ABI Compliance
Checker: History

Version 2.2 (August 30, 2017)
Improvements

• Improved support for Fortran

Bug Fixes

• Fixed analysis of inline functions
• Fixed analysis of calling conventions
• Fixed handling of C++ keywords in C code
• Fixed -lang option
• Fixed handling of errors when compressing ABI dumps
• Fixed style of the report

Version 2.1 (June 17, 2017)
Improvements

• Show added v-table symbols for public classes

Bug Fixes

• Fixed analysis of static methods
• Fixed analysis of typedefs
• Fixed analysis of zero-size structs
• Fixed logs
• Fixed analysis of static libraries on Windows
• Fixed search for files on Windows

Other

• Documented -skip-internal-types option in -help
• Add noindex meta tag to report if no changes detected

Version 2.0 (January 28, 2017)
Improvements

• Code refactoring
• Works faster on big libraries
• Added a module to create ABI dump from AST tree
• Added a module to create AST dump
• Added a module to parse GCC AST
• Added a module to find system files and automatically generate include paths
• Added a module to mangle C++ symbols
• Added a module to read ELF binaries
• Added a module to handle type attributes
• Added a module to handle XML descriptors
• Added a module to filter symbols
• Added a module to handle input data
• Added a module for logging
• Extended test suite
• Partial support for GCC 6
• Improved support for Solaris
• Compare versioned data types

New Options

• Added -filter option: a path to XML descriptor with skip_* rules to filter analyzed symbols in the report
• Added -keep-cxx option to check _ZS*, _ZNS* and _ZNKS* symbols

Bug Fixes

• Fixed automatic generation of include paths
• Fixed report for removed virtual symbols
• Fixed XML-format ABI dumps
• Fixed source-compatibility reports
• Fixed counter of checked data types
• Fixed lists of affected symbols
• Fixed analysis of standard C++ libraries
• Fixed analysis of added and removed virtual methods
• Fixed style of the report
• Fixed analysis of alias symbols
• Uncover changed typedefs properly
• Fixed Parameter_From_Register and Parameter_To_Register rules
• Fixed analysis of data types derived from template instances
• Enable -headers-only option automatically if header file is used as input library descriptor
• Fixed analysis of template instances
• Fixed analysis of static data
• Fixed error message if modules are not installed
• Fixed analysis of versioned symbols
• Fixed -ext option
• Fixed -use-dumps option
• Fixed -debug option
• Fixed console output

Other

• Removed support for too old ABI dumps

Version 1.99.25 (October 07, 2016)
New Options

• -test-abi-dumper: compare ABI dumps created by the ABI Dumper tool

Bug Fixes

• Do not list a symbol as removed in the source-compatibility report if it is presented in the dynsym table

Version 1.99.24 (October 04, 2016)
Improvements

• Support for Clang
• Improved a module to compare operating systems
• Improved support for C++ keywords in C code
• Improved support for Windows
• Improved support for MinGW

New Options

• -skip-typedef-uncover: do not report a problem if type is covered or uncovered by typedef (useful for broken debug info)
• -mingw-compatible: if input header files are compatible with the MinGW GCC compiler, then you can tell the tool about this and speedup the analysis
• -skip-unidentified: skip header files in 'headers' and 'include_preamble' sections of the XML descriptor that cannot be found
• -disable-constants-check: do not check for changes in constants
• -skip-added-constants: do not detect added constants
• -skip-removed-constants: do not detect removed constants

Bug Fixes

• Do not show GCC version in the source compatibility report
• Renamed CPU Type column to Arch in the report
• Support for ABI dumps v3.3
• The -cpp-compatible option is now enabled by default

Version 1.99.23 (August 15, 2016)
Improvements

• Improved generation of quick empty reports
• Improved SysCheck.pm module for analysis of operating systems
• Improved support for Windows 10

New Options

• -disable-quick-empty-report: do not generate quick empty report if input ABI dumps are equal

Bug Fixes

• Fixed lists of affected symbols in the XML-format report.

