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