f0b21ef72c
R=peria@chromium.org, vogelheim@chromium.org BUG=chromium:617892 NOPRESUBMIT=true Review-Url: https://codereview.chromium.org/2495213003 Cr-Commit-Position: refs/heads/master@{#40981}
74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_EXTERNAL_REFERENCE_TABLE_H_
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#define V8_EXTERNAL_REFERENCE_TABLE_H_
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#include "src/address-map.h"
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namespace v8 {
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namespace internal {
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class Isolate;
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// ExternalReferenceTable is a helper class that defines the relationship
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// between external references and their encodings. It is used to build
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// hashmaps in ExternalReferenceEncoder and ExternalReferenceDecoder.
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class ExternalReferenceTable {
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public:
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static ExternalReferenceTable* instance(Isolate* isolate);
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uint32_t size() const { return static_cast<uint32_t>(refs_.length()); }
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Address address(uint32_t i) { return refs_[i].address; }
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const char* name(uint32_t i) { return refs_[i].name; }
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#ifdef DEBUG
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void increment_count(uint32_t i) { refs_[i].count++; }
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int count(uint32_t i) { return refs_[i].count; }
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void ResetCount();
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void PrintCount();
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#endif // DEBUG
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static const char* ResolveSymbol(void* address);
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static const int kDeoptTableSerializeEntryCount = 64;
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private:
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struct ExternalReferenceEntry {
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Address address;
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const char* name;
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#ifdef DEBUG
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int count;
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#endif // DEBUG
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};
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explicit ExternalReferenceTable(Isolate* isolate);
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void Add(Address address, const char* name) {
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#ifdef DEBUG
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ExternalReferenceEntry entry = {address, name, 0};
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#else
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ExternalReferenceEntry entry = {address, name};
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#endif // DEBUG
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refs_.Add(entry);
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}
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void AddReferences(Isolate* isolate);
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void AddBuiltins(Isolate* isolate);
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void AddRuntimeFunctions(Isolate* isolate);
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void AddIsolateAddresses(Isolate* isolate);
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void AddAccessors(Isolate* isolate);
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void AddStubCache(Isolate* isolate);
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void AddDeoptEntries(Isolate* isolate);
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void AddApiReferences(Isolate* isolate);
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List<ExternalReferenceEntry> refs_;
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DISALLOW_COPY_AND_ASSIGN(ExternalReferenceTable);
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};
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} // namespace internal
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} // namespace v8
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#endif // V8_EXTERNAL_REFERENCE_TABLE_H_
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