rs6000.md (floor<mode>2): Add support for IEEE 128-bit round to integer instructions.

[official-gcc.git] / libitm / ChangeLog

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * Makefile.in: Regenerate.
        * acinclude.m4: Add enable.m4 and cet.m4.
        * config/x86/sjlj.S: Include cet.h.
        (_ITM_beginTransaction): Add _CET_ENDBR.
        Save Shadow Stack pointer.
        (GTM_longjmp): Add _CET_ENDBR. Restore Shadow Stack pointer.
        * config/x86/target.h (struct gtm_jmpbuf):
        Add new field for Shadow Stack pointer.
        * configure: Regenerate.
        * configure.ac: Set CET_FLAGS. Update XCFLAGS.
        * configure.ac: Update libtool_VERSION for x86.
        * testsuite/Makefile.in: Regenerate.

2017-11-17  Igor Tsimbalist  <igor.v.tsimbalist@intel.com>

        * libitm/config/x86/target.h: Add new field (ssp).
        * libitm/config/x86/sjlj.S: Change offsets.

2017-05-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * testsuite/lib/libitm.exp: Load scanlang.exp.

2017-04-03  Jonathan Wakely  <jwakely@redhat.com>

        * libitm_i.h (sutrct gtm_thread): Fix typo in comment.

2017-01-21  Jakub Jelinek  <jakub@redhat.com>

        PR other/79046
        * testsuite/Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead
        of cat to get version from BASE-VER file.
        * testsuite/Makefile.in: Regenerated.

2017-01-19  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (htm_available): Determine vendor from
        __get_cpuid_max return.  Use signature_INTEL_ebx.  Cleanup.

2017-01-18  Torvald Riegel  <triegel@redhat.com>

        * config/x86/target.h (htm_available): Add check for some processors
        on which TSX is broken.

2017-01-17  Jakub Jelinek  <jakub@redhat.com>

        PR other/79046
        * configure.ac: Add GCC_BASE_VER.
        * Makefile.am (gcc_version): Use @get_gcc_base_ver@ instead of cat to
        get version from BASE-VER file.
        * testsuite/Makefile.in: Regenerated.
        * configure: Regenerated.
        * Makefile.in: Regenerated.

2017-01-04  Alan Modra  <amodra@gmail.com>

        * Makefile.in: Regenerate.
        * testsuite/Makefile.in: Regenerate.

2017-01-01  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * libitm.texi: Bump @copying's copyright year.

2016-12-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Remove.
        * aclocal.m4: Regenerate.
        * configure.ac: Call GCC_CHECK_LINKER_HWCAP instead of
        LIBITM_CHECK_LINKER_HWCAP.

2016-11-15  Matthias Klose  <doko@ubuntu.com>

        * configure: Regenerate.

2016-04-19  H.J. Lu  <hongjiu.lu@intel.com>

        PR libitm/70456
        * util.cc (xmalloc): Use posix_memalign to allocate memory on
        on cache line if requested.

2016-03-03  Dominik Vogt  <vogt@linux.vnet.ibm.com>

        * config/s390/target.h (TARGET_BEGIN_TRANSACTION_ATTRIBUTE): Define
        function attribute to disable floating point in begin_transaction() on
        S/390.
        * beginend.cc (begin_transaction): Use
        TARGET_BEGIN_TRANSACTION_ATTRIBUTE.

2016-01-22  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::serial_lock): Put on cacheline
        boundary.
        (htm_fastpath): Remove.
        (gtm_thread::begin_transaction): Fix HTM fastpath.
        (_ITM_commitTransaction): Adapt.
        (_ITM_commitTransactionEH): Adapt.
        * libitm/config/linux/rwlock.h (gtm_rwlock): Add htm_fastpath member
        and accessors.
        * libitm/config/posix/rwlock.h (gtm_rwlock): Likewise.
        * libitm/config/posix/rwlock.cc (gtm_rwlock::gtm_rwlock): Adapt.
        * libitm/config/x86/sjlj.S (_ITM_beginTransaction): Fix HTM fastpath.
        * libitm/libitm_i.h (htm_fastpath): Remove declaration.
        * libitm/method-serial.cc (htm_mg): Adapt.
        (gtm_thread::serialirr_mode): Adapt.
        * libitm/query.cc (_ITM_inTransaction, _ITM_getTransactionId): Adapt.

2016-01-21  Torvald Riegel  <triegel@redhat.com>

        * testsuite/libitm.c++/libstdc++-safeexc.C: Not supported on darwin
        or AIX.

2016-01-19  Richard Henderson  <rth@redhat.com>

        PR bootstrap/69343
        PR bootstrap/69339
        Revert:
        2016-01-13  Richard Henderson  <rth@redhat.com>

        * Makefile.am (libitm_la_SOURCES) [ARCH_AARCH64]: Add vect128.cc
        (libitm_la_SOURCES) [ARCH_ARM]: Add neon.cc
        (libitm_la_SOURCES) [ARCH_PPC]: Add vect128.cc
        (libitm_la_SOURCES) [ARCH_S390]: Add vect128.cc
        * configure.ac (ARCH_AARCH64): New conditional.
        (ARCH_PPC, ARCH_S390): Likewise.
        * Makefile.in, configure: Rebuild.

        * libitm.h (_ITM_TYPE_M128): Always define.
        * vect64.cc: Split ...
        * vect128.cc: ... out of...
        * config/x86/x86_sse.cc: ... here.
        * config/arm/neon.cc: New file.

2016-01-19  Torvald Riegel  <triegel@redhat.com>

        * local_type_traits: Remove file.
        * libitm_i.h: Don't include it anymore.
        (sized_integral): Remove.

2016-01-16  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::trycommit): Ensure proxy privatization
        safety.
        * method-ml.cc (ml_wt_dispatch::trycommit): Likewise.
        * libitm/testsuite/libitm.c/priv-1.c: New.

2015-01-15  Torvald Riegel  <triegel@redhat.com>

        testsuite/libitm.c++/libstdc++-safeexc.C: New.

2016-01-13  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (gtm_thread::trycommit): Fix seq_cst fences.
        * config/linux/rwlock.cc (gtm_rwlock::write_lock_generic): Likewise.
        (gtm_rwlock::write_unlock): Likewise.

2016-01-13  Richard Henderson  <rth@redhat.com>

        * Makefile.am (libitm_la_SOURCES) [ARCH_AARCH64]: Add vect128.cc
        (libitm_la_SOURCES) [ARCH_ARM]: Add neon.cc
        (libitm_la_SOURCES) [ARCH_PPC]: Add vect128.cc
        (libitm_la_SOURCES) [ARCH_S390]: Add vect128.cc
        * configure.ac (ARCH_AARCH64): New conditional.
        (ARCH_PPC, ARCH_S390): Likewise.
        * Makefile.in, configure: Rebuild.

        * libitm.h (_ITM_TYPE_M128): Always define.
        * vect64.cc: Split ...
        * vect128.cc: ... out of...
        * config/x86/x86_sse.cc: ... here.
        * config/arm/neon.cc: New file.

2016-01-13  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (gtm_thread::trycommit): Fix privatization safety.
        * config/linux/rwlock.cc (gtm_rwlock::write_lock_generic): Likewise.
        * config/posix/rwlock.cc (gtm_rwlock::write_lock_generic): Likewise.
        * dispatch.h (abi_dispatch::snapshot_most_recent): New.
        * method-gl.cc (gl_wt_dispatch::snapshot_most_recent): New.
        * method-ml.cc (ml_wt_dispatch::snapshot_most_recent): New.
        * method-serial.cc (serial_dispatch::snapshot_most_recent): New.
        (serialirr_dispatch::snapshot_most_recent): New.
        (serialirr_onwrite_dispatch::snapshot_most_recent): New.

2016-01-12  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (gtm_mask_stack): Remove.
        * beginend.cc (gtm_stmlock_array, gtm_clock): Likewise.
        * stmlock.h: Remove file.
        * config/alpha/cacheline.h: Likewise.
        * config/generic/cacheline.h: Likewise.
        * config/powerpc/cacheline.h: Likewise.
        * config/sparc/cacheline.h: Likewise.
        * config/x86/cacheline.h: Likewise.

2016-01-04  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

        * libitm.texi: Bump @copying's copyright year.

2015-11-26  Torvald Riegel  <triegel@redhat.com>

        * method-ml.cc (ml_mg): Use multiplicative instead of simple hashing.
        (ml_wt_dispatch::pre_write): Adapt.
        (ml_wt_dispatch::pre_load): Likewise.

2015-11-22  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (gtm_alloc_action): Remove union.
        * testsuite/libitm.c/alloc-1.c: New.

2015-11-19  Torvald Riegel  <triegel@redhat.com>

        * testsuite/libitm.c++/eh-5.C: New.
        * libitm.h (_ITM_cxa_free_exception): New.
        * libitm.map (_ITM_cxa_free_exception): Add it.
        * libitm.texi: Update ABI docs.
        * libitm_i.h (gtm_transaction_cp::cxa_unthrown): Remove.
        (gtm_transaction_cp::cxa_uncaught_count): Add.
        (gtm_thread::cxa_unthrown): Remove.
        (gtm_thread::cxa_uncaught_count_ptr): Add.
        (gtm_thread::cxa_uncaught_count): Add.
        (gtm_thread::drop_references_allocations): Rename to...
        (gtm_thread::discard_allocation): ... this and adapt.
        (gtm_thread::init_cpp_exceptions): New.
        * beginend.cc (gtm_thread::gtm_thread): Adapt EH handling.
        (gtm_thread::begin_transaction): Likewise.
        (gtm_transaction_cp::save): Likewise.
        (gtm_thread::trycommit): Likewise.
        * eh_cpp.cc: Add overview comments.
        (__cxa_eh_globals, __cxa_get_globals, __cxa_free_exception): Declare.
        (free_any_exception, _ITM_cxa_free_exception): New.
        (gtm_thread::init_cpp_exceptions): Define.
        (_ITM_cxa_allocate_exception, _ITM_cxa_throw): Adapt.
        (_ITM_cxa_begin_catch, _ITM_cxa_end_catch): Likewise.
        (gtm_thread::revert_cpp_exceptions): Likewise.

2015-11-09  Torvald Riegel  <triegel@redhat.com>

        * alloc_cpp.cc (_ZdlPvX, _ZdlPvXRKSt9nothrow_t, _ZGTtdlPvX,
        _ZGTtdlPvXRKSt9nothrow_t, delsz_opnt): New.
        * libitm.map: Add _ZGTtdlPvX and _ZGTtdlPvXRKSt9nothrow_t.
        * libitm_i.h (gtm_alloc_action): Add free_fn_sz and sz.  Add comments.
        (gtm_thread::forget_allocations): New overload with size_t argument.
        * alloc.c (gtm_thread::forget_allocation): Define new overload and
        adapt existing one.
        (gtm_thread::record_allocation): Adapt.
        (gtm_thread::commit_allocations_1): Adapt.
        (gtm_thread::commit_allocations_2): Adapt.
        * testsuite/libitm.c++/newdelete.C: New.

