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"""Test lldb reloads the inferior after it was changed during the session."""
import time
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import configuration
from lldbsuite.test import lldbutil
class ChangedInferiorTestCase(TestBase):
@skipIf(hostoslist=["windows"])
@no_debug_info_test
def test_inferior_crashing(self):
"""Test lldb reloads the inferior after it was changed during the session."""
self.build()
self.inferior_crashing()
self.cleanup()
# lldb needs to recognize the inferior has changed. If lldb needs to check the
# new module timestamp, make sure it is not the same as the old one, so add a
# 1 second delay.
time.sleep(1)
d = {"C_SOURCES": "main2.c"}
self.build(dictionary=d)
self.setTearDownCleanup(dictionary=d)
self.inferior_not_crashing()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number of the crash.
self.line1 = line_number("main.c", "// Crash here.")
self.line2 = line_number("main2.c", "// Not crash here.")
def inferior_crashing(self):
"""Inferior crashes upon launching; lldb should catch the event and stop."""
self.exe = self.getBuildArtifact("a.out")
self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET)
self.runCmd("run", RUN_SUCCEEDED)
# We should have one crashing thread
self.assertEqual(
len(
lldbutil.get_crashed_threads(
self, self.dbg.GetSelectedTarget().GetProcess()
)
),
1,
STOPPED_DUE_TO_EXC_BAD_ACCESS,
)
# And it should report the correct line number.
self.expect("thread backtrace all", substrs=["main.c:%d" % self.line1])
def inferior_not_crashing(self):
"""Test lldb reloads the inferior after it was changed during the session."""
self.runCmd("process kill")
self.runCmd("run", RUN_SUCCEEDED)
self.runCmd("process status")
self.assertNotEqual(
len(
lldbutil.get_crashed_threads(
self, self.dbg.GetSelectedTarget().GetProcess()
)
),
1,
"Inferior changed, but lldb did not perform a reload",
)
# Break inside the main.
lldbutil.run_break_set_by_file_and_line(
self, "main2.c", self.line2, 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"],
)
self.runCmd("frame variable int_ptr")
self.expect("frame variable *int_ptr", substrs=["= 7"])
self.expect("expression *int_ptr", substrs=["= 7"])
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