libitm/ChangeLog

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