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* process.c: try to workaroun SEGV by r65994k0kubun2018-11-261-2/+2
| | | | | | | | | | | | | | | http://ci.rvm.jp/results/trunk-mjit-wait@silicon-docker/1480173 It tries to print C backtrace but fails. And core file on the server seems to be stopping on the irrelevant place due to its own signal handler for the dump. And I failed to reproduce this SEGV on my machine. I don't know why it's broken, so let me try this change to investigate the reason of SEGV. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65997 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: finish MJIT prior to #execk0kubun2018-11-261-0/+2
| | | | | | | | to prevent ruby from leaving MJIT-related files. test_jit.rb: add a test to prevent that git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65994 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* revert r65807k0kubun2018-11-191-2/+0
| | | | | | | | | it didn't work. http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468677 and skips broken tests for now. But this issue should be fixed soon. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65814 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h: resurrect --disable-mjit-supportk0kubun2018-11-191-0/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65809 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: do not run signal handler before forkk0kubun2018-11-191-0/+1
| | | | | | | | | | to prevent from proceeding one for MJIT while it's not safe yet. By that situation, MJIT worker could be waiting for compiler process forever http://ci.rvm.jp/results/trunk-mjit@silicon-docker/1468033 [Bug #15320] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65807 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c: avoid division by zeroshyouhei2018-11-121-0/+1
| | | | | | | same as r65642. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* suppress GCC warning about unknown sanitizersshyouhei2018-11-071-0/+10
| | | | | | | See also: https://travis-ci.org/ruby/ruby/jobs/451710726#L1941 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* workaround C++ism in ASAN header shyouhei2018-11-061-0/+4
| | | | | | | See also: https://travis-ci.org/ruby/ruby/jobs/451299690 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65576 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* cont.c: direct use of rb_thread_tshyouhei2018-11-061-1/+2
| | | | | | | | | | | The only usage of rb_fiber_reset_root_local_storage() is from ruby_vm_destruct(), where the object space is already terminated. This `th->self` is not alive. Why not just use `th` itself. See also: https://travis-ci.org/ruby/ruby/jobs/451294954 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65574 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* adopt sanitizer APIshyouhei2018-11-061-1/+55
| | | | | | | | These APIs are much like <valgrind/memcheck.h>. Use them to fine-grain annotate the usage of our memory. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65573 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* do not delete function declarations in case of non-sanitizing buildsshyouhei2018-11-061-1/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65565 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* annotate functions to blacklist MSANshyouhei2018-11-061-0/+4
| | | | | | | | | | | | In these functions we are intentionally reading memory address not owned by us. These reads should not be diagnosed. See also [Bug #8680] See also https://travis-ci.org/ruby/ruby/jobs/451202718 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65564 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Fixed compile error introduced at r65558usa2018-11-061-1/+1
| | | | | | | | * internal.h (ATTRIBUTE_NO_ADDRESS_SAFETY_ANALYSIS): of course, parens around function signature in its definition is syntax error. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65560 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* gc.c: move ASAN check to configureshyouhei2018-11-061-0/+14
| | | | | | | | | | | | | | Availability of attributes are checked in configure these days, rather than compiler macros. Also __attribute__((no_address_safety_analysis)) is considered deprecated in both GCC and Clang. Use the current best practice if available. See also: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html https://clang.llvm.org/docs/AddressSanitizer.html git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65558 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c: rb_dbl_complex_polar_pinobu2018-11-041-1/+1
