libitm/ChangeLog

   1 2011-11-09  Richard Henderson  <rth@redhat.com>
   2
   3         * config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
   4         to emit branch prediction hint.
   5
   6         * config/x86/sjlj.S: Protect elf directives with __ELF__.
   7         Protect .note.GNU-stack with __linux__.
   8
   9         * configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
  10         * configure, aclocal.m4, config.h.in: Rebuild.
  11         * config/generic/asmcfi.h: New file.
  12         * config/x86/sjlj.S: Use it.
  13
  14 2011-11-08  Richard Henderson  <rth@redhat.com>
  15
  16         * local.cc (_ITM_LB): Use a normal call, not a function alias.
  17
  18 2011-11-08  Richard Henderson  <rth@redhat.com>
  19
  20         * configure.tgt: Test correct directory for supported cpus.
  21
  22         * configure.ac: Exit if unsupported.
  23         * configure: Rebuild.
  24         * configure.tgt: Delete boilerplate from libgomp for unsupported
  25         targets.  Set UNSUPPORTED for unsupported targets.
  26
  27 2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
  28
  29         * configure.tgt: Handle i386 like i[456]86.
  30         * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
  31         take address.
  32         * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
  33         !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.
  34
  35 2011-11-05  Aldy Hernandez  <aldyh@redhat.com>
  36
  37         * method-wbetl.cc: Update copyright notice.
  38         * aatree.cc: Same.
  39         * util.cc: Same.
  40         * libitm.h: Same.
  41         * memset.cc: Same.
  42         * eh_cpp.cc: Same.
  43         * barrier.tpl: Same.
  44         * useraction.cc: Same.
  45         * stmlock.h: Same.
  46         * memcpy.cc: Same.
  47         * common.h: Same.
  48         * config/generic/tls.cc: Same.
  49         * config/generic/cacheline.h: Same.
  50         * config/generic/cachepage.h: Same.
  51         * config/generic/cacheline.cc: Same.
  52         * config/generic/unaligned.h: Same.
  53         * config/x86/cacheline.h: Same.
  54         * config/x86/cacheline.cc: Same.
  55         * config/x86/unaligned.h: Same.
  56         * config/alpha/cacheline.h: Same.
  57         * config/alpha/unaligned.h: Same.
  58         * config/alpha/sjlj.S: Same.
  59         * config/posix/cachepage.cc: Same.
  60         * config/linux/futex.h: Same.
  61         * config/linux/alpha/futex_bits.h: Same.
  62
  63 2011-11-04  Torvald Riegel  <triegel@redhat.com>
  64
  65         * libitm.texi: No cover text and invariant sections.
  66
  67 2011-11-03  Richard Henderson  <rth@redhat.com>
  68
  69         * local_type_traits: New file.
  70         * libitm_i.h: Use it.  Use C headers, not C++ wrappers.
  71
  72 2011-11-03  Richard Henderson  <rth@redhat.com>
  73
  74         * configure.ac: Don't test for gfortran.
  75         * configure: Rebuild.
  76
  77         * testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
  78         * testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.
  79
  80 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
  81
  82         * testsuite/libitm.c/memcpy-1.c: Add copyright notice.
  83         * testsuite/libitm.c/memset-1.c: Same.
  84         * testsuite/libitm.c/c.exp: Same.
  85         * testsuite/lib/libitm-dg.exp: Same.
  86         * testsuite/lib/libitm.exp: Same.
  87         * testsuite/libitm.c++/c++.exp: Same.
  88
  89 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
  90
  91         * testsuite/config/default.exp: Update copyright date.
  92         * configure.ac: Add copyright info.
  93         * configure.tgt: Same.
  94
  95 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
  96
  97         * testsuite/libitm.c/reentrant.c: XFAIL.
  98         * testsuite/libitm.c++/static_ctor.C: XFAIL.
  99
 100 2011-10-29  Torvald Riegel  <triegel@redhat.com>
 101
 102         * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
 103         handle aborts.
 104         (_ITM_abortTransaction): Handle aborts of outer transactions.
 105         * libitm_i.h: Same.
 106         * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
 107         * libitm.texi: Document aborts of outer transactions.
 108         * testsuite/libitm.c/cancel.c: New file.
 109
 110 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 111
 112         * testsuite/*: Change __transaction to __transaction_atomic or
 113         __transaction_relaxed.
 114
 115 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 116
 117         * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
 118         (gtm_thr): Same.
 119
 120 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 121
 122         * libitm_i.h: Add gl_wt dispatch.
