| /* | |
| * Copyright (c) 2000, 2024, Oracle and/or its affiliates. All rights reserved. | |
| * Copyright (c) 2014, Red Hat Inc. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
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| * This code is free software; you can redistribute it and/or modify it | |
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| * published by the Free Software Foundation. | |
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| * 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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| * | |
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| */ | |
| #ifndef OS_CPU_LINUX_AARCH64_GLOBALS_LINUX_AARCH64_HPP | |
| #define OS_CPU_LINUX_AARCH64_GLOBALS_LINUX_AARCH64_HPP | |
| // Sets the default values for platform dependent flags used by the runtime system. | |
| // (see globals.hpp) | |
| // Set default stack sizes < 2MB so as to prevent stacks from getting | |
| // large-page aligned and backed by THPs on systems where 2MB is the | |
| // default huge page size. For non-JavaThreads, glibc may add an additional | |
| // guard page to the total stack size, so to keep the default sizes same | |
| // for all the following flags, we set them to 2 pages less than 2MB. On | |
| // systems where 2MB is the default large page size, 4KB is most commonly | |
| // the regular page size. | |
| define_pd_global(intx, ThreadStackSize, 2040); // 0 => use system default | |
| define_pd_global(intx, VMThreadStackSize, 2040); | |
| define_pd_global(intx, CompilerThreadStackSize, 2040); | |
| define_pd_global(uintx,JVMInvokeMethodSlack, 8192); | |
| // Used on 64 bit platforms for UseCompressedOops base address | |
| define_pd_global(uintx,HeapBaseMinAddress, 2*G); | |
| class Thread; | |
| extern __thread Thread *aarch64_currentThread; | |
| #endif // OS_CPU_LINUX_AARCH64_GLOBALS_LINUX_AARCH64_HPP |