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ChangeLog
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== [8.0.4] 2019-03-02 ==
* Avoid a full GC when growing finalizer tables if in incremental mode
* Avoid potential race in hb_sz access between realloc and reclaim_block
* Avoid test.o rebuild on tests folder timestamp change (Makefile.direct)
* Avoid unexpected heap growth in gctest caused by GC_disable
* Ensure result of every variant of MS_TIME_DIFF has unsigned long type
* Fix 'duplicate symbol' error for tests using multiple static libs (OS X)
* Fix 'undefined reference to __data_start' linker error (Android/aarch64)
* Fix 'unexpected mark stack overflow' abort in push_all_stack
* Fix 'wrong __data_start/_end pair' error on Android
* Fix BSD_TIME variant of MS_TIME_DIFF for the case of a.tv_usec < b.tv_usec
* Fix GetThreadContext stale register values use if WoW64 (Win32)
* Fix invalid initializer of CLOCK_TYPE variables if BSD_TIME
* Fix thread_info() count argument value (OS X)
* Support de_win.c compilation by Makefile.direct (cord/de)
== [8.0.2] 2018-12-23 ==
* Abort with appropriate message if executable pages cannot be allocated
* Add initial testing of GC_enable/disable, MALLOC[_ATOMIC]_IGNORE_OFF_PAGE
* Add paths to filenames mentioned in the copyright section in README
* Add test using disclaim notifiers to implement a weak map
* Adjust #error messages format
* Allow to force executable pages allocation in gctest
* Avoid potential 'macro redefinition' errors for config.h macros
* Call real pthread_sigmask instead of its wrapper in start_mark_threads
* Check result of pthread_mutex_unlock in specific.c
* Default to a single-threaded build for Nintendo, Orbis, Sony PSP targets
* Default to non-executable memory allocation across all make scripts
* Define GC_ATOMIC_UNCOLLECTABLE and JAVA_FINALIZATION in all make scripts
* Do not prevent GC from looking at environment variables (BCC_MAKEFILE)
* Do not use 'ifndef AO_CLEAR' in mark, pthread_support and gctest
* Do not use spin locks if AO test-and-set is emulated (pthreads)
* Document HANDLE_FORK macro optional usage in Makefile.direct
* Document assertion in the setters that used to return old value
* Eliminate 'assigned value never used' compiler warning in test_cpp WinMain
* Eliminate 'casting signed to bigger unsigned int' CSA warning
* Eliminate 'different const qualifiers' MS VC warnings in cordbscs
* Eliminate 'function is never used' cppcheck warning for calloc/realloc
* Eliminate 'non-virtual destructor for class with inheritors' CSA warning
* Eliminate 'pointer targets differ in signedness' compiler warning (Win32)
* Eliminate 'struct member is never used' cppcheck warnings in os_dep
* Eliminate 'uninitialized var' cppcheck false positive in mach_dep, os_dep
* Eliminate 'unreferenced formal parameter' compiler warning in msvc_dbg
* Eliminate redundant check in backwards_height
* Fix 'USE_MUNMAP macro redefinition' error for NaCl
* Fix 'collecting from unknown thread' abort in leak-finding mode for Win32
* Fix 'mprotect remapping failed' abort on NetBSD with PaX enabled
* Fix 'too wide non-owner permissions are set for resource' code defect
* Fix GC_VSNPRINTF in cordprnt for DJGPP and MS VC for WinCE
* Fix GC_register_disclaim_proc for leak-finding mode
* Fix a deadlock in write_fault_handler if AO_or is emulated
* Fix comment typo in CMakeLists.txt
* Fix concurrent bitmap update in GC_dirty
* Fix deadlocks in write and suspend handlers if AO test-and-set is emulated
* Fix executable memory allocation in GC_unix_get_mem
* Fix hbp overflow in GC_install_counts
* Fix linkage with a system libatomic_ops shared library
* Fix lock assertion violation in get_index if GC_ALWAYS_MULTITHREADED
* Fix marking of finalizer closure object
* Fix marks and hb_n_marks consistency when disclaim returns true
* Fix memory allocation on GCF (Linux/x64)
* Fix missing curses.h in cord/de when compiling manually (MS VC, MinGW)
* Fix test_cpp assertion violation in find-leak mode
* Fix tests linkage with internal atomic_ops.o
* Fix unneeded end_stubborn_change/ptr_store_and_dirty in disclaim_test
* Guard against potential buffer overflow in CORD_next and CORD_pos_fetch
* New macro to suppress printing of leaked objects
* Pass -Wall -Wextra -Wpedantic to g++ if supported (configure)
* Prefix internal durango_get_mem symbol with 'GC_'
* Prevent double inclusion of javaxfc.h and private/specific.h
* Print relevant message in tests not appropriate for leak detection mode
* Reduce scope of local variables in GC_remove_all_threads_but_me
* Refine HIDE_POINTER documentation for the case of the leak-finding mode
* Refine documentation in gc_disclaim.h
* Remove extra USE_MMAP definition for Interix
* Remove redundant header double-inclusion checks in the private headers
* Remove strlen calls with a constant string argument in msvc_dbg
* Specify register_disclaim_proc and finalized_malloc argument as non-null
* Support UWP/arm64 target
* Test marking of finalizer closure object in disclaim_test
* Turn off leak detection mode explicitly in cord/de
* Turn off parallel marker, thread-local allocation if used AO ops emulated
* Turn on gcj functionality in BCC, DMC, NT, OS/2, WCC makefiles
* Turn on memory unmapping in BCC/DMC/NT/WCC makefiles and Makefile.direct
* Update NO_EXECUTE_PERMISSION documentation
* Update documentation about arm64 ABI in gcconfig.h
* Use AO_or in async_set_pht_entry_from_index if available
* Use GC_WORD_MAX macro across all C source files
* Use macro to operate on a flag residing in GC_stop_count
* Use standalone private macro to guard against ptr_t redefinition
* Workaround '#error' cppcheck messages in backgraph and private headers
* Workaround 'AST broken' syntax error reported by cppcheck in GC_mark_some
* Workaround 'GC_dump function is never used' cppcheck warning
* Workaround 'local address assignment to a global variable' CSA warning
* Workaround 'local variable end shadows outer symbol' cppcheck warnings
* Workaround 'local variable obj_displ shadows outer symbol' cppcheck warning
* Workaround 'nonlocal var will use ptr to local var' cppcheck false positive
* Workaround 'pointer addition with NULL pointer' cppcheck error in msvc_dbg
* Workaround 'potential non-terminated string' false positive in cordbscs
* Workaround 'value of _MAX_PATH is unknown' cppcheck warning
* Workaround cppcheck warnings regarding CLOCKS_PER_SEC, REDIRECT_REALLOC
== [8.0.0] 2018-09-05 ==
* Accept Android platform by both CMake and configure
* Access finalize_now atomically to avoid TSan warning without no-sanitize
* Acknowledge thread restart from suspend_handler (NetBSD)
* Add a sanity check that load_acquire and store_release are available
* Add AO primitives implementation to GC based on C11 atomic intrinsic
* Add assertion for suspend_ack_sem in start_world
* Add assertion to allocobj that live unmarked object cannot be reclaimed
* Add assertions about held lock when accessing all_bottom_indices
* Add assertions to ensure ADD_CALL_CHAIN is called holding the lock
* Add assertions to finalize and threads support for MANUAL_VDB needs
* Add basic calculation of the total full-collection time
* Add check that gc_cpp operator delete is called (test_cpp)
