File: ChangeLog

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libgc 1:7.6.4-0.4
  • links: PTS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 4,956 kB
  • sloc: ansic: 35,613; sh: 4,193; cpp: 1,247; makefile: 163; asm: 99
file content (9307 lines) | stat: -rw-r--r-- 443,495 bytes parent folder | download
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== [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


== [7.4.10] 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)
* 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


== [7.4.2] 2014-06-03 ==

* 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


== [7.4.0] 2013-11-17 ==

* 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


== [7.3alpha2] 2012-05-11 ==

* 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


== [7.2j] 2018-01-21 ==

* Fix GC allocation mutex in child after a fork
* 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


== [7.2i] 2017-12-21 ==

* 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)


== [7.2h] 2017-10-12 ==

* 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 assertion violation in return_single_freelist in child process
* 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 lock in pthread_detach (Cygwin, winpthreads)
* 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_remove_specific invocation from remove_all_threads_but_me
* Fix GC_requested_heapsize increment in GC_init
* Fix GC_setspecific to prevent garbage collection inside
* 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 get_maps on proc maps file asynchronous growth
* Fix hb_n_marks underflow in clear_fl_marks if MARK_BIT_PER_OBJ
* Fix header filename in gcconfig.h comment
* Fix infinite mark_some calls after memory mapping disappeared (Glibc)
* 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 printf arguments type in print_callers
* Fix pthread_detach for threads not yet registered (Cygwin, winpthreads)
* Fix pthread_join to avoid thread removal on failure (Cygwin, winpthreads)
* Fix pthread_join when thread is registered in thread key destructor
* Fix push_complex_descriptor to avoid unlimited global mark stack growth
* Fix removal of dead threads in a child process
* Fix SIGSEGV in GC_is_marked when gc_cleanup is used in leak-finding mode
* Fix SIGSEGV in mark_from called from do_local_mark if WRAP_MARK_SOME
* 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 USE_CUSTOM_SPECIFIC mode (if manually enabled) for Win32
* Fix USE_GET_STACKBASE_FOR_MAIN definition in gcconfig.h
* 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


== [7.2g] 2016-05-23 ==

* 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


== [7.2f] 2014-06-03 ==

* 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


== [7.2e] 2013-11-10 ==

* 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)


== [7.2d] 2012-08-09 ==

* 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)


== [7.2c] 2012-06-11 ==

* 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


== [7.2b] 2012-05-23 ==

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


== [7.2] 2012-05-11 ==

* 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


== [7.2alpha6] 2011-06-14 ==

* configure_atomic_ops.sh: Remove.
* Makefile.direct (dist gc.tar): Remove configure_atomic_ops.sh.
* Makefile.am (EXTRA_DIST): Add autogen.sh.

* NT_STATIC_THREADS_MAKEFILE (.cpp.obj): Remove duplicate .cpp
filename passed.
* NT_X64_THREADS_MAKEFILE (.cpp.obj): Use lowercase file
extension.
* NT_X64_STATIC_THREADS_MAKEFILE (.cpp.obj): Likewise.
* NT_MAKEFILE (.cpp.obj): Likewise.

* alloc.c (GC_add_current_malloc_heap, GC_build_back_graph,
GC_traverse_back_graph): Move prototype to gc_priv.h.
* checksums.c (GC_page_was_ever_dirty): Likewise.
* dbg_mlc.c (GC_default_print_heap_obj_proc): Likewise.
* dyn_load.c (GC_parse_map_entry, GC_get_maps,
GC_segment_is_thread_stack, GC_roots_present, GC_is_heap_base,
GC_get_next_stack): Likewise.
* finalize.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested): Likewise.
* gcj_mlc.c (GC_start_debugging, GC_store_debug_info): Likewise.
* malloc.c (GC_extend_size_map, GC_text_mapping): Likewise.
* mark_rts.c (GC_mark_thread_local_free_lists): Likewise.
* misc.c (GC_register_main_static_data, GC_init_win32,
GC_setpagesize, GC_init_linux_data_start,
GC_set_and_save_fault_handler, GC_init_dyld, GC_init_netbsd_elf,
GC_initialize_offsets, GC_bl_init, GC_do_blocking_inner,
GC_bl_init_no_interiors): Likewise.
* os_dep.c (GC_greatest_stack_base_below, GC_push_all_stacks):
Likewise.
* reclaim.c (GC_check_leaked): Likewise.
* win32_threads.c (GC_gww_dirty_init): Likewise.
* darwin_stop_world.c (GC_is_mach_marker, GC_mprotect_stop,
GC_mprotect_resume): Move prototype to darwin_stop_world.h.
* pthread_support.c (GC_FindTopOfStack): Likewise.
* dyn_load.c (GC_cond_add_roots): Merge adjacent definitions.
* mark.c (GC_page_was_ever_dirty): Remove (as already declared).
* mark_rts.c (GC_roots_present): Change return type to void
pointer (to match the prototype); return NULL instead of FALSE.
* mark_rts.c (GC_add_roots_inner): Cast GC_roots_present() result.
* os_dep.c (NEED_PROC_MAPS): Move definition to gcconfig.h.
* os_dep.c (GC_write_fault_handler): Make STATIC.
* os_dep.c (GC_set_write_fault_handler): New function (only if
GC_WIN32_THREADS).
* pthread_start.c (GC_start_rtn_prepare_thread,
GC_thread_exit_proc): Move prototype to pthread_support.h.
* pthread_support.c (GC_nacl_initialize_gc_thread,
GC_nacl_shutdown_gc_thread, GC_unblock_gc_signals):
Likewise.
* pthread_support.c (GC_stop_init): Move prototype to
pthread_stop_world.h.
* win32_threads.c (GC_write_fault_handler): Remove prototype.
* win32_threads.c (GC_register_my_thread_inner): Call
GC_set_write_fault_handler instead of SetUnhandledExceptionFilter
(only if MPROTECT_VDB).
* doc/README.win32: Add information about DMC.
* include/private/gc_priv.h (GC_set_write_fault_handler): New
prototype (only if GC_WIN32_THREADS and MPROTECT_VDB).

* misc.c (vsnprintf): Redirect to vsprintf() if NO_VSNPRINTF.

* win32_threads.c (GC_unregister_my_thread): Use KNOWN_FINISHED()
instead of FINISHED macro.
* tests/test.c (check_heap_stats): Round up max_heap_sz value for
Win32 (same as for USE_MMAP).

* tests/test.c (check_heap_stats): Adjust printf format specifier
for max_heap_sz; cast max_heap_sz accordingly.

* doc/README.solaris2: Add note.

* configure.ac (SOLARIS25_PROC_VDB_BUG_FIXED): Don't define for
Solaris/x86 2.10+.

* tests/threadkey_test.c (SKIP_THREADKEY_TEST): Skip the test if
defined; explicitly define for some targets.

* mark.c (GC_dirty): Add prototype (only if MANUAL_VDB).
* stubborn.c (GC_dirty): Likewise.
* include/private/gcconfig.h (GWW_VDB, MPROTECT_VDB, PCR_VDB,
PROC_VDB): Undefine if MANUAL_VDB.
* include/private/gcconfig.h (DEFAULT_VDB): Don't define if
MANUAL_VDB.
* os_dep.c (async_set_pht_entry_from_index): Define for
MANUAL_VDB.
* os_dep.c (GC_read_dirty): Set GC_dirty_maintained only if
success; if ioctl() failed then just print warning instead of
aborting.

* include/private/gc_priv.h (GC_ASSERT): Use "%d" (instead of %ld)
for line number printing.

* os_dep.c (GC_read_dirty): Add debug logging if DEBUG_DIRTY_BITS
(for PROC_VDB only); print errors via GC_err_printf; rename "ps"
and "np" local variables to npages and pagesize, respectively;
remove "current_addr" local variable.

* os_dep.c (GC_get_main_stack_base): Convert to GC_get_stack_base
for BeOS and OS/2; define HAVE_GET_STACK_BASE.
* os_dep.c (GET_MAIN_STACKBASE_SPECIAL): Define when a specific
GC_get_main_stack_base implementation is defined.
* os_dep.c (GC_get_main_stack_base): Define that based on
GC_get_stack_base() in a single place (only if
GET_MAIN_STACKBASE_SPECIAL is unset); check GC_get_stack_base()
result.

* mark.c (GC_push_selected): Remove "push_fn" argument (use
GC_push_all directly); update the documentation.
* mark.c (GC_push_conditional): Simplify the code (for better
readability).

* mark.c (alloc_mark_stack): Use FALSE/TRUE (instead of 0/1) for
boolean local variables.
* doc/README.macros (GC_PREFER_MPROTECT_VDB): Update.
* os_dep.c (GC_page_was_dirty, GC_page_was_ever_dirty,
GC_remove_protection): Define for GWW_VDB and PROC_VDB in a single
place.
* os_dep.c (GC_page_was_dirty, GC_page_was_ever_dirty): Compute
PHT_HASH(h) only once (store result to a local variable).

* doc/README.solaris2: Update.

* include/private/gcconfig.h (end, InitStackBottom): Declare
extern variable for RTEMS.
* include/private/gcconfig.h (DATASTART, DATAEND, STACKBOTTOM):
Update (for RTEMS).
* include/private/gcconfig.h (DATAEND): Fix a typo in the macro
name (for RTEMS).
* tests/test.c (CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER):
Replace with CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER (for RTEMS).

* include/private/gcconfig.h (MPROTECT_VDB): Enable for Solaris in
single-threaded environment.

* include/private/gcconfig.h (MPROTECT_VDB): Undefine if PROC_VDB.
* tests/test.c (NUMBER_ROUND_UP): New macro.
* tests/test.c (check_heap_stats): Round up total expected heap
size to the nearest 4 MiB bound.
* tests/test.c (check_heap_stats): Print the current and expected
heap sizes in case of failure.

* checksums.c (GC_check_blocks, GC_check_dirty): Do log printing
only if GC_print_stats; print errors using GC_err_printf.
* checksums.c (GC_check_blocks): Join adjacent printf() calls into
a single one.

* pthread_support.c (pthread_join): Add assertion (check thread is
finished).
* pthread_support.c (GC_register_my_thread): Don't detach the
thread if invoked from the thread destructor.
* win32_threads.c (GC_register_my_thread): Likewise.
* win32_threads.c (GC_unregister_my_thread): Don't delete the
thread (just set FINISHED) if the thread is not detached (only if
GC_PTHREADS); add assertion (check the thread is not finished).
* tests/threadkey_test.c (main): Join some created threads.

* pthread_support.c (GC_delete_gc_thread): Rename "gc_id" local
variable to "t".
* win32_threads.c (GC_delete_gc_thread): Likewise.
* pthread_support.c (pthread_join, pthread_detach,
pthread_cancel): Rename "thread_gc_id" local variable to "t".
* win32_threads.c (GC_pthread_detach): Likewise.
* win32_threads.c (GC_delete_gc_thread): Remove "gc_nvid" local
variable.
* win32_threads.c (GC_pthread_join): Rename "joinee" local
variable to "t".

* pthread_stop_world.c (pthread_sigmask): Undefine even if not
DEBUG_THREADS.
* pthread_stop_world.c (GC_unblock_gc_signals): New function (only
if GC_EXPLICIT_SIGNALS_UNBLOCK).
* pthread_support.c (GC_unblock_gc_signals): New prototype.
* pthread_support.c (GC_register_my_thread_inner,
GC_register_my_thread): Call GC_unblock_gc_signals (only if
GC_EXPLICIT_SIGNALS_UNBLOCK); add comment.
* include/private/gcconfig.h (GC_EXPLICIT_SIGNALS_UNBLOCK): New
macro.

* pthread_stop_world.c (GC_suspend_handler_inner): Remove "dummy",
"sig" local variables; rename my_thread local variable to "self".

* tests/threadkey_test.c (LIMIT): Use smaller value (don't create
more than 30 in parallel by default).

* tests/threadkey_test.c (key_once, main): Work around for Solaris
PTHREAD_ONCE_INIT.
* tests/threadkey_test.c (LIMIT): Use smaller value for Solaris.

* dyn_load.c (GC_FirstDLOpenedLinkMap): Remove unused "r" local
variable.
* pthread_support.c (GC_unregister_my_thread_inner): Revert back
GC_remove_specific invocation; add a comment.
* include/private/thread_local_alloc.h (GC_remove_specific):
Revert back.
* specific.c (slow_getspecific): Cast qtid to AO_t.
* include/private/specific.h (key_create, setspecific,
remove_specific): Remove "extern" keyword.
* include/private/specific.h (getspecific): Change type of "qtid"
local variable to unsigned long.

* pthread_support.c (GC_check_tls): Fix "#endif" comment.
* include/gc.h (GC_REDIRECT_TO_LOCAL): Remove deprecated comment.
* include/private/thread_local_alloc.h (THREAD_LOCAL_ALLOC):
Remove redundant test of the macro.

* backgraph.c (add_edge): Recognize DEBUG_PRINT_BIG_N_EDGES macro.
* os_dep.c (GC_set_and_save_fault_handler): Recognize
SIGACTION_FLAGS_NODEFER_HACK macro.
* pthread_support.c (mark_mutex): Recognize GLIBC_2_1_MUTEX_HACK
macro.
* pthread_support.c (GC_acquire_mark_lock): Remove commented out
code.
* include/private/gc_priv.h (SUNOS5SIGS): Don't include
sys/siginfo.h on Linux.
* include/private/gcconfig.h (FORCE_WRITE_PREFETCH): New macro
recognized, force PREFETCH_FOR_WRITE to be defined on x86.
* include/private/gcconfig.h (USE_HPUX_FIXED_STACKBOTTOM): New
macro recognized (for HP/UX).

* os_dep.c (GC_gww_page_was_ever_dirty): Fix comment (for
GWW_VDB).
* os_dep.c (GC_dirty_init): Use memset() for GC_written_pages
resetting (for PROC_VDB).

* tests/threadkey_test.c: New file.
* tests/tests.am (TESTS, check_PROGRAMS): Add 'threadkey_test'.
* tests/tests.am (threadkey_test_SOURCES, threadkey_test_LDADD):
New variable.

* pthread_support.c (GC_unregister_my_thread_inner): Don't call
GC_remove_specific.
* include/private/thread_local_alloc.h (GC_remove_specific):
Remove (since it is empty for all targets).
* pthread_support.c (GC_record_stack_base): New inline function.
* win32_threads.c (GC_record_stack_base): Likewise.
* pthread_support.c (GC_register_my_thread_inner): Invoke
GC_record_stack_base.
* win32_threads.c (GC_register_my_thread_inner): Likewise.
* pthread_support.c (GC_register_my_thread): If thread is FINISHED
then call GC_record_stack_base, clear FINISHED, initialize
thread-local list and return success.
* win32_threads.c (GC_register_my_thread): Likewise.
* include/gc.h (GC_register_my_thread): Update documentation.
* include/private/thread_local_alloc.h (GC_thread_key): Likewise.

* thread_local_alloc.c (GC_malloc, GC_malloc_atomic): Join
adjacent "#ifdef".
* thread_local_alloc.c (GC_malloc_atomic): Call
GC_core_malloc_atomic (instead of GC_core_malloc).

* pthread_start.c (GC_start_rtn_prepare_thread): Change return
type to GC_thread.
* pthread_start.c (GC_inner_start_routine): Pass the current
thread descriptor to pthread_cleanup_push (same as in
win32_threads.c).
* pthread_stop_world.c (GC_push_all_stacks): Rename "me" local
variable to "self".
* win32_threads.c (GC_push_all_stacks): Likewise.
* pthread_stop_world.c (GC_suspend_all, GC_start_world): Rename
"my_thread" local variable to "self".
* pthread_support.c (GC_unregister_my_thread_inner): New static
function.
* pthread_support.c (GC_unregister_my_thread,
GC_thread_exit_proc): Use GC_unregister_my_thread_inner.
* win32_threads.c (GC_register_my_thread, GC_unregister_my_thread,
GC_do_blocking_inner): Rename "t" local variable to "thread_id".
* win32_threads.c (GC_wait_marker, GC_notify_all_marker): Rename
"id" local variable to "thread_id".

* pthread_support.c (GC_unregister_my_thread): Call pthread_self
only once.
* win32_threads.c (GC_pthread_start_inner): Likewise.
* pthread_support.c (GC_unregister_my_thread): Add debug output.
* win32_threads.c (GC_unregister_my_thread): Likewise.
* pthread_support.c (GC_register_my_thread,
GC_start_rtn_prepare_thread): Rename "my_pthread" local variable
to "self".

* include/gc.h (GC_HIDE_POINTER, GC_REVEAL_POINTER): Define
unconditionally (do not test GC_I_HIDE_POINTERS); update the
comment.
* include/gc.h (HIDE_POINTER, REVEAL_POINTER): Define as alias to
GC_HIDE/REVEAL_POINTER, respectively.
* include/private/gc_pmark.h (GC_I_HIDE_POINTERS): Do not define.
* include/private/gc_priv.h (GC_I_HIDE_POINTERS): Likewise.

* include/gc.h (GC_register_my_thread): Refine the comment.

* include/gc_inline.h (GC_MALLOC_WORDS, GC_CONS): Add missing
parentheses.
* include/gc_typed.h (GC_get_bit, GC_set_bit,
GC_CALLOC_EXPLICITLY_TYPED): Likewise.

* include/private/gcconfig.h (NO_GETCONTEXT): Add missing ')'.

* include/private/gcconfig.h (NO_GETCONTEXT): Do not use
getcontext(2) on m68k because it is not implemented there.

* alloc.c (GC_clear_a_few_frames): Use BZERO().
* mark_rts.c (GC_clear_roots, GC_rebuild_root_index): Likewise.
* reclaim.c (GC_start_reclaim): Likewise.
* blacklst.c (total_stack_black_listed): Remove "len" local
variable.
* dbg_mlc.c (GC_generate_random_valid_address): Replace "for"
statement with "do-while" one.
* dyn_load.c (GC_register_dynamic_libraries,
GC_register_dynlib_callback): Remove redundant parentheses.

* cord/cordxtra.c (CORD_from_file_lazy_inner): Suppress
"unused result" compiler warning for fread().

* os_dep.c (GC_write_fault_handler): Break when in_allocd_block
is set to true.

* dbg_mlc.c (GC_has_other_debug_info): Change return type to int;
return -1 if the object has (or had) debugging info but was
marked deallocated.
* include/private/dbg_mlc.h (GC_has_other_debug_info): Likewise.
* dbg_mlc.c (GC_has_other_debug_info): Update documentation;
remove "ohdr" local variable.
* dbg_mlc.c (GC_debug_free): Don't call GC_free if the object has
probably been deallocated.
* dbg_mlc.c (GC_debug_free): Don't actually free the object even
in the leak-finding mode if GC_findleak_delay_free.
* dbg_mlc.c (GC_check_leaked): New function (only unless
SHORT_DBG_HDRS).
* doc/README.environment (GC_FINDLEAK_DELAY_FREE): Document.
* doc/README.macros (GC_FINDLEAK_DELAY_FREE): Likewise.
* include/private/dbg_mlc.h (START_FLAG, END_FLAG): Use GC_WORD_C
on 64-bit architectures.
* include/private/dbg_mlc.h (NOT_MARKED): Remove redundant
parentheses.
* include/private/dbg_mlc.h (GC_HAS_DEBUG_INFO): Update (due to
GC_has_other_debug_info change).
* include/private/gc_priv.h (GC_findleak_delay_free): New global
variable declaration (unless SHORT_DBG_HDRS).
* misc.c (GC_findleak_delay_free): New global variable; recognize
GC_FINDLEAK_DELAY_FREE.
* misc.c (GC_init): Recognize GC_FINDLEAK_DELAY_FREE environment
variable (unless SHORT_DBG_HDRS).
* reclaim.c (GC_check_leaked): Declare (unless SHORT_DBG_HDRS).
* reclaim.c (GC_add_leaked): Don't add the object to leaked list
if marked as deallocated.

* dbg_mlc.c (GC_has_other_debug_info): Fix punctuation in the
comment.
* dbg_mlc.c (GC_FREED_MEM_MARKER): New macro.
* dbg_mlc.c (GC_debug_free): Use GC_FREED_MEM_MARKER.
* dbg_mlc.c (GC_smashed): Refine documentation.
* mark.c (GC_push_selected): Change dirty_fn return type to
GC_bool.
* os_dep.c (GC_page_was_ever_dirty): Make GC_INNER.
* reclaim.c (GC_reclaim_small_nonempty_block): Remove "kind"
local  variable.
* reclaim.c (GC_reclaim_block): Pass true constant to
GC_reclaim_small_nonempty_block (instead of report_if_found).
* doc/README.autoconf: Update; fix a typo.
* include/private/gcconfig.h (GC_WORD_C): New macro.

* dbg_mlc.c (GC_store_debug_info_inner): Cast "linenum".
* dbg_mlc.c (GC_check_annotated_obj): Fix punctuation in the
comment.
* dbg_mlc.c (GC_print_smashed_obj): Add (and print) "msg"
argument.
* dbg_mlc.c (GC_debug_free, GC_print_all_smashed_proc): Pass
message to GC_print_smashed_obj.
* dbg_mlc.c (GC_debug_free): Call GC_size once.
* dbg_mlc.c (GC_debug_realloc): Calculate old_sz only if
allocation succeeded; remove unnecessary check for object is
smashed (since this is done in GC_debug_free); remove "clobbered"
local variable.

* dbg_mlc.c (GC_store_debug_info_inner, GC_store_debug_info):
Rename "integer" argument to "linenum"; change the type of the
argument to int.
* gcj_mlc.c (GC_store_debug_info): Likewise.
* dbg_mlc.c (GET_OH_LINENUM): New macro.
* dbg_mlc.c (GC_print_obj, GC_print_smashed_obj): Use
GET_OH_LINENUM; adjust print format specifier.
* dbg_mlc.c (GC_debug_malloc, GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page,
GC_debug_generic_malloc_inner,
GC_debug_generic_malloc_inner_ignore_off_page,
GC_debug_malloc_stubborn, GC_debug_malloc_atomic,
GC_debug_malloc_uncollectable,
GC_debug_malloc_atomic_uncollectable): Remove unnecessary cast of
"i".
* gcj_mlc.c (GC_debug_gcj_malloc): Likewise.

* os_dep.c (GC_linux_stack_base): Rename to
GC_linux_main_stack_base.
* os_dep.c (GC_freebsd_stack_base): Rename to
GC_freebsd_main_stack_base; adjust error message.
* pthread_stop_world.c (GC_stop_init): Use GC_SEM_INIT_PSHARED
as an argument for sem_init().
* pthread_support.c (pthread_create): Likewise.
* pthread_support.c (pthread_create): Abort in case sem_init()
fails.
* include/private/gc_priv.h (GC_SEM_INIT_PSHARED): Define.
* tests/initsecondarythread.c: Include gcconfig.h; call GC_INIT
from main() if it should be done from the primordial thread only.

* alloc.c: Don't include sys/types.h for ArmCC.
* dyn_load.c: Likewise.
* os_dep.c: Likewise.
* mach_dep.c (_setjmp, _longjmp): Redirect to setjmp/longjmp for
ArmCC.
* mark.c (GC_noop): Define specially for ArmCC.
* include/private/gc_priv.h (GC_noop): Likewise.
* misc.c (GC_init): Don't test pointers comparison for ArmCC.
* misc.c: Don't include unistd.h for ArmCC.
* os_dep.c (pages_executable): Rename to GC_pages_executable;
make STATIC.
* os_dep.c (GC_unix_mmap_get_mem): Don't define for ArmCC.
* ptr_chck.c (GC_is_visible): Explicitly cast
(GC_DS_PER_OBJECT-GC_INDIR_PER_OBJ_BIAS) to word (to suppress
a compiler warning).
* include/private/gcconfig.h: Recognize __arm.
* include/private/gcconfig.h (HBLKPTR): Define for ArmCC.
* include/private/gcconfig.h (HBLKPTR): Add parentheses for
"bytes" argument.

* pthread_support.c (GC_get_nprocs): Don't define for Android.
* pthread_support.c (GC_dummy_thread_local): Don't test
GC_LINUX_THREADS.
* include/gc_config_macros.h (GC_ADD_CALLER, GC_RETURN_ADDR):
Define for Android.

* mach_dep.c (NO_GETCONTEXT): Move to gcconfig.h.
* os_dep.c (GC_write_fault_handler): Don't include ucontext.h if
NO_GETCONTEXT.
* include/private/gcconfig.h (GETPAGESIZE): Define as a sysconf
call for Android.

* include/private/gc_locks.h (WIN32_LEAN_AND_MEAN, NOSERVICE):
Define before including windows.h.
* include/private/gc_priv.h (WIN32_LEAN_AND_MEAN, NOSERVICE):
Likewise.
* include/private/thread_local_alloc.h (WIN32_LEAN_AND_MEAN,
NOSERVICE): Likewise.
* include/private/gc_priv.h (MS_TIME_DIFF): Avoid floating-point
arithmetics; add a comment.

* mark.c (GC_clear_hdr_marks): Don't test USE_MARK_BYTES.
* extra/setjmp_t.c (main): Don't test USE_MARK_BITS.
* include/private/gc_pmark.h (SET_MARK_BIT_EXIT_IF_SET): Likewise.
* include/private/gc_pmark.h (SET_MARK_BIT_EXIT_IF_SET): Remove
"mark_byte" local variable.
* include/private/gc_pmark.h (OR_WORD_EXIT_IF_SET): Add a comment
about that AO_or() is not used by GC unless USE_MARK_BITS
explicitly set.
* include/private/gc_priv.h (OR_WORD): Likewise.
* include/private/gc_pmark.h (INCR_MARKS): Remove trailing ';',
add parentheses.
* include/private/gc_priv.h (ONES): Define before use by
MAKE_COOLER.
* include/private/gc_priv.h (MARK_BITS_SZ): Define where used.
* include/private/gc_priv.h (OR_WORD): Don't define if
USE_MARK_BYTES.
* include/private/gcconfig.h (USE_MARK_BYTES); Remove duplicate
definition; simplify expression.

* os_dep.c (GC_get_maps): Always close the file.
* pthread_support.c (GC_get_nprocs): Likewise.
* os_dep.c (READ): Define similarly across the file (without
parameters).
* pthread_support.c (GC_get_nprocs): Use signed int type for "i"
and "len" local variables (since read() may return -1).
* include/private/gc_pmark.h (LONG_MULT): Add prefix/suffix
double underscore; add "volatile" for asm.
* include/private/gc_pmark.h (LONG_MULT): Add missing
parentheses.
* include/private/gc_priv.h (OR_WORD): Likewise.
* include/private/gc_priv.h (OR_WORD): Remove unnecessary brackets
and ';' symbol.

* os_dep.c (GC_get_stack_base): Implement for Android (same as
for Linux).
* pthread_support.c (GC_get_nprocs): Return 1 (instead of -1) if
failed to open "stat" file (not to issue a warning twice); update
the comment.
* pthread_support.c (GC_thr_init): Call sysconf() on Android to
get the number of CPUs.

* include/private/gc_priv.h (_GNU_SOURCE): Revert one of the
recent patches regarding this macro as the macro should be set
(to 1) before including any other system header.

* doc/README.environment (GC_INITIAL_HEAP_SIZE,
GC_MAXIMUM_HEAP_SIZE): Update.

* misc.c (GC_parse_mem_size_arg): Allow 'k', 'M', 'G' suffixes in
heap size specifier; return 0 if not a valid one.
* include/gc_cpp.h: Explicitly define inline one-argument delete
operator for Cygwin (as a workaround).
* tests/test_cpp.cc (main): Suppress compiler warnings about
"assigned value is unused".

* misc.c (GC_parse_mem_size_arg): New function.
* misc.c (GC_init): Use GC_parse_mem_size_arg().
* pthread_stop_world.c (tkill): Declare for Android.

* include/private/gc_priv.h (_GNU_SOURCE): Include features.h
first (except for NaCl) and then define the macro to 1 if not yet.

* tests/tests.am (TESTS, check_PROGRAMS): Add
'initsecondarythread'.
* tests/tests.am (initsecondarythread_SOURCES,
initsecondarythread_LDADD): New variable.

* dbg_mlc.c (GC_store_debug_info_inner): Always define; add
"const" to its string argument.
* dbg_mlc.c (GC_store_debug_info): Call GC_store_debug_info_inner.
* dbg_mlc.c (GC_debug_free): Set GC_have_errors in case of
smashed or previously deallocated found.
* dbg_mlc.c (GC_check_heap_block): Replace while loop with a for
one.
* reclaim.c (GC_reclaim_check): Likewise.
* dbg_mlc.c (GC_check_heap_proc): Remove redundant cast to word.
* os_dep.c (GC_get_stack_base): Don't initialize
stackbase_main_self/ss_sp on Solaris if thr_main() is zero (thus
calling GC_INIT() from a non-primordial thread is possible now).
* reclaim.c (GC_add_leaked): Turn into an inline one.
* reclaim.c (GC_reclaim_small_nonempty_block):
Change report_if_found type from int/word to boolean.
* include/private/gc_priv.h (GC_start_reclaim): Likewise.
* include/private/gc_priv.h (set_mark_bit_from_hdr,
clear_mark_bit_from_hdr): Place closing parenthesis properly.

* os_dep.c (GC_get_main_stack_base): Try to use
pthread_attr_getstack first for Linux if THREADS.
* doc/README.macros (USE_GET_STACKBASE_FOR_MAIN): Adjust text
alignment.

* dbg_mlc.c (GC_generate_random_backtrace_no_gc): Fix a message
typo.
* dbg_mlc.c (GC_debug_malloc): Add a comment (about zero size).
* dbg_mlc.c (GC_strdup): Call GC_err_printf instead of WARN (in
case of NULL argument).
* dbg_mlc.c (GC_free): In case of NULL argument, just return
(without any warning printed); eliminate "uncollectable" local
variable.

* configure.ac (THREADDLLIBS): Use alternate thread library on
Solaris 8.
* configure.ac (need_atomic_ops_asm): Set to true only for SPARC
Solaris.
* configure.ac: Don't use libdl on mips-sgi-irix6.

* mach_dep.c (NO_GETCONTEXT); Define for RTEMS.
* mach_dep.c (GC_with_callee_saves_pushed): Don't call
__builtin_unwind_init() for RTEMS; use setjmp() without the
leading underscore (for RTEMS).
* tests/test.c (BIG): Use smaller value for RTEMS.
* tests/test.c (main): Customize for RTEMS.

* configure.host: Remove doubled words in comments.
* os_dep.c: Likewise.
* doc/README: Likewise.
* extra/setjmp_t.c: Likewise.
* tests/huge_test.c: Likewise.
* extra/setjmp_t.c (getpagesize, nested_sp, main, g): Replace the
K&R-style function definition with the ANSI C one.
* extra/setjmp_t.c (nested_sp): Implement in the same way as
GC_approx_sp.

* dyn_load.c (GC_dyld_sections): Add more sctions.
* dyn_load.c (GC_dyld_add_sect_fmts): New static varaible.
* dyn_load.c (L2_MAX_OFILE_ALIGNMENT): New macro.
* dyn_load.c (GC_dyld_image_add, GC_dyld_image_remove): Improve
logging; add support for on-demand sections.

* gcj_mlc.c (GC_gcj_malloc_initialized): Use STATIC unless
GC_ASSERTIONS.
* include/private/gc_priv.h (GC_gcj_malloc_initialized): Don't
declare (as external) unless GC_ASSERTIONS.
* os_dep.c (GC_win32_free_heap): Clear GC_heap_bases[] also for
Cygwin; add FIXME.
* include/private/gcconfig.h: Include <sys/unistd.h> for RTEMS.
* include/private/gcconfig.h: Add "#error" for every "-->" mark.
* include/private/gcconfig.h (CLEAR_DOUBLE): Turn the code into
an expression.
* include/private/pthread_support.h (SUSPENDED_EXT): Add new flag
(which existed previously as SUSPENDED and still exists in GCJ).
* include/private/pthread_support.h (DISABLED_GC): Change the
value (as it is already used by SUSPENDED_EXT).

* tests/test.c (reverse_test):  Modify count (BIG) for
ppc64-darwin.

* reclaim.c (GC_print_all_errors): Recognize new GC_ABORT_ON_LEAK
macro and environment variable; abort if any error has been
printed provided the environment variable (or macro) is set.
* doc/README.environment (GC_ABORT_ON_LEAK): Document.
* doc/README.macros (GC_ABORT_ON_LEAK): Likewise.

* os_dep.c (GC_unix_sbrk_get_mem, GC_unix_get_mem): Don't define
for RTEMS.
* include/private/gcconfig.h (RTEMS): Add support for.
* include/private/gcconfig.h (GET_MEM): Use calloc() for RTEMS.

* mallocx.c (GC_malloc_uncollectable): Move to malloc.c (since
it is used internally in some places).

* dbg_mlc.c (GC_register_finalizer_no_order): Remove redundant
declaration.
* dbg_mlc.c (GC_debug_malloc_replacement,
GC_debug_realloc_replacement): Rename RA to GC_DBG_RA.
* malloc.c (GC_debug_malloc_replacement): Likewise.
* mallocx.c (GC_debug_realloc_replacement): Likewise.
* dbg_mlc.c (GC_store_debug_info): Move proto from dbg_mlc.h.
* malloc.c (GC_strdup, GC_strndup, GC_wcsdup): Move to mallocx.c.
* malloc.c: Include errno.h only REDIRECT_MALLOC; remove redundant
includes of string.h.
* mallocx.c: Include string.h (for GC_strdup).
* include/private/dbg_mlc.h (GC_store_debug_info): Move declaration
to dbg_mlc.c.
* include/private/gc_locks.h (UNCOND_LOCK, UNCOND_UNLOCK): Remove
redundant trailing ';'.
* include/private/gc_priv.h (START_WORLD, COND_DUMP): Likewise.
* include/private/gc_locks.h (LOCK, UNLOCK): Place opening '{'
properly.
* include/private/gc_priv.h (GC_DBG_RA): Move from dbg_mlc.c,
malloc.c, mallocx.c.

* alloc.c (GC_check_heap, GC_print_all_smashed): Move the
definition from misc.c.
* dbg_mlc.c (GC_debug_malloc_atomic_uncollectable): Define as
public.
* include/gc.h (GC_debug_malloc_atomic_uncollectable): Declare.
* include/gc.h (GC_MALLOC_ATOMIC_UNCOLLECTABLE): Define new public
macro.
* dbg_mlc.c (MAX_SMASHED): Don't define if already set.
* reclaim.c (MAX_LEAKED): Likewise.
* dbg_mlc.c (GC_add_smashed): Add FIXME about the concurrent
access to the global array.
* reclaim.c (GC_add_leaked): Likewise.
* misc.c (GC_print_back_height): Set on if GC_PRINT_BACK_HEIGHT
(new macro) is defined.
* doc/README.macros (GC_PRINT_BACK_HEIGHT): Document.
* misc.c (GC_dump_regularly, GC_init): Replace 0/1 for
GC_dump_regularly and GC_print_back_height variables with
FALSE/TRUE.
* reclaim.c (GC_print_all_errors): Refine the comment.

* tests/test.c (reverse_test_inner): Undo one of the previous
patches which shifts "c" and "d" pointers only if
ALL_INTERIOR_POINTERS (since interior pointers are always
recognized in stacks).

* misc.c (GC_stdout, GC_stderr): Move the definition to the place
where GC_log is defined (Unix only).
* misc.c (GC_init): Recognize "GC_ONLY_LOG_TO_FILE" environment
variable and the similar macro; redirect GC_stdout and GC_stderr
to GC_log if "GC_LOG_FILE" environment variable is set unless
prohibited by GC_ONLY_LOG_TO_FILE (Unix only).
* doc/README.environment (GC_ONLY_LOG_TO_FILE): Document.
* doc/README.macros (GC_ONLY_LOG_TO_FILE): Likewise.

* misc.c (GC_stdout, GC_write): Rename GC_stdout to GC_log (Win32
only).
* misc.c (GC_write): Add for MacOS (and OS/2); change WRITE()
accordingly.
* misc.c (GC_printf): Check GC_quiet before va_start().

* allchblk.c (GC_freehblk): Use GC_log_printf instead of GC_printf
inside "if (GC_print_stats)" branch.
* alloc.c (GC_collect_or_expand): Likewise.
* dyn_load.c (GC_register_dynamic_libraries): Likewise.
* headers.c (GC_scratch_alloc): Likewise.
* os_dep.c (GC_get_maps, GC_remap, PROTECT,
GC_write_fault_handler, GC_dirty_init, GC_mprotect_thread): Likewise.
* alloc.c (min_bytes_allocd): Use GC_log_printf instead of
GC_printf for DEBUG_THREADS output.
* darwin_stop_world.c (GC_stack_range_for, GC_suspend_thread_list,
GC_stop_world, GC_thread_resume, GC_start_world): Likewise.
* pthread_start.c (GC_inner_start_routine): Likewise.
* pthread_stop_world.c (GC_suspend_handler, GC_restart_handler,
GC_push_all_stacks, GC_suspend_all, GC_stop_world,
GC_start_world): Likewise.
* pthread_support.c (GC_mark_thread, GC_get_nprocs,
GC_start_rtn_prepare_thread, pthread_create): Likewise.
* checksums.c (GC_update_check_page): Use GC_printf() instead of
GC_err_printf() for error printing.
* checksums.c (GC_check_blocks, GC_check_dirty): Use GC_log_printf
instead of GC_printf for logging purposes.
* dyn_load.c (sys_errlist, sys_nerr, errno): Move declaration of
external variable outside from GC_register_dynamic_libraries.
* dyn_load.c (GC_register_dynamic_libraries): Don't use
sys_errlist value if errno equals to sys_nerr.
* dyn_load.c (GC_register_dynamic_libraries): Use GC_log_printf
instead of GC_printf for DL_VERBOSE output.
* dyn_load.c (GC_dyld_image_add, GC_dyld_image_remove,
GC_init_dyld): Use GC_log_printf instead of GC_printf for
DARWIN_DEBUG output.
* os_dep.c (catch_exception_raise): Use GC_log_printf
instead of GC_printf for DEBUG_EXCEPTION_HANDLING output.
* reclaim.c (GC_print_free_list): Move "n" increment out of
GC_printf() call.

* win32_threads.c (DEBUG_CYGWIN_THREADS, DEBUG_WIN32_PTHREADS,
DEBUG_WIN32_THREADS): Remove.
* win32_threads.c (GC_register_my_thread_inner,
GC_win32_start_inner): Use GC_log_printf instead of GC_printf
inside "if (GC_print_stats)" branch.
* win32_threads.c (GC_PTHREAD_PTRVAL): New macro (defined only if
GC_PTHREADS).
* win32_threads.c (GC_delete_gc_thread, NUMERIC_THREAD_ID,
GC_pthread_join, GC_pthread_create): Use GC_PTHREAD_PTRVAL
macro.
* win32_threads.c (GC_push_stack_for, GC_mark_thread,
GC_CreateThread, GC_beginthreadex, GC_pthread_join,
GC_pthread_create, GC_pthread_start_inner, GC_thread_exit_proc,
GC_mark_thread_local_free_lists): Use GC_log_printf instead of
GC_printf for DEBUG_THREADS output.
* win32_threads.c (GC_win32_start_inner, GC_CreateThread,
GC_beginthreadex, GC_pthread_join, GC_pthread_create,
GC_pthread_start_inner, GC_thread_exit_proc): Cast
GetCurrentThreadId result to long; don't cast value of pthread_t
type to int; adjust printf format specifiers.
* doc/README.win32 (DEBUG_WIN32_PTHREADS): Remove obsolete
information.

* tests/test.c (cons, small_cons, gcj_cons, check_ints,
check_uncollectable_ints, print_int_list, check_marks_int_list,
fork_a_thread, finalizer, mktree, chktree, alloc8bytes,
alloc_small, tree_test, typed_test, check_heap_stats, WinMain,
test, main): Remove unnecessary casts of GC_printf calls to void.

