libitm/ChangeLog

   1 2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
   2
   3         * config/powerpc/sjlj.S [__powerpc64__ && _CALL_ELF == 2]:
   4         (FUNC): Define ELFv2 variant.
   5         (END): Likewise.
   6         (HIDDEN): Likewise.
   7         (CALL): Likewise.
   8         (BASE): Likewise.
   9         (LR_SAVE): Likewise.
  10
  11 2013-09-20  Alan Modra  <amodra@gmail.com>
  12
  13         * configure: Regenerate.
  14
  15 2013-08-30  Torvald Riegel  <triegel@redhat.com>
  16
  17         * config/posix/rwlock.cc: Fix initialization order.
  18
  19 2013-08-30  Torvald Riegel  <triegel@redhat.com>
  20
  21         * libitm_i.h (gtm_thread): Assign an asm name to serial_lock.
  22         (htm_fastpath): Assign an asm name.
  23         * libitm.h (_ITM_codeProperties): Add non-ABI flags used by custom
  24         HTM fast paths.
  25         (_ITM_actions): Likewise.
  26         * config/x86/target.h (HTM_CUSTOM_FASTPATH): Enable custom fastpath on
  27         x86_64.
  28         * config/x86/sjlj.S (_ITM_beginTransaction): Add custom HTM fast path.
  29         * config/posix/rwlock.h (gtm_rwlock): Update comments.  Move summary
  30         field to the start of the structure.
  31         * config/linux/rwlock.h (gtm_rwlock): Update comments.
  32         * beginend.cc (gtm_thread::begin_transaction): Add retry policy
  33         handling for custom HTM fast paths.
  34
  35 2013-08-14  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  36         Revert:
  37         2013-08-02  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  38
  39         * configure.tgt: Add -msoft-float to XCFLAGS.
  40
  41 2013-08-02  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  42
  43         * configure.tgt: Add -msoft-float to XCFLAGS.
  44
  45 2013-07-29  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  46
  47         * config/s390/target.h (htm_begin, htm_commit, htm_abort)
  48         (htm_transaction_active): Enable zEC12 instructions in the
  49         assembler.
  50         * configure.tgt: Remove -Wa,-march=zEC12 from XCFLAGS.
  51
  52 2013-07-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  53
  54         * acinclude.m4: Add htm asm check for s390.
  55         * configure.tgt: Add -mhtm and -Wa,-march=zEC12 to the options.
  56         * configure: Regenerate.
  57         * config/s390/target.h: Remove __HTM__ check.
  58         (htm_available): Call getauxval to get hwcaps and check whether
  59         HTM is available or not.
  60
  61 2013-07-15  Peter Bergner  <bergner@vnet.ibm.com>
  62
  63         * acinclude.m4 (LIBITM_CHECK_AS_HTM): New.
  64         * configure.ac: Use it.
  65         (AC_CHECK_HEADERS): Check for sys/auxv.h.
  66         (AC_CHECK_FUNCS): Check for getauxval.
  67         * config.h.in, configure: Rebuild.
  68         * configure.tgt (target_cpu): Add -mhtm to XCFLAGS.
  69         * config/powerpc/target.h: Include sys/auxv.h and htmintrin.h.
  70         (USE_HTM_FASTPATH): Define.
  71         (_TBEGIN_STARTED, _TBEGIN_INDETERMINATE, _TBEGIN_PERSISTENT,
  72         _HTM_RETRIES) New macros.
  73         (htm_abort, htm_abort_should_retry, htm_available, htm_begin, htm_init,
  74         htm_begin_success, htm_commit, htm_transaction_active): New functions.
  75
  76 2013-06-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
  77
  78         * config/s390/target.h: Include htmintrin.h.
  79         (_HTM_ITM_RETRIES): New macro definition.
  80         (htm_available, htm_init, htm_begin, htm_begin_success)
  81         (htm_commit, htm_abort, htm_abort_should_retry): New functions.
  82
  83 2013-06-20  Iain Sandoe  <iain@codesourcery.com>
  84             Cesar Philippidis  <cesar@codesourcery.com>
  85
  86         * testsuite/lib/libitm.exp: Reorder lib loads into dependency order.
  87         Do not load_gcc_lib gcc-dg.exp and add a comment as to why.
  88         * testsuite/libitm.c/c.exp: load_gcc_lib gcc-dg.exp.
  89         * testsuite/libitm.c++/c++.exp: load_gcc_lib gcc-dg.exp.
  90
  91 2013-06-20  Torvald Riegel  <triegel@redhat.com>
  92
  93         * query.cc (_ITM_inTransaction): Abort when using the HTM fastpath.
  94         (_ITM_getTransactionId): Same.
  95         * config/x86/target.h (htm_transaction_active): New.
  96
  97 2013-06-20  Torvald Riegel  <triegel@redhat.com>
  98
  99         PR libitm/57643
 100         * beginend.cc (gtm_thread::begin_transaction): Handle reentrancy in
 101         the HTM fastpath.
 102
 103 2013-03-31  Gerald Pfeifer  <gerald@pfeifer.com>
 104
 105         PR bootstrap/56714
 106         * local_atomic (__always_inline): Always define our version.
 107         (__calculate_memory_order): Mark inline.
 108         (atomic_thread_fence): Ditto.
 109         (atomic_signal_fence): Ditto.
 110         (atomic_bool::atomic_flag_test_and_set_explicit): Ditto.
 111         (atomic_bool::atomic_flag_clear_explicit): Ditto.
 112         (atomic_bool::atomic_flag_test_and_set): Ditto.
 113         (atomic_bool::atomic_flag_clear): Ditto.
 114
 115 2013-04-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
 116
 117         * config/s390/sjlj.S: New file.
 118         * config/s390/target.h: New file.
 119         * configure.tgt: Set options for S/390.
 120
 121 2013-03-23  Andi Kleen  <ak@linux.intel.com>
 122
 123         * local_atomic (__always_inline): Add.
 124         (__calculate_memory_order, atomic_thread_fence,
 125          atomic_signal_fence, test_and_set, clear, store, load,
 126          exchange, compare_exchange_weak, compare_exchange_strong,
 127          fetch_add, fetch_sub, fetch_and, fetch_or, fetch_xor):
 128         Add __always_inline to force inlining.
 129
 130 2013-02-11  Iain Sandoe  <iain@codesourcery.com>
 131             Jack Howarth  <howarth@bromo.med.uc.edu>
 132             Patrick Marlier  <patrick.marlier@gmail.com>
 133
 134         PR libitm/55693
 135         * alloc_cpp.cc: Enable function declarations on darwin.
 136         * eh_cpp.cc: Likewise.
 137
 138 2013-02-03  Richard Sandiford  <rdsandiford@googlemail.com>
 139
 140         Update copyright years.
 141
 142 2012-11-09  Torvald Riegel  <triegel@redhat.com>
 143
 144         * beginend.cc (htm_fastpath): New.
 145         (gtm_thread::begin_transaction, _ITM_commitTransaction,
 146         _ITM_commitTransactionEH): Add HTM fastpath handling.
 147         * config/linux/rwlock.h (gtm_rwlock.is_write_locked): New.
 148         * config/posix/rwlock.h (gtm_rwlock.is_write_locked): New.
 149         * config/x86/target.h (htm_available, htm_init, htm_begin_success,
 150         htm_begin, htm_commit, htm_abort, htm_abort_should_retry): New.
 151         * configure.tgt: Add -mrtm to XCFLAGS.
 152         * method-serial.cc (htm_mg, o_htm_mg, htm_dispatch, dispatch_htm): New.
 153         (gtm_thread::serialirr_mode): Add HTM fastpath handling.
 154         * libitm_i.h (htm_fastpath, dispatch_htm): Declare.
 155         * retry.cc (parse_default_method): Add HTM method parsing.
 156         (gtm_thread::number_of_threads_changed): Use HTM by default if
 157         available.
 158
 159 2012-11-04  Thomas Schwinge  <thomas@codesourcery.com>
 160
 161         * configure: Regenerate.
 162
 163 2012-10-31  Richard Henderson  <rth@redhat.com>
 164
 165         * acinclude.m4 (LIBITM_CHECK_AS_RTM): New.
 166         * configure.ac: Use it.
 167         * config.h.in, configure: Rebuild.
 168         * testsuite/Makefile.in: Rebuild.
 169
 170 2012-10-24  Torvald Riegel  <triegel@redhat.com>
 171
 172         * libitm.texi: Clarify ABI requirements for data-logging functions.
 173
 174 2012-10-24  Torvald Riegel  <triegel@redhat.com>
 175
 176         * retry.cc (gtm_thread::decide_begin_dispatch): Ask dispatch whether
 177         it requires serial mode instead of assuming that for certain
 178         dispatchs.
