7.2i

Note

This release is not recommended for the downstream package maintainers (because of libgc version-info incompatible change).

Changes

• Avoid data race in finalized_count (gctest)
• Fix assertion violation about disabled cancel in try_to_collect_inner
• Fix data race in a list referenced by A.aa (gctest)
• Fix data race in do_local_mark when comparing active_count to helper_count
• Fix data race in GC_init_explicit_typing
• Fix data race in last_stop_count access (suspend_handler_inner)
• Fix data race in mark_thread when updating mark_no
• Fix data race when getting object size in explicitly-typed allocators
• Fix lack of barriers to synchronize memory for suspend_handler
• Fix typos in cdescr.html, extend_size_map and ews4800 doc, README.sgi
• Prevent 'Unexpected heap growth' in single-threaded gctest (Linux/x64)

Build status

Travis CI build
AppVeyor CI build

Distribution Tarball

gc-7.2i.tar.gz (see the Assets above; includes a copy of libatomic_ops-7.2i)

7.4.6

Note

This release is not recommended for the downstream package maintainers (because of libgc version-info incompatible change).

Changes

• 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

Build status

Travis CI build
AppVeyor CI build

Distribution Tarball

gc-7.4.6.tar.gz (see below)

7.2h

Note

This release is not recommended for the downstream package maintainers (because of libgc version-info incompatible change).

Changes

• Add gctest as a test (CMake)
• Change no-argument functions declaration style to ANSI C (extra files)
• Do not allow SHORT_DBG_HDRS if KEEP_BACK_PTRS or MAKE_BACK_GRAPH
• Ensure oom_fn callback executed on out-of-memory in calloc
• Fix '~' operator application to unsigned values shorter than word
• Fix 'context local variable might be clobbered by setjmp' compiler warning
• Fix 'doc' files installation folder
• Fix 'shift count >= width of type' compiler warning in GC_SQRT_SIZE_MAX
• Fix ALL_INTERIOR_POINTERS name in comments and documentation
• Fix AO_SRC_DIR target name in NT_*_MAKEFILE
• Fix assertion in GC_mark_from for non-heap regions
• Fix assertion in GC_steal_mark_stack for non-heap regions
• Fix assertion violation in GC_repeat_read if --enable-redirect-malloc
• Fix assertion violation in GC_wait_builder called from start_mark_threads
• Fix assertion violation in mark_local checking GC_mark_stack_top
• Fix bm_huge initialization for 64-bit targets (gctest)
• Fix broken external links in documentation
• Fix bytes count passed to add_to_our_memory in backgraph new_back_edges
• Fix calloc_explicitly_typed in case of lb*n overflow
• Fix CMake warning about CMP0054 by unquoting instances of HOST
• Fix conditional expression in pos_fetch, next non-macro definitions (cord)
• Fix configure --disable-munmap handling
• Fix CORD_substr_closure for the case when CORD_from_fn returns C string
• Fix crash in FirstDLOpenedLinkMap if app linked statically (Alpine Linux)
• Fix double multiplication of lb by n in calloc_explicitly_typed
• Fix enable_parallel_mark condition in CMake script
• Fix external libatomic_ops pkg-config-based detection
• Fix gc_allocator.h file name in new_gc_alloc.h comment
• Fix gc_backptr.h, gc_mark.h, GC_DS_TAGS names in documentation
• Fix gc_cleanup destructor for non-heap objects (gc_cpp)
• Fix GC_collect_or_expand to prevent allocation size value wrap-around
• Fix GC_incremental declaration/definition type mismatch
• Fix GC_mark_stack_top assertion violation properly in mark_local
• Fix GC_requested_heapsize increment in GC_init
• Fix GC_SIZE_MAX definition (Linux/musl-gcc)
• Fix GCJ support in CMake build script
• Fix gctest crash if configure --enable-handle-fork on Darwin
• Fix header filename in gcconfig.h comment
• Fix integer shift undefined behavior in GC_init_explicit_typing
• Fix leak_test crash in print_callers if free() is redirected
• Fix Makefile.direct recursive invocation
• Fix malloc routines to prevent size value wrap-around (fix CVE-2016-9427)
• Fix missing win32_threads.c compilation for Cygwin (CMake)
• Fix MS VC warning about compiling unused checksums and thread_local_alloc
• Fix name typos in GC_FAST_MALLOC_GRANS comment
• Fix null dereference in reclaim_block if DONT_ADD_BYTE_AT_END
• Fix OSF1 host pattern in CMakeLists.txt
• Fix PCR-Makefile by removing compilation of a missing file
• Fix potential data race in GC_SysVGetDataStart (SPARC)
• Fix potential integer overflow in GC_find_limit_* functions
• Fix push_complex_descriptor to avoid unlimited global mark stack growth
• Fix SIGSEGV in GC_is_marked when gc_cleanup is used in leak-finding mode
• Fix Solaris/sparc detection in case of strict C compliance is enforced
• Fix STACKBOTTOM for Solaris 11/x86
• Fix storage class of local variable in register_dynamic_libraries (Irix)
• Fix tools/setjmp_t hang (OS X)
• Fix typed_test to prevent fails in malloc_explicitly_typed (64-bit)
• Fix undefined HEAP_START in register_dynamic_libraries
• Fix various typos in comments, documentation and printed messages
• Handle load_segs overflow in register_dynlib_callback gracefully
• Prevent misleading AC_MSG_ERROR/AS_IF errors reported in configure.ac
• Replace (fix) 'objs' acronym in comments with 'objects' word
• Revert "Skip GC_DS_PER_OBJECT objs with negative descriptor in GC_mark_from"
• Update documentation about bugs reporting and new releases notification
• Update Download information in GC overview document
• Update shared libraries version info (v7.2)
• Workaround a bug in winpthreads causing parallel marks deadlock (MinGW)
• Workaround missing getcontext() in Docker osrf/ubuntu_32bit