* Add debug logging to new_thread about GC_threads hash table collisions
* Add GC prefix to _MSVC_DBG_H macro
* Add initial RISC-V support
* Add Makefile target to run all tests without test-driver
* Add test_atomic_ops to perform minimal testing of used atomic primitives
* Add two-argument alloc_size attribute to calloc_explicitly_typed (GCC)
* Align IRIX/OSF1_THREADS definition in gc_config_macros.h with gcconfig.h
* Allocate non-executable memory by default (CMake)
* Allow compilation of PROC_VDB code on Linux host (GC_NO_SYS_FAULT_H)
* Allow configure --with-libatomic-ops=none to use GCC atomic intrinsics
* Allow custom N_LOCAL_ITERS and ENTRIES_TO_GET values
* Allow disabling of dynamic loading in CMake script and configure
* Allow disabling of main static data registration in CMake and configure
* Allow disabling of threads discovery in CMake script and configure
* Allow gc_assertions enabling in CMake script
* Allow gc_debug, redirect_malloc, large_config options in CMake script
* Allow GC_NETBSD_THREADS_WORKAROUND macro manual definition
* Allow mmap enabling in CMake script and configure
* Allow passing -D DEFAULT_VDB to CFLAGS
* Allow subthreadcreate_test to be compiled with zero NTHREADS
* Allow to turn on spin locking even if thread-local allocations are used
* Always include gc_atomic_ops.h unless threads are disabled
* Avoid 'Unexpected heap growth' in 64-bit multi-threaded gctest if n_tests=1
* Avoid duplication of code handling pthreads case in configure
* Avoid potential data race during apply_to_each_object(reset_back_edge)
* Avoid potential data race during GC_dump execution
* Avoid potential race between malloc_kind and mark_thread_local_fls_for
* Avoid potential race between realloc and clear_hdr_marks/reclaim_generic
* Avoid potential race in print_static_roots called by dyld_image_add/remove
* Avoid potential race in SET_MARK_BIT_EXIT_IF_SET if parallel marking
* Avoid potential race when accessing size_map table
* Avoid potential race when storing oh_back_ptr during parallel marking
* Avoid SIGSEGV during GC_INIT on some Android devices
* Build only shared libraries by default (configure)
* Change pointer arguments of push_all[_eager]/conditional API to void* type
* Change type of hb_sz field (of hblkhdr) from size_t to word
* Check consistency of descr, adjust, clear arguments of GC_new_kind
* Check that GC_WIN32_PTHREADS is not specified for Cygwin
* Check thread_local is initialized before accessing thread_key
* Collapse multiple BCOPY_EXISTS macro definitions
* Collapse multiple NT_*_MAKEFILE scripts into a single NT_MAKEFILE
* Collapse multiple page_was_dirty, remove_protection, read_dirty definitions
* Compile checksums.c only if --enable-checksums is given (configure)
* Consistently define WIN32_LEAN_AND_MEAN/NOSERVICE before include windows.h
* Convert .html files to Markdown format
* Convert code of .c files to valid C++ code
* Decide between memory unmapping and mprotect-based dirty bits at runtime
* Declare t local variable in the block where the variable is used
* Define ABORT() using _CrtDbgBreak (if available) on Windows host
* Define CLANG/GNUC_PREREQ macros to check gcc/clang minimum version
* Define DYNAMIC_LOADING for Darwin unless IGNORE_DYNAMIC_LOADING
* Define GC_ASSERT(x) as C assert(x) for external clients of gc_inline.h
* Define GC_PREFETCH_FOR_WRITE to __builtin_prefetch in gc_inline.h (GCC)
* Define GC_THREADS instead of GC_x_THREADS in Makefiles
* Define macro to specify the environment file name extension (Win32/WinCE)
* Define static resend_lost_signals(), restart_all() in pthread_stop_world
* Detect sigsetjmp() availability by configure
* Determine whether to use compiler TLS for kFreeBSD at compile time
* Do not call BCOPY and BZERO if size is zero
* Do not call sem_getvalue in stop_world if one thread exists
* Do not call set_handle_fork(1) in gctest if pthread_atfork not supported
* Do not compile pcr_interface.c and real_malloc.c except by PCR-Makefile
* Do not declare dl_iterate_phdr as weak for kFreeBSD
* Do not include windows.h when compiling gc_cpp.cc
* Do not install gc_allocator.h, gc_disclaim.h unless the features enabled
* Do not merge dynamic root with the existing static one in add_roots_inner
* Do not print n_rescuing_pages value if incremental collections disabled
* Do not push cpsr and frame pointer on Darwin/arm and Darwin/arm64
* Do not rebuild_root_index unless remove_root_at_pos is called
* Do not specify version info for test libraries (Automake)
* Do not use alternate thread library on Solaris
* Do not use asm in GC_pause
* Do not use PKG_CHECK_MODULES in configure
* Do not use system clock consistently if NO_CLOCK
* Do not use x86 asm in PUSH_CONTENTS_HDR for NaCl
* Document GC_BUILTIN_ATOMIC macro (and gc_atomic_ops private header file)
* Document STACK_NOT_SCANNED macro in gcconfig.h (Emscripten)
* Eliminate 'comparison is always false' code defect in get_maps
* Eliminate 'GC_DEBUG redefined' compiler warning in smashtest
* Eliminate 'potential unsafe sign check of a bitwise operation' code defect
* Enable alternative finalization interface (DISCLAIM) in all makefiles
* Enable compilation for Cygwin with MPROTECT_VDB
* Enable handle-fork and memory unmapping by default
* Enable mprotect-based incremental GC for Win64 (GCC)
* Expose API to control rate and max prior attempts of collect_a_little
* Expose API to control the minimum bytes allocated before a GC occurs
* Fix 'comparison of 255 with expr of type bool' error in gc_atomic_ops.h
* Fix 'doc' files installation folder
* Fix build of cord tests as C++ files (Makefile.direct)
* Fix comment typos in backgraph.c, de.c, gcconfig.h
* Fix delete operator redirection if gc_cpp is built as .dll (Cygwin, MinGW)
* Fix start_world not resuming all threads on Darwin
* Fix test_cpp failure in case GC_DEBUG is defined
* Group common defines for POSIX platforms in configure and CMake scripts
* Guard against USE_PTHREAD_LOCKS and USE_SPIN_LOCK are both defined
* Handle pthread restart signals loss if retry_signals
* Hide value stored to thread-specific entries for a test purpose
* Implement FindTopOfStack(0) for ARM and AArch64 (Darwin)
* Implement memory unmapping for Sony PS/3
* Imply configure --single-obj-compilation if --disable-static
* Include malloc.c in extra/gc.c after include gc_inline.h
* Increase MAX_HEAP_SECTS (10 times) for large-config
* Initial single-threaded support of Interix subsystem
* Initial support of Nintendo, Orbis, Sony PSP2, WinRT, Xbox One
* Initial support of TIZEN platform
* Install gc.3 man page instead of copying gc.man to doc folder (configure)
* Make extend_size_map() static (code refactoring)
* Make subthreadcreate test compilable even without libatomic_ops
* Match GC_FAST_MALLOC_GRANS formal and actual arguments where possible
* Move de_win compiled resource files to cord/tests
* Move pcr_interface.c, real_malloc.c to 'extra' folder
* New API function (GC_dump_named) to produce named dumps
* New API function (GC_is_incremental_mode)
* New API function (get_expl_freed_bytes_since_gc)
* New API function (get_size_map_at) to get content of size_map table
* New API to stop and start the GC world externally
* New API to turn on manual VDB at runtime
