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"""
Test number of threads.
"""
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class CreateDuringStepTestCase(TestBase):
@expectedFailureAll(
oslist=["linux"],
bugnumber="llvm.org/pr15824 thread states not properly maintained",
)
@expectedFailureAll(
oslist=lldbplatformutil.getDarwinOSTriples(),
bugnumber="llvm.org/pr15824 thread states not properly maintained, <rdar://problem/28557237>",
)
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="llvm.org/pr18190 thread states not properly maintained",
)
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24668: Breakpoints not resolved correctly",
)
@expectedFailureNetBSD
def test_step_inst(self):
"""Test thread creation during step-inst handling."""
self.build()
self.create_during_step_base(
"thread step-inst -m all-threads", "stop reason = instruction step"
)
@expectedFailureAll(
oslist=["linux"],
bugnumber="llvm.org/pr15824 thread states not properly maintained",
)
@expectedFailureAll(
oslist=lldbplatformutil.getDarwinOSTriples(),
bugnumber="llvm.org/pr15824 thread states not properly maintained, <rdar://problem/28557237>",
)
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="llvm.org/pr18190 thread states not properly maintained",
)
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24668: Breakpoints not resolved correctly",
)
@expectedFailureNetBSD
def test_step_over(self):
"""Test thread creation during step-over handling."""
self.build()
self.create_during_step_base(
"thread step-over -m all-threads", "stop reason = step over"
)
@expectedFailureAll(
oslist=["linux"],
bugnumber="llvm.org/pr15824 thread states not properly maintained",
)
@expectedFailureAll(
oslist=lldbplatformutil.getDarwinOSTriples(),
bugnumber="<rdar://problem/28574077>",
)
@expectedFailureAll(
oslist=["freebsd"],
bugnumber="llvm.org/pr18190 thread states not properly maintained",
)
@expectedFailureAll(
oslist=["windows"],
bugnumber="llvm.org/pr24668: Breakpoints not resolved correctly",
)
@expectedFailureNetBSD
def test_step_in(self):
"""Test thread creation during step-in handling."""
self.build()
self.create_during_step_base(
"thread step-in -m all-threads", "stop reason = step in"
)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line numbers to break and continue.
self.breakpoint = line_number("main.cpp", "// Set breakpoint here")
self.continuepoint = line_number("main.cpp", "// Continue from here")
def create_during_step_base(self, step_cmd, step_stop_reason):
"""Test thread creation while using step-in."""
exe = self.getBuildArtifact("a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Get the target process
target = self.dbg.GetSelectedTarget()
# This should create a breakpoint in the stepping thread.
self.bkpt = target.BreakpointCreateByLocation("main.cpp", self.breakpoint)
# Run the program.
self.runCmd("run", RUN_SUCCEEDED)
process = target.GetProcess()
# The stop reason of the thread should be breakpoint.
stepping_thread = lldbutil.get_one_thread_stopped_at_breakpoint(
process, self.bkpt
)
self.assertTrue(stepping_thread.IsValid(), "We stopped at the right breakpoint")
# Get the number of threads
num_threads = process.GetNumThreads()
# Make sure we see only two threads
self.assertEqual(
num_threads,
2,
"Number of expected threads and actual threads do not match.",
)
# Get the thread objects
thread1 = process.GetThreadAtIndex(0)
thread2 = process.GetThreadAtIndex(1)
current_line = self.breakpoint
# Keep stepping until we've reached our designated continue point
while current_line != self.continuepoint:
if stepping_thread != process.GetSelectedThread():
process.SetSelectedThread(stepping_thread)
self.runCmd(step_cmd)
frame = stepping_thread.GetFrameAtIndex(0)
current_line = frame.GetLineEntry().GetLine()
# Make sure we're still where we thought we were
self.assertTrue(
current_line >= self.breakpoint,
"Stepped to unexpected line, " + str(current_line),
)
self.assertTrue(
current_line <= self.continuepoint,
"Stepped to unexpected line, " + str(current_line),
)
# Update the number of threads
num_threads = process.GetNumThreads()
# Check to see that we increased the number of threads as expected
self.assertEqual(
num_threads,
3,
"Number of expected threads and actual threads do not match after thread exit.",
)
stop_reason = stepping_thread.GetStopReason()
self.assertStopReason(
stop_reason, lldb.eStopReasonPlanComplete, "Stopped for plan completion"
)
# Run to completion
self.runCmd("process continue")
# At this point, the inferior process should have exited.
self.assertEqual(process.GetState(), lldb.eStateExited, PROCESS_EXITED)
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