 123         * retry.cc (parse_default_method): Same.
 124         * method-gl.cc: New file.
 125         * Makefile.am: Use method-gl.cc.
 126         * Makefile.in: Rebuild.
 127
 128 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 129
 130         * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
 131         safety if requested by a TM method.
 132         * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
 133         privatization safety.
 134         * method-serial.cc: Same.
 135
 136 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 137
 138         * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
 139         (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
 140         undolog-related member functions from *_local to *_undolog.
 141         * local.cc (gtm_thread::commit_undolog): Same.
 142         * beginend.cc (GTM::gtm_thread::trycommit): Same.
 143         (GTM::gtm_thread::rollback): Roll back undolog before
 144         dispatch-specific rollback.
 145
 146 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 147
 148         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
 149         re-initialization of the current method group.
 150         * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.
 151
 152 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 153
 154         * alloc.cc (commit_allocations_2): Do not free transaction-local
 155         memory when committing a nested transaction.
 156
 157 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 158
 159         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
 160         serial-irrevocable dispatch, not serial.
 161
 162 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 163
 164         * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
 165         declarations.
 166         * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
 167         * method-serial.cc: Implement begin_or_restart().
 168         * beginend.cc (GTM::gtm_thread::begin_transaction): Call
 169         dispatch-specific begin_or_restart().
 170         (GTM::gtm_thread::restart): Same.
 171
 172 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 173
 174         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
 175         restarting without switching to serial mode.
 176         (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
 177         transaction state. Choose closed-nesting alternative if available.
 178         (GTM::gtm_thread::set_default_dispatch): New.
 179         (parse_default_method): New.
 180         (GTM::gtm_thread::number_of_threads_changed): New.
 181         * method-serial.cc (GTM::serial_mg): New method group class.
 182         (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
 183         fini.
 184         (GTM::serial_dispatch): Same.
 185         (GTM::serialirr_onwrite_dispatch): Same.
 186         (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
 187         * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
 188         registered threads.
 189         (GTM::gtm_thread::gtm_thread): Same.
 190         (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
 191         (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
 192         (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
 193         choose dispatch but set state according to dispatch here.
 194         * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
 195         (GTM::method_group): New class.
 196         (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
 197         * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
 198         * libitm.texi: Document TM methods, method groups, method life cycle.
 199         Rename method sets to method groups.
 200
 201 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 202
 203         * config/x86/tls.h: Moved to ...
 204         * config/linux/x86/tls.h: ... here.
 205
 206 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 207
 208         * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
 209         Add X32 support.
 210         * config/x86/sjlj.S: Same.
 211
 212 2011-08-19  Torvald Riegel  <triegel@redhat.com>
 213
 214         * config/linux/rwlock.h: New file.
 215         * config/linux/rwlock.c: New file.
 216         * configure.ac: Reenable futex support (undo SVN rev 157758).
 217         * Makefile.am: Same.
 218         * configure.tgt: Same.
 219         * config/linux/alpha/futex_bits.h: Same.
 220         * config/linux/futex.h: Same. Return number of woken processes.
 221         * config/linux/futex.cc: Same.
 222         (futex_wait): Remove spinning.
 223         * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
 224         Use __x86_64__ instead of __LP64__.
 225         * aclocal.m4: Include generic futex checks.
 226         * configure: Rebuild.
 227         * Makefile.in: Rebuild.
 228         * testsuite/Makefile.in: Rebuild.
 229         * beginend.cc: Include pthread.h.
 230         * config/posix/cachepage.cc: Same.
 231
 232 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 233
 234         * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 235         (abi_disp, set_abi_disp): Move to tx's TLS slot.
 236         (set_gtm_thr): New.
 237         * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 238         (set_gtm_thr): New.
 239         (GTM::gtm_thread::thread_num): Removed.
 240         (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
 241         * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
 242         tx-to-thread renaming.
 243         * beginend.cc: Adapted to tx-to-thread renaming.
 244         (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
 245         (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
 246         * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
 247         gtm_transaction to gtm_thread.
 248         (_ITM_getThreadnum): Removed. Not supported anymore.
 249         * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
 250         * libitm.texi: Documented that _ITM_getThreadnum is not supported.
 251         * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
 252         gtm_tx-to-gtm_thr renaming if necessary.
 253         * eh_cpp.cc: Same.
 254         * local.cc: Same.
 255         * retry.cc: Same.
 256         * clone.cc: Same.
 257         * alloc.cc: Same.
 258         * alloc_c.cc: Same.
