8.2.8

Changes

• Allow GC_size() argument to be null
• Disable backtrace saving at garbage collections if DONT_SAVE_TO_LAST_STACK
• Eliminate 'cast signed to bigger unsigned' CSA warnings in GC_find_limit
• Eliminate 'x might be clobbered by longjmp' gcc warning in setjmp_t.c
• Fix 'un-mprotect vdb failed' abort with out-of-memory reason on Linux
• Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
• Fix GC_debug_realloc to support custom kind
• Fix GC_is_visible for case of arg pointing exactly to object upper bound
• Fix GC_print_trace_inner to print the last element of the circular buffer
• Fix cordtst2.tmp file deletion in cordtest on Windows
• Fix double lock in GC_malloc called from backtrace()
• Fix handling of page-unaligned boundaries in soft_set_grungy_pages
• Fix heap blocks size computation by GC_get_memory_use
• Fix indent of a closing curly braces in GC_apply_to_all_blocks
• Fix infinite resend lost signals if a thread is restarted by SIGQUIT
• Fix null pointer dereference in GC_is_visible if type_descr is null
• Fix per_object_helper() after changing hb_sz units
• Fix pointer relational comparison in GC_do_enumerate_reachable_objects
• Fix poor thread-local allocation performance because of double EXTRA_BYTES
• Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
• Fix potential address overflow in GC_add_to_heap
• Fix potential buffer overrun during read in GC_text_mapping
• Fix various typos in comments
• Prevent GC_noop_sink from scanning by the collector
• Prevent redirected malloc call from a garbage collection routine
• Redirect malloc_usable_size() in leak_detector.h
• Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
• Update and fix diagrams describing the tree structure for pointer lookups
• Use atomic store to set GC_first_nonempty in GC_do_parallel_mark
• Use atomic store to set entry id and update cache_ptr in slow_getspecific
• Workaround '.obj file not found' error reported by watcom wlib

Build status

Travis CI build
AppVeyor CI build
Github actions build

Distribution tarball

gc-8.2.8.tar.gz (see the Assets, md5: ad7298be1a300fc0ce75196718036c61)

8.0.14

Changes

• Avoid gcc stringop-overflow warning for intended overflow in smashtest
• Disable backtrace saving at garbage collections if DONT_SAVE_TO_LAST_STACK
• Eliminate 'cast signed to bigger unsigned' CSA warnings in GC_find_limit
• Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
• Fix GC_debug_realloc to support custom kind
• Fix GC_is_visible for case of arg pointing exactly to object upper bound
• Fix GC_print_trace_inner to print the last element of the circular buffer
• Fix cordtst2.tmp file deletion in cordtest on Windows
• Fix double lock in GC_malloc called from backtrace()
• Fix heap blocks size computation by GC_get_memory_use
• Fix indent of a closing curly braces in GC_apply_to_all_blocks
• Fix infinite resend lost signals if a thread is restarted by SIGQUIT
• Fix null pointer dereference in GC_is_visible if type_descr is null
• Fix per_object_helper() after changing hb_sz units
• Fix pointer relational comparison in GC_do_enumerate_reachable_objects
• Fix poor thread-local allocation performance because of double EXTRA_BYTES
• Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
• Fix potential address overflow in GC_add_to_heap
• Fix potential buffer overrun during read in GC_text_mapping
• Fix typos in comments
• Prevent GC_noop_sink from scanning by the collector
• Prevent redirected malloc call from a garbage collection routine
• Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
• Update and fix diagrams describing the tree structure for pointer lookups

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-8.0.14.tar.gz (see the Assets, md5: 22721960fc4a6ed7fa39bd6d4985ee40)

7.6.22

Changes

• Avoid gcc stringop-overflow warning for intended overflow in smashtest
• Eliminate 'cast signed to bigger unsigned' CSA warnings in GC_find_limit
• Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
• Fix GC_debug_realloc to support custom kind
• Fix GC_is_visible for case of arg pointing exactly to object upper bound
• Fix GC_print_trace_inner to print the last element of the circular buffer
• Fix cordtst2.tmp file deletion in cordtest on Windows
• Fix double lock in GC_malloc called from backtrace()
• Fix heap blocks size computation by GC_get_memory_use
• Fix indent of a closing curly braces in GC_apply_to_all_blocks
• Fix null pointer dereference in GC_is_visible if type_descr is null
• Fix per_object_helper() after changing hb_sz units
• Fix pointer relational comparison in GC_do_enumerate_reachable_objects
• Fix poor thread-local allocation performance because of double EXTRA_BYTES
• Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
• Fix potential address overflow in GC_add_to_heap
• Fix potential buffer overrun during read in GC_text_mapping
• Fix typos in comments
• Prevent GC_noop_sink from scanning by the collector
• Prevent redirected malloc call from a garbage collection routine
• Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
• Update and fix diagrams describing the tree structure for pointer lookups

