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"""
Test display and Python APIs on file and class static variables.
"""
import os, time
import unittest2
import lldb
from lldbtest import *
import lldbutil
class StaticVariableTestCase(TestBase):
mydir = TestBase.compute_mydir(__file__)
failing_compilers = ['clang', 'gcc']
@skipUnlessDarwin
@dsym_test
def test_with_dsym_and_run_command(self):
"""Test that file and class static variables display correctly."""
self.buildDsym()
self.static_variable_commands()
@dwarf_test
def test_with_dwarf_and_run_command(self):
"""Test that file and class static variables display correctly."""
self.buildDwarf()
self.static_variable_commands()
@skipUnlessDarwin
@expectedFailureClang(9980907)
@expectedFailureGcc(9980907)
@python_api_test
@dsym_test
def test_with_dsym_and_python_api(self):
"""Test Python APIs on file and class static variables."""
self.buildDsym()
self.static_variable_python()
@expectedFailureDarwin(9980907)
@expectedFailureClang('Clang emits incomplete debug info.')
@expectedFailureFreeBSD('llvm.org/pr20550 failing on FreeBSD-11')
@expectedFailureGcc('GCC emits incomplete debug info.')
@python_api_test
@dwarf_test
def test_with_dwarf_and_python_api(self):
"""Test Python APIs on file and class static variables."""
self.buildDwarf()
self.static_variable_python()
def setUp(self):
# Call super's setUp().
TestBase.setUp(self)
# Find the line number to break at.
self.line = line_number('main.cpp', '// Set break point at this line.')
def static_variable_commands(self):
"""Test that that file and class static variables display correctly."""
self.runCmd("file a.out", CURRENT_EXECUTABLE_SET)
lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True)
self.runCmd("run", RUN_FAILED)
# The stop reason of the thread should be breakpoint.
self.expect("thread list", STOPPED_DUE_TO_BREAKPOINT,
substrs = ['stopped',
'stop reason = breakpoint'])
# global variables are no longer displayed with the "frame variable" command.
self.expect('target variable A::g_points', VARIABLES_DISPLAYED_CORRECTLY,
patterns=['\(PointType \[[1-9]*\]\) A::g_points = {.*}'])
self.expect('target variable g_points', VARIABLES_DISPLAYED_CORRECTLY,
substrs = ['(PointType [2]) g_points'])
# On Mac OS X, gcc 4.2 emits the wrong debug info for A::g_points.
# A::g_points is an array of two elements.
if self.platformIsDarwin() or self.getPlatform() == "linux":
self.expect("target variable A::g_points[1].x", VARIABLES_DISPLAYED_CORRECTLY,
startstr = "(int) A::g_points[1].x = 11")
def static_variable_python(self):
"""Test Python APIs on file and class static variables."""
exe = os.path.join(os.getcwd(), "a.out")
target = self.dbg.CreateTarget(exe)
self.assertTrue(target, VALID_TARGET)
breakpoint = target.BreakpointCreateByLocation("main.cpp", self.line)
self.assertTrue(breakpoint, VALID_BREAKPOINT)
# Now launch the process, and do not stop at entry point.
process = target.LaunchSimple (None, None, self.get_process_working_directory())
self.assertTrue(process, PROCESS_IS_VALID)
# The stop reason of the thread should be breakpoint.
thread = process.GetThreadAtIndex(0)
if thread.GetStopReason() != lldb.eStopReasonBreakpoint:
from lldbutil import stop_reason_to_str
self.fail(STOPPED_DUE_TO_BREAKPOINT_WITH_STOP_REASON_AS %
stop_reason_to_str(thread.GetStopReason()))
# Get the SBValue of 'A::g_points' and 'g_points'.
frame = thread.GetFrameAtIndex(0)
# arguments => False
# locals => False
# statics => True
# in_scope_only => False
valList = frame.GetVariables(False, False, True, False)
for val in valList:
self.DebugSBValue(val)
name = val.GetName()
self.assertTrue(name in ['g_points', 'A::g_points'])
if name == 'g_points':
self.assertTrue(val.GetValueType() == lldb.eValueTypeVariableStatic)
self.assertTrue(val.GetNumChildren() == 2)
elif name == 'A::g_points':
self.assertTrue(val.GetValueType() == lldb.eValueTypeVariableGlobal)
self.assertTrue(val.GetNumChildren() == 2)
child1 = val.GetChildAtIndex(1)
self.DebugSBValue(child1)
child1_x = child1.GetChildAtIndex(0)
self.DebugSBValue(child1_x)
self.assertTrue(child1_x.GetTypeName() == 'int' and
child1_x.GetValue() == '11')
# SBFrame.FindValue() should also work.
val = frame.FindValue("A::g_points", lldb.eValueTypeVariableGlobal)
self.DebugSBValue(val)
self.assertTrue(val.GetName() == 'A::g_points')
# Also exercise the "parameter" and "local" scopes while we are at it.
val = frame.FindValue("argc", lldb.eValueTypeVariableArgument)
self.DebugSBValue(val)
self.assertTrue(val.GetName() == 'argc')
val = frame.FindValue("argv", lldb.eValueTypeVariableArgument)
self.DebugSBValue(val)
self.assertTrue(val.GetName() == 'argv')
val = frame.FindValue("hello_world", lldb.eValueTypeVariableLocal)
self.DebugSBValue(val)
self.assertTrue(val.GetName() == 'hello_world')
if __name__ == '__main__':
import atexit
lldb.SBDebugger.Initialize()
atexit.register(lambda: lldb.SBDebugger.Terminate())
unittest2.main()
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