56 lines
2.4 KiB
C++
56 lines
2.4 KiB
C++
/*
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* Copyright (c) 2023 SAP SE. All rights reserved.
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* Copyright (c) 2023, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "precompiled.hpp"
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#include "nmt/nmtCommon.hpp"
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#include "nmt/memTracker.hpp"
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#include "nmt/virtualMemoryTracker.hpp"
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#include "runtime/os.hpp"
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#include "unittest.hpp"
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// Tests the assignment operator of ReservedMemoryRegion
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TEST_VM(NMT, ReservedRegionCopy) {
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address dummy1 = (address)0x10000000;
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NativeCallStack stack1(&dummy1, 1);
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ReservedMemoryRegion region1(dummy1, os::vm_page_size(), stack1, mtThreadStack);
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VirtualMemorySummary::record_reserved_memory(os::vm_page_size(), region1.mem_tag());
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region1.add_committed_region(dummy1, os::vm_page_size(), stack1);
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address dummy2 = (address)0x20000000;
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NativeCallStack stack2(&dummy2, 1);
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ReservedMemoryRegion region2(dummy2, os::vm_page_size(), stack2, mtCode);
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VirtualMemorySummary::record_reserved_memory(os::vm_page_size(), region2.mem_tag());
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region2.add_committed_region(dummy2, os::vm_page_size(), stack2);
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region2 = region1;
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CommittedRegionIterator itr = region2.iterate_committed_regions();
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const CommittedMemoryRegion* rgn = itr.next();
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ASSERT_EQ(rgn->base(), dummy1); // Now we should see dummy1
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ASSERT_EQ(region2.mem_tag(), mtThreadStack); // Should be correct memory tag
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ASSERT_EQ(region2.call_stack()->get_frame(0), dummy1); // Check the stack
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rgn = itr.next();
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ASSERT_EQ(rgn, (const CommittedMemoryRegion*)nullptr); // and nothing else
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}
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