signal.c: directly deliver non-handlable signals

* signal.c (rb_f_kill): directly deliver signals which cannot be
  handled, i.e., SIGKILL and SIGSTOP.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45917 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

signal.c

@@ -464,6 +464,12 @@ rb_f_kill(int argc, VALUE *argv)
 		  case SIGSEGV:
 #ifdef SIGBUS
 		  case SIGBUS:
+#endif
+#ifdef SIGKILL
+		  case SIGKILL:
+#endif
+#ifdef SIGSTOP
+		  case SIGSTOP:
 #endif
 		    ruby_kill(pid, sig);
 		    break;

test/ruby/test_process.rb

@@ -1200,6 +1200,21 @@ class TestProcess < Test::Unit::TestCase
   end
 
   def test_status_kill
+    return unless Process.respond_to?(:kill)
+    return unless Signal.list.include?("KILL")
+
+    with_tmpchdir do
+      write_file("foo", "Process.kill(:KILL, $$); exit(42)")
+      system(RUBY, "foo")
+      s = $?
+      assert_equal([false, true, false, nil],
+                   [s.exited?, s.signaled?, s.stopped?, s.success?],
+                   "[s.exited?, s.signaled?, s.stopped?, s.success?]")
+      assert_equal(false, s.exited?)
+    end
+  end
+
+  def test_status_quit
     return unless Process.respond_to?(:kill)
     return unless Signal.list.include?("QUIT")