Version 1.99.22 (July 04, 2016)
Improvements

• New style of the report

New Options

• -old-style: generate old-style report

Bug Fixes

• Fixed handling of patterns in -skip-* options
• Fixed rounding of the BC rate in the report

Version 1.99.21 (May 26, 2016)
Improvements

• Up to 4 times faster on big libraries
• Show compatibility rate instead of verdict in the report
• Highlight the numbers of high/medium/low severity problems in the report
• Show percentage of affected methods in the problem description

New Options

• -count-symbols: count public symbols in the ABI dump

Bug Fixes

• Fixed quick comparison of equal ABI dumps

Version 1.99.20 (May 14, 2016)
Improvements

• Use regular expressions instead of wildcards in -skip-* options

Version 1.99.19 (April 18, 2016)
Improvements

• Support for GCC 5.1

Misc

• Separated LICENSE file
• Removed obsolete descriptors from the package
• Updated docs

Version 1.99.18 (April 03, 2016)
Bug Fixes

• Fixed comparison of qualifiers in parameter data types
• Fixed problem descriptions in the report
• Reduced size of the report
• Fixed console output

Version 1.99.17 (March 12, 2016)
Improvements

• Added a check for changes in parameters of function pointers

Bug Fixes

• Fixed comparison of virtual table entries
• Do not show time stamp in the report
• Fixed -skip-symbols option
• Fixed detection of the GCC version number

Version 1.99.16 (January 28, 2016)
Improvements

• Do not check private part of the ABI when comparing ABI dumps created by the ABI Dumper tool with use of the -public-headers option

New Options

• -check-private-abi: enable check of the private ABI

Bug Fixes

• Fixed counting of checked data types

Version 1.99.15 (December 11, 2015)
Bug Fixes

• Fixed hang on some template instances
• Fixed support for old ABI dumps (formatting of data types)
• Fixed false positives in the report if input ABI dumps contain __unknown__ types

Version 1.99.14 (November 01, 2015)
New Options

• -skip-types: set list of types that should not be checked

Bug Fixes

• Fixed formatting of symbol signatures
• Fixed checks of template types

Version 1.99.13 (October 18, 2015)
Improvements

• Check public symbols only if comparing public ABI dumps generated by the ABI dumper (with -public-headers option)
• Added more metadata to the report

New Options

• -skip-internal-types: do not check data types matched by the pattern

Bug Fixes

• Fixed Type_Became_Opaque, Parameter_Changed_Register, Parameter_From_Register and Parameter_To_Register rules
• Fixed method signatures in the report (C++)
• Fixed -headers-list option
• Option -skip-internal renamed to -skip-internal-symbols
• Fixed false positives if vtable-dumper generates incomplete data
• Fixed Makefile

Version 1.99.12 (September 20, 2015)
Bug Fixes

• Fixed title of the report
• Print warning if version number is not set in the ABI dump

Version 1.99.11 (September 12, 2015)
Bug Fixes

• Fixed Removed_Field_And_Layout rule
• Fixed -skip-symbols option

Version 1.99.10 (September 08, 2015)
Improvements

• Improved style of the report
• New documentation
• Added more test cases

New Options

• -types-list: specify a list of types that should be checked
• -gcc-options: specify additional compiler options

Bug Fixes

• Limited number of affected symbols shown for each BC problem in the report
• Fixed check of the DataType_Size_And_Stack rule
• Fixed checks of base classes
• Carefully substitute parameters in rules
• Allow to check for source-compatibility in the -cmp-systems mode by specifying both -bin and -src options
• Fixed sorting of problems listed in the report
• Limit number of checked types if -headers-list option is specified
• Fixed -headers-list and -skip-symbols options
• Fixed cross-platform issues
• Set LANG=C.UTF-8 for objdump
• Fixed list of headers in the report
• Fixed number of checked headers in the report summary. Removed support for old dumps < 1.18
• Renamed -lib-full option to -title
• Carefully detect architecture of input objects and word size
• Corrected detection of the GCC target architecture
• More accurate checking of ABI dump names
• Fixed regressions with SysCheck.pm module
• Removed obsolete code and options
• Fixed the objdump command line when the path contains spaces
• Simplified Makefile
• Do not install system descriptors to PREFIX/share
• Take -relpath option into account in the SysCheck.pm module
• Fixed CSS styles of the CmpSystems module

