Files
clang-p2996/lldb/test/functionalities/stop-hook/TestStopHookMechanism.py
Johnny Chen d890bfc962 Add a new attribute self.lldbHere, representing the fullpath to the 'lldb' executable
built locally from the source tree.  This is distinguished from self.lldbExec, which
can be used by test/benchmarks to measure the performances against other debuggers.

You can use environment variable LLDB_EXEC to specify self.lldbExec to the dotest.py
test driver, otherwise it is going to be populated with self.lldbHere.

Modify the regular tests under test dir, i.e., not test/benchmarks, to use self.lldbHere.
Also modify the benchmarks tests to use self.lldbHere when it needs an 'lldb' executable
with debug info to do the performance measurements.

llvm-svn: 138608
2011-08-26 00:00:01 +00:00

91 lines
3.5 KiB
Python

"""
Test lldb target stop-hook mechanism to see whether it fires off correctly .
"""
import os
import unittest2
import lldb
import pexpect
from lldbtest import *
class StopHookMechanismTestCase(TestBase):
mydir = os.path.join("functionalities", "stop-hook")
@unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin")
def test_with_dsym(self):
"""Test the stop-hook mechanism."""
self.buildDsym()
self.stop_hook_firing()
def test_with_dwarf(self):
"""Test the stop-hook mechanism."""
self.buildDwarf()
self.stop_hook_firing()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers inside main.cpp.
self.begl = line_number('main.cpp', '// Set breakpoint here to test target stop-hook.')
self.endl = line_number('main.cpp', '// End of the line range for which stop-hook is to be run.')
self.line = line_number('main.cpp', '// Another breakpoint which is outside of the stop-hook range.')
def stop_hook_firing(self):
"""Test the stop-hook mechanism."""
exe = os.path.join(os.getcwd(), "a.out")
prompt = "(lldb) "
add_prompt = "Enter your stop hook command(s). Type 'DONE' to end.\r\n> "
add_prompt1 = "\r\n> "
# 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.begl)
child.expect_exact(prompt)
child.sendline('breakpoint set -f main.cpp -l %d' % self.line)
child.expect_exact(prompt)
child.sendline('target stop-hook add -f main.cpp -l %d -e %d' % (self.begl, self.endl))
child.expect_exact(add_prompt)
child.sendline('expr ptr')
child.expect_exact(add_prompt1)
child.sendline('DONE')
child.expect_exact(prompt)
child.sendline('target stop-hook list')
# Now run the program, expect to stop at the the first breakpoint which is within the stop-hook range.
child.expect_exact(prompt)
child.sendline('run')
child.expect_exact(prompt)
child.sendline('thread step-over')
#self.DebugPExpect(child)
child.expect_exact('** End Stop Hooks **')
#self.DebugPExpect(child)
# Verify that the 'Stop Hooks' mechanism is fired off.
self.expect(child.before, exe=False,
substrs = ['(void *) $'])
# Now continue the inferior, we'll stop at another breakpoint which is outside the stop-hook range.
child.sendline('process continue')
child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
#self.DebugPExpect(child)
child.sendline('thread step-over')
child.expect_exact('// Another breakpoint which is outside of the stop-hook range.')
#self.DebugPExpect(child)
# Verify that the 'Stop Hooks' mechanism is NOT BEING fired off.
self.expect(child.before, exe=False, matching=False,
substrs = ['(void *) $'])
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()