 259         * alloc_cpp.cc: Same.
 260         * method-serial.cc: Same.
 261         * config/generic/tls.cc: Same.
 262         * config/posix/rwlock.h (gtm_rwlock): Same.
 263         * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.
 264
 265 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 266
 267         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
 268         implementation.
 269         (gtm_rwlock::read_unlock): Same.
 270         (gtm_rwlock::write_lock_generic): New. Generalized from ...
 271         (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
 272         * libitm_i.h (GTM::gtm_transaction): Added shared_state.
 273         * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
 274         w_upgrade. Replaced by per-transaction flags (in shared_state).
 275         Added c_confirmed_writers.
 276         (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
 277         GTM::gtm_rwlock::write_upgrade): Add tx parameter.
 278         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
 279         * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
 280         * beginend.cc (GTM::gtm_transaction::begin_transaction,
 281         _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
 282         * libitm.texi: Document locking conventions and implementations in
 283         libitm.
 284
 285 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 286
 287         * libitm_i.h (next_tx): Add list of all threads' transaction.
 288         * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
 289         transaction with list of transactions and ...
 290         (thread_exit_handler): ... deregister here.
 291         * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
 292         * config/x86/target.h: Same.
 293
 294 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 295
 296         * testsuite/libitm.c++/static_ctor.C: New file.
 297
 298 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 299
 300         * testsuite/libitm.c/reentrant.c: New file.
 301
 302 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 303
 304         * config/generic/tls.h: Remove the free list for transactions and ...
 305         * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
 306         (GTM::gtm_transaction::operator delete): ... and release here.
 307         (thread_exit_handler): New. Delete tx when thread terminates.
 308         (thread_exit_init): New.
 309         (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
 310         * testsuite/libitm.c/txrelease.c: New file.
 311
 312 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 313
 314         * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
 315         * testsuite/libitm.c/notx.c: New file.
 316
 317 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 318
 319         * config/generic/tls.h (gtm_thread): Move local_tid from here ...
 320         * libitm_i.h (local_tid): ... to here.
 321         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
 322         (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.
 323
 324 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 325
 326         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
 327         serialirr_onwrite_dispatch as new default for now.
 328         * method-serial.cc (serialirr_onwrite_dispatch): New.
 329         (GTM::dispatch_serialirr_onwrite): New.
 330         * libitm_i.h: Same.
 331
 332 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 333
 334         * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
 335         * query.cc (_ITM_getTransactionId): There is no active transaction if
 336         the current nesting level is zero.
 337
 338 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 339
 340         * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
 341         rollback.
 342
 343 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 344
 345         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
 346         transaction properties from the caller instead of from the
 347         transaction object.
 348         * libitm_i.h: Same.
 349         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
 350
 351 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 352
 353         * local.cc (gtm_transaction::rollback_local): Support closed nesting.
 354         * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
 355         * dispatch.h: Same.
 356         * method-serial.cc: Same.
 357         * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
 358         flat nesting as default, and closed nesting on demand.
 359         (GTM::gtm_transaction::rollback): Same.
 360         (_ITM_abortTransaction): Same.
 361         (GTM::gtm_transaction::restart): Same.
 362         (GTM::gtm_transaction::trycommit): Same.
 363         (GTM::gtm_transaction::trycommit_and_finalize): Removed.
 364         (choose_code_path): New.
 365         (GTM::gtm_transaction_cp::save): New.
 366         (GTM::gtm_transaction_cp::commit): New.
 367         * query.cc (_ITM_inTransaction): Support flat nesting.
 368         * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
 369         (GTM::gtm_transaction): Support flat and closed nesting.
 370         * alloc.cc (commit_allocations_2): New.
 371         (commit_cb_data): New helper struct.
 372         (GTM::gtm_transaction::commit_allocations): Handle nested
 373         commits/rollbacks.
 374         * libitm.texi: Update user action section, add description of nesting.
 375
 376 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 377
 378         * libitm_i.h: Add closed nesting as restart reason.
 379         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
 380
 381 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 382
 383         * useraction.cc: Use vector instead of list to store actions.
 384         Also support partial rollbacks for closed nesting.
 385         * libitm_i.h (GTM::gtm_transaction::user_action): Same.
 386         * beginend.cc: Same.
 387
 388 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 389
 390         * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
 391         closed_nesting flags, as well as a closed nesting alternative.
 392         * method-serial.cc: Same.
 393         (serial_dispatch): Renamed to serialirr_dispatch.
 394         (GTM::dispatch_serialirr): Same.