Version 1.99.9 (January 23, 2014)
New Options

• -skip-internal: do not check internal interfaces matched by the pattern

Bug Fixes

• Fixed duplicated entries in the XML report
• Reduced size of the XML report
• Fixed duplicated problems related to changed size of a global data
• Options -v1 and -v2 can now be used when comparing ABI dumps to change library versions shown in the report
• Fixed false positives with the size change of a template instance type
• Fixed false positives with the change of a parameter/field type name

Version 1.99.8.5 (October 03, 2013)
Improvements

• Optimized performance and memory usage (up to 90%) on input objects with a huge number of changes and deep data type trees (e.g. Linux kernel)
• Partial support for GCC 4.8.{0-1}, waiting for a fix for the bug 57850 in the next GCC versions
• Support for incomplete ABI dumps

New Options

• -affected-limit
• -cpp-incompatible

Bug Fixes

• Fixed identification of template constructors and destructors
• Do not show "this" first argument of methods in the report
• Corrected descriptions of affected symbols in the report
• Fixed false alarms on changed offset of parameters
• Do not hang on class A<N>:public A<N-1>
• Corrected identification of header files in the include_preamble
• Corrected comparison of function pointer types
• Corrected rule Global_Data_Size

Other

• Code refactoring

Version 1.99.7 (July 01, 2013)
Improvements

• Added missed fields of template instance types to the ABI dump
• Improved support for old ABI dumps
• Added Struct_Field_Size_Increased rule
• Support for vector types (GCC extension)
• Removed duplicates from the ABI dump
• Corrected visualization of v-table content in the report
• Corrected identification of target headers
• Corrected source-compatibility check
• Performance optimization (5%)

New Options

• -check - to check completeness of the ABI dump

Bug Fixes

• Fixed default arguments of methods (broken in 1.99.1 due to added "this" parameter)

Other

• Extended test suite

Version 1.99.1 (June 07, 2013)
Improvements

• Support for ABI Dumper 0.97
• Show added/removed inline virtual functions in the binary compatibility report
• Added "this" hidden parameter to non-static class methods in the ABI dump

Bug Fixes

• Fixed XmlDump module
• Fixed CallConv module

Other

• Support for old ABI dumps

Version 1.99 (May 24, 2013)
Improvements

• Support for ABI Dumper 0.95
• Added 14 binary-compatibility rules
• Added 10 source-compatibility rules
• Improved model of type alignment
• Changed version of ABI dump format to 3.0
• Added _vptr member to virtual classes
• Added constants defined by GCC to ABI dump
• Improved analysis of constants

New Options

• -skip-symbols

Bug Fixes

• Increased severity of Field_Became_Non_Mutable rule

Other

• Support for old ABI dumps
• Extended test suite (+11 test cases)
• Code cleaning

Version 1.98.8 (February 07, 2013)
Improvements

• Show added and removed constants (#defines) in the report
• Show changes in unnamed enumerations
• Avoid false alarm about renamed field if old name of this field is defined to new (SC)
• Recursive comparing of structured data types in *_Format rules
• Added Typedef_BaseType_Format rule to check format changes in the typedef base type

New Options

• -tolerant
• -tolerance

Bug Fixes

• Increased severity of Parameter_BaseType_And_Size BC rule (Low to Medium)
• Increased severity of Added_Field SC rule (Safe to Low)
• Corrected handling of the tool error codes in the test suite
• Corrected handling of relative paths in the descriptor options
• Skipping linker-related options in gcc_options option of the descriptor
• Corrected internal mangler for C++ functions
• Corrected conditions for enabling of C++ compatibility mode
• Corrected handling of C++ keywords in C-code
• Corrected -extended option
• Corrected Typedef_BaseType rule
• Corrected parsing of default function arguments
• Do not check presence of archive utilities if not used
• Other fixes

Other

• Extended test suite
• Code cleaning

Version 1.98.7 (December 14, 2012)
Improvements

• Extended extra info dumped by -extra-info option
• Extended additional info dumped by -extra-dump option
• Added specifiers for structs, unions and enums in the report and ABI dump
• Improved support for old ABI dumps

