1 """Test that forward declaration of a data structure gets resolved correctly.""" 2 3 import os, time 4 import unittest2 5 import lldb 6 from lldbtest import * 7 import lldbutil 8 9 class ForwardDeclarationTestCase(TestBase): 10 11 mydir = os.path.join("lang", "c", "forward") 12 13 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 14 @dsym_test 15 def test_with_dsym_and_run_command(self): 16 """Display *bar_ptr when stopped on a function with forward declaration of struct bar.""" 17 self.buildDsym() 18 self.forward_declaration() 19 20 # rdar://problem/8648070 21 # 'expression *bar_ptr' seg faults 22 # rdar://problem/8546815 23 # './dotest.py -v -t forward' fails for test_with_dwarf_and_run_command 24 @dwarf_test 25 def test_with_dwarf_and_run_command(self): 26 """Display *bar_ptr when stopped on a function with forward declaration of struct bar.""" 27 self.buildDwarf() 28 self.forward_declaration() 29 30 def forward_declaration(self): 31 """Display *bar_ptr when stopped on a function with forward declaration of struct bar.""" 32 exe = os.path.join(os.getcwd(), "a.out") 33 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 34 35 # Break inside the foo function which takes a bar_ptr argument. 36 lldbutil.run_break_set_by_symbol (self, "foo", num_expected_locations=1, sym_exact=True) 37 38 self.runCmd("run", RUN_SUCCEEDED) 39 40 # The stop reason of the thread should be breakpoint. 41 self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT, 42 substrs = ['stopped', 43 'stop reason = breakpoint']) 44 45 # The breakpoint should have a hit count of 1. 46 self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE, 47 substrs = [' resolved, hit count = 1']) 48 49 # This should display correctly. 50 # Note that the member fields of a = 1 and b = 2 is by design. 51 self.expect("frame variable --show-types *bar_ptr", VARIABLES_DISPLAYED_CORRECTLY, 52 substrs = ['(bar) *bar_ptr = ', 53 '(int) a = 1', 54 '(int) b = 2']) 55 56 # And so should this. 57 self.expect("expression --show-types -- *bar_ptr", VARIABLES_DISPLAYED_CORRECTLY, 58 substrs = ['(bar)', 59 '(int) a = 1', 60 '(int) b = 2']) 61 62 63 if __name__ == '__main__': 64 import atexit 65 lldb.SBDebugger.Initialize() 66 atexit.register(lambda: lldb.SBDebugger.Terminate()) 67 unittest2.main() 68
