset_, inserted_dm_by_offset_,
changed_dm_}): New data members.
(class_diff::priv::subtype_changed_dm_): Renamed
class_diff::priv::changed_data_members_ into this.
(class_diff::priv::subtype_changed_dm): Renamed
class_diff::priv::data_member_has_changed into this. Adjust.
(class_diff::count_filtered_subtype_changed_dm): Renamed
count_filtered_data_members into this. Adjust.
(class_diff::priv::count_filtered_changed_dm): New member
function.
(class_diff::lookup_tables_empty): Adjust.
(class_diff::ensure_lookup_tables_populated): Adjust. Detect when
a data member is deleted and added back to offset N, and be
prepared to present that as a change of data member at offset N.
(class_diff::report): Adjust. Report data members of a given
offset that have changed.
* tests/data/test-diff-dwarf/test6-report.txt: New reference
report for new test input.
* tests/data/test-diff-dwarf/test6-v0.cc: Source code for new test
input binary.
* tests/data/test-diff-dwarf/test6-v0.o: New test input binary.
* tests/data/test-diff-dwarf/test6-v1.cc: Source code for new test
input binary.
* tests/data/test-diff-dwarf/test6-v1.o: New test input binary.
* tests/test-diff-dwarf.cc: Adjust to include the new test inputs above.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