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.6.22.tar.gz (see the Assets, md5: 6abe6ad592e1976d7a28e5661a8ea7c9)

7.4.28

Changes

• Avoid gcc stringop-overflow warning for intended overflow in smashtest
• Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
• Fix GC_is_visible for case of arg pointing exactly to object upper bound
• Fix GC_print_trace_inner to print the last element of the circular buffer
• Fix cordtst2.tmp file deletion in cordtest on Windows
• Fix double lock in GC_malloc called from backtrace()
• Fix indent of a closing curly braces in GC_apply_to_all_blocks
• Fix null pointer dereference in GC_is_visible if type_descr is null
• Fix per_object_helper() after changing hb_sz units
• Fix poor thread-local allocation performance because of double EXTRA_BYTES
• Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
• Fix potential address overflow in GC_add_to_heap
• Fix potential buffer overrun during read in GC_text_mapping
• Fix typos in comments
• Prevent redirected malloc call from a garbage collection routine
• Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
• Update and fix diagrams describing the tree structure for pointer lookups

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.4.28.tar.gz (see the Assets, md5: ab05315b0be2867f0e5e8b5cbe77f418)

7.2s

Changes

• Avoid gcc stringop-overflow warning for intended overflow in smashtest
• Eliminate 'type defaults to int in declaration' warning (REDIRECT_MALLOC)
• Eliminate 'value exceeds maximum object size' GCC warning in huge_test
• Eliminate warning and simplify expression in GC_init_explicit_typing
• Fix 'GetVersion deprecated' compiler warning in os_dep (MS VC)
• Fix 'value truncated' compiler warning in CORD_cat (MS VC)
• Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
• Fix GC_is_visible for case of arg pointing exactly to object upper bound
• Fix GC_jmp_buf multiple definition
• Fix GC_print_trace_inner to print the last element of the circular buffer
• Fix double lock in GC_malloc called from backtrace()
• Fix indent of a closing curly braces in GC_apply_to_all_blocks
• Fix null pointer dereference in GC_is_visible if type_descr is null
• Fix per_object_helper() after changing hb_sz units
• Fix poor thread-local allocation performance because of double EXTRA_BYTES
• Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
• Fix potential address overflow in GC_add_to_heap
• Fix potential buffer overrun during read in GC_text_mapping
• Fix typos in comments
• Prevent compiler warnings regarding unused argument and printf in extra
• Prevent redirected malloc call from a garbage collection routine
• Remove barrett_diagram file duplicated by tree.html
• Remove non-existing DISCARD_WORDS from GC data structure ASCII diagram
• Resolve GCC warning in setjmp_t.c
• Update and fix diagrams describing the tree structure for pointer lookups

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.2s.tar.gz (see the Assets, includes a copy of libatomic_ops-7.2l, md5: 268deee462882d079cec2e1be0316474)

