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"""Test breakpoint on a class constructor; and variable list the this object."""
from __future__ import print_function
import os, time
import lldb
import lldbsuite.test.lldbutil as lldbutil
from lldbsuite.test.lldbtest import *
import lldbsuite.test.lldbutil as lldbutil
class ClassTypesTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break for main.cpp.
self.line = line_number('main.cpp', '// Set break point at this line.')
def test_with_run_command(self):
"""Test 'frame variable this' when stopped on a class constructor."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# Break on the ctor function of class C.
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=-1)
self.runCmd("run", RUN_SUCCEEDED)
# The test suite sometimes shows that the process has exited without stopping.
#
# CC=clang ./dotest.py -v -t class_types
# ...
# Process 76604 exited with status = 0 (0x00000000)
self.runCmd("process status")
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
# We should be stopped on the ctor function of class C.
self.expect("frame variable --show-types this", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['C *',
' this = '])
@add_test_categories(['pyapi'])
def test_with_python_api(self):
"""Use Python APIs to create a breakpoint by (filespec, line)."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
filespec = target.GetExecutable()
self.assertTrue(filespec, VALID_FILESPEC)
fsDir = os.path.normpath(filespec.GetDirectory())
fsFile = filespec.GetFilename()
self.assertTrue(fsDir == os.getcwd() and fsFile == "a.out",
"FileSpec matches the executable")
bpfilespec = lldb.SBFileSpec("main.cpp", False)
breakpoint = target.BreakpointCreateByLocation(bpfilespec, self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Verify the breakpoint just created.
self.expect(str(breakpoint), BREAKPOINT_CREATED, exe=False,
substrs = ['main.cpp',
str(self.line)])
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple (None, None, self.get_process_working_directory())
if not process:
self.fail("SBTarget.Launch() failed")
if process.GetState() != lldb.eStateStopped:
self.fail("Process should be in the 'stopped' state, "
"instead the actual state is: '%s'" %
lldbutil.state_type_to_str(process.GetState()))
# The stop reason of the thread should be breakpoint.
thread = process.GetThreadAtIndex(0)
if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
from lldbsuite.test.lldbutil import stop_reason_to_str
self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
stop_reason_to_str(thread.GetStopReason()))
# The filename of frame #0 should be 'main.cpp' and the line number
# should be 93.
self.expect("%s:%d" % (lldbutil.get_filenames(thread)[0],
lldbutil.get_line_numbers(thread)[0]),
"Break correctly at main.cpp:%d" % self.line, exe=False,
startstr = "main.cpp:")
### clang compiled code reported main.cpp:94?
### startstr = "main.cpp:93")
# We should be stopped on the breakpoint with a hit count of 1.
self.assertTrue(breakpoint.GetHitCount() == 1, BREAKPOINT_HIT_ONCE)
process.Continue()
def test_with_expr_parser(self):
"""Test 'frame variable this' and 'expr this' when stopped inside a constructor."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
# rdar://problem/8516141
# Is this a case of clang (116.1) generating bad debug info?
#
# Break on the ctor function of class C.
#self.expect("breakpoint set -M C", BREAKPOINT_CREATED,
# startstr = "Breakpoint created: 1: name = 'C'")
# Make the test case more robust by using line number to break, instead.
lldbutil.run_break_set_by_file_and_line (self, None, self.line, num_expected_locations=-1)
self.runCmd("run", RUN_SUCCEEDED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# The breakpoint should have a hit count of 1.
self.expect("breakpoint list -f", BREAKPOINT_HIT_ONCE,
substrs = [' resolved, hit count = 1'])
# Continue on inside the ctor() body...
self.runCmd("register read pc")
self.runCmd("thread step-over")
# Verify that 'frame variable this' gets the data type correct.
self.expect("frame variable this",VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['C *'])
# Verify that frame variable --show-types this->m_c_int behaves correctly.
self.runCmd("register read pc")
self.runCmd("expr m_c_int")
self.expect("frame variable --show-types this->m_c_int", VARIABLES_DISPLAYED_CORRECTLY,
startstr = '(int) this->m_c_int = 66')
# Verify that 'expression this' gets the data type correct.
self.expect("expression this", VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['C *'])
# rdar://problem/8430916
# expr this->m_c_int returns an incorrect value
#
# Verify that expr this->m_c_int behaves correctly.
self.expect("expression this->m_c_int", VARIABLES_DISPLAYED_CORRECTLY,
patterns = ['\(int\) \$[0-9]+ = 66'])
def test_with_constructor_name (self):
"""Test 'frame variable this' and 'expr this' when stopped inside a constructor."""
self.build()
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
filespec = target.GetExecutable()
self.assertTrue(filespec, VALID_FILESPEC)
fsDir = os.path.normpath(filespec.GetDirectory())
fsFile = filespec.GetFilename()
self.assertTrue(fsDir == os.getcwd() and fsFile == "a.out",
"FileSpec matches the executable")
bpfilespec = lldb.SBFileSpec("main.cpp", False)
breakpoint = target.BreakpointCreateByLocation(bpfilespec, self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Verify the breakpoint just created.
self.expect(str(breakpoint), BREAKPOINT_CREATED, exe=False,
substrs = ['main.cpp',
str(self.line)])
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple (None, None, self.get_process_working_directory())
if not process:
self.fail("SBTarget.Launch() failed")
if process.GetState() != lldb.eStateStopped:
self.fail("Process should be in the 'stopped' state, "
"instead the actual state is: '%s'" %
lldbutil.state_type_to_str(process.GetState()))
# The stop reason of the thread should be breakpoint.
thread = process.GetThreadAtIndex(0)
if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
from lldbsuite.test.lldbutil import stop_reason_to_str
self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
stop_reason_to_str(thread.GetStopReason()))
frame = thread.frames[0]
self.assertTrue (frame.IsValid(), "Got a valid frame.")
self.assertTrue ("C::C" in frame.name, "Constructor name includes class name.")
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