Tue, 24 Dec 2013 11:48:39 -0800
8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013
Summary: Copyright year updated for files modified during 2013
Reviewed-by: twisti, iveresov
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. |
aoqi@0 | 8 | * |
aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 13 | * accompanied this code). |
aoqi@0 | 14 | * |
aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 18 | * |
aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 21 | * questions. |
aoqi@0 | 22 | * |
aoqi@0 | 23 | */ |
aoqi@0 | 24 | |
aoqi@0 | 25 | #include "precompiled.hpp" |
aoqi@0 | 26 | #include "classfile/systemDictionary.hpp" |
aoqi@0 | 27 | #include "code/codeCache.hpp" |
aoqi@0 | 28 | #include "code/compiledIC.hpp" |
aoqi@0 | 29 | #include "code/icBuffer.hpp" |
aoqi@0 | 30 | #include "code/nmethod.hpp" |
aoqi@0 | 31 | #include "code/vtableStubs.hpp" |
aoqi@0 | 32 | #include "interpreter/interpreter.hpp" |
aoqi@0 | 33 | #include "interpreter/linkResolver.hpp" |
aoqi@0 | 34 | #include "memory/metadataFactory.hpp" |
aoqi@0 | 35 | #include "memory/oopFactory.hpp" |
aoqi@0 | 36 | #include "oops/method.hpp" |
aoqi@0 | 37 | #include "oops/oop.inline.hpp" |
aoqi@0 | 38 | #include "oops/symbol.hpp" |
aoqi@0 | 39 | #include "runtime/icache.hpp" |
aoqi@0 | 40 | #include "runtime/sharedRuntime.hpp" |
aoqi@0 | 41 | #include "runtime/stubRoutines.hpp" |
aoqi@0 | 42 | #include "utilities/events.hpp" |
aoqi@0 | 43 | |
aoqi@0 | 44 | |
aoqi@0 | 45 | // Release the CompiledICHolder* associated with this call site is there is one. |
aoqi@0 | 46 | void CompiledIC::cleanup_call_site(virtual_call_Relocation* call_site) { |
aoqi@0 | 47 | // This call site might have become stale so inspect it carefully. |
aoqi@0 | 48 | NativeCall* call = nativeCall_at(call_site->addr()); |
aoqi@0 | 49 | if (is_icholder_entry(call->destination())) { |
aoqi@0 | 50 | NativeMovConstReg* value = nativeMovConstReg_at(call_site->cached_value()); |
aoqi@0 | 51 | InlineCacheBuffer::queue_for_release((CompiledICHolder*)value->data()); |
aoqi@0 | 52 | } |
aoqi@0 | 53 | } |
aoqi@0 | 54 | |
aoqi@0 | 55 | bool CompiledIC::is_icholder_call_site(virtual_call_Relocation* call_site) { |
aoqi@0 | 56 | // This call site might have become stale so inspect it carefully. |
aoqi@0 | 57 | NativeCall* call = nativeCall_at(call_site->addr()); |
aoqi@0 | 58 | return is_icholder_entry(call->destination()); |
aoqi@0 | 59 | } |
aoqi@0 | 60 | |
aoqi@0 | 61 | //----------------------------------------------------------------------------- |
aoqi@0 | 62 | // High-level access to an inline cache. Guaranteed to be MT-safe. |
aoqi@0 | 63 | |
aoqi@0 | 64 | CompiledIC::CompiledIC(nmethod* nm, NativeCall* call) |
aoqi@0 | 65 | : _ic_call(call) |
aoqi@0 | 66 | { |
aoqi@0 | 67 | address ic_call = call->instruction_address(); |
aoqi@0 | 68 | |
aoqi@0 | 69 | assert(ic_call != NULL, "ic_call address must be set"); |
aoqi@0 | 70 | assert(nm != NULL, "must pass nmethod"); |
aoqi@0 | 71 | assert(nm->contains(ic_call), "must be in nmethod"); |
aoqi@0 | 72 | |
aoqi@0 | 73 | // Search for the ic_call at the given address. |
aoqi@0 | 74 | RelocIterator iter(nm, ic_call, ic_call+1); |
aoqi@0 | 75 | bool ret = iter.next(); |
aoqi@0 | 76 | assert(ret == true, "relocInfo must exist at this address"); |
aoqi@0 | 77 | assert(iter.addr() == ic_call, "must find ic_call"); |
aoqi@0 | 78 | if (iter.type() == relocInfo::virtual_call_type) { |
aoqi@0 | 79 | virtual_call_Relocation* r = iter.virtual_call_reloc(); |
aoqi@0 | 80 | _is_optimized = false; |
aoqi@0 | 81 | _value = nativeMovConstReg_at(r->cached_value()); |
aoqi@0 | 82 | } else { |
aoqi@0 | 83 | assert(iter.type() == relocInfo::opt_virtual_call_type, "must be a virtual call"); |
aoqi@0 | 84 | _is_optimized = true; |
aoqi@0 | 85 | _value = NULL; |
aoqi@0 | 86 | } |
aoqi@0 | 87 | } |
aoqi@0 | 88 | |
aoqi@0 | 89 | // ---------------------------------------------------------------------------- |
aoqi@0 | 90 | |
aoqi@0 | 91 | void CompiledStaticCall::emit_to_interp_stub(CodeBuffer &cbuf) { |
aoqi@0 | 92 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 93 | } |
aoqi@0 | 94 | |
aoqi@0 | 95 | int CompiledStaticCall::to_interp_stub_size() { |
aoqi@0 | 96 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 97 | return 0; |
aoqi@0 | 98 | } |
aoqi@0 | 99 | |
aoqi@0 | 100 | // Relocation entries for call stub, compiled java to interpreter. |
aoqi@0 | 101 | int CompiledStaticCall::reloc_to_interp_stub() { |
aoqi@0 | 102 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 103 | return 0; |
aoqi@0 | 104 | } |
aoqi@0 | 105 | |
aoqi@0 | 106 | void CompiledStaticCall::set_to_interpreted(methodHandle callee, address entry) { |
aoqi@0 | 107 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 108 | } |
aoqi@0 | 109 | |
aoqi@0 | 110 | void CompiledStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) { |
aoqi@0 | 111 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 112 | } |
aoqi@0 | 113 | |
aoqi@0 | 114 | //----------------------------------------------------------------------------- |
aoqi@0 | 115 | // Non-product mode code. |
aoqi@0 | 116 | #ifndef PRODUCT |
aoqi@0 | 117 | |
aoqi@0 | 118 | void CompiledStaticCall::verify() { |
aoqi@0 | 119 | ShouldNotReachHere(); // Only needed for COMPILER2. |
aoqi@0 | 120 | } |
aoqi@0 | 121 | |
aoqi@0 | 122 | #endif // !PRODUCT |