Ivan Maidanski [Mon, 18 Sep 2017 07:54:37 +0000 (10:54 +0300)]
Fix SIGSEGV in mark_from called from do_local_mark if WRAP_MARK_SOME
Issue #179 (bdwgc).
Parallel marker is disabled (for now) if there is a chance of
scanning unmapped data roots (because GC_do_local_mark is not
prepared to deal with memory protection faults gracefully).
Ivan Maidanski [Wed, 30 Aug 2017 07:00:46 +0000 (10:00 +0300)]
Remove unnecessary type casts of printf arguments to unsigned long
(code refactoring)
* alloc.c [!NO_DEBUGGING] (GC_print_heap_sects): Remove unnecessary
cast to unsigned long in GC_*_printf call and adjust printf format
specifier to match the argument type.
* checksums.c [CHECKSUMS] (GC_checksum): Likewise.
* mark.c [PARALLEL_MARK] (GC_mark_local): Likewise.
* tests/test.c (typed_test): Likewise.
* checksums.c [CHECKSUMS] (GC_checksum): Change type of GC_n_clean,
GC_n_dirty from int to unsigned long.
Ivan Maidanski [Mon, 28 Aug 2017 06:27:07 +0000 (09:27 +0300)]
Fix GC_remove_specific invocation from remove_all_threads_but_me
(fix commits fcfae7f, 38e65ea)
* include/private/specific.h (GC_remove_specific): Define as macro
(calls GC_remove_specific_after_fork).
* include/private/specific.h (GC_remove_specific_after_fork): New
GC_INNER function declaration.
* include/private/thread_local_alloc.h [USE_PTHREAD_SPECIFIC
|| USE_COMPILER_TLS || USE_WIN32_COMPILER_TLS || USE_WIN32_SPECIFIC]
(GC_remove_specific_after_fork): New macro (defined to no-op).
* pthread_support.c [CAN_HANDLE_FORK && THREAD_LOCAL_ALLOC]
(GC_remove_all_threads_but_me): Call GC_remove_specific_after_fork
instead of GC_remove_specific (i.e. delete thread-specific control data
for the given thread instead of the current one).
* win32_threads.c [CAN_HANDLE_FORK && THREAD_LOCAL_ALLOC] Like
* specific.c [USE_CUSTOM_SPECIFIC] (GC_setspecific): Add assertion that
the allocation lock is held; remove the corresponding comment.
* specific.c [USE_CUSTOM_SPECIFIC] (GC_remove_specific): Replace to
GC_remove_specific_after_fork (add t argument); replace self local
variable with t argument; update comment;
* specific.c [USE_CUSTOM_SPECIFIC && CAN_HANDLE_FORK]
(GC_remove_specific_after_fork): Add assertion that the allocation lock
is held; add comment.
Ivan Maidanski [Thu, 24 Aug 2017 22:05:16 +0000 (01:05 +0300)]
Add debug logging to new_thread about GC_threads hash table collisions
* pthread_support.c [DEBUG_THREADS] (GC_new_thread): Call GC_log_printf
(with the appropriate message) if a GC_threads[] entry already exists
at the given hv index (excluding the detached threads those id is
already reused).
* win32_threads.c [DEBUG_THREADS] (GC_new_thread): Call GC_log_printf
to report that a new thread is created; call GC_log_printf (with the
appropriate message) if a GC_threads[] entry already exists at the
given hv index; remove useless comment about the result of
GC_INTERNAL_MALLOC.
Ivan Maidanski [Thu, 24 Aug 2017 08:34:05 +0000 (11:34 +0300)]
Eliminate most of collisions in GC_threads on Linux/x64
On some targets (e.g., Linux/x64) pthread_t values always have zero
in the lowest byte (e.g. if pthread_t is actually a page-aligned
pointer) thus causing all the created thread descriptors to have
a collision at GC_threads[0]. This commit mixes 3 lowest bytes
of thread id with a XOR operation (thus greatly reduces the
probability of collisions in GC_threads).
