Run linux examples in Travis (#668)

* Update makefile; add a list target for testing

* simplify nostdlib example

* Make sendmail example return success

* Add tests to run all examples

* Add some targets to exclude

* Run example scripts; temporarily add a workspace accsesor to mcore

* Optionally read end of main from argv

* Make concolic test more robust

* Clean up Makefile

* Be better with phony targets

* Add run_simple and state_control tests

* verbosity++

* Make sure we fail when we intend to

* Simplify travis_test.sh

* Remove multi_arch_sym

examples/script/concolic.py

@@ -13,6 +13,7 @@ Bugs
 
 '''
 
+import sys
 import Queue
 import struct
 import itertools
@@ -27,7 +28,7 @@ import copy
 from manticore.core.smtlib.expression import *
 
 prog = '../linux/simpleassert'
-endd = 0x400ae9
+main_end = 0x400ae9
 VERBOSITY = 0
 
 def _partition(pred, iterable):
@@ -163,7 +164,7 @@ def symbolic_run_get_cons(trace):
     m2.verbosity(VERBOSITY)
     m2.register_plugin(f)
 
-    @m2.hook(endd)
+    @m2.hook(main_end)
     def x(s):
         with m2.locked_context() as ctx:
             readdata = []
@@ -250,6 +251,12 @@ def concrete_input_to_constraints(ci, prev=None):
 
 
 def main():
+    global main_end
+
+    # Read the address of main's `ret` from cmdline if we're passed it. Used for testing.
+    if len(sys.argv) > 1:
+        main_end = int(sys.argv[1], 0)
+        log("Got end of main: {:x}".format(main_end))
 
     q = Queue.Queue()
 

examples/script/multi_arch_sym.py

@@ -1,36 +0,0 @@
-#!/usr/bin/env python
-
-import sys
-from manticore import Manticore
-
-'''
-Minimal example demonstrating setting execution hooks, the ability to target
-multiple target architectures, and symbolicating memory.
-'''
-
-if __name__ == '__main__':
-
-    if len(sys.argv) < 2:
-        print "Usage: {} [binary] [arguments]".format(sys.argv[0])
-        sys.exit(1)
-
-    # Create a new Manticore object
-    m = Manticore(sys.argv[1], sys.argv[2:])
-    m.verbosity = 2
-
-    if m.arch == 'arm':
-        target = (0x1082c, 'R4')
-    else:
-        target = (0x400a83, 'EBX')
-
-    @m.hook(target[0])
-    def entered_func(state):
-        '''
-        For ARM, Make R4 symbolic at 0x1082c, as r4 is used in a branch right
-        after.
-        '''
-        sym_var = state.new_symbolic_value(32, label='from_callback')
-        state.cpu.write_register(target[1], sym_var)
-
-    m.run()
-