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/*
* Copyright 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_JIT_JIT_H_
#define ART_RUNTIME_JIT_JIT_H_
#include <unordered_map>
#include "atomic.h"
#include "base/macros.h"
#include "base/mutex.h"
#include "base/timing_logger.h"
#include "gc_root.h"
#include "jni.h"
#include "object_callbacks.h"
#include "thread_pool.h"
namespace art {
class ArtMethod;
class CompilerCallbacks;
struct RuntimeArgumentMap;
namespace jit {
class JitCodeCache;
class JitInstrumentationCache;
class JitOptions;
class Jit {
public:
static constexpr bool kStressMode = kIsDebugBuild;
static constexpr size_t kDefaultCompileThreshold = kStressMode ? 1 : 1000;
virtual ~Jit();
static Jit* Create(JitOptions* options, std::string* error_msg);
bool CompileMethod(ArtMethod* method, Thread* self)
SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
void CreateInstrumentationCache(size_t compile_threshold);
void CreateThreadPool();
CompilerCallbacks* GetCompilerCallbacks() {
return compiler_callbacks_;
}
const JitCodeCache* GetCodeCache() const {
return code_cache_.get();
}
JitCodeCache* GetCodeCache() {
return code_cache_.get();
}
void DeleteThreadPool();
// Dump interesting info: #methods compiled, code vs data size, compile / verify cumulative
// loggers.
void DumpInfo(std::ostream& os);
// Add a timing logger to cumulative_timings_.
void AddTimingLogger(const TimingLogger& logger);
private:
Jit();
bool LoadCompiler(std::string* error_msg);
// JIT compiler
void* jit_library_handle_;
void* jit_compiler_handle_;
void* (*jit_load_)(CompilerCallbacks**);
void (*jit_unload_)(void*);
bool (*jit_compile_method_)(void*, ArtMethod*, Thread*);
// Performance monitoring.
bool dump_info_on_shutdown_;
CumulativeLogger cumulative_timings_;
std::unique_ptr<jit::JitInstrumentationCache> instrumentation_cache_;
std::unique_ptr<jit::JitCodeCache> code_cache_;
CompilerCallbacks* compiler_callbacks_; // Owned by the jit compiler.
DISALLOW_COPY_AND_ASSIGN(Jit);
};
class JitOptions {
public:
static JitOptions* CreateFromRuntimeArguments(const RuntimeArgumentMap& options);
size_t GetCompileThreshold() const {
return compile_threshold_;
}
size_t GetCodeCacheCapacity() const {
return code_cache_capacity_;
}
bool DumpJitInfoOnShutdown() const {
return dump_info_on_shutdown_;
}
bool UseJIT() const {
return use_jit_;
}
void SetUseJIT(bool b) {
use_jit_ = b;
}
private:
bool use_jit_;
size_t code_cache_capacity_;
size_t compile_threshold_;
bool dump_info_on_shutdown_;
JitOptions() : use_jit_(false), code_cache_capacity_(0), compile_threshold_(0),
dump_info_on_shutdown_(false) { }
DISALLOW_COPY_AND_ASSIGN(JitOptions);
};
} // namespace jit
} // namespace art
#endif // ART_RUNTIME_JIT_JIT_H_
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