libitm/ChangeLog

   1 2012-04-04  H.J. Lu  <hongjiu.lu@intel.com>
   2
   3         Backported from mainline
   4         2012-04-04  H.J. Lu  <hongjiu.lu@intel.com>
   5
   6         PR libitm/52854
   7         * config/x86/target.h (gtm_jmpbuf): Replace long with long long
   8         for x86-64.
   9
  10 2012-03-22  Release Manager
  11
  12         * GCC 4.7.0 released.
  13
  14 2012-03-13  Torvald Riegel  <triegel@redhat.com>
  15
  16         PR libitm/52526
  17         * config/linux/rwlock.cc (GTM::gtm_rwlock::read_lock): Fix lost
  18         wake-up.
  19
  20 2012-03-02  Torvald Riegel  <triegel@redhat.com>
  21
  22         * libitm.texi: Link to specification and add a usage example.
  23
  24 2012-02-24  Torvald Riegel  <triegel@redhat.com>
  25
  26         * retry.cc (GTM::gtm_thread::number_of_threads_changed): Change
  27         default dispatch for more than 1 thread to ml_wt.
  28
  29 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  30
  31         * method-gl.cc (gl_wt_dispatch::orec): Put on separate cacheline.
  32
  33 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  34
  35         * method-gl.cc (gl_wt_dispatch::rollback): Optimize memory orders.
  36
  37 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  38
  39         * method-gl.cc (gl_wt_dispatch::trycommit): Remove handling of
  40         serial mode corner cases made obsolete by prior gtm_rwlock changes.
  41         (gl_wt_dispatch.rollback): Same.
  42
  43 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  44
  45         * method-gl.cc (gl_wt_dispatch::pre_write): Optimize memory orders.
  46
  47 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  48
  49         * method-gl.cc (gl_wt_dispatch::memtransfer_static): Add missing undo
  50         for RfW src.  Optimize number of calls to gtm_thr.
  51
  52 2012-02-20  Torvald Riegel  <triegel@redhat.com>
  53
  54         * beginend.cc (GTM::gtm_thread::begin_transaction): Move serial lock
  55         acquisition to ...
  56         * retry.cc (GTM::gtm_thread::decide_begin_dispatch): ... here.
  57         (default_dispatch): Make atomic.
  58         (GTM::gtm_thread::set_default_dispatch): Access atomically.
  59         (GTM::gtm_thread::decide_retry_strategy): Access atomically and
  60         use decide_begin_dispatch() if default_dispatch might have changed.
  61         (GTM::gtm_thread::number_of_threads_changed): Initialize
  62         default_dispatch here.
  63
  64 2012-02-15  Iain Sandoe  <iains@gcc.gnu.org>
  65             Patrick Marlier  <patrick.marlier@gmail.com>
  66
  67         PR libitm/52220
  68         * alloc_cpp.cc: No dummy definitions for darwin.
  69         * eh_cpp.cc: Likewise.
  70
  71 2012-02-14  Richard Henderson  <rth@redhat.com>
  72
  73         * config/x86/target.h (GTM_longjmp): Correct the .cfi corrections.
  74
  75 2012-02-14  Uros Bizjak  <ubizjak@gmail.com>
  76
  77         * config/x86/target.h (GTM_longjmp): Correct .cfi directives.
  78
  79 2012-02-14  Torvald Riegel  <triegel@redhat.com>
  80
  81         * libitm_i.h (GTM::gtm_rwlog_entry): New.
  82         (GTM::gtm_thread): Add read and write logs.
  83         (GTM::dispatch_ml_wt): Declare.
  84         * retry.cc (parse_default_method): Support ml_wt.
  85         * method-ml.cc: New file.
  86         * Makefile.am: Add method-ml.cc.
  87         * Makefile.in: Regenerate.
  88
  89 2012-02-14  Torvald Riegel  <triegel@redhat.com>
  90
  91         * dispatch.h (GTM::abi_dispatch::supports): New.
  92         (GTM::method_group::reinit): New.
  93         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Use reinit().
  94         (GTM::gtm_thread::number_of_threads_changed): Check that the method
  95         supports the current situation.
  96
  97 2012-02-14  Torvald Riegel  <triegel@redhat.com>
  98
  99         * util.cc (GTM::xcalloc): New.
 100         * common.h (GTM::xcalloc): Declare.
 101
 102 2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>
 103
 104         * config/sparc/target.h (cpu_relax): Read from CC register.
 105         * config/sparc/sjlj.S (GTM_longjmp): Restore %fp atomically.
 106
 107 2012-02-14  Uros Bizjak  <ubizjak@gmail.com>
 108
 109         * config/x86/target.h (GTM_longjmp): Jump indirect from memory address.
 110
 111 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
 112
 113         * configure.tgt (target_cpu): Handle sparc and sparc64/sparcv9.
 114         * config/sparc/cacheline.h: New file.
 115         * config/sparc/target.h: Likewise.
 116         * config/sparc/sjlj.S: Likewise.
 117         * config/linux/sparc/futex_bits.h: Likewise.
 118
 119 2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>
 120
 121         * configure.ac (link_itm): Fix comment.
 122         * configure: Regenerate.
 123         * testsuite/lib/libitm.exp: Do not pass -litm for the link.
 124
 125 2012-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 126
 127         PR libitm/51822
 128         * testsuite/libitm.c++/c++.exp (lang_link_flags): Add -shared-libgcc.
 129         Correct libgomp references.
 130
 131 2012-01-24  Torvald Riegel  <triegel@redhat.com>
 132
 133         * config/linux/rwlock.cc (GTM::gtm_rwlock::write_unlock): Fix reader
 134         wake-up.
 135
 136 2012-01-24  Uros Bizjak  <ubizjak@gmail.com>
 137
 138         * config/x86/target.h (gtm_jmpbuf) [__x86_64__]: Move rip to the
 139         end of structure.
 140         * config/x86/sjlj.S (_ITM_beginTransaction) [__x86_64__]: Update
 141         offset values.  Do not copy return address.  Decrement stack
 142         by 56 bytes only.
 143         (GTM_longjump) [__x86_64__]: Update offset values.
 144
 145 2012-01-23  Uros Bizjak  <ubizjak@gmail.com>
 146
 147         PR libitm/51830
 148         * config/x86/sjlj.S (_ITM_beginTransaction) [!__x86_64__]: Load
 149         the first function argument to %eax.
 150
 151 2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 152
 153         * libitm.h (_ITM_getThreadnum): Remove.
 154         * libitm.map (_ITM_getThreadnum): Remove from LIBITM_1.0.
 155
 156 2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 157
 158         * clearcap.map: New file.
 159         * acinclude.m4 (LIBITM_CHECK_LINKER_HWCAP): New test.
 160         * configure.ac: Call it.
 161         Clear HWCAP_LDFLAGS if defaulting to -mavx.
 162         * Makefile.am (AM_LDFLAGS): Add $(HWCAP_LDFLAGS)
 163         * configure: Regenerate.
 164         * Makefile.in: Regenerate.
 165         * testsuite/Makefile.in: Regenerate.
 166
 167 2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 168
 169         PR libitm/51173
 170         * testsuite/libitm.c++/static_ctor.C: Skip test, note PR, remove
 171         include, exclude options.