Bug Fixes

• Corrected -debug option
• Corrected creating of archives with ABI dumps
• Corrected parsing of includes in header files
• Corrected processing of undefined symbols
• Corrected -app option
• Corrected processing of default paths to system libraries
• Corrected Makefile
• Other fixes

Other

• Code cleaning and refactoring

Version 1.98.6 (December 04, 2012)
Improvements

• Extended -extra-info and -extra-dump options

Bug Fixes

• Corrected processing of input XML descriptor
• Corrected "Parameter_Default_Value_Removed" rule
• Other fixes

Other

• Code cleaning

Version 1.98.5 (November 30, 2012)
Improvements

• Support for Mac OS X 10.8
• Support for OpenBSD
• Support for old GCC versions <= 4.2
• Added "throw" and "weak" attributes of methods to ABI dump

New Options

• -extra-info
• -extra-dump
• -force

Bug Fixes

• Corrected order of user-defined include paths
• Corrected internal C++ mangler
• Removed false positives of the "Parameter_Type_Format" rule
• Other fixes

Other

• Extended test suite
• Code cleaning
• Docs cleaning

Version 1.98.4 (October 18, 2012)
Improvements

• Optimization of memory usage (5%-10%) and performance (5%-10%)
• Added "Used Reserved Field" rule of binary compatibility analysis
• Improved design of the operating system compatibility report
• Added meta descriptors for 334 libraries

Bug Fixes

• Fixed an issue with diagnostics of added virtual functions
• Corrected the list of functions affected by the compatibility problem
• Avoid false alarm about removed function if this function became macro (SC)
• Corrected parser of C header files
• Other fixes

Other

• Extended test suite
• Code cleaning

Version 1.98.3 (July 19, 2012)
Improvements

• Implemented a model of calling conventions on x86 and x86_64
• Improved diagnostics of changes in function parameters and return value (distribution on registers and stack)

Bug Fixes

• Corrected parser of C++ header files to detect non-member functions inside namespaces

Other

• Added requirement for Ctags (5.8 or newer)
• Code cleaning

Version 1.98.2 (June 26, 2012)
Improvements

• Support for reading ABI dumps in XML format
• Automatic enabling of c++0x support if needed to compile headers

Bug Fixes

• Corrected XML and Perl (default) formats of ABI dumps
• Improved support for old ABI dumps
• Improved -dump-system option

Other

• Improved documentation

Version 1.98.1 (June 18, 2012)
Bug Fixes

• Removed symbols marked as LOCAL in a shared library from lists of added/removed symbols in source-compatibility report
• Fixed a false positive with some removed extern "C" symbols in source-compatibility report
• Fixed a bug with removed debug/ directory when using -use-dumps and -debug options together
• Added support for "skip_including" section of target system XML descriptors (modules/Targets) used by -dump-system option
• Extended XML ABI dumps by size attribute of library symbols

Version 1.98.0 (June 14, 2012)
New Features

• Implemented XML format of ABI dumps

New Options

• -dump-format

Bug Fixes

• Improved support for old ABI dumps
• Other fixes

Version 1.97.8 (June 08, 2012)
Improvements

• Redesigned format of ABI dump
• Optimization of memory usage (5%-10%) and performance (5%-10%)
• Improved support for GCC 4.0-4.5
• Added "add_namespaces" section of the XML descriptor

New Options

• -open
• -sort

Bug Fixes

• Improved support for old ABI dumps
• Fixed a bug with auto-detection of include paths when comparing two XML descriptors
• Corrected output of -debug option
• Corrected -dump-system and -cmp-systems options
• Other fixes

Other

• Code cleaning

Version 1.97.5 (May 14, 2012)
Improvements

• Extended ABI dumps by source-level type declarations
• Improved support for old ABI dumps
• Optimization of memory usage (20%-30%) and performance (10%-20%)

Bug Fixes

• Corrected auto-detection of a set of target headers to check/dump in -headers-only mode
• Other fixes

Other

• Extended regression test suite
• Code cleaning

Version 1.97.4 (April 16, 2012)
New Features

• Added 16 new binary-compatibility rules
• Added 17 new source-compatibility rules

