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| """
Test number of threads.
"""
from __future__ import print_function
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class CreateDuringStepTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
@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(dictionary=self.getBuildFlags())
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(dictionary=self.getBuildFlags())
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(dictionary=self.getBuildFlags())
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.assertTrue(
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.assertTrue(
num_threads == 3,
'Number of expected threads and actual threads do not match after thread exit.')
stop_reason = stepping_thread.GetStopReason()
self.assertEqual(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.assertTrue(
process.GetState() == lldb.eStateExited,
PROCESS_EXITED)
|