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2.2.0 (Unreleased)

  • Move the following utility functions into the gtirb namespace: alignAddr, alignmentAdjustment, BumpPtrAllocator, isPowerOf2_64, SpecificBumpPtrAllocator, cast, cast_or_null, dyn_cast, dyn_cast_or_null, isa. For backwards compatibility, these functions remain available, but deprecated, in the global namespace unless GTIRB_WRAP_UTILS_IN_NAMESPACE is defined.

2.1.0

  • Stop generating debian metapackages and packages with the version attached to the package name. Updates in the apt-repository now support multiple package versions and upgrading gtirb with apt-get upgrade.
  • Fix performance issue when checking references of ProxyBlocks in Python API.
  • Add elfSoname AuxData definition
  • ByteInterval's blocks' sort order is now thoroughly defined: offset, size, kind, decode mode, and UUID. Adjusting these properties during iteration may cause blocks to be skipped or visited twice.
  • Added ByteInterval methods to the Python API to look up blocks by offset on.

2.0.0

  • The Java API has been substantially reworked. Including:
    • Most of the core API classes now have a more polished interface.
    • The API for handling AuxData has been completely redesigned.
    • New testing infrastructure based on JUnit5 has been added.
    • More extensive test cases have been added.
  • Add elfStackExec and elfStackSize AuxData definitions
  • Add IR.modules_named helper method to Python API.
  • Add IR.findModules(String name) helper method to Java API.

1.12.0

  • Add elfDynamicInit and elfDynamicFini AuxData definitions

1.11.0

Note that this release, due to changes to the protobuf definitions of symbolic expression attributes, is backwards-incompatible with previous GTIRB files.

  • Replace symbolic expression attributes with composable labels.

1.10.9

  • Added support for bool values in AuxData.
  • Added elfSymbolVersions provisional AuxData definition.
  • The GTIRB file format has changed to include a prefix containing a "magic" identifier and the GTIRB protobuf version number to allow easier id of GTIRB files. The change is not backwards compatible. Newer versions of GTIRB will not be able to load older GTIRB files.
  • Converted the decode mode from an arbitrary integer into a ProtoBuf enum. This obviously breaks compatibility with older GTIRB files.

1.10.8

  • Ubuntu 18 and gcc7 are no longer supported.

1.10.7

  • Added support for floating-point numbers in AuxData.
  • Disabled testing the Python API using setup.py test. The tests can still be run using ctest or Python's unittest module.
  • Improved the performance of the Python API's ByteBlock.references property.
  • Fixed a pair of bugs in C++ support for variants in AuxData

1.10.6

  • Added type annotations to python API and made them available in package.
  • Removed install-python target.

1.10.5

  • Added various symbolic expression attributes.
  • Updated Java API

1.10.4

  • Removed SymStackConst support
  • Added variant (union) support for AuxData
  • Removed address and size from modules
  • Modified Module::findSections(string) to return a range instead of iterator
  • Added IR::findSection(string) to C++ API

1.10.3

  • Added offset helpers to Python API
  • Better support for std::byte when working with ByteInterval
  • Fixed a bug which manifested when serializing a big-endian IR

1.10.2

  • Updated "address" iteration order to compare size if addresses are the same and UUIDs if addresses and sizes are the same so that it can be used to store objects in ordered containers.
  • Fixed some bugs where modifying an object's address or size would cause findNodeOn to return incorrect results.
  • Improved performance of findNodeOn and findNodeAt queries.

1.10.1

  • Added module-level endianess flag, for use in archtectures with multiple possible endians for its code blocks.
  • Introduce iteration helpers cfgPredecessors and cfgSuccessors.

1.9.0

  • Introduce attributes for symbolic expressions to the core IR.
  • Reduce asymptotic complexity of iterating over blocks in a large number of byte intervals.
  • Fixed bug where searching for blocks by address could return incorrect matches.
  • Fixed bug where ByteInterval::addBlock would refuse to move an existing block to a new offset if it was already present.

1.8.5

  • Make Python Offset objects immutable and make Offsets equivalent when they refer to the same displacement from the same element.

1.8.4

  • Fix bug where Symbol iteration could get out of order when symbols refer to blocks in byte intervals that are relocated.

1.8.3

  • Fix bug that didn't add CodeBlocks to the CFG if the CodeBlocks were added to a ByteInterval before it was added to the IR.

1.8.2

  • The C++ API build no longer generates a libgtirb.so.1 symlink. This has the effect of requiring clients to link against the full version number (e.g., libgtirb.so.1.8.2) to ensure ABI compatibility while we continue to make rapid improvements to the library.

1.5.0

  • In the Python API:
    • Removed Node.from_uuid and added get_by_uuid to IRs. This changes UUID lookup from a global cache to a per-IR cache; this means you can now have two IRs exist that share UUIDs but have different contents, for example.
    • Added convienience properties to all node types to find the parent nodes they belong to.

1.4.6

  • Implement std::hash for Addr objects.

1.4.5

  • Explicitly disable copy and move constructors for the Node class hierarchy in C++. This avoids a class of errors where nodes cannot be found by Node::getByUUID.

1.4.4

  • Build/install libgtirb.so.1 symlink on linux.