| | | | | | | * complex.c (rb_dbl_complex_polar_pi): suffixed with _pi to clarify that `ang` is not radian, but multiplied by PI. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65522 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* expose `rb_ary_detransient`.ko12018-11-031-0/+3
| | | | | | | | * internal.h: expose `rb_ary_detransient`. I'm not sure why there are no many troubles without this patch... git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65515 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h: RHASH_ARRAY_SIZE_RAW value is unsignednobu2018-11-031-1/+1
| | | | | | and get rid of warnings. [ruby-core:89688] [Bug #15279] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65512 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* introduce USE_TRANSIENT_HEAP to enable/disable theap.ko12018-11-011-3/+38
| | | | | | | | * include/ruby/ruby.h: intrdocue `USE_TRANSIENT_HEAP` macro to enable/disable transient heap. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* fix type.ko12018-10-301-1/+1
| | | | | | | | | | | | | | | | * internal.h (RHASH_ARRAY_SIZE_RAW): should be `int` because it returns n<=8. * hash.c (RHASH_ARRAY_BOUND_RAW): ditto. * hash.c (RHASH_ARRAY_SIZE_RAW): remove a duplicated definition. * hash.c (linear_keys, linear_values): return `long`. * hash.c (linear_keys): fix initialize expression of `key_end`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65458 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* * remove trailing spaces, expand tabs.svn2018-10-301-2/+2
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* support theap for T_HASH. [Feature #14989]ko12018-10-301-13/+90
| | | | | | | | | | | | | | | | | * hash.c, internal.h: support theap for small Hash. Introduce RHASH_ARRAY (li_table) besides st_table and small Hash (<=8 entries) are managed by an array data structure. This array data can be managed by theap. If st_table is needed, then converting array data to st_table data. For st_table using code, we prepare "stlike" APIs which accepts hash value and are very similar to st_ APIs. This work is based on the GSoC achievement by tacinight <tacingiht@gmail.com> and refined by ko1. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65454 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* support theap for T_STRUCT.ko12018-10-301-0/+11
| | | | | | | * struct.c: members memory can use theap. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65452 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* support theap for T_OBJECT.ko12018-10-301-0/+3
| | | | | | | | | | * variable.c: now instance variable space has theap supports. obj_ivar_heap_alloc() tries to acquire memory from theap. * debug_counter.h: add some counters for theap. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65451 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* introduce TransientHeap. [Bug #14858]ko12018-10-301-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * transient_heap.c, transient_heap.h: implement TransientHeap (theap). theap is designed for Ruby's object system. theap is like Eden heap on generational GC terminology. theap allocation is very fast because it only needs to bump up pointer and deallocation is also fast because we don't do anything. However we need to evacuate (Copy GC terminology) if theap memory is long-lived. Evacuation logic is needed for each type. See [Bug #14858] for details. * array.c: Now, theap for T_ARRAY is supported. ary_heap_alloc() tries to allocate memory area from theap. If this trial sccesses, this array has theap ptr and RARRAY_TRANSIENT_FLAG is turned on. We don't need to free theap ptr. * ruby.h: RARRAY_CONST_PTR() returns malloc'ed memory area. It menas that if ary is allocated at theap, force evacuation to malloc'ed memory. It makes programs slow, but very compatible with current code because theap memory can be evacuated (theap memory will be recycled). If you want to get transient heap ptr, use RARRAY_CONST_PTR_TRANSIENT() instead of RARRAY_CONST_PTR(). If you can't understand when evacuation will occur, use RARRAY_CONST_PTR(). (re-commit of r65444) git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65449 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* revert r65444 and r65446 because of commit missko12018-10-301-27/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65447 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* support theap for T_OBJECT.ko12018-10-301-0/+3