2015-10-27  Daniel Jacobowitz  <dan@codesourcery.com>
            Joseph Myers  <joseph@codesourcery.com>
            Mark Shinwell  <shinwell@codesourcery.com>
            Andrew Stubbs  <ams@codesourcery.com>
            Rich Felker <dalias@libc.org>

        * config/sh/sjlj.S (_ITM_beginTransaction): Bypass PLT calling
        GTM_begin_transaction for compatibility with FDPIC.

2015-10-09  David Malcolm  <dmalcolm@redhat.com>

        * testsuite/lib/libitm.exp: Load multiline.exp before prune.exp,
        using load_gcc_lib.

2015-08-20  Gleb Fotengauer-Malinovskiy  <glebfm@altlinux.org>  (tiny change)

        PR libitm/61164
        * local_atomic (__always_inline): Rename to...
        (__libitm_always_inline): ... this.

2015-07-03  Carlos Sánchez de La Lama  <csanchezdll@gmail.com>

        PR target/52482
        * config/powerpc/sjlj.S: Port to Xcode 2.5.

2015-05-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/linux/x86/futex_bits.h (sys_futex0) [__x86_64__]: Change
        operands "op" and "val" to int.

2015-05-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/linux/sh/futex_bits.h (sys_futex0) Change operands
        "op" and "val" to int.

2015-05-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/linux/alpha/futex_bits.h (sys_futex0) Change operands
        "op" and "val" to int.

2015-05-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/linux/futex.cc (gtm_futex_wait, gtm_futex_wake):
        Declare as static int.
        (FUTEX_PRIVATE_FLAG): Remove L suffix.
        * config/linux/futex_bits.h (sys_futex0) Change operand "op" to int.

2015-05-27  Uros Bizjak  <ubizjak@gmail.com>

        * config/linux/x86/futex_bits.h (sys_futex0) [__PIC__]: Remove
        sys_futex0 function.

2015-05-13  Michael Haubenwallner  <michael.haubenwallner@ssi-schaefer.com>

        * Makefile.in: Regenerated with automake-1.11.6.
        * aclocal.m4: Likewise.
        * configure: Likewise.
        * testsuite/Makefile.in: Likewise.

2015-04-22  Gregor Richards  <gregor.richards@uwaterloo.ca>

        * config/arm/hwcap.cc: Use fcntl.h instead of sys/fcntl.h.
        * config/linux/x86/tls.h: Only use __GLIBC_PREREQ if defined.

2015-01-15  H.J. Lu  <hongjiu.lu@intel.com>

        PR libitm/64360
        * libitm.c/stackundo.c (test2): Make it static.
        (test1): Likewise.

2015-01-05  Jakub Jelinek  <jakub@redhat.com>

        Update copyright years.

2015-01-05  Jakub Jelinek  <jakub@redhat.com>

        * libitm.texi: Bump @copying's copyright year.

2014-12-12  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>

        * testsuite/lib/libitm.exp: Load target-utils.exp.
        Move load of target-supports.exp earlier.

2014-12-03  Uros Bizjak  <ubizjak@gmail.com>

        * configure.tgt (x86_64): Tune -m32 multilib to generic.

2014-11-21  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/63784
        * configure: Regenerated.

2014-11-11  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>

        PR target/63610
        * configure: Regenerate.

2014-10-06  Marek Polacek  <polacek@redhat.com>

        * testsuite/libitm.c/memcpy-1.c: Declare getpagesize.
        * testsuite/libitm.c/memset-1.c: Likewise.

2014-07-24  Richard Henderson  <rth@redhat.com>

        * config/aarch64/sjlj.S (_ITM_beginTransaction): Use post-inc
        addressing mode in epilogue.

2014-05-28  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (LIBITM_CHECK_LINKER_HWCAP): Check for
        -mclear-hwcap instead.
        * configure: Regenerate.
        * clearcap.map: Remove.

2014-05-21  John Marino  <gnugcc@marino.st>

        * configure.tgt (*-*-dragonfly*): New target.

2014-05-19  Richard Henderson  <rth@redhat.com>

        * config/aarch64/sjlj.S: New file.
        * config/aarch64/target.h: New file.
        * configure.tgt: Enable aarch64.

2014-04-09  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/generic/asmcfi.h: Also check for
        __GCC_HAVE_DWARF2_CFI_ASM.

2013-04-02  Richard Henderson  <rth@redhat.com>

        * config/alpha/target.h (PAGE_SIZE, FIXED_PAGE_SIZE): Remove.
        * config/arm/target.h, config/sh/target.h: Likewise.
        * config/sparc/target.h, config/x86/target.h: Likewise.

2014-03-26  Jakub Jelinek  <jakub@redhat.com>

        * config/linux/futex_bits.h: Include errno.h.
        (sys_futex0): If syscall returns -1, return -errno rather than
        -1.

2014-03-26  Joseph Myers  <joseph@codesourcery.com>

        * libitm.texi (Index): Rename to Library Index.

2014-01-13  H.J. Lu  <hongjiu.lu@intel.com>

        PR libitm/53113
        * Makefile.am (x86_sse.lo): Append -msse to CXXFLAGS.
        (x86_avx.lo): Append -mavx to CXXFLAGS.
        * Makefile.in: Regenerate.

2014-01-02  Richard Sandiford  <rdsandiford@googlemail.com>

        Update copyright years

2014-01-02  Tobias Burnus  <burnus@net-b.de>

        * libitm.texi: Bump @copying's copyright year.

2013-11-14  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>

        * config/powerpc/sjlj.S [__powerpc64__ && _CALL_ELF == 2]:
        (FUNC): Define ELFv2 variant.
        (END): Likewise.
        (HIDDEN): Likewise.
        (CALL): Likewise.
        (BASE): Likewise.
        (LR_SAVE): Likewise.

2013-09-20  Alan Modra  <amodra@gmail.com>

        * configure: Regenerate.

2013-08-30  Torvald Riegel  <triegel@redhat.com>

        * config/posix/rwlock.cc: Fix initialization order.

2013-08-30  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (gtm_thread): Assign an asm name to serial_lock.
        (htm_fastpath): Assign an asm name.
        * libitm.h (_ITM_codeProperties): Add non-ABI flags used by custom
        HTM fast paths.
        (_ITM_actions): Likewise.
        * config/x86/target.h (HTM_CUSTOM_FASTPATH): Enable custom fastpath on
        x86_64.
        * config/x86/sjlj.S (_ITM_beginTransaction): Add custom HTM fast path.
        * config/posix/rwlock.h (gtm_rwlock): Update comments.  Move summary
        field to the start of the structure.
        * config/linux/rwlock.h (gtm_rwlock): Update comments.
        * beginend.cc (gtm_thread::begin_transaction): Add retry policy
        handling for custom HTM fast paths.

2013-08-14  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
        Revert:
        2013-08-02  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * configure.tgt: Add -msoft-float to XCFLAGS.

2013-08-02  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * configure.tgt: Add -msoft-float to XCFLAGS.

2013-07-29  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/target.h (htm_begin, htm_commit, htm_abort)
        (htm_transaction_active): Enable zEC12 instructions in the
        assembler.
        * configure.tgt: Remove -Wa,-march=zEC12 from XCFLAGS.

2013-07-17  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * acinclude.m4: Add htm asm check for s390.
        * configure.tgt: Add -mhtm and -Wa,-march=zEC12 to the options.
        * configure: Regenerate.
        * config/s390/target.h: Remove __HTM__ check.
        (htm_available): Call getauxval to get hwcaps and check whether
        HTM is available or not.

2013-07-15  Peter Bergner  <bergner@vnet.ibm.com>

        * acinclude.m4 (LIBITM_CHECK_AS_HTM): New.
        * configure.ac: Use it.
        (AC_CHECK_HEADERS): Check for sys/auxv.h.
        (AC_CHECK_FUNCS): Check for getauxval.
        * config.h.in, configure: Rebuild.
        * configure.tgt (target_cpu): Add -mhtm to XCFLAGS.
        * config/powerpc/target.h: Include sys/auxv.h and htmintrin.h.
        (USE_HTM_FASTPATH): Define.
        (_TBEGIN_STARTED, _TBEGIN_INDETERMINATE, _TBEGIN_PERSISTENT,
        _HTM_RETRIES) New macros.
        (htm_abort, htm_abort_should_retry, htm_available, htm_begin, htm_init,
        htm_begin_success, htm_commit, htm_transaction_active): New functions.

2013-06-27  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/target.h: Include htmintrin.h.
        (_HTM_ITM_RETRIES): New macro definition.
        (htm_available, htm_init, htm_begin, htm_begin_success)
        (htm_commit, htm_abort, htm_abort_should_retry): New functions.

2013-06-20  Iain Sandoe  <iain@codesourcery.com>
            Cesar Philippidis  <cesar@codesourcery.com>

        * testsuite/lib/libitm.exp: Reorder lib loads into dependency order.
        Do not load_gcc_lib gcc-dg.exp and add a comment as to why.
        * testsuite/libitm.c/c.exp: load_gcc_lib gcc-dg.exp.
        * testsuite/libitm.c++/c++.exp: load_gcc_lib gcc-dg.exp.

2013-06-20  Torvald Riegel  <triegel@redhat.com>

        * query.cc (_ITM_inTransaction): Abort when using the HTM fastpath.
        (_ITM_getTransactionId): Same.
        * config/x86/target.h (htm_transaction_active): New.

2013-06-20  Torvald Riegel  <triegel@redhat.com>

        PR libitm/57643
        * beginend.cc (gtm_thread::begin_transaction): Handle reentrancy in
        the HTM fastpath.

2013-03-31  Gerald Pfeifer  <gerald@pfeifer.com>

        PR bootstrap/56714
        * local_atomic (__always_inline): Always define our version.
        (__calculate_memory_order): Mark inline.
        (atomic_thread_fence): Ditto.
        (atomic_signal_fence): Ditto.
        (atomic_bool::atomic_flag_test_and_set_explicit): Ditto.
        (atomic_bool::atomic_flag_clear_explicit): Ditto.
        (atomic_bool::atomic_flag_test_and_set): Ditto.
        (atomic_bool::atomic_flag_clear): Ditto.

2013-04-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

        * config/s390/sjlj.S: New file.
        * config/s390/target.h: New file.
        * configure.tgt: Set options for S/390.

2013-03-23  Andi Kleen  <ak@linux.intel.com>

        * local_atomic (__always_inline): Add.
        (__calculate_memory_order, atomic_thread_fence,
         atomic_signal_fence, test_and_set, clear, store, load,
         exchange, compare_exchange_weak, compare_exchange_strong,
         fetch_add, fetch_sub, fetch_and, fetch_or, fetch_xor):
        Add __always_inline to force inlining.

