1""" 2Test that objective-c expression parser continues to work for optimized build. 3 4Fixed a bug in the expression parser where the 'this' 5or 'self' variable was not properly read if the compiler 6optimized it into a register. 7""" 8 9 10import lldb 11import re 12 13from lldbsuite.test.decorators import * 14from lldbsuite.test.lldbtest import * 15from lldbsuite.test import lldbutil 16 17# rdar://problem/9087739 18# test failure: objc_optimized does not work for "-C clang -A i386" 19 20 21class ObjcOptimizedTestCase(TestBase): 22 myclass = "MyClass" 23 mymethod = "description" 24 method_spec = "-[%s %s]" % (myclass, mymethod) 25 26 @expectedFailureAll(remote=True) 27 def test_break(self): 28 """Test 'expr member' continues to work for optimized build.""" 29 self.build() 30 exe = self.getBuildArtifact("a.out") 31 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 32 33 lldbutil.run_break_set_by_symbol( 34 self, self.method_spec, num_expected_locations=1, sym_exact=True 35 ) 36 37 self.runCmd("run", RUN_SUCCEEDED) 38 self.expect( 39 "thread backtrace", 40 STOPPED_DUE_TO_BREAKPOINT, 41 substrs=["stop reason = breakpoint"], 42 patterns=["frame.*0:.*%s %s" % (self.myclass, self.mymethod)], 43 ) 44 45 self.expect("expression member", startstr="(int) $0 = 5") 46 47 # <rdar://problem/12693963> 48 interp = self.dbg.GetCommandInterpreter() 49 result = lldb.SBCommandReturnObject() 50 interp.HandleCommand("frame variable self", result) 51 output = result.GetOutput() 52 53 desired_pointer = "0x0" 54 55 mo = re.search("0x[0-9a-f]+", output) 56 57 if mo: 58 desired_pointer = mo.group(0) 59 60 self.expect( 61 "expression (self)", 62 substrs=[("(%s *) $1 = " % self.myclass), desired_pointer], 63 ) 64 65 self.expect( 66 "expression self->non_member", 67 error=True, 68 substrs=["does not have a member named 'non_member'"], 69 ) 70