7147740: add assertions to check stack alignment on VM entry from generated code (x64)
Summary: check stack alignment on VM entry on x64.
Reviewed-by: kvn, never
/*
* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* 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,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#ifndef OS_CPU_BSD_X86_VM_GLOBALS_BSD_X86_HPP
#define OS_CPU_BSD_X86_VM_GLOBALS_BSD_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, ThreadStackSize, 1024); // 0 => use system default
define_pd_global(intx, VMThreadStackSize, 1024);
#else
// 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(intx, CompilerThreadStackSize, 0);
define_pd_global(intx, SurvivorRatio, 8);
define_pd_global(uintx, JVMInvokeMethodSlack, 8192);
// Only used on 64 bit platforms
define_pd_global(uintx, HeapBaseMinAddress, 2*G);
// Only used on 64 bit Windows platforms
define_pd_global(bool, UseVectoredExceptions, false);
#endif // OS_CPU_BSD_X86_VM_GLOBALS_BSD_X86_HPP