 172
 173 2012-01-14  Torvald Riegel  <triegel@redhat.com>
 174
 175         * local.cc (GTM::gtm_undolog::rollback): Truncate undo log after
 176         rolling back.
 177         * containers.h (GTM::vector::set_size): New.
 178
 179 2012-01-14  Torvald Riegel  <triegel@redhat.com>
 180
 181         PR libitm/51855
 182         * config/generic/tls.h (GTM::mask_stack_top): New.
 183         (GTM::mask_stack_bottom): Declare.
 184         * config/generic/tls.c (GTM::mask_stack_bottom): New.
 185         * local.cc (gtm_undolog::rollback): Filter out any updates that
 186         overlap the libitm stack.  Add current transaction as parameter.
 187         * libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
 188         * beginend.cc (GTM::gtm_thread::rollback): Adapt.
 189         * testsuite/libitm.c/stackundo.c: New test.
 190
 191 2012-01-10  Richard Henderson  <rth@redhat.com>
 192
 193         * libitm_i.h (_Unwind_DeleteException): Declare weak.
 194         * eh_cpp.cc (_Unwind_DeleteException): Define for
 195         !HAVE_ELF_STYLE_WEAKREF.
 196
 197 2012-01-08  Torvald Riegel  <triegel@redhat.com>
 198
 199         * local.cc (GTM_LB): Use GTM::gtm_undolog.
 200         (GTM::gtm_thread::drop_references_undolog): Remove.
 201         (GTM::gtm_thread::commit_undolog,
 202         GTM::gtm_thread::rollback_undolog): Move to ...
 203         * libitm_i.h (GTM::gtm_undolog): ...here. New.
 204         (GTM::gtm_undolog_entry): Remove.
 205         (GTM::gtm_thread): Adapt.
 206         * beginend.cc (GTM::gtm_thread::rollback): Adapt.
 207         (GTM::gtm_thread::trycommit): Adapt.
 208         * method-serial.cc (serial_dispatch::log): Adapt.
 209         * method-gl.cc (gl_wt_dispatch::pre_write): Adapt.
 210         (gl_wt_dispatch::store): Fix likely/unlikely.
 211         * containers.h (GTM::vector::resize): Add additional_capacity
 212         parameter and handle it.
 213         (GTM::vector::resize_noinline): New/adapt.
 214         (GTM::vector::push): New.
 215
 216 2012-01-06  Richard Henderson  <rth@redhat.com>
 217
 218         * configure.tgt: Support powerpc-linux and powerpc-darwin.
 219         * config/linux/powerpc/futex_bits.h: New file.
 220         * config/powerpc/cacheline.h: New file.
 221         * config/powerpc/sjlj.S: New file.
 222         * config/powerpc/target.h: New file.
 223         * config/generic/asmcfi.h (cfi_offset): New.
 224         (cfi_restore, cfi_undefined): New.
 225
 226 2012-01-05  Aldy Hernandez  <aldyh@redhat.com>
 227
 228         PR other/51171
 229         * testsuite/libitm.c/reentrant.c: Remove xfail.
 230         (thread): Pass x to pure().
 231         From Patrik Marlier <patrick.marlier@gmail.com>.
 232
 233 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 234
 235         * beginend.cc (GTM::gtm_thread::trycommit): Don't enforce
 236         privatization safety if already in serial mode.
 237
 238 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 239
 240         * beginend.cc (GTM::gtm_thread::restart): Add and handle
 241         finish_serial_upgrade parameter.
 242         * libitm.h (GTM::gtm_thread::restart): Adapt declaration.
 243         * config/linux/rwlock.cc (GTM::gtm_rwlock::write_lock_generic):
 244         Don't unset reader flag.
 245         (GTM::gtm_rwlock::write_upgrade_finish): New.
 246         * config/posix/rwlock.cc: Same.
 247         * config/linux/rwlock.h (GTM::gtm_rwlock::write_upgrade_finish):
 248         Declare.
 249         * config/posix/rwlock.h: Same.
 250         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Unset reader
 251         flag after commit or after rollback when restarting.
 252
 253 2011-12-24  Torvald Riegel  <triegel@redhat.com>
 254
 255         * beginend.cc (GTM::gtm_thread::begin_transaction): Add comment.
 256         (GTM::gtm_thread::try_commit): Changed memory order.
 257         * config/linux/alpha/futex_bits.h (sys_futex0): Take atomic int
 258         as parameter.
 259         * config/linux/x86/futex_bits.h (sys_futex0): Same.
 260         * config/linux/sh/futex_bits.h (sys_futex0): Same.
 261         * config/linux/futex_bits.h (sys_futex0): Same.
 262         * config/linux/futex.cc (futex_wait, futex_wake): Same.
 263         * config/linux/futex.h (futex_wait, futex_wake): Same.
 264         * config/linux/rwlock.h (gtm_rwlock::writers,
 265         gtm_rwlock::writer_readers, gtm_rwlock::readers): Change to atomic
 266         ints.
 267         * config/linux/rwlock.cc (gtm_rwlock::read_lock,
 268         gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
 269         gtm_rwlock::write_unlock): Fix memory orders and fences.
 270         * config/posix/rwlock.cc (gtm_rwlock::read_lock,
 271         gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
 272         gtm_rwlock::write_unlock): Same.
 273         * config/linux/rwlock.h (gtm_rwlock::summary): Change to atomic int.
 274         * method-gl.cc (gl_mg::init, gl_wt_dispatch::memtransfer_static,
 275         gl_wt_dispatch::memset_static, gl_wt_dispatch::begin_or_restart):
 276         Add comments.
 277         (gl_wt_dispatch::pre_write, gl_wt_dispatch::validate,
 278         gl_wt_dispatch::load, gl_wt_dispatch::store,
 279         gl_wt_dispatch::try_commit, gl_wt_dispatch::rollback): Fix memory
 280         orders and fences.  Add comments.
 281
 282 2011-12-21  Jakub Jelinek  <jakub@redhat.com>
 283
 284         * Makefile.am (AM_CXXFLAGS): Put $(XCFLAGS) first.
 285         * Makefile.in: Regenerated.
 286
 287 2011-12-17  Kaz Kojima  <kkojima@gcc.gnu.org>
 288
 289         * configure.tgt: Add sh* case.
 290         * config/sh/target.h: New file.
 291         * config/sh/sjlj.S: New file.
 292         * config/linux/sh/futex_bits.h: New file.
 293
 294 2011-12-14  Richard Henderson  <rth@redhat.com>
 295
 296         * config/arm/hwcap.h, config/arm/hwcap.cc: New files.
 297         * config/arm/sjlj.S, config/arm/target.h: New files.
 298         * config/generic/asmcfi.h (cfi_adjust_cfa_offset): New.
 299         (cfi_rel_offset): New.
 300         * config/linux/futex_bits.h: New file.
 301         * config/linux/futex.cc: Include futex_bits.h here...
 302         * config/linux/futex.h: ... not here.
 303         * Makefile.am (libitm_la_SOURCES) <ARCH_ARM>: Add hwcap.cc.
 304         * configure.ac (ARCH_AM): New conditional.
 305         * Makefile.in, configure: Rebuild.
 306         * configure.tgt: Handle ARM.
 307
 308 2011-12-13  Richard Henderson  <rth@redhat.com>
 309
 310         * config/posix/rwlock.cc (gtm_rwlock::write_lock_generic): Fix
 311         signed/unsigned comparison werror.
