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* * config/linux/futex_bits.h: Include errno.h.jakub2014-03-261-1/+5
| | | | | | | | (sys_futex0): If syscall returns -1, return -errno rather than -1. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208855 138bc75d-0d04-0410-961f-82ee72b054a4
* Update copyright years in libitm/rsandifo2014-01-0211-11/+11
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206298 138bc75d-0d04-0410-961f-82ee72b054a4
* Add custom HTM fast path for RTM on x86_64.torvald2013-08-301-0/+5
| | | | | | | | | | | | | | | | | | * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202101 138bc75d-0d04-0410-961f-82ee72b054a4
* Update copyright in libitm.rsandifo2013-02-0311-11/+11
| | | | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195697 138bc75d-0d04-0410-961f-82ee72b054a4
* Add HTM fastpath and use Intel RTM for it on x86.torvald2012-11-091-1/+9
| | | | | | | | | | | | | | | | | | | * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@193369 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: Fix lost wake-up in serial lock.torvald2012-03-131-0/+26
| | | | | | | | PR libitm/52526 * config/linux/rwlock.cc (GTM::gtm_rwlock::read_lock): Fix lost wake-up. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@185358 138bc75d-0d04-0410-961f-82ee72b054a4
* * configure.tgt (target_cpu): Handle sparc and sparc64 & sparcv9.ebotcazou2012-02-131-0/+62
| | | | | | | | | | * config/sparc/cacheline.h: New file. * config/sparc/target.h: Likewise. * config/sparc/sjlj.S: Likewise. * config/linux/sparc/futex_bits.h: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@184177 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: Fix wake-up of readers in futex-based serial lock.torvald2012-01-241-3/+6
| | | | | | | | libitm/ * config/linux/rwlock.cc (GTM::gtm_rwlock::write_unlock): Fix reader wake-up. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@183488 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: PowerPC support.rth2012-01-051-0/+54
| | | | | | | | | | | | * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182930 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: Fix privatization safety during upgrades to serial mode.torvald2011-12-242-6/+15
| | | | | | | | | | | | | | | | | | libitm/ * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182675 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: Fixed conversion to C++11 atomics.torvald2011-12-248-54/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | libitm/ * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182674 138bc75d-0d04-0410-961f-82ee72b054a4
* * configure.tgt: Add sh* case.kkojima2011-12-171-0/+50
| | | | | | | | | | * config/sh/target.h: New file. * config/sh/sjlj.S: New file. * config/linux/sh/futex_bits.h: New file. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182429 138bc75d-0d04-0410-961f-82ee72b054a4
* arm-linux: Add libitm support.rth2011-12-153-2/+40
| | | | | | | | | | | | | | | | * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182355 138bc75d-0d04-0410-961f-82ee72b054a4
* libitm: Conversion to c++11 atomics.rth2011-12-131-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | * 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. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@182294 138bc75d-0d04-0410-961f-82ee72b054a4
* Merge from transactional-memory branch.aldyh2011-11-087-0/+665
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181154 138bc75d-0d04-0410-961f-82ee72b054a4
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