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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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375
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7 import shutil
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338
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8
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9 from testzcc import ZccBaseTestCase
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10
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11 # Store testdir for safe switch back to directory:
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12 testdir = os.path.dirname(os.path.abspath(__file__))
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13
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14 def tryrm(fn):
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15 try:
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16 os.remove(fn)
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17 except OSError:
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18 pass
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19
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20 qemu_app = 'qemu-system-arm'
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21
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22 def has_qemu():
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23 """ Determines if qemu is possible """
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24 return bool(shutil.which(qemu_app))
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25
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26
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27 def runQemu(kernel, machine='lm3s811evb'):
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28 """ Runs qemu on a given kernel file """
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29
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30 if not has_qemu():
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31 return ''
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32 tryrm('qemucontrol.sock')
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33 tryrm('qemuserial.sock')
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34
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35 # Listen to the control socket:
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36 qemu_control_serve = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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37 qemu_control_serve.bind('qemucontrol.sock')
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38 qemu_control_serve.listen(0)
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39
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40 # Listen to the serial output:
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41 qemu_serial_serve = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
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42 qemu_serial_serve.bind('qemuserial.sock')
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43 qemu_serial_serve.listen(0)
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44
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45 args = [qemu_app, '-M', machine, '-m', '16M',
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46 '-nographic',
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47 '-kernel', kernel,
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48 '-monitor', 'unix:qemucontrol.sock',
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49 '-serial', 'unix:qemuserial.sock',
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50 '-S']
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370
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51 p = subprocess.Popen(args)
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52
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372
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53 #qemu_serial Give process some time to boot:
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54 qemu_serial_serve.settimeout(3)
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55 qemu_control_serve.settimeout(3)
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366
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56 qemu_serial, address_peer = qemu_serial_serve.accept()
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57 qemu_control, address_peer = qemu_control_serve.accept()
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58
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59 # Give the go command:
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60 qemu_control.send('cont\n'.encode('ascii'))
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61
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62 qemu_serial.settimeout(0.2)
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63
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64 # Receive all data:
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65 data = bytearray()
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66 for i in range(400):
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67 try:
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68 data += qemu_serial.recv(1)
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69 except socket.timeout as e:
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70 break
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71 data = data.decode('ascii')
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72 # print(data)
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73
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74 # Send quit command:
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75 qemu_control.send("quit\n".encode('ascii'))
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371
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76 if hasattr(subprocess, 'TimeoutExpired'):
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77 try:
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78 p.wait(timeout=3)
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79 except subprocess.TimeoutExpired:
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80 p.kill()
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81 else:
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82 time.sleep(2)
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83 p.kill()
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84 qemu_control.close()
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85 qemu_serial.close()
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86 qemu_control_serve.close()
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87 qemu_serial_serve.close()
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88
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89 tryrm('qemucontrol.sock')
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90 tryrm('qemuserial.sock')
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91
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92 # Check that output was correct:
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93 return data
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94
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338
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95
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96 class EmulationTestCase(ZccBaseTestCase):
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97 """ Tests the compiler driver """
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98 def setUp(self):
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99 if not has_qemu():
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100 self.skipTest('Not running Qemu test')
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338
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101
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102 def testM3Bare(self):
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103 """ Build bare m3 binary and emulate it """
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104 recipe = os.path.join(testdir, 'm3_bare', 'recipe.yaml')
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105 self.buildRecipe(recipe)
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106 data = runQemu('m3_bare/bare.bin')
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107 self.assertEqual('Hello worle', data)
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108
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109 def testA9Bare(self):
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110 """ Build vexpress cortex-A9 binary and emulate it """
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111 recipe = os.path.join(testdir, '..', 'examples', 'qemu_a9_hello', 'recipe.yaml')
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112 self.buildRecipe(recipe)
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113 data = runQemu('../examples/qemu_a9_hello/hello.bin', machine='vexpress-a9')
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114 self.assertEqual('Hello worle', data)
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115
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116 def testKernelVexpressA9(self):
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117 """ Build vexpress cortex-A9 binary and emulate it """
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118 recipe = os.path.join(testdir, '..', 'kernel', 'arm.yaml')
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119 self.buildRecipe(recipe)
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120 data = runQemu('../kernel/kernel_arm.bin', machine='vexpress-a9')
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121 self.assertEqual('Welcome to lcfos!', data[:17])
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122
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123
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124 if __name__ == '__main__':
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125 unittest.main()
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