 312
 313         * local_atomic: New file.
 314         * libitm_i.h: Include it.
 315         (gtm_thread::shared_state): Use atomic template.
 316         * beginend.cc (GTM::gtm_clock): Use atomic template.
 317         (global_tid): Use atomic template if 64-bit atomics available.
 318         (gtm_thread::gtm_thread): Update shared_state access.
 319         (gtm_thread::trycommit): Likewise.
 320         (choose_code_path): Update global_tid access.
 321         * method-gl.cc (gl_mg::orec): Use atomic template.  Update all users.
 322         * stmlock.h (GTM::gtm_clock): Use atomic template.
 323         (gtm_get_clock, gtm_inc_clock): Update accesses.
 324         * config/linux/rwlock.cc (gtm_rwlock::read_lock): Remove
 325         redundant __sync_synchronize after atomic shared_state access.
 326         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Likewise.
 327         (gtm_rwlock::write_lock_generic): Likewise.
 328         (gtm_rwlock::read_unlock): Likewise.
 329         * config/alpha/target.h (atomic_read_barrier): Remove.
 330         (atomic_write_barrier): Remove.
 331         * config/x86/target.h (atomic_read_barrier): Remove.
 332         (atomic_write_barrier): Remove.
 333
 334 2011-11-30  Richard Henderson  <rth@redhat.com>
 335
 336         * libitm_i.h (GTM_longjmp): Swap first and second arguments.
 337         * beginend.c (_ITM_abortTransaction): Update to match.
 338         (GTM::gtm_thread::restart): Likewise.
 339         * config/alpha/sjlj.S (GTM_longjmp): Likewise.
 340         * config/x86/sjlj.S (GTM_longjmp): Likewise.
 341
 342 2011-11-23  Iain Sandoe  <iains@gcc.gnu.org>
 343
 344         * Makefile.am (libitm_la_LDFLAGS): Remove "-no-undefined".
 345         * Makefile.in: Regenerate.
 346
 347 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 348
 349         * configure.ac: Use GCC_CHECK_ELF_STYLE_WEAKREF.
 350         * alloc_cpp.cc: Generate dummy functions if we don't
 351         HAVE_ELF_STYLE_WEAKREF.
 352         * eh_cpp.cc: Likewise.
 353         * configure: Regenerate.
 354         * aclocal.m4:  Likewise.
 355         * config.h.in: Likewise.
 356         * Makefile.in: Likewise.
 357         * testsuite/Makefile.in: Likewise.
 358
 359 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 360
 361         * config/x86/sjlj.S (CONCAT1, CONCAT2, SYM): Respond to
 362         __USER_LABEL_PREFIX__ for targets that use it.
 363         (TYPE, SIZE, HIDDEN): New macros to assist on non-elf targets.
 364         (_ITM_beginTransaction): Use SYM, TYPE, SIZE macros to assist
 365         in portability to non-elf targets.
 366         (GTM_longjmp): Likewise.
 367         * libitm_i.h (begin_transaction): Apply __USER_LABEL_PREFIX__
 368         where required.
 369
 370 2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>
 371
 372         * testsuite/libitm.c/memcpy-1.c: Allow for MAP_ANON spelling.
 373         * testsuite/libitm.c/memset-1.c: Likewise.
 374
 375 2011-11-21  Andreas Tobler  <andreast@fgznet.ch>
 376
 377         * configure: Regenerate.
 378
 379 2011-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 380
 381         * acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Handle gold.
 382         (LIBITM_ENABLE_SYMVERS): Handle sun style.
 383         * Makefile.am: Handle sun style versioning.
 384         (libitm_la_LINK): Add $(libitm_la_LDFLAGS).
 385         * configure: Regenerate.
 386         * Makefile.in: Regenerate.
 387
 388 2011-11-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 389
 390         * config/generic/asmcfi.h: Fix comment.
 391         * config/x86/sjlj.S (_ITM_beginTransaction): Provide ELF PIC code
 392         sequence without .hidden support, error for non-ELF targets.
 393         (GTM_longjmp) [__ELF__]: Only use .hidden if
 394         HAVE_ATTRIBUTE_VISIBILITY.
 395
 396 2011-11-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 397
 398         * alloc_cpp.cc [__osf__] (_ZnwX, _ZdlPv, _ZnaX, _ZdaPv,
 399         _ZnwXRKSt9nothrow_t, _ZdlPvRKSt9nothrow_t, _ZdaPvRKSt9nothrow_t):
 400         Dummy functions.
 401         * eh_cpp.cc [__osf__] (__cxa_allocate_exception, __cxa_throw,
 402         __cxa_begin_catch, __cxa_end_catch, __cxa_tm_cleanup): Likewise.
 403
 404 2011-11-16  Uros Bizjak  <ubizjak@gmail.com>
 405
 406         PR bootstrap/51098
 407         * acinclude.m4 (LIBITM_CHECK_AS_AVX): Fix target selector.
 408         * configure: Regenerate.
 409
 410 2011-11-14  H.J. Lu  <hongjiu.lu@intel.com>
 411
 412         * testsuite/lib/libitm.exp: Check ia32 instead of ilp32.
 413
 414 2011-11-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 415
 416         * config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
 417         .hidden.
 418         (.note.GNU-stack): Only use if __linux__.
 419         * alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
 420         * testsuite/libitm.c/notx.c: Use dg-options "-pthread".
 421         * testsuite/libitm.c/reentrant.c: Likewise.
 422         * testsuite/libitm.c/simple-2.c: Likewise.
 423         * testsuite/libitm.c/txrelease.c: Likewise.
 424         * testsuite/libitm.c++/static_ctor.C: Likewise.
 425
 426 2011-11-10  Richard Henderson  <rth@redhat.com>
 427
 428         * config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
 429         * Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
 430         * configure.ac (ARCH_X86_AVX): New conditional.
 431         * Makefile.in, configure: Rebuild.
 432
 433 2011-11-09  Richard Henderson  <rth@redhat.com>
 434
 435         * acinclude.m4 (LIBITM_CHECK_AS_AVX): New.
 436         * configure.ac: Use it.
 437         * config.h.in, configure: Rebuild.
 438         * config/x86/x86_avx.cc: Handle !HAVE_AS_AVX.
 439
 440 2011-11-09  Richard Henderson  <rth@redhat.com>
 441
 442         * barrier.tpl, memcpy.cc, memset.cc, method-wbetl.cc: Remove file.
 443         * config/alpha/unaligned.h: Remove file.
 444         * config/generic/unaligned.h: Remove file.
 445         * config/x86/unaligned.h: Remove file.
 446         * config/generic/cachepage.h: Remove file.
 447         * config/posix/cachepage.cc: Remove file.
 448         * config/generic/cacheline.cc: Remove file.
 449         * config/x86/cacheline.cc: Remove file.
 450         * config/generic/cacheline.h (gtm_cacheline): Remove the
 451         store_mask, copy_mask, copy_mask_wb methods.
 452         * config/x86/cacheline.h: Likewise.
 453         * config/alpha/cacheline.h: Fall back to generic after setting size.
 454         * config/generic/tls.cc (gtm_mask_stack): Remove.
 455         * config/x86/x86_avx.cc (GTM_vpperm_shift): Remove.
 456         (GTM_vpalignr_table): Remove.
 457         * config/x86/x86_sse.cc (GTM_palignr_table): Remove.
 458         (GTM_pshift_table): Remove.
 459         * config/libitm_i.h: Don't include cachepage.h.
 460         * Makefile.am (libitm_la_SOURCES): Remove cacheline.cc, cachepage.cc
 461         * Makefile.in, testsuite/Makefile.in: Rebuild.
 462
 463 2011-11-09  Richard Henderson  <rth@redhat.com>
 464
 465         * config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
 466         to emit branch prediction hint.
 467
 468         * config/x86/sjlj.S: Protect elf directives with __ELF__.
 469         Protect .note.GNU-stack with __linux__.
 470
 471         * configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
 472         * configure, aclocal.m4, config.h.in: Rebuild.
 473         * config/generic/asmcfi.h: New file.
 474         * config/x86/sjlj.S: Use it.
 475
 476 2011-11-08  Richard Henderson  <rth@redhat.com>
 477
 478         * local.cc (_ITM_LB): Use a normal call, not a function alias.
 479
 480 2011-11-08  Richard Henderson  <rth@redhat.com>
 481
 482         * configure.tgt: Test correct directory for supported cpus.
 483
 484         * configure.ac: Exit if unsupported.
 485         * configure: Rebuild.
 486         * configure.tgt: Delete boilerplate from libgomp for unsupported
 487         targets.  Set UNSUPPORTED for unsupported targets.
 488
 489 2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 490
 491         * configure.tgt: Handle i386 like i[456]86.
 492         * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
 493         take address.
 494         * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
 495         !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.
 496
 497 2011-11-05  Aldy Hernandez  <aldyh@redhat.com>
 498
 499         * method-wbetl.cc: Update copyright notice.
 500         * aatree.cc: Same.
 501         * util.cc: Same.
 502         * libitm.h: Same.
 503         * memset.cc: Same.
 504         * eh_cpp.cc: Same.
 505         * barrier.tpl: Same.
 506         * useraction.cc: Same.
 507         * stmlock.h: Same.
 508         * memcpy.cc: Same.
 509         * common.h: Same.
 510         * config/generic/tls.cc: Same.
 511         * config/generic/cacheline.h: Same.
 512         * config/generic/cachepage.h: Same.
 513         * config/generic/cacheline.cc: Same.
 514         * config/generic/unaligned.h: Same.
 515         * config/x86/cacheline.h: Same.
 516         * config/x86/cacheline.cc: Same.
 517         * config/x86/unaligned.h: Same.
 518         * config/alpha/cacheline.h: Same.
 519         * config/alpha/unaligned.h: Same.
 520         * config/alpha/sjlj.S: Same.
 521         * config/posix/cachepage.cc: Same.
 522         * config/linux/futex.h: Same.
 523         * config/linux/alpha/futex_bits.h: Same.
 524
 525 2011-11-04  Torvald Riegel  <triegel@redhat.com>
 526
 527         * libitm.texi: No cover text and invariant sections.
 528
 529 2011-11-03  Richard Henderson  <rth@redhat.com>
 530
 531         * local_type_traits: New file.
 532         * libitm_i.h: Use it.  Use C headers, not C++ wrappers.
 533
 534 2011-11-03  Richard Henderson  <rth@redhat.com>
 535
 536         * configure.ac: Don't test for gfortran.
 537         * configure: Rebuild.
 538
 539         * testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
 540         * testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.
 541
 542 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 543
 544         * testsuite/libitm.c/memcpy-1.c: Add copyright notice.
 545         * testsuite/libitm.c/memset-1.c: Same.
 546         * testsuite/libitm.c/c.exp: Same.
 547         * testsuite/lib/libitm-dg.exp: Same.
 548         * testsuite/lib/libitm.exp: Same.
 549         * testsuite/libitm.c++/c++.exp: Same.
 550
 551 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 552
 553         * testsuite/config/default.exp: Update copyright date.
 554         * configure.ac: Add copyright info.
 555         * configure.tgt: Same.
 556
 557 2011-11-03  Aldy Hernandez  <aldyh@redhat.com>
 558
 559         * testsuite/libitm.c/reentrant.c: XFAIL.
 560         * testsuite/libitm.c++/static_ctor.C: XFAIL.
 561
 562 2011-10-29  Torvald Riegel  <triegel@redhat.com>
 563
 564         * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
 565         handle aborts.
 566         (_ITM_abortTransaction): Handle aborts of outer transactions.
 567         * libitm_i.h: Same.
 568         * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
 569         * libitm.texi: Document aborts of outer transactions.
 570         * testsuite/libitm.c/cancel.c: New file.
 571
 572 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 573
 574         * testsuite/*: Change __transaction to __transaction_atomic or
 575         __transaction_relaxed.
 576
 577 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 578
 579         * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
 580         (gtm_thr): Same.
 581
 582 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 583
 584         * libitm_i.h: Add gl_wt dispatch.
 585         * retry.cc (parse_default_method): Same.
 586         * method-gl.cc: New file.
 587         * Makefile.am: Use method-gl.cc.
 588         * Makefile.in: Rebuild.
 589
 590 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 591
 592         * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
 593         safety if requested by a TM method.
 594         * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
 595         privatization safety.
 596         * method-serial.cc: Same.
 597
 598 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 599
 600         * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
 601         (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
 602         undolog-related member functions from *_local to *_undolog.
 603         * local.cc (gtm_thread::commit_undolog): Same.
 604         * beginend.cc (GTM::gtm_thread::trycommit): Same.
 605         (GTM::gtm_thread::rollback): Roll back undolog before
 606         dispatch-specific rollback.
 607
 608 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 609
 610         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
 611         re-initialization of the current method group.
 612         * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.
 613
 614 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 615
 616         * alloc.cc (commit_allocations_2): Do not free transaction-local
 617         memory when committing a nested transaction.
 618
 619 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 620
 621         * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
 622         serial-irrevocable dispatch, not serial.
 623
 624 2011-10-19  Torvald Riegel  <triegel@redhat.com>
 625
 626         * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
 627         declarations.
 628         * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
 629         * method-serial.cc: Implement begin_or_restart().
 630         * beginend.cc (GTM::gtm_thread::begin_transaction): Call
 631         dispatch-specific begin_or_restart().
 632         (GTM::gtm_thread::restart): Same.
 633
 634 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 635
 636         * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
 637         restarting without switching to serial mode.
 638         (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
 639         transaction state. Choose closed-nesting alternative if available.
 640         (GTM::gtm_thread::set_default_dispatch): New.
 641         (parse_default_method): New.
 642         (GTM::gtm_thread::number_of_threads_changed): New.
 643         * method-serial.cc (GTM::serial_mg): New method group class.
 644         (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
 645         fini.
 646         (GTM::serial_dispatch): Same.
 647         (GTM::serialirr_onwrite_dispatch): Same.
 648         (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
 649         * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
 650         registered threads.
 651         (GTM::gtm_thread::gtm_thread): Same.
 652         (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
 653         (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
 654         (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
 655         choose dispatch but set state according to dispatch here.
 656         * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
 657         (GTM::method_group): New class.
 658         (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
 659         * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
 660         * libitm.texi: Document TM methods, method groups, method life cycle.
 661         Rename method sets to method groups.
 662
 663 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 664
 665         * config/x86/tls.h: Moved to ...