 179         * dispatch.h (abi_dispatch::requires_serial): New.
 180         (abi_dispatch::abi_dispatch): Adapt.
 181         * method-gl.cc (gl_wt_dispatch::gl_wt_dispatch): Adapt.
 182         * method-ml.cc (ml_wt_dispatch::ml_wt_dispatch): Same.
 183         * method-serial.cc (serialirr_dispatch::serialirr_dispatch,
 184         serial_dispatch::serial_dispatch,
 185         serialirr_onwrite_dispatch::serialirr_onwrite_dispatch): Same.
 186
 187 2012-10-02  Uros Bizjak  <ubizjak@gmail.com>
 188
 189         * config/x86/target.h (struct gtm_jmpbuf): Merge x86_64
 190         and ia32 declarations some more.
 191         * config/x86/sjlj.S (_ITM_beginTransaction): Move ret to common code.
 192
 193 2012-09-20  Jakub Jelinek  <jakub@redhat.com>
 194
 195         PR other/43620
 196         * configure.ac (AM_INIT_AUTOMAKE): Add no-dist.
 197         * configure: Regenerate.
 198         * Makefile.in: Regenerate.
 199
 200 2012-09-14  David Edelsohn  <dje.gcc@gmail.com>
 201
 202         * configure: Regenerated.
 203
 204 2012-07-31  Uros Bizjak  <ubizjak@gmail.com>
 205
 206         * config/x86/target.h (cpu_relax): Use __builtin_ia32_pause.
 207
 208 2012-05-21  Patrick Marlier  <patrick.marlier@gmail.com>
 209
 210         * eh_cpp.cc: Fix __cxa_end_catch declaration.
 211
 212 2012-05-16  H.J. Lu  <hongjiu.lu@intel.com>
 213
 214         * configure: Regenerated.
 215
 216 2012-04-04  H.J. Lu  <hongjiu.lu@intel.com>
 217
 218         PR libitm/52854
 219         * config/x86/target.h (gtm_jmpbuf): Replace long with long long
 220         for x86-64.
 221
 222 2012-04-03  Tristan Gingold  <gingold@adacore.com>
 223
 224         * configure: Regenerate.
 225
 226 2012-03-31  H.J. Lu  <hongjiu.lu@intel.com>
 227
 228         PR bootstrap/52812
 229         * configure.tgt (i[456]86-*-linux*): Handle -mx32 like -m64.
 230
 231 2012-03-16  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>
 232
 233         * testsuite/lib/libitm.exp: load fortran-modules.exp
 234
 235 2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 236
 237         * configure.tgt (*-*-irix6*): Remove.
 238
 239 2012-03-13  Torvald Riegel  <triegel@redhat.com>
 240
 241         PR libitm/52526
 242         * config/linux/rwlock.cc (GTM::gtm_rwlock::read_lock): Fix lost
 243         wake-up.
 244
 245 2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 246
 247         * configure.tgt (*-*-osf*): Remove.
 248         * configure: Regenerate.
 249
 250 2012-03-05  Torvald Riegel  <triegel@redhat.com>
 251
 252         * dispatch.h (CREATE_DISPATCH_METHODS_MEM): Don't execute
 253         memtransfer/memset if size isn't larger than zero.
 254
 255 2012-03-02  Torvald Riegel  <triegel@redhat.com>
 256
 257         * libitm.texi: Link to specification and add a usage example.
 258
 259 2012-02-24  Torvald Riegel  <triegel@redhat.com>
 260
 261         * retry.cc (GTM::gtm_thread::number_of_threads_changed): Change
 262         default dispatch for more than 1 thread to ml_wt.
 263
 264 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 265
 266         * method-gl.cc (gl_wt_dispatch::orec): Put on separate cacheline.
 267
 268 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 269
 270         * method-gl.cc (gl_wt_dispatch::rollback): Optimize memory orders.
 271
 272 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 273
 274         * method-gl.cc (gl_wt_dispatch::trycommit): Remove handling of
 275         serial mode corner cases made obsolete by prior gtm_rwlock changes.
 276         (gl_wt_dispatch.rollback): Same.
 277
 278 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 279
 280         * method-gl.cc (gl_wt_dispatch::pre_write): Optimize memory orders.
 281
 282 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 283
 284         * method-gl.cc (gl_wt_dispatch::memtransfer_static): Add missing undo
 285         for RfW src.  Optimize number of calls to gtm_thr.
 286
 287 2012-02-20  Torvald Riegel  <triegel@redhat.com>
 288
 289         * beginend.cc (GTM::gtm_thread::begin_transaction): Move serial lock
 290         acquisition to ...
 291         * retry.cc (GTM::gtm_thread::decide_begin_dispatch): ... here.
 292         (default_dispatch): Make atomic.
 293         (GTM::gtm_thread::set_default_dispatch): Access atomically.
 294         (GTM::gtm_thread::decide_retry_strategy): Access atomically and
 295         use decide_begin_dispatch() if default_dispatch might have changed.
 296         (GTM::gtm_thread::number_of_threads_changed): Initialize
 297         default_dispatch here.
 298
 299 2012-02-15  Iain Sandoe  <iains@gcc.gnu.org>
 300             Patrick Marlier  <patrick.marlier@gmail.com>
 301
 302         PR libitm/52220
 303         * alloc_cpp.cc: No dummy definitions for darwin.
 304         * eh_cpp.cc: Likewise.
 305
 306 2012-02-14  Richard Henderson  <rth@redhat.com>
 307
 308         * config/x86/target.h (GTM_longjmp): Correct the .cfi corrections.
 309
 310 2012-02-14  Uros Bizjak  <ubizjak@gmail.com>
 311
 312         * config/x86/target.h (GTM_longjmp): Correct .cfi directives.
 313
 314 2012-02-14  Torvald Riegel  <triegel@redhat.com>
 315
 316         * libitm_i.h (GTM::gtm_rwlog_entry): New.
 317         (GTM::gtm_thread): Add read and write logs.
 318         (GTM::dispatch_ml_wt): Declare.
 319         * retry.cc (parse_default_method): Support ml_wt.
 320         * method-ml.cc: New file.
 321         * Makefile.am: Add method-ml.cc.
 322         * Makefile.in: Regenerate.
 323
 324 2012-02-14  Torvald Riegel  <triegel@redhat.com>
 325
 326         * dispatch.h (GTM::abi_dispatch::supports): New.
 327         (GTM::method_group::reinit): New.
 328         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Use reinit().
 329         (GTM::gtm_thread::number_of_threads_changed): Check that the method
 330         supports the current situation.
 331
 332 2012-02-14  Torvald Riegel  <triegel@redhat.com>
 333
 334         * util.cc (GTM::xcalloc): New.
 335         * common.h (GTM::xcalloc): Declare.
 336
 337 2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>
 338
 339         * config/sparc/target.h (cpu_relax): Read from CC register.
 340         * config/sparc/sjlj.S (GTM_longjmp): Restore %fp atomically.
 341
 342 2012-02-14  Uros Bizjak  <ubizjak@gmail.com>
 343
 344         * config/x86/target.h (GTM_longjmp): Jump indirect from memory address.
 345
 346 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
 347
 348         * configure.tgt (target_cpu): Handle sparc and sparc64/sparcv9.
 349         * config/sparc/cacheline.h: New file.
 350         * config/sparc/target.h: Likewise.
 351         * config/sparc/sjlj.S: Likewise.
 352         * config/linux/sparc/futex_bits.h: Likewise.
 353
 354 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
 355
 356         * configure.ac (link_itm): Fix comment.
 357         * configure: Regenerate.
 358         * testsuite/lib/libitm.exp: Do not pass -litm for the link.
 359
 360 2012-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 361
 362         PR libitm/51822
 363         * testsuite/libitm.c++/c++.exp (lang_link_flags): Add -shared-libgcc.
 364         Correct libgomp references.
 365
 366 2012-01-24  Torvald Riegel  <triegel@redhat.com>
 367
 368         * config/linux/rwlock.cc (GTM::gtm_rwlock::write_unlock): Fix reader
 369         wake-up.
 370
 371 2012-01-24  Uros Bizjak  <ubizjak@gmail.com>
 372
 373         * config/x86/target.h (gtm_jmpbuf) [__x86_64__]: Move rip to the
 374         end of structure.
 375         * config/x86/sjlj.S (_ITM_beginTransaction) [__x86_64__]: Update
 376         offset values.  Do not copy return address.  Decrement stack
 377         by 56 bytes only.
 378         (GTM_longjump) [__x86_64__]: Update offset values.
 379
 380 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
 381
 382         PR libitm/51830
 383         * config/x86/sjlj.S (_ITM_beginTransaction) [!__x86_64__]: Load
 384         the first function argument to %eax.
