jdk8-mips64-public/hotspot: src/cpu/zero/vm/stack

8064815: Zero+PPC64: Stack overflow when running Maven
Reviewed-by: kvn, simonis
Contributed-by: sgehwolf@redhat.com

     1 /*

     2  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * Copyright 2010 Red Hat, Inc.

     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  */

    26 #ifndef CPU_ZERO_VM_STACK_ZERO_INLINE_HPP

    27 #define CPU_ZERO_VM_STACK_ZERO_INLINE_HPP

    29 #include "runtime/thread.hpp"

    30 #include "stack_zero.hpp"

    32 // This function should match SharkStack::CreateStackOverflowCheck

    33 inline void ZeroStack::overflow_check(int required_words, TRAPS) {

    34   // Check the Zero stack

    35   if (available_words() < required_words) {

    36     handle_overflow(THREAD);

    37     return;

    38   }

    40   // Check the ABI stack

    41   if (abi_stack_available(THREAD) < 0) {

    42     handle_overflow(THREAD);

    43     return;

    44   }

    45 }

    47 // This method returns the amount of ABI stack available for us

    48 // to use under normal circumstances.  Note that the returned

    49 // value can be negative.

    50 inline int ZeroStack::abi_stack_available(Thread *thread) const {

    51   guarantee(Thread::current() == thread, "should run in the same thread");

    52   int stack_used = thread->stack_base() - (address) &stack_used

    53     + (StackYellowPages+StackRedPages+StackShadowPages) * os::vm_page_size();

    54   int stack_free = thread->stack_size() - stack_used;

    55   return stack_free;

    56 }

    58 #endif // CPU_ZERO_VM_STACK_ZERO_INLINE_HPP

src/cpu/zero/vm/stack_zero.inline.hpp@c6affd32651a