Bug Fixes

• Added some missed typedef types to function signatures

Other

• Improved support for old ABI dumps
• Support for GCC 4.7
• Extended regression test suite
• Code cleaning

Version 1.97.3 (April 03, 2012)
Completed Tasks

• Implement source-level compatibility checks
• Implement 2.0 architecture

New Features

• Added -browse=PROG option
• Added -xml alias option for --report-format=xml
• Added -binary option to generate binary-compatibility report only
• Added -source option to generate source-compatibility report only
• Added -bin-report-path option: path to binary-compatibility report
• Added -src-report-path option: path to source-compatibility report

Other Features

• Improved debug mode (-debug)
• Improved mark-up of the HTML report
• Improved mark-up of the HTML report
• Improved support for old ABI dumps

Bug Fixes

• Corrected ABI dumps

Version 1.96.8 (February 17, 2012)
Completed Tasks

• Implement XML format of compatibility report
• Testing on MeeGo 1.2 Harmattan Beta2

New Features

• Added hidden statistics line to compatibility report for operating systems
• Added -headers-list option
• Added -lang option
• Support for symbolic links in /usr/include and /usr/lib
• Added "skip_include_paths" section of the XML-descriptor
• Added "skip_including" section of the XML-descriptor
• Added -list-affected option to create plain list of incompatible symbols
• Added -quiet option to print all errors and warnings to the log file instead of stderr and stdout
• Added -stdout option to print results to stdout
• Added an option to check binary compatibility in the extended sense
• Improve diagnostic messages for added base classes with virtual functions
• Added -update option to installer
• Added a relative default directory to locate modules after installation
• Compatibility rate = (high+1/2*medium+1/4*low) / number of symbols

Bug Fixes

• Some symbols with extern "C" linkage are missed in -headers-only mode
• Changes in global data are not detected under Windows
• False negative: change global data to be "const"
• Removed middle enumeration value is reported as renamed
• False positive: change parameter type from "const int" to "int"
• Support for old ABI dump format of ACC 1.21.6
• The tool doesn't search for included headers in /usr/lib/qt4/include/
• False Negative: Header is incompatible with itself
• Check libstdc++ in -headers-only mode
• Restrict checked header files in the -headers-only mode
• Problem with mangled C++ functions using old ABI dump formats in -headers-only mode
• Incorrect size of method pointer in ABI dumps
• False negative: add/remove "register" modifier of the parameter
• Incorrect WORD size when using old ABI dump format
• Conflict of a static method with a function of the same name in the ABI dump
• Missed right bracket of "func-ptr" type in HTML report
• Incorrect report for overridden methods
• False negative: override a virtual that doesn't come from a primary base
• False negative: change a function parameter to be "restrict"
• False negative: change a field to be "volatile"
• False negative: change "const"-ness of a return value
• False negative: change "volatile" attribute of a method
• False positive: removed symbols with inline virtual prototype in the leaf class with default constructor

Version 1.94 (September 09, 2011)
Completed Tasks

• Separated regression tests into the module

New Features

• Added Makefile.pl installer

Version 1.93.8 (September 08, 2011)
Completed Tasks

• Separated rules DB
• Testing on Symbian SDK
• Testing on Windows SDK
• Support for OS3000

New Features

• SONAME change in the OS comparison table
• Added a compatibility percentage to the OS comparison table
• Added -debug option
• Added listing of symbols in OS comparison table
• Use zip format of dumps in Windows
• Added -dump-system descriptor.xml option
• Analysis of static libraries
• Added -sysinfo option
• Added -component option
• Added -nostdinc option
• Added "weakly"- and "almost"-compatible verdicts
• Added "skip_namespaces" section of the library XML-descriptor
• Search for modules/ directory in the system

Bug Fixes

• Missed typedefs in the ABI dump using GCC 4.4.1
• False negative: change enum member value from zero to non-zero
• False negative: interchange the positions of two fields in a structure
• False positive: add a field instead of padding fields
• Problems with "copied" classes
• Changes in "private" fields
• Illegal modulus zero at abi-compliance-checker.pl
• Incorrect order of include paths
• Change constness of a class method
• False negative: change "struct Type" to "union Type"
• Change parameter type from "..." to "int"
• Remove/add "const"-qualifier of a method
• False negative: renamed parameters