Build status

Travis CI build
AppVeyor CI build

Distribution Tarball

gc-7.2h.tar.gz (see below; includes a copy of libatomic_ops-7.2h)

7.6.0

Changes

• 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

Distribution Tarball

gc-7.6.0.tar.gz

Backup of BDWGC mailing lists

This is not related to this release actually, just a convenient place to keep the archives of the BDWGC announcements and technical discussions (Dec 2002 - Apr 2017):

• bdwgc-announce@lists.opendylan.org: bdwgc-announce-mailing-list-archive-2014_02.tar.gz
• bdwgc@lists.opendylan.org: bdwgc-mailing-list-archive-2017_04.tar.gz

7.4.4

Changes

• 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)
• Fix 'signed-to-bigger-unsigned value assignment' in GC_init_size_map
• Fix 'signed-to-bigger-unsigned value assignment' warning for hb_map
• Fix 'signed-to-bigger-unsigned value assignment' warning in GC_setpagesize
• Fix 'statement unreachable' compiler warning in GC_mark_from
• Fix 'statement unreachable' compiler warning in memalign
• Fix 'unused label' compiler warning in cord/de
• Fix 'value truncated' compiler warning in CORD_cat (MS VC)
• Fix 'variable unused' warning in GC_save_callers
• Fix 'visibility attribute not supported' GCC warning (IBM AIX)
• Fix CMake warning about CMP0054 by unquoting instances of HOST
• Fix Cygwin64 build
• Fix GC_REALLOC to call GC_FREE if new size is zero and pointer is non-NULL
• Fix Makefile.direct for Cygwin
• Fix alloc_size availability detection (Clang)
• Fix abort message in GC_move_long_link
• Fix and code refactoring of lock elision workaround (Linux/x64)
• Fix assertion on mark_lock_holder for non-unique NUMERIC_THREAD_ID
• Fix data race in GC_init_explicit_typing
• Fix gc.mak regarding msvc_dbg and test (MSVC)
• Fix missing error handling of pthread_attr_init/getstacksize
• Fix missing error handling of pthreads_mutex_init and cond_wait
• Fix missing numeric casts in cord
• Fix potential left shift overflows in finalize.c (64-bit targets)
• Fix pthreads-win32 name in comments and documentation
• Fix setup_mark_lock missing prototype
• Fix unchecked fcntl() result
• Fix unchecked pointer dereference in check_ints (gctest)
• Fix unchecked pthread_join() result in threadkey_test
• Fix unchecked sigdelset() result in pthread_support
• Fix undefined PTRFREE/NORMAL in gc_inline.h
• Prefix PREFETCH_FOR_WRITE with GC_ as used in gc_inline.h public header
• Relax mark_mutex attribute needed to disable elision (Linux/x64)
• Remove (deprecate) TODO file
• Remove code duplication in GC_realloc
• Remove duplicate new-line in OUT_OF_MEMORY message (cord)
• Remove references to missing linux_threads.c from documentation
• Revert "Move asm machine-dependent files to 'src' folder" (partly)
• Support Android API level 21
• Update compiler options in gc.mak (Win32)
• Use mmap instead of sbrk (Hurd)
• Workaround 'comparison is always false' GCC warning in GC_FAST_MALLOC_GRANS
• Workaround 'identical expr on both sides of bitwise op' warning
• Workaround Linux NTPL lock elision bug
• Workaround false warning about unreachable code path
• Workaround invalid '_end' symbol on Android clang 3.5+
  Also, includes 7.2g changes

Distribution Tarball

gc-7.4.4.tar.gz

7.2g

Changes

• Fix 'illegal option -xassembler-with-cpp' error (Oracle SunCC)
• Fix 'implicit declaration of function' compiler warnings in cord/de
• Fix CFLAGS in configure regarding -O flag passing to SunCC compiler
• Fix FirstDLOpenedLinkMap for case libgc not 1st dynamically linked (NetBSD)
• Fix GC initialization in cord de_win for Cygwin
• Fix GC_get_stack_base if called before GC_init (Win32)
• Fix OSX issue with pthread_attr_setstacksize failure
• Fix Unicode Win32 API calls in cord de_win
• Fix USE_COMPILER_TLS macro duplicate description in README
• Fix cord de_win WndProc prototype parameters for 64-bit (Win64)
• Fix file descriptor resource leak in GC_register_data_segments (OS/2)
• Fix filename printing in cordtest
• Fix missing cord_pos.h, ec.h among installed headers (Automake)
• Fix missing GC_get_stack_base for Amiga
• Fix missing msvc_dbg.h in dist_noinst_HEADERS (Automake)
• Fix mistyped ARM_THREAD_STATE macro (Darwin/arm)
• Fix null-pointer dereferences on out-of-memory in cord and tests
• Fix potential multiplication overflow in check_heap_stats (gctest)
• Fix race (and potential deadlock) at marker threads initialization
• Fix signedness of char values passed to isspace, iscntrl, isxdigit
• Fix typo (items numbering) in GC_finalize_all documentation
• Fix typos in ERROR_FL, GC_malloc_uncollectable comments
• Fix typos in gc_priv.h, in README for ews4800
• Fix unresolved vsnprintf in misc.c and snprintf in cordtest (DJGPP, VC)
• Fix various spelling errors
• Fix vsprintf_args initialization/cleanup in CORD_vsprintf for EMX
• Regenerate configure files using official libtool release (v2.4.2)
• Remove documentation about obsolete GC_REDIRECT_TO_LOCAL
• Skip GC_DS_PER_OBJECT objects with negative descriptor in GC_mark_from
• windows-untested: Fix paths to msvc_dbg.c/h

