Libabigail 2.3 is out!

Libabigail 2.3 is out!

[Dodji Seketeli]

Hello,

Libabigail 2.3 has been released.

You can download it at http://mirrors.kernel.org/sourceware/libabigail/libabigail-2.3.tar.xz.

Libabigail is a library which aims at constructing, manipulating,
serializing and de-serializing ABI-relevant artifacts.

It also comes with a set of associated command line tools to compare
the interfaces of ELF binaries resulting from the compilation of C or
C++ programs.

Typical use cases of libabigail tools include detecting ABI
incompatible changes across several releases of shared libraries or
incompatible changes in the interface between a Linux kernel and its
modules, for instance.

Users can of course write their own tools using the library.

The library comes with extensive API documentation available online at
https://sourceware.org/libabigail/apidoc.  The tools are documented
online as well at https://sourceware.org/libabigail/manual/libabigail-tools.html.

Some highlights of this release include:

     * Support of the BTF debug info format[1]

     * Improved support for Ada range types

     * Support a new [allow_type] directive in suppression
       specifications, along with various new properties in the
       existing [suppress_type] suppression specification.

     * Following these the new features above, the version of the
       ABIXML file format was incremented to 2.2 from its previous
       2.1.

     * The SONAME of the library has been changed to reflect its own ABI
       change.

     * A lot of bug fixes

[1]: https://docs.kernel.org/bpf/btf.html

Below is the full summary of the significant changes in this new
release:

