[patch] 2/n: ChangeLog entries for libitm runtime
Aldy Hernandez
aldyh@redhat.com
Thu Nov 3 17:51:00 GMT 2011
The runtime is too big to post as one patch, hence the split.
Index: libitm/ChangeLog
===================================================================
--- libitm/ChangeLog (.../trunk) (revision 0)
+++ libitm/ChangeLog (.../branches/transactional-memory) (revision 180773)
@@ -0,0 +1,851 @@
+2011-10-29 Torvald Riegel <triegel@redhat.com>
+
+ * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
+ handle aborts.
+ (_ITM_abortTransaction): Handle aborts of outer transactions.
+ * libitm_i.h: Same.
+ * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
+ * libitm.texi: Document aborts of outer transactions.
+ * testsuite/libitm.c/cancel.c: New file.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * testsuite/*: Change __transaction to __transaction_atomic or
+ __transaction_relaxed.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
+ (gtm_thr): Same.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h: Add gl_wt dispatch.
+ * retry.cc (parse_default_method): Same.
+ * method-gl.cc: New file.
+ * Makefile.am: Use method-gl.cc.
+ * Makefile.in: Rebuild.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
+ safety if requested by a TM method.
+ * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
+ privatization safety.
+ * method-serial.cc: Same.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
+ (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
+ undolog-related member functions from *_local to *_undolog.
+ * local.cc (gtm_thread::commit_undolog): Same.
+ * beginend.cc (GTM::gtm_thread::trycommit): Same.
+ (GTM::gtm_thread::rollback): Roll back undolog before
+ dispatch-specific rollback.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
+ re-initialization of the current method group.
+ * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * alloc.cc (commit_allocations_2): Do not free transaction-local
+ memory when committing a nested transaction.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
+ serial-irrevocable dispatch, not serial.
+
+2011-10-19 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
+ declarations.
+ * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
+ * method-serial.cc: Implement begin_or_restart().
+ * beginend.cc (GTM::gtm_thread::begin_transaction): Call
+ dispatch-specific begin_or_restart().
+ (GTM::gtm_thread::restart): Same.
+
+2011-08-23 Torvald Riegel <triegel@redhat.com>
+
+ * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
+ restarting without switching to serial mode.
+ (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
+ transaction state. Choose closed-nesting alternative if available.
+ (GTM::gtm_thread::set_default_dispatch): New.
+ (parse_default_method): New.
+ (GTM::gtm_thread::number_of_threads_changed): New.
+ * method-serial.cc (GTM::serial_mg): New method group class.
+ (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
+ fini.
+ (GTM::serial_dispatch): Same.
+ (GTM::serialirr_onwrite_dispatch): Same.
+ (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
+ * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
+ registered threads.
+ (GTM::gtm_thread::gtm_thread): Same.
+ (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
+ (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
+ (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
+ choose dispatch but set state according to dispatch here.
+ * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
+ (GTM::method_group): New class.
+ (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
+ * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
+ * libitm.texi: Document TM methods, method groups, method life cycle.
+ Rename method sets to method groups.
+
+2011-08-23 Torvald Riegel <triegel@redhat.com>
+
+ * config/x86/tls.h: Moved to ...
+ * config/linux/x86/tls.h: ... here.
+
+2011-08-23 Torvald Riegel <triegel@redhat.com>
+
+ * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
+ Add X32 support.
+ * config/x86/sjlj.S: Same.
+
+2011-08-19 Torvald Riegel <triegel@redhat.com>
+
+ * config/linux/rwlock.h: New file.
+ * config/linux/rwlock.c: New file.
+ * configure.ac: Reenable futex support (undo SVN rev 157758).
+ * Makefile.am: Same.
+ * configure.tgt: Same.
+ * config/linux/alpha/futex_bits.h: Same.
+ * config/linux/futex.h: Same. Return number of woken processes.
+ * config/linux/futex.cc: Same.
+ (futex_wait): Remove spinning.
+ * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
+ Use __x86_64__ instead of __LP64__.
+ * aclocal.m4: Include generic futex checks.
+ * configure: Rebuild.
+ * Makefile.in: Rebuild.
+ * testsuite/Makefile.in: Rebuild.
+ * beginend.cc: Include pthread.h.
+ * config/posix/cachepage.cc: Same.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
+ (abi_disp, set_abi_disp): Move to tx's TLS slot.
