TestFunctionTypes.py revision 6475c42148a8ea1ca86e5db465db7eca742d897d
1fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen"""Test variable with function ptr type and that break on the function works.""" 2fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 3fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chenimport os, time 475e28f942c1b9f9c6d5a0d5f2efd037cbbc9fc74Johnny Chenimport unittest2 5a1affab962b9f57b64d798ea7fa93dc71d4cc0b1Johnny Chenimport lldb 6d85dae5a089177582aff128c897c78332167fe08Johnny Chenfrom lldbtest import * 7431d839a33e9a274e705f7a268a1c9de2ffc2da2Jim Inghamimport lldbutil 8fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 91c42e8684d26e1473f92c799eeae65a3eec991d6Johnny Chenclass FunctionTypesTestCase(TestBase): 10fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 11de2f1ed2a5dfe306aa6c5d48baf65808608cefb5Johnny Chen mydir = os.path.join("lang", "c", "function_types") 12fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 13d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 1421b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dsym_test 15d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen def test_with_dsym(self): 16d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen """Test 'callback' has function ptr type, then break on the function.""" 17d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen self.buildDsym() 18d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen self.function_types() 19d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen 2021b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dwarf_test 21d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen def test_with_dwarf(self): 22d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen """Test 'callback' has function ptr type, then break on the function.""" 23d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen self.buildDwarf() 24d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen self.function_types() 256c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 266c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 2721b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dsym_test 286c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan def test_pointers_with_dsym(self): 296c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan """Test that a function pointer to 'printf' works and can be called.""" 306c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.buildDsym() 31c01c05c7a8a198761fb917308dd53e6e143384adSean Callanan self.function_pointers() 326c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 3321b1984e161b0cadee331d32bfd721eccfdf4b1fJohnny Chen @dwarf_test 346c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan def test_pointers_with_dwarf(self): 356c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan """Test that a function pointer to 'printf' works and can be called.""" 366c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.buildDwarf() 37c01c05c7a8a198761fb917308dd53e6e143384adSean Callanan self.function_pointers() 38d9ed552026a5d2842d95b2852f33346e867e9799Johnny Chen 39143914211a7e009c90a7d88e7584513d7a4af67fJohnny Chen def setUp(self): 400910eb32b94bd67b0357d34d0951aad197742569Johnny Chen # Call super's setUp(). 410910eb32b94bd67b0357d34d0951aad197742569Johnny Chen TestBase.setUp(self) 42143914211a7e009c90a7d88e7584513d7a4af67fJohnny Chen # Find the line number to break inside main(). 43143914211a7e009c90a7d88e7584513d7a4af67fJohnny Chen self.line = line_number('main.c', '// Set break point at this line.') 44143914211a7e009c90a7d88e7584513d7a4af67fJohnny Chen 456c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan def runToBreakpoint(self): 46fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen exe = os.path.join(os.getcwd(), "a.out") 474f995f0718299696719089084a622835b6a7b4b8Johnny Chen self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 486c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 49fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # Break inside the main. 50431d839a33e9a274e705f7a268a1c9de2ffc2da2Jim Ingham lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True) 516c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 521bb9f9a3917c7ac7228d0a81a0ff8a225165800aJohnny Chen self.runCmd("run", RUN_SUCCEEDED) 536c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 54fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # The stop reason of the thread should be breakpoint. 554f995f0718299696719089084a622835b6a7b4b8Johnny Chen self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, 566c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan substrs = ['stopped', 576c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 'stop reason = breakpoint']) 586c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 59fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # The breakpoint should have a hit count of 1. 6041950cc77813637e6c67b069e4ad2faf8c5f6fa7Caroline Tice self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE, 616c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan substrs = [' resolved, hit count = 1']) 626c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 636c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan def function_types(self): 646c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan """Test 'callback' has function ptr type, then break on the function.""" 656c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 666c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.runToBreakpoint() 67fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 68fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # Check that the 'callback' variable display properly. 696475c42148a8ea1ca86e5db465db7eca742d897dGreg Clayton self.expect("frame variable --show-types callback", VARIABLES_DISPLAYED_CORRECTLY, 70397636ec9b675f4d917765400419d6b4805bb8a3Johnny Chen startstr = '(int (*)(const char *)) callback =') 71fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 72fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # And that we can break on the callback function. 73431d839a33e9a274e705f7a268a1c9de2ffc2da2Jim Ingham lldbutil.run_break_set_by_symbol (self, "string_not_empty", num_expected_locations=1, sym_exact=True) 744f995f0718299696719089084a622835b6a7b4b8Johnny Chen self.runCmd("continue") 75fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 76fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen # Check that we do indeed stop on the string_not_empty function. 774f995f0718299696719089084a622835b6a7b4b8Johnny Chen self.expect("process status", STOPPED_DUE_TO_BREAKPOINT, 7859ea45fc85deacf0b8ca8250f116b7cc7b3691a5Johnny Chen substrs = ['a.out`string_not_empty', 794f995f0718299696719089084a622835b6a7b4b8Johnny Chen 'stop reason = breakpoint']) 80fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 816c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan def function_pointers(self): 826c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan """Test that a function pointer to 'printf' works and can be called.""" 836c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 846c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.runToBreakpoint() 856c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 866c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.expect("expr string_not_empty", 876c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan substrs = ['(int (*)(const char *)) $0 = ', '(a.out`']) 886c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 89081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen if sys.platform.startswith("darwin"): 90081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen regexps = ['lib.*\.dylib`printf'] 91081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen else: 92081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen regexps = ['printf'] 936c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.expect("expr (int (*)(const char*, ...))printf", 94081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen substrs = ['(int (*)(const char *, ...)) $1 = '], 95081137057abc6b2c32eb077bde7459f46544f7d8Johnny Chen patterns = regexps) 966c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan 976c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan self.expect("expr $1(\"Hello world\\n\")", 986c98ba7d2b7f5e3381cbba5f24e97673c47d109aSean Callanan startstr = '(int) $2 = 12') 99fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen 100fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chenif __name__ == '__main__': 10188f8304a5b7864ce3c6966bc0250fa3b7069aef0Johnny Chen import atexit 102fce55e0f97822a11a92cacb556c38bf69c79af25Johnny Chen lldb.SBDebugger.Initialize() 10388f8304a5b7864ce3c6966bc0250fa3b7069aef0Johnny Chen atexit.register(lambda: lldb.SBDebugger.Terminate()) 10475e28f942c1b9f9c6d5a0d5f2efd037cbbc9fc74Johnny Chen unittest2.main() 105