6257a98b25
VS Code requests the `instruction` stepping granularity if the assembly view is currently focused. By implementing `StepGranularity`, we can hence properly single-step through assembly code.
86 lines
4.0 KiB
Python
86 lines
4.0 KiB
Python
"""
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Test lldb-dap setBreakpoints request
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"""
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import dap_server
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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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import lldbdap_testcase
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class TestDAP_step(lldbdap_testcase.DAPTestCaseBase):
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@skipIfWindows
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def test_step(self):
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"""
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Tests the stepping in/out/over in threads.
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"""
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program = self.getBuildArtifact("a.out")
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self.build_and_launch(program)
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source = "main.cpp"
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# source_path = os.path.join(os.getcwd(), source)
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breakpoint1_line = line_number(source, "// breakpoint 1")
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lines = [breakpoint1_line]
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# Set breakpoint in the thread function so we can step the threads
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breakpoint_ids = self.set_source_breakpoints(source, lines)
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self.assertEqual(
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len(breakpoint_ids), len(lines), "expect correct number of breakpoints"
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)
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self.continue_to_breakpoints(breakpoint_ids)
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threads = self.dap_server.get_threads()
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for thread in threads:
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if "reason" in thread:
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reason = thread["reason"]
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if reason == "breakpoint":
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# We have a thread that is stopped at our breakpoint.
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# Get the value of "x" and get the source file and line.
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# These will help us determine if we are stepping
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# correctly. If we step a thread correctly we will verify
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# the correct falue for x as it progresses through the
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# program.
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tid = thread["id"]
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x1 = self.get_local_as_int("x", threadId=tid)
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(src1, line1) = self.get_source_and_line(threadId=tid)
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# Now step into the "recurse()" function call again and
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# verify, using the new value of "x" and the source file
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# and line if we stepped correctly
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self.stepIn(threadId=tid, waitForStop=True)
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x2 = self.get_local_as_int("x", threadId=tid)
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(src2, line2) = self.get_source_and_line(threadId=tid)
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self.assertEqual(x1, x2 + 1, "verify step in variable")
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self.assertLess(line2, line1, "verify step in line")
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self.assertEqual(src1, src2, "verify step in source")
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# Now step out and verify
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self.stepOut(threadId=tid, waitForStop=True)
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x3 = self.get_local_as_int("x", threadId=tid)
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(src3, line3) = self.get_source_and_line(threadId=tid)
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self.assertEqual(x1, x3, "verify step out variable")
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self.assertGreaterEqual(line3, line1, "verify step out line")
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self.assertEqual(src1, src3, "verify step in source")
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# Step over and verify
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self.stepOver(threadId=tid, waitForStop=True)
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x4 = self.get_local_as_int("x", threadId=tid)
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(src4, line4) = self.get_source_and_line(threadId=tid)
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self.assertEqual(x4, x3, "verify step over variable")
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self.assertGreater(line4, line3, "verify step over line")
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self.assertEqual(src1, src4, "verify step over source")
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# Step a single assembly instruction.
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# Unfortunately, there is no portable way to verify the correct
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# stepping behavior here, because the generated assembly code
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# depends highly on the compiler, its version, the operating
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# system, and many more factors.
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self.stepOver(
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threadId=tid, waitForStop=True, granularity="instruction"
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)
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self.stepIn(
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threadId=tid, waitForStop=True, granularity="instruction"
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)
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# only step one thread that is at the breakpoint and stop
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break
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