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"""
Test mpx-table command.
"""
from __future__ import print_function
import os
import time
import re
import lldb
from lldbsuite.test.decorators import *
from lldbsuite.test.lldbtest import *
from lldbsuite.test import lldbutil
class TestMPXTable(TestBase):
@skipIf(compiler="clang")
@skipIf(oslist=no_match(['linux']))
@skipIf(archs=no_match(['i386', 'x86_64']))
@skipIf(compiler="gcc", compiler_version=["<", "5"]) #GCC version >= 5 supports
#Intel(R) Memory Protection Extensions (Intel(R) MPX).
def test_show_command(self):
"""Test 'mpx-table show' command"""
self.build()
plugin_file = os.path.join(configuration.lldb_libs_dir, "liblldbIntelFeatures.so")
if not os.path.isfile(plugin_file):
self.skipTest("features plugin missing.")
plugin_command = " "
seq = ("plugin", "load", plugin_file)
plugin_command = plugin_command.join(seq)
self.runCmd(plugin_command)
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.b1 = line_number('main.cpp', '// Break 1.')
self.b2 = line_number('main.cpp', '// Break 2.')
self.b3 = line_number('main.cpp', '// Break 3.')
self.b4 = line_number('main.cpp', '// Break 4.')
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.b1, num_expected_locations=1)
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.b2, num_expected_locations=1)
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.b3, num_expected_locations=1)
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.b4, num_expected_locations=1)
self.runCmd("run", RUN_SUCCEEDED)
target = self.dbg.GetSelectedTarget()
process = target.GetProcess()
if (process.GetState() == lldb.eStateExited):
self.skipTest("Intel(R) MPX is not supported.")
else:
self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
substrs = ["stop reason = breakpoint 1."])
self.expect("mpx-table show a",
substrs = ['lbound = 0x',
', ubound = 0x',
'(pointer value = 0x',
', metadata = 0x',
')'],
error = False)
self.expect("continue", STOPPED_DUE_TO_BREAKPOINT,
substrs = ["stop reason = breakpoint 2."])
# Check that out of scope pointer cannot be reached.
#
self.expect("mpx-table show a",
substrs = ['Invalid pointer.'],
error = True)
self.expect("mpx-table show tmp",
substrs = ['lbound = 0x',
', ubound = 0x',
'(pointer value = 0x',
', metadata = 0x',
')'],
error = False)
self.expect("continue", STOPPED_DUE_TO_BREAKPOINT,
substrs = ["stop reason = breakpoint 3."])
# Check that the pointer value is correctly updated.
#
self.expect("mpx-table show tmp",
substrs = ['lbound = 0x',
', ubound = 0x',
'(pointer value = 0x2',
', metadata = 0x',
')'],
error = False)
self.expect("continue", STOPPED_DUE_TO_BREAKPOINT,
substrs = ["stop reason = breakpoint 4."])
# After going back to main(), check that out of scope pointer cannot be
# reached.
#
self.expect("mpx-table show tmp",
substrs = ['Invalid pointer.'],
error = True)
self.expect("mpx-table show a",
substrs = ['lbound = 0x',
', ubound = 0x',
'(pointer value = 0x',
', metadata = 0x',
')'],
error = False)
def test_set_command(self):
"""Test 'mpx-table set' command"""
self.build()
plugin_file = os.path.join(configuration.lldb_libs_dir, "liblldbIntelFeatures.so")
if not os.path.isfile(plugin_file):
self.skipTest("features plugin missing.")
plugin_command = " "
seq = ("plugin", "load", plugin_file)
plugin_command = plugin_command.join(seq)
self.runCmd(plugin_command)
exe = os.path.join(os.getcwd(), "a.out")
self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET)
self.b1 = line_number('main.cpp', '// Break 1.')
lldbutil.run_break_set_by_file_and_line(self, "main.cpp", self.b1, num_expected_locations=1)
self.runCmd("run", RUN_SUCCEEDED)
target = self.dbg.GetSelectedTarget()
process = target.GetProcess()
if (process.GetState() == lldb.eStateExited):
self.skipTest("Intel(R) MPX is not supported.")
else:
self.expect("thread backtrace", STOPPED_DUE_TO_BREAKPOINT,
substrs = ["stop reason = breakpoint 1."])
# Check that the BT Entry doesn't already contain the test values.
#
self.expect("mpx-table show a", matching=False,
substrs = ['lbound = 0xcafecafe',
', ubound = 0xbeefbeef'])
# Set the test values.
#
self.expect("mpx-table set a 0xcafecafe 0xbeefbeef", error = False)
# Verify that the test values have been correctly written in the BT
# entry.
#
self.expect("mpx-table show a",
substrs = ['lbound = 0xcafecafe',
', ubound = 0xbeefbeef'],
error = False)
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