 385
 386 2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 387
 388         * libitm.h (_ITM_getThreadnum): Remove.
 389         * libitm.map (_ITM_getThreadnum): Remove from LIBITM_1.0.
 390
 391 2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 392
 393         * clearcap.map: New file.
 394         * acinclude.m4 (LIBITM_CHECK_LINKER_HWCAP): New test.
 395         * configure.ac: Call it.
 396         Clear HWCAP_LDFLAGS if defaulting to -mavx.
 397         * Makefile.am (AM_LDFLAGS): Add $(HWCAP_LDFLAGS)
 398         * configure: Regenerate.
 399         * Makefile.in: Regenerate.
 400         * testsuite/Makefile.in: Regenerate.
 401
 402 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 403
 404         PR libitm/51173
 405         * testsuite/libitm.c++/static_ctor.C: Skip test, note PR, remove
 406         include, exclude options.
 407
 408 2012-01-14  Torvald Riegel  <triegel@redhat.com>
 409
 410         * local.cc (GTM::gtm_undolog::rollback): Truncate undo log after
 411         rolling back.
 412         * containers.h (GTM::vector::set_size): New.
 413
 414 2012-01-14  Torvald Riegel  <triegel@redhat.com>
 415
 416         PR libitm/51855
 417         * config/generic/tls.h (GTM::mask_stack_top): New.
 418         (GTM::mask_stack_bottom): Declare.
 419         * config/generic/tls.c (GTM::mask_stack_bottom): New.
 420         * local.cc (gtm_undolog::rollback): Filter out any updates that
 421         overlap the libitm stack.  Add current transaction as parameter.
 422         * libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
 423         * beginend.cc (GTM::gtm_thread::rollback): Adapt.
 424         * testsuite/libitm.c/stackundo.c: New test.
 425
 426 2012-01-10  Richard Henderson  <rth@redhat.com>
 427
 428         * libitm_i.h (_Unwind_DeleteException): Declare weak.
 429         * eh_cpp.cc (_Unwind_DeleteException): Define for
 430         !HAVE_ELF_STYLE_WEAKREF.
 431
 432 2012-01-08  Torvald Riegel  <triegel@redhat.com>
 433
 434         * local.cc (GTM_LB): Use GTM::gtm_undolog.
 435         (GTM::gtm_thread::drop_references_undolog): Remove.
 436         (GTM::gtm_thread::commit_undolog,
 437         GTM::gtm_thread::rollback_undolog): Move to ...
 438         * libitm_i.h (GTM::gtm_undolog): ...here. New.
 439         (GTM::gtm_undolog_entry): Remove.
 440         (GTM::gtm_thread): Adapt.
 441         * beginend.cc (GTM::gtm_thread::rollback): Adapt.
 442         (GTM::gtm_thread::trycommit): Adapt.
 443         * method-serial.cc (serial_dispatch::log): Adapt.
 444         * method-gl.cc (gl_wt_dispatch::pre_write): Adapt.
 445         (gl_wt_dispatch::store): Fix likely/unlikely.
 446         * containers.h (GTM::vector::resize): Add additional_capacity
 447         parameter and handle it.
 448         (GTM::vector::resize_noinline): New/adapt.
 449         (GTM::vector::push): New.
 450
 451 2012-01-06  Richard Henderson  <rth@redhat.com>
 452
 453         * configure.tgt: Support powerpc-linux and powerpc-darwin.
 454         * config/linux/powerpc/futex_bits.h: New file.
 455         * config/powerpc/cacheline.h: New file.
 456         * config/powerpc/sjlj.S: New file.
 457         * config/powerpc/target.h: New file.
 458         * config/generic/asmcfi.h (cfi_offset): New.
 459         (cfi_restore, cfi_undefined): New.
 460
 461 2012-01-05  Aldy Hernandez  <aldyh@redhat.com>
 462
 463         PR other/51171
 464         * testsuite/libitm.c/reentrant.c: Remove xfail.
 465         (thread): Pass x to pure().
 466         From Patrik Marlier <patrick.marlier@gmail.com>.
 467
 468 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 469
 470         * beginend.cc (GTM::gtm_thread::trycommit): Don't enforce
 471         privatization safety if already in serial mode.
 472
 473 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 474
 475         * beginend.cc (GTM::gtm_thread::restart): Add and handle
 476         finish_serial_upgrade parameter.
 477         * libitm.h (GTM::gtm_thread::restart): Adapt declaration.
 478         * config/linux/rwlock.cc (GTM::gtm_rwlock::write_lock_generic):
 479         Don't unset reader flag.
 480         (GTM::gtm_rwlock::write_upgrade_finish): New.
 481         * config/posix/rwlock.cc: Same.
 482         * config/linux/rwlock.h (GTM::gtm_rwlock::write_upgrade_finish):
 483         Declare.
 484         * config/posix/rwlock.h: Same.
 485         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Unset reader
 486         flag after commit or after rollback when restarting.
 487
 488 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 489
 490         * beginend.cc (GTM::gtm_thread::begin_transaction): Add comment.
 491         (GTM::gtm_thread::try_commit): Changed memory order.
 492         * config/linux/alpha/futex_bits.h (sys_futex0): Take atomic int
 493         as parameter.
 494         * config/linux/x86/futex_bits.h (sys_futex0): Same.
 495         * config/linux/sh/futex_bits.h (sys_futex0): Same.
 496         * config/linux/futex_bits.h (sys_futex0): Same.
 497         * config/linux/futex.cc (futex_wait, futex_wake): Same.
 498         * config/linux/futex.h (futex_wait, futex_wake): Same.
 499         * config/linux/rwlock.h (gtm_rwlock::writers,
 500         gtm_rwlock::writer_readers, gtm_rwlock::readers): Change to atomic
 501         ints.
 502         * config/linux/rwlock.cc (gtm_rwlock::read_lock,
 503         gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
 504         gtm_rwlock::write_unlock): Fix memory orders and fences.
 505         * config/posix/rwlock.cc (gtm_rwlock::read_lock,
 506         gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
 507         gtm_rwlock::write_unlock): Same.
 508         * config/linux/rwlock.h (gtm_rwlock::summary): Change to atomic int.
 509         * method-gl.cc (gl_mg::init, gl_wt_dispatch::memtransfer_static,
 510         gl_wt_dispatch::memset_static, gl_wt_dispatch::begin_or_restart):
 511         Add comments.
 512         (gl_wt_dispatch::pre_write, gl_wt_dispatch::validate,
 513         gl_wt_dispatch::load, gl_wt_dispatch::store,
 514         gl_wt_dispatch::try_commit, gl_wt_dispatch::rollback): Fix memory
 515         orders and fences.  Add comments.
 516
 517 2011-12-21  Jakub Jelinek  <jakub@redhat.com>
 518
 519         * Makefile.am (AM_CXXFLAGS): Put $(XCFLAGS) first.
 520         * Makefile.in: Regenerated.
 521
 522 2011-12-17  Kaz Kojima  <kkojima@gcc.gnu.org>
 523
 524         * configure.tgt: Add sh* case.
 525         * config/sh/target.h: New file.
 526         * config/sh/sjlj.S: New file.
 527         * config/linux/sh/futex_bits.h: New file.
 528
 529 2011-12-14  Richard Henderson  <rth@redhat.com>
 530
 531         * config/arm/hwcap.h, config/arm/hwcap.cc: New files.
 532         * config/arm/sjlj.S, config/arm/target.h: New files.
 533         * config/generic/asmcfi.h (cfi_adjust_cfa_offset): New.
 534         (cfi_rel_offset): New.
 535         * config/linux/futex_bits.h: New file.
 536         * config/linux/futex.cc: Include futex_bits.h here...
 537         * config/linux/futex.h: ... not here.
 538         * Makefile.am (libitm_la_SOURCES) <ARCH_ARM>: Add hwcap.cc.
 539         * configure.ac (ARCH_AM): New conditional.
 540         * Makefile.in, configure: Rebuild.
 541         * configure.tgt: Handle ARM.
 542
 543 2011-12-13  Richard Henderson  <rth@redhat.com>
 544
 545         * config/posix/rwlock.cc (gtm_rwlock::write_lock_generic): Fix
 546         signed/unsigned comparison werror.
 547
 548         * local_atomic: New file.
 549         * libitm_i.h: Include it.
 550         (gtm_thread::shared_state): Use atomic template.
 551         * beginend.cc (GTM::gtm_clock): Use atomic template.
 552         (global_tid): Use atomic template if 64-bit atomics available.
 553         (gtm_thread::gtm_thread): Update shared_state access.
 554         (gtm_thread::trycommit): Likewise.
