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comparison: src/os/linux/vm/globals_linux.hpp
src/os/linux/vm/globals_linux.hpp
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| 1 /* | |
| 2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #ifndef OS_LINUX_VM_GLOBALS_LINUX_HPP | |
| 26 #define OS_LINUX_VM_GLOBALS_LINUX_HPP | |
| 27 | |
| 28 // | |
| 29 // Defines Linux specific flags. They are not available on other platforms. | |
| 30 // | |
| 31 #define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \ | |
| 32 product(bool, UseOprofile, false, \ | |
| 33 "enable support for Oprofile profiler") \ | |
| 34 \ | |
| 35 product(bool, UseLinuxPosixThreadCPUClocks, true, \ | |
| 36 "enable fast Linux Posix clocks where available") \ | |
| 37 /* NB: The default value of UseLinuxPosixThreadCPUClocks may be \ | |
| 38 overridden in Arguments::parse_each_vm_init_arg. */ \ | |
| 39 \ | |
| 40 product(bool, UseHugeTLBFS, false, \ | |
| 41 "Use MAP_HUGETLB for large pages") \ | |
| 42 \ | |
| 43 product(bool, UseTransparentHugePages, false, \ | |
| 44 "Use MADV_HUGEPAGE for large pages") \ | |
| 45 \ | |
| 46 product(bool, LoadExecStackDllInVMThread, true, \ | |
| 47 "Load DLLs with executable-stack attribute in the VM Thread") \ | |
| 48 \ | |
| 49 product(bool, UseSHM, false, \ | |
| 50 "Use SYSV shared memory for large pages") | |
| 51 | |
| 52 // | |
| 53 // Defines Linux-specific default values. The flags are available on all | |
| 54 // platforms, but they may have different default values on other platforms. | |
| 55 // | |
| 56 define_pd_global(bool, UseLargePages, false); | |
| 57 define_pd_global(bool, UseLargePagesIndividualAllocation, false); | |
| 58 define_pd_global(bool, UseOSErrorReporting, false); | |
| 59 define_pd_global(bool, UseThreadPriorities, true) ; | |
| 60 | |
| 61 #endif // OS_LINUX_VM_GLOBALS_LINUX_HPP |
