Mercurial > hg > graal-compiler
view src/cpu/zero/vm/stack_zero.cpp @ 1531:2b554795d0f4
Added tag jdk7-b95 for changeset 91d861ba858d
author | mikejwre |
---|---|
date | Thu, 27 May 2010 10:57:13 -0700 |
parents | 348346af6676 |
children | c18cbe5936b8 |
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/* * Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_stack_zero.cpp.incl" 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__); 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