Merge branch 'jpellegrini-libgc-8.2.8'

PACKAGES-USED

@@ -18,7 +18,7 @@ the full version counterpart.
 
 GC: The Boehm's conservative garbage collector for C and C++
 ============================================================
-    - Version: 8.2.6
+    - Version: 8.2.8
     - License: Free (BSD-like)
     - Home Page: https://www.hboehm.info/gc/
 

gc/AUTHORS

@@ -120,6 +120,7 @@ Daniel R. Grayson <[email protected]>
 Danny Smith <[email protected]>
 Darrell Schiebel <[email protected]>
 Dave Barrett <[email protected]>
+Dave Barton <[email protected]>
 Dave Detlefs <[email protected]>
 Dave Korn <[email protected]>
 Dave Love <[email protected]>
@@ -158,6 +159,7 @@ Emmanual Stumpf
 Eric Benson <[email protected]>
 Eric Holk <[email protected]>
 Erik M. Bray <[email protected]>
+Fabian Ruffy <[email protected]>
 Fabian Thylman
 Fabrice Fontaine <[email protected]>
 Fergus Henderson <[email protected]>
@@ -363,6 +365,7 @@ Phillip Musumeci <[email protected]>
 Phong Vo <[email protected]>
 Pierre de Rop
 Pontus Rydin <[email protected]>
+Qing Guo <[email protected]>
 Radek Polak <[email protected]>
 Rainer Orth <[email protected]>
 Ranjit Mathew <[email protected]>
@@ -396,6 +399,7 @@ Samuel Thibault <[email protected]>
 Scott Ananian <[email protected]>
 Scott Ferguson <[email protected]>
 Scott Schwartz <[email protected]>
+Seonghyun Kim <[email protected]>
 Shawn Wagner <[email protected]>
 Shea Levy <[email protected]>
 Shiro Kawai <[email protected]>

gc/CMakeLists.txt

@@ -24,14 +24,14 @@
 
 cmake_minimum_required(VERSION 3.5)
 
-set(PACKAGE_VERSION 8.2.6)
+set(PACKAGE_VERSION 8.2.8)
 # Version must match that in AC_INIT of configure.ac and that in README.
 # Version must conform to: [0-9]+[.][0-9]+[.][0-9]+
 
 # Info (current:revision:age) for the Libtool versioning system.
 # These values should match those in cord/cord.am and Makefile.am.
 set(LIBCORD_VER_INFO    6:1:5)
-set(LIBGC_VER_INFO      6:3:5)
+set(LIBGC_VER_INFO      6:4:5)
 set(LIBGCCPP_VER_INFO   6:0:5)
 
 option(enable_cplusplus "C++ support" OFF)

gc/ChangeLog

@@ -1,4 +1,39 @@
 
+== [8.2.8] 2024-09-08 ==
+
+* Allow GC_size() argument to be null
+* Disable backtrace saving at garbage collections if DONT_SAVE_TO_LAST_STACK
+* Eliminate 'cast signed to bigger unsigned' CSA warnings in GC_find_limit
+* Eliminate 'x might be clobbered by longjmp' gcc warning in setjmp_t.c
+* Fix 'un-mprotect vdb failed' abort with out-of-memory reason on Linux
+* Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
+* Fix GC_debug_realloc to support custom kind
+* Fix GC_is_visible for case of arg pointing exactly to object upper bound
+* Fix GC_print_trace_inner to print the last element of the circular buffer
+* Fix cordtst2.tmp file deletion in cordtest on Windows
+* Fix double lock in GC_malloc called from backtrace()
+* Fix handling of page-unaligned boundaries in soft_set_grungy_pages
+* Fix heap blocks size computation by GC_get_memory_use
+* Fix indent of a closing curly braces in GC_apply_to_all_blocks
+* Fix infinite resend lost signals if a thread is restarted by SIGQUIT
+* Fix null pointer dereference in GC_is_visible if type_descr is null
+* Fix per_object_helper() after changing hb_sz units
+* Fix pointer relational comparison in GC_do_enumerate_reachable_objects
+* Fix poor thread-local allocation performance because of double EXTRA_BYTES
+* Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
+* Fix potential address overflow in GC_add_to_heap
+* Fix potential buffer overrun during read in GC_text_mapping
+* Fix various typos in comments
+* Prevent GC_noop_sink from scanning by the collector
+* Prevent redirected malloc call from a garbage collection routine
+* Redirect malloc_usable_size() in leak_detector.h
+* Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
+* Update and fix diagrams describing the tree structure for pointer lookups
+* Use atomic store to set GC_first_nonempty in GC_do_parallel_mark
+* Use atomic store to set entry id and update cache_ptr in slow_getspecific
+* Workaround '.obj file not found' error reported by watcom wlib
+
+
 == [8.2.6] 2024-02-04 ==
 