8.2.6

Changes

• Avoid unexpected heap growth in gctest for the case of VERY_SMALL_CONFIG
• Change gc.man to include gc/gc.h
• Check for out-of-memory on every memory allocation in tests
• Do not compile pthread_start.c on Cygwin even if build shared libs (CMake)
• Eliminate 'alloc_small declared but unused' gcc warning in gctest
• Eliminate 'make_key is defined but unused' gcc warning in threadkeytest
• Eliminate 'old_segv_handler is defined but unused' gcc warning on OpenBSD
• Eliminate 'rand() may return deterministic values' warning
• Eliminate 'unused parameter' compiler warnings reported by MS clang
• Eliminate 'unused parameter' gcc warning in free() if IGNORE_FREE
• Eliminate 'unused value' gcc warnings in init_global_static_roots (Symbian)
• Eliminate GCC warning of unsafe __builtin_return_address(1) in Cmake script
• Eliminate compiler warning of missing cast in LONG_MULT after shift
• Eliminate warning of unused expression result in GC_FreeBSDGetDataStart
• Ensure _GNU_SOURCE is defined if HAVE_DLADDR is defined by configure
• Fix 'g++ not found' error on OpenBSD (Makefile.direct)
• Fix 'implicit declaration of function pthread_atfork' gcc error on MinGW
• Fix 'implicit declaration of function sbrk' gcc error on Symbian
• Fix 'implicit declaration of iscntrl()' warning in cord/de_win (MinGW)
• Fix 'info' buffer potential overrun in GC_save_callers
• Fix 'l-value specifies const object' MSVC error in GC_push_many_regs
• Fix 'linker input unused' error inside check_c_compiler_flag (CMake)
• Fix 'missing binary operator before token' gcc error in gcconfig.h
• Fix 'missing sysconf() prototype' gcc error in setjmp_t tool (OpenBSD)
• Fix 'sigset_t undeclared' MS VC error if pthreads-w32 is used
• Fix 'undefined reference' linker errors if shared build on OpenBSD (CMake)
• Fix 'unused GC_set_and_save_fault_handler' warning on OS X
• Fix GC_push_stack_for() to push also Xmm registers on Windows/x64
• Fix GC_set_handle_fork(1) on Darwin when MPROTECT_VDB but no threads
• Fix MACH_TYPE macro redefinition on Symbian/arm
• Fix SVR4 macro definition order
• Fix asm constraint in LONG_MULT for gcc/x86
• Fix assertion violation in GC_get_maps on Linux if malloc redirection
• Fix back graph and checksums support in WCC_MAKEFILE
• Fix bitwise negation and rounding direction in setjmp_t tool
• Fix checksums GC_record_fault invocation on Darwin
• Fix closing bracket placement for case statement in configure
• Fix deprecation warning about support of CMake older than v3.5
• Fix extra 'extern C' for include signal.h in gcconfig.h
• Fix getcontext() detection by CMake on OpenBSD
• Fix handling of GC_gc_no counter wrap in GC_clear_stack
• Fix handling of GC_gc_no counter wrap in GC_notify_or_invoke_finalizers
• Fix indent of a closing curly brace in GC_forward_exception
• Fix lock assertion violation in GC_try_to_collect_inner on OS X
• Fix missing GC_pthread_sigmask on FreeBSD and NetBSD
• Fix missing _setjmp() on djgpp
• Fix missing atomic barriers in CORD_from_file_lazy
• Fix missing outermost parentheses in CORD_pos_cur_char_addr and hugetest
• Fix missing redirect and implementation of pthread_sigmask() on OpenBSD
• Fix missing type widening before left shift in GC_MAKE_PROC
• Fix misspelled GC_HEADERS_H macro in gc_priv.h
• Fix null dereference in check_finalizer_nested if redirect malloc on Linux
• Fix posix_memalign() to overwrite pointer storage only on success
• Fix race in init_lib_bounds on Linux with glibc v2.34+ if redirect malloc
• Fix skipped removal of page protection in case of address hash collision
• Fix typos in comments
• Fix undefined GC_real_pthread_sigmask if redirect malloc on OS X
• Fix update of last_back_trace_gc_no if KEEP_BACK_PTRS is not defined
• Handle GC_gc_no counter overflow properly in GC_print_trace
• Include Darwin CoreFoundation.h only if 32-bit ARM
• Make gc_allocator members public
• Re-enable incremental mode on OS X (arm64)
• Remove .log and cordtest .tmp files by 'make clean' (Makefile.direct)
• Remove a redundant check of HOST_ANDROID in gcconfig.h
• Remove duplication of random numbers generator formula
• Specify constexpr in GC allocators if C++20 or later
• Support NetBSD/riscv64
• Support non-msys MinGW build by CMake
• Turn on handle fork by default on Darwin (multi-threaded only)
• Use AO primitives in GC_RAND_NEXT instead of no_sanitize attribute
• Workaround 'malloc inconsistent dll linkage' MS VC error in CMake script
• Workaround MS Clang failure to compile de_win.rc
• Workaround mark stack overflow in GC_push_finalizer_structures on MinGW

Build status

Travis CI build
AppVeyor CI build
Github actions build

Distribution tarball

gc-8.2.6.tar.gz (see the Assets, md5: fc5351214bc2e854070ee3319181a467)

