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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_mips32_Bailouts_mips32_h
#define jit_mips32_Bailouts_mips32_h
#include "jit/Bailouts.h"
namespace js {
namespace jit {
class BailoutStack {
uintptr_t frameClassId_;
// This is pushed in the bailout handler. Both entry points into the
// handler inserts their own value int lr, which is then placed onto the
// stack along with frameClassId_ above. This should be migrated to ip.
public:
union {
uintptr_t frameSize_;
uintptr_t tableOffset_;
};
protected:
RegisterDump::FPUArray fpregs_;
RegisterDump::GPRArray regs_;
uintptr_t snapshotOffset_;
uintptr_t padding_;
public:
FrameSizeClass frameClass() const {
return FrameSizeClass::FromClass(frameClassId_);
}
uintptr_t tableOffset() const {
MOZ_ASSERT(frameClass() != FrameSizeClass::None());
return tableOffset_;
}
uint32_t frameSize() const {
if (frameClass() == FrameSizeClass::None()) {
return frameSize_;
}
return frameClass().frameSize();
}
MachineState machine() { return MachineState::FromBailout(regs_, fpregs_); }
SnapshotOffset snapshotOffset() const {
MOZ_ASSERT(frameClass() == FrameSizeClass::None());
return snapshotOffset_;
}
uint8_t* parentStackPointer() const {
if (frameClass() == FrameSizeClass::None()) {
return (uint8_t*)this + sizeof(BailoutStack);
}
return (uint8_t*)this + offsetof(BailoutStack, snapshotOffset_);
}
static size_t offsetOfFrameClass() {
return offsetof(BailoutStack, frameClassId_);
}
static size_t offsetOfFrameSize() {
return offsetof(BailoutStack, frameSize_);
}
static size_t offsetOfFpRegs() { return offsetof(BailoutStack, fpregs_); }
static size_t offsetOfRegs() { return offsetof(BailoutStack, regs_); }
};
} // namespace jit
} // namespace js
#endif /* jit_mips32_Bailouts_mips32_h */
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