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);

   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  *
  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, 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);