blob: 101d8332fb314b5022537c46fcecff6b729c4436 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_EXTERNAL_REFERENCE_TABLE_H_
#define V8_EXTERNAL_REFERENCE_TABLE_H_
#include <vector>
#include "src/address-map.h"
namespace v8 {
namespace internal {
class Isolate;
// ExternalReferenceTable is a helper class that defines the relationship
// between external references and their encodings. It is used to build
// hashmaps in ExternalReferenceEncoder and ExternalReferenceDecoder.
class ExternalReferenceTable {
public:
static ExternalReferenceTable* instance(Isolate* isolate);
~ExternalReferenceTable();
uint32_t size() const { return static_cast<uint32_t>(refs_.length()); }
Address address(uint32_t i) { return refs_[i].address; }
const char* name(uint32_t i) { return refs_[i].name; }
bool is_api_reference(uint32_t i) { return i >= api_refs_start_; }
uint32_t num_api_references() { return size() - api_refs_start_; }
#ifdef DEBUG
void increment_count(uint32_t i) { refs_[i].count++; }
int count(uint32_t i) { return refs_[i].count; }
void ResetCount();
void PrintCount();
#endif // DEBUG
static const char* ResolveSymbol(void* address,
std::vector<char**>* = nullptr);
private:
struct ExternalReferenceEntry {
Address address;
const char* name;
#ifdef DEBUG
int count;
#endif // DEBUG
};
explicit ExternalReferenceTable(Isolate* isolate);
void Add(Address address, const char* name) {
#ifdef DEBUG
ExternalReferenceEntry entry = {address, name, 0};
#else
ExternalReferenceEntry entry = {address, name};
#endif // DEBUG
refs_.Add(entry);
}
void AddReferences(Isolate* isolate);
void AddBuiltins(Isolate* isolate);
void AddRuntimeFunctions(Isolate* isolate);
void AddIsolateAddresses(Isolate* isolate);
void AddAccessors(Isolate* isolate);
void AddStubCache(Isolate* isolate);
void AddApiReferences(Isolate* isolate);
List<ExternalReferenceEntry> refs_;
#ifdef DEBUG
std::vector<char**> symbol_tables_;
#endif
uint32_t api_refs_start_;
DISALLOW_COPY_AND_ASSIGN(ExternalReferenceTable);
};
} // namespace internal
} // namespace v8
#endif // V8_EXTERNAL_REFERENCE_TABLE_H_
|
