Ci fixes (#39)

* add ptrace caps to ci-docker

* seccomp opt to allow gdbserver to enable aslr

* increase sleeptime in test_gdbprotocol

* execute gdbs target.run() as blocking=True

* Fix ci-ubuntu version of gdb to 8.1-0ubuntu3

The most modern version of gdb, 8.1-0ubuntu3.1, introduces a bug when it
comes to 32bit binaries on 64bit systems. This affects our CI, hence,
let's use the slightly older 8.1-0ubuntu3 instead.
Thanks for bringing this bug to our attention goes to @reyammer.

* disabled temporary logging on testcase

.travis.yml

@@ -8,7 +8,7 @@ services:
 
 before_install:
     - docker pull ubuntu:18.04
-    - docker run -v /home/travis/build/$TRAVIS_REPO_SLUG:/avatar2 --name ubuntu -dit ubuntu:18.04
+    - docker run -v /home/travis/build/$TRAVIS_REPO_SLUG:/avatar2 --name ubuntu --cap-add=SYS_PTRACE --security-opt seccomp=unconfined -dit ubuntu:18.04
     - docker exec ubuntu apt-get update
     - docker exec ubuntu apt-get install -y sudo
 
@@ -20,9 +20,9 @@ install:
     - docker exec ubuntu apt-get install -y python python-pip
     - docker exec ubuntu apt-get install -y python3 python3-pip
     - docker exec ubuntu apt-get install -y libc6-i386 
-    - docker exec ubuntu apt-get install -y gdb 
+    - docker exec ubuntu apt-get install -y gdb=8.1-0ubuntu3
     - docker exec ubuntu apt-get install -y pkg-config 
-    - docker exec ubuntu apt-get install -y gdb-multiarch
+    - docker exec ubuntu apt-get install -y gdb-multiarch=8.1-0ubuntu3
     - docker exec ubuntu apt-get install -y libcapstone3 
     - docker exec ubuntu apt-get install -y libcapstone-dev
     - docker exec ubuntu pip2 install --upgrade pip

avatar2/targets/gdb_target.py

@@ -74,7 +74,7 @@ def init(self):
     @watch('TargetCont')
     @action_valid_decorator_factory(TargetStates.INITIALIZED, 'execution')
     @synchronize_state(TargetStates.RUNNING)
-    def run(self):
+    def run(self, blocking=True):
         return self.protocols.execution.run()
 
     def cont(self, blocking=True):

tests/smoke/target_wait.py

@@ -4,6 +4,7 @@
 import avatar2
 import os
 import logging
+import sys
 
 from time import sleep
 from nose.tools import *

tests/test_gdbprotocol.py

@@ -7,6 +7,7 @@
 
 from nose.tools import *
 
+SLEEP_TIME = 1
 
 port = 4444
 p = None
@@ -60,7 +61,8 @@ def test_break_run_and_read_write_mem():
     ret = g.cont()
     assert_equal(ret, True)
     # todo: enable waiting
-    time.sleep(.2)
+
+    time.sleep(SLEEP_TIME)
 
     ret = g.read_memory(0x08048000, 4)
     assert_equal(ret, 0x464c457f)
@@ -81,23 +83,24 @@ def test_continue_stopping_stepping():
     ret = g.stop()
     assert_equal(ret, True)
 
-    time.sleep(.2)
+    time.sleep(SLEEP_TIME)
 
     ret = g.step()
     assert_equal(ret, True)
 
-    time.sleep(.2)
+    time.sleep(SLEEP_TIME)
 
 @with_setup(setup_helloworld, teardown_func)
-def test_wacthpoint():
+def test_watchpoint():
     ret = g.set_watchpoint(0x080484c0, read=True,
                            write=False)
     assert_equal(ret, True)
 
     ret = g.cont()
     assert_equal(ret, True)
 
-    time.sleep(.2)
+
+    time.sleep(SLEEP_TIME)
 
     ret = g.read_memory(0x08048000, 4)
     assert_equal(ret, 0x464c457f)