* include/private/pthread_support.h (THREAD_TABLE_SZ): Do not
define if already defined; refine comment.
* pthread_support.c (THREAD_TABLE_INDEX): New macro (similar to that
in win32_threads.c).
* pthread_support.c (GC_new_thread, GC_delete_thread,
GC_delete_gc_thread, GC_lookup_thread): Replace
NUMERIC_THREAD_ID(id)%THREAD_TABLE_SZ to THREAD_TABLE_INDEX(id).
* pthread_support.c (GC_lookup_thread): Remove hv local variable.
* win32_threads.c (THREAD_TABLE_INDEX): Replace (id>>2) to
((id>>16)^(id>>8)^id).
* win32_threads.c [GC_PTHREADS] (GC_lookup_pthread): Define win32_id
local variable to pass it to THREAD_TABLE_INDEX() instead of passing
GET_PTHREAD_MAP_CACHE(id) directly.
Ivan Maidanski [Wed, 23 Aug 2017 08:46:41 +0000 (11:46 +0300)]
Change type of THREAD_TABLE_INDEX result to int in win32_threads.c
(code refactoring)
* win32_threads.c (THREAD_TABLE_INDEX): Cast result to int; remove cast
of argument to word type; add comment.
* win32_threads.c (GC_new_thread, GC_delete_gc_thread_no_free,
GC_delete_thread): Change type of hv local variable from word to int.
* win32_threads.c (GC_lookup_thread_inner): Remove hv local variable;
remove "register" keyword for p local variable.
* win32_threads.c (GC_lookup_pthread): Change type of hv_guess local
variable from word to int.
Ivan Maidanski [Tue, 22 Aug 2017 08:23:27 +0000 (11:23 +0300)]
Fix deadlock in GC_help_marker caused by use of mark_cv of parent process
The marker threads of the parent process are blocked on mark_cv at
fork. So pthread_cond_wait() malfunction (hang) is possible in the
child process without mark_cv state cleanup (reinitialization).
* pthread_support.c [PARALLEL_MARK] (mark_cv): Move static variable
definition upper to be before GC_start_mark_threads_inner).
* win32_threads.c [GC_PTHREADS_PARAMARK] (mark_cv): Likewise.
* pthread_support.c [PARALLEL_MARK && CAN_HANDLE_FORK] (mark_cv):
Do not initialize statically; add comment.
* win32_threads.c [GC_PTHREADS_PARAMARK && CAN_HANDLE_FORK] (mark_cv):
Likewise.
* pthread_support.c [PARALLEL_MARK && CAN_HANDLE_FORK]
(GC_start_mark_threads_inner): Initialize mark_cv to
PTHREAD_COND_INITIALIZER (unless available_markers_m1 <= 0 or
GC_parallel); add comment.
* win32_threads.c [GC_PTHREADS_PARAMARK && CAN_HANDLE_FORK]
(GC_start_mark_threads_inner): Likewise.
* pthread_support.c [PARALLEL_MARK] (GC_wait_marker,
GC_notify_all_marker): Add assertion that GC_parallel is true (so
mark_cv is initialized).
* win32_threads.c [GC_PTHREADS_PARAMARK] (GC_wait_marker,
GC_notify_all_marker): Likewise.
Ivan Maidanski [Tue, 22 Aug 2017 05:56:31 +0000 (08:56 +0300)]
Avoid busy waiting in mark_thread while GC_parallel is false
* mark.c [PARALLEL_MARK] (GC_help_marker): Add assertion that
GC_parallel is true (i.e. GC_markers_m1 is non-zero).
* pthread_support.c [PARALLEL_MARK && CAN_HANDLE_FORK]
(GC_start_mark_threads_inner): Set GC_markers_m1 value before starting
the first marker thread (it is already set if fork handling is off).