 555         (choose_code_path): Update global_tid access.
 556         * method-gl.cc (gl_mg::orec): Use atomic template.  Update all users.
 557         * stmlock.h (GTM::gtm_clock): Use atomic template.
 558         (gtm_get_clock, gtm_inc_clock): Update accesses.
 559         * config/linux/rwlock.cc (gtm_rwlock::read_lock): Remove
 560         redundant __sync_synchronize after atomic shared_state access.
 561         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Likewise.
 562         (gtm_rwlock::write_lock_generic): Likewise.
 563         (gtm_rwlock::read_unlock): Likewise.
 564         * config/alpha/target.h (atomic_read_barrier): Remove.
 565         (atomic_write_barrier): Remove.
 566         * config/x86/target.h (atomic_read_barrier): Remove.
 567         (atomic_write_barrier): Remove.
 568
 569 2011-11-30  Richard Henderson  <rth@redhat.com>
 570
 571         * libitm_i.h (GTM_longjmp): Swap first and second arguments.
 572         * beginend.c (_ITM_abortTransaction): Update to match.
 573         (GTM::gtm_thread::restart): Likewise.
 574         * config/alpha/sjlj.S (GTM_longjmp): Likewise.
 575         * config/x86/sjlj.S (GTM_longjmp): Likewise.
 576
 577 2011-11-23  Iain Sandoe  <iains@gcc.gnu.org>
 578
 579         * Makefile.am (libitm_la_LDFLAGS): Remove "-no-undefined".
 580         * Makefile.in: Regenerate.
 581
 582 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 583
 584         * configure.ac: Use GCC_CHECK_ELF_STYLE_WEAKREF.
 585         * alloc_cpp.cc: Generate dummy functions if we don't
 586         HAVE_ELF_STYLE_WEAKREF.
 587         * eh_cpp.cc: Likewise.
 588         * configure: Regenerate.
 589         * aclocal.m4:  Likewise.
 590         * config.h.in: Likewise.
 591         * Makefile.in: Likewise.
 592         * testsuite/Makefile.in: Likewise.
 593
 594 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 595
 596         * config/x86/sjlj.S (CONCAT1, CONCAT2, SYM): Respond to
 597         __USER_LABEL_PREFIX__ for targets that use it.
 598         (TYPE, SIZE, HIDDEN): New macros to assist on non-elf targets.
 599         (_ITM_beginTransaction): Use SYM, TYPE, SIZE macros to assist
 600         in portability to non-elf targets.
 601         (GTM_longjmp): Likewise.
 602         * libitm_i.h (begin_transaction): Apply __USER_LABEL_PREFIX__
 603         where required.
 604
 605 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 606
 607         * testsuite/libitm.c/memcpy-1.c: Allow for MAP_ANON spelling.
 608         * testsuite/libitm.c/memset-1.c: Likewise.
 609
 610 2011-11-21  Andreas Tobler  <andreast@fgznet.ch>
 611
 612         * configure: Regenerate.
 613
 614 2011-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 615
 616         * acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Handle gold.
 617         (LIBITM_ENABLE_SYMVERS): Handle sun style.
 618         * Makefile.am: Handle sun style versioning.
 619         (libitm_la_LINK): Add $(libitm_la_LDFLAGS).
 620         * configure: Regenerate.
 621         * Makefile.in: Regenerate.
 622
 623 2011-11-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 624
 625         * config/generic/asmcfi.h: Fix comment.
 626         * config/x86/sjlj.S (_ITM_beginTransaction): Provide ELF PIC code
 627         sequence without .hidden support, error for non-ELF targets.
 628         (GTM_longjmp) [__ELF__]: Only use .hidden if
 629         HAVE_ATTRIBUTE_VISIBILITY.
 630
 631 2011-11-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 632
 633         * alloc_cpp.cc [__osf__] (_ZnwX, _ZdlPv, _ZnaX, _ZdaPv,
 634         _ZnwXRKSt9nothrow_t, _ZdlPvRKSt9nothrow_t, _ZdaPvRKSt9nothrow_t):
 635         Dummy functions.
 636         * eh_cpp.cc [__osf__] (__cxa_allocate_exception, __cxa_throw,
 637         __cxa_begin_catch, __cxa_end_catch, __cxa_tm_cleanup): Likewise.
 638
 639 2011-11-16  Uros Bizjak  <ubizjak@gmail.com>
 640
 641         PR bootstrap/51098
 642         * acinclude.m4 (LIBITM_CHECK_AS_AVX): Fix target selector.
 643         * configure: Regenerate.
 644
 645 2011-11-14  H.J. Lu  <hongjiu.lu@intel.com>
 646
 647         * testsuite/lib/libitm.exp: Check ia32 instead of ilp32.
 648
 649 2011-11-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 650
 651         * config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
 652         .hidden.
 653         (.note.GNU-stack): Only use if __linux__.
 654         * alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
 655         * testsuite/libitm.c/notx.c: Use dg-options "-pthread".
 656         * testsuite/libitm.c/reentrant.c: Likewise.
 657         * testsuite/libitm.c/simple-2.c: Likewise.
 658         * testsuite/libitm.c/txrelease.c: Likewise.
 659         * testsuite/libitm.c++/static_ctor.C: Likewise.
 660
 661 2011-11-10  Richard Henderson  <rth@redhat.com>
 662
 663         * config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
 664         * Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
 665         * configure.ac (ARCH_X86_AVX): New conditional.
 666         * Makefile.in, configure: Rebuild.
 667
 668 2011-11-09  Richard Henderson  <rth@redhat.com>
 669
 670         * acinclude.m4 (LIBITM_CHECK_AS_AVX): New.
 671         * configure.ac: Use it.
 672         * config.h.in, configure: Rebuild.
 673         * config/x86/x86_avx.cc: Handle !HAVE_AS_AVX.
 674
 675 2011-11-09  Richard Henderson  <rth@redhat.com>
 676
 677         * barrier.tpl, memcpy.cc, memset.cc, method-wbetl.cc: Remove file.
 678         * config/alpha/unaligned.h: Remove file.
 679         * config/generic/unaligned.h: Remove file.
 680         * config/x86/unaligned.h: Remove file.
 681         * config/generic/cachepage.h: Remove file.
 682         * config/posix/cachepage.cc: Remove file.
 683         * config/generic/cacheline.cc: Remove file.
 684         * config/x86/cacheline.cc: Remove file.
 685         * config/generic/cacheline.h (gtm_cacheline): Remove the
 686         store_mask, copy_mask, copy_mask_wb methods.
 687         * config/x86/cacheline.h: Likewise.
 688         * config/alpha/cacheline.h: Fall back to generic after setting size.
 689         * config/generic/tls.cc (gtm_mask_stack): Remove.
 690         * config/x86/x86_avx.cc (GTM_vpperm_shift): Remove.
 691         (GTM_vpalignr_table): Remove.
 692         * config/x86/x86_sse.cc (GTM_palignr_table): Remove.
 693         (GTM_pshift_table): Remove.
 694         * config/libitm_i.h: Don't include cachepage.h.
 695         * Makefile.am (libitm_la_SOURCES): Remove cacheline.cc, cachepage.cc
 696         * Makefile.in, testsuite/Makefile.in: Rebuild.
 697
 698 2011-11-09  Richard Henderson  <rth@redhat.com>
 699
 700         * config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
 701         to emit branch prediction hint.
 702
 703         * config/x86/sjlj.S: Protect elf directives with __ELF__.
 704         Protect .note.GNU-stack with __linux__.
 705
 706         * configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
 707         * configure, aclocal.m4, config.h.in: Rebuild.
 708         * config/generic/asmcfi.h: New file.
 709         * config/x86/sjlj.S: Use it.
 710
 711 2011-11-08  Richard Henderson  <rth@redhat.com>
 712
 713         * local.cc (_ITM_LB): Use a normal call, not a function alias.
 714
 715 2011-11-08  Richard Henderson  <rth@redhat.com>
 716
 717         * configure.tgt: Test correct directory for supported cpus.
 718
 719         * configure.ac: Exit if unsupported.
 720         * configure: Rebuild.
 721         * configure.tgt: Delete boilerplate from libgomp for unsupported
 722         targets.  Set UNSUPPORTED for unsupported targets.
 723
 724 2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 725
 726         * configure.tgt: Handle i386 like i[456]86.
 727         * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
 728         take address.
 729         * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
 730         !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.
 731
 732 2011-11-05  Aldy Hernandez  <aldyh@redhat.com>
 733
 734         * method-wbetl.cc: Update copyright notice.
 735         * aatree.cc: Same.
 736         * util.cc: Same.
 737         * libitm.h: Same.
 738         * memset.cc: Same.
