TestDisasmAPI.py revision 257c608e31752b65f54ced4d5646954c29382149
1""" 2Test retrieval of SBAddress from function/symbol, disassembly, and SBAddress APIs. 3""" 4 5import os, time 6import re 7import unittest2 8import lldb, lldbutil 9from lldbtest import * 10 11class DisasmAPITestCase(TestBase): 12 13 mydir = os.path.join("python_api", "function_symbol") 14 15 @unittest2.skipUnless(sys.platform.startswith("darwin"), "requires Darwin") 16 @python_api_test 17 def test_with_dsym(self): 18 """Exercise getting SBAddress objects, disassembly, and SBAddress APIs.""" 19 self.buildDsym() 20 self.disasm_and_address_api() 21 22 @python_api_test 23 def test_with_dwarf(self): 24 """Exercise getting SBAddress objects, disassembly, and SBAddress APIs.""" 25 self.buildDwarf() 26 self.disasm_and_address_api() 27 28 def setUp(self): 29 # Call super's setUp(). 30 TestBase.setUp(self) 31 # Find the line number to of function 'c'. 32 self.line1 = line_number('main.c', '// Find the line number for breakpoint 1 here.') 33 self.line2 = line_number('main.c', '// Find the line number for breakpoint 2 here.') 34 35 def disasm_and_address_api(self): 36 """Exercise getting SBAddress objects, disassembly, and SBAddress APIs.""" 37 exe = os.path.join(os.getcwd(), "a.out") 38 39 # Create a target by the debugger. 40 target = self.dbg.CreateTarget(exe) 41 self.assertTrue(target.IsValid(), VALID_TARGET) 42 43 # Now create the two breakpoints inside function 'a'. 44 breakpoint1 = target.BreakpointCreateByLocation('main.c', self.line1) 45 breakpoint2 = target.BreakpointCreateByLocation('main.c', self.line2) 46 #print "breakpoint1:", breakpoint1 47 #print "breakpoint2:", breakpoint2 48 self.assertTrue(breakpoint1.IsValid() and 49 breakpoint1.GetNumLocations() == 1, 50 VALID_BREAKPOINT) 51 self.assertTrue(breakpoint2.IsValid() and 52 breakpoint2.GetNumLocations() == 1, 53 VALID_BREAKPOINT) 54 55 # Now launch the process, and do not stop at entry point. 56 self.process = target.LaunchSimple(None, None, os.getcwd()) 57 58 self.process = target.GetProcess() 59 self.assertTrue(self.process.IsValid(), PROCESS_IS_VALID) 60 61 # Frame #0 should be on self.line1. 62 self.assertTrue(self.process.GetState() == lldb.eStateStopped) 63 thread = lldbutil.get_stopped_thread(self.process, lldb.eStopReasonBreakpoint) 64 self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition") 65 frame0 = thread.GetFrameAtIndex(0) 66 lineEntry = frame0.GetLineEntry() 67 self.assertTrue(lineEntry.GetLine() == self.line1) 68 69 address1 = lineEntry.GetStartAddress() 70 #print "address1:", address1 71 72 # Now call SBTarget.ResolveSymbolContextForAddress() with address1. 73 context1 = target.ResolveSymbolContextForAddress(address1, lldb.eSymbolContextEverything) 74 75 self.assertTrue(context1.IsValid()) 76 if self.TraceOn(): 77 print "context1:", context1 78 79 # Continue the inferior, the breakpoint 2 should be hit. 80 self.process.Continue() 81 self.assertTrue(self.process.GetState() == lldb.eStateStopped) 82 thread = lldbutil.get_stopped_thread(self.process, lldb.eStopReasonBreakpoint) 83 self.assertTrue(thread != None, "There should be a thread stopped due to breakpoint condition") 84 frame0 = thread.GetFrameAtIndex(0) 85 lineEntry = frame0.GetLineEntry() 86 self.assertTrue(lineEntry.GetLine() == self.line2) 87 88 # Verify that the symbol and the function has the same address range per function 'a'. 89 symbol = context1.GetSymbol() 90 function = frame0.GetFunction() 91 self.assertTrue(symbol.IsValid() and function.IsValid()) 92 93 disasm_output = lldbutil.disassemble(target, symbol) 94 if self.TraceOn(): 95 print "symbol:", symbol 96 print "disassembly=>\n", disasm_output 97 98 disasm_output = lldbutil.disassemble(target, function) 99 if self.TraceOn(): 100 print "function:", function 101 print "disassembly=>\n", disasm_output 102 103 sa1 = symbol.GetStartAddress() 104 #print "sa1:", sa1 105 #ea1 = symbol.GetEndAddress() 106 #print "ea1:", ea1 107 sa2 = function.GetStartAddress() 108 #print "sa2:", sa2 109 #ea2 = function.GetEndAddress() 110 #print "ea2:", ea2 111 112 stream1 = lldb.SBStream() 113 sa1.GetDescription(stream1) 114 stream2 = lldb.SBStream() 115 sa2.GetDescription(stream2) 116 117 self.expect(stream1.GetData(), "The two starting addresses should be the same", exe=False, 118 startstr = stream2.GetData()) 119 120 121if __name__ == '__main__': 122 import atexit 123 lldb.SBDebugger.Initialize() 124 atexit.register(lambda: lldb.SBDebugger.Terminate()) 125 unittest2.main() 126