* allchblk.c (GC_print_hblkfreelist): Adjust (make uniform across
BDWGC) printed message (adjust letters case, terminating dot and
new line symbols).
* alloc.c (GC_check_fl_marks): Likewise.
* backgraph.c (new_back_edges): Likewise.
* checksums.c (GC_check_dirty): Likewise.
* darwin_stop_world.c (GC_push_all_stacks,
GC_suspend_thread_list): Likewise.
* dbg_mlc.c (GC_print_type, GC_debug_free, GC_debug_realloc,
store_old): Likewise.
* dyn_load.c (GC_register_dynamic_libraries): Likewise.
* mark.c (GC_initiate_gc, GC_mark_some, GC_mark_from, GC_push_all,
GC_push_selected, GC_push_next_marked_dirty): Likewise.
* mark_rts.c (GC_exclude_static_roots_inner): Likewise.
* os_dep.c (GC_remap, GC_default_push_other_roots,
GC_push_thread_structures, GC_dirty_init, GC_read_dirty,
catch_exception_raise_state, catch_exception_raise_state_identity,
GC_mprotect_thread_notify, GC_mprotect_thread,
catch_exception_raise): Likewise.
* pthread_stop_world.c (GC_print_sig_mask, GC_push_all_stacks,
GC_stop_world, GC_stop_init): Likewise.
* pthread_support.c (GC_thr_init, GC_register_my_thread_inner,
GC_start_routine): Likewise.
* win32_threads.c (GC_register_my_thread_inner,
GC_push_all_stacks, GC_win32_start_inner, GC_pthread_join,
GC_pthread_start_inner): Likewise.
* alloc.c (GC_expand_hp_inner): Realign the code.
* mark.c (GC_mark_from, GC_mark_local, GC_do_parallel_mark):
Likewise.
* misc.c (GC_init): Likewise.
* os_dep.c (GC_dirty_init, GC_read_dirty): Likewise.
* include/private/gc_pmark.h (PUSH_CONTENTS_HDR): Likewise.
* tests/test.c (run_one_test): Likewise.
* misc.c (GC_err_puts): Document.
* misc.c (GC_err_write): Remove.
* os_dep.c (dump_maps): Likewise.
* include/private/gc_priv.h (GC_err_write): Likewise.
* os_dep.c (GC_print_address_map): Call GC_err_puts() instead of
dump_maps() and GC_err_write().
* os_dep.c (GC_read_dirty): Remove redundant brackets.

* tests/test.c (reverse_test_inner): Test interior pointer
recognition only if ALL_INTERIOR_POINTERS.
* tests/test.c (run_one_test): Replace GC_all_interior_pointers
with GC_get_all_interior_pointers(); simplify the expression.
* tests/test.c (check_heap_stats): Replace GC_bytes_allocd and
GC_bytes_allocd_before_gc with GC_get_total_bytes().
* tests/test.c (main): Replace GC_gc_no with GC_get_gc_no().

* dbg_mlc.c (GC_debug_strdup, GC_debug_free): Output a portability
warning if the argument is NULL and GC is in leaks detection mode.
* dbg_mlc.c (GC_debug_strndup, GC_debug_wcsdup): New public
function definition.
* malloc.c (GC_strndup, GC_wcsdup, strndup): Likewise.
* mallocx.c (GC_posix_memalign): Likewise.
* malloc.c (strdup): Fix string size value; rename "len" to "lb".
* mallocx.c: Include errno.h unless WinCE (otherwise include
windows.h for Win32 error constants).
* win32_threads.c: Define WIN32_LEAN_AND_MEAN and NOSERVICE before
windows.h inclusion.
* misc.c (GC_init): Register at-exit callback if GC_find_leak
(even if GC_FIND_LEAK macro is unset).
* pthread_stop_world.c (NACL_STORE_REGS,
__nacl_suspend_thread_if_needed, GC_nacl_initialize_gc_thread):
Use BCOPY() instead of memcpy().
* pthread_support.c (GC_init_real_syms): Likewise.
* doc/README.macros (GC_DEBUG_REPLACEMENT, GC_REQUIRE_WCSDUP):
Document new macro.
* doc/README.macros (REDIRECT_MALLOC): Update documentation.
* include/gc.h (GC_strndup, GC_posix_memalign, GC_debug_strndup):
New API function prototype.
* include/gc.h (GC_MALLOC, GC_REALLOC): Redirect to
GC_debug_malloc/realloc_replacement() if GC_DEBUG_REPLACEMENT.
* include/gc.h (GC_STRDUP): Remove redundant parentheses.
* include/leak_detector.h (realloc, strdup): Likewise.
* include/gc.h (GC_STRNDUP): New API macro.
* include/gc.h (GC_NEW, GC_NEW_ATOMIC, GC_NEW_STUBBORN,
GC_NEW_UNCOLLECTABLE): Add missing parentheses.
* include/gc.h (GC_wcsdup, GC_debug_wcsdup): New API function
prototype (only if GC_REQUIRE_WCSDUP).
* include/gc.h (GC_WCSDUP): New API macro (only if
GC_REQUIRE_WCSDUP).
* include/leak_detector.h: Include stdlib.h and string.h after gc.h (unless
GC_DONT_INCLUDE_STDLIB).
* include/leak_detector.h (malloc, calloc, free, realloc):
Undefine symbol before its redefinition.
* include/leak_detector.h (strndup, memalign, posix_memalign):
Redefine to the corresponding GC function.
* include/leak_detector.h (wcsdup): Redefine to GC_WCSDUP (only
if GC_REQUIRE_WCSDUP).
* include/leak_detector.h (CHECK_LEAKS): Add comment; don't define
the macro if already defined.

* misc.c (GC_abort): Use _exit() (instead of DebugBreak) on Win32
when doing code static analysis (to inform the tool that the
function is a no-return one).
* os_dep.c (GC_linux_stack_base): Remove a duplicate validation
of the length of "stat" file; use signed int type for "i",
"buf_offset" and "len" local variables (since read() may
return -1).

* blacklst.c (GC_bl_init_no_interiors): New function (the code
moved from GC_bl_init).
* blacklst.c (GC_bl_init): Invoke GC_bl_init_no_interiors unless
GC_all_interior_pointers mode; remove unnecessarily parameter cast
for GC_scratch_alloc call.
* include/private/gc_priv.h (GC_bl_init): Move the function
declaration to misc.c file.
* misc.c (GC_bl_init_no_interiors): Add a prototype.
* misc.c (GC_set_all_interior_pointers): Allow values other than 0
and 1; allow altering GC_set_all_interior_pointers value even
after GC initialization.
* obj_map.c (GC_initialize_offsets): Clear GC_valid_offsets and
GC_modws_valid_offsets if GC_all_interior_pointers is off.
* misc.c (GC_init): Don't call GC_initialize_offsets() unless
GC_all_interior_pointers mode.

* alloc.c (GC_finish_collection): Remove redundant brackets;
adjust code indentation.
* blacklst.c (GC_add_to_black_list_normal): Simplify expression
(to improve code readability).
* blacklst.c (GC_is_black_listed): Join nested "if" (into a single
conditional expression); initialize "nblocks" just before the loop
beginning.
* misc.c (GC_init): Don't compute initial_heap_sz if GC is already
initialized.
* include/private/gc_priv.h (GC_initialize_offsets): Move the
function declaration to misc.c file.
* obj_map.c (GC_initialize_offsets): Remove offsets_initialized
static variable since the function is called only once.
* tests/middle.c (main): Use setter for GC_all_interior_pointers;
adjust printf format specifier (and cast the value passed to).

* doc/README.macros (SMALL_CONFIG, LARGE_CONFIG): Refine the
documentation.
* include/private/gc_hdrs.h (LOG_BOTTOM_SZ): Ignore SMALL_CONFIG
if LARGE_CONFIG is defined.
* include/private/gc_priv.h (CPP_LOG_HBLKSIZE): Likewise.

* alloc.c (GC_finish_collection): Replace "#else #ifdef" with
"#elif".
* include/private/gc_priv.h (CPP_LOG_HBLKSIZE, LOG_PHT_ENTRIES,
MAX_ROOT_SETS, MAX_HEAP_SECTS): Likewise.
* alloc.c (GC_expand_hp_inner): Check for GC_collect_at_heapsize
overflow even if not LARGE_CONFIG.
* dbg_mlc.c (GC_check_heap_proc): Check "oh" size even if
SMALL_CONFIG.
* finalize.c (GC_print_finalization_stats): Fix "#endif" comment.
* doc/README.environment (GC_LOG_FILE, GC_PRINT_VERBOSE_STATS,
GC_FULL_FREQUENCY): Refine the documentation.

* extra/msvc_dbg.c: Test _MSC_VER macro; include "gc.h" (for
GC_word).
* extra/msvc_dbg.c (ULONG_PTR): Replace with GC_ULONG_PTR; define
as word.

* dbg_mlc.c (GC_get_back_ptr_info, GC_print_obj,
GC_print_smashed_obj, GC_debug_free_inner): Add a code for a
LINT-like tool to instruct it that the function is invoked only
with valid parameters (otherwise a SEGV is ok); recognize LINT2
new macro.
* misc.c (GC_abort): Instruct a LINT-like tool that the function
never returns in fact.
* os_dep.c (GC_linux_stack_base): Check for read buffer overflow;
close the file immediately after read; use STRTOULL() instead of
decoding the address number manually.
* include/private/gc_priv.h (EXPECT): Don't specify outcome for a
LINT-like tool.
* include/private/gc_priv.h (GC_all_interior_pointers): Instruct a
LINT-like tool that the value is restricted to zero and one only
(required since the variable is global and its value is used as a
part of array index expression is some places).

* dbg_mlc.c (GC_make_closure): Fix SEGV in case GC_malloc returns
NULL.
* dbg_mlc.c (GC_debug_register_finalizer,
GC_debug_register_finalizer_no_order,
GC_debug_register_finalizer_unreachable,
GC_debug_register_finalizer_ignore_self): Handle out of memory
case properly (similar to GC_register_finalizer_inner).
* headers.c (GC_install_header): Handle the case when alloc_hdr()
returns NULL.
* os_dep.c (GC_get_maps_len): Defend against missing "maps" file.
* pthread_support.c (GC_mark_thread): Place a dummy return
statement (which uses "id" argument) before the actual use of "id"
as an array index (to suppress a warning produced by some static
code analysis tools).
* win32_threads.c (GC_mark_thread): Likewise.
* pthread_support.c (GC_thr_init): Abort (with the appropriate
message) if out of memory.

* finalize.c (GC_register_finalizer_inner): Fix a typo in a
comment.
*include/private/gcconfig.h (STACKBOTTOM): Likewise.
* gcj_mlc.c (GC_core_gcj_malloc): Replace 0/1 with TRUE/FALSE in
EXPECT (the 2nd argument).
* malloc.c (GC_core_malloc_atomic, GC_core_malloc, GC_free):
Likewise.
* mark.c (GC_mark_and_push, GC_mark_and_push_stack): Likewise.
* thread_local_alloc.c (GC_malloc, GC_malloc_atomic): Likewise.
* include/private/gc_hdrs.h (HC_GET_HDR): Likewise.
* include/private/gc_priv.h (SMALL_OBJ): Likewise.
* include/private/specific.h (getspecific): Likewise.
* pthread_support.c (LOCK_STATS): Add a comment.

* include/gc_pthread_redirects.h (GC_NO_DLOPEN,
GC_NO_PTHREAD_SIGMASK, GC_PTHREAD_CREATE_CONST,
GC_PTHREAD_EXIT_ATTRIBUTE, GC_NO_PTHREAD_CANCEL): Move the
definition to gc_config_macros.

* pthread_support.c (pthread_cancel, GC_pthread_cancel_t,
GC_pthread_cancel): Test GC_NO_PTHREAD_CANCEL (instead of NACL and
GC_PTHREAD_EXIT_ATTRIBUTE).
* include/gc_pthread_redirects.h (GC_pthread_cancel,
pthread_cancel): Likewise.
* pthread_support.c (GC_pthread_create, GC_pthread_sigmask,
GC_pthread_join, GC_pthread_detach, GC_pthread_cancel): Realign
code.
* include/gc_pthread_redirects.h (GC_PTHREAD_EXIT_ATTRIBUTE):
Define as empty for NaCl.
* include/gc_pthread_redirects.h (GC_NO_PTHREAD_CANCEL): New macro
defined.

* dyn_load.c (GC_init_dyld): Do not invoke
_dyld_bind_fully_image_containing_address() if GC_no_dls (as it is
not required to register the main data segment in that case).
* include/gc.h (GC_no_dls): Adjust the comment.

* dyn_load.c (GC_MUST_RESTORE_REDEFINED_DLOPEN): Test
GC_NO_DLOPEN.
* gc_dlopen.c: Likewise.
* include/gc_pthread_redirects.h (GC_dlopen, dlopen): Likewise.
* gc_dlopen.c: Don't include dlfcn.h (as it is included in
gc_pthread_redirects.h).
* pthread_support.c (pthread_sigmask, GC_pthread_sigmask_t,
GC_pthread_sigmask): Test GC_NO_PTHREAD_SIGMASK (instead of
GC_DARWIN_THREADS, GC_OPENBSD_THREADS and NACL).
* include/gc_pthread_redirects.h (GC_pthread_sigmask,
pthread_sigmask): Likewise.
* win32_threads.c (pthread_sigmask, GC_pthread_sigmask): Test
GC_NO_PTHREAD_SIGMASK (instead of GC_WIN32_PTHREADS).
* pthread_support.c (pthread_create, GC_pthread_create_t,
GC_pthread_create): Rename GC_PTHREAD_CONST to
GC_PTHREAD_CREATE_CONST.
* win32_threads.c (GC_pthread_create): Likewise.
* include/gc_pthread_redirects.h: Likewise.
* include/gc_pthread_redirects.h (GC_NO_DLOPEN,
GC_NO_PTHREAD_SIGMASK): New macro defined.
* include/gc_pthread_redirects.h (GC_PTHREAD_CREATE_CONST): Set to
empty for NaCl.
* include/gc_pthread_redirects.h (GC_PTHREAD_EXIT_ATTRIBUTE): Do
not define for Android (as CANCEL_SAFE is not defined).

* include/gc.h (GC_ADD_CALLER, GC_RETURN_ADDR,
GC_HAVE_BUILTIN_BACKTRACE, GC_CAN_SAVE_CALL_STACKS): Move
definition to gc_config_macros.h file.
* include/gc_config_macros.h: Check the file is included from gc.h
file.
* include/gc_version.h: Likewise.

* gc_dlopen.c: Empty unit for NaCl.
* os_dep.c: Include fcntl.h for NaCl.
* os_dep.c (GC_get_main_stack_base): Ignore
USE_GET_STACKBASE_FOR_MAIN macro for NaCl.
* os_dep.c (GC_get_stack_base): Return GC_UNIMPLEMENTED for NaCl.
* os_dep.c (GC_remap): Use mmap (instead of mprotect) for NaCl.
* pthread_start.c (GC_inner_start_routine): Don't invoke
pthread_cleanup_push/pop for NaCl.
* pthread_stop_world.c (GC_nacl_num_gc_threads,
GC_nacl_thread_idx, GC_nacl_park_threads_now,
GC_nacl_thread_parker, GC_nacl_gc_thread_self,
GC_nacl_thread_parked, GC_nacl_thread_used,
GC_nacl_thread_parking_inited, GC_nacl_thread_alloc_lock): New
variable (fo NaCl only).
* pthread_stop_world.c (GC_remove_allowed_signals,
suspend_handler_mask, GC_stop_count, GC_world_is_stopped,
GC_retry_signals, SIG_THR_RESTART, GC_suspend_ack_sem,
GC_restart_ack_sem, GC_suspend_handler_inner, GC_suspend_handler,
GC_restart_handler): Don't define for NaCl.
* pthread_support.c (GC_get_nprocs): Likewise.
* include/private/gc_priv.h (SIG_SUSPEND): Likewise.
* include/private/gcconfig.h (LINUX): Likewise.
* pthread_stop_world.c (GC_push_all_stacks): Push register storage
for NaCl.
* pthread_stop_world.c (GC_suspend_all, GC_stop_world,
GC_start_world): Implement for NaCl.
* pthread_stop_world.c (GC_stop_world): Don't define unused "i"
local variable for OpenBSD (and NaCl).
* pthread_stop_world.c (NACL_STORE_REGS): New macro definition for
NaCl.
* pthread_stop_world.c (nacl_pre_syscall_hook,
__nacl_suspend_thread_if_needed, nacl_post_syscall_hook,
GC_nacl_initialize_gc_thread, GC_nacl_shutdown_gc_thread): New
function (for NaCl only).
* pthread_stop_world.c (GC_stop_init): Empty for NaCl.
* pthread_support.c (pthread_cancel, pthread_sigmask): Don't
redirect for NaCl.
* include/gc_pthread_redirects.h (pthread_cancel,
pthread_sigmask): Likewise.
* pthread_support.c (GC_nacl_initialize_gc_thread,
GC_nacl_shutdown_gc_thread): New internal prototype (NaCl only).
* pthread_support.c (GC_new_thread, GC_delete_thread): Initialize
and shutdown thread for NaCl.
* pthread_support.c (GC_thr_init): Call sysconf for NaCl.
* pthread_support.c (GC_pthread_exit): Call GC_thread_exit_proc
for NaCl.
* include/gc.h: Don't include features.h for NaCl.
* include/gc_pthread_redirects.h (GC_PTHREAD_CONST): New macro.
* include/gc_pthread_redirects.h (GC_pthread_create): Use
GC_PTHREAD_CONST instead of const.
* win32_threads.c (GC_pthread_create): Likewise.
* pthread_support.c (GC_pthread_create_t, GC_pthread_create,
pthread_create): Likewise.
* include/private/gcconfig.h (NACL): Recognize NaCl.
* include/private/gcconfig.h (GC_LINUX_THREADS): Valid for NaCl.
* include/private/pthread_stop_world.h (thread_stop_info): Add
reg_storage member; define NACL_GC_REG_STORAGE_SIZE macro (for
NaCl only).
* include/private/pthread_support.h (GC_nacl_gc_thread_self):
Declare internal variable (for NaCl only).

* mach_dep.c (GC_with_callee_saves_pushed): Fix FE_ALL_EXCEPT
macro.

* mark.c (GC_mark_some): Prefix and suffix "asm" and "volatile"
keywords with double underscore.
* os_dep.c (catch_exception_raise, catch_exception_raise_state,
catch_exception_raise_state_identity): Add GC_API_OSCALL to
function definition.
* os_dep.c (catch_exception_raise_state,
catch_exception_raise_state_identity): Move definition to be
before GC_ports.
* os_dep.c (catch_exception_raise): Declare to have the symbol
defined before GC_ports.
* os_dep.c (GC_ports): Store references to catch_exception_raise,
catch_exception_raise_state, catch_exception_raise_state_identity
(to prevent stripping these symbols as dead).
* os_dep.c (catch_exception_raise, catch_exception_raise_state,
catch_exception_raise_state_identity): Mark these symbols as
"referenced dynamically" via an assembler directive (unless
NO_DESC_CATCH_EXCEPTION_RAISE).
* include/private/gc_priv.h (GC_API_OSCALL): New macro (defined
similar to GC_API but as if GC_DLL is always defined).

* os_dep.c: Don't include signal.h for GC_write_fault_handler on
Win32.
* os_dep.c (SIG_OK): Don't return true unless SIGSEGV or SIGBUS on
FreeBSD.
* os_dep.c (CODE_OK): Use SEGV_ACCERR on FreeBSD (define
SEGV_ACCERR for older FreeBSD releases).

* dyn_load.c (GC_register_map_entries,
GC_register_dynamic_libraries_dl_iterate_phdr): Calculate
DATASTART only once if DATASTART_IS_FUNC.
* dyn_load.c (GC_register_dynamic_libraries_dl_iterate_phdr):
Calculate DATAEND only once if DATAEND_IS_FUNC.
* dyn_load.c: Add comment to some endif; realign some code.
* dyn_load.c (GC_init_dyld): Don't use
_dyld_bind_fully_image_containing_address if
NO_DYLD_BIND_FULLY_IMAGE defined; add FIXME.
* include/private/gcconfig.h (GC_data_start, GC_find_limit):
Declare if used by DATASTART/DATAEND, respectively.
* include/private/gcconfig.h (DATASTART_IS_FUNC, DATAEND_IS_FUNC):
Define if DATASTART/DATAEND is a function, respectively.
* include/private/gcconfig.h (GETPAGESIZE, NO_PTHREAD_TRYLOCK,
NO_DYLD_BIND_FULLY_IMAGE): Define for Darwin/arm as well; include
unistd.h.

* os_dep.c (GC_setpagesize, GC_task_self, PROTECT, UNPROTECT):
Reorder to remove redundant ifdef for Win32.
* os_dep.c: Add comment to some endif.
* os_dep.c: Include pthread.h (for Linux even if single-threaded)
if USE_GET_STACKBASE_FOR_MAIN; also include it for Darwin.
* os_dep.c (STACKBOTTOM): Redefine for Darwin (unless prohibited
for some reason).
* os_dep.c (GC_get_main_stack_base): Allow
USE_GET_STACKBASE_FOR_MAIN for Linux even if single-threaded; add
assertion for the returned result.
* os_dep.c (GC_get_stack_base): Define for Darwin if
multi-threaded.
* os_dep.c (SIG_OK, CODE_OK): Add comment (for FreeBSD).
* os_dep.c (ID_STOP, ID_RESUME): Define only if threads.
* os_dep.c (catch_exception_raise): Remove redundant parentheses;
refine the documentation.

* NT_MAKEFILE: Define _CRT_SECURE_NO_DEPRECATE for C++ files as
well.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* doc/README.macros (USE_GET_STACKBASE_FOR_MAIN): Refine.
* include/gc.h (GC_INIT): Document.
* include/private/gc_priv.h (GC_MACH_HEADER, GC_MACH_SECTION,
GC_GETSECTBYNAME): Define depending only on the word size (i.e.,
define these macros also for ARM).
* tests/test.c (check_heap_stats): Print main thread stack bottom
as well (only if verbose mode is on).

* mach_dep.c (GC_with_callee_saves_pushed): Fix and improve code
introduced by the previous patch (if GETCONTEXT_FPU_EXCMASK_BUG
and X86_64).

* darwin_stop_world.c (GC_FindTopOfStack): Prefix and suffix
"volatile" keyword with double underscore.
* mach_dep.c (GETCONTEXT_FPU_EXCMASK_BUG): Recognize new macro and
include fenv.h if defined (unless NO_GETCONTEXT or HAVE_PUSH_REGS).
* mach_dep.c (GC_with_callee_saves_pushed): Restore FPU exception
mask corrupted by getcontext if GETCONTEXT_FPU_EXCMASK_BUG.
* include/private/gcconfig.h (GETCONTEXT_FPU_EXCMASK_BUG): Define
for Linux/amd64 (since its GLibc getcontext currently has the bug).

* allchblk.c (GC_use_entire_heap): Change type to int (as declared
in gc.h); set the default value depending on new GC_USE_ENTIRE_HEAP
macro.
* misc.c (GC_init): Test GC_USE_ENTIRE_HEAP environment variable to
alter the default value of GC_use_entire_heap.
* doc/README.environment (GC_USE_ENTIRE_HEAP): Document.
* doc/README.macros (GC_USE_ENTIRE_HEAP): Likewise.

* include/private/gcconfig.h (PARALLEL_MARK): Do not make it cause
MPROTECT_VDB undefining.

* include/private/gcconfig.h (DYNAMIC_LOADING): Fix filename in
the comment.

* include/private/gc_priv.h (_GC_arrays): Move the conditional
macro definitions (shortcuts for GC_arrays members) into the
structure body.

* darwin_stop_world.c (GC_mach_handler_thread,
GC_use_mach_handler_thread,
GC_darwin_register_mach_handler_thread): Define only if
MPROTECT_VDB.
* darwin_stop_world.c (GC_suspend_thread_list): Use
GC_mach_handler_thread and GC_use_mach_handler_thread only if
MPROTECT_VDB.
* darwin_stop_world.c (GC_stop_world): Reset GC_mach_threads_count
only if defined (i.e. unless GC_NO_THREADS_DISCOVERY).
* misc.c (GC_init): Fix comment for GWW_VDB.
* os_dep.c (DARWIN_EXC_STATE, DARWIN_EXC_STATE_COUNT,
DARWIN_EXC_STATE_T, DARWIN_EXC_STATE_DAR): New macros.
* os_dep.c (catch_exception_raise): Use DARWIN_EXC_STATE,
DARWIN_EXC_STATE_COUNT, DARWIN_EXC_STATE_T, DARWIN_EXC_STATE_DAR.
* pthread_support.c (GC_thr_init): Define "dummy" local variable
only unless GC_DARWIN_THREADS.
* include/private/gcconfig.h (MPROTECT_VDB): Define for Darwin
even in the single-threaded mode; define for iPhone/iPad.
* include/private/gcconfig.h (IA64): Remove unnecessary "ifdef"
around "undef".
* include/private/gcconfig.h (HEURISTIC1): Remove unused for
Cygwin.
* include/private/gcconfig.h (STACKBOTTOM): Use fixed address for
Darwin/arm (instead of HEURISTIC1).

* misc.c (GC_write): Replace multiple "ifdef/endif" with "elif"
(for ECOS and NOSYS).
* os_dep.c (GC_get_main_stack_base): Likewise.
* os_dep.c (GC_get_main_stack_base): Check
USE_GET_STACKBASE_FOR_MAIN macro before checking STACKBOTTOM one;
remove "dummy" variable (use result one instead).
* doc/README.macros (SN_TARGET_PS3): Document.
* extra/threadlibs.c (main): Don't output "-lpthread" (and "-ldl")
for Android.
* include/private/pthread_support.h: Fix comment for "endif".

* misc.c (GC_allocate_ml): Define global variable if SN_TARGET_PS3.
* misc.c (GC_init): Initialize GC_allocate_ml if SN_TARGET_PS3.
* os_dep.c (SIGSEGV): Define to dummy zero if SN_TARGET_PS3.
* os_dep.c (GC_unix_mmap_get_mem): Don't define if SN_TARGET_PS3.
* os_dep.c (GC_default_push_other_roots,
GC_push_thread_structures): Define for SN_TARGET_PS3.
* include/private/gc_locks.h (GC_allocate_ml, LOCK, UNLOCK): Define
for SN_TARGET_PS3.
* include/private/gcconfig.h (SN_TARGET_PS3): Recognize new macro
(Sony PS/3 target).
* include/private/gcconfig.h (THREADS): Define unconditionally if
SN_TARGET_PS3.
* include/private/gcconfig.h (GET_MEM): Define for SN_TARGET_PS3.

* alloc.c (GC_collect_or_expand): Replace NIL with NULL in message.
* dbg_mlc.c (GC_debug_malloc, GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page,
GC_debug_generic_malloc_inner,
GC_generic_malloc_inner_ignore_off_page, GC_debug_malloc_stubborn,
GC_debug_malloc_atomic, GC_debug_malloc_uncollectable,
GC_debug_malloc_atomic_uncollectable): Likewise.
* gcj_mlc.c (GC_debug_gcj_malloc): Likewise.
* dbg_mlc.c (GC_check_annotated_obj): Replace NIL with NULL in a
comment.
* dyn_load.c (GC_FirstDLOpenedLinkMap): Likewise.
* mark_rts.c (GC_roots_present): Likewise.
* doc/README: Likewise.
* include/private/gc_hdrs.h (IS_FORWARDING_ADDR_OR_NIL): Likewise.
* include/private/gc_priv.h (_GC_arrays): Likewise.

* configure.ac: Use AC_CHECK_LIB() to check for pthread instead of
just blindly linking to -lpthread, as Android includes pthread
support within libc and does not provide a separate libpthread.
* dyn_load.c (GC_register_dynamic_libraries): Skip current link map
entry if l_addr is NULL (Android/bionic only).
* pthread_stop_world.c (android_thread_kill): New internal function
(Android only).
* pthread_stop_world.c (GC_suspend_all, GC_start_world): Call
android_thread_kill (based on tkill) instead of pthread_kill on
Android (since pthread_kill cannot be used safely on the platform).
* pthread_support.c (GC_new_thread): Store thread Id (obtained from
gettid) for use by android_thread_kill (Android only).
* include/private/pthread_support.h (GC_Thread_Rep): Add kernel_id
structure member (Android only).
* include/private/gcconfig.h: Recognize __x86_64 macro as a synonym
of __x86_64__ (Darwin); define __environ macro (Android on M68K).

* allchblk.c (GC_freehblk): Print extended error message (done via
GC_printf() before aborting with a short message) only if
GC_print_stats.
* dyn_load.c (GC_register_dynamic_libraries): Likewise.
* os_dep.c (GC_get_maps, GC_register_data_segments, GC_remap,
PROTECT, GC_write_fault_handler, GC_mprotect_thread): Likewise.
* pthread_stop_world.c (GC_start_world): Likewise.
* win32_threads.c (GC_register_my_thread_inner): Likewise.
* os_dep.c (GC_get_main_stack_base, GC_register_data_segments,
GC_dirty_init): Remove redundant print of an error message before
aborting with the same message.
* os_dep.c (GC_register_data_segments): Remove format specifier
from the string passed to GC_err_puts(); use ABORT instead of EXIT
(if invalid executable type).
* os_dep.c (GC_remap): Adjust printf format specifier (for long
type).
* os_dep.c (GC_dirty_init): Print a message about SIG_IGN detected
(for SIGSEGV/BUS) only if GC_print_stats.
* os_dep.c (catch_exception_raise): Join 2 adjacent GC_err_printf
calls.

* tests/test.c (main): Print the relevant message if GWW_VDB.
* include/private/gcconfig.h: Don't define MPROTECT_VDB for Win32
on x64 if compiled by GCC.

* tests/staticrootstest.c: Include string.h for memset() prototype.
* tests/thread_leak_test.c (main): Fix printf() format specifiers.

* CMakeLists.txt: Check enable_parallel_mark on Darwin.
* configure.ac: Likewise.
* darwin_stop_world.c (DARWIN_SUSPEND_GC_THREADS,
DARWIN_QUERY_TASK_THREADS): Rename to GC_NO_THREADS_DISCOVERY and
GC_DISCOVER_TASK_THREADS, respectively.
* os_dep.c (DARWIN_SUSPEND_GC_THREADS): Likewise.
* pthread_support.c (DARWIN_SUSPEND_GC_THREADS): Likewise.
* darwin_stop_world.c (DARWIN_QUERY_TASK_THREADS): Don't define
(and remove FIXME).
* darwin_stop_world.c (GC_use_threads_discovery): Add GC_API;
comment; remove FIXME.
* win32_threads.c (GC_NO_DLLMAIN): Rename to
GC_NO_THREADS_DISCOVERY.
* tests/test.c (GC_NO_DLLMAIN): Likewise.
* doc/README.macros (GC_NO_DLLMAIN): Likewise.
* doc/README.win32 (GC_NO_DLLMAIN): Likewise.
* doc/README.macros (GC_NO_THREADS_DISCOVERY): Update the comment.
* win32_threads.c (GC_win32_dll_threads): Define as macro to true
if GC_DISCOVER_TASK_THREADS (and not GC_NO_THREADS_DISCOVERY);
update the comment.
* win32_threads.c (GC_use_DllMain): Rename to
GC_use_threads_discovery; do not set GC_win32_dll_threads if
GC_DISCOVER_TASK_THREADS.
* win32_threads.c (GC_started_thread_while_stopped,
GC_lookup_thread_inner, UNPROTECT_THREAD, GC_lookup_pthread,
GC_thr_init, GC_pthread_create, DllMain): Rewrite some expressions
which use GC_win32_dll_threads to minimize the possibility of
an "unreachable code" compiler warning when GC_win32_dll_threads
is defined as a macro.
* win32_threads.c (GC_unregister_my_thread): Don't call
GC_delete_thread() if GC_win32_dll_threads and THREAD_LOCAL_ALLOC
(since can't happen); use "t" local variable only if not
GC_win32_dll_threads.
* doc/README.macros (GC_DISCOVER_TASK_THREADS): Document.
* include/gc.h (GC_use_DllMain): Rename to
GC_use_threads_discovery but keep old name as a macro definition.
* include/gc.h (GC_use_threads_discovery): Declare also for
Darwin; update the comment.
* tests/test.c (main): Call GC_use_threads_discovery for Darwin
(to test the mode if possible).

* darwin_stop_world.c (DARWIN_SUSPEND_GC_THREADS,
DARWIN_QUERY_TASK_THREADS): New macro recognized.
* darwin_stop_world.c (GC_query_task_threads): add STATIC;
initialize to false; define as macro if DARWIN_SUSPEND_GC_THREADS
or DARWIN_QUERY_TASK_THREADS; remove FIXME.
* darwin_stop_world.c (GC_use_threads_discovery): New function
(for setting GC_query_task_threads value).
* darwin_stop_world.c (GC_mach_handler_thread,
GC_use_mach_handler_thread, GC_mach_thread, GC_MAX_MACH_THREADS,
GC_mach_threads, GC_mach_threads_count, GC_suspend_thread_list,
GC_darwin_register_mach_handler_thread): Define only if not
DARWIN_SUSPEND_GC_THREADS.
* darwin_stop_world.c (GC_stop_world, GC_start_world): Exclude
the code for GC_query_task_threads case from compilation unless
DARWIN_SUSPEND_GC_THREADS.
* os_dep.c (GC_darwin_register_mach_handler_thread): Declared only
if Darwin threads and not DARWIN_SUSPEND_GC_THREADS.
* os_dep.c (GC_mprotect_thread): Call
GC_darwin_register_mach_handler_thread only if THREADS and not
DARWIN_SUSPEND_GC_THREADS.
* pthread_support.c (marker_mach_threads): Don't define if
DARWIN_SUSPEND_GC_THREADS.
* pthread_support.c (GC_mark_thread): Don't fill in
marker_mach_threads if DARWIN_SUSPEND_GC_THREADS.
* include/private/gc_locks.h (GC_need_to_lock): Always declare for
THREADS case.

* darwin_stop_world.c (GC_query_task_threads): Don't define to
false for DARWIN_DONT_PARSE_STACK case; unconditionally initialize
the variable to false (for now).
* darwin_stop_world.c (GC_push_all_stacks): Call task_threads()
only if not DARWIN_DONT_PARSE_STACK.
* darwin_stop_world.c (GC_stop_world, GC_start_world): Use the
approach based on task_threads() only if GC_query_task_threads
else use GC_threads table.

* darwin_stop_world.c (GC_mach_threads): Remove static qualifier.
* darwin_stop_world.c (GC_stop_init): Remove (as we do not need to
really clear GC_mach_threads[]).
* darwin_stop_world.c (GC_stop_world): Reset GC_mach_threads_count
(instead of calling GC_stop_init).
* include/private/pthread_support.h (GC_stop_init): Remove proto.
* pthread_support.c (GC_stop_init): Add proto (unless Darwin).
* pthread_support.c (GC_thr_init): Don't call GC_stop_init() if
GC_DARWIN_THREADS.

* darwin_stop_world.c (GC_stack_range_for): New static function
(move the code from GC_push_all_stacks).
* darwin_stop_world.c (GC_push_all_stacks): Call
GC_stack_range_for(); rename kern_return local variable to
kern_result.
* darwin_stop_world.c (GC_is_mach_marker): Change argument type
from mach_port_t to thread_act_t.
* pthread_support.c (GC_is_mach_marker): Likewise.

* darwin_stop_world.c (GC_push_all_stacks): Fix "my_task" local
variable initialization (always call current_task()).
* pthread_support.c (GC_thr_init, GC_register_my_thread_inner):
Don't set thread's stop_info.stack_ptr value for Darwin.
* include/private/darwin_stop_world.h (thread_stop_info): Update
the comment for stack_ptr.

* darwin_stop_world.c (GC_push_all_stacks): Rename "r", "me" local
variables to "kern_return" and "my_thread" ones, respectively;
call mach_port_deallocate() unconditionally.
* darwin_stop_world.c (GC_stop_world): Don't call mach_thread_self
if DEBUG_THREADS.

* darwin_stop_world.c (GC_mach_thread): Move from
darwin_stop_world.h.
* include/private/darwin_stop_world.h (GC_mach_thread): Remove.
* win32_threads.c (GC_start_world): Define "thread_id" local
variable only if GC_ASSERTIONS; decide whether to resume a thread
based on its "suspended" field value; assert that suspended thread
stack_base is non-zero and the thread is not our one.

* darwin_stop_world.c (GC_thread_resume): New inline function
(move code from GC_thread_resume).
* darwin_stop_world.c (GC_start_world): Check result of
task_threads(); call GC_thread_resume().
* os_dep.c (GC_malloc_heap_l, GC_is_malloc_heap_base): Define
only if not CYGWIN32.
* os_dep.c (GC_is_heap_base): Call GC_is_malloc_heap_base() only
if not CYGWIN32.

* darwin_stop_world.c (FindTopOfStack): Change return type to
ptr_t (from long); make GC_INNER; add GC_ prefix.
* darwin_stop_world.c (GC_push_all_stacks): Add thread_blocked
local variable (initialized from the corresponding GC_thread
field unless GC_query_task_threads); add assertion that our
thread is not blocked; prefix FindTopOfStack with GC_ and remove
no longer needed cast to ptr_t of the result; handle thread
blocked case (and remove FIXME); use GC_push_all_stack_sections
unless GC_query_task_threads (and remove FIXME).
* pthread_support.c (GC_FindTopOfStack): Declare (if needed).
* pthread_support.c (GC_do_blocking_inner): Call
GC_save_regs_in_stack (if needed) before acquiring the lock.
* win32_threads.c (GC_do_blocking_inner): Likewise.
* pthread_support.c (GC_do_blocking_inner): Set/clear topOfStack
field of GC_thread (Darwin only).
* include/private/pthread_support.h (GC_thread): Add topOfStack
field for Darwin (unless DARWIN_DONT_PARSE_STACK).

* finalize.c (GC_check_finalizer_nested): Change return type to
char pointer (instead of int pointer); use explicit cast for
GC_finalizer_nested assignment.
* pthread_support.c (GC_check_finalizer_nested): Likewise.
* win32_threads.c (GC_check_finalizer_nested): Likewise.
* finalize.c (GC_finalizer_nested): Change type to unsigned char.
* finalize.c (GC_notify_or_invoke_finalizers): Change type of
"pnested" local variable to char pointer.
* pthread_support.c (GC_do_blocking_inner,
GC_call_with_gc_active): Use explicit cast for "thread_blocked"
field assignment.
* win32_threads.c (GC_lookup_pthread): Use explicit cast for
"suspended" field assignment.
* win32_threads.c (GC_Thread_Rep): Use short type for
finalizer_skipped; use char type for finalizer_nested and flags
fields and reorder some fields (to minimize GC_Thread_Rep
structure size).
* include/private/pthread_support.h (GC_Thread_Rep): Likewise.
* win32_threads.c (GC_Thread_Rep): Use char type for suspended
field (instead of GC_bool).
* include/private/pthread_support.h (GC_Thread_Rep): Use char type
for thread_blocked field (instead of short).

* darwin_stop_world.c (GC_query_task_threads): New variable (or
macro).
* darwin_stop_world.c (GC_push_all_stacks): Use
GC_query_task_threads (to choose between algorithms based on
kernel task_threads and based on GC_threads table); update FIXME;
remove commented out GC_push_one statements.
* pthread_support.c (GC_thr_init, GC_do_blocking_inner,
GC_call_with_gc_active, GC_register_my_thread_inner): Initialize
stack_ptr field for all platforms.
* pthread_support.c (GC_call_with_gc_active): Initialize
saved_stack_ptr field for all platforms.
* include/private/darwin_stop_world.h (thread_stop_info): Add
stack_ptr field; change type of already_suspended from int to
GC_bool.