 739         * eh_cpp.cc: Same.
 740         * barrier.tpl: Same.
 741         * useraction.cc: Same.
 742         * stmlock.h: Same.
 743         * memcpy.cc: Same.
 744         * common.h: Same.
 745         * config/generic/tls.cc: Same.
 746         * config/generic/cacheline.h: Same.
 747         * config/generic/cachepage.h: Same.
 748         * config/generic/cacheline.cc: Same.
 749         * config/generic/unaligned.h: Same.
 750         * config/x86/cacheline.h: Same.
 751         * config/x86/cacheline.cc: Same.
 752         * config/x86/unaligned.h: Same.
 753         * config/alpha/cacheline.h: Same.
 754         * config/alpha/unaligned.h: Same.
 755         * config/alpha/sjlj.S: Same.
 756         * config/posix/cachepage.cc: Same.
 757         * config/linux/futex.h: Same.
 758         * config/linux/alpha/futex_bits.h: Same.
 759
 760 2011-11-04  Torvald Riegel  <triegel@redhat.com>
 761
 762         * libitm.texi: No cover text and invariant sections.
 763
 764 2011-11-03  Richard Henderson  <rth@redhat.com>
 765
 766         * local_type_traits: New file.
 767         * libitm_i.h: Use it.  Use C headers, not C++ wrappers.
 768
 769 2011-11-03  Richard Henderson  <rth@redhat.com>
 770
 771         * configure.ac: Don't test for gfortran.
 772         * configure: Rebuild.
 773
 774         * testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
 775         * testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.
 776
 777 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 778
 779         * testsuite/libitm.c/memcpy-1.c: Add copyright notice.
 780         * testsuite/libitm.c/memset-1.c: Same.
 781         * testsuite/libitm.c/c.exp: Same.
 782         * testsuite/lib/libitm-dg.exp: Same.
 783         * testsuite/lib/libitm.exp: Same.
 784         * testsuite/libitm.c++/c++.exp: Same.
 785
 786 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 787
 788         * testsuite/config/default.exp: Update copyright date.
 789         * configure.ac: Add copyright info.
 790         * configure.tgt: Same.
 791
 792 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 793
 794         * testsuite/libitm.c/reentrant.c: XFAIL.
 795         * testsuite/libitm.c++/static_ctor.C: XFAIL.
 796
 797 2011-10-29  Torvald Riegel  <triegel@redhat.com>
 798
 799         * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
 800         handle aborts.
 801         (_ITM_abortTransaction): Handle aborts of outer transactions.
 802         * libitm_i.h: Same.
 803         * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
 804         * libitm.texi: Document aborts of outer transactions.
 805         * testsuite/libitm.c/cancel.c: New file.
 806
 807 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 808
 809         * testsuite/*: Change __transaction to __transaction_atomic or
 810         __transaction_relaxed.
 811
 812 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 813
 814         * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
 815         (gtm_thr): Same.
 816
 817 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 818
 819         * libitm_i.h: Add gl_wt dispatch.
 820         * retry.cc (parse_default_method): Same.
 821         * method-gl.cc: New file.
 822         * Makefile.am: Use method-gl.cc.
 823         * Makefile.in: Rebuild.
 824
 825 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 826
 827         * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
 828         safety if requested by a TM method.
 829         * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
 830         privatization safety.
 831         * method-serial.cc: Same.
 832
 833 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 834
 835         * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
 836         (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
 837         undolog-related member functions from *_local to *_undolog.
 838         * local.cc (gtm_thread::commit_undolog): Same.
 839         * beginend.cc (GTM::gtm_thread::trycommit): Same.
 840         (GTM::gtm_thread::rollback): Roll back undolog before
 841         dispatch-specific rollback.
 842
 843 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 844
 845         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
 846         re-initialization of the current method group.
 847         * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.
 848
 849 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 850
 851         * alloc.cc (commit_allocations_2): Do not free transaction-local
 852         memory when committing a nested transaction.
 853
 854 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 855
 856         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
 857         serial-irrevocable dispatch, not serial.
 858
 859 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 860
 861         * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
 862         declarations.
 863         * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
 864         * method-serial.cc: Implement begin_or_restart().
 865         * beginend.cc (GTM::gtm_thread::begin_transaction): Call
 866         dispatch-specific begin_or_restart().
 867         (GTM::gtm_thread::restart): Same.
 868
 869 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 870
 871         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
 872         restarting without switching to serial mode.
 873         (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
 874         transaction state. Choose closed-nesting alternative if available.
 875         (GTM::gtm_thread::set_default_dispatch): New.
 876         (parse_default_method): New.
 877         (GTM::gtm_thread::number_of_threads_changed): New.
 878         * method-serial.cc (GTM::serial_mg): New method group class.
 879         (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
 880         fini.
 881         (GTM::serial_dispatch): Same.
 882         (GTM::serialirr_onwrite_dispatch): Same.
 883         (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
 884         * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
 885         registered threads.
 886         (GTM::gtm_thread::gtm_thread): Same.
 887         (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
 888         (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
 889         (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
 890         choose dispatch but set state according to dispatch here.
 891         * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
 892         (GTM::method_group): New class.
 893         (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
 894         * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
 895         * libitm.texi: Document TM methods, method groups, method life cycle.
 896         Rename method sets to method groups.
 897
 898 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 899
 900         * config/x86/tls.h: Moved to ...
 901         * config/linux/x86/tls.h: ... here.
 902
 903 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 904
 905         * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
 906         Add X32 support.
 907         * config/x86/sjlj.S: Same.
 908
 909 2011-08-19  Torvald Riegel  <triegel@redhat.com>
 910
 911         * config/linux/rwlock.h: New file.
 912         * config/linux/rwlock.c: New file.
 913         * configure.ac: Reenable futex support (undo SVN rev 157758).
 914         * Makefile.am: Same.
 915         * configure.tgt: Same.
 916         * config/linux/alpha/futex_bits.h: Same.
 917         * config/linux/futex.h: Same. Return number of woken processes.
 918         * config/linux/futex.cc: Same.
 919         (futex_wait): Remove spinning.
 920         * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
 921         Use __x86_64__ instead of __LP64__.
 922         * aclocal.m4: Include generic futex checks.
 923         * configure: Rebuild.
 924         * Makefile.in: Rebuild.
 925         * testsuite/Makefile.in: Rebuild.
 926         * beginend.cc: Include pthread.h.
 927         * config/posix/cachepage.cc: Same.
 928
 929 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 930
 931         * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 932         (abi_disp, set_abi_disp): Move to tx's TLS slot.
 933         (set_gtm_thr): New.
 934         * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 935         (set_gtm_thr): New.
 936         (GTM::gtm_thread::thread_num): Removed.
 937         (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
 938         * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
 939         tx-to-thread renaming.
 940         * beginend.cc: Adapted to tx-to-thread renaming.
 941         (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
 942         (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
 943         * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
 944         gtm_transaction to gtm_thread.
 945         (_ITM_getThreadnum): Removed. Not supported anymore.
 946         * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
 947         * libitm.texi: Documented that _ITM_getThreadnum is not supported.
 948         * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
 949         gtm_tx-to-gtm_thr renaming if necessary.
 950         * eh_cpp.cc: Same.
 951         * local.cc: Same.
 952         * retry.cc: Same.
 953         * clone.cc: Same.
 954         * alloc.cc: Same.
 955         * alloc_c.cc: Same.
 956         * alloc_cpp.cc: Same.
 957         * method-serial.cc: Same.
 958         * config/generic/tls.cc: Same.
 959         * config/posix/rwlock.h (gtm_rwlock): Same.
 960         * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.
 961
 962 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 963
 964         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
 965         implementation.
 966         (gtm_rwlock::read_unlock): Same.
 967         (gtm_rwlock::write_lock_generic): New. Generalized from ...
 968         (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
 969         * libitm_i.h (GTM::gtm_transaction): Added shared_state.
 970         * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
 971         w_upgrade. Replaced by per-transaction flags (in shared_state).
 972         Added c_confirmed_writers.
 973         (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
 974         GTM::gtm_rwlock::write_upgrade): Add tx parameter.
 975         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
 976         * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
 977         * beginend.cc (GTM::gtm_transaction::begin_transaction,
 978         _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
 979         * libitm.texi: Document locking conventions and implementations in
 980         libitm.
 981
 982 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 983
 984         * libitm_i.h (next_tx): Add list of all threads' transaction.
 985         * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
 986         transaction with list of transactions and ...
 987         (thread_exit_handler): ... deregister here.
 988         * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
 989         * config/x86/target.h: Same.
 990
 991 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 992
 993         * testsuite/libitm.c++/static_ctor.C: New file.
