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comparison test/testbintools.py @ 336:d1ecc493384e

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Added spiffy armtoken class for bit fiddeling. Added cool test that checks for build repeatability
author Windel Bouwman
date Wed, 19 Feb 2014 22:32:15 +0100
parents
children 86b02c98a717
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335:582a1aaa3983 336:d1ecc493384e
1 import unittest
2 import sys
3 from target.arminstructions import ArmToken
4 from ppci.linker import Linker
5 from ppci.objectfile import ObjectFile
6 from ppci import CompilerError
7
8
9 class TokenTestCase(unittest.TestCase):
10 def testSetBits(self):
11 at = ArmToken()
12 at[2:4] = 0b11
13 self.assertEqual(0xc, at.bit_value)
14
15 def testSetBits(self):
16 at = ArmToken()
17 at[4:8] = 0b1100
18 self.assertEqual(0xc0, at.bit_value)
19
20
21 class LinkerTestCase(unittest.TestCase):
22 def testUndefinedReference(self):
23 l = Linker()
24 o1 = ObjectFile()
25 o1.get_section('.text')
26 o1.add_relocation('undefined_sym', 0, 'rel8', '.text')
27 o2 = ObjectFile()
28 with self.assertRaises(CompilerError):
29 o3 = l.link([o1, o2])
30
31 def testDuplicateSymbol(self):
32 l = Linker()
33 o1 = ObjectFile()
34 o1.get_section('.text')
35 o1.add_symbol('a', 0, '.text')
36 o2 = ObjectFile()
37 o2.get_section('.text')
38 o2.add_symbol('a', 0, '.text')
39 with self.assertRaises(CompilerError):
40 o3 = l.link([o1, o2])
41
42 def testRel8Relocation(self):
43 l = Linker()
44 o1 = ObjectFile()
45 o1.get_section('.text').add_data(bytes([0]*100))
46 o1.add_relocation('a', 0, 'rel8', '.text')
47 o2 = ObjectFile()
48 o2.get_section('.text').add_data(bytes([0]*100))
49 o2.add_symbol('a', 24, '.text')
50 o3 = l.link([o1, o2])
51
52 def testSymbolValues(self):
53 l = Linker()
54 o1 = ObjectFile()
55 o1.get_section('.text').add_data(bytes([0]*108))
56 o1.add_symbol('b', 24, '.text')
57 o2 = ObjectFile()
58 o2.get_section('.text').add_data(bytes([0]*100))
59 o2.add_symbol('a', 2, '.text')
60 o3 = l.link([o1, o2])
61 self.assertEqual(110, o3.find_symbol('a').value)
62 self.assertEqual(24, o3.find_symbol('b').value)
63 self.assertEqual(208, o3.get_section('.text').Size)
64
65 def testMemoryLayout(self):
66 l = Linker()
67 memory_layout = {'.text': 0x08000000, '.data':0x20000000}
68 o1 = ObjectFile()
69 o1.get_section('.text').add_data(bytes([0]*108))
70 o1.add_symbol('b', 24, '.text')
71 o2 = ObjectFile()
72 o2.get_section('.text').add_data(bytes([0]*100))
73 o2.get_section('.data').add_data(bytes([0]*100))
74 o2.add_symbol('a', 2, '.data')
75 o2.add_symbol('c', 2, '.text')
76 o3 = l.link([o1, o2], layout=memory_layout)
77 self.assertEqual(0x20000000+2, o3.find_symbol('a').value)
78 self.assertEqual(0x08000000+24, o3.find_symbol('b').value)
79 self.assertEqual(0x08000000+110, o3.find_symbol('c').value)
80 self.assertEqual(208, o3.get_section('.text').Size)
81 self.assertEqual(100, o3.get_section('.data').Size)
82
83
84 if __name__ == '__main__':
85 unittest.main()
86 sys.exit()