7.2d

Changes

• Fix GC_call_with_stack_base to prevent its tail-call optimization
• Fix all address-of-dummy operations by using GC_approx_sp() instead
• Fix stop_info.stack_ptr assignment in GC_suspend_all for OpenBSD
• Fix test_cpp (ensure the collector recognizes pointers to interiors)
• Fix thread-related tests for pthreads-w32
• test_cpp: Fix WinMain to prevent SEGV if zero arguments passed (MinGW)

Distribution Tarball

gc-7.2d.tar.gz

7.2c

Changes

• Fix CORD_cat_char_star to prevent SEGV in case of out-of-memory
• Fix GC_FirstDLOpenedLinkMap() for NetBSD 6 release
• Fix GC_scratch_alloc and GC_get_maps invocations to prevent SEGV
• Fix visibility of GC_clear/set_mark_bit (unhide symbols)
• Fix visibility of GC_push_all/conditional, GC_push_other_roots symbols

Distribution Tarball

gc-7.2c.tar.gz

7.2b

Changes

• Fix assertion in GC_malloc_[atomic_]uncollectable (THREADS case only)

Distribution Tarball

gc-7.2b.tar.gz

7.2

Changes

• Abort in GC_thr_init on pthread_atfork failure (POSIX threads)
• Add GC_WIN32_PTHREADS target in configure
• Add GC_is_disabled new function to GC API
• Add info that getcontext() resets FPE mask no longer on Linux/x86_64
• Add public GC_set_handle_fork to control forked child handling support
• Add realloc_test.c test
• Add support for Hexagon target
• Add thread-safe GC_get_heap_usage_safe to GC API
• Change GC_check_fl_marks prototype and implementation
• Check pthread_create/join result in test
• Define GC_DLL (in configure) if building only dynamic libraries
• Define NO_DEBUGGING (in configure) if "--disable-gc-debug" is set
• Disable incremental mode on Darwin if fork handling requested
• Enable parallel marker in configure for Solaris
• Fix "comparison of signed and unsigned values" compiler warnings
• Fix 'volatile' keyword placement in GC_SysVGetDataStart
• Fix ALIGNMENT, CPP_WORDSZ, GC_GRANULE_BYTES/WORDS for x32 target
• Fix GC_READ_ENV_FILE code for Cygwin
• Fix GC_add_roots_inner for Mac OS X (align segment start)
• Fix GC_check_fl_marks regarding concurrent access
• Fix GC_finalizer_nested size to workaround alignment problem in Watcom
• Fix GC_find_limit_with_bound to always reset fault handler on return
• Fix GC_init static assertion for clang/x64 (Darwin)
• Fix GC_init[_lib_bounds] and GC_get_main_stack_base for malloc redirection
• Fix GC_push_all/selected boundaries check
• Fix GC_register_my_thread marking thread as detached (Cygwin/pthreads-w32)
• Fix GC_remove_all_threads_but_me to cleanup thread-specific data storage
• Fix GC_restart_handler to preserve errno if needed
• Fix GC_root_size update in GC_add_roots_inner (Win32)
• Fix GC_unregister_my_thread to ensure no ongoing incremental GC (Win32)
• Fix GC_with_callee_saves_pushed for clang (disable __builtin_unwind_init)
• Fix calloc, GC_generic_malloc to check for allocation size overflows
• Fix compiler warning in GC_dyld_image_add/remove (Darwin)
• Fix configure --enable-cplusplus make install
• Fix configure to disable GCC aliasing optimization unless forced to
• Fix duplicate definitions in gcconfig.h for NetBSD
• Fix fork() support on Cygwin and Darwin targets
• Fix gc.h compatibility regression regarding GC_PTR, GC_I_HIDE_POINTERS
• Fix gc_cpp.cc for Cygwin (remove duplicate function definition)
• Fix gcconfig.h to define USE_GET_STACKBASE_FOR_MAIN for Android
• Fix gcconfig.h to handle mips64-linux target
• Fix gctest (for Win32) to avoid GC_print_stats internal variable usage
• Fix mach_dep.c to include sys/ucontext.h on Mac OS X 10.6
• Fix tests to check GC_malloc result for NULL (out-of-memory)
• Fix thread model in configure for MinGW ("win32" instead of "posix")
• Fix various warnings reported by LINT-like tools
• Fix visibility of some GC internal symbols used by GNU GCJ currently
• Port some thread tests to Win32
• Refine API GC setters and getter comments regarding locking
• Refine GC_stackbottom description in gc.h
• Remove duplicate calls in GC_register_dynamic_libraries
• Remove locking in API GC_get_bytes_since_gc and friends
• Remove newly-added GC_get_heap_size/free_bytes_inner from API
• Remove some local variables that are unused
• Support multi-threading for RTEMS target
• Use global GC_noop_sink variable in GC_noop1 to suppress compiler warning
• Use pkg-config to pick up libatomic_ops, etc
• Workaround some Linux/arm kernels bug to get correct GC_nprocs value