* win32_threads.c [GC_PTHREADS_PARAMARK && CAN_HANDLE_FORK]
(GC_start_mark_threads_inner): Likewise.
* pthread_support.c [PARALLEL_MARK] (GC_start_mark_threads_inner):
Adjust GC_markers_m1 value only if pthread_create failed.
* win32_threads.c [GC_PTHREADS_PARAMARK] (GC_start_mark_threads_inner):
Likewise.
Ivan Maidanski [Mon, 21 Aug 2017 22:09:59 +0000 (01:09 +0300)]
Eliminate unsigned fl_builder_count underflow in mark_thread
(refactor commit 0ca6d3f)
* include/private/gc_priv.h [PARALLEL_MARK] (GC_fl_builder_count):
Change type from word to signed_word.
* reclaim.c [PARALLEL_MARK] (GC_fl_builder_count): Likewise.
* mark.c [PARALLEL_MARK] (GC_wait_for_markers_init): Change type of
count local variable to signed_word; add assertion that count is
non-negative.
* pthread_support.c [PARALLEL_MARK] (GC_mark_thread): Add comment that
GC_fl_builder_count can be negative here.
* win32_threads.c [PARALLEL_MARK] (GC_mark_thread): Likewise.
* reclaim.c [PARALLEL_MARK] (GC_fl_builder_count): Refine comment.
Ivan Maidanski [Wed, 16 Aug 2017 22:39:16 +0000 (01:39 +0300)]
Fix visibility of __asan_default_options in case of shared library
(fix commit ce75cf1)
* os_dep.c [ADDRESS_SANITIZER && (UNIX_LIKE || NEED_FIND_LIMIT
|| MPROTECT_VDB)] (__asan_default_options): Do not define if
CUSTOM_ASAN_DEF_OPTIONS is defined; export it (use GC_API).
Ivan Maidanski [Wed, 9 Aug 2017 21:47:18 +0000 (00:47 +0300)]
Allow gctest and thread_leak_test with zero NTHREADS
* tests/test.c [GC_PTHREADS || GC_WIN32_THREADS] (reverse_test_inner):
Do not call fork_a_thread() if NTHREADS is 0.
* tests/test.c (MAX_FINALIZED): Increase to be correct for the case of
NTHREADS is 0.
* tests/test.c [GC_PTHREADS] (main): Do not declare and do not use th,
i local variables if NTHREADS is 0.
* tests/thread_leak_test.c (NTHREADS): Do not define if already defined.
* tests/thread_leak_test.c (main): Do not declare and do not use i,
code, t, thread_id local variables if NTHREADS is 0.
Ivan Maidanski [Wed, 9 Aug 2017 08:35:25 +0000 (11:35 +0300)]
Fix array_mark_proc to request global mark stack growth on overflow
(fix commit 3f06655)
* typd_mlc.c [PARALLEL_MARK] (GC_array_mark_proc): Set
GC_mark_stack_too_small to true if GC_push_complex_descriptor()
returned null and mark_stack_limit belongs to the global mark stack
(even if GC_parallel is true).
Ivan Maidanski [Mon, 7 Aug 2017 08:37:30 +0000 (11:37 +0300)]
Fix leak_test crash in print_callers if free() is redirected
* dbg_mlc.c [REDIRECT_MALLOC && (GC_LINUX_THREADS || GC_SOLARIS_THREADS
|| MSWIN32 || NEED_CALLINFO && GC_HAVE_BUILTIN_BACKTRACE)]
(GC_debug_free): If the object is not in the GC heap then just return
(instead of ABORT).
* malloc.c [REDIRECT_MALLOC && NEED_CALLINFO
&& GC_HAVE_BUILTIN_BACKTRACE] (GC_free): If hhdr is null (i.e. the
object is not in the GC heap) then return without the object
deallocation; add comment.
* os_dep.c [NEED_CALLINFO && GC_HAVE_BUILTIN_BACKTRACE
&& !GC_BACKTRACE_SYMBOLS_BROKEN] (GC_print_callers): Adjust comment
for free().
