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/*
* Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#ifdef AIX
#include "runtime/os.inline.hpp"
#include "utilities/debug.hpp"
#include "utilities/globalDefinitions.hpp"
#include "unittest.hpp"
// On Aix, when using shmget() in os::attempt_reserve_memory_at() we should fail with attach
// attempts not aligned to shmget() segment boundaries (256m)
// But shmget() is only used in cases we want to have 64K pages and mmap() does not provide it.
TEST_VM(os_aix, aix_reserve_at_non_shmlba_aligned_address) {
if (os::vm_page_size() != 4*K && !os::Aix::supports_64K_mmap_pages()) {
// With this condition true shmget() is used inside
char* p = os::attempt_reserve_memory_at((char*)0x1f00000, M, mtTest);
ASSERT_EQ(p, nullptr); // should have failed
p = os::attempt_reserve_memory_at((char*)((64 * G) + M), M, mtTest);
ASSERT_EQ(p, nullptr); // should have failed
}
}
#endif // AIX
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