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Remove the remainder of ROOT_FIBER_CONTEXT use and unnecessary
differences between the root and non-root fiber. This makes
it easier to follow new root fiber at fork time.
Multiple sources of truth often leads to bugs, as in this case.
We can determinte root fiber by checking a fiber against the root_fiber
of its owner thread. The new `fiber_is_root_p' function
supports that.
Now, we can care only about free-ing/recycling/munmap-ing stacks
as appropriate.
[Bug #15050]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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We can check if the fiber we're interested in is the
th->root_fiber for the owner thread, so there is no need to use
ROOT_FIBER_CONTEXT.
Note: there is no guarantee th->ec points to
&th->root_fiber->cont.saved_ec, thus vm::thread_memsize may not
account for root fiber correctly (pre-existing bug).
[Bug #15050]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64705 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Am I missing something, here? Casting was totally unnecessary
and ugly...
[ruby-core:88929]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64704 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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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
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Otherwise, bootstraptest/test_fork.rb fails with -DVM_CHECK_MODE=2
[Bug #15041]
Fixes: r64589 "cont.c: set th->root_fiber to current fiber at fork"
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64593 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Otherwise, th->root_fiber can point to an invalid Fiber,
because Fibers do not live across fork. So consider
whatever Fiber is running the root fiber.
[ruby-core:88723] [Bug #15041]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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It is unused (we use rb_execution_context_t.ensure_list instead)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64587 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ref r64492
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (struct rb_fiber_struct): fix wrong usage of BITFIELD in
r64487, which caused syntax error on pre-C99 compilers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64492 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Following ko1's lead in r59192, this gets rid of non-obvious
assignments which happen inside macros.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64489 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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On 32-bit x86, this reduces the struct from 836 to 832 bytes and
brings us down to 13 (64-byte) cachelines (from 14).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64487 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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We see several occurrence of "diagnostic push/pop" so why not
make them macros. Tested on GCC8 / Clang 6.
Note that ruby.h is intentionally left untouched because we don't
want to introduce new public macros.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64118 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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timer-thread may set trap interrupt with rb_threadptr_check_signal
at any time independent of GVL. This means timer-thread may set
the trap interrupt flag on the previous execution context; causing
the flag to be unnoticed until a future ec switch (or lost
completely if the ec is done).
Note: I avoid relying on th->interrupt_lock here and use
atomics because we won't be able to rely on it for proposed lazy
timer-thread [Misc #14937].
This regression affects Ruby 2.5 as it was introduced by moving
interrupt_flag to `ec' which is an unstable pointer. Ruby <= 2.4
was unaffected because vm->main_thread->interrupt_flag never
changed.
[ruby-core:88119] [Bug #14939]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64062 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63840 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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It may raise an error in a certain security configuration.
It is very likely to trigger a segmentation fault if `getcontext()` failed silently
and we just let it keep going.
Related to https://bugs.ruby-lang.org/issues/14883
[Fix GH-1903]
Based on the patch from Lion Yang <lion@aosc.io>
From: Lion Yang <lion@aosc.io>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63835 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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`RubyVM::MJIT.enabled?`.
It's set to be TRUE even before initialization is finished.
So it was actually not "mjit initialized predicate".
This flag is also used to check whether JIT-ed code should be called
or not, but I'm going to split the responsibility to another flag.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63732 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_context_create): `func` should accept variable args.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63357 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63355 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63352 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_machine_stack_alloc): refined the error message on
failure at setting a guard page.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_store, rb_fiber_terminate): separate the condition
to cache machine stacks, which is not directly restricted to the
platforms, and may be used on Windows too in the future.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63344 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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It seems like leftover development step from r59557
("refactoring Fiber status").
I will make fiber_status use BITFIELD macro in a future
commit.
* cont.c (struct rb_fiber_struct): drop const from fiber_status
(fiber_status_set): remove cast
[ruby-core:86788] [Misc #14720]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (root_fiber_alloc): call `ConvertThreadToFiber()` here.
