blob: e90c7d957f24c3761c41b6e37a4080f03929239c (
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
|
// Copyright 2011 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_MIPS_FRAME_CONSTANTS_MIPS_H_
#define V8_MIPS_FRAME_CONSTANTS_MIPS_H_
namespace v8 {
namespace internal {
class EntryFrameConstants : public AllStatic {
public:
static constexpr int kCallerFPOffset =
-(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize);
};
class ExitFrameConstants : public TypedFrameConstants {
public:
static constexpr int kSPOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(0);
static constexpr int kCodeOffset = TYPED_FRAME_PUSHED_VALUE_OFFSET(1);
DEFINE_TYPED_FRAME_SIZES(2);
// The caller fields are below the frame pointer on the stack.
static constexpr int kCallerFPOffset = +0 * kPointerSize;
// The calling JS function is between FP and PC.
static constexpr int kCallerPCOffset = +1 * kPointerSize;
// MIPS-specific: a pointer to the old sp to avoid unnecessary calculations.
static constexpr int kCallerSPOffset = +2 * kPointerSize;
// FP-relative displacement of the caller's SP.
static constexpr int kCallerSPDisplacement = +2 * kPointerSize;
static constexpr int kConstantPoolOffset = 0; // Not used.
};
class JavaScriptFrameConstants : public AllStatic {
public:
// FP-relative.
static constexpr int kLocal0Offset =
StandardFrameConstants::kExpressionsOffset;
static constexpr int kLastParameterOffset = +2 * kPointerSize;
static constexpr int kFunctionOffset =
StandardFrameConstants::kFunctionOffset;
// Caller SP-relative.
static constexpr int kParam0Offset = -2 * kPointerSize;
static constexpr int kReceiverOffset = -1 * kPointerSize;
};
} // namespace internal
} // namespace v8
#endif // V8_MIPS_FRAME_CONSTANTS_MIPS_H_
|