+ (set_gtm_thr): New.
+ * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
+ (set_gtm_thr): New.
+ (GTM::gtm_thread::thread_num): Removed.
+ (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
+ * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
+ tx-to-thread renaming.
+ * beginend.cc: Adapted to tx-to-thread renaming.
+ (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
+ (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
+ * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
+ gtm_transaction to gtm_thread.
+ (_ITM_getThreadnum): Removed. Not supported anymore.
+ * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
+ * libitm.texi: Documented that _ITM_getThreadnum is not supported.
+ * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
+ gtm_tx-to-gtm_thr renaming if necessary.
+ * eh_cpp.cc: Same.
+ * local.cc: Same.
+ * retry.cc: Same.
+ * clone.cc: Same.
+ * alloc.cc: Same.
+ * alloc_c.cc: Same.
+ * alloc_cpp.cc: Same.
+ * method-serial.cc: Same.
+ * config/generic/tls.cc: Same.
+ * config/posix/rwlock.h (gtm_rwlock): Same.
+ * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
+ implementation.
+ (gtm_rwlock::read_unlock): Same.
+ (gtm_rwlock::write_lock_generic): New. Generalized from ...
+ (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
+ * libitm_i.h (GTM::gtm_transaction): Added shared_state.
+ * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
+ w_upgrade. Replaced by per-transaction flags (in shared_state).
+ Added c_confirmed_writers.
+ (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
+ GTM::gtm_rwlock::write_upgrade): Add tx parameter.
+ * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
+ * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction,
+ _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
+ * libitm.texi: Document locking conventions and implementations in
+ libitm.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h (next_tx): Add list of all threads' transaction.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
+ transaction with list of transactions and ...
+ (thread_exit_handler): ... deregister here.
+ * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
+ * config/x86/target.h: Same.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * testsuite/libitm.c++/static_ctor.C: New file.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * testsuite/libitm.c/reentrant.c: New file.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * config/generic/tls.h: Remove the free list for transactions and ...
+ * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
+ (GTM::gtm_transaction::operator delete): ... and release here.
+ (thread_exit_handler): New. Delete tx when thread terminates.
+ (thread_exit_init): New.
+ (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
+ * testsuite/libitm.c/txrelease.c: New file.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
+ * testsuite/libitm.c/notx.c: New file.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * config/generic/tls.h (gtm_thread): Move local_tid from here ...
+ * libitm_i.h (local_tid): ... to here.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
+ (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
+ serialirr_onwrite_dispatch as new default for now.
+ * method-serial.cc (serialirr_onwrite_dispatch): New.
+ (GTM::dispatch_serialirr_onwrite): New.
+ * libitm_i.h: Same.
+
+2011-08-12 Torvald Riegel <triegel@redhat.com>
+
+ * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
+ * query.cc (_ITM_getTransactionId): There is no active transaction if
+ the current nesting level is zero.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
+ rollback.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
+ transaction properties from the caller instead of from the
+ transaction object.
+ * libitm_i.h: Same.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * local.cc (gtm_transaction::rollback_local): Support closed nesting.
+ * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
+ * dispatch.h: Same.
+ * method-serial.cc: Same.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
+ flat nesting as default, and closed nesting on demand.
+ (GTM::gtm_transaction::rollback): Same.
+ (_ITM_abortTransaction): Same.
+ (GTM::gtm_transaction::restart): Same.
+ (GTM::gtm_transaction::trycommit): Same.
+ (GTM::gtm_transaction::trycommit_and_finalize): Removed.
+ (choose_code_path): New.
+ (GTM::gtm_transaction_cp::save): New.
+ (GTM::gtm_transaction_cp::commit): New.
+ * query.cc (_ITM_inTransaction): Support flat nesting.
+ * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
+ (GTM::gtm_transaction): Support flat and closed nesting.
+ * alloc.cc (commit_allocations_2): New.
+ (commit_cb_data): New helper struct.
+ (GTM::gtm_transaction::commit_allocations): Handle nested
+ commits/rollbacks.
+ * libitm.texi: Update user action section, add description of nesting.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h: Add closed nesting as restart reason.
+ * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * useraction.cc: Use vector instead of list to store actions.
+ Also support partial rollbacks for closed nesting.
+ * libitm_i.h (GTM::gtm_transaction::user_action): Same.