Other

• Improved debug mode

Version 1.23.5 (July 01, 2011)
Bug Fixes

• Corrected exit codes: 0 - compatible, 1 - incompatible, 2 - error, ...
• Corrected diagnostic messages for C++ functions with changed signature
• Fixed regression with C++ non-member functions
• Removed false positive with overridden private methods
• Corrected functionality for checking binary compatibility of operating systems
• Removed false positive for removed default version of a symbol
• Adapted -dump-system option for MeeGo 1.2 Harmattan
• Fixed hanging execution on "#include "../../file.h"
• Fixed incorrect automatic include paths

Version 1.23 (June 07, 2011)
New Features

• Added 42 compatibility checks (total: 83)
• Improved diagnostics of compatibility problems
• Opened an issue tracker
• Support for cross-compilers
• Ported to Mac OS X (10.5) and MS Windows (Xp, Vista, 7)
• Added a viewer of "real" v-table layouts for changed C++ classes
• Added functionality to check OS backward compatibility
• Supports for old-version dump formats (>=1.18)
• Separated versioning of dump formats
• Improved design of the compatibility report
• Improved performance
• Support for old GCC 3.4.4

New Options

• -cross-gcc: support for cross-compilers
• -sysroot: specify the alternative system root directory
• -dump-system, -cmp-systems: checking OS backward compatibility
• -use-dumps: check for compatibility using the intermediate dumping
• -show-retval: show symbol's return value type in the report
• -old-dumps: support for old-version dumps
• -test-dump: test for dumping functionality
• -report-path: change the location of output compatibility report
• -dump-path: change the location of output ABI dump
• -log1-path, -log2-path: change the location of output logs

Bug Fixes

• Reduced false positives
• Support for C-headers containing C++ keywords
• Corrected automatic include paths for headers

Version 1.21.12 (April 29, 2011)
Bug Fixes

• Corrected automatic detection of include paths for header files
• Removed false positives with overridden virtual functions
• Corrected processing of typedef type names, fixed potential program hangup
• Added some missed problems relating to the return type changes of a function
• Corrected processing of a translation unit dump generated by modern GCC versions
• Corrected identifying of inline functions (using the -fkeep-inline-functions GCC option)
• Corrected parser for C++: analysis of const global data and functions inside a namespace
• Corrected names and v-table checks for template types
• Corrected checks for changes in enumerations
• Corrected ABI dumping and sorting of dumps
• Corrected analysis of added/removed virtual functions
• Corrected help message and documentation
• Documentation has been moved to "doc/" subdirectory
• Using File::Temp for storing temporary files
• Support for latest GCC 4.6.0 and old GCC v3.x series
• Fixed infinite loop finding the path for "which" command in the system
• Corrected distinction of descriptor kinds (headers, libraries, directories and XML-descriptors)
• Corrected processing of "include_paths" section of the XML-descriptor

Version 1.21 (August 19, 2010)
New Features

• Added -check-implementation option: compare disassembled binary code to detect changes in the interface implementation
• Added -objects-only option: compare shared objects without header files
• Added -v1 and -v2 options: specify version number outside the descriptor
• Improved help message
• Improved performance of the tool
• Removed template instances and stdc++ interfaces from the report (C++)
• Added README.html and CHANGES.html to the package

Bug Fixes

• Corrected ABI compatibility report
• Corrected interface names and versions in the report
• Corrected number of problems in report summary
• Corrected ABI dump

Version 1.20 (August 30, 2010)
New Features

• Added "defines" section of the library descriptor: this section allows to add defines at the headers compiling stage

Bug Fixes

• Corrected reports about added/withdrawn members in the structure types and added/withdrawn parameters
• Corrected report about added/withdrawn virtual functions if -headers_only option specified
• Corrected processing of header paths containing special characters