`rb_fiber_t` for root_fiber is allocated before running Threads.
Fiber objects wrapping this rb_fiber_t for root_fiber are created
when root Fiber object is required explicitly (for example, Fiber
switching and so on). We can put calling `ConvertThreadToFiber()`.
In other words, we can pending `ConvertThreadToFiber()`
until Fiber objects are created.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63090 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (rb_threadptr_root_fiber_setup): divide into two functions:
* rb_threadptr_root_fiber_setup_by_parent(): called by the parent thread.
* rb_threadptr_root_fiber_setup_by_child(): called by the created thread.
`rb_threadptr_root_fiber_setup()` is called by the parent thread and
set fib->fib_handle by ConvertThreadToFiber() on the parent thread on
Windows enveironment.
This means that root_fib->fib_handle of child thread is initialized
with parent thread's Fiber handle. Furthermore, second call of
`ConvertThreadToFiber()` for the same thread fails.
This patch solves this weird situateion. However, maybe we can make more
clean code.
* thread.c (thread_start_func_2): call
`rb_threadptr_root_fiber_setup_by_child()` at thread initialize routine.
* vm.c (th_init): call `rb_threadptr_root_fiber_setup_by_parent()`.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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that allows to JIT-compile Ruby methods by generating C code and
using C compiler. See the first comment of mjit.c to know what this
file does.
mjit.c is authored by Vladimir Makarov <vmakarov@redhat.com>.
After he invented great method JIT infrastructure for MRI as MJIT,
Lars Kanis <lars@greiz-reinsdorf.de> sent the patch to support MinGW
in MJIT. In addition to merging it, I ported pthread to Windows native
threads. Now this MJIT infrastructure can be compiled on Visual Studio.
This commit simplifies mjit.c to decrease code at initial merge. For
example, this commit does not provide multiple JIT threads support.
We can resurrect them later if we really want them, but I wanted to minimize
diff to make it easier to review this patch.
`/tmp/_mjitXXX` file is renamed to `/tmp/_ruby_mjitXXX` because non-Ruby
developers may not know the name "mjit" and the file name should make
sure it's from Ruby and not from some harmful programs. TODO: it may be
better to store this to some temporary directory which Ruby is already using
by Tempfile, if it's not bad for performance.
mjit.h: New. It has `mjit_exec` interface similar to `vm_exec`, which is
for triggering MJIT. This drops interface for AOT compared to the original
MJIT.
Makefile.in: define macros to let MJIT know the path of MJIT header.
Probably we can refactor this to reduce the number of macros (TODO).
win32/Makefile.sub: ditto.
common.mk: compile mjit.o and mjit_compile.o. Unlike original MJIT, this
commit separates MJIT infrastructure and JIT compiler code as independent
object files. As initial patch is NOT going to have ultra-fast JIT compiler,
it's likely to replace JIT compiler, e.g. original MJIT's compiler or some
future JIT impelementations which are not public now.
inits.c: define MJIT module. This is added because `MJIT.enabled?` was
necessary for testing.
test/lib/zombie_hunter.rb: skip if `MJIT.enabled?`. Obviously this
wouldn't work with current code when JIT is enabled.
test/ruby/test_io.rb: skip this too. This would make no sense with MJIT.
ruby.c: define MJIT CLI options. As major difference from original MJIT,
"-j:l"/"--jit:llvm" are renamed to "--jit-cc" because I want to support
not only gcc/clang but also cl.exe (Visual Studio) in the future. But it
takes only "--jit-cc=gcc", "--jit-cc=clang" for now. And only long "--jit"
options are allowed since some Ruby committers preferred it at Ruby
developers Meeting on January, and some of options are renamed.