Ivan Maidanski [Wed, 2 Aug 2017 21:37:09 +0000 (00:37 +0300)]
Fix undefined HEAP_START in register_dynamic_libraries
* include/private/gcconfig.h [!HEAP_START] (HEAP_START): Define to 0 by
default (if not previously defined in the file).
* os_dep.c (HEAP_START): Remove.
Ivan Maidanski [Wed, 2 Aug 2017 08:13:23 +0000 (11:13 +0300)]
Fix bytes count passed to add_to_our_memory in backgraph new_back_edges
(fix commit 180b56c)
* backgraph.c [MAKE_BACK_GRAPH] (new_back_edges): Pass bytes_to_get to
GC_add_to_our_memory() (i.e. pass the same number of bytes as passed
to GET_MEM() even in case of MMAP_SUPPORTED).
Ivan Maidanski [Tue, 1 Aug 2017 22:13:37 +0000 (01:13 +0300)]
Use heap-allocated memory for local mark stack of non-marker thread
Issue #159 (bdwgc).
The memory is allocated using GET_MEM to avoid to make sure that
it is not accidentally scanned by the collector.
* include/private/gcconfig.h [!PARALLEL_MARK && THREADS]
(MIN_STACK_SIZE): Do not define.
* include/private/gcconfig.h [PARALLEL_MARK] (MIN_STACK_SIZE): Add
comment.
* mark.c [PARALLEL_MARK] (main_local_mark_stack): New static variable.
* mark.c [PARALLEL_MARK] (GC_wait_for_markers_init): Declare bytes_to_get
local variable; allocate local mark stack (using GET_MEM) and set
main_local_mark_stack (if not yet allocated by the parent process).
* mark [PARALLEL_MARK] (GC_do_parallel_mark): Remove local_mark_stack
huge local variable; use main_local_mark_stack instead of
local_mark_stack.
* pthread_support.c [GC_ASSERTIONS] (WRAP_FUNC(pthread_create)): Use
hard-coded value (65536) instead of MIN_STACK_SIZE in GC_ASSERT.
* tests/test.c [GC_PTHREADS && DEFAULT_STACK_MAYBE_SMALL]
(fork_a_thread): Do not set stack size for the created threads.
* tests/test.c [GC_PTHREADS] (main): Do not check
DEFAULT_STACK_MAYBE_SMALL.
Ivan Maidanski [Fri, 21 Jul 2017 18:42:18 +0000 (21:42 +0300)]
New API function (GC_is_incremental_mode)
* alloc.c (GC_is_incremental_mode): New public function definition.
* include/gc.h (GC_full_freq): Update comment.
* include/gc.h (GC_is_incremental_mode): New public function
declaration.
* tests/test.c [!GC_WIN32_THREADS && !GC_PTHREADS] (main): Print
"Switched to incremental mode" and friend messages only if
GC_is_incremental_mode().
* tests/test.c [!GC_PTHREADS] (main): Likewise.
Ivan Maidanski [Fri, 21 Jul 2017 17:27:12 +0000 (20:27 +0300)]
Fix deadlock in GC_suspend_thread when thread is rebuilding free list
(fix commits 62097c3, 59e2bcf)
* pthread_stop_world.c [GC_ENABLE_SUSPEND_THREAD] (GC_suspend_thread):
Move DISABLE_CANCEL() upper to cover also GC_wait_for_reclaim() and
RAISE_SIGNAL() calls.
* pthread_stop_world.c [GC_ENABLE_SUSPEND_THREAD && PARALLEL_MARK]
(GC_suspend_thread): If GC_parallel then call GC_wait_for_reclaim()
holding the allocation lock before RAISE_SIGNAL() call; add comment.