 395         (serial_dispatch_ul): Renamed to serial_dispatch.
 396         (GTM::dispatch_serial): Same.
 397
 398 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 399
 400         * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.
 401
 402 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 403
 404         * aatree.h (aa_tree::remove): New.
 405         (aa_tree::operator new): Add placement new.
 406
 407 2011-07-02  Torvald Riegel  <triegel@redhat.com>
 408
 409         * containers.h: New file.
 410         * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
 411         * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
 412         * common.h: ... to here.
 413         (local_undo): Use GTM::vector for gtm_transaction::local_undo.
 414         * local.cc: Same.
 415
 416 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 417
 418         * libitm_i.h (STATE_ABORTING): Remove.
 419         * beginend.cc (_ITM_abortTransaction): Same.
 420         (GTM::gtm_transaction::trycommit_and_finalize): Same.
 421         * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
 422         (_ITM_rollbackTransaction): Remove.
 423         * beginend.cc: Same.
 424         * libitm.map: Same.
 425         * libitm.texi: Document these ABI changes.
 426
 427 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 428
 429         * libitm.texi: New file.
 430         * Makefile.am: Add libitm.texi.
 431         * Makefile.in: Rebuild.
 432
 433 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 434
 435         * libitm_i.h: Move parts to common.h and dispatch.h.
 436         * common.h: New file.
 437         * dispatch.h: New file, new dispatch class.
 438         Rename GTM::abi_dispatch::lock_type to ls_modifier.
 439         RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
 440         * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
 441         decision to retry.cc.
 442         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
 443         only.
 444         (GTM::gtm_transaction::decide_begin_dispatch): Same.
 445         * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
 446         logging.
 447         * barrier.cc: Use new barriers definitions.
 448         (abi_dispatch::memmove_overlap_check): New.
 449         * config/x86/x86_sse.cc: Same.
 450         * config/x86/x86_avx.cc: Same.
 451         * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
 452         memcpy.cc.
 453         * Makefile.in: Rebuild.
 454         * method-readonly.cc: Remove.
 455         * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
 456         Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.
 457
 458 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 459
 460         * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
 461         * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
 462         * testsuite/libitm.c/dropref-2.c: Same.
 463         * testsuite/libitm.c/dropref.c: Same.
 464
 465 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 466
 467         * config/generic/tls.h (gtm_disp): Rename to abi_disp.
 468         * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
 469         * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
 470         * alloc_c.cc: Same.
 471         * barrier.tpl: Same.
 472         * beginend.c: Same.
 473         * config/generic/tls.h: Same.
 474         * config/x86/tls.h: Same.
 475         * libitm_i.h: Same.
 476         * memcpy.cc: Same.
 477         * memset.cc: Same.
 478         * method-readonly.cc: Same.
 479         * method-serial.cc: Same.
 480         * method-wbetl.cc: Same.
 481         * retry.cc: Same.
 482
 483 2011-03-03  Richard Henderson  <rth@redhat.com>
 484
 485         * config/posix/rwlock.cc (write_upgrade): Add missing case.
 486         From Patrik Marlier <patrick.marlier@unine.ch>.
 487
 488 2011-02-03  Richard Henderson  <rth@redhat.com>
 489
 490         * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
 491         * configure.ac: Use it.
 492         * configure, config.h.in: Rebuild.
 493         * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
 494         (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
 495         _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
 496         * libitm.map: Use wildcards to match size_t mangling.
 497
 498 2010-12-14  Richard Henderson  <rth@redhat.com>
 499
 500         * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
 501         blocks of TIDs per thread.
 502         * config/generic/tls.h (struct gtm_thread): Add local_tid member.
 503         (setup_gtm_thr): Return the thread structure.
 504         * config/x86/tls.h (setup_gtm_thr): Likewise.
 505
 506 2010-12-14  Richard Henderson  <rth@redhat.com>
 507
 508         * clone.cc (table_lock): Remove.
 509         (find_clone): Don't take it.
 510         (ExcludeTransaction): New helper class.
 511         (_ITM_registerTMCloneTable): Use it.
 512         (_ITM_deregisterTMCloneTable): Likewise.
 513
 514 2010-12-14  Richard Henderson  <rth@redhat.com>
 515
 516         * config/x86/tls.h: New file.
 517
 518 2010-07-15  Richard Henderson  <rth@redhat.com>
 519
 520         * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
 521         * Makefile.in: Rebuild.
 522
 523 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
 524
 525         * method-wbetl.cc (trydropreference): Fix source line.
