teak-llvm/lldb/packages/Python/lldbsuite/test/expression_command/expr-in-syscall/TestExpressionInSyscall.py
Zachary Turner 4a289a93f7 Remove expectedFailureWindows decorator.
expectedFailureWindows is equivalent to using the general
expectedFailureAll decorator with oslist="windows".  Additionally,
by moving towards these common decorators we can solve the issue
of having to support decorators that can be called with or without
arguments.  Once all decorators are always called with arguments,
and this is enforced by design (because you can't specify the condition
you're decorating for without passing an argument) the implementation
of the decorators can become much simpler

Differential Revision: http://reviews.llvm.org/D16936

llvm-svn: 260134
2016-02-08 19:34:59 +00:00

84 lines
2.8 KiB
Python

"""Test that we are able to evaluate expressions when the inferior is blocked in a syscall"""
from __future__ import print_function
import os
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class ExprSyscallTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@expectedFailureAll(oslist=["windows"], bugnumber="llvm.org/pr21765, getpid() does not exist on Windows")
def test_setpgid(self):
self.build()
self.expr_syscall()
def expr_syscall(self):
exe = os.path.join(os.getcwd(), 'a.out')
# Create a target by the debugger.
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
listener = lldb.SBListener("my listener")
# launch the inferior and don't wait for it to stop
self.dbg.SetAsync(True)
error = lldb.SBError()
process = target.Launch (listener,
None, # argv
None, # envp
None, # stdin_path
None, # stdout_path
None, # stderr_path
None, # working directory
0, # launch flags
False, # Stop at entry
error) # error
self.assertTrue(process and process.IsValid(), PROCESS_IS_VALID)
event = lldb.SBEvent()
# Give the child enough time to reach the syscall,
# while clearing out all the pending events.
# The last WaitForEvent call will time out after 2 seconds.
while listener.WaitForEvent(2, event):
pass
# now the process should be running (blocked in the syscall)
self.assertEqual(process.GetState(), lldb.eStateRunning, "Process is running")
# send the process a signal
process.SendAsyncInterrupt()
while listener.WaitForEvent(2, event):
pass
# as a result the process should stop
# in all likelihood we have stopped in the middle of the sleep() syscall
self.assertEqual(process.GetState(), lldb.eStateStopped, PROCESS_STOPPED)
thread = process.GetSelectedThread()
# try evaluating a couple of expressions in this state
self.expect("expr release_flag = 1", substrs = [" = 1"])
self.expect("print (int)getpid()", substrs = [str(process.GetProcessID())])
# and run the process to completion
process.Continue()
# process all events
while listener.WaitForEvent(10, event):
new_state = lldb.SBProcess.GetStateFromEvent(event)
if new_state == lldb.eStateExited:
break
self.assertEqual(process.GetState(), lldb.eStateExited)
self.assertEqual(process.GetExitStatus(), 0)