Mercurial > hg > graal-jvmci-8
view src/cpu/zero/vm/stack_zero.cpp @ 7291:a748e4d44694
Truffle API to specify type-specalized Node classes; annotation processor for automatic code generation of the type-specialized Node classes during the build process
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 21 Dec 2012 10:44:31 -0800 |
parents | d17bd0b18663 |
children | c6affd32651a |
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/* * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. * Copyright 2010 Red Hat, Inc. * 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. * */ #include "precompiled.hpp" #include "interpreter/interpreterRuntime.hpp" #include "stack_zero.hpp" #include "stack_zero.inline.hpp" int ZeroStack::suggest_size(Thread *thread) const { assert(needs_setup(), "already set up"); return align_size_down(abi_stack_available(thread) / 2, wordSize); } void ZeroStack::handle_overflow(TRAPS) { JavaThread *thread = (JavaThread *) THREAD; // Set up the frame anchor if it isn't already bool has_last_Java_frame = thread->has_last_Java_frame(); if (!has_last_Java_frame) { intptr_t *sp = thread->zero_stack()->sp(); ZeroFrame *frame = thread->top_zero_frame(); while (frame) { if (frame->is_shark_frame()) break; if (frame->is_interpreter_frame()) { interpreterState istate = frame->as_interpreter_frame()->interpreter_state(); if (istate->self_link() == istate) break; } sp = ((intptr_t *) frame) + 1; frame = frame->next(); } if (frame == NULL) fatal("unrecoverable stack overflow"); thread->set_last_Java_frame(frame, sp); } // Throw the exception switch (thread->thread_state()) { case _thread_in_Java: InterpreterRuntime::throw_StackOverflowError(thread); break; case _thread_in_vm: Exceptions::throw_stack_overflow_exception(thread, __FILE__, __LINE__, methodHandle()); break; default: ShouldNotReachHere(); } // Reset the frame anchor if necessary if (!has_last_Java_frame) thread->reset_last_Java_frame(); } #ifndef PRODUCT void ZeroStack::zap(int c) { memset(_base, c, available_words() * wordSize); } #endif // PRODUCT