| """Show bitfields and check that they display correctly.""" |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| |
| class BitfieldsTestCase(TestBase): |
| |
| mydir = "bitfields" |
| |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| 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") |
| def test_with_dsym_and_python_api(self): |
| """Use Python APIs to inspect a bitfields variable.""" |
| self.buildDsym() |
| self.bitfields_variable_python() |
| |
| def test_with_dwarf_and_run_command(self): |
| """Test 'frame variable ...' on a variable with bitfields.""" |
| self.buildDwarf() |
| self.bitfields_variable() |
| |
| 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): |
| super(BitfieldsTestCase, self).setUp() |
| # 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. |
| self.expect("breakpoint set -f main.c -l %d" % self.line, |
| BREAKPOINT_CREATED, |
| startstr = "Breakpoint created: 1: file ='main.c', line = %d, locations = 1" % |
| self.line) |
| |
| self.runCmd("run", RUN_SUCCEEDED) |
| |
| # The stop reason of the thread should be breakpoint. |
| self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ['state is Stopped', |
| 'stop reason = breakpoint']) |
| |
| # The breakpoint should have a hit count of 1. |
| self.expect("breakpoint list", BREAKPOINT_HIT_ONCE, |
| substrs = [' resolved, hit count = 1']) |
| |
| # This should display correctly. |
| self.expect("frame variable bits", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['(uint32_t:1) b1 = 1,', |
| '(uint32_t:2) b2 = 3,', |
| '(uint32_t:3) b3 = 7,', |
| '(uint32_t:4) 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", VARIABLES_DISPLAYED_CORRECTLY, |
| substrs = ['(uint32_t:1) b1 = 1,', |
| '(uint32_t:2) b2 = 3,', |
| '(uint32_t:3) b3 = 7,', |
| '(uint32_t:4) b4 = 15,', |
| '(uint32_t:5) b5 = 31,', |
| '(uint32_t:6) b6 = 63,', |
| '(uint32_t:7) b7 = 127,', |
| '(uint32_t:4) four = 15']) |
| |
| 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.IsValid(), VALID_TARGET) |
| |
| breakpoint = target.BreakpointCreateByLocation("main.c", self.line) |
| self.assertTrue(breakpoint.IsValid(), VALID_BREAKPOINT) |
| |
| self.runCmd("run", RUN_SUCCEEDED, setCookie=False) |
| # This does not work, and results in the process stopped at dyld_start? |
| #process = target.LaunchProcess([''], [''], os.ctermid(), False) |
| |
| self.process = target.GetProcess() |
| self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| thread = target.GetProcess().GetThreadAtIndex(0) |
| self.assertTrue(thread.GetStopReason() == lldb.eStopReasonBreakpoint, |
| STOPPED_DUE_TO_BREAKPOINT) |
| |
| # 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.LookupVar("bits") |
| self.DebugSBValue(frame, bits) |
| self.assertTrue(bits.GetTypeName() == "Bits" and |
| bits.GetNumChildren() == 8 and |
| bits.GetByteSize() == 4, |
| "(Bits)bits with byte size of 4 and 8 children") |
| |
| # Notice the pattern of int(b1.GetValue(frame), 0). We pass a base of 0 |
| # so that the proper radix is determined based on the contents of the |
| # string. |
| b1 = bits.GetChildAtIndex(0) |
| self.DebugSBValue(frame, b1) |
| self.assertTrue(b1.GetName() == "b1" and |
| b1.GetTypeName() == "uint32_t:1" and |
| b1.IsInScope(frame) and |
| int(b1.GetValue(frame), 0) == 1, |
| 'bits.b1 has type uint32_t:1, is in scope, and == 1') |
| |
| b7 = bits.GetChildAtIndex(6) |
| self.DebugSBValue(frame, b7) |
| self.assertTrue(b7.GetName() == "b7" and |
| b7.GetTypeName() == "uint32_t:7" and |
| b7.IsInScope(frame) and |
| int(b7.GetValue(frame), 0) == 127, |
| 'bits.b7 has type uint32_t:7, is in scope, and == 127') |
| |
| four = bits.GetChildAtIndex(7) |
| self.DebugSBValue(frame, four) |
| self.assertTrue(four.GetName() == "four" and |
| four.GetTypeName() == "uint32_t:4" and |
| four.IsInScope(frame) and |
| int(four.GetValue(frame), 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() |