 666         * config/linux/x86/tls.h: ... here.
 667
 668 2011-08-23  Torvald Riegel  <triegel@redhat.com>
 669
 670         * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
 671         Add X32 support.
 672         * config/x86/sjlj.S: Same.
 673
 674 2011-08-19  Torvald Riegel  <triegel@redhat.com>
 675
 676         * config/linux/rwlock.h: New file.
 677         * config/linux/rwlock.c: New file.
 678         * configure.ac: Reenable futex support (undo SVN rev 157758).
 679         * Makefile.am: Same.
 680         * configure.tgt: Same.
 681         * config/linux/alpha/futex_bits.h: Same.
 682         * config/linux/futex.h: Same. Return number of woken processes.
 683         * config/linux/futex.cc: Same.
 684         (futex_wait): Remove spinning.
 685         * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
 686         Use __x86_64__ instead of __LP64__.
 687         * aclocal.m4: Include generic futex checks.
 688         * configure: Rebuild.
 689         * Makefile.in: Rebuild.
 690         * testsuite/Makefile.in: Rebuild.
 691         * beginend.cc: Include pthread.h.
 692         * config/posix/cachepage.cc: Same.
 693
 694 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 695
 696         * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 697         (abi_disp, set_abi_disp): Move to tx's TLS slot.
 698         (set_gtm_thr): New.
 699         * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
 700         (set_gtm_thr): New.
 701         (GTM::gtm_thread::thread_num): Removed.
 702         (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
 703         * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
 704         tx-to-thread renaming.
 705         * beginend.cc: Adapted to tx-to-thread renaming.
 706         (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
 707         (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
 708         * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
 709         gtm_transaction to gtm_thread.
 710         (_ITM_getThreadnum): Removed. Not supported anymore.
 711         * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
 712         * libitm.texi: Documented that _ITM_getThreadnum is not supported.
 713         * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
 714         gtm_tx-to-gtm_thr renaming if necessary.
 715         * eh_cpp.cc: Same.
 716         * local.cc: Same.
 717         * retry.cc: Same.
 718         * clone.cc: Same.
 719         * alloc.cc: Same.
 720         * alloc_c.cc: Same.
 721         * alloc_cpp.cc: Same.
 722         * method-serial.cc: Same.
 723         * config/generic/tls.cc: Same.
 724         * config/posix/rwlock.h (gtm_rwlock): Same.
 725         * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.
 726
 727 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 728
 729         * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
 730         implementation.
 731         (gtm_rwlock::read_unlock): Same.
 732         (gtm_rwlock::write_lock_generic): New. Generalized from ...
 733         (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
 734         * libitm_i.h (GTM::gtm_transaction): Added shared_state.
 735         * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
 736         w_upgrade. Replaced by per-transaction flags (in shared_state).
 737         Added c_confirmed_writers.
 738         (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
 739         GTM::gtm_rwlock::write_upgrade): Add tx parameter.
 740         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
 741         * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
 742         * beginend.cc (GTM::gtm_transaction::begin_transaction,
 743         _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
 744         * libitm.texi: Document locking conventions and implementations in
 745         libitm.
 746
 747 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 748
 749         * libitm_i.h (next_tx): Add list of all threads' transaction.
 750         * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
 751         transaction with list of transactions and ...
 752         (thread_exit_handler): ... deregister here.
 753         * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
 754         * config/x86/target.h: Same.
 755
 756 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 757
 758         * testsuite/libitm.c++/static_ctor.C: New file.
 759
 760 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 761
 762         * testsuite/libitm.c/reentrant.c: New file.
 763
 764 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 765
 766         * config/generic/tls.h: Remove the free list for transactions and ...
 767         * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
 768         (GTM::gtm_transaction::operator delete): ... and release here.
 769         (thread_exit_handler): New. Delete tx when thread terminates.
 770         (thread_exit_init): New.
 771         (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
 772         * testsuite/libitm.c/txrelease.c: New file.
 773
 774 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 775
 776         * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
 777         * testsuite/libitm.c/notx.c: New file.
 778
 779 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 780
 781         * config/generic/tls.h (gtm_thread): Move local_tid from here ...
 782         * libitm_i.h (local_tid): ... to here.
 783         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
 784         (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.
 785
 786 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 787
 788         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
 789         serialirr_onwrite_dispatch as new default for now.
 790         * method-serial.cc (serialirr_onwrite_dispatch): New.
 791         (GTM::dispatch_serialirr_onwrite): New.
 792         * libitm_i.h: Same.
 793
 794 2011-08-12  Torvald Riegel  <triegel@redhat.com>
 795
 796         * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
 797         * query.cc (_ITM_getTransactionId): There is no active transaction if
 798         the current nesting level is zero.
 799
 800 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 801
 802         * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
 803         rollback.
 804
 805 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 806
 807         * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
 808         transaction properties from the caller instead of from the
 809         transaction object.
 810         * libitm_i.h: Same.
 811         * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
 812
 813 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 814
 815         * local.cc (gtm_transaction::rollback_local): Support closed nesting.
 816         * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
 817         * dispatch.h: Same.
 818         * method-serial.cc: Same.
 819         * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
 820         flat nesting as default, and closed nesting on demand.
 821         (GTM::gtm_transaction::rollback): Same.
 822         (_ITM_abortTransaction): Same.
 823         (GTM::gtm_transaction::restart): Same.
 824         (GTM::gtm_transaction::trycommit): Same.
 825         (GTM::gtm_transaction::trycommit_and_finalize): Removed.
 826         (choose_code_path): New.
 827         (GTM::gtm_transaction_cp::save): New.
 828         (GTM::gtm_transaction_cp::commit): New.
 829         * query.cc (_ITM_inTransaction): Support flat nesting.
 830         * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
 831         (GTM::gtm_transaction): Support flat and closed nesting.
 832         * alloc.cc (commit_allocations_2): New.
 833         (commit_cb_data): New helper struct.
 834         (GTM::gtm_transaction::commit_allocations): Handle nested
 835         commits/rollbacks.
 836         * libitm.texi: Update user action section, add description of nesting.
 837
 838 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 839
 840         * libitm_i.h: Add closed nesting as restart reason.
 841         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
 842
 843 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 844
 845         * useraction.cc: Use vector instead of list to store actions.
 846         Also support partial rollbacks for closed nesting.
 847         * libitm_i.h (GTM::gtm_transaction::user_action): Same.
 848         * beginend.cc: Same.
 849
 850 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 851
 852         * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
 853         closed_nesting flags, as well as a closed nesting alternative.
 854         * method-serial.cc: Same.
 855         (serial_dispatch): Renamed to serialirr_dispatch.
 856         (GTM::dispatch_serialirr): Same.
 857         (serial_dispatch_ul): Renamed to serial_dispatch.
 858         (GTM::dispatch_serial): Same.
 859
 860 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 861
 862         * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.
 863
 864 2011-07-28  Torvald Riegel  <triegel@redhat.com>
 865
 866         * aatree.h (aa_tree::remove): New.
 867         (aa_tree::operator new): Add placement new.
 868
 869 2011-07-02  Torvald Riegel  <triegel@redhat.com>
 870
 871         * containers.h: New file.
 872         * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
 873         * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
 874         * common.h: ... to here.
 875         (local_undo): Use GTM::vector for gtm_transaction::local_undo.
 876         * local.cc: Same.
