TestUniversal.py revision 431d839a33e9a274e705f7a268a1c9de2ffc2da2 
1"""Test aspects of lldb commands on universal binaries."""
2
3import os, time
4import unittest2
5import lldb
6from lldbtest import *
7import lldbutil
8
9class UniversalTestCase(TestBase):
10
11    mydir = os.path.join("macosx", "universal")
12
13    def setUp(self):
14        # Call super's setUp().
15        TestBase.setUp(self)
16        # Find the line number to break inside main().
17        self.line = line_number('main.c', '// Set break point at this line.')
18
19    @python_api_test
20    @unittest2.skipUnless(sys.platform.startswith("darwin") and os.uname()[4] in ['i386', 'x86_64'],
21                          "requires Darwin & i386")
22    def test_sbdebugger_create_target_with_file_and_target_triple(self):
23        """Test the SBDebugger.CreateTargetWithFileAndTargetTriple() API."""
24        # Invoke the default build rule.
25        self.buildDefault()
26
27        # Note that "testit" is a universal binary.
28        exe = os.path.join(os.getcwd(), "testit")
29
30        # Create a target by the debugger.
31        target = self.dbg.CreateTargetWithFileAndTargetTriple(exe, "i386-apple-macosx")
32        self.assertTrue(target, VALID_TARGET)
33
34        # Now launch the process, and do not stop at entry point.
35        process = target.LaunchSimple(None, None, os.getcwd())
36        self.assertTrue(process, PROCESS_IS_VALID)
37
38    # rdar://problem/8972204 AddressByteSize of 32-bit process should be 4, got 8 instead.
39    @unittest2.skipUnless(sys.platform.startswith("darwin") and os.uname()[4] in ['i386', 'x86_64'],
40                          "requires Darwin & i386")
41    def test_process_launch_for_universal(self):
42        """Test process launch of a universal binary."""
43        from lldbutil import print_registers
44
45        # Invoke the default build rule.
46        self.buildDefault()
47
48        # Note that "testit" is a universal binary.
49        exe = os.path.join(os.getcwd(), "testit")
50
51        # By default, x86_64 is assumed if no architecture is specified.
52        self.expect("file " + exe, CURRENT_EXECUTABLE_SET,
53            startstr = "Current executable set to ",
54            substrs = ["testit' (x86_64)."])
55
56        # Break inside the main.
57        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
58
59        # We should be able to launch the x86_64 executable.
60        self.runCmd("run", RUN_SUCCEEDED)
61
62        # Check whether we have a 64-bit process launched.
63        target = self.dbg.GetSelectedTarget()
64        process = target.GetProcess()
65        self.assertTrue(target and process and
66                        self.invoke(process, 'GetAddressByteSize') == 8,
67                        "64-bit process launched")
68
69        frame = process.GetThreadAtIndex(0).GetFrameAtIndex(0)
70        registers = print_registers(frame, string_buffer=True)
71        self.expect(registers, exe=False,
72            substrs = ['Name: rax'])
73
74        self.runCmd("continue")
75
76        # Now specify i386 as the architecture for "testit".
77        self.expect("file " + exe + " -a i386", CURRENT_EXECUTABLE_SET,
78            startstr = "Current executable set to ",
79            substrs = ["testit' (i386)."])
80
81        # Break inside the main.
82        lldbutil.run_break_set_by_file_and_line (self, "main.c", self.line, num_expected_locations=1, loc_exact=True)
83
84        # We should be able to launch the i386 executable as well.
85        self.runCmd("run", RUN_SUCCEEDED)
86
87        # Check whether we have a 32-bit process launched.
88        target = self.dbg.GetSelectedTarget()
89        process = target.GetProcess()
90        self.assertTrue(target and process,
91                        "32-bit process launched")
92
93        pointerSize = self.invoke(process, 'GetAddressByteSize')
94        self.assertTrue(pointerSize == 4,
95                        "AddressByteSize of 32-bit process should be 4, got %d instead." % pointerSize)
96
97        frame = process.GetThreadAtIndex(0).GetFrameAtIndex(0)
98        registers = print_registers(frame, string_buffer=True)
99        self.expect(registers, exe=False,
100            substrs = ['Name: eax'])
101
102        self.runCmd("continue")
103
104
105if __name__ == '__main__':
106    import atexit
107    lldb.SBDebugger.Initialize()
108    atexit.register(lambda: lldb.SBDebugger.Terminate())
109    unittest2.main()
110