This file also triggers to initialize MJIT thread and variables.
eval.c: finalize MJIT worker thread and variables.
test/ruby/test_rubyoptions.rb: fix number of CLI options for --jit.
thread_pthread.c: change for pthread abstraction in MJIT. Prefix rb_ for
functions which are used by other files.
thread_win32.c: ditto, for Windows. Those pthread porting is one of major
works that YARV-MJIT created, which is my fork of MJIT, in Feature 14235.
thread.c: follow rb_ prefix changes
vm.c: trigger MJIT call on VM invocation. Also trigger `mjit_mark` to avoid
SEGV by race between JIT and GC of ISeq. The improvement was provided by
wanabe <s.wanabe@gmail.com>.
In JIT compiler I created and am going to add in my next commit, I found
that having `mjit_exec` after `vm_loop_start:` is harmful because the
JIT-ed function doesn't proceed other ISeqs on RESTORE_REGS of leave insn.
Executing non-FINISH frame is unexpected for my JIT compiler and
`exception_handler` triggers executions of such ISeqs. So `mjit_exec`
here should be executed only when it directly comes from `vm_exec` call.
`RubyVM::MJIT` module and `.enabled?` method is added so that we can skip
some tests which don't expect JIT threads or compiler file descriptors.
vm_insnhelper.h: trigger MJIT on method calls during VM execution.
vm_core.h: add fields required for mjit.c. `bp` must be `cfp[6]` because
rb_control_frame_struct is likely to be casted to another struct. The
last position is the safest place to add the new field.
vm_insnhelper.c: save initial value of cfp->ep as cfp->bp. This is an
optimization which are done in both MJIT and YARV-MJIT. So this change
is added in this commit. Calculating bp from ep is a little heavy work,
so bp is kind of cache for it.
iseq.c: notify ISeq GC to MJIT. We should know which iseq in MJIT queue
is GCed to avoid SEGV. TODO: unload some GCed units in some safe way.
gc.c: add hooks so that MJIT can wait GC, and vice versa. Simultaneous
JIT and GC executions may cause SEGV and so we should synchronize them.
cont.c: save continuation information in MJIT worker. As MJIT shouldn't
unload JIT-ed code which is being used, MJIT wants to know full list of
saved execution contexts for continuation and detect ISeqs in use.
mjit_compile.c: added empty JIT compiler so that you can reuse this commit
to build your own JIT compiler. This commit tries to compile ISeqs but
all of them are considered as not supported in this commit. So you can't
use JIT compiler in this commit yet while we added --jit option now.
Patch author: Vladimir Makarov <vmakarov@redhat.com>.
Contributors:
Takashi Kokubun <takashikkbn@gmail.com>.
wanabe <s.wanabe@gmail.com>.
Lars Kanis <lars@greiz-reinsdorf.de>.
Part of Feature 12589 and 14235.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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This change follows commit 837fd5e494731d7d44786f29e7d6e8c27029806f
in '#ifdef __ia64' branches.
Noticed as a build failure by John Paul Adrian Glaubitz:
```
cont.c:502:50: error: 'rb_thread_t {aka struct rb_thread_struct}'
has no member named 'machine'
size = cont->machine.register_stack_size =
th->machine.register_stack_end - th->machine.register_stack_start;
^~
```
The change is trivial: update 'th->machine' usage to 'th->ec->machine'.
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62106 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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These functions take variadic arguments so no automatic type
promotion is expected. You have to do it by hand.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61542 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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In this function, "volatile" is specified twice in macro-expanded
`VAR_INITIALIZED(cont)` part. That is a problem in fact. However
I don't want to touch this line because it is already a messy
workaround for clang SEGV. Let me just ignore.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61541 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm_core.h (rb_vm_t): move `rb_execution_context_t::safe_level` to
`rb_vm_t::safe_level_` because `$SAFE` is a process (VM) global state.
* vm_core.h (rb_proc_t): remove `rb_proc_t::safe_level` because `Proc`
objects don't need to keep `$SAFE` at the creation.
Also make `is_from_method` and `is_lambda` as 1 bit fields.
* cont.c (cont_restore_thread): no need to keep `$SAFE` for Continuation.
* eval.c (ruby_cleanup): use `rb_set_safe_level_force()` instead of access
`vm->safe_level_` directly.
