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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
// Copyright 2012 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.
#include "src/runtime/runtime.h"
#include "src/assembler.h"
#include "src/contexts.h"
#include "src/handles-inl.h"
#include "src/heap/heap.h"
#include "src/isolate.h"
#include "src/runtime/runtime-utils.h"
namespace v8 {
namespace internal {
// Header of runtime functions.
#define F(name, number_of_args, result_size) \
Object* Runtime_##name(int args_length, Object** args_object, \
Isolate* isolate);
FOR_EACH_INTRINSIC_RETURN_OBJECT(F)
#undef F
#define P(name, number_of_args, result_size) \
ObjectPair Runtime_##name(int args_length, Object** args_object, \
Isolate* isolate);
FOR_EACH_INTRINSIC_RETURN_PAIR(P)
#undef P
#define T(name, number_of_args, result_size) \
ObjectTriple Runtime_##name(int args_length, Object** args_object, \
Isolate* isolate);
FOR_EACH_INTRINSIC_RETURN_TRIPLE(T)
#undef T
#define F(name, number_of_args, result_size) \
{ \
Runtime::k##name, Runtime::RUNTIME, #name, FUNCTION_ADDR(Runtime_##name), \
number_of_args, result_size \
} \
,
#define I(name, number_of_args, result_size) \
{ \
Runtime::kInline##name, Runtime::INLINE, "_" #name, \
FUNCTION_ADDR(Runtime_##name), number_of_args, result_size \
} \
,
static const Runtime::Function kIntrinsicFunctions[] = {
FOR_EACH_INTRINSIC(F)
FOR_EACH_INTRINSIC(I)
};
#undef I
#undef F
void Runtime::InitializeIntrinsicFunctionNames(Isolate* isolate,
Handle<NameDictionary> dict) {
DCHECK(dict->NumberOfElements() == 0);
HandleScope scope(isolate);
for (int i = 0; i < kNumFunctions; ++i) {
const char* name = kIntrinsicFunctions[i].name;
if (name == NULL) continue;
Handle<NameDictionary> new_dict = NameDictionary::Add(
dict, isolate->factory()->InternalizeUtf8String(name),
Handle<Smi>(Smi::FromInt(i), isolate), PropertyDetails::Empty());
// The dictionary does not need to grow.
CHECK(new_dict.is_identical_to(dict));
}
}
const Runtime::Function* Runtime::FunctionForName(Handle<String> name) {
Heap* heap = name->GetHeap();
int entry = heap->intrinsic_function_names()->FindEntry(name);
if (entry != kNotFound) {
Object* smi_index = heap->intrinsic_function_names()->ValueAt(entry);
int function_index = Smi::cast(smi_index)->value();
return &(kIntrinsicFunctions[function_index]);
}
return NULL;
}
const Runtime::Function* Runtime::FunctionForEntry(Address entry) {
for (size_t i = 0; i < arraysize(kIntrinsicFunctions); ++i) {
if (entry == kIntrinsicFunctions[i].entry) {
return &(kIntrinsicFunctions[i]);
}
}
return NULL;
}
const Runtime::Function* Runtime::FunctionForId(Runtime::FunctionId id) {
return &(kIntrinsicFunctions[static_cast<int>(id)]);
}
const Runtime::Function* Runtime::RuntimeFunctionTable(Isolate* isolate) {
if (isolate->external_reference_redirector()) {
// When running with the simulator we need to provide a table which has
// redirected runtime entry addresses.
if (!isolate->runtime_state()->redirected_intrinsic_functions()) {
size_t function_count = arraysize(kIntrinsicFunctions);
Function* redirected_functions = new Function[function_count];
memcpy(redirected_functions, kIntrinsicFunctions,
sizeof(kIntrinsicFunctions));
for (size_t i = 0; i < function_count; i++) {
ExternalReference redirected_entry(static_cast<Runtime::FunctionId>(i),
isolate);
redirected_functions[i].entry = redirected_entry.address();
}
isolate->runtime_state()->set_redirected_intrinsic_functions(
redirected_functions);
}
return isolate->runtime_state()->redirected_intrinsic_functions();
} else {
return kIntrinsicFunctions;
}
}
std::ostream& operator<<(std::ostream& os, Runtime::FunctionId id) {
return os << Runtime::FunctionForId(id)->name;
}
} // namespace internal
} // namespace v8
|