 * Avoid unexpected heap growth in gctest for the case of VERY_SMALL_CONFIG
@@ -83,7 +118,7 @@
 * Adjust WoW64 workaround to work on UWP/WinRT
 * Adjust naming of Win32/64 and x86/64 words in comments and documentation
 * Avoid potential race between realloc and GC_block_was_dirty
-* Do not double-clear first two words of object in GC_generic_malloc_aligned
+* Do not double-clear first two words of object in GC_generic_malloc
 * Do not mention FASTLOCK in comment
 * Do not mix debug and non-debug allocations in disclaim tests
 * Do not prohibit threaded builds with malloc redirection on non-Linux
@@ -523,6 +558,14 @@
 * Workaround various cppcheck false positives
 
 
+== [8.0.14] 2024-09-07 ==
+
+* Disable backtrace saving at garbage collections if DONT_SAVE_TO_LAST_STACK
+* Fix infinite resend lost signals if a thread is restarted by SIGQUIT
+
+Also, includes 7.6.22 changes
+
+
 == [8.0.12] 2024-02-04 ==
 
 * Eliminate 'make_key is defined but unused' gcc warning in threadkeytest
@@ -1052,6 +1095,17 @@ Also, includes 7.6.18 changes
 * Workaround Thread Sanitizer (TSan) false positive warnings
 
 
+== [7.6.22] 2024-09-07 ==
+
+* Eliminate 'cast signed to bigger unsigned' CSA warnings in GC_find_limit
+* Fix GC_debug_realloc to support custom kind
+* Fix heap blocks size computation by GC_get_memory_use
+* Fix pointer relational comparison in GC_do_enumerate_reachable_objects
+* Prevent GC_noop_sink from scanning by the collector
+
+Also, includes 7.4.28 changes
+
+
 == [7.6.20] 2024-02-03 ==
 
 * Eliminate compiler warning of missing cast in LONG_MULT after shift
@@ -1632,6 +1686,27 @@ Also, includes 7.4.6 changes
 Also, includes 7.4.4 changes
 
 
+== [7.4.28] 2024-09-07 ==
+
+* Avoid gcc stringop-overflow warning for intended overflow in smashtest
+* Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
+* Fix GC_is_visible for case of arg pointing exactly to object upper bound
+* Fix GC_print_trace_inner to print the last element of the circular buffer
+* Fix cordtst2.tmp file deletion in cordtest on Windows
+* Fix double lock in GC_malloc called from backtrace()
+* Fix indent of a closing curly braces in GC_apply_to_all_blocks
+* Fix null pointer dereference in GC_is_visible if type_descr is null
+* Fix per_object_helper() after changing hb_sz units
+* Fix poor thread-local allocation performance because of double EXTRA_BYTES
+* Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
+* Fix potential address overflow in GC_add_to_heap
+* Fix potential buffer overrun during read in GC_text_mapping
+* Fix typos in comments
+* Prevent redirected malloc call from a garbage collection routine
+* Remove redundant dirty/reachable_here calls in GC_malloc_explicitly_typed
+* Update and fix diagrams describing the tree structure for pointer lookups
+
+
 == [7.4.26] 2024-02-03 ==
 
 * Eliminate 'unused parameter' gcc warning in free() if IGNORE_FREE
@@ -2206,6 +2281,35 @@ Also, includes 7.2e, 7.2d, 7.2c, 7.2b changes
 Also, includes 7.2 changes
 