* darwin_stop_world.c (GC_MAX_MACH_THREADS): New macro.
* darwin_stop_world.c (GC_mach_threads, GC_stop_init): Use
GC_MAX_MACH_THREADS instead of THREAD_TABLE_SZ.
* darwin_stop_world.c (GC_mach_threads): Add FIXME.
* darwin_stop_world.c (GC_stop_init, GC_suspend_thread_list,
GC_stop_world): Use FALSE and TRUE for already_suspended field and
"changed", "found" variables.
* darwin_stop_world.c (GC_is_mach_marker): New prototype (only if
PARALLEL_MARK).
* darwin_stop_world.c (GC_suspend_thread_list): Change return type
to GC_bool; change type of "changed", "found" to GC_bool; make
"my_thread" as an argument (instead of acquiring/deallocating it
locally); do not add my_thread, GC_mach_handler_thread and marker
threads to GC_mach_threads table; check for overflow of
GC_mach_threads table; increase GC_mach_threads_count if "found"
is true and info.suspend_count is non-zero.
* darwin_stop_world.c (GC_suspend_thread_list, GC_start_world):
Adjust "thread" format specifiers for GC_printf(); search thread
in "old_list" starting from the previous found one.
* darwin_stop_world.c (GC_stop_world): Rename "changes" to
"changed" local variable; remove "result" variable; adjust
GC_printf debugging message.
* darwin_stop_world.c (GC_start_world): Do not check for
my_thread and GC_use_mach_handler_thread (since they are not added
to GC_mach_threads table); call thread_info() only if
DEBUG_THREADS or GC_ASSERTIONS.
* pthread_support.c (marker_mach_threads): New static variable (if
Darwin).
* pthread_support.c (GC_is_mach_marker): New function (if Darwin).
* pthread_support.c (GC_mark_thread): Fill in marker_mach_threads
table (if Darwin).

* alloc.c (GC_parallel): Define only if THREADS.
* misc.c (GC_get_parallel): Likewise.
* include/gc.h (GC_parallel, GC_get_parallel,
GC_get_suspend_signal, GC_allow_register_threads,
GC_register_my_thread, GC_unregister_my_thread): Define only if
GC_THREADS.
* include/gc.h (GC_get_heap_size): Fix a typo in a comment.

* configure.ac: Use `AC_C_INLINE'.
* include/private/gc_priv.h (GC_INLINE): Use "inline" keyword
(determined by configure AC_C_INLINE) if HAVE_CONFIG_H is defined.

* dyn_load.c (DL_ITERATE_PHDR_STRONG): New macro (define for
FreeBSD).
* dyn_load.c (GC_register_main_static_data): Move the definition
above GC_register_dynamic_libraries_dl_iterate_phdr one (FreeBSD
case); unconditionally return FALSE if DL_ITERATE_PHDR_STRONG.
* dyn_load.c (GC_register_dynamic_libraries_dl_iterate_phdr): Test
GC_register_main_static_data() result (instead of direct testing
of dl_iterate_phdr (to prevent a compiler warning).
* os_dep.c (CODE_OK): Test si_code also for the value of 2
(FreeBSD case; required for FreeBSD v7+).
* os_dep.c (CODE_OK): Properly use parentheses (HPUX case).
* include/private/gcconfig.h (DATASTART): Cast etext argument in
GC_FreeBSDGetDataStart() call; remove unnecessary "&" (FreeBSD
case).

* include/private/specific.h (quick_thread_id): Define thru
GC_approx_sp(); define as a macro.
* include/private/specific.h (getspecific): Use GC_INLINE instead
of __inline__ (to work around Sun CC which does not recognize
inline keyword surrounded with underscores).

* darwin_stop_world.c (FindTopOfStack): Simplify condition
expressions.
* darwin_stop_world.c (GC_push_all_stacks): Merge two variants
of this function (DARWIN_DONT_PARSE_STACK).
* darwin_stop_world.c (GC_push_all_stacks): Add a check for our
thread is found (same as in pthread_stop_world.c).
* darwin_stop_world.c (GC_push_all_stacks): Print the number of
scanned threads if verbose (same as in pthread_stop_world.c).

* darwin_stop_world.c (GC_push_all_stacks): Reset
thread_state_count value before every thread_get_state call;
refine the comment for thread_state_count.
* darwin_stop_world.c (GC_push_all_stacks): Ignore rsp, rip/eip,
rflags, cs, fs, gs, ss, ds, es, __pc registers; uncomment ebp
register pushing.
* darwin_stop_world.c (GC_push_all_stacks): Set outCount to
GC_MACH_THREAD_STATE_COUNT (instead of THREAD_STATE_MAX).
* darwin_stop_world.c (GC_push_all_stacks): Remove FIXME and WARN
for i386.

* doc/README.macros (DARWIN_DONT_PARSE_STACK): Fix a typo.
* darwin_stop_world.c (GC_use_mach_handler_thread): Change type
to GC_bool.
* darwin_stop_world.c (GC_suspend_thread_list, GC_start_world):
Simplify the expressions involving GC_use_mach_handler_thread.
* darwin_stop_world.c (GC_darwin_register_mach_handler_thread):
Initialize GC_use_mach_handler_thread to TRUE (instead of 1).

* include/gc_pthread_redirects.h (GC_pthread_sigmask, GC_dlopen,
pthread_sigmask, dlopen): Don't define for Win32 pthreads (and
don't include signal.h and dlfcn.h).

* dyn_load.c (GC_register_dynlib_callback): Add FIXME.

* include/private/gcconfig.h: Add support for FreeBSD on ppc64.

* os_dep.c (PROTECT, UNPROTECT): Correct VM_PROT_EXEC to
VM_PROT_EXECUTE.

* os_dep.c (os2_alloc): Don't set PAG_EXECUTE unless
pages_executable is on.
* os_dep.c (os2_alloc): Add FIXME (for recursion).
* os_dep.c (UNPROTECT): Abort with a more informative message if
pages_executable is on ("mprotect" case).
* os_dep.c (PROTECT, UNPROTECT): Set VM_PROT_EXEC if
pages_executable is on (Darwin case).
* pthread_support.c (GC_init_real_syms): Abort with an informative
message if libgc is linked after libpthread.

* dyn_load.c (GC_register_dynlib_callback): Adjust "start" pointer
for 64-bit targets.
* pthread_support.c (start_mark_threads): Expand PTHREAD_CREATE
macro.
* pthread_support.c (start_mark_threads): Call INIT_REAL_SYMS()
since REAL(pthread_create) is used.
* pthread_support.c (PTHREAD_CREATE): Remove unused.

* extra/threadlibs.c (main): Remove --wrap for "read" (since not
wrapped anymore).
* doc/README.linux (GC_USE_LD_WRAP): Likewise.
* os_dep.c (__wrap_read): Likewise.

* include/gc_pthread_redirects.h: Test GC_PTHREADS and GC_H at the
beginning of the file.
* include/gc_pthread_redirects.h (GC_PTHREAD_EXIT_ATTRIBUTE): New
macro (defined only for Linux and Solaris).
* include/gc_pthread_redirects.h (GC_pthread_cancel,
GC_pthread_exit): Declare new API function (only if
GC_PTHREAD_EXIT_ATTRIBUTE).
* include/gc_pthread_redirects.h (pthread_cancel, pthread_exit):
Redirect (if GC_PTHREAD_EXIT_ATTRIBUTE).
* include/private/pthread_support.h (DISABLED_GC): New macro.
* pthread_support.c (pthread_cancel, pthread_exit): Restore
original definition or declare "real" function (if needed and
GC_PTHREAD_EXIT_ATTRIBUTE).
* pthread_support.c (GC_pthread_cancel_t, GC_pthread_exit_t):
Declare new types if needed.
* pthread_support.c (GC_pthread_cancel, GC_pthread_exit): New
function definition (only if GC_PTHREAD_EXIT_ATTRIBUTE).
* pthread_support.c (GC_init_real_syms): Initialize pointers to
the "real" pthread_cancel and pthread_exit (only if
GC_PTHREAD_EXIT_ATTRIBUTE).
* pthread_support.c (GC_unregister_my_thread): Enable collections
if DISABLED_GC was set (only if GC_PTHREAD_EXIT_ATTRIBUTE).
* pthread_support.c (pthread_cancel, pthread_exit): New wrapped
function definition (only if GC_PTHREAD_EXIT_ATTRIBUTE defined).
* pthread_support.c (GC_start_routine): Refine the comment.
* extra/threadlibs.c (main): Adjust --wrap (add "read",
"pthread_exit", "pthread_cancel" but remove "sleep").
* doc/README.linux (GC_USE_LD_WRAP): Likewise.

* include/gc.h (GC_MALLOC_STUBBORN): Remove trailing ';' in the
macro definition.
* include/gc.h (GC_reachable_here): Likewise.
* include/gc.h (GC_reachable_here): Prefix and postfix "volatile"
with double '_'.

* pthread_start.c: New file.
* CMakeLists.txt (SRC): Add pthread_start.c.
* Makefile.am (libgc_la_SOURCES): Likewise.
* Makefile.direct (CSRCS): Likewise.
* Makefile.direct (OBJS): Add pthread_start.obj.
* extra/gc.c: Add a comment; include pthread_start.c.
* pthread_support.c (start_info): Move the struct definition down
closer to its usage.
* pthread_support.c (GC_thread_exit_proc): Replace STATIC with
GC_INNER.
* pthread_support.c (GC_inner_start_routine): Move to the
definition to pthread_start.c; leave only the prototype; remove
STATIC.
* pthread_support.c (GC_start_rtn_prepare_thread): New function
(contains parts of the original GC_inner_start_routine).

* configure.ac (NO_EXECUTE_PERMISSION): Add comment.
* doc/README.macros (NO_EXECUTE_PERMISSION): Update the
documentation.
* include/gc.h (GC_set_pages_executable, GC_get_pages_executable):
New API function declaration.
* os_dep.c (OPT_PROT_EXEC): Remove (superseded by
pages_executable).
* os_dep.c (pages_executable): New static variable.
* os_dep.c (IGNORE_PAGES_EXECUTABLE): New macro (used by
GC_get_pages_executable only).
* os_dep.c (GC_unix_mmap_get_mem, GC_remap, PROTECT, UNPROTECT):
Replace OPT_PROT_EXEC with pages_executable.
* os_dep.c (GC_unix_mmap_get_mem, GC_remap, GC_win32_get_mem,
GC_wince_get_mem, UNPROTECT): Undefine IGNORE_PAGES_EXECUTABLE.
* os_dep.c (GC_win32_get_mem, GC_wince_get_mem, GC_remap, PROTECT,
UNPROTECT): Use PAGE_EXECUTE_... only if pages_executable is on.
* os_dep.c (GC_set_pages_executable, GC_get_pages_executable): New
API function definition.

* tests/test.c (check_heap_stats): Increase max_heap_sz by 20% for
64-bit CPUs (to prevent "Unexpected heap growth" failure on Win64,
at least).

* tests/test.c (check_heap_stats): Increase max_heap_sz by 25% for
32-bit CPUs (to prevent "Unexpected heap growth" failure).

* gc_dlopen.c (dlopen): Prototype REAL_DLFUNC if GC_USE_LD_WRAP.
* pthread_support.c (pthread_create, pthread_join, pthread_detach,
pthread_sigmask): Likewise.
* gc_dlopen.c (dlopen): Remove cast (redundant since the prototype
is added).
* gc_dlopen.c (GC_dlopen): Fix return type.
* pthread_support.c (GC_init_real_syms): Don't define
LIBPTHREAD_NAME, LIBPTHREAD_NAME_LEN, len, namebuf and
libpthread_name if RTLD_NEXT.

* gc_dlopen.c (disable_gc_for_dlopen): Update the comment.
* gc_dlopen.c (dlopen): Likewise.
* include/gc.h (GC_enable_incremental): Refine the comment.
* include/gc.h (DECLSPEC_NORETURN): Define macro as empty if
missing (only for Win32).
* include/gc.h (GC_ExitThread): Use DECLSPEC_NORETURN.
* win32_threads.c (GC_ExitThread): Likewise.
* include/gc.h (GC_endthreadex): Add a comment.

* include/cord.h: Fix typos.

* Makefile.am (EXTRA_DIST): Add "CMakeLists.txt" and
"tests/CMakeLists.txt".
* doc/doc.am (dist_pkgdata_DATA): Add "doc/README.cmake".

* mach_dep.c (NO_GETCONTEXT): Also define if AVR32.
* include/private/gcconfig.h (AVR32): New macro (also define the
supplementary macros for the target).
* include/private/thread_local_alloc (USE_COMPILER_TLS): Don't
define for AVR32.

* tests/leak_test.c (main): Explicitly define as returning int
(to prevent a spurious test failure on some Linux/alpha targets).
* tests/thread_leak_test.c (main): Likewise.
* tests/thread_leak_test.c: Initialize GC_find_leak in the main
thread (before GC_INIT) only.
* tests/leak_test.c (main): Use GC_set_find_leak() instead of
accessing GC_find_leak directly.
* tests/thread_leak_test.c (main): Likewise.

* include/gc.h (GC_find_leak, GC_finalize_on_demand,
GC_java_finalization, GC_dont_expand, GC_no_dls,
GC_dont_precollect): Simplify the comment (remove the information
about data races since the value is boolean).

* os_dep.c (GC_get_stack_base, GC_get_main_stack_base): New
Solaris-specific implementation (based on thr_stksegment).
* os_dep.c (stackbase_main_self, stackbase_main_ss_sp): New static
variable used by the Solaris-specific GC_get_stack_base().

* pthread_support.c (GC_mark_thread_local_free_lists,
GC_check_tls): Mark (and check) only for live threads (in case of
GC_destroy_thread_local() is called already but GC_delete_thread()
is not yet).
* win32_threads.c (GC_mark_thread_local_free_lists, GC_check_tls):
Likewise.

* NT_MAKEFILE: Remove the comment about DLL and Win32S.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_MAKEFILE: Add ".SUFFIXES" directive (to handle gc_cpp.cc
properly on VS 2005+).
* NT_MAKEFILE: Update GC log file name in comments.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* doc/README.win32: Likewise.
* NT_MAKEFILE: Remove ":full" for "-debug" option (since no
longer supported by VS).
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_MAKEFILE: Commented out copying of gc_cpp.cc to gc_cpp.cpp.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* NT_STATIC_THREADS_MAKEFILE: Add -D PARALLEL_MARK option.
* NT_STATIC_THREADS_MAKEFILE: Increase stack size for gctest.exe.
* NT_X64_STATIC_THREADS_MAKEFILE: Remove "-stack" option (use the
default stack size limit).
* NT_X64_THREADS_MAKEFILE: Rename "gc64_dll.dll" to "gc64.dll".
* win32_threads.c (GC_get_next_stack): Always define (since it is
also used for Cygwin now).

* alloc.c (GC_maybe_gc): Move GC_notify_full_gc() call upper to
be just before GC_clear_marks() call.
* include/gc_mark.h (GC_start_callback_proc): Refine the comment.

* Makefile.am (check_LTLIBRARIES): Initialize to empty.
* tests/tests.am (TESTS, check_PROGRAMS): Add staticrootstest.
* tests/tests.am (staticrootstest_SOURCES, staticrootstest_LDADD,
libstaticrootslib_la_SOURCES, libstaticrootslib_la_LIBADD,
libstaticrootslib_la_LDFLAGS, libstaticrootslib_la_DEPENDENCIES):
Define.
* tests/tests.am (check_LTLIBRARIES): Add libstaticrootslib.la.

* tests/staticrootstest.c: New file.
* tests/staticrootslib.c: Likewise.

* dyn_load.c (GC_get_next_stack, GC_cond_add_roots): Define for
Cygwin as well as other win32 targets.
* dyn_load.c (GC_wnt): Define to constant true.
* dyn_load.c (GC_register_dynamic_libraries): Define for Cygwin as
well as other win32 targets.
* mark_rts.c (rt_hash, GC_roots_present, add_roots_to_index):
Don't define for Cygwin, as on other win32.
* mark_rts.c (GC_add_roots_inner, GC_clear_roots): Handle on
Cygwin as for other win32 targets.
* mark_rts.c (GC_rebuild_root_index): Don't declare on Cygwin, as
other win32.
* mark_rts.c (GC_remove_tmp_roots): Do declare on Cygwin as on
other win32.
* mark_rts.c (GC_remove_roots, GC_remove_roots_inner): Don't
declare on Cygwin as on other win32.
* mark_rts.c (GC_is_tmp_root): Do declare on Cygwin when
!NO_DEBUGGING, as on other win32 targets.
* mark_rts.c (GC_cond_register_dynamic_libraries): Handle on
Cygwin as for other win32 targets.
* os_dep.c (GC_setpagesize): Handle on Cygwin as on other win32.
* os_dep.c (GC_get_main_stack_base): Don't declare on Cygwin, as
other win32.
* os_dep.c (GC_sysinfo): Declare on Cygwin, as other win32.
* os_dep.c (GC_win32_get_mem): Declare on Cygwin, as on other
Win32, but call GC_unix_get_mem instead of GlobalAlloc.
* os_dep.c (GC_win32_free_heap): Declare on Cygwin (as empty).
* ptr_chck.c (GC_is_visible): Register dynamic libraries on Cygwin
as on other win32 platforms.
* win32_threads.c (GC_get_next_stack): Define on Cygwin as well as
for dynamic loading targets.
* include/private/gc_priv.h (GC_INNER): Don't try to use
visibility on Cygwin which does not support it.
* include/private/gc_priv.h (struct roots): Don't declare r_next
member on Cygwin as on other windows hosts.
* include/private/gc_priv.h (LOG_RT_SIZE, RT_SIZE): Don't define
likewise.
* include/private/gc_priv.h (struct _GC_arrays): Do declare
_heap_bases[] member and don't declare _root_index likewise.
* include/private/gc_priv.h (GC_heap_bases): Do define likewise.
* include/private/gc_priv.h (_SYSTEM_INFO): Do forward-declare
likewise.
* include/private/gc_priv.h (GC_sysinfo): Do declare extern
likewise.
* include/private/gcconfig.h (GC_win32_get_mem, GET_MEM): Do
prototype on Cygwin as other win32 platforms.

* os_dep.c (GC_get_main_stack_base): Use pthread_getattr_np() and
pthread_attr_getstack() instead of GC_get_stack_base() (and check
returned stackaddr for NULL); output a warning on failure.

* alloc.c (GC_start_call_back): Replace the definition type to
GC_start_callback_proc.
* alloc.c (GC_set_start_callback, GC_get_start_callback): New
setter/getter function.
* alloc.c (GC_try_to_collect_inner): Call GC_notify_full_gc()
unconditionally (because GC_try_to_collect_inner always does full
GC).
* include/gc_mark.h (GC_start_callback_proc): New type.
* include/gc_mark.h (GC_set_start_callback,
GC_get_start_callback): New API function declaration.

* doc/README.macros (USE_GET_STACKBASE_FOR_MAIN): Document.
* os_dep.c (GC_get_main_stack_base): Recognize
USE_GET_STACKBASE_FOR_MAIN (only if THREADS and LINUX_STACKBOTTOM)
and use GC_get_stack_base() in this case.

* os_dep.c (GC_get_stack_base): Add LOCK/UNLOCK() (since
GC_find_limit_with_bound() should be called with the lock held).
* backgraph.c (FOR_EACH_PRED): Fix a typo.

* alloc.c (GC_set_stop_func, GC_get_stop_func): Add
DCL_LOCK_STATE.
* finalize.c (GC_notify_or_invoke_finalizers): Likewise.
* gc_dlopen.c (disable_gc_for_dlopen): Likewise.
* gcj_mlc.c (maybe_finalize, GC_debug_gcj_malloc): Likewise.
* mark.c (GC_print_trace): Likewise.
* misc.c (GC_set_warn_proc, GC_get_warn_proc, GC_enable,
GC_disable, GC_new_free_list, GC_new_kind, GC_new_proc,
GC_set_oom_fn, GC_get_oom_fn, GC_set_finalizer_notifier,
GC_get_finalizer_notifier): Likewise.
* os_dep.c (GC_get_stack_base, GC_print_callers): Likewise.
* pthread_support.c (GC_is_thread_tsd_valid,
GC_wait_for_gc_completion, GC_init_parallel, GC_do_blocking_inner,
GC_call_with_gc_active, GC_unregister_my_thread, pthread_join,
pthread_detach, GC_register_my_thread, GC_inner_start_routine,
pthread_create): Likewise.
* reclaim.c (GC_print_all_errors): Likewise.
* win32_threads.c (GC_is_thread_tsd_valid, GC_register_my_thread,
GC_unregister_my_thread, GC_do_blocking_inner,
GC_call_with_gc_active, GC_lookup_pthread, GC_pthread_join,
GC_pthread_start_inner, GC_thread_exit_proc, GC_pthread_detach,
GC_init_parallel): Likewise.

* doc/README.darwin: Update.

* CMakeLists.txt: Adjust INCLUDE_DIRECTORIES and SRC (to make it
usable on Mac OS X).
* doc/README.cmake: Update.

* CMakeLists.txt: New file (adding CMake support).
* tests/CMakeLists.txt: Likewise.
* doc/README.cmake: Likewise.

* configure.ac (darwin): Don't define HAS_PPC_THREAD_STATE...
macros.
* include/private/gc_priv.h (THREAD_FLD): Recognize
__DARWIN_UNIX03 instead of HAS_PPC_THREAD_STATE... macros.

* pthread_support.c: Include <sys/param.h> and <sys/sysctl.h> for
OpenBSD.
* pthread_support.c (get_ncpu): Define also for Darwin, NetBSD and
OpenBSD.
* pthread_support.c (GC_thr_init): Use get_ncpu() for Darwin,
NetBSD and OpenBSD.

* mallocx.c (GC_generic_malloc_many, GC_malloc_many): Define even
if THREADS is undefined.
* include/gc.h (GC_malloc_many): Update the comment.

* include/gc_cpp.h (GC_PLACEMENT_DELETE): Define for Embarcadero
(formerly known as Borland) C++ compiler v6.21+.
* include/gc_cpp.h (GC_NO_OPERATOR_NEW_ARRAY): Define for ancient
VC++ compilers.

* win32_threads.c (GC_register_my_thread_inner,
GC_pthread_start_inner): Undo the previous commit changes for
the thread flags and DETACHED state (since the state is only
tested in GC_thread_exit_proc).

* include/gc.h (GC_unregister_my_thread): Fix a typo; update the
comment.
* pthread_support.c (GC_delete_thread): Allow to delete the main
thread (don't call GC_INTERNAL_FREE for it); update the comment.
* win32_threads.c (GC_delete_thread): Likewise.
* pthread_support.c (GC_unregister_my_thread): Add an assertion
for FINISHED flag is unset.
* tests/test.c (check_heap_stats): Test the main thread
unregistering (only if THREADS).
* win32_threads.c (GC_register_my_thread_inner): Set flags to
DETACHED (only if GC_PTHREADS).
* win32_threads.c (GC_unregister_my_thread): Add FIXME (for
GC_wait_for_gc_completion).
* win32_threads.c (GC_pthread_start_inner): Clear flags detached
state if needed; set pthread_id and flags while holding the lock.

* include/private/gc_priv.h (SIG_SUSPEND): Don't define for
OpenBSD and Darwin.

* include/gc.h: Recognize _M_X64 (as an alias for _AMD64_).

* test.c (main, WinMain): Consistently don't invoke
GC_enable_incremental() if MAKE_BACKGRAPH is defined, but
do invoke it even if parallel marking is enabled.

* tests/test.c (reverse_test): Comment out a check for MSWIN32
(when determing BIG value) assuming outdated win32S.
* tests/test.c (reverse_test): Rename to reverse_test_inner;
change the declaration (to be of GC_fn_type); call itself thru
GC_call_with_gc_active() if the argument is zero.
* tests/test.c (reverse_test): New function added calling
reverse_test_inner thru GC_do_blocking (to test GC_do_blocking and
GC_call_with_gc_active).

* doc/README.macros (IGNORE_DYNAMIC_LOADING, PLATFORM_ANDROID):
Document.
* dyn_load.c: Don't include <elf.h> if PLATFORM_ANDROID.
* dyn_load.c: Include bionic <linker.h> (instead of <link.h>) if
PLATFORM_ANDROID.
* include/private/gcconfig.h (LINUX): Define also if
PLATFORM_ANDROID (for the windows-based toolkit).
* include/private/gcconfig.h (SEARCH_FOR_DATA_START): Explicitly
define for Android/x86 platform.
* include/private/gcconfig.h (IGNORE_DYNAMIC_LOADING): Recognize
new macro (undefine DYNAMIC_LOADING in this case).
* include/private/gcconfig.h (CANCEL_SAFE): Don't define if
PLATFORM_ANDROID.
* include/private/gcconfig.h (IF_CANCEL): Fix definition for the
explicitly defined CANCEL_SAFE.

* allchblk.c (GC_allochblk_nth): Don't call GC_remove_protection()
if GC_DISABLE_INCREMENTAL.
* reclaim.c (GC_reclaim_generic): Likewise.
* checksums.c (GC_page_was_ever_dirty): Add prototype.
* include/private/gc_locks.h (GC_mark_lock_holder): Don't declare
unless PARALLEL_MARK.
* include/private/gc_priv.h (GC_dirty_maintained,
GC_page_was_dirty, GC_remove_protection, GC_dirty_init): Don't
declare if GC_DISABLE_INCREMENTAL.
* include/private/gc_priv.h (GC_print_finalization_stats): Don't
declare if SMALL_CONFIG.
* include/private/gcconfig.h (CHECKSUMS): Explicitly undefine if
GC_DISABLE_INCREMENTAL (since nothing to check).
* include/private/gcconfig.h (DEFAULT_VDB): Don't define if
GC_DISABLE_INCREMENTAL.
* os_dep.c (GC_dirty_maintained): Likewise.
* mark.c (GC_initiate_gc): Don't call GC_read_dirty() if
GC_DISABLE_INCREMENTAL.
* os_dep.c (GC_gww_page_was_ever_dirty, GC_page_was_ever_dirty):
Uncomment; define only if CHECKSUMS.

* darwin_stop_world.c (GC_push_all_stacks): Fix a bug (call
GC_push_all_stack() instead of GC_push_all_stack_frames()).
* include/private/gc_priv.h (GC_push_all_stack_frames,
GC_push_all_register_frames): Rename to
GC_push_all_stack_sections and GC_push_all_register_sections,
respectively.
* mark_rts.c (GC_push_all_stack_frames,
GC_push_all_register_frames, GC_push_all_stack_part_eager_frames,
GC_push_current_stack): Likewise.
* pthread_stop_world.c (GC_push_all_stacks): Likewise.
* win32_threads.c (GC_push_stack_for): Likewise.
* misc.c (GC_call_with_gc_active): Rename "frame" local variable
to "stacksect".
* pthread_support.c (GC_call_with_gc_active): Likewise.
* win32_threads.c (GC_call_with_gc_active): Likewise.
* pthread_support.c (GC_call_with_gc_active): Update FIXME for
Darwin.
* win32_threads.c (GC_Thread_Rep): Update the comment for
traced_stack_sect.

* darwin_stop_world.c (GC_push_all_stacks): Rename
activation_frame to traced_stack_sect.
* include/private/gc_priv.h (GC_push_all_stack_frames,
GC_push_all_register_frames): Likewise.
* include/private/pthread_support.h (GC_Thread_Rep): Likewise.
* mark_rts.c (GC_push_all_register_frames,
GC_push_all_stack_frames, GC_push_all_stack_part_eager_frames,
GC_push_current_stack): Likewise.
* pthread_stop_world.c (GC_push_all_stacks): Likewise.
* pthread_support.c (GC_call_with_gc_active): Likewise.
* win32_threads.c (GC_Thread_Rep, GC_call_with_gc_active,
GC_push_stack_for): Likewise.
* include/private/gc_priv.h (GC_activation_frame_s): Rename to
GC_traced_stack_sect_s.
* include/private/gc_priv.h (GC_activation_frame): Rename to
GC_traced_stack_sect.
* misc.c (GC_activation_frame, GC_call_with_gc_active): Likewise.
* doc/README.macros (UNICODE): Document.

* doc/README.macros (GC_READ_ENV_FILE): Document (new macro).
* include/private/gc_priv.h (GETENV): Recognize GC_READ_ENV_FILE;
declare and use GC_envfile_getenv().
* misc.c (GC_envfile_content, GC_envfile_length): New static
variable (only if GC_READ_ENV_FILE).
* misc.c (GC_ENVFILE_MAXLEN): New macro (used in GC_envfile_init).
* misc.c (GC_envfile_init, GC_envfile_getenv): New function (only
if GC_READ_ENV_FILE).
* misc.c (GC_init): Call GC_envfile_init() (before using GETENV)
if GC_READ_ENV_FILE.
* misc.c (GC_init): Move GC_setpagesize() and GC_init_win32()
calls to be just before GC_envfile_init() one (since the latter
uses GET_MEM).
* misc.c (GC_abort): use ExitProcess() (instead of DebugBreak) for
WinCE if NO_DEBUGGING; add a comment for DebugBreak() (for WinCE).
* mark_rts.c (GC_add_roots_inner): Remove redundant trailing '\n'
from the ABORT message.
* misc.c (GC_init): Likewise.
* os_dep.c (GC_get_main_stack_base, GC_register_data_segments):
Likewise.
* pthread_stop_world.c (GC_push_all_stacks): Likewise.
* pthread_support.c (GC_init_real_syms, start_mark_threads):
Likewise.

* win32_threads.c (GC_get_next_stack): Don't define for Cygwin
(since unused for now).

* dyn_load.c (HAVE_REGISTER_MAIN_STATIC_DATA): Don't define unless
GC_register_main_static_data() is defined.
* dyn_load.c (GC_register_dynamic_libraries): Define only if used
(if DYNAMIC_LOADING or PCR or Win32/CE).
* dyn_load.c (GC_register_main_static_data): Define the default
one only if DYNAMIC_LOADING.
* include/private/gc_priv.h (GC_register_dynamic_libraries):
Declare only if used (to prevent compiler warning).

* mark_rts.c (GC_approx_sp): Add a comment (for GCC).


== [7.2alpha4] 2009-12-01 ==

* configure.ac (AC_CONFIG_COMMANDS): Quote srcdir value.

* include/gc.h (GC_get_suspend_signal): New function declaration.
* misc.c (GC_get_suspend_signal): New API function (only if
THREADS).

* alloc.c (min_bytes_allocd): Multiply GC_free_space_divisor by
two if GC_incremental (instead of TRUE_INCREMENTAL).

* sparc_mach_dep.S (GC_push_regs): Remove the reference.

* os_dep.c (SIZE_T, PULONG_PTR): Remove.
* os_dep.c (ULONG_PTR): Replace with GC_ULONG_PTR (defined as GC
"word"); add the comment.
* os_dep.c (GetWriteWatch_type, detect_GetWriteWatch,
GC_gww_read_dirty): Prefix ULONG_PTR with "GC_".

* win32_threads.c (THREAD_TABLE_SZ): Change back to a power-of-two
const value (for speed).
* win32_threads.c (THREAD_TABLE_INDEX): New macro.
* win32_threads.c (GC_new_thread, GC_lookup_thread_inner,
GC_delete_gc_thread, GC_delete_thread, GC_lookup_pthread): Use
THREAD_TABLE_INDEX instead of THREAD_TABLE_SZ.
* win32_threads.c (PTHREAD_MAP_HASH): Rename to PTHREAD_MAP_INDEX.

* win32_threads.c (THREAD_TABLE_SZ): Make the const value prime.

* backgraph.c: Remove apostrophe char from "#error".

* doc/README.macros (GC_DISABLE_INCREMENTAL): Document.
* include/private/gcconfig.h (GC_DISABLE_INCREMENTAL): Recognize
new macro; implicitly define it if SMALL_CONFIG.
* alloc.c (GC_incremental, GC_timeout_stop_func): Check for
GC_DISABLE_INCREMENTAL instead of SMALL_CONFIG.
* include/private/gc_priv.h (GC_incremental, TRUE_INCREMENTAL,
GC_push_conditional): Likewise.
* mark.c (GC_push_next_marked_dirty, GC_push_selected,
GC_push_conditional, GC_block_was_dirty): Likewise.
* misc.c (GC_enable_incremental): Likewise.
* misc.c (GC_init): Likewise.

* dyn_load.c (WIN32_LEAN_AND_MEAN): Guard with ifndef.
* misc.c (WIN32_LEAN_AND_MEAN): Likewise.
* os_dep.c (WIN32_LEAN_AND_MEAN): Likewise.
* allchblk.c (GC_allochblk_nth): Fix a minor typo (don't/doesn't)
in a comment.
* backgraph.c: Likewise.
* dyn_load.c (GC_register_dynamic_libraries): Likewise.
* extra/threadlibs.c (main): Likewise.
* pthread_support.c (pthread_join): Likewise.
* tests/test.c (main): Likewise.

* mach_dep.c (GC_push_regs): Remove STATIC (just to catch
a duplicate symbol definition linker error).
* misc.c (GC_clear_stack_inner): Likewise.
* sparc_mach_dep.S (GC_push_regs): Comment out the reference.

* include/private/gc_priv.h (GC_write_disabled): New variable
declaration (only if GC_ASSERTIONS and Win32 threads).
* misc.c (GC_write): Add assertion for GC_write_disabled value is
not on (only if THREADS).
* win32_threads.c (GC_write_disabled): New variable (only if
GC_ASSERTIONS and not Cygwin).
* win32_threads.c (GC_stop_world): Set and clear GC_write_disabled
(while holding GC_write_cs).

* win32_threads.c (GC_please_stop): If DllMain-based thread
registration is not compiled in then define GC_please_stop as
a non-volatile variable for assertion only.
* win32_threads.c (GC_stop_world): Set and clear only if defined.
* win32_threads.c (GC_stop_world): Add the comment for GC_printf()
usage (while holding GC_write_cs).
* win32_threads.c (GC_delete_gc_thread): Likewise.
* os_dep.c (GC_remove_protection): Likewise.

* pthread_support.c (GC_inner_start_routine): Join 3 sequential
GC_printf() calls into a single one (for DEBUG_THREADS).

* include/private/gc_priv.h (GC_total_stacksize): New variable
declaration (only if THREADS).
* alloc.c (GC_total_stacksize): New variable (only if THREADS).
* alloc.c (min_bytes_allocd): Calculate stack_size using
GC_stackbottom only in the single-threaded case; otherwise use
GC_total_stacksize; print GC_total_stacksize value if
DEBUG_THREADS.
* darwin_stop_world.c (GC_push_all_stacks): Use "%p" printf type
specifier for lo/hi values (instead of "%lx").
* darwin_stop_world.c (GC_push_all_stacks): Use
GC_push_all_stack_frames() instead of GC_push_all_stack().
* darwin_stop_world.c (GC_push_all_stacks): Recalculate
GC_total_stacksize value.
* pthread_stop_world.c (GC_push_all_stacks): Likewise.
* win32_threads.c (GC_push_all_stacks): Likewise.
* win32_threads.c (GC_push_stack_for): Pass "me" argument; return
stack size; don't check for non-zero value of thread->stack_base.
* win32_threads.c (GC_push_all_stacks): Don't call
GC_push_stack_for() and don't check for "t->id == me" if
thread->stack_base is zero.

* dyn_load.c (GC_dump_meminfo): Prefix "%lx" printf type specifier
with "0x".
* os_dep.c (PROTECT): Likewise.
* win32_threads.c (GC_mark_thread_local_free_lists): Cast p->id to
int (to match printf type specifier).

* tests/test.c (check_heap_stats): Take into account the unmapped
memory size when checking for "Unexpected heap growth"; remove
FIXME.

* alloc.c: Revert last change.

* include/private/gcconfig.h (STACKBOTTOM): Add a presence check
for eCos/NOSYS.
* misc.c (GC_write): Comment out _Jv_diag_write() call (since no
longer defined in GCJ).

* os_dep.c (brk): Rename to ecos_gc_brk.

* alloc.c (min_bytes_allocd): Use GC_stackbottom value to compute
stack_size even if THREADS.
* doc/README.macros (DEBUG_THREADS): Document.
* pthread_support.c (DEBUG_THREADS): Remove the commented out
definition.
* win32_threads.c (DEBUG_WIN32_THREADS): Remove duplicate
definition.
* win32_threads.c: Include errno.h (except for WinCE).
* win32_threads.c (GC_win32_start_inner): Copy "start" and "param"
to local variables, and free "arg" parameter before "start"
invocation.
* win32_threads.c (GC_beginthreadex): Set errno to EAGAIN on error
(instead of calling SetLastError(ERROR_NOT_ENOUGH_MEMORY)).
* win32_threads.c (GC_beginthreadex): Return 0 on error (instead
of -1).

* darwin_stop_world.c (GC_darwin_register_mach_handler_thread):
Use GC_INNER for the function definition.
* include/private/darwin_stop_world.h
(GC_darwin_register_mach_handler_thread): Remove the prototype.
* os_dep.c (GC_darwin_register_mach_handler_thread): Use GC_INNER
for the function prototype.
* include/private/gc_priv.h (NDEBUG): Explicitly define if
NO_DEBUGGING and not GC_ASSERTIONS (before the standard headers
inclusion).

* include/private/gcconfig.h: Move DebugBreak() workaround (for
x86mingw32ce toolchain) to gc_priv.h (after windows.h inclusion).