 994
 995 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 996
 997         * testsuite/libitm.c/reentrant.c: New file.
 998
 999 2011-08-12  Torvald Riegel  <triegel@redhat.com>
1000
1001         * config/generic/tls.h: Remove the free list for transactions and ...
1002         * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
1003         (GTM::gtm_transaction::operator delete): ... and release here.
1004         (thread_exit_handler): New. Delete tx when thread terminates.
1005         (thread_exit_init): New.
1006         (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
1007         * testsuite/libitm.c/txrelease.c: New file.
1008
1009 2011-08-12  Torvald Riegel  <triegel@redhat.com>
1010
1011         * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
1012         * testsuite/libitm.c/notx.c: New file.
1013
1014 2011-08-12  Torvald Riegel  <triegel@redhat.com>
1015
1016         * config/generic/tls.h (gtm_thread): Move local_tid from here ...
1017         * libitm_i.h (local_tid): ... to here.
1018         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
1019         (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.
1020
1021 2011-08-12  Torvald Riegel  <triegel@redhat.com>
1022
1023         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
1024         serialirr_onwrite_dispatch as new default for now.
1025         * method-serial.cc (serialirr_onwrite_dispatch): New.
1026         (GTM::dispatch_serialirr_onwrite): New.
1027         * libitm_i.h: Same.
1028
1029 2011-08-12  Torvald Riegel  <triegel@redhat.com>
1030
1031         * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
1032         * query.cc (_ITM_getTransactionId): There is no active transaction if
1033         the current nesting level is zero.
1034
1035 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1036
1037         * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
1038         rollback.
1039
1040 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1041
1042         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
1043         transaction properties from the caller instead of from the
1044         transaction object.
1045         * libitm_i.h: Same.
1046         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
1047
1048 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1049
1050         * local.cc (gtm_transaction::rollback_local): Support closed nesting.
1051         * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
1052         * dispatch.h: Same.
1053         * method-serial.cc: Same.
1054         * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
1055         flat nesting as default, and closed nesting on demand.
1056         (GTM::gtm_transaction::rollback): Same.
1057         (_ITM_abortTransaction): Same.
1058         (GTM::gtm_transaction::restart): Same.
1059         (GTM::gtm_transaction::trycommit): Same.
1060         (GTM::gtm_transaction::trycommit_and_finalize): Removed.
1061         (choose_code_path): New.
1062         (GTM::gtm_transaction_cp::save): New.
1063         (GTM::gtm_transaction_cp::commit): New.
1064         * query.cc (_ITM_inTransaction): Support flat nesting.
1065         * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
1066         (GTM::gtm_transaction): Support flat and closed nesting.
1067         * alloc.cc (commit_allocations_2): New.
1068         (commit_cb_data): New helper struct.
1069         (GTM::gtm_transaction::commit_allocations): Handle nested
1070         commits/rollbacks.
1071         * libitm.texi: Update user action section, add description of nesting.
1072
1073 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1074
1075         * libitm_i.h: Add closed nesting as restart reason.
1076         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
1077
1078 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1079
1080         * useraction.cc: Use vector instead of list to store actions.
1081         Also support partial rollbacks for closed nesting.
1082         * libitm_i.h (GTM::gtm_transaction::user_action): Same.
1083         * beginend.cc: Same.
1084
1085 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1086
1087         * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
1088         closed_nesting flags, as well as a closed nesting alternative.
1089         * method-serial.cc: Same.
1090         (serial_dispatch): Renamed to serialirr_dispatch.
1091         (GTM::dispatch_serialirr): Same.
1092         (serial_dispatch_ul): Renamed to serial_dispatch.
1093         (GTM::dispatch_serial): Same.
1094
1095 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1096
1097         * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.
1098
1099 2011-07-28  Torvald Riegel  <triegel@redhat.com>
1100
1101         * aatree.h (aa_tree::remove): New.
1102         (aa_tree::operator new): Add placement new.
1103
1104 2011-07-02  Torvald Riegel  <triegel@redhat.com>
1105
1106         * containers.h: New file.
1107         * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
1108         * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
1109         * common.h: ... to here.
1110         (local_undo): Use GTM::vector for gtm_transaction::local_undo.
1111         * local.cc: Same.
1112
1113 2011-06-30  Torvald Riegel  <triegel@redhat.com>
1114
1115         * libitm_i.h (STATE_ABORTING): Remove.
1116         * beginend.cc (_ITM_abortTransaction): Same.
1117         (GTM::gtm_transaction::trycommit_and_finalize): Same.
1118         * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
1119         (_ITM_rollbackTransaction): Remove.
1120         * beginend.cc: Same.
1121         * libitm.map: Same.
1122         * libitm.texi: Document these ABI changes.
1123
1124 2011-06-30  Torvald Riegel  <triegel@redhat.com>
1125
1126         * libitm.texi: New file.
1127         * Makefile.am: Add libitm.texi.
1128         * Makefile.in: Rebuild.
1129
1130 2011-06-30  Torvald Riegel  <triegel@redhat.com>
1131
1132         * libitm_i.h: Move parts to common.h and dispatch.h.
1133         * common.h: New file.
1134         * dispatch.h: New file, new dispatch class.
1135         Rename GTM::abi_dispatch::lock_type to ls_modifier.
1136         RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
1137         * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
1138         decision to retry.cc.
1139         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
1140         only.
1141         (GTM::gtm_transaction::decide_begin_dispatch): Same.
1142         * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
1143         logging.
1144         * barrier.cc: Use new barriers definitions.
1145         (abi_dispatch::memmove_overlap_check): New.
1146         * config/x86/x86_sse.cc: Same.
1147         * config/x86/x86_avx.cc: Same.
1148         * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
1149         memcpy.cc.
1150         * Makefile.in: Rebuild.
1151         * method-readonly.cc: Remove.
1152         * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
1153         Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.
1154
1155 2011-06-30  Torvald Riegel  <triegel@redhat.com>
1156
1157         * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
1158         * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
1159         * testsuite/libitm.c/dropref-2.c: Same.
1160         * testsuite/libitm.c/dropref.c: Same.
1161
1162 2011-06-30  Torvald Riegel  <triegel@redhat.com>
1163
1164         * config/generic/tls.h (gtm_disp): Rename to abi_disp.
1165         * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
1166         * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
1167         * alloc_c.cc: Same.
1168         * barrier.tpl: Same.
1169         * beginend.c: Same.
1170         * config/generic/tls.h: Same.
1171         * config/x86/tls.h: Same.
1172         * libitm_i.h: Same.
1173         * memcpy.cc: Same.
1174         * memset.cc: Same.
1175         * method-readonly.cc: Same.
1176         * method-serial.cc: Same.
1177         * method-wbetl.cc: Same.
1178         * retry.cc: Same.
1179
1180 2011-03-03  Richard Henderson  <rth@redhat.com>
1181
1182         * config/posix/rwlock.cc (write_upgrade): Add missing case.
1183         From Patrik Marlier <patrick.marlier@unine.ch>.
1184
1185 2011-02-03  Richard Henderson  <rth@redhat.com>
1186
1187         * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
1188         * configure.ac: Use it.
1189         * configure, config.h.in: Rebuild.
1190         * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
1191         (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
1192         _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
1193         * libitm.map: Use wildcards to match size_t mangling.
1194
1195 2010-12-14  Richard Henderson  <rth@redhat.com>
1196
1197         * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
1198         blocks of TIDs per thread.
1199         * config/generic/tls.h (struct gtm_thread): Add local_tid member.
1200         (setup_gtm_thr): Return the thread structure.
1201         * config/x86/tls.h (setup_gtm_thr): Likewise.
1202
1203 2010-12-14  Richard Henderson  <rth@redhat.com>
1204
1205         * clone.cc (table_lock): Remove.
1206         (find_clone): Don't take it.
1207         (ExcludeTransaction): New helper class.
1208         (_ITM_registerTMCloneTable): Use it.
1209         (_ITM_deregisterTMCloneTable): Likewise.
1210
1211 2010-12-14  Richard Henderson  <rth@redhat.com>
1212
1213         * config/x86/tls.h: New file.
1214
1215 2010-07-15  Richard Henderson  <rth@redhat.com>
1216
1217         * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
1218         * Makefile.in: Rebuild.
1219
1220 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
1221
1222         * method-wbetl.cc (trydropreference): Fix source line.
1223
1224 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
1225
1226         * libitm.h: Add comment.
1227         * libitm_i.h (begin_transaction): Add ITM_REGPARM.
1228
1229 2010-07-07  Aldy Hernandez  <aldyh@redhat.com>
1230
1231         * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
1232         * beginend.cc (begin_transaction): If 64-bit sync builtins are not
1233         available, use pthread mutexes.