 
+== [7.2s] 2024-09-06 ==
+
+* Avoid gcc stringop-overflow warning for intended overflow in smashtest
+* Eliminate 'type defaults to int in declaration' warning (REDIRECT_MALLOC)
+* Eliminate 'value exceeds maximum object size' GCC warning in huge_test
+* Eliminate warning and simplify expression in GC_init_explicit_typing
+* Fix 'GetVersion deprecated' compiler warning in os_dep (MS VC)
+* Fix 'value truncated' compiler warning in CORD_cat (MS VC)
+* Fix ADD_CALL_CHAIN() placement to follow GC_store_debug_info_inner call
+* Fix GC_is_visible for case of arg pointing exactly to object upper bound
+* Fix GC_jmp_buf multiple definition
+* Fix GC_print_trace_inner to print the last element of the circular buffer
+* Fix double lock in GC_malloc called from backtrace()
+* Fix indent of a closing curly braces in GC_apply_to_all_blocks
+* Fix null pointer dereference in GC_is_visible if type_descr is null
+* Fix per_object_helper() after changing hb_sz units
+* Fix poor thread-local allocation performance because of double EXTRA_BYTES
+* Fix potential GC_add_roots_inner call with an overflowed pointer (Win32)
+* Fix potential address overflow in GC_add_to_heap
+* Fix potential buffer overrun during read in GC_text_mapping
+* Fix typos in comments
+* Prevent compiler warnings regarding unused argument and printf in extra
+* Prevent redirected malloc call from a garbage collection routine
+* Remove barrett_diagram file duplicated by tree.html
+* Remove non-existing DISCARD_WORDS from GC data structure ASCII diagram
+* Resolve GCC warning in setjmp_t.c
+* Update and fix diagrams describing the tree structure for pointer lookups
+
+
 == [7.2r] 2024-02-03 ==
 
 * Fix 'g++ not found' error on OpenBSD (Makefile.direct)

gc/Makefile.am

@@ -14,7 +14,7 @@
 # Info (current:revision:age) for the Libtool versioning system.
 # These numbers should be updated at most once just before the release,
 # and, optionally, at most once during the development (after the release).
-LIBGC_VER_INFO = 6:3:5
+LIBGC_VER_INFO = 6:4:5
 LIBGCCPP_VER_INFO = 6:0:5
 
 ## FIXME: `make distcheck' in this directory will not currently work.

gc/Makefile.in

@@ -1050,7 +1050,7 @@ top_srcdir = @top_srcdir@
 # Info (current:revision:age) for the Libtool versioning system.
 # These numbers should be updated at most once just before the release,
 # and, optionally, at most once during the development (after the release).
-LIBGC_VER_INFO = 6:3:5
+LIBGC_VER_INFO = 6:4:5
 LIBGCCPP_VER_INFO = 6:0:5
 
 # We currently use the source files directly from libatomic_ops, if we

gc/README.md

@@ -1,6 +1,6 @@
 # Boehm-Demers-Weiser Garbage Collector
 
-This is version 8.2.6 of a conservative garbage
+This is version 8.2.8 of a conservative garbage
 collector for C and C++.
 
 

gc/WCC_MAKEFILE

@@ -95,24 +95,24 @@ OBJS= alloc.obj reclaim.obj allchblk.obj backgraph.obj checksums.obj &
 
 gc.lib: $(OBJS)
         @%create $*.lb1
-        @for %i in ($(OBJS)) do @%append $*.lb1 +'%i'
+        @for %i in ($(OBJS)) do @%append $*.lb1 +%i
         *wlib -b -c -n -p=512 $@ @$*.lb1
 
 cord.lib: $(COBJS)
         @%create $*.lb1
-        @for %i in ($(COBJS)) do @%append $*.lb1 +'%i'
+        @for %i in ($(COBJS)) do @%append $*.lb1 +%i
         *wlib -b -c -n -p=512 $@ @$*.lb1
 
 gccpp.lib: gc_badalc.obj gc_cpp.obj
         @%create $*.lb1
-        @%append $*.lb1 +'gc_badalc.obj'
-        @%append $*.lb1 +'gc_cpp.obj'
+        @%append $*.lb1 +gc_badalc.obj
+        @%append $*.lb1 +gc_cpp.obj
         *wlib -b -c -n -p=512 $@ @$*.lb1
 
 # The same as gccpp.lib but contains only gc_badalc.obj.
 gctba.lib: gc_badalc.obj
         @%create $*.lb1
-        @%append $*.lb1 +'gc_badalc.obj'
+        @%append $*.lb1 +gc_badalc.obj
         *wlib -b -c -n -p=512 $@ @$*.lb1
 
 !else
@@ -134,7 +134,7 @@ gc.dll: gc.obj .AUTODEPEND
 !endif
         @%append $*.lnk op case
         @%append $*.lnk name $*
-        @%append $*.lnk file 'gc.obj'
+        @%append $*.lnk file gc.obj
         *wlink @$*.lnk
 
 cord.lib: cord.dll
@@ -151,7 +151,7 @@ cord.dll: $(COBJS) gc.lib .AUTODEPEND
 !endif
         @%append $*.lnk op case
         @%append $*.lnk name $*
-        @for %i in ($(COBJS)) do @%append $*.lnk file '%i'
+        @for %i in ($(COBJS)) do @%append $*.lnk file %i
         @%append $*.lnk library gc.lib
         *wlink @$*.lnk
 
