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nmethod.inline.hpp
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/*
* Copyright (c) 2017, 2024, Oracle and/or its affiliates. All rights reserved.
* 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.
*
*/
#ifndef SHARE_CODE_NMETHOD_INLINE_HPP
#defineSHARE_CODE_NMETHOD_INLINE_HPP
#include"code/nmethod.hpp"
#include"code/nativeInst.hpp"
#include"runtime/atomic.hpp"
#include"runtime/frame.hpp"
inlineboolnmethod::is_deopt_pc(address pc) { returnis_deopt_entry(pc) || is_deopt_mh_entry(pc); }
// When using JVMCI the address might be off by the size of a call instruction.
inlineboolnmethod::is_deopt_entry(address pc) {
return pc == deopt_handler_begin()
#if INCLUDE_JVMCI
|| (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::byte_size()))
#endif
;
}
inlineboolnmethod::is_deopt_mh_entry(address pc) {
return pc == deopt_mh_handler_begin()
#if INCLUDE_JVMCI
|| (is_compiled_by_jvmci() && pc == (deopt_mh_handler_begin() + NativeCall::byte_size()))
#endif
;
}
// class ExceptionCache methods
inlineintExceptionCache::count() { returnAtomic::load_acquire(&_count); }
address ExceptionCache::pc_at(int index) {
assert(index >= 0 && index < count(),"");
return _pc[index];
}
address ExceptionCache::handler_at(int index) {
assert(index >= 0 && index < count(),"");
return _handler[index];
}
// increment_count is only called under lock, but there may be concurrent readers.
inlinevoidExceptionCache::increment_count() { Atomic::release_store(&_count, _count + 1); }
#endif// SHARE_CODE_NMETHOD_INLINE_HPP