aoqi@0: /*
poonam@9348:  * Copyright (c) 2005, 2018, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef OS_LINUX_VM_GLOBALS_LINUX_HPP
aoqi@0: #define OS_LINUX_VM_GLOBALS_LINUX_HPP
aoqi@0: 
aoqi@0: //
aoqi@0: // Defines Linux specific flags. They are not available on other platforms.
aoqi@0: //
aoqi@0: #define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \
aoqi@0:   product(bool, UseOprofile, false,                                     \
aoqi@0:         "enable support for Oprofile profiler")                         \
aoqi@0:                                                                         \
aoqi@0:   product(bool, UseLinuxPosixThreadCPUClocks, true,                     \
aoqi@0:           "enable fast Linux Posix clocks where available")             \
aoqi@0: /*  NB: The default value of UseLinuxPosixThreadCPUClocks may be        \
aoqi@0:     overridden in Arguments::parse_each_vm_init_arg.  */                \
aoqi@0:                                                                         \
aoqi@0:   product(bool, UseHugeTLBFS, false,                                    \
aoqi@0:           "Use MAP_HUGETLB for large pages")                            \
aoqi@0:                                                                         \
aoqi@0:   product(bool, UseTransparentHugePages, false,                         \
aoqi@0:           "Use MADV_HUGEPAGE for large pages")                          \
aoqi@0:                                                                         \
aoqi@0:   product(bool, LoadExecStackDllInVMThread, true,                       \
aoqi@0:           "Load DLLs with executable-stack attribute in the VM Thread") \
aoqi@0:                                                                         \
aoqi@0:   product(bool, UseSHM, false,                                          \
shshahma@8619:           "Use SYSV shared memory for large pages")                     \
shshahma@8619:                                                                         \
poonam@9348:   product(bool, UseContainerSupport, true,                              \
poonam@9348:           "Enable detection and runtime container configuration support") \
poonam@9348:                                                                         \
poonam@9348:   product(bool, PreferContainerQuotaForCPUCount, true,                  \
poonam@9348:           "Calculate the container CPU availability based on the value" \
poonam@9348:           " of quotas (if set), when true. Otherwise, use the CPU"      \
poonam@9348:           " shares value, provided it is less than quota.")
aoqi@0: 
aoqi@0: //
aoqi@0: // Defines Linux-specific default values. The flags are available on all
aoqi@0: // platforms, but they may have different default values on other platforms.
aoqi@0: //
aoqi@0: define_pd_global(bool, UseLargePages, false);
aoqi@0: define_pd_global(bool, UseLargePagesIndividualAllocation, false);
aoqi@0: define_pd_global(bool, UseOSErrorReporting, false);
aoqi@0: define_pd_global(bool, UseThreadPriorities, true) ;
aoqi@0: 
aoqi@0: #endif // OS_LINUX_VM_GLOBALS_LINUX_HPP