* New field (expl_freed_bytes_since_gc) in public prof_stats_s
* New macro ALWAYS_SMALL_CLEAR_STACK to avoid clearing large stack sections
* New public API (PTR_STORE_AND_DIRTY) to simplify store-and-dirty operation
* Pass CFLAGS_FOR_PIC value to CFLAGS in Makefile.direct
* Print time passed since GC initialization in GC_dump
* Public API (GC_deinit) to allow Win32 critical sections deletion
* Reduce probability of collision in threads hashtable for 64-bit targets
* Reduce the default MUNMAP_THRESHOLD value to 2 for Sony PS/3
* Refactoring of USE_MMAP/USE_MMAP_ANON pairs definition in gcconfig.h
* Reformat code and comments in gc_allocator.h
* Remove 'dist' target from Makefile.direct
* Remove a redundant check of __cplusplus in Symbian-specific .cpp files
* Remove Android-specific code in gcconfig.h for M68K
* Remove C++ WeakPointer and CleanUp API which lacks implementation
* Remove DGUX_THREADS macro which duplicates GC_DGUX386_THREADS (configure)
* Remove done_init static variable from fnlz_mlc.c
* Remove duplicate definition of ALIGNMENT macro for OpenBSD/arm
* Remove duplicated sample code in leak.md
* Remove EMX_MAKEFILE (add EMX support to Makefile.direct)
* Remove GC code fragment (which already merged) from README.Mac
* Remove GC_GNU_THREADS macro (HURD)
* Remove GENERAL_MALLOC internal macro
* Remove HIGH_BIT macro duplicating SIGNB
* Remove lint-specific code
* Remove Makefile KandRtest target (that supported K&R C compiler)
* Remove MIN_WORDS macro from gc_priv.h
* Remove multi-line macros (FOR_EACH_PRED, ITERATE_DL_HASHTBL_*, PUSH_OBJ)
* Remove name of optional arguments of operator new and new[] in gc_cpp.h
* Remove notes that K&R C compiler is unsupported
* Remove PUSH_CONTENTS_HDR multi-line macro
* Remove redundant check that clear_fl_marks argument is non-null
* Remove redundant THREADS macro checks in alloc.c and gc_priv.h
* Remove stubborn objects allocation code completely, remove stubborn.c
* Remove unnecessary argument casts in add_roots_inner calls
* Remove unnecessary type casts in n_set_marks
* Remove unused USE_GENERIC macro definition and description
* Remove version info in 'de' cord test application
* Replace GC_MALLOC(sizeof T) with GC_NEW(T) in tests
* Replace GC_NO_RETRY_SIGNALS environment variable with GC_RETRY_SIGNALS=0
* Replace some FIXME items with TODO ones
* Run command passed to if_not_there directly from Makefile.direct
* Same type casts for GC_PTR_STORE arguments regardless of GC_DEBUG
* Skip grungy_pages update when mark state invalid to speedup read_dirty
* Skip typed_test in gctest if NO_TYPED_TEST macro is defined
* Support configure --disable-thread-local-alloc option (similar for CMake)
* Support enable_checksums option in CMake script
* Support Haiku multi-threaded build by CMake
* Support threads for DragonFly in configure
* Turn on 'atomic uncollectable' functionality by default (CMake)
* Turn on GC assertions in NT_MAKEFILE for debug builds
* Turn on gcj, disclaim and java finalization by default (CMake)
* Turn on incremental collection in gctest also if DEFAULT_VDB or MANUAL_VDB
* Turn on incremental mode in cordtest and cord/de
* Turn on incremental mode in disclaim_test, test_cpp and staticroots test
* Turn on parallel marker by default for all multi-threaded builds
* Update GC compilation and usage notes for Win32
* Update shared libraries version info to differentiate against v7.6
* Update top_index entry pointer only when the entry is constructed fully
* Use __builtin_expect in SIZET_SAT_ADD macro
* Use __declspec(allocator) for malloc-like prototypes (MS VS 2015+)
* Use __int64 instead of 'long long' in LONG_MULT if appropriate
* Use __thread keyword for Android NDK r12b+ Clang (arm)
* Use atomic allocation for leafs in reverse_test (gctest)
* Use atomic load/store for the concurrently accessed variables in GC_lock
* Use C11 static_assert if available
* Use compiler atomic intrinsics by default if available (configure)
* Use EXPECT FALSE for mark_from code documented as executed rarely
* Use heap-allocated memory for local mark stack of non-marker thread
* Use HOST_ANDROID define instead of PLATFORM_ANDROID
* Use include gc.h with the angle brackets in the man page synopsis
* Use longjmp in fault_handler_openbsd if siglongjmp unavailable (OpenBSD)
* Use MARK_BIT_PER_GRANULE instead of MARK_BIT_PER_OBJ where appropriate
* Use noexcept specifier in gc_allocator and gc_cpp if C++11
* Use same macro (NTHREADS) across all tests to specify number of threads
* Use sigsetjmp() in setjmp_t tool if available
* Use thread-local allocations for all multi-threaded builds
* Use THREAD_EQUAL consistently to compare pthread_t values
* Workaround 'bad pointer arithmetic' false waring in check_annotated_obj
* Workaround Clang optimizer bug crashing clear_stack_inner on OS X 10.8
* Workaround Thread Sanitizer (TSan) false positive warnings
== [7.6.12] 2019-03-01 ==
* Eliminate 'assigned value never used' compiler warning in test_cpp WinMain
* Fix 'mprotect remapping failed' abort on NetBSD with PaX enabled
* Fix 'undefined reference to __data_start' linker error (Android/aarch64)
* Fix 'unexpected mark stack overflow' abort in push_all_stack
* Fix 'wrong __data_start/_end pair' error on Android
* Fix BSD_TIME variant of MS_TIME_DIFF for the case of a.tv_usec < b.tv_usec
* Fix GetThreadContext stale register values use if WoW64 (Win32)
* Fix executable memory allocation in GC_unix_get_mem
* Fix invalid initializer of CLOCK_TYPE variables if BSD_TIME
* Fix thread_info() count argument value (OS X)
* Update NO_EXECUTE_PERMISSION documentation
== [7.6.10] 2018-12-13 ==
* Add paths to filenames mentioned in the copyright section in README
* Call real pthread_sigmask instead of its wrapper in start_mark_threads
* Eliminate 'casting signed to bigger unsigned int' CSA warning
* Eliminate 'non-virtual destructor for class with inheritors' CSA warning
* Fix 'collecting from unknown thread' abort in leak-finding mode for Win32
* Fix 'too wide non-owner permissions are set for resource' code defect
* Fix 'undefined reference to GC_incremental' linker error in pthread_start
* Fix GC_VSNPRINTF in cordprnt for DJGPP and MS VC for WinCE
* Fix GC_register_disclaim_proc for leak-finding mode
* Fix a deadlock in write_fault_handler if AO_or is emulated
* Fix comment typos in CMakeLists.txt, backgraph.c, de.c, gcconfig.h
* Fix concurrent bitmap update in GC_dirty
* Fix delete operator redirection if gc_cpp is built as .dll (Cygwin, MinGW)
* Fix hbp overflow in GC_install_counts
* Fix linkage with a system libatomic_ops shared library
* Fix lock assertion violation in get_index if GC_ALWAYS_MULTITHREADED
* Fix marking of finalizer closure object
* Fix marks and hb_n_marks consistency when disclaim returns true
* Fix memory allocation on GCF (Linux/x64)
* Fix missing curses.h in cord/de when compiling manually (MS VC, MinGW)
* Fix start_world not resuming all threads on Darwin
* Fix test_cpp assertion violation in find-leak mode
* Fix tests linkage with internal atomic_ops.o
* Fix unneeded end_stubborn_change in disclaim_test
* Guard against potential buffer overflow in CORD_next and CORD_pos_fetch
* New macro to suppress printing of leaked objects