2013-02-11  Iain Sandoe  <iain@codesourcery.com>
            Jack Howarth  <howarth@bromo.med.uc.edu>
            Patrick Marlier  <patrick.marlier@gmail.com>

        PR libitm/55693
        * alloc_cpp.cc: Enable function declarations on darwin.
        * eh_cpp.cc: Likewise.

2013-02-03  Richard Sandiford  <rdsandiford@googlemail.com>

        Update copyright years.

2012-11-09  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (htm_fastpath): New.
        (gtm_thread::begin_transaction, _ITM_commitTransaction,
        _ITM_commitTransactionEH): Add HTM fastpath handling.
        * config/linux/rwlock.h (gtm_rwlock.is_write_locked): New.
        * config/posix/rwlock.h (gtm_rwlock.is_write_locked): New.
        * config/x86/target.h (htm_available, htm_init, htm_begin_success,
        htm_begin, htm_commit, htm_abort, htm_abort_should_retry): New.
        * configure.tgt: Add -mrtm to XCFLAGS.
        * method-serial.cc (htm_mg, o_htm_mg, htm_dispatch, dispatch_htm): New.
        (gtm_thread::serialirr_mode): Add HTM fastpath handling.
        * libitm_i.h (htm_fastpath, dispatch_htm): Declare.
        * retry.cc (parse_default_method): Add HTM method parsing.
        (gtm_thread::number_of_threads_changed): Use HTM by default if
        available.

2012-11-04  Thomas Schwinge  <thomas@codesourcery.com>

        * configure: Regenerate.

2012-10-31  Richard Henderson  <rth@redhat.com>

        * acinclude.m4 (LIBITM_CHECK_AS_RTM): New.
        * configure.ac: Use it.
        * config.h.in, configure: Rebuild.
        * testsuite/Makefile.in: Rebuild.

2012-10-24  Torvald Riegel  <triegel@redhat.com>

        * libitm.texi: Clarify ABI requirements for data-logging functions.

2012-10-24  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (gtm_thread::decide_begin_dispatch): Ask dispatch whether
        it requires serial mode instead of assuming that for certain
        dispatchs.
        * dispatch.h (abi_dispatch::requires_serial): New.
        (abi_dispatch::abi_dispatch): Adapt.
        * method-gl.cc (gl_wt_dispatch::gl_wt_dispatch): Adapt.
        * method-ml.cc (ml_wt_dispatch::ml_wt_dispatch): Same.
        * method-serial.cc (serialirr_dispatch::serialirr_dispatch,
        serial_dispatch::serial_dispatch,
        serialirr_onwrite_dispatch::serialirr_onwrite_dispatch): Same.

2012-10-02  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (struct gtm_jmpbuf): Merge x86_64
        and ia32 declarations some more.
        * config/x86/sjlj.S (_ITM_beginTransaction): Move ret to common code.

2012-09-20  Jakub Jelinek  <jakub@redhat.com>

        PR other/43620
        * configure.ac (AM_INIT_AUTOMAKE): Add no-dist.
        * configure: Regenerate.
        * Makefile.in: Regenerate.

2012-09-14  David Edelsohn  <dje.gcc@gmail.com>

        * configure: Regenerated.

2012-07-31  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (cpu_relax): Use __builtin_ia32_pause.

2012-05-21  Patrick Marlier  <patrick.marlier@gmail.com>

        * eh_cpp.cc: Fix __cxa_end_catch declaration.

2012-05-16  H.J. Lu  <hongjiu.lu@intel.com>

        * configure: Regenerated.

2012-04-04  H.J. Lu  <hongjiu.lu@intel.com>

        PR libitm/52854
        * config/x86/target.h (gtm_jmpbuf): Replace long with long long
        for x86-64.

2012-04-03  Tristan Gingold  <gingold@adacore.com>

        * configure: Regenerate.

2012-03-31  H.J. Lu  <hongjiu.lu@intel.com>

        PR bootstrap/52812
        * configure.tgt (i[456]86-*-linux*): Handle -mx32 like -m64.

2012-03-16  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

        * testsuite/lib/libitm.exp: load fortran-modules.exp

2012-03-14  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.tgt (*-*-irix6*): Remove.

2012-03-13  Torvald Riegel  <triegel@redhat.com>

        PR libitm/52526
        * config/linux/rwlock.cc (GTM::gtm_rwlock::read_lock): Fix lost
        wake-up.

2012-03-12  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.tgt (*-*-osf*): Remove.
        * configure: Regenerate.

2012-03-05  Torvald Riegel  <triegel@redhat.com>

        * dispatch.h (CREATE_DISPATCH_METHODS_MEM): Don't execute
        memtransfer/memset if size isn't larger than zero.

2012-03-02  Torvald Riegel  <triegel@redhat.com>

        * libitm.texi: Link to specification and add a usage example.

2012-02-24  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (GTM::gtm_thread::number_of_threads_changed): Change
        default dispatch for more than 1 thread to ml_wt.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::orec): Put on separate cacheline.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::rollback): Optimize memory orders.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::trycommit): Remove handling of
        serial mode corner cases made obsolete by prior gtm_rwlock changes.
        (gl_wt_dispatch.rollback): Same.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::pre_write): Optimize memory orders.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * method-gl.cc (gl_wt_dispatch::memtransfer_static): Add missing undo
        for RfW src.  Optimize number of calls to gtm_thr.

2012-02-20  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::begin_transaction): Move serial lock
        acquisition to ...
        * retry.cc (GTM::gtm_thread::decide_begin_dispatch): ... here.
        (default_dispatch): Make atomic.
        (GTM::gtm_thread::set_default_dispatch): Access atomically.
        (GTM::gtm_thread::decide_retry_strategy): Access atomically and
        use decide_begin_dispatch() if default_dispatch might have changed.
        (GTM::gtm_thread::number_of_threads_changed): Initialize
        default_dispatch here.

2012-02-15  Iain Sandoe  <iains@gcc.gnu.org>
            Patrick Marlier  <patrick.marlier@gmail.com>

        PR libitm/52220
        * alloc_cpp.cc: No dummy definitions for darwin.
        * eh_cpp.cc: Likewise.

2012-02-14  Richard Henderson  <rth@redhat.com>

        * config/x86/target.h (GTM_longjmp): Correct the .cfi corrections.

2012-02-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (GTM_longjmp): Correct .cfi directives.

2012-02-14  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (GTM::gtm_rwlog_entry): New.
        (GTM::gtm_thread): Add read and write logs.
        (GTM::dispatch_ml_wt): Declare.
        * retry.cc (parse_default_method): Support ml_wt.
        * method-ml.cc: New file.
        * Makefile.am: Add method-ml.cc.
        * Makefile.in: Regenerate.

2012-02-14  Torvald Riegel  <triegel@redhat.com>

        * dispatch.h (GTM::abi_dispatch::supports): New.
        (GTM::method_group::reinit): New.
        * retry.cc (GTM::gtm_thread::decide_retry_strategy): Use reinit().
        (GTM::gtm_thread::number_of_threads_changed): Check that the method
        supports the current situation.

2012-02-14  Torvald Riegel  <triegel@redhat.com>

        * util.cc (GTM::xcalloc): New.
        * common.h (GTM::xcalloc): Declare.

2012-02-14  Eric Botcazou  <ebotcazou@adacore.com>

        * config/sparc/target.h (cpu_relax): Read from CC register.
        * config/sparc/sjlj.S (GTM_longjmp): Restore %fp atomically.

2012-02-14  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (GTM_longjmp): Jump indirect from memory address.

2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>

        * configure.tgt (target_cpu): Handle sparc and sparc64/sparcv9.
        * config/sparc/cacheline.h: New file.
        * config/sparc/target.h: Likewise.
        * config/sparc/sjlj.S: Likewise.
        * config/linux/sparc/futex_bits.h: Likewise.

2012-02-13  Eric Botcazou  <ebotcazou@adacore.com>

        * configure.ac (link_itm): Fix comment.
        * configure: Regenerate.
        * testsuite/lib/libitm.exp: Do not pass -litm for the link.

2012-01-31  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR libitm/51822
        * testsuite/libitm.c++/c++.exp (lang_link_flags): Add -shared-libgcc.
        Correct libgomp references.

2012-01-24  Torvald Riegel  <triegel@redhat.com>

        * config/linux/rwlock.cc (GTM::gtm_rwlock::write_unlock): Fix reader
        wake-up.

2012-01-24  Uros Bizjak  <ubizjak@gmail.com>

        * config/x86/target.h (gtm_jmpbuf) [__x86_64__]: Move rip to the
        end of structure.
        * config/x86/sjlj.S (_ITM_beginTransaction) [__x86_64__]: Update
        offset values.  Do not copy return address.  Decrement stack
        by 56 bytes only.
        (GTM_longjump) [__x86_64__]: Update offset values.

2012-01-23  Uros Bizjak  <ubizjak@gmail.com>

        PR libitm/51830
        * config/x86/sjlj.S (_ITM_beginTransaction) [!__x86_64__]: Load
        the first function argument to %eax.

2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * libitm.h (_ITM_getThreadnum): Remove.
        * libitm.map (_ITM_getThreadnum): Remove from LIBITM_1.0.

2012-01-23  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * clearcap.map: New file.
        * acinclude.m4 (LIBITM_CHECK_LINKER_HWCAP): New test.
        * configure.ac: Call it.
        Clear HWCAP_LDFLAGS if defaulting to -mavx.
        * Makefile.am (AM_LDFLAGS): Add $(HWCAP_LDFLAGS)
        * configure: Regenerate.
        * Makefile.in: Regenerate.
        * testsuite/Makefile.in: Regenerate.

2012-01-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        PR libitm/51173
        * testsuite/libitm.c++/static_ctor.C: Skip test, note PR, remove
        include, exclude options.

2012-01-14  Torvald Riegel  <triegel@redhat.com>

        * local.cc (GTM::gtm_undolog::rollback): Truncate undo log after
        rolling back.
        * containers.h (GTM::vector::set_size): New.

2012-01-14  Torvald Riegel  <triegel@redhat.com>

        PR libitm/51855
        * config/generic/tls.h (GTM::mask_stack_top): New.
        (GTM::mask_stack_bottom): Declare.
        * config/generic/tls.c (GTM::mask_stack_bottom): New.
        * local.cc (gtm_undolog::rollback): Filter out any updates that
        overlap the libitm stack.  Add current transaction as parameter.
        * libitm_i.h (GTM::gtm_undolog::rollback): Adapt.
        * beginend.cc (GTM::gtm_thread::rollback): Adapt.
        * testsuite/libitm.c/stackundo.c: New test.

2012-01-10  Richard Henderson  <rth@redhat.com>

        * libitm_i.h (_Unwind_DeleteException): Declare weak.
        * eh_cpp.cc (_Unwind_DeleteException): Define for
        !HAVE_ELF_STYLE_WEAKREF.