Ivan Maidanski [Thu, 20 Jul 2017 09:11:22 +0000 (12:11 +0300)]
Do not use tkill (Android)
tkill() has been deprecated in Android. Starting from NDK r11 (which
introduced android-23 API), the call exists only in libc.a (but not
in libc.so). The comment in Bionic says that tkill exists only for
Mono clients (and only for 32-bit targets).
* include/private/gcconfig.h [PLATFORM_ANDROID && CPP_WORDSZ==32]
(USE_TKILL_ON_ANDROID): Do not define if __ANDROID_API__ >= 23; add
comment.
Ivan Maidanski [Thu, 20 Jul 2017 08:39:29 +0000 (11:39 +0300)]
Replace deprecated rewind to fseek in cordxtra
rewind (unlike fseek) does not report whether the operation failed.
* cord/cordxtra.c (CORD_from_file_lazy_inner, CORD_from_file_lazy,
CORD_from_file): Replace rewind(f) to fseek(f, 0l, SEEK_SET) with
error checking; adjust ABORT message in case of fseek and ftell failure.
Ivan Maidanski [Fri, 14 Jul 2017 17:02:44 +0000 (20:02 +0300)]
Refactoring of USE_MMAP/USE_MMAP_ANON pairs definition in gcconfig.h
* include/private/gcconfig.h [POWERPC && (DARWIN || AIX) || NACL
|| I386 && (HURD || DARWIN) || (AARCH64 || ARM32 || X86_64) && DARWIN]
(USE_MMAP): Do not define explicitly (as USE_MMAP_ANON is defined
explicitly).
* include/private/gcconfig.h [NACL] (USE_MMAP_FIXED): Do not undefine
explicitly (as it is not defined by default).
* include/private/gcconfig.h [I386 && NACL] (HEAP_START): Do not define
value for the case of no USE_MMAP (as the latter is always defined).
* include/private/gcconfig.h [USE_MMAP_ANON && !USE_MMAP] (USE_MMAP):
Define.
Ivan Maidanski [Fri, 14 Jul 2017 08:11:13 +0000 (11:11 +0300)]
Fix SIGSEGV in GC_is_marked when gc_cleanup is used in leak-finding mode
Issue #162 (bdwgc).
Now finalizers and disappearing links registration is a no-op in case
of the leak-finding mode.
* finalize.c (GC_register_disappearing_link_inner): Do nothing (return
GC_UNIMPLEMENTED) if GC_find_leak.
* finalize.c (GC_register_finalizer_inner): Do nothing if GC_find_leak.
* include/gc.h (GC_find_leak): More verbose comment.
* include/gc.h (GC_debug_register_finalizer,
GC_general_register_disappearing_link): Document the case of
GC_find_leak.
Ivan Maidanski [Tue, 11 Jul 2017 22:10:42 +0000 (01:10 +0300)]
Fix deadlock in GC_suspend_thread when thread is finished
(fix commits 62097c3, 59e2bcf)
* pthread_stop_world.c [GC_ENABLE_SUSPEND_THREAD] (GC_suspend_thread):
Do not call RAISE_SIGNAL() and sem_wait() if thread has FINISHED flag
set; do not handle ESRCH error result of RAISE_SIGNAL(); add comment.
* configure.ac (USE_MUNMAP, MUNMAP_THRESHOLD): Do not define if
enable_munmap is "no" (or a blank value).
* configure.ac [with_checksums=yes]: Do not report AC_MSG_ERROR if
enable_munmap is "no".
Ivan Maidanski [Thu, 29 Jun 2017 09:38:06 +0000 (12:38 +0300)]
Call WARN() if GC_mprotect_dirty_init cannot succeed (Darwin)
(fix commit 6bfc840)
* os_dep.c [MPROTECT_VDB && DARWIN && CAN_HANDLE_FORK]
(GC_mprotect_dirty_init): Replace GC_COND_LOG_PRINTF() with WARN()
which is called before return FALSE; refine WARN message.