* Prevent double inclusion of javaxfc.h and private/specific.h
* Reduce scope of local variables in GC_remove_all_threads_but_me
* Refine HIDE_POINTER documentation for the case of the leak-finding mode
* Refine documentation in gc_disclaim.h
* Test marking of finalizer closure object in disclaim_test
* Update documentation about arm64 ABI in gcconfig.h
* Use AO_or in async_set_pht_entry_from_index if available
* Use include gc.h with the angle brackets in the man page synopsis
== [7.6.8] 2018-08-12 ==
* Add cpu, make_as_lib, nothreads options to NT_MAKEFILE
* Add NetBSD/aarch64 and initial RISC-V support
* Adjust formatting of configure help messages and config.h comments
* Avoid multiple 'getcontext failed' warnings if getcontext is broken
* Cleanup BCC Makefile (remove absolute GC paths, fix del cmd, update clean)
* Collapse multiple NT_*_MAKEFILE scripts into a single NT_MAKEFILE
* Do not call GC_dirty_inner unless GC_incremental
* Do not use NULL in gc_inline.h
* Eliminate 'cast between incompatible function types' compiler warning
* Eliminate 'comparing signed and unsigned values' compiler warnings (bcc)
* Eliminate 'condition is always true' cppcheck warning in init_gcj_malloc
* Eliminate 'declaration of var hides global declaration' compiler warning
* Eliminate 'language extension used' Clang warning in gc.h
* Eliminate 'possibly incorrect assignment in CORD_vsprintf' compiler warning
* Eliminate 'ptr arithmetic with NULL' cppcheck warning in alloc_mark_stack
* Eliminate 'scope of var can be reduced' cppcheck warning in pthread_join
* Eliminate 'switch statement contains no case label' compiler warning
* Eliminate 'variable might be uninitialized' warning in win32_start_inner
* Eliminate duplicate clear_mark_bit call when removing disappearing link
* Fast fail on invalid CPU parameter passed to NT_MAKEFILE
* Fix 'collecting from unknown thread' abort in leak-finding mode
* Fix 'pointer arithmetic with NULL' code defect in print_callers
* Fix Borland version in documentation to match that in BCC_MAKEFILE
* Fix comment about inv_sz computation in setup_header
* Fix comments style in configure.ac and Makefile.am
* Fix compilation by digimars.mak (DMC)
* Fix compilation by WCC makefile
* Fix compilation of darwin_stop_world for iOS 8+
* Fix cords for MANUAL_VDB
* Fix dependency on gc_cpp source in BCC_MAKEFILE and NT_MAKEFILE
* Fix GC_is_valid_displacement and GC_is_visible for non-small objects
* Fix gctest in leak-finding mode
* Fix infinite restarting of mark_some when a static root disappeared (Linux)
* Fix large object base computation in PUSH_CONTENTS() if MARK_BIT_PER_OBJ
* Fix mark stack overflow checking in push_selected
* Fix missing GC_dirty calls for GC-allocated objects used internally
* Fix missing GC_dirty invocation from debug_end_stubborn_change
* Fix MSWIN32 macro redefinition (WCC)
* Fix multi-threaded gctest for the case of NTHREADS is set to zero
* Fix new and delete operators definition for DigitalMars compiler
* Fix NT_MAKEFILE for VS 2017
* Fix potential null dereference in GC_CONS
* Fix register_dynamic_libraries on Windows 10
* Fix result computation in n_set_marks
* Fix return type in GC_set_warn_proc API documentation
* Fix tests for GC compiled with MANUAL_VDB
* Fix the build for Emscripten
* Fix typo in comment for CORD_ec_flush_buf prototype
* Fix typos in ChangeLog and generic_malloc
* Fix UNTESTED for multi-threaded API functions in gctest
* Fix VirtualQuery call in case of malloc failure (Win32)
* Install gc.3 man page instead of copying gc.man to doc folder (configure)
* Keep pointer to the start of previous entry in remove_specific_after_fork
* Move de_win compiled resource files to cord/tests
* Never return null by C++ GC allocators and gc_cpp operator new
* Perform thread_suspend in loop as it may be interrupted (Darwin)
* Really abort if failed to read /proc for library registration (Linux)
* Remove code duplication in gcj_malloc and malloc_explicitly_typed
* Remove duplicate local variable in reclaim_block
* Remove information how to send bugs from README.cords file
* Remove libatomic_ops license information
* Remove unused USE_GENERIC macro definition and description
* Suppress 'functions containing switch are not expanded inline' bcc warning
* Suppress 'non-member operator new/delete may not be inline' VC++ warning
* Turn on incremental collection in gctest also if MANUAL_VDB
* Update copyright information in alloc.c, gc.c/h and the documentation
* Update EXTRA_DIST in Makefile, Win32/64 docs after NT_*_MAKEFILE removal
* Update NT_MAKEFILE usage information in README files for Win32 and Win64
* Workaround 'class C does not have a copy constructor' cppcheck warning
* Workaround 'function nested_sp is never used' cppcheck style warning
* Workaround 'opposite expression on both sides of &' cppcheck style warning
* Workaround 'template-id not supported in this context' compiler error (WCC)
== [7.6.6] 2018-04-20 ==
* Define GC_FREEBSD_THREADS and GC_ADD_CALLER macros for kFreeBSD
* Eliminate 'boolean result used in bitwise operation' cppcheck warning
* Eliminate 'there is pointer arithmetic with NULL' cppcheck warning
* Explicitly unblock GC signals on GC initialization
* Fix 'scope of var can be reduced' cppcheck err in enqueue_all_finalizers
* Fix 'undefined reference to __builtin_unwind_init' linker error (ArmCC)
* Fix arguments delimiter in pcr_interface.c (PCR)
* Fix assertion violation in DllMain of win32_threads
* Fix comment for debug_generic_malloc_inner[_ignore_off_page]
* Fix data race during apply_to_each_object(reset_back_edge)
* Fix dbg_mlc.c/o file name in documentation
* Fix gctest with musl libc on s390x
* Fix include gc_gcj.h in thread_local_alloc.c
* Fix man section number (3)
* Fix missing GC_generic_malloc_words_small implementation in new_gc_alloc.h
* Fix missing new-line in ABORT_ARG<n> definition
* Fix missing SIGBUS handler setup for kFreeBSD
* Fix null dereference in print_callers on backtrace_symbols failure
* Fix null pointer dereference in get_private_path_and_zero_file (Symbian)
* Fix the collector hang when it is configured with --enable-gc-debug
* Fix thread_suspend fail for threads registered from key destructor (OS X)
* Fix type of local variables receiving result of PHT_HASH
* Fix typo in AIX macro name
* Fix typo in comment in specific.h
* Fix unbounded heap growth in case of intensive disappearing links usage
* Remove API symbols renaming in WCC_MAKEFILE
* Support Haiku/amd64 and Haiku/x86 hosts
* Support threads for DragonFly in configure
* Workaround 'address of auto-variable returned' cppcheck error
* Workaround gctest hang on kFreeBSD (if thread-local allocations are on)
== [7.6.4] 2018-01-26 ==
* Add note of set_free_space_divisor, set_warn_proc ABI change after gc-7.1
* Change compiler invocation example in gc.man to use dynamic libgc
* Delete dont_ar_* build intermediate files on make clean (Makefile.direct)
* Do not declare dl_iterate_phdr as weak for DragonFly
* Fix 'cords' parallel build in Makefile.direct
* Fix 'undeclared identifier USRSTACK' compiler error on OpenBSD-6.2
* Fix error code in abort message if sem_wait failed in start_world (NetBSD)
* Fix GC allocation mutex in child after a fork
* Fix global operator delete definition for C++14 in gc_cpp