8.0.12

Changes

• Eliminate 'make_key is defined but unused' gcc warning in threadkeytest
• Eliminate 'unused parameter' gcc warning in free() if IGNORE_FREE
• Eliminate 'unused value' gcc warnings in init_global_static_roots (Symbian)
• Eliminate compiler warning of missing cast in LONG_MULT after shift
• Ensure _GNU_SOURCE is defined if HAVE_DLADDR is defined by configure
• Fix 'g++ not found' error on OpenBSD (Makefile.direct)
• Fix 'implicit declaration of function pthread_atfork' gcc error on MinGW
• Fix 'implicit declaration of function sbrk' gcc error on Symbian
• Fix 'implicit declaration of iscntrl()' warning in cord/de_win (MinGW)
• Fix 'info' buffer potential overrun in GC_save_callers
• Fix 'missing binary operator before token' gcc error in gcconfig.h
• Fix 'missing sysconf() prototype' gcc error in setjmp_t tool (OpenBSD)
• Fix 'sigset_t undeclared' MS VC error if pthreads-w32 is used
• Fix 'unused GC_set_and_save_fault_handler' warning on OS X
• Fix GC_push_stack_for() to push also Xmm registers on Windows/x64
• Fix GC_set_handle_fork(1) on Darwin when MPROTECT_VDB but no threads
• Fix MACH_TYPE macro redefinition on Symbian/arm
• Fix SVR4 macro definition order
• Fix asm constraint in LONG_MULT for gcc/x86
• Fix assertion violation in GC_get_maps on Linux if malloc redirection
• Fix bitwise negation and rounding direction in setjmp_t tool
• Fix checksums GC_record_fault invocation on Darwin
• Fix closing bracket placement for case statement in configure
• Fix extra 'extern C' for include signal.h in gcconfig.h
• Fix indent of a closing curly brace in GC_forward_exception
• Fix lock assertion violation in GC_try_to_collect_inner on OS X
• Fix missing GC_pthread_sigmask on FreeBSD and NetBSD
• Fix missing outermost parentheses in CORD_pos_cur_char_addr
• Fix missing outermost parentheses in macro definitions in huge test
• Fix missing redirect and implementation of pthread_sigmask() on OpenBSD
• Fix missing type widening before left shift in GC_MAKE_PROC
• Fix misspelled GC_HEADERS_H macro in gc_priv.h
• Fix null dereference in check_finalizer_nested if redirect malloc on Linux
• Fix posix_memalign() to overwrite pointer storage only on success
• Fix skipped removal of page protection in case of address hash collision
• Fix typos in comments
• Fix undefined GC_real_pthread_sigmask if redirect malloc on OS X
• Fix update of last_back_trace_gc_no if KEEP_BACK_PTRS is not defined

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-8.0.12.tar.gz (see the Assets, md5: d9aad34402106ac31d9acdc7da139a37)

7.6.20

Changes

• Eliminate 'unused parameter' gcc warning in free() if IGNORE_FREE
• Eliminate 'unused value' gcc warnings in init_global_static_roots (Symbian)
• Eliminate compiler warning of missing cast in LONG_MULT after shift
• Fix 'g++ not found' error on OpenBSD (Makefile.direct)
• Fix 'implicit declaration of function sbrk' gcc error on Symbian
• Fix 'implicit declaration of iscntrl()' warning in cord/de_win (MinGW)
• Fix 'info' buffer potential overrun in GC_save_callers
• Fix 'missing sysconf() prototype' gcc error in setjmp_t tool (OpenBSD)
• Fix 'sigset_t undeclared' MS VC error if pthreads-w32 is used
• Fix 'unused GC_set_and_save_fault_handler' warning on OS X
• Fix GC_push_stack_for() to push also Xmm registers on Windows/x64
• Fix MACH_TYPE macro redefinition on Symbian/arm
• Fix SVR4 macro definition order
• Fix asm constraint in LONG_MULT for gcc/x86
• Fix assertion violation in GC_get_maps on Linux if malloc redirection
• Fix bitwise negation and rounding direction in setjmp_t tool
• Fix closing bracket placement for case statement in configure
• Fix indent of a closing curly brace in GC_forward_exception
• Fix lock assertion violation in GC_try_to_collect_inner on OS X
• Fix missing GC_pthread_sigmask on FreeBSD and NetBSD
• Fix missing outermost parentheses in CORD_pos_cur_char_addr
• Fix missing outermost parentheses in macro definitions in huge test
• Fix missing redirect and implementation of pthread_sigmask() on OpenBSD
• Fix missing type widening before left shift in GC_MAKE_PROC
• Fix misspelled GC_HEADERS_H macro in gc_priv.h
• Fix null dereference in check_finalizer_nested if redirect malloc on Linux
• Fix posix_memalign() to overwrite pointer storage only on success
• Fix skipped removal of page protection in case of address hash collision
• Fix typos in comments
• Fix undefined GC_real_pthread_sigmask if redirect malloc on OS X
• Fix update of last_back_trace_gc_no if KEEP_BACK_PTRS is not defined