 526
 527 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
 528
 529         * libitm.h: Add comment.
 530         * libitm_i.h (begin_transaction): Add ITM_REGPARM.
 531
 532 2010-07-07  Aldy Hernandez  <aldyh@redhat.com>
 533
 534         * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
 535         * beginend.cc (begin_transaction): If 64-bit sync builtins are not
 536         available, use pthread mutexes.
 537         * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
 538         * config.h.in: Regenerate.
 539         * configure: Regenerate.
 540
 541 2010-07-06  Aldy Hernandez  <aldyh@redhat.com>
 542
 543         * libitm.h (ITM_PURE): Define.
 544         Declare _ITM_malloc, _ITM_calloc, and _ITM_free.
 545
 546 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
 547
 548         * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
 549         (validate): Add comment.
 550         (trydropreference): New.
 551         * method-readonly.cc (class readonly_dispatch): Add
 552         trydropreference.
 553         * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
 554         Call trydropreference().
 555         * libitm.h (_ITM_dropReferences): Remove const attribute.
 556         * method-serial.cc (class serial_dispatch): Add trydropreference.
 557         * libitm_i.h (struct gtm_dispatch): Add trydropreference.
 558
 559 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
 560
 561         * memcpy.cc (do_memcpy): Comment.
 562
 563 2010-06-25  Aldy Hernandez  <aldyh@redhat.com>
 564
 565         * barrier.tpl: Add comments throughout.
 566
 567 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
 568
 569         * method-wbetl.cc (struct w_entry): Add comments.
 570         (trycommit): Same.
 571         (rollback): Same.
 572
 573 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
 574
 575         * alloc_c.cc (_ITM_dropReferences): New.
 576         * libitm.map (_ITM_dropReferences): Add.
 577         * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
 578         * libitm_i.h (struct gtm_transaction): Declare
 579         drop_references_allocations and drop_references_local.
 580         * local.cc (rollback_local): Ignore memory when applicable.
 581         (drop_references_local): New.
 582
 583 2010-06-23  Richard Henderson  <rth@redhat.com>
 584
 585         * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
 586         memset.cc, method-serial.cc: Revert the 2010-06-16 change.
 587         * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
 588         * config/alpha/target.h: Likewise.
 589         * config/generic/tls.cc (gtm_mask_stack): Use it.
 590
 591 2010-06-23  Richard Henderson  <rth@redhat.com>
 592
 593         * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
 594         a mutex instead of trying a lock-free compare-and-swap on the list.
 595         (gtm_cacheline_page::operator delete): Likewise.
 596
 597 2010-06-16  Richard Henderson  <rth@redhat.com>
 598
 599         * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
 600         that overlap the libitm stack.
 601         * barrier.tpl: Mark incoming stack.
 602         * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
 603         _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
 604         * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
 605         * memcpy.cc, memset.cc: Likewise.
 606         * method-serial.cc (_ITM_changeTransactionMode): Likewise.
 607         * config/generic/tls.h (gtm_thread): Add stack_top member.
 608         (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
 609         * libitm_i.h (gtm_mask_stack): Declare.
 610         * config/generic/tls.cc: New file.
 611         * Makefile.am (libitm_la_SOURCES): Add it.
 612         (AM_CXXFLAGS): Turn off exceptions.
 613         * Makefile.in: Rebuild.
 614
 615 2010-06-16  Richard Henderson  <rth@redhat.com>
 616
 617         * alloc.cc (struct gtm_alloc_action): Move definition ...
 618         * libitm_i.h: ... here.
 619         (class gtm_transaction): Declare new and delete.
 620         * beginend.cc (alloc_tx): Reformulate as operator new.
 621         (free_tx): Reformulate as operator delete.
 622         * config/generic/tls.h (gtm_thread): Change free_tx member to void *.
 623
 624 2010-06-11  Richard Henderson  <rth@redhat.com>
 625
 626         * clone.cc (clone_entry_compare): Fix typo.
 627         From Patrik Marlier <patrick.marlier@unine.ch>.
 628
 629 2010-05-13  Richard Henderson  <rth@redhat.com>
 630
 631         * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
 632         in extern "C".
 633
 634 2010-05-07  Aldy Hernandez  <aldyh@redhat.com>
 635
 636         * libitm_i.h (struct gtm_transaction): Remove
 637         get_allocation_size.
 638         (record_allocation): Remove size parameter.
 639         * libitm.map (_ITM_realloc): Remove.
 640         * alloc_c.cc (_ITM_realloc): Remove.