* Fix last_reclaimed..gc_no interval comparison to threshold in unmap_old
* Fix libgc version which was changed in linkage breaking way
* Fix missing EOLn output in threadlibs tool
* Fix threadlibs tool to output '-lpthread' for DragonFly
* Prevent DATASTART redefinition for NaCl
* Remove obsolete advice about linking with _DYNAMIC=0 (Linux)
== [7.6.2] 2017-12-23 ==
* Add assertion that no hb_n_marks underflow occurs
* Add minimal testing of GC_MALLOC_[ATOMIC_]WORDS and GC_CONS (gctest)
* Add minimal testing of GC_set_bit (gctest)
* Add more cases to huge_test to cover sizes close to word-type maximum
* Add testing of new[]/delete[] (test_cpp)
* Adjust AO_HAVE_x check to match AO_fetch_and_add primitive variant used
* Adjust code indentation of calloc_explicitly_typed
* Align local_mark_stack in help_marker explicitly
* Allow custom TRACE_ENTRIES value
* Allow gctest and thread_leak_test with zero NTHREADS
* Avoid data race in finalized_count (gctest)
* Code refactoring of divide-by-HBLKSIZE occurrences
* Code refactoring of huge_test
* Code refactoring of tests/subthread_create regarding AO add primitive
* Compile thread_local_alloc only if multi-threaded build (Makefile.am)
* Delete preprocessor output on make clean (Makefile.direct)
* Disable implicit multi-threaded mode for Win32 to avoid LOCK crash
* Do not disable parallel mark for WRAP_MARK_SOME
* Do not enable mprotect-based incremental mode if unmapping is on (gctest)
* Do not install documentation if configure --disable-docs (new option)
* Do not use tkill (Android)
* Document base and size of objects allocated by finalized_malloc
* Document configure 'syntax error' issue in README
* Eliminate 'address of local variable returned' static analyzer warning
* Eliminate 'array vs singleton' code defect in typed_test (gctest)
* Eliminate 'assigned value never used' CSA warning in min_bytes_allocd
* Eliminate 'boolean result used in bitwise op' cppcheck false warning
* Eliminate 'C-style pointer casting' cppcheck style warnings in test
* Eliminate 'checking if unsigned variable is <0' cppcheck style warning
* Eliminate 'class member var with name also defined in parent' warning
* Eliminate 'comparison is always false' static analyzer warning in finalize
* Eliminate 'Condition 0==datastart always false' cppcheck warning (dyn_load)
* Eliminate 'condition is always true' cppcheck style warning
* Eliminate 'constructor with 1 argument is not explicit' cppcheck warning
* Eliminate 'CORD_*printf is never used' cppcheck style warnings (cordtest)
* Eliminate 'dereference of null' CSA false warning in array_mark_proc
* Eliminate 'function result not used' code defect in GC_mark_local
* Eliminate 'GC_collecting is set but never used' code defect (Win32)
* Eliminate 'GC_record_fault is never used' cppcheck style warning
* Eliminate 'integer shift by a negative amount' code defect in finalize
* Eliminate 'label not used' cppcheck false warnings in GC_mark_X
* Eliminate 'memory leak' code defect for scratch-allocated memory
* Eliminate 'memory leak' code defect in remove_specific
* Eliminate 'non-null arg compared to null' warning in toggleref_add (GCC)
* Eliminate 'non-reentrant function strtok called' cppcheck warning (POSIX)
* Eliminate 'possible integer underflow' code defect (cord-de)
* Eliminate 'potential overflow' static analyzer warning in test
* Eliminate 'printf format specifies type void*' GCC pedantic warnings
* Eliminate 'scope of variable can be reduced' cppcheck warnings
* Eliminate 'suspicious pointer subtraction' cppcheck warning (gc_cpp)
* Eliminate 'this statement may fall through' GCC warnings
* Eliminate 'unnecessary comparison of static strings' cppcheck warning
* Eliminate 'unsafe vsprintf is deprecated' compiler warning
* Eliminate 'unused formal parameter' compiler warnings in C++ code (MS VC)
* Eliminate 'unused variable' compiler warning in remove_all_threads_but_me
* Eliminate 'use of vulnerable sprintf' code defect in de_win test (cord)
* Eliminate 'value exceeds maximum object size' GCC warning in huge_test
* Eliminate 'value of CLOCK_TYPE unknown' cppcheck info message
* Eliminate 'value of DATASTART2 unknown' cppcheck info messages
* Eliminate 'value of GC_PTHREAD_EXIT_ATTRIBUTE unknown' cppcheck messages
* Eliminate 'value of GC_RETURN_ADDR_PARENT unknown' cppcheck info messages
* Eliminate 'value of NEED_FIXUP_POINTER unknown' cppcheck info messages
* Eliminate 'write to memory that was const-qualified' code analyzer warning
* Eliminate all 'scope of variable can be reduced' cppcheck style warnings
* Eliminate CSA warning about incorrect cast applied to HBLK_OBJS
* Eliminate CSA warning about narrowing cast in CleanUp of test_cpp
* Eliminate CSA warning of non-virtual destructor in test_cpp base class
* Eliminate CSA warning of staticroot that can be a local variable (tests)
* Eliminate CSA warning of unmodified non-const static var (disclaim_test)
* Eliminate redundant local variable in register_finalizer
* Eliminate TSan (Thread Sanitizer) warnings in gctest
* Eliminate UBSan warning of overflow during descr subtraction in mark_from
* Eliminate unreachable PROC/DEFAULT_VDB GC_printf calls in gctest main()
* Eliminate unsigned fl_builder_count underflow in mark_thread
* Enable GC_is_tmp_root for all platforms
* Execute more single-threaded GC tests by CMake
* Expand tabs to spaces in de_win.rc (tests)
* Export GC_dump_finalization/regions()
* Export GC_is_tmp_root() and GC_print_trace[_inner]()
* Export GC_print_free_list()
* Fix '32-bit value shift followed by expansion to 64-bit' code defect
* Fix 'GC_written_pages never read' code defect (GWW_VDB)
* Fix 'label cannot be reached' static analyzer warning in disclaim_test
* Fix 'size of tv is unknown' error in brief_async_signal_safe_sleep (musl)
* Fix 'syntax error' reported by cppcheck for mach_dep
* Fix 'unknown type name GC_INNER' compilation error (FreeBSD)
* Fix 'variable assigned a value that is never used' cppcheck style warnings
* Fix 'void pointers in calculations: behavior undefined' cppcheck warning
* Fix assertion violation about disabled cancel in try_to_collect_inner
* Fix atomic_ops build in Makefile.direct for Solaris
* Fix Clang static analyzer warning about not found gc_priv.h in extra files
* Fix compilation error in get_main_stack_base (Emscripten)
* Fix compilation for winpthreads if HANDLE_FORK
* Fix compilation if configured with --enable-werror on OS X
* Fix cord/de build in Makefile.direct (Linux)
* Fix data race in a list referenced by A.aa (gctest)
* Fix data race in collectable_count (gctest)
* Fix data race in do_local_mark when comparing active_count to helper_count
* Fix data race in GC_suspend/resume_thread
* Fix data race in last_stop_count access (suspend_handler_inner)
* Fix data race in make_descriptor when setting explicit_typing_initialized
* Fix data race in mark_thread when updating mark_no
* Fix data race when getting object size in explicitly-typed allocators
* Fix deadlock in GC_suspend_thread
* Fix gctest failure for Darwin if CPPCHECK is defined
* Fix lack of barriers to synchronize memory for suspend_handler
* Fix marking of disclaim-reachable objects in the incremental mode
* Fix message of VDB implementation used if MPROTECT_VDB+GWW_VDB (gctest)