Distribution Tarball

gc-7.2g.tar.gz

7.2f

Changes

• Fix 'Bad signal in suspend_handler' abort on FreeBSD-9.2
• Fix 'source file in a subdirectory' Automake warnings
• Fix ABORT message in GC_restart_handler
• Fix ADD_DEFINITION in CMakeLists.txt for kFreeBSD
• Fix CMakeLists.txt: do not override CMAKE_OSX_ARCHITECTURES
• Fix GC_alloc_large by bumping GC_collect_at_heapsize in GC_add_to_heap
• Fix GC_scratch_last_end_ptr update on GC_scratch_alloc failure
• Fix GET_MEM argument rounding in GC_scratch_alloc and similar
• Fix PARALLEL_MARK for Windows 7+
• Fix build (broken by fenv.h inclusion) on Linux/x86_64 under uClibc
• Fix crash when using GC_malloc_many() as first allocation call
• Fix mark stack excessive growth during parallel mark
• Fix or remove broken URLs in documentation
• Fix out-of-memory case in new_back_edges, push_in_progress (backgraph)
• Fix typo in GC_collect_or_expand comment
• Fix typos in GC overview file, gc_config_macros.h, gc_cpp.h, README.changes
• Regenerate configure files by automake 1.14.1, libtool 2.4.2.418
• Update emails/links due to project site and ML transition

Distribution Tarball

gc-7.2f.tar.gz

7.4.2

Changes

• Add config option to use STGRTMIN-based signals for thread suspend/resume
• Allow parallel mark to be enabled on powerpc-linux systems
• Check for Fujitsu compiler in builtin_unwind logic (enable FX10/K-Computer)
• Fix 'Array subscript is above array bounds' GCC warning in GC_new_kind/proc
• Fix 'attribute declaration must precede definition' warning (clang-3.1)
• Fix (enable) Cygwin-64 build
• Fix GC_finalized_malloc failure on disclaim_test
• Fix GC_sig_suspend initialization when non-constant SIGRTMIN used
• Fix MS VC redefinition warning for functions declared with GC_ATTR_MALLOC
• Fix TEXT() usage for concatenated strings in GC_CreateLogFile (Win32)
• Fix data roots registration for Android/x86 and NDK ARM 'gold' linker
• Fix find stackbottom on BlueGene P/Q systems
• Fix machdep .lo files path in configure (SPARC, IA-64)
• Fix ok_init assignment (missing cast) in GC_new_kind_inner
• Fix typos in names in AUTHORS and ChangeLog files
• Remove barrett_diagram file duplicated by tree.html
• Remove non-existing DISCARD_WORDS from GC data structure ASCII diagram
• Restore contribution information for ancient releases in ChangeLog
  Also, includes 7.2f changes