Distribution Tarball

gc-7.2.tar.gz

7.3-alpha2

Changes

• Add 'const' qualifier to pointer argument of some API functions
• Add GC_UNDERSCORE_STDCALL, UNICODE macro templates to configure (Win32)
• Add GC_get_thr_restart_signal, GC_thread_is_registered to GC API
• Add GC_is_heap_ptr, GC_move_disappearing_link to GC API
• Add SHORT_DBG_HDRS macro template to configure
• Add Symbian port to mainline (porting done by Djamel Magri)
• Add TODO file
• Add assertion ensuring proper alignment of 'pushed' GC symbols
• Add assertion in GC_getspecific on qtid
• Add assertion to GC_incremental_protection_needs, refine documentation
• Add assertion to check GC_large_free_bytes by GC_finish_collection
• Add configure option to compile all library .c files into single gc.o
• Add cordtest to make check
• Add disclaim callbacks for efficient finalization (ENABLE_DISCLAIM)
• Add finalization.html to 'doc' folder
• Add javaxfc.h to the installation set of GC header files (configure)
• Add on-heap-resize event notification to API
• Adjust GC_log_printf format specifiers (regarding signed/unsigned long)
• Adjust GC_requested_heapsize on GC_init if GC_INITIAL_HEAP_SIZE given
• Allow GC_exclude_static_roots() region start to be unaligned
• Allow Win32 DllMain chaining on the client side
• Allow to exclude finalization support by GC_NO_FINALIZATION macro
• Allow to get memory via Win32 VirtualAlloc (USE_WINALLOC) on Cygwin
• Avoid unnecessary GC_find_limit invocation if GC_no_dls
• Avoid use of deprecated GC_dont_gc and GC_stackbottom in gctest
• Cast pointers to word (instead of unsigned long) in specific.h
• Changed the order in autogen.sh so ltmain exists in time for automake
• Declare privately and use handy GC_base_C() for constant object pointers
• Define GC_DLL if DLL_EXPORT at GC build (for Cygwin/MinGW)
• Define GC_READ_ENV_FILE in configure for WinCE unless gc-debug is off
• Do not compile backgraph.c unless configure '--enable-gc-debug'
• Do not compile pthread_stop_world.c for Cygwin/Darwin (configure)
• Do not install ancient new_gc_alloc.h broken for modern STL (configure)
• Enable GC_MIN_MARKERS to set minimal number of pthread-based markers
• Enable PARALLEL_MARK and THREAD_LOCAL_ALLOC for FreeBSD in configure
• Enable parallel mark by default in configure (Darwin/Linux/Solaris/Win32)
• Export GC_is_marked, GC_clear/set_mark_bit (for mark-bit manipulation)
• Extend thread-related debug messages
• Fix 'configure --enable-cplusplus' for Cygwin/MinGW
• Fix DATASTART (and other minor improvements) for NaCl target
• Fix GC_setspecific to prevent garbage collection inside
• Fix compiler warning in cordtest
• Fix minor warnings reported by GCC with '-pedantic' option
• Fix static data roots registration on Android (if GC is shared)
• Implement GC_get_stack_base for Darwin for single-threaded mode
• Improve GC_allochblk algorithm of block splitting when unmapping enabled
• Improve GC_collect_or_expand algorithm for many finalizers registered case
• In tests, print a message in case a test is a no-op
• Instruct configure to hide internal libgc.so symbols if supported by GCC
• Log amount of unmapped memory (if enabled) on marking-for-collection
• Make __data_start a weak symbol to allow loading modules on mips
• Move "cord" library tests to "cord/tests" folder
• Move asm machine-dependent files to "src" folder
• Move build tools sources to "tools" folder
• Move cord_pos.h to public headers folder
• Open log file in APPEND mode on Win32 (similar that on Unix/Cygwin)
• Optimize some functions by moving pthread_self calls out of LOCK section
• Place only major per-release changes description to ChangeLog (this file)
• Prevent compiler warnings in GC_FindTopOfStack and GC_ports (Darwin)
• Recognize GC_LOG_TO_FILE_ALWAYS macro to log to 'gc.log' by default
• Remove all auto-generated files from the repo
• Remove binary icon file for de_win
• Remove cordtest from "cord" library
• Remove duplicate MacOS_Test_config.h file
• Remove gc_amiga_redirects.h (included internally) from public headers
• Remove obsolete Makefile.DLL (superseded by Cygwin/MinGW configure)
• Remove obsolete unused asm files for ALPHA, HPUX, SGI, RS6000, ULTRIX
• Remove unsupported MMAP_STACKS (specific to Solaris threads)
• Remove unused ancient SILENT, STDC, NO_SIGNALS macros
• Replace ARGSUSED comment-based annotation with GCC 'unused' attribute
• Replace GC_ms_entry declaration with opaque definition for public API
• Replace long GC_markers global variable with int GC_markers_m1
• Replace pointer relational comparisons with non-pointer ones
• Replace printf PRIxMAX specifier with '%p' for thread id debug output
• Require autoconf 2.61 instead of v2.64
• Simplify autogen.sh (use autoreconf)
• Split GC_abort with GC_on_abort and abort() invoked from ABORT
• Support GC_ATTR_MALLOC for MS VisualStudio
• Tag auxiliary malloc-like API functions with 'malloc' attribute
• Tag deprecated variables in GC API
• Tag must-be-non-null arguments of GC API functions
• Turn on "extra" GCC warnings
• Turn on unused-parameter checking for GCC
• Update AUTHORS file
• Use EXPECT for checking various 'initialized' boolean variables
• Use USE_COMPILER_TLS on Cygwin
• Use pthread_key for thread-local storage on FreeBSD
• Use union of AO_t and word to favor strict-aliasing compiler optimization
  Also, includes 7.2 changes

Distribution Tarball

gc-7.3alpha2.tar.gz

6.8

Changes:

• Added some support for Dragonfly BSD (thanks to Joerg Sonnenberger and
  Thomas Klausner).
• Improvements to the HP/UX section of configure.in/configure.ac (thanks
  to Andreas Tobler).
• GC_unix_get_mem could neglect to release the malloc lock on Irix, under
  extremely unlikely circumstances. (Thanks to Jean-Baptiste Nivois for
  some careful code inspection.)
• Added support for kFreeBSD + glibc (thanks to Petr Salinger).
• Fix more MacOS threads memory leaks (thanks to Allan Hsu).
• Added initial Solaris/X86-64 support (thanks to Rainer Orth).

Distribution Tarball:
gc6.8.tar.gz