* Fix missing started_thread_while_stopped call from mark_some if GCC/Clang
* Fix null dereference in GC_stack_range_for if not DARWIN_DONT_PARSE_STACK
* Fix page calculation in checksums
* Fix parallel build in Makefile.direct
* Fix test_cpp and c++ parallel build in Makefile.direct
* Fix typo in comment of GC_mark_some
* Fix typos in cdescr.html and README.sgi
* Make GC_INIT optional for clients even if thread-local allocations enabled
* Match uclinux pattern in configure
* Move conditional GC_need_to_lock setting to gc_locks.h (refactoring)
* Move README.QUICK from DOC_FILES to OTHER_FILES in Makefile.direct
* New API function (GC_is_init_called) to check if BDWGC is initialized
* New target (check-cpp) in Makefile.direct
* Prevent abort in register_data_segments for Symbian and Emscripten
* Prevent multiple 'Caught ACCESS_VIOLATION in marker' per collection
* Print realloc_count value in gctest
* Put invariant name in quotes to make mark_state comments clearer
* Refine configure messages when checking for compiler option support
* Remove extraneous semicolons after AC_MSG_WARN (configure)
* Remove page_was_dirty and remove_protection duplicate definitions
* Remove unnecessary type casts of printf arguments to unsigned long
* Remove unused ALIGN_DOUBLE, USE_GENERIC_PUSH_REGS macros (TILE-Gx/Pro)
* Rename 'test' to 'check' target in Makefile.direct
* Replace deprecated rewind to fseek in cordxtra
* Report gcc/clang pedantic warnings (configure)
* Skip thread suspend/resume API testing for Tru64 (OSF1)
* Support AddressSanitizer (Clang/GCC) and MemorySanitizer (Clang)
* Support GC_init (and get_stack_base) from non-main thread on FreeBSD/NetBSD
* Suppress 'tainted string passed to vulnerable operation' false defects
* Suppress 'taking address of label non-standard' GCC/Clang pedantic warning
* Test GC initialization from non-main thread on FreeBSD and NetBSD
* Test GCJ object creation with length-based descriptor (gctest)
* Update comment in finalized_disclaim to match FINALIZER_CLOSURE_FLAG
* Update README regarding make cords with Makefile.direct
* Update README to use autogen.sh on build from the source repository
* Update shared libraries version info to differentiate against v7.4
* Use mprotect instead of mmap in GC_unmap() on Cygwin
* Use same style of include gc.h in documentation
* Workaround '!GC_page_size is always false' cppcheck style warning
* Workaround '#error' cppcheck error messages
* Workaround '32-bit value shift by >31 bits is undefined' cppcheck warnings
* Workaround 'array compared to 0', 'untrusted loop bound' false defects
* Workaround 'bad address arithmetic' static analysis tool false positive
* Workaround 'checking if unsigned value is negative' cppcheck warning
* Workaround 'checking unsigned value is negative' code defect in mark_from
* Workaround 'comparison of identical expressions' false code defects
* Workaround 'Condition 0!=GETENV() is always false' cppcheck style warnings
* Workaround 'condition is always false' cppcheck warning in get_next_stack
* Workaround 'condition is always true' cppcheck style warnings in GC_init
* Workaround 'function is never used' cppcheck style warnings
* Workaround 'insecure libc pseudo-random number generator used' code defect
* Workaround 'int shift by negative amount' false code defect in finalize
* Workaround 'local variable size too big' static analyzer warning
* Workaround 'memory leak: result' cppcheck false error (POSIX)
* Workaround 'null pointer dereference' false positive in push_next_marked
* Workaround 'obsolescent bcopy, bzero called' cppcheck warnings (POSIX)
* Workaround 'obsolescent usleep called' cppcheck warning (POSIX)
* Workaround 'obsolete function alloca() called' cppcheck warnings
* Workaround 'passing untyped NULL to variadic function' cppcheck warning
* Workaround 'pointer used before comparison to null' code defect (pthread)
* Workaround 'possible null pointer dereference' cppcheck warnings
* Workaround 'potential multiplication overflow' code defect in de_win (cord)
* Workaround 'redundant assignment of *result to itself' cppcheck warning
* Workaround 'resource leak' false positives in alloc_MS, bl/envfile_init
* Workaround 'same expression on both sides of ==' cppcheck style warning
* Workaround 'same expression on both sides of OR' cppcheck style warning
* Workaround 'struct member is never used' cppcheck style warnings
* Workaround 'tainted int used as loop bound' static analysis tool warning
* Workaround 'Uninitialized variable' cppcheck errors
* Workaround 'unused variable' cppcheck style warnings
* Workaround 'va_list used before va_start' cppcheck error in cord
* Workaround 'value of macro unknown' cppcheck info messages
* Workaround 'value of REDIRECT_MALLOC/FREE unknown' cppcheck info messages
* Workaround 'value of SIGBUS unknown' cppcheck info messages
* Workaround 'value of WINAPI unknown' cppcheck info messages
* Workaround 'variable hides enumerator with same name' cppcheck warnings
* Workaround 'variable reassigned before old value used' cppcheck warnings
* Workaround 'waiting while holding lock' code defect in stop_world (Unix)
* Workaround false 'uninitialized var use' code defect (initsecondarythread)
Also, includes 7.4.6 changes
== [7.6.0] 2016-08-02 ==
* ABORT_ARGn log details at INFO level (Android)
* Add 'pragma message' to gc.h to detect inconsistent WIN64/_WIN64 (MS VC)
* Add API function to calculate total memory in use by all GC blocks
* Add API function to set/modify GC log file descriptor (Unix)
* Add alloc_size attribute to GC_generic_malloc
* Add alt-stack registration support
* Add assertion for GC_new_kind boolean arguments
* Add assertion on lock status to GC_alloc_large and its callers
* Add build scripts for VC 9 (Win32/64)
* Add build system plumbing for building with -Werror
* Add incremental GC support for Darwin/arm64
* Add profiling callback events to indicate start/end of reclaim phase
* Add support for enumerating the reachable objects in the heap
* Add toggle-ref support (following Mono GC API)
* Added instructions to README.md for building from git
* Adjust code indentation of malloc/calloc/str[n]dup
* Allow fork() automatic handling on Android with API level 21+
* Allow specific TLS attributes for GC_thread_key
* Allow thread local allocations from within pthread TLS destructors
* Allow to force GC_dump_regularly set on at compilation
* Altera NIOS2 support
* Change 'cord' no-argument functions declaration style to ANSI C
* Check DATASTART is less than DATAEND even assertions off
* Check for execinfo.h by configure
* Code refactoring of GC_push_finalizer/thread/typed_structures
* Code refactoring regarding 'data start' definition for FreeBSD
* Consistently set type of DATASTART/END to ptr_t (code refactoring)
* Consistently use int[] type for '_end' symbol (code refactoring)
* Consistently use outermost parentheses for DATASTART/END, STACKBOTTOM
* Define GC_LINUX_THREADS, NO_EXECUTE_PERMISSION in configure for NaCl
* Define ROUNDUP_PAGESIZE, ROUNDUP_GRANULE_SIZE macros (code refactoring)
* Define public GC_GENERIC_OR_SPECIAL_MALLOC and GC_get_kind_and_size
* Do no declare kernel_id field of GC_Thread_Rep for 64-bit Android
