git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26243 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* defs/dtrace.d: new file. defined a dtrace provider "ruby".

* include/ruby/ruby.h (LIKELY): moved from vm.c.
  (UNLIKELY): ditto.
  (OBJSETUP): probe "object-create".
  (RUBY_EVENT_RESCUE): new event.

* vm_exec.c (DEBUG_ENTER_INSN): embeded a probe insn-entry into it.
  (DEBUG_END_INSN): insn-return.

* vm.c (LIKELY): moved into ruby.h.
  (UNLIKELY): ditto.
  (Init_BareVM): embeded a probe "raise" into it.

* variable.c (rb_class2name_without_alloc): new utility function.

* tool/rbinstall.rb (install?(:ext, :arch, :'ext-arch')): installs 
  dtrace.d if necessary.

* thread_pthread.c (add_signal_thread_list): probe "raise".
  (rb_thread_create_timer_thread): ditto.

* thread.c (rb_thread_schedule_rec): probes "thread-enter" and
  "thread-leave",
  (thread_start_func_2): ditto.
  (thread_cleanup_func): probe "thread-term"

* lib/mkmf.rb: supports dtrace postprocessor on making an extension.

* iseq.c (rb_vm_insn_name): new utility function.
  (rb_vm_insn_len): ditto.

* insns.def (hook): probes "method-etnry", "method-return", "line",
  and "rescue".

* compile.c (iseq_compile_each): adds a trace op for "rescue" probe.

* gc.c (garbage_collect): probes "gc-begin" and "gc-end".
  (obj_free): probe "object-free"
  (garbage_collect_with_gvl): probe "raise"
  (negative_size_allocation_error): ditto.
  (rb_memerror): ditto.

* eval.c (rb_rescue2): probe "rescue"
  (rb_longjmp): probe "raise"

* ext/probe/probe.c: new extension for application defined probes.

* ext/probe/extconf.rb: ditto.

* configure.in (--with-tracing-model): new option to choose a tracing
  mechanism.
  (DTRACE): new substitution. name of dtrace(1).
  (RUBY_TRACING_MODEL): new substitution.
  (DTRACE_OBJ): ditto.
  (MINIDTRACE_OBJ): ditto.
  (GOLFDTRACE_OBJ): ditto.
  (LIBRUBY_DTRACE_OBJ): ditto.
  (RUBY_DTRACE_POSTPROCESS): new macro. checks whether the dtrace on 
  the system needs postprocessing.
  (RUBY_DTRACE_BSD_BROKEN): new macro. checks whether the dtrace
  supports USDT.

* Makefile.in: 
  (DTRACE): new variable. name of dtrace(1).
  (TRACING_MODEL): new variable. name of the chosen tracing mechanism.
  (DTRACE_OBJ): same as the one in configure.in.
  (MINIDTRACE_OBJ): ditto.
  (GOLFDTRACE_OBJ): ditto.
  (LIBRUBY_DTRACE_OBJ): ditto.
  (CPPOUTFILE): new substitution. necessary for generating dtrace.d
  (trace_none.h): new target for TRACING_MODEL=none
  (RUBY_H_INCLUDES): appended a header for tracing.
  (distclean-local): also removes preprocessed version of dtrace.d
  ($(LIBRUBY_A)): needs $(LIBRUBY_DTRACE_OBJ) if dtrace needs 
  postprocessing.
  ($(PROGRAM)): ditto.
  (golf): ditto.
  (miniruby): ditto.
  ($(arch_hdrdir)/ruby/dtrace.d): new target. preprocessed verson 
  of defs/dtrace.d. generated if necessary.
  ($(arch_hdrdir)/ruby/trace_dtrace.h): new target.
  definition of probes.
  ($(LIBRUBY_DTRACE_OBJ)): new target. generated if dtrace needs 
  postprocessing.
  ($(DTRACE_OBJ)): ditto.
  ($(MINIDTRACE_OBJ)): ditto.
  ($(GOLFDTRACE_OBJ)): ditto.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  [ruby-core:23210]

* parse.y (rb_reserved_word): ordinary function for ripper.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@23436 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  input files for code generators into defs/ directory.

* Makefile.in (lex.c): followed keywords and lex.c.src.

* common.mk (parser.o): followed keywords.
  (INSNS): followed opt_*.def

* tools/instruction.rb: followed opt_*.def.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@19844 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  (errno_missing): removed. fixed [ruby-dev:35958].

* defs/knwon_errors.def: added. extracted from Init_syserr.

* templates/known_errors.inc.tmpl: added. Template for Init_syserr.
  c.f. [ruby-dev:35958].

* tools/generic_erb.rb: added. general purpose mapper which maps
  data+template into source code.

* common.mk (error.$(OBJEXT), incs, known_errors.inc):
  Fixed dependencies.

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