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* signal.c: fix braino in fake_grantfdnormal2018-06-271-1/+1
| | | | | | | | [Bug #14871] Is neon down? I missed ruby-core notifications on this. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63762 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* hijack SIGCHLD handler for internal usenormal2018-06-271-26/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use a global SIGCHLD handler to guard all callers of rb_waitpid. To work safely with multi-threaded programs, we introduce a VM-wide waitpid_lock to be acquired BEFORE fork/vfork spawns the process. This is to be combined with the new ruby_waitpid_locked function used by mjit.c in a non-Ruby thread. Ruby-level SIGCHLD handlers registered with Signal.trap(:CHLD) continues to work as before and there should be no regressions in any existing use cases. Splitting the wait queues for PID > 0 and groups (PID <= 0) ensures we favor PID > 0 callers. The disabling of SIGCHLD in rb_f_system is longer necessary, as we use deferred signal handling and no longer make ANY blocking waitpid syscalls in other threads which could "beat" the waitpid call made by rb_f_system. We prevent SIGCHLD from firing in normal Ruby Threads and only enable it in the timer-thread, to prevent spurious wakeups from in test/-ext-/gvl/test_last_thread.rb with MJIT enabled. I've tried to guard as much of the code for RUBY_SIGCHLD==0 using C "if" statements rather than CPP "#if" so to reduce the likelyhood of portability problems as the compiler will see more code. We also work to suppress false-positives from Process.wait(-1, Process::WNOHANG) to quiets warnings from spec/ruby/core/process/wait2_spec.rb with MJIT enabled. Lastly, we must implement rb_grantpt for ext/pty. We need a MJIT-compatible way of supporting grantpt(3) which may spawn the `pt_chown' binary and call waitpid(2) on it. [ruby-core:87605] [Ruby trunk Bug#14867] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63758 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: follow up r63435nobu2018-05-151-1/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* simplify altstack and enable reuse with thread cachenormal2018-04-201-10/+7
| | | | | | | | | | | | | | Instead of allocating and registering the altstack in different places, do it together to reduce code and improve readability. When thread cache is enabled, storing altstack in rb_thread_t is wasteful and we may reuse altstack in the same pthread. This also lets us clearly allow use of xmalloc to allow GC to recover from ENOMEM. [ruby-core:85621] [Feature #14487] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63213 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: refine error messagesnobu2018-03-101-68/+73
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62716 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: check NUL bytesnobu2018-03-101-13/+7
| | | | | | | * signal.c (trap_signm): check NUL bytes explicitly before raising "unsupported signal" ArgumentError. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62715 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* sigill marked as NORETURNshyouhei2018-01-181-0/+3
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61924 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ruby_abort marked as NORETURNshyouhei2018-01-181-0/+2
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61923 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* sigsegv marked as NORETURNshyouhei2018-01-181-0/+3
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* sigbus marked as NORETURNshyouhei2018-01-181-0/+3
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61921 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* merge extern declarations into internal.hshyouhei2018-01-181-3/+0
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove `PUSH_TAG`/`EXEC_AG`/`POP_TAG`/`JUMO_TAG`.ko12017-12-061-1/+1
| | | | | | | | * 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
* move rb_thread_t::interrupt_flag and maskko12017-11-061-7/+7
| | | | | | | | | | | | | | | | 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
* should use `th`.ko12017-10-271-3/+3
| | | | | | | | * signal.c (check_stack_overflow): ruby_stack_overflowed_p() should accept `th`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60475 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* refactoring (rb_|)threadptr_stack_overflow.ko12017-10-271-8/+8
| | | | | | | | | * vm_insnhelper.c (ec_stack_overflow): renamed from threadptr_stack_overflow and also rb_ec_stack_overflow is from rb_threadptr_stack_overflow because they accept `ec` instead of `th`. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60464 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* introduce EC_*_TAG() instead of TH_*_TAG()ko12017-10-261-3/+3
| | | | | | | | | | | | | | | | * 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
