Mercurial > hg > graal-jvmci-8
annotate src/cpu/zero/vm/stack_zero.cpp @ 24234:ea6f94ab283b default tip
Added tag jvmci-0.36 for changeset 8128b98d4736
| author | Gilles Duboscq <gilles.m.duboscq@oracle.com> |
|---|---|
| date | Mon, 18 Sep 2017 18:49:45 +0200 |
| parents | c6affd32651a |
| children |
| rev | line source |
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| 1383 | 1 /* |
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2 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. |
| 1383 | 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 * | |
|
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
| 1383 | 23 * |
| 24 */ | |
| 25 | |
| 1972 | 26 #include "precompiled.hpp" |
| 27 #include "interpreter/interpreterRuntime.hpp" | |
| 28 #include "stack_zero.hpp" | |
| 29 #include "stack_zero.inline.hpp" | |
| 1383 | 30 |
| 1511 | 31 int ZeroStack::suggest_size(Thread *thread) const { |
| 32 assert(needs_setup(), "already set up"); | |
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33 int abi_available = abi_stack_available(thread); |
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34 assert(abi_available >= 0, "available abi stack must be >= 0"); |
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35 return align_size_down(abi_available / 2, wordSize); |
| 1511 | 36 } |
| 37 | |
| 1383 | 38 void ZeroStack::handle_overflow(TRAPS) { |
| 39 JavaThread *thread = (JavaThread *) THREAD; | |
| 40 | |
| 41 // Set up the frame anchor if it isn't already | |
| 42 bool has_last_Java_frame = thread->has_last_Java_frame(); | |
| 43 if (!has_last_Java_frame) { | |
| 1505 | 44 intptr_t *sp = thread->zero_stack()->sp(); |
| 1383 | 45 ZeroFrame *frame = thread->top_zero_frame(); |
| 46 while (frame) { | |
| 47 if (frame->is_shark_frame()) | |
| 48 break; | |
| 49 | |
| 50 if (frame->is_interpreter_frame()) { | |
| 51 interpreterState istate = | |
| 52 frame->as_interpreter_frame()->interpreter_state(); | |
| 53 if (istate->self_link() == istate) | |
| 54 break; | |
| 55 } | |
| 56 | |
| 1505 | 57 sp = ((intptr_t *) frame) + 1; |
| 1383 | 58 frame = frame->next(); |
| 59 } | |
| 60 | |
| 61 if (frame == NULL) | |
| 62 fatal("unrecoverable stack overflow"); | |
| 63 | |
| 1505 | 64 thread->set_last_Java_frame(frame, sp); |
| 1383 | 65 } |
| 66 | |
| 67 // Throw the exception | |
| 68 switch (thread->thread_state()) { | |
| 69 case _thread_in_Java: | |
| 70 InterpreterRuntime::throw_StackOverflowError(thread); | |
| 71 break; | |
| 72 | |
| 73 case _thread_in_vm: | |
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74 Exceptions::throw_stack_overflow_exception(thread, __FILE__, __LINE__, |
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75 methodHandle()); |
| 1383 | 76 break; |
| 77 | |
| 78 default: | |
| 79 ShouldNotReachHere(); | |
| 80 } | |
| 81 | |
| 82 // Reset the frame anchor if necessary | |
| 83 if (!has_last_Java_frame) | |
| 84 thread->reset_last_Java_frame(); | |
| 85 } | |
| 1505 | 86 |
| 87 #ifndef PRODUCT | |
| 88 void ZeroStack::zap(int c) { | |
| 89 memset(_base, c, available_words() * wordSize); | |
| 90 } | |
| 91 #endif // PRODUCT |