| """ |
| Test the lldb disassemble command on each call frame when stopped on C's ctor. |
| """ |
| |
| from __future__ import print_function |
| |
| |
| import os |
| import time |
| import lldb |
| from lldbsuite.test.decorators import * |
| from lldbsuite.test.lldbtest import * |
| from lldbsuite.test import lldbutil |
| |
| |
| class IterateFrameAndDisassembleTestCase(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def test_and_run_command(self): |
| """Disassemble each call frame when stopped on C's constructor.""" |
| self.build() |
| self.breakOnCtor() |
| |
| raw_output = self.res.GetOutput() |
| frameRE = re.compile(r""" |
| ^\s\sframe # heading for the frame info, |
| .* # wildcard, and |
| 0x[0-9a-f]{16} # the frame pc, and |
| \sa.out`(.+) # module`function, and |
| \s\+\s # the rest ' + ....' |
| """, re.VERBOSE) |
| for line in raw_output.split(os.linesep): |
| match = frameRE.search(line) |
| if match: |
| function = match.group(1) |
| #print("line:", line) |
| #print("function:", function) |
| self.runCmd("disassemble -n '%s'" % function) |
| |
| @add_test_categories(['pyapi']) |
| def test_and_python_api(self): |
| """Disassemble each call frame when stopped on C's constructor.""" |
| self.build() |
| self.breakOnCtor() |
| |
| # Now use the Python API to get at each function on the call stack and |
| # disassemble it. |
| target = self.dbg.GetSelectedTarget() |
| process = target.GetProcess() |
| thread = lldbutil.get_stopped_thread( |
| process, lldb.eStopReasonBreakpoint) |
| self.assertIsNotNone(thread) |
| depth = thread.GetNumFrames() |
| for i in range(depth - 1): |
| frame = thread.GetFrameAtIndex(i) |
| function = frame.GetFunction() |
| # Print the function header. |
| if self.TraceOn(): |
| print() |
| print(function) |
| if function: |
| # Get all instructions for this function and print them out. |
| insts = function.GetInstructions(target) |
| for inst in insts: |
| # We could simply do 'print inst' to print out the disassembly. |
| # But we want to print to stdout only if self.TraceOn() is |
| # True. |
| disasm = str(inst) |
| if self.TraceOn(): |
| print(disasm) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line number to break for main.cpp. |
| self.line = line_number('main.cpp', '// Set break point at this line.') |
| |
| def breakOnCtor(self): |
| """Setup/run the program so it stops on C's constructor.""" |
| exe = self.getBuildArtifact("a.out") |
| self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) |
| |
| # Break on the ctor function of class C. |
| bpno = lldbutil.run_break_set_by_file_and_line( |
| self, "main.cpp", self.line, num_expected_locations=-1) |
| |
| 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 %d.' % (bpno)]) |
| |
| # This test was failing because we fail to put the C:: in front of constructore. |
| # We should maybe make another testcase to cover that specifically, but we shouldn't |
| # fail this whole testcase for an inessential issue. |
| # We should be stopped on the ctor function of class C. |
| # self.expect("thread backtrace", BACKTRACE_DISPLAYED_CORRECTLY, |
| # substrs = ['C::C']) |