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Diffstat (limited to 'packages/Python/lldbsuite/test/functionalities/memory')
3 files changed, 83 insertions, 0 deletions
diff --git a/packages/Python/lldbsuite/test/functionalities/memory/cache/Makefile b/packages/Python/lldbsuite/test/functionalities/memory/cache/Makefile new file mode 100644 index 000000000000..314f1cb2f077 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/memory/cache/Makefile @@ -0,0 +1,5 @@ +LEVEL = ../../../make + +CXX_SOURCES := main.cpp + +include $(LEVEL)/Makefile.rules diff --git a/packages/Python/lldbsuite/test/functionalities/memory/cache/TestMemoryCache.py b/packages/Python/lldbsuite/test/functionalities/memory/cache/TestMemoryCache.py new file mode 100644 index 000000000000..a65882d3fa43 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/memory/cache/TestMemoryCache.py @@ -0,0 +1,64 @@ +""" +Test the MemoryCache L1 flush. +""" + +from __future__ import print_function + + + +import os, time +import re +import lldb +from lldbsuite.test.decorators import * +from lldbsuite.test.lldbtest import * +import lldbsuite.test.lldbutil as lldbutil + +class MemoryCacheTestCase(TestBase): + + mydir = TestBase.compute_mydir(__file__) + + def setUp(self): + # Call super's setUp(). + TestBase.setUp(self) + # Find the line number to break inside main(). + self.line = line_number('main.cpp', '// Set break point at this line.') + + @expectedFlakeyOS(oslist=["windows"]) + def test_memory_cache(self): + """Test the MemoryCache class with a sequence of 'memory read' and 'memory write' operations.""" + self.build() + exe = os.path.join(os.getcwd(), "a.out") + self.runCmd("file " + exe, CURRENT_EXECUTABLE_SET) + + # Break in main() after the variables are assigned values. + lldbutil.run_break_set_by_file_and_line (self, "main.cpp", self.line, num_expected_locations=1, loc_exact=True) + + 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']) + + # Read a chunk of memory containing &my_ints[0]. The number of bytes read + # must be greater than m_L2_cache_line_byte_size to make sure the L1 + # cache is used. + self.runCmd('memory read -f d -c 201 `&my_ints - 100`') + + # Check the value of my_ints[0] is the same as set in main.cpp. + line = self.res.GetOutput().splitlines()[100] + self.assertTrue(0x00000042 == int(line.split(':')[1], 0)) + + # Change the value of my_ints[0] in memory. + self.runCmd("memory write -s 4 `&my_ints` AA") + + # Re-read the chunk of memory. The cache line should have been + # flushed because of the 'memory write'. + self.runCmd('memory read -f d -c 201 `&my_ints - 100`') + + # Check the value of my_ints[0] have been updated correctly. + line = self.res.GetOutput().splitlines()[100] + self.assertTrue(0x000000AA == int(line.split(':')[1], 0)) diff --git a/packages/Python/lldbsuite/test/functionalities/memory/cache/main.cpp b/packages/Python/lldbsuite/test/functionalities/memory/cache/main.cpp new file mode 100644 index 000000000000..7f25e2f4bf68 --- /dev/null +++ b/packages/Python/lldbsuite/test/functionalities/memory/cache/main.cpp @@ -0,0 +1,14 @@ +//===-- main.cpp ------------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +int main () +{ + int my_ints[] = {0x42}; + return 0; // Set break point at this line. +} |