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"""Test stepping and setting breakpoints in indirect and re-exported symbols."""
from __future__ import print_function
import os, time
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
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 = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
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.")
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