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src/os/linux/vm/globals_linux.hpp@95a08233f46c (annotated)

src/os/linux/vm/globals_linux.hpp

Mon, 28 May 2018 10:33:52 +0800

author

aoqi

date

Mon, 28 May 2018 10:33:52 +0800

changeset 9041

95a08233f46c

parent 8942

9187473df31d

parent 8856

ac27a9c85bea

child 9448

73d689add964

permissions

-rw-r--r--

Merge

aoqi@0	1	/*
shshahma@8619	2	* Copyright (c) 2005, 2016, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*
aoqi@0	23	*/
aoqi@0	24
aoqi@0	25	#ifndef OS_LINUX_VM_GLOBALS_LINUX_HPP
aoqi@0	26	#define OS_LINUX_VM_GLOBALS_LINUX_HPP
aoqi@0	27
aoqi@0	28	//
aoqi@0	29	// Defines Linux specific flags. They are not available on other platforms.
aoqi@0	30	//
aoqi@0	31	#define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct) \
aoqi@0	32	product(bool, UseOprofile, false, \
aoqi@0	33	"enable support for Oprofile profiler") \
aoqi@0	34	\
aoqi@0	35	product(bool, UseLinuxPosixThreadCPUClocks, true, \
aoqi@0	36	"enable fast Linux Posix clocks where available") \
aoqi@0	37	/* NB: The default value of UseLinuxPosixThreadCPUClocks may be \
aoqi@0	38	overridden in Arguments::parse_each_vm_init_arg. */ \
aoqi@0	39	\
aoqi@0	40	product(bool, UseHugeTLBFS, false, \
aoqi@0	41	"Use MAP_HUGETLB for large pages") \
aoqi@0	42	\
aoqi@0	43	product(bool, UseTransparentHugePages, false, \
aoqi@0	44	"Use MADV_HUGEPAGE for large pages") \
aoqi@0	45	\
aoqi@0	46	product(bool, LoadExecStackDllInVMThread, true, \
aoqi@0	47	"Load DLLs with executable-stack attribute in the VM Thread") \
aoqi@0	48	\
aoqi@0	49	product(bool, UseSHM, false, \
shshahma@8619	50	"Use SYSV shared memory for large pages") \
shshahma@8619	51	\
shshahma@8619	52	diagnostic(bool, PrintActiveCpus, false, \
shshahma@8619	53	"Print the number of CPUs detected in os::active_processor_count")
aoqi@0	54
aoqi@0	55	//
aoqi@0	56	// Defines Linux-specific default values. The flags are available on all
aoqi@0	57	// platforms, but they may have different default values on other platforms.
aoqi@0	58	//
aoqi@0	59	define_pd_global(bool, UseLargePages, false);
aoqi@0	60	define_pd_global(bool, UseLargePagesIndividualAllocation, false);
aoqi@0	61	define_pd_global(bool, UseOSErrorReporting, false);
aoqi@0	62	define_pd_global(bool, UseThreadPriorities, true) ;
aoqi@0	63
aoqi@0	64	#endif // OS_LINUX_VM_GLOBALS_LINUX_HPP