Exception registers aren't supported outside of Darwin

[vharron]

Summary

Updated test for that

[vharron]

sys.platform in ['darwin'] with self.platformIsDarwin()

[clayborg]

Looks good.

[clayborg]

Looks good.

test/python_api/lldbutil/iter/TestRegistersIterator.py

class RegistersIteratorTestCase(TestBase):
 
     def setUp(self):
         # Call super's setUp().
         TestBase.setUp(self)
         # Find the line number to break inside main().
         self.line1 = line_number('main.cpp', '// Set break point at this line.')
 
     @expectedFailureFreeBSD # llvm.org/pr14600 - Exception state registers not supported on FreeBSD
-    @expectedFailureLinux # llvm.org/pr14600 - Exception state registers not supported on Linux
     @python_api_test
     def test_iter_registers(self):
         """Test iterator works correctly for lldbutil.iter_registers()."""
         self.buildDefault()
         self.iter_registers()
 
     def iter_registers(self):
         exe = os.path.join(os.getcwd(), "a.out")
def iter_registers(self):
                     if self.TraceOn():
                         print "\nNumber of floating point registers: %d" % num
                     for reg in REGs:
                         self.assertTrue(reg)
                         if self.TraceOn():
                             print "%s => %s" % (reg.GetName(), reg.GetValue())
 
                     REGs = lldbutil.get_ESRs(frame)
+                    if "darwin" in sys.platform:
                         num = len(REGs)
                         if self.TraceOn():
                             print "\nNumber of exception state registers: %d" % num
                         for reg in REGs:
                             self.assertTrue(reg)
                             if self.TraceOn():
                                 print "%s => %s" % (reg.GetName(), reg.GetValue())
+                    else:
+                        self.assertIsNone(REGs)
 
                     # And these should also work.
                     for kind in ["General Purpose Registers",
-                                 "Floating Point Registers",
-                                 "Exception State Registers"]:
+                                 "Floating Point Registers"]:
                         REGs = lldbutil.get_registers(frame, kind)
                         self.assertTrue(REGs)
 
+                    REGs = lldbutil.get_registers(frame, "Exception State Registers")
+                    if "darwin" in sys.platform:
+                        self.assertIsNotNone(REGs)
+                    else:
+                        self.assertIsNone(REGs)
+
                     # We've finished dumping the registers for frame #0.
                     break
 
 
 if __name__ == '__main__':
     import atexit
     lldb.SBDebugger.Initialize()
     atexit.register(lambda: lldb.SBDebugger.Terminate())
     unittest2.main()