| """ |
| Test that objective-c expression parser continues to work for optimized build. |
| |
| http://llvm.org/viewvc/llvm-project?rev=126973&view=rev |
| Fixed a bug in the expression parser where the 'this' |
| or 'self' variable was not properly read if the compiler |
| optimized it into a register. |
| """ |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| import re |
| |
| # rdar://problem/9087739 |
| # test failure: objc_optimized does not work for "-C clang -A i386" |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| class ObjcOptimizedTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| myclass = "MyClass" |
| mymethod = "description" |
| method_spec = "-[%s %s]" % (myclass, mymethod) |
| |
| @dsym_test |
| def test_break_with_dsym(self): |
| """Test 'expr member' continues to work for optimized build.""" |
| self.buildDsym() |
| self.objc_optimized() |
| |
| @dwarf_test |
| def test_break_with_dwarf(self): |
| """Test 'expr member' continues to work for optimized build.""" |
| self.buildDwarf() |
| self.objc_optimized() |
| |
| def objc_optimized(self): |
| """Test 'expr member' continues to work for optimized build.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| lldbutil.run_break_set_by_symbol (self, self.method_spec, num_expected_locations=1, sym_exact=True) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ["stop reason = breakpoint"], |
| patterns = ["frame.*0:.*%s %s" % (self.myclass, self.mymethod)]) |
| |
| self.expect('expression member', |
| startstr = "(int) $0 = 5") |
| |
| # <rdar://problem/12693963> |
| interp = self.dbg.GetCommandInterpreter() |
| result = lldb.SBCommandReturnObject() |
| interp.HandleCommand('frame variable self', result) |
| output = result.GetOutput() |
| |
| desired_pointer = "0x0" |
| |
| mo = re.search("0x[0-9a-f]+", output) |
| |
| if mo: |
| desired_pointer = mo.group(0) |
| |
| self.expect('expression (self)', |
| substrs = [("(%s *) $1 = " % self.myclass), desired_pointer]) |
| |
| self.expect('expression self->non_member', error=True, |
| substrs = ["does not have a member named 'non_member'"]) |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |
