| """Show bitfields and check that they display correctly.""" |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| |
| class BitfieldsTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @dsym_test |
| def test_with_dsym_and_run_command(self): |
| """Test 'frame variable ...' on a variable with bitfields.""" |
| self.buildDsym() |
| self.bitfields_variable() |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @python_api_test |
| @dsym_test |
| def test_with_dsym_and_python_api(self): |
| """Use Python APIs to inspect a bitfields variable.""" |
| self.buildDsym() |
| self.bitfields_variable_python() |
| |
| @dwarf_test |
| def test_with_dwarf_and_run_command(self): |
| """Test 'frame variable ...' on a variable with bitfields.""" |
| self.buildDwarf() |
| self.bitfields_variable() |
| |
| @python_api_test |
| @dwarf_test |
| @expectedFailureGcc # GCC (4.6/4.7) generates incorrect code with unnamed bitfields. |
| def test_with_dwarf_and_python_api(self): |
| """Use Python APIs to inspect a bitfields variable.""" |
| self.buildDwarf() |
| self.bitfields_variable_python() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number to break inside main(). |
| self.line = line_number('main.c', '// Set break point at this line.') |
| |
| def bitfields_variable(self): |
| """Test 'frame variable ...' on a variable with bitfields.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Break inside the main. |
| lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ['stopped', |
| 'stop reason = breakpoint']) |
| |
| # The breakpoint should have a hit count of 1. |
| self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE, |
| substrs = [' resolved, hit count = 1']) |
| |
| # This should display correctly. |
| self.expect("frame variable --show-types bits", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['(uint32_t:1) b1 = 1', |
| '(uint32_t:2) b2 = 3', |
| '(uint32_t:3) b3 = 7', |
| '(uint32_t) b4 = 15', |
| '(uint32_t:5) b5 = 31', |
| '(uint32_t:6) b6 = 63', |
| '(uint32_t:7) b7 = 127', |
| '(uint32_t:4) four = 15']) |
| |
| # And so should this. |
| # rdar://problem/8348251 |
| self.expect("frame variable --show-types", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['(uint32_t:1) b1 = 1', |
| '(uint32_t:2) b2 = 3', |
| '(uint32_t:3) b3 = 7', |
| '(uint32_t) b4 = 15', |
| '(uint32_t:5) b5 = 31', |
| '(uint32_t:6) b6 = 63', |
| '(uint32_t:7) b7 = 127', |
| '(uint32_t:4) four = 15']) |
| |
| self.expect("expr (bits.b1)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '1']) |
| self.expect("expr (bits.b2)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '3']) |
| self.expect("expr (bits.b3)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '7']) |
| self.expect("expr (bits.b4)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '15']) |
| self.expect("expr (bits.b5)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '31']) |
| self.expect("expr (bits.b6)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '63']) |
| self.expect("expr (bits.b7)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '127']) |
| self.expect("expr (bits.four)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '15']) |
| |
| self.expect("frame variable --show-types more_bits", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['(uint32_t:3) a = 3', |
| '(uint8_t:1) b = \'\\0\'', |
| '(uint8_t:1) c = \'\\x01\'', |
| '(uint8_t:1) d = \'\\0\'']) |
| |
| self.expect("expr (more_bits.a)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint32_t', '3']) |
| self.expect("expr (more_bits.b)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint8_t', '\\0']) |
| self.expect("expr (more_bits.c)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint8_t', '\\x01']) |
| self.expect("expr (more_bits.d)", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['uint8_t', '\\0']) |
| |
| self.expect("target modules dump symfile a.out", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['Bits', 'uint32_t b3 : 3', |
| 'MoreBits', 'uint32_t a : 3']) |
| |
| def bitfields_variable_python(self): |
| """Use Python APIs to inspect a bitfields variable.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| breakpoint = target.BreakpointCreateByLocation("main.c", self.line) |
| self.assertTrue(breakpoint, VALID_BREAKPOINT) |
| |
| process = target.LaunchSimple (None, None, self.get_process_working_directory()) |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| thread = target.GetProcess().GetThreadAtIndex(0) |
| if thread.GetStopReason() != lldb.eStopReasonBreakpoint: |
| from lldbutil import stop_reason_to_str |
| self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS % |
| stop_reason_to_str(thread.GetStopReason())) |
| |
| # The breakpoint should have a hit count of 1. |
| self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE) |
| |
| # Lookup the "bits" variable which contains 8 bitfields. |
| frame = thread.GetFrameAtIndex(0) |
| bits = frame.FindVariable("bits") |
| self.DebugSBValue(bits) |
| self.assertTrue(bits.GetTypeName() == 'Bits', "bits.GetTypeName() == 'Bits'"); |
| self.assertTrue(bits.GetNumChildren() == 10, "bits.GetNumChildren() == 10"); |
| test_compiler = self.getCompiler() |
| if "gcc" in test_compiler: |
| # Clang ignores the align attribute, so this structure isn't padded out to |
| # 32 bytes there as the test author intended. Suppress this test for clang |
| # till somebody has a chance to go rewrite the test source to be this big portably. |
| self.assertTrue(bits.GetByteSize() == 32, "bits.GetByteSize() == 32"); |
| |
| # Notice the pattern of int(b1.GetValue(), 0). We pass a base of 0 |
| # so that the proper radix is determined based on the contents of the |
| # string. |
| b1 = bits.GetChildMemberWithName("b1") |
| self.DebugSBValue(b1) |
| self.assertTrue(b1.GetName() == "b1" and |
| b1.GetTypeName() == "uint32_t:1" and |
| b1.IsInScope() and |
| int(b1.GetValue(), 0) == 1, |
| 'bits.b1 has type uint32_t:1, is in scope, and == 1') |
| |
| b7 = bits.GetChildMemberWithName("b7") |
| self.DebugSBValue(b7) |
| self.assertTrue(b7.GetName() == "b7" and |
| b7.GetTypeName() == "uint32_t:7" and |
| b7.IsInScope() and |
| int(b7.GetValue(), 0) == 127, |
| 'bits.b7 has type uint32_t:7, is in scope, and == 127') |
| |
| four = bits.GetChildMemberWithName("four") |
| self.DebugSBValue(four) |
| self.assertTrue(four.GetName() == "four" and |
| four.GetTypeName() == "uint32_t:4" and |
| four.IsInScope() and |
| int(four.GetValue(), 0) == 15, |
| 'bits.four has type uint32_t:4, is in scope, and == 15') |
| |
| # Now kill the process, and we are done. |
| rc = target.GetProcess().Kill() |
| self.assertTrue(rc.Success()) |
| |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |