132 lines
4 KiB
C++
132 lines
4 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_COMPILER_COMPILER_H_
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#define ART_COMPILER_COMPILER_H_
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#include "dex_file.h"
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#include "base/mutex.h"
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#include "os.h"
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namespace art {
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namespace jit {
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class JitCodeCache;
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class JitLogger;
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} // namespace jit
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namespace mirror {
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class ClassLoader;
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class DexCache;
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} // namespace mirror
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class ArtMethod;
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class CompilerDriver;
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class CompiledMethod;
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template<class T> class Handle;
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class OatWriter;
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class Thread;
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class Compiler {
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public:
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enum Kind {
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kQuick,
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kOptimizing
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};
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enum JniOptimizationFlags {
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kNone = 0x0,
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kFastNative = 0x1,
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kCriticalNative = 0x2,
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};
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static Compiler* Create(CompilerDriver* driver, Kind kind);
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virtual void Init() = 0;
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virtual void UnInit() const = 0;
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virtual bool CanCompileMethod(uint32_t method_idx, const DexFile& dex_file) const = 0;
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virtual CompiledMethod* Compile(const DexFile::CodeItem* code_item,
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uint32_t access_flags,
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InvokeType invoke_type,
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uint16_t class_def_idx,
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uint32_t method_idx,
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Handle<mirror::ClassLoader> class_loader,
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const DexFile& dex_file,
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Handle<mirror::DexCache> dex_cache) const = 0;
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virtual CompiledMethod* JniCompile(uint32_t access_flags,
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uint32_t method_idx,
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const DexFile& dex_file,
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JniOptimizationFlags optimization_flags) const = 0;
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virtual bool JitCompile(Thread* self ATTRIBUTE_UNUSED,
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jit::JitCodeCache* code_cache ATTRIBUTE_UNUSED,
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ArtMethod* method ATTRIBUTE_UNUSED,
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bool osr ATTRIBUTE_UNUSED,
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jit::JitLogger* jit_logger ATTRIBUTE_UNUSED)
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REQUIRES_SHARED(Locks::mutator_lock_) {
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return false;
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}
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virtual uintptr_t GetEntryPointOf(ArtMethod* method) const
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REQUIRES_SHARED(Locks::mutator_lock_) = 0;
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uint64_t GetMaximumCompilationTimeBeforeWarning() const {
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return maximum_compilation_time_before_warning_;
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}
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virtual ~Compiler() {}
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/*
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* @brief Generate and return Dwarf CFI initialization, if supported by the
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* backend.
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* @param driver CompilerDriver for this compile.
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* @returns nullptr if not supported by backend or a vector of bytes for CFI DWARF
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* information.
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* @note This is used for backtrace information in generated code.
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*/
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virtual std::vector<uint8_t>* GetCallFrameInformationInitialization(
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const CompilerDriver& driver ATTRIBUTE_UNUSED) const {
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return nullptr;
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}
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// Returns whether the method to compile is such a pathological case that
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// it's not worth compiling.
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static bool IsPathologicalCase(const DexFile::CodeItem& code_item,
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uint32_t method_idx,
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const DexFile& dex_file);
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protected:
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Compiler(CompilerDriver* driver, uint64_t warning) :
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driver_(driver), maximum_compilation_time_before_warning_(warning) {
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}
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CompilerDriver* GetCompilerDriver() const {
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return driver_;
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}
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private:
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CompilerDriver* const driver_;
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const uint64_t maximum_compilation_time_before_warning_;
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DISALLOW_COPY_AND_ASSIGN(Compiler);
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};
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} // namespace art
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#endif // ART_COMPILER_COMPILER_H_
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