Ivan Maidanski [Thu, 29 Jun 2017 07:47:50 +0000 (10:47 +0300)]
Decide between memory unmapping and mprotect-based dirty bits at runtime
* allchblk.c [USE_MUNMAP && MPROTECT_VDB] (GC_has_unmapped_memory): New
function.
* include/private/gcconfig.h [USE_MUNMAP] (MPROTECT_VDB): Do not
undefine unless GWW_VDB; update comment.
* os_dep.c [MPROTECT_VDB && USE_MUNMAP] (GC_has_unmapped_memory,
GC_mprotect_dirty_init): Declare function.
* os_dep.c [MPROTECT_VDB && USE_MUNMAP] (GC_dirty_init): Ensure
mprotect-based virtual dirty bits and memory unmapping are not both
turned on (disable on of them and call WARN with the appropriate
message), and call GC_mprotect_dirty_init (unless memory unmapping is
requested or some pages are already unmapped).
* os_dep.c [MPROTECT_VDB && !USE_MUNMAP] (GC_mprotect_dirty_init):
Define as a macro (to GC_dirty_init).
* os_dep.c [MPROTECT_VDB] (GC_dirty_init): Rename to
GC_mprotect_dirty_init.
Ivan Maidanski [Tue, 27 Jun 2017 21:33:11 +0000 (00:33 +0300)]
Imply configure --single-obj-compilation if --disable-static
* configure.ac (single-obj-compilation): Set default value to yes
if enable_static=no; update help message.
* configure.ac (single_obj_compilation): Rename variable to
enable_single_obj_compilation.
Ivan Maidanski [Fri, 23 Jun 2017 11:06:11 +0000 (14:06 +0300)]
Make GC_INIT optional for clients even if thread-local allocations enabled
* tests/test.c (GC_OPT_INIT): Do not define to GC_INIT() even if
THREAD_LOCAL_ALLOC; force define to GC_INIT() if TEST_EXPLICIT_GC_INIT
macro defined.
* thread_local_alloc.c [USE_PTHREAD_SPECIFIC || USE_WIN32_SPECIFIC]
(GC_malloc_kind): Check keys_initialized before GC_getspecific call
(fall back to GC_malloc_kind_global if keys_initialized is false).
Peter Wang [Thu, 22 Jun 2017 21:25:41 +0000 (00:25 +0300)]
Fix gctest failure if PARALLEL_MARK (musl)
Issue #159 (bdwgc).
The default stack size of threads in musl is not large enough for
GC with parallel markers enabled. This commit increases the stack
of the created threads to the required minimum.
* include/private/gcconfig.h [PARALLEL_MARK && (HPUX
|| GC_DGUX386_THREADS || NO_GETCONTEXT)] (DEFAULT_STACK_MAYBE_SMALL):
New macro; add TODO item.
* include/private/gcconfig.h [PARALLEL_MARK || THREADS] (MIN_STACK_SIZE):
New macro.
* pthread_support.c (MIN_STACK_SIZE): Do not define.
* pthread_support.c (GC_start_mark_threads_inner): Check
DEFAULT_STACK_MAYBE_SMALL macro instead of HPUX or GC_DGUX386_THREADS.
* pthread_support.c [DEFAULT_STACK_MAYBE_SMALL]
(GC_start_mark_threads_inner): Do not set stack size if old_size is 0.
* pthread_support.c [GC_ASSERTIONS] (WRAP_FUNC(pthread_create)): Use
MIN_STACK_SIZE in GC_ASSERT.
* tests/test.c [GC_PTHREADS && DEFAULT_STACK_MAYBE_SMALL]
(fork_a_thread): Set stack size of the created thread to MIN_STACK_SIZE.
* tests/test.c [GC_PTHREADS] (main): Set size of the created thread
also if DEFAULT_STACK_MAYBE_SMALL is defined.
Ivan Maidanski [Tue, 20 Jun 2017 22:07:12 +0000 (01:07 +0300)]
Better document minimum value of size argument for typed allocations
* include/gc_typed.h (GC_make_descriptor): Provide a better argument
name (in comment).