Version 1.19 (July 22, 2010)
New Features

• Added -library_full_name option to display full library name in title of the report
• Added -relpath option to replace the {RELPATH} in the descriptor for ABI dumping
• Added "skip_libs" section of the library descriptor: this section contains a list of shared objects and/or directories with shared objects that should not be processed
• Improved performance on big libraries

Bug Fixes

• Removed duplicated problems from the report
• Corrected names of the template instances
• Corrected checking of reference type changes
• Corrected titles in the report
• Corrected size of some array types
• Corrected checking of added/withdrawn members in the structure types with reserved members
• Corrected checking of added/withdrawn parameters

Version 1.18 (June 25, 2010)
New Features

• Added -relpath1 and -relpath2 options to replace the {RELPATH} in the descriptors; old option -relpath was removed
• Added "add_include_paths" section of the library descriptor: this section contains a list of include paths that should be added to the automatically detected include paths

Bug Fixes

• Added some previously missed compatibility problems in the report
• Corrected techniques for auto-detection of header file dependencies (include paths)
• Removed problems relating to the changes in the temporary header files
• Corrected interface signatures in the report
• Corrected checking of added/withdrawn parameters
• Corrected changes in the virtual tables of the libraries with symbol versioning
• Corrected checking of complex namespaces changes (C++)
• Added namespaces information to the ABI dump

Version 1.17.2 (June 16, 2010)
Bug Fixes

• Fixed -separately option
• Corrected permissions of LICENSE file
• Corrected tool description

Version 1.17.1 (June 09, 2010)
New Features

• Added -relpath option for adding prefixes to the paths in the library descriptor

Bug Fixes

• Corrected checking of added/withdrawn parameters
• Corrected processing of mixed C/C++ header sets
• Corrected checking of parameter type changes

Version 1.17 (June 08, 2010)
New Features

• Visualizing of the serious changes (added/withdrawn parameters) in the interface signature
• Recursive analysis of constant changes
• Separated stderr and stdout streams of the tool
• Added "skip_constants" section of the library descriptor to skip checking of some constants
• Added -params option to add function parameter names to the report

Bug Fixes

• Corrected analysis of virtual table layout changes
• Corrected analysis of parameter type changes
• Corrected complex array type names
• Corrected typedef names
• Corrected analysis of structure layout changes
• Fixed tool hanging on some C++ headers (with many namespaces)
• Corrected analysis of Glibc headers
• Corrected analysis of library language changes (if added some C++ headers)
• Corrected descriptions of some compatibility problems
• Corrected analysis of added/withdrawn parameters in C headers

Version 1.16 (May 05, 2010)
New Features

• Added -strict option for treating all compatibility warnings as problems
• Added -dumpversion option for printing tool version and don't do anything else
• Ignoring hidden .svn, .git, .bzr, .hg, and CVS directories
• Improved header files sorting for protecting from compilation errors on the intermediate phase of temporary header file compilation
• Improved techniques for auto-detection of header file dependencies (include paths)
• Ignoring problems related to changes of constants (defines) describing library version (*_VERSION_*, *_COPYRIGHT_* and other)
• New internal test cases

Bug Fixes

• Checking of some previously missed C++ namespaces
• Removed hidden "void const** __vtt_parm" parameters from signatures of some constructors
• Corrected dumping of C++ classes ABI
• Corrected checking of pure virtual destructors
• Removed unnecessary built-in constants from the ABI dump

Version 1.15 (March 26, 2010)
New Features

• The license was changed to dual GNU GPL and LGPL
• Added "skip_headers" section of the library descriptor

Bug Fixes

• Corrected processing of "include_paths" section of the library descriptor
• Corrected processing of relative paths in the "headers" and "include_paths" sections of the descriptor
• Directory with temporary files renamed from "temp" to hidden ".tmp_dir"
• Corrected processing of shared object dependencies
• Corrected processing of some previously missed functions and conversion operators in C++
• Corrected internal test suite
• Corrected some error messages

Version 1.14 (March 03, 2010)
New Features

• Added techniques to auto-detect dependencies of a header file (include paths); providing of "include_paths" section of the descriptor is not necessary for now
• Ported to FreeBSD and Haiku
• Added check for gcc/g++ version (>=3.0.0)
• Added sorting of interface problems by namespace in the report (C++)
• Improved internal test suite
• Added log for describing tool actions and occurred errors
• Added exit error code (high/medium risk for ABI break)