* Do not allow SHORT_DBG_HDRS if KEEP_BACK_PTRS or MAKE_BACK_GRAPH
* Do not warn of missing PT_GNU_RELRO segment when custom DSO filter used
* Document GC_register_my_thread returned value
* Dump the block information in CSV format
* Eliminate redundant *flh check for null in GC_allocobj
* Enable atomic-uncollectable in operator new in gc_cpp.h
* Enable build with musl libc
* Enable gc.h inclusion by client without implicit include windows.h (Win32)
* Enable huge_test for Win64 (and LLP64 target)
* Enable thread-local storage for Android Clang
* Enable thread-local storage usage for GC_malloc/calloc_explicitly_typed
* Export GC_push_all_eager, GC_push_finalizer_structures
* Fix 'arg parameter might be clobbered by setjmp' compiler warning
* Fix assertion in GC_mark_from for non-heap regions
* Fix compilation for Android clang/arm with bfd linker
* Fix integer shift undefined behavior in GC_init_explicit_typing
* Fix missing new-line and redundant trailing dot in WARN messages
* Fix STACKBOTTOM for Solaris 11/x86
* Fix tag collision between ENABLE_DISCLAIM and KEEP_BACK_PTRS
* Fix unchecked fork() result in gctest (Unix, Cygwin)
* Fix user-defined signals drop by marker threads
* Fix various typos in comments and documentation
* FreeBSD/arm support improvement
* GC_make_descriptor code refactoring (eliminate two local variables)
* GC_malloc[_atomic] global and thread-local generalization with kind
* GC_malloc_[atomic_]uncollectable generalization
* GC_scratch_alloc code refactoring (and WARN message improvement)
* Group all compact fields of GC_arrays to fit in single page
* Handle load_segs overflow in register_dynlib_callback gracefully
* Harmonize OSX/iOS configuration; enable compiling for iPhone simulator
* Implement event callbacks for profiling (following Mono GC API)
* Implement the finalization extension API
* Implement thread suspend/resume API (Linux threads only)
* Improve documentation for disappearing links in gc.h
* Make heap growth more conservative after GC_gcollect_and_unmap call
* Mark fo_head, finalize_now with a single GC_push_all call (refactoring)
* Move MessageBox invocation code from GC_abort to a separate routine (Win32)
* NaCl/arm initial support; NaCl runtime fixes for other CPUs
* New macro (GC_ALWAYS_MULTITHREADED) to set multi-threaded mode implicitly
* New macro (NO_WINMAIN_ENTRY) to prefer main() instead of WinMain in test
* New macro (REDIRECT_MALLOC_IN_HEADER) to enable source-level redirection
* Process all PT_LOAD segments before PT_GNU_RELRO segments (Glibc)
* Re-implement GC_finalized_malloc using GC_malloc_kind
* Refactoring of android_thread_kill/pthread_kill calls
* Refactoring of GC_Xobjfreelist (use single array to keep free lists)
* Refactoring of thread-local *_freelists (use single array of free lists)
* Refine description in README how to build from source repository
* Refine GC_free_space_divisor comment regarding its initial value
* Reformat code of gc_cpp.cc/h
* Remove 'opp' local variable in GC_malloc_X
* Remove 'sig' argument of GC_suspend_handler_inner (code refactoring)
* Remove code commented out by 'ifdef UNDEFINED'
* Remove hb_large_block field (use 1 extra bit of hb_flags instead)
* Remove obsolete BACKING_STORE_ALIGNMENT/DISPLACEMENT macros for Linux/IA64
* Remove redundant casts in GC_generic_or_special_malloc and similar
* Remove unsupported FreeBSD/ia64 case from gcconfig.h file
* Remove unused GC_gcjdebugobjfreelist
* Rename ATOMIC_UNCOLLECTABLE to GC_ATOMIC_UNCOLLECTABLE
* Replace non-API occurrences of GC_word to word (code refactoring)
* Return GC_UNIMPLEMENTED instead of abort in GC_get_stack_base (OS/2)
* Show WoW64 warning message if running 32-bit on Win64 (enabled by macro)
* Standalone profiling callback for threads suspend/resume
* Support (add machine description for) TILE-Gx and TILEPro targets
* Support build for Android 64-bit (arm64, mips64, x86_64)
* Support FreeBSD/aarch64, FreeBSD/mips
* Support iOS7 64-bit (AArch64) and iOS8+ 32/64-bit (Darwin)
* Support MinGW build in scripts
* Turn off sigsetjmp workaround for Android/x86 starting from NDK r8e
* Use magic header on objects to improve disclaim_test
* Workaround 'sa_sigaction member missing' compiler error (Android/x32)
* Workaround 'unresolved __tls_get_addr' error for Android NDK Clang
* Workaround a bug in winpthreads causing parallel marks deadlock (MinGW)
Also, includes 7.4.4 changes
== [7.4.18] 2019-03-01 ==
* Fix 'wrong __data_start/_end pair' error on Android
* Fix thread_info() count argument value (OS X)
Also, includes 7.2n changes
== [7.4.16] 2018-12-13 ==
* Fix 'collecting from unknown thread' abort in leak-finding mode for Win32
* Fix 'undefined reference to GC_incremental' linker error in pthread_start
* Fix GC_register_disclaim_proc for leak-finding mode
* Fix concurrent bitmap update in GC_dirty
* Fix marking of finalizer closure object
* Fix marks and hb_n_marks consistency when disclaim returns true
* Fix missing curses.h in cord/de when compiling manually (MS VC, MinGW)
* Refine documentation in gc_disclaim.h
Also, includes 7.2m changes
== [7.4.14] 2018-08-11 ==
* Cleanup BCC Makefile (remove absolute GC paths, fix del cmd, update clean)
* Do not call GC_dirty_inner unless GC_incremental
* Eliminate 'cast between incompatible function types' compiler warning
* Eliminate 'comparing signed and unsigned values' compiler warnings (bcc)
* Eliminate 'language extension used' Clang warning in gc.h
* Eliminate 'possibly incorrect assignment in CORD_vsprintf' compiler warning
* Eliminate 'switch statement contains no case label' compiler warning
* Eliminate 'variable might be uninitialized' warning in win32_start_inner
* Eliminate duplicate clear_mark_bit call when removing disappearing link
* Fix 'collecting from unknown thread' abort in leak-finding mode
* Fix compilation by digimars.mak (DMC) and by WCC makefile
* Fix cords for MANUAL_VDB
* Fix dependency on gc_cpp source in BCC_MAKEFILE and NT_MAKEFILE
* Fix gctest in leak-finding mode
* Fix missing GC_dirty calls for GC-allocated objects used internally
* Fix missing GC_dirty invocation from debug_end_stubborn_change
* Fix multi-threaded gctest for the case of NTHREADS is set to zero
* Fix typos in ChangeLog and generic_malloc
* Keep pointer to the start of previous entry in remove_specific_after_fork
* New API function (GC_is_init_called) to check if BDWGC is initialized
* Remove code duplication in gcj_malloc and malloc_explicitly_typed
* Remove duplicate local variable in reclaim_block
* Remove libatomic_ops license information from README
* Workaround 'dynamic exception specifications deprecated in C++11' warning
Also, includes 7.2l changes
== [7.4.12] 2018-04-19 ==
* Define GC_FREEBSD_THREADS and GC_ADD_CALLER macros for kFreeBSD
* Fix comment for debug_generic_malloc_inner[_ignore_off_page]
* Fix gctest with musl libc on s390x
* Fix missing new-line in ABORT_ARG<n> definition
* Fix null pointer dereference in get_private_path_and_zero_file (Symbian)
* Fix type of local variables receiving result of PHT_HASH
* Remove API symbols renaming in WCC_MAKEFILE
Also, includes 7.2k changes
== [7.4.10] 2018-01-22 ==
* Fix error code in abort message if sem_wait failed in start_world (NetBSD)
Also, includes 7.2j changes