2012-01-08  Torvald Riegel  <triegel@redhat.com>

        * local.cc (GTM_LB): Use GTM::gtm_undolog.
        (GTM::gtm_thread::drop_references_undolog): Remove.
        (GTM::gtm_thread::commit_undolog,
        GTM::gtm_thread::rollback_undolog): Move to ...
        * libitm_i.h (GTM::gtm_undolog): ...here. New.
        (GTM::gtm_undolog_entry): Remove.
        (GTM::gtm_thread): Adapt.
        * beginend.cc (GTM::gtm_thread::rollback): Adapt.
        (GTM::gtm_thread::trycommit): Adapt.
        * method-serial.cc (serial_dispatch::log): Adapt.
        * method-gl.cc (gl_wt_dispatch::pre_write): Adapt.
        (gl_wt_dispatch::store): Fix likely/unlikely.
        * containers.h (GTM::vector::resize): Add additional_capacity
        parameter and handle it.
        (GTM::vector::resize_noinline): New/adapt.
        (GTM::vector::push): New.

2012-01-06  Richard Henderson  <rth@redhat.com>

        * configure.tgt: Support powerpc-linux and powerpc-darwin.
        * config/linux/powerpc/futex_bits.h: New file.
        * config/powerpc/cacheline.h: New file.
        * config/powerpc/sjlj.S: New file.
        * config/powerpc/target.h: New file.
        * config/generic/asmcfi.h (cfi_offset): New.
        (cfi_restore, cfi_undefined): New.

2012-01-05  Aldy Hernandez  <aldyh@redhat.com>

        PR other/51171
        * testsuite/libitm.c/reentrant.c: Remove xfail.
        (thread): Pass x to pure().
        From Patrik Marlier <patrick.marlier@gmail.com>.

2011-12-24  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::trycommit): Don't enforce
        privatization safety if already in serial mode.

2011-12-24  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::restart): Add and handle
        finish_serial_upgrade parameter.
        * libitm.h (GTM::gtm_thread::restart): Adapt declaration.
        * config/linux/rwlock.cc (GTM::gtm_rwlock::write_lock_generic):
        Don't unset reader flag.
        (GTM::gtm_rwlock::write_upgrade_finish): New.
        * config/posix/rwlock.cc: Same.
        * config/linux/rwlock.h (GTM::gtm_rwlock::write_upgrade_finish):
        Declare.
        * config/posix/rwlock.h: Same.
        * method-serial.cc (GTM::gtm_thread::serialirr_mode): Unset reader
        flag after commit or after rollback when restarting.

2011-12-24  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::begin_transaction): Add comment.
        (GTM::gtm_thread::try_commit): Changed memory order.
        * config/linux/alpha/futex_bits.h (sys_futex0): Take atomic int
        as parameter.
        * config/linux/x86/futex_bits.h (sys_futex0): Same.
        * config/linux/sh/futex_bits.h (sys_futex0): Same.
        * config/linux/futex_bits.h (sys_futex0): Same.
        * config/linux/futex.cc (futex_wait, futex_wake): Same.
        * config/linux/futex.h (futex_wait, futex_wake): Same.
        * config/linux/rwlock.h (gtm_rwlock::writers,
        gtm_rwlock::writer_readers, gtm_rwlock::readers): Change to atomic
        ints.
        * config/linux/rwlock.cc (gtm_rwlock::read_lock,
        gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
        gtm_rwlock::write_unlock): Fix memory orders and fences.
        * config/posix/rwlock.cc (gtm_rwlock::read_lock,
        gtm_rwlock::write_lock_generic, gtm_rwlock::read_unlock,
        gtm_rwlock::write_unlock): Same.
        * config/linux/rwlock.h (gtm_rwlock::summary): Change to atomic int.
        * method-gl.cc (gl_mg::init, gl_wt_dispatch::memtransfer_static,
        gl_wt_dispatch::memset_static, gl_wt_dispatch::begin_or_restart):
        Add comments.
        (gl_wt_dispatch::pre_write, gl_wt_dispatch::validate,
        gl_wt_dispatch::load, gl_wt_dispatch::store,
        gl_wt_dispatch::try_commit, gl_wt_dispatch::rollback): Fix memory
        orders and fences.  Add comments.

2011-12-21  Jakub Jelinek  <jakub@redhat.com>

        * Makefile.am (AM_CXXFLAGS): Put $(XCFLAGS) first.
        * Makefile.in: Regenerated.

2011-12-17  Kaz Kojima  <kkojima@gcc.gnu.org>

        * configure.tgt: Add sh* case.
        * config/sh/target.h: New file.
        * config/sh/sjlj.S: New file.
        * config/linux/sh/futex_bits.h: New file.

2011-12-14  Richard Henderson  <rth@redhat.com>

        * config/arm/hwcap.h, config/arm/hwcap.cc: New files.
        * config/arm/sjlj.S, config/arm/target.h: New files.
        * config/generic/asmcfi.h (cfi_adjust_cfa_offset): New.
        (cfi_rel_offset): New.
        * config/linux/futex_bits.h: New file.
        * config/linux/futex.cc: Include futex_bits.h here...
        * config/linux/futex.h: ... not here.
        * Makefile.am (libitm_la_SOURCES) <ARCH_ARM>: Add hwcap.cc.
        * configure.ac (ARCH_AM): New conditional.
        * Makefile.in, configure: Rebuild.
        * configure.tgt: Handle ARM.

2011-12-13  Richard Henderson  <rth@redhat.com>

        * config/posix/rwlock.cc (gtm_rwlock::write_lock_generic): Fix
        signed/unsigned comparison werror.

        * local_atomic: New file.
        * libitm_i.h: Include it.
        (gtm_thread::shared_state): Use atomic template.
        * beginend.cc (GTM::gtm_clock): Use atomic template.
        (global_tid): Use atomic template if 64-bit atomics available.
        (gtm_thread::gtm_thread): Update shared_state access.
        (gtm_thread::trycommit): Likewise.
        (choose_code_path): Update global_tid access.
        * method-gl.cc (gl_mg::orec): Use atomic template.  Update all users.
        * stmlock.h (GTM::gtm_clock): Use atomic template.
        (gtm_get_clock, gtm_inc_clock): Update accesses.
        * config/linux/rwlock.cc (gtm_rwlock::read_lock): Remove
        redundant __sync_synchronize after atomic shared_state access.
        * config/posix/rwlock.cc (gtm_rwlock::read_lock): Likewise.
        (gtm_rwlock::write_lock_generic): Likewise.
        (gtm_rwlock::read_unlock): Likewise.
        * config/alpha/target.h (atomic_read_barrier): Remove.
        (atomic_write_barrier): Remove.
        * config/x86/target.h (atomic_read_barrier): Remove.
        (atomic_write_barrier): Remove.

2011-11-30  Richard Henderson  <rth@redhat.com>

        * libitm_i.h (GTM_longjmp): Swap first and second arguments.
        * beginend.c (_ITM_abortTransaction): Update to match.
        (GTM::gtm_thread::restart): Likewise.
        * config/alpha/sjlj.S (GTM_longjmp): Likewise.
        * config/x86/sjlj.S (GTM_longjmp): Likewise.

2011-11-23  Iain Sandoe  <iains@gcc.gnu.org>

        * Makefile.am (libitm_la_LDFLAGS): Remove "-no-undefined".
        * Makefile.in: Regenerate.

2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>

        * configure.ac: Use GCC_CHECK_ELF_STYLE_WEAKREF.
        * alloc_cpp.cc: Generate dummy functions if we don't
        HAVE_ELF_STYLE_WEAKREF.
        * eh_cpp.cc: Likewise.
        * configure: Regenerate.
        * aclocal.m4:  Likewise.
        * config.h.in: Likewise.
        * Makefile.in: Likewise.
        * testsuite/Makefile.in: Likewise.

2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>

        * config/x86/sjlj.S (CONCAT1, CONCAT2, SYM): Respond to
        __USER_LABEL_PREFIX__ for targets that use it.
        (TYPE, SIZE, HIDDEN): New macros to assist on non-elf targets.
        (_ITM_beginTransaction): Use SYM, TYPE, SIZE macros to assist
        in portability to non-elf targets.
        (GTM_longjmp): Likewise.
        * libitm_i.h (begin_transaction): Apply __USER_LABEL_PREFIX__
        where required.

2011-11-22  Iain Sandoe  <iains@gcc.gnu.org>

        * testsuite/libitm.c/memcpy-1.c: Allow for MAP_ANON spelling.
        * testsuite/libitm.c/memset-1.c: Likewise.

2011-11-21  Andreas Tobler  <andreast@fgznet.ch>

        * configure: Regenerate.

2011-11-21  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * acinclude.m4 (LIBITM_CHECK_LINKER_FEATURES): Handle gold.
        (LIBITM_ENABLE_SYMVERS): Handle sun style.
        * Makefile.am: Handle sun style versioning.
        (libitm_la_LINK): Add $(libitm_la_LDFLAGS).
        * configure: Regenerate.
        * Makefile.in: Regenerate.

2011-11-18  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/generic/asmcfi.h: Fix comment.
        * config/x86/sjlj.S (_ITM_beginTransaction): Provide ELF PIC code
        sequence without .hidden support, error for non-ELF targets.
        (GTM_longjmp) [__ELF__]: Only use .hidden if
        HAVE_ATTRIBUTE_VISIBILITY.

2011-11-17  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * alloc_cpp.cc [__osf__] (_ZnwX, _ZdlPv, _ZnaX, _ZdaPv,
        _ZnwXRKSt9nothrow_t, _ZdlPvRKSt9nothrow_t, _ZdaPvRKSt9nothrow_t):
        Dummy functions.
        * eh_cpp.cc [__osf__] (__cxa_allocate_exception, __cxa_throw,
        __cxa_begin_catch, __cxa_end_catch, __cxa_tm_cleanup): Likewise.

2011-11-16  Uros Bizjak  <ubizjak@gmail.com>

        PR bootstrap/51098
        * acinclude.m4 (LIBITM_CHECK_AS_AVX): Fix target selector.
        * configure: Regenerate.

2011-11-14  H.J. Lu  <hongjiu.lu@intel.com>

        * testsuite/lib/libitm.exp: Check ia32 instead of ilp32.

2011-11-10  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * config/alpha/sjlj.S (_ITM_beginTransaction) [!__ELF__]: Don't use
        .hidden.
        (.note.GNU-stack): Only use if __linux__.
        * alloc_cpp.cc [!__osf__] (_ZnaXRKSt9nothrow_t): Dummy function.
        * testsuite/libitm.c/notx.c: Use dg-options "-pthread".
        * testsuite/libitm.c/reentrant.c: Likewise.
        * testsuite/libitm.c/simple-2.c: Likewise.
        * testsuite/libitm.c/txrelease.c: Likewise.
        * testsuite/libitm.c++/static_ctor.C: Likewise.

2011-11-10  Richard Henderson  <rth@redhat.com>

        * config/x86/x86_avx.cc: Remove #undef __AVX__ hack.  Tidy comments.
        * Makefile.am (x86_avx.lo): Only add -mavx if ARCH_X86_AVX.
        * configure.ac (ARCH_X86_AVX): New conditional.
        * Makefile.in, configure: Rebuild.

