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"""
Test require hardware breakpoints.
Some of these tests require a target that does not have hardware breakpoints.
So that we can check we fail when required to use them.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
from functionalities.breakpoint.hardware_breakpoints.base import *
class BreakpointLocationsTestCase(HardwareBreakpointTestBase):
def test_breakpoint(self):
"""Test regular breakpoints when hardware breakpoints are required."""
self.build()
exe = self.getBuildArtifact("a.out")
target = self.dbg.CreateTarget(exe)
self.runCmd("settings set target.require-hardware-breakpoint true")
breakpoint = target.BreakpointCreateByLocation("main.c", 1)
self.assertTrue(breakpoint.IsHardware())
@skipTestIfFn(HardwareBreakpointTestBase.supports_hw_breakpoints)
def test_step_range(self):
"""Test stepping when hardware breakpoints are required."""
self.build()
_, _, thread, _ = lldbutil.run_to_line_breakpoint(
self, lldb.SBFileSpec("main.c"), 1
)
self.runCmd("settings set target.require-hardware-breakpoint true")
# Ensure we fail in the interpreter.
self.expect("thread step-in")
self.expect("thread step-in", error=True)
# Ensure we fail when stepping through the API.
error = lldb.SBError()
thread.StepInto("", 4, error)
self.assertTrue(error.Fail())
self.assertIn(
"Could not create hardware breakpoint for thread plan", error.GetCString()
)
@skipTestIfFn(HardwareBreakpointTestBase.supports_hw_breakpoints)
def test_step_out(self):
"""Test stepping out when hardware breakpoints are required."""
self.build()
_, _, thread, _ = lldbutil.run_to_line_breakpoint(
self, lldb.SBFileSpec("main.c"), 1
)
self.runCmd("settings set target.require-hardware-breakpoint true")
# Ensure this fails in the command interpreter.
self.expect("thread step-out", error=True)
# Ensure we fail when stepping through the API.
error = lldb.SBError()
thread.StepOut(error)
self.assertTrue(error.Fail())
self.assertIn(
"Could not create hardware breakpoint for thread plan", error.GetCString()
)
@skipTestIfFn(HardwareBreakpointTestBase.supports_hw_breakpoints)
def test_step_over(self):
"""Test stepping over when hardware breakpoints are required."""
self.build()
_, _, thread, _ = lldbutil.run_to_line_breakpoint(
self, lldb.SBFileSpec("main.c"), 7
)
self.runCmd("settings set target.require-hardware-breakpoint true")
# Step over doesn't fail immediately but fails later on.
self.expect(
"thread step-over",
error=True,
substrs=["error: Could not create hardware breakpoint for thread plan."],
)
# Was reported to sometimes pass on certain hardware.
@skipIf(oslist=["linux"], archs=["arm"])
@skipTestIfFn(HardwareBreakpointTestBase.supports_hw_breakpoints)
def test_step_until(self):
"""Test stepping until when hardware breakpoints are required."""
self.build()
_, _, thread, _ = lldbutil.run_to_line_breakpoint(
self, lldb.SBFileSpec("main.c"), 7
)
self.runCmd("settings set target.require-hardware-breakpoint true")
self.expect("thread until 5", error=True)
# Ensure we fail when stepping through the API.
error = thread.StepOverUntil(lldb.SBFrame(), lldb.SBFileSpec(), 5)
self.assertTrue(error.Fail())
self.assertIn(
"Could not create hardware breakpoint for thread plan", error.GetCString()
)
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