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1 import unittest
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2 import os
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3 import sys
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4 import subprocess
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5 import socket
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6 import time
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7
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8 from testzcc import ZccBaseTestCase
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9
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10 # Store testdir for safe switch back to directory:
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11 testdir = os.path.dirname(os.path.abspath(__file__))
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12
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369
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13 def tryrm(fn):
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14 try:
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15 os.remove(fn)
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16 except OSError:
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17 pass
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18
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355
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19 def runQemu(kernel, machine='lm3s811evb'):
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364
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20 """ Runs qemu on a given kernel file """
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21
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369
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22 tryrm('qemucontrol.sock')
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23 tryrm('qemuserial.sock')
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364
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24
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25 # Listen to the control socket:
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366
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26 qemu_control_serve = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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27 qemu_control_serve.bind('qemucontrol.sock')
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28 qemu_control_serve.listen(0)
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364
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29
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30 # Listen to the serial output:
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366
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31 qemu_serial_serve = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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32 qemu_serial_serve.bind('qemuserial.sock')
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33 qemu_serial_serve.listen(0)
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364
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34
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355
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35 args = ['qemu-system-arm', '-M', machine, '-m', '16M',
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36 '-nographic', '-kernel', kernel, '-monitor',
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364
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37 'unix:qemucontrol.sock',
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38 '-serial', 'unix:qemuserial.sock', '-S']
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370
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39 p = subprocess.Popen(args)
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40
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41 # Give process some time to boot:
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366
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42 qemu_serial, address_peer = qemu_serial_serve.accept()
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43 qemu_control, address_peer = qemu_control_serve.accept()
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44
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45 # Give the go command:
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364
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46 qemu_control.send('cont\n'.encode('ascii'))
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355
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47
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48 qemu_serial.settimeout(0.2)
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49
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50 # Receive all data:
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51 data = bytearray()
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364
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52 for i in range(400):
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355
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53 try:
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54 data += qemu_serial.recv(1)
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55 except socket.timeout as e:
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56 break
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57 data = data.decode('ascii')
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58 # print(data)
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59
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60 # Send quit command:
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61 qemu_control.send("quit\n".encode('ascii'))
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364
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62 try:
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63 p.wait(timeout=3)
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64 except subprocess.TimeoutExpired:
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65 p.kill()
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355
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66 qemu_control.close()
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67 qemu_serial.close()
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366
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68 qemu_control_serve.close()
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69 qemu_serial_serve.close()
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355
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70
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369
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71 tryrm('qemucontrol.sock')
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72 tryrm('qemuserial.sock')
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364
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73
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355
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74 # Check that output was correct:
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75 return data
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76
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338
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77
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78 class EmulationTestCase(ZccBaseTestCase):
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79 """ Tests the compiler driver """
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80 def setUp(self):
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81 if 'TESTEMU' not in os.environ:
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82 self.skipTest('Not running emulation tests')
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83
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84 def testM3Bare(self):
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85 """ Build bare m3 binary and emulate it """
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86 recipe = os.path.join(testdir, 'm3_bare', 'recipe.yaml')
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87 self.buildRecipe(recipe)
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88 data = runQemu('m3_bare/bare.bin')
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346
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89 self.assertEqual('Hello worle', data)
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90
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91 def testA9Bare(self):
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92 """ Build vexpress cortex-A9 binary and emulate it """
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93 recipe = os.path.join(testdir, '..', 'examples', 'qemu_a9_hello', 'recipe.yaml')
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94 self.buildRecipe(recipe)
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95 data = runQemu('../examples/qemu_a9_hello/hello.bin', machine='vexpress-a9')
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346
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96 self.assertEqual('Hello worle', data)
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338
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97
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352
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98 def testKernelVexpressA9(self):
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99 """ Build vexpress cortex-A9 binary and emulate it """
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100 recipe = os.path.join(testdir, '..', 'kernel', 'arm.yaml')
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101 self.buildRecipe(recipe)
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102 data = runQemu('../kernel/kernel_arm.bin', machine='vexpress-a9')
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361
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103 self.assertEqual('Welcome to lcfos!', data[:17])
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352
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104
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338
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105
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106 if __name__ == '__main__':
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107 unittest.main()
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