 641         (_ITM_malloc): Remove size argument to record_allocation.
 642         (_ITM_calloc): Same.
 643         * alloc_cpp.cc (_ZGTtnwm): Same.
 644         (_ZGTtnwmRKSt9nothrow_t): Same.
 645         (_ZGTtnam): Same.
 646         (_ZGTtnamRKSt9nothrow_t): Same.
 647         * alloc.cc (struct gtm_alloc_action): Remove size.
 648         (get_allocation_size): Remove.
 649         (commit_allocations): Add comment.
 650         (record_allocation): Remove size parameter.
 651         (forget_allocation): Remove set of size.
 652
 653 2010-04-19  Aldy Hernandez  <aldyh@redhat.com>
 654
 655         * Makefile.am (abi_version): New.
 656         (AM_CXXFLAGS): Pass abi_version.
 657         * Makefile.in: Regenerate.
 658         * config/x86/unaligned.h: Remove always_inline kludge for vectors.
 659
 660 2010-04-06  Aldy Hernandez  <aldyh@redhat.com>
 661
 662         * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
 663         _ITM_getTMCloneOrIrrevokable.
 664         * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
 665         * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.
 666
 667 2010-03-26  Aldy Hernandez  <aldyh@redhat.com>
 668
 669         * configure.ac: Remove Linux futex support.
 670         * configure.tgt (config_path): Same.
 671         * Makefile.am: Same.
 672         * config/linux: Remove entire directory.
 673         * configure: Rebuild.
 674         * Makefile.in: Rebuild.
 675         * testsuite/Makefile.in: Rebuild.
 676
 677 2010-03-09  Aldy Hernandez  <aldyh@redhat.com>
 678
 679         * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
 680         switching to serial mode.
 681         * beginend.cc (trycommit_and_finalize): Unlock serial_lock.
 682
 683 2010-03-03  Aldy Hernandez  <aldyh@redhat.com>
 684
 685         * configure.tgt: Add emacs -*- tags.
 686         * barrier.tpl: Same.
 687
 688 2010-02-23  Aldy Hernandez  <aldyh@redhat.com>
 689
 690         * Makefile.am: Rename serial.cc to method-serial.cc.
 691         * Makefile.in: Regenerate with automake 1.11.1.
 692         * testsuite/Makefile.in: Same.
 693         * aclocal.m4: Regenerate with aclocal 1.11.1.
 694         * method-serial.cc: Rename from serial.cc.
 695         * libitm_i.h (struct gtm_transaction): Update comment on
 696         serialirr_mode.
 697
 698 2010-02-22  Aldy Hernandez  <aldyh@redhat.com>
 699
 700         * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
 701         * config/linux/rwlock.h (class gtm_rwlock): Add comments.
 702
 703 2010-02-11  Aldy Hernandez  <aldyh@redhat.com>
 704
 705         * configure: Rebuild.
 706
 707 2009-11-12  Richard Henderson  <rth@redhat.com>
 708
 709         * Rewrite everything in C++.
 710
 711 2009-11-03  Richard Henderson  <rth@redhat.com>
 712
 713         * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
 714         * Makefile.am (libitm_la_SOURCES): Add them.
 715         * configure.ac (ARCH_X86): New conditional.
 716         * Makefile.in, configure: Rebuild.
 717         * configure.tgt: Set up ARCH; do cflags setup at the same time.
 718         Move futex setup into "other system configury" case.
 719         * local.c (rollback_local): Merge into ...
 720         (GTM_rollback_local): ... here.
 721         (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
 722         (_ITM_LB): Define as an alias to GTM_LB.
 723
 724 2009-11-03  Richard Henderson  <rth@redhat.com>
 725
 726         * method-readonly.c: New file.
 727         * Makefile.am (libitm_la_SOURCES): Add it.
 728         * Makefile.in: Rebuild.
 729         * beginend.c (gtm_stmlock_array, gtm_clock): New.
 730         (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
 731         * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
 732         (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
 733         gtm_stmlock_set_owned, gtm_stmlock_get_addr,
 734         gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
 735         gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
 736         gtm_get_clock, gtm_inc_clock): New.
 737         * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
 738         LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
 739         LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
 740         locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
 741         replace uses with new libitm_i.h symbols.
 742         (dispatch_wbetl): Rename from wbetl_dispatch.
 743         * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
 744         away from dispatch_readonly; abort if the beginTransaction call
 745         asserted that the transaction was readonly.
 746
 747 2009-11-03  Richard Henderson  <rth@redhat.com>
 748
 749         * memset.c: New file.