+ * beginend.cc: Same.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
+ closed_nesting flags, as well as a closed nesting alternative.
+ * method-serial.cc: Same.
+ (serial_dispatch): Renamed to serialirr_dispatch.
+ (GTM::dispatch_serialirr): Same.
+ (serial_dispatch_ul): Renamed to serial_dispatch.
+ (GTM::dispatch_serial): Same.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.
+
+2011-07-28 Torvald Riegel <triegel@redhat.com>
+
+ * aatree.h (aa_tree::remove): New.
+ (aa_tree::operator new): Add placement new.
+
+2011-07-02 Torvald Riegel <triegel@redhat.com>
+
+ * containers.h: New file.
+ * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
+ * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
+ * common.h: ... to here.
+ (local_undo): Use GTM::vector for gtm_transaction::local_undo.
+ * local.cc: Same.
+
+2011-06-30 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h (STATE_ABORTING): Remove.
+ * beginend.cc (_ITM_abortTransaction): Same.
+ (GTM::gtm_transaction::trycommit_and_finalize): Same.
+ * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
+ (_ITM_rollbackTransaction): Remove.
+ * beginend.cc: Same.
+ * libitm.map: Same.
+ * libitm.texi: Document these ABI changes.
+
+2011-06-30 Torvald Riegel <triegel@redhat.com>
+
+ * libitm.texi: New file.
+ * Makefile.am: Add libitm.texi.
+ * Makefile.in: Rebuild.
+
+2011-06-30 Torvald Riegel <triegel@redhat.com>
+
+ * libitm_i.h: Move parts to common.h and dispatch.h.
+ * common.h: New file.
+ * dispatch.h: New file, new dispatch class.
+ Rename GTM::abi_dispatch::lock_type to ls_modifier.
+ RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
+ decision to retry.cc.
+ * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
+ only.
+ (GTM::gtm_transaction::decide_begin_dispatch): Same.
+ * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
+ logging.
+ * barrier.cc: Use new barriers definitions.
+ (abi_dispatch::memmove_overlap_check): New.
+ * config/x86/x86_sse.cc: Same.
+ * config/x86/x86_avx.cc: Same.
+ * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
+ memcpy.cc.
+ * Makefile.in: Rebuild.
+ * method-readonly.cc: Remove.
+ * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
+ Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.
+
+2011-06-30 Torvald Riegel <triegel@redhat.com>
+
+ * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
+ * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
+ * testsuite/libitm.c/dropref-2.c: Same.
+ * testsuite/libitm.c/dropref.c: Same.
+
+2011-06-30 Torvald Riegel <triegel@redhat.com>
+
+ * config/generic/tls.h (gtm_disp): Rename to abi_disp.
+ * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
+ * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
+ * alloc_c.cc: Same.
+ * barrier.tpl: Same.
+ * beginend.c: Same.
+ * config/generic/tls.h: Same.
+ * config/x86/tls.h: Same.
+ * libitm_i.h: Same.
+ * memcpy.cc: Same.
+ * memset.cc: Same.
+ * method-readonly.cc: Same.
+ * method-serial.cc: Same.
+ * method-wbetl.cc: Same.
+ * retry.cc: Same.
+
+2011-03-03 Richard Henderson <rth@redhat.com>
+
+ * config/posix/rwlock.cc (write_upgrade): Add missing case.
+ From Patrik Marlier <patrick.marlier@unine.ch>.
+
+2011-02-03 Richard Henderson <rth@redhat.com>
+
+ * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
+ * configure.ac: Use it.
+ * configure, config.h.in: Rebuild.
+ * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
+ (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
+ _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
+ * libitm.map: Use wildcards to match size_t mangling.
+
+2010-12-14 Richard Henderson <rth@redhat.com>
+
+ * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
+ blocks of TIDs per thread.
+ * config/generic/tls.h (struct gtm_thread): Add local_tid member.
+ (setup_gtm_thr): Return the thread structure.
+ * config/x86/tls.h (setup_gtm_thr): Likewise.
+
+2010-12-14 Richard Henderson <rth@redhat.com>
+
+ * clone.cc (table_lock): Remove.
+ (find_clone): Don't take it.
+ (ExcludeTransaction): New helper class.
+ (_ITM_registerTMCloneTable): Use it.
+ (_ITM_deregisterTMCloneTable): Likewise.
+
+2010-12-14 Richard Henderson <rth@redhat.com>
+
+ * config/x86/tls.h: New file.
