1 /*
2 * Copyright (c) 2005, 2015, 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 *
31 #define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, range, constraint) \
32 \
33 product(bool, UseOprofile, false, \
34 "enable support for Oprofile profiler") \
35 \
36 /* NB: The default value of UseLinuxPosixThreadCPUClocks may be */ \
37 /* overridden in Arguments::parse_each_vm_init_arg. */ \
38 product(bool, UseLinuxPosixThreadCPUClocks, true, \
39 "enable fast Linux Posix clocks where available") \
40 \
41 product(bool, UseHugeTLBFS, false, \
42 "Use MAP_HUGETLB for large pages") \
43 \
44 product(bool, UseTransparentHugePages, false, \
45 "Use MADV_HUGEPAGE for large pages") \
46 \
47 product(bool, LoadExecStackDllInVMThread, true, \
48 "Load DLLs with executable-stack attribute in the VM Thread") \
49 \
50 product(bool, UseSHM, false, \
51 "Use SYSV shared memory for large pages")
52
53 //
54 // Defines Linux-specific default values. The flags are available on all
55 // platforms, but they may have different default values on other platforms.
56 //
57 define_pd_global(bool, UseLargePages, false);
58 define_pd_global(bool, UseLargePagesIndividualAllocation, false);
59 define_pd_global(bool, UseOSErrorReporting, false);
60 define_pd_global(bool, UseThreadPriorities, true) ;
61
62 #endif // OS_LINUX_VM_GLOBALS_LINUX_HPP
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1 /*
2 * Copyright (c) 2005, 2016, 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 *
31 #define RUNTIME_OS_FLAGS(develop, develop_pd, product, product_pd, diagnostic, notproduct, range, constraint) \
32 \
33 product(bool, UseOprofile, false, \
34 "enable support for Oprofile profiler") \
35 \
36 /* NB: The default value of UseLinuxPosixThreadCPUClocks may be */ \
37 /* overridden in Arguments::parse_each_vm_init_arg. */ \
38 product(bool, UseLinuxPosixThreadCPUClocks, true, \
39 "enable fast Linux Posix clocks where available") \
40 \
41 product(bool, UseHugeTLBFS, false, \
42 "Use MAP_HUGETLB for large pages") \
43 \
44 product(bool, UseTransparentHugePages, false, \
45 "Use MADV_HUGEPAGE for large pages") \
46 \
47 product(bool, LoadExecStackDllInVMThread, true, \
48 "Load DLLs with executable-stack attribute in the VM Thread") \
49 \
50 product(bool, UseSHM, false, \
51 "Use SYSV shared memory for large pages") \
52 \
53 diagnostic(bool, UseCpuAllocPath, false, \
54 "Use CPU_ALLOC code path in os::active_processor_count ")
55
56 //
57 // Defines Linux-specific default values. The flags are available on all
58 // platforms, but they may have different default values on other platforms.
59 //
60 define_pd_global(bool, UseLargePages, false);
61 define_pd_global(bool, UseLargePagesIndividualAllocation, false);
62 define_pd_global(bool, UseOSErrorReporting, false);
63 define_pd_global(bool, UseThreadPriorities, true) ;
64
65 #endif // OS_LINUX_VM_GLOBALS_LINUX_HPP
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