 750         * Makefile.am (libitm_la_SOURCES): Add it.
 751         * Makefile.in: Rebuild.
 752         * testsuite/libitm.c/memset-1.c: New.
 753
 754 2009-11-03  Richard Henderson  <rth@redhat.com>
 755
 756         * dispatch.c: Remove file.
 757         * useraction.c (struct gtm_user_action): Move from libitm.h.
 758         * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
 759         (serial_memset, serial_memmove, serial_memcpy): Remove.
 760         (serial_W*, serial_R*): Remove.
 761         (serial_dispatch): Update to match.
 762         * configure.ac: Move Werror down below configure checks.  Don't
 763         check for sys/loadavg.h, do check for malloc.h.  Don't check for
 764         getloadavg and clock_gettime; do check for memalign, posix_memalign.
 765         Use GCC_AC_FUNC_MMAP_BLACKLIST
 766         * libitm.h: Split out all internal items to...
 767         * libitm_i.h: ... here.  New file.
 768         * copymask.c: New file.
 769         * local.c (struct gtm_local_undo): Move from libitm.h.
 770         (GTM_alloc_local): Rename from alloc_local; export.
 771         * memcpy.c: New file.
 772         * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
 773         * config/posix/page.c: New file.
 774         * config/posix/target_tls.h: Remove file.
 775         * barrier.c: New file.
 776         * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
 777         copymask.c, page.c.
 778         * alloc.c (struct gtm_alloc_action): Move from libitm.h.
 779         * method-wbetl.c: Rewrite for new cacheline methods.
 780         * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.
 781
 782         * config/alpha/sjlj.S: Fix typo.
 783         * config/alpha/target_i.h: Copy functions from alpha/target.h.
 784         * config/alpha/copymask.c: New file.
 785         * config/alpha/target.h (CACHELINE_SIZE): New.
 786         (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.
 787
 788         * config/x86/target_i.h: Copy functions from x86/target.h.
 789         * config/x86/copymask.c: New file.
 790         * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
 791         (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
 792         (PAGE_SIZE, FIXED_PAGE_SIZE): New.
 793         * config/x86/target_tls.h: Move contents to target_i.h.
 794
 795         * testsuite/libitm.c/clone-1.c: Include libitm.h.
 796         * testsuite/libitm.c/memcpy-1.c: New.
 797
 798 2009-10-22  Richard Henderson  <rth@redhat.com>
 799
 800         * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
 801         (AM_CCASFLAGS): New.
 802         * configure.ac: Add AM_PROG_AS.  Use m4_rename_force for
 803         saving/restoring _AC_ARG_VAR_PRECIOUS.
 804         * Makefile.in, aclocal.m4, config.h.in, configure,
 805         testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.
 806
 807 2009-10-22  Richard Henderson  <rth@redhat.com>
 808
 809         * testsuite/*: Update for new compiler syntax.
 810
 811 2009-10-21  Richard Henderson  <rth@redhat.com>
 812
 813         * libitm.h (_ITM_abortReason): Add outerAbort.
 814
 815 2009-08-03  Richard Henderson  <rth@redhat.com>
 816
 817         * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
 818         _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
 819         * method-wbetl.c (struct w_entry): Remove mask.
 820         (wbetl_write, wbetl_load): Return pointer to word containing the data;
 821         adjust all callers.
 822
 823 2009-07-22  Richard Henderson  <rth@redhat.com>
 824
 825         * eh_cpp.c: New file.
 826         * Makefile.am (libitm_la_SOURCES): Add it.
 827         * Makefile.in: Rebuild.
 828         * beginend.c (GTM_rollback_transaction): Undo exception state.
 829         (GTM_trycommit_transaction): Mark inline.
 830         (GTM_trycommit_and_finalize_transaction): Split out from ...
 831         (_ITM_commitTransaction): ... here.
 832         (_ITM_commitTransactionEH): New function.
 833         * libitm.h (struct gtm_transaction): Add cxa_catch_count,
 834         cxa_unthrown, eh_in_flight; reorder.
 835
 836         * testsuite/libitm.c++/c++.exp: New.
 837         * testsuite/libitm.c++/eh-1.C: New.
 838
 839         * aatree.c (aa_free): Remove REGPARM.
 840         * aatree.h: Remove all REGPARM.
 841
 842 2009-07-18  Richard Henderson  <rth@redhat.com>
 843
 844         * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
 845         * Makefile.am (libitm_la_SOURCES): Add them.