@@ -169,8 +169,8 @@ gccpp.dll: gc_badalc.obj gc_cpp.obj gc.lib .AUTODEPEND
 !endif
         @%append $*.lnk op case
         @%append $*.lnk name $*
-        @%append $*.lnk file 'gc_badalc.obj'
-        @%append $*.lnk file 'gc_cpp.obj'
+        @%append $*.lnk file gc_badalc.obj
+        @%append $*.lnk file gc_cpp.obj
         @%append $*.lnk library gc.lib
         @%append $*.lnk library wr7$(CALLING)dll.lib
         *wlink @$*.lnk
@@ -189,7 +189,7 @@ gctba.dll: gc_badalc.obj gc.lib .AUTODEPEND
 !endif
         @%append $*.lnk op case
         @%append $*.lnk name $*
-        @%append $*.lnk file 'gc_badalc.obj'
+        @%append $*.lnk file gc_badalc.obj
         @%append $*.lnk library gc.lib
         @%append $*.lnk library wr7$(CALLING)dll.lib
         *wlink @$*.lnk

gc/allchblk.c

@@ -621,7 +621,7 @@ STATIC struct hblk * GC_get_first_part(struct hblk *h, hdr *hhdr,
  * appropriate free list.
  * N replaces h in the original free list.
  *
- * Nhdr is not completely filled in, since it is about to allocated.
+ * Nhdr is not completely filled in, since it is about to be allocated.
  * It may in fact end up on the wrong free list for its size.
  * That's not a disaster, since n is about to be allocated
  * by our caller.

gc/alloc.c

@@ -530,9 +530,7 @@ STATIC void GC_maybe_gc(void)
         /* used instead of GC_never_stop_func here.             */
         if (GC_stopped_mark(GC_time_limit == GC_TIME_UNLIMITED?
                             GC_never_stop_func : GC_timeout_stop_func)) {
-#           ifdef SAVE_CALL_CHAIN
-                GC_save_callers(GC_last_stack);
-#           endif
+            SAVE_CALLERS_TO_LAST_STACK();
             GC_finish_collection();
         } else {
             if (!GC_is_full_gc) {
@@ -621,9 +619,7 @@ GC_INNER GC_bool GC_try_to_collect_inner(GC_stop_func stop_func)
         }
     GC_invalidate_mark_state();  /* Flush mark stack.   */
     GC_clear_marks();
-#   ifdef SAVE_CALL_CHAIN
-        GC_save_callers(GC_last_stack);
-#   endif
+    SAVE_CALLERS_TO_LAST_STACK();
     GC_is_full_gc = TRUE;
     if (!GC_stopped_mark(stop_func)) {
       if (!GC_incremental) {
@@ -736,9 +732,7 @@ GC_INNER void GC_collect_a_little_inner(int n)
 
         if (i < max_deficit && !GC_dont_gc) {
             /* Need to finish a collection.     */
-#           ifdef SAVE_CALL_CHAIN
-                GC_save_callers(GC_last_stack);
-#           endif
+            SAVE_CALLERS_TO_LAST_STACK();
 #           ifdef PARALLEL_MARK
                 if (GC_parallel)
                     GC_wait_for_reclaim();
@@ -1408,7 +1402,7 @@ STATIC void GC_add_to_heap(struct hblk *p, size_t bytes)
         if (0 == bytes) return;
     }
     endp = (word)p + bytes;
-    if (endp <= (word)p) {
+    while (endp <= (word)p) {
         /* Address wrapped. */
         bytes -= HBLKSIZE;
         if (0 == bytes) return;
@@ -1474,6 +1468,7 @@ STATIC void GC_add_to_heap(struct hblk *p, size_t bytes)
         GC_greatest_real_heap_addr = endp;
       }
 #   endif
+    GC_handle_protected_regions_limit();
     if (old_capacity > 0) {
 #     ifndef GWW_VDB
         /* Recycling may call GC_add_to_heap() again but should not     */

gc/backgraph.c

@@ -294,7 +294,7 @@ static void per_object_helper(struct hblk *h, word fn)
   do {
     f((ptr_t)(h -> hb_body + i), sz, descr);
     i += sz;
-  } while (i + sz <= BYTES_TO_WORDS(HBLKSIZE));
+  } while (i + sz <= HBLKSIZE);
 }
 
 GC_INLINE void GC_apply_to_each_object(per_object_func f)