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/*
* Copyright (C) 2012 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_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
#define ART_RUNTIME_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
#include "arch/instruction_set.h"
#include "base/mutex.h"
#include "runtime.h"
#include "thread-inl.h"
// Specific frame size code is in architecture-specific files. We include this to compile-time
// specialize the code.
#include "arch/arm/quick_method_frame_info_arm.h"
#include "arch/arm64/quick_method_frame_info_arm64.h"
#include "arch/mips/quick_method_frame_info_mips.h"
#include "arch/x86/quick_method_frame_info_x86.h"
#include "arch/x86_64/quick_method_frame_info_x86_64.h"
namespace art {
namespace mirror {
class ArtMethod;
} // namespace mirror
class ScopedQuickEntrypointChecks {
public:
explicit ScopedQuickEntrypointChecks(Thread *self) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
: self_(self) {
if (kIsDebugBuild) {
TestsOnEntry();
}
}
explicit ScopedQuickEntrypointChecks() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
: self_(kIsDebugBuild ? Thread::Current() : nullptr) {
if (kIsDebugBuild) {
TestsOnEntry();
}
}
~ScopedQuickEntrypointChecks() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
if (kIsDebugBuild) {
TestsOnExit();
}
}
private:
void TestsOnEntry() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
Locks::mutator_lock_->AssertSharedHeld(self_);
self_->VerifyStack();
}
void TestsOnExit() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
Locks::mutator_lock_->AssertSharedHeld(self_);
self_->VerifyStack();
}
Thread* const self_;
};
static constexpr size_t GetCalleeSaveFrameSize(InstructionSet isa, Runtime::CalleeSaveType type) {
// constexpr must be a return statement.
return (isa == kArm || isa == kThumb2) ? arm::ArmCalleeSaveFrameSize(type) :
isa == kArm64 ? arm64::Arm64CalleeSaveFrameSize(type) :
isa == kMips ? mips::MipsCalleeSaveFrameSize(type) :
isa == kX86 ? x86::X86CalleeSaveFrameSize(type) :
isa == kX86_64 ? x86_64::X86_64CalleeSaveFrameSize(type) :
isa == kNone ? (LOG(FATAL) << "kNone has no frame size", 0) :
(LOG(FATAL) << "Unknown instruction set" << isa, 0);
}
// Note: this specialized statement is sanity-checked in the quick-trampoline gtest.
static constexpr size_t GetConstExprPointerSize(InstructionSet isa) {
// constexpr must be a return statement.
return (isa == kArm || isa == kThumb2) ? kArmPointerSize :
isa == kArm64 ? kArm64PointerSize :
isa == kMips ? kMipsPointerSize :
isa == kX86 ? kX86PointerSize :
isa == kX86_64 ? kX86_64PointerSize :
isa == kNone ? (LOG(FATAL) << "kNone has no pointer size", 0) :
(LOG(FATAL) << "Unknown instruction set" << isa, 0);
}
// Note: this specialized statement is sanity-checked in the quick-trampoline gtest.
static constexpr size_t GetCalleeSaveReturnPcOffset(InstructionSet isa,
Runtime::CalleeSaveType type) {
return GetCalleeSaveFrameSize(isa, type) - GetConstExprPointerSize(isa);
}
} // namespace art
#endif // ART_RUNTIME_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
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