1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/jit/mips/Bailouts-mips.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
1.5 + * vim: set ts=8 sts=4 et sw=4 tw=99:
1.6 + * This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef jit_mips_Bailouts_mips_h
1.11 +#define jit_mips_Bailouts_mips_h
1.12 +
1.13 +#include "jit/Bailouts.h"
1.14 +#include "jit/JitCompartment.h"
1.15 +
1.16 +namespace js {
1.17 +namespace jit {
1.18 +
1.19 +class BailoutStack
1.20 +{
1.21 + uintptr_t frameClassId_;
1.22 + // This is pushed in the bailout handler. Both entry points into the
1.23 + // handler inserts their own value int lr, which is then placed onto the
1.24 + // stack along with frameClassId_ above. This should be migrated to ip.
1.25 + public:
1.26 + union {
1.27 + uintptr_t frameSize_;
1.28 + uintptr_t tableOffset_;
1.29 + };
1.30 +
1.31 + protected:
1.32 + mozilla::Array<double, FloatRegisters::Total> fpregs_;
1.33 + mozilla::Array<uintptr_t, Registers::Total> regs_;
1.34 +
1.35 + uintptr_t snapshotOffset_;
1.36 + uintptr_t padding_;
1.37 +
1.38 + public:
1.39 + FrameSizeClass frameClass() const {
1.40 + return FrameSizeClass::FromClass(frameClassId_);
1.41 + }
1.42 + uintptr_t tableOffset() const {
1.43 + MOZ_ASSERT(frameClass() != FrameSizeClass::None());
1.44 + return tableOffset_;
1.45 + }
1.46 + uint32_t frameSize() const {
1.47 + if (frameClass() == FrameSizeClass::None())
1.48 + return frameSize_;
1.49 + return frameClass().frameSize();
1.50 + }
1.51 + MachineState machine() {
1.52 + return MachineState::FromBailout(regs_, fpregs_);
1.53 + }
1.54 + SnapshotOffset snapshotOffset() const {
1.55 + MOZ_ASSERT(frameClass() == FrameSizeClass::None());
1.56 + return snapshotOffset_;
1.57 + }
1.58 + uint8_t *parentStackPointer() const {
1.59 + if (frameClass() == FrameSizeClass::None())
1.60 + return (uint8_t *)this + sizeof(BailoutStack);
1.61 + return (uint8_t *)this + offsetof(BailoutStack, snapshotOffset_);
1.62 + }
1.63 + static size_t offsetOfFrameClass() {
1.64 + return offsetof(BailoutStack, frameClassId_);
1.65 + }
1.66 + static size_t offsetOfFrameSize() {
1.67 + return offsetof(BailoutStack, frameSize_);
1.68 + }
1.69 + static size_t offsetOfFpRegs() {
1.70 + return offsetof(BailoutStack, fpregs_);
1.71 + }
1.72 + static size_t offsetOfRegs() {
1.73 + return offsetof(BailoutStack, regs_);
1.74 + }
1.75 +};
1.76 +
1.77 +} // namespace jit
1.78 +} // namespace js
1.79 +
1.80 +#endif /* jit_mips_Bailouts_mips_h */