Distribution Tarball

gc-7.4.2.tar.gz

7.4.0

Changes

• Add 'bytes reclaimed' counters to public GC_prof_stats_s
• Add AArch64 (64-bit ARM) target support
• Add GC_LONG_REFS_NOT_NEEDED ifdefs to exclude long link functionality
• Add GC_get_prof_stats_unsafe to GC public API
• Add GC_push_all/conditional() to GC public API
• Add assertion on number_of_objs to GC_extend_size_map
• Add assertion to GC_enable() ensuring no counter underflow
• Add assertion to LOCK definition that lock is not already held
• Add assertion to LONG_MULT and remove useless assert in PUSH_CONTENTS_HDR
• Add double-lock assertion to GC_acquire_mark_lock
• Add manual POSIX fork handling support (Android)
• Add note about 'pkg-config' solving problem with autoconf 2.68 or older
• Add public GC_set/get_abort_func to replace default GC_on_abort
• Add public GC_start_mark_threads() to allow parallel marker in fork child
• Add public setter and getter for GC_push_other_roots
• Add support of Android logger
• Add tests for GC_register/move/unregister_long_link
• Add thread suspend/resume signals public setters (POSIX threads)
• Added long weakref support
• Adjust GC_dont_expand/gc/precollect and GC_print_stats type to match gc.h
• Adjust README.md title and references to doc .html files in it
• Adjust build scripts to enable additional test library in staticrootstest
• Adjust logged messages in start_mark_threads and GC_thr_init
• Adjust printf format specifiers in GC_print_trace
• Allow not to rely on __data_start value (Linux)
• Allow pthread_kill error code logging in GC_suspend/resume (debugging)
• Allow to compile GC_inner_start_routine aside from extra/gc.c
• Allow to omit libc atexit() call
• Avoid LOCK/UNLOCK hard-coding in gc_locks.h for PS3 target
• Better document GC_warn_proc in gc.h
• Call GC_on_abort (with NULL argument) on exit(1)
• Call GC_stats/verbose_log_printf instead of GC_log_printf if print_stats
• Change policy regarding version numbers ("micro" part instead of "alpha")
• Changed C99-style designated init of GC_dl_hashtbl struct to use C89-style
• Check GC_base result in GC_print_all_smashed_proc
• Check that SIG_SUSPEND and SIG_THR_RESTART are different (Pthreads)
• Check traceable_allocator.allocate result before dereference in test_cpp
• Code refactoring of GC_x_printf (move shared code to macro)
• Convert readme to markdown
• Default to use libc_stack_end in single-threaded GC on glibc targets
• Define GC_VSNPRINTF internal macro in misc.c (code refactoring)
• Define functions in darwin_semaphore.h as inline instead of static
• Define old_bus_handler static variable only if used (Unix)
• Detect dladdr() presence by configure
• Disable find-leak GC_gcollect on GC abnormal EXIT
• Do not define _setjmp/_longjmp macros in mach_dep.c
• Do not duplicate android_log_write output to GC log file (Android)
• Do not include sigcontext.h if NO_SIGCONTEXT_H (Linux)
• Do not set GC_lock_holder by call_with_alloc_lock if assertions disabled
• Do not use pthread_getattr_np if NO_PTHREAD_GETATTR_NP specified
