gcc/libitm/ChangeLog

2011-11-16  Uros Bizjak  <ubizjak@gmail.com>

	PR bootstrap/51098
	* acinclude.m4 (LIBITM_CHECK_AS_AVX): Fix target selector.
	* configure: Regenerate.

2011-11-14  H.J. Lu  <hongjiu.lu@intel.com>

	* testsuite/lib/libitm.exp: Check ia32 instead of ilp32.

2011-11-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
	.hidden.
	(.note.GNU-stack): Only use if __linux__.
	* alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
	* testsuite/libitm.c/notx.c: Use dg-options "-pthread".
	* testsuite/libitm.c/reentrant.c: Likewise.
	* testsuite/libitm.c/simple-2.c: Likewise.
	* testsuite/libitm.c/txrelease.c: Likewise.
	* testsuite/libitm.c++/static_ctor.C: Likewise.

2011-11-10  Richard Henderson  <rth@redhat.com>

	* config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
	* Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
	* configure.ac (ARCH_X86_AVX): New conditional.
	* Makefile.in, configure: Rebuild.

2011-11-09  Richard Henderson  <rth@redhat.com>

	* acinclude.m4 (LIBITM_CHECK_AS_AVX): New.
	* configure.ac: Use it.
	* config.h.in, configure: Rebuild.
	* config/x86/x86_avx.cc: Handle !HAVE_AS_AVX.

2011-11-09  Richard Henderson  <rth@redhat.com>

	* barrier.tpl, memcpy.cc, memset.cc, method-wbetl.cc: Remove file.
	* config/alpha/unaligned.h: Remove file.
	* config/generic/unaligned.h: Remove file.
	* config/x86/unaligned.h: Remove file.
	* config/generic/cachepage.h: Remove file.
	* config/posix/cachepage.cc: Remove file.
	* config/generic/cacheline.cc: Remove file.
	* config/x86/cacheline.cc: Remove file.
	* config/generic/cacheline.h (gtm_cacheline): Remove the
	store_mask, copy_mask, copy_mask_wb methods.
	* config/x86/cacheline.h: Likewise.
	* config/alpha/cacheline.h: Fall back to generic after setting size.
	* config/generic/tls.cc (gtm_mask_stack): Remove.
	* config/x86/x86_avx.cc (GTM_vpperm_shift): Remove.
	(GTM_vpalignr_table): Remove.
	* config/x86/x86_sse.cc (GTM_palignr_table): Remove.
	(GTM_pshift_table): Remove.
	* config/libitm_i.h: Don't include cachepage.h.
	* Makefile.am (libitm_la_SOURCES): Remove cacheline.cc, cachepage.cc
	* Makefile.in, testsuite/Makefile.in: Rebuild.

2011-11-09  Richard Henderson  <rth@redhat.com>

	* config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
	to emit branch prediction hint.

	* config/x86/sjlj.S: Protect elf directives with __ELF__.
	Protect .note.GNU-stack with __linux__.

	* configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
	* configure, aclocal.m4, config.h.in: Rebuild.
	* config/generic/asmcfi.h: New file.
	* config/x86/sjlj.S: Use it.

2011-11-08  Richard Henderson  <rth@redhat.com>

	* local.cc (_ITM_LB): Use a normal call, not a function alias.

2011-11-08  Richard Henderson  <rth@redhat.com>

	* configure.tgt: Test correct directory for supported cpus.

	* configure.ac: Exit if unsupported.
	* configure: Rebuild.
	* configure.tgt: Delete boilerplate from libgomp for unsupported
	targets.  Set UNSUPPORTED for unsupported targets.

2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	* configure.tgt: Handle i386 like i[456]86.
	* config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
	take address.
	* config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
	!HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.

2011-11-05  Aldy Hernandez  <aldyh@redhat.com>

	* method-wbetl.cc: Update copyright notice.
	* aatree.cc: Same.
	* util.cc: Same.
	* libitm.h: Same.
	* memset.cc: Same.
	* eh_cpp.cc: Same.
	* barrier.tpl: Same.
	* useraction.cc: Same.
	* stmlock.h: Same.
	* memcpy.cc: Same.
	* common.h: Same.
	* config/generic/tls.cc: Same.
	* config/generic/cacheline.h: Same.
	* config/generic/cachepage.h: Same.
	* config/generic/cacheline.cc: Same.
	* config/generic/unaligned.h: Same.
	* config/x86/cacheline.h: Same.
	* config/x86/cacheline.cc: Same.
	* config/x86/unaligned.h: Same.
	* config/alpha/cacheline.h: Same.
	* config/alpha/unaligned.h: Same.
	* config/alpha/sjlj.S: Same.
	* config/posix/cachepage.cc: Same.
	* config/linux/futex.h: Same.
	* config/linux/alpha/futex_bits.h: Same.

2011-11-04  Torvald Riegel  <triegel@redhat.com>

	* libitm.texi: No cover text and invariant sections.

2011-11-03  Richard Henderson  <rth@redhat.com>

	* local_type_traits: New file.
	* libitm_i.h: Use it.  Use C headers, not C++ wrappers.

2011-11-03  Richard Henderson  <rth@redhat.com>

	* configure.ac: Don't test for gfortran.
	* configure: Rebuild.

	* testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
	* testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

	* testsuite/libitm.c/memcpy-1.c: Add copyright notice.
	* testsuite/libitm.c/memset-1.c: Same.
	* testsuite/libitm.c/c.exp: Same.
	* testsuite/lib/libitm-dg.exp: Same.
	* testsuite/lib/libitm.exp: Same.
	* testsuite/libitm.c++/c++.exp: Same.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

	* testsuite/config/default.exp: Update copyright date.
	* configure.ac: Add copyright info.
	* configure.tgt: Same.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

	* testsuite/libitm.c/reentrant.c: XFAIL.
	* testsuite/libitm.c++/static_ctor.C: XFAIL.

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.