js/src/jit/mips/Bailouts-mips.h@6474c204b198
js/src/jit/mips/Bailouts-mips.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
2 * vim: set ts=8 sts=4 et sw=4 tw=99:
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef jit_mips_Bailouts_mips_h
8 #define jit_mips_Bailouts_mips_h
10 #include "jit/Bailouts.h"
11 #include "jit/JitCompartment.h"
13 namespace js {
14 namespace jit {
16 class BailoutStack
17 {
18 uintptr_t frameClassId_;
19 // This is pushed in the bailout handler. Both entry points into the
20 // handler inserts their own value int lr, which is then placed onto the
21 // stack along with frameClassId_ above. This should be migrated to ip.
22 public:
23 union {
24 uintptr_t frameSize_;
25 uintptr_t tableOffset_;
26 };
28 protected:
29 mozilla::Array<double, FloatRegisters::Total> fpregs_;
30 mozilla::Array<uintptr_t, Registers::Total> regs_;
32 uintptr_t snapshotOffset_;
33 uintptr_t padding_;
35 public:
36 FrameSizeClass frameClass() const {
37 return FrameSizeClass::FromClass(frameClassId_);
38 }
39 uintptr_t tableOffset() const {
40 MOZ_ASSERT(frameClass() != FrameSizeClass::None());
41 return tableOffset_;
42 }
43 uint32_t frameSize() const {
44 if (frameClass() == FrameSizeClass::None())
45 return frameSize_;
46 return frameClass().frameSize();
47 }
48 MachineState machine() {
49 return MachineState::FromBailout(regs_, fpregs_);
50 }
51 SnapshotOffset snapshotOffset() const {
52 MOZ_ASSERT(frameClass() == FrameSizeClass::None());
53 return snapshotOffset_;
54 }
55 uint8_t *parentStackPointer() const {
56 if (frameClass() == FrameSizeClass::None())
57 return (uint8_t *)this + sizeof(BailoutStack);
58 return (uint8_t *)this + offsetof(BailoutStack, snapshotOffset_);
59 }
60 static size_t offsetOfFrameClass() {
61 return offsetof(BailoutStack, frameClassId_);
62 }
63 static size_t offsetOfFrameSize() {
64 return offsetof(BailoutStack, frameSize_);
65 }
66 static size_t offsetOfFpRegs() {
67 return offsetof(BailoutStack, fpregs_);
68 }
69 static size_t offsetOfRegs() {
70 return offsetof(BailoutStack, regs_);
71 }
72 };
74 } // namespace jit
75 } // namespace js
77 #endif /* jit_mips_Bailouts_mips_h */
