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