74 lines · python
1"""2Test specific to MIPS3"""4 5import re6import lldb7from lldbsuite.test.decorators import *8from lldbsuite.test.lldbtest import *9from lldbsuite.test import lldbutil10 11 12class AvoidBreakpointInDelaySlotAPITestCase(TestBase):13 @skipIf(archs=no_match(re.compile("mips*")))14 def test(self):15 self.build()16 exe = self.getBuildArtifact("a.out")17 self.expect("file " + exe, patterns=["Current executable set to .*a.out.*"])18 19 # Create a target by the debugger.20 target = self.dbg.CreateTarget(exe)21 self.assertTrue(target, VALID_TARGET)22 23 breakpoint = target.BreakpointCreateByName("main", "a.out")24 self.assertTrue(25 breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT26 )27 28 # Now launch the process, and do not stop at entry point.29 process = target.LaunchSimple(None, None, self.get_process_working_directory())30 self.assertTrue(process, PROCESS_IS_VALID)31 32 list = target.FindFunctions("foo", lldb.eFunctionNameTypeAuto)33 self.assertEqual(list.GetSize(), 1)34 sc = list.GetContextAtIndex(0)35 self.assertEqual(sc.GetSymbol().GetName(), "foo")36 function = sc.GetFunction()37 self.assertTrue(function)38 self.function(function, target)39 40 def function(self, function, target):41 """Iterate over instructions in function and place a breakpoint on delay slot instruction"""42 # Get the list of all instructions in the function43 insts = function.GetInstructions(target)44 print(insts)45 i = 046 for inst in insts:47 if inst.HasDelaySlot():48 # Remember the address of branch instruction.49 branchinstaddress = inst.GetAddress().GetLoadAddress(target)50 51 # Get next instruction i.e delay slot instruction.52 delayinst = insts.GetInstructionAtIndex(i + 1)53 delayinstaddr = delayinst.GetAddress().GetLoadAddress(target)54 55 # Set breakpoint on delay slot instruction56 breakpoint = target.BreakpointCreateByAddress(delayinstaddr)57 58 # Verify the breakpoint.59 self.assertTrue(60 breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT61 )62 # Get the location from breakpoint63 location = breakpoint.GetLocationAtIndex(0)64 65 # Get the address where breakpoint is actually set.66 bpaddr = location.GetLoadAddress()67 68 # Breakpoint address should be adjusted to the address of69 # branch instruction.70 self.assertEqual(branchinstaddress, bpaddr)71 i += 172 else:73 i += 174