• Elaborate comment on dependencies in autogen.sh
• Eliminate 'cast from int to pointer' warning in GC_exclude_static_roots
• Eliminate 'missing exception specification' warning in gc_cpp.cc (Clang)
• Eliminate 'uninitialized variable use' warning in test_printf (cord)
• Eliminate 'unused result' compiler warning in main() of test_cpp
• Eliminate 'unused value' compiler warning in GC_stop_world (Pthreads)
• Eliminate 'unused variable' compiler warning in start_mark_threads (HP/UX)
• Eliminate Clang warning for GC_pthread_exit attribute
• Eliminate GCC warning about uninitialized 'hhdr' in GC_allochblk_nth
• Eliminate GCC warning in GC_get_main_stack_base (OpenBSD)
• Eliminate GCC warnings in setjmp_t.c, test_cpp and cord 'de' app
• Eliminate GC_first_nonempty atomic value reload in GC_mark_local assertion
• Eliminate SIGBUS-related dead code in GC_write_fault_handler (Linux)
• Eliminate warning and simplify expression in GC_init_explicit_typing
• Enable 'force GC at every GC_malloc' debug-related functionality
• Enable on-demand debug logging in GC_FindTopOfStack (Darwin)
• Enable prefetch operations by default (GCC 3.0+)
• Enable staticrootstest for the case of GC shared library build
• Enable thread-local allocation support for Clang on Cygwin
• Explicitly specify that Darwin, Linux and Solaris platforms have dladdr
• Fix ABORT definition for mingw32ce (WinCE)
• Fix AM_CONFIG_HEADER in configure for autoconf-2.69-1
• Fix GC_CreateThread and GC_beginthreadex definition for Cygwin
• Fix GC_INIT_CONF_ROOTS in gc.h for Android
• Fix GC_INLINE definition to comply with ISO C90 standard (GCC)
• Fix GC_remove_all_threads_but_me for Android (fork support)
• Fix debug_register_displacement calls from GC_debug_generic_malloc_inner
• Fix dyn_load.c compilation for Android 4.3
• Fix make disclaim_test to link with new GNU ld linking rules
• Improve GC error printing atomicity in GC_debug_X and GC_print_obj
• Improve GC output atomicity in GC_print_obj, GC_print_all_errors
• Improve debug-only messages of add/remove_roots and init_linux_data_start
• Improve fork test logging in gctest
• Improve logged messages about heap size and usage
• Improve logging for Android differentiating messages by log level
• Improve staticrootstest (add global data to library, add lib w/o GC_INIT)
• Improve staticrootstest checks (tests)
• Include "config.h" instead of "private/config.h" on HAVE_CONFIG_H
• Include proper header file in 'tools' for configuration macros
• Include pthread_np.h from pthread_stop_world.c on OpenBSD
• Log error messages to stderr instead of stdout in tests
• Make GC_generic_malloc_ignore_off_page() public
• Make GC_mark_lock_holder variable static
• Make GC_print_trace always thread-safe and remove 'lock' argument
• Mark GC_started_thread_while_stopped() as GC_INNER
• Minimize code duplication in GC_mark_and_push
• Move 'include setjmp.h' from mach_dep.c to gc_priv.h
• Move GC_OPENBSD_UTHREADS definition to private/gcconfig.h (OpenBSD)