2011-11-09  Richard Henderson  <rth@redhat.com>

        * acinclude.m4 (LIBITM_CHECK_AS_AVX): New.
        * configure.ac: Use it.
        * config.h.in, configure: Rebuild.
        * config/x86/x86_avx.cc: Handle !HAVE_AS_AVX.

2011-11-09  Richard Henderson  <rth@redhat.com>

        * barrier.tpl, memcpy.cc, memset.cc, method-wbetl.cc: Remove file.
        * config/alpha/unaligned.h: Remove file.
        * config/generic/unaligned.h: Remove file.
        * config/x86/unaligned.h: Remove file.
        * config/generic/cachepage.h: Remove file.
        * config/posix/cachepage.cc: Remove file.
        * config/generic/cacheline.cc: Remove file.
        * config/x86/cacheline.cc: Remove file.
        * config/generic/cacheline.h (gtm_cacheline): Remove the
        store_mask, copy_mask, copy_mask_wb methods.
        * config/x86/cacheline.h: Likewise.
        * config/alpha/cacheline.h: Fall back to generic after setting size.
        * config/generic/tls.cc (gtm_mask_stack): Remove.
        * config/x86/x86_avx.cc (GTM_vpperm_shift): Remove.
        (GTM_vpalignr_table): Remove.
        * config/x86/x86_sse.cc (GTM_palignr_table): Remove.
        (GTM_pshift_table): Remove.
        * config/libitm_i.h: Don't include cachepage.h.
        * Makefile.am (libitm_la_SOURCES): Remove cacheline.cc, cachepage.cc
        * Makefile.in, testsuite/Makefile.in: Rebuild.

2011-11-09  Richard Henderson  <rth@redhat.com>

        * config/x86/cacheline.h (gtm_cacheline::store_mask): Use .byte
        to emit branch prediction hint.

        * config/x86/sjlj.S: Protect elf directives with __ELF__.
        Protect .note.GNU-stack with __linux__.

        * configure.ac (GCC_AS_CFI_PSEUDO_OP): Test it.
        * configure, aclocal.m4, config.h.in: Rebuild.
        * config/generic/asmcfi.h: New file.
        * config/x86/sjlj.S: Use it.

2011-11-08  Richard Henderson  <rth@redhat.com>

        * local.cc (_ITM_LB): Use a normal call, not a function alias.

2011-11-08  Richard Henderson  <rth@redhat.com>

        * configure.tgt: Test correct directory for supported cpus.

        * configure.ac: Exit if unsupported.
        * configure: Rebuild.
        * configure.tgt: Delete boilerplate from libgomp for unsupported
        targets.  Set UNSUPPORTED for unsupported targets.

2011-11-08  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

        * configure.tgt: Handle i386 like i[456]86.
        * config/generic/tls.h [!HAVE_ARCH_GTM_THREAD] (gtm_thr): Don't
        take address.
        * config/generic/tls.cc [!HAVE_ARCH_GTM_THREAD ||
        !HAVE_ARCH_GTM_THREAD_DISP] (_gtm_thr_tls): New variable.

2011-11-05  Aldy Hernandez  <aldyh@redhat.com>

        * method-wbetl.cc: Update copyright notice.
        * aatree.cc: Same.
        * util.cc: Same.
        * libitm.h: Same.
        * memset.cc: Same.
        * eh_cpp.cc: Same.
        * barrier.tpl: Same.
        * useraction.cc: Same.
        * stmlock.h: Same.
        * memcpy.cc: Same.
        * common.h: Same.
        * config/generic/tls.cc: Same.
        * config/generic/cacheline.h: Same.
        * config/generic/cachepage.h: Same.
        * config/generic/cacheline.cc: Same.
        * config/generic/unaligned.h: Same.
        * config/x86/cacheline.h: Same.
        * config/x86/cacheline.cc: Same.
        * config/x86/unaligned.h: Same.
        * config/alpha/cacheline.h: Same.
        * config/alpha/unaligned.h: Same.
        * config/alpha/sjlj.S: Same.
        * config/posix/cachepage.cc: Same.
        * config/linux/futex.h: Same.
        * config/linux/alpha/futex_bits.h: Same.

2011-11-04  Torvald Riegel  <triegel@redhat.com>

        * libitm.texi: No cover text and invariant sections.

2011-11-03  Richard Henderson  <rth@redhat.com>

        * local_type_traits: New file.
        * libitm_i.h: Use it.  Use C headers, not C++ wrappers.

2011-11-03  Richard Henderson  <rth@redhat.com>

        * configure.ac: Don't test for gfortran.
        * configure: Rebuild.

        * testsuite/lib/libitm.exp: Don't include gfortran-dg.exp.
        * testsuite/libitm.c++/c++.exp: Don't use gfortran-dg-runtest.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

        * testsuite/libitm.c/memcpy-1.c: Add copyright notice.
        * testsuite/libitm.c/memset-1.c: Same.
        * testsuite/libitm.c/c.exp: Same.
        * testsuite/lib/libitm-dg.exp: Same.
        * testsuite/lib/libitm.exp: Same.
        * testsuite/libitm.c++/c++.exp: Same.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

        * testsuite/config/default.exp: Update copyright date.
        * configure.ac: Add copyright info.
        * configure.tgt: Same.

2011-11-03  Aldy Hernandez  <aldyh@redhat.com>

        * testsuite/libitm.c/reentrant.c: XFAIL.
        * testsuite/libitm.c++/static_ctor.C: XFAIL.

2011-10-29  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::rollback): Add aborting flag and
        handle aborts.
        (_ITM_abortTransaction): Handle aborts of outer transactions.
        * libitm_i.h: Same.
        * eh_cpp.cc (GTM::gtm_thread::revert_cpp_exceptions): Fix assertion.
        * libitm.texi: Document aborts of outer transactions.
        * testsuite/libitm.c/cancel.c: New file.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * testsuite/*: Change __transaction to __transaction_atomic or
        __transaction_relaxed.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * config/linux/x86/tls.h (abi_disp): Make TLS slot read volatile.
        (gtm_thr): Same.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h: Add gl_wt dispatch.
        * retry.cc (parse_default_method): Same.
        * method-gl.cc: New file.
        * Makefile.am: Use method-gl.cc.
        * Makefile.in: Rebuild.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_thread::trycommit): Ensure privatization
        safety if requested by a TM method.
        * dispatch.h (GTM::abi_dispatch::trycommit): Add parameter for
        privatization safety.
        * method-serial.cc: Same.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h: Renamed gtm_local_undo to gtm_undolog_entry.
        (GTM::gtm_thread): Renamed local_undo to undolog. Renamed
        undolog-related member functions from *_local to *_undolog.
        * local.cc (gtm_thread::commit_undolog): Same.
        * beginend.cc (GTM::gtm_thread::trycommit): Same.
        (GTM::gtm_thread::rollback): Roll back undolog before
        dispatch-specific rollback.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (GTM::gtm_thread::decide_retry_strategy): Handle
        re-initialization of the current method group.
        * libitm_i.h (GTM::gtm_restart_reason): Add restart reason for this.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * alloc.cc (commit_allocations_2): Do not free transaction-local
        memory when committing a nested transaction.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * method-serial.cc (GTM::gtm_thread::serialirr_mode): Fixed: Use
        serial-irrevocable dispatch, not serial.

2011-10-19  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (GTM::gtm_restart_reason): Re-arrange and clean up
        declarations.
        * dispatch.h (GTM::abi_dispatch::begin_or_restart): New.
        * method-serial.cc: Implement begin_or_restart().
        * beginend.cc (GTM::gtm_thread::begin_transaction): Call
        dispatch-specific begin_or_restart().
        (GTM::gtm_thread::restart): Same.

2011-08-23  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (GTM::gtm_thread::decide_retry_strategy): Cleanup. Fix
        restarting without switching to serial mode.
        (GTM::gtm_thread::decide_begin_dispatch): Let the caller set the
        transaction state. Choose closed-nesting alternative if available.
        (GTM::gtm_thread::set_default_dispatch): New.
        (parse_default_method): New.
        (GTM::gtm_thread::number_of_threads_changed): New.
        * method-serial.cc (GTM::serial_mg): New method group class.
        (GTM::serialirr_dispatch): Belongs to serial_mg. Remove reinit and
        fini.
        (GTM::serial_dispatch): Same.
        (GTM::serialirr_onwrite_dispatch): Same.
        (GTM::gtm_thread::serialirr_mode): Remove calls to fini.
        * beginend.cc (GTM::gtm_thread::~gtm_thread): Maintain number of
        registered threads.
        (GTM::gtm_thread::gtm_thread): Same.
        (_ITM_abortTransaction): Remove calls to abi_dispatch::fini().
        (GTM::gtm_thread::trycommit): Same. Reset number of restarts.
        (GTM::gtm_thread::begin_transaction): Let decide_begin_dispatch()
        choose dispatch but set state according to dispatch here.
        * dispatch.h (GTM::abi_dispatch::fini): Move to method group.
        (GTM::method_group): New class.
        (GTM::abi_dispatch): Add comments. Maintain pointer to method_group.
        * libitm_i.h (GTM::gtm_thread): Add declarations for new members.
        * libitm.texi: Document TM methods, method groups, method life cycle.
        Rename method sets to method groups.

2011-08-23  Torvald Riegel  <triegel@redhat.com>

        * config/x86/tls.h: Moved to ...
        * config/linux/x86/tls.h: ... here.

2011-08-23  Torvald Riegel  <triegel@redhat.com>

        * config/x86/tls.h: Use __x86_64__ instead of __LP64__.
        Add X32 support.
        * config/x86/sjlj.S: Same.

