MMTk OpenJDK Binding 0.18.0

• Support the StickyImmix plan.
• Fix a bug in the C2 compiler where we may update an object without any write barrier if C2 performs deoptimization and
  triggers a GC in deoptimization. We use object_probable_write to properly log the object.
• Update to OpenJDK 11.0.19+1 (jdk-11.0.19+1-mmtk).
• Update to mmtk-core 0.18.0.

MMTk OpenJDK Binding 0.17.0

• MMTk OpenJDK binding now uses Rust 1.66.1 and MSRV is 1.61.0.
• Support dynamic heap resizing (enabled when Xmx and Xms values are different).
• Remove all inline directives. We rely on Rust compiler and PGO for inline decisions. Add provide a PGO guide.
• Fix a crash caused by null pointer access if the VM calls CollectedHeap::soft_ref_policy().
• Update to mmtk-core 0.17.0.

MMTk OpenJDK Binding 0.16.0

• MMTk OpenJDK binding now uses Rust edition 2021.
• Support MMTk's native mark sweep plan.
• Rename a few functions so they have consistent names across Rust and C++.
• Fix a compilation error when barrier fast path is disabled.
• Fix the wrong function pointer type in Rust that refers to a native function pointer.
• Update to mmtk-core 0.16.0.

MMTk OpenJDK Binding 0.15.0

• Add MMTk build info to -Xinternalversion.
• Implement arraycopy barriers.
• Update to mmtk-core 0.15.0.

MMTk OpenJDK Binding 0.14.1

• Fix a bug that MMTk gets initialized even when we are not using MMTk's GC.

MMTk OpenJDK Binding 0.14.0

• Remove incorrect MMTkRootScanWorkScope.
• Remove unused compute_*_roots functions.
• Optimize CodeCache roots scanning.
• Fix a bug that mmtk_start_the_world_count may be incorrect.
• Update documentation about evaluation builds.
• Inlucde Cargo.lock in the repository.
• Update to mmtk-core 0.14.0.

MMTk OpenJDK Binding 0.13.0

• Fixes a bug that may cause programs to hang in stop-the-world synchronization.
• Updates to mmtk-core 0.13.0.

MMTk OpenJDK Binding 0.12.0

• Adds a few missing includes.
• Adds weak reference support (It is disabled by default. Set MMTk option no_reference_types to false to enable it).
• Fixes a bug in C2 allocation fastpath generation for mark compact which caused significant slowdown for mark compact allocation.
• Fixes a bug in transitioning thread state for the harness_begin call which may cause a 'deadlock in safepoint code' error.
• Updates the OpenJDK version to 11.0.15+8.
• Updates to mmtk-core 0.12.0.

MMTk OpenJDK Binding 0.11.0

• The OpenJDK submodule is removed from the repo. We now record the VM version
  in [package.metadata.openjdk] in the Cargo manifest Cargo.toml.
• The OpenJDK binding now builds with stable Rust toolchains.
• Removes object_alignment from OpenJDK_Upcalls.
• Implements ObjectModel::get_reference_when_copied_to().
• Updates to mmtk-core 0.11.0.

MMTk OpenJDK Binding 0.10.0

• Implements a fastpath for ObjectModel::get_current_size() in Rust.
• Supports setting MMTk options by -XX:THIRD_PARTY_HEAP_OPTIONS=.
• Supports proper OutOfMemory exceptions.
• Upudates to mmtk-core 0.10.0.