• Move GC_get_suspend/thr_restart_signal to misc.c for NaCl and OpenBSD
• Move LOCK/UNLOCK from GC_unregister_disappearing_link_inner outer
• Port BDWGC to Android/x86
• Postpone the suspend signal in GC_dirty_init only if used to stop world
• Prepend '#' symbol to GC number in logged messages
• Prevent POSIX fork if mprotect_thread is started (Darwin)
• Prevent abort on GC_err/warn_printf write failure
• Prevent misleading AC_MSG_ERROR/AS_IF errors reported in configure.ac
• Put gc_cpp symbols into 'boehmgc' namespace if GC_NAMESPACE defined
• Recognize GC_DONT_GC macro in gc.h (causes GC_INIT to turn off GC)
• Recognize GC_SIG_SUSPEND and GC_SIG_THR_RESTART tuning macros in gc.h
• Redirect WRITE to __android_log_write if GC_ANDROID_LOG (Android)
• Refine comment of GC_is_heap_ptr and GC_thread_is_registered in gc.h
• Register dynamic libraries via dl_iterate_phdr on Android and OpenBSD
• Remove DebugBreak on WriteFile failure (Win32)
• Remove GC_BUILD definition from build scripts
• Remove abort on open log failure from GC_write (Win32)
• Remove configure.ac outdated revision number
• Remove nested EXPECT in GC_core_finalized_malloc
• Remove nested always-false ifdef for HPUX and FREEBSD
• Remove redundant GC_err_printf before abort
• Remove unused UTHREAD_SP_OFFSET macro (OpenBSD)
• Rename subthread_create to subthreadcreate_test (Makefile)
• Replace GC_COND_LOG_PRINTF calls with WARN for allocation failure messages
• Replace GC_log/err_printf() followed by ABORT with ABORT_ARGn()
• Replace GC_stats_log_printf with GC_DBG/INFOLOG_PRINTF
• Replace SIG_SUSPEND/THR_RESTART macros to variables in pthread_stop_world
• Replace Win32 GC_delete_gc_thread with GC_delete_gc_thread_no_free
• Replace conditional GC_log_printf calls with GC_COND/VERBOSE_LOG_PRINTF
• Replace sprintf with defensive snprintf
• Replace var-args GC_noop with GC_noop6 (to eliminate Clang warning)
• Simplify LOCK/UNLOCK macro definition for static code analysis tools
• Specify GC_malloc result is unused in some tests
• Specify GC_pthread_join result is unused in threadkey_test
• Specify LT_INIT in configure.ac
• Start of port to QNX
• Support rthreads introduced in OpenBSD 5.2+
• Suppress 'GC_dont_gc deprecated' warning in gc.h if GC_DONT_GC
• Tag GC malloc routines with alloc_size attribute for Clang 3.2+
• Test NO_WRAP_MARK_SOME macro to suppress WRAP_MARK_SOME-specific code
• Turn off GC_LOOP_ON_ABORT functionality if GC compiled with NO_DEBUGGING
• Turn on world-stop delay logging at debug level by default for Android
• Use EXPECT in GC_COND/VERBOSE_LOG_PRINTF
• Use GC_log_printf for logging instead of GC_[err_]printf
• Use compiler TLS for Android NDK gcc/arm
• Use memcpy (BCOPY) instead of strcpy (to suppress GCC warning)
• Use pthread API to operate thread-local data on Linux if no compiler TLS
• Workaround 'ELF_DATA/EM_ALPHA redefined' warning in Android linker.h
• Workaround 'unresolved __tls_get_addr' error for Android NDK Clang
  Also, includes 7.2e, 7.2d, 7.2c, 7.2b changes

