vm.c: fix infinite loop

* vm.c: use EXEC_EVENT_HOOK_AND_POP_FRAME. While exception handling, if an exception
  is raised in hooks, need to pop current frame and raise this raised exception by hook.

[ruby-dev:50582] [Bug #14865]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63727 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 15 insertions, 0 deletions

diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index fe2201a30e..51e5268735 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -896,6 +896,21 @@ class TestSetTraceFunc < Test::Unit::TestCase
     end
   end
 
+  def test_tracepoint_exception_at_c_return
+    assert_nothing_raised(Timeout::Error, 'infinite trace') do
+      assert_normal_exit %q{
+        begin
+          TracePoint.new(:c_return){|tp|
+            raise
+          }.enable{
+            tap{ itself }
+          }
+        rescue
+        end
+      }, '', timeout: 3
+    end
+  end
+
   def test_tracepoint_with_multithreads
     assert_nothing_raised do
       TracePoint.new{