* compile.c (rb_iseq_compile_node): fix location of a `trace'
	  instruction (b_return event).
	  [ruby-core:55305] [ruby-trunk - Bug #8489]
	  (need a backport to 2.0.0?)

	* test/ruby/test_settracefunc.rb: add a test.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@41319 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* proc.c (rb_binding_new_with_cfp): create binding object even if
  the frame is IFUNC. But return a ruby-level binding to keep
  compatibility.
  This patch fix degradation introduced from r39067.
  [Bug #7774] [ruby-dev:46960]
* test/ruby/test_settracefunc.rb: add a test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@39305 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  instead of rb_vm_get_ruby_level_next_cfp to prevent a segfault by
  calling Kernel#callcc. See r39067 for more details.
  [ruby-dev:46908] [ruby-trunk - Bug #7774]

* test/ruby/test_settracefunc.rb: add a test.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39073 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  of IFUNC frame.
  When `rb_binding_new_with_cfp()' is called, VM finds out the first
  normal (has iseq) frame and create a binding object of this frame
  and create Env objects. `ep's of related frames are updated
  (`ep's point Env object managed spaces).
  However, `ep' of skipped IFUNC frame was not updated and
  old invalid `ep' was remained. It causes serious problems.
  To solve this issue, permit IFUNC to create binding.
  (Maybe there is no problem on it)
  [ruby-dev:46908] [ruby-trunk - Bug #7774]
* test/ruby/test_settracefunc.rb: add a test.
* vm.c (rb_vm_get_binding_creatable_next_cfp), vm_core.h: added.
* vm_trace.c: fix to use `rb_vm_get_binding_creatable_next_cfp()'.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39067 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* test/ruby/test_settracefunc.rb (assert_security_error_safe4): fix
  tests to set $SAFE separatedly

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38972 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* vm_trace.c (rb_tracepoint_enable, rb_tracepoint_disable): check safe
  level as well as set_trace_func.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38969 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

* vm_trace.c (set_trace_func, thread_{add,set}_trace_func_m): check
  safe level as well as 1.8.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38968 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  JUMP_TAG() if frame is `finish' frame.
  Without this patch, there is an inconsistency between control
  frame stack and tags stack.
  [Bug #7668]
* test/ruby/test_settracefunc.rb: add a test for above.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38721 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  pop a frame before JUMP_TAG() if exception occurred.
  This change fix bug of Ruby 1.9.
  [ruby-core:51128] [ruby-trunk - Bug #7624]
* vm_core.h (EXEC_EVENT_HOOK_AND_POP_FRAME): add to use
  `rb_threadptr_exec_event_hooks_and_pop_frame()'.
* vm.c (vm_exec): use EXEC_EVENT_HOOK_AND_POP_FRAME() while
  exception handling. While exception hadnling, if an exception
  is raised in hooks, need to pop current frame and raise this
  raised exception by hook.
* test/ruby/test_settracefunc.rb: add a test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38601 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

  Move `trace_arg' from rb_tp_t::trace_arg to rb_thread_t::trace_arg.
  `trace_arg' may changed by multiple threads.
  rb_thread_t::trace_arg can represent rb_thread_t::trace_running
  (null or non-null) and rb_thread_t::trace_running is removed.
  After that, `rb_tp_t' is not needed to check tracing or not
  (A running thread knows tracing or not). This is why I remove
  tp_attr_check_active() and make new function get_trace_arg().
  And this modification disable to work the following code:
  TracePoint.trace{|tp|
  Thread.new{p tp.event} # access `tp' from other threads.
  }
  I believe nobody mix threads at trace procedure.
  This is current limitation.
* cont.c (fiber_switch, rb_cont_call): use rb_thread_t::trace_arg
  instead of rb_thread_t::trace_running.
* test/ruby/test_settracefunc.rb: add a multi-threading test.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38524 b2dd03c8-39d4-4d8f-98ff-823fe69b080e