Distribution Tarball

gc-7.4.0.tar.gz

7.2e

Changes

• Add weak attribute to avoid __data_start undefined messages (s390x)
• Add weak stubs for pthread_cancel API
• Adjust 'pthread_[un]register_cancel undefined ref' workaround (Pthreads)
• Append _test suffix to 'initsecondarythread' binary file names
• Enable PARALLEL_MARK and THREAD_LOCAL_ALLOC for FreeBSD in configure
• Fix 'stack section' pointer passed to push_all_stack_sections (Pthreads)
• Fix GC_CreateThread 'dwStackSize' argument type for Win64
• Fix GC_PTHREAD_PTRVAL definition for GC_PTHREADS_PARAMARK (Win32)
• Fix GC_clear_stack by declaring 'dummy' local array as volatile
• Fix GC_get_stack_base assembly code (Cygwin/Clang)
• Fix GC_malloc_explicitly_typed_ignore_off_page for large allocations
• Fix GC_marker_Id elements initialization (WinCE)
• Fix GC_print_trace missing unlock
• Fix GC_unix_mmap_get_mem for open of /dev/zero failure
• Fix GC_win32_free_heap compilation error for Cygwin
• Fix GC_win32_free_heap to prevent memory leak if USE_GLOBAL_ALLOC
• Fix Win32 GC_write preventing potential infinite recursion at abort
• Fix assertion violation in GC_mark_from prefetch loop
• Fix collection of objects referenced only from GC_mark_stack_X variables
• Fix dwSize argument of VirtualFree call in detect_GetWriteWatch (Win32)
• Fix heap sections overflow for Win32/Cygwin with enabled parallel marker
• Fix min_bytes_allocd preventing potential infinite loop in GC_allocobj
• Fix missing tabs in SMakefile.amiga file
• Fix null-pointer dereference in CORD_substr_closure
• Fix old_segv/bus_act variables initialization for FreeBSD
• Fix potential double fclose in test_extras (cordtest)
• Fix pthread_attr_t resource leak in pthread_create
• Fix race in GC_print_all_errors regarding GC_leaked
• Fix sizeof in GC_push_thread_structures
• Fix stackbottom/stack_end assignment in GC_call_with_gc_active
• Fix tests makefile to link with new GNU ld linking rules
• Fix typos in comments and documentation
• Fix unportable '==' test operators in configure
• Fix vsprintf_args cleanup in CORD_vsprintf
• Merge FreeBSD New ports collection for boehm-gc v7.2d
• Replace GC_DBG_RA with GC_DBG_EXTRAS macro
• Replace deprecated [CXX]INCLUDES to AM_C[PP]FLAGS in configure.ac file
• Use __builtin_extract_return_addr in GC_RETURN_ADDR_PARENT (gcc/x86)

Distribution Tarball

gc-7.2e.tar.gz