diff --git a/poky/bitbake/lib/bb/tests/event.py b/poky/bitbake/lib/bb/tests/event.py
index d959f2d..ef61891 100644
--- a/poky/bitbake/lib/bb/tests/event.py
+++ b/poky/bitbake/lib/bb/tests/event.py
@@ -13,6 +13,7 @@
 import threading
 import time
 import unittest
+import tempfile
 from unittest.mock import Mock
 from unittest.mock import call
 
@@ -468,6 +469,8 @@
 
     def setUp(self):
         bb.event.worker_pid = EventClassesTest._worker_pid
+        self.d = bb.data.init()
+        bb.parse.siggen = bb.siggen.init(self.d)
 
     def test_Event(self):
         """ Test the Event base class """
@@ -950,3 +953,24 @@
         event = bb.event.FindSigInfoResult(result)
         self.assertEqual(event.result, result)
         self.assertEqual(event.pid, EventClassesTest._worker_pid)
+
+    def test_lineno_in_eventhandler(self):
+        # The error lineno is 5, not 4 since the first line is '\n'
+        error_line = """
+# Comment line1
+# Comment line2
+python test_lineno_in_eventhandler() {
+    This is an error line
+}
+addhandler test_lineno_in_eventhandler
+test_lineno_in_eventhandler[eventmask] = "bb.event.ConfigParsed"
+"""
+
+        with self.assertLogs() as logs:
+            f = tempfile.NamedTemporaryFile(suffix = '.bb')
+            f.write(bytes(error_line, "utf-8"))
+            f.flush()
+            d = bb.parse.handle(f.name, self.d)['']
+
+        output = "".join(logs.output)
+        self.assertTrue(" line 5\n" in output)
diff --git a/poky/bitbake/lib/bb/tests/parse.py b/poky/bitbake/lib/bb/tests/parse.py
index 304bbbe..72d1962 100644
--- a/poky/bitbake/lib/bb/tests/parse.py
+++ b/poky/bitbake/lib/bb/tests/parse.py
@@ -243,3 +243,101 @@
         with self.assertRaises(bb.parse.ParseError):
             d = bb.parse.handle(f.name, self.d)['']
 
+    export_function_recipe = """
+inherit someclass
+"""
+
+    export_function_recipe2 = """
+inherit someclass
+
+do_compile () {
+    false
+}
+
+python do_compilepython () {
+    bb.note("Something else")
+}
+
+"""
+    export_function_class = """
+someclass_do_compile() {
+    true
+}
+
+python someclass_do_compilepython () {
+    bb.note("Something")
+}
+
+EXPORT_FUNCTIONS do_compile do_compilepython
+"""
+
+    export_function_class2 = """
+secondclass_do_compile() {
+    true
+}
+
+python secondclass_do_compilepython () {
+    bb.note("Something")
+}
+
+EXPORT_FUNCTIONS do_compile do_compilepython
+"""
+
+    def test_parse_export_functions(self):
+        def check_function_flags(d):
+            self.assertEqual(d.getVarFlag("do_compile", "func"), 1)
+            self.assertEqual(d.getVarFlag("do_compilepython", "func"), 1)
+            self.assertEqual(d.getVarFlag("do_compile", "python"), None)
+            self.assertEqual(d.getVarFlag("do_compilepython", "python"), "1")
+
+        with tempfile.TemporaryDirectory() as tempdir:
+            self.d.setVar("__bbclasstype", "recipe")
+            recipename = tempdir + "/recipe.bb"
+            os.makedirs(tempdir + "/classes")
+            with open(tempdir + "/classes/someclass.bbclass", "w") as f:
+                f.write(self.export_function_class)
+                f.flush()
+            with open(tempdir + "/classes/secondclass.bbclass", "w") as f:
+                f.write(self.export_function_class2)
+                f.flush()
+
+            with open(recipename, "w") as f:
+                f.write(self.export_function_recipe)
+                f.flush()
+            os.chdir(tempdir)
+            d = bb.parse.handle(recipename, bb.data.createCopy(self.d))['']
+            self.assertIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            recipename2 = tempdir + "/recipe2.bb"
+            with open(recipename2, "w") as f:
+                f.write(self.export_function_recipe2)
+                f.flush()
+
+            d = bb.parse.handle(recipename2, bb.data.createCopy(self.d))['']
+            self.assertNotIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertNotIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            self.assertIn("false", d.getVar("do_compile"))
+            self.assertIn("else", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            with open(recipename, "a+") as f:
+                f.write("\ninherit secondclass\n")
+                f.flush()
+            with open(recipename2, "a+") as f:
+                f.write("\ninherit secondclass\n")
+                f.flush()
+
+            d = bb.parse.handle(recipename, bb.data.createCopy(self.d))['']
+            self.assertIn("secondclass_do_compile", d.getVar("do_compile"))
+            self.assertIn("secondclass_do_compilepython", d.getVar("do_compilepython"))
+            check_function_flags(d)
+
+            d = bb.parse.handle(recipename2, bb.data.createCopy(self.d))['']
+            self.assertNotIn("someclass_do_compile", d.getVar("do_compile"))
+            self.assertNotIn("someclass_do_compilepython", d.getVar("do_compilepython"))
+            self.assertIn("false", d.getVar("do_compile"))
+            self.assertIn("else", d.getVar("do_compilepython"))
+            check_function_flags(d)
+