2238dcc393
This is an ongoing series of commits that are reformatting our Python code. Reformatting is done with `black` (23.1.0). If you end up having problems merging this commit because you have made changes to a python file, the best way to handle that is to run `git checkout --ours <yourfile>` and then reformat it with black. RFC: https://discourse.llvm.org/t/rfc-document-and-standardize-python-code-style Differential revision: https://reviews.llvm.org/D151460
74 lines
2.7 KiB
Python
74 lines
2.7 KiB
Python
"""
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Test specific to MIPS
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"""
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import re
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import lldb
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from lldbsuite.test.decorators import *
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from lldbsuite.test.lldbtest import *
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from lldbsuite.test import lldbutil
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class AvoidBreakpointInDelaySlotAPITestCase(TestBase):
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@skipIf(archs=no_match(re.compile("mips*")))
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def test(self):
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self.build()
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exe = self.getBuildArtifact("a.out")
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self.expect("file " + exe, patterns=["Current executable set to .*a.out.*"])
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# Create a target by the debugger.
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target = self.dbg.CreateTarget(exe)
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self.assertTrue(target, VALID_TARGET)
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breakpoint = target.BreakpointCreateByName("main", "a.out")
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self.assertTrue(
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breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT
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)
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# Now launch the process, and do not stop at entry point.
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process = target.LaunchSimple(None, None, self.get_process_working_directory())
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self.assertTrue(process, PROCESS_IS_VALID)
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list = target.FindFunctions("foo", lldb.eFunctionNameTypeAuto)
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self.assertEqual(list.GetSize(), 1)
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sc = list.GetContextAtIndex(0)
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self.assertEqual(sc.GetSymbol().GetName(), "foo")
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function = sc.GetFunction()
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self.assertTrue(function)
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self.function(function, target)
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def function(self, function, target):
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"""Iterate over instructions in function and place a breakpoint on delay slot instruction"""
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# Get the list of all instructions in the function
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insts = function.GetInstructions(target)
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print(insts)
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i = 0
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for inst in insts:
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if inst.HasDelaySlot():
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# Remember the address of branch instruction.
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branchinstaddress = inst.GetAddress().GetLoadAddress(target)
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# Get next instruction i.e delay slot instruction.
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delayinst = insts.GetInstructionAtIndex(i + 1)
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delayinstaddr = delayinst.GetAddress().GetLoadAddress(target)
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# Set breakpoint on delay slot instruction
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breakpoint = target.BreakpointCreateByAddress(delayinstaddr)
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# Verify the breakpoint.
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self.assertTrue(
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breakpoint and breakpoint.GetNumLocations() == 1, VALID_BREAKPOINT
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)
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# Get the location from breakpoint
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location = breakpoint.GetLocationAtIndex(0)
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# Get the address where breakpoint is actually set.
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bpaddr = location.GetLoadAddress()
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# Breakpoint address should be adjusted to the address of
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# branch instruction.
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self.assertEqual(branchinstaddress, bpaddr)
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i += 1
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else:
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i += 1
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