    Aleksei Vetrov (1):
	  symtab: fix getting CRC in relocatable modules

    Ben Woodard (1):
	  Have fedabipkgdiff sleep while waiting for abipkgdiff

    Dodji Seketeli (92):
	  ir: Improve get_debug_representation
	  ir: Add a debug_comp_stack debugging function
	  Bug 29857 - Don't pop comparison operands that haven't been pushed
	  Bug 29857 - dwarf-reader: Resolve decl-only unions
	  Bug 29857 - Better detect comparison cycles in type graph
	  ir: Cache more aggregate type comparison results
	  NEWS: Update for 2.2 release
	  ChangeLog: Update for 2.2 release
	  configure: Bump version number to 2.3
	  Update website documentation for 2.2
	  Bug 29901 - abidiff hangs when comparing libgs.so.10 with itself
	  Bug 29934 - Handle buggy data members with empty names
	  dwarf-reader: Bug 29932 - Handle function DIE as type as needed
	  elf-reader: Don't free CTF resources too early
	  ir: misc cleanups
	  ir: Bug 29934 - Fix propagated canonical type confirmation
	  ir: Add sanity checking to canonical type propagation confirmation
	  Update copyright year for 2023
	  Don't use the "infinite" keyword for arrays of unknown size
	  dwarf-reader: Bug 29811 - Support updating of variable type
	  Bug 29811 - Better categorize harmless unknown array size changes
	  fix comparing array subrange DIEs
	  configure: Enable the CTF front-end by default
	  Add support for BTF
	  Update the copyright notice for the BTF reader
	  btf-reader: Use abigail::ir::canonicalize_types to canonicalize types
	  Better detect suitable libctf version
	  Update CTF's ctf_dict_t detection
	  fe-iface: Add missing virtual destructor
	  dwarf-reader: Remove unused code
	  corpus: Handle empty symbol table cases
	  {dwarf,elf_based}-reader,writer: Avoid duplicating corpora in corpus_group
	  default-reporter: Fix source location in functions change report
	  PR30048 - wrong pretty representation of qualified pointers
	  configure: Bump the CURRENT library number
	  ir: Add missing virtual methods overloads
	  ctf-reader: Fix GCC 13 warnings
	  abipkgdiff: Emit better logs in verbose mode
	  abipkgdiff: Emit error when no vmlinux is found in debug package
	  ini: Fix parsing list property values
	  suppr: Support has_data_member and has_data_member_regexp properties
	  suppression: Factorize out is_data_member_offset_in_range
	  suppression: Support the has_size_change property for suppress_type
	  suppression: Support offset_of_{first,last}_data_member_regexp offset selectors
	  comparison, suppression: Support [allow_type] directive
	  Misc white space fixes
	  abidiff: Add extensive logging
	  tools-utils: Support kernel stablelist
	  comp-filter: Don't re-visit node while applying filters to diff nodes
	  comparison: Add a mode to not apply filters on interface sub-graphs
	  comparison: When marking leaf nodes don't do unnecessary impact analysis
	  comp-filter: Speed up harmless/harmful categorization
	  tools-utils: Improve logging in build_corpus_group_from_kernel_dist_under
	  ir: Fix cycle detection for union types
	  Bug 29977 - dwarf-reader: Fix canonical DIE propagation canceling
	  dwarf-reader,abidiff: Fix compilation with --enable-debug-type-canonicalization
	  Bug 29912 - Better support an ELF symbol alias that designates several functions
	  Bug 29911 - fedabipkgdiff forgets to provide some debuginfo RPMs to abipkgdiff
	  Bug 29692 - Support binaries with empty symbol table
	  abipkgdiff: Fix a typo
	  test-symtab: Update after support for empty symtabs
	  Bug 29690 - Out of range exception in add_or_update_class_type
	  Bug 29686 - Fix testing the presence of anonymous data member in a struct
	  Bug 29345 - abipkgdiff is confused by symlinked binaries in RPMs
	  Bug 29340 - Add support for Ada range types
	  Fix redundancy filtering of range types
	  Bug rhbz#2182807 --  abipkgdiff crashes on missing debuginfo package
	  dwarf-reader: Support Ada subranges having upper_bound < lower_bound
	  abipkgdiff: Don't use user-specific filesystem info in error msg
	  reader: Make reader::get_scope_for_node handle subranges at array scope.
	  dwarf-reader: Support DW_OP_GNU_variable_value
	  dwarf-reader: Fix typo in comment
	  dwarf-reader: Support indirectly referenced subrange_type DIEs
	  fedabipkgdiff: Add timing data in debug logs
	  fedabipkgdiff: Remove busy loop when forking abipkgdiff
	  Bug 29339 - elf-helpers: Don't crash on unexpected ELF file
	  abi{dw,diff}: Better error messages when alternate debuginfo not found
	  abidiff,reader: Fix compilation with --debug-self-comparison
	  ir: Add new environment::get_type_id_from_type
	  ir: Recognize "void* as being equal to all other pointers in C
	  tests/update-test-output.py: Adapt to some broken test output
	  Improve self-comparison debug mode
	  ir: Improve debugging type_base::get_canonical_type_for
	  writer: Annotate pointer representation
	  comparison: Fix index error when interpreting scope comparison
	  ir: fix canonical type propagation canceling error
	  reader: Recognize variadic parameter type from abixml
	  Bug 30309 - Support absolute path to alt debug info file in DWARF
	  Fix the test of the patch for Bug 30309
	  test-abidiff-exit: Fix the command line passed to abidiff
	  ini: Do not crash on incorrect property value
	  test-ini: Fix a typo

    Giuliano Procida (1):
	  DWARF reader: avoid C++20 operator!= overload ambiguity

    Guillermo E. Martinez (4):
	  ctf-front-end: Add test for alias symbols
	  ctf-reader: Fix missing initializer for member in test suite
	  abipkgdiff: Fix kernel package detection when comparing kABIs
	  tools-utils: Fix looking for vmlinux binary in debuginfo package

    Mark Wielaard (1):
	  doc: Fix some typos and add some missing references

    Petr Pavlu (2):
	  Fix de-initialization of elf::reader::priv
	  abidiff: Fix handling of linux-kernel-mode

    Xiaole He (1):
	  elf-reader: reclaim fd and mem before break

Many thanks to those who contributed to this release with bug reports,
comments or code.

Happy Hacking and may all significant binary interface changes of your
programs be noticed!

-- 
		Dodji