globals_linux_x86.hpp

/*
 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
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 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef OS_CPU_LINUX_X86_GLOBALS_LINUX_X86_HPP
#define OS_CPU_LINUX_X86_GLOBALS_LINUX_X86_HPP

// Sets the default values for platform dependent flags used by the runtime system.
// (see globals.hpp)

define_pd_global(bool, DontYieldALot,            false);
#ifdef AMD64
define_pd_global(intx, CompilerThreadStackSize,  1024);
define_pd_global(intx, ThreadStackSize,          1024); // 0 => use system default
define_pd_global(intx, VMThreadStackSize,        1024);
#else
define_pd_global(intx, CompilerThreadStackSize,  512);
// ThreadStackSize 320 allows a couple of test cases to run while
// keeping the number of threads that can be created high.  System
// default ThreadStackSize appears to be 512 which is too big.
define_pd_global(intx, ThreadStackSize,          320);
define_pd_global(intx, VMThreadStackSize,        512);
#endif // AMD64

define_pd_global(size_t, JVMInvokeMethodSlack,   8192);

// Used on 64 bit platforms for UseCompressedOops base address
define_pd_global(size_t, HeapBaseMinAddress,     2*G);

#endif // OS_CPU_LINUX_X86_GLOBALS_LINUX_X86_HPP