+
+2010-07-15 Richard Henderson <rth@redhat.com>
+
+ * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
+ * Makefile.in: Rebuild.
+
+2010-07-13 Aldy Hernandez <aldyh@redhat.com>
+
+ * method-wbetl.cc (trydropreference): Fix source line.
+
+2010-07-13 Aldy Hernandez <aldyh@redhat.com>
+
+ * libitm.h: Add comment.
+ * libitm_i.h (begin_transaction): Add ITM_REGPARM.
+
+2010-07-07 Aldy Hernandez <aldyh@redhat.com>
+
+ * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
+ * beginend.cc (begin_transaction): If 64-bit sync builtins are not
+ available, use pthread mutexes.
+ * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
+ * config.h.in: Regenerate.
+ * configure: Regenerate.
+
+2010-07-06 Aldy Hernandez <aldyh@redhat.com>
+
+ * libitm.h (ITM_PURE): Define.
+ Declare _ITM_malloc, _ITM_calloc, and _ITM_free.
+
+2010-06-28 Aldy Hernandez <aldyh@redhat.com>
+
+ * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
+ (validate): Add comment.
+ (trydropreference): New.
+ * method-readonly.cc (class readonly_dispatch): Add
+ trydropreference.
+ * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
+ Call trydropreference().
+ * libitm.h (_ITM_dropReferences): Remove const attribute.
+ * method-serial.cc (class serial_dispatch): Add trydropreference.
+ * libitm_i.h (struct gtm_dispatch): Add trydropreference.
+
+2010-06-28 Aldy Hernandez <aldyh@redhat.com>
+
+ * memcpy.cc (do_memcpy): Comment.
+
+2010-06-25 Aldy Hernandez <aldyh@redhat.com>
+
+ * barrier.tpl: Add comments throughout.
+
+2010-06-24 Aldy Hernandez <aldyh@redhat.com>
+
+ * method-wbetl.cc (struct w_entry): Add comments.
+ (trycommit): Same.
+ (rollback): Same.
+
+2010-06-24 Aldy Hernandez <aldyh@redhat.com>
+
+ * alloc_c.cc (_ITM_dropReferences): New.
+ * libitm.map (_ITM_dropReferences): Add.
+ * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
+ * libitm_i.h (struct gtm_transaction): Declare
+ drop_references_allocations and drop_references_local.
+ * local.cc (rollback_local): Ignore memory when applicable.
+ (drop_references_local): New.
+
+2010-06-23 Richard Henderson <rth@redhat.com>
+
+ * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
+ memset.cc, method-serial.cc: Revert the 2010-06-16 change.
+ * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
+ * config/alpha/target.h: Likewise.
+ * config/generic/tls.cc (gtm_mask_stack): Use it.
+
+2010-06-23 Richard Henderson <rth@redhat.com>
+
+ * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
+ a mutex instead of trying a lock-free compare-and-swap on the list.
+ (gtm_cacheline_page::operator delete): Likewise.
+
+2010-06-16 Richard Henderson <rth@redhat.com>
+
+ * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
+ that overlap the libitm stack.
+ * barrier.tpl: Mark incoming stack.
+ * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
+ _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
+ * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
+ * memcpy.cc, memset.cc: Likewise.
+ * method-serial.cc (_ITM_changeTransactionMode): Likewise.
+ * config/generic/tls.h (gtm_thread): Add stack_top member.
+ (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
+ * libitm_i.h (gtm_mask_stack): Declare.
+ * config/generic/tls.cc: New file.
+ * Makefile.am (libitm_la_SOURCES): Add it.
+ (AM_CXXFLAGS): Turn off exceptions.
+ * Makefile.in: Rebuild.
+
+2010-06-16 Richard Henderson <rth@redhat.com>
+
+ * alloc.cc (struct gtm_alloc_action): Move definition ...
+ * libitm_i.h: ... here.
+ (class gtm_transaction): Declare new and delete.
+ * beginend.cc (alloc_tx): Reformulate as operator new.
+ (free_tx): Reformulate as operator delete.
+ * config/generic/tls.h (gtm_thread): Change free_tx member to void *.
+
+2010-06-11 Richard Henderson <rth@redhat.com>
+
+ * clone.cc (clone_entry_compare): Fix typo.
+ From Patrik Marlier <patrick.marlier@unine.ch>.
