| """ |
| Test that break on a struct declaration has no effect. |
| |
| Instead, the first executable statement is set as the breakpoint. |
| """ |
| |
| import os, time |
| import unittest2 |
| import lldb |
| from lldbtest import * |
| import lldbutil |
| |
| class StructTypesTestCase(TestBase): |
| |
| mydir = os.path.join("lang", "c", "struct_types") |
| |
| # rdar://problem/12566646 |
| @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") |
| @dsym_test |
| def test_with_dsym(self): |
| """Test that break on a struct declaration has no effect.""" |
| self.buildDsym() |
| self.struct_types() |
| |
| # rdar://problem/12566646 |
| @dwarf_test |
| def test_with_dwarf(self): |
| """Test that break on a struct declaration has no effect.""" |
| self.buildDwarf() |
| self.struct_types() |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number to break for main.c. |
| self.source = 'main.c' |
| self.line = line_number(self.source, '// Set break point at this line.') |
| self.first_executable_line = line_number(self.source, |
| '// This is the first executable statement.') |
| self.return_line = line_number(self.source, '// This is the return statement.') |
| |
| def struct_types(self): |
| """Test that break on a struct declaration has no effect and test structure access for zero sized arrays.""" |
| exe = os.path.join(os.getcwd(), "a.out") |
| |
| # Create a target by the debugger. |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| # Break on the struct declration statement in main.c. |
| lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=False) |
| lldbutil.run_break_set_by_file_and_line (self, "main.c", self.return_line, num_expected_locations=1, loc_exact=True) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple(None, None, os.getcwd()) |
| |
| if not process: |
| self.fail("SBTarget.Launch() failed") |
| |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| |
| # We should be stopped on the first executable statement within the |
| # function where the original breakpoint was attempted. |
| self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT, |
| substrs = ['main.c:%d' % self.first_executable_line, |
| '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']) |
| |
| process.Continue() |
| thread = lldbutil.get_stopped_thread(process, lldb.eStopReasonBreakpoint) |
| |
| # Test zero length array access and make sure it succeeds with "frame variable" |
| self.expect("frame variable pt.padding[0]", |
| DATA_TYPES_DISPLAYED_CORRECTLY, |
| substrs = ["pt.padding[0] = '"]) |
| self.expect("frame variable pt.padding[1]", |
| DATA_TYPES_DISPLAYED_CORRECTLY, |
| substrs = ["pt.padding[1] = '"]) |
| # Test zero length array access and make sure it succeeds with "expression" |
| self.expect("expression -- (pt.padding[0])", |
| DATA_TYPES_DISPLAYED_CORRECTLY, |
| substrs = ["(char)", " = '"]) |
| |
| # The padding should be an array of size 0 |
| self.expect("image lookup -t point_tag", |
| DATA_TYPES_DISPLAYED_CORRECTLY, |
| substrs = ['padding[]']) # Once rdar://problem/12566646 is fixed, this should display correctly |
| |
| self.expect("expression -- &pt == (struct point_tag*)0", |
| substrs = ['false']) |
| |
| if __name__ == '__main__': |
| import atexit |
| lldb.SBDebugger.Initialize() |
| atexit.register(lambda: lldb.SBDebugger.Terminate()) |
| unittest2.main() |