1 /*
   2  * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2015, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  27 #define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 
  35 define_pd_global(bool, ConvertSleepToYield,      true);
  36 define_pd_global(bool, ShareVtableStubs,         true);
  37 define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
  38 
  39 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
  40 define_pd_global(bool, TrapBasedNullChecks,  false);
  41 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  42 
  43 #if defined(COMPILER2) || INCLUDE_JVMCI
  44 define_pd_global(intx, CodeEntryAlignment,       64);
  45 #else
  46 define_pd_global(intx, CodeEntryAlignment,       16);
  47 #endif // COMPILER2
  48 define_pd_global(intx, OptoLoopAlignment,        16);
  49 define_pd_global(intx, InlineFrequencyCount,     100);
  50 
  51 #define DEFAULT_STACK_YELLOW_PAGES (2)
  52 #define DEFAULT_STACK_RED_PAGES (1)
  53 #define DEFAULT_STACK_SHADOW_PAGES (4 DEBUG_ONLY(+5))
  54 #define DEFAULT_STACK_RESERVED_PAGES (0)
  55 

   1 /*
   2  * Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2015, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  27 #define CPU_AARCH64_VM_GLOBALS_AARCH64_HPP
  28 
  29 #include "utilities/globalDefinitions.hpp"
  30 #include "utilities/macros.hpp"
  31 
  32 // Sets the default values for platform dependent flags used by the runtime system.
  33 // (see globals.hpp)
  34 

  35 define_pd_global(bool, ShareVtableStubs,         true);
  36 define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
  37 
  38 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
  39 define_pd_global(bool, TrapBasedNullChecks,  false);
  40 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
  41 
  42 #if defined(COMPILER2) || INCLUDE_JVMCI
  43 define_pd_global(intx, CodeEntryAlignment,       64);
  44 #else
  45 define_pd_global(intx, CodeEntryAlignment,       16);
  46 #endif // COMPILER2
  47 define_pd_global(intx, OptoLoopAlignment,        16);
  48 define_pd_global(intx, InlineFrequencyCount,     100);
  49 
  50 #define DEFAULT_STACK_YELLOW_PAGES (2)
  51 #define DEFAULT_STACK_RED_PAGES (1)
  52 #define DEFAULT_STACK_SHADOW_PAGES (4 DEBUG_ONLY(+5))
  53 #define DEFAULT_STACK_RESERVED_PAGES (0)
  54