| | | | | | | | | | * variable.c: now instance variable space has theap supports. obj_ivar_heap_alloc() tries to acquire memory from theap. * debug_counter.h: add some counters for theap. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65446 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* introduce TransientHeap. [Bug #14858]ko12018-10-301-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * transient_heap.c, transient_heap.h: implement TransientHeap (theap). theap is designed for Ruby's object system. theap is like Eden heap on generational GC terminology. theap allocation is very fast because it only needs to bump up pointer and deallocation is also fast because we don't do anything. However we need to evacuate (Copy GC terminology) if theap memory is long-lived. Evacuation logic is needed for each type. See [Bug #14858] for details. * array.c: Now, theap for T_ARRAY is supported. ary_heap_alloc() tries to allocate memory area from theap. If this trial sccesses, this array has theap ptr and RARRAY_TRANSIENT_FLAG is turned on. We don't need to free theap ptr. * ruby.h: RARRAY_CONST_PTR() returns malloc'ed memory area. It menas that if ary is allocated at theap, force evacuation to malloc'ed memory. It makes programs slow, but very compatible with current code because theap memory can be evacuated (theap memory will be recycled). If you want to get transient heap ptr, use RARRAY_CONST_PTR_TRANSIENT() instead of RARRAY_CONST_PTR(). If you can't understand when evacuation will occur, use RARRAY_CONST_PTR(). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65444 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: implement rb_f_system without toggling ruby_nocldwaitnormal2018-10-301-1/+2
| | | | | | | | | | | | | | | | | | | Following how mjit_worker.c currently works, rb_f_system now ensures the VM-wide waitpid lists is locked before creating a new process via fork/vfork. This ensures other rb_waitpid callers cannot steal work and there are no possible race conditions from toggling ruby_nocldwait without the use of atomics. This sets us up for implementing MJIT process management logic using normal Ruby APIs prepares us for VM-wide asynchronous/event-base waitpid which can allow MJIT to work without worker threads. Take 2: set waitpid_state.pid on platforms w/o fork. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65437 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* revert r65434normal2018-10-301-2/+1
| | | | | | | http://mswinci.japaneast.cloudapp.azure.com/vc12-x64/ruby-trunk/log/20181030T003541Z.fail.html.gz I have no chance of getting anything to work on proprietary platforms :< git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: implement rb_f_system without toggling ruby_nocldwaitnormal2018-10-291-1/+2
| | | | | | | | | | | | | | | | | Following how mjit_worker.c currently works, rb_f_system now ensures the VM-wide waitpid lists is locked before creating a new process via fork/vfork. This ensures other rb_waitpid callers cannot steal work and there are no possible race conditions from toggling ruby_nocldwait without the use of atomics. This sets us up for implementing MJIT process management logic using normal Ruby APIs prepares us for VM-wide asynchronous/event-base waitpid which can allow MJIT to work without worker threads. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* add disabling MJIT features option.ko12018-10-201-0/+7
| | | | | | | | | | | | | | | | | | | | * configure.ac: introduce new configure option `--enable-mjit` and `--disable-mjit`. Default is "enable". `--disable-mjit` disables all of MJIT features so that `ruby --jit` can't enable MJIT. This option affect a macro `USE_MJIT`. This change remove `--enable/disable-install-mjit-header` option. * Makefile.in: introduce the `ENABLE_MJIT` variable. * common.mk: use `ENABLE_MJIT` option. * internal.h: respect `USE_MJIT`. Same as other *.c, *.h. * test/ruby/test_jit.rb: check `ENABLE_MJIT` key of rbconfg.rb. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/coverage/: add the oneshot modemame2018-10-201-0/+2
| | | | | | | | | | | | This patch introduces "oneshot_lines" mode for `Coverage.start`, which checks "whether each line was executed at least once or not", instead of "how many times each line was executed". A hook for each line is fired at most once, and after it is fired, the hook flag was removed; it runs with zero overhead. See [Feature #15022] in detail. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65195 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c: small optimization of Complex#**nobu2018-10-201-0/+3
