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"""Test lldb reloads the inferior after it was changed during the session."""
from __future__ import print_function
import lldb_shared
import os, time
import lldb
from lldbtest import *
import lldbutil
class ChangedInferiorTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@skipIfHostWindows
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 = os.path.join(os.getcwd(), "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")
# Prod the lldb-platform that we have a newly built inferior ready.
if lldb.lldbtest_remote_sandbox:
self.runCmd("file " + self.exe, CURRENT_EXECUTABLE_SET)
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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