Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/zero/vm/stack_zero.cpp
src/cpu/zero/vm/stack_zero.cpp
- changeset 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
equal
deleted
inserted
replaced
| -1:000000000000 | 0:f90c822e73f8 |
|---|---|
| 1 /* | |
| 2 * Copyright (c) 2003, 2011, 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 */ | |
| 25 | |
| 26 #include "precompiled.hpp" | |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "stack_zero.hpp" | |
| 29 #include "stack_zero.inline.hpp" | |
| 30 | |
| 31 int ZeroStack::suggest_size(Thread *thread) const { | |
| 32 assert(needs_setup(), "already set up"); | |
| 33 return align_size_down(abi_stack_available(thread) / 2, wordSize); | |
| 34 } | |
| 35 | |
| 36 void ZeroStack::handle_overflow(TRAPS) { | |
| 37 JavaThread *thread = (JavaThread *) THREAD; | |
| 38 | |
| 39 // Set up the frame anchor if it isn't already | |
| 40 bool has_last_Java_frame = thread->has_last_Java_frame(); | |
| 41 if (!has_last_Java_frame) { | |
| 42 intptr_t *sp = thread->zero_stack()->sp(); | |
| 43 ZeroFrame *frame = thread->top_zero_frame(); | |
| 44 while (frame) { | |
| 45 if (frame->is_shark_frame()) | |
| 46 break; | |
| 47 | |
| 48 if (frame->is_interpreter_frame()) { | |
| 49 interpreterState istate = | |
| 50 frame->as_interpreter_frame()->interpreter_state(); | |
| 51 if (istate->self_link() == istate) | |
| 52 break; | |
| 53 } | |
| 54 | |
| 55 sp = ((intptr_t *) frame) + 1; | |
| 56 frame = frame->next(); | |
| 57 } | |
| 58 | |
| 59 if (frame == NULL) | |
| 60 fatal("unrecoverable stack overflow"); | |
| 61 | |
| 62 thread->set_last_Java_frame(frame, sp); | |
| 63 } | |
| 64 | |
| 65 // Throw the exception | |
| 66 switch (thread->thread_state()) { | |
| 67 case _thread_in_Java: | |
| 68 InterpreterRuntime::throw_StackOverflowError(thread); | |
| 69 break; | |
| 70 | |
| 71 case _thread_in_vm: | |
| 72 Exceptions::throw_stack_overflow_exception(thread, __FILE__, __LINE__, | |
| 73 methodHandle()); | |
| 74 break; | |
| 75 | |
| 76 default: | |
| 77 ShouldNotReachHere(); | |
| 78 } | |
| 79 | |
| 80 // Reset the frame anchor if necessary | |
| 81 if (!has_last_Java_frame) | |
| 82 thread->reset_last_Java_frame(); | |
| 83 } | |
| 84 | |
| 85 #ifndef PRODUCT | |
| 86 void ZeroStack::zap(int c) { | |
| 87 memset(_base, c, available_words() * wordSize); | |
| 88 } | |
| 89 #endif // PRODUCT |