| | | | | | | | * complex.c (rb_complex_pow): calculate power of a Fixnum without allocating intermediate Complex objects, and avoid unexpected NaNs. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65190 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_core.h: fix inconsistent prototype declarationsk0kubun2018-10-071-2/+2
| | | | | | | | | | | | | | | like "error: static declaration of 'xxx' follows non-static declaration". r64940 is successfully built on mswin but not built on almost all other environments. internal.h: ditto include/ruby/intern.h: MJIT_STATIC is moved to this file since this file also needs to use this. mjit.h: MJIT_STATIC is moved from this. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Fix wrong use of BIGNUM_EMBED_LEN_NUMBITSnobu2018-10-031-2/+4
| | | | | | | | | * internal.h (BIGNUM_EMBED_LEN_SHIFT): BIGNUM_EMBED_LEN_NUMBITS is the bit width of embedded bignum length, and BIGNUM_EMBED_LEN_SHIFT is the bit offset of it. These two values happened to equal by chance, however they are different things. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64904 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Moved `struct vtm` stuff from internal.h to timev.hnobu2018-09-251-10/+0
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64833 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Enumerable#to_h with block and so onnobu2018-09-201-0/+1
| | | | | | [Feature #15143] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64794 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* share VM stack between threads and fibers if identical in sizenormal2018-09-121-0/+1
| | | | | | | | | | | | | ec->vm_stack is always allocated with malloc, so stack cache for root fiber (thread stack) and non-root fibers can be shared as long as the size is the same. The purpose of this change is to reduce dependencies on ROOT_FIBER_CONTEXT. [Feature #15095] [Bug #15050] v2: vm.c: fix build with USE_THREAD_DATA_RECYCLE==0 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64703 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* random.c: prefixed fill_random_bytesnobu2018-09-111-1/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64680 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* add new instruction attribute called leafshyouhei2018-09-111-0/+7
| | | | | | | | | | | An instruction is leaf if it has no rb_funcall inside. In order to check this property, we introduce stack canary which is a random number collected at runtime. Stack top is always filled with this number and checked for stack smashing operations, when VM_CHECK_MODE. [GH-1947] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64677 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ruby.h: removed internal macrosnobu2018-09-041-4/+1
| | | | | | | * include/ruby/ruby.h (RCOMPLEX_SET_REAL, RCOMPLEX_SET_IMAG): removed macros for internal use, which have been exposed by accident. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* complex.c: simplify division resultnobu2018-09-011-0/+1
| | | | | | | * complex.c (f_divide): canonicalize rationals to simplify integer complex results. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64610 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* rest parameter optimization [Feature #15010]ko12018-08-281-0/+1
| | | | | | | | | | | * vm_args.c: rb_ary_dup(args->rest) to be used at most once during parameter setup. [Feature #15010] A patch by chopraanmol1 (Anmol Chopra) <chopraanmol1@gmail.com>. * array.c (rb_ary_behead): added to remove first n elements. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64583 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Avoid compiler depend errorkazu2018-08-221-3/+3
| | | | | | ref r64492 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* internal.h: remove prototype for non-existent rb_divert_reserved_fdnormal2018-08-211-3/+0
| | | | | | I forgot to remove it 3 years ago in r51576 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64488 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* thread_pthread.c: eliminate timer thread by restructuring GVLnormal2018-08-131-0/+3
| | | | | | | | | | | This reverts commit 194a6a2c68e9c8a3536b24db18ceac87535a6051 (r64203). Race conditions which caused the original reversion will be fixed in the subsequent commit. [ruby-core:88360] [Misc #14937] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64352 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: don't wait JIT queue flush on rb_f_execk0kubun2018-08-091-1/+1
