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      1 """Test aspects of lldb commands on universal binaries."""
      2 
      3 import os, time
      4 import unittest2
      5 import lldb
      6 from lldbtest import *
      7 import lldbutil
      8 
      9 class 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 
    105 if __name__ == '__main__':
    106     import atexit
    107     lldb.SBDebugger.Initialize()
    108     atexit.register(lambda: lldb.SBDebugger.Terminate())
    109     unittest2.main()
    110