* tests/disclaim_weakmap_test.c (weakmap.links): Add comment.
* tests/disclaim_weakmap_test.c (weakmap_disclaim): If wm->links is
null then return 0 (do not use wm).
* tests/disclaim_weakmap_test.c (weakmap_destroy): Set links to null.
(fix of commit 8e6460052)
* include/private/gc_priv.h [THREADS] (GC_in_thread_creation): Declare
not only for pthreads.
* misc.c [!DONT_USE_ATEXIT && THREADS] (GC_exit_check): Set
GC_in_thread_creation to true before calling GC_gcollect for windows
threads as well.
* win32_threads.c (GC_in_thread_creation): Change STATIC to GC_INNER.
* extra/msvc_dbg.c (sym_namebuf_u): New union type.
* extra/msvc_dbg.c (GetSymbolNameFromAddress): Use sym_namebuf_u
instead of anonymous union.
* os_dep.c [MPROTECT_VDB && DARWIN] (mp_reply_s, mp_msg_s): Move struct
type definition out of GC_mprotect_thread (adding mp_ prefix).
* tests/test_cpp.cc (C.Test, D.Test, F.Test): Do not fail on
nFreed>=0.8*nAllocated[F] assertion violation if GC_get_find_leak() returns
non-zero; replace .8*nAllocated[F] to (nAllocated[F]/5)*4 to avoid
floating-point operations.
The macro (SKIP_LEAKED_OBJECTS_PRINTING) might be useful for running
GC general tests in the find-leak mode.
* reclaim.c (GC_print_all_errors): Do not call GC_print_heap_obj
if SKIP_LEAKED_OBJECTS_PRINTING is defined.
* configure.ac (use_parallel_mark, use_thread_local_alloc): New
variable (set to enable_parallel_mark and enable_thread_local_alloc,
respectively, if threads are enabled).
* configure.ac (PARALLEL_MARK, THREAD_LOCAL_ALLOC): Group and move
AC_DEFINE down (the definition depends on the final value of
use_parallel_mark or use_thread_local_alloc, respectively).
* configure.ac (THREAD_LOCAL_ALLOC): Move AM_CONDITIONAL down to use
the final value of use_thread_local_alloc; do not check THREADS.
* configure.ac (handle-fork): Move AC_ARG_ENABLE and its processing
down to use the final value of use_parallel_mark (the latter is used
instead of enable_parallel_mark).
* configure.ac [$with_libatomic_ops!=none && $need_atomic_ops_asm!=true]
(use_thread_local_alloc): Set explicitly to "no" if
BASE_ATOMIC_OPS_EMULATED is defined.
* configure.ac [$with_libatomic_ops!=none && $need_atomic_ops_asm!=true
&& $use_parallel_mark!=no] (use_parallel_mark): Set explicitly to "no"
in case of a failure of AC_TRY_LINK of a code snippet calling
AO_fetch_and_add and AO_compare_and_swap (provided AO_REQUIRE_CAS is
defined).
* include/private/gc_pmark.h [USE_MARK_BYTES && PARALLEL_MARK
&& AO_HAVE_char_store] (SET_MARK_BIT_EXIT_IF_SET): Do not use
AO_char_load() and AO_char_store() if BASE_ATOMIC_OPS_EMULATED.
* configure.ac [$with_libatomic_ops!=none && $need_atomic_ops_asm!=true]
(HAVE_LOCKFREE_AO_OR): New AC_DEFINE (defined in case of success of
AC_TRY_LINK of a code snippet calling AO_or).
* include/private/gc_atomic_ops.h [GC_BUILTIN_ATOMIC
&& !NO_LOCKFREE_AO_OR] (HAVE_LOCKFREE_AO_OR): Define (to 1).
* include/private/gc_priv.h [THREADS] (GC_acquire_dirty_lock,
GC_release_dirty_lock): Define to no-op only if HAVE_LOCKFREE_AO_OR
or GC_DISABLE_INCREMENTAL.
* os_dep.c [!GC_DISABLE_INCREMENTAL] (async_set_pht_entry_from_index):
Use set_pht_entry_from_index_concurrent() only if HAVE_LOCKFREE_AO_OR
(or not THREADS).
* include/private/gc_locks.h [BASE_ATOMIC_OPS_EMULATED && GC_PTHREADS]
(USE_PTHREAD_LOCKS): Define.
* include/private/gc_locks.h [BASE_ATOMIC_OPS_EMULATED && GC_PTHREADS]
(USE_SPIN_LOCK): Undefine.
* pthread_support.c [(USE_SPIN_LOCK || !NO_PTHREAD_TRYLOCK)
&& AO_CLEAR] (GC_pause): Do not use AO_compiler_barrier() if
BASE_ATOMIC_OPS_EMULATED.
* pthread_support.c [AO_HAVE_char_load] (is_collecting): Do not use
AO_char_load() if BASE_ATOMIC_OPS_EMULATED.
Luke Street
Ivan Maidanski