* eval_jump.c: End procs `END{}` doesn't keep `$SAFE`.
* proc.c (proc_dup): removed and introduce `rb_proc_dup` in vm.c.
* safe.c (rb_set_safe_level): don't check `$SAFE` 1 -> 0 changes.
* safe.c (safe_setter): use `rb_set_safe_level()`.
* thread.c (rb_thread_safe_level): `Thread#safe_level` returns `$SAFE`.
It should be obsolete.
* transcode.c (load_transcoder_entry): `rb_safe_level()` only returns
0 or 1 so that this check is not needed.
* vm.c (vm_proc_create_from_captured): don't need to keep `$SAFE` for Proc.
* vm.c (rb_proc_create): renamed to `proc_create`.
* vm.c (rb_proc_dup): moved from proc.c.
* vm.c (vm_invoke_proc): do not need to set and restore `$SAFE`
for `Proc#call`.
* vm_eval.c (rb_eval_cmd): rename a local variable to represent clearer
meaning.
* lib/drb/drb.rb: restore `$SAFE`.
* lib/erb.rb: restore `$SAFE`, too.
* test/lib/leakchecker.rb: check `$SAFE == 0` at the end of tests.
* test/rubygems/test_gem.rb: do not set `$SAFE = 1`.
* bootstraptest/test_proc.rb: catch up this change.
* spec/ruby/optional/capi/string_spec.rb: ditto.
* test/bigdecimal/test_bigdecimal.rb: ditto.
* test/fiddle/test_func.rb: ditto.
* test/fiddle/test_handle.rb: ditto.
* test/net/imap/test_imap_response_parser.rb: ditto.
* test/pathname/test_pathname.rb: ditto.
* test/readline/test_readline.rb: ditto.
* test/ruby/test_file.rb: ditto.
* test/ruby/test_optimization.rb: ditto.
* test/ruby/test_proc.rb: ditto.
* test/ruby/test_require.rb: ditto.
* test/ruby/test_thread.rb: ditto.
* test/rubygems/test_gem_specification.rb: ditto.
* test/test_tempfile.rb: ditto.
* test/test_tmpdir.rb: ditto.
* test/win32ole/test_win32ole.rb: ditto.
* test/win32ole/test_win32ole_event.rb: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61510 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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saved_thread was renamed to saved_ec in r59831 [ci skip]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_switch): update comment (ec.fiber => ec->fiber_ptr)
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61060 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* eval_intern.h: remove non-`EC_` prefix *_TAG() macros.
Use `EC_` prefix macros explicitly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61040 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (cont_restore_thread): re-check a condition (pointed by nobu).
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60786 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (cont_restore_thread): fix duplicated-cond compile error.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60783 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm_trace.c: before this patch, deleted hooks are remvoed at
*the beggining* of hooks (exec_hooks_precheck).
This patch cleanup deleted hooks at
(1) just after hook is deleted (TracePoint#disable and so on)
(2) just after executing hooks (exec_hooks_postcheck)
Most of time (1) is enough, but if some threads running hooks,
we need to wait cleaning up deleted hooks until threads finish
running the hooks. This is why (2) is introduced (and this is
why current impl cleanup deleted hooks at the beggining of hooks).
* test/lib/tracepointchecker.rb: check also the number of delete
waiting hooks.
* cont.c (cont_restore_thread): fix VM->trace_running count.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60782 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60673 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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to rb_execution_context_t.
* vm_core.h (rb_thread_t): move
`rb_thread_t::interrupt_flag` and
`rb_thread_t::interrupt_mask` to rb_execution_context_t.
RUBY_VM_CHECK_INTS() accepts `ec` instead of `th`.
* cont.c (rb_fiber_terminate): to propagate interrupt information,
add new parameter `need_interrupt`.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm_core.h (rb_execution_context_t): renmae ec::fiber to
ec::fiber_ptr make consistent with ec::thread_ptr.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60670 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm_core.h (EXEC_EVENT_HOOK): accepts `ec` instead of `th`.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60539 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (rb_context_struct): move rb_context_t::thread_ptr to
rb_execution_context_t::thread_ptr.