* allchblk.c (GC_unmap_old, GC_merge_unmapped, GC_allochblk,
GC_freehblk): Use GC_INNER for the function definition.
* alloc.c (GC_never_stop_func, GC_should_collect,
GC_try_to_collect_inner, GC_collect_a_little_inner,
GC_set_fl_marks, GC_add_to_our_memory, GC_add_to_heap,
GC_expand_hp_inner, GC_collect_or_expand, GC_allocobj): Likewise.
* backgraph.c (GC_build_back_graph, GC_traverse_back_graph):
Likewise.
* blacklst.c (GC_default_print_heap_obj_proc, GC_bl_init,
GC_promote_black_lists, GC_unpromote_black_lists,
GC_add_to_black_list_normal, GC_add_to_black_list_stack,
GC_is_black_listed): Likewise.
* darwin_stop_world.c (GC_push_all_stacks, GC_push_all_stacks,
GC_stop_init, GC_stop_world, GC_start_world): Likewise.
* dbg_mlc.c (GC_has_other_debug_info, GC_store_back_pointer,
GC_marked_for_finalization, GC_generate_random_backtrace_no_gc,
GC_store_debug_info, GC_start_debugging,
GC_debug_generic_malloc_inner,
GC_debug_generic_malloc_inner_ignore_off_page,
GC_debug_malloc_uncollectable, GC_debug_free_inner): Likewise.
* dyn_load.c (GC_register_dynamic_libraries,
GC_register_main_static_data, GC_init_dyld): Likewise.
* finalize.c (GC_push_finalizer_structures, GC_finalize,
GC_notify_or_invoke_finalizers, GC_print_finalization_stats):
Likewise.
* gcj_mlc.c (GC_core_gcj_malloc): Likewise.
* headers.c (GC_find_header, GC_header_cache_miss,
GC_scratch_alloc, GC_init_headers, GC_install_header,
GC_install_counts, GC_remove_header, GC_remove_counts,
GC_next_used_block, GC_prev_block): Likewise.
* mach_dep.c (GC_with_callee_saves_pushed): Likewise.
* malloc.c (GC_collect_or_expand, GC_alloc_large,
GC_generic_malloc_inner, GC_generic_malloc_inner_ignore_off_page,
GC_core_malloc_atomic, GC_core_malloc, GC_free_inner): Likewise.
* mallocx.c (GC_generic_malloc_ignore_off_page): Likewise.
* mark.c (GC_collection_in_progress, GC_clear_hdr_marks,
GC_set_hdr_marks, GC_set_mark_bit, GC_clear_mark_bit,
GC_clear_marks, GC_initiate_gc, GC_mark_some,
GC_mark_stack_empty, GC_invalidate_mark_state,
GC_signal_mark_stack_overflow, GC_mark_from, GC_help_marker,
GC_mark_init, GC_push_all, GC_push_conditional,
GC_mark_and_push_stack, GC_push_all_eager, GC_push_all_stack):
Likewise.
* mark_rts.c (GC_is_static_root, GC_roots_present, GC_approx_sp,
GC_exclude_static_roots_inner, GC_push_all_register_frames,
GC_push_all_stack_frames, GC_cond_register_dynamic_libraries,
GC_push_roots): Likewise.
* misc.c (GC_extend_size_map, GC_clear_stack, GC_err_write):
Likewise.
* new_hblk.c (GC_build_fl, GC_new_hblk): Likewise.
* obj_map.c (GC_register_displacement_inner, GC_add_map_entry,
GC_initialize_offsets): Likewise.
* os_dep.c (GC_get_maps, GC_parse_map_entry, GC_text_mapping,
GC_init_linux_data_start, GC_init_netbsd_elf, GC_setpagesize,
GC_set_and_save_fault_handler, GC_setup_temporary_fault_handler,
GC_reset_fault_handler, GC_get_register_stack_base, GC_init_win32,
GC_add_current_malloc_heap, GC_is_heap_base, GC_unmap, GC_remap,
GC_unmap_gap, GC_push_all_stacks, GC_gww_dirty_init,
GC_dirty_init, GC_read_dirty, GC_page_was_dirty,
GC_page_was_ever_dirty, GC_remove_protection,
GC_write_fault_handler, GC_mprotect_stop, GC_mprotect_resume,
GC_save_callers, GC_print_callers): Likewise.
* pthread_stop_world.c (GC_push_all_stacks, GC_stop_world,
GC_start_world, GC_stop_init): Likewise.
* pthread_support.c (GC_mark_thread_local_free_lists,
GC_lookup_thread, GC_reset_finalizer_nested,
GC_check_finalizer_nested, GC_segment_is_thread_stack,
GC_greatest_stack_base_below, GC_thr_init, GC_init_parallel,
GC_do_blocking_inner, GC_lock, GC_acquire_mark_lock,
GC_release_mark_lock, GC_wait_for_reclaim, GC_notify_all_builder,
GC_wait_marker, GC_notify_all_marker): Likewise.
* reclaim.c (GC_print_all_errors, GC_block_empty,
GC_reclaim_generic, GC_start_reclaim, GC_continue_reclaim,
GC_reclaim_all): Likewise.
* thread_local_alloc.c (GC_init_thread_local,
GC_destroy_thread_local, GC_mark_thread_local_fls_for): Likewise.
* win32_threads.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested, GC_do_blocking_inner, GC_stop_world,
GC_start_world, GC_push_all_stacks, GC_get_next_stack,
GC_acquire_mark_lock, GC_release_mark_lock, GC_wait_for_reclaim,
GC_notify_all_builder, GC_wait_marker, GC_notify_all_marker,
GC_thr_init, GC_init_parallel, GC_lock,
GC_mark_thread_local_free_lists): Likewise.
* alloc.c (GC_add_current_malloc_heap, GC_build_back_graph,
GC_traverse_back_graph): Use GC_INNER for the function prototype.
* darwin_stop_world.c (GC_mprotect_stop, GC_mprotect_resume):
Likewise.
* dbg_mlc.c (GC_default_print_heap_obj_proc): Likewise.
* dyn_load.c (GC_parse_map_entry, GC_get_maps,
GC_segment_is_thread_stack, GC_roots_present, GC_is_heap_base,
GC_get_next_stack): Likewise.
* finalize.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested): Likewise.
* gcj_mlc.c (GC_start_debugging): Likewise.
* include/private/dbg_mlc.h (GC_save_callers, GC_print_callers,
GC_has_other_debug_info, GC_store_debug_info): Likewise.
* include/private/gc_hdrs.h (GC_header_cache_miss): Likewise.
* include/private/gc_locks.h (GC_lock): Likewise.
* include/private/gc_pmark.h (GC_signal_mark_stack_overflow,
GC_mark_from): Likewise.
* include/private/pthread_support.h (GC_lookup_thread,
GC_stop_init): Likewise.
* include/private/thread_local_alloc.h (GC_init_thread_local,
GC_destroy_thread_local, GC_mark_thread_local_fls_for): Likewise.
* malloc.c (GC_extend_size_map, GC_text_mapping): Likewise.
* mark.c (GC_page_was_ever_dirty): Likewise.
* mark_rts.c (GC_mark_thread_local_free_lists): Likewise.
* misc.c (GC_register_main_static_data, GC_init_win32,
GC_setpagesize, GC_init_linux_data_start,
GC_set_and_save_fault_handler, GC_init_dyld, GC_init_netbsd_elf,
GC_do_blocking_inner): Likewise.
* os_dep.c (GC_greatest_stack_base_below): Likewise.
* win32_threads.c (GC_write_fault_handler, GC_gww_dirty_init):
Likewise.
* include/private/gc_priv.h: Likewise.
* include/private/gc_priv.h (GC_INNER): Update the comment.
* doc/README.macros (GC_DLL): Update.

* alloc.c (GC_collection_in_progress): Move the prototype to
gc_priv.h.
* gc_dlopen.c (GC_collection_in_progress): Likewise.
* pthread_support.c (GC_collection_in_progress): Likewise.
* misc.c (GC_init_parallel): Likewise.
* pthread_support.c (GC_init_parallel): Likewise.
* win32_threads.c (GC_init_parallel): Likewise.
* darwin_stop_world.c (GC_thr_init): Likewise.
* misc.c (GC_thr_init): Likewise.
* pthread_stop_world.c (GC_thr_init): Likewise.
* pthread_support.c (GC_thr_init): Likewise.
* blacklst.c (GC_clear_bl, GC_copy_bl,
GC_number_stack_black_listed): Make STATIC.
* dbg_mlc.c (GC_print_obj, GC_make_closure,
GC_debug_invoke_finalizer): Likewise.
* malloc.c (GC_alloc_large_and_clear): Likewise.
* mark.c (GC_push_selected, GC_push_marked1, GC_push_marked2,
GC_push_marked4, GC_push_marked, GC_push_next_marked,
GC_push_next_marked_dirty, GC_push_next_marked_uncollectable):
Likewise.
* misc.c (GC_clear_stack_inner): Likewise.
* os_dep.c (GC_repeat_read, GC_default_push_other_roots): Likewise.
* darwin_stop_world.c (FindTopOfStack): Make static; define only
if not DARWIN_DONT_PARSE_STACK.
* dbg_mlc.c (GC_debug_free_inner): Define only if DBG_HDRS_ALL.
* dyn_load.c (GC_repeat_read): Remove unused prototype.
* include/private/gc_pmark.h (GC_find_start): Likewise.
* misc.c (GC_read, GC_register_finalizer_no_order): Likewise.
* dyn_load.c (GC_segment_is_thread_stack): Add prototype (only if
THREADS).
* dyn_load.c (GC_register_main_static_data): Define only if
DYNAMIC_LOADING.
* finalize.c (GC_enqueue_all_finalizers): Remove unnecessary tail
"return" statement.
* gc_dlopen.c (GC_SOLARIS_THREADS): Don't recognize (since implies
GC_PTHREADS).
* include/gc.h: Fix a typo.
* include/gc_inline.h (GC_ASSERT): Define (if not defined) since
the header is public.
* include/gc_inline.h (GC_generic_malloc_many): New public
function declaration.
* mallocx.c (GC_generic_malloc_many): Make public.
* include/private/gc_priv.h (GC_INNER): Use visibility attribute
(if available).
* include/private/gc_priv.h (GC_EXTERN): Define using GC_INNER.
* include/private/gc_priv.h: Include atomic_ops.h if THREADS and
MPROTECT_VDB.
* os_dep.c: Don't include atomic_ops.h
* win32_threads.c: Likewise.
* include/private/gc_priv.h (GC_push_selected, GC_push_regs,
GC_push_marked, GC_number_stack_black_listed,
GC_alloc_large_and_clear, GC_reclaim_or_delete_all,
GC_generic_malloc_many, GC_make_closure,
GC_debug_invoke_finalizer, GC_print_obj, GC_page_was_ever_dirty):
Remove the prototype.
* mark.c (GC_page_was_ever_dirty): Add prototype (only if
PROC_VDB).
* include/private/gc_priv.h (GC_push_next_marked_dirty,
GC_push_next_marked, GC_push_next_marked_uncollectable): Move
the prototype to mark.c.
* include/private/gc_priv.h (GC_is_static_root): Declare only if
not THREADS.
* include/private/gc_priv.h (GC_free_inner): Declare only if
THREADS.
* include/private/gc_priv.h (GC_debug_free_inner): Declare only if
THREADS and DBG_HDRS_ALL.
* include/private/gc_priv.h (GC_markers): Declare GC_markers only
if PARALLEL_MARK.
* include/private/gc_priv.h (GC_register_main_static_data): Move
the prototype to misc.c.
* mach_dep.c (GC_push_regs): Make STATIC; define only along with
HAVE_PUSH_REGS definition.
* mach_dep.c (GC_clear_stack_inner): Replace K&R-style function
definition with the ANSI C one.
* mark.c (GC_started_thread_while_stopped): Declared only if not
GNU C.
* win32_threads.c (GC_started_thread_while_stopped): Don't define
if GNU C.
* mark.c (GC_mark_from): Avoid unbalanced brackets in
#if-#else-#endif blocks.
* mark_rts.c (GC_is_static_root): Define only if not THREADS.
* os_dep.c (GC_get_stack_base): Make public (for OpenBSD).
* os_dep.c (GC_page_was_ever_dirty): Comment out the function
except for PROC_VDB.
* tests/test.c (main): Don't reference GC_print_obj,
GC_make_closure, GC_debug_invoke_finalizer,
GC_page_was_ever_dirty, GC_is_fresh (in GC_noop).
* thread_local_alloc.c: Don't include "gc_inline.h".
* win32_threads.c (GC_write_fault_handler): Declare only if
MPROTECT_VDB.

* allchblk.c (DEBUG): Remove macro (since unused).
* allchblk.c: Include private/gc_priv.h before other includes and
definitions.
* alloc.c: Likewise.
* gc_dlopen.c: Likewise.
* headers.c: Likewise.
* mallocx.c: Likewise.
* mark_rts.c: Likewise.
* new_hblk.c: Likewise.
* reclaim.c: Likewise.
* mark.c: Include private/gc_pmark.h before other includes.
* misc.c: Likewise.
* dyn_load.c (_GNU_SOURCE): Move the definition to gc_priv.h.
* pthread_support.c (_USING_POSIX4A_DRAFT10): Likewise.
* pthread_support.c (_POSIX4A_DRAFT10_SOURCE): Remove (since
already defined in gc_config_macros.h).
* dyn_load.c (GC_init_dyld): Remove parameter cast for
_dyld_register_func_for_add_image() and
_dyld_register_func_for_remove_image(); add the comment about
possible warnings; add FIXME for the deprecated
_dyld_bind_fully_image_containing_address().
* include/private/gc_priv.h: Include gc.h before the standard
headers inclusion.
* tests/test.c: Likewise.
* include/private/gcconfig.h (DebugBreak): Update the comment.
* typd_mlc.c (ED_INITIAL_SIZE): Remove ';'.

* configure.ac (openbsd): Define GC_OPENBSD_THREADS.
* configure.ac: Add AM_CONDITIONAL(OPENBSD_THREADS).
* configure.ac: Add sparc-openbsd case.
* doc/README.macros (GC_NETBSD_THREADS, GC_OPENBSD_THREADS):
Document.
* tests/test.c (main): Handle OpenBSD case.
* include/private/pthread_stop_world.h: Likewise.
* extra/threadlibs.c (main): Replace K&R-style function definition
with the ANSI C one.
* extra/threadlibs.c (main): Handle GC_OPENBSD_THREADS case.
* dyn_load.c (OPENBSD): Recognize (similar to NETBSD).
* include/gc_config_macros.h (GC_SOLARIS_THREADS): Recognize;
define it for OpenBSD.
* include/gc_pthread_redirects.h (GC_pthread_sigmask,
pthread_sigmask): Don't declare and redefine for OpenBSD.
* include/private/gcconfig.h: Handle OpenBSD (on arm, sh, i386,
amd64, powerpc).
* mach_dep.c (NO_GETCONTEXT): Likewise.
* include/private/pthread_stop_world.h (thread_stop_info): Don't
define last_stop_count field if OpenBSD.
* misc.c (GC_init_dyld): Add declaration (if NetBSD).
* misc.c (GC_init): Don't call GC_init_netbsd_elf() for OpenBSD.
* os_dep.c (GC_init_netbsd_elf): Don't define for OpenBSD.
* os_dep.c (old_segv_act, GC_jmp_buf_openbsd): New static variable
(only if OpenBSD).
* os_dep.c (GC_fault_handler_openbsd, GC_find_limit_openbsd,
GC_skip_hole_openbsd): New static function (only if OpenBSD).
* os_dep.c (GC_get_stack_base, GC_get_main_stack_base,
GC_register_data_segments): Define specially for OpenBSD case.
* os_dep.c (GC_fault_handler_lock): Initialize to
AO_TS_INITIALIZER (instead of 0).
* pthread_support.c (GC_allocate_lock): Likewise.
* pthread_stop_world.c (NSIG, GC_print_sig_mask,
GC_remove_allowed_signals, suspend_handler_mask, GC_stop_count,
GC_world_is_stopped, GC_retry_signals, SIG_THR_RESTART,
GC_suspend_ack_sem, GC_suspend_handler_inner, GC_suspend_handler,
GC_restart_handler): Don't define and use if OpenBSD.
* pthread_stop_world.c (GC_suspend_all, GC_stop_world,
GC_start_world): Handle OpenBSD case.
* pthread_stop_world.c (GC_stop_init): Define as empty if OpenBSD.
* pthread_support.c (pthread_sigmask): Don't undefine the macro and
don't define the wrapper function if OpenBSD.
* pthread_support.c (GC_thr_init): Handle OpenBSD case.

* dyn_load.c: Move the inclusion of private/gc_priv.h below
definition of a feature macro (_GNU_SOURCE).

* include/gc.h (REVEAL_POINTER): Remove redundant parentheses.
* include/gc.h (GC_HIDE_POINTER, GC_REVEAL_POINTER): New macros
(only if GC_I_HIDE_POINTERS).
* backgraph.c (GET_OH_BG_PTR): Prefix REVEAL_POINTER() with "GC_".
* dbg_mlc.c (GC_get_back_ptr_info): Likewise.
* finalize.c (GC_grow_table, GC_dump_finalization, GC_finalize,
GC_enqueue_all_finalizers): Likewise.
* backgraph.c (SET_OH_BG_PTR): Prefix HIDE_POINTER() with "GC_".
* finalize.c (GC_general_register_disappearing_link,
GC_unregister_disappearing_link, GC_register_finalizer_inner,
GC_finalize): Likewise.
* include/private/dbg_mlc.h (HIDE_BACK_PTR): Likewise.
* include/private/dbg_mlc.h (GC_I_HIDE_POINTERS): Define instead
of I_HIDE_POINTERS.
* include/private/gc_priv.h (GC_I_HIDE_POINTERS): Likewise.
* include/gc.h (_GC_H): Strip leading underscore.
* include/gc_backptr.h (_GC_H): Likewise.
* include/gc_gcj.h (_GC_H): Likewise.
* include/gc_mark.h (_GC_H): Likewise.
* include/gc_typed.h (_GC_TYPED_H, _GC_H): Likewise.
* include/javaxfc.h (_GC_H): Likewise.
* include/new_gc_alloc.h (__GC_SPECIALIZE): Likewise.
* include/private/dbg_mlc.h (_GC_H): Likewise.
* include/private/gc_priv.h (_GC_H): Likewise.

* gc_cpp.cc: Include "gc_cpp.h" instead of <gc_cpp.h>.

* include/private/gc_priv.h (GC_INNER): New macro (for GC-scope
variable definitions).
* include/private/gc_priv.h (GC_EXTERN): Update the comment.
* allchblk.c (GC_unmap_threshold): Define as GC_INNER.
* alloc.c (GC_incremental, GC_world_stopped, GC_n_heap_sects,
GC_n_memory, GC_fail_count): Likewise.
* blacklst.c (GC_black_list_spacing, GC_print_heap_obj): Likewise.
* gcj_mlc.c (GC_gcj_malloc_initialized, GC_gcjobjfreelist): Likewise.
* mach_dep.c (GC_save_regs_ret_val): Likewise.
* mark.c (GC_n_mark_procs, GC_obj_kinds, GC_n_kinds,
GC_mark_stack, GC_mark_stack_limit, GC_mark_stack_size,
GC_mark_stack_top, GC_mark_state, GC_mark_stack_too_small,
GC_mark_no, GC_markers): Likewise.
* mark_rts.c (GC_root_size, GC_push_typed_structures): Likewise.
* misc.c (GC_allocate_ml, GC_debugging_started, GC_check_heap,
GC_print_all_smashed, GC_print_back_height, GC_dump_regularly,
GC_backtraces, GC_force_unmap_on_gcollect,
GC_large_alloc_warn_interval, GC_is_initialized, GC_write_cs,
GC_current_warn_proc, GC_blocked_sp, GC_activation_frame): Likewise.
* os_dep.c (GC_page_size, GC_dont_query_stack_min,
GC_no_win32_dlls, GC_wnt, GC_sysinfo, GC_push_other_roots,
GC_dirty_maintained, GC_fault_handler_lock): Likewise.
* pthread_support.c (GC_allocate_ml, GC_lock_holder,
GC_need_to_lock, GC_thr_initialized, GC_threads,
GC_in_thread_creation, GC_collecting, GC_allocate_lock,
GC_mark_lock_holder): Likewise.
* reclaim.c (GC_bytes_found, GC_fl_builder_count, GC_have_errors):
Likewise.
* win32_threads.c (GC_allocate_ml, GC_lock_holder,
GC_need_to_lock, GC_mark_lock_holder, GC_collecting): Likewise.
* extra/gc.c (GC_INNER, GC_EXTERN): Define as STATIC.
* mach_dep.c (GC_with_callee_saves_pushed): Remove redundant {}.

* include/private/gc_priv.h (GC_bytes_allocd, GC_objfreelist,
GC_aobjfreelist): Replace GC_EXTERN to extern for SEPARATE_GLOBALS
case (since they are not defined inside GC at present).
* include/private/gc_priv.h (GC_objects_are_marked): Remove the
declaration (since made static).
* mark.c (GC_objects_are_marked): Define as STATIC.
* win32_threads.c (GC_thr_initialized, GC_in_thread_creation):
Likewise.
* mark.c (GC_N_KINDS_INITIAL_VALUE): New macro (defined and used
to initialize GC_n_kinds).
* win32_threads.c (start_mark_threads): Adjust the comment.

* alloc.c (GC_notify_full_gc): Use GC_INLINE for a tiny static
function.
* backgraph.c (pop_in_progress, GC_apply_to_each_object): Likewise.
* mark_rts.c (add_roots_to_index): Likewise.

* extra/gc.c: New file.
* Makefile.am (EXTRA_DIST): Add "extra/gc.c".

* misc.c (GC_log): Remove the declaration; move the definition (to
the place where it is used); make STATIC.
* misc.c (GC_init): Use GC_err_printf() instead of GC_log_printf()
to print open log failure.
* misc.c (GC_write): Don't abort on open log failure if the GC is
compiled with GC_PRINT_VERBOSE_STATS (useful for WinCE).

* include/private/gcconfig.h (USE_MMAP): Guard with ifndef.

* allchblk.c (GC_fail_count, GC_large_alloc_warn_interval): Move
the variable declaration to gc_priv.h.
* alloc.c (GC_bytes_found, GC_unmap_threshold,
GC_force_unmap_on_gcollect): Likewise.
* dyn_load.c (GC_no_win32_dlls, GC_wnt): Likewise.
* finalize.c (GC_fail_count): Likewise.
* include/private/gc_locks.h (GC_allocate_ml, GC_lock_holder,
GC_collecting, GC_mark_lock_holder, GC_need_to_lock): Likewise.
* include/private/gc_pmark.h (GC_n_mark_procs, GC_mark_stack_size,
GC_mark_stack_limit, GC_mark_stack_top, GC_mark_stack,
GC_mark_stack_too_small, GC_mark_state): Likewise.
* include/private/pthread_support.h (GC_threads,
GC_thr_initialized, GC_in_thread_creation): Likewise.
* mallocx.c (GC_bytes_found): Likewise.
* mark_rts.c (GC_save_regs_ret_val, GC_world_stopped): Likewise.
* misc.c (GC_unmap_threshold): Likewise.
* os_dep.c (GC_unmap_threshold): Likewise.
* pthread_support.c (GC_markers): Likewise.
* thread_local_alloc.c (GC_gcjobjfreelist,
GC_gcj_malloc_initialized, GC_gcj_kind): Likewise.
* win32_threads.c (GC_fault_handler_lock, GC_write_cs,
GC_dont_query_stack_min, GC_markers, GC_wnt): Likewise.
* include/private/gc_priv.h (GC_EXTERN): New macro (used mostly as
a tag for now); defined after "gcconfig.h" inclusion.
* include/private/gc_priv.h: Use GC_EXTERN instead of "extern"
keyword for most global variables.
* alloc.c (GC_copyright): Add the comment about the symbol
visibility.
* finalize.c (GC_fo_entries): Likewise.
* include/private/gc_priv.h (GC_print_stats): Likewise.
* misc.c (GC_quiet): Likewise.
* mallocx.c (GC_bytes_allocd_tmp): Make the volatile variable
STATIC.
* pthread_support.c (GC_threads): Add explicit zero initializer
(to make the variable definition differ from the declaration).

* backgraph.c (GC_quiet): Remove the declaration (not needed
anymore since gc_priv.h is always included).
* checksums.c (GC_quiet): Likewise.
* gcj_mlc.c (GC_quiet): Likewise.
* headers.c (GC_hdr_cache_hits, GC_hdr_cache_misses): Add the
comment.
* include/private/gc_hdrs.h (GC_hdr_cache_hits,
GC_hdr_cache_misses): Likewise.
* mark.c (GC_first_nonempty): Make the volatile variable STATIC.
* pthread_stop_world.c (GC_stop_count, GC_world_is_stopped):
Likewise.
* win32_threads.c (GC_please_stop, GC_max_thread_index,
GC_mark_mutex_waitcnt): Likewise.

* pthread_support.c (GC_USE_LD_WRAP): Fix a typo (swapped 'L' and
'D') in the name.

* gc_dlopen.c (GC_MUST_RESTORE_REDEFINED_DLOPEN): Define if dlopen
redirection is turned off; turn it on later when dlopen real
symbol is no longer needed (according to the comment and the same
as in dyn_load.c).
* gc_dlopen.c (WRAP_FUNC, REAL_FUNC): Rename to WRAP_DLFUNC and
REAL_DLFUNC, respectively (to have unique names since the
definitions may differ from that of the similar ones in
pthread_support.c).
* mark.c (source): Undefine the macro when no longer needed.
* os_dep.c (handler): Rename the type to GC_fault_handler_t (to
have the unique name across the project).
* os_dep.c (STAT_BUF_SIZE, STAT_READ); Guard with ifndef; add the
comment.
* pthread_support.c (STAT_BUF_SIZE, STAT_READ): Likewise.
* os_dep.c (sbrk): Undo sbrk() redirection (for ECOS) when no
longer needed.

* pthread_stop_world.c (pthread_sigmask): Undefine before using
in GC_print_sig_mask() (only if DEBUG_THREADS); add the comment.
* win32_threads.c (dlopen, _beginthread): Don't undefine (since
neither redirected nor used here).
* win32_threads.c (GC_Thread_Rep): Rename "table_management" to
"tm" for short; remove "tm_" prefix.
* win32_threads.c (in_use, next): Don't define the macros; use
tm.in_use and tm.next fields, respectively (to ease debugging).
* win32_threads.c (HASH): Rename to PTHREAD_MAP_HASH (to have
unique name across the project).

* include/private/gc_priv.h (I_HIDE_POINTERS): Define before gc.h
inclusion.
* include/private/gc_pmark.h (I_HIDE_POINTERS): Define if gc.h is
not included yet.
* finalize.c (I_HIDE_POINTERS): Don't define.
* include/private/dbg_mlc.h (I_HIDE_POINTERS): Likewise.
* misc.c (I_HIDE_POINTERS): Likewise.
* include/private/dbg_mlc.h (HIDE_POINTER, REVEAL_POINTER,
GC_hidden_pointer): Don't define if HIDE_POINTER is undefined.
* include/private/gc_pmark.h: Remove the comment about gc_priv.h
inclusion order.

* dyn_load.c: Include gc_priv.h before using configuration
information (MACOS).
* dyn_load.c (GC_must_restore_redefined_dlopen): Rename to
GC_MUST_RESTORE_REDEFINED_DLOPEN.

* backgraph.c (SET_OH_BG_PTR): Place outermost parenthesis
properly.
* darwin_stop_world.c: Replace "if DEBUG_THREADS" with
"ifdef DEBUG_THREADS".
* pthread_stop_world.c: Likewise.
* pthread_support.c: Likewise.
* include/gc_inline.h: Guard with GC_INLINE_H.

* alloc.c (GC_copyright): Define as const.
* alloc.c (GC_collect_at_heapsize): Replace "static" with "STATIC"
(since the name starts with "GC_" prefix).
* dbg_mlc.c (GC_describe_type_fns): Likewise.
* dyn_load.c (GC_FirstDLOpenedLinkMap,
GC_register_dynlib_callback, GC_dyld_sections,
GC_dyld_name_for_hdr, GC_dyld_image_add, GC_dyld_image_remove):
Likewise.
* malloc.c (GC_libpthread_start, GC_libpthread_end,
GC_libld_start, GC_libld_end): Likewise.
* mark_rts.c (GC_remove_root_at_pos, GC_rebuild_root_index):
Likewise.
* os_dep.c (GC_gww_read_dirty, GC_gww_page_was_dirty,
GC_gww_page_was_ever_dirty, GC_mprotect_thread_notify,
GC_mprotect_thread_reply, GC_mprotect_thread, GC_darwin_sigbus,
GC_forward_exception): Likewise.
* pthread_support.c (GC_syms_initialized): Likewise.
* typd_mlc.c (GC_push_typed_structures_proc): Likewise.
* win32_threads.c (GC_win32_dll_threads,
GC_register_my_thread_inner, GC_lookup_pthread, GC_get_stack_min,
GC_waitForSingleObjectInfinite): Likewise.
* darwin_stop_world.c (GC_use_mach_handler_thread,
GC_use_mach_handler_thread, GC_mach_threads_count): Replace
"static" with "STATIC" and add zero initializer.
* os_dep.c (GC_task_self, GC_ports, GC_mprotect_state,
GC_sigbus_count): Likewise.
* headers.c (free_hdr): Replace "static" with GC_INLINE.
* misc.c (GC_tmp): Rename static variable to fwrite_gc_res.
* os_dep.c (memory): Rename static variable to ecos_gc_memory.
* os_dep.c (async_set_pht_entry_from_index): Make static (for
MPROTECT_VDB case).
* pthread_support.c (GC_real_pthread_create,
GC_real_pthread_sigmask, GC_real_pthread_join,
GC_real_pthread_detach, GC_init_real_syms): Use REAL_FUNC() macro
for static GC_real_XXX symbols.
* win32_threads.c (GC_may_be_in_stack): Remove "GC_" prefix.

* alloc.c (GC_finish_collection): Replace getenv() with GETENV().
* dyn_load.c (GC_init_dyld): Likewise.
* os_dep.c (GC_print_callers): Likewise.
* dyn_load.c (GC_dyld_name_for_hdr): Cast _dyld_get_image_name()
result (since it's always of "struct mach_header" type).
* dyn_load.c (GC_init_dyld): Cast GC_dyld_image_add and
GC_dyld_image_remove (to always have the first argument of
"struct mach_header" pointer type).

* configure.ac: Add threads support for OpenBSD case (threads may
not work correctly for it).

* acinclude.m4: Rename to m4/gc_set_version.m4.
* m4/libtool.m4: Delete the file.
* m4/lt~obsolete.m4: Likewise.
* m4/ltoptions.m4: Likewise.
* m4/ltsugar.m4: Likewise.
* m4/ltversion.m4: Likewise.

* include/private/gcconfig.h: Define DebugBreak() as _exit(-1) for
x86mingw32ce toolchain to workaround the incorrect DebugBreak()
declaration in winbase.h (the workaround would turn into a no-op
when DebugBreak() will be defined as a macro in the toolchain).

* include/private/gcconfig.h: Recognize __i386__ if WinCE (for
x86mingw32ce toolchain).
* include/private/gcconfig.h (NO_GETENV): Don't define for CeGCC
toolchain (or if already defined).
* include/private/gcconfig.h (NO_GETENV_WIN32): New macro (always
defined for WinCE or if NO_GETENV is defined).
* misc.c (GC_CreateLogFile): Use NO_GETENV_WIN32 macro instead of
NO_GETENV one.

* configure.ac: Add AC_CONFIG_MACRO_DIR([m4]).
* Makefile.am: Add "ACLOCAL_AMFLAGS = -I m4".
* libtool.m4: Remove.
* m4/libtool.m4: New file (generated).
* m4/lt~obsolete.m4: Likewise.
* m4/ltoptions.m4: Likewise.
* m4/ltsugar.m4: Likewise.
* m4/ltversion.m4: Likewise.

* include/gc.h (GC_UNDERSCORE_STDCALL): Recognize new macro;
prefix GC_CreateThread and GC_ExitThread with '_' if defined.
* doc/README.macros (GC_UNDERSCORE_STDCALL): Document.

* alloc.c (GC_collect_or_expand): Add "retry" argument; add the
comments; don't use "default" stop_func on a retry if
GC_dont_expand.
* alloc.c (GC_allocobj): Pass "retry" argument to
GC_collect_or_expand().
* malloc.c (GC_alloc_large): Likewise.
* include/private/gc_priv.h (GC_collect_or_expand): Move the
declaration to malloc.c; add "retry" argument.

* alloc.c (GC_start_call_back): Move the variable definition from
misc.c.
* include/private/gc_priv.h (GC_start_call_back): Remove the
declaration.
* alloc.c (GC_notify_full_gc): Remove unnecessary cast of 0.
* alloc.c (GC_try_to_collect_inner): Also call stop_func at the
beginning of the function.
* include/gc.h (GC_try_to_collect): Refine the comment about
stop_func.

* alloc.c (GC_default_stop_func, GC_try_to_collect_general,
GC_gcollect): Add the comment.
* alloc.c (GC_try_to_collect_general): Move the assertion on
stop_func != 0 to GC_try_to_collect().
* alloc.c (GC_try_to_collect_general): If stop_func == 0 then use
GC_default_stop_func instead (holding the lock).
* alloc.c (GC_gcollect): Pass 0 as stop_func instead of
GC_default_stop_func (to prevent data races).

* Makefile.direct: Move "define arguments" documentation to
doc/README.macros; add reference to doc/README.macros.
* Makefile.dj: Change the documentation reference to
doc/README.macros.
* README.QUICK: Likewise.
* configure.ac: Likewise.
* allchblk.c: Remove unnecessary "-D" from the comment.
* doc/README.macros: Likewise.
* README.environment: Likewise.
* include/gc.h: Likewise.
* include/gc_inline.h: Likewise.
* include/private/gcconfig.h: Likewise.
* README.QUICK: Fix a typo.

* misc.c (GC_CreateLogFile): Use FILE_ATTRIBUTE_NORMAL for
CreateFile(); don't immediately flush every write if very verbose.

* doc/README.win32: Replace ".exe.log" to ".gc.log".
* doc/README.win64: Likewise.
* doc/README.win64: Fix a typo.
* misc.c (GC_CreateLogFile): Strip executable file extension for
the log file; use ".gc.log" extension (instead of ".log").

* include/gc_config_macros.h: Avoid the redefinition of
GC_xxx_THREADS macros.

* alloc.c (GC_try_to_collect_general): Change the type of "result"
local variable to GC_bool.

* include/gc_config_macros.h: Use old behavior for FreeBSD and
NetBSD platform detection code (check that other GC_xxx_THREADS
are undefined); add FIXME.

* include/gc_config_macros.h: Rearrange the platform detection
code (GC_WIN32_PTHREADS implies GC_WIN32_THREADS; define
GC_THREADS first if GC_XXX_THREADS already set; define proper
GC_XXX_THREADS if GC_THREADS; define GC_PTHREADS in a single
place; define _REENTRANT if posix threads except for Win32).

* alloc.c (GC_try_to_collect_general): New function (move the code
from GC_try_to_collect, pass force_unmap argument).
* alloc.c (GC_try_to_collect, GC_gcollect): Call
GC_try_to_collect_general().
* alloc.c (GC_gcollect_and_unmap): New public function.
* include/gc.h (GC_gcollect_and_unmap): New function declaration.
* tests/test.c (window_proc): Call GC_gcollect_and_unmap() on
WM_HIBERNATE event (instead of GC_set_force_unmap_on_gcollect()
and GC_gcollect()).

* include/gc.h (GC_allow_register_threads, GC_register_my_thread,
GC_unregister_my_thread, GC_malloc_many): Refine the comment.
* include/gc.h (GC_malloc_many, GC_NEXT): Declare unconditionally
(that is, don't depend on GC_THREADS macro).
* include/gc.h: Don't check for __CYGWIN32__ and __CYGWIN__ along
with a check for GC_PTHREADS (since the former implies the
latter).

* include/gc.h (GC_SOLARIS_THREADS): Don't check for.
* include/gc.h (GC_MIN, GC_MAX): Don't define.
* mallocx.c (GC_malloc_many): Add comment to #endif.

* configure.ac: Drop the subdir-objects Automake option, since
it's incompatible with picking source files from libatomic_ops.

* allchblk.c (GC_fail_count, GC_large_alloc_warn_interval): Add
"extern" keyword to a global variable declaration (some compilers
require it).
* alloc.c (GC_bytes_found, GC_unmap_threshold,
GC_force_unmap_on_gcollect): Likewise.
* dyn_load.c (GC_no_win32_dlls, GC_wnt): Likewise.
* finalize.c (GC_fail_count): Likewise.
* include/private/gc_hdrs.h (GC_hdr_cache_hits,
GC_hdr_cache_misses): Likewise.
* mallocx.c (GC_bytes_found): Likewise.
* mark_rts.c (GC_save_regs_ret_val, GC_world_stopped): Likewise.
* misc.c (GC_unmap_threshold): Likewise.
* os_dep.c (GC_unmap_threshold, GC_old_allocator): Likewise.
* pthread_support.c (GC_markers): Likewise.
* thread_local_alloc.c (GC_gcjobjfreelist,
GC_gcj_malloc_initialized, GC_gcj_kind): Likewise.
* win32_threads.c (GC_fault_handler_lock, GC_write_cs,
GC_dont_query_stack_min, GC_markers, GC_wnt): Likewise.

* tests/huge_test.c: Define GC_IGNORE_WARN (if not defined) to
suppress misleading GC "Out of Memory!" warning printed on every
GC_MALLOC(LONG_MAX) call.
* tests/huge_test.c: Include "gc.h" instead of <gc.h>.
* tests/huge_test.c (main): Replace K&R-style function definition
with the ANSI C one.

* dyn_load.c (GC_register_dynamic_libraries): Always use
lpMaximumApplicationAddress value for WinCE (even for old
versions).
* os_dep.c (VER_PLATFORM_WIN32_CE): Define if not in winbase.h.
* os_dep.c (GC_dont_query_stack_min): New global variable (only if
WinCE and THREADS).
* os_dep.c (GC_setpagesize): Adjust lpMaximumApplicationAddress
for WinCE (prior to version 6) if not _WIN32_WCE_EMULATION; set
GC_dont_query_stack_min for older WinCE (prior to version 5).
* win32_threads.c (GC_dont_query_stack_min): Declare.
* win32_threads.c (GC_get_stack_min): Rename the macro to
GC_wince_evaluate_stack_min for WinCE; update the comment.
* win32_threads.c (GC_push_stack_for, GC_get_next_stack): Use
GC_wince_evaluate_stack_min() instead of GC_get_stack_min() for
WinCE and don't update thread's last_stack_min value (only if
GC_dont_query_stack_min).
* win32_threads.c (GC_push_stack_for): Skip assertion for WinCE if
GC_dont_query_stack_min (since the evaluated stack_min value may
be incorrect if the stack is bigger than 64 KiB).

* gc_dlopen.c (GC_dlopen): Add function redirector (only if
GC_USE_LD_WRAP).
* include/gc.h: Include "gc_pthread_redirects.h" even if
GC_USE_LD_WRAP or GC_NO_THREAD_REDIRECTS.
* include/gc_pthread_redirects.h (GC_PTHREAD_REDIRECTS_H): Don't
define and check for (since included only from gc.h).
* include/gc_pthread_redirects.h: Declare "GC_" symbols even if
GC_USE_LD_WRAP or GC_NO_THREAD_REDIRECTS.
* include/gc_pthread_redirects.h: Include signal.h only to get
sigset_t definition.

* Makefile.direct: Document GC_REGISTER_MEM_PRIVATE.
* mark_rts.c (GC_is_tmp_root): Define also for WinCE unless
NO_DEBUGGING (that is, replace _WIN32_WCE_EMULATION with MSWINCE).
* os_dep.c (GC_sysinfo): Remove explicit global variable
initialization to "{0}" (revert back the previous change) since it
might produce a warning.

* allchblk.c (GC_large_alloc_warn_interval): Move declaration from
gc_priv.h.
* allchblk.c (GC_large_alloc_warn_suppressed): Move definition
from misc.c; define as STATIC.
* include/private/gc_priv.h (GC_large_alloc_warn_interval,
GC_large_alloc_warn_suppressed): Remove declaration.
* alloc.c (GC_bytes_found): Add "defined in" comment.
* mallocx.c (GC_bytes_found): Likewise.
* misc.c (GC_unmap_threshold): Likewise.
* os_dep.c (GC_old_allocator): Likewise.
* pthread_support.c (GC_markers): Likewise.
* thread_local_alloc.c (GC_gcjobjfreelist,
GC_gcj_malloc_initialized, GC_gcj_kind): Likewise.
* win32_threads.c (GC_markers): Likewise.
* alloc.c (GC_start_time): Explicitly initialize to 0 or NULL (to
be distinctive from a variable declaration).
* backgraph.c (GC_max_height, GC_deepest_obj): Likewise.
* blacklst.c (GC_old_normal_bl, GC_incomplete_normal_bl,
GC_old_stack_bl, GC_incomplete_stack_bl): Likewise.
* checksums.c (GC_faulted, GC_n_dirty_errors,
GC_n_faulted_dirty_errors, GC_n_changed_errors, GC_n_clean,
GC_n_dirty, GC_bytes_in_used_blocks): Likewise.
* dbg_mlc.c (GC_smashed): Likewise.
* finalize.c (GC_old_dl_entries): Likewise.
* gcj_mlc.c (GC_gcj_kind, GC_gcj_debug_kind, GC_gcjobjfreelist,
GC_gcjdebugobjfreelist): Likewise.
* mach_dep.c (GC_save_regs_ret_val): Likewise.
* mark.c (GC_n_rescuing_pages, GC_mark_stack, GC_mark_stack_limit,
GC_mark_stack_top): Likewise.
* misc.c (GC_min_sp, GC_high_water, GC_bytes_allocd_at_reset):
Likewise.
* os_dep.c (GC_data_start, GC_page_size, GC_sysinfo,
GC_old_segv_handler, GC_old_bus_handler,
GC_old_bus_handler_used_si, GC_old_segv_handler_used_si,
GC_proc_buf, GC_proc_fd, GC_vd_base): Likewise.
* pthread_stop_world.c (GC_stop_count, GC_stopping_pid): Likewise.
* reclaim.c (GC_leaked): Likewise.
* typd_mlc.c (GC_explicit_kind, GC_array_kind, GC_ext_descriptors,
GC_typed_mark_proc_index, GC_array_mark_proc_index,
GC_eobjfreelist, GC_arobjfreelist): Likewise.
* win32_threads.c (GC_pthread_map_cache, GC_marker_cv,
GC_marker_Id): Likewise.
* dbg_mlc.c (GC_smashed, GC_n_smashed): Define as STATIC.
* gcj_mlc.c (GC_gcjdebugobjfreelist): Likewise.
* os_dep.c (GC_vd_base): Likewise.
* pthread_support.c (GC_mark_threads): Likewise.
* reclaim.c (GC_leaked): Likewise.
* typd_mlc.c (GC_bm_table): Likewise.
* mark_rts.c (GC_save_regs_ret_val): Change declaration type to
that of definition; add "defined in" comment.
* mark_rts.c (GC_push_current_stack): Remove unnecessary cast for
GC_save_regs_ret_val.
* misc.c (GC_check_heap, GC_print_all_smashed,
GC_start_call_back): Remove unnecessary cast (of 0).
* misc.c (GC_LARGE_ALLOC_WARN_INTERVAL): New tuning macro.
* misc.c (GC_large_alloc_warn_interval): Initialize to
GC_LARGE_ALLOC_WARN_INTERVAL value.
* misc.c (GC_tmp): Change to "static".
* os_dep.c (GC_mprotect_state): Define as static.
* pthread_support.c (dummy_thread_local): Prefix with "GC_".
* win32_threads.c (WinMain): Remove FIXME for WinCE.

