81 lines
2.7 KiB
C++
81 lines
2.7 KiB
C++
/*
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* Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#ifndef SHARE_CODE_COMPILEDMETHOD_INLINE_HPP
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#define SHARE_CODE_COMPILEDMETHOD_INLINE_HPP
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#include "code/compiledMethod.hpp"
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#include "code/nativeInst.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/frame.hpp"
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inline bool CompiledMethod::is_deopt_pc(address pc) { return is_deopt_entry(pc) || is_deopt_mh_entry(pc); }
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// When using JVMCI the address might be off by the size of a call instruction.
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inline bool CompiledMethod::is_deopt_entry(address pc) {
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return pc == deopt_handler_begin()
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#if INCLUDE_JVMCI
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|| (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))
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#endif
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;
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}
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// -----------------------------------------------------------------------------
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// CompiledMethod::get_deopt_original_pc
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//
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// Return the original PC for the given PC if:
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// (a) the given PC belongs to a nmethod and
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// (b) it is a deopt PC
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inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {
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if (fr->cb() == NULL) return NULL;
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CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();
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if (cm != NULL && cm->is_deopt_pc(fr->pc()))
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return cm->get_original_pc(fr);
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return NULL;
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}
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// class ExceptionCache methods
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inline int ExceptionCache::count() { return Atomic::load_acquire(&_count); }
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address ExceptionCache::pc_at(int index) {
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assert(index >= 0 && index < count(),"");
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return _pc[index];
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}
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address ExceptionCache::handler_at(int index) {
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assert(index >= 0 && index < count(),"");
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return _handler[index];
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}
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// increment_count is only called under lock, but there may be concurrent readers.
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inline void ExceptionCache::increment_count() { Atomic::release_store(&_count, _count + 1); }
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#endif // SHARE_CODE_COMPILEDMETHOD_INLINE_HPP
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