 877
 878 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 879
 880         * libitm_i.h (STATE_ABORTING): Remove.
 881         * beginend.cc (_ITM_abortTransaction): Same.
 882         (GTM::gtm_transaction::trycommit_and_finalize): Same.
 883         * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
 884         (_ITM_rollbackTransaction): Remove.
 885         * beginend.cc: Same.
 886         * libitm.map: Same.
 887         * libitm.texi: Document these ABI changes.
 888
 889 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 890
 891         * libitm.texi: New file.
 892         * Makefile.am: Add libitm.texi.
 893         * Makefile.in: Rebuild.
 894
 895 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 896
 897         * libitm_i.h: Move parts to common.h and dispatch.h.
 898         * common.h: New file.
 899         * dispatch.h: New file, new dispatch class.
 900         Rename GTM::abi_dispatch::lock_type to ls_modifier.
 901         RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
 902         * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
 903         decision to retry.cc.
 904         * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
 905         only.
 906         (GTM::gtm_transaction::decide_begin_dispatch): Same.
 907         * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
 908         logging.
 909         * barrier.cc: Use new barriers definitions.
 910         (abi_dispatch::memmove_overlap_check): New.
 911         * config/x86/x86_sse.cc: Same.
 912         * config/x86/x86_avx.cc: Same.
 913         * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
 914         memcpy.cc.
 915         * Makefile.in: Rebuild.
 916         * method-readonly.cc: Remove.
 917         * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
 918         Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.
 919
 920 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 921
 922         * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
 923         * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
 924         * testsuite/libitm.c/dropref-2.c: Same.
 925         * testsuite/libitm.c/dropref.c: Same.
 926
 927 2011-06-30  Torvald Riegel  <triegel@redhat.com>
 928
 929         * config/generic/tls.h (gtm_disp): Rename to abi_disp.
 930         * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
 931         * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
 932         * alloc_c.cc: Same.
 933         * barrier.tpl: Same.
 934         * beginend.c: Same.
 935         * config/generic/tls.h: Same.
 936         * config/x86/tls.h: Same.
 937         * libitm_i.h: Same.
 938         * memcpy.cc: Same.
 939         * memset.cc: Same.
 940         * method-readonly.cc: Same.
 941         * method-serial.cc: Same.
 942         * method-wbetl.cc: Same.
 943         * retry.cc: Same.
 944
 945 2011-03-03  Richard Henderson  <rth@redhat.com>
 946
 947         * config/posix/rwlock.cc (write_upgrade): Add missing case.
 948         From Patrik Marlier <patrick.marlier@unine.ch>.
 949
 950 2011-02-03  Richard Henderson  <rth@redhat.com>
 951
 952         * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
 953         * configure.ac: Use it.
 954         * configure, config.h.in: Rebuild.
 955         * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
 956         (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
 957         _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
 958         * libitm.map: Use wildcards to match size_t mangling.
 959
 960 2010-12-14  Richard Henderson  <rth@redhat.com>
 961
 962         * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
 963         blocks of TIDs per thread.
 964         * config/generic/tls.h (struct gtm_thread): Add local_tid member.
 965         (setup_gtm_thr): Return the thread structure.
 966         * config/x86/tls.h (setup_gtm_thr): Likewise.
 967
 968 2010-12-14  Richard Henderson  <rth@redhat.com>
 969
 970         * clone.cc (table_lock): Remove.
 971         (find_clone): Don't take it.
 972         (ExcludeTransaction): New helper class.
 973         (_ITM_registerTMCloneTable): Use it.
 974         (_ITM_deregisterTMCloneTable): Likewise.
 975
 976 2010-12-14  Richard Henderson  <rth@redhat.com>
 977
 978         * config/x86/tls.h: New file.
 979
 980 2010-07-15  Richard Henderson  <rth@redhat.com>
 981
 982         * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
 983         * Makefile.in: Rebuild.
 984
 985 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
 986
 987         * method-wbetl.cc (trydropreference): Fix source line.
 988
 989 2010-07-13  Aldy Hernandez  <aldyh@redhat.com>
 990
 991         * libitm.h: Add comment.
 992         * libitm_i.h (begin_transaction): Add ITM_REGPARM.
 993
 994 2010-07-07  Aldy Hernandez  <aldyh@redhat.com>
 995
 996         * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
 997         * beginend.cc (begin_transaction): If 64-bit sync builtins are not
 998         available, use pthread mutexes.
 999         * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
1000         * config.h.in: Regenerate.
1001         * configure: Regenerate.
1002
1003 2010-07-06  Aldy Hernandez  <aldyh@redhat.com>
1004
1005         * libitm.h (ITM_PURE): Define.
1006         Declare _ITM_malloc, _ITM_calloc, and _ITM_free.
1007
1008 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
1009
1010         * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
1011         (validate): Add comment.
1012         (trydropreference): New.
1013         * method-readonly.cc (class readonly_dispatch): Add
1014         trydropreference.
1015         * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
1016         Call trydropreference().
1017         * libitm.h (_ITM_dropReferences): Remove const attribute.
1018         * method-serial.cc (class serial_dispatch): Add trydropreference.
1019         * libitm_i.h (struct gtm_dispatch): Add trydropreference.
1020
1021 2010-06-28  Aldy Hernandez  <aldyh@redhat.com>
1022
1023         * memcpy.cc (do_memcpy): Comment.
1024
1025 2010-06-25  Aldy Hernandez  <aldyh@redhat.com>
1026
1027         * barrier.tpl: Add comments throughout.
1028
1029 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
1030
1031         * method-wbetl.cc (struct w_entry): Add comments.
1032         (trycommit): Same.
1033         (rollback): Same.
1034
1035 2010-06-24  Aldy Hernandez  <aldyh@redhat.com>
1036
1037         * alloc_c.cc (_ITM_dropReferences): New.
1038         * libitm.map (_ITM_dropReferences): Add.
1039         * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
1040         * libitm_i.h (struct gtm_transaction): Declare
1041         drop_references_allocations and drop_references_local.
1042         * local.cc (rollback_local): Ignore memory when applicable.
1043         (drop_references_local): New.
1044
1045 2010-06-23  Richard Henderson  <rth@redhat.com>
1046
1047         * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
1048         memset.cc, method-serial.cc: Revert the 2010-06-16 change.
1049         * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
1050         * config/alpha/target.h: Likewise.
1051         * config/generic/tls.cc (gtm_mask_stack): Use it.
1052
1053 2010-06-23  Richard Henderson  <rth@redhat.com>
1054
1055         * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
1056         a mutex instead of trying a lock-free compare-and-swap on the list.
1057         (gtm_cacheline_page::operator delete): Likewise.
1058
1059 2010-06-16  Richard Henderson  <rth@redhat.com>
1060
1061         * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
1062         that overlap the libitm stack.
1063         * barrier.tpl: Mark incoming stack.
1064         * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
1065         _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
1066         * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
1067         * memcpy.cc, memset.cc: Likewise.
1068         * method-serial.cc (_ITM_changeTransactionMode): Likewise.
1069         * config/generic/tls.h (gtm_thread): Add stack_top member.
1070         (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
1071         * libitm_i.h (gtm_mask_stack): Declare.
1072         * config/generic/tls.cc: New file.
1073         * Makefile.am (libitm_la_SOURCES): Add it.