== [7.4.8] 2017-12-22 ==
* Eliminate 'this statement may fall through' GCC warnings
* Eliminate 'value exceeds maximum object size' GCC warning in huge_test
* Fix data race in make_descriptor when setting explicit_typing_initialized
* Fix marking of disclaim-reachable objects in the incremental mode
* Update comment in finalized_disclaim to match FINALIZER_CLOSURE_FLAG
Also, includes 7.2i changes
== [7.4.6] 2017-10-26 ==
* Add configure --enable-gcov option (enable code coverage analysis)
* Add configure check whether to define NO_GETCONTEXT
* Adjust GC_memalign comment
* Allow HAVE_DL_ITERATE_PHDR to be defined by client (musl)
* Allow PKG_CHECK_MODULES in configure.ac to be commented out easily
* Avoid busy waiting in mark_thread while GC_parallel is false
* Better document minimum value of size argument for typed allocations
* Change type of THREAD_TABLE_INDEX result to int in win32_threads.c
* Consistently use 'msec' instead of 'ms' in comments in pthread_support
* Do not define amiga_get_mem, MacTemporaryNewPtr unless really used (extra)
* Do not produce .tar.bz2 distribution file (configure)
* Do not require libatomic_ops for single-threaded builds (configure)
* Do not warn of missing PT_GNU_RELRO segment when custom DSO filter used
* Document GWW_VDB in gcdescr.html
* Eliminate 'cast to void* from int' compiler warnings (Darwin/x64)
* Eliminate 'conditional expression is always true' code defect in GC_init
* Eliminate 'FP divide-by-zero' static analyzer warning
* Eliminate 'incompatible function pointer' warning in mark_some (MinGW/x86)
* Eliminate 'ISO C forbids an empty translation unit' GCC pedantic warning
* Eliminate 'ISO C forbids object to function pointer conversion' warning
* Eliminate 'locally defined symbol imported' MS linker warnings (cord)
* Eliminate 'null dereference' code defect warning in register_finalizer
* Eliminate 'possible loss of data' compiler warnings (MS VC)
* Eliminate 'printf format specifier mismatch' compiler warning (tools)
* Eliminate 'type defaults to int in declaration' warning (REDIRECT_MALLOC)
* Eliminate 'value stored is never read' warning of Clang static analyzer
* Eliminate duplicate log messages in GC_mark_from
* Eliminate most of collisions in GC_threads on Linux/x64
* Ensure GC initialized when atfork_prepare is called by client
* Fix 'arg parameter might be clobbered by setjmp' compiler warning
* Fix 'bogus LR' detection in FindTopOfStack (Darwin)
* Fix 'execvp argument incompatible pointer type' compiler warning (tools)
* Fix 'GetVersion deprecated' compiler warning in os_dep (MS VC)
* Fix 'incompatible pointer' compiler warning in GC_init_dyld (OS X 64-bit)
* Fix 'incompatible ptr-to-int conversion' compiler warning in push_all_stack
* Fix 'ISO C90 does not support %lf, %lg gnu_printf formats' GCC warnings
* Fix 'ISO C90 forbids mixed declarations and code' compiler warning
* Fix 'missing libc-version.h' build error (uClibc/x86[_64])
* Fix 'replacement operator delete cannot be inline' GCC warning (Cygwin)
* Fix 'variable unused' compiler warning in FirstDLOpenedLinkMap
* Fix 'zero-size array is extension' Clang warning in os_dep (Linux/x86)
* Fix (adjust) GC_scratch_alloc actual argument type
* Fix deadlock in GC_help_marker caused by use of mark_cv of parent process
* Fix finalize.c compilation in 'strict ANSI' mode
* Fix GC shared library tests failure related to dl_iterate_phdr (musl)
* Fix gc.h compliance to strict ANSI (pthreads)
* Fix GC_bytes_allocd incrementation in case of allocation failure
* Fix GC_jmp_buf multiple definition
* Fix GC_noop6 definition to avoid its calls to be optimized away
* Fix gctest failure if PARALLEL_MARK (musl)
* Fix gctest thread stack overflow (musl-gcc)
* Fix initsecondarythread_test runtime failure if GC compiled w/o threads
* Fix lack of 2 trailing zeros in _MSC_VER numbers
* Fix local variable declarations in disclaim_bench
* Fix missing #error pragma
* Fix missing .exe for disclaim test filenames in Makefile (MinGW)
* Fix missing atomic/[un]collectable/realloc_count increments in gctest
* Fix missing new-line and redundant trailing dot in WARN messages
* Fix missing new-line at format strings end in subthread_create test
* Fix mixed include of GC public header and gc_priv.h in disclaim bench/test
* Fix potential overflow in decrement when computing GC_markers_m1
* Fix printf format specifiers in extra files (cppcheck warnings)
* Fix pthread_start compilation if single-obj-compilation (Linux)
* Fix register_finalizer call in disclaim_bench for GC_DEBUG
* Fix static assertion violation in LONG_MULT for 64-bit targets
* Fix tag collision between ENABLE_DISCLAIM and KEEP_BACK_PTRS
* Fix thread id leaks in subthread_create and threadkey_test
* Fix threaded tests runtime crash if GC_NO_THREAD_REDIRECTS supplied
* Fix tools/setjmp_t to prevent nested_sp inlining
* Fix typo in CHECK_GCLIB_VERSION name (test)
* Fix typos in comments/documentation (ews4800, extend_size_map, push_roots)
* Fix unchecked fork() result in gctest (Unix, Cygwin)
* Improve detection of internal libatomic_ops (configure)
* Move libraries version info to the beginning of Makefile.am
* Prevent abort in register_data_segments for Symbian
* Process all PT_LOAD segments before PT_GNU_RELRO segments (Glibc)
* Refine Makefile.direct comment about multi-threaded GC build
* Refine README about library source downloading
* Refine should_invoke_finalizers documentation
* Remove all generated files by NT_X64_THREADS_MAKEFILE 'clean' target
* Remove non-existent configure option in simple_example.html
* Replace C++ style comments to C ones, remove commented out code (extra)
* Support CFLAGS_EXTRA to pass extra user-defined compiler flags (configure)
* Support CFLAGS_EXTRA when checking for inline and dladdr (configure)
* Suppress 'tainted string passed to vulnerable operation' false defects
* Suppress MS VC warnings about unused param, const condition (NT_MAKEFILE)
* Update bdwgc mailing list online archive link in documentation
* Update shared libraries version info to differentiate against v7.2
* Use AC_DEFINE for defining NO_GETCONTEXT in configure
* Workaround 'index out of bounds' UBSan false warning in push_marked
* Workaround 'mmap() resource handle leak' static analyzer warning
* Workaround 'redundant assignment of *result to itself' cppcheck warning
* Workaround 'resource leak' error reported by cppcheck (tools, test)
Also, includes 7.2h changes
== [7.4.4] 2016-05-25 ==
* Allow GC_FAST_MALLOC_GRANS() multiple use in a function
* Also enable the TSX workaround for i386 (Linux)
* Avoid unstructured procfs on Solaris
* Change cord/de main() declaration style from K-R to ANSI C
* Change no-argument functions declaration style to ANSI C (cord)
* Do not include sigcontext.h and asm/sigcontext.h
* Eliminate 'divide by zero' compiler warning in cordtest
* Eliminate warning about 64-bit pointer-to-int cast (Win64/pthreads-w32)
* Eliminate warnings detected by Cppcheck in cord de[_win]
* Fix 'comparison of non-null parameter is always false' warning (Clang)
* Fix 'CORD_iter5 unused result' code defect in cordxtra
* Fix 'GC_generic_malloc_inner_ignore_off_page not used' compiler warning
* Fix 'implicit declaration of vsnprintf' GCC warning (if strict ANSI mode)