""" Test lldb ability to unwind a stack with a function containing a call to the '__builtin_trap' intrinsic, which GCC (4.6) encodes to an illegal opcode. """ import lldb from lldbsuite.test.decorators import * from lldbsuite.test.lldbtest import * from lldbsuite.test import lldbutil class BuiltinTrapTestCase(TestBase): def setUp(self): # Call super's setUp(). TestBase.setUp(self) # Find the line number to break at. self.line = line_number("main.cpp", "// Set break point at this line.") # gcc generates incorrect linetable @expectedFailureAll(archs="arm", compiler="gcc", triple=".*-android") @expectedFailureAll(archs=["aarch64"], oslist=no_match(["freebsd", "linux"])) @skipIfWindows def test_with_run_command(self): """Test that LLDB handles a function with __builtin_trap correctly.""" self.build() self.runCmd("file " + self.getBuildArtifact("a.out"), CURRENT_EXECUTABLE_SET) lldbutil.run_break_set_by_file_and_line( self, "main.cpp", 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"], ) # print backtrace, expect both 'bar' and 'main' functions to be listed self.expect("bt", substrs=["bar", "main"]) # go up one frame self.runCmd("up", RUN_SUCCEEDED) # evaluate a local self.expect("expression foo", substrs=["= 5"])