libitm/ChangeLog

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