+
+2010-05-13 Richard Henderson <rth@redhat.com>
+
+ * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
+ in extern "C".
+
+2010-05-07 Aldy Hernandez <aldyh@redhat.com>
+
+ * libitm_i.h (struct gtm_transaction): Remove
+ get_allocation_size.
+ (record_allocation): Remove size parameter.
+ * libitm.map (_ITM_realloc): Remove.
+ * alloc_c.cc (_ITM_realloc): Remove.
+ (_ITM_malloc): Remove size argument to record_allocation.
+ (_ITM_calloc): Same.
+ * alloc_cpp.cc (_ZGTtnwm): Same.
+ (_ZGTtnwmRKSt9nothrow_t): Same.
+ (_ZGTtnam): Same.
+ (_ZGTtnamRKSt9nothrow_t): Same.
+ * alloc.cc (struct gtm_alloc_action): Remove size.
+ (get_allocation_size): Remove.
+ (commit_allocations): Add comment.
+ (record_allocation): Remove size parameter.
+ (forget_allocation): Remove set of size.
+
+2010-04-19 Aldy Hernandez <aldyh@redhat.com>
+
+ * Makefile.am (abi_version): New.
+ (AM_CXXFLAGS): Pass abi_version.
+ * Makefile.in: Regenerate.
+ * config/x86/unaligned.h: Remove always_inline kludge for vectors.
+
+2010-04-06 Aldy Hernandez <aldyh@redhat.com>
+
+ * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
+ _ITM_getTMCloneOrIrrevokable.
+ * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
+ * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.
+
+2010-03-26 Aldy Hernandez <aldyh@redhat.com>
+
+ * configure.ac: Remove Linux futex support.
+ * configure.tgt (config_path): Same.
+ * Makefile.am: Same.
+ * config/linux: Remove entire directory.
+ * configure: Rebuild.
+ * Makefile.in: Rebuild.
+ * testsuite/Makefile.in: Rebuild.
+
+2010-03-09 Aldy Hernandez <aldyh@redhat.com>
+
+ * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
+ switching to serial mode.
+ * beginend.cc (trycommit_and_finalize): Unlock serial_lock.
+
+2010-03-03 Aldy Hernandez <aldyh@redhat.com>
+
+ * configure.tgt: Add emacs -*- tags.
+ * barrier.tpl: Same.
+
+2010-02-23 Aldy Hernandez <aldyh@redhat.com>
+
+ * Makefile.am: Rename serial.cc to method-serial.cc.
+ * Makefile.in: Regenerate with automake 1.11.1.
+ * testsuite/Makefile.in: Same.
+ * aclocal.m4: Regenerate with aclocal 1.11.1.
+ * method-serial.cc: Rename from serial.cc.
+ * libitm_i.h (struct gtm_transaction): Update comment on
+ serialirr_mode.
+
+2010-02-22 Aldy Hernandez <aldyh@redhat.com>
+
+ * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
+ * config/linux/rwlock.h (class gtm_rwlock): Add comments.
+
+2010-02-11 Aldy Hernandez <aldyh@redhat.com>
+
+ * configure: Rebuild.
+
+2009-11-12 Richard Henderson <rth@redhat.com>
+
+ * Rewrite everything in C++.
+
+2009-11-03 Richard Henderson <rth@redhat.com>
+
+ * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
+ * Makefile.am (libitm_la_SOURCES): Add them.
+ * configure.ac (ARCH_X86): New conditional.
+ * Makefile.in, configure: Rebuild.
+ * configure.tgt: Set up ARCH; do cflags setup at the same time.
+ Move futex setup into "other system configury" case.
+ * local.c (rollback_local): Merge into ...
+ (GTM_rollback_local): ... here.
+ (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
+ (_ITM_LB): Define as an alias to GTM_LB.
+
+2009-11-03 Richard Henderson <rth@redhat.com>
+
+ * method-readonly.c: New file.
+ * Makefile.am (libitm_la_SOURCES): Add it.
+ * Makefile.in: Rebuild.
+ * beginend.c (gtm_stmlock_array, gtm_clock): New.
+ (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
+ * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
+ (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
+ gtm_stmlock_set_owned, gtm_stmlock_get_addr,
+ gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
+ gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
+ gtm_get_clock, gtm_inc_clock): New.
+ * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
+ LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
+ LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
+ locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
+ replace uses with new libitm_i.h symbols.