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.6.20.tar.gz (see the Assets, md5: 0fffca82c939a5fea6b324a3ecc8b0f9)

7.4.26

Changes

• Eliminate 'unused parameter' gcc warning in free() if IGNORE_FREE
• Eliminate 'unused value' gcc warnings in init_global_static_roots (Symbian)
• Fix 'g++ not found' error on OpenBSD (Makefile.direct)
• Fix 'implicit declaration of function sbrk' gcc error on Symbian
• Fix 'implicit declaration of iscntrl()' warning in cord/de_win (MinGW)
• Fix 'info' buffer potential overrun in GC_save_callers
• Fix 'missing sysconf() prototype' gcc error in setjmp_t tool (OpenBSD)
• Fix 'unused GC_set_and_save_fault_handler' warning on OS X
• Fix GC_push_stack_for() to push also Xmm registers on Windows/x64
• Fix MACH_TYPE macro redefinition on Symbian/arm
• Fix SVR4 macro definition order
• Fix asm constraint in LONG_MULT for gcc/x86
• Fix assertion violation in GC_get_maps on Linux if malloc redirection
• Fix bitwise negation and rounding direction in setjmp_t tool
• Fix closing bracket placement for case statement in configure
• Fix indent of a closing curly brace in GC_forward_exception
• Fix missing GC_pthread_sigmask on FreeBSD and NetBSD
• Fix missing outermost parentheses in CORD_pos_cur_char_addr
• Fix missing redirect and implementation of pthread_sigmask() on OpenBSD
• Fix missing type widening before left shift in GC_MAKE_PROC
• Fix misspelled GC_HEADERS_H macro in gc_priv.h
• Fix null dereference in check_finalizer_nested if redirect malloc on Linux
• Fix posix_memalign() to overwrite pointer storage only on success
• Fix skipped removal of page protection in case of address hash collision
• Fix typos in comments
• Fix update of last_back_trace_gc_no if KEEP_BACK_PTRS is not defined

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.4.26.tar.gz (see the Assets, md5: 7d46a848ede1b5a23bd7603eac5e862c)

7.2r

Changes

• Fix 'g++ not found' error on OpenBSD (Makefile.direct)
• Fix 'implicit declaration of iscntrl()' warning in cord/de_win (MinGW)
• Fix 'info' buffer potential overrun in GC_save_callers
• Fix 'missing sysconf() prototype' gcc error in setjmp_t tool (OpenBSD)
• Fix SVR4 macro definition order
• Fix asm constraint in LONG_MULT for gcc/x86
• Fix assertion violation in GC_get_maps on Linux if malloc redirection
• Fix bitwise negation and rounding direction in setjmp_t tool
• Fix closing bracket placement for case statement in configure
• Fix indent of a closing curly brace in GC_forward_exception
• Fix missing outermost parentheses in CORD_pos_cur_char_addr
• Fix missing type widening before left shift in GC_MAKE_PROC
• Fix misspelled GC_HEADERS_H macro in gc_priv.h
• Fix null dereference in check_finalizer_nested if redirect malloc on Linux
• Fix posix_memalign() to overwrite pointer storage only on success
• Fix skipped removal of page protection in case of address hash collision
• Fix typos in comments
• Fix update of last_back_trace_gc_no if KEEP_BACK_PTRS is not defined

Build status

Travis CI build
AppVeyor CI build

Distribution tarball

gc-7.2r.tar.gz (see the Assets, includes a copy of libatomic_ops-7.2l, md5: aeaaa5b8a221ccca9416a392a4b3be70)