From 72b199940d8a19d869bb9f0bb6065d15bbb030d7 Mon Sep 17 00:00:00 2001
From: yugui <yugui@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 3 Jan 2010 15:36:17 +0000
Subject: * trace.h: new file. wraps tracing mechanisms.

* 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.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@26235 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 insns.def | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'insns.def')

diff --git a/insns.def b/insns.def
index 5f789bd441..869d7564d8 100644
--- a/insns.def
+++ b/insns.def
@@ -859,6 +859,30 @@ trace
     rb_event_flag_t flag = (rb_event_flag_t)nf;
 
     EXEC_EVENT_HOOK(th, flag, GET_SELF(), 0, 0 /* TODO: id, klass */);
+    if (UNLIKELY(TRACE_METHOD_ENTRY_ENABLED()
+                | TRACE_METHOD_RETURN_ENABLED()
+                | TRACE_LINE_ENABLED()
+                | TRACE_RESCUE_ENABLED())) {
+	if (UNLIKELY(TRACE_METHOD_ENTRY_ENABLED()) && (flag & RUBY_EVENT_CALL) ) {
+	    VALUE self = GET_SELF(), klass;
+	    ID id;
+	    rb_thread_method_id_and_class(GET_THREAD(), &id, &klass);
+	    FIRE_METHOD_ENTRY(self, (char*)rb_class2name(klass), (char*)rb_id2name(id), (char*)rb_sourcefile(), rb_sourceline());
+	}
+	if (UNLIKELY(TRACE_METHOD_RETURN_ENABLED()) && (flag & RUBY_EVENT_RETURN) ) {
+	    VALUE self = GET_SELF(), klass;
+	    ID id;
+	    rb_thread_method_id_and_class(GET_THREAD(), &id, &klass);
+	    FIRE_METHOD_RETURN(self, (char*)rb_class2name(klass), (char*)rb_id2name(id), (char*)rb_sourcefile(), rb_sourceline());
+	}
+	if (UNLIKELY(TRACE_RESCUE_ENABLED()) && (flag & RUBY_EVENT_RESCUE) ) {
+            VALUE ex = GET_DFP()[-2];
+	    FIRE_RESCUE(ex, (char*)rb_class2name(CLASS_OF(ex)), (char*)rb_sourcefile(), rb_sourceline());
+	}
+	if (UNLIKELY(TRACE_LINE_ENABLED()) && (flag & RUBY_EVENT_LINE) ) {
+	    FIRE_LINE((char*)rb_sourcefile(), rb_sourceline());
+	}
+    }
 }
 
 /**********************************************************/
-- 
cgit v1.2.3