2011-08-19  Torvald Riegel  <triegel@redhat.com>

        * config/linux/rwlock.h: New file.
        * config/linux/rwlock.c: New file.
        * configure.ac: Reenable futex support (undo SVN rev 157758).
        * Makefile.am: Same.
        * configure.tgt: Same.
        * config/linux/alpha/futex_bits.h: Same.
        * config/linux/futex.h: Same. Return number of woken processes.
        * config/linux/futex.cc: Same.
        (futex_wait): Remove spinning.
        * config/linux/x86/futex_bits.h: Same. Set futex timeout to zero.
        Use __x86_64__ instead of __LP64__.
        * aclocal.m4: Include generic futex checks.
        * configure: Rebuild.
        * Makefile.in: Rebuild.
        * testsuite/Makefile.in: Rebuild.
        * beginend.cc: Include pthread.h.
        * config/posix/cachepage.cc: Same.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * config/x86/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
        (abi_disp, set_abi_disp): Move to tx's TLS slot.
        (set_gtm_thr): New.
        * config/generic/tls.h (gtm_tx, set_gtm_tx, setup_gtm_thr): Removed.
        (set_gtm_thr): New.
        (GTM::gtm_thread::thread_num): Removed.
        (GTM::gtm_thread): Renamed to GTM::gtm_thread_tls.
        * libitm_i.h (GTM::gtm_transaction): Renamed to GTM::gtm_thread. More
        tx-to-thread renaming.
        * beginend.cc: Adapted to tx-to-thread renaming.
        (GTM::gtm_thread::~gtm_thread): Extracted from thread_exit_handler().
        (GTM::gtm_thread::gtm_thread): Extracted from begin_transaction().
        * query.cc (_ITM_getTransactionId, _ITM_inTransaction): Renamed
        gtm_transaction to gtm_thread.
        (_ITM_getThreadnum): Removed. Not supported anymore.
        * testsuite/libitm.c/notx.c (main): Removed _ITM_getThreadnum call.
        * libitm.texi: Documented that _ITM_getThreadnum is not supported.
        * useraction.cc: Renamed gtm_transaction to gtm_thread. Adapted to
        gtm_tx-to-gtm_thr renaming if necessary.
        * eh_cpp.cc: Same.
        * local.cc: Same.
        * retry.cc: Same.
        * clone.cc: Same.
        * alloc.cc: Same.
        * alloc_c.cc: Same.
        * alloc_cpp.cc: Same.
        * method-serial.cc: Same.
        * config/generic/tls.cc: Same.
        * config/posix/rwlock.h (gtm_rwlock): Same.
        * config/posix/rwlock.cc: Same. Adapted to more tx-to-thread renaming.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * config/posix/rwlock.cc (gtm_rwlock::read_lock): Changed locking
        implementation.
        (gtm_rwlock::read_unlock): Same.
        (gtm_rwlock::write_lock_generic): New. Generalized from ...
        (gtm_rwlock::write_lock, gtm_rwlock::write_upgrade): ... these.
        * libitm_i.h (GTM::gtm_transaction): Added shared_state.
        * config/posix/rwlock.h (GTM::gtm_rwlock): Removed a_reader and
        w_upgrade. Replaced by per-transaction flags (in shared_state).
        Added c_confirmed_writers.
        (GTM::gtm_rwlock::read_lock, GTM::gtm_rwlock::read_unlock,
        GTM::gtm_rwlock::write_upgrade): Add tx parameter.
        * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.
        * method-serial.cc (GTM::gtm_transaction::serialirr_mode): Same.
        * beginend.cc (GTM::gtm_transaction::begin_transaction,
        _ITM_abortTransaction, GTM::gtm_transaction::trycommit): Same.
        * libitm.texi: Document locking conventions and implementations in
        libitm.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (next_tx): Add list of all threads' transaction.
        * beginend.cc (GTM::gtm_transaction::begin_transaction): Register
        transaction with list of transactions and ...
        (thread_exit_handler): ... deregister here.
        * config/alpha/target.h: Add HW_CACHELINE_SIZE setting.
        * config/x86/target.h: Same.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * testsuite/libitm.c++/static_ctor.C: New file.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * testsuite/libitm.c/reentrant.c: New file.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * config/generic/tls.h: Remove the free list for transactions and ...
        * beginend.cc (GTM::gtm_transaction::operator new): ... allocate ...
        (GTM::gtm_transaction::operator delete): ... and release here.
        (thread_exit_handler): New. Delete tx when thread terminates.
        (thread_exit_init): New.
        (GTM::gtm_transaction::begin_transaction): Set up on-exit handler.
        * testsuite/libitm.c/txrelease.c: New file.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * query.cc (_ITM_getThreadnum): Set up gtm_thread if necessary.
        * testsuite/libitm.c/notx.c: New file.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * config/generic/tls.h (gtm_thread): Move local_tid from here ...
        * libitm_i.h (local_tid): ... to here.
        * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.
        (GTM::gtm_transaction::operator new): Set up gtm_thread if necessary.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Use
        serialirr_onwrite_dispatch as new default for now.
        * method-serial.cc (serialirr_onwrite_dispatch): New.
        (GTM::dispatch_serialirr_onwrite): New.
        * libitm_i.h: Same.

2011-08-12  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_transaction::rollback): Roll back tx id as well.
        * query.cc (_ITM_getTransactionId): There is no active transaction if
        the current nesting level is zero.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * beginend.cc (GTM::gtm_transaction::rollback): Fix nesting level
        rollback.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * retry.cc (GTM::gtm_transaction::decide_begin_dispatch): Get
        transaction properties from the caller instead of from the
        transaction object.
        * libitm_i.h: Same.
        * beginend.cc (GTM::gtm_transaction::begin_transaction): Same.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * local.cc (gtm_transaction::rollback_local): Support closed nesting.
        * eh_cpp.cc (GTM::gtm_transaction::revert_cpp_exceptions): Same.
        * dispatch.h: Same.
        * method-serial.cc: Same.
        * beginend.cc (GTM::gtm_transaction::begin_transaction): Change to
        flat nesting as default, and closed nesting on demand.
        (GTM::gtm_transaction::rollback): Same.
        (_ITM_abortTransaction): Same.
        (GTM::gtm_transaction::restart): Same.
        (GTM::gtm_transaction::trycommit): Same.
        (GTM::gtm_transaction::trycommit_and_finalize): Removed.
        (choose_code_path): New.
        (GTM::gtm_transaction_cp::save): New.
        (GTM::gtm_transaction_cp::commit): New.
        * query.cc (_ITM_inTransaction): Support flat nesting.
        * libitm_i.h (GTM::gtm_transaction_cp): New helper struct for nesting.
        (GTM::gtm_transaction): Support flat and closed nesting.
        * alloc.cc (commit_allocations_2): New.
        (commit_cb_data): New helper struct.
        (GTM::gtm_transaction::commit_allocations): Handle nested
        commits/rollbacks.
        * libitm.texi: Update user action section, add description of nesting.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h: Add closed nesting as restart reason.
        * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Same.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * useraction.cc: Use vector instead of list to store actions.
        Also support partial rollbacks for closed nesting.
        * libitm_i.h (GTM::gtm_transaction::user_action): Same.
        * beginend.cc: Same.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * dispatch.h (GTM::abi_dispatch): Add can_run_uninstrumented_code and
        closed_nesting flags, as well as a closed nesting alternative.
        * method-serial.cc: Same.
        (serial_dispatch): Renamed to serialirr_dispatch.
        (GTM::dispatch_serialirr): Same.
        (serial_dispatch_ul): Renamed to serial_dispatch.
        (GTM::dispatch_serial): Same.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * libitm.h (_ITM_codeProperties): Change pr_hasElse to the ABI's value.

2011-07-28  Torvald Riegel  <triegel@redhat.com>

        * aatree.h (aa_tree::remove): New.
        (aa_tree::operator new): Add placement new.

2011-07-02  Torvald Riegel  <triegel@redhat.com>

        * containers.h: New file.
        * util.cc (xmalloc, xrealloc): Accept cacheline-alloc flag.
        * libitm_i.h (xmalloc, xrealloc): Moved declarations from here ...
        * common.h: ... to here.
        (local_undo): Use GTM::vector for gtm_transaction::local_undo.
        * local.cc: Same.

2011-06-30  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h (STATE_ABORTING): Remove.
        * beginend.cc (_ITM_abortTransaction): Same.
        (GTM::gtm_transaction::trycommit_and_finalize): Same.
        * libitm.h (_ITM_registerThrownObject, _ITM_tryCommitTransaction): Remove.
        (_ITM_rollbackTransaction): Remove.
        * beginend.cc: Same.
        * libitm.map: Same.
        * libitm.texi: Document these ABI changes.

2011-06-30  Torvald Riegel  <triegel@redhat.com>

        * libitm.texi: New file.
        * Makefile.am: Add libitm.texi.
        * Makefile.in: Rebuild.

2011-06-30  Torvald Riegel  <triegel@redhat.com>

        * libitm_i.h: Move parts to common.h and dispatch.h.
        * common.h: New file.
        * dispatch.h: New file, new dispatch class.
        Rename GTM::abi_dispatch::lock_type to ls_modifier.
        RenameGTM::abi_dispatch::NOLOCK to NONTXNAL.
        * beginend.cc (GTM::gtm_transaction::begin_transaction): Delegate mode
        decision to retry.cc.
        * retry.cc (GTM::gtm_transaction::decide_retry_strategy): Use serial mode
        only.
        (GTM::gtm_transaction::decide_begin_dispatch): Same.
        * method-serial.cc: Adapt to new dispatch. Add serial mode with undo
        logging.
        * barrier.cc: Use new barriers definitions.
        (abi_dispatch::memmove_overlap_check): New.
        * config/x86/x86_sse.cc: Same.
        * config/x86/x86_avx.cc: Same.
        * Makefile.am: Don't build readonly and wbetl methods, memset.cc and
        memcpy.cc.
        * Makefile.in: Rebuild.
        * method-readonly.cc: Remove.
        * method-wbetl.cc: Rename GTM::abi_dispatch::lock_type to ls_modifier.
        Rename GTM::abi_dispatch::NOLOCK to NONTXNAL.

2011-06-30  Torvald Riegel  <triegel@redhat.com>

        * alloc_c.cc (_ITM_dropReferences): Don't support it anymore.
        * testsuite/libitm.c++/dropref.C: _ITM_dropReferences is expected to fail.
        * testsuite/libitm.c/dropref-2.c: Same.
        * testsuite/libitm.c/dropref.c: Same.

2011-06-30  Torvald Riegel  <triegel@redhat.com>

        * config/generic/tls.h (gtm_disp): Rename to abi_disp.
        * config/generic/tls.h (set_gtm_disp): Rename to set_abi_disp.
        * libitm_i.h: Rename gtm_dispatch to abi_dispatch.
        * alloc_c.cc: Same.
        * barrier.tpl: Same.
        * beginend.c: Same.
        * config/generic/tls.h: Same.
        * config/x86/tls.h: Same.
        * libitm_i.h: Same.
        * memcpy.cc: Same.
        * memset.cc: Same.
        * method-readonly.cc: Same.
        * method-serial.cc: Same.
        * method-wbetl.cc: Same.
        * retry.cc: Same.

2011-03-03  Richard Henderson  <rth@redhat.com>

        * config/posix/rwlock.cc (write_upgrade): Add missing case.
        From Patrik Marlier <patrick.marlier@unine.ch>.

2011-02-03  Richard Henderson  <rth@redhat.com>

        * acinclude.m4 (LIBITM_CHECK_SIZE_T_MANGLING): New.
        * configure.ac: Use it.
        * configure, config.h.in: Rebuild.
        * alloc_cpp.cc (_ZnwX): Use MANGLE_SIZE_T in constructing the name.
        (_ZnaX, _ZnwXRKSt9nothrow_t, _ZnaXRKSt9nothrow_t, _ZGTtnwX,
        _ZGTtnaX, _ZGTtnwXRKSt9nothrow_t, _ZGTtnaXRKSt9nothrow_t): Likewise.
        * libitm.map: Use wildcards to match size_t mangling.