* cont.c (rb_fiberptr_thread_ptr): removed.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60537 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm.c (rb_vm_get_binding_creatable_next_cfp): accepts `ec` instead of `th`.
* vm.c (rb_vm_stack_to_heap): ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60508 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm.c: the following functions accept `ec` instead of `th`.
* invoke_block
* invoke_bmethod
* invoke_iseq_block_from_c
* invoke_block_from_c_bh
* check_block_handler
* vm_yield_with_cref
* vm_yield
* vm_yield_with_block
* vm_yield_force_blockarg
* invoke_block_from_c_proc
* vm_invoke_proc
* vm_invoke_bmethod
* rb_vm_invoke_proc
* vm_insnhelper.c: ditto.
* vm_yield_with_cfunc
* vm_yield_with_symbol
* vm_callee_setup_block_arg
* vm_yield_setup_args
* vm_invoke_iseq_block
* vm_invoke_symbol_block
* vm_invoke_ifunc_block
* vm_invoke_block
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60476 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_switch): make sure the root fiber object is available
before the first switching.
* test/ruby/test_fiber.rb: remove "skip".
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60453 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* vm.c (thread_free): simply call rb_threadptr_root_fiber_release().
* cont.c (rb_threadptr_root_fiber_release): release th->ec (ec->fiber)
iff root_fiber is NULL. If root_fiber is available, then ignore it
and root fiber object will free th->ec too.
* cont.c (rb_threadptr_root_fiber_setup): do not set th->root_fiber.
th->root_fiber will be set if a root fiber object is created.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60451 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* eval_intern.h:
introduce EC_*_TAG() macros instead of TH_*_TAG() macros.
* TH_PUSH_TAG() -> EC_PUSH_TAG()
* TH_POP_TAG() -> EC_POP_TAG()
* TH_TMPPOP_TAG() -> EC_TMPPOP_TAG()
* TH_REPUSH_TAG() -> EC_REPUSH_TAG()
* TH_EXEC_TAG() -> EC_EXEC_TAG()
* TH_JUMP_TAG() -> EC_JUMP_TAG()
rb_threadptr_tag_state() , rb_ec_tag_jump() also accept `ec` instead of `th`.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60450 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60442 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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to represent execution context [Feature #14038]
* vm_core.h (rb_thread_t): rb_thread_t::ec is now a pointer.
There are many code using `th` to represent execution context
(such as cfp, VM stack and so on). To access `ec`, they need to
use `th->ec->...` (adding one indirection) so that we need to
replace them by passing `ec` instead of `th`.
* vm_core.h (GET_EC()): introduced to access current ec. Also
remove `ruby_current_thread` global variable.
* cont.c (rb_context_t): introduce rb_context_t::thread_ptr instead of
rb_context_t::thread_value.
* cont.c (ec_set_vm_stack): added to update vm_stack explicitly.
* cont.c (ec_switch): added to switch ec explicitly.
* cont.c (rb_fiber_close): added to terminate fibers explicitly.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60440 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_switch): th->fiber => th->ec.fiber in comment
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59859 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (rb_context_t): introduce saved_ec instaad of saved_thread.
We only need to transfer ec data (not all of thread data).
Introduce `thread_value` field to point creation thread.
To acccess this field, `cont_thread_value()` is introduced.
* vm.c (rb_execution_context_mark): remove `static` and use it
from cont.c (use this function instead of `rb_thread_mark`).
* vm_insnhelper.c (rb_vm_push_frame): accept ec instead of th.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59831 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* cont.c (fiber_store): move `cont_save_machine_stack()` timing to
avoid `fiber_verify()` false positive on `FIBER_USE_NATIVE == 0`
and `GC.stress = true`.
This patch is very dirty and it should be removed soon.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59830 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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