* os_dep.c (PROTECT, UNPROTECT): Use distinct ABORT messages.

* configure.ac: Rewrite the tests for external or internal
libatomic_ops.
* configure.ac: In particular, drop the symbolic links. Add option
--with-libatomic-ops for forced selection.
* Makefile.am: Adjust the path of source files from libatomic_ops
to not use the links.
* Makefile.am (libgc_la_LIBADD): Add $(ATOMIC_OPS_LIBS). This will
be empty if we use the bundled AO sources.

* Makefile.am: Strip version suffix for libatomic_ops directory.
* build_atomic_ops.sh: Likewise.
* build_atomic_ops.sh.cygwin: Likewise.
* configure_atomic_ops.sh: Likewise.
* Makefile.direct: Remove AO_VERSION definition; strip version
suffix for libatomic_ops directory.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* gc.mak: Likewise.

* libatomic_ops: Rename from "libatomic_ops-1.2".

* alloc.c (GC_version): Add "const" keyword.
* alloc.c (GC_get_version): New public function.
* include/gc.h (GC_get_version): New function declaration; update
the comment for the GC version.

* include/private/gc_locks.h (GC_allocate_ml, GC_lock_holder,
GC_collecting, GC_mark_lock_holder, GC_need_to_lock): Use "extern"
(for the global variable declaration) again.
* include/private/gc_pmark.h (GC_n_mark_procs, GC_mark_stack_size,
GC_mark_stack_limit, GC_mark_stack_top, GC_mark_stack,
GC_mark_stack_too_small, GC_mark_state): Likewise.
* include/private/gcconfig.h (GC_register_stackbottom): Likewise.
* include/private/pthread_support.h (GC_threads,
GC_thr_initialized, GC_in_thread_creation): Likewise.
* include/private/gc_priv.h: Likewise.

* real_malloc.c: Include private/config.h if HAVE_CONFIG_H.

* allchblk.c (GC_hblkfreelist): Define as STATIC.
* blacklst.c (GC_total_stack_black_listed): Likewise.
* include/private/gc_priv.h (GC_hblkfreelist, GC_stopped_mark,
GC_total_stack_black_listed, GC_push_stubborn_structures): Remove
declaration.
* mark_rts.c (GC_stopped_mark): Add declaration (only if
THREAD_LOCAL_ALLOC).
* allchblk.c (GC_fail_count): Move the declaration out of
GC_allochblk_nth(); remove "extern".
* alloc.c (IF_THREADS): Remove unused macro.
* alloc.c (GC_world_stopped): Define only if THREAD_LOCAL_ALLOC.
* alloc.c (GC_stopped_mark): Set GC_world_stopped value only if
THREAD_LOCAL_ALLOC.
* alloc.c (GC_bytes_found, GC_collection_in_progress,
GC_check_tls, GC_unmap_threshold, GC_force_unmap_on_gcollect):
Remove K&R-style "extern" for the declaration.
* dbg_mlc.c (GC_free_inner): Likewise.
* dyn_load.c (GC_repeat_read, GC_roots_present, GC_is_heap_base,
GC_get_next_stack, GC_no_win32_dlls, GC_wnt): Likewise.
* finalize.c (GC_fail_count): Likewise.
* include/private/gc_hdrs.h (GC_hdr_cache_hits,
GC_hdr_cache_misses): Likewise.
* include/private/gc_locks.h (GC_allocate_ml, GC_lock_holder,
GC_lock, GC_collecting, GC_mark_lock_holder, GC_need_to_lock):
Likewise.
* include/private/gc_pmark.h (GC_mark_procs, GC_n_mark_procs,
GC_mark_stack_size, GC_mark_stack_limit, GC_mark_stack_top,
GC_mark_stack, GC_mark_stack_too_small, GC_mark_state): Likewise.
* include/private/gc_priv.h (GC_current_warn_proc, GC_obj_kinds,
GC_n_kinds, GC_fo_entries, GC_n_heap_sects, GC_n_memory,
GC_page_size, GC_sysinfo, GC_black_list_spacing,
GC_objects_are_marked, GC_incremental, GC_dirty_maintained,
GC_root_size, GC_debugging_started, GC_large_alloc_warn_interval,
GC_large_alloc_warn_suppressed, GC_blocked_sp,
GC_activation_frame, GC_push_other_roots,
GC_push_finalizer_structures, GC_push_thread_structures,
GC_push_typed_structures, GC_start_call_back, GC_is_initialized,
GC_check_heap, GC_print_all_smashed, GC_print_all_errors,
GC_print_heap_obj, GC_have_errors, GC_print_stats,
GC_dump_regularly, GC_backtraces, GC_print_back_height,
GC_debug_generic_malloc_inner,
GC_debug_generic_malloc_inner_ignore_off_page,
GC_fl_builder_count, GC_mark_no, GC_help_marker,
GC_setup_temporary_fault_handler, GC_reset_fault_handler): Likewise.
* include/private/gcconfig.h (GC_SysVGetDataStart,
GC_FreeBSDGetDataStart, GC_register_stackbottom,
GC_MacTemporaryNewPtr, GC_amiga_get_mem): Likewise.
* include/private/pthread_support.h (GC_threads,
GC_thr_initialized, GC_in_thread_creation): Likewise.
* malloc.c (GC_text_mapping): Likewise.
* mallocx.c (GC_bytes_found): Likewise.
* mark.c (GC_check_dirty, GC_started_thread_while_stopped): Likewise.
* mark_rts.c (GC_save_regs_ret_val): Likewise.
* misc.c (GC_clear_stack_inner, GC_init_parallel, GC_init_win32,
GC_setpagesize, GC_init_linux_data_start,
GC_set_and_save_fault_handler, GC_unmap_threshold): Likewise.
* os_dep.c (GC_unmap_threshold, GC_push_all_stacks,
GC_darwin_register_mach_handler_thread): Likewise.
* pthread_support.c (GC_markers, GC_collection_in_progress):
Likewise.
* tests/test.c (GC_amiga_free_all_mem): Likewise.
* thread_local_alloc.c (GC_gcjobjfreelist,
GC_gcj_malloc_initialized, GC_gcj_kind): Likewise.
* win32_threads.c (GC_write_fault_handler, GC_gww_dirty_init,
GC_fault_handler_lock, GC_write_cs, GC_markers): Likewise.
* misc.c (GC_read, GC_register_finalizer_no_order, GC_init_dyld):
Move the declaration out of GC_init(); remove "extern".
* os_dep.c (GC_abort): Add the comment; add workaround to suppress
compiler "unreachable code" warnings for ABORT callers (where
ABORT is followed by a dummy return statement).
* os_dep.c (GC_old_allocator): Move the declaration out of
GC_default_push_other_roots(); remove "extern".
* darwin_stop_world.c (GC_mprotect_stop, GC_mprotect_resume):
Move the declaration out of GC_stop_world() and GC_start_world()
(only if MPROTECT_VDB); remove "extern".

* win32_threads.c (GC_get_stack_min, GC_push_stack_for,
GC_get_next_stack): Recognize _WIN32_WCE_EMULATION macro (used for
WinCE emulation and for custom WinCE 6 devices); add the comment.
* win32_threads.c (GC_get_stack_min): Cast pointer to word instead
of DWORD.
* win32_threads.c (GC_get_next_stack): Don't use and maintain the
latest known stack_min value for WinCE (if GC_get_stack_min is
defined as a macro); update the comments.
* win32_threads.c (GC_wnt): Don't declare for WinCE.

* Makefile.direct: Document EMPTY_GETENV_RESULTS.
* gcj_mlc.c (GC_clear_stack): Remove declaration.
* malloc.c (GC_clear_stack): Likewise.
* mallocx.c (GC_clear_stack): Likewise.
* typd_mlc.c (GC_clear_stack): Likewise.
* gcj_mlc.c (GENERAL_MALLOC, GENERAL_MALLOC_IOP): Rename to
GENERAL_MALLOC_INNER and GENERAL_MALLOC_INNER_IOP, respectively;
remove "lb" unnecessary cast to word.
* include/private/gc_priv.h (GC_clear_stack): Add declaration.
* include/private/gc_priv.h (GENERAL_MALLOC, GENERAL_MALLOC_IOP):
Move common declaration from typd_mlc.c and malloc.c; remove
unnecessary result and "lb" parameter casts.
* include/private/thread_local_alloc.h: Guard against duplicate
header file inclusion.
* os_dep.c (USE_MUNMAP): Replace "-->" with an error directive for
the case when USE_MMAP is not defined.
* pthread_support.c (GC_is_thread_tsd_valid): New internal
function (only if GC_ASSERTIONS and THREAD_LOCAL_ALLOC); move the
code from thread-local GC_malloc(); add FIXME for the condition.
* win32_threads.c (GC_is_thread_tsd_valid): Likewise.
* thread_local_alloc.c (GC_gcjobjfreelist): Change the type (to
match that of its definition).
* thread_local_alloc.c (GC_destroy_thread_local): Add a cast for
GC_gcjobjfreelist.
* thread_local_alloc.c (GC_lookup_thread, GC_lookup_thread_inner):
Remove unused declaration; don't include pthread.h.
* thread_local_alloc.c (GC_is_thread_tsd_valid): New declaration
(only if GC_ASSERTIONS).
* thread_local_alloc.c (GC_malloc): Use GC_is_thread_tsd_valid()
instead of GC_lookup_thread().
* win32_threads.c (GC_lookup_thread_inner): Define as STATIC.
* win32_threads.c (UNPROTECT): Rename to UNPROTECT_THREAD (to have
id different from that in os_dep.c).

* allchblk.c (GC_enough_large_bytes_left): Replace "inline static"
with GC_INLINE.
* include/private/gc_priv.h (fixed_getenv): Likewise.
* alloc.c (GC_max, GC_min): Replace "static INLINE" with
GC_INLINE.
* mark_rts.c (rt_hash): Likewise.
* win32_threads.c (GC_get_max_thread_index): Likewise.
* include/private/gc_priv.h (INLINE): Prefix with "GC_"; include
"static"; define for Sun CC; define for VC++ (and other
compilers).
* pthread_support.c: Don't define __inline__ for non-GNU compilers
(not needed anymore).

* NT_THREADS_MAKEFILE: Remove file (since it duplicates gc.mak).
* Makefile.in: Remove reference to NT_THREADS_MAKEFILE.
* Makefile.am: Likewise.
* Makefile.dj: Likewise.
* Makefile.direct: Likewise.
* doc/README.win32: Add reference to gc.mak.
* NT_X64_THREADS_MAKEFILE: Likewise.

* Makefile.direct: Remove references to acinclude.m4, libtool.m4.

* autogen.sh: Update.

* Makefile.am: Don't add libtool.m4 to EXTRA_DIST.
* acinclude.m4: Fix underquoting of GC_SET_VERSION.
* README.QUICK: Update information for Makefile.
* Makefile.am: Do not distribute the substituted bdw-gc.pc.
* configure.ac: Add AM conditional analog to KEEP_BACK_PTRS.
* tests/tests.am: Use it here to conditionally enable tracetest
when possible.

* dyn_load.c (GC_wnt): Update the comment.
* dyn_load.c (GC_register_dynamic_libraries): Add the comment for
_WIN32_WCE_EMULATION; recognize GC_REGISTER_MEM_PRIVATE (new
macro); call GC_is_heap_base() only if check for Type succeeded.

* mark_rts.c (GC_is_tmp_root): Don't define unless NO_DEBUGGING;
update the comment.
* include/private/gc_priv.h (GC_is_tmp_root): Remove declaration.

* include/private/gcconfig.h (CANCEL_SAFE, IF_CANCEL): new macros.
* include/private/gc_priv.h (DISABLE_CANCEL, RESTORE_CANCEL,
ASSERT_CANCEL_DISABLED): New macros.
* alloc.c (GC_maybe_gc): Assert cancellation disabled.
(GC_collect_a_little_inner,GC_try_to_collect, GC_collect_or_expand):
Disable cancellation.
(GC_add_to_our_memory): Check for overflow.
* misc.c (GC_cancel_disable_count): declare.
(GC_init, GC_write): Disable cancellation.
(GC_init): Remove redundant GC_is_initialized test.
* os_dep.c (GC_repeat_read): Assert cancellation disabled.
(GC_get_stack_base): Disable cancellation.
* pthread_stop_world.c (GC_suspend_handler_inner): Disable
cancellation.
* pthread_support.c (GC_mark_thread): Permanently disable
cancellation.
(GC_wait_for_gc_completion, GC_wait_builder, GC_wait_marker):
Assert cancellation disabled.
(fork handling): Disable cancellation, fix comment.
(GC_pthread_create): Disable cancellation.
(GC_unregister_my_thread): Disable cancellation.
* Makefile.direct: Document NO_CANCEL_SAFE.

* Makefile: Remove outdated file (Makefile.direct should be used
instead).

* include/gc.h (GC_use_DllMain): Refine the comment.

* configure.ac: Add documentation to AC_DEFINE for GC_THREADS and
EMPTY_GETENV_RESULTS.
* configure.ac: Fix a typo.
* Makefile.am: Likewise.

* checksums.c (GC_checksum, GC_update_check_page): Remove
"register" keyword in local variable declarations (for the code
used only for debugging or which is not time-critical).
* dbg_mlc.c (GC_has_other_debug_info, GC_store_debug_info,
GC_store_debug_info_inner, GC_check_annotated_obj, GC_print_obj,
GC_print_smashed_obj, GC_debug_end_stubborn_change,
GC_debug_invoke_finalizer): Likewise.
* dyn_load.c (GC_register_dynamic_libraries): Likewise.
* mallocx.c (GC_realloc): Likewise.
* mark_rts.c (GC_print_static_roots, GC_is_static_root,
GC_clear_roots): Likewise.
* misc.c (GC_write): Likewise.
* os_dep.c (GC_print_callers): Likewise.
* dyn_load.c (GC_register_dynamic_libraries): Rename "i" local
variable to "j" for the nested loop (just not to hide the similar
variable in the outer one).
* mark_rts.c (GC_print_static_roots): Output an error message
using GC_err_printf() (instead of GC_printf()).

* configure.ac: Move include flag from ${INCLUDE} ...
* Makefile.am: ... to AM_CPPFLAGS and also add the build directory.
* configure.ac: Call AM_CONFIG_HEADER([include/private/config.h]).
* configure.ac: Add documentation to all AC_DEFINE either directly
or using AH_TEMPLATE.

* win32_threads.c (GC_waitForSingleObjectInfinite): New static
function (only if GC_WINMAIN_REDIRECT).
* win32_threads.c (WinMain): Call GC_waitForSingleObjectInfinite()
thru GC_do_blocking() instead of calling WaitForSingleObject()
directly.

* pthread_support.c (start_mark_threads): Refine printed message.
* win32_threads.c (GC_thr_init): Likewise.

* Makefile.direct (GC_WINMAIN_REDIRECT): Add the comment for.
* Makefile.direct (NO_GETENV): Update the comment.
* include/gc.h (GC_WINMAIN_WINCE_LPTSTR): Remove macro.
* include/gc.h (GC_WinMain): Remove declaration.
* include/gc.h (WinMain): Define (as GC_WinMain) if and only if
GC_WINMAIN_REDIRECT.
* tests/test.c (GC_COND_INIT): Define as GC_INIT() also in case of
WinCE target unless GC_WINMAIN_REDIRECT is defined.
* tests/test.c (WINMAIN_LPTSTR): New macro.
* tests/test.c (WinMain): Use WINMAIN_LPTSTR instead of LP[W]STR
and GC_WINMAIN_WINCE_LPTSTR.
* win32_threads.c (start_mark_threads): Add the comment for
MARK_THREAD_STACK_SIZE.
* win32_threads.c: Recognize new GC_WINMAIN_REDIRECT macro.
* win32_threads.c (WINMAIN_LPTSTR, WINMAIN_THREAD_STACK_SIZE): New
macro (only if GC_WINMAIN_REDIRECT).
* win32_threads.c: Undefine WinMain macro if GC_WINMAIN_REDIRECT.
* win32_threads.c (GC_WinMain): Add prototype (only if
GC_WINMAIN_REDIRECT).
* win32_threads.c (main_thread_args, WinMain): Rename
GC_WINMAIN_WINCE_LPTSTR to WINMAIN_LPTSTR.
* win32_threads.c (WinMain): Call GC_INIT() instead of GC_init();
use WINMAIN_THREAD_STACK_SIZE.
* win32_threads.c (WinMain): Call GC_deinit() and
DeleteCriticalSection() only if WinCE; add FIXME.

* os_dep.c (GC_get_main_stack_base): add assertion for mem_base
value returned by GC_get_stack_base().

* Makefile.direct (MUNMAP_THRESHOLD, GC_FORCE_UNMAP_ON_GCOLLECT):
Add the comment for.
* alloc.c (GC_unmap_threshold, GC_force_unmap_on_gcollect):
Declare external variable (only if USE_MUNMAP).
* alloc.c (GC_try_to_collect): Temporarily set GC_unmap_threshold
value to 1 if GC_force_unmap_on_gcollect and restore it before
unlocking (only if USE_MUNMAP).
* doc/README.environment (GC_FORCE_UNMAP_ON_GCOLLECT): Add
information for.
* include/gc.h (GC_set_force_unmap_on_gcollect,
GC_get_force_unmap_on_gcollect): New public function prototype.
* include/gc.h (GC_FORCE_UNMAP_ON_GCOLLECT): New macro is
recognized.
* misc.c (GC_FORCE_UNMAP_ON_GCOLLECT): Likewise.
* include/gc.h (GC_INIT_CONF_FORCE_UNMAP_ON_GCOLLECT): New
internal macro (used by GC_INIT only).
* misc.c (GC_force_unmap_on_gcollect): New global variable.
* misc.c (GC_init): Recognize new "GC_FORCE_UNMAP_ON_GCOLLECT"
environment variable (and set GC_force_unmap_on_gcollect).
* misc.c (GC_set_force_unmap_on_gcollect,
GC_get_force_unmap_on_gcollect): New public function.
* tests/test.c (window_proc): Call GC_set_force_unmap_on_gcollect
to force the mode on if WM_HIBERNATE; restore the mode after
GC_gcollect().

* Makefile.direct (LARGE_CONFIG): Update information.
* include/gc.h (GC_stop_func): Refine the comment.

* configure.ac: Use EMPTY_GETENV_RESULTS instead of NO_GETENV for
Win32 (workaround for Wine bug).

* allchblk.c (GC_freehblk): Adjust local variables indentation.
* mallocx.c (GC_generic_malloc_many): Likewise.
* typd_mlc.c (GC_malloc_explicitly_typed_ignore_off_page,
GC_calloc_explicitly_typed): Likewise.
* typd_mlc.c (GC_make_array_descriptor): Remove unnecessary
brackets.

* configure.ac: Replace GC_WIN32_THREADS with GC_THREADS.
* configure.ac: Process enable_parallel_mark option for Cygwin and
Win32; define THREAD_LOCAL_ALLOC for Win32.

* include/private/gc_priv.h: Define AO_ASSUME_WINDOWS98 if
PARALLEL_MARK (required for VC++ x86).

* dbg_mlc.c (GC_generate_random_backtrace): Call
GC_try_to_collect(GC_never_stop_func) instead of GC_gcollect();
if GC is disabled then print error message and return.
* include/gc.h (GC_try_to_collect): Refine the comment.
* include/private/gc_priv.h (GC_never_stop_func): Fix return type;
refine the comment.

* add_gc_prefix.c: Move the file to the new "extra" directory.
* AmigaOS.c: Likewise.
* gcname.c: Likewise.
* if_mach.c: Likewise.
* if_not_there.c: Likewise.
* MacOS.c: Likewise.
* msvc_dbg.c: Likewise.
* setjmp_t.c: Likewise.
* threadlibs.c: Likewise.
* EMX_MAKEFILE: Prepend setjmp_t.c with "extra" directory.
* Makefile: Prepend AmigaOS.c, MacOS.c, add_gc_prefix.c, gcname.c,
if_mach.c, if_not_there.c, msvc_dbg.c, setjmp_t.c, threadlibs.c
with "extra" directory.
* Makefile.am: Likewise.
* Makefile.direct: Likewise.
* Makefile.dj: Likewise.
* Makefile.in: Likewise.
* NT_MAKEFILE: Prepend msvc_dbg.obj with "extra" directory.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* NT_THREADS_MAKEFILE: Prepend msvc_dbg.c with "extra" directory.
* gc.mak: Likewise.
* PCR-Makefile: Prepend if_mach.c, if_not_there.c with "extra"
directory.
* SMakefile.amiga: Prepend AmigaOS.c, setjmp_t.c with "extra"
directory.
* doc/simple_example.html: Update for threadlibs.c.
* os_dep.c: Prepend included AmigaOS.c with "extra" directory.

* include/gc.h (GC_do_blocking, GC_call_with_gc_active): New
function prototype.
* include/private/gc_priv.h (STOP_WORLD): Replace a no-op (for the
single-threaded case) with an assertion check for the state to be
not a "do-blocking" one.
* include/private/gc_priv.h (blocking_data): Move the structure
definition from pthread_support.c; change "fn" return type to void
pointer.
* include/private/gc_priv.h (GC_activation_frame_s): New structure
type.
* include/private/gc_priv.h (GC_push_all_stack_frames): New
function declaration (only if THREADS).
* include/private/gc_priv.h (GC_world_stopped): Don't declare
unless THREADS.
* include/private/gc_priv.h (GC_blocked_sp,
GC_activation_frame_s): New declaration (only if not THREADS).
* include/private/gc_priv.h (GC_push_all_register_frames): New
function declaration (only for IA-64).
* include/private/gc_priv.h (NURSERY, GC_push_proc): Remove
obsolete (unused) symbols.
* include/private/gc_priv.h (GC_push_all_stack_partially_eager):
Remove declaration (since it is static now).
* mark_rts.c (GC_push_all_stack_partially_eager): Move from mark.c
(for code locality) and make STATIC.
* mark_rts.c (GC_push_all_register_frames): New function (only for
IA-64).
* mark_rts.c (GC_push_all_stack_frames): New function (only if
THREADS).
* mark_rts.c (GC_add_trace_entry): New function prototype (used by
GC_push_all_stack_partially_eager(), only if TRACE_BUF).
* mark_rts.c (GC_push_all_stack_part_eager_frames): New function.
* mar_rts.c (GC_save_regs_ret_val): Move the declaration out of a
function body (only for IA-64).
* mark_rts.c (GC_push_current_stack): Call
GC_push_all_stack_part_eager_frames() instead of
GC_push_all_stack_partially_eager().
* mark_rts.c (GC_push_current_stack): Call
GC_push_all_register_frames() instead of GC_push_all_eager() for
IA-64 backing store.
* misc.c (GC_do_blocking_inner): Declare function (if THREADS
only).
* misc.c (GC_blocked_sp, GC_blocked_register_sp,
GC_activation_frame): New global variables (only if not THREADS).
* misc.c (GC_call_with_gc_active, GC_do_blocking_inner): New API
function (only if not THREADS).
* misc.c (GC_do_blocking): Move the function from
pthread_support.c.
* include/private/pthread_support.h (GC_Thread_Rep): Add
"activation_frame" field.
* pthread_stop_world.c (GC_push_all_stacks): Call
GC_push_all_stack_frames() and GC_push_all_register_frames instead
of GC_push_all_stack() and/or GC_push_all_eager(); don't check for
STACK_GROWS_UP here.
* pthread_support.c (GC_do_blocking_inner): Remove "static"; store
"fn" result back to "client_data" field.
* pthread_support.c (GC_call_with_gc_active): New API function.
* win32_threads.c (GC_call_with_gc_active): Likewise.
* win32_threads.c (GC_Thread_Rep): Add "thread_blocked_sp" and
"activation_frame" fields.
* win32_threads.c (GC_new_thread): Add assertion checking for
thread_blocked_sp is NULL.
* win32_threads.c (GC_do_blocking_inner): New function.
* win32_threads.c (GC_stop_world): Don't suspend a thread if its
thread_blocked_sp is non-NULL.
* win32_threads.c (GC_push_stack_for): Use thread
"activation_frame" (if non-NULL); use "thread_blocked_sp" if
non-NULL (instead of calling GetThreadContext()); "UNPROTECT" the
thread before modifying its last_stack_min; call
GC_push_all_stack_frames() instead of GC_push_all_stack(); update
the comments.

* alloc.c (GC_default_stop_func): New static variable (initialized
to GC_never_stop_func).
* alloc.c (GC_set_stop_func, GC_get_stop_func): New function.
* alloc.c (GC_timeout_stop_func): Define as GC_default_stop_func
(instead of GC_never_stop_func) if SMALL_CONFIG (or NO_CLOCK),
else call GC_default_stop_func() before getting "current_time".
* alloc.c (GC_maybe_gc): Expand GC_gcollect_inner() macro (for
FIXME comment).
* alloc.c (GC_maybe_gc, GC_collect_a_little_inner): add FIXME for
replacing GC_never_stop_func with GC_default_stop_func (if
possible).
* alloc.c (GC_gcollect): Use GC_default_stop_func.
* alloc.c (GC_collect_or_expand): Use GC_default_stop_func
(instead of GC_never_stop_func) unless it is trigged due to out of
memory; don't increment GC_fail_count and don't output warning
(before trying to collect again) in case the collection has been
interrupted (by GC_default_stop_func) and the heap expansion has
failed too.
* include/gc.h (GC_set_stop_func, GC_get_stop_func): New function
prototypes.

* os_dep.c (GC_get_stack_base): Add FIXME; add assertion for
GC_get_writable_length() result.

* configure.ac: Don't use -lpthread -ldl for Cygwin.

* NT_THREADS_MAKEFILE: Make it back equal to gc.mak.

* include/private/gcconfig.h (GWW_VDB): Undefine if
USE_GLOBAL_ALLOC (since incompatible).
* os_dep.c (GetWriteWatch_alloc_flag): Define as 0 unless GWW_VDB
is defined.
* os_dep.c (GC_unmap_threshold): Declare (for use in
GC_init_win32) if USE_MUNMAP.
* os_dep.c (GC_init_win32): Turn off memory unmapping if
GlobalAlloc() is used.
* os_dep.c (GC_win32_get_mem): Define and use new
VIRTUAL_ALLOC_PAD macro; don't waste an extra memory page unless
MPROTECT_VDB is in use.

* Makefile: Replace "version.h" with "include/gc_version.h".
* include/gc_version.h: Likewise.

* alloc.c (GC_collect_or_expand): Output heap size in WARN()
(before returning FALSE) for convenience.

* allchblk.c (GC_allochblk_nth): Use GC_PRIdPTR in WARN() format
string.
* pthread_support.c (start_mark_threads, GC_thr_init): Likewise.
* win32_threads.c (GC_delete_thread): Likewise.
* include/private/gc_priv.h (GC_PRIdPTR): New macro.
* pthread_stop_world.c (GC_suspend_handler_inner): Remove
unnecessary cast for WARN argument.
* pthread_support.c (start_mark_threads): if pthread_create()
failed then don't try to create other marker threads and (after
printing a warning) adjust GC_markers and GC_parallel values; log
GC_markers value (possibly adjusted) after that.

* win32_threads.c (start_mark_threads): if pthread_create() is
failed then don't try to create other marker threads and (after
printing a warning) adjust GC_markers and GC_parallel values.
* win32_threads.c (mark_mutex_event, builder_cv, mark_cv): Move
the definition upper (to be visible in start_mark_threads()).
* win32_threads.c (start_mark_threads): if CreateThread() or
_beginthreadex() is failed then don't try to create other marker
threads and (after printing a warning) adjust GC_markers,
GC_parallel values, and destroy the event objects (either only
some for the uncreated threads if DONT_USE_SIGNALANDWAIT or all if
not a single thread is created).
* win32_threads.c (GC_thr_init): Log GC_markers value (possibly
adjusted) after start_mark_threads() call.

* Makefile.am: Back remove "GC_" prefix for PTHREADS,
DARWIN_THREADS, WIN32_THREADS (for configure.ac).

* include/private/gc_priv.h: Change include of config.h to
private/config.h.
* include/private/gc_pmark.h: Likewise.
* gc_cpp.cc: Likewise.
* tests/test.c: Likewise.
* tests/test_cpp.cc: Include private/config.h (if HAVE_CONFIG_H);
undefine GC_BUILD.

* finalize.c (GC_general_register_disappearing_link): Return
GC_SUCCESS, GC_DUPLICATE, GC_NO_MEMORY (instead of 0, 1 and 2,
respectively).
* include/gc.h (GC_NO_MEMORY): New macro (defined as 2).
* include/gc.h (GC_register_disappearing_link,
GC_general_register_disappearing_link): Update the comment.
* typd_mlc.c (GC_calloc_explicitly_typed): Use GC_NO_MEMORY macro.
* finalize.c (GC_general_register_disappearing_link,
GC_register_finalizer_inner): Recalculate the hash table index
after GC_oom_fn succeeded (since the table may grow while not
holding the lock) and check again that the entry is still not in
the table (free the unused entry otherwise unless DBG_HDRS_ALL).
* finalize.c (GC_register_finalizer_inner): Initialize "hhdr"
local variable (to prevent a compiler warning).
* finalize.c (GC_register_finalizer_inner): Don't modify the data
pointed by "ocd" and "ofn" in GC_register_finalizer_inner() failed
(due to out of memory).

* alloc.c (GC_set_fl_marks, GC_clear_fl_marks): Transform loop to
suppress compiler "variable might be uninitialized" warnings.

* Makefile.direct (DONT_USE_SIGNALANDWAIT): Add the comment for.
* win32_threads.c (DONT_USE_SIGNALANDWAIT): Always define for
WinCE.
* win32_threads.c (THREAD_HANDLE): Cast Id (of DWORD type) to
HANDLE thru word type (to avoid a compiler warning) for WinCE.
* win32_threads.c (GC_marker_cv, GC_marker_Id): New static array
(only if DONT_USE_SIGNALANDWAIT).
* win32_threads.c (start_mark_threads): Initialize GC_marker_Id
and GC_marker_cv for each helper thread (only if
DONT_USE_SIGNALANDWAIT).
* win32_threads.c (GC_mark_mutex_state): New static variable (only
if DONT_USE_SIGNALANDWAIT).
* win32_threads.c (GC_mark_mutex_waitcnt,
signalObjectAndWait_func): Don't define if DONT_USE_SIGNALANDWAIT.
* win32_threads.c (GC_acquire_mark_lock, GC_release_mark_lock):
Use InterlockedExchange() over GC_mark_mutex_state (instead of
AO_fetch_and_add()) if DONT_USE_SIGNALANDWAIT.
* win32_threads.c (GC_wait_marker, GC_notify_all_marker):
Implement wait/broadcast primitives using Win32 multiple events
(one for each marker thread) if DONT_USE_SIGNALANDWAIT (instead of
using Win32 SignalObjectAndWait).
* win32_threads.c (GC_thr_init): Don't declare hK32 local
variable, don't check for GC_wnt, and don't initialize
signalObjectAndWait_func if DONT_USE_SIGNALANDWAIT.

* alloc.c (GC_finish_collection): Call GC_print_finalization_stats
if GC_print_stats (after getting "done_time").
* finalize.c (GC_old_dl_entries): New static variable (only if not
SMALL_CONFIG).
* finalize.c (GC_finalize): Save current GC_dl_entries value (only
if not SMALL_CONFIG).
* finalize.c (GC_print_finalization_stats): Define if and only if
not SMALL_CONFIG; use GC_old_dl_entries value; use GC_log_printf()
instead of GC_printf(); use "%lu" (instead of "%u") print format
specifier; use unsigned long type for "ready" counter (for LP64
targets).
* misc.c (GC_dump): No longer call GC_print_finalization_stats()
here (since it is called from GC_finish_collection()).
* misc.c (STACKBASE): Remove unused macro undef (for NOSYS and
ECOS).

* alloc.c (GC_expand_hp): Replace GC_init_inner() call with
GC_init() one.
* malloc.c (GC_alloc_large, GC_generic_malloc_inner): Likewise.
* mallocx.c (GC_generic_malloc_many): Likewise.
* misc.c (GC_enable_incremental): Likewise.
* alloc.c (GC_expand_hp): Update the comment.
* mark.c (GC_obj_kinds): Likewise.
* win32_threads.c (GC_allow_register_threads): Likewise.
* private/gc_priv.h (GC_init_inner): Remove function declaration.
* misc.c (GC_init_inner): Replace with public GC_init().

* gcj_mlc.c (GC_gcj_fake_mark_proc): New static function.
* gcj_mlc.c (GC_init_gcj_malloc): If mp is 0 then supply
GC_gcj_fake_mark_proc (aborting with the appropriate message)
instead.

* os_dep.c (GC_wince_get_mem): If VirtualAlloc() returns NULL (due
to out of memory) then don't increment GC_n_heap_bases and don't
call VirtualAlloc() again (with MEM_COMMIT).
* os_dep.c (GC_remap): Abort with a more informatory message if
VirtualAlloc() fails due to out of memory; update FIXME.

* Makefile: Fix typo for msvc_dbg.c.
* Makefile.direct: Likewise.
* Makefile.am: Prefix PTHREADS, DARWIN_THREADS, WIN32_THREADS with
"GC_".
* Makefile.dj: Don't reference remove files (nursery.c,
gc_nursery.h, gc_copy_descr.h).
* NT_MAKEFILE: Don't define __STDC__ macro (no longer used).
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* gc.mak: Likewise.
* NT_MAKEFILE: Remove unnecessary -DGC_BUILD (since it is always
defined in the source files).
* NT_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* gc.mak: Likewise.
* NT_X64_THREADS_MAKEFILE: Fix typo for -DGC_NOT_DLL.
* NT_STATIC_THREADS_MAKEFILE: Replace GC_WIN32_THREADS with
GC_THREADS.
* NT_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_THREADS_MAKEFILE: Likewise.
* gc.mak: Likewise.
* NT_MAKEFILE: Define _CRT_SECURE_NO_DEPRECATE to suppress the
compiler warnings.
* NT_STATIC_THREADS_MAKEFILE: Likewise.
* NT_X64_STATIC_THREADS_MAKEFILE: Place -D_CRT_SECURE_NO_DEPRECATE
before "$*.C" (and "$*.CPP").
* NT_X64_THREADS_MAKEFILE: Likewise.

* doc/README.solaris2: Replace GC_SOLARIS_THREADS with GC_THREADS.
* doc/README.win32: Replace GC_WIN32_THREADS with GC_THREADS.
* doc/README.win64: Add info about mingw-w64; add note for VC++
warnings suppression.

* os_dep.c (GC_forward_exception): Fix logic in several places.
(OSX-specific)

* include/private/gc_priv.h (MAX_HEAP_SECTS): Guard with ifndef.

* Makefile.direct: Copy missing information for -DSHORT_DBG_HDRS
from Makefile.
* Makefile: Remove the information about "define arguments" (which
is incomplete and outdated compared to that in Makefile.direct);
add help reference to Makefile.direct.
* Makefile.dj: Likewise.

* alloc.c (world_stopped_total_time, world_stopped_total_divisor):
Replace "STATIC" with "static" in the definition (since the
symbols aren't prefixed with "GC_").
* win32_threads.c (marker_sp, marker_bsp, marker_last_stack_min,
start_mark_threads, mark_mutex, builder_cv, mark_cv,
mark_mutex_event, signalObjectAndWait_func, main_thread_start):
Likewise.
* pthread_support.c (GC_wait_builder): Define as STATIC.
* win32_threads.c (GC_wait_builder): Likewise.

* misc.c (GC_get_heap_size_inner, GC_get_free_bytes_inner): New
API function.
* include/gc_pmark.h (GC_get_heap_size_inner,
GC_get_free_bytes_inner): New function declaration.

* include/gc.h: Recognize __CEGCC__ (as a synonym for _WIN32_WCE).
* include/gc_config_macros.h: Likewise.
* include/gc.h (GC_MAXIMUM_HEAP_SIZE): Recognize new macro.
* include/gc.h (GC_INIT_CONF_MAXIMUM_HEAP_SIZE): New macro (for
internal use).
* include/gc_config_macros.h: Always include stddef.h if GCC.
* include/gc_config_macros.h (GC_API): Define for CeGCC in the
same way as for MinGW.
* include/gc_config_macros.h (GC_API): Group the definition for
all cases together (check for GC_DLL only once).
* include/gc_pthread_redirects.h: Group non-Darwin code together.
* tests/test.c: Recognize GC_PRINT_VERBOSE_STATS (only if GC_DLL).

* Makefile.direct (GC_PTHREADS_PARAMARK, GC_IGNORE_GCJ_INFO,
GC_PRINT_VERBOSE_STATS, GC_DONT_EXPAND, GC_INITIAL_HEAP_SIZE,
GC_FREE_SPACE_DIVISOR, GC_TIME_LIMIT, GC_FULL_FREQ): Add the
comment for.
* misc.c (GC_init_inner): Recognize GC_PRINT_VERBOSE_STATS (new
macro).
* dyn_load.c (GC_wnt): Change definition to TRUE for WinCE; add
FIXME and the comment for WinCE.
* gcj_mlc.c (GC_init_gcj_malloc): Recognize GC_IGNORE_GCJ_INFO
(new macro).
* include/gc.h (GC_HAVE_BUILTIN_BACKTRACE): Don't define for VC++
WinCE (since backtrace() is unimplemented).
* include/private/gc_priv.h (GC_n_heap_bases): Remove declaration
(since static).
* os_dep.c (GC_n_heap_bases): Define as STATIC; move the
definition to be above GC_is_heap_base().
* include/private/gcconfig.h: Don't define NOSYS for WinCE on ARM
(both for MinGW and CeGCC toolchains).
* include/private/gcconfig.h: Recognize __CEGCC__ and
__MINGW32CE__ (as synonyms for __WIN32_WCE).
* include/private/gcconfig.h: If SH4 then don't set config
parameters for SH.
* include/private/thread_local_alloc.h (GC_key_create): Don't
abort on failures, just return -1 in these cases (this also
prevents compilation error for targets where ABORT is defined
indirectly as an inline assembler sequence).
* mark.c (WRAP_MARK_SOME): Also define for WinCE; add FIXME for
the GCC-based cross-compiler.
* mark.c (ext_ex_regn, mark_ex_handler): Don't define unless
WRAP_MARK_SOME is defined; define also for WinCE case; don't
check for _WIN64 (since WRAP_MARK_SOME is undefined for it).
* mark.c (GC_mark_some): Use __try/__except also for WinCE; update
the comment.
* misc.c: Include signal.h after gc_pmark.h included; check for
MSWINCE instead of _WIN32_WCE.
* misc.c (GC_init_inner): Remove duplicate GC_setpagesize() call.
* misc.c: Don't include <crtdbg.h> for WinCE targets.
* misc.c (GC_write): Define _MAX_PATH if undefined (workaround for
CeGCC toolchain).
* misc.c (GC_write): Use OutputDebugStringW() instead of
_CrtDbgReport() for WinCE targets.
* os_dep.c (GC_least_described_address): Define as STATIC.
* os_dep.c (GC_register_data_segments): Fix code indentation.
* os_dep.c (GC_wince_get_mem): Initialize "result" local variable
(to prevent a compiler warning).
* os_dep.c (GC_dirty_init): Add comment for WinCE target.
* tests/test.c: Don't include winbase.h directly if GCC for WinCE,
include assert.h instead.
* tests/test.c (tiny_reverse_test): Define and use
TINY_REVERSE_UPPER_VALUE macro (4 if VERY_SMALL_CONFIG else 10);
useful for WinCE.
* win32_threads.c (GC_Thread_Rep): Don't declare "handle" field
for WinCE (since thread Id is used as a "real" thread handle).
* win32_threads.c (THREAD_HANDLE): New macro.
* win32_threads.c (GC_register_my_thread_inner): Don't recognize
DONT_IMPORT_GETCURTHREAD anymore; don't record thread handle on
WinCE.
* Makefile.direct (DONT_IMPORT_GETCURTHREAD): Remove comment for.
* win32_threads.c (UNPROTECT, GC_fault_handler_lock): Don't check
for MSWINCE.
* win32_threads.c (GC_delete_gc_thread, GC_delete_thread): Don't
close thread handle on WinCE (since it's a thread Id).
* win32_threads.c (GC_suspend): Don't check for MSWINCE in the
MPROTECT-related code (for the case if MPROTECT_VDB would be
implemented for WinCE).
* win32_threads.c (GC_suspend, GC_start_world, GC_push_stack_for):
Use THREAD_HANDLE(t) to obtain thread handle.
* win32_threads.c (GC_PTHREADS_PARAMARK): New macro recognized;
implicitly define GC_PTHREADS_PARAMARK if GC_PTHREADS; include
pthread.h; define NUMERIC_THREAD_ID(id) if undefined yet; replace
GC_PTHREADS with GC_PTHREADS_PARAMARK where appropriate (for the
parallel mark support).
* win32_threads.c (start_mark_threads): Use int type for "i" local
variable (instead of "unsigned") to prevent a compiler warning.
* win32_threads.c (start_mark_threads): Don't check CreateThread()
result for -1; call CloseHandle() for the handle created by
CreateThread() (on WinCE); don't use errno (since errno.h is
missing on some targets like WinCE) when printing warning on a
marker thread creation failure.
* win32_threads.c (signalObjectAndWait_func): Define for WinCE.
* win32_threads.c (GC_wait_marker): Remove unnecessary assertion
for non-zero signalObjectAndWait_func (to make the code compilable
for WinCE).
* win32_threads.c (GC_thr_init): Allow PARALLEL_MARK for WinCE;
use GC_sysinfo to get processors count if WinCE; don't check for
SignalObjectAndWait() if WinCE; replace GC_PTHREADS with
GC_PTHREADS_PARAMARK.
* win32_threads.c (GC_thr_init): Recognize GC_MIN_MARKERS new
macro (useful for testing parallel marking on WinCE).
* win32_threads.c (GC_win32_start, main_thread_start): Define as
STATIC.
* win32_threads.c: Don't define main_thread_args,
main_thread_start(), WinMain() for WinCE if GC_DLL.
* win32_threads.c (WINCE_MAIN_STACK_SIZE): Remove useless macro
(since the stack size parameter is ignored on WinCE).
* win32_threads.c (main_thread_start): Remove forward declaration;
place its definition before WinMain() one.
* win32_threads.c (WinMain): Abort if GC_CreateThread() or
WaitForSingleObject() failed (for the main thread).

