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authorDai Sato <satodai@dog.intcul.tohoku.ac.jp>2001-11-22 17:52:28 +0000
committerDai Sato <satodai@dog.intcul.tohoku.ac.jp>2001-11-22 17:52:28 +0000
commita5067a1853b490e9c551ac2ff7c4cb58a9bb3f48 (patch)
tree42ca751a0b79dd050082b1e87c7d8957c161c6ff /gc/doc/README.changes
parent[w3m-dev 02509] (diff)
downloadw3m-inu-0-2-2.tar.gz
w3m-inu-0-2-2.zip
w3m-0.2.2-inu-1.1 sourceinu-0-2-2-rel-1-1inu-0-2-2
Diffstat (limited to 'gc/doc/README.changes')
-rw-r--r--gc/doc/README.changes67
1 files changed, 61 insertions, 6 deletions
diff --git a/gc/doc/README.changes b/gc/doc/README.changes
index c018c8b..4478da7 100644
--- a/gc/doc/README.changes
+++ b/gc/doc/README.changes
@@ -1360,7 +1360,7 @@ Since 6.0alpha8:
it on untested platforms.
- Integrated initial GNU HURD port. (Thanks to Chris Lingard and Igor
Khavkine.)
- - A few more fixes for Digital Mars compiler.
+ - A few more fixes for Digital Mars compiler (Walter Bright).
- Fixed gcc version recognition. Renamed OPERATOR_NEW_ARRAY to
GC_OPERATOR_NEW_ARRAY. Changed GC_OPERATOR_NEW_ARRAY to be the default.
It can be overridden with -DGC_NO_OPERATOR_NEW_ARRAY. (Thanks to
@@ -1378,16 +1378,71 @@ Since 6.0alpha9:
- Fixed a stack clearing problem that resulted in SIGILL with a
misaligned stack pointer for multithreaded SPARC builds.
- Integrated another HURD patch (thanks to Igor Khavkine).
+
+Since 6.0:
+ - Non-debug, atomic allocations could result in bogus smashed object
+ reports with debugging on. (Thanks to Patrick Doyle for the small
+ test case.)
+ - Fixed GC_get_register_stack_base (Itanium only) to work around a glibc
+ 2.2.4 bug.
+ - Initial port to HP/UX on Itanium. Thread support and both 32 and 64
+ bit ABIs appear to work. Parallel mark support doesn't yet, due to
+ some inline assembly code issues. Thread local allocation does appear
+ to work.
+ - ifdef'ed out glibc2.1/Itanium workaround. I suspect nobody is using
+ that combination anymore.
+ - Added a patch to make new_gc_alloc.h usable with gcc3.0. (Thanks to
+ Dimitris Vyzovitis for the patch.)
+ - Debugged 64-bit support on HP/UX PA-RISC.
+ - Turned on dynamic loading support for FreeBSD/ELF. (Thanks to Peter
+ Housel.)
+ - Unregistering of finalizers with debugging allocation was broken.
+ (Thanks to Jani Kajala for the test case.)
+ - Old finalizers were not returned correctly from GC_debug_register_finalizer.
+ - Disabled MPROTECT_VDB for Linux/M68K based on a report that it doesn't work.
+ - Cleaned up some statistics gathering code in reclaim.c (Thanks to Walter
+ Bright.)
+ - Added some support for OpenBSD/ELF/Linux. (Thanks to Suzuki Toshiya.)
+ - Added Jakub Jelinek's patch to use dl_iterate_phdr for dynamic library
+ traversal to dyn_load.c. Changed it to weakly reference dl_iterate_phdr,
+ so that the old code is stilll used with old versions of glibc.
+ - Cleaned up feature test macros for various threads packages and
+ integrated (partially functional) FreeBSD threads code from Loren Rittle.
+ It's likely that the cleanup broke something, since it touched lots of
+ code. It's also likelly that it fixed some unreported bugs in the
+ less common thread implementations, since some of the original code
+ didn't stand up to close scrutiny. Support for the next pthreads
+ implementation should be easier to add.
+Since 6.0alpha1:
+ - No longer wrap read by default in multithreaded applications. It was
+ pointed out on the libgcj list that this holds the allocation lock for
+ way too long if the read blocks. For now, reads into the heap are
+ broken with incremental collection. It's possible to turn this back on
+ if you make sure that read calls don't block (e.g. by calling select
+ first).
+ - Fix ifdef in Solaris_threads.h to refer to GC_SOLARIS_THREADS.
+ - Added check for environment variable GC_IGNORE_GCJ_INFO.
+ - Added printing of stop-the-world GC times if GC_PRINT_STATS environment
+ variable is set.
+ - The calloc definition in leak_detector.h was missing parentheses, and
+ realloc was missing a second argument to GC_REALLOC. (Thanks to Elrond.)
+ - Added GC_PRINT_BACK_HEIGHT environment variable and associated
+ code, mostly in the new file backgraph.c. See doc/README.environment.
+ - Added -DUSE_GLOBAL_ALLOC to work around a Windows NT issue. (Thanks to
+ Jonathan Clark.)
+ - Integrated port to NEC EWS4800 (MIPS-based workstation, with somewhat
+ different address-space layout). This may help for other machines with
+ holes in the data segment. (Thanks to Hironori Sakamoto.)
+ - Changed the order in which GC_push_roots and friends push things onto
+ the mark stack. GC_push_all calls need to come first, since we can't
+ necessarily recovere if thos overflow the mark stack. (Thanks to
+ Matthew Flatt for tracking down the problem.)
To do:
- There seem to be outstanding issues on Solaris/X86, possibly with
finding the data segment starting address. Information/patches would
- ne appreciated.
- - New_gc_alloc.h is apparently no longer compatible with the latest C++
- standard library in gcc3.0. (This isn't technically a bug, since it only
- claimed compatibility with the SGI STL. But we may need a new C++ STL
- allocator interface.)
+ be appreciated.
- Very large root set sizes (> 16 MB or so) could cause the collector
to abort with an unexpected mark stack overflow. (Thanks again to
Peter Chubb.) NOT YET FIXED. Workaround is to increase the initial