1074         (AM_CXXFLAGS): Turn off exceptions.
1075         * Makefile.in: Rebuild.
1076
1077 2010-06-16  Richard Henderson  <rth@redhat.com>
1078
1079         * alloc.cc (struct gtm_alloc_action): Move definition ...
1080         * libitm_i.h: ... here.
1081         (class gtm_transaction): Declare new and delete.
1082         * beginend.cc (alloc_tx): Reformulate as operator new.
1083         (free_tx): Reformulate as operator delete.
1084         * config/generic/tls.h (gtm_thread): Change free_tx member to void *.
1085
1086 2010-06-11  Richard Henderson  <rth@redhat.com>
1087
1088         * clone.cc (clone_entry_compare): Fix typo.
1089         From Patrik Marlier <patrick.marlier@unine.ch>.
1090
1091 2010-05-13  Richard Henderson  <rth@redhat.com>
1092
1093         * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
1094         in extern "C".
1095
1096 2010-05-07  Aldy Hernandez  <aldyh@redhat.com>
1097
1098         * libitm_i.h (struct gtm_transaction): Remove
1099         get_allocation_size.
1100         (record_allocation): Remove size parameter.
1101         * libitm.map (_ITM_realloc): Remove.
1102         * alloc_c.cc (_ITM_realloc): Remove.
1103         (_ITM_malloc): Remove size argument to record_allocation.
1104         (_ITM_calloc): Same.
1105         * alloc_cpp.cc (_ZGTtnwm): Same.
1106         (_ZGTtnwmRKSt9nothrow_t): Same.
1107         (_ZGTtnam): Same.
1108         (_ZGTtnamRKSt9nothrow_t): Same.
1109         * alloc.cc (struct gtm_alloc_action): Remove size.
1110         (get_allocation_size): Remove.
1111         (commit_allocations): Add comment.
1112         (record_allocation): Remove size parameter.
1113         (forget_allocation): Remove set of size.
1114
1115 2010-04-19  Aldy Hernandez  <aldyh@redhat.com>
1116
1117         * Makefile.am (abi_version): New.
1118         (AM_CXXFLAGS): Pass abi_version.
1119         * Makefile.in: Regenerate.
1120         * config/x86/unaligned.h: Remove always_inline kludge for vectors.
1121
1122 2010-04-06  Aldy Hernandez  <aldyh@redhat.com>
1123
1124         * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
1125         _ITM_getTMCloneOrIrrevokable.
1126         * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
1127         * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.
1128
1129 2010-03-26  Aldy Hernandez  <aldyh@redhat.com>
1130
1131         * configure.ac: Remove Linux futex support.
1132         * configure.tgt (config_path): Same.
1133         * Makefile.am: Same.
1134         * config/linux: Remove entire directory.
1135         * configure: Rebuild.
1136         * Makefile.in: Rebuild.
1137         * testsuite/Makefile.in: Rebuild.
1138
1139 2010-03-09  Aldy Hernandez  <aldyh@redhat.com>
1140
1141         * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
1142         switching to serial mode.
1143         * beginend.cc (trycommit_and_finalize): Unlock serial_lock.
1144
1145 2010-03-03  Aldy Hernandez  <aldyh@redhat.com>
1146
1147         * configure.tgt: Add emacs -*- tags.
1148         * barrier.tpl: Same.
1149
1150 2010-02-23  Aldy Hernandez  <aldyh@redhat.com>
1151
1152         * Makefile.am: Rename serial.cc to method-serial.cc.
1153         * Makefile.in: Regenerate with automake 1.11.1.
1154         * testsuite/Makefile.in: Same.
1155         * aclocal.m4: Regenerate with aclocal 1.11.1.
1156         * method-serial.cc: Rename from serial.cc.
1157         * libitm_i.h (struct gtm_transaction): Update comment on
1158         serialirr_mode.
1159
1160 2010-02-22  Aldy Hernandez  <aldyh@redhat.com>
1161
1162         * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
1163         * config/linux/rwlock.h (class gtm_rwlock): Add comments.
1164
1165 2010-02-11  Aldy Hernandez  <aldyh@redhat.com>
1166
1167         * configure: Rebuild.
1168
1169 2009-11-12  Richard Henderson  <rth@redhat.com>
1170
1171         * Rewrite everything in C++.
1172
1173 2009-11-03  Richard Henderson  <rth@redhat.com>
1174
1175         * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
1176         * Makefile.am (libitm_la_SOURCES): Add them.
1177         * configure.ac (ARCH_X86): New conditional.
1178         * Makefile.in, configure: Rebuild.
1179         * configure.tgt: Set up ARCH; do cflags setup at the same time.
1180         Move futex setup into "other system configury" case.
1181         * local.c (rollback_local): Merge into ...
1182         (GTM_rollback_local): ... here.
1183         (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
1184         (_ITM_LB): Define as an alias to GTM_LB.
1185
1186 2009-11-03  Richard Henderson  <rth@redhat.com>
1187
1188         * method-readonly.c: New file.
1189         * Makefile.am (libitm_la_SOURCES): Add it.
1190         * Makefile.in: Rebuild.
1191         * beginend.c (gtm_stmlock_array, gtm_clock): New.
1192         (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
1193         * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
1194         (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
1195         gtm_stmlock_set_owned, gtm_stmlock_get_addr,
1196         gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
1197         gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
1198         gtm_get_clock, gtm_inc_clock): New.
1199         * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
1200         LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
1201         LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
1202         locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
1203         replace uses with new libitm_i.h symbols.
1204         (dispatch_wbetl): Rename from wbetl_dispatch.
1205         * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
1206         away from dispatch_readonly; abort if the beginTransaction call
1207         asserted that the transaction was readonly.
1208
1209 2009-11-03  Richard Henderson  <rth@redhat.com>
1210
1211         * memset.c: New file.
1212         * Makefile.am (libitm_la_SOURCES): Add it.
1213         * Makefile.in: Rebuild.
1214         * testsuite/libitm.c/memset-1.c: New.
1215
1216 2009-11-03  Richard Henderson  <rth@redhat.com>
1217
1218         * dispatch.c: Remove file.
1219         * useraction.c (struct gtm_user_action): Move from libitm.h.
1220         * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
1221         (serial_memset, serial_memmove, serial_memcpy): Remove.
1222         (serial_W*, serial_R*): Remove.
1223         (serial_dispatch): Update to match.
1224         * configure.ac: Move Werror down below configure checks.  Don't
1225         check for sys/loadavg.h, do check for malloc.h.  Don't check for
1226         getloadavg and clock_gettime; do check for memalign, posix_memalign.
1227         Use GCC_AC_FUNC_MMAP_BLACKLIST
1228         * libitm.h: Split out all internal items to...
1229         * libitm_i.h: ... here.  New file.
1230         * copymask.c: New file.
1231         * local.c (struct gtm_local_undo): Move from libitm.h.
1232         (GTM_alloc_local): Rename from alloc_local; export.
1233         * memcpy.c: New file.
1234         * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
1235         * config/posix/page.c: New file.
1236         * config/posix/target_tls.h: Remove file.
1237         * barrier.c: New file.
1238         * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
1239         copymask.c, page.c.
1240         * alloc.c (struct gtm_alloc_action): Move from libitm.h.
1241         * method-wbetl.c: Rewrite for new cacheline methods.
1242         * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.