* allchblk.c (MUNMAP_THRESHOLD): Move macro definition out of
a function.
* allchblk.c (GC_unmap_threshold): New global variable definition
(initialized to MUNMAP_THRESHOLD).
* allchblk.c (GC_unmap_old): Use GC_unmap_threshold instead of
MUNMAP_THRESHOLD; skip unmapping if GC_unmap_threshold is 0.
* doc/README.environment (GC_UNMAP_THRESHOLD): Add information.
* misc.c (GC_unmap_threshold): New variable declaration.
* misc.c (GC_init_inner): Recognize "GC_UNMAP_THRESHOLD"
environment variable to set GC_unmap_threshold value (only if
USE_MUNMAP).

* dbg_mlc.c (OFN_UNSET): New macro (to detect
GC_register_finalizer() failures).
* dbg_mlc.c (store_old): Add a check for register_finalizer()
failure caused by an out-of-memory event (leave *ofn and *ocd
unmodified in that case).
* dbg_mlc.c (GC_debug_register_finalizer,
GC_debug_register_finalizer_no_order,
GC_debug_register_finalizer_unreachable,
GC_debug_register_finalizer_ignore_self): Initialize my_old_fn
to OFN_UNSET; clear *ocd and *ofn for non-heap objects (the same
as in GC_register_finalizer_inner()).

* Makefile.direct (GC_DLL): Add the comment for.
* doc/README.macros: Fix a typo.
* doc/README.macros (_DLL, GC_DLL, GC_NOT_DLL): Update info.
* doc/README.macros (__STDC__): Remove info.
* dbg_mlc.c (GC_get_back_ptr_info, GC_generate_random_heap_address,
GC_generate_random_valid_address, GC_print_backtrace,
GC_generate_random_backtrace, GC_register_describe_type_fn): Add
GC_API and GC_CALL to function definition.
* malloc.c (GC_generic_malloc): Likewise.
* mallocx.c (GC_incr_bytes_allocd, GC_incr_bytes_freed): Likewise.
* mark.c (GC_mark_and_push): Likewise.
* misc.c (GC_new_free_list_inner, GC_new_free_list,
GC_new_kind_inner, GC_new_kind, GC_new_proc_inner, GC_new_proc):
Likewise.
* include/gc_backptr.h (GC_get_back_ptr_info,
GC_generate_random_heap_address, GC_generate_random_valid_address,
GC_generate_random_backtrace, GC_print_backtrace): Add GC_API and
GC_CALL to function prototype.
* include/gc_mark.h (GC_mark_and_push, GC_new_free_list,
GC_new_free_list_inner, GC_new_kind, GC_new_kind_inner,
GC_new_proc, GC_new_proc_inner, GC_generic_malloc,
GC_register_describe_type_fn): Likewise.
* include/new_gc_alloc.h (GC_incr_bytes_allocd, GC_incr_mem_freed,
GC_generic_malloc_words_small): Likewise.
* gc_cpp.cc: Include "config.h" (if HAVE_CONFIG_H defined).
* include/private/gc_pmark.h: Likewise.
* include/private/gc_priv.h: Likewise.
* tests/test.c: Likewise.
* gc_cpp.cc: Define GC_BUILD.
* include/private/gc_pmark.h: Likewise.
* include/private/gc_priv.h: Likewise.
* gc_dlopen.c (WRAP_FUNC, REAL_FUNC): New macro.
* gc_dlopen.c (dlopen): Add GC_API to the wrapper function
definition.
* pthread_support.c (GC_pthread_create, GC_pthread_sigmask,
GC_pthread_join, GC_pthread_detach, pthread_sigmask, pthread_join,
pthread_detach, pthread_create): Likewise.
* win32_threads.c (GC_pthread_join, GC_pthread_create,
GC_pthread_sigmask, GC_pthread_detach): Likewise.
* gc_dlopen.c (dlopen): Use WRAP_FUNC and REAL_FUNC macros.
* include/gc_backptr.h: Include "gc.h".
* include/gc_backptr.h: Use extern "C" for the exported functions.
* include/gc_mark.h: Likewise.
* include/gc_config_macros.h (GC_THREADS): Define the macro if any
GC_XXX_THREADS is defined.
* include/gc_config_macros.h (_PTHREADS, _POSIX4A_DRAFT10_SOURCE):
Move the definitions below the place where GC_NETBSD_THREADS and
GC_DGUX386_THREADS are defined.
* include/gc_config_macros.h (GC_DLL): Don't define (even if _DLL
is defined) for GCC.
* include/gc_config_macros.h (GC_API): Define for Cygwin (in the
same way as for VC++); define for GCC v4+ (other than already
recognized MinGW/Cygwin) as a "default" visibility attribute if
GC_DLL is defined.
* include/gc_config_macros.h (GC_ATTR_MALLOC, GC_ATTR_ALLOC_SIZE):
New macro.
* include/gc.h (GC_malloc, GC_malloc_atomic, GC_strdup,
GC_malloc_uncollectable, GC_malloc_stubborn, GC_memalign,
GC_malloc_atomic_uncollectable, GC_malloc_ignore_off_page,
GC_malloc_atomic_ignore_off_page, GC_debug_malloc,
GC_debug_malloc_atomic, GC_debug_strdup,
GC_debug_malloc_uncollectable, GC_debug_malloc_stubborn,
GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page,
GC_debug_malloc_replacement): Add GC_ATTR_MALLOC attribute.
* include/gc_gcj.h (GC_gcj_malloc, GC_debug_gcj_malloc,
GC_gcj_malloc_ignore_off_page): Likewise.
* include/gc.h (GC_malloc, GC_malloc_atomic,
GC_malloc_uncollectable, GC_malloc_stubborn,
GC_malloc_atomic_uncollectable, GC_malloc_ignore_off_page,
GC_malloc_atomic_ignore_off_page, GC_debug_malloc,
GC_debug_malloc_atomic, GC_debug_malloc_uncollectable,
GC_debug_malloc_stubborn, GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page,
GC_debug_malloc_replacement: Add GC_ATTR_ALLOC_SIZE attribute
(for the first argument).
* include/gc_gcj.h (GC_gcj_malloc, GC_debug_gcj_malloc,
GC_gcj_malloc_ignore_off_page): Likewise.
* include/gc.h (GC_memalign, GC_realloc, GC_debug_realloc,
GC_debug_realloc_replacement): Add GC_ATTR_ALLOC_SIZE attribute
(for the second argument).
* include/gc.h (GC_malloc, GC_malloc_atomic, GC_strdup,
GC_malloc_uncollectable, GC_malloc_stubborn, GC_memalign,
GC_malloc_atomic_uncollectable, GC_free, GC_base, GC_size,
GC_realloc, GC_expand_hp, GC_set_max_heap_size,
GC_exclude_static_roots, GC_add_roots, GC_remove_roots,
GC_register_displacement, GC_debug_register_displacement,
GC_try_to_collect, GC_malloc_ignore_off_page,
GC_malloc_atomic_ignore_off_page, GC_debug_malloc,
GC_debug_malloc_atomic, GC_debug_strdup,
GC_debug_malloc_uncollectable, GC_debug_malloc_stubborn,
GC_debug_malloc_ignore_off_page,
GC_debug_malloc_atomic_ignore_off_page, GC_debug_free,
GC_debug_realloc, GC_debug_malloc_replacement,
GC_debug_realloc_replacement, GC_finalization_proc,
GC_register_finalizer, GC_debug_register_finalizer,
GC_register_finalizer_ignore_self,
GC_debug_register_finalizer_ignore_self,
GC_register_finalizer_no_order,
GC_debug_register_finalizer_no_order,
GC_register_finalizer_unreachable,
GC_debug_register_finalizer_unreachable,
GC_register_disappearing_link,
GC_general_register_disappearing_link,
GC_unregister_disappearing_link, GC_noop1, GC_warn_proc,
GC_set_warn_proc, GC_ignore_warn_proc, GC_fn_type,
GC_call_with_alloc_lock, GC_stack_base_func,
GC_call_with_stack_base, GC_same_obj, GC_pre_incr, GC_post_incr,
GC_is_visible, GC_is_valid_displacement, GC_same_obj_print_proc,
GC_is_valid_displacement_print_proc, GC_is_visible_print_proc,
GC_malloc_many, GC_CreateThread, GC_beginthreadex,
GC_endthreadex): Comment out (or remove if single and meaningless)
function argument names (to avoid identifiers out of the name
space).
* include/gc_gcj.h (GC_init_gcj_malloc, GC_gcj_malloc,
GC_debug_gcj_malloc, GC_gcj_malloc_ignore_off_page): Likewise.
* include/gc.h (GC_try_to_collect): Update the comment.
* include/gc.h (GC_size, GC_register_my_thread): Add const
qualifier for the argument referent.
* misc.c (GC_size): Likewise.
* pthread_support.c (GC_register_my_thread_inner,
GC_register_my_thread): Likewise.
* win32_threads.c (GC_register_my_thread_inner,
GC_register_my_thread): Likewise.
* include/gc.h (GC_INIT_CONF_ROOTS): New macro for internal use
(define instead of GC_INIT() for Cygwin and AIX).
* include/gc.h (GC_DONT_EXPAND, GC_MAX_RETRIES,
GC_FREE_SPACE_DIVISOR, GC_FULL_FREQ, GC_TIME_LIMIT, GC_IGNORE_WARN,
GC_INITIAL_HEAP_SIZE): Recognize new macro.
* include/gc.h (GC_INIT_CONF_DONT_EXPAND, GC_INIT_CONF_MAX_RETRIES,
GC_INIT_CONF_FREE_SPACE_DIVISOR, GC_INIT_CONF_FULL_FREQ,
GC_INIT_CONF_TIME_LIMIT, GC_INIT_CONF_IGNORE_WARN,
GC_INIT_CONF_INITIAL_HEAP_SIZE): New macro for internal use.
* include/gc.h (GC_INIT): Use GC_INIT_CONF_XXX macros.
* include/gc_mark.h: Prefix GC_H with '_'.
* include/gc_mark.h (GC_least_plausible_heap_addr,
GC_greatest_plausible_heap_addr, GC_debug_header_size): Use GC_API
for the public variable declaration.
* include/new_gc_alloc.h (GC_objfreelist_ptr, GC_aobjfreelist_ptr,
GC_uobjfreelist_ptr, GC_auobjfreelist_ptr): Likewise.
* include/gc_pthread_redirects.h (GC_pthread_create,
GC_pthread_sigmask, GC_dlopen, GC_pthread_join, GC_pthread_detach):
Use GC_API for the wrapper prototype.
* include/gc_pthread_redirects.h (pthread_create, pthread_join,
pthread_detach, pthread_sigmask, dlopen): Undefine unconditionally
before redirecting.
* include/new_gc_alloc.h: Replace GC_incr_mem_freed() with
GC_incr_bytes_freed(); remove FIXME.
* include/private/gc_priv.h (GC_make_closure,
GC_debug_invoke_finalizer, GC_noop): Remove GC_API for the private
function.
* tests/test.c (GC_print_stats): Handle GC_DLL case regardless of
the target.

* finalize.c (GC_general_register_disappearing_link,
GC_register_finalizer_inner): Remove unnecessary "ifdef THREADS"
guard for LOCK/UNLOCK().
* finalize.c (GC_general_register_disappearing_link,
GC_register_finalizer_inner): Get GC_oom_fn value before releasing
the lock (to prevent data races).
* gcj_mlc.c (GC_gcj_malloc, GC_debug_gcj_malloc,
GC_gcj_malloc_ignore_off_page): Likewise.
* mallocx.c (GC_generic_malloc_ignore_off_page): Likewise.
* include/gc_inline.h (GC_FAST_MALLOC_GRANS): Use GC_get_oom_fn()
instead of GC_oom_fn (to prevent data races).
* malloc.c (GC_generic_malloc): Likewise.
* mallocx.c (GC_memalign): Likewise.
* pthread_support.c (pthread_create): Likewise.
* gcj_mlc.c (maybe_finalize): Acquire the lock before setting
last_finalized_no value to prevent data races.
* include/gc.h (GC_gc_no, GC_get_gc_no, GC_oom_fn, GC_set_oom_fn,
GC_set_find_leak, GC_set_finalize_on_demand,
GC_set_java_finalization, GC_set_finalizer_notifier,
GC_set_dont_expand, GC_set_full_freq, GC_set_non_gc_bytes,
GC_set_no_dls, GC_set_free_space_divisor, GC_set_max_retries,
GC_set_dont_precollect, GC_set_time_limit, GC_warn_proc): Refine
the comment.
* misc.c (GC_set_oom_fn): Likewise.
* include/gc.h (GC_general_register_disappearing_link): Refine the
comment (replace "soft" word with "weak").
* misc.c (GC_oom_fn, GC_get_gc_no, GC_get_parallel,
GC_set_finalizer_notifier, GC_set_find_leak): Add the comment.
* misc.c (GC_set_oom_fn, GC_get_oom_fn, GC_set_finalizer_notifier,
GC_get_finalizer_notifier): Use LOCK/UNLOCK to prevent data races.

* dbg_mlc.c: Guard include <errno.h> with ifndef MSWINCE; include
"private/dbg_mlc.h" before it.
* malloc.c: Likewise.
* dbg_mlc.c (GC_debug_strdup): Use memcpy() instead of strcpy()
for WinCE (since deprecated); evaluate strlen() only once; don't
set errno for WinCE.
* malloc.c (GC_strdup): Likewise.
* dyn_load.c (GC_wnt): Define as macro (FALSE) for WinCE.
* include/gc.h (GC_unregister_my_thread): Refine the comment.
* include/gc.h (GC_uintptr_t, GC_beginthreadex, GC_endthreadex):
Don't declare for WinCE.
* include/gc.h (GC_WINMAIN_WINCE_LPTSTR): New macro (WinCE only).
* include/gc.h (GC_WinMain): Remove GC_API.
* include/gc.h (GC_WinMain): Use GC_WINMAIN_WINCE_LPTSTR for
lpCmdLine.
* tests/test.c (GC_WinMain): Likewise.
* win32_threads.c (main_thread_args, GC_WinMain): Likewise.
* include/gc_config_macros.h (ptrdiff_t): Guard with
ifndef _PTRDIFF_T_DEFINED; define _PTRDIFF_T_DEFINED macro.
* include/private/gc_locks.h: Guard include "atomic_ops.h" with
ifdef GC_PTHREADS (and not GC_WIN32_THREADS).
* mark.c: Include "atomic_ops.h" if PARALLEL_MARK.
* thread_local_alloc.c: Include "atomic_ops.h" if GC_GCJ_SUPPORT.
* win32_threads.c: Include "atomic_ops.h" if MPROTECT_VDB.
* include/private/gc_locks.h: Use include "atomic_ops.h" instead
of include <atomic_ops.h>.
* include/private/gc_priv.h: Likewise.
* include/private/gc_locks.h (GC_allocate_ml, GC_need_to_lock):
Don't export (replace GC_API to "extern").
* win32_threads.c (GC_allocate_ml): Don't export.
* include/private/gc_priv.h (DebugBreak): Define as macro for
WinCE (if not UNDER_CE and DebugBreak is not defined yet).
* include/private/gc_priv.h (UNALIGNED): Rename to UNALIGNED_PTRS
(since "UNALIGNED" is defined in winnt.h of WinCE).
* mark.c (UNALIGNED): Likewise.
* include/private/gcconfig.h (ARM32): Recognize _M_ARM and _ARM_.
* include/private/gcconfig.h (ALIGNMENT): Check always defined.
* include/private/gcconfig.h: Allow GC_WIN32_THREADS for WinCE.
* include/private/thread_local_alloc.h: Define USE_WIN32_SPECIFIC
for WinCE (since __declspec(thread) is unsupported).
* include/private/thread_local_alloc.h (TLS_OUT_OF_INDEXES):
Define for WinCE (if undefined).
* malloc.c (GC_malloc): Remove outdated comment about disabling
signals.
* misc.c: Don't include <tchar.h> (since not used anymore and may
break TEXT() macro defined in winnt.h).
* misc.c (GC_init_inner): Don't use GetModuleHandle() and
InitializeCriticalSectionAndSpinCount() for WinCE.
* misc.c (GC_init_inner): Replace GetModuleHandleA() with
GetModuleHandle() (and use TEXT() macro controlled by UNICODE).
* misc.c (LOG_FILE): Remove unused macro; don't use _T() macro.
* misc.c (GC_CreateLogFile): New static function (Win32/WinCE
only); move the code from GC_write(); replace GETENV() with
GetEnvironmentVariable(); replace CreateFileA() with
CreateFile(); use TEXT() macro (for Unicode support); replace
strcat() with memcpy() (since deprecated in WinCE).
* misc.c (GC_write): Define as STATIC.
* win32_threads.c (GC_attached_thread): Likewise.
* misc.c (GC_write): Use GC_CreateLogFile().
* misc.c: Define vsnprintf macro as StringCchVPrintfA for WinCE.
* misc.c (GC_abort): Try to invoke MessageBoxA() dynamically
(Win32 only) if DONT_USE_USER32_DLL is defined.
* misc.c (GC_abort): Duplicate msg to GC log file (for Win32 and
WinCE).
* misc.c (GC_abort): Use a more user-friendly abort if
NO_DEBUGGING (Win32 only).
* os_dep.c: Include "atomic_ops.h" only if MPROTECT_VDB (and
THREADS).
* os_dep.c (detect_GetWriteWatch): Use TEXT() for GetModuleHandle
(for Unicode support); check GetModuleHandle() result.
* tests/test.c: Don't define assert for WinCE (since may be
redefined by "assert.h" included from libatomic_ops).
* tests/test.c (FAIL): Define as ABORT for all targets (except
for PCR).
* tests/test.c (n_tests): Don't use AO_t.
* tests/test.c (check_heap_stats): Don't cast n_tests.
* tests/test.c (inc_int_counter): New function (for n_tests atomic
incrementation).
* tests/test.c (run_one_test): Test GC_memalign() for all targets.
* tests/test.c (run_one_test): Avoid unbalanced brackets in
#if-#else-#endif blocks.
* tests/test.c (run_one_test): Replace AO_fetch_and_add1() and
private LOCK/UNLOCK with GC_call_with_alloc_lock(inc_int_counter).
* tests/test.c (check_heap_stats): Replace
"if (sizeof(char *) > 4)" with "#if CPP_WORDSZ == 64" to suppress
"unreachable code" compiler warning.
* tests/test.c (WinMain): Set cmd type to LPWSTR (for WinCE
"UNDER_CE" mode); else use LPSTR type (for Win32 and WinCE).
* tests/test.c (thr_window): Replace "L" string prefix with
TEXT().
* thread_local_alloc.c: Check THREADS is defined (to prevent other
compiler errors and warnings otherwise).
* tests/test.c (WinMain): Recognize GC_NO_DLLMAIN macro (for
GC_use_DllMain()).
* Makefile.direct (GC_NO_DLLMAIN, DONT_IMPORT_GETCURTHREAD): Add
the comments for.
* win32_threads.c (GC_register_my_thread_inner): Recognize
DONT_IMPORT_GETCURTHREAD macro.
* win32_threads.c: Recognize GC_NO_DLLMAIN macro (to exclude
DllMain support if needed).
* win32_threads.c (GC_NO_DLLMAIN): Define implicitly if DllMain
thread registration is unsupported for a given configuration.
* win32_threads.c (GC_use_DllMain): Update the comment; refine
ABORT message.
* win32_threads.c (GC_use_DllMain,
GC_started_thread_while_stopped, GC_register_my_thread_inner,
GC_lookup_thread_inner, GC_delete_gc_thread,
GC_allow_register_threads, GC_lookup_pthread,
GC_push_thread_structures, GC_stop_world, GC_push_all_stacks):
Check for GC_NO_DLLMAIN.
* win32_threads.c (GC_Thread_Rep.tm_in_use, GC_attached_thread,
DllMain): Don't define if GC_NO_DLLMAIN.
* win32_threads.c (GC_stop_world): Declare "i" and "max" local
variables only if not GC_NO_DLLMAIN (to suppress compiler
warning).
* win32_threads.c (GC_mark_thread, start_mark_threads): Use
CreateThread() instead of _beginthreadex() for WinCE.
* win32_threads.c (MARK_THREAD_STACK_SIZE, WINCE_MAIN_STACK_SIZE):
New macros defined (used by start_mark_threads(), WinMain()).
* win32_threads.c (GC_thr_init): Exclude parallel-specific code on
WinCE for now (since getenv(), GetProcessAffinityMask() and
SignalObjectAndWait() are missing on WinCE).
* win32_threads.c (GC_thr_init): replace GetModuleHandleA() with
GetModuleHandle(); replace CreateEventA() with CreateEvent(); use
TEXT() macro (for Unicode support).

* include/gc.h (GC_has_static_roots_func): New typedef (user filter
callback).
* include/gc.h (GC_register_has_static_roots_callback): Use
GC_has_static_roots_func type.
* dyn_load.c (GC_has_static_roots,
GC_register_has_static_roots_callback): Likewise.
* dyn_load.c (GC_has_static_roots,
GC_register_has_static_roots_callback): Define on all platforms.
* dyn_load.c (GC_register_dynlib_callback,
GC_register_dynamic_libraries, GC_init_dyld): Replace K&R-style
functions definition with the ANSI C one.
* dyn_load.c (GC_register_dynlib_callback): Use new local variable
"callback" (initialized from GC_has_static_roots) to minimize data
races.
* dyn_load.c (GC_register_dynamic_libraries_dl_iterate_phdr,
GC_cond_add_roots): Define as STATIC.
* mark_rts.c (GC_remove_roots_inner): Likewise.
* dyn_load.c (GC_dyld_image_add): Don't call GC_add_roots() for
sections smaller than pointer size (just to avoid acquiring the
lock unnecessarily).
* dyn_load.c (GC_dyld_name_for_hdr): Define unconditionally (not
only for DARWIN_DEBUG).
* dyn_load.c (GC_dyld_image_add): Replace GC_add_roots() call with
LOCK + GC_add_roots_inner() + UNLOCK.
* dyn_load.c (GC_dyld_image_add): Call GC_has_static_roots() user
callback (if set) holding the lock; if it returns 0 then don't call
GC_add_roots_inner() for that region.
* dyn_load.c (GC_register_has_static_roots_callback): Put
"callback" value to GC_has_static_roots on all platforms.
* dyn_load.c (GC_has_static_roots): Update the comments.
* include/gc.h (GC_exclude_static_roots, GC_add_roots,
GC_remove_roots, GC_register_has_static_roots_callback): Likewise.
* include/private/gc_priv.h (struct roots): Likewise.
* include/private/gc_priv.h (GC_remove_roots_inner): Move prototype
to mark_rts.c and declare it as STATIC.
* include/private/gc_priv.h (GC_exclude_static_roots_inner): New
prototype.
* dyn_load.c (GC_register_dynamic_libraries_dl_iterate_phdr): Use
GC_exclude_static_roots_inner() instead of GC_exclude_static_roots.
* misc.c (GC_init_inner): Likewise.
* mark_rts.c (GC_exclude_static_roots_inner): New function (move
all the code from GC_exclude_static_roots(); add the comment.
* mark_rts.c (GC_add_roots_inner, GC_exclude_static_roots_inner):
add alignment assertion for the lower bound; add assertion for the
lower bound to be less than the upper one.
* mark_rts.c (GC_add_roots_inner, GC_exclude_static_roots): Adjust
the upper bound (round down to be of a pointer-aligned value);
return in case of an empty range.
* mark_rts.c (GC_exclude_static_roots): Acquire the lock and call
GC_exclude_static_roots_inner().
* mark_rts.c (GC_remove_roots): Quickly check the bounds and return
in case of a do-nothing case (before acquiring the lock).

* finalize.c (GC_fail_count): New external variable declaration.
* finalize.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested): New function declarations (if THREADS
only).
* finalize.c (GC_finalizer_nested, GC_finalizer_skipped): New
static global variables (used internally by GC_finalize() and
GC_check_finalizer_nested()).
* finalize.c (GC_check_finalizer_nested): New static function
definition (only if not THREADS, used internally by
GC_notify_or_invoke_finalizers() to minimize the probability of
a deep recursion when a client finalizer tries to allocate GC
memory).
* finalize.c (GC_finalize): Reset GC_finalizer_nested value (or
call GC_reset_finalizer_nested()) if last heap expansion failed.
* finalize.c (GC_notify_or_invoke_finalizers): Access GC_gc_no,
GC_finalizer_now, GC_finalize_on_demand, GC_finalizer_notifier,
last_finalizer_notification variables holding the lock (to avoid
data races).
* finalize.c (GC_finalizer_notifier): Add comment.
* finalize.c (GC_notify_or_invoke_finalizers): Add "quick" check
for an empty finalization queue (only if THREADS and not
KEEP_BACK_PTRS/MAKE_BACK_GRAPH).
* finalize.c (GC_notify_or_invoke_finalizers): Call
GC_check_finalizer_nested() and skip GC_invoke_finalizers() call
if appropriate.
* include/private/pthread_support.h (GC_Thread_Rep): Add unsigned
finalizer_nested and finalizer_skipped fields (for internal use
by the multi-threaded GC_check_finalizer_nested()).
* win32_threads.c (GC_Thread_Rep): Likewise.
* pthread_support.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested): New function definitions (the
multi-threaded variants of that in finalize.c).
* win32_threads.c (GC_reset_finalizer_nested,
GC_check_finalizer_nested): Likewise.

* alloc.c (GC_stopped_mark): Remove GC_log_printf("") (not needed
anymore and GCC produces a warning for it).
* alloc.c (GC_stopped_mark): Adjust printf argument type
specifier.
* backgraph.c: Include dbg_mlc.h before ifdef MAKE_BACK_GRAPH (for
the case when the configuration information comes from aconfig
file).
* checksums.c: Likewise.
* include/gc_allocator.h (GC_ATTR_UNUSED): Use "__unused__"
keyword instead of "unused".
* include/gc_allocator.h: Fix typos in comments.
* thread_local_alloc.c: Likewise.
* include/javaxfc.h (GC_finalize_all): Update comment.
* include/private/gc_priv.h (GC_API_PRIV): New macro (defined as
GC_API and serves only as a marker for the private but exported
symbols used by test.c only).
* include/private/gc_priv.h (GC_abort, GC_arrays, GC_is_marked,
GC_printf, GC_err_printf, GC_log_printf): Replace GC_API decl with
GC_API_PRIV one.
* include/private/gc_priv.h (GC_fo_entries): Don't export it
outside a DLL.
* include/private/gc_priv.h (GC_ATTR_FORMAT_PRINTF): New macro
designated to check the arguments correctness of printf-like
functions (currently works only for GCC v3+).
* include/private/gc_priv.h (GC_printf, GC_err_printf,
GC_log_printf): Use GC_ATTR_FORMAT_PRINTF attribute.

* dyn_load.c (HAVE_DL_ITERATE_PHDR): Break definition from use.
Define for FreeBSD 7.0+.

* mach_dep.c: Don't include ucontext.h with NO_GETCONTEXT.

* include/gc_gcj.h (GC_init_gcj_malloc): Improve descriptive
comment.

* allchblk.c (GC_merge_unmapped): Don't assume that adjacent
free blocks have different mapping status.  Correctly handle gap
between blocks.
(GC_split_block): Remove dead code setting hb_flags.  Add comment.
(GC_allochblk): Split blocks also in generational-only mode.
* os_dep.c (GC_unmap_gap): Don't really use munmap.

* include/private/gc_priv.h (GC_unmapped_bytes): Define as 0 for
not USE_MUNMAP case.

* Makefile.direct (MARK_BIT_PER_OBJ, PRINT_BLACK_LIST,
USE_PROC_FOR_LIBRARIES): Fix typo in the comments.
* Makefile.direct (USE_MMAP, USE_MUNMAP, THREAD_LOCAL_ALLOC,
PARALLEL_MARK, STATIC): Update the comments.
* include/private/gcconfig.h (GC_PREFER_MPROTECT_VDB): New macro
recognized (only if MPROTECT_VDB).
* Makefile.direct (DONT_USE_USER32_DLL, GC_PREFER_MPROTECT_VDB):
Add the comments for.
* os_dep.c (detect_GetWriteWatch): Recognize "GC_USE_GETWRITEWATCH"
environment variable (only if MPROTECT_VDB, if the variable is
unset when GC_PREFER_MPROTECT_VDB macro controls the strategy).
* doc/README.environment (GC_USE_GETWRITEWATCH): New variable.
* include/private/gcconfig.h (MPROTECT_VDB): Add FIXME for
USE_MUNMAP and PARALLEL_MARK cases (to relax the conditions in
the future).
* misc.c (GC_get_heap_size, GC_get_free_bytes): Ignore the memory
space returned to OS (GC_unmapped_bytes).
* include/gc.h (GC_get_heap_size, GC_get_free_bytes): Update the
comments.
* misc.c (GC_get_unmapped_bytes): New API function.
* include/gc.h (GC_get_unmapped_bytes): New API prototype.
* os_dep.c (GC_dirty_init): Move "ifdef GWW_VDB" block out of
"ifdef MSWIN32" one (for Cygwin).

* pthread_support.c (GC_allow_register_threads): New API function.
* win32_threads.c (GC_allow_register_threads): Likewise.
* include/gc.h (GC_allow_register_threads): New API prototype.
* include/gc.h (GC_register_my_thread, GC_unregister_my_thread):
Update the comments.
* pthread_support.c (GC_register_my_thread): Check the collector
is in the multi-threaded mode.
* win32_threads.c (GC_register_my_thread): Likewise.

* finalize.c (GC_finalize_all): Always call GC_invoke_finalizers
instead, following Ivan's original patch.

* allchblk.c (GC_allochblk_nth): Add assertion.
* checksums.c: Add GC_record_fault, GC_was_faulted,
CC_n_faulted_dirty_errors.
(GC_check_dirty): Remove register declarations, print
dirty bit errors on faulted pages.
* os_dep.c (GC_write_fault_handler): Call GC_record_fault().
* os_dep.c (GC_remove_protection): Compute index correctly.


== [7.2alpha2] 2009-06-12 ==

* dbg_mlc.c (GC_print_smashed_obj): Convert a group of printf()
calls into a single one (for output atomicity).
* typd_mlc.c (GC_calloc_explicitly_typed): Don't declare and use
GC_finalization_failures variable; check the result of
GC_general_register_disappearing_link() (for lack of memory)
instead.
* finalize.c (GC_finalization_failures): Remove unused global
variable.
* finalize.c (GC_general_register_disappearing_link,
GC_general_register_disappearing_link): Don't update the value of
GC_finalization_failures (since unused).
* include/private/gc_pmark.h (PUSH_ONE_CHECKED_STACK,
GC_PUSH_ONE_STACK, GC_PUSH_ONE_HEAP): The first parameter is of
word type now (as FIXUP_POINTER requires numeric argument).
* finalize.c (GC_ignore_self_finalize_mark_proc): GC_PUSH_ONE_HEAP
requires the first parameter of word type.
* mark.c (PUSH_GRANULE): Likewise.
* mark.c (GC_push_one, GC_push_all_eager): Likewise.
* finalize.c (GC_finalize_all): Call GC_invoke_finalizers() or
GC_finalizer_notifier directly, instead
of GC_INVOKE_FINALIZERS() to prevent infinite looping.
* include/javaxfc.h: Clarify GC_finalize_all comment.
* gcj_mlc.c: Include gc_pmark.h before "ifdef GC_GCJ_SUPPORT" (not
after) for configuration information.
* gcj_mlc.c (GC_gcj_malloc_ignore_off_page): Add comment.
* gcj_mlc.c (GC_gcj_malloc_ignore_off_page): Check "op" local
variable for NULL before dereferencing it, return GC_oom_fn() in
this case.
* typd_mlc.c (GC_malloc_explicitly_typed,
GC_malloc_explicitly_typed_ignore_off_page): Transform the code to
suppress compiler warning (for uninitialized "lg" variable).

* win32_threads.c (GC_unregister_my_thread): add false assertion
in unreachable code.

* pthread_support.c (GC_inner_start_routine): Don't release the
GC lock between GC_register_my_thread_inner() and
GC_init_thread_local() calls (post the "registered" even after
calling GC_init_thread_local()).
* win32_threads.c (GC_register_my_thread, GC_unregister_my_thread):
Use GC_lookup_thread_inner() instead of GC_lookup_thread() and
acquire the GC lock only once.
* win32_threads.c (GC_thr_init): Call GC_register_my_thread_inner()
directly instead of GC_register_my_thread() since I_HOLD_LOCK
and our (main) thread is not registered yet (add assertion for it).
* win32_threads.c (GC_init_parallel): Call GC_lookup_thread_inner()
directly instead of GC_lookup_thread() (since I_HOLD_LOCK).
* win32_threads.c (GC_lookup_thread): Remove unused function.
* win32_threads.c: Remove "#error GC_DLL untested with Cygwin".
* win32_threads.c (GC_win32_dll_threads): Define as FALSE macro
also if THREAD_LOCAL_ALLOC or GC_PTHREADS.
* win32_threads.c (GC_use_DllMain): Call ABORT also if GC_PTHREADS
(for Cygwin).
* win32_threads.c (GC_push_stack_for): Add parentheses around "&&"
(inside GC_ASSERT) to prevent compiler warning.
* win32_threads.c (GC_push_all_stacks): Remove FIXME for
PARALLEL_MARK.
* win32_threads.c (MAX_MARKERS, GC_markers): Move the definitions
to a place before GC_get_next_stack().
* win32_threads.c (marker_sp, marker_bsp): New static arrays (same
as in pthread_support.c).
* win32_threads.c (marker_last_stack_min): New static arrays (the
same semantics as for last_stack_min of GC_Thread_Rep).
* win32_threads.c (GC_get_next_stack): Handle marker threads.
* win32_threads.c (GC_mark_thread): Save the current stack pointer
to marker_[b]sp.
* win32_threads.c (start_mark_threads): Initialize
marker_last_stack_min elements (to "unset" value).

* misc.c (GC_set_oom_fn, GC_set_all_interior_pointers,
GC_set_finalize_on_demand, GC_set_java_finalization,
GC_set_finalizer_notifier, GC_set_dont_expand, GC_set_full_freq,
GC_set_no_dls, GC_set_free_space_divisor, GC_set_max_retries,
GC_set_dont_precollect, GC_set_time_limit, GC_set_warn_proc):
Change return type to void (these API functions no longer return
the old value).
* include/gc.h: Likewise.
* tests/test.c (main, WinMain, test): Remove explicit cast to void
for GC_set_warn_proc().
* misc.c (GC_get_oom_fn, GC_get_all_interior_pointers,
GC_get_finalize_on_demand, GC_get_java_finalization,
GC_get_finalizer_notifier, GC_get_dont_expand, GC_get_full_freq,
GC_get_no_dls, GC_get_free_space_divisor, GC_get_max_retries,
GC_get_dont_precollect, GC_get_time_limit, GC_get_warn_proc): New
API functions (to get the current value of the corresponding R/W
public variables).
* include/gc.h: Likewise.
* include/gc.h (GC_set_warn_proc, GC_set_free_space_divisor):
Update the comment.
* misc.c (GC_ignore_warn_proc): New API call-back function.
* include/gc.h (GC_ignore_warn_proc): Likewise.
* misc.c (GC_set_find_leak, GC_get_find_leak, GC_set_non_gc_bytes,
GC_get_non_gc_bytes): New API setter and getter functions (for the
public GC_find_leak and GC_non_gc_bytes variables, respectively).
* include/gc.h: Likewise.
* include/gc.h (GC_memalign): Add proto to GC API.
* mallocx.c (GC_memalign): Use GC_API, GC_CALL for the definition.
* tests/test.c (run_one_test): Test GC_memalign() on Win32 too,
remove GC_memalign() proto.
* misc.c (GC_write): Use multi-byte (A) variants of Win32
GetModuleFileName() and CreateFile().
* tests/test.c (main): Replace K&R-style function definition with the
ANSI C one.

* include/private/gcconfig.h (PLATFORM_ANDROID): New macro
recognized (for Linux on ARM32 without glibc).
* include/private/gcconfig.h (STRTOULL): Define for all targets
(define as "strtoul" for most targets except for LLP64/Win64).
* misc.c (GC_init_inner): Use STRTOULL instead of atoi/atol()
(cast the result to word type) to decode values of "GC_TRACE",
"GC_INITIAL_HEAP_SIZE", "GC_MAXIMUM_HEAP_SIZE" environment
variables.

* include/gc_allocator.h: Add gc_allocator_ignore_off_page.
* tests/test_cpp.cc: Add call to gc_allocator_ignore_off_page.

* win32_threads.c (GC_release_mark_lock): Correct misspelling of
AO_load in assertion.

* win32_threads.c (MAX_THREADS): Define as 1 if GC_win32_dll_threads
is defined as FALSE (otherwise the size of dll_thread_table is near
200 KiB for 32-bit).
* win32_threads.c (GC_use_DllMain): Optimize for THREAD_LOCAL_ALLOC.
* win32_threads.c (GC_Thread_Rep): Add backing_store_end and
backing_store_ptr fields for IA64 support.
* win32_threads.c (GC_register_my_thread_inner): Set
backing_store_end field to reg_base value for IA64 (same as in
pthread_support.c).
* win32_threads.c (SET_PTHREAD_MAP_CACHE): Put parentheses in the
"right" places, remove ';'.
* win32_threads.c (GC_fault_handler_lock): Declare only
if MPROTECT_VDB (and not WinCE).
* win32_threads.c (GC_suspend): Acquire and release
GC_fault_handler_lock only if MPROTECT_VDB (and not WinCE).
* win32_threads.c (GC_suspend): Define as STATIC.
* win32_threads.c (GC_push_stack_for): Fix WARN() format specifier
(should be word-compliant, "%p" is used w/o "0x"), don't cast sp.
* win32_threads.c (GC_push_all_stacks): Convert a group of printf()
calls into a single one (for output atomicity).
* win32_threads.c (GC_get_next_stack): Unprotect thread descriptor
before altering its last_stack_min ("thread" variable is added).
* win32_threads.c (GC_get_next_stack): Remove unnecessary checks for
"s" is non-NULL.
* win32_threads.c (GC_get_next_stack): Don't call GC_may_be_in_stack
if WinCE.
* win32_threads.c (GC_get_next_stack): Pass current_min value to
GC_get_stack_min as-is (without -1).
* win32_threads.c (GC_wait_marker): Remove FIXME and use "release"
version of AO_fetch_and_sub1().
* win32_threads.c (GC_win32_start_inner, GC_win32_start): convert int
to pointer (and vice versa) thru word type to suppress warnings.
* win32_threads.c (GC_mark_mutex_waitcnt): Fix comment, always
access atomically.
* misc.c: Change GC_THREADS tests back to THREADS.