2010-12-14  Richard Henderson  <rth@redhat.com>

        * beginend.cc (GTM::gtm_transaction::begin_transaction): Allocate
        blocks of TIDs per thread.
        * config/generic/tls.h (struct gtm_thread): Add local_tid member.
        (setup_gtm_thr): Return the thread structure.
        * config/x86/tls.h (setup_gtm_thr): Likewise.

2010-12-14  Richard Henderson  <rth@redhat.com>

        * clone.cc (table_lock): Remove.
        (find_clone): Don't take it.
        (ExcludeTransaction): New helper class.
        (_ITM_registerTMCloneTable): Use it.
        (_ITM_deregisterTMCloneTable): Likewise.

2010-12-14  Richard Henderson  <rth@redhat.com>

        * config/x86/tls.h: New file.

2010-07-15  Richard Henderson  <rth@redhat.com>

        * Makefile.am (AM_CXXFLAGS): Add -funwind-tables.
        * Makefile.in: Rebuild.

2010-07-13  Aldy Hernandez  <aldyh@redhat.com>

        * method-wbetl.cc (trydropreference): Fix source line.

2010-07-13  Aldy Hernandez  <aldyh@redhat.com>

        * libitm.h: Add comment.
        * libitm_i.h (begin_transaction): Add ITM_REGPARM.

2010-07-07  Aldy Hernandez  <aldyh@redhat.com>

        * configure.ac: Call LIBITM_CHECK_64BIT_SYNC_BUILTINS.
        * beginend.cc (begin_transaction): If 64-bit sync builtins are not
        available, use pthread mutexes.
        * acinclude.m4 (LIBITM_CHECK_64BIT_SYNC_BUILTINS): New.
        * config.h.in: Regenerate.
        * configure: Regenerate.

2010-07-06  Aldy Hernandez  <aldyh@redhat.com>

        * libitm.h (ITM_PURE): Define.
        Declare _ITM_malloc, _ITM_calloc, and _ITM_free.

2010-06-28  Aldy Hernandez  <aldyh@redhat.com>

        * method-wbetl.cc (class wbetl_dispatch): Add trydropreference.
        (validate): Add comment.
        (trydropreference): New.
        * method-readonly.cc (class readonly_dispatch): Add
        trydropreference.
        * alloc_c.cc (_ITM_dropReferences): Remove const attribute.
        Call trydropreference().
        * libitm.h (_ITM_dropReferences): Remove const attribute.
        * method-serial.cc (class serial_dispatch): Add trydropreference.
        * libitm_i.h (struct gtm_dispatch): Add trydropreference.

2010-06-28  Aldy Hernandez  <aldyh@redhat.com>

        * memcpy.cc (do_memcpy): Comment.

2010-06-25  Aldy Hernandez  <aldyh@redhat.com>

        * barrier.tpl: Add comments throughout.

2010-06-24  Aldy Hernandez  <aldyh@redhat.com>

        * method-wbetl.cc (struct w_entry): Add comments.
        (trycommit): Same.
        (rollback): Same.

2010-06-24  Aldy Hernandez  <aldyh@redhat.com>

        * alloc_c.cc (_ITM_dropReferences): New.
        * libitm.map (_ITM_dropReferences): Add.
        * libitm.h (_ITM_dropReferences): Add transaction_pure attribute.
        * libitm_i.h (struct gtm_transaction): Declare
        drop_references_allocations and drop_references_local.
        * local.cc (rollback_local): Ignore memory when applicable.
        (drop_references_local): New.

2010-06-23  Richard Henderson  <rth@redhat.com>

        * barrier.tpl, beginend.cc, clone.cc, tls.h, memcpy.cc,
        memset.cc, method-serial.cc: Revert the 2010-06-16 change.
        * config/x86/target.h (struct gtm_jmpbuf): Change CFA type to void*.
        * config/alpha/target.h: Likewise.
        * config/generic/tls.cc (gtm_mask_stack): Use it.

2010-06-23  Richard Henderson  <rth@redhat.com>

        * config/posix/cachepage.cc (gtm_cacheline_page::operator new): Use
        a mutex instead of trying a lock-free compare-and-swap on the list.
        (gtm_cacheline_page::operator delete): Likewise.

2010-06-16  Richard Henderson  <rth@redhat.com>

        * method-wbetl.cc (wbetl_dispatch::trycommit): Discard changes
        that overlap the libitm stack.
        * barrier.tpl: Mark incoming stack.
        * beginend.cc (_ITM_rollbackTransaction, _ITM_abortTransaction,
        _ITM_commitTransaction, _ITM_commitTransactionEH): Likewise.
        * clone.cc (_ITM_getTMCloneOrIrrevocable): Likewise.
        * memcpy.cc, memset.cc: Likewise.
        * method-serial.cc (_ITM_changeTransactionMode): Likewise.
        * config/generic/tls.h (gtm_thread): Add stack_top member.
        (gtm_stack_top, set_gtm_stack_top, struct gtm_stack_marker): New.
        * libitm_i.h (gtm_mask_stack): Declare.
        * config/generic/tls.cc: New file.
        * Makefile.am (libitm_la_SOURCES): Add it.
        (AM_CXXFLAGS): Turn off exceptions.
        * Makefile.in: Rebuild.

2010-06-16  Richard Henderson  <rth@redhat.com>

        * alloc.cc (struct gtm_alloc_action): Move definition ...
        * libitm_i.h: ... here.
        (class gtm_transaction): Declare new and delete.
        * beginend.cc (alloc_tx): Reformulate as operator new.
        (free_tx): Reformulate as operator delete.
        * config/generic/tls.h (gtm_thread): Change free_tx member to void *.

2010-06-11  Richard Henderson  <rth@redhat.com>

        * clone.cc (clone_entry_compare): Fix typo.
        From Patrik Marlier <patrick.marlier@unine.ch>.

2010-05-13  Richard Henderson  <rth@redhat.com>

        * alloc_c.cc (_ITM_malloc, _ITM_calloc, _ITM_free): Wrap functions
        in extern "C".

2010-05-07  Aldy Hernandez  <aldyh@redhat.com>

        * libitm_i.h (struct gtm_transaction): Remove
        get_allocation_size.
        (record_allocation): Remove size parameter.
        * libitm.map (_ITM_realloc): Remove.
        * alloc_c.cc (_ITM_realloc): Remove.
        (_ITM_malloc): Remove size argument to record_allocation.
        (_ITM_calloc): Same.
        * alloc_cpp.cc (_ZGTtnwm): Same.
        (_ZGTtnwmRKSt9nothrow_t): Same.
        (_ZGTtnam): Same.
        (_ZGTtnamRKSt9nothrow_t): Same.
        * alloc.cc (struct gtm_alloc_action): Remove size.
        (get_allocation_size): Remove.
        (commit_allocations): Add comment.
        (record_allocation): Remove size parameter.
        (forget_allocation): Remove set of size.

2010-04-19  Aldy Hernandez  <aldyh@redhat.com>

        * Makefile.am (abi_version): New.
        (AM_CXXFLAGS): Pass abi_version.
        * Makefile.in: Regenerate.
        * config/x86/unaligned.h: Remove always_inline kludge for vectors.

2010-04-06  Aldy Hernandez  <aldyh@redhat.com>

        * clone.cc (_ITM_getTMCloneOrIrrevocable): Rename from
        _ITM_getTMCloneOrIrrevokable.
        * libitm.h (_ITM_getTMCloneOrIrrevocable): Same.
        * libitm.map (_ITM_getTMCloneOrIrrevocable): Same.

2010-03-26  Aldy Hernandez  <aldyh@redhat.com>

        * configure.ac: Remove Linux futex support.
        * configure.tgt (config_path): Same.
        * Makefile.am: Same.
        * config/linux: Remove entire directory.
        * configure: Rebuild.
        * Makefile.in: Rebuild.
        * testsuite/Makefile.in: Rebuild.

2010-03-09  Aldy Hernandez  <aldyh@redhat.com>

        * retry.cc (decide_retry_strategy): Set state to STATE_SERIAL when
        switching to serial mode.
        * beginend.cc (trycommit_and_finalize): Unlock serial_lock.

2010-03-03  Aldy Hernandez  <aldyh@redhat.com>

        * configure.tgt: Add emacs -*- tags.
        * barrier.tpl: Same.

2010-02-23  Aldy Hernandez  <aldyh@redhat.com>

        * Makefile.am: Rename serial.cc to method-serial.cc.
        * Makefile.in: Regenerate with automake 1.11.1.
        * testsuite/Makefile.in: Same.
        * aclocal.m4: Regenerate with aclocal 1.11.1.
        * method-serial.cc: Rename from serial.cc.
        * libitm_i.h (struct gtm_transaction): Update comment on
        serialirr_mode.

2010-02-22  Aldy Hernandez  <aldyh@redhat.com>

        * libitm_i.h (GTM_longjmp): Add ITM_REGPARM.
        * config/linux/rwlock.h (class gtm_rwlock): Add comments.

2010-02-11  Aldy Hernandez  <aldyh@redhat.com>

        * configure: Rebuild.

2009-11-12  Richard Henderson  <rth@redhat.com>

        * Rewrite everything in C++.

2009-11-03  Richard Henderson  <rth@redhat.com>

        * config/x86/x86_sse.c, config/x86/x86_avx.c: New files.
        * Makefile.am (libitm_la_SOURCES): Add them.
        * configure.ac (ARCH_X86): New conditional.
        * Makefile.in, configure: Rebuild.
        * configure.tgt: Set up ARCH; do cflags setup at the same time.
        Move futex setup into "other system configury" case.
        * local.c (rollback_local): Merge into ...
        (GTM_rollback_local): ... here.
        (GTM_LB): Rename from GTM_alloc_local; do the memcpy here.
        (_ITM_LB): Define as an alias to GTM_LB.

2009-11-03  Richard Henderson  <rth@redhat.com>

        * method-readonly.c: New file.
        * Makefile.am (libitm_la_SOURCES): Add it.
        * Makefile.in: Rebuild.
        * beginend.c (gtm_stmlock_array, gtm_clock): New.
        (GTM_begin_transaction): Use dispatch_readonly for read-only txn.
        * libitm_i.h (gtm_stmlock, gtm_version): Move from method-wbetl.c.
        (GTM_VERSION_MAX, GTM_VERSION_INVALID, gtm_stmlock_owned_p,
        gtm_stmlock_set_owned, gtm_stmlock_get_addr,
        gtm_stmlock_get_version, gtm_stmlock_set_version, LOCK_ARRAY_SIZE,
        gtm_stmlock_array, gtm_get_stmlock, gtm_clock, RESTART_NOT_READONLY,
        gtm_get_clock, gtm_inc_clock): New.
        * method-wbetl.c (gtm_version, gtm_stmlock, OWNED_MASK, VERSION_MAX,
        LOCK_GET_OWNED, LOCK_SET_ADDR, LOCK_GET_ADDR, LOCK_GET_TIMESTAMP,
        LOCK_SET_TIMESTAMP, LOCK_ARRAY_SIZE, LOCK_MASK, LOCK_IDX, GET_LOCK,
        locks, gclock, CLOCK, GET_CLOCK, FETCH_AND_INC_CLOCK): Remove and
        replace uses with new libitm_i.h symbols.
        (dispatch_wbetl): Rename from wbetl_dispatch.
        * retry.c (GTM_decide_retry_strategy): If RESTART_NOT_READONLY, move
        away from dispatch_readonly; abort if the beginTransaction call
        asserted that the transaction was readonly.

