/*
* Copyright ( C ) 2014 The Android Open Source Project
*
* Licensed under the Apache License , Version 2 . 0 ( the " License " ) ;
* you may not use this file except in compliance with the License .
* You may obtain a copy of the License at
*
* http : //www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing , software
* distributed under the License is distributed on an " AS IS " BASIS ,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND , either express or implied .
* See the License for the specific language governing permissions and
* limitations under the License .
*/
#ifndef ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_
#define ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_
#include "arch/instruction_set.h"
#include "base/bit_utils.h"
#include "base/callee_save_type.h"
#include "base/macros.h"
#include "base/pointer_size.h"
#include "quick/quick_method_frame_info.h"
#include "registers_x86_64.h"
#include "runtime_globals.h"
namespace art HIDDEN {
namespace x86_64 {
static constexpr uint32_t kX86_64CalleeSaveAlwaysSpills =
(1 << art::x86_64::kNumberOfCpuRegisters); // Fake return address callee save.
static constexpr uint32_t kX86_64CalleeSaveRefSpills =
(1 << art::x86_64::RBX) | (1 << art::x86_64::RBP) | (1 << art::x86_64::R12) |
(1 << art::x86_64::R13) | (1 << art::x86_64::R14) | (1 << art::x86_64::R15);
static constexpr uint32_t kX86_64CalleeSaveArgSpills =
(1 << art::x86_64::RSI) | (1 << art::x86_64::RDX) | (1 << art::x86_64::RCX) |
(1 << art::x86_64::R8) | (1 << art::x86_64::R9);
static constexpr uint32_t kX86_64CalleeSaveEverythingSpills =
(1 << art::x86_64::RAX) | (1 << art::x86_64::RCX) | (1 << art::x86_64::RDX) |
(1 << art::x86_64::RSI) | (1 << art::x86_64::RDI) | (1 << art::x86_64::R8) |
(1 << art::x86_64::R9) | (1 << art::x86_64::R10) | (1 << art::x86_64::R11);
static constexpr uint32_t kX86_64CalleeSaveFpArgSpills =
(1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) | (1 << art::x86_64::XMM2) |
(1 << art::x86_64::XMM3) | (1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) |
(1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7);
static constexpr uint32_t kX86_64CalleeSaveFpSpills =
(1 << art::x86_64::XMM12) | (1 << art::x86_64::XMM13) |
(1 << art::x86_64::XMM14) | (1 << art::x86_64::XMM15);
static constexpr uint32_t kX86_64CalleeSaveFpEverythingSpills =
(1 << art::x86_64::XMM0) | (1 << art::x86_64::XMM1) |
(1 << art::x86_64::XMM2) | (1 << art::x86_64::XMM3) |
(1 << art::x86_64::XMM4) | (1 << art::x86_64::XMM5) |
(1 << art::x86_64::XMM6) | (1 << art::x86_64::XMM7) |
(1 << art::x86_64::XMM8) | (1 << art::x86_64::XMM9) |
(1 << art::x86_64::XMM10) | (1 << art::x86_64::XMM11);
class X86_64CalleeSaveFrame {
public :
static constexpr uint32_t GetCoreSpills(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return kX86_64CalleeSaveAlwaysSpills | kX86_64CalleeSaveRefSpills |
(type == CalleeSaveType::kSaveRefsAndArgs ? kX86_64CalleeSaveArgSpills : 0 ) |
(type == CalleeSaveType::kSaveEverything ? kX86_64CalleeSaveEverythingSpills : 0 );
}
static constexpr uint32_t GetFpSpills(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return kX86_64CalleeSaveFpSpills |
(type == CalleeSaveType::kSaveRefsAndArgs ? kX86_64CalleeSaveFpArgSpills : 0 ) |
(type == CalleeSaveType::kSaveEverything ? kX86_64CalleeSaveFpEverythingSpills : 0 );
}
static constexpr uint32_t GetFrameSize(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return RoundUp((POPCOUNT(GetCoreSpills(type)) /* gprs */ +
POPCOUNT(GetFpSpills(type)) /* fprs */ +
1 /* Method* */) * static_cast<size_t>(kX86_64PointerSize), kStackAlignment);
}
static constexpr QuickMethodFrameInfo GetMethodFrameInfo(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return QuickMethodFrameInfo(GetFrameSize(type), GetCoreSpills(type), GetFpSpills(type));
}
static constexpr size_t GetFpr1Offset(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return GetFrameSize(type) -
(POPCOUNT(GetCoreSpills(type)) +
POPCOUNT(GetFpSpills(type))) * static_cast <size_t>(kX86_64PointerSize);
}
static constexpr size_t GetGpr1Offset(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return GetFrameSize(type) -
POPCOUNT(GetCoreSpills(type)) * static_cast <size_t>(kX86_64PointerSize);
}
static constexpr size_t GetReturnPcOffset(CalleeSaveType type) {
type = GetCanonicalCalleeSaveType(type);
return GetFrameSize(type) - static_cast <size_t>(kX86_64PointerSize);
}
};
} // namespace x86_64
} // namespace art
#endif // ART_RUNTIME_ARCH_X86_64_CALLEE_SAVE_FRAME_X86_64_H_
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