Bug Fixes

• Corrected ABI dumping
• Corrected styles of the report

Version 1.13 (February 16, 2010)
New Features

• Added -version option

Bug Fixes

• Corrected processing of tab characters in the descriptor
• Corrected help message
• Corrected descriptor template structure
• Corrected error and warning messages
• Corrected processing of shared object dependencies

Version 1.12 (December 04, 2009)
New Features

• New help message
• Highlighting of [in-charge], [not-in-charge] constructors and destructors in the report was improved
• New option -time for enabling time measurements
• New internal test cases

Bug Fixes

• Corrected classification of compatibility problems in the report
• Reduced priority of problems related to changes in a method's object
• Corrected complex template type names

Version 1.11 (November 10, 2009)
New Features

• Added -app option to check portability of applications to the new library version
• Memory usage decreased twice

Bug Fixes

• Corrected checking of added middle structure members
• Corrected names of template types (with intrinsic, bool and string parameters)
• Corrected highlighting of function signatures in the report

Version 1.10 (November 02, 2009)
New Features

• Checking added/dropped function parameters (C language only)
• Improved design of the report
• New internal test cases

Bug Fixes

• Incorrect checking of redefined virtual functions and differences in parameter types
• More careful checking of withdrawn interfaces using shared library dependencies

Version 1.9 (October 12, 2009)
Improvements

• Improved design of ABI compliance report
• Improved algorithms of checking parameter/field type change
• New internal test cases

Bug Fixes

• Fixed incorrect names of typedefs and function pointer types
• Checking of some previously missed C++ functions
• Removed some false positives from the report (for anon-types)

Version 1.8 (September 29, 2009)
New Features

• Added ability to specify a file with a list of interfaces that should be checked

Bug Fixes

• Size of ABI info dumps have been reduced through removing of unnecessary information
• Incorrect names of template instances and function pointer types
• Incorrect positions of function parameters in the "Interface Problems" section of the report
• Removed some false positives from the report
• Incorrect handling of special symbols in the paths to header files and shared objects

Version 1.7 (September 11, 2009)
New Features

• Checking of incorrect symbols versioning
• Checking the values of defines (constants)
• Ability to check header files without shared objects; It is easy to run, but may provide a low quality report with a lot of false positives and without detecting of added/withdrawn interfaces
• Number of checked interfaces and data types in the report
• Added tests for checking new features

Bug Fixes

• Incorrect processing of duplicated headers in the input set (headers with the same name but different paths)
• Incorrect header files include order
• Sorting in the ABI dumps
• Incorrect processing of redefined virtual methods
• Incorrect processing of anon types
• Absence of some necessary information about C++ functions in the ABI dumps

Version 1.6 (August 31, 2009)
Bug Fixes

• Corrected processing of relative paths in the library descriptor
• Display machine hardware name instead of processor type in the report
• Fixed grammar/spelling errors
• Renamed "internal_interfaces" section of the library descriptor to "skip_interfaces"
• Cosmetic changes in the code

Version 1.5 (August 25, 2009)
Bug Fixes

• Absent information about opaque types and internal interfaces has been added to the ABI dump
• Fixed style of the report
• Fixed grammar/spelling
• Renamed "internal_functions" section of the library descriptor to "internal_interfaces"
• Renamed outptu ABI dump to "*.abi.tar.gz" (previously it was "*.info.tar.gz")
• Corrected interface names in the report (for -separately option)

Version 1.4 (August 18, 2009)
Improvements

• Added ability to check ABI compliance of library versions located on different machines
• Header files checking mode by default has been changed: checking all header files together instead of separate checking

Bug Fixes

• Incorrect description for affected interfaces
• Incorrect virtual table checking

Version 1.3 (August 14, 2009)
Bug Fixes

• Incorrect number of binary compatibility problems in the report summary
• Incorrect design of problem descriptions in the report

Version 1.1 (August 06, 2009)
Improvements

• Design of the report has been greatly improved

Version 1.0 (July 31, 2009)
Initial version of the tool.