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1 import unittest
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2 import os
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3 import io
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4 from testemulation import runQemu, has_qemu
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5 from testzcc import relpath
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6 from ppci.buildfunctions import assemble, c3compile, link
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7
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8 startercode = """
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9 mov sp, 0x30000 ; setup stack pointer
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10 BL sample_start ; Branch to sample start
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11 local_loop:
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12 B local_loop
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13 """
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14
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15 modarchcode = """
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16 module arch;
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17
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18 function void putc(int c)
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19 {
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20 var int *UART0DR;
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21 UART0DR = cast<int*>(0x10009000); // UART0 DR register
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22 *UART0DR = c;
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23 }
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24
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25 """
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26
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27 arch_mmap = """
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28 MEMORY image LOCATION=0x10000 SIZE=0x10000 {
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29 SECTION(reset)
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30 SECTION(code)
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31 }
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32
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33 MEMORY ram LOCATION=0x20000 SIZE=0x10000 {
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34 SECTION(data)
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35 }
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36 """
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37
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38 class Samples:
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39 def testPrint(self):
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40 snippet = """
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41 module sample;
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42 import io;
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43 function void start()
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44 {
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45 io.print("Hello world");
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46 }
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47 """
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48 self.do(snippet, "Hello world")
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49
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50 def testForLoopPrint(self):
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51 snippet = """
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52 module sample;
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53 import io;
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54 function void start()
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55 {
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56 var int i;
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57 for (i=0; i<10; i = i + 1)
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58 {
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59 io.print2("A = ", i);
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60 }
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61 }
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62 """
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63 res = "".join("A = 0x{0:08X}\n".format(a) for a in range(10))
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64 self.do(snippet, res)
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65
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66 def testIfStatement(self):
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67 snippet = """
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68 module sample;
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69 import io;
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70 function void start()
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71 {
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72 var int i;
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73 i = 13;
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74 if (i*7 < 100)
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75 {
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76 io.print("Wow");
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77 }
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78 else
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79 {
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80 io.print("Outch");
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81 }
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82 }
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83 """
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84 res = "Wow"
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85 self.do(snippet, res)
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86
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87 def testParameterPassing4(self):
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88 snippet = """
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89 module sample;
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90 import io;
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91 function void dump(int a, int b, int c, int d)
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92 {
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93 io.print2("a=", a);
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94 io.print2("b=", b);
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95 io.print2("c=", c);
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96 io.print2("d=", d);
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97 }
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98 function void start()
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99 {
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100 dump(4,55,66,0x1337);
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101 }
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102 """
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103 res = "a=0x{0:08X}\n".format(4)
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104 res += "b=0x{0:08X}\n".format(55)
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105 res += "c=0x{0:08X}\n".format(66)
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106 res += "d=0x{0:08X}\n".format(0x1337)
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107 self.do(snippet, res)
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108
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109 def testGlobalVariable(self):
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110 snippet = """
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111 module sample;
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112 import io;
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113 var int G;
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114 function void do1()
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115 {
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116 G = G + 1;
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117 io.print2("G=", G);
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118 }
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119 function void do5()
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120 {
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121 G = G + 5;
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122 io.print2("G=", G);
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123 }
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124 function void start()
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125 {
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126 G = 0;
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127 do1();
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128 do1();
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129 do5();
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130 do1();
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131 do5();
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132 }
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133 """
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134 res = "".join("G=0x{0:08X}\n".format(a) for a in [1,2,7,8,13])
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135 self.do(snippet, res)
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136
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137
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138 class TestSamplesOnVexpress(unittest.TestCase, Samples):
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139 def setUp(self):
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140 if not has_qemu():
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141 self.skipTest('Not running qemu tests')
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142
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143 def do(self, src, expected_output):
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144 # Construct binary file from snippet:
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145 o1 = assemble(io.StringIO(startercode), 'arm')
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146 o2 = c3compile([
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147 relpath('..', 'kernel', 'src', 'io.c3'),
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148 io.StringIO(modarchcode),
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149 io.StringIO(src)], [], 'arm')
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150 o3 = link([o1, o2], io.StringIO(arch_mmap))
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151
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152 sample_filename = 'testsample.bin'
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153 with open(sample_filename, 'wb') as f:
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154 f.write(o3.get_section('code').data)
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155
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156 # Check bin file exists:
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157 self.assertTrue(os.path.isfile(sample_filename))
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158
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159 # Run bin file in emulator:
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160 res = runQemu(sample_filename, machine='vexpress-a9')
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161 os.remove(sample_filename)
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162 self.assertEqual(expected_output, res)
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163
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164
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165 # TODO: test samples on thumb target..
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166
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167
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168 if __name__ == '__main__':
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169 unittest.main()
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170
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