2009-11-03  Richard Henderson  <rth@redhat.com>

        * memset.c: New file.
        * Makefile.am (libitm_la_SOURCES): Add it.
        * Makefile.in: Rebuild.
        * testsuite/libitm.c/memset-1.c: New.

2009-11-03  Richard Henderson  <rth@redhat.com>

        * dispatch.c: Remove file.
        * useraction.c (struct gtm_user_action): Move from libitm.h.
        * serial.c (GTM_null_read_lock, GTM_null_write_lock): New.
        (serial_memset, serial_memmove, serial_memcpy): Remove.
        (serial_W*, serial_R*): Remove.
        (serial_dispatch): Update to match.
        * configure.ac: Move Werror down below configure checks.  Don't
        check for sys/loadavg.h, do check for malloc.h.  Don't check for
        getloadavg and clock_gettime; do check for memalign, posix_memalign.
        Use GCC_AC_FUNC_MMAP_BLACKLIST
        * libitm.h: Split out all internal items to...
        * libitm_i.h: ... here.  New file.
        * copymask.c: New file.
        * local.c (struct gtm_local_undo): Move from libitm.h.
        (GTM_alloc_local): Rename from alloc_local; export.
        * memcpy.c: New file.
        * alloc_c.c (_ITM_realloc): Use _ITM_memcpyRnWt directly.
        * config/posix/page.c: New file.
        * config/posix/target_tls.h: Remove file.
        * barrier.c: New file.
        * Makefile.am (libitm_la_SOURCES): Add barrier.c, memcpy.c,
        copymask.c, page.c.
        * alloc.c (struct gtm_alloc_action): Move from libitm.h.
        * method-wbetl.c: Rewrite for new cacheline methods.
        * Makefile.in, configure, testsuite/Makefile.in, config.h.in: Rebuild.

        * config/alpha/sjlj.S: Fix typo.
        * config/alpha/target_i.h: Copy functions from alpha/target.h.
        * config/alpha/copymask.c: New file.
        * config/alpha/target.h (CACHELINE_SIZE): New.
        (STRICT_ALIGNMENT, PAGE_SIZE, FIXED_PAGE_SIZE): New.

        * config/x86/target_i.h: Copy functions from x86/target.h.
        * config/x86/copymask.c: New file.
        * config/x86/target.h (_ITM_ALL_TARGET_TYPES): Remove.
        (CACHELINE_SIZE, STRICT_ALIGNMENT): New.
        (PAGE_SIZE, FIXED_PAGE_SIZE): New.
        * config/x86/target_tls.h: Move contents to target_i.h.

        * testsuite/libitm.c/clone-1.c: Include libitm.h.
        * testsuite/libitm.c/memcpy-1.c: New.

2009-10-22  Richard Henderson  <rth@redhat.com>

        * Makefile.am (CCAS, CCASFLAGS, LTCCASCOMPILE): Remove.
        (AM_CCASFLAGS): New.
        * configure.ac: Add AM_PROG_AS.  Use m4_rename_force for
        saving/restoring _AC_ARG_VAR_PRECIOUS.
        * Makefile.in, aclocal.m4, config.h.in, configure,
        testsuite/Makefile.in: Rebuild with automake 1.11; autoconf 2.64.

2009-10-22  Richard Henderson  <rth@redhat.com>

        * testsuite/*: Update for new compiler syntax.

2009-10-21  Richard Henderson  <rth@redhat.com>

        * libitm.h (_ITM_abortReason): Add outerAbort.

2009-08-03  Richard Henderson  <rth@redhat.com>

        * libitm.map (_ITM_commitTransactionEH, _ITM_cxa_allocate_exception,
        _ITM_cxa_begin_catch, _ITM_cxa_end_catch, _ITM_cxa_throw): Export.
        * method-wbetl.c (struct w_entry): Remove mask.
        (wbetl_write, wbetl_load): Return pointer to word containing the data;
        adjust all callers.

2009-07-22  Richard Henderson  <rth@redhat.com>

        * eh_cpp.c: New file.
        * Makefile.am (libitm_la_SOURCES): Add it.
        * Makefile.in: Rebuild.
        * beginend.c (GTM_rollback_transaction): Undo exception state.
        (GTM_trycommit_transaction): Mark inline.
        (GTM_trycommit_and_finalize_transaction): Split out from ...
        (_ITM_commitTransaction): ... here.
        (_ITM_commitTransactionEH): New function.
        * libitm.h (struct gtm_transaction): Add cxa_catch_count,
        cxa_unthrown, eh_in_flight; reorder.

        * testsuite/libitm.c++/c++.exp: New.
        * testsuite/libitm.c++/eh-1.C: New.

        * aatree.c (aa_free): Remove REGPARM.
        * aatree.h: Remove all REGPARM.

2009-07-18  Richard Henderson  <rth@redhat.com>

        * aatree.c, aatree.h, alloc.c, alloc_c.c, alloc_cpp.c: New files.
        * Makefile.am (libitm_la_SOURCES): Add them.
        * Makefile.in: Rebuild.
        * beginend.c (GTM_rollback_transaction): Use GTM_commit_allocations.
        (GTM_trycommit_transaction): Likewise.
        * libitm.h: Include aatree.h
        (struct gtm_alloc_action): New.
        (struct gtm_transaction): Add alloc_actions.
        (GTM_record_allocation, GTM_forget_allocation): Declare.
        (GTM_get_allocation_size, GTM_commit_allocations): Declare.
        * libitm.map (_ITM_malloc, _ITM_calloc, _ITM_realloc, _ITM_free,
        _ZGTtnwm, _ZGTtnam, _ZGTtdlPv, _ZGTtdaPv, _ZGTtnwmRKSt9nothrow_t,
        _ZGTtnamRKSt9nothrow_t, _ZGTtdlPvRKSt9nothrow_t,
        _ZGTtdaPvRKSt9nothrow_t): Export.

2009-07-18  Richard Henderson  <rth@redhat.com>

        * target_tls.h: Move ...
        * config/posix/target_tls.h: ... here.

2009-07-07  Richard Henderson  <rth@redhat.com>

        * config/x86/target.h (atomic_write_barrier): Use sfence if available.

2009-07-07  Richard Henderson  <rth@redhat.com>

        * Update to GPL3.

2009-07-07  Richard Henderson  <rth@redhat.com>

        * libitm.h (struct gtm_transaction): Widen id to _ITM_transactionId_t.
        * beginend.c (global_tid): Widen to _ITM_transactionId_t.

        * configure.tgt: Don't use -ftls-model for x86 linux.
        * libitm.h: Include target.h after standard includes.
        (_gtm_thr): Rename from gtm_thr.
        (setup_gtm_thr, gtm_thr, gtm_tx, set_gtm_tx): New.
        (gtm_disp, set_gtm_disp): New.
        * beginend.c, dispatch.c, local.c, method-wbetl.c, query.c,
        retry.c, serial.c, useraction.c: Use accessor functions throughout.
        * config/alpha/target_tls.h, config/x86/target_tls.h: New files.

2009-07-07  Richard Henderson  <rth@redhat.com>

        * config/linux/rwlock.c (EZ): New define.  Use it throughout.

2009-07-06  Richard Henderson  <rth@redhat.com>

        * libitm.h (_ITM_SRCLOCATION_DECL_1, _ITM_SRCLOCATION_DECL_2): Remove.
        (_ITM_SRCLOCATION_DEFN_1, _ITM_SRCLOCATION_DEFN_2): Remove.
        (_ITM_beginTransaction): Take variadic arguments.
        (_ITM_registerThrownObject): Declare.
        * beginend.c, serial.c: Update.
        * libitm.map: Add _ITM_registerThrownObject.

2009-01-28  Richard Henderson  <rth@redhat.com>

        * Makefile.am (libitm_la_SOURCES): Add clone.c.
        * Makefile.in: Rebuild.
        * beginend.c (_ITM_abortTransaction): Abort if irrevokable.
        (GTM_restart_transaction): Fix uninstrumented code check.
        * retry.c (GTM_decide_retry_strategy): Add serial check.
        * serial.c (GTM_serialmode): Add irrevokable variable.  Don't
        automatically go irrevokable when in serial mode.
        * clone.c: New file.
        * libitm.h, libitm.map: Update.

2009-01-27  Richard Henderson  <rth@redhat.com>

        * Makefile.am (LTCCASCOMPILE): Define.
        (libitm_la_SOURCES): Add methid-wbetl.c.
        * testsuite/Makefile.am: New
        * configure.ac: Add testsuite/Makefile.
        * Makefile.in, testsuite/Makefile.in, configure: Regenerate.
        * beginend.c (GTM_begin_transaction): Install wbetl_dispatch.
        (_ITM_abortTransaction): Finalize implementation method; pass
        transaction properties to longjmp.
        (GTM_restart_transaction): Split out from ...
        (_ITM_commitTransaction): ... here.
        * config/linux/x86/futex_bits.h (cpu_relax, atomic_write_barrier):
        Move to config/x86/target.h.
        * config/linux/alpha/futex_bits.h: New.
        * config/x86/sjlj.S (GTM_longjmp): Fix 64-bit input register.
        * config/x86/target.h: Disable target types for 32-bit.
        * config/alpha/sjlj.S, config/alpha/target.h: New.
        * libitm.h (struct gtm_dispatch): Add init, fini.
        (enum restart_reason): New.
        (struct gtm_transaction): Add method and restarts.
        * retry.c (GTM_decide_retry_strategy): Implement.
        * serial.c (serial_init, serial_fini): New.
        (GTM_serialmode): Finialize outgoing method.
        * method-wbetl.c: New.

2008-12-09  Richard Henderson  <rth@redhat.com>

        * config/x86/target.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): New.
        * configure.tgt (i386-*, x86_64-*): Don't force SSE.
        * dispatch.c (_ITM_##R##T, _ITM_##W##T): Use _ITM_TYPE_ATTR.
        * libitm.h (_ITM_ALL_TARGET_TYPES, _ITM_TYPE_ATTR): Provide default.
        (_ITM_TYPE_M64, _ITM_TYPE_M128, _ITM_TYPE_M256): Move to x86 header.
        (_ITM_ALL_TYPES): Use _ITM_ALL_TARGET_TYPES.
        * local.c (_ITM_L##T): Use _ITM_TYPE_ATTR.
        * serial.c (serial_R##T, serial_W##T): Likewise.

2008-11-21  Richard Henderson  <rth@redhat.com>

        * Initial commit.
\f
Copyright (C) 2008-2017 Free Software Foundation, Inc.

Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
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