+ (dispatch_wbetl): Rename from wbetl_dispatch.
+ * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
+ away from dispatch_readonly; abort if the beginTransaction call
+ asserted that the transaction was readonly.
+
+2009-11-03 Richard Henderson <rth@redhat.com>
+
+ * memset.c: New file.
+ * Makefile.am (libitm_la_SOURCES): Add it.
+ * Makefile.in: Rebuild.
+ * testsuite/libitm.c/memset-1.c: New.
+
+2009-11-03 Richard Henderson <rth@redhat.com>
+
+ * dispatch.c: Remove file.
+ * useraction.c (struct gtm_user_action): Move from libitm.h.
+ * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
+ (serial_memset, serial_memmove, serial_memcpy): Remove.
+ (serial_W*, serial_R*): Remove.
+ (serial_dispatch): Update to match.
+ * configure.ac: Move Werror down below configure checks. Don't
+ check for sys/loadavg.h, do check for malloc.h. Don't check for
+ getloadavg and clock_gettime; do check for memalign, posix_memalign.
+ Use GCC_AC_FUNC_MMAP_BLACKLIST
+ * libitm.h: Split out all internal items to...
+ * libitm_i.h: ... here. New file.
+ * copymask.c: New file.
+ * local.c (struct gtm_local_undo): Move from libitm.h.
+ (GTM_alloc_local): Rename from alloc_local; export.
+ * memcpy.c: New file.
+ * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
+ * config/posix/page.c: New file.
+ * config/posix/target_tls.h: Remove file.
+ * barrier.c: New file.
+ * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
+ copymask.c, page.c.
+ * alloc.c (struct gtm_alloc_action): Move from libitm.h.
+ * method-wbetl.c: Rewrite for new cacheline methods.
+ * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.
+
+ * config/alpha/sjlj.S: Fix typo.
+ * config/alpha/target_i.h: Copy functions from alpha/target.h.
+ * config/alpha/copymask.c: New file.
+ * config/alpha/target.h (CACHELINE_SIZE): New.
+ (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.
+
+ * config/x86/target_i.h: Copy functions from x86/target.h.
+ * config/x86/copymask.c: New file.
+ * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
+ (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
+ (PAGE_SIZE, FIXED_PAGE_SIZE): New.
+ * config/x86/target_tls.h: Move contents to target_i.h.
+
+ * testsuite/libitm.c/clone-1.c: Include libitm.h.
+ * testsuite/libitm.c/memcpy-1.c: New.
+
+2009-10-22 Richard Henderson <rth@redhat.com>
+
+ * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
+ (AM_CCASFLAGS): New.
+ * configure.ac: Add AM_PROG_AS. Use m4_rename_force for
+ saving/restoring _AC_ARG_VAR_PRECIOUS.
+ * Makefile.in, aclocal.m4, config.h.in, configure,
+ testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.
+
+2009-10-22 Richard Henderson <rth@redhat.com>
+
+ * testsuite/*: Update for new compiler syntax.
+
+2009-10-21 Richard Henderson <rth@redhat.com>
+
+ * libitm.h (_ITM_abortReason): Add outerAbort.
+
+2009-08-03 Richard Henderson <rth@redhat.com>
+
+ * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
+ _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
+ * method-wbetl.c (struct w_entry): Remove mask.
+ (wbetl_write, wbetl_load): Return pointer to word containing the data;
+ adjust all callers.
+
+2009-07-22 Richard Henderson <rth@redhat.com>
+
+ * eh_cpp.c: New file.
+ * Makefile.am (libitm_la_SOURCES): Add it.
+ * Makefile.in: Rebuild.
+ * beginend.c (GTM_rollback_transaction): Undo exception state.
+ (GTM_trycommit_transaction): Mark inline.
+ (GTM_trycommit_and_finalize_transaction): Split out from ...
+ (_ITM_commitTransaction): ... here.
+ (_ITM_commitTransactionEH): New function.
+ * libitm.h (struct gtm_transaction): Add cxa_catch_count,
+ cxa_unthrown, eh_in_flight; reorder.
+
+ * testsuite/libitm.c++/c++.exp: New.
+ * testsuite/libitm.c++/eh-1.C: New.
+
+ * aatree.c (aa_free): Remove REGPARM.
+ * aatree.h: Remove all REGPARM.