* include/gc_typed.h (GC_malloc_explicitly_typed,
GC_calloc_explicitly_typed): Explicitly state in comment that the
size of the object in words should not be less than the number of
significant bits in the specified descriptor.
Ivan Maidanski [Tue, 20 Jun 2017 21:42:44 +0000 (00:42 +0300)]
Add minimal testing of GC_set_bit (gctest)
* tests/test.c (typed_test): Initialize bm3, bm2 local variables to zero;
call GC_set_bit to setup bm3 and bm2 (instead of direct hard-coding of
bm3 and bm2 values during their initialization).
Hamayama [Tue, 20 Jun 2017 21:30:24 +0000 (00:30 +0300)]
Fix typed_test to prevent fails in malloc_explicitly_typed (64-bit)
Issue #166 (bdwgc).
* tests/test.c (typed_test): Pass 320*sizeof(word)+some_number instead
of 2000 to GC_malloc_explicitly_typed, so that to satisfy the size
argument requirement of the latter regardless of word size).
Ivan Maidanski [Tue, 20 Jun 2017 14:05:20 +0000 (17:05 +0300)]
Prevent abort in register_data_segments for Symbian and Emscripten
Issue #163 (bdwgc).
DATASTART is tested to have a non-null value in GC_register_data_segments,
so the macro should not be defined to null even if it is not really
used (null value typically means that the corresponding weak symbol
is not resolved).
* include/private/gcconfig.h [SYMBIAN || __EMSCRIPTEN__] (DATASTART,
DATAEND): Change to a non-null value (ALIGNMENT).
Ivan Maidanski [Tue, 20 Jun 2017 07:50:45 +0000 (10:50 +0300)]
Fix text formatting in gcinterface.md
(fix commit 0ac938d)
* doc/gcinterface.md (GC_MALLOC_ATOMIC_IGNORE_OFF_PAGE): Do not break
"void *" with a new line.
* doc/gcinterface.md (C++ Interface, C interface): Use "##" (to
identify section title) instead of "#" (or "**").
Ivan Maidanski [Tue, 20 Jun 2017 07:31:44 +0000 (10:31 +0300)]
Convert overview.html, tree.html to Markdown format
* README.md: Replace overview.html with overview.md.
* doc/doc.am (dist_doc_DATA): Likewise.
* doc/doc.am (dist_doc_DATA): Replace tree.html with tree.md.
* doc/gcdescr.md (Mark phase): Likewise.
* doc/overview.html: Change file suffix to .md; convert text format
from HTML to Markdown.
* doc/tree.html: Likewise.
Ivan Maidanski [Fri, 16 Jun 2017 15:32:05 +0000 (18:32 +0300)]
Fix compiler intrinsics support check failure in 'make distcheck'
(fix commit 4c6be54)
* configure.ac [with_libatomic_ops=check] (CFLAGS): Add
-I${srcdir}/include -I${srcdir}/tests (instead of -Iinclude).
* configure.ac [with_libatomic_ops=check] (AC_TRY_RUN): Do not
specify folder in #include.
Ivan Maidanski [Fri, 16 Jun 2017 08:24:35 +0000 (11:24 +0300)]
Update bdwgc mailing list online archive link in documentation
* README.md (Feedback, Contribution, Questions and Notifications):
Update information about accessing the mailing list archive (add link
to that at Narkive site).
* doc/overview.html (Contacts and new release announcements): Replace
link to the mailing list archive at Gmane.org to that at Narkive.
Ivan Maidanski [Fri, 16 Jun 2017 07:45:02 +0000 (10:45 +0300)]
Update GCJ link in documentation
* doc/gcdescr.html: Replace http://gcc.gnu.org/java link (which now
points to GCC itself) with https://gcc.gnu.org/onlinedocs/gcc-4.8.5/gcj/
one.
* doc/overview.html: Likewise.