1234         * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
1235         * config.h.in: Regenerate.
1236         * configure: Regenerate.
1237
1238 2010-07-06  Aldy Hernandez  <aldyh@redhat.com>
1239
1240         * libitm.h (ITM_PURE): Define.
1241         Declare _ITM_malloc, _ITM_calloc, and _ITM_free.
1242
1243 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
1244
1245         * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
1246         (validate): Add comment.
1247         (trydropreference): New.
1248         * method-readonly.cc (class readonly_dispatch): Add
1249         trydropreference.
1250         * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
1251         Call trydropreference().
1252         * libitm.h (_ITM_dropReferences): Remove const attribute.
1253         * method-serial.cc (class serial_dispatch): Add trydropreference.
1254         * libitm_i.h (struct gtm_dispatch): Add trydropreference.
1255
1256 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
1257
1258         * memcpy.cc (do_memcpy): Comment.
1259
1260 2010-06-25  Aldy Hernandez  <aldyh@redhat.com>
1261
1262         * barrier.tpl: Add comments throughout.
1263
1264 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
1265
1266         * method-wbetl.cc (struct w_entry): Add comments.
1267         (trycommit): Same.
1268         (rollback): Same.
1269
1270 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
1271
1272         * alloc_c.cc (_ITM_dropReferences): New.
1273         * libitm.map (_ITM_dropReferences): Add.
1274         * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
1275         * libitm_i.h (struct gtm_transaction): Declare
1276         drop_references_allocations and drop_references_local.
1277         * local.cc (rollback_local): Ignore memory when applicable.
1278         (drop_references_local): New.
1279
1280 2010-06-23  Richard Henderson  <rth@redhat.com>
1281
1282         * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
1283         memset.cc, method-serial.cc: Revert the 2010-06-16 change.
1284         * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
1285         * config/alpha/target.h: Likewise.
1286         * config/generic/tls.cc (gtm_mask_stack): Use it.
1287
1288 2010-06-23  Richard Henderson  <rth@redhat.com>
1289
1290         * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
1291         a mutex instead of trying a lock-free compare-and-swap on the list.
1292         (gtm_cacheline_page::operator delete): Likewise.
1293
1294 2010-06-16  Richard Henderson  <rth@redhat.com>
1295
1296         * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
1297         that overlap the libitm stack.
1298         * barrier.tpl: Mark incoming stack.
1299         * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
1300         _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
1301         * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
1302         * memcpy.cc, memset.cc: Likewise.
1303         * method-serial.cc (_ITM_changeTransactionMode): Likewise.
1304         * config/generic/tls.h (gtm_thread): Add stack_top member.
1305         (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
1306         * libitm_i.h (gtm_mask_stack): Declare.
1307         * config/generic/tls.cc: New file.
1308         * Makefile.am (libitm_la_SOURCES): Add it.
1309         (AM_CXXFLAGS): Turn off exceptions.
1310         * Makefile.in: Rebuild.
1311
1312 2010-06-16  Richard Henderson  <rth@redhat.com>
1313
1314         * alloc.cc (struct gtm_alloc_action): Move definition ...
1315         * libitm_i.h: ... here.
1316         (class gtm_transaction): Declare new and delete.
1317         * beginend.cc (alloc_tx): Reformulate as operator new.
1318         (free_tx): Reformulate as operator delete.
1319         * config/generic/tls.h (gtm_thread): Change free_tx member to void *.
1320
1321 2010-06-11  Richard Henderson  <rth@redhat.com>
1322
1323         * clone.cc (clone_entry_compare): Fix typo.
1324         From Patrik Marlier <patrick.marlier@unine.ch>.
1325
1326 2010-05-13  Richard Henderson  <rth@redhat.com>
1327
1328         * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
1329         in extern "C".
1330
1331 2010-05-07  Aldy Hernandez  <aldyh@redhat.com>
1332
1333         * libitm_i.h (struct gtm_transaction): Remove
1334         get_allocation_size.
1335         (record_allocation): Remove size parameter.
1336         * libitm.map (_ITM_realloc): Remove.
1337         * alloc_c.cc (_ITM_realloc): Remove.
1338         (_ITM_malloc): Remove size argument to record_allocation.
1339         (_ITM_calloc): Same.
1340         * alloc_cpp.cc (_ZGTtnwm): Same.
1341         (_ZGTtnwmRKSt9nothrow_t): Same.
1342         (_ZGTtnam): Same.
1343         (_ZGTtnamRKSt9nothrow_t): Same.
1344         * alloc.cc (struct gtm_alloc_action): Remove size.
1345         (get_allocation_size): Remove.
1346         (commit_allocations): Add comment.
1347         (record_allocation): Remove size parameter.
1348         (forget_allocation): Remove set of size.
1349
1350 2010-04-19  Aldy Hernandez  <aldyh@redhat.com>
1351
1352         * Makefile.am (abi_version): New.
1353         (AM_CXXFLAGS): Pass abi_version.
1354         * Makefile.in: Regenerate.
1355         * config/x86/unaligned.h: Remove always_inline kludge for vectors.
1356
1357 2010-04-06  Aldy Hernandez  <aldyh@redhat.com>
1358
1359         * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
1360         _ITM_getTMCloneOrIrrevokable.
1361         * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
1362         * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.
1363
1364 2010-03-26  Aldy Hernandez  <aldyh@redhat.com>
1365
1366         * configure.ac: Remove Linux futex support.
1367         * configure.tgt (config_path): Same.
1368         * Makefile.am: Same.
1369         * config/linux: Remove entire directory.
1370         * configure: Rebuild.
1371         * Makefile.in: Rebuild.
1372         * testsuite/Makefile.in: Rebuild.
1373
1374 2010-03-09  Aldy Hernandez  <aldyh@redhat.com>
1375
1376         * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
1377         switching to serial mode.
1378         * beginend.cc (trycommit_and_finalize): Unlock serial_lock.
1379
1380 2010-03-03  Aldy Hernandez  <aldyh@redhat.com>
1381
1382         * configure.tgt: Add emacs -*- tags.
1383         * barrier.tpl: Same.
1384
1385 2010-02-23  Aldy Hernandez  <aldyh@redhat.com>
1386
1387         * Makefile.am: Rename serial.cc to method-serial.cc.
1388         * Makefile.in: Regenerate with automake 1.11.1.
1389         * testsuite/Makefile.in: Same.
1390         * aclocal.m4: Regenerate with aclocal 1.11.1.
1391         * method-serial.cc: Rename from serial.cc.
1392         * libitm_i.h (struct gtm_transaction): Update comment on
1393         serialirr_mode.
1394
1395 2010-02-22  Aldy Hernandez  <aldyh@redhat.com>
1396
1397         * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
1398         * config/linux/rwlock.h (class gtm_rwlock): Add comments.
1399
1400 2010-02-11  Aldy Hernandez  <aldyh@redhat.com>
1401
1402         * configure: Rebuild.
1403
1404 2009-11-12  Richard Henderson  <rth@redhat.com>
1405
1406         * Rewrite everything in C++.
1407
1408 2009-11-03  Richard Henderson  <rth@redhat.com>
1409
1410         * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
1411         * Makefile.am (libitm_la_SOURCES): Add them.
1412         * configure.ac (ARCH_X86): New conditional.
1413         * Makefile.in, configure: Rebuild.
1414         * configure.tgt: Set up ARCH; do cflags setup at the same time.
1415         Move futex setup into "other system configury" case.
1416         * local.c (rollback_local): Merge into ...
1417         (GTM_rollback_local): ... here.
1418         (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
1419         (_ITM_LB): Define as an alias to GTM_LB.
1420
1421 2009-11-03  Richard Henderson  <rth@redhat.com>
1422
1423         * method-readonly.c: New file.
1424         * Makefile.am (libitm_la_SOURCES): Add it.
1425         * Makefile.in: Rebuild.
1426         * beginend.c (gtm_stmlock_array, gtm_clock): New.
1427         (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
1428         * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
1429         (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
1430         gtm_stmlock_set_owned, gtm_stmlock_get_addr,
1431         gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
1432         gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
1433         gtm_get_clock, gtm_inc_clock): New.
1434         * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
1435         LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
1436         LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
1437         locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
1438         replace uses with new libitm_i.h symbols.
1439         (dispatch_wbetl): Rename from wbetl_dispatch.
1440         * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
1441         away from dispatch_readonly; abort if the beginTransaction call
1442         asserted that the transaction was readonly.
1443
1444 2009-11-03  Richard Henderson  <rth@redhat.com>
1445
1446         * memset.c: New file.
1447         * Makefile.am (libitm_la_SOURCES): Add it.
1448         * Makefile.in: Rebuild.
1449         * testsuite/libitm.c/memset-1.c: New.