+
+2009-07-18 Richard Henderson <rth@redhat.com>
+
+ * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
+ * Makefile.am (libitm_la_SOURCES): Add them.
+ * Makefile.in: Rebuild.
+ * beginend.c (GTM_rollback_transaction): Use
GTM_commit_allocations.
+ (GTM_trycommit_transaction): Likewise.
+ * libitm.h: Include aatree.h
+ (struct gtm_alloc_action): New.
+ (struct gtm_transaction): Add alloc_actions.
+ (GTM_record_allocation, GTM_forget_allocation): Declare.
+ (GTM_get_allocation_size, GTM_commit_allocations): Declare.
+ * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
+ _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
+ _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
+ _ZGTtdaPvRKSt9nothrow_t): Export.
+
+2009-07-18 Richard Henderson <rth@redhat.com>
+
+ * target_tls.h: Move ...
+ * config/posix/target_tls.h: ... here.
+
+2009-07-07 Richard Henderson <rth@redhat.com>
+
+ * config/x86/target.h (atomic_write_barrier): Use sfence if available.
+
+2009-07-07 Richard Henderson <rth@redhat.com>
+
+ * Update to GPL3.
+
+2009-07-07 Richard Henderson <rth@redhat.com>
+
+ * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
+ * beginend.c (global_tid): Widen to _ITM_transactionId_t.
+
+ * configure.tgt: Don't use -ftls-model for x86 linux.
+ * libitm.h: Include target.h after standard includes.
+ (_gtm_thr): Rename from gtm_thr.
+ (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
+ (gtm_disp, set_gtm_disp): New.
+ * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
+ retry.c, serial.c, useraction.c: Use accessor functions throughout.
+ * config/alpha/target_tls.h, config/x86/target_tls.h: New files.
+
+2009-07-07 Richard Henderson <rth@redhat.com>
+
+ * config/linux/rwlock.c (EZ): New define. Use it throughout.
+
+2009-07-06 Richard Henderson <rth@redhat.com>
+
+ * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
+ (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
+ (_ITM_beginTransaction): Take variadic arguments.
+ (_ITM_registerThrownObject): Declare.
+ * beginend.c, serial.c: Update.
+ * libitm.map: Add _ITM_registerThrownObject.
+
+2009-01-28 Richard Henderson <rth@redhat.com>
+
+ * Makefile.am (libitm_la_SOURCES): Add clone.c.
+ * Makefile.in: Rebuild.
+ * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
+ (GTM_restart_transaction): Fix uninstrumented code check.
+ * retry.c (GTM_decide_retry_strategy): Add serial check.
+ * serial.c (GTM_serialmode): Add irrevokable variable. Don't
+ automatically go irrevokable when in serial mode.
+ * clone.c: New file.
+ * libitm.h, libitm.map: Update.
+
+2009-01-27 Richard Henderson <rth@redhat.com>
+
+ * Makefile.am (LTCCASCOMPILE): Define.
+ (libitm_la_SOURCES): Add methid-wbetl.c.
+ * testsuite/Makefile.am: New
+ * configure.ac: Add testsuite/Makefile.
+ * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
+ * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
+ (_ITM_abortTransaction): Finalize implementation method; pass
+ transaction properties to longjmp.
+ (GTM_restart_transaction): Split out from ...
+ (_ITM_commitTransaction): ... here.
+ * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
+ Move to config/x86/target.h.
+ * config/linux/alpha/futex_bits.h: New.
+ * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
+ * config/x86/target.h: Disable target types for 32-bit.
+ * config/alpha/sjlj.S, config/alpha/target.h: New.
+ * libitm.h (struct gtm_dispatch): Add init, fini.
+ (enum restart_reason): New.
+ (struct gtm_transaction): Add method and restarts.
+ * retry.c (GTM_decide_retry_strategy): Implement.
+ * serial.c (serial_init, serial_fini): New.
+ (GTM_serialmode): Finialize outgoing method.
+ * method-wbetl.c: New.
+
+2008-12-09 Richard Henderson <rth@redhat.com>
+
+ * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
+ * configure.tgt (i386-*, x86_64-*): Don't force SSE.
+ * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
+ * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
+ (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
+ (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
+ * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
+ * serial.c (serial_R##T, serial_W##T): Likewise.
+
+2008-11-21 Richard Henderson <rth@redhat.com>
+
+ * Initial commit.
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