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"""
Test that lldb stop-hook works for multiple threads.
"""
import os, time
import unittest2
import lldb
import pexpect
from lldbtest import *
class StopHookForMultipleThreadsTestCase(TestBase):
mydir = os.path.join("functionalities", "stop-hook", "multiple_threads")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
def test_stop_hook_multiple_threads_with_dsym(self):
"""Test that lldb stop-hook works for multiple threads."""
self.buildDsym(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.stop_hook_multiple_threads()
def test_stop_hook_multiple_threads_with_dwarf(self):
"""Test that lldb stop-hook works for multiple threads."""
self.buildDwarf(dictionary=self.d)
self.setTearDownCleanup(dictionary=self.d)
self.stop_hook_multiple_threads()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Our simple source filename.
self.source = 'main.cpp'
# Find the line number to break inside main().
self.first_stop = line_number(self.source, '// Set break point at this line, and add a stop-hook.')
self.thread_function = line_number(self.source, '// Break here to test that the stop-hook mechanism works for multiple threads.')
# Build dictionary to have unique executable names for each test method.
self.exe_name = self.testMethodName
self.d = {'CXX_SOURCES': self.source, 'EXE': self.exe_name}
def stop_hook_multiple_threads(self):
"""Test that lldb stop-hook works for multiple threads."""
exe = os.path.join(os.getcwd(), self.exe_name)
prompt = "(lldb) "
# So that the child gets torn down after the test.
self.child = pexpect.spawn('%s %s' % (self.lldbHere, exe))
child = self.child
# Turn on logging for what the child sends back.
if self.TraceOn():
child.logfile_read = sys.stdout
# Set the breakpoint, followed by the target stop-hook commands.
child.expect_exact(prompt)
child.sendline('breakpoint set -f main.cpp -l %d' % self.first_stop)
child.expect_exact(prompt)
child.sendline('breakpoint set -f main.cpp -l %d' % self.thread_function)
child.expect_exact(prompt)
# Now run the program, expect to stop at the the first breakpoint which is within the stop-hook range.
child.sendline('run')
child.expect_exact(prompt)
child.sendline('target stop-hook add -o "frame variable -g g_val"')
child.expect_exact(prompt)
# Continue and expect to find the output emitted by the firing of our stop hook.
child.sendline('continue')
child.expect_exact('(uint32_t) g_val = ')
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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