* allchblk.c (GC_print_hblkfreelist, GC_dump_regions): Convert
a group of printf() calls into a single one (for output atomicity).
* include/gc.h (GC_set_all_interior_pointers, GC_set_full_freq,
GC_set_time_limit): New prototypes.
* misc.c (GC_set_all_interior_pointers, GC_set_full_freq,
GC_set_time_limit): New public setter/getter functions.
* include/gc.h: Fix (and remove outdated) comments for thread-local
allocation.
* include/gc.h: Fix typos in comments.
* misc.c (GC_init_inner, GC_printf): Likewise.
* include/gc.h (GC_unregister_disappearing_link): Refine comment.
* include/gc.h (GC_stack_base): Recognize _M_IA64 macro.
* misc.c (GC_stack_last_cleared, GC_min_sp, GC_high_water,
GC_bytes_allocd_at_reset, DEGRADE_RATE): Define only if THREADS.
* misc.c (GC_stack_last_cleared, GC_min_sp, GC_high_water,
GC_bytes_allocd_at_reset): Define as STATIC.
* misc.c (GC_get_heap_size, GC_get_free_bytes,
GC_get_bytes_since_gc, GC_get_total_bytes): Acquire the GC lock to
avoid data races.
* misc.c (GC_write_cs): Define only if THREADS (Win32/WinCE only).
* misc.c (GC_init_inner): Initialize GC_write_cs only if THREADS.
* misc.c (GC_init_inner): Use GC_INITIAL_HEAP_SIZE (if available) to
set the default initial value of initial_heap_sz.
* misc.c (GC_deinit): Destroy GC_write_cs only if THREADS.
* misc.c (GC_init_inner): Fix WARN() format specifier (should be
word-compliant, "%p" is used w/o "0x").
* misc.c (GC_init_inner): Don't recognize "GC_PAUSE_TIME_TARGET"
environment variable if SMALL_CONFIG.
* misc.c (GC_init_inner): Recognize "GC_FULL_FREQUENCY" environment
variable to set initial GC_full_freq value (if not SMALL_CONFIG).
* doc/README.environment (GC_FULL_FREQUENCY): Add information.
* doc/README.environment (GC_MARKERS): Refine information.
* misc.c (GC_init_inner): Change GC_ASSERT to GC_STATIC_ASSERT where
possible.
* misc.c (IF_NEED_TO_LOCK): New macro (instead of GC_need_to_lock).
* misc.c (GC_write): Use IF_NEED_TO_LOCK for handling GC_write_cs.
* misc.c (GC_abort): Don't define if SMALL_CONFIG.
* misc.c (GC_abort): Directly use WRITE() instead of GC_err_printf()
(to prevent possible infinite recursion).

* finalize.c (finalization_mark_proc): Replace K&R-style declaration
with ANSI C one.
* finalize.c (GC_grow_table, GC_register_finalizer_inner,
GC_enqueue_all_finalizers): Remove outdated comments about disabling
signals.
* finalize.c (GC_general_register_disappearing_link): Fix assertion
to catch NULL "obj" value.
* finalize.c (GC_unregister_disappearing_link): Check "link"
alignment before gaining the lock.
* finalize.c (GC_finalize): Refine comment.
* finalize.c (GC_finalize): Fix WARN() format specifier (should be
word-compliant, "%p" is used w/o "0x").
* finalize.c (GC_invoke_finalizers): Initialize "bytes_freed_before"
variable (to 0) to suppress compiler warning.
* include/gc_gcj.h (MARK_DESCR_OFFSET): Move to private/gc_pmark.h.
* include/gc_gcj.h: add "extern C" header and tail.
* include/private/gc_pmark.h: Remove GC_do_parallel_mark(),
GC_help_wanted, GC_helper_count, GC_active_count declarations (move
the comments to the place where these symbols are defined in mark.c).
* mark.c: Add STATIC GC_do_parallel_mark() declaration (for use by
GC_mark_some_inner, if PARALLEL_MARK only).
* mark.c (GC_mark_some_inner, GC_help_wanted, GC_helper_count,
GC_active_count, GC_do_parallel_mark): Define as STATIC.
* pthread_support.c (GC_mark_thread): Likewise.
* typd_mlc.c (GC_explicit_typing_initialized, GC_explicit_kind,
GC_array_kind, GC_ext_descriptors, GC_ed_size, GC_avail_descr,
GC_typed_mark_proc_index, GC_array_mark_proc_index, GC_eobjfreelist,
GC_arobjfreelist): Likewise.
* include/private/gc_pmark.h (PUSH_CONTENTS_HDR): Change GC_ASSERT
for HBLKSIZE to GC_STATIC_ASSERT.
* mark.c (GC_noop): Define for Borland C the same as for Watcom.
* mark.c (GC_noop, GC_mark_and_push): Add ARGSUSED tag.
* pthread_support.c (GC_do_blocking_inner): Likewise.
* mark.c (GC_mark_from): Initialize "limit" (to 0) in the default
switch branch to suppress compiler warning.
* mark.c (GC_return_mark_stack): Append new-line to printf message.
* mark.c: Remove unused GC_true_func(), GC_PUSH_ALL().
* pthread_support.c (GC_mark_thread): Add dummy "return 0" to
suppress compiler warning.
* pthread_support.c (start_mark_threads): Move the code limiting
"GC_markers" value (and printing a warning) to GC_thr_init().
* pthread_support.c (GC_thr_init): Silently limit "GC_markers" value
if based on the number of CPUs.
* pthread_support.c (GC_thr_init): Treat incorrect "GC_markers"
values as one.
* pthread_support.c (GC_register_my_thread_inner): Add a check for
"stack_end" is non-NULL (the same as in win32_threads.c).
* pthread_support.c (pthread_create): Call GC_oom_fn before giving up
with ENOMEM.
* thread_local_alloc.c (return_single_freelist): Convert "for" loop
to "while" one to suppress "possible extraneous ';'" warning.

* darwin_stop_world.c (GC_push_all_stacks): Recognize ARM32.
* include/private/gc_priv.h (GC_THREAD_STATE_T): Define for ARM32
(Darwin only).
* include/private/gcconfig.h: Add machine-specific part for DARWIN.
* include/private/gcconfig.h (ARM32): Define config parameters for
DARWIN (iPhone).

* alloc.c (GC_FULL_FREQ, GC_DONT_EXPAND, GC_FREE_SPACE_DIVISOR,
GC_TIME_LIMIT): New macros (used to control the default initial
values of GC_full_freq variable, GC_dont_expand,
GC_free_space_divisor, GC_time_limit respectively).
* include/private/gc_priv.h (TIME_LIMIT): Remove macro (replaced
with GC_TIME_LIMIT in alloc.c).
* alloc.c (GC_need_full_gc, GC_stopped_mark, GC_finish_collection):
Define as STATIC.
* mark_rts.c (GC_push_current_stack, GC_push_gc_structures): Likewise.
* include/private/gc_priv.h (GC_stopped_mark, GC_finish_collection):
Move the prototypes to alloc.c, make STATIC.
* include/private/gc_priv.h (GC_push_current_stack,
GC_push_gc_structures, GC_push_regs_and_stack): Remove prototypes
(move the comments to the places where these functions are defined).
* mach_dep.c (GC_push_regs_and_stack): Move to mark_rts.c and define
as STATIC.
* alloc.c (GC_timeout_stop_func, GC_stopped_mark,
GC_print_heap_sects): Convert a group of printf() calls into
a single one (for output atomicity).
* mark_rts.c (GC_print_static_roots): Likewise.
* alloc.c (GC_stopped_mark): Output blank line (when logging) for
convenience to delimit collections.
* alloc.c (GC_clear_a_few_frames): Rename NWORDS to CLEAR_NWORDS;
make "frames" local variable volatile (to prevent optimization).
* alloc.c (GC_try_to_collect_inner, GC_stopped_mark,
GC_finish_collection, GC_allocobj): Remove outdated comments about
disabling signals.
* include/private/gc_priv.h (GC_register_displacement_inner,
GC_gcollect_inner): Likewise.
* alloc.c (GC_try_to_collect_inner, GC_stopped_mark,
GC_finish_collection): Initialize "start_time" local variable (to 0)
to suppress compiler warning.
* mark_rts.c (GC_add_roots_inner): Likewise.
* alloc.c (GC_RATE, MAX_PRIOR_ATTEMPTS): Guard with "ifndef".
* include/private/gc_priv.h (clock, GC_stop_world, GC_start_world,
GC_acquire_mark_lock, GC_release_mark_lock, GC_notify_all_builder,
GC_wait_for_reclaim, GC_notify_all_marker, GC_wait_marker): Replace
K&R-style function prototypes with ANSI C one.
* include/private/gc_priv.h (ABORT): Define as DebugBreak() for
Win32/WinCE if SMALL_CONFIG (the same as in GC_abort()).
* include/private/gc_priv.h (ROUNDED_UP_WORDS, abs): Remove unused
macros.
* include/private/gc_priv.h (GC_noop): Declare for Borland C the
same as for Watcom.
* mark_rts.c (GC_push_conditional_with_exclusions): Add ARGSUSED tag.

* dbg_mlc.c (GC_store_debug_info, GC_store_debug_info_inner): Remove
outdated comment about disabling signals.
* mallocx.c (GC_malloc_uncollectable,
GC_malloc_atomic_uncollectable): Likewise.
* os_dep.c: Likewise.
* dbg_mlc.c (GC_debug_change_stubborn, GC_debug_end_stubborn_change):
Add ARGSUSED tag.
* pthread_stop_world.c (GC_suspend_handler,
GC_suspend_handler_inner): Likewise.
* dbg_mlc.c (GC_debug_free, GC_debug_realloc): Fix printf message.
* dbg_mlc.c (GC_debug_realloc): Set "result" to NULL in the default
switch branch to suppress compiler warning.
* dyn_load.c (GC_init_dyld): Use ABORT() instead of GC_abort().
* include/private/darwin_semaphore.h (sem_init): Likewise.
* include/javaxfc.h: Replace "GC_H" with "_GC_H".
* include/private/dbg_mlc.h (GC_has_other_debug_info,
GC_store_debug_info): Replace K&R-style function prototypes with ANSI
C one.
* include/private/gcconfig.h (GC_FreeBSDGetDataStart, real_malloc,
GC_win32_get_mem, GC_wince_get_mem, GC_unix_get_mem): Likewise.
* include/private/pthread_support.h (GC_stop_init): Likewise.
* include/private/gcconfig.h: Refine comment about setting
GC_stackbottom.
* include/private/gcconfig.h (FIXUP_POINTER): Put parentheses in the
"right" places.
* include/private/pthread_support.h (GC_Thread_Rep): Refine comment
for "stack_end" field.
* mallocx.c (GC_malloc_uncollectable,
GC_malloc_atomic_uncollectable): Remove cast to undefined "hbklk".
* os_dep.c (GC_USE_MEM_TOP_DOWN): New macro (for setting
GC_mem_top_down to MEM_TOP_DOWN for debug purposes).
* os_dep.c (GC_gww_read_dirty, catch_exception_raise): Fix WARN()
format specifier (should be word-compliant, "%p" is used w/o "0x").
* pthread_stop_world.c (GC_suspend_handler_inner): Likewise.
* os_dep.c (GC_dirty_init): Append new-line to printf messages.
* os_dep.c (GC_mprotect_thread): Fix GC_err_printf message.
* os_dep.c (GC_save_callers): Change GC_ASSERT to GC_STATIC_ASSERT.
* pthread_stop_world.c (GC_retry_signals, GC_suspend_ack_sem): Define
as STATIC.
* pthread_stop_world.c (GC_push_all_stacks): Add assertion for that
"thread_blocked" is not set for the current thread.
* real_malloc.c: Add "extern GC_quiet" to suppress compiler warning.
* reclaim.c (GC_reclaim_all): Initialize "start_time" (to 0) to
suppress compiler warning.

* tests/test.c (check_heap_stats): Avoid unbalanced brackets in ifdef.

* win32_threads.c: restructure parallel marking mutex initialization.
* win32_threads.c, alloc.c, darwin_stop_world.c, mallocx.c, mark.c,
pthread_stop_world.c, pthread_support.c: Add runtime conditions
on GC_parallel were appropriate.
* pthread_support.c: Condition marker_bsp on ia64.
(GC_segment_is_thread_stack): Fix loop upper bound.
* reclaim.c: Limit some assertions to PARALLEL_MARK.
* pthread_support.c: Don't acquire mark lock for thread-local
allocation.
* include/private/gc_priv.h: Don't define parallel mark sync
support just for THREAD_LOCAL_ALLOC.

* include/private/gcconfig.h: refine MINGW32 test.
* mark.c: Add win64/gcc tests.

* test.c (fork_a_thread, reverse_test, alloc8bytes, tree_test,
typed_test, run_one_test, check_heap_stats, main, test): Replace
all K&R-style function definitions with ANSI C ones.
* trace_test.c (main): Likewise.
* test.c (GC_COND_INIT): Define as GC_INIT() also in case of
THREAD_LOCAL_ALLOC.
* test.c (reverse_test): Call fork_a_thread() only if GC_PTHREADS
or GC_WIN32_THREADS; remove fork_a_thread() macros definition.
* test.c (reverse_test): Use "volatile" when clearing "b" and "c"
local variables (to suppress "assigned value is never used"
compiler warning).
* test.c (tree_test): Use public GC_noop1() instead of private
GC_noop().
* test.c (typed_test): Likewise.
* test.c (check_heap_stats): Define and assign value to
"late_finalize_count" local variable only if its value is used
(if FINALIZE_ON_DEMAND defined).
* test.c (main): Remove DJGPP-specific initialization of
GC_stackbottom (not needed anymore, handled in gcconfig.h).
* trace_test.c: Guard #define GC_DEBUG with #ifndef.
* trace_test.c: Include "gc_backptr.h".
* trace_test.c (main): Call GC_INIT().
* trace_test.c (main): Add "return 0" statement.

* dyn_load.c (GC_register_dynlib_callback): Use new index j
instead of i in the inner loop.

* tests/test.c: Increment n_tests with fetch_and_add when possible,
avoiding need to export lock.

* include/gc_pthread_redirects.h:
- dlfcn.h is included for dlopen() proto before undefining
"dlopen" (so, it's possible now to include dlfcn.h after
gc.h from user code);
- GC_dlopen() proto is added (except for Darwin as
it's missing there);
- "dlopen" is explicitly undefined (before its redefinition).
* include/gc.h:
- "process.h" is included besides "windows.h"
(for _beginthreadex/_endthreadex); win32 only.
- GC_NO_THREAD_DECLS is moved to the right place
(before closing "extern C").
* pthread_support.c: Fix out of memory handling for Thread_Reps.
* win32_threads.c: Don't include process.h on winCE,
improve out of memory handling for thread structures, don't
define GC_beginthreadex and GC_endthreadex for winCE.

* tests/test.c: Change gcj vtable decriptor type from size_t to
GC_word.

* gcj_mlc.c: Add comment.
* tests/test.c: Change NTEST to NTHREADS.  Fork 5 threads by default.
Run reverse_test a second time in each thread.Add comments.
Don't rely on AO_fetch_and_add.

* dyn_load.c (GC_register_dynlib_callback,
GC_register_dynamic_libraries_dl_iterate_phdr): Add support
for GNU_PT_RELRO relocations.

* Makefile, Makefile.direct: GC_SOLARIS_PTHREADS was replaced
by GC_SOLARIS_THREADS.
* include/gc.h: Improve finalizer documentation.
* mips_sgi_mach_dep.s: Replace _MIPS_SIM_ABI32 with _ABIO32.
* pthread_stop_world.c, Makefile.dj: Fix typos.

* win32_threads.c (GC_new_thread): Make first_thread
visible to the whole file.
(UNPROTECT): New macro.
(GC_push_stack_for, GC_suspend, GC_start_world): unprotect
thread structures before writing.
(GC_suspend): Acquire GC_fault_handler_lock before suspending
thread.
* os_dep.c: export GC_fault_handler_lock.
(GC_remove_protection): Check if already unprotected.

* doc/README.win32: Add OpenWatcom warning.
* include/private/gcconfig.h: Really check it in.

* os_dep.c (GC_get_stack_base, windows): Replace with Dave Korn's
code from gcc version.
* os_dep.c: make gc compilable (optionally) for Cygwin with
GetWriteWatch-based virtual dirty bit implementation ("os_dep.c" file).
* os_dep.c: Make non-win32 GC_write_fault_handler STATIC.
* mark.c (GC_noop): fix declaration definition mismatch for DMC.
* include/private/gcconfig.h: Enable MPROTECT_VDB and GWW_VDB for
Watcom (Win32 only).  It works.

* mach_dep.c: Don't use __builtin_unwind_init for register
state on PowerPC/Darwin.

* doc/gcdescr.html: Improve description of object freelist
structure.
* include/private/gc_priv.h: Fix comment for _size_map.

* os_dep.c (GC_linux_stack_base): Relax sanity test.

* include/private/gc_pmark.h (PUSH_CONTENTS_HDR for
MARK_BIT_PER_OBJ): Add missing backslash before eoln.

* misc.c (GC_set_warn_proc): Implicitly intialize GC on
non-Cygwin win32.

* configure.ac: Enable thread-local allocation for sparc-linux.

* alloc.c (GC_try_to_collect): Remove duplicate initialization
check.
* malloc.c (GC_generic_malloc): Remove lw to eliminate single-
threaded warnings.
* mallocx.c (GC_generic_malloc_ignore_off_page): Likewise.

* allchblk.c, backgraph.c, dbg_mlc.c, dyn_load.c,
finalize.c, include/private/gc_pmark.h, malloc.c, mark.c,
os_dep.c, pthread_stop_world.c, pthread_support.c, reclaim.c,
thread_local_alloc.c.
* misc.c: Refine comment.

* os_dep.c: Define GC_GWW_BUF_LEN more intelligently.  Add FIXME
comment.

* win32_threads.c (GC_push_stack_for): Yet another attempt
at the stack_min finding logic.  Try to clean up the existing code
while minimizing VirtualQuery calls.
(GC_win32_start_inner): Register thread before GC_printf.
Produce more output with DEBUG_THREADS.
*include/gc.h: Update obsolete comments.

* tests/test.c:
(gcj_class_struct2): Use cast instead of l suffix.
Cast GetLastError to int in various places.
Avoid unused result warning from incr/decr macros.
Add cast for fake_gcj_mark_proc.
Cast GC_gc_no to unsigned in printf.

* include/gc.h: Fix two typos in comments.

* finalize.c: Fix typo in comment.

* blacklst.c (GC_print_source_pointer): Don't call GC_print_heap_obj
with lock.

* reclaim.c: (GC_reclaim_block): Scan even nearly full blocks
if we are checking for leaks.

* win32_threads.c: Remove mark lock spinning.
* win32_threads.c, pthread_support.c: Update GC_unlocked_count,
GC_spin_count, and GC_block_count using atomic operations.
* tests/test.c: Declare n_tests as AO_t only if we have threads.

* win32_threads.c: Support PARALLEL_MARK.  Make printf arg
types agree with format specifiers.
Add STATIC for GC_threads.
* include/private/gcconfig.h: Add FIXME comment.
* tests/test.c (run_ine_test): Replace LOCK/UNLOCK use with
AO_fetch_and_add1_full.  Declare n_tests as AO_t.
(WinMain): Don't call GC_use_DllMain.
with PARALLEL_MARK or THREAD_LOCAL_ALLOC.

* alloc.c (GC_try_to_collect_inner): Don't print redundant
GC_bytes_allocd and GC_gc_no.
(GC_stopped_mark): Print average world stop time.
* include/private/gc_priv.h (MS_TIME_DIFF): Add cast.

* misc.c, doc/README.environment: Add support  for
GC_FREE_SPACE_DIVISOR and GC-disable-incremental.
* include/gc.h: Make GC_set_free_space_divisor correspond to
(somewhat unfortunate) reality.

(Mostly improves LLP64 support.)
* backgraph.c, checksums.c, dbg_mlc.c, finalize.c, mark.c,
misc.c, reclaim.c: Changed some int and long type to word or size_t
(and vice versa where appropriate)
* gcj_mlc.c, include/private/dbg_mlc.h, include/private/gcconfig.h,
include/private/thread_local_alloc.h, mark.c,
misc.c, thread_local_alloc.c, win32_threads.c: Added intermediate
casts to word type when casting from int to pointer (or pointer
to int, or data pointer to code pointer) - just to remove the
corresponding compiler warning.
* ptr_chck.c (GC_is_visible): cast int const to word type to
prevent left shift overflow.
* os_dep.c: change the type of GC_mem_top_down global variable
(containing a flag) to DWORD.
* include/gc_config_macros.h: define GC_SOLARIS_THREADS if GC_THREADS
is defined on SunOS x86_64.
* misc.c (GC_init_size_map): Ifdef out GC_ASSERT as a workaround
for VC++ 2008 amd64 (v15.00.21022.08 for x64) compiler bug
(the compiler gets hung if invoked with -Ox -D
ALL_INTERIOR_POINTERS -D GC_ASSERTIONS)
* backgraph.c: cast GC_gc_no value to unsigned short when
assigned/compared to height_gc_no field of back_edges.
* os_dep.c (GC_remove_protection): Add ARGSUSED.
* win32_threads.c (GC_thread_exit_proc): Remove unused local
variable.
* mark.c (GC_check_dirty): Move declaration out of func body.

* doc/gcinterface.html: Improve REDIRECT_MALLOC documentation.
* include/gc.h (GC_register_my_thread): Improve comment.

* Makefile.direct: Add comment for -DCHECKSUMS.

* thread_local_alloc.c, include/private/thread_local_alloc.h:
Fix typos in comments.
* finalize.c: Declare mark_procs and GC_register_finalizer_inner
STATIC.
* malloc.c (GC_free): Move size calculation below assertion.

* win32_threads.c (GC_get_stack_min, GC_may_be_in_stack):
Add one entry VirtualQuery cache, I_HOLD_LOCK assertions.
(GC_push_stack_for, GC_get_next_stack) : Hopefully fix WINCE support.

* finalize.c (GC_general_register_disappearing_link): Add
assertion.
* malloc.c (GC_generic_malloc): Round lb to granules, not words.
* mallocx.c (GC_generic_malloc_ignore_off_page): Round lb to
granules, not words.

* mach_dep.c (NO_GETCONTEXT): Define for sparc linux.
* configure.ac: Define mach_dep for sparc-linux.

* mark_rts.c (GC_approx_sp): Use volatile to avoid common
warning.

* dyn_load.c (GC_cond_add_roots): Fix GC_get_next_stack argument
order.

* alloc.c, dbg_mlc.c, dyn_load.c, finalize.c, gcj_mlc.c,
include/gc.h, include/gc_config_macros.h, include/gc_cpp.h,
include/gc_gcj.h, include/gc_mark.h, include/gc_typed.h,
include/javaxfc.h, include/private/gc_locks.h,
include/private/gc_priv.h, malloc.c, mallocx.c, mark.c, mark_rts.c,
misc.c, obj_map.c, os_dep.c, pthread_support.c, ptr_chck.c,
stubborn.c, tests/test.c, thread_local_alloc.c, typd_mlc.c
win32_threads.c: Add GC_CALL and GC_CALLBACK macro invocations.
* test.c: Remove some old K&R code.

* win32_threads.c (GC_may_be_in_stack): New.  (GC_Thread_Rep):
Add last_stack_min.  (GC_push_stack_for): Use last_stack_min.
(GC_get_next_stack): Add limit argument, use_last_stack_min.
(GC_suspend): make stack_base assignment conditional.
* dyn_load.c (win32 GC_cod_add_roots): Pass limit to
GC_get_next_stack.
* configure_atomic_ops.sh: Remove.
* build_atomic_ops.sh, build_atomic_ops.sh.cygwin, doc/README.win32,
Makefile.direct: Partially support build directories whose path
name contains blanks.
* Makefile.am: Support new files (build_atomic_ops.sh,
build_atomic_ops.sh.cygwin)

* include/private/gc_locks.h, include/private/gc_pmark.h,
include/private/gc_priv.h, include/private/gcconfig.h,
mach_dep.c, mark_rts.c, misc.c, os_dep.c, pthread_stop_world.c,
pthread_support.c, thread_local_alloc.c, typd_mlc.c, win32_threads.c:
Fix comments.

* pthread_support.c: Comment out LOCK_STATS.
* include/gc.h: Fix comments.

* misc.c (GC_init_inner): Enable GC_LOG_FILE on Cygwin.
* include/private/gcconfig.h: Consider USE_MMAP for Cygwin.
* os_dep.c (GC_get_main_stack_base): Use alternate definition
with USE_MMAP.
* include/private/gc_priv.h: Sometimes define SETJMP on Cygwin.

* doc/README: Make it clearer when Makefile.direct is assumed.
* cord/cord.am: install include/cord.h.

* win32_threads.c (GC_pthread_join, GC_pthread_start_inner):
Remove unused variables.
* darwin_stop_world.c: Always declare GC_thr_init().
* dbg_mlc.c (GC_debug_free_inner): Don't touch oh_sz if
SHORT_DBG_HDRS is defined.
* include/private/gc_pmark.h (OR_WORD_EXIT_IF_SET, parallel
mark, USE_MARK_BITS version): Refer to correct parameter name.

* finalize.c (GC_general_register_disappearing_link): Remove
redundant code.
* gcj_mlc.c (GC_init_gcj_malloc): Add cast to signed.
* os_dep.c: (GC_write_fault_handler): Remove remaining
references to deleted variable "code".  Remove redundant
FREEBSD definitions.
* include/private/gcconfig.h (GWW_VDB): Define for X86_64 when
defined for X86. (STATIC): Define as "static" with NO_DEBUGGING.

* include/private/gc_priv.h: Update MAX_HEAP_SECTS.

* dbg_mlc.c (GC_print_smashed_obj): Increase robustness with
smashed string, (GC_debug_free_inner): Mark as free.
* mallocx.c (GC_malloc_many): Always clear new block if
GC_debugging_started.
* reclaim.c: Move GC_debugging_started from
GC_reclaim_small_nonempty_block() to GC_reclaim_generic(),
which is also called directly.
* doc/README: Fix spelling error.  Update license summary.
* include/gc.h (GC_PRE_INCR3, GC_POST_INCR3): add (void **) casts.
* tests/test.c: Don't define GC_DEBUG if already defined.

* doc/simple_example.html: update --enable-full-debug reference,
Make HTML formatting standards compliant.
* doc/debugging.html, doc/leak.html: Fix HTML formatting bugs.
* doc/gcinterface.html: specify encoding.

* doc/simple_example.html: Update thread-local allocation
description.

* configure.ac: Check for gc-debug earlier; replace remaining
full-debug tests.
* include/gc.h, ptr_chck.c (GC_pre_incr, GC_post_incr):
Use signed offset type.  Use ptr_t internally.
* doc/gcinterface.html: Update LOCAL_MALLOC description.
* doc/README.autoconf, doc/leak.html, doc/README.DGUX386:
Fix full-debug reference.
* include/gc.h: Rewrite GC_..._INCR and friends.
* tests/test.c: Minimally test GC_..._INCR and friends.

* mark.c: (GC_push_next_marked, GC_push_next_marked_dirty,
GC_push_next_marked_uncollectable): Never invoke GC_push_marked
on free hblk.
* headers.c: Test COUNT_HDR_CACHE_HITS not USE_HDR_CACHE.
(GC_header_cache_miss): Always blacklist pointers for free
hblks.  Add assertion and comment.
* pthread_support.c (GC_register_my_thread): Fix #if indentation.
* include/private/gc_hdrs.h: USE_HDR_CACHE is no longer tested.
Delete it.
* include/private/gc_pmark.h: (PUSH_OBJ): Add assertion.

* alloc.c, include/gc_mark.h, Makefile.direct: Improve comments.

* configure.ac: Set win32_threads on MinGW.

Ivan's description of the patch follows. Note that a few pieces like
the GC_malloc(0) patch, were not applied since an alternate had been
previously applied.  A few differed stylistically from the rest of
the code (mostly casts to void * instead of target type),
or were classified as too minor to bother.  Note that
all of Ivan's static declarations which did not correct outright
naming bugs (as a few did), where replaced by STATIC, which is
ignored by default.

- minor bug fixing (for FreeBSD, for THREAD_LOCAL_ALLOC and for
GC_malloc(0));
- addition of missing getter/setter functions for public variables
(may be useful if compiled as Win32 DLL);
- addition of missing GC_API for some exported functions;
- addition of missing "static" declarator for internal functions
and variables (where possible);
- replacement of all remaining K&R-style definitions with ANSI
C ones (__STDC__ macro is not used anymore);
- addition of some Win32 macro definitions (that may be missing in
the standard headers supplied with a compiler) for GWW_VDB mode;
- elimination of most compiler warnings (except for
"uninitialized data" warning);
- several typos correction;
- missing parenthesis addition in macros in some header files of
"libatomic_ops" module.

My highlights based on reading the patch:

* allchblk.c: Remove GC_freehblk_ptr decl.
Make free_list_index_of() static.
* include/gc.h: Use __int64 on win64, define GC_oom_func,
GC_finalizer_notifier_proc, GC_finalizer_notifier_proc,
add getter and setters: GC_get_gc_no, GC_get_parallel,
GC_set_oom_fn, GC_set_finalize_on_demand,
GC_set_java_finalization, GC_set_dont_expand,
GC_set_no_dls, GC_set_max_retries, GC_set_dont_precollect,
GC_set_finalizer_notifier.  Always define GC_win32_free_heap.
gc_config_macros.h: Define _REENTRANT after processing
GC_THREADS.
* include/gc_cpp.h: Improve GC_PLACEMENT_DELETE test,
handling of operator new[] for old Windows compilers.
* include/gc_inline.h (GC_MALLOC_FAST_GRANS): Add parentheses
around arguments.
* dbg_mlc.c, malloc.c, misc.c: Add many GC_API specs.
* mark.c (GC_mark_and_push_stack): Fix source argument for
blacklist printing.
* misc.c: Fix log file naming based on environment variable
for Windows.  Make GC_set_warn_proc and GC_set_free_space_divisor
just return current value with 0 argument.  Add DONT_USE_USER32_DLL.
Add various getters and setters as in gc.h.
* os_dep.c: Remove no longer used GC_disable/enable_signals
implementations.  (GC_get_stack_base): Add pthread_attr_destroy
call.  No longer set GC_old_bus_handler in DARWIN workaround.
* pthread_support.c: GC_register_my_thread must also
call GC_init_thread_local.

* Makefile.direct, mach_dep.c: Add support for NO_GETCONTEXT.
* mach_dep.c: Include signal.h.
* gc_priv.h: Factor out INLINE declaration.

* include/private/gcconfig.h: Update MIPS/LINUX config.
* doc/gcdescr.html: Fix typo.
* mach_dep.c (GC_with_callee_saves_pushed): Don't rely on getcontext
for MIPS/LINUX.

* configure.ac: SPARC fixes.
* thread_local_alloc.c(GC_mark_thread_local_fls_for): Include
size 0, except for gcj.
* doc/gc.man: Expand C++ cautions.
* include/gc_inline.h: Fix comments.


== [7.1] 2008-05-03 ==

* doc/gcinterface.html: Improve C++ interface documentation.

* allchblk.c (GC_allochblk): Check for overflow during size
rounding.
* tests/huge_test.c: New.
* Makefile.direct, tests/tests.am: Add huge_test.c

* pthread_support.c: Fix typo in comment.
* os_dep.c (GC_win32_get_mem): Add heap section only if
allocation succeeded.

* malloc.c: (free replacement) Fix caller address space check.

* finalize.c (GC_grow_table): Dereference table in null-check.

* win32_threads.c (GC_delete_gc_thread, GC_delete_thread):
Consistently call CloseHandle. (GC_suspend): Call
GC_delete_gc_thread.
* tests/test.c: Don't reference GC_print_stats if not exported.

* tests/test.c (run_one_test): Don't mention pthread_self().
* misc.c: Declare GC_thr_init().

* allchblk.c (add_to_fl): disable assertions with USE_MUNMAP,
and refine assertions to handle huge unmergable blocks.
(GC_allochblk_nth): Add comment.

* include/private/gcconfig.h: Add missing FREEBSD macro
consistency test.

* allchblk.c (GC_enough_large_bytes_left): No longer take
parameters; return free list index bound.
(GC_merge_unmapped): Don't access nexthdr until after null test.
(Fixes bug in 1/29/08 check-in.)  (GC_allochblk): Calculate
when splitting is allowable only once here, not when considering each
block. (GC_allchblk_nth): Accept new may_split parameter.
Avoid some redundant tests for exact size matches.
* alloc.c (GC_should_collect): Cache min_bytes_allocd.
(GC_maybe_gc): Make locking assertion testable.
* mark_rts.c: Fix indentation.
* pthread_stop_world.c: Replace old GC_err_printf1 reference.
* tests/test.c: Remove (void) casts.  Optionally print some
timing information.

* windows-untested/gc.def: Remove CreateThread line.
* windows-untested/README: New file.
* win32_threads.c (GC_use_DllMain): Force collector initialization.
* include/gc.h (GC_use_DllMain): Clarify usage rules in comment.
* mark.c (GC_mark_from): Slightly simplify GC_DS_PER_OBJECT code.
* include/gc_cpp.h: Add matching placement delete overloads
everywhere.
* include/private/gc_locks.h (NO_THREAD): Add cast.
* include/private/gcconfig.h: Add test for __HP_aCC.
* configure.ac, tests/tests.am:  Avoid libgccpp on HP/UX.

* doc/README.win32: Fix typo.
* configure.ac: Fix printing of enable-shared result.

* misc.c (GC_init_inner): Assert !GC_need_to_lock only when
defined.  (GC_call_with_stack_base): Add GC_API.
* os_dep.c (GC_get_stack_base): Add GC_API.
* win32_threads.c: (GC_register_my_thread, GC_unregister_my_thread):
Add GC_API.
* include/gc.h: Add GC_API annotations.
* include/private/gc_locks.h: Define UNCOND_LOCK etc. also for
PCR.
* include/private/gc_pmark.h: Fix comments.

* include/private/gc_priv.h, mark_rts.c, typd_mlc.c:
Add GC_push_typed_structures() to push GC_ext_descriptors.

* tests/test.c: Call GC_INIT for DARWIN; test system type using
gcconfig.h-defined macros.

* allchblk.c (GC_merge_unmapped, GC_freehblk): Refuse to create
blocks large enough that their size, when interpreted as a signed
value, would be negative.
* include/private/gc_priv.h: Comment hb_sz range limit.

* mark.c (GC_push_next_marked): correct comment.
* Makefile.direct: document NO_PROC_STAT.
* include/private/gcconfig.h: Accommodate NO_PROC_STAT.


== [7.1alpha2] 2008-01-10 ==

* Makefile.am: Mention atomic_ops.c and atomic_ops_sysdeps.S
again.  Refer to build directory as ".".

* configure.ac: Ignore --enable-parallel-mark on Darwin for now.
* darwin_stop_world.c: Add FIXME comment for parallel marker.

* include/private/gc_priv.h: Update MAX_ROOT_SETS
and LOG_PHT_ENTRIES to handle larger heaps.

* include/gc.h (GC_INIT,GC_init): Update comments.

* allchblk.c, alloc.c, include/private/gc_priv.h:
Track GC_bytes_dropped and use in GC triggering decisions.
* alloc.c (min_bytes_allocd): Weight atomic blocks less.

* alloc.c (GC_add_to_heap): Call GC_install_header(p) AFTER
adjusting p.

* Makefile.am: Add NT_X64_THREADS_MAKEFILE.

* NT_X64_STATIC_THREADS_MAKEFILE: Clean up obsolete comment.
* alloc.c: Add declaration for GC_add_current_malloc_heap.
* win32_threads.c (GC_beginthreadex): Clean up error
return code.
* doc/README.win64, NT_X64_THREADS_MAKEFILE, Makefile.direct:
Add NT_X64_THREADS_MAKEFILE.

* alloc.c: Define GC_version instead of in version.h.
* version.h: Remove.
* include/gc_version.h: Move most of version.h here.
* include/gc.h: Include gc_version.h.
* gcname.c, add_gc_prefix.c: include gc.h instead of version.h.
* Makefile.direct, Makefile.dj, Makefile.am, include/include.am:
Adjust for version.h rename.

* configure.ac: Put libatomic_ops links in build directory.
* Makefile.am: Don't mention atomic_ops.c and atomic_ops_sysdeps.S
as nodist sources.

* include/gc.h, doc/README.macros: Add GC_NO_THREAD_REDIRECTS,
GC_NO_THREAD_DECLS, don't test explicitly for GC_SOLARIS_THREADS.

* alloc.c: Deal correctly with address wrapping for
GC_greatest_plausible_heap_addr and GC_least_plausible_heap_addr.
* finalize.c, include/gc.h (GC_register_disappearing_link,
GC_register_finalizer_inner): Improve out-of-memory handling.
* include/private/gc_pmark.h: Fix comment spelling.

* include/gc_inline.h, include/gc_tiny_fl.h: cleanups to make usable
in other contexts.

* include/gc.h: Don't define GC_HAVE_BUILTIN_BACKTRACE for uclibc.

* gc_cpp.cc: Don't include gc_cpp.h from local directory.

* allchblk.c, configure.ac (add --enable-munmap)

* dyn_load.c (GC_dyld_image_add): Remove ifdef clause and use the macro
GC_GETSECTBYNAME instead.
* include/private/gc_priv.h: Define GC_GETSECTBYNAME according to the
architecture (Darwin).

* reclaim.c (GC_bytes_found): Expand comment.
* thread_local_alloc.c (GC_malloc_atomic, GC_gcj_malloc): Pass
granules, not bytes, to GC_FAST_MALLOC_GRANS.
* include/gc.h: Never include gc_local_alloc.h.
* tests/test.c: Add size zero allocation tests.

* malloc.c: Update GC_large_allocd_bytes on explicit deallocation.
* allchblk.c: Sanity check GC_max_large_allocd_bytes.

* Makefile.direct: Invoke $(MAKE) instead of make.

* doc/scale.html: Reflect gc7 thread local allocation behavior.

* include/extra/gc.h, include/extra/gc_cpp.h: New.
* include/include.am: Install gc.h and gc_cpp.h in $(prefix)/include
again.

* pthread_support.c (GC_thr_init): Use sysconf(_SC_NPROCESSORS_ONLN)
for HURD.

* include/private/gcconfig.h: Add Linux/mips-64 support.

* dbg_mlc.c: Use random() on all glibc systems.
* mach_dep.c (GC_with_callee_saves_pushed): Don't use getcontext() on
HURD.  Add comment.
* pthread_stop_world.c (GC_suspend_handler, GC_stop_init): Accommodate
systems without SA_SIGINFO.

* include/gc.h (GC_PTR_STORE): Fix non-DEBUG parentheses.
* tests/test.c (run_one_test): Add GC_PTR_STORE test.
No longer test for RS6000.

* alloc.c, backgraph.c, headers.c, include/private/gc_priv.h:
Maintain GC_our_memory and GC_n_memory.
* dbg_mlc.c (GC_print_smashed_obj): Improve message.
(GC_print_all_smashed_proc): Pass client object address instead of
base.
* dyn_load.c (sort_heap_sects): New.  (GC_register_map_entries):
Register sections that are contiguous and merged with our heap.
* malloc.c, os_dep.c (GC_text_mapping): Check for just base name
of libraries.
* malloc.c (calloc): Check for special callers even with
USE_PROC_FOR_LIBRARIES. Move assertion.  Add rudimentary
malloc/free tracing.
* misc.c: No longer call GC_init_lib_bounds explicitly.
* thread_local_alloc.c (GC_malloc, GC_malloc_atomic): Always
initialize on demand.
* tests/test.c: Call GC_INIT only when required.

