src/cpu/x86/vm/globals_x86.hpp

Thu, 03 Nov 2011 04:12:49 -0700

author
twisti
date
Thu, 03 Nov 2011 04:12:49 -0700
changeset 3252
448691f285a5
parent 3156
f08d439fab8c
child 3548
849412a95e45
child 3569
8f4eb44b3b76
permissions
-rw-r--r--

7106944: assert(_pc == *pc_addr) failed may be too strong
Reviewed-by: kvn, never

     1 /*
     2  * Copyright (c) 2000, 2011, 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  */
    25 #ifndef CPU_X86_VM_GLOBALS_X86_HPP
    26 #define CPU_X86_VM_GLOBALS_X86_HPP
    28 #include "utilities/globalDefinitions.hpp"
    29 #include "utilities/macros.hpp"
    31 // Sets the default values for platform dependent flags used by the runtime system.
    32 // (see globals.hpp)
    34 define_pd_global(bool, ConvertSleepToYield,      true);
    35 define_pd_global(bool, ShareVtableStubs,         true);
    36 define_pd_global(bool, CountInterpCalls,         true);
    37 define_pd_global(bool, NeedsDeoptSuspend,        false); // only register window machines need this
    39 define_pd_global(bool, ImplicitNullChecks,       true);  // Generate code for implicit null checks
    40 define_pd_global(bool, UncommonNullCast,         true);  // Uncommon-trap NULLs past to check cast
    42 // See 4827828 for this change. There is no globals_core_i486.hpp. I can't
    43 // assign a different value for C2 without touching a number of files. Use
    44 // #ifdef to minimize the change as it's late in Mantis. -- FIXME.
    45 // c1 doesn't have this problem because the fix to 4858033 assures us
    46 // the the vep is aligned at CodeEntryAlignment whereas c2 only aligns
    47 // the uep and the vep doesn't get real alignment but just slops on by
    48 // only assured that the entry instruction meets the 5 byte size requirement.
    49 #ifdef COMPILER2
    50 define_pd_global(intx, CodeEntryAlignment,       32);
    51 #else
    52 define_pd_global(intx, CodeEntryAlignment,       16);
    53 #endif // COMPILER2
    54 define_pd_global(intx, OptoLoopAlignment,        16);
    55 define_pd_global(intx, InlineFrequencyCount,     100);
    56 define_pd_global(intx, InlineSmallCode,          1000);
    58 define_pd_global(intx, StackYellowPages, 2);
    59 define_pd_global(intx, StackRedPages, 1);
    60 #ifdef AMD64
    61 // Very large C++ stack frames using solaris-amd64 optimized builds
    62 // due to lack of optimization caused by C++ compiler bugs
    63 define_pd_global(intx, StackShadowPages, SOLARIS_ONLY(20) NOT_SOLARIS(6) DEBUG_ONLY(+2));
    64 #else
    65 define_pd_global(intx, StackShadowPages, 3 DEBUG_ONLY(+5));
    66 #endif // AMD64
    68 define_pd_global(intx, PreInflateSpin,           10);
    70 define_pd_global(bool, RewriteBytecodes,     true);
    71 define_pd_global(bool, RewriteFrequentPairs, true);
    73 #ifdef _ALLBSD_SOURCE
    74 define_pd_global(bool, UseMembar,            true);
    75 #else
    76 define_pd_global(bool, UseMembar,            false);
    77 #endif
    79 // GC Ergo Flags
    80 define_pd_global(intx, CMSYoungGenPerWorker, 64*M);  // default max size of CMS young gen, per GC worker thread
    81 #endif // CPU_X86_VM_GLOBALS_X86_HPP

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