 846         * Makefile.in: Rebuild.
 847         * beginend.c (GTM_rollback_transaction): Use GTM_commit_allocations.
 848         (GTM_trycommit_transaction): Likewise.
 849         * libitm.h: Include aatree.h
 850         (struct gtm_alloc_action): New.
 851         (struct gtm_transaction): Add alloc_actions.
 852         (GTM_record_allocation, GTM_forget_allocation): Declare.
 853         (GTM_get_allocation_size, GTM_commit_allocations): Declare.
 854         * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
 855         _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
 856         _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
 857         _ZGTtdaPvRKSt9nothrow_t): Export.
 858
 859 2009-07-18  Richard Henderson  <rth@redhat.com>
 860
 861         * target_tls.h: Move ...
 862         * config/posix/target_tls.h: ... here.
 863
 864 2009-07-07  Richard Henderson  <rth@redhat.com>
 865
 866         * config/x86/target.h (atomic_write_barrier): Use sfence if available.
 867
 868 2009-07-07  Richard Henderson  <rth@redhat.com>
 869
 870         * Update to GPL3.
 871
 872 2009-07-07  Richard Henderson  <rth@redhat.com>
 873
 874         * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
 875         * beginend.c (global_tid): Widen to _ITM_transactionId_t.
 876
 877         * configure.tgt: Don't use -ftls-model for x86 linux.
 878         * libitm.h: Include target.h after standard includes.
 879         (_gtm_thr): Rename from gtm_thr.
 880         (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
 881         (gtm_disp, set_gtm_disp): New.
 882         * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
 883         retry.c, serial.c, useraction.c: Use accessor functions throughout.
 884         * config/alpha/target_tls.h, config/x86/target_tls.h: New files.
 885
 886 2009-07-07  Richard Henderson  <rth@redhat.com>
 887
 888         * config/linux/rwlock.c (EZ): New define.  Use it throughout.
 889
 890 2009-07-06  Richard Henderson  <rth@redhat.com>
 891
 892         * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
 893         (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
 894         (_ITM_beginTransaction): Take variadic arguments.
 895         (_ITM_registerThrownObject): Declare.
 896         * beginend.c, serial.c: Update.
 897         * libitm.map: Add _ITM_registerThrownObject.
 898
 899 2009-01-28  Richard Henderson  <rth@redhat.com>
 900
 901         * Makefile.am (libitm_la_SOURCES): Add clone.c.
 902         * Makefile.in: Rebuild.
 903         * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
 904         (GTM_restart_transaction): Fix uninstrumented code check.
 905         * retry.c (GTM_decide_retry_strategy): Add serial check.
 906         * serial.c (GTM_serialmode): Add irrevokable variable.  Don't
 907         automatically go irrevokable when in serial mode.
 908         * clone.c: New file.
 909         * libitm.h, libitm.map: Update.
 910
 911 2009-01-27  Richard Henderson  <rth@redhat.com>
 912
 913         * Makefile.am (LTCCASCOMPILE): Define.
 914         (libitm_la_SOURCES): Add methid-wbetl.c.
 915         * testsuite/Makefile.am: New
 916         * configure.ac: Add testsuite/Makefile.
 917         * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
 918         * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
 919         (_ITM_abortTransaction): Finalize implementation method; pass
 920         transaction properties to longjmp.
 921         (GTM_restart_transaction): Split out from ...
 922         (_ITM_commitTransaction): ... here.
 923         * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
 924         Move to config/x86/target.h.
 925         * config/linux/alpha/futex_bits.h: New.
 926         * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
 927         * config/x86/target.h: Disable target types for 32-bit.
 928         * config/alpha/sjlj.S, config/alpha/target.h: New.
 929         * libitm.h (struct gtm_dispatch): Add init, fini.
 930         (enum restart_reason): New.
 931         (struct gtm_transaction): Add method and restarts.
 932         * retry.c (GTM_decide_retry_strategy): Implement.
 933         * serial.c (serial_init, serial_fini): New.
 934         (GTM_serialmode): Finialize outgoing method.
 935         * method-wbetl.c: New.
 936
 937 2008-12-09  Richard Henderson  <rth@redhat.com>
 938
 939         * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
 940         * configure.tgt (i386-*, x86_64-*): Don't force SSE.
 941         * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
 942         * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
 943         (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
 944         (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
 945         * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
 946         * serial.c (serial_R##T, serial_W##T): Likewise.
 947
 948 2008-11-21  Richard Henderson  <rth@redhat.com>
 949
 950         * Initial commit.