| """Test stepping and setting breakpoints in indirect and re-exported symbols.""" |
| |
| 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 TestIndirectFunctions(TestBase): |
| |
| mydir = TestBase.compute_mydir(__file__) |
| |
| def setUp(self): |
| # Call super's setUp(). |
| TestBase.setUp(self) |
| # Find the line numbers that we will step to in main: |
| self.main_source = "main.c" |
| |
| @skipUnlessDarwin |
| @add_test_categories(['pyapi']) |
| def test_with_python_api(self): |
| """Test stepping and setting breakpoints in indirect and re-exported symbols.""" |
| self.build() |
| exe = self.getBuildArtifact("a.out") |
| |
| target = self.dbg.CreateTarget(exe) |
| self.assertTrue(target, VALID_TARGET) |
| |
| if self.platformIsDarwin(): |
| lib1 = self.getBuildArtifact('libindirect.dylib') |
| lib2 = self.getBuildArtifact('libreexport.dylib') |
| self.registerSharedLibrariesWithTarget(target, [lib1, lib2]) |
| |
| self.main_source_spec = lldb.SBFileSpec(self.main_source) |
| |
| break1 = target.BreakpointCreateBySourceRegex( |
| "Set breakpoint here to step in indirect.", self.main_source_spec) |
| self.assertTrue(break1, VALID_BREAKPOINT) |
| |
| break2 = target.BreakpointCreateBySourceRegex( |
| "Set breakpoint here to step in reexported.", self.main_source_spec) |
| self.assertTrue(break2, VALID_BREAKPOINT) |
| |
| # Now launch the process, and do not stop at entry point. |
| process = target.LaunchSimple( |
| None, None, self.get_process_working_directory()) |
| |
| self.assertTrue(process, PROCESS_IS_VALID) |
| |
| # The stop reason of the thread should be breakpoint. |
| threads = lldbutil.get_threads_stopped_at_breakpoint(process, break1) |
| if len(threads) != 1: |
| self.fail("Failed to stop at breakpoint 1.") |
| |
| thread = threads[0] |
| |
| # Now do a step-into, and we should end up in the hidden target of this |
| # indirect function. |
| thread.StepInto() |
| curr_function = thread.GetFrameAtIndex(0).GetFunctionName() |
| self.assertTrue( |
| curr_function == "call_through_indirect_hidden", |
| "Stepped into indirect symbols.") |
| |
| # Now set a breakpoint using the indirect symbol name, and make sure we |
| # get to that: |
| break_indirect = target.BreakpointCreateByName("call_through_indirect") |
| self.assertTrue(break_indirect, VALID_BREAKPOINT) |
| |
| # Now continue should take us to the second call through the indirect |
| # symbol: |
| |
| threads = lldbutil.continue_to_breakpoint(process, break_indirect) |
| self.assertTrue( |
| len(threads) == 1, |
| "Stopped at breakpoint in indirect function.") |
| curr_function = thread.GetFrameAtIndex(0).GetFunctionName() |
| self.assertTrue( |
| curr_function == "call_through_indirect_hidden", |
| "Stepped into indirect symbols.") |
| |
| # Delete this breakpoint so it won't get in the way: |
| target.BreakpointDelete(break_indirect.GetID()) |
| |
| # Now continue to the site of the first re-exported function call in |
| # main: |
| threads = lldbutil.continue_to_breakpoint(process, break2) |
| |
| # This is stepping Into through a re-exported symbol to an indirect |
| # symbol: |
| thread.StepInto() |
| curr_function = thread.GetFrameAtIndex(0).GetFunctionName() |
| self.assertTrue( |
| curr_function == "call_through_indirect_hidden", |
| "Stepped into indirect symbols.") |
| |
| # And the last bit is to set a breakpoint on the re-exported symbol and |
| # make sure we are again in out target function. |
| break_reexported = target.BreakpointCreateByName( |
| "reexport_to_indirect") |
| self.assertTrue(break_reexported, VALID_BREAKPOINT) |
| |
| # Now continue should take us to the second call through the indirect |
| # symbol: |
| |
| threads = lldbutil.continue_to_breakpoint(process, break_reexported) |
| self.assertTrue( |
| len(threads) == 1, |
| "Stopped at breakpoint in reexported function target.") |
| curr_function = thread.GetFrameAtIndex(0).GetFunctionName() |
| self.assertTrue( |
| curr_function == "call_through_indirect_hidden", |
| "Stepped into indirect symbols.") |