| | | | | | This wasn't intended in r64253. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64254 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* process.c: fix outdated mjit_pause declarationk0kubun2018-08-091-0/+5
| | | | | | | | | | | | by sharing it with vm.c in internal.h. vm.c: ditto internal.h: ditto mjit.h: share more. mjit.c: make sure the third arguemnt is not used git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64253 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* enumerator.c: Introduce Enumerator::ArithmeticSequencemrkn2018-08-061-0/+5
| | | | | | | | | | | | | | | | | | | This commit introduces new core class Enumerator::ArithmeticSequence. Enumerator::ArithmeticSequence is a subclass of Enumerator, and represents a number generator of an arithmetic sequence. After this commit, Numeric#step and Range#step without blocks returned an ArithmeticSequence object instead of an Enumerator. This class introduces the following incompatibilities: - You can create a zero-step ArithmeticSequence, and its size is not ArgumentError, but Infinity. - You can create a negative-step ArithmeticSequence from a range. [ruby-core:82816] [Feature #13904] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64205 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* thread_pthread.c: restore timer-thread for now :<normal2018-08-061-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ruby-core:88306] Revert "process.c: ensure th->interrupt lock is held when migrating" This reverts commit 5ca416bdf6b6785cb20f139c2c514eda005fe42f (r64201) Revert "process.c (rb_waitpid): reduce sigwait_fd bouncing" This reverts commit 217bdd776fbeea3bfd0b9324eefbfcec3b1ccb3e (r64200). Revert "test/ruby/test_thread.rb (test_thread_timer_and_interrupt): add timeouts" This reverts commit 9f395f11202fc3c7edbd76f5aa6ce1f8a1e752a9 (r64199). Revert "thread_pthread.c (native_sleep): reduce ppoll sleeps" This reverts commit b3aa256c4d43d3d7e9975ec18eb127f45f623c9b (r64193). Revert "thread.c (consume_communication_pipe): do not retry after short read" This reverts commit 291a82f748de56e65fac10edefc51ec7a54a82d4 (r64185). Revert "test/ruby/test_io.rb (test_race_gets_and_close): timeout each thread" This reverts commit 3dbd8d1f66537f968f0461ed8547460b3b1241b3 (r64184). Revert "thread_pthread.c (gvl_acquire_common): persist timeout across calls" This reverts commit 8c2ae6e3ed072b06fc3cbc34fa8a14b2acbb49d5 (r64165). Revert "test/ruby/test_io.rb (test_race_gets_and_close): use SIGABRT on timeout" This reverts commit 931cda4db8afd6b544a8d85a6815765a9c417213 (r64135). Revert "thread_pthread.c (gvl_yield): do ubf wakeups when uncontended" This reverts commit 508f00314f46c08b6e9b0141c01355d24954260c (r64133). Revert "thread_pthread.h (native_thread_data): split condvars on some platforms" This reverts commit a038bf238bd9a24bf1e1622f618a27db261fc91b (r64124). Revert "process.c (waitpid_nogvl): prevent conflicting use of sleep_cond" This reverts commit 7018acc946882f21d519af7c42ccf84b22a46b27 (r64117). Revert "thread_pthread.c (rb_sigwait_sleep): th may be 0 from MJIT" This reverts commit 56491afc7916fb24f5c4dc2c632fb93fa7063992 (r64116). Revert "thread*.c: waiting on sigwait_fd performs periodic ubf wakeups" This reverts commit ab47a57a46e70634d049e4da20a5441c7a14cdec (r64115). Revert "thread_pthread.c (gvl_destroy): make no-op on GVL bits" This reverts commit 95cae748171f4754b97f4ba54da2ae62a8d484fd (r64114). Revert "thread_pthread.c (rb_sigwait_sleep): fix uninitialized poll set in UBF case" This reverts commit 4514362948fdb914c6138b12d961d92e9c0fee6c (r64113). Revert "thread_pthread.c (rb_sigwait_sleep): re-fix [Bug #5343] harder" This reverts commit 26b8a70bb309c7a367b9134045508b5b5a580a77 (r64111). Revert "thread.c: move ppoll wrapper into thread_pthread.c" This reverts commit 3dc7727d22fecbc355597edda25d2a245bf55ba1 (r64110). Revert "thread.c: move ppoll wrapper before thread_pthread.c" This reverts commit 2fa1e2e3c3c5c4b3ce84730dee4bcbe9d81b8e35 (r64109). Revert "thread_pthread.c (ubf_select): refix [Bug #5343]" This reverts commit 4c1ab82f0623eca91a95d2a44053be22bbce48ad (r64108). Revert "thread_win32.c: suppress warnings by -Wsuggest-attribute" This reverts commit 6a9b63e39075c53870933fbac5c1065f7d22047c (r64159). Revert "thread_pthread: remove timer-thread by restructuring GVL" This reverts commit 708bfd21156828526fe72de2cedecfaca6647dc1 (r64107). git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e