1.4.3

  • Remove the python-egg cmake target, add the python-wheel cmake target

1.4.2

  • Don't use __declspec(dllimport) on Windows.

1.4.1

  • Add ISA enums for PPC64, ARM64, MIPS32, and MIPS64.

1.3.2

  • Access functions for converting to/from protobuf are no longer public in the C++ API.
  • The proto library is no longer dllexported.
  • GTIRB_EXPORT_API no longer uses dllimport on the client side.

1.3.1

  • No longer installs Python files by default. Added a new 'install-python' target to install Python files.

1.3.0

  • Added a new field to symbols, at_end, which allows symbols to point to the end of their referents as well as the beginning.

1.2.1

  • Moved protobuf definitions into gtirb.proto package (gtirb::proto namespace in C++).
  • Installing the Python API now respects CMAKE_INSTALL_PREFIX and DESTDIR with their usual semantics.

1.2.0

  • AuxData and AuxDataContainer in the C++ API have been reworked to provide cleaner type safety.
    • AuxData is now retrieved directly from an AuxDataContainer using a schema class that specifies both the name of the AuxData object as well as its type.
    • Schemata for AuxData types must be registered at process startup before GTIRB objects are constructed or unserialized.

1.1.1

  • Fixed a bug where changing the address of a block caused lookups of symbol by address to fail in some cases.

1.1.0

  • Added a new API for accessing GTIRB, written in Java. This API is not yet released, and as such, has missing features, is not yet documented, and may change at any time. For more information, look at the contents of the java directory.

1.0.0

This is a major backwards-incompatible release. The protobuf specification has changed significantly resulting in protobuf version 1 which is now tracked in version.txt in the base of this repository. (The original protobuf version was version 0.) The changes in this release are primarily intended to enable binary rewriting use cases on GTIRB. Other changes to the protobuf specification are for more general cleanup, simplification, and clarification. In addition, a new Common Lisp GTIRB API is now included along with the C++ and Python APIs. A list of specific changes follows. Complete documentation of all new objects and structures is provided in the GTIRB manual.

  • A version field is now present on GTIRB IR instances. The value of this field is now 1. The old value of 0 is the protobuf default for a missing field.
  • The control flow graph (CFG) is now a child of the IR instead of living under a specific module. This means that a multi-module IR now has a single pan-module CFG.
  • The Block object has been renamed to CodeBlock and the DataObject to DataBlock.
  • A new object has been added to the GTIRB Sections named ByteIntervals. This replaces the ByteMap in the previous GTIRB version. A ByteInterval has:
    • An optional fixed address indicating its location in memory. Without an address the location of the ByteInterval is not specified allowing it to float to enable easier binary rewriting.
    • A size specifying the extend of the ByteInterval in memory. If this size is larger than the contents of the ByteInterval then the extension of the ByteInterval in memory beyond the end of the contents is un-allocated.
    • A byte vector named contents holding the contents of the ByteInterval.
    • A map from offsets to symbolic expressions.
    • A list of blocks holding CodeBlocks and DataBlocks.
  • The address field has been removed from Blocks.
  • The address and size fields have been removed from Sections.
  • An offset from the start of their ByteInterval have been added to blocks.
  • The following fields have been removed from Modules:
    • image_byte_map
    • symbolic_operands
    • blocks and
    • data.
  • An entry point stored as a CodeBlock has been added to Modules.
  • A list of ByteIntervals has been added to Sections.
  • The ISAID enumeration on module is renamed to ISA.
  • Instead of an AuxDataContainer object we now hold a map<string, AuxData> on modules and IRs.
  • The following GTIRB enumerations are modified: ISA, FileFormat, SymbolKind, and SectionFlag. The goals of these modifications is to simplify the enumerations and ensure that all included options are both necessary and orthogonal.
  • Sections now include have SectionFlags to store common properties such as readable, writeable, or executable.

0.3.0

  • You can now enable and disable the building of certain APIs when calling CMake, via the following flags:
    • GTIRB_CXX_API to control the building of the C++ API, on by default
    • GTIRB_PY_API to control the building of the Python API, on by default if python3 is installed on your system
  • The following changes have been made to the Python API:
    • Serialization.decode can now take a bytes object in addition to a BytesIO object.
    • If an unknwon type is encountered while decoding AuxData, it will be placed in data as a bytes-like object instead of throwing a DecodeError. Unknown data decoded this way can be then encoded again. It is still an error to encode unknown types of auxdata not in the manner described above.
  • ImageByteMap::setData() has been extended to support arbitrary iterator types.
  • We now build documentation for the Python API using Sphinx. To generate all documentation locally, call make doc after calling cmake; this will generate both C++ and Python API documentation. To only make one or the other, call make doxy or make sphinx, respectively.
    • Making the Sphinx documentation will require the following Python packages: 
      pip3 install sphinx sphinx-autodoc-typehints

0.2.0

  • Added a new Python API, meant to be a high-level wrapper over the Protobuf-generated one. To make use of it, add the python folder from your build directory to your PYTHONPATH. The package is named gtirb.
  • CMake now won't automatically download and install its dependencies, so that the user has control over which versions are in use. The version requirements for Boost and Protobuf are listed in README.md.
  • Updated the sanctioned AuxData definitions.
  • Fix for build issue when using Boost 1.71.0.

0.1.1

  • Initial public release.