1450
1451 2009-11-03  Richard Henderson  <rth@redhat.com>
1452
1453         * dispatch.c: Remove file.
1454         * useraction.c (struct gtm_user_action): Move from libitm.h.
1455         * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
1456         (serial_memset, serial_memmove, serial_memcpy): Remove.
1457         (serial_W*, serial_R*): Remove.
1458         (serial_dispatch): Update to match.
1459         * configure.ac: Move Werror down below configure checks.  Don't
1460         check for sys/loadavg.h, do check for malloc.h.  Don't check for
1461         getloadavg and clock_gettime; do check for memalign, posix_memalign.
1462         Use GCC_AC_FUNC_MMAP_BLACKLIST
1463         * libitm.h: Split out all internal items to...
1464         * libitm_i.h: ... here.  New file.
1465         * copymask.c: New file.
1466         * local.c (struct gtm_local_undo): Move from libitm.h.
1467         (GTM_alloc_local): Rename from alloc_local; export.
1468         * memcpy.c: New file.
1469         * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
1470         * config/posix/page.c: New file.
1471         * config/posix/target_tls.h: Remove file.
1472         * barrier.c: New file.
1473         * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
1474         copymask.c, page.c.
1475         * alloc.c (struct gtm_alloc_action): Move from libitm.h.
1476         * method-wbetl.c: Rewrite for new cacheline methods.
1477         * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.
1478
1479         * config/alpha/sjlj.S: Fix typo.
1480         * config/alpha/target_i.h: Copy functions from alpha/target.h.
1481         * config/alpha/copymask.c: New file.
1482         * config/alpha/target.h (CACHELINE_SIZE): New.
1483         (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.
1484
1485         * config/x86/target_i.h: Copy functions from x86/target.h.
1486         * config/x86/copymask.c: New file.
1487         * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
1488         (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
1489         (PAGE_SIZE, FIXED_PAGE_SIZE): New.
1490         * config/x86/target_tls.h: Move contents to target_i.h.
1491
1492         * testsuite/libitm.c/clone-1.c: Include libitm.h.
1493         * testsuite/libitm.c/memcpy-1.c: New.
1494
1495 2009-10-22  Richard Henderson  <rth@redhat.com>
1496
1497         * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
1498         (AM_CCASFLAGS): New.
1499         * configure.ac: Add AM_PROG_AS.  Use m4_rename_force for
1500         saving/restoring _AC_ARG_VAR_PRECIOUS.
1501         * Makefile.in, aclocal.m4, config.h.in, configure,
1502         testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.
1503
1504 2009-10-22  Richard Henderson  <rth@redhat.com>
1505
1506         * testsuite/*: Update for new compiler syntax.
1507
1508 2009-10-21  Richard Henderson  <rth@redhat.com>
1509
1510         * libitm.h (_ITM_abortReason): Add outerAbort.
1511
1512 2009-08-03  Richard Henderson  <rth@redhat.com>
1513
1514         * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
1515         _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
1516         * method-wbetl.c (struct w_entry): Remove mask.
1517         (wbetl_write, wbetl_load): Return pointer to word containing the data;
1518         adjust all callers.
1519
1520 2009-07-22  Richard Henderson  <rth@redhat.com>
1521
1522         * eh_cpp.c: New file.
1523         * Makefile.am (libitm_la_SOURCES): Add it.
1524         * Makefile.in: Rebuild.
1525         * beginend.c (GTM_rollback_transaction): Undo exception state.
1526         (GTM_trycommit_transaction): Mark inline.
1527         (GTM_trycommit_and_finalize_transaction): Split out from ...
1528         (_ITM_commitTransaction): ... here.
1529         (_ITM_commitTransactionEH): New function.
1530         * libitm.h (struct gtm_transaction): Add cxa_catch_count,
1531         cxa_unthrown, eh_in_flight; reorder.
1532
1533         * testsuite/libitm.c++/c++.exp: New.
1534         * testsuite/libitm.c++/eh-1.C: New.
1535
1536         * aatree.c (aa_free): Remove REGPARM.
1537         * aatree.h: Remove all REGPARM.
1538
1539 2009-07-18  Richard Henderson  <rth@redhat.com>
1540
1541         * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
1542         * Makefile.am (libitm_la_SOURCES): Add them.
1543         * Makefile.in: Rebuild.
1544         * beginend.c (GTM_rollback_transaction): Use GTM_commit_allocations.
1545         (GTM_trycommit_transaction): Likewise.
1546         * libitm.h: Include aatree.h
1547         (struct gtm_alloc_action): New.
1548         (struct gtm_transaction): Add alloc_actions.
1549         (GTM_record_allocation, GTM_forget_allocation): Declare.
1550         (GTM_get_allocation_size, GTM_commit_allocations): Declare.
1551         * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
1552         _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
1553         _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
1554         _ZGTtdaPvRKSt9nothrow_t): Export.
1555
1556 2009-07-18  Richard Henderson  <rth@redhat.com>
1557
1558         * target_tls.h: Move ...
1559         * config/posix/target_tls.h: ... here.
1560
1561 2009-07-07  Richard Henderson  <rth@redhat.com>
1562
1563         * config/x86/target.h (atomic_write_barrier): Use sfence if available.
1564
1565 2009-07-07  Richard Henderson  <rth@redhat.com>
1566
1567         * Update to GPL3.
1568
1569 2009-07-07  Richard Henderson  <rth@redhat.com>
1570
1571         * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
1572         * beginend.c (global_tid): Widen to _ITM_transactionId_t.
1573
1574         * configure.tgt: Don't use -ftls-model for x86 linux.
1575         * libitm.h: Include target.h after standard includes.
1576         (_gtm_thr): Rename from gtm_thr.
1577         (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
1578         (gtm_disp, set_gtm_disp): New.
1579         * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
1580         retry.c, serial.c, useraction.c: Use accessor functions throughout.
1581         * config/alpha/target_tls.h, config/x86/target_tls.h: New files.
1582
1583 2009-07-07  Richard Henderson  <rth@redhat.com>
1584
1585         * config/linux/rwlock.c (EZ): New define.  Use it throughout.
1586
1587 2009-07-06  Richard Henderson  <rth@redhat.com>
1588
1589         * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
1590         (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
1591         (_ITM_beginTransaction): Take variadic arguments.
1592         (_ITM_registerThrownObject): Declare.
1593         * beginend.c, serial.c: Update.
1594         * libitm.map: Add _ITM_registerThrownObject.
1595
1596 2009-01-28  Richard Henderson  <rth@redhat.com>
1597
1598         * Makefile.am (libitm_la_SOURCES): Add clone.c.
1599         * Makefile.in: Rebuild.
1600         * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
1601         (GTM_restart_transaction): Fix uninstrumented code check.
1602         * retry.c (GTM_decide_retry_strategy): Add serial check.
1603         * serial.c (GTM_serialmode): Add irrevokable variable.  Don't
1604         automatically go irrevokable when in serial mode.
1605         * clone.c: New file.
1606         * libitm.h, libitm.map: Update.
1607
1608 2009-01-27  Richard Henderson  <rth@redhat.com>
1609
1610         * Makefile.am (LTCCASCOMPILE): Define.
1611         (libitm_la_SOURCES): Add methid-wbetl.c.
1612         * testsuite/Makefile.am: New
1613         * configure.ac: Add testsuite/Makefile.
1614         * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
1615         * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
1616         (_ITM_abortTransaction): Finalize implementation method; pass
1617         transaction properties to longjmp.
1618         (GTM_restart_transaction): Split out from ...
1619         (_ITM_commitTransaction): ... here.
1620         * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
1621         Move to config/x86/target.h.
1622         * config/linux/alpha/futex_bits.h: New.
1623         * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
1624         * config/x86/target.h: Disable target types for 32-bit.
1625         * config/alpha/sjlj.S, config/alpha/target.h: New.
1626         * libitm.h (struct gtm_dispatch): Add init, fini.
1627         (enum restart_reason): New.
1628         (struct gtm_transaction): Add method and restarts.
1629         * retry.c (GTM_decide_retry_strategy): Implement.
1630         * serial.c (serial_init, serial_fini): New.
1631         (GTM_serialmode): Finialize outgoing method.
1632         * method-wbetl.c: New.
1633
1634 2008-12-09  Richard Henderson  <rth@redhat.com>
1635
1636         * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
1637         * configure.tgt (i386-*, x86_64-*): Don't force SSE.
1638         * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
1639         * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
1640         (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
1641         (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
1642         * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
1643         * serial.c (serial_R##T, serial_W##T): Likewise.
1644
1645 2008-11-21  Richard Henderson  <rth@redhat.com>
1646
1647         * Initial commit.