1243
1244         * config/alpha/sjlj.S: Fix typo.
1245         * config/alpha/target_i.h: Copy functions from alpha/target.h.
1246         * config/alpha/copymask.c: New file.
1247         * config/alpha/target.h (CACHELINE_SIZE): New.
1248         (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.
1249
1250         * config/x86/target_i.h: Copy functions from x86/target.h.
1251         * config/x86/copymask.c: New file.
1252         * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
1253         (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
1254         (PAGE_SIZE, FIXED_PAGE_SIZE): New.
1255         * config/x86/target_tls.h: Move contents to target_i.h.
1256
1257         * testsuite/libitm.c/clone-1.c: Include libitm.h.
1258         * testsuite/libitm.c/memcpy-1.c: New.
1259
1260 2009-10-22  Richard Henderson  <rth@redhat.com>
1261
1262         * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
1263         (AM_CCASFLAGS): New.
1264         * configure.ac: Add AM_PROG_AS.  Use m4_rename_force for
1265         saving/restoring _AC_ARG_VAR_PRECIOUS.
1266         * Makefile.in, aclocal.m4, config.h.in, configure,
1267         testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.
1268
1269 2009-10-22  Richard Henderson  <rth@redhat.com>
1270
1271         * testsuite/*: Update for new compiler syntax.
1272
1273 2009-10-21  Richard Henderson  <rth@redhat.com>
1274
1275         * libitm.h (_ITM_abortReason): Add outerAbort.
1276
1277 2009-08-03  Richard Henderson  <rth@redhat.com>
1278
1279         * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
1280         _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
1281         * method-wbetl.c (struct w_entry): Remove mask.
1282         (wbetl_write, wbetl_load): Return pointer to word containing the data;
1283         adjust all callers.
1284
1285 2009-07-22  Richard Henderson  <rth@redhat.com>
1286
1287         * eh_cpp.c: New file.
1288         * Makefile.am (libitm_la_SOURCES): Add it.
1289         * Makefile.in: Rebuild.
1290         * beginend.c (GTM_rollback_transaction): Undo exception state.
1291         (GTM_trycommit_transaction): Mark inline.
1292         (GTM_trycommit_and_finalize_transaction): Split out from ...
1293         (_ITM_commitTransaction): ... here.
1294         (_ITM_commitTransactionEH): New function.
1295         * libitm.h (struct gtm_transaction): Add cxa_catch_count,
1296         cxa_unthrown, eh_in_flight; reorder.
1297
1298         * testsuite/libitm.c++/c++.exp: New.
1299         * testsuite/libitm.c++/eh-1.C: New.
1300
1301         * aatree.c (aa_free): Remove REGPARM.
1302         * aatree.h: Remove all REGPARM.
1303
1304 2009-07-18  Richard Henderson  <rth@redhat.com>
1305
1306         * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
1307         * Makefile.am (libitm_la_SOURCES): Add them.
1308         * Makefile.in: Rebuild.
1309         * beginend.c (GTM_rollback_transaction): Use GTM_commit_allocations.
1310         (GTM_trycommit_transaction): Likewise.
1311         * libitm.h: Include aatree.h
1312         (struct gtm_alloc_action): New.
1313         (struct gtm_transaction): Add alloc_actions.
1314         (GTM_record_allocation, GTM_forget_allocation): Declare.
1315         (GTM_get_allocation_size, GTM_commit_allocations): Declare.
1316         * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
1317         _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
1318         _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
1319         _ZGTtdaPvRKSt9nothrow_t): Export.
1320
1321 2009-07-18  Richard Henderson  <rth@redhat.com>
1322
1323         * target_tls.h: Move ...
1324         * config/posix/target_tls.h: ... here.
1325
1326 2009-07-07  Richard Henderson  <rth@redhat.com>
1327
1328         * config/x86/target.h (atomic_write_barrier): Use sfence if available.
1329
1330 2009-07-07  Richard Henderson  <rth@redhat.com>
1331
1332         * Update to GPL3.
1333
1334 2009-07-07  Richard Henderson  <rth@redhat.com>
1335
1336         * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
1337         * beginend.c (global_tid): Widen to _ITM_transactionId_t.
1338
1339         * configure.tgt: Don't use -ftls-model for x86 linux.
1340         * libitm.h: Include target.h after standard includes.
1341         (_gtm_thr): Rename from gtm_thr.
1342         (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
1343         (gtm_disp, set_gtm_disp): New.
1344         * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
1345         retry.c, serial.c, useraction.c: Use accessor functions throughout.
1346         * config/alpha/target_tls.h, config/x86/target_tls.h: New files.
1347
1348 2009-07-07  Richard Henderson  <rth@redhat.com>
1349
1350         * config/linux/rwlock.c (EZ): New define.  Use it throughout.
1351
1352 2009-07-06  Richard Henderson  <rth@redhat.com>
1353
1354         * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
1355         (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
1356         (_ITM_beginTransaction): Take variadic arguments.
1357         (_ITM_registerThrownObject): Declare.
1358         * beginend.c, serial.c: Update.
1359         * libitm.map: Add _ITM_registerThrownObject.
1360
1361 2009-01-28  Richard Henderson  <rth@redhat.com>
1362
1363         * Makefile.am (libitm_la_SOURCES): Add clone.c.
1364         * Makefile.in: Rebuild.
1365         * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
1366         (GTM_restart_transaction): Fix uninstrumented code check.
1367         * retry.c (GTM_decide_retry_strategy): Add serial check.
1368         * serial.c (GTM_serialmode): Add irrevokable variable.  Don't
1369         automatically go irrevokable when in serial mode.
1370         * clone.c: New file.
1371         * libitm.h, libitm.map: Update.
1372
1373 2009-01-27  Richard Henderson  <rth@redhat.com>
1374
1375         * Makefile.am (LTCCASCOMPILE): Define.
1376         (libitm_la_SOURCES): Add methid-wbetl.c.
1377         * testsuite/Makefile.am: New
1378         * configure.ac: Add testsuite/Makefile.
1379         * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
1380         * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
1381         (_ITM_abortTransaction): Finalize implementation method; pass
1382         transaction properties to longjmp.
1383         (GTM_restart_transaction): Split out from ...
1384         (_ITM_commitTransaction): ... here.
1385         * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
1386         Move to config/x86/target.h.
1387         * config/linux/alpha/futex_bits.h: New.
1388         * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
1389         * config/x86/target.h: Disable target types for 32-bit.
1390         * config/alpha/sjlj.S, config/alpha/target.h: New.
1391         * libitm.h (struct gtm_dispatch): Add init, fini.
1392         (enum restart_reason): New.
1393         (struct gtm_transaction): Add method and restarts.
1394         * retry.c (GTM_decide_retry_strategy): Implement.
1395         * serial.c (serial_init, serial_fini): New.
1396         (GTM_serialmode): Finialize outgoing method.
1397         * method-wbetl.c: New.
1398
1399 2008-12-09  Richard Henderson  <rth@redhat.com>
1400
1401         * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
1402         * configure.tgt (i386-*, x86_64-*): Don't force SSE.
1403         * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
1404         * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
1405         (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
1406         (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
1407         * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
1408         * serial.c (serial_R##T, serial_W##T): Likewise.
1409
1410 2008-11-21  Richard Henderson  <rth@redhat.com>
1411
1412         * Initial commit.