* Use rb_execution_context_t instead of rb_thread_tko12017-10-261-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | 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
* Drop to support NaCl platform.hsbt2017-10-231-8/+2
| | | | | | | | | | | Because NaCl and PNaCl are already sunset status. see https://bugs.chromium.org/p/chromium/issues/detail?id=239656#c160 configure.ac: Patch for this file was provided by @nobu. [Feature #14041][ruby-core:83497][fix GH-1726] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@60374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: fatal stacknobu2017-08-221-3/+5
| | | | | | | * signal.c (check_stack_overflow): raise fatal when the last tag is in danger zone. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59634 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: removed raise_stack_overflow:nobu2017-08-221-5/+5
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59633 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_core.h: shrink trap_list sizenobu2017-07-271-10/+10
| | | | | | | * vm_core.h (rb_vm_struct): separate trap_list cmd and safe to each arrays, to shrink the size. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* move several fields from rb_thread_t to rb_execution_context_t.ko12017-06-261-2/+2
| | | | | | | | * vm_core.h (rb_thread_t): move several fields which are copied at cont.c to rb_execution_context_t. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59177 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* use "enum ruby_tag_type" and TAG_NONE.ko12017-06-231-2/+2
| | | | | | | | | | | | | | | Return value of EXEC_TAG() is saved by "int state". Instead of "int", use "enum ruby_tag_type". First EXEC_TAG() value should be 0, so that define TAG_NONE (= 0) and use it. Some code used "status" instead of "state". To make them clear, rename them to state. We can change variable name from "state" to "tag_state", but this ticket doesn't contain it. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59155 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* remove ruby_kill() introduced for [Bug #7951].ko12017-06-121-1/+1
| | | | | | | | | | | | | | | | | | * thread.c (rbuy_kill): removed. This function is used with SIGSEGV, SIGBUS, SIGKILL, SIGILL, SIGFPE and SIGSTOP and these signals are affect immediately. So that `kill(2)' is enough for them. * signal.c (rb_f_kill): ditto. * vm_core.h (rb_thread_t::interrupt_cond): removed because only `ruby_kill()' uses this field. * test/ruby/test_signal.rb: Without this patch sending SIGSTOP to own process wait another interrupt even if another process sends SIGCONT. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59066 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: do not disable handlers to dump corenobu2017-06-091-1/+0
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59054 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: no sigsegv handler with valgrindnobu2017-06-091-7/+9
| | | | | | | * signal.c: disable handling signals to dump core, if installing unreserved signals failed, not valgrind to hang on Mac OS. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59052 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: warn at unresserved signalsnobu2017-06-091-4/+7
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59051 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: relax installation failurenobu2017-06-081-4/+10
| | | | | | | | | * signal.c (install_sighandler): ignore failure at unreserved signals. e.g., SIGUSR2 fails under valgrind. * signal.c (install_sighandler_fail): refine [BUG] message. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59046 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* refer flag variables regardless RUBY_DEBUG_ENVnobu2017-05-151-3/+0
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* vm_insnhelper.c: rb_threadptr_stack_overflownobu2017-04-171-2/+2
| | | | | | | * vm_insnhelper.c (rb_threadptr_stack_overflow): move from thread.c and integrate with vm_stackoverflow. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58379 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: last tag page conditionnobu2017-04-151-1/+1
| | | | | | | * signal.c (check_stack_overflow): drop the last tag when it is close to the fault page, not same as sp page. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58363 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: prefer pthread_sigmasknobu2017-04-151-4/+10
| | | | | | | * signal.c (raise_stack_overflow): prefer pthread_sigmask to sigprocmask, for multithreading. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58361 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: add sigprocmask guardnobu2017-04-141-0/+4
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: unblock signalnobu2017-04-141-9/+20
| | | | | | | * signal.c (raise_stack_overflow): unblock the received signal, to receive the same signal again. [ruby-core:79285] [Bug #13164] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58353 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: improve stack overflow checknobu2016-11-271-1/+11
| | | | | | | | * signal.c (check_stack_overflow): [EXPERIMENTAL] consider the segfault a stack overflow when the fault address is between SP and BP. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56907 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Update Signal.signame doc [ci-skip]nobu2016-09-281-2/+3
| | | | | | | * signal.c (sig_signame): [DOC] Add documentation in the case of return nil. [Fix GH-1449] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56280 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* replace fixnum by integer in documents.akr2016-09-081-1/+1
| | | | git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56102 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* use TH_JUMP_TAGnobu2016-05-051-1/+1
| | | | | | | | * vm_eval.c (rb_eval_cmd, rb_catch_obj): use TH_JUMP_TAG with the same rb_thread_t used for TH_PUSH_TAG, instead of JUMP_TAG with the current thread global variable. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54914 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Signal.list deduplicates keysnormal2016-01-261-1/+1
| | | | | | | | | | This allows us to reuse string objects used in symbols as well as any string representations of signal names in source code. * signal.c (sig_list): use fstring for hash key * test/ruby/test_signal.rb (test_signal_list_dedupe_keys): added git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53657 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: reserved signalsnobu2016-01-261-0/+6
| | | | | | | * signal.c (rb_f_kill): should immediately deliver reserved signals SIGILL and SIGFPE, ont only SIGSEGV and SIGBUS. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53656 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Drop support for BeOSnobu2015-11-241-4/+0
| | | | | | | * beos: Drop support for BeOS now that Haiku is stable. [Fix GH-1112] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52731 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* Haiku now best effort supportnobu2015-11-231-2/+10
| | | | | | | | | | * configure.in: remove obsolete workarounds for Haiku. * dln.c, file.c, io.c: remove obsolete Haiku workarounds. * thread_pthread.c: add stack bounds detection for Haiku. * signal.c: get stack pointer from signal context on Haiku. [ruby-core:67923] [Bug #10811] [Fix GH-1109] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* * signal.c: should also clear ruby_disable_gc.ko12015-11-191-1/+1
| | | | | | | | | [Bug #11692] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52668 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* revert r31760 and r31761nobu2015-07-261-3/+3
| | | | | | | seems that rb_bug_errno() is called in sigpipe() intentionally. https://gist.github.com/sorah/831169 git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51390 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: discard SIGSYSnobu2015-07-261-0/+15
| | | | | | | * signal.c (default_handler, Init_signal): discard SIGSYS, ENOSYS should raise a SystemCallError always instead. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51389 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c (trap_handler): cleanup to use RSTRING_GETMEM + memcmpnormal2015-07-171-7/+10
| | | | | | | | | | | | | strncmp is unnecessary since the switch/case statement already checks length of the string; so use memcmp. This makes for a small reduction in binary size on 32-bit x86: text data bss dec hex filename 2847473 12360 30632 2890465 2c1ae1 ruby.before 2847313 12328 30632 2890273 2c1a21 ruby.after git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51287 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* * include/ruby/ruby.h: $SAFE=2 is now obsolete.hsbt2015-06-181-2/+0
| | | | | | | | | | * dir.c, ext/fiddle/handle.c, ext/socket/basicsocket.c, file.c gc.c, io.c, process.c, safe.c, signal.c, win32/file.c: removed code for $SAFE=2 * test/erb/test_erb.rb, test/fiddle/test_handle.rb test/ruby/test_env.rb: removed tests for $SAFE=2. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: nil for invalid signumnobu2015-03-021-0/+1
| | | | | | | * signal.c (sig_signame): return nil if the argument is a valid signal number. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* signal.c: preserve errnonormal2015-02-251-0/+4
| | | | | | | | * signal.c (sighandler): preserve errno Patch by Steven Stewart-Gallus <sstewartgallus00@mylangara.bc.ca> [ruby-core:68172] [Bug #10866] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49746 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* eval.c: static IDsnobu2015-02-231-2/+5
| | | | | | | * eval.c (ruby_static_id_signo, ruby_static_id_status): add static IDs, signo and status. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49700 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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