1"""Test that forward declaration of a data structure gets resolved correctly.""" 2 3 4import lldb 5from lldbsuite.test.lldbtest import * 6from lldbsuite.test.decorators import * 7import lldbsuite.test.lldbutil as lldbutil 8 9 10class ForwardDeclarationTestCase(TestBase): 11 def do_test(self, dictionary=None): 12 """Display *bar_ptr when stopped on a function with forward declaration of struct bar.""" 13 self.build(dictionary=dictionary) 14 exe = self.getBuildArtifact("a.out") 15 self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) 16 17 # Break inside the foo function which takes a bar_ptr argument. 18 lldbutil.run_break_set_by_symbol( 19 self, "foo", num_expected_locations=1, sym_exact=True 20 ) 21 22 self.runCmd("run", RUN_SUCCEEDED) 23 24 # The stop reason of the thread should be breakpoint. 25 self.expect( 26 "thread list", 27 STOPPED_DUE_TO_BREAKPOINT, 28 substrs=["stopped", "stop reason = breakpoint"], 29 ) 30 31 # The breakpoint should have a hit count of 1. 32 lldbutil.check_breakpoint(self, bpno=1, expected_hit_count=1) 33 34 # This should display correctly. 35 # Note that the member fields of a = 1 and b = 2 is by design. 36 self.expect( 37 "frame variable --show-types *bar_ptr", 38 VARIABLES_DISPLAYED_CORRECTLY, 39 substrs=["(bar) *bar_ptr = ", "(int) a = 1", "(int) b = 2"], 40 ) 41 42 # And so should this. 43 self.expect( 44 "expression --show-types -- *bar_ptr", 45 VARIABLES_DISPLAYED_CORRECTLY, 46 substrs=["(bar)", "(int) a = 1", "(int) b = 2"], 47 ) 48 49 def test(self): 50 self.do_test() 51 52 @no_debug_info_test 53 @skipIfDarwin 54 @skipIf(compiler=no_match("clang")) 55 @skipIf(compiler_version=["<", "8.0"]) 56 @expectedFailureAll(oslist=["windows"]) 57 def test_debug_names(self): 58 """Test that we are able to find complete types when using DWARF v5 59 accelerator tables""" 60 self.do_test(dict(CFLAGS_EXTRAS="-gdwarf-5 -gpubnames")) 61