99 lines
3.9 KiB
C++
99 lines
3.9 KiB
C++
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_
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#define ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_
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#include "arch/instruction_set.h"
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#include "base/bit_utils.h"
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#include "base/callee_save_type.h"
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#include "base/enums.h"
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#include "quick/quick_method_frame_info.h"
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#include "registers_x86.h"
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#include "runtime_globals.h"
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namespace art {
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namespace x86 {
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static constexpr uint32_t kX86CalleeSaveAlwaysSpills =
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(1 << art::x86::kNumberOfCpuRegisters); // Fake return address callee save.
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static constexpr uint32_t kX86CalleeSaveRefSpills =
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(1 << art::x86::EBP) | (1 << art::x86::ESI) | (1 << art::x86::EDI);
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static constexpr uint32_t kX86CalleeSaveArgSpills =
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(1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
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static constexpr uint32_t kX86CalleeSaveEverythingSpills =
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(1 << art::x86::EAX) | (1 << art::x86::ECX) | (1 << art::x86::EDX) | (1 << art::x86::EBX);
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static constexpr uint32_t kX86CalleeSaveFpArgSpills =
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(1 << art::x86::XMM0) | (1 << art::x86::XMM1) |
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(1 << art::x86::XMM2) | (1 << art::x86::XMM3);
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static constexpr uint32_t kX86CalleeSaveFpEverythingSpills =
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(1 << art::x86::XMM0) | (1 << art::x86::XMM1) |
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(1 << art::x86::XMM2) | (1 << art::x86::XMM3) |
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(1 << art::x86::XMM4) | (1 << art::x86::XMM5) |
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(1 << art::x86::XMM6) | (1 << art::x86::XMM7);
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class X86CalleeSaveFrame {
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public:
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static constexpr uint32_t GetCoreSpills(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return kX86CalleeSaveAlwaysSpills | kX86CalleeSaveRefSpills |
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(type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveArgSpills : 0) |
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(type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveEverythingSpills : 0);
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}
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static constexpr uint32_t GetFpSpills(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return (type == CalleeSaveType::kSaveRefsAndArgs ? kX86CalleeSaveFpArgSpills : 0) |
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(type == CalleeSaveType::kSaveEverything ? kX86CalleeSaveFpEverythingSpills : 0);
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}
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static constexpr uint32_t GetFrameSize(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return RoundUp((POPCOUNT(GetCoreSpills(type)) /* gprs */ +
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2 * POPCOUNT(GetFpSpills(type)) /* fprs */ +
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1 /* Method* */) * static_cast<size_t>(kX86PointerSize), kStackAlignment);
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}
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static constexpr QuickMethodFrameInfo GetMethodFrameInfo(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return QuickMethodFrameInfo(GetFrameSize(type), GetCoreSpills(type), GetFpSpills(type));
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}
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static constexpr size_t GetFpr1Offset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) -
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(POPCOUNT(GetCoreSpills(type)) +
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2 * POPCOUNT(GetFpSpills(type))) * static_cast<size_t>(kX86PointerSize);
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}
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static constexpr size_t GetGpr1Offset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) -
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POPCOUNT(GetCoreSpills(type)) * static_cast<size_t>(kX86PointerSize);
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}
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static constexpr size_t GetReturnPcOffset(CalleeSaveType type) {
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type = GetCanonicalCalleeSaveType(type);
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return GetFrameSize(type) - static_cast<size_t>(kX86PointerSize);
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}
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};
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} // namespace x86
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} // namespace art
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#endif // ART_RUNTIME_ARCH_X86_CALLEE_SAVE_FRAME_X86_H_
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