* Makefile.direct: Remove comment fragment.
* tests/tests.am: Add smashtest.
* configure.ac: Define GC_USE_DLOPEN_WRAP with redirect-malloc.
* pthread_support.c: Fix comment spelling.
* include/private/gcconfig.h: Define USE_PROC_FOR_LIBRARIES with
GC_LINUX_THREADS and REDIRECT_MALLOC.
* tests/smash_test.c: Initial check-in.
* obj_map.c: Print log entry to correct file.
* include/private/thread_local_alloc.h: Add TlsAlloc error check.

* alloc.c (GC_stopped_mark): Call GC_add_current_malloc_heap()
while world is still running.
* os_dep.c (GC_is_heap_base): Don't call GC_add_current_malloc_heap()
with world stopped.
* include/gc.h (GC_INIT for cygwin): Always call GC_add_roots.
* misc.c (GC_init/GC_init_inner): Perform all work in
GC_init_inner.
* Makefile.direct: Expand -DUSE_MUNMAP comment.

* include/gc.h: Define uintptr_t explicitly for VC++6.
* msvc_dbg.c (GetModuleBase): Revert to strcat if strcat_s doesn't
exist.


== [7.0] 2007-07-02 ==

* include/gc_config_macros.h: Also check for IA64 when setting
GC_HPUX_THREADS.
* mallocx.c: Change my_bytes_allocd to signed_word.
* include/gc_pthread_redirects.h: Remove obsolete Solaris threads
(as opposed to pthreads) support.

* mach_dep.c (GC_with_callee_saves_pushed): Don't use getcontext()
on ARM/Linux.  Check getcontext() return value.

* backgraph.c (per_object_func): Make argument types consistent.
(GC_traverse_back_graph): Mark GC_deepest_obj.

* finalize.c (GC_finalize): Change dl_size and fo_size to size_t.
* os_dep.c (GC_win32_get_mem): Add GC_mem_top_down option.

* doc/README.win32, doc/README, README.QUICK: Fix some of the worst
anachronisms.
* dyn_load.c: Partially support cygwin, but don't enable it yet.

* Makefile.am: Use -no-undefined for libgc.
* Makefile.direct: Document USE_PROC_FOR_LIBRARIES.
* dyn_load.c (GC_register_map_entries): Rename prot_buf to prot
consistently.
* misc.c: Fix some WARN calls.  Move GC_is_initialized setting and
GC_thr_init() call.
* os_dep.c: Consistently use WARN where appropriate.
* thread_local_alloc.c: Revert change to GC_WIN32_THREADS test.  Instead
remove inappropriate pthread.h include.
* doc/README.linux: Remove some anachronisms.

* alloc.c: Also use GC_check_tls on non-Linux systems.
* mallocx.c (GC_reclaim_generic): Remove bogus declaration.
* include/private/gc_priv.h (GC_reclaim_generic): Declare correctly
with prototype.

* alloc.c (GC_adj_bytes_allocd): Avoid (long) casts, fix comment.
(GC_print_heap_sects): Use size_t instead of unsigned long.
* thread_local_alloc.c (GC_lookup_thread): Define in the correct
context.
* win32_threads.c, include/gc_config_macros.h: The last of Romano
Paolo Tenca's patch.  Move stdint.h include to gc_config_macros.h.
* include/gc_inline.h: Avoid gc_priv.h dependencies.
* tests/test.c (check_heap_stats): Replace unsigned long with size_t.

* NT_X64_STATIC_THREADS_MAKEFILE: Replace obsolete -debugtype:cv.
* mark_rts.c (GC_push_roots): Fix kind type.

* doc/README.win64: New file.
* doc/doc.am, Makefile.direct: Add README.win64.

* Makefile.am, Makefile.direct: Add NT_X64_STATIC_THREADS_MAKEFILE.
* NT_X64_STATIC_THREADS_MAKEFILE: Fix warning flags.
* allochblk.c, alloc.c, blacklst.c, dbg_mlc.c, dyn_load.c,
finalize.c, headers.c, mach_dep.c, malloc.c, mark.c, misc.c,
obj_map.c, os_dep.c, ptr_chck.c, reclaim.c, typd_mlc.c,
win32_threads.c, cord/de_win.c, include/gc_mark.h,
include/private/gc_hdrs.h, include/private/gc_pmark.h,
include/private/gc_priv.h, tests/test_cpp.cc:
Replace old style function declarations.  Clean up integral types.
Remove register declarations.  The change in malloc.c and the
"int descr" declaration in mark.c are the most likely to have
been real bugs outside of win64.
* msvc_dbg.c: Disable on win64.
* win32_threads.c: Add AMD64 support.
* include/gc.h: no backtrace on AMD64 for now.

* msvc_dbg.c(GetModuleBase): Replace strcat with strcat_s.

* include/gc.h: (GC_word, GC_signed_word): Fix win64 definitions.
Don't include windows.h in an extern "C" context.
* include/private/gcconfig.h: Fix win64/X86_64 configuration.
* tests/test.c: Eliminate more old style function definitions.
Cleanup pointer and integer casts for win64.
* tests/test_cpp.cc: Don't include gc_priv.h.
* NT_STATIC_THREADS_MAKEFILE: Restrict suffixes for VC++ 2005.
* NT_X64_STATIC_THREADS_MAKEFILE: New.

* win32_threads.c: Separate out DEBUG_WIN32_PTHREADS_STACK.  Ignore
FINISHED threads for suspension.  (GC_pthread_join): Add
pthread_self() cast.  (GC_pthread_start_inner): Execute cleanup
handler when popping it.
* include/private/gc_locks.h: Inline THREAD_EQUAL for
GC_WIN32_PTHREADS.  Define USE_PTHREAD_LOCKS only if we have
pthreads.

* gc_dlopen.c, thread_local_alloc.c, threadlibs.c, win32_threads.c,
tests/test.c: Accommodate GC_WIN32_PTHREADS.
* include/gc.h: Don't include windows.h for GC_WIN32_PTHREADS.
* include/gc_config_macros.h: Define both PTHREADS and
GC_WIN32_THREADS.
* include/private/gc_locks.h: Nonstandard definitions of
NUMERIC_THREAD_ID for GC_WIN32_PTHREADS.
* doc/README.win32, Makefile.direct: Include documentation
for GC_WIN32_PTHREADS.
* Makefile.direct: Remove some anachronisms in the documentation.

* Makefile.am: Move includes to bottom.  Add better library
dependencies.  Increment library version.  Remove "SUBDIRS += .".
* cord/cord.am, tests/tests.am: Add better library dependencies.
Remove now unnecessary dependencies.
* include/gc.h (GC_beginthreadex, GC_endthreadex, GC_ExitThread):
Move to define on all Windows platforms.  (_beginthread): define
to generate error if used.

* include/private/gc_locks.h: Format to 80 columns.

* malloc.c(GC_free): Ignore bad frees on MSWIN32 with REDIRECT_MALLOC.
* NT_MAKEFILE: msvc_dbg.h is in include/private.  Don't use cvars
rc.
* misc.c (WIN32 GC_write): Define GC_need_to_lock in single-threaded
case.
* win32_threads.c: Test for __MINGW32__ in addition to _MINGW_VER.
(GC_CreateThread, GC_beginthreadex): Deallocate args even if we fail.
* include/gc.h: Add GC_reachable_here().  (GC_WinMain): Add GC_API.
(GC_beginthreadex, GC_endthreadex, GC_ExitThread): Declare.
* tests/test.c: Add GC_reachable_here() call.

* alloc.c (GC_try_to_collect): Call GC_init if necessary.
* tests/thread_leak_test.c: Don't unconditionally define
GC_LINUX_THREADS.

* Makefile.am: Remove extra_ldflags_libgc definition.

* include/private/gc_priv.h: Define AO_REQUIRE_CAS.

* finalize.c (GC_unreachable_finalize_mark_proc): Don't return void
value.


== [7.0alpha9] 2007-05-15 ==

* Some gc6.9 changes.
* Change FindTopOfStack decl in darwin_stop_world.c.
* Move some static tests from misc.c to gcconfig.h.  Use #error.
* Add GC_print_free_list() function (thanks to Bruce Hoult).
* Add GC_GNU_THREADS support on HURD (thanks to Aleksey Demakov,
Barry DeFreese, and possibly other Debian maintainers).
* __GNUC__ was misspelled as __GNUC in thread_local_alloc.h (thanks to
Peter Wang).
* Integrated various MacOSX patches and tried to reconcile them (thanks to
Allan Hsu, several contributors at Apple, and probably others).
* Added some casts to powerpc.h in libatomic_ops to silence warnings.

* Makefile.am: Include NT_STSTIC_THREADS_MAKEFILE in dist.
* include/private/gc_locks.h: GC_compare_and_exchange, GC_atomic_add:
remove. NUMERIC_THREAD_ID, THREAD_EQUAL: New.  GC_lock_holder: now
unsigned long.  I_DONT_HOLD_LOCK, I_HOLD_LOCK: Update.
* pthread_stop_world.c, pthread_support.c, win32_threads.c: Use
NUMERIC_THREAD_ID, THREAD_EQUAL.
* include/private/gcconfig.h: GENERIC_COMPARE_AND_SWAP: Remove.
* include/private/thread_local_alloc.h: Don't USE_COMPILER_TLS on
ARM.

* dbg_mlc.c, include/gc.h, finalize.c: Merge Alexandre Oliva's
GC_debug_register_finalizer_unreachable() patch from gcc tree.
* thread_local_alloc.c (GC_malloc, GC_malloc_atomic): Add assertions
to check GC has been initialized.

* include/gc_cpp.h: Documentation updates.
* include/gc_config_macros.h: Don't check for __ppc__ to set
DARWIN_THREADS.
* Makefile.am: Include configure_atomic_ops.sh in dist.

* Makefile.am: Don't distribute copied atomic_ops files.  Include
libatomic_ops with "make dist".
* configure.ac: Enable THREAD_LOCAL_ALLOC for Cygwin with threads.
* win32_threads.c: Report error for Cygwin + GC_DLL.

* Makefile.direct: Update THREAD_LOCAL_ALLOC documentation.
* cord/de_win.c: Rename and move AboutBox.  Call GC_INIT.  Remove
MakeProcInstance anachronism.
* doc/README.macros: Officially remove elif prohibition.
Remove documentation for defunct SRC_M3 support.
* include/gc.h: Remove more SRC_M3 references.
* include/private/gcconfig.h: Remove still more SRC_M3 references.
GC_SOLARIS_THREADS no longer needs to be checked separately.

* thread_local_alloc.c, include/private/thread_local_alloc.h:
Spell __declspec correctly.
* NT_STATIC_THREADS_MAKEFILE: Enable thread-local allocation.

* doc/README.win32: Adjust GC_win32_dll_threads rules again.

* mark.c (GC_mark_some wrapper): Restructure for readability, handle
GC_started_thread_while_stopped.
* misc.c (Win32 GC_write): Lock GC_write_cs only if needed.
* win32_threads.c: (client_has_run): remove,
GC_started_thread_while_stopped, GC_attached_thread: add.
(GC_push_all_stacks): Add verbose output.
(DllMain): Avoid initializing collector or the like.
Never update both thread tables.
* doc/README.win32: Adjust GC_win32_dll_threads rules.

* pthread_stop_world.c (GC_push_all_stacks): Print thread count with
GC_PRINT_VERBOSE_STATS.

* configure.ac: Comment out redundant
AC_DEFINE(NO_EXECUTE_PERMISSION).
* sparc_mach_dep.S: Remove single quote in comment.
* include/private/gcconfig.h: Fix DATAEND for NONSTOP.
* win32_threads.c: Include stdint.h for Mingw.  Add GC_API for DllMain.
(GC_use_DllMain): Fix assertion.

* configure.ac: Introduce extra_ldflags_libgc. Use it for Darwin.
* Makefile.am (libgc_la_LDFLAGS): Use extra_ldflags_libgc.
* include/private/gcconfig.h: Enable MPROTECT_VDB for all Darwin
targets. Remove comments.
Prepare ppc64 support for Darwin.

* darwin_stop_world.c (GC_push_all_stacks): Fix compiler warnings.
Make i unsigned.
(GC_stop_world): Likewise. Remove unused GC_thread p.
(GC_start_world): Likewise.

* os_dep.c: Define GC_darwin_register_mach_handler_thread extern.
Remove double SIG_HNDLR_PTR definition.
(GC_forward_exception): Fix compiler warnings, make i unsigned.
Initialize thread_state to NULL.
(catch_exception_raise): Fix compiler warnings, make i unsigned.

* include/private/gc_priv.h (NEED_FIND_LIMIT, FREEBSD variant):
also define for X86_64.
* configure.ac: Move generic gnu (Hurd) case to below kfreebsd case.
* README.changes: Point to ChangeLog.

* darwin_stop_world.c: Move THREAD_FLD defines to ...
* include/private/gc_priv.h: ... here.
Fix THREAD_STATE definitions for ppc64.
* os_dep.c (catch_exception_raise): Use THREAD_FLD for exc_state member
access.

* configure.ac (i586-darwin): Replaced HAS_I386_THREAD_STATE_* with
HAS_X86_THREAD_STATE32_*.
(x86_64-*-darwin*): Extended the above check for x86_64-*-darwin* with
HAS_X86_THREAD_STATE64_*.
Added value 1 in the above AC_DEFINE's. Important for the upcoming
Leopard.
* include/private/gcconfig.h: Modified X86_64 define for Darwin.
Removed __x86_64__ check in POWERPC section. Added base definitions
for the X86_64 Darwin port.
* include/private/gc_priv.h: Added GC_MACH_HEADER and GC_MACH_SECTION
to distinguish between 32 and 64-bit applications. Added definitions
for X86_64 Darwin.
* darwin_stop_world.c: Added HAS_X86_THREAD_STATE64___RAX. And
replaced HAS_I386_THREAD_STATE___EAX with HAS_X86_THREAD_STATE32___EAX.
(GC_push_all_stacks): Added code for X86_64 Darwin. Even for the
!DARWIN_DONT_PARSE_STACK. Maybe obsolete.
* dyn_load.c (GC_dyld_name_for_hdr): Use GC_MACH_HEADER.
(GC_dyld_image_add): Use GC_MACH_HEADER and GC_MACH_SECTION.
Distinguish between getsectbynamefromheader_64 and
getsectbynamefromheader.
* os_dep.c (catch_exception_raise): Introduce exception definition for
X86_64 Darwin. Replaced old i386_EXCEPTION_STATE_* definition with
x86_EXCEPTION_STATE32_*. Add X86_64 for exc_state.faultvaddr.


== [7.0alpha7] 2006-09-19 ==

* More 6.7 changes.
* Declare GC_dump() in gc.h.
* Add --enable-large-config, which just defines the LARGE_CONFIG macro.
* Make GlobalAlloc address alignment a bit more intuitive (thanks to
Charles Mills).
* Use #elif in the definitions of GET_MEM.
* Overhaul porting.html.  Remove corresponding text from README.
* Fix typo in DARWIN section of gcconfig.h.
* Fix Darwin thread memory leak (thanks to Bruce Mitchener).
* Update x86 AO_test_and_set implementation to use "=q".
* Add $(EXEEXT) to many tests in tests/tests.am.  (Corresponds to a
6.7 fix, which no longer applied.)
* Fix Darwin/PPC port.
* Fix Cygwin/threads port.
* Fix gcj malloc support.
* For GNU-style make, don't build libatomic_ops unless threads are requested.
This should allow single-threaded builds on platforms which do not
currently support libatomic_ops.
* Clean up and hopefully fix the CFLAGS calculation for GNU build.
(Substantially improves things on HP/UX.)
* Integrated Andrei Polushin's Visual C++ patches.  These provide for
stack traces, better C++ debug support, and better log file handling.
Note that these change the location of the log file to a the path of the
executable with a .log extension.  To get the old behavior back, define
OLD_WIN32_LOG_FILE.  For the time being, I'm checking his project
files and the like into a windows-untested subdirectory.  They
are almost certainly already out of date, but better than what we had
before.
* Fixed some win32 threads bugs, and added support for _beginthreadex.
* Fix zero size thread local allocation so that explicit deallocation
works correctly.
* Removed serious bug in GC_malloc_uncollectable(large size).
* Do not try to do thread-local gcj allocation in incremental mode.  There
are races in setting up the descriptor.
* Add GC_INIT() to middle.c, fix some more GC_printfn calls.
* Some assertions erroneously used I_HOLD_LOCK() negatively, even though
it can now spuriously return TRUE.
* Rename SUNOS5 macro and OS name to SOLARIS and SUNOS5DL to SOLARISDL.
* On Linux and some Un*x variants, allocate memory by first trying sbrk,
and then switching to mmap if that fails.
* Fixed /proc/x/maps reading to deal with asynchronous deletions.
* Fix REDIRECT_MALLOC with threads on Linux.  It now usually seems to work
with ugly hacks that include having calloc behave differently when it is
called from ld.so or the pthreads library.  A reasonable amount of
infrastructure was added to support some of this.  (Thanks to Roland McGrath
for ideas and information.)
* Import various updated build scripts.
* Add GC_register_has_static_roots_callback (thanks to Andrew Haley).
* Fix serious bugs in GC_malloc_atomic_uncollectable().
* Return GC_SUCCESS form GC_get_stack_base().
* Fix several atomic_ops problems on IA64 with HP Compiler.
* Update to atomic_ops-1.2.
* Fix hb_n_marks description and reclaim.c assertion.
* Various additional win32 threads fixes.
* Enable GC_ASSERTIONS for Debug build with NT_THREADS_MAKEFILE.


== [7.0alpha5] 2005-09-29 ==

* More 6.6, 6.7 changes.
* Some Solaris fixes, including some more general changes in how
the assembly pieces of mach_dep.c are handled.
* Removed a lot of SOLARIS_THREADS-specific code that was only
needed with the old implementation.  This included many (mostly no-op)
versions of GC_is_fresh.
* Don't use atomic_ops in gc_locks.h unless we need threads.
* Fixed USE_MARK_BITS, which is once again the default without PARALLEL_MARK.
* Removed Solaris GC_INIT hack.  It's a workaround for a long dead bug,
and it seemed to be wrong anyway.
* Changed win32_threads.c to require preprocessor-based interception
of thread routines by default.  A client call to GC_use_DllMain is
now required to get the old behavior in which DllMain is used to implicitly
register threads.  This was done for uniformity with other platforms, and
because the DllMain solution seemed to require very tricky code which,
at least in the past, imposed hard bounds on the number of threads.
* Many small changes to make thread support work again on Cygwin.
* Moved definition of allocator lock etc. to pthread_support.c and
win32_threads.c for those two cases.
* Got rid of the FASTLOCK() machinery.  It doesn't seem useful on modern
platforms.
* Cleaned up the uncollectible allocation routines, speeding up the
slower paths.  The code did enough unnecessary work off the critical path
that the underlying logic was getting hard to extract.
* No longer turn off THREAD_LOCAL_ALLOC with DBG_HDRS_ALL.  Indications
are it just works, and I think the reasons for it not working disappeared
a while ago.
* Fixed bugs in hb_n_marks calculation and assertion.
* Don't use __builtin_expect for pre-3.0 gcc.
* Define GWW_VDB only for recent Microsoft tool chains.
* Add overview.html to doc directory.
* Fix NT_STATIC_THREADS_MAKEFILE, various compiler warnings.
* Made thread local allocation sort of work with Cygwin.  The code should
be there to deal with other Windows variants, But non-Cygwin Windows
threads need more bug fixes.


== [7.0alpha4] 2005-08-02 ==

* Various 6.5, 6.6 changes.
* Removed GC_brief_async_signal_safe_sleep and used atomic_ops instead
(thanks to Ben Maurer).
* Integrated build patches from Davide Angelocola and Petter Urkedal.
* Fix dynamic-linker-based pthread call redirection.
* Renamed RS6000 to POWERPC/AIX.
* Allow recovery from SIGSEGV in marker on Linux.  This works around
a race in thread stack marking if /proc is used to find roots.  We do
that by default with malloc redirection and threads.  This involved
moving some GC_find_limit and SETJMP related declarations to gc_priv.h.
* Added doc/porting.html file.
* Added ADD_HEAP_GUARD_PAGES for sbrk/*nix platforms to debug extreme
memory overwrite errors.
* Added trivial NO_INCREMENTAL flag to facilitate debugging.
* Added GC_getattr_np-based GC_get_stack_base (untested).
* Separated thread local allocation into a separate file and added the
beginning of win32 support for that.


== [7.0alpha3] 2005-04-28 ==

* Added support for dlopen-based interception of pthread functions.
This is only half done.  The gc.h redefinitions currently interfere.
* Integrated major automake overhaul from Petter Urkedal.


== [7.0alpha2] 2005-04-07 ==

* GC_bytes_allocd was incremented by a possibly uninitialized variable
in GC_generic_malloc_inner.  (Bug introduced in gc7.0alpha1.  Thanks
to Ben Hutchings for tracking it down.)
* Win32 fixes (thanks to Ben Hutchings and Maurizio Vairani).
* Integrated Ben Hutchings' GetWriteWatch-based virtual dirty bit
implementation for win32.
* Removed pc_gc.tar and floppy targets in Makefile.direct.  Removed
pc_excludes file.
* No longer include GC_bytes_wasted when evaluating allocation progress.
Since we are now counting live memory, it no longer makes sense.
* Applied Davide Angelocola's configure patch.  There are now separate
Makefile.am's in the cord and tests subdirectory, more tests, etc.
* Renamed configure.in to configure.ac.
* Merged a very small number of Nathanael Nerode's configure.ac
cleanups from the gcc tree.  Unfortunately, that file is a bit
different from ours.
* Changed EINTR handling in sem_wait slightly.
* Restructure the root marking code.  Remove all traces of
USE_GENERIC_PUSH_REGS, and effectively make it the default.
Make it easier to pass a context pointer to the mark routine, in
case we ever want to do precise stack marking.
* Replace GC_start_blocking() and GC_end_blocking() with GC_do_blocking().
This remains undocumented, and only implemented for pthreads.  But it
removes an otherwise unavoidable race with stores of callee-save
registers.
* Fix GC_n_mark_bits for the default MARK_BIT_PER_GRANULE case.  This
resulted in bogus complaints in heap dumps.
* Upgrade to libatomic_ops-1.0, and update build structure to match.
* Remove SRC_M3 support. Clean up lock initialization code in misc.c.
* Removed gc_local_alloc.h.  If THREAD_LOCAL_ALLOC is defined, the
thread local allocation routines are now called automatically.
* Renamed gc_inl.h back to gc_inline.h.  Changed the interface appreciably
since locking has turned into a dominant issue, and in-line allocation
only makes sense if it's no worse than thread-local allocation.
Gc_inline.h is now also used to implement thread-local allocation.
* Finished replacing stubborn allocation with manual write barrier.
Untested.
* Use thread-local allocation code by default.
* Added GC_register_my_thread and friends for Posix and win32.
* Patch for GWW_VDB from Ben Hutchings.
* Removed explicit THREAD_LOCAL_ALLOC tests, since that now always
redefines GC_malloc.
* Removed now unused AIX memory allocation code.
* Various minor fixes for bugs introduced in 7.0alpha1.


== [7.0alpha1] 2004-11-09 ==

* Remove GC_PROTO, VOLATILE, GC_PTR, and GC_CONST.  Assume ANSI C compiler
and use ANSI constructs unconditionally.
* Introduce #elif and #error in some of the appropriate places.
* Remove GC_printf cruft. Use stdargs.
* Remove separate Solaris threads support.  Use the more generic Posix
implementation.
* Use atomic_ops for atomic operations and memory barriers.
* Clean up MPROTECT_VDB implementation.  Use SA_SIGINFO wherever
possible.
* Remove broken SIGNALS stuff.
* Use size_t instead of word, where appropriate.
* Add .S.o rule to Makefile.am.
* Officially discontinue SunOS4, several old flavors of M68K (SunOS4,
A/UX, HP), IBM PC/RTs and RISCOS/Irix4.  (I doubt the old code worked.
If anyone cares, these should be easy to resurrect.)
* Add EXPECT() in some critical places.
* Redefined hb_sz and hb_body to deal with bytes rather than words.
This affected a great deal of code.  I would like to consistently use
byte offsets and sizes where there's not a convincing reason to do
otherwise.
* Redefined several other variables (GC_mem_found, GC_words_allocd)
etc. to use units of bytes.  Most of these were also renamed to
reflect that fact.
* Killed as many "register" declarations as possible.
* Partially replaced stubborn allocation with manual write barrier.
It's currently broken.
* Restructured mark code, to allow mark bits to be kept either on
a per allocation granule or per object basis.  The emphasis is
now on the -DUSE_MARK_BYTES option, since individual bits perform
quite badly on hyper-threaded P4s, and are probably suboptimal on
other architectures.  -DUSE_MARK_BITS is currently broken, and may
be resurrected only for the single-threaded case.  This significantly
reduced the cache footprint required by auxiliary GC data structures.
It also reduces space overhead for small heaps.  It probably slows
things down slightly if interior pointers are very common.
* As part of the above, we now maintain an approximate count of set
mark bits in each heap block.
* As part of the above, the semantics of hb_map changed drastically.
For MARK_BIT_PER_OBJ, it doesn't exist.  For MARK_BIT_PER_GRANULE,
it is purely a way to replace a mod instruction with a table lookup.
(Somewhat to my surprise, this still wins on modern hardware.)
* Removed PRINTSTATS, GATHERSTATS, and SILENT macros.  Everything is
now controlled by GC_print_stats variable and GC_PRINT_STATS
and new GC_PRINT_VERBOSE_STATS environment variables.
* Add GC_log_printf and use it consistently for logging output.
* Unconditionally count the objects we reclaim in the sweep phase.
For thread local allocation, we need that anyway, and we expect
that's increasingly the only case that matters.  And it simplifies
the code.  In general expect minor performance hacks that benefit
only the single-threaded case to disappear.
* Remove GC_quiet from gc.h and elsewhere.
* Changed the heap expansion heuristic, and the definition of
GC_free_space_divisor, to refer to live data size, instead of total
heap size.  I believe this is much more robust.  It wasn't previously
possible, because we didn't have access to live data size.
* Thread local allocation added the extra byte in twice: Once in
thread_local_alloc, and once in malloc_many.
* Removed GC_malloc_words_small and GC_gcj_fast_malloc.  A new
mechanism based on the thread local allocation data structures
is expected to be added instead.  This should allow inlined code
that is both fast and doesn't rely on collector internals.
* Changed both free lists and reclaim lists to be indexed by granules
instead of words, norming halving their size.
* MERGE_SIZE is now the only option, and the macro was removed.
(Without it, we need a memory reference to GC_all_interior_pointers
anyway.  Thus it costs us nothing.)
* Change GC_size_map to map to granules instead of words.  Make sure
that every possible size up to TINY_FREELISTS is present.
* Split of macros need for fast inline allocation into gc_tiny_fl.h
in anticipation of a new inline allocator that doesn't rely on GC
internals.
* Changed thread local allocation to use GRANULE_BYTES and TINY_FREELISTS
in anticipation of a merge with the inline allocation code.
* Removed ALIGN_DOUBLE.  This is mostly handled by GRANULE_BYTES.
* Make locking on most platforms conditional on GC_need_to_lock.


== [6.9] ==

* Fix typo in PREFETCH implementation for X86_64 (thanks to Peter Wang).
* Fix M68K LINUX port (thanks to Debian packagers).
* __GNUC__ was misspelled as __GNUC in new_gc_alloc.h (thanks to Peter Wang).
* Integrated Allan Hsu's patch for OS X VM deallocation problems.
* Applied FreeBSD/X86_64 patch.


== [6.8] 2006-07-08 ==

* 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).


== [6.7] 2006-03-03 ==

* Add "int" to Solaris "end" and "etext" declaration in gc.h.  Declared
the symbols with underscores and as arrays, since that's what's actually
used.  Perhaps this could all just be removed.  (Thanks to John Bowman.)
* Fixed ARM GC_test_and_set code (thanks to Kazu Hirata and Paul Brook).
* Added casts for assignments to hb_last_reclaimed, which truncate the
value.  Added a cast to GC_adj_words_allocd.  Use GetModuleHandleA
when retrieving a handle to kernel32.dll under win32.
* Added Tandem S-Series support.  (Thanks to Craig McDaniel.  A modified
version of his patch was applied, and hence breakage is probably not
his fault.)
* Remove spurious gc:: qualifier for operator delete[] in gc_cpp.h (thanks
to Hanno Boeck).
* Changed a test for LINUX in config_macros.h to one for __linux__.
* Add prototypes for GC_finalizer_notifier and GC_thr_init (thanks to
David Ayers).
* Use ld instead of nonexistent ldz instruction in Darwin FindTopOfStack
(thanks to Andreas Tobler).
* Add support for Darwin/X86 (thanks to Geoff Norton and the Mono
developers).
* Merge in some recent gcc fixes.  Add ppc64 asm code.  (Thanks to
Bryce McKinlay and other GCJ developers.)
* Scan MEM_PRIVATE sections under Windows ME and predecessors.
* Interior pointers with some largish offsets into large objects could
be ignored, if GC_all_interior_pointers was set.  (Oddly this worked
correctly for stack references if it was not set.  Otherwise it failed
for both stack and heap references.  Thanks to Andrew McKinlay for the
critical test case.)
* Integrated Tatsuya Bizenn's NETBSD threads support, with some
untested changes.
* Added GC_strdup and friends to make leak detection work correctly
for strdup clients (thanks to Jon Moore).  Fixed the existing strdup
with malloc redirection to handle a null malloc return correctly.


== [6.6] 2005-09-09 ==

* Fix CPU count detection for Irix and FreeBSD (thanks to Dan Bonachea).
* Integrate Dan Bonachea's patch for the IBM XLC compiler on Darwin.
* Integrated Andreas Tobler's FreeBSD/PowerPC patch.
* Don't access the GC thread structure from the restart handler.  It's
unsafe, since the handler may run too late.  (Thanks to Ben Maurer for
tracking this down.)
* Applied Christian Thalinger's patch to change comment syntax in
alpha_mach_dep.S.
* Added test for GC_no_dls in GC_dyld_image_add for DARWIN (thanks to
Juan Jose Garcia-Ripoll).
* Use LINUX_STACKBOTTOM for Linux/SH and LINUX/ARM (thanks to
Sugioka Toshinobu and Christian Thalinger).
* Rewrote GC_parse_map_entry.  This assumed a fixed column layout of
/proc/self/maps on Linux.  This ceased to be true about 2 years ago.
The old code is probably quite problematic with -DREDIRECT_MALLOC.  It
is also used by default for IA64, though I haven't seen actual failures
there.
* More consistently define HBLKSIZE to 4096 on 64 bit architectures with
4K pages (thanks to Andrew Haley).
* With win32 threads, GC_stop_world needs to acquire GC_write_cs (thanks
to Ben Hutchings for the observation and patch).
* Move up struct callinfo declaration to make gcc 4.0.2 happy.


== [6.5] 2005-05-22 ==

* Integrated Paolo Molaro's patch to deal with EINTR in sem_wait.
* Make GC_approx_sp() write to dummy location to ensure that stack
is grown here, when sp looks reasonable, rather than later, when
it might look like a bad memory reference.  (Problem was never
observed that I know of.  But on rereading the code it seemed
dubious.)
* Separate out GC_with_callee_saves_pushed and sometimes call
it from GC_suspend_handler in pthread_stop_world.c.  Callee-save
register values sometimes failed to get traced under HP/UX on
PA-RISC.  Linux/IA64 had the same problem, though non-stacked
callee-save registers seem to be so rarely used there that nobody
ever noticed.
* Integrated an ancient Darwin powerpc_darwin_machine_dep.s patch
from Andreas Tobler, which I had lost.
* Fix compare_and_exchange implementation for gcc/IA64 to deal with
pickier compiler versions.
* Fixed Itanium 32-bit ABI support (HP/UX).  In particular, the
compare_and_exchange implementation didn't consider that possibility.
* Undefine GC_pthread_detach in win32_threads.c (thanks to
Tommaso Tagliapietra).
* Fixed inclusion of frame.h for NETBSD in os_dep.c.
* Applied Dan Bonachea's patch to use mmap on AIX.
* Several fixes to resurrect the Irix port on recent OS versions.
* Change ALPHA to use LINUX_STACKBOTTOM.
* Change SPARC64/LINUX to also use LINUX_STACKBOTTOM.  Deal with potential
bad values of __libc_stack_end on that platform (thanks to David Miller).
* Relax gctest to allow larger heap if ALIGN_DOUBLE isn't set.
(Unnecessary in 7.0)
* Force a define of __STDC__=0 for the IBM compiler on AIX, so that
we get prototypes.  (Unnecessary in 7.0)
* GC_INIT definition for AIX and CYGWIN referred to DATASTART and DATAEND
which are only defined in private include files.
* Integrated some small gcconfig.h patches from Dan Bonachea.  Also
relaxed assertion about FreeBSD stack size in pthread_support.c.
* Integrated Andrew Begel's darwin_stop_world.c patch for 64-bit
support.  This may need additional work.
* Avoided potentially infinite recursion in GC_save_callers if
the system backtrace calls malloc.  The workaround currently requires
__thread support if this code is used with threads.
* Avoided another similar infinite recursion by conditionally
invoking GC_save_callers in alloc.c (thanks to Matthias Andree
for helping to track down both of these).
* Removed all traces of aix_irix_threads.c.  AIX and Irix now use
pthread_support.c and pthread_stop_world.c.  The old code appeared
to be unreliable for AIX, and was not regularly maintained.
* On Irix, ignore segments with MA_FETCHOP or MA_NOTCACHED attributed;
they're not always safe to read.
* Fixed a previously vacuous assertion (diagnosed by the SGI compiler)
in GC_remove_from_fl.
* Fix stack_size assertion in GC_pthread_create.
* Fix assertion in GC_steal_mark_stack.


== [6.4] 2004-12-21 ==

* Merge gcconfig.h changes from gcc tree.
* Unconditionally include gc_priv.h in solaris_pthreads.c, win32_threads.h,
aix_irix_threads.c, and solaris_threads.c to get thread definitions.
* Start marker threads in GC_thr_init, so that they get started even
if no other threads are ever started.  (Oddly enough, the parallel
collector worked correctly, though not well, with no helper threads.)
* Go ahead and split large blocks in GC_allochblk_nth if GC_dont_gc
is set (thanks to Alexander Petrossian).
* GC_PRINT_BACK_HEIGHT would deadlock with thread support.
* Let in_progress_space in backgraph.s grow dynamically.
* Fix README.solaris2.  The GC_thr_init() hack doesn't work anymore.
* Convert GC_finalizer_mem_freed to bytes in allchblk.c.
* Add missing declaration for GC_generic_malloc_words_small_inner.
Without it, s390x breaks.  (Thanks to Ulrich Weigand.)
* Applied several MacOSX patches to support older tool chains (thanks
to Stefan Ring).
* Bug fix for NetBSD/amd64 (thanks to Marc Recht).
* Add NetBSD/sh3 support (thanks to Uchiyama Yasushi).
* Fixed an uninitialized variable in cordprnt.c.
* Eliminated some, but not all, gcc -Wall warnings.
* Changed some old style casts to reinterpret_cast in new_gc_alloc.h
(thanks to Dan Grayson).
* GC_extend_size_map shouldn't adjust for GC_all_interior_pointers if
GC_DONT_ADD_BYTE_AT_END is set.
* Changed some (long) casts to (word) in preparation for win64 (thanks
to Peter Colson).
* Changed "int stack_size" declaration in pthread_support.c to use
size_t.  (Only mattered with GC_ASSERTIONS enabled.)
* Added CRIS (etrax) support (thanks to Simon Posnjak and Hans-Peter Nilsson).
* Removed GC_IGNORE_FB frame buffer recognition, and replaced
it with a check that the mapping type is MEM_IMAGE.
In theory, this should work much better, but it is a high
risk change for win32.  (Thanks to Ashley Bone for the crucial
experimental data behind this, and to Rutger Ovidius for
some further experiments.)
* GC_allochblk_nth incremented GC_words_wasted by bytes rather than
words.
* Consider GC_words_wasted in GC_adj_words_allocd only if it is within
reason.  (A hack to avoid some extremely unlikely scenarios in which
we manage to allocate only "wasted" space.  7.0 has a better fix.)
* Changed PowerPC GC_clear implementation to use lwsync instead of
eieio, since the documentation recommends against eieio, and
it seems to be incorrect if the preceding memory op is a load.
* Fixed print_block_list to print the correct kind number for
STUBBORN (thanks to Rutger Ovidius).
* Have configure.in generate an error if it is asked to support
pthreads, but doesn't know how to.
* Added Kazuhiro Inaoka's patch for Renesas M32R support.
* Have the GNU build mechanism link with -ldl.  Rename THREADLIBS
to THREADDLLIBS to reflect this.  (Thanks to Sven Verdoolaege.)
* Added Hannes Mehnert's patch for FreeBSD/SPARC support.
* Merged some FreeBSD specific patches to threadlibs.c and dyn_load.c.
(Thanks to John Merryweather Cooper.)
* Define MPROTECT_VDB on MACOSX only if threads are being used, since the
dirty page tracking mechanism uses threads.  (This avoids an undefined
reference to _GC_darwin_register_mach_handler_thread.)
* By popular demand, use __libc symbols only if we are built with
USE_LIBC_PRIVATES, which is off by default, and not otherwise documented.
* Ignore GC_enable_incremental() requests when KEEP_BACK_PTRS is set.
The GC itself will dirty lots of pages in this cases, probably making
it counterproductive on all platforms.  And the DARWIN port crashes.


== [6.3] 2004-07-08 ==

* Compile test_cpp.cc with CXXCOMPILE instead of COMPILE.
* Very large allocations could cause a collector hang.  Correct
calculation of GC_collect_at_heapsize.
* GC_print_hblkfreelist printed some bogus results if USE_MUNMAP
was defined.
* Include gc_config_macros.h in threadlibs.c.
* Correct MacOSX thread stop code (thanks to Dick Porter).
* SMALL_OBJ definition was off by one.  This could cause crashes
at startup.  (Thanks to Zoltan Varga for narrowing this down to
a trivial test case.)
* Integrate Paolo Molaro's patch to deal with a race in the Darwin
thread stopping code.
* Changed X86_64 implementation to use SA_SIGINFO in the MPROTECT_VDB
implementation.  The old approach appears to have been broken by
recent kernels.
* Added GC_ATTR_UNUSED to eliminate a warning in gc_allocator.h (thanks
to Andrew Begel).
* Fix GC_task_self declaration in os_dep.c (thanks to Andrew Pinski).
* Increase INITIAL_BUF_SZ in os_dep.c for Solaris /proc reads.


== [6.3alpha6] 2004-05-06 ==

* Define USE_GENERIC_PUSH_REGS for NetBSD/M68K.
* Fixed the X86_64 PREFETCH macros to correctly handle ia32e (which uses
different prefetch instructions from AMD64).  (Thanks to H.J. Lu.)
* GC_config_macros.h did not correctly define GC_WIN32_THREADS from
GC_THREADS.
* Added simple_example.html.
* Merged Andrew Gray's patch to correctly restore signal handlers on
FreeBSD.
* Merged a patch from Andreas Jaeger to deal with prefetch-related warnings
on x86-64.  Added some other casts so that the PREFETCH macros
always get a ptr_t argument.  Removed some casts in the PREFETCH
implementations.
* Added a header guard for gc_allocator.h and changed GC_debug_free to
clobber contents of deallocated object (suggested by Jesse Jones).
* The signal masking code in pthread_stop_world.c contained some errors.
In particular SIGSEGV was masked in the handler, in spite of the fact that
it wrote to the heap.  This could lead to an uncaught SIGSEGV, which
apparently became much more likely in Linux 2.6.  Also fixed some
typos, and reduced code duplication in the same area.
* Remove ltconfig, clean up configure messages for DG/UX (thanks to
Adrian Bunk for the patches).
* Integrated NetBSD/OpenBSD patches from Marc Recht and Matthias Drochner.


== [6.3alpha5] 2004-03-30 ==

* Fix & vs && typo in GC_generic_malloc and
GC_generic_malloc_ignore_off_page.  (Propagated from the gcc tree.)
* Removed SA_NODEFER hack from NetBSD and Solaris write-